195results about How to "Won't hit" patented technology

The invention discloses a method for analyzing fluid dynamics and structural mechanics of wind generator blades, which comprises the following steps: combining CFD and CAE methods, determining each parameter of an impeller model by adopting the momentum blade element theory, designing an entity model of the blade, establishing a three-dimensional model of a windmill blade, a hub and a peripheral wind site based on a Gambit software platform, meshing the model by adopting a partial structuring method, setting a proper boundary condition, calculating the performance of a finite element based on a Fluent software platform, extracting the blade torsion and calculating the blade power and the blade efficiency, establishing a blade structural model based on an ansys software platform and meshing the blade structural model, applying load and restraint condition to the blade structural model, analyzing the mode of the blade structure, performing equal torque treatment for pressure distribution acquired by the Fluent software platform, applying pressure surface load to the ansys software platform, calculating the structural mechanics characteristics of the wind generator blades, and extracting blade deformation and stress distribution characteristics.

The invention discloses a capsule endoscope magnetic control navigation device for medical treatment. The capsule endoscope magnetic control navigation device for medical treatment is used for actively controlling movement of capsules in the use process of a capsule endoscope, so that the stomach wall can be completely and effectively detected. The device comprises a hybrid magnetic field generator, a multi-DOF (multi-degree of freedom) motion mechanism and a controller, wherein the multi-DOF motion mechanism is used for carrying the hybrid magnetic field generator to move in a detection area so as to adjust spatial distribution of a magnetic field; the hybrid magnetic field generator comprises a permanent magnet and an electromagnetic coil, can generate a strong magnetic field used for guiding the capsules to move and can adjust the intensity of the magnetic field to a certain degree according to control signals; the controller controls the multi-DOF motion mechanism to move by receiving a control instruction of an operator and feedback signals of a sensor and controls coil current of the hybrid magnetic field generator. The device can guide the capsule endoscope to move in the stomach of a human body in the fixed modes including floating, fixed point floating, posture adjustment and the like, and accordingly, the capsule endoscope can automatically and completely detect the whole stomach wall.

The invention relates to a piezoelectric cantilever beam generator for a wind driven generator blade monitoring system and belongs to the field of new energy resources and power technology. A left end cover and a right end cover are installed at two ends of a shell body through bolts. The bottom of the left end cover and the bottom of the right end cover are respectively provided with a first magnet and a shaft sleeve in an embedded mode. Piezoelectric vibrators are connected between the left end cover and the shell body and between the right end cover and the shell body in a pressed mode. A second magnet is installed at a free end of each piezoelectric vibrator. A rotary shaft of a driving disc is placed in the shaft sleeve which is embedded at the bottom of the left end cover and the shaft sleeve which is embedded at the bottom of the right end cover. A mass block is welded to the outer edge of a driving disc body and a third magnet is embedded in the outer edge driving disc body. The piezoelectric cantilever beam generator for the wind driven generator blade monitoring system has the advantages that relative rotation is generated between the magnet arranged on the driving disc and the magnets arranged on the piezoelectric vibrators, the piezoelectric vibrators are effectively driven, power is generated, and external fixed supporting is not required; the generator is an independent assembly, so that the structure of each blade does not need to be changed, and installation and maintenance are convenient; the generator is composed of the fan-shaped piezoelectric vibrators with the magnets with different masses, so that the piezoelectric cantilever beam generator for the wind driven generator blade monitoring system is high in reliability, strong in power generation capacity and wide in speed band.

The invention relates to a UAV image-guided landing method of an unmanned ship shipborne platform. An UAV is provided with an airborne controller and an image scanner which are connected with each other, the image scanner is arranged at the bottom part of the UAV, an unmanned ship is provided with a shipborne controller and an image display screen which are connected with each other, the image display screen is arranged on the shipborne platform, the airborne controller and the shipborne controller can exchange information, and when the airborne controller receives an automatic landing instruction, accurate landing of the UAV on the unmanned ship shipborne platform is achieved through adopting the image-guided landing method. The UAV image-guided landing method can overcome waggle of the unmanned ship shipborne platform, and guide the UAV to land in a target region safely and reliably.

The invention relates to a cutting device for cutting strip material, in particular textile or steel rope strips, comprising a cutting device for moving relative to static strip material, wherein the said cutting device is composed of cutter (6) for generating precut with brim side, with circular cutting blade (48) and a bush hook (18) connecting with the back of the said circular cutter and cutting into the precut and through cutting strip material (2), or is composed of only one double-point tool (56) with a arc cutting blade (63) and a hook cutting blade (64).

The invention relates to a single-shaft high-precision intelligent linear motion mechanical arm adopting mechanical transmission, which comprises a motor, a ball screw rotationally connected with the motor through a coupler, an upper openable arm covering the outside of the ball screw and a flange socket connecting the openable arm and the motor, and is characterized in that: a sliding block in sliding connected with the ball screw is arranged above the openable arm; two sliding rail slots are formed on the outer side of the side plate of the openable arm; a sliding rail is connected above the openable arm by a connecting piece; the sliding rail is connected on the upper end of the side plate by a screw and a deep embedding method; the three limiting sensors are arranged on the two sides of the sliding rail grooves; and sensing needles are arranged at corresponding positions on the sliding block. In mechanical operation, the single-arm sliding block can serve as a worktable for holding instruments temporarily, the limiting sensors and the sensing needles on the sliding block can form sensing control, the addition of limiting blocks in the openable arm prevents the wear and collision between the sliding block and the inside of mechanical facilities, and transmission precision is improved.

The invention relates to a timepiece including a two-directional correction mechanism for a device displaying a time related quantity, the display device is actuated by a control lever ( 14 ) itself controlled by a cam ( 10 ), on which the control lever ( 14 ) abuts, the timepiece being characterized in that it includes a correction device ( 36 ) activated by a control stem ( 42 ) which, in the display device correction phase, via a return lever ( 24 ), moves the control lever ( 14 ) out of the path of the cam ( 10 ) on which said control lever ( 14 ) normally abuts in the normal operating phase of the timepiece ( 3 ).

The invention discloses a cage sleeve type throttle valve which comprises a valve body (14), a valve seat (15) installed in the valve body (14) and a spring (13) installed in a hole of the valve seat (15). A pressing ring (11) is pressed on the valve seat (15) after being connected with the valve body (14), the outer circle of the valve seat (15) is sleeved with a lower inner hole of a cage sleeve (7), and the outer circle of a valve rod (5) is sleeved with an upper inner hole of the cage sleeve (7). A valve deck (6) is installed on the valve body (14) and connected with the valve rod (5) through threads. A cylindrical filtering support (17) is connected with the lower end of the valve deck (6), the upper end of the valve rod (5) is connected with a hand wheel (1), the lower end of the valve rod (5) is connected with the cage sleeve (7), and a cage sleeve balance hole (71) in the cage sleeve (7) is communicated with a valve rod balance hole (51) in the valve rod (5). The cage sleeve type throttle valve is reasonable in structural design, low in noise, resistant to erosion and abrasion and long in service life, and flow can be precisely controlled.

The invention discloses a trash dumping device. The whole set of the device comprises a manipulator and a trash can, the trash can is clamped by the manipulator to be lifted, trash can covers are opened, and the trash can is rotated to dump rubbish. The manipulator is installed on a trash car platform, the manipulator is pushed by a four-stage telescopic hydraulic cylinder to clamp the trash can to lift the trash can upwards to reach a designated position, push rods on the two sides of the trash can is pushed by a poking piece to rotate, front and rear side trash can covers are driven by the push rods to move backwards and rotate, the push rods, the trash can covers, rocking rocks and the can body are of dual-rocking-rod mechanisms, and the opening and moving of the trash can covers are achieved. A manipulator arm is driven by the stepping motor to clamp and rotate the trash can, the poking piece is restored after trashes are dumped, and the push rods are restored with the help of thetorsion springs which are installed on the inner sides of the push rods to drive the trash can covers to be restored and closed. The trash dumping device has the advantages that the designing structure is compact, the trash can service life is long, fully automatic loading and unloading of the trashes can be achieved, and therefore the labor intensity of environmental sanitation workers is significantly reduced.

The invention discloses a universal joint, which comprises a linkage piece, a body and a control device. The linkage piece is provided with a driving hole which is connected with a power rotation tool. The body is provided with a ball head and a driving head, wherein the ball head is pivoted to the linkage piece through a pin so as to achieve the effect of multi-angle rotation, and the driving head can bear an object to be driven. A reinforced part is annularly arranged between the ball head and the driving head. A groove is formed on one side of the reinforced part, and a control hole is formed in the groove. The control device comprises a control piece, wherein the control piece is provided with a propping end arranged in the control hole and a control end hidden in the groove. Therefore, the control end of the control piece does not impact the hands during rotation of the universal joint, and the control piece is not damaged due to the collision of hard objects during the rotation.

The invention discloses through-flow turbine water guide mechanism internal and external ring coaxial processing equipment and a processing method. The processing equipment comprises a base and a numerical control dividing disc, wherein a connecting plate and an oblique cylinder are arranged at the top of the numerical control dividing disc; one end of the connecting plate is hinged to the numerical control dividing disc; the other end of the connecting plate is connected with an output end of the oblique cylinder; a mounting disk is arranged on the connecting plate; and a numerical control knife rest is erected on the outer side of the base. The processing method comprises the following steps: a locking block is moved; an internal ring and an external ring of a water guide mechanism are fixed on the mounting disk; a jacking cylinder and the oblique cylinder act; a hole drilling knife of the numerical control knife rest and guide vane mounting holes of the to-be-processed internal ring and external ring are on the same horizontal plane; the hole drilling knife of the numerical control knife rest stretches out; the hole drilling knife rotates to realize one-time processing on the guide vane mounting holes of the internal ring and the external ring; the hole drilling knife retracts under the action of a feeding device and stops rotation; a sliding cylinder, the jacking cylinder and the oblique cylinder reset; and the internal ring and the external ring of the water guide mechanism are dismantled.

The invention discloses a linear flame welding machine. The linear flame welding machine comprises a feeding mechanism, a welding mechanism and a discharging mechanism; the feeding mechanism comprisesa feeding table, a storing table and a pushing device; the welding mechanism comprises a welding room supporting frame and welding assemblies; each welding assembly comprises a welding head set, a longitudinal adjusting assembly and a transverse adjusting assembly; and the discharging mechanism comprises a discharging table, a material conveying device and a material table. A welding method comprises the following steps of (1) feeding of welded workpieces; (2) adjustment of the height of the welding assemblies; (3) adjustment of the position of the welding head sets; (4) welding; and (5) discharging of the welded workpieces. The linear flame welding machine is ingenious and reasonable in structural design, and convenient and rapid to use and operate, achieves automatic treatment operationof workpiece feeding and discharging through the feeding mechanism and the discharging mechanism, relieves labor intensity, improves operation safety performance, can conduct welding on the workpieces at the same time through design of the multiple welding assemblies, effectively increases the welding rate, and improves the work efficiency.

The invention discloses an air outlet grid used for an air purifier and the air purifier and relates to the technical field of air purifying equipment. The air outlet grid used for the air purifier and the air purifier are invented for solving the problems that an air purifier in the prior art is large in air outlet amount loss and high in noise. The air outlet grid used for the air purifier comprises an inner ring grid body and an outer ring grid body. The inner ring grid body comprises multiple inner ring ribs. The outer ring grid body comprises multiple outer ring ribs. The multiple inner ring ribs and the multiple outer ring ribs are distributed in a radial manner with the center of the inner ring grid body as the center, the bending directions of the multiple inner ring ribs are consistent, the bending directions of the multiple outer ring ribs are consistent, and the bending directions of the inner ring ribs and the outer ring ribs are opposite. By means of the air outlet grid used for the air purifier and the air purifier, the air outlet amount losses can be reduced, and noise is lowered.

The invention discloses a cold extrusion die for a double end pipe joint. The cold extrusion die comprises an upper die fixing plate, a lower die fixing plate, an upper die sleeve, a middle die sleeve, a lower die sleeve and upper die guide pillars, wherein an inner bore of the middle die sleeve is in a twelve angle plum flower shape, and ejection devices are arranged between the lower die fixingplate and the lower die sleeve, and between the middle die sleeve and the upper die sleeve. The cold extrusion die also comprises support plates fixed on a left side and a right side of the upper diefixing plate, wherein the support plates are also located on a left side and a right side of the upper die sleeve, the middle die sleeve, the lower die sleeve and the lower die fixing plate, and are flexibly connected with the upper die sleeve and the middle die sleeve. The cold extrusion die for double end pipe joint of the present invention can be applied to manufacture of double end pipe jointin a twelve angle plum flower shape, and has advantages of decreased production costs and easy demoulding.

The invention provides a Mars probe secondary brake capture control method based on Newton iteration. During capturing and braking, after a Mars detector breaks down, an on-board computer is reset, then, the Mars probe is subjected to secondary braking by adopting a Newton iteration-based capturing and braking optimization method, so that the detector can smoothly enter a target orbit in the Marscapturing and braking process, and a secondary capturing and braking strategy can be autonomously designed for faults in the capturing and braking period. Besides, a safety zone for capturing and braking is also arranged and comprises the shortest ignition duration and the longest ignition duration of braking and capturing; when the on-board time is within the interval of the shortest ignition duration and the longest ignition duration, the speed increment reaches the nominal speed increment or the on-board time reaches the maximum ignition duration, the engine shutdown operation is executed,so that the Mars detector can form an annular fire track during braking and capturing and cannot impact Mars due to overlong ignition time, and the safety of Mars braking and capturing is guaranteed.

The invention relates to a tuning fork vibration chaotic experiment table which is characterized in that a U-shaped tuning fork is horizontally arranged on a platform, the rear end of the tuning fork is fixedly arranged on the platform, and the front end thereof is suspended; an electromagnet fixedly arranged on the platform is positioned between two tuning fork pieces of the U-shaped tuning fork, and gaps are reserved between the electromagnet and the inner side walls of the two tuning fork pieces; a vibration piece is arranged at the front end of a tuning fork piece along a tuning fork piece in a suspending way; a current vortex sensor probe is arranged on one side at the front end part of the vibration piece and fixed on the platform, and a gap is reserved between the current vortex sensor probe and the vibration piece; and a chord line which is horizontally arranged is fixedly connected with the front end of the vibration piece, and a weight is suspended at the other end of the chord line through a dead pulley. By adopting the tuning fork vibration chaotic experiment table, the chaos phenomenon generated by a nonlinear vibration can be intuitively observed, and the chaotic motion can be quantificationally researched.

The invention discloses a garbage vertical discharge device for a building high-rise. The device structurally comprises an inlet, an upper connecting guide port, a middle pipe and an arc buffer port,wherein the inlet and an auxiliary inlet are of an integrated structure; when building garbage falling down along a middle cylinder above the inlet slides through the inlet, the building garbage can firstly abut against an abutting surface, and force is converged on the abutting surface to be released; when a large surface arc bears impact force, unfolding corners form proper stretching and protection, garbage above can turn with a certain radian when garbage above and garbage below are placed at the same time, and then the garbage above is prevented from colliding with the garbage below; theinternal space of a middle buffer cylinder is limited by a core impact corner protruding inwards, so that force is released towards a middle support strip inside, the abutting impact force can be applied together along a top guard head, the garbage is conveyed out after the impact force is reduced, an outlet can be limited when the building garbage is about to be discharged out of the device, andtherefore the garbage is discharged after impact buffering.

The invention discloses an electronic transformer coil winding and stripping device. A framework with a closed end moves along with rotation of a rotating disc, in the moving process, a buffer wheel at the lower end of a jacking and pressing column passes through a jacking and pressing block, the jacking and pressing block is enabled to jack the jacking and pressing column upwards, the jacking and pressing column drives a supporting rod and a material lifting block to move together, when the buffer wheel passes through the topmost end of the jacking and pressing block, the jacking and pressing column ascends to the maximum height, the jacking and pressing block jacks the framework to ascends to the upper part of the material lifting guide rail at the moment, when the punching wheel moves out of the jacking and pressing column, the jacking and pressing column descends, the framework on the material lifting block can be retained on the upper part of the material lifting guide rail, the upper end of the positioning column is separated from the material lifting guide rail along with the movement of the rotating disc and the gradual increase of the height of the material lifting guide rail, and the framework is completely stripped and detained on the material lifting guide rail, so that the stripping of the framework is achieved, the framework cannot be impacted in the whole process, the framework is prevented from being damaged, the stripped framework is arranged on the material lifting guide rail, and the framework is convenient to arrange.

The invention discloses a nailing device capable of protecting hands from being hurt. The nailing device comprises a U-shaped body, taking-out slots are arranged along the lengthwise direction of the body in the middle of two extended ends of the body, and fixed holes are arranged at the tail ends of the two taking-out slots. When the nailing device is used, a certain distance is reserved between hands and a nail during a nailing process, so that hands can not be smashed by a hammer.

The invention relates to a barrier gate applied to a community entrance. The barrier gate comprises a barrier gate box main body, wherein a main barrier gate rod is arranged on the barrier gate box main body. The barrier gate is characterized in that a cavity with an opening is formed in one side connected with the main barrier gate rod of the barrier gate box main body, and a telescopic secondary barrier gate rod device is arranged in the cavity; the secondary barrier gate device comprises a hollow first secondary barrier gate rod, a hollow second secondary barrier gate rod and a hollow third secondary barrier gate rod; the third secondary barrier gate rod is arranged in the second secondary barrier gate rod, the second secondary barrier gate rod is arranged in the first secondary barrier gate rod, and the length sum of the first secondary barrier gate rod, the second secondary barrier gate rod and the third secondary barrier gate rod is equal to the length of the main barrier gate rod. The barrier gate disclosed by the invention has the beneficial effects that a structure is compact, the secondary barrier gate rods are flexible to collect and release, and an intercepting and alarming effect of the barrier gate is stronger.

The invention relates to a automobile backdoor lock comprising a lock body and a lock pin, wherein the lock body is mounted on a backdoor through a lock body mounting hole, and the lock pin is mounted on a automobile body through a lock pin mounting hole; the lock body is provided with a power supply interface, an electrical motor, a clipping tongue sleeve and a clipping tongue which is arranged at the center of the clipping tongue sleeve and is capable of overturning, wherein the electrical motor controlling the clipping tongue is connected with the clipping tongue through a driving mechanism; the lock pin comprises a lock pin base, a lock pin pole and rubber buffer blocks, wherein the lock pin pole is fixed at the center of the lock pin base, the two rubber buffer blocks are respectively and symmetrically arranged at two sides of the lock pin base, the distance between the two rubber buffer blocks is equivalent to the width of the clipping tongue sleeve of the lock body, thus the clipping tongue sleeve exactly inserts between the two rubber buffer blocks, and the clipping tongue at the center of the clipping tongue sleeve matches the lock pin pole to realize locking. The backdoor lock can effectively solve the problems of short service life, big noise of unlocking and locking, and deviation of the lock body and the lock pin in the prior lock.

The invention relates to a micro-mist humidifier. The micro-mist humidifier comprises sprayer bodies, a kettle, water spraying devices and air outlet devices. Each set of sprayer body is provided with the two corresponding water spraying devices located on the upper side and the lower side of a sprayer body. Each air outlet device comprises an air cap and an air nozzle arranged in the air cap, wherein the air cap integrally extends from the corresponding sprayer body and is located between the two corresponding water spraying devices. The part, making contact with the corresponding air nozzle, of each air cap is provided with a positioning table for preventing the air nozzle from being eccentrically installed. It is guaranteed that each air nozzle cannot be eccentrically installed in the corresponding air cap through the corresponding positioning table, and it is guaranteed that the air outlet direction of each air nozzle is perpendicular to the air outlet direction of air outlet holes. The upper side and the lower side of each sprayer body are provided with the two corresponding water spraying devices. The water mist direction is diffused in a horizontal fan-shaped manner, and the situation that water mist is excessively centralized in the vertical direction due to the effect of gravity is avoided. According to the micro-mist humidifier, the diffusion area of the diffusion manner is larger, water mist cannot touch a ceiling and cannot impact on obstacles on the ground, and the absorbing and diffusing effects are better.

The invention provides a non-contact probe signal loading device. The non-contact probe signal loading device comprises a probe metal sheet which is electrically connected to a signal loading end, and the lower portion of the probe metal sheet faces a signal accessing metal sheet needing to be loaded with a signal; the probe metal sheet and the signal accessing metal sheet form a signal transmission capacitor, and the loaded signal is transmitted to the signal accessing metal sheet through the probe metal sheet by taking the signal transmission capacitor as a medium. According to the non-contact probe signal loading device, a non-contact probe is designed through the direct current blocking and alternating current communicating characteristics of the capacitor, the probe does not directly make contact with TFT glass, the signal is transmitted through the capacitor effect, and the problem that the probe scratches or pricks the TFT glass to cause cracks is solved.

The invention discloses a mining equipment supporting platform convenient to adjust. The mining equipment supporting platform convenient to adjust comprises a base and a fixed platform. A vertical hydraulic cylinder is arranged at the lower end of a groove. A clamping circular ring is arranged in the inner cavity in the upper portion of the groove, wherein reset springs are fixedly connected to the side wall of the groove, the piston rod in the hydraulic cylinder penetrates through the clamping circular ring to be fixedly connected with a supporting plate, and the upper end of the supporting plate is fixedly connected with the fixed platform. According to the mining equipment supporting platform convenient to adjust, the structure is simple; because the hydraulic cylinder is added, conditions for rising and falling of a fixed plate can be conveniently provided, and it is guaranteed that machines can work normal in the fixed plate; the offset of the piston rod in the hydraulic cylinder in the left and right direction is lessened with the clamping circular ring and the reset springs, so that it is guaranteed that the piston rod will not bump the base, and the service life of the piston rod is prolonged; and with clamping grooves, bearings and universal wheels, the mining equipment supporting platform can be removed conveniently, and therefore the efficiency of mining is improved.

The invention discloses a construction method for fabricating a composite waterproof curtain by embedding rigid piles into low-strength concrete piles. The construction method comprises the following steps of 1) surveying and paying off, 2) drilling low-strength concrete pile holes, and pouring the low-strength concrete piles, 3) embedding preformed groove forming rods into the low-strength concrete piles, 4) extracting the preformed groove forming rods, and forming the low-strength concrete piles, 5) drilling rigid pile holes, and placing a reinforcing cage in a hanging manner, and 6) pouring the rigid piles, and curing the rigid piles. The construction method solves the problems that the available concrete template waterproof occlusion piles are relatively high in construction cost and low in efficiency, resources are wasted and an environment is polluted, and the underground structure waterproof construction method is safe, reliable, economical, reasonable and wide in application, and reduces pollution.

The invention discloses an anti-falling protection device of an elevator. According to the anti-falling protection device, when a lift car falls accidentally, rotating wheels of a first speed limiterand a second speed limiter above an elevator shaft change the centrifugal force due to too fast rotating speed so as to stop rotating, at the moment, the speed limiters stop rotating, so that a braking effect is generated on the falling of the car; safety ropes are arranged in the elevator shaft, and the length of the safety ropes is consistent with the height of the elevator shaft so that when the lift car falls, the safety ropes can ensure that the lift car cannot be collided with the ground; first buffer springs are arranged in the lift car, and second buffer springs and third buffer springs are arranged at the bottom of the lift car so that when the lift car falls, the three layers of buffer springs at the bottom can absorb the falling force; a polyurethane buffer is arranged at the position, corresponding to a counterweight block, below the lift car in the elevator shaft so that the falling lift car can be effectively buffered; and therefore, deceleration buffering is carried outon the falling elevator in the aspect of bottom buffering and upper power traction by the anti-falling protection device, the structure is simple, and the safety and reliability are high.

The invention relates to a UAV image-guided landing method of an unmanned ship shipborne platform. An UAV is provided with an airborne controller and an image scanner which are connected with each other, the image scanner is arranged at the bottom part of the UAV, an unmanned ship is provided with a shipborne controller and an image display screen which are connected with each other, the image display screen is arranged on the shipborne platform, the airborne controller and the shipborne controller can exchange information, and when the airborne controller receives an automatic landing instruction, accurate landing of the UAV on the unmanned ship shipborne platform is achieved through adopting the image-guided landing method. The UAV image-guided landing method can overcome waggle of the unmanned ship shipborne platform, and guide the UAV to land in a target region safely and reliably.

The invention relates to the field of compressors, in particular to a piston limiting structure, a compressor and heat exchange equipment. The piston limiting structure comprises an air cylinder, a piston and a limiting part. The air cylinder is provided with a piston hole, wherein the piston hole is perpendicular to the axis direction of the air cylinder and penetrates through the air cylinder, and the projection of the piston hole in the penetrating direction is circular. The piston is arranged in the piston hole in a matched shape mode and can slide in the piston hole in a reciprocating mode. A limiting surface is formed in the side wall of the piston. The length part, in the axis direction of the piston, of the limiting surface does not penetrate through the two ends of the side wall of the piston. The air cylinder is provided with a limiting hole penetrating from the outer wall of the air cylinder to the piston hole. The limiting part is arranged in the limiting hole in a matchedshape mode and abuts against the limiting surface to limit the piston to rotate around the axis of the piston. According to the piston limiting mechanism, clearance volume is not introduced, so that the piston limiting effect is better.

The invention belongs to the technical field of vehicle carrying robots, and discloses a telescopic four-claw type vehicle carrying robot forklift method based on laser. The position relation of a vehicle carrying robot in the longitudinal beam direction is ensured by adjusting the plane where a laser radar scanner and an axle distance center vertical line are located to be perpendicular to the side face of a vehicle and a cross beam of the vehicle carrying robot. After the laser radar scanner corresponds to the center point of an axle distance of the vehicle, the distance between the laser radar scanner and the center point of the cross beam is moved, it is guaranteed that the center point of the cross beam corresponds to the center point of the axle distance of the vehicle, and the position relation of the vehicle carrying robot and the vehicle in the direction of the cross beam is positioned. Finally, it is ensured that a vehicle carrying robot forklift does not collide with wheels.