36results about How to "No harm will happen" patented technology

The invention discloses an active safety head restraint device for an automobile seat, which comprises a head restraint assembly, a linkage assembly and a trigger assembly. The headrest assembly includes the main panel of the headrest, the sub-panel of the headrest, the No. 1 bracket connecting rod, the No. 2 bracket connecting rod, the No. 1 connecting rod sleeve, the No. 2 connecting rod sleeve, the No. 1 fixing groove, and the No. 2 fixing groove , Sleeve connecting plate, No. 2 swing arm, butterfly spring self-locking hinge and No. 1 swing arm. The main panel of the headrest is connected with the sub-panel of the headrest through a butterfly spring self-locking hinge. The upper end of the connecting rod of the No. In the No. connecting rod sleeve, No. 1 fixing groove and No. 2 fixing groove are fixed in the middle. The No. 1 swing arm is fitted with the hook end of the No. 2 swing arm and the No. 1 fixing groove is fitted with the swing arm buckle on the No. 2 fixing groove. The other end is fixedly connected with the sub-panel of the headrest, and the 1 The No. connecting rod sleeve and the No. 2 connecting rod sleeve are vertically installed on the seat back and are slidingly connected.

The invention relates to an outer conductor heating cavity for microwave heating non-combustion equipment. The outer conductor heating cavity and an inner conductor column which is coaxially overlapped with the outer conductor heating cavity form a coaxial heating cavity, a microwave source enters the coaxial heating cavity from one end of the inner conductor column for microwave transmission, and the microwave heating of a smoking substrate is realized; and a microwave heating method adopted by outer conductor heating cavity is coaxial microwave heating, so that electromagnetic waves exist between the outer wall of the inner conductor column and the inner wall of the outer conductor heating cavity, the length of the outer conductor heating cavity is larger than the length of the inner conductor column, and the diameter of the outer conductor heating cavity is much smaller than the cutoff wavelength of each frequency. In the absence of the inner conductor column, the microwave attenuation is severe, it is ensured that that no microwave leakage causes harm to a user.

This invention discloses a lightning current surge testing stand, comprising a cabinet, a through-flow fixture, an oscilloscope and an LER discharging circuit. A main power switch is positioned on the cabinet panel, a single-push button, a constant-impacting button, a time relay, a counting relay, an output terminal, through-flow sampling port, a voltage-limitation sampling port, a digital voltmeter, a manual operation potentiometer knob, a booster knob and a protection switch for a voltage-sensitive through-flow fixture. The LCT discharging circuit electrically connected to electrical members on the cabinet panel is positioned within the cabinet; a piezoresistor to be detected is positioned within the through-flow fixture; the oscilloscope is connected to the through-flow sampling port; the single-push button is pushed and the wave shape is observed; the voltage setting value is adjusted until the 8 / 20 Mu wave shape of the specific peak value is shown on the circuit; the voltage setting value is fixed; the next batch of the piezoresistors are enclosed and the change of the voltage of the piezoresistor after the through-flow test is compared. In this invention the charging and discharging of the capacitor are controlled by the electric circuit, which simplifies the operation, and pushing the button for one time remotely can finish 1-99 times of surge test.

The invention relates to urine storage liquid, a preparation method and a slice making device thereof. The urine storage liquid is prepared from the following ingredients in percentage by mass: 2 to 4percent of sodium citrate, 0.08 to 0.12 percent of sodium chloride, 0.03 to 0.05 percent of potassium chloride, 0.02 to 0.03 percent of calcium chloride, 20 to 30 percent of formaldehyde, 30 to 40 percent of ethyl alcohol, 1 to 2 percent of glacial acetic acid and the balance of distilled water. The invention also provides the preparation method of the urine storage liquid according to the claims. The slice making device of a urine inspection sample comprises a flat bottom tube, a tube cover and cover glass. The cost of the urine storage liquid is low; the preparation method is simple; the popularization and the use are convenient; urine cells can be fast and fixedly stored for a long period; the urine cell form is completely maintained; the urine inspection requirement on the effective cell quantity and quality can be met; the preparation method of the urine storage liquid is simple; no three-waste pollution is generated. The slice making device of the urine inspection sample is simple in structure and convenient to use.

The invention discloses a laryngeal mask capable of dilating and used for endoscope diagnosis and treatment, and relates to the technical field of medical instruments. The laryngeal mask comprises a mask bag and an air passage catheter, the mask bag is fixedly connected to the air passage catheter, the air passage catheter comprises an aerating air passage, an endoscope channel and an air fillingtube channel, an aerating inlet, an endoscope inlet and an air filling tube inlet are located in the end, away from the mask bag, of the air passage catheter, the mask bag comprises a basic body and an air bag connected to the basic body, the air bag surrounds the edge of the basic body in an annular shape, the air filling tube inlet is connected to the air bag, the endoscope outlet is connected to the lower surface of the basic body and points to the front side of the basic body, a dilating opening which extends from the endoscope inlet to an endoscope outlet is formed in the back face of theendoscope channel, and the air bag becomes smaller easily and gradually from the rear side of the basic body to the front side. The laryngeal mask can effectively dilate and deform so that an endoscope can be inserted.

The invention relates to a safe medical mouth gag. The safe medical mouth gag comprises elastic occlusion cavities, a clearer and support tubes, wherein an airtight cavity is formed by the support tubes and the occlusion cavities; a liquid storage device is arranged on one occlusion cavity and filled with mutually insulated to-be-reacted drugs; a drug spraying end of the liquid storage device is communicated with the occlusion cavity; the clearer comprises a cylindrical casing, a one-way bearing is mounted on the casing, an outer wheel of the one-way bearing is exposed out of the casing, and a suction wheel is mounted on an inner wheel of the one-way bearing; an elastic telescopic tube is arranged outside the casing, the wall of the elastic telescopic tube is meshed with the outer wheel of the one-way bearing, two ends of the elastic telescopic tube are fixed on occlusion plates respectively, and the occlusion plates are fixedly connected with the occlusion cavities. The safe medical mouth gag is novel and unique in structure, can keep the mouth of a patient open on the premise that teeth of the patient are protected effectively and can effectively prevent a liquid from entering the respiratory tract, and time is gained for medical rescue.

The invention relates to the technical field of board machining, in particular to a novel material board cutting device with a fixation function. The novel material board cutting device with the fixation function comprises a vertical plate, a supporting plate, a first installing frame, an electric telescopic link a, an electric telescopic link b, a motor, a cutting blade, a fixed plate, a clampingplate, a cushion plate, a second installing frame, a baseplate, a supporting rod and supporting legs, wherein the vertical plate is connected to the first installing frame by the electric telescopiclink a; and the electric telescopic link b is fixedly arranged at the middle of the lower end surface of the first installing frame. The novel material board cutting device with the fixation functioncan fix a new material board very well, reduces the probability that the board slides when the new material board is cut, and ensures the cutting accuracy; and in addition, the novel material board cutting device with the fixation function does not need to be manually operated in a cutting process, avoids the condition that material residues damage people during cutting, has high safety performance and very strong practicability and meanwhile saves labor force.

The invention relates to a production method of a light-emitting suspended ceiling formwork and a light-emitting suspended ceiling formwork. The light-emitting suspended ceiling formwork comprises a decorative panel layer finished, a rectangular light guide plate finished, a covering back [late, an LED light strip and four frames; the length of the light guide plate finished is as large as that ofthe decorative panel layer; the width of the light guide plate finished is 2-5 mm less than that of the decorative panel layer finished; the upper surface of the decorative panel layer finished is pasted to the lower surface of the light guide plate finished, three sides of the decorative panel layer finished are flush with those of the light guide plate finished; a gap formed by the decorative plate layer finished and the light guide plate finished is provided with the LED light strip, and light of the LED light strip string faces the light guide plate finished. The production method and thelight-emitting suspended ceiling formwork have the advantages of energy conservation, low space consumption, good safety and the like.

The invention discloses a miniature automatic wire detaching device for a motor. The device comprises a conveying mechanism, a motor fixing mechanism, a motor cutting mechanism and a winding recovering mechanism. The conveying mechanism comprises a conveying track with gears at an inner circle. Two ends of the conveying mechanism are provided with rotating gears which engage with the conveying track at an inside part. The rotating gears are driven by a driving motor. The conveying track is provided with a plurality of equidistantly arranged motor fixing mechanisms. According to the miniature automatic wire detaching device, the annular conveying track is arranged; and the conveying track is provided with a plurality of motor fixing mechanisms, thereby realizing cycled operation and greatlyimproving operation efficiency. In a motor cutting mechanism of the device, a heating-and-cutting combined method is utilized; high-temperature carbonization is performed on insulating varnish on thesurface of the coil before cutting, thereby preventing adhesion of the insulating varnish on the surface of a cutting plate in cutting, and preventing harm to an operator caused by dust of the insulating varnish.

The invention discloses a live-line insulator W-shaped pin electric pin remover, belonging to the power maintenance tool technology field and solving the problem that the prior art removes the pin through manual operation like beating up the W-shaped pin, which can mistakenly damage the insulator and is not easy to operate. The live-line insulator W-shaped pin electric pin remover comprises an upper clamping sheet and a lower clamping sheet; the upper sheet and the lower sheet are hinged together through a rotation shaft; the rotation shaft is provided with a spring; the upper sheet comprises an upper clamping head and an upper clamping handle; the lower clamping sheet comprises a lower clamping head and a lower clamping handle; the lower clamping handle is connected to a top of an insulation operation rod through a connection rod; the live-line insulator W-shaped pin electric pin remover also comprises an electric driving device comprising a motor, a screw rod connected to the output terminal of the motor and a nut sleeving the screw rod; the end of the lower clamping handle is fixed through a fixing block on the outer wall of the motor; and the end of the upper clamping handle is fixed on the nut.

A method for lighting of trees and remodeling a lichee complete stand is characterized in that the height of a tree body is controlled within 3m to 4m, the quantity of big branches of the whole tree is controlled within 6 to 8, the angle of the big branches is kept within 60 to 90 degrees, the inner chamber is ventilative and non-light tight, and the tress of the inner chamber can fruit normally. The method of the invention has the outstanding advantages that the ventilative and non-light tight condition of the tree body is improved, so that the inner chamber fruits, thereby increasing the output muitiply. In addition, because the tree is high, reducing the big branches can obviously reduce the spray value, the utilization rate of fertilizer is improved, the harvest is easy, and the condition that the person is hurt for picking up the fruits cannot happen again.

The invention belongs to the field of sports equipment, and in particular relates to a floating type entertainment hurdle frame. A gas inflating ball opening (7) is arranged at the right end of a soft hurdle-top cross rubber (5); hydrogen (6) is inflated into a hollow sealed capsule in the soft hurdle-top cross rubber (5) through the gas inflating ball opening (7); two soft rubber hangers (4) arebonded on the inner sides of both ends of the soft hurdle-top cross rubber (5); the lower end of each hanger (4) is connected with the upper end of an elastic rubber belt (3); and the lower ends of the elastic rubber belts (3) are respectively connected with a weight device. The equipment is suitable for common entertainment hurdles in irregular competition by users without wearing nail shoes, and is particularly suitable for juvenile and children; the safety performance of the entertainment hurdle frame is obvious; and the automatic floating function of the soft hurdle-top cross rubber (5) is favorable for solving the problem of wasting time and labor in the process of repeatedly strengthening the hurdle frame in the past.

The invention discloses an electric automobile and an operating method thereof, relates to a technically improved electric automobile capable of saving the energy and increasing the braking efficiency, and provides an electric automobile and an operating method thereof, and the electric automobile can reduce the kinetic energy during vehicle brake so as to improve the vehicle braking efficiency, and can improve the comprehensive safety performance and energy-saving performance of vehicles. The electric automobile comprises a chassis, a brake pedal, a storage battery, a driving motor, a gearbox, a driving wheel, a driving shaft and a front bumper and also comprises a stored energy assistance device, wherein the stored energy assistance device comprises an energy accumulator, an inflating device, a charging device and a controller; the energy accumulator comprises a shell and an airbag; the airbag is arranged in the shell; the shell is fixedly connected to the inner surface of the front bumper; and an air inlet, an air outlet and a safety air valve port are formed in the airbag. The airbag is arranged in a non-sealed rigid shell to form the energy accumulator, and even if the airbag is burst, the phenomenon that people are injured under the limitation of the shell is avoided.

The invention relates to a toilet-bowl armchair, which comprises chair feet, a chair seat, a chair-seat bracket and a chair-seat cover, wherein the chair feet comprise two first chair feet and two second chair feet, the two first chair feet and the two second chair feet are all connected with the chair-seat bracket, the tops of the two second chair feet are respectively connected with an armrest, the two armrests are respectively connected with the tops of the two first chair feet, the chair seat is connected to the top of the chair-seat bracket, a toilet through hole is formed in the middle of the chair seat, the chair-seat cover is positioned above the chair seat, and one end of the chair-seat cover is hinged to the chair-seat bracket. The toilet-bowl armchair disclosed by the invention has the advantage that users, such as the elderly, who are unable to move freely can more safely and more conveniently go to the toilet.

The invention relates to self-adaptive intelligent physical exercise equipment and a use method thereof. A fixed casing with a middle displacement groove is arranged at the outer part of a weight bearing block; the inner side of a lifting connecting block is movably arranged in the middle displacement groove; a weight bearing block bearing plate is fixedly arranged in a position near the lower side of the middle of the fixed casing; the weight bearing block is movably arranged on the weight bearing block bearing plate; a weight bearing block moving cavity is arranged at the upper side inside the fixed casing; an electric device installing cavity is arranged in the fixed casing arranged at the lower part of the weight bearing block bearing plate; a control mainboard is arranged in the electric device installing cavity; the control mainboard is connected with a display arranged at the outer wall of the fixed casing through a conducting wire; a self-adaptive regulating device connected with the control mainboard is arranged on the lifting connecting block. The load is automatically regulated; the exercise effect is obvious; the defect that the exercise effect caused by too heavy loador too relaxed exercise is not obvious is avoided; a user can perform the reasonable body protection according to the exercise information prompt.

The invention discloses an escaping window of a vehicle. The escaping window disclosed by the invention comprises a window frame and glass, wherein the glass is fixed on the window frame through a bonding layer; a fixing plate is arranged on the inner side of the window frame and forms an internal corner; and one side of the bonding layer is connected with the fixing plate, and the other side of the bonding layer is connected with the glass. The escaping window also comprises steel wires which are used for cutting the bonding layer into two parts, so that the glass is separated from the fixing plate; through holes allowing the end parts of the steel wires to penetrate through are formed in the bonding layer; and the steel wires are arranged around the bonding layer for a circle to form a ring, and two ends of each of the steel wires penetrate through the corresponding through hole. According to the escaping window disclosed by the invention, through pulling the steel wires, the bonding layer can be cracked under the acting force of the steel wires, so that the glass can be easily separated from the window frame; in the separating process, the glass is free from being broken, and an escaping opening can be maximized, besides, the situation that glass minces are left on the window frame of the escaping opening and hurt staff is avoided.

The invention relates to a cutter, in particular to a cutter for dividing cakes. The cutter comprises a handle, an isolating sheet installed below the handle and an iron wire installed at the lower portion of the isolating sheet; and the iron wire is bent to be arranged in parallel, and at least two gaps are defined by the iron wire. By means of the cutter, the cakes can be cut relatively conveniently, the cutter is simple in structure and convenient to operate, sharp blades are avoided, and people are prevented from being injured. By means of the cutter, the cakes can be cut at a time, and the problem that when a traditional cutter is used for cutting, the cut cakes cannot be conveniently moved out due to stickness of the cakes is solved.

The invention discloses an intelligent control flexible rack. The intelligent control flexible rack comprises a base, wherein a support and a workpiece support are arranged on the base; the support isconnected with a cross beam through a rotating shaft, and a balance device is arranged at one end of the cross beam, and an operation mechanism is arranged at the other end of the cross beam; the balance device comprises tension springs, one ends of the tension springs are fixed on the cross beam, the other ends of the tension springs are connected with piston rings, and the piston rings are in sliding connection with a strip-shaped groove in a driving arm through pull rods; the end part of the driving arm is fixed to a driving wheel, and the driving wheel is meshed with a motor output wheel;the driving wheel and a motor are arranged on the support; an encoder is fixed on the driving wheel; and a motor controller is connected with a PLC, and the encoder is connected with the PLC. The intelligent control flexible rack has the advantages that the operation structure is a motor-driven tension adjusting structure, the PLC judges the rotation angle of the driving wheel according to signals transmitted by the encoder, and then the tension of the spring is calculated and proportioned to the gravity on the right side so as to realize the adjustment of the downward pressure on the right side.

The invention aims to provide a high-safety structural performance tester specific to poor safety performance of the conventional tester. The structural performance tester comprises a tester base, wherein the center of the tester base is fixedly connected with a safety cylinder; the safety cylinder is vertically and fixedly connected with the base; the safety cylinder is connected with a bearing plate in a sliding manner; a through hole is formed in the center of the bearing plate; the safety cylinder passes through the bearing plate through the through hole in the center of the bearing plate; a safety support is arranged on each corner of the upper surface of the tester base; each safety support is equal in height; a safety protection cover is arranged outside among each safety support. By adopting the tester with the structure, a portion of parts of the tester are not damaged even the bearing capability of the tester is insufficient. Moreover, the safety protection cover is arranged outside among the safety supports, thereby preventing scraps produced after the tester is broken by pressing from leaking out, lowering pollution to the surrounding environment, bringing convenience to cleaning, preventing the situation of hurt to people, and achieving high safety performance.

The invention belongs to the field of sports equipment, and in particular relates to a floating type entertainment hurdle frame. A gas inflating ball opening (7) is arranged at the right end of a soft hurdle-top cross rubber (5); hydrogen (6) is inflated into a hollow sealed capsule in the soft hurdle-top cross rubber (5) through the gas inflating ball opening (7); two soft rubber hangers (4) are bonded on the inner sides of both ends of the soft hurdle-top cross rubber (5); the lower end of each hanger (4) is connected with the upper end of an elastic rubber belt (3); and the lower ends of the elastic rubber belts (3) are respectively connected with a weight device. The equipment is suitable for common entertainment hurdles in irregular competition by users without wearing nail shoes, and is particularly suitable for juvenile and children; the safety performance of the entertainment hurdle frame is obvious; and the automatic floating function of the soft hurdle-top cross rubber (5) is favorable for solving the problem of wasting time and labor in the process of repeatedly strengthening the hurdle frame in the past.

A drilling tool with a slow starting circuit comprises a rectifying circuit, a positive voltage input end, a negative voltage input end, a single-pole double-throw switch, a selection unit, a motor, a drill bit and a control unit. The first end of the single-pole double-throw switch is connected with the positive voltage input end, the second end of the single-pole double-throw switch is connected with the negative voltage input end, and a common end of the single-pole double-throw switch is connected with the selection unit. The control unit is further connected with the positive voltage input end and used for detecting the polarity of the voltage output from the single-pole double-throw switch and sending out a delay control signal to the selection unit. The selection unit is connected with the motor, and the motor is connected with the drill bit. The selection unit is used for controlling the motor to rotate forwards and reversely according to the delay control signal so as to drive the drill bit to be lifted up or pressed down. The drilling tool with the slow starting circuit has the beneficial effects that the drill bit will make a response after a period of delay after the switch is pressed down, a worker then makes a response, the condition that the worker is hurt by a machine is avoided, and the safety of the worker is guaranteed.

The invention discloses a disinfection product harmless to skin. The disinfection product is prepared from the following components in parts by weight: 20 to 26 parts of bleaching powder extraction, 15 to 21 parts of sodium hypochlorite, 2 to 7 parts of hydrofluoric acid, 1 to 6 parts of phosphoric acid, 14 to 20 parts of iron sulfate, 5 to 10 parts of sodium nitrate, and 60 to 70 parts of water, wherein the mass content of active chlorine of the bleaching powder extraction is 85 to 90 percent, and the mass content of the active chlorine of the sodium hypochlorite is 8 to 14 percent. By virtue of the way, the disinfection product harmless to skin can be touched by hands or the skin of other parts of the body, no harm is caused to the skin, the skin is not dry after using the disinfection product, no disease of the skin is caused, and the disinfection product is easy toily accepted by consumers.

The invention discloses a double-station drilling tooling with a soft start circuit. The double-station drilling tooling comprises a rectifying circuit, a positive voltage input end, a negative voltage input end, a single-pole double-throw switch, a selector unit, a first motor, a second motor, a first drill bit, a second drill bit and a control unit, wherein the control unit is used for detecting the voltage direction output by the single-pole double-throw switch to send a delay control signal to the selector unit; and the selector unit is used for correspondingly controlling the second motor and the first motor to forwards and reversely rotate according to the delay control signal, so that the first drill bit and the second drill bit are driven to move. The double-station drilling tooling with a soft start circuit has the beneficial effects that the drill bits can delay for a period of time to react after the switch is pressed, a worker has reaction time, the condition that the worker is injured by a machine cannot occur, and the safety of the worker is ensured; the single switch is used for controlling the two drill bits simultaneously, the working procedure is simple, and the work efficiency is improved.

The invention relates to a novel efficient cleaning agent for cleaning a 3D molding sand printing head and a preparing method of the novel efficient cleaning agent.The cleaning agent is prepared from, by weight, 16-30% of isopropyl alcohol, 17-35% of methyl alcohol, 11-21% of ethyl alcohol, 13-23% of acetone, 8-16% of aviation kerosene and 2-8% of polyacrylic ester.The cleaning agent prepared through the method is low in viscosity, high in solubility, stable in performance and low in boiling point, does not react with resin chemically or cause harm to the human body or pollute the environment or cause swelling and corrosion damage to a circuit board in the printing head, prolongs the service life of the printing head, reduces the use cost of a 3D printer, and lays a foundation for further development of the 3D printing technology in the casting industry.

The veterinary oral cavity dilator comprises a frame body, the frame body comprises a first supporting rod and a second supporting rod, sliding grooves are oppositely formed in the inner side of the first supporting rod and the inner side of the second supporting rod, and an upper sliding plate and a lower sliding plate which can slide are arranged in the sliding grooves; a first fixing plate is arranged on the upper sliding plate, a second fixing plate is arranged on the lower sliding plate, threaded holes are formed in the first fixing plate and the second fixing plate, threaded rods are in threaded connection in the threaded holes, first external threads are arranged on the upper portions of the threaded rods, and second external threads are arranged on the lower portions of the threaded rods; the spiral direction of the second external thread is opposite to that of the first external thread; an upper arc-shaped barrel is fixed on the back surface of the upper sliding plate, and a lower arc-shaped barrel is fixed on the back surface of the lower sliding plate; an upper rubber belt is inserted into the upper arc-shaped barrel, and a lower rubber belt is inserted into the lower arc-shaped barrel. The device has the advantages that the device can be conveniently inserted into the oral cavity of livestock and is not easy to fall off in the use process.

The invention provides an automatic door. The automatic door comprises a door frame, a door fan movably connected with the door frame, and a driving unit for driving the door fan to move, and further comprises a light-emitting unit, a sensing unit and a control unit, wherein the light-emitting unit emits visible light; the light emitted by the light-emitting unit faces to a direction entering the automatic door and forms an included angle of 30-90 degrees with the horizontal direction; the sensing unit receives the light emitted by the light-emitting unit and sends out a signal; and the control unit controls the driving unit to drive the door fan to move according to the signal sent out by the sensing unit. The automatic door works in a way of sensing the visible light, the automatic door can be opened when the visible light enters the sensing range of the automatic door, and the automatic door is not closed within the sensing range, so that injury caused by mistaken closing is avoided; the used visible light is clean energy, so that no damage is caused; and the visible light can supply lighting, so that the utilization rate of resource is improved.

The invention discloses a pneumatic fixed-wing aircraft, which is called a fixed-wing helicopter for short, and belongs to a basic invention of an aircraft structure. The mechanical structures, the sizes and the overall layout of the aircraft body, the control system and the power device are basically the same as those of a traditional fixed-wing aircraft. An autonomous jet wing and a mature large-duct turbofan engine technology are adopted, the autonomous jet wing and the mature large-duct turbofan engine technology are correspondingly communicated through a pipeline and a butt joint device, air is sucked in from an air inlet in the front end of the wing or the front end of a fuselage and sprayed out backwards at a high speed along the surface of the wing from an exhaust port in the upper portion of the front end of the wing, and the lift force and thrust of the aircraft are autonomously controlled. An abnormally complex and sensitive mechanical device of a traditional helicopter is abandoned, the difficulty and danger in the take-off and landing process of a traditional fixed-wing aircraft are overcome, and the aircraft is particularly suitable for being used in a wing-body-fused stealth aircraft. Even if an engine flames out, the helicopter can land in a gliding mode, and the helicopter is particularly safe to land in a gliding mode. The LED lamp is suitable for being used in various harsh environments and meets the requirement for multiple purposes.

The invention relates to a seed coating agent for chemical weeding in sorghum fields and a herbicidal method. The sorghum seeds are coated according to a certain dose of fluorinated fluorine and other synergistic components, which are absorbed into the body during the germination process of the seeds, and can accelerate the metabolism of the seeds in the body Metolachlor, removes the harm of metolachlor to sorghum seedlings, and makes the seedlings grow normally; while the annual grass weeds and some broad-leaved weeds in the soil, such as goosegrass, crabgrass, daughter, Setaria, amaranth, purslane, etc., absorb metolachlor when they germinate, inhibit the synthesis of weed protein and die. The weeding method is economical, efficient, safe for sorghum growth, and has the effect of strengthening seedlings.