38results about How to "Reduced gravitational potential energy" patented technology

The invention discloses an agricultural rainwater collecting and power generating device. The agricultural rainwater collecting and power generating device comprises a water collecting device, a first processing chamber and a second processing chamber and is characterized in that the first processing chamber comprises a filtering box and a power generating box, an impeller is arranged in the power generating box and fixed in the inner cavity of the power generating box through a first fixing rack, a drive wheel is mounted on the rear side of the impeller, a second fixing plate is arranged on the left end of the power generating box, a driven wheel is mounted on the second fixing plate, the drive wheel is connected with the driven wheel through a belt, a power generating wheel is mounted on the rear side of the driven wheel, a power generating brush is mounted at the bottom end of the power generating wheel, and a power storage device is connected to the left end of the power generating brush. The agricultural rainwater collecting and power generating device has the advantages that the gravitational potential energy of rainwater is converted into electric energy and stored, dual utilization of rainwater substances and energy is achieved, energy conservation and environment protection are achieved, and resource waste is reduced.

The invention discloses a gear shifting and sliding mechanism for a carbon-free cart for traveling up and down a hill. The gear shifting and sliding mechanism comprises a power transmission module and an electronic control module. The power transmission module comprises a rear driving wheel half axle, a rear driven wheel half axle and a winding shaft provided with a cone axle sleeve. The rear driving wheel half axle is connected with an inside and outside spline sleeve capable of axially moving through a spline, and the sleeve is connected with the winding shaft through two pairs of constant mesh gears. The electronic control module comprises a single chip microcomputer, an infrared tube, a wheel speed sensor and two direct current type electromagnets capable of making the constant mesh gears shift gears. When the carbon-free cart travels up and down the hill, the single chip microcomputer sends different instructions according to electrical signals sent by the infrared tube and the grating wheel speed sensor to control the different direct current type electromagnets to be powered on or powered off, so that a power transmission line is converted between the two pairs of constant mesh gears to finish gear conversion between a level road and a ramp. The gear shifting and sliding mechanism has the advantages of being capable of performing intelligent detection, accurately changing driving force, saving gravitational potential energy and making the cart have a uniform traveling speed and the like.

The invention provides a sponge grinding block production line. The sponge grinding block production line comprises an uncoiling device, a surface treatment device, a sand embedding device, a drying device and a sponge combination device which are sequentially arranged in the thin film operation direction. The invention further provides a sponge grinding block production method. The method adopts the above devices and includes the following steps of uncoiling, surface treatment, static sand embedding, drying and sponge combination. Continuous and automatic machining can be sequentially finished on the same production line, the occupied space is small, a specially-assigned person on duty is not needed in all the processes, therefore, the labor force is saved, the labor intensity is relieved, and the production efficiency is improved; a thin film is subjected to surface treatment through the production method, the surface of the thin film is rough, the adsorption capacity can be improved, and gluing is more uniform; and by means of a metal layer electroplated on the surface of the thin film, the strength of the thin film is improved, gluing and sand embedding are facilitated, and the product quality is further guaranteed.

The invention discloses an anti-falling device for a high-altitude robot based on rotation in cooperation with gravity sensing. The anti-falling device structurally comprises an anti-skid foot stool,a support, a bearing connecting seat, a rotating blade and a sensitive anti-falling device. The rotating blade stops rotating together with a gear connecting rod, a rotating movable ring descends andis connected with an electric power transmission ring; meanwhile, an unmanned aerial vehicle starts to fall freely at high altitude, and a gravity sensor senses gravitational potential energy at the moment; and then a power transmission block can start a control power supply only by simultaneously triggering the unmanned aerial vehicle and the gravity sensor. The control power supply simultaneously starts an extrusion switch device and a loosening switch device, the unmanned aerial vehicle is prevented from moving up and down in high-altitude operation to trigger a single switch, and the appearance size is prevented from being increased, so that the starting of the anti-falling device is safer and more accurate; a parachute is ejected upwards together with a limit elastic block, by a parachute mode, it is sufficient to cope with vertical height differences, the gravitational potential energy is directly reduced by reducing the descent speed, and the protection effect of the unmanned aerial vehicle is fundamentally improved.

The invention discloses a new nodular cast iron pouring system including a sprue, the sprue is provided with a pouring cup used for pouring a liquid metal, left and right sides of the sprue are connected with cross pouring gates, each cross pouring gate is provided with a plurality of ingates, the ingates are connected with a casting cavity, and are used for leading a metal liquid to the casting cavity, the sum of the cross-sectional areas of the ingates is greater than the sum of the cross-sectional areas of the cross pouring gates, the sum of the cross-sectional areas of the cross pouring gates is greater than the cross-sectional area of the sprue, the ratio of the sum of the cross-sectional areas of the ingates to the cross-sectional area of the sprue is 1.85-2.15, and the ratio of the sum of the cross-sectional areas of the cross pouring gates to the cross-sectional area of the sprue is 1.65-1.45. By the way, the new nodular cast iron pouring system has small impact on the casting cavity, greatly reduces defects of sand holes, reduces iron liquid gravity potential energy, meanwhile provides excellent slag prevention effect, reduces the defects of the sand holes and slag holes, and greatly improves the internal and surface quality of nodular iron castings.

The invention provides a recorder and pipeline maintenance equipment. A recording part in the recorder is suspended in a sealed casing through transparent liquid contained in the sealed casing, and the sealed casing is fixedly connected with an external device. The recording part comprises a camera and a counterweight component; the counterweight component is used for ensuring that the overall gravitational potential energy of the recording part is the minimum when the camera performs image shooting at an upright vision angle. As the recording part is suspended in the sealed casing through the transparent liquid in the sealed casing, the movement between the recording part and the sealing casing is not completely bound. Even if the sealed casing rotates with the external part, the recording part can be suspended in the sealed casing at a fixed and upright shooting vision angle, and further ensures that an image watched by a user is shot at an upright vision angle, the user does not need to change a watch gesture with the rotation of an image or manually rotate display equipment to obtain an upright watch vision angle when performing watching, and the user experience is greatly enhanced.

The invention discloses a double-layer battery towing bracket for a new energy automobile, and relates to the technical field of storage battery towing brackets. The double-layer battery towing bracket comprises a box body, a conveying platform, an electric screw rod device, a transmission device and a battery sleeve plate; the battery sleeve plate is in threaded running fit with the electric screw rod device; the battery sleeve plate is in sliding fit with the box body; the transmission device is in meshing transmission fit with the battery sleeve plate. The bracket is designed to be of a frame structure, so that materials are saved, and meanwhile, the self weight is reduced; through meshing transmission of a rotating gear and a rack, a faulty battery is transferred to an intermediate transfer platform, and the faulty battery is transferred to the bottom of the box body through the conveying platform, so that the gravitational potential energy of the faulty battery is reduced, and thestability of the whole device is guaranteed; a standby battery is lifted through the electric screw rod device; the purpose of rapidly replacing the new energy battery is achieved, it is guaranteed that people can autonomously replace the standby battery in emergency, and convenience is brought to traveling of people.

The invention belongs to the technical field of mechanical maintenance, and particularly relates to a mechanical device supporting and maintenance device. The device aims to solve the problems that when maintained, existing mechanical equipment is always directly suspended to be conveniently maintained, but with increase of the weight of the mechanical equipment, the gravity damage to a fixing frame of the mechanical equipment is larger, meanwhile, the mechanical equipment is suspended, the gravitational potential energy of the mechanical equipment for descending is larger with increase of theweight, and potential safety hazards are larger. The device comprises a bottom plate, and the outer wall of the top of the bottom plate is fixedly connected with two supporting seats. By arranging ahydraulic cylinder, ejecting blocks, connecting blocks and a pressure reducing plate, the height of a placing plate is adjusted according to the weight of the mechanical equipment when the mechanicalequipment is maintained, so that the gravitational potential energy of the mechanical equipment is reduced; due to the ejecting blocks distributed in layers, the connecting blocks on the pressure reducing plate are limited, so that the height of the pressure reducing plate is adjusted, then the height of the placing plate is adjusted, and the potential safety hazards are reduced.

The invention discloses a community running machine. The community running machine comprises a support frame and a pedal, wherein an adjusting assembly is arranged on the support frame, and the adjusting assembly adjusts the inclination angle of the pedal; a rolling assembly is arranged on the pedal, the rolling assembly comprises a rolling shaft and a linkage plate, a child enables the rolling shaft to rotate by virtue of the friction between the feet and the rolling shaft, and thus the purpose of exercising the body is achieved; a rotation speed switch is arranged, so when the rotation of the rolling shaft is too fast, the adjusting assembly is used for adjusting the inclination of the pedal to be the minimum, the vertical distance between the child and the ground is reduced, the self gravitational potential energy is reduced, the drive force for the rolling shaft is reduced, and the rotation speed of the rolling shaft is reduced; when the inclination of the pedal is adjusted to be the minimum, the linkage plate moves towards the direction facing the support frame, a deceleration assembly is arranged, the deceleration assembly comprises butting parts, when the linkage plate slides to the side, close to the support frame, of a first chute, the butting parts abut against the end part of the rolling shaft, then the rotation of the rolling shaft is hindered, the rotation speed ofthe rolling shaft is further reduced, and thus the child can play the community running machine safely.

The invention belongs to the technical field of spinal fusion, in particular to a bone crushing device for spinal fusion surgery, and provides the following scheme that the bone crushing device comprises a base, supporting plates are fixedly connected to the two ends of the outer wall of the top of the base, and the outer walls of the opposite sides of the two supporting plates are fixedly connected with the same bone crushing box; the outer walls of the tops of the two supporting plates are fixedly connected with the same top frame, and the outer wall of the bottom of the top frame is fixedly connected with two second air cylinders. According to the bone crushing device, the collecting assembly is arranged, after bone crushing operation is finished, bone is retreated through the retreatment assembly, then the bone is guided to the position above the collecting frame through a net rack and a flow guide plate, in the descending process, the bone is in contact with a contact buffer rod arranged in the collecting frame, and the descending height of crushed bone is shortened; therefore, the gravitational potential energy of descending is reduced, it is ensured that after falling into the collecting frame, the garbage is not damaged due to collision and collected through the collecting assembly, and convenience and high efficiency are achieved.

The invention discloses a maternal and infant multi-purpose sickbed for the obstetrics department, and belongs to the technical field of medical instruments, the maternal and infant multi-purpose sickbed comprises a sickbed body and supporting legs fixedly connected to the outer wall of the bottom of the sickbed body, a positioning seat is fixedly connected to the ends, away from the sickbed body, of the supporting legs, and rolling wheels are rotationally connected to the inner walls of the two sides of the positioning seat; a second guardrail is fixedly connected to the outer wall of the top of the sickbed body, a driving assembly is fixedly connected to one side of the sickbed body, an outer bed body is fixedly connected to the outer wall of the top of the driving assembly, and a rotating assembly is arranged in the outer bed body. According to the infant nursing bed, a puerpera can be fed without getting out of the bed, the infant cannot be bruised when the puerpera has a rest, the puerpera and the infant can be well protected, meanwhile, the inner bed body can shake left and right through the rotating assembly, so that the infant can fall asleep more quickly, and the nursing effect is better. And rest and body recovery of the lying-in woman are facilitated.

The invention belongs to the field of resource recycling, and particularly relates to a building waste resource recycling device. The device comprises a movable cover plate, a feeding cylinder is arranged at the bottom of the movable cover plate, the bottom of the movable cover plate is fixedly connected with the top of the feeding cylinder, a processing cylinder is arranged at the bottom of the feeding cylinder, the bottom of the feeding cylinder is fixedly connected with the top of the processing cylinder, a discharging cylinder is arranged at the bottom of the processing cylinder, the bottom of the processing cylinder is fixedly connected with the top of the discharging cylinder, auxiliary cylinders are symmetrically arranged at the top of the discharging cylinder, the top of the discharging cylinder is fixedly connected with right ends of the auxiliary cylinders, transmission columns are symmetrically arranged at the left end of the processing cylinder, the left end of the processing cylinder is movably connected with the right ends of the transmission columns, roll shafts are symmetrically arranged in the processing cylinder, the inner wall of the processing cylinder is movably connected with two ends of the roll shafts, a filtering mechanism is arranged under the roll shafts, and the two ends of the filtering mechanism are fixedly connected with the inner wall of the processing cylinder.

The invention discloses a demolding structure of an injection mold, and belongs to the technical field of molds. The demolding structure of the injection mold comprises a base, a fixed mold is fixedlyconnected to the rear side of the top of an injection mold base, three rows of injection molding grooves distributed in an array mode are formed in the front face of the fixed mold, the side face ofthe fixed mold communicates with an injection pipe communicating with the injection molding grooves, a movable mold is slidably connected to the position, located in front of the fixed mold, of the top of the base, the fixed mold and the movable mold are connected through a mold closing unit, an ejection unit for ejecting an injection molding part is connected to the back face of the fixed mold, and a material receiving unit is connected to the rear end of the side face of the base. By arranging a supporting shaft, a mounting plate, a driving shaft, a mounting shaft, a second electric cylinder, a receiving hopper, a linkage gear, a transmission belt, a follow-up gear, an L-shaped plate, an arc-shaped toothed plate, a trapezoidal block and a conveying belt, the problem that the injection molding part falls down from a high position and collides with the injection molding part in a collecting area, and consequently the injection molding part is damaged is solved, and the defective rate of the injection molding part is reduced.

The invention relates to the technical field of machine tool beds, and discloses a flow-guiding anti-splashing mechanism for preventing cooling water from splashing out of a water tank. The flow-guiding anti-splashing mechanism comprises a flow guiding unit and an anti-splashing unit which are arranged below a cooling water self-flowing part of a machine tool, the flow guiding unit is arranged close to the end of the cooling water self-flowing part, the flow guiding unit comprises an L-shaped guiding flow-division plate and a plurality of first leakage holes formed in the guiding flow-divisionplate, the guiding flow-division plate comprises a guiding part and a flow-division part, the plurality of first leakage holes are uniformly distributed on the flow-division part, one end of the flow-division part is arranged at the bottom end of the guiding part and is positioned on one side of the cooling water self-flowing part, the other end of the flow-division part is positioned on the other side of the cooling water self-flowing part, and the anti-splashing unit is located beside the flow guiding unit and is far away from the end of the cooling water self-flowing part. According to thescheme, the cooling water can be prevented from splashing out of the water tank, so that the possibility that a workshop is polluted is reduced.

The invention relates to a gas film rigidity measuring method of a gas bearing. In the method for measuring the gas film rigidity of the gas bearing, the to-be-measured gas bearing is fixed through the retainer, the retainer and the to-be-measured gas bearing form a spring mass system, an eccentric distance is formed between the to-be-measured gas bearing and a shaft system, and according to the vibration condition of the gas bearing, external excitation is applied to the to-be-measured gas bearing under the condition of no lubricating gas, the non-lubrication rigidity of the gas bearing is measured, the external excitation is applied to the gas bearing to be measured in the presence of lubricating gas, the composite rigidity of the gas bearing is measured, and then the rigidity obtained through two times of measurement is subtracted to obtain the gas film rigidity of the gas bearing. The rigidity of the gas bearing is calculated and measured according to the vibration condition of the gas bearing subjected to external excitation, the measurement error of the gas film rigidity of the gas bearing can be reduced, and the measurement precision of the gas film rigidity of the gas bearing is improved.

The invention discloses a buried energy saving lamp applied to urban planning. The buried energy-saving lamp applied to urban planning comprises a shell and a lamp box, a mounting groove is formed in the shell, a fixing groove is formed in the inner bottom wall of the mounting groove, two L-shaped rods are slidably connected to the fixing groove, two fixing blocks are fixedly connected to the bottom wall of the lamp box, clamping grooves matched with the L-shaped rods in size and position are formed in the opposite sides of the two fixing blocks, a mechanism groove is formed in the shell, and a driving mechanism is arranged in the mechanism groove. After the lamp box is placed in a mounting groove, an inserting rod is inserted into an inserting groove, a protruding block is matched with a groove, primary fixing of the lamp box and a shell is achieved, then a rotating rod is rotated, at the moment, a first threaded rod and a second threaded rod rotate at the same time, two moving blocks are driven to move back to back till two L-shaped rods enter clamping grooves, and secondary fixing of the lamp box and the shell is achieved; and the double fixation effectively ensures the accuracy of the mounting position of the lamp box, and meanwhile, the lamp box is detachably mounted, so that a worker can conveniently carry out maintenance work.

The invention discloses a power generation mechanism filled with slurry. The power generation mechanism comprises a pipe body, a buffer mechanism and a power generation device, wherein the pipe body is provided with a feeding channel and a discharging channel, buffer parts which are communicated with each other are arranged between the feeding channel and the discharging channel, and the buffer parts are used for allowing the slurry to enter through the feeding channel and to be discharged from the discharging channel; the buffer mechanism is rotatably arranged in the buffer parts, so that the slurry enters and impacts the buffer mechanism to rotate; and the power generation device is in transmission connection with the buffer mechanism, and when the slurry impacts the buffer mechanism to rotate, the power generation device rotates together with the buffer mechanism to convert the slurry into electric energy.

The invention relates to the technical field of glass processing, and discloses a self-cleaning type glass product processing device which comprises a processing table. A processing mechanism is arranged on the top surface of the processing table, and a cleaning mechanism is arranged in the processing table. Through the arrangement of the cleaning mechanism, when a cutting step is started, water flow is automatically guided to a channel passing through a filter plate for filtering operation, so that chippings and powder removed through the water flow in the cutting step are filtered out, and the problems that the chippings and powder removed through the water flow are difficult to remove, and equipment is damaged due to the fact that the chippings and powder enter a water pump are solved;and guiding of the water flow is automatically stopped after the cutting step, and the water flow without the cleaning effect is guided to a channel without passing through the filter plate, so that the problem that the service life of the filter plate is greatly shortened due to continuous impact of the water flow on the filter plate is avoided, and the problem that water circulation cannot be achieved due to low water flow backflow efficiency due to the fact that the flow speed and flow of the water flow are reduced due to the fact that the powder needs to pass through the filter plate and holes of the filter plate are small are solved.

The invention relates to the technical field of biomass gasification, and discloses a water-cooling fire grate type biomass gasifier which comprises an ash passing channel, a water tank is fixedly installed at the bottom of the ash passing channel, an ash discharging hopper is fixedly installed at the upper end of the ash passing channel, and an energy reducing device is arranged on the inner side wall of the ash passing channel. A turntable is fixedly mounted in the middle of the energy reducing device. The energy reducing device is arranged in the ash passing channel, gravitational potential energy of ash is used as power for rotation of the fan blades to reduce the gravitational potential energy of the ash, meanwhile, the contact area of the fan blades and the ash is increased through the fan blades and the through holes of the fan blades, and heat of the ash passes through the eccentric rod and the heat conduction ring, the heat is used for the expansion effect of gas in the gas containing cavity to reduce the initial temperature of ash, the water impact phenomenon is reduced by reducing the potential energy and temperature of downward impact of the ash, the temperature of water vapor is reduced, and the impact phenomenon in the water tank is reduced.

The invention discloses a shifting and gliding mechanism for a carbonless trolley up and downhill, which includes a power transmission assembly and an electric control assembly; the power transmission assembly includes a rear driving wheel half shaft, a rear driven wheel half shaft and a tapered bush The winding shaft and the rear driving wheel semi-shaft are connected with an axially movable inner and outer spline sleeve through a spline, and the sleeve and the winding shaft are connected by two pairs of constant mesh gears; the electric control component includes a single-chip microcomputer and is electrically connected to the single-chip microcomputer Infrared pair tube, wheel speed sensor and two DC electromagnets that can shift the constant mesh gear; when going up and downhill, the single-chip microcomputer sends different commands to control different DC gears according to the electrical signals sent by the infrared pair tube and grating wheel speed sensor The power on and off of the type electromagnet makes the power transmission route switch between two pairs of constant mesh gear pairs, and completes the gear conversion between the flat road and the ramp. The invention has the advantages of being able to carry out intelligent detection, accurately changing the driving force, saving gravitational potential energy and making the traveling speed of the trolley uniform, and the like.

The invention discloses a smart home door capable of receiving express, and relates to the technical field of smart home products. The smart home door is characterized by comprising a door plate, an express delivery throwing bin is arranged in the door plate, and the express delivery throwing bin communicates with the outside through an express delivery throwing opening; an overturning plate is rotationally installed on the express delivery throwing opening, and a tray device which slides along the express delivery throwing bin under the thrust effect of the overturning plate so as to receive the express delivery is arranged on one side of the overturning plate; two express transfer rods for transferring the received express to an express splitting device are installed on the tray device in a sliding mode; and a blade for cutting express boxes in the express moving process is arranged between the two express transfer rods. The technical effect is that the express storage device has the advantage that the express are processed and stored.

The invention relates to the technical field of machine tool beds, and discloses a flow-guiding anti-splashing mechanism for preventing cooling water from splashing out of a water tank. The flow-guiding anti-splashing mechanism comprises a flow guiding unit and an anti-splashing unit which are arranged below a cooling water self-flowing part of a machine tool, the flow guiding unit is arranged close to the end of the cooling water self-flowing part, the flow guiding unit comprises an L-shaped guiding flow-division plate and a plurality of first leakage holes formed in the guiding flow-divisionplate, the guiding flow-division plate comprises a guiding part and a flow-division part, the plurality of first leakage holes are uniformly distributed on the flow-division part, one end of the flow-division part is arranged at the bottom end of the guiding part and is positioned on one side of the cooling water self-flowing part, the other end of the flow-division part is positioned on the other side of the cooling water self-flowing part, and the anti-splashing unit is located beside the flow guiding unit and is far away from the end of the cooling water self-flowing part. According to thescheme, the cooling water can be prevented from splashing out of the water tank, so that the possibility that a workshop is polluted is reduced.

The invention provides a chemical tool protection box with an anti-dropping function. The chemical tool protection box comprises a protection box body, a top press plate, an outer covering box body, avibration reduction spring layer, a buffer layer, a lateral edge protection air pad, a placing groove and a top protection air pad, wherein the top press plate is positioned on the top of the protection box body; the top press plate and the protection box body are mutually embedded; the buffer layer is positioned inside the protection box body; the buffer layer is bonded to the protection box body; the vibration reduction spring layer is positioned at the left side of the inside of the buffer layer and is fixedly connected with the buffer layer; the outer covering box body is positioned at the left side of the inside of the protection box body and is provided with the buffer layer; the buffer layer is made of multilayer vibration reduction materials; the vibration materials become harderfrom the innerst layer to the outset layer ; the peripheral dimension of the buffer layer is identical to the inside dimension of the protection box body; through the buffer layer, the gravity potential energy of the tool box after falling can be reduced to the minimum through the buffer layer; the damage of appliances inside the tool box can be avoided; the chemical tool protection box is applicable to the production and use of the chemical tool protection box with the anti-dropping function; good development prospects are realized.

The invention discloses an agricultural transplanter. The transplanter structurally comprises a seedling placing disc, a seedling throwing device, a machine body, a throwing cylinder and a hole opening cone, and is characterized in that the seedling placing disc is fixed on the machine body and is positioned above the seedling throwing device. Compared with the prior art, the transplanter has thebeneficial effects that the new throwing cylinder is formed through combined arrangement of a seedling cylinder, a guiding and throwing cylinder, a guiding channel and a limiting ring, seedlings fallinto the seedling cylinder, the seedling cylinder can ascend and descend, and therefore the seedlings can be conveyed, the falling height of the seedlings and hole grooves is reduced, gravitational potential energy can be reduced, large rigid collision between the seedlings and the hole grooves is avoided, so that the seedlings can stably and vertically fall down and are prevented from being damaged.

The embodiment of the invention discloses printing equipment capable of preventing ink deposition. The printing equipment comprises a main ink box, a second-level ink box, a spray head, an ink inlet pipe, an ink outlet pipe, a liquid level sensor, a control circuit and a circulating pump, the ink inlet pipe is connected with the main ink box and the spray head, the ink outlet pipe is connected with the spray head and the second-level ink box, the input end of the circulating pump is connected with the second-level ink box, the output end of the circulating pump is connected with the main ink box, in the vertical height, the bottom position of the main ink box is higher than the bottom position of the second-level ink box and lower than the top position of the second-level ink box, the liquid level sensor is used for sending a second-level ink box liquid level highest signal to the control circuit when the liquid level of the second-level ink box reaches the liquid level highest point; and the control circuit is used for controlling the circulating pump to start when receiving the highest liquid level signal of the second-level ink box. According to the embodiment of the invention, the ink in the spray head can flow, and the deposition of the ink in the nozzle is reduced.

The invention provides a sponge grinding block production line. The sponge grinding block production line comprises an uncoiling device, a surface treatment device, a sand embedding device, a drying device and a sponge combination device which are sequentially arranged in the thin film operation direction. The invention further provides a sponge grinding block production method. The method adopts the above devices and includes the following steps of uncoiling, surface treatment, static sand embedding, drying and sponge combination. Continuous and automatic machining can be sequentially finished on the same production line, the occupied space is small, a specially-assigned person on duty is not needed in all the processes, therefore, the labor force is saved, the labor intensity is relieved, and the production efficiency is improved; a thin film is subjected to surface treatment through the production method, the surface of the thin film is rough, the adsorption capacity can be improved, and gluing is more uniform; and by means of a metal layer electroplated on the surface of the thin film, the strength of the thin film is improved, gluing and sand embedding are facilitated, and the product quality is further guaranteed.

The invention discloses a biomass gasification grate ash device, comprising a grate, the upper end of the grate is connected with the ash outlet at the bottom end of the gasification furnace, the lower end of the grate is connected with the ash hopper, the lower end of the ash hopper is fixed with a sealed water tank and Connected, the sealed water tank is filled with condensate, the side of the sealed water tank is equipped with a slag collection box, and the slag collection box is equipped with a U-shaped liquid-sealed pipe, and the end of the U-shaped liquid-sealed pipe near the sealed water tank is connected to the sealed water tank. There is a slag pushing mechanism located at the liquid level of the condensate. The slag pushing mechanism is used to push the ash floating on the liquid surface of the condensate into the U-shaped liquid seal tube. It is used to remove the ash and slag in the U-shaped liquid seal pipe to the slag collection box. The biomass gasification furnace grate ash device can remove the ash on the surface of the condensate in time to prevent the ash hopper from being blocked by the ash.

The invention relates to the technical field of elevators, and discloses a magnetic safety assembly for reducing gravitational potential energy during elevator stall falling. The magnetic safety assembly comprises a cable; a cable pipe is fixedly connected to the outer side of the cable; a speed reducing mechanism is movably connected to the outer side of the cable pipe; a gripper is movably connected to the top of the speed reducing mechanism; and a balance layer is fixedly connected to the inner side of the gripper. According to the magnetic safety assembly for reducing the gravitational potential energy during elevator stall falling, induced current is generated and transmitted to an electrode plate through transmission of a circuit, so that a coil on the outer side of the electrode plate is electrified, and when the gripper moves outwards, the speed reducing plate at the bottom of a connecting rod moves in the electrified coil; furthermore, in the moving process, according to the Lenz's law, it can be known that the speed reducing plate can generate the eddy current effect when the coil moves, and movement of the gripper is limited according to the coming and leaving refusing principle, so that the falling potential energy of the cable is consumed, and the elevator stall protection level is improved.

This application relates to a shock-absorbing laying method for pipelines. By setting an inclined storage plate in the body for storage, the single pipeline can slide out from the lower end of the storage plate under the action of its own gravity, and the single pipeline can be removed by the blanking assembly Release one by one from the lower end of the storage board to the inner side of the buffer conveyor belt, and slide the pipeline unit to the lowest point of the buffer conveyor belt to wait for release, which reduces the gravitational potential energy of the pipeline unit, and drives the buffer conveyor belt to rotate through the drive to make the port move. At the lowest point, the pipeline monomer falls from the opening, thereby completing the placement of the pipeline monomer, which is conducive to reducing the work intensity of the construction personnel. Probability of damage to the pipeline monomer.