38results about How to "Meet the carrying capacity" patented technology

A paired counterweights of a crankshaft have projected inner surfaces which protrude toward each other defining a given space therebetween. A plurality of links are arranged to convert a reciprocating motion of a piston to a rotational motion of the crankshaft. One of the links is pivotally connected to other links through link connecting portions and swingably disposed on a crank pin of the crankshaft so that upon rotation of the crankshaft, a peripheral portion of the link passes through the given space. At least one of the link connecting portions is placed within an imaginary circle which would be described by a radially innermost part of the projected inner surfaces of the paired counterweights when the paired counterweights turn about an axis of the crank pin.

The invention discloses a concave elastic screen wheel which comprises a hub and a supporting ring arranged on the hub. An annular metal wire mesh is arranged at the outer periphery of the supporting ring, an elastic element for supporting the metal wire mesh is positioned between the supporting ring and the metal wire mesh, an antiskid pawl is positioned at the outer periphery of the metal wire mesh, the metal wire mesh and the antiskid pawl are fixedly connected to form an arch concave elastic screen serving as a tire face, and the tire face is an arch concave face with the concave middle and the two convex sides. The concave elastic screen wheel can carry people to walk in soft, dusty, dry and low-gravity environments, can meet the requirements of high roll stability, high adhesion force and good shock absorption performance, can effectively prevent settlement and can effectively restrain raised dust.

The invention relates to a reinforcing structure for a rear opening in a shear wall and a construction method of the reinforcing structure. The reinforcing structure comprises an original wall, a floor slab and a structural steel frame for reinforcing, wherein the structural steel frame comprises steel angles and flat steel and covers the edge of the rear opening, and the steel angles and the flat steel are fixed at the rear opening through anchor bolts and high-strength plate bolts; and the steel angles are arranged on two sides of the wall, the vertical and horizontal junction position of the steel angles is welded and outwards extends along the opening, vertical legs are cut off from the extending part, the steel angles on two sides are connected through batten plates, the batten plates and the steel angles are in groove welding, the contact positions of the bottoms of the steel angles and the floor slab adopt flat groove welding through local cut steel angle lacing bars and the steel angles on two sides, and the flat steel is arranged on the floor slab on two sides of the wall. Cut-off reinforcing steel bars in the original wall are reinforced with plug welding matched with the structural steel frame after the ends of the reinforcing steel bars are reserved, anchoring steel angles are added between the bottom of the floor slab and the lower wall, two legs attached to the wall surface are connected by high-strength bolts and connected with the floor slab and the flat steel through the high-strength plate bolts.

The invention discloses a low-floor tramcar floating car end beam and lower part hinged mounting base structure. The low-floor tramcar floating car end beam and lower part hinged mounting base structure comprises an end beam and a hinged mounted base arranged at the center of the back end of the end beam; two bilaterally symmetrical workshop damping mounting bases are arranged on the end beam; bilaterally symmetrical rotary stops are arranged on the two sides of the hinged mounting base; the end beam is formed by welding a main sectional material and a secondary sectional material front and back; the main sectional material and the secondary sectional material have hollow structures; rib plates capable of improving rigidity and strength are arranged in the main sectional material and the secondary sectional material; the internal part of the hinged mounting base is trapezoidal hollow; and the trapezoidal hollow internal part is provided with a reinforcing rib. The low-floor tramcar floating car end beam and lower part hinged mounting base structure is high in strength performance, simple in structure, convenient to manufacture and maintain and low in cost, and guarantees the lightweight design of the structure on the premise of meeting the bearing capacity; and through the arrangement form of the unique end beam, the hinged mounting base, the rotary stops and the workshop damping mounting bases, the requirement on vehicle operating stability and comfortability is met.

The invention discloses an overweight vehicle arresting system and method, and the system comprises a weighing subsystem, an arresting subsystem, an alarm device, an image collection device, and a data processing and control device, and the weighing subsystem is used for weighing a vehicle; in the vehicle passing direction, the arresting subsystem is located in the downstream of the weighing subsystem; the shooting angle of the image collection device faces an area between the arresting subsystem and the weighing subsystem; the data processing and control device is connected with the weighingsubsystem, the arresting subsystem, the alarm device and the image acquisition device and used for controlling the alarm device to give an alarm, controlling the arresting subsystem to be started andjudging whether the overweight vehicle is driven into a turn-around area or not according to the shot images when the passing vehicle is overweight, and if yes, alarm and arresting are relieved. The system can automatically detect, warn and intercept overweight vehicles, maintain the passing order of bridges and roads, and guarantee the safety of bridges, roads, passing vehicles and pedestrians.

The embodiment of the invention discloses a human-machine cooperation wall building robot. The human-machine cooperation wall building robot comprises a moving chassis, a supporting stand column, a power-assisted mechanism and a clamp holder; the supporting stand column is fixed to the moving chassis, the power-assisted mechanism is fixed to the supporting stand column, and the clamp holder is fixed to the power-assisted mechanism; and the power-assisted device comprises a lifter and a support arm, the extending direction of the support arm is perpendicular to the supporting stand column, a first positioning structure is arranged at the tail end, far away from the supporting stand column, of the support arm, the lifter comprises a power unit and a rope fixed to the power unit, and the ropestretches in the direction of the support arm and penetrates through the first positioning structure to fix the holder. The human-machine cooperation robot provided by the invention has a simple structure and can fully meet the bearing capacity of floors, and the brick clamping process is finished by the clamp holder, such that the technical problem of high labor intensity of manually carrying building blocks is solved. The invention further relates to a human-machine cooperation wall building robot system.

A paired counterweights of a crankshaft have projected inner surfaces which protrude toward each other defining a given space therebetween. A plurality of links are arranged to convert a reciprocating motion of a piston to a rotational motion of the crankshaft. One of the links is pivotally connected to other links through link connecting portions and swingably disposed on a crank pin of the crankshaft so that upon rotation of the crankshaft, a peripheral portion of the link passes through the given space. At least one of the link connecting portions is placed within an imaginary circle which would be described by a radially innermost part of the projected inner surfaces of the paired counterweights when the paired counterweights turn about an axis of the crank pin.

The invention relates to the technical field of tactical missile shell section structures, in particular to a stringer housing which comprises a housing and a stringer, wherein the housing is rotary and comprises a covering skin and end frames located at both ends of the covering skin and integrally formed together with the covering skin; the stringer is connected with an inner wall of the housing in an axial direction of the housing. The housing of the invention is a rotary structure; the end frames and the covering skin form an integrated structure which has no projecting structure, can be completed by lathing, greatly shortens the processing cycle, and greatly improves the processing efficiency; positions of an upper end frame and a lower end frame are designed according to the size of an interface; the positions of the end frame and the covering skin adopt smooth transition, can be completed by lathing, greatly improve the processing efficiency, and reduce stress concentration. The stringer housing provided by the invention reduces the assembling difficulty and strength, effectively improves the assembling efficiency, also effectively reduces the weight of the missile structure, and improves the missile performance; the housing has high form-position tolerance grade, ensures aerodynamic shape of the missile, has attractive appearance, has no obvious splicing joints, and reduces the probability of appearance of rework events caused by appearance defects.

The invention discloses a vibration isolator. The vibration isolator comprises a base, a sealing cover, a mandrel, a cylindrical spring, a first metal wire net pad and a second metal wire net pad, wherein the sealing cover covers the base to form a cavity; the mandrel is arranged in the cavity for dividing the cavity into a first cavity body and a second cavity body; the first metal wire net pad sleeves the mandrel, and is arranged in the first cavity body; the second metal wire net pad sleeves the mandrel, and is arranged in the second cavitybody; the cylindrical spring sleeves the second metal wire net pad, and is arranged in the first cavitybody; one end of the cylindrical spring butts against the sealing cover, and the other end butts against the base; and the end, far awayfrom the base, of the mandrel is used for being connected with vibration isolated equipment. The vibration isolator forms an elastic buffer vibration isolation structure through a mode of combining the cylindrical springwith the first metal wire net pad and the second metal wire net pad, so that the needed bearing capacity is achieved, and the low-frequency damping purpose can be achieved.

The invention provides a folding-type airport emergency repair and construction composite combination way panel and a manufacturing method thereof. The composite combination way panel is composed of asingle board and a connecting cloth. The veneer is a rectangular plate, which is laid side by side on the upper and lower surfaces of the connecting cloth, and the veneers on the upper and lower surfaces are symmetrically arranged; The veneer and the connecting cloth are bonded together by epoxy resin; Each veneer is made of composite fiber material, glass fiber cloth, ultra-high molecular weightpolyethylene fiber cloth and carbon fiber cloth. The composite pavement slab is light in material, the density is only 1.15-1.17, and the density is less than one sixth of ordinary steel plate. The bending strength of the panel is higher than 280MPa and the impact toughness is higher than 240K j / m2. The strength of the panel can satisfy the bearing capacity of the third generation fighter and allkinds of armed helicopters. The panel has the advantages of high bending strength, strong impact toughness, light material quality, large area, good anti-aging durability, simple and convenient repair pavement, time-saving and high efficiency of emergency repair, and can be used repeatedly.

The invention provides a special roller conveyor for long-material goods, which consists of a frame, a motor, a motor transmission device, a roller and a roller transmission device, and a roller shaft is installed on the frame, and the roller shaft Both ends of the roller are provided with internal threads, which are respectively connected to the frame through bolts; the roller shaft is equipped with a bearing, and the bearing is wrapped with a roller; the transmission device drives the roller through the sprocket arranged on the roller; It also includes a steel platform fixed on the roller conveyor and a pallet of goods placed on the rollers of the roller conveyor. In the special roller conveyor for long-material goods of the present invention, a steel platform and a cargo pallet are added to the roller conveyor, so that the hand-push hydraulic vehicle can directly pick up the goods on the conveyor, that is, the set cargo pallet cooperates with the steel platform, and the hand-push The hydraulic truck can directly take out the cargo pallet from the conveyor, without the need for various power forklifts and professional forklift drivers, which improves production efficiency and reduces labor costs.

The invention discloses a multi-degree-of-freedom light single-leg mechanism. The multi-degree-of-freedom light single-leg mechanism comprises a hip joint module, a knee joint module, an ankle joint module, a shin joint and a foot end; the hip joint module, the knee joint module, the ankle joint module, the shin joint and the foot end are connected in sequence; the whole single-leg design mode disclosed by the invention greatly improves the adaptability of the robot legs to complex terrains, improves the dynamic and static stability of a robot, and also improves the integral bearing capacity and control precision of the robot; the single leg with multiple degrees of freedom has flexible movement and light weight; the installation position of a driving motor is closer to the body, so that the problem of high rotational inertia easily generated by a tail end joint is solved, and the movement of the driving mechanism is facilitated; and the single leg has a large movement working space range in the aspects of mechanism movement and power.

The invention discloses a novel low-noise low-vibration permanent magnet motor stator rotor punching sheet. The novel low-noise low-vibration permanent magnet motor stator rotor punching sheet comprises a stator punching sheet and a thin-wall rotor punching sheet; the stator punching sheet comprises a stator yoke part with stator yoke part magnetic density of not greater than 1T and a trapezoid tooth part with the tooth part magnetic density of not greater than 1.5T, wherein the ratio of the tooth part magnetic density to the stator yoke part magnetic density is 1.5-1.6; the trapezoid tooth part is formed by inward extension from the inner side circumferential part of the stator yoke part in a radial direction; the trapezoid tooth part comprises short edges and long edges, the short edgesare positioned on the stator yoke part and the long edges are close to groove shoulders; the ratio of the long edges to the short edges is a, wherein a is greater than or equal to 1.06; and the thin-wall rotor punching sheet comprises a rotor yoke part with the rotor yoke part magnetic density of not greater than 1.2T, wherein the ratio of the tooth part magnetic density to the rotor yoke magneticdensity is 1.25-1.35. By virtue of the stator rotor punching sheet disclosed in the invention, magnetic resistance and transverse force displacement on a fastened and electrified conductor can be lowered, so that vibration and noise can be lowered; noise generated by power frequency current frequency and electromagnetic frequency resonance can be eliminated, so that vibration can be reduced; andan effective air-gap magnetic field can be smooth, so that cogging torque is lowered.

The invention relates to the technical field of tactical missile shell section structures, in particular to a stringer housing which comprises a housing and a stringer, wherein the housing is rotary and comprises a covering skin and end frames located at both ends of the covering skin and integrally formed together with the covering skin; the stringer is connected with an inner wall of the housing in an axial direction of the housing. The housing of the invention is a rotary structure; the end frames and the covering skin form an integrated structure which has no projecting structure, can be completed by lathing, greatly shortens the processing cycle, and greatly improves the processing efficiency; positions of an upper end frame and a lower end frame are designed according to the size of an interface; the positions of the end frame and the covering skin adopt smooth transition, can be completed by lathing, greatly improve the processing efficiency, and reduce stress concentration. The stringer housing provided by the invention reduces the assembling difficulty and strength, effectively improves the assembling efficiency, also effectively reduces the weight of the missile structure, and improves the missile performance; the housing has high form-position tolerance grade, ensures aerodynamic shape of the missile, has attractive appearance, has no obvious splicing joints, and reduces the probability of appearance of rework events caused by appearance defects.

The invention relates to an efficient hematopoietic stem cell culture kit which comprises a bearing box, a sealing cover, a bearing inner cover, a bearing frame, a culture dish, a metering pump, flowguide pipes, a flow distributing pipe, a temperature adjusting device and a control circuit. The bearing box is hinged to the sealing cover each other, the bearing inner cover is embedded into the upper end surface of the bearing box, the bearing frame is embedded into the bearing box, the culture dish is embedded into the bearing frame, the metering pump is mounted on the upper surface of the bearing inner cover, the tail end of the metering pump is communicated with the front end of the flow distributing pipe each other through a control valve, the front end of the flow distributing pipe iscommunicated with the tail end of at least one flow guide pipe through a control valve, and the control circuit is embedded into the outer side surface of the bearing box. According to the kit, on onehand, adjusting flexibility of hematopoietic stem cell culture environments and running stability can be effectively improved, on the other hand, reagent adding flexibility and reagent adding controlaccuracy can be effectively improved in the culture process of hematopoietic stem cells, easily caused unstable culture temperature and pollution of the reagent caused by outside environments can beeffectively avoided when the reagent is added.

The invention discloses a fast target positioning method based on ground object coordinate information, which determines the attitude deviation of the satellite according to the position information of the reference point and the orbit information of the satellite; and determines the attitude information of the satellite based on the attitude deviation Perform deviation compensation; determine the position information of the target point according to the compensated attitude information. The invention also discloses a device for quickly locating a target based on ground object coordinate information, a satellite carrying device and a storage medium.

The invention discloses a polyethylene insulation fireproof computer cable, and relates to the technical field of cables. The polyethylene insulation fireproof computer cable is characterized in that:a tinned soft copper conductor is sleeved with a double-layer synthetic mica fireproof layer, the double-layer synthetic mica fireproof layer is sleeved with a silicone rubber insulation sleeve, andthe silicone rubber insulation sleeve is sleeved with braided glass fiber yarns. The two integral parts composed of the tin-plated soft copper conductors, the double-layer synthetic mica fireproof layers, the silicone rubber insulation layers and the braided glass fiber yarns are arranged in a metal / fiber composite braided sub-shield, so that the problems of poor fire resistance, poor high temperature resistance, poor interference resistance, poor accuracy and poor stability of signal transmission, poor pulling resistance, poor bending flexibility and influence on use requirements are solved,the polyethylene insulation fireproof computer cable has good fireproof, high-temperature-resistant and anti-interference performances, can guarantee the accuracy and stability of signal transmission,also has higher tensile and dragging resistance and bending flexibility, and can meet the requirements of laying installation, bearing capability, fireproof performance and signal transmission of various cables.

The invention provides a double-fixed type heavy balance shaft assembly, comprising supports which are symmetrically arranged, wherein a semi-shaft passes through a support and is provided with a bearing hub, the symmetrical supports are connected into a whole through a connecting plate below the supports and are fixed through bolts, a groove is longitudinally formed below each support, a lug boss, corresponding to each groove, is arranged on the connecting plate, and the groove and the lug boss are in interference fit and are finally fixed and compressed through bolts. According to the invention, because the longitudinal grooves below the supports and the corresponding lug bosses on the connecting plate are longitudinally arranged, the displacement of the connecting plate is prevented, and the breakage of the bolts is further prevented; by virtue of the limiting and fixing effects of the grooves and the lug bosses as well as the fixing and compressing effects of the bolts, a double-fixed type structure is formed, thereby meeting the carrying capacity and ensuring the reliable stability; and meanwhile, the grooves and the lug bosses are in interference fit to play a positioning role and are formed into an organic whole through interference fit, thereby meeting the performance and also facilitating installation.

The invention provides a pantograph slide plate with a conductive fiber bundle structure, the pantograph slide plate comprises a slide plate base body and a conductive fiber bundle arranged on the slide plate base body, the conductive fiber bundle comprises a metal cylinder and a carbon fiber bundle fixed in the metal cylinder, the outer wall of the metal cylinder is provided with an external thread, and the plate surface of the slide plate base body is provided with a plurality of screw holes. The screw holes are through holes, internal threads of the screw holes are matched with external threads of the metal cylinder, a plurality of cleaning holes are further formed in the plate surface of the sliding plate base body, the cleaning holes are communicated with cleaning hole channels formed in the plate, and the cleaning hole channels are connected with an air supply port in the plate surface of the sliding plate base body. By adjusting the height of the conductive fiber, the contact surface of the conductive fiber at the seriously worn position is recovered to be in a flat state, and meanwhile, abrasive dust and dust in gaps of fiber bundles can be conveniently cleaned.

The invention relates to a detachable multi-pot type pitaya pot holder and a pitaya cultivation method. The pot holder comprises a pot seat frame, a column and a support rod. The pot seat frame includes a top ring, a bottom ring, a vertical column, a support foot and an angle bar. and the seat frame nut, the column is arranged between the top ring and the bottom ring, the first end of the column is provided with a supporting foot, the second end is provided with an angle rod, the seat frame nut is arranged at the second end of the angle rod; the column is arranged on the basin seat frame Inside, a first link is arranged in the middle of the column, a third link is arranged at the second end, a second link is arranged between the first link and the third link, and both ends of the first link are connected to the second link. A column nut is arranged in the center; and the support rod includes a long support rod and a short support rod, the long support rod is respectively connected to the column nut and the seat frame nut in the center of the second connecting rod, and the short support rod is respectively connected to the two ends of the first connecting rod. Seat nut. The invention is not only practical and beautiful, but also can be disassembled and installed freely, and effectively solves the technical problem of the greenhouse potted frame structure of dragon fruit grown in the south and the north.

The invention discloses a vibration isolator. The vibration isolator comprises a base, a sealing cover, a mandrel, a cylindrical spring, a first metal wire net pad and a second metal wire net pad, wherein the sealing cover covers the base to form a cavity; the mandrel is arranged in the cavity for dividing the cavity into a first cavity body and a second cavity body; the first metal wire net pad sleeves the mandrel, and is arranged in the first cavity body; the second metal wire net pad sleeves the mandrel, and is arranged in the second cavitybody; the cylindrical spring sleeves the second metal wire net pad, and is arranged in the first cavitybody; one end of the cylindrical spring butts against the sealing cover, and the other end butts against the base; and the end, far awayfrom the base, of the mandrel is used for being connected with vibration isolated equipment. The vibration isolator forms an elastic buffer vibration isolation structure through a mode of combining the cylindrical springwith the first metal wire net pad and the second metal wire net pad, so that the needed bearing capacity is achieved, and the low-frequency damping purpose can be achieved.

The invention discloses a reinforcing structure of an existing structural beam. The reinforcing structure of the existing structural beam comprises the structural beam. Two ends of the structural beam are respectively connected with a structure column, an outer wrapping steel sleeve is arranged on the structural beam, multiple reinforcing ribs are arranged between the bottom of the structural beam and the outer wrapping steel sleeve, and the end portions of the reinforcing ribs are embedded in the structure columns. Two sides of the outer wrapping steel sleeve are provided with grouting tunnels, and angle steels are symmetrically arranged on the two sides of the outer wrapping steel sleeve and the beam plate junction. The vertical portions of the angle steels are connected with the structural beam through anchor bolts, and the horizontal portions are provided with high-strength bolts which penetrate through the beam plate. A connecting hoop plate is arranged between the tops of every two high-strength bolts which are located on the same plane, and the position, corresponds to the structural beam, between each connecting plate and the beam plate is provided with a hogging moment steel plate. Due to the fact that the existing structural beam increases the section and is provided with the outer wrapping steel sleeve, the anti-bending and anti-shearing capability of the existing structural beam is greatly improved, the bearing capability for the integrated extra-large load of the applied local portion is satisfied, and the hidden danger after completion and the economic loss due to removing and reconstruction are effectively avoided.

The invention provides a high-water-level loess stratum multi-track railway composite overhead system and a construction method thereof. The high-water-level loess stratum multi-track railway composite overhead system comprises a plurality of temporary overhead piles arranged in the length direction of a multi-track line, wherein the temporary overhead piles are connected with a track of a multi-track through D-shaped auxiliary beams; waterproof curtains are arranged on the two sides of the track of the multi-track correspondingly; a working foundation pit is formed between the temporary overhead piles connected with the two adjacent rows of D-shaped auxiliary beams; dewatering wells are arranged on the two sides of the working foundation pit; and formal overhead piles are arranged in the working foundation pit and connected with the track of the multi-track through transverse lifting beams. The existing line is temporarily overhead by arranging the temporary overhead piles, the working foundation pit is excavated between the two adjacent rows of temporary overhead piles, regional dewatering is conducted, then the formal overhead piles are constructed, and the length of the formal overhead piles can be set according to the upper load so as to meet the bearing capacity. Through conversion from temporary overhead to formal overhead, the problems of construction bottlenecks of manual hole digging piles of a high-water-level loess stratum and limitation of the construction space of the multi-track railway are solved.

The invention belongs to the related field of spilt oil recovery vessel accessory equipment and discloses a rotary arm rotary device used for a brushing belt built-in type spilt oil recovery vessel. The rotary arm rotary device comprises a rotary base, a rotary central shaft, a rotary arm, a deep groove ball bearing, a thrust conical bearing and double rotary oil cylinders. The front end of the rotary base is provided with an upper cover plate and a lower cover plate which are provided with an upper locking cap and a lower locking cap. The rotary central shaft is mounted between the upper locking cap and the lower locking cap. An upper shaft sleeve of the rotary central shaft is fixed to the rotary arm, and a lower shaft sleeve of the rotary central shaft is fixedly connected with a bearing seat and then fixed to a lower plate of the rotary arm. The deep groove ball bearing and the thrust conical bearing are arranged in the mode that inner rings and shaft washers of the deep groove ball bearing and the thrust conical bearing and the bearing seat are mounted in an interference fit mode. The two oil cylinders are in parallel connection to achieve driving on the rotary arm. Through the rotary arm rotary device, axis perpendicularity can be further ensured while friction in the rotating process is effectively reduced, mechanical property requirements are fully met, and meanwhile, the rotary arm rotary device has the advantages of being stable in operation, high in bearing capacity, easy to control and the like.

The invention discloses a polyethylene insulated fire-resistant computer cable, which relates to the technical field of cables. The double-layer synthetic mica refractory layer is sleeved on the outer surface of the tinned annealed copper conductor, the silicone rubber insulation is sleeved on the outer surface of the double-layer synthetic mica refractory layer, and the woven glass fiber yarn is sleeved on the outer surface of the silicone rubber insulation. Tin-soft copper conductor, double-layer synthetic mica refractory layer, silicone rubber insulation and braided glass fiber yarn are set in two inside the metal / fiber composite braided sub-shield, which solves its poor fire resistance, high temperature resistance and anti-interference , the accuracy and stability of signal transmission are poor, and the anti-pull ability and bending flexibility are poor, which affects the use requirements, making it have good fire resistance, high temperature resistance, and anti-interference performance. It can ensure the accuracy of signal transmission. It also has high tensile and dragging ability and bending flexibility. It can meet the requirements of various cable laying and installation, bearing capacity, fire performance and signal transmission.

The invention discloses a sliding window with high bearing capacity and convenient and rapid to maintain. The sliding window comprises bottom frame profile bodies and sash transverse profiles. The sash transverse profiles are located at the upper ends of the bottom frame profile bodies. The sash transverse profiles are connected with the bottom frame profile bodies in a sliding mode. The frame profile bodies comprise bottom frame outer profiles and bottom frame inner profiles. The bottom frame outer profiles and the bottom frame inner profiles are arranged adjacently. First cavities are formedin the upper ends of the bottom frame outer profiles, second cavities are formed in one sides of the first cavities, and high-strength pulleys are arranged in the second cavities. According to the sliding window with high bearing capacity and convenient and rapid to maintain, the high-strength pulleys are rotationally installed on the bottom frame outer profiles and the bottom frame inner profiles correspondingly, meanwhile, rails matched with the high-strength pulleys are installed at the bottom ends of the sash transverse profiles, the sash transverse profiles can slide on the bottom frameprofile bodies through the rails and the high-strength pulleys to be pushed and pulled, the sliding effect is good, and the bearing capacity of the high-strength pulleys reaches up to 200KG, so that the bearing capacity of repeatedly opening and closing a sliding window main body is met.

The invention provides a foldable airport emergency construction composite material composite road panel and a manufacturing method thereof. The composite material composite road panel is composed of a veneer and a connecting cloth; the veneer is a rectangular board, which is laid side by side on the upper and lower sides of the connecting cloth, and the veneers on the upper and lower sides are arranged symmetrically; between the veneer and the connecting cloth Bonded together by epoxy resin; each veneer is made of composite fiber materials, such as glass fiber cloth, ultra-high molecular weight polyethylene fiber cloth and carbon fiber cloth. The material of the combined road panel is light, the density is only between 1.15 and 1.17, and the density is less than one-sixth of the ordinary steel plate. High bending strength of the panel > 280MPa, strong impact toughness > 240K j / m 2 , its strength can meet the carrying capacity of three generations of fighter jets and various types of armed helicopters. This panel has the advantages of high bending strength, strong impact resistance, light material, large area, good aging resistance and durability, easy repair and paving, time-saving and efficient repair, and can be reused.