47results about How to "Realize cushioning and shock absorption" patented technology

The invention provides an omnidirectional running-type forklift truck, belonging to material handling machinery. The prior forklift truck needs to do rotary motion around some instantaneous rotation center when the forklift truck turns, thereby requiring large auxiliary space. The omnidirectional running-type forklift truck comprises a driving wheel, a back supporting wheel, a front steering wheel, a driving wheel steering device and a front wheel steering device. The driving wheel steering device comprises a redirector for a steering wheel, a steering motor and a transmission mechanism connected between the steering motor and the driving wheel. The front wheel steering device has a steering cylinder arranged on a forward-extending leg; the steering cylinder drives a front steering wheel revolving body through a connecting rod; the steering cylinder is connected to a steering valve through a steering oil pipe; and an operating handle is connected with the steering valve. When the forklift truck handles super-wide goods in crisscross goods shelf channels and needs to enter a vertical channel, the forklift truck does not need to turn but only move transversely, and then the length direction of the super-wide goods is in accordance with the running direction of the forklift truck; therefore, the huge auxiliary steering space of the prior forklift truck does not need to be provided, so as to greatly save precious storehouse space.

The invention discloses a high-strength multi-layer switch cabinet which comprises a cabinet body and a limiting assembly. Guide rods are symmetrically arranged on the two sides of the cabinet body, movable blocks are movably connected to the guide rods in a sleeving mode, and a layer plate is arranged between the corresponding movable blocks on the two sides. The limiting assembly comprises mounting grooves, a guide groove, a limiting rod, a limiting plate and a baffle. The number of the mounting grooves is two. Two mounting grooves are symmetrically formed in the two ends of the movable block. The guide groove penetrates through the upper and lower surfaces of the mounting groove. One end of the limiting rod penetrates through the side surface of the mounting groove and extends out of the mounting groove. The limiting plate is arranged at one end, outside the mounting groove, of the limiting rod. The baffle is arranged at the end, located in the mounting groove, of the limiting rod.The upper end and the lower end of the baffle are in sliding fit with side faces of the upper side and the lower side of the guide groove correspondingly. A control assembly is arranged on the limiting assembly. According to the high-strength multi-layer switch cabinet, flexible adjustment of the distance between the layers can be achieved according to needs, the strength and the shock resistanceof the cabinet body are improved, and the high-strength multi-layer switch cabinet is high in practicability.

The invention discloses a multi-angle buffer protection device facilitating water tank transportation and a protection method. The protection device comprises a protection chamber, a clamping mechanism is arranged in the protection chamber, the clamping mechanism comprises a clamping table, the outer bottom end of the clamping table is fixed to the inner bottom end of the protection chamber, and afirst motor is fixed to one side wall of the interior of the clamping table; and a threaded rod is fixed to the output end of the first motor, the end, away from the first motor, of the threaded rodis rotationally connected with the inner side wall of the clamping table, the outer side of the threaded rod is sleeved with a threaded sleeve, the threaded sleeve is in threaded connection with the threaded rod, and a first sliding rod is arranged below the threaded rod. Through the arrangement of a moving mechanism, the protection device can be easily moved to a designated place, convenience andrapidness are achieved, and practicability is high. Through the arrangement of a clamping mechanism, a water tank is well clamped and fixed, the situation that the water tank moves in position in thetransportation process and is damaged due to collision is avoided, and meanwhile the water tank can be protected.

The invention discloses a basketball training device capable of realizing single-person repeated shooting practice, which relates to the basketball training device. The device is characterized in thatclamping rods are arranged on the two sides of the back face of a backboard respectively, L-shaped clamping rods are arranged on the outer side faces of the bottoms of the clamping rods, semicircularexpanding and supporting frames matched with the backboard are clamped in the L-shaped clamping rods at the bottoms of the clamping rods on the two sides of the back face of the backboard, a net bagwhich is matched with the semicircular expanding and supporting frame and is of an inverted-cone-shaped structure is arranged on the lower surface of the semicircular expanding and supporting frame, aball guide barrel which is wide in the upper portion and narrow in the lower portion and is of an inverted-cone-shaped structure is arranged at the lower end of the net bag, a U-shaped ball guide plate is arranged at the lower end of the ball guide barrel, and a ball collecting frame is arranged at the other end. By means of the basketball training device, the shot basketballs and the collided and popped basketballs can be efficiently recycled and collected in the shooting training process, the recycled basketballs can be accurately conveyed into the basketball collecting frame on one side ofan athlete, and other people do not need to additionally pick up and pass the basketballs.

The invention discloses an adjustable transcranial magnetic therapy instrument supporting device for the neurology department. The supporting device comprises a supporting fixing seat; two side transmission mechanisms are arranged on the supporting fixing seat; lifting and shock absorption bottom wheels are arranged on the two side transmission mechanisms; and a striding mechanism is arranged on the bottom of the supporting fixing seat. A transcranial magnetic therapy instrument is directly fixed on the supporting device, and different supporting manners can be selected according to the condition of the ground surface and whether there is an obstacle; when the bottom surface is flat, the lifting and shock absorption bottom are used to provide supporting, and the device can freely move; andwhen the device passes through a ground surface having the obstacle or a threshold, the striding mechanism is directly used to provide supporting, and in this way, the device can move on different ground surfaces; and the supporting device can avoid manual lifting, can save manpower and material resources, and is convenient to use.

The invention discloses a four-wheel independent suspension system of power-driven wheelchairs. The four-wheel independent suspension system comprises a frame, two front wheels and two back wheels. Each of the front wheels and each of the back wheels are hinged on each of front connecting rods and back connecting rods respectively, a cross rod extending in vehicle width direction is arranged on the frame, adapter sleeves in box section structure are arranged at end portion of the front connecting rods and the back connecting rods, and shock absorbers are sleeved in the adapter sleeves. Each of the shock absorbers comprises a rectangular outer tube and a rectangular inner tube, the inner tube is arranged in the outer tube and can rotate 45 degrees opposite to the outer tube, seamed edge of the inner tube is opposite to the tube wall of the outer tube, and an elastic rubber mat is arranged between the seamed edge of the outer tube and the tube wall of the inner tube; inner tubes of the chock absorbers are sleeved on the cross rod, the front wheels and the back wheels are respectively and independently suspended on the frame via the adapter sleeves and the shock absorbers. The four-wheel independent suspension system of the power-driven wheelchairs is good in shock absorbing effect, comprehensive in shock absorbing direction and is beneficial to the miniaturization and compactness of the power-driven wheelchairs.

An embodiment of the invention discloses homogenizing equipment for production of home decoration coatings, belonging the technical field of coating processing. The equipment comprises a grinding tankfor grinding and filtering coatings and a homogenizing tank for mixing the ground coatings, wherein filter pipes are fixed to the upper side and the lower side of an inner cavity of the grinding tank; grinding joints for extruding and grinding the inner walls of the filter pipes are arranged on the inner sides of the filter pipes; a shaft rod is fixed to the middle part of the bottom of each grinding joint; one side of the bottom of each shaft rod penetrates through the homogenizing tank; a motor is fixed to one side of the bottom of the homogenizing tank; the power output end of the motor isconnected with the shaft rods; a stirrer is fixed to the side surface of each shaft rod in the homogenizing tank; and one side of the top of each filter pipe communicates with a feeding pipe. Throughcooperation of the grinding tank and the homogenizing tank, coating particles can be conveniently homogenized after being fully ground, so the fluid uniformity of coating production is improved.

The invention belongs to the technical field of instrument disinfection equipment for the obstetrics and gynecology department, particularly relates to an instrument disinfection device for the obstetrics and gynecology department, and aims to solve the problems that a disinfection device of an existing instrument disinfection device for the obstetrics and gynecology department can only carry outdisinfection on instruments in a single instrument box and is poor in stability in the moving process, and in addition, instruments in the instrument box are prone to vibrating when the instrument boxis transferred. According to the scheme, the instrument disinfection device comprises a mobile cabinet, wherein a movable cabinet is slidably connected to the interior of the mobile cabinet; slidingbases are fixedly connected to the two sides of the outer wall of the movable cabinet respectively; and sliding grooves matched with the sliding bases are formed in the inner wall of the mobile cabinet. According to a lifting mechanism, under the cooperation of a movable block, a movable groove, a first threaded rod, a first fixed block, a first bevel gear, a second bevel gear, a transmission shaft and a second fixed block, when the instrument box needs to be taken out or put in, the movable cabinet can be conveniently lifted in the mobile cabinet, operation is convenient, and the working efficiency of medical staff is improved.

The invention discloses a safety protection structure of a high performance liquid chromatograph. The safety protection structure comprises a box body, a buffer assembly and an extension assembly; airgrooves are evenly formed in the side face of the box body, supporting legs are evenly arranged on the bottom face of the box body, guide rails are symmetrically arranged on the upper surface and thelower surface of the interior of the box body, sliding blocks are slidably connected into the guide rails, liquid chromatographs are arranged on the sliding blocks, and a door body is movably connected to the side face of the box body. The buffer assembly comprises a fixed plate, two guide frames, two movable blocks, first springs, guide rods, a mounting base, second springs, vertical plates anda dustproof net, the fixed plate is fixedly connected to the sliding blocks, the two guide frames are symmetrically arranged and fixedly connected to the two sides of the surface of the fixed plate correspondingly, and the movable blocks are slidably connected to the middles of the guide frames; the safety protection structure of the high performance liquid chromatograph has good buffering and damping effects, can effectively protect the high performance liquid chromatograph from being impacted by external force, has good dustproof and moistureproof effects, and is high in practicability.

The invention provides a multipurpose installing device based on electric automatic equipment and relates to the technical field of electric appliance installing devices. The multipurpose installing device based on the electric automatic equipment solves the problems that a cable arranging structure cannot achieve drag-resisting protection of a cable or achieve drag protection under the conditionof guaranteeing that the cable is free of damage, automatic limiting of a locking nut and automatic alignment of a threaded hole cannot be achieved, and a damping function cannot be achieved. The multipurpose installing device based on the electric automatic equipment comprises a body seat. The body seat is composed of two rectangular rods. Two body rods are welded to the body seat. A locking rodis provided with ten clamping grooves arranged in a rectangular array, the clamping grooves are of a major-arc-shaped groove structure, the clamping grooves undergo edge grinding treatment, the groovedepth of the clamping grooves is equal to 70% of the diameter of the cable, and therefore when a carding plate makes contact with the cable and clamps the cable, the cable can be prevented from beingdamaged.

The invention belongs to the field of melt-blown, hot air and spunlace non-woven materials, and relates to preparation of superfine fibers, in particular to a melt-blown medical protective material with a cattail vein structure as well as a preparation method and application of the melt-blown medical protective material. The melt-blown medical protective material is of a three-layer fiber structure, the surface layer and the bottom layer are hydrophilic degradable directionally-arranged fiber layers, and the middle layer is a fluffy degradable cellulose fiber layer; the preparation method comprises the following steps: preparing the hydrophilic modified polymer; preparing and netting a directionally arranged fiber layer; drafting and forming the directionally arranged fiber layer; preparing a fluffy degradable cellulose fiber layer; a spunlace reinforcing procedure of the three-layer composite material; finally, the non-woven composite material which is high in longitudinal strength and capable of achieving horizontal directional diffusion of liquid is formed. The environment-friendly degradable raw materials are adopted, the environment-friendly preparation method is also adopted, and the material can be widely applied to the fields of medical protection, sound insulation and noise reduction materials, buffering and damping materials, wiping materials and the like.

The invention discloses vehicle-mounted Beidou equipment with an anti-interference function, and the equipment comprises a fixed block which is provided with a first installation groove and a second installation groove, the first installation groove and the second installation groove are communicated through a through groove, the interior of the first installation groove is slidingly connected with a first installation plate, and the first installation plate is provided with a damping plate. And a Beidou terminal is installed on the damping plate, a plurality of damping pieces are arranged between the first mounting plate and the inner bottom of the first mounting groove, a second mounting plate is slidably connected into the second mounting groove, and a damping mechanism is arranged between the second mounting plate and the first mounting plate. The vehicle-mounted Beidou equipment is reasonable in structure, capable of effectively damping the Beidou terminal and the satellite receiver, capable of stably receiving signals and effectively protecting the Beidou terminal and the satellite receiver, not prone to damage, capable of conveniently adjusting the position of the satellitereceiver, easy to operate, capable of being turned over and fast, and capable of bringing convenience to a user.

The invention discloses a transverse stability reinforcing device based on the hub motors and a semitrailer. The device comprises a stabilizing base, driving arms and supporting arms are rotatably connected to the two sides of the stabilizing base correspondingly, and the driving arms and the supporting arms are symmetrical about the stabilizing base; the driving arm is connected with the supporting arm through a supporting frame, a transmission mechanism is installed on one side of the supporting frame, and a telescopic rod is connected between the transmission mechanism and the stabilizing base. According to the invention, the problem that the semitrailer of the hub motor is inconvenient to support transversely, stably and reliably in the prior art is solved; the problems that a transverse mechanism of a hub motor semitrailer is buffered and damped, and reliable connection of a reinforcing device structure is inconvenient are solved, transverse stable and reliable supporting of the hub motor semitrailer is achieved, resonance generated in the vehicle running process is reduced, and firmness and safety between connecting pieces are improved.

The invention discloses a portable platform mechanism used for industrial digital printing of shoes. A first sliding groove and a second sliding groove are formed in a base. A first sliding wheel is arranged in the first sliding groove. A second sliding wheel is arranged in the second sliding groove. A first sliding plate is mounted on the first sliding wheel. A limiting mechanism used for limiting a shoe mold is mounted on the first sliding plate through a hinge. A first limiting plate is mounted on one side of the first sliding plate. A second piston is mounted on the first limiting plate. Asecond piston shaft is mounted on the second piston. A second limiting plate is mounted on the second piston shaft. A first buffer plate is mounted on the second limiting plate. The second limiting plate is mounted on the second sliding wheel. A third piston is mounted on the second limiting plate. A third piston shaft is mounted on the third piston. A third limiting plate is mounted on the thirdpiston shaft. A second buffer plate is mounted on the third limiting plate. By adoption of the portable platform mechanism, the shoe printing quality and efficiency can be effectively improved.

The invention relates to the technical field of sewage treatment and discloses a novel sodium hypochlorite generator capable of increasing reaction rate. The novel sodium hypochlorite generator comprises a generator body and an electrolysis generating device arranged in the generator body. A fixed frame is arranged on the lower side of the generator body, a buffer box is fixedly connected to the vertical inner wall of the fixed frame through a plurality of shock absorbing springs, a buffer plate is slidably connected to the inner wall of the buffer box, the lower end of the buffer plate is connected to the bottom inner wall of the buffer box through a plurality of buffer mechanisms, the upper end of the buffer plate is uniformly and fixedly connected to a plurality of supporting blocks, the upper ends of the supporting blocks stretch out of the buffer box through openings formed in the upper end of the buffer box and are fixedly connected to the same generator body, and the upper end of the buffer plate is fixedly connected to the top inner wall of the buffer box through a plurality of buffer springs. The novel sodium hypochlorite generator can stir and mix a salt solution in an electrolytic cell fully and quickly, so that the reaction rate is increased and the novel sodium hypochlorite generator is conveniently used.

The invention discloses a household conveniently cleaned air conditioner which comprises a housing, wherein a supporting leg is mounted at the bottom end outside the housing, the housing is of a horizontally placed barrel structure and is of a hollow structure, a drain pipe is mounted at the bottom end of the housing, a valve is mounted on the drain pipe, a moving barrel is arranged in an inner space of the housing, the moving barrel is of a semi-opened barrel structure, and a driving mechanism which drives the moving barrel to rotate axially is mounted on the housing. By means of the moving barrel and a screen barrel, as the moving barrel rotates continuously, bristles arranged on the inner side can scrape dust on the screen barrel continuously and flush the dust by defrosting water, so as to play a cleaning role.

The invention relates to a crosslinked polyethylene insulated power cable, which comprises a plurality of fan-shaped wire cores which are uniformly distributed along the peripheral direction at intervals; filler rods are arranged between the adjacent fan-shaped wire cores and at the distribution center of the plurality of fan-shaped wire cores; an internal lining layer, an outer fire-resistant layer, a galvanized steel wire armor, a wrapping tape layer and an outer sheath sequentially coat the outside of the fan-shaped wire cores from inside to outside; a filler is arranged between the internal lining layer and the fan-shaped wire cores; and each fan-shaped wire core comprises a conductor in fan-shaped distribution, an inner fire-resistant layer coating the outside of the conductor, and aninsulating layer coating the outside of the inner fire-resistant layer. The filler rods are arranged between the wire cores, so that a fire caused by friction is effectively avoided, the safety of the internal structure of the cable is ensured, buffer shock absorption between the wire cores can be achieved and the crosslinked polyethylene insulated power cable has excellent bending and twisting resistance; and through the arrangement of multiple layers of fireproof materials, the heat resistance and the fire resistance of the cable are greatly improved and the personal safety and the safety of public property are ensured.

The invention discloses a high-performance connecting structure of a stone curtain wall deformation joint. The high-performance connecting structure of the stone curtain wall deformation joint comprises a stone rear plate and a stone front plate, the stone rear plate is located above the stone front plate, damping foam is filled between the stone rear plate and the stone front plate, and the stonefront plate is connected with the stone rear plate through a fixing mechanism. A mounting plate is arranged on the upper end surface of the stone rear plate, two buffering groove bodies are symmetrically arranged on the mounting plate, buffering mechanisms are arranged in the buffering groove bodies, supporting plates are connected to the two ends of the mounting plate separately through a rotation connecting mechanism, and supporting frames are arranged at the lower ends of the supporting plates. According to the high-performance connecting structure of the stone curtain wall deformation joint, when the stone front plate and the stone rear plate vibrate, sliding plates can be driven by double threaded head sliding rods to slide up and down in the buffering groove bodies to extrude limiting springs, the limiting springs are compressed or stretched, buffering and damping between the stone rear plate and the mounting plate are realized, and the anti-vibrating function is realized.

The invention discloses a four-wheel independent suspension system of power-driven wheelchairs. The four-wheel independent suspension system comprises a frame, two front wheels and two back wheels. Each of the front wheels and each of the back wheels are hinged on each of front connecting rods and back connecting rods respectively, a cross rod extending in vehicle width direction is arranged on the frame, adapter sleeves in box section structure are arranged at end portion of the front connecting rods and the back connecting rods, and shock absorbers are sleeved in the adapter sleeves. Each of the shock absorbers comprises a rectangular outer tube and a rectangular inner tube, the inner tube is arranged in the outer tube and can rotate 45 degrees opposite to the outer tube, seamed edge of the inner tube is opposite to the tube wall of the outer tube, and an elastic rubber mat is arranged between the seamed edge of the outer tube and the tube wall of the inner tube; inner tubes of the chock absorbers are sleeved on the cross rod, the front wheels and the back wheels are respectively and independently suspended on the frame via the adapter sleeves and the shock absorbers. The four-wheel independent suspension system of the power-driven wheelchairs is good in shock absorbing effect, comprehensive in shock absorbing direction and is beneficial to the miniaturization and compactness of the power-driven wheelchairs.

The invention provides a water surface aircraft model landing buffer damping device and a water surface aircraft model. The water surface aircraft model landing buffer damping device comprises a sliding plate assembly and a locking release mechanism. The locking release mechanism comprises an ejector rod, a first elastic damping part, a second elastic damping part, a clamping end part and a clamping pin assembly, wherein the first elastic damping part is arranged on the ejector rod in a sleeving manner; the second elastic damping part is arranged in a groove of the ejector rod; and the clamping pin assembly is used for being matched with the clamping end part to realize buffering and damping through the first elastic damping part and the second elastic damping part. By applying the technical scheme, the technical problem that in the prior art, the buffering and damping of an aircraft model cannot be effectively realized only by means of the buffering sliding plate is solved.

The invention provides a chemical storage device with a damping function based on chemical production, relates to the technical field of storage devices, and solves the problems that most of buffer structures in a single-position non-matching state are poor in buffer effect, and mutual cooperation of multiple buffer structures cannot be achieved and the buffering effect of the buffer structures cannot be enhanced through structural improvement. The chemical storage device with the damping function based on chemical production comprises a base. A buffering structure is installed on the base, a storage barrel is installed on the buffering structure, and a damping structure is installed on the base. A shifting block B is welded on the bottom end surface of the storage barrel, and the head end of the shifting block B is of a spherical structure; and the head end of the shifting block B makes contact with the head ends of two stress blocks B, the head ends of the two stress blocks B are each of an inclined structure, the shifting block B and the stress blocks B jointly form an extrusion structure of an elastic piece B, so that the buffering effect of the storage barrel can be further improved.

The invention discloses an independent suspension damping assembly for front wheels of a four-wheel scooter. The independent suspension damping assembly for the front wheels of the four-wheel scooter comprises a frame. The frame is provided with the front wheels; the frame is provided with adapter sleeves being of a tubular structure at both sides of a scooter width direction; dampers are respectively sheathed with the interiors of the adapter sleeves; each damper comprises an outer tube and an inner tube which are of a rectangular structure; each inner tube is arranged in the corresponding outer tube, and rotates for 45 degrees relative to the corresponding outer tube to enable the edge of the inner tube to be opposite to the wall of the corresponding outer tube; an elastic rubber mat is arranged between the edge of each outer tube and the wall of the corresponding inner tube; both ends of the inner tube of each damper are fixedly connected with suspension arms; the cantilever ends of the two suspension arms are connected by a revolving shaft; the front wheels are arranged on connecting arms of the revolving shaft; second connecting arms upwards extend on the revolving shaft towards a height direction; the second connecting arms are hinged to third connecting arms extending along the scooter width direction; the third connecting arms are hinged to the frame; and the front wheels are independently suspended on the frame by the dampers and the suspension arms. The independent suspension damping assembly for the front wheels of the four-wheel scooter has the characteristics that the damping direction is comprehensive, a damping effect is good, and the like.

The invention discloses a lateral stability reinforcement device based on a wheel hub motor and a semi-trailer. The technical solution is: a stability seat is included, and a drive arm and a support arm are rotatably connected to both sides of the stability seat, and the drive arm and the support arm are respectively about the stability The seat is symmetrical; the drive arm and the support arm are connected through a support frame, a transmission mechanism is installed on one side of the support frame, and a telescopic rod is connected between the transmission mechanism and the stability seat. The invention solves the problem that the prior art is inconvenient to support the semi-trailer of the hub motor laterally stably and reliably, buffers and absorbs the transverse mechanism of the hub motor semi-trailer, and is not convenient for the reliable connection of the reinforcing device structure, and realizes the problem of the semi-trailer of the hub motor The laterally stable and reliable support reduces the generation of resonance during vehicle driving and improves the firmness and safety of the connecting parts.

The invention provides a modular protective fence capable of being independently detached and replaced, and relates to the technical field of turnover guardrails. The modular protective fence comprises a supporting device, and a buffering part is slidably connected to the supporting device; two connecting devices are fixedly connected to the supporting device; a guardrail mounting seat is attached to the buffer part; a switch device is mounted in the middle of the guardrail mounting seat; two propelling rotating parts are connected to the guardrail mounting seat in a sliding manner; a guardrail device is fixedly connected to the guardrail mounting seat; the telescopic isolation part is slidably connected into the guardrail device, the application range is wider, meanwhile, the supporting force of a patient can be freely adjusted, the structure is more stable, the lateral impact resistance is better, modular installation is achieved, the efficiency is higher, and the problems that an existing guardrail cannot achieve adjustable cushioning damping, the application range is small, connection between guardrails is not flexible enough, and the service life is long are solved. Meanwhile, disassembly and replacement are inconvenient, and impact damping and automatic homing cannot be achieved.

The invention discloses a forging machine tool controlled by a single-chip microcomputer. The forging machine tool comprises a base, an equipment main body, an ejection block, a hydraulic rod, a damping forging table, an I-shaped slide rail, a connecting convex block and a forging block; the I-shaped slide rail is arranged at the upper end of the base; the damping forging table is arranged at theupper end of the I-shaped slide rail; the equipment main body is arranged at the upper end, near the other side, of the base; the ejection block is arranged at the upper end of the equipment main body; the connecting convex block is connected to one side of the ejection block; the hydraulic rod is arranged at the lower end of the connecting convex block; the forging block is arranged at the lowerend of the hydraulic rod; and the forging block is aligned to the upper end of the damping forging table for forging. The forging machine tool controlled by the single-chip microcomputer can adjust the plane angle according to forged objects to realize buffer damping of the forging table; and the base is assembled through different parts, so that the base can be quickly dismounted and mounted, andis convenient to move to achieve preferable carrying.

The invention discloses an independent suspension shock absorbing structure for wheels of a scooter. The independent suspension shock absorbing structure comprises a frame. Front wheels and rear wheels are respectively installed at the front end and the rear end of the frame. A cross bar extends along the scooter width direction from the rear end of the frame. The two ends of cross bar are connected with shock absorbers. Each shock absorber comprises a rectangular outer pipe and a rectangular inner pipe. Each inner pipe is arranged in each corresponding outer pipe. Each inner pipe is arranged at an angle of 45 degrees relative to the corresponding outer pipe to enable the edge of the inner pipe to face to the wall of the outer pipe. An elastic rubber pad is arranged between the edge of each outer pipe and the wall of each inner pipe. The cross bar is a rectangular bar and is inserted into the inner pipes. A connecting sleeve is sheathed on each outer pipe. A connecting bar extends rearwards from each connecting sleeve. The rear wheels are connected onto the connecting bars. The rear wheels are independently suspended on the frame through the connecting sleeves and the shock absorbers to enable each rear wheel to be independently suspended on the frame. A spring assembly which is arranged between a seat and the frame in the prior art is abandoned and the shock absorbing effect is remarkable.

The invention discloses an electric vehicle maximum speed vehicle control unit and a control method. The control unit comprises a fixed shell, wherein telescopic rods are symmetrically fixed on the side edge of the fixed shell, a box cover is fixed at the upper ends of the telescopic rods, and dustproof nets are symmetrically fixed on the box cover; a motor, which is fixed on the upper end face of the box cover, a rotating shaft is fixed at the tail end of an output shaft of the motor, and a bearing of the rotating shaft is connected to the box cover; and a fixed box, which is fixed on the lower end surface of the box cover. According to the maximum-speed vehicle control unit of the electric vehicle, the lifting type storage mechanism is adopted for achieving the mounting and sealing effects on the vehicle control unit body, and therefore the situation that the shell needs to be disassembled when the vehicle control unit body is overhauled is avoided. The structure is more convenient and simpler, and the heat dissipation mechanism is matched with the automatic dust removal mechanism, so that rapid heat dissipation can be realized. In this way, the heat dissipation effect of the vehicle control unit body is guaranteed, and the vehicle control unit body can be protected through the elastic buffer mechanism and is prevented from being damaged by external force.