164results about How to "Good cushioning and shock absorption" patented technology

The invention discloses an elastic supporting undercarriage of a fixed wing type unmanned aerial vehicle based on rack transmission. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, undercarriage main rods and electric telescopic rods. A connecting gear is fixedly mounted at the top end of the undercarriage main rod. The connecting gear is movably connected with the unmannedaerial vehicle through a rotating shaft, a fixed sliding block is fixedly installed at the upper position in the unmanned aerial vehicle, a rack is arranged at the rear portion of the fixed sliding block, a telescopic rod of the electric telescopic rod is fixedly connected with one end of the rack, and a connecting fixing piece is arranged between the telescopic rod of the electric telescopic rodand the rack. According to the elastic supporting undercarriage of a fixed wing type unmanned aerial vehicle based on rack transmission, the orientation effect can be achieved, and the bearing load ofthe rotating shaft is reduced. Meanwhile, the phenomenon that the undercarriage crosses a vertical line when being opened can be avoided. Meanwhile, the excellent damping and buffering effect is achieved, and the excellent protection effect on the unmanned aerial vehicle is achieved.

The invention relates to a pipe joint. The pipe joint comprises connecting pipes through which pipelines are inserted in an interference fit manner, and fitting pipes which integrally outwards extendfrom two ends of the connecting pipes, wherein the inside diameter of the fitting pipes is larger than the outside diameter of the pipelines; the fitting pipes and the connecting pipes are made of elastic materials; airbag layers which can be expanded after being inflated are arranged on the inner walls of the fitting pipes in an annular wrinkle form; air storing mechanisms which are made of elastic materials are arranged on the outer walls of the fitting pipes; an air conveying pipe is arranged between each air storing mechanism and the corresponding airbag layer; one-way air conveying mechanisms for conveying air into the airbag layers through the air storing mechanisms in one way are arranged on the air conveying pipe; exhausting pipes are arranged between the airbag layers and the outer walls of the connecting pipes; a fitting groove is formed in each connecting pipe; an air feeding pipe is arranged between the inner ring wall of each fitting groove and the corresponding air storing mechanism; the end, far away from the corresponding airbag layer, of each exhausting pipe communicates with the corresponding fitting groove; and sealing mechanisms for opening or closing the exhausting pipes and the air feeding pipes are arranged on the fitting grooves. The pipe joint is simply and quickly connected to the pipelines; and the sealing performance is high.

This invention relates to buffer device mask buffer, which is one host case of central air conditioner with ideal buffer, which comprises Front cover, spring, and base socket with spring set, wherein, the front cover is covered on the base socket outside radium. The invention is characterized by the following: the socket inside chamber and upper cover take shape of concaved one with holes inside and pad ring on the bottom and the protruding part neck imbeds into one card ring; the socket inside chamber is covered on the radium surface; the center column is one cylinder with its center of screw holes with its large radium end of guide arc mouth; the arc mouth is symmetric to the upper cover with large radium put on the neck plane.

The invention discloses a large-scale annular welding device which is convenient for fixing and adjusting the orientation. Hollow structure, the support device is provided with a slide rod and a screw rod, the lower ends of the two screw rods pass through the support device and are connected to each other through a synchronous belt transmission mechanism, the screw rod on the left is connected to the first motor, and the two A connecting block is threaded together on the screw rod, and the connecting block is slidably connected with the slide bar. The two connecting blocks are fixedly connected with a fixing frame, and a ring-shaped slide rail is arranged around the fixing frame. On the ring-shaped sliding rail, Sliding connections have sliders. The invention has the advantages of stable structure, simple operation, convenient movement, good buffering and shock absorption performance, convenient annular welding of the tank body, convenient clamping and fixing of the tank body, saving a lot of time and energy of staff, and is worthy of popularization.

The invention discloses a conveniently disassembled and assembled computer host casing, comprising a support base plate, wherein first mounting strips are fixedly mounted on both sides of the top endof the support base plate, a horizontally set first fixing rod is fixedly mounted between the two first mounting strips, the outer side of the first fixing rod is slidably sleeved with sliding blocks,the sliding blocks are slidably connected with the top end of the support base plate, damping springs are fixedly mounted between one sides of the two sliding blocks away from each other and the first mounting strips, the top ends of the sliding blocks are rotatably mounted with first support rods, a horizontally disposed support plate is rotatably mounted between the top ends of the two supportrods, second mounting strips are fixedly mounted on both sides of the top end of the support plate, a threaded rod is rotatably mounted between the two second mounting strip, and the outer thread of the threaded rod is fitted with a threaded sleeve. The invention has the advantages of ingenious structure, convenient use, good buffering and shock absorption effect, longer service life of the computer host, stable installation of the host casing body and convenient disassembly.

The invention discloses a helicopter undercarriage with the protection function; the undercarriage comprises a skid and an arch-shaped beam, the arch-shaped beam is connected to the top wall of the skid, a first supporting rod and a second supporting rod are connected to the inner wall of the arch-shaped beam, and a first supporting plate is rotatably connected to the outer wall of the first supporting rod; a first shock absorber body is connected to the top wall of the first supporting plate, a sleeve is connected to the bottom wall of the first supporting plate, a buffer shock absorption mechanism is arranged in the sleeve, the output end of the buffer shock absorption mechanism penetrates through the sleeve and is connected with a rotating shaft, a machine wheel is connected to the outer wall of the rotating shaft, and a connecting base is connected to the top wall of the arched beam. A supporting beam is connected to the inner wall of the connecting base, and a second buffer damping mechanism is connected to the top wall of the supporting beam; according to the helicopter undercarriage, a good buffering and damping effect can be effectively achieved on the helicopter body during landing, the situation that the helicopter is damaged due to the fact that the helicopter is subjected to high impact force during landing is avoided, and then a good protection effect is effectively achieved on the helicopter body.

The invention discloses a power-generation and inerter device used for a front fork of a mountain bike. The power-generation and inerter device mainly comprises outer tubes, a stroke tube, a ball screw inerter, a spring, an air damp, a power generation device and an energy storage device. The power-generation and inerter device is compact in structure and is convenient to mount. The power-generation and inerter device is applied to the front fork of the mountain bike, and realizes converting displacement generated by vibrations into rotation for power generation, so that the vibration-absorbing and vibration-damping effects can be achieved, and the rotation energy can be converted into electric energy for outputting or storing, and therefore, the combination of the inerter and the power generation device is realized.

The invention discloses an automatic clamping manipulator with a display, and mainly relates to the technical field of manipulators; The clamping fingers are all driven by the servo motor inside the fuselage, and the upper surface of the second joint shaft is connected with a fixed seat; the upper part of the telescopic sleeve passes through the second joint shaft and is connected with the fixed seat, and the top is connected with a motor; the clamping fingers pass through The connecting rod is connected with the telescopic sleeve, a spring is arranged between the clamping fingers, and a liner is arranged on the inner side of the end; a display is connected to one side of the fuselage, and a visual sensor connected to the display is arranged at the bottom of the second joint shaft; the manipulator of the present invention The damage to the workpiece is small, and the operator can easily monitor its operation status. The overall structure is simple, the assembly and maintenance are very convenient, the manufacturing and operation costs are low, and it can maintain efficient and stable operation for a long time.

The invention relates to the technical field of button production, and discloses a novel automatic combination machine of button assemblies. The machine includes a base, the upper end of the base is fixedly connected with the button machine body, the button machine body is fixedly connected with two clamping plates arranged symmetrically about the material outlet, A cushion box is connected between that two card plates, the cushion box corresponds to the two opposite side walls of the two card plates and is provided with a cylindrical groove, A thrust spring is arranged in the cylindrical groove, one end of the thrust spring is fixedly connected with the inner wall of the cylindrical groove, the other end of the thrust spring is fixedly connected with a finite position lever, a limit holecorresponding to the limit lever is arranged on the surface of the clamping plate, and a cushioning plate is slidably connected with the cushioning box. The novel automatic combination machine of button assemblies has the advantages of easy disassembly and assembly of the receiving plate and better cushioning and shock absorption function.

The invention relates to the technical field of mine electromechanical equipment and discloses a damping structure of the mine electromechanical equipment. The structure comprises a carrying platform,wherein an upper end of the carrying platform is fixedly connected with a damping box with an opening in the upper end, supporting legs are fixedly connected with four corners of the bottom of the carrying platform correspondingly, the other ends of the supporting legs are fixedly connected with a bottom plate, universal wheels are mounted on the bottom plate, brake pads are mounted on the universal wheels, a mounting plate is slidably connected into the damping box, fixed rods are symmetrically and fixedly connected with the bottom of the mounting plate, and movable plates are fixedly connected with the other ends of the fixed rods. The structure is advantaged in that the buffering and damping effects on the mine electromechanical equipment are better, the mine electromechanical equipment can be stably fixed to the damping structure, and the situation that the mine electromechanical equipment slips off and is disengaged, and consequently the electromechanical equipment falls off during operation, and losses are caused is avoided.

The invention provides an improved multifunctional pathological sampling and slicing device comprising a main fixing rod, an auxiliary fixing rod, a slicing placing box, a retaining ring, a rotating tube, a U-shaped handle, an anti-sliding rubber sleeve, an odor adsorption discharge machine, a dustproof uncapping structure, a rapid dehumidification and moisture-proof ventilator, a position-movableadjustable adsorption frame, a damping spring, a rubber outer sleeve, a damping base and an anti-sliding rubber pad. The main fixing rod is horizontally welded to a middle position of the upper leftside of the slicing placing box. The arrangement of a hollowed-out cap, a discharge pipe, an exhaust motor, a machine base, fan blades, an intake conduit, a joining lining base, an air absorption cover and an adsorption ball is favorable for timely adsorption of odor generated by slicing, and the problem that the odor pollutes the environment during discharge can be solved; and the arrangement ofa joining base, a fixing frame, a dust cap, a dustproof sealing strip, a handle and a magnet block is favorable for preventing dust from entering the slicing placing box and affecting follow-up observation work of the slicing.

The invention discloses a grabbing robot with a self-cleaning function and relates to the technical field of mechanical equipment. The upper portion of a telescopic sleeve is connected with a connection base in a matched manner through a second joint shaft, and the top of the telescopic sleeve is connected with a cylinder; a V-shaped clamping mechanism is connected with the telescopic sleeve through a connection rod; the middle portion of the V-shaped clamping mechanism is provided with a spring, and the inner side of the end portion of the V-shaped clamping mechanism is provided with a liner; a machine body is connected with an external PLC; one side of the V-shaped clamping mechanism is provided with a cleaning mechanism; the cleaning mechanism is connected with an external water tank through a plastic pipe and a water pump, and the head portion of the cleaning mechanism can rotate by 360 degrees; the surfaces of the machine body and the V-shaped clamping mechanism are each coated with a self-light-emitting layer which is made from long-lasting phosphor; and a fan is arranged on the middle portion of the V-shaped clamping mechanism. The robot is easy to operate, small in damage to workpieces in the grabbing process, high in working efficiency and positioning precision and long in service life, and has the convenient and fast cleaning function.

The invention provides a launch vehicle and a multi-stage pneumatic support cylinder for recovering the launch vehicle. The multi-stage pneumatic support cylinder comprises a cylinder tube, a gas generator arranged in a mother cylinder tube and a buffer device arranged at an expansion and contraction part. The cylinder tube comprises the mother cylinder tube and a plurality of sub-cylinder tubes disposed together with the mother cylinder tube in a sleeved mode and disposed in the mother cylinder tube. The mother cylinder tube constitutes a fixed part of the cylinder tube, and the multiple sub-cylinder tubes constitute the expansion and contraction part of the cylinder tube. The multi-stage pneumatic support cylinder for recovering the launch vehicle has the advantages of safety, reliability and light overall weight, and can meet the requirements of rapid opening, supporting, shock absorption and righting correction of a rocket landing gear during use.

The invention relates to the technical field of product detection, in particular to a test device and a test method for a fascia gun, the test device comprises a fixing frame and a test fixing plate,the fixing frame is used for fixing the body of the fascia gun, and one side of the fixing frame is used for exposing a massage head of the fascia gun; the test fixing plate is arranged on the side, used for exposing the massage head, of the fixing frame, a test simulation part used for simulating human skin is arranged on the side, facing the fixing frame, of the test fixing plate, and the test simulation part is used for being knocked by the massage head of the fascia gun. The quality of the fascia gun can be well monitored, and the blank that the quality of the fascia gun is detected through a simulation detection device and a detection method is effectively filled.

The invention discloses a friction pad for a lifter and a preparing method thereof. Substrate materials adopt acrylonitrile butadiene rubber, phenolic resin, kneaded polyurethane elastomer, zinc oxide, magnesium oxide, sulphur, stearic acid, coal ash, pyrite, accelerant, antiager, white carbon black, butadiene-styrene rubber, nano modifier, cetyltrimethylammonium chloride, light stabilizer and iron oxide yellow, the raw materials are sequentially mixed through different parts of ration, kneaded in a kneading machine and a rubber mixing mill, and pressed and molded in a die, and the obtained friction pad is high in friction coefficient which is above 0.5, high temperature-resistant, good in low temperature performance, high in tearing resistance, high in a hardness range, good in anti-water property without deformation, good in humidity and sliding resistance, radiation resistance and binding property without containing substance capable of damaging a steel rope, long in service life, capable of meeting use demands of various friction equipment, low in cost and good in use performance and has good buffering shock absorbing performance.

The invention discloses a high-elastic plastic runway and a construction method thereof. The high-elastic plastic runway sequentially comprises a base layer, a waterproof bonding layer, an elastic layer, a bonding layer and a surface layer from bottom to top, wherein the base layer is a cement base layer or an asphalt base layer; the waterproof bonding layer is a water-borne epoxy resin layer; theelastic layer is a mixture of a foamed polyurethane material and EPDM particles, and the mass ratio of the foamed polyurethane material to the EPDM particles is 1:(0.5-2); the bonding layer is made of a polyurethane adhesive; the surface layer is a mixture of a polyurethane adhesive and EPDM particles, and the mass ratio of the polyurethane adhesive to the EPDM particles is 1:(5-6). The high-elastic plastic runway is good in mechanical property, excellent in buffering and damping effect, resistant to aging, non-toxic, environmentally friendly and capable of being widely applied to indoor places such as kindergartens.

The invention relates to the technical field of agricultural equipment and discloses a pineapple leaf smashing device. The pineapple leaf smashing device comprises a cutting disc, a rotating mechanismand a lifting mechanism, the rotating mechanism is used for rotating the cutting disc, and the lifting mechanism is used for lifting the cutting disc. The rotating mechanism comprises a rotating rodand two clamping plates, a gear fixedly sleeves the rod wall of the rotating rod, a reciprocating screw rod is rotationally connected between opposite side walls of the two clamping plates through a ball bearing, the rod wall of the reciprocating screw rod is in threaded connection with a moving block, a rack meshed with the gear is fixedly connected to the side wall of the moving block, a rotating motor is fixedly connected to the outer wall of one of the clamping plates, and an output shaft of the rotating motor penetrates the side wall of the corresponding clamping plate to fixedly connectwith one end of the reciprocating screw rod. The pineapple leaf smashing device and a pineapple leaf smashing machine have advantages that preliminary rapid clearing and smashing of pineapple leaves can be realized, labor saving is realized, and convenience in use is provided for people.

The invention relates to a shock absorption tire, comprising a hub and a cover tire. A closed cavity between the hub and the cover tire is an external pressure chamber which is connected with a valve. The invention is characterized in that an air sac with an internal pressure chamber is installed inside the external pressure chamber, wherein, the air sac comprises an air sac base and a plurality of salient capacity cavities on the air sac base and that the internal pressure chamber is connected with the valve. An effect of elastic and supporting for the cover tire generated by an increased air pressure in the tire external pressure chamber buffers and eliminates a part of shaking force when the tires of a driving car under the effect of pavement bumpiness vibration loading changes; volume of the air sac base and the plurality of salient capacity cavities are compressed due to the surface of the air sac is affected by the rest shaking force through the air pressure in the external pressure chamber; and the air pressure in the internal pressure chamber increases along with the increasing of the air pressure in the external pressure chamber; the effect of elastic and supporting by the air pressure in the internal pressure chamber buffers and eliminates the rest shaking force further. The invention has the advantages of good buffering and shock absorption performance and long service life of the tires; therefore, the performance and service life of the car are improved, and more comfortable feelings are provided for people sitting in the car.

The invention discloses a movable carbon dioxide storage tank used for a coal mine, and relates to the technical field of carbon dioxide storage equipment. The movable carbon dioxide storage tank usedfor the coal mine comprises a movable frame and a storage tank body arranged on the movable frame. Ladder frames are fixedly arranged on the two sides of the upper end of the movable frame. A pushinghandle is fixedly arranged at one end of the movable frame. An air compressor is fixedly arranged above the storage tank body. A connecting pipe is fixedly connected between the air compressor and the storage tank body. An electromagnetic valve is fixedly arranged on the side face of the connecting pipe. According to the movable carbon dioxide storage tank used for the coal mine, the storage tankbody, the connecting pipe, an air pressure sensor, the air compressor, the electromagnetic valve and a control processor are arranged so that the air pressure in the storage tank body can be monitored, regulated and controlled in real time and is kept stable; and the situation that liquid carbon dioxide stored in the storage tank body is gasified due to the fact that the air pressure in the storage tank body is lower than a preset value range is prevented, and the liquid carbon dioxide can be better stored in the storage tank body.

The invention discloses an electric appliance placement rack. The electric appliance placement rack comprises movable baffle plates, a support body, sleeves, hydraulic cylinders, a cushion plate and wheel locking devices, wherein the movable baffle plates are fixedly arranged on two sides of an elastic plate; damping springs are fixedly arranged on the bottom of a friction damping cushion; the hydraulic cylinders are fixedly arranged on the bottoms of the sleeves; the multiple damping springs are arranged on the bottom of the friction damping cushion; the cushion plate is fixedly arranged on the bottoms of the hydraulic cylinders; and wheels are fixedly arranged on the bottom of the cushion plate. According to the electric appliance placement rack, a fixing plate is arranged and is fixedlyconnected with the support body, so that stability of the electric appliance placement rack is improved; the electric placement rack is provided with the movable baffle plates, the elastic plate, thefriction damping cushion, fixing bolts, the hydraulic cylinders, the damping springs and the wheels, so that the good buffering and damping effect of the electric appliance placement rack can be ensured; and the electric appliance placement rack is convenient to move, large in use area, and meanwhile very stable and firm, and thus has better use prospect.

The invention provides an adjustable pediatric nursing bed with a high comfort level. The adjustable pediatric nursing bed comprises a cleaning door, a dustbin, a bed tail plate, a barrel cover, a bedboard, a headboard, a hanging rod, a main side rod, an auxiliary side rod, a protective barrier, a rubber mattress, comfortable damping and buffering spring structures, child-movement-preventive slidable adjustment belt structures, an emergency record and transfer book structure and lifting-adjustable rapid transfer wheel structures. The vertical left side of the cleaning door is connected to a right lower outlet of the dustbin through hinges. The adjustable pediatric nursing bed has the advantages that through a connection base, a linear sliding rail, main U-shaped sliders, wing-shaped fastening bolts, auxiliary U-shaped sliders, main protection belts, auxiliary protection belts, primary hook and loop fasteners and secondary hook and loop fasteners, the problem that nursing is influenceddue to movement of children on the bed is solved, gaps between the main protection belts and the auxiliary protection belts can be adjusted slidably according to different heights of the children, and firmness and comfort level in fixation are guaranteed; through massage wheels, axles and a fixed axle seat, a back massage function for the children is added.

The invention discloses a 5G communication and information storage device based on the industrial internet and a use system thereof, and belongs to the technical field of industrial internet equipment. The device comprises a box body; a connecting plate is connected to the side wall of the box body, supporting frame sets are connected to the end, away from the box body, of the connecting plate, walking wheels are arranged on the bottom walls of the supporting frame sets, buffering and damping assemblies are arranged on the inner walls of the supporting frame sets, and adjusting assemblies are arranged between the supporting frame sets. A rotating door assembly is arranged on the supporting frame set, a partition plate is arranged on the inner wall of the box body, a positioning and fixing assembly is arranged on the partition plate, a driving motor is arranged on the top wall of the partition plate, and the output end of the driving motor is connected with the fixing assembly through a belt. According to the device, the good protection and heat dissipation effects can be conveniently achieved on the communication information storage host, meanwhile, the communication information storage host can be conveniently positioned and fixed, the whole device is convenient to move and fix, and the practical performance of the device is effectively improved.

The invention discloses an automatic clamping mechanical hand with a buffer damping function and mainly relates to the technical field of mechanical hands. The automatic clamping mechanical hand comprises a machine body, a first joint shaft, a second joint shaft, a buffer mechanism and a clamping finger. The two ends of the first joint shaft are in matched connection with the machine body and the second joint shaft correspondingly. The first joint shaft, the second joint shaft and the clamping finger are all driven by a servo motor arranged in the machine body. The upper end of a piston rod is in matched connection with an air cylinder through the buffer mechanism, the lower portion of the piston rod penetrates through the second joint shaft and is embedded in a connection pipe in a sleeved mode, and the bottom of the piston rod is fixedly connected with a coupling. The clamping finger is in matched connection with the piston rod through the coupling, and V-shaped blocks are fixedly connected to the inner sides of the two ends of the clamping finger. The machine body is connected with an external controller. According to the automatic clamping mechanical hand with the buffer damping function, the damage to a workpiece is small, a worker can operate the mechanical hand easily, and the joint shafts can be precisely and stably operated for a long time; and moreover, the mechanical hand is small in redundant structure, very convenient to assemble, disassemble and maintain and low in manufacturing and operating cost.

The invention belongs to the technical field of infusion chairs, and particularly discloses an easy-to-adjust infusion chair with a buffering effect. The infusion chair comprises a chair seat, a chairback and chair legs, wherein the chair seat comprises a base and a cushion; the cushion can slide along the inner wall of the base; the bottom of the cushion encloses a buffer cavity with the inner wall of the base; a buffer device is arranged in the buffer cavity; the buffer device comprises a guide plate, a fixed plate, a movable plate connected to the fixed plate in a sliding way and a gear arranged between the guide plate and the movable plate; the top end of the guide plate is fixedly connected to the bottom center of the cushion; the bottom end of the guide plate is connected to the bottom of the buffer cavity through a damping spring; the bottom of the fixed plate is fixedly connected to the bottom of the buffer cavity; and the gear engages with the guide plate and the movable plate. The infusion chair can effectively overcome the problem that infusion chairs have no buffering effect, and simultaneously solves the problem that the height of an infusion rod is not easy to adjust.

The invention discloses an oil field oil well pump capable of being installed conveniently and preventing leakage. The oil field oil well pump includes a seat frame. Rubber cushions are arranged at the top of the seat frame, and the tops and the bottoms of the rubber cushions are fixedly connected with connection pads. The connection pads at the bottoms of the rubber cushions are fixedly connectedto the top of the seat frame, and the connection pads at the tops of the rubber cushions are fixedly connected with a seat plate. Fixing sleeves are welded at the top of the seat plate, and a pump machine body is arranged at the top of the seat plate. The oil field oil well pump capable of being installed conveniently and preventing leakage can not only greatly shorten the installation time, butalso ensures that the pump machine body is not prone to falling off by arranging a fixing mechanism capable of locking fast and being installed firmly; and secondly, the oil well pump is provided witha stronger shock absorbing mechanism in a matched mode, good buffering and shock absorbing effects can be achieved, the own vibration of the pump machine body is reduced, adverse effects on the wholeoil field oil well pump are prevented, and thus the working efficiency of the oil well pump is improved.

The invention discloses a full-three-dimensional automatic rotary assembling workbench. The full-three-dimensional automatic rotary assembling workbench comprises a rotary table base, a Z-axis rotarydriving component, a Z-axis rotary support, a Y-axis rotary driving component, a Y-axis rotary support, an X-axis rotary driving component and a rotary tray. The Z-axis rotary driving component is fixedly connected to the upper end of the rotary table base. The Z-axis rotary support is fixedly connected to the upper end of the Z-axis rotary driving component. The Y-axis rotary driving component isfixedly connected to the side wall of the Z-axis rotary support. The Y-axis rotary support is connected to the side wall of the Z-axis rotary support through bolt bearings. The X-axis rotary drivingcomponent is fixedly connected to the upper end of the Y-axis rotary support. The rotary tray is fixedly connected to the upper end of the X-axis rotary driving component. The full-three-dimensional automatic rotary assembling workbench is suitable for multi-face and multi-position assembling of complex products, can achieve multi-face and multi-position assembling, can be conveniently used by people and improves the assembling efficiency.

The invention discloses a road sign device with a self-cleaning function, which comprises a mounting column, an air collecting box is fixedly arranged at the upper end of the mounting column, a flat elastic air bag is fixedly arranged on the side, away from the mounting column, of the air collecting box, and a road sign plate is fixedly arranged on the side, away from the air collecting box, of the elastic air bag; a first one-way valve is arranged on the side edge of the elastic air bag and leads to the interior of the elastic air bag from the outside, a second one-way valve is arranged between the elastic air bag and the air collecting box and leads to the interior of the air collecting box from the interior of the elastic air bag, and vertically-arranged sliding cavities are formed in the two sides of the road sign plate, a piston block is arranged in the sliding cavity in a sliding and sealing mode, and a gas collection box communicates with a gas guide pipe through a pressure valve. According to the road sign device, the elastic air bag is arranged between the road sign body and the mounting column, the elastic air bag plays a good role in buffering and damping, and when the road sign body is suddenly stressed by external force, impact at the joint of the mounting column and the air collecting box is relieved.

The invention discloses a safety protection type glass transfer robot and relates to the technical field of mechanical equipment. The two ends of a first joint shaft are connected with a machine body and a second joint shaft in a matched mode correspondingly. The first joint shaft, the second joint shaft and a clamping mechanism are driven by a servo motor inside the machine body. The upper portion of the second joint shaft is connected with a connecting seat. The upper portion of a telescopic sleeve penetrates through the second joint shaft to be connected with the connecting seat in a matched mode, and a cylinder is connected to the top of the telescopic sleeve. The clamping mechanism is connected with the telescopic sleeve through a coupler. V-shaped blocks are arranged on the inner sides of the two ends of the clamping mechanism. A PLC is connected to the top of the machine body. A sonar sensor is arranged above the machine body, and an audible and visual alarm is connected to the top of the sonar sensor. A visual inspection mechanism connected with the PLC is arranged at the bottom of the second joint shaft. According to the safety protection type glass transfer robot, operation is simple, damage to glass is small in the transfer process, the work efficiency and positioning precision are high, the glass position is judged accurately, and meanwhile safety is quite good.