31results about How to "Realize the shock absorption effect" patented technology

The utility model relates to the technical field of serving trolleys, and discloses a heat preservation serving trolley convenient for taking and placing meals, which comprises a heat preservation box, universal wheels are arranged on the lower surface of the heat preservation box, a connecting rod is arranged between every two adjacent connecting seats, and the outer surface of each connecting rod is connected with a sliding block in a sliding mode. Through the buffer structure, when the placing structure vibrates, the placing structure and the supporting plate move towards the interior of the shell, and the sliding block is pushed through the supporting rod, so that the sliding block moves on the connecting rod in the axial direction and gradually compresses the spring, the spring deforms, kinetic energy is converted into elastic potential energy, and the elastic potential energy is generated; and when the placing structure moves towards the interior of the shell, the output end of the damping telescopic rod shrinks, and when the placing structure slides upwards in the shell to reset, the output end of the damping telescopic rod is stretched, so that the springback speed of the spring is restrained, vibration generated when the placing structure resets is avoided, and the damping effect is achieved.

According to the semiconductor product processing equipment and the mist discharging system, the mist discharging fan is connected with the rack through the damping mechanism, vibration of the mist discharging fan can be effectively prevented from being transmitted to the rack, the machining precision can be improved, the damping mechanism can adopt different structures according to needs, and when a connector is adopted, the connector is connected with the mist discharging fan through the damping mechanism. The connector is connected to the top of the first supporting rod through the first damping connecting base and connected to the bottom of the second supporting rod of the rack through the second damping connecting base, the second supporting rod can effectively limit the connector, and the problem that the connector topples due to the fact that the mist discharging fan is arranged on the first side of the connector is solved; shear force borne by bolts for connecting the first and second damping connecting seats with the first and second supporting rods is reduced, and the structural stability and safety of the damping structure are effectively guaranteed. When the bracket is adopted, the structure is simple, and a two-stage damping structure is adopted, so that the vibration of the fog exhaust fan can be isolated from the rack to the greatest extent, and the influence on the main shaft is avoided.

The utility model discloses a motor home vehicle-mounted generator noise reduction fixing support, which relates to the technical field of motor home generators and comprises adjusting blocks arranged on two sides of the bottom of a vehicle-mounted generator. A position changing module is arranged on one side of the bottom of the adjusting block, a lifting plate is arranged on the inner side of the position changing module and installed in the lower portion of the vehicle-mounted generator in a hidden mode, and a plurality of damping assemblies are arranged below the lifting plate and at least used for damping and noise reduction when the vehicle-mounted generator works. The damping assembly is arranged at the bottom of the vehicle-mounted generator, unfolding and storage of the damping assembly can be achieved through the adjusting block and the transposition module, after the damping assembly is unfolded, the damping assembly is used for stably supporting the vehicle-mounted generator, and when the vehicle-mounted generator works for power generation, the damping assembly can stably support the vehicle-mounted generator. Damping and noise reduction of the vehicle-mounted generator can be achieved through the damping assembly.

The invention is suitable for the field of structural walls, and provides a steel grid wall structure provided with an energy dissipation component, which comprises edge frame columns, edge frame beams, grid components, lug plates and low-elasticity high-damping components, the edge frame columns and the edge frame beams are connected to form a frame, the lug plates are arranged on the inner sides of the edge frame columns and the edge frame beams, and the low-elasticity high-damping components are arranged on the inner sides of the edge frame columns and the edge frame beams. And the low-elasticity high-damping component is used for connecting the grid component and is arranged on the grid component. During use, the low-elasticity high-damping component is arranged in the grid component, compared with a traditional steel grid wall structure system, the steel grid wall structure system has the advantages of being clear in damage mode, concentrated in energy consumption and efficient, and effective control over a structural plasticity development area can be achieved.

The utility model discloses a kind of multi-piece sheet packaging equipment, including bottom plate, two positive plates are symmetrically arranged on the bottom plate, and two side plates are symmetrically arranged on the bottom plate, two The positive plate and two side plates are connected to form a rectangular frame, two reinforcing frames are symmetrically arranged outside the bottom plate, two firm frames are vertically and evenly arranged on the rectangular frame, a top cover is arranged on the top of the rectangular frame, and the top cover covers the opening on the top of the rectangular frame;The utility model is strengthened by setting rectangular frame in combination with reinforcing frame, firm frame and connecting block with air pipe, the stability of box is strengthened, and shock absorption and internal visual monitoring are realized;And by limiting groove, upper and lower inner clamping plate and partition plate, glass accurate limiting and flexible separation are realized, to avoid friction damage;The whole not only guarantees the integrity of glass during loading and unloading transportation, but also adapts to multi-specification products, and is conducive to recycling, improves the adaptability while enhancing the protection effect.

The utility model relates to a kind of dynamic cone balancing device of conical crusher, including ring disc and hydraulic cylinder, the four around integral moulding of ring disc has hinge seat, one end of hydraulic cylinder is hinged with hinge seat, the other end of hydraulic cylinder is hinged with dynamic cone inner wall, the bottom mouth of ring disc is inserted with bottom cover, the top mouth of ring disc is screwed with top cover, the disc body of ring disc is equipped with the inner oil passage of through inner and outer wall, the outer end port of inner oil passage is embedded with external connection pipe, the external connection pipe is communicated with hydraulic cylinder by connecting pipe and outer oil passage;By ring disc, top cover and bottom cover constitute internal cavity, by the communication internal cavity and hydraulic cylinder of inner oil passage and outer oil passage, by the damping flow of hydraulic oil, realize the upper stability of dynamic cone, reduce the vibration influence and unbalanced motion of dynamic cone, to realize the balance control of dynamic cone, and the whole device does not need external device drive, by internal hydraulic oil communication movement, realize passive balance and shock absorption.

The utility model relates to the technical field of railway assembly installation, and discloses a track joint structure capable of buffering and damping, which comprises tracks, a connecting plate is fixedly connected between two adjacent tracks, the middle part of the connecting plate is slidably connected with a buffer block, the outer wall of the buffer block is fixedly connected with a sliding block, and the sliding block is fixedly connected with the track. The outer wall of the sliding block is fixedly connected with a sleeve, the inner wall of the sleeve is slidably connected with a sliding rod, the other end of the sliding rod is fixedly connected with the inner wall of a connecting plate, the outer wall of the sleeve is in threaded connection with an adjusting ring, a damping spring is arranged on the outer wall of the sleeve, and the connecting plate is fixedly connected with a rail through a bolt. And the connecting plates are symmetrically arranged. According to the shock absorption device, the buffer block is pushed through the wheels, the buffer block pushes the sleeve and the shock absorption spring to be compressed, moving energy is absorbed, vibration energy is converted into elastic potential energy to be stored, then the elastic potential energy is slowly released after a vehicle passes through, and therefore the shock absorption effect is achieved.

The application discloses a crystal oscillator micro shock absorber, and relates to the technical field of crystal oscillator shock absorption, which comprises a bottom plate, a buffer plate and a frame body, the top of the buffer plate is connected with the bottom of the bottom plate, the top of the frame body is connected with the bottom plate, two dampers are arranged in the buffer plate at intervals, the damper comprises a damping cavity, a first piston block and a first piston rod, and damping liquid is arranged in the damping cavity. The application can guarantee the shock absorption effect of the crystal oscillator and reduce vibration. The application further discloses a use method of the crystal oscillator micro shock absorber.

The utility model provides a kind of magnetic suspension swing motor and electric clipper with dynamic balance mechanism, including base and stator assembly and swing subassembly installed in base;Swing subassembly includes swing bar, magnetically permeable steel, magnet group, first swing piece, second swing piece and shock absorber, magnetically permeable steel is installed in the back side of swing bar, magnet group is installed in the back side of magnetically permeable steel;Swing bar, first swing piece, shock absorber and second swing piece are sequentially enclosed to form quadrilateral structure, and the middle part of first swing piece and the middle part of second swing piece are fixedly connected with base;Stator assembly is fixedly installed in base, and located inside quadrilateral structure, the utility model generates attractive force and repulsive force by alternating magnetic field generated by stator assembly and front end magnet, to drive swing bar reciprocating swing, it is smaller to occupy space, and avoid the problem of wear and tear between components, vibration can be transmitted to rear shock absorber by swing piece when working, the effect of damper balancer is played, to realize vibration damping.

This invention relates to a load-holding valve. To address the incompatibility between load-holding protection functions and hydraulic damping modules in existing lifting hydraulic systems, this invention constructs a lifting hydraulic system and a loader. The lifting hydraulic system includes a hydraulic damping module, a controller, a pressure sensor, and a load-holding valve connected to the large and small chamber interfaces of the lifting cylinder control valve. The load-holding valve comprises a cone valve, a load-holding control solenoid valve electrically connected to the controller, and a damping orifice. The inlet and outlet ends of the cone valve are respectively connected to the large chamber interface of the lifting cylinder control valve and the large chamber of the lifting cylinder. The hydraulic control end of the cone valve is connected to the load port via the damping orifice and to the T-port via the load-holding control solenoid valve. The controller controls the load-holding control solenoid valve to be in a closed or open state according to whether the pressure at the large chamber interface of the lifting cylinder control valve is less than a predetermined value. This invention enables the simultaneous implementation of boom damping and load-holding functions on the loader.

This utility model belongs to the field of tunnel engineering technology, specifically relating to a tunnel entrance reinforcement structure, including an arched main support frame. The bottom of the arched main support frame is supported by a bottom platform. A buffer energy-absorbing layer is tightly attached to the outer surface of the arched main support frame. An anchoring system one is locked onto the arched main support frame. A surface protective grid is tightly attached to the outer surface of the buffer energy-absorbing layer. The surface protective grid is fastened to the surface of the rock mass at the tunnel entrance by an anchoring system two. A drainage and water collection trough is provided on the bottom platform located vertically below the arched main support frame. Through the synergistic effect of the prestressed anchoring system, the arched main support frame, and the surface protective grid, combined with the use of the buffer energy-absorbing layer, multi-dimensional stable reinforcement of the tunnel entrance is achieved, including vibration reduction, anti-stripping, and rigid support. The buffer energy-absorbing layer, together with the arched main support frame and the drainage and water collection trough, filters and guides groundwater, effectively relieving groundwater pressure.

This application relates to the field of industrial gas cylinder storage, and in particular to a gas cylinder storage rack that is easy to transport. The rack includes a metal frame and a metal door. The metal frame is a hollow structure formed by a first frame, a connecting frame, and a second frame assembly, all fixedly connected. The first frame includes an upper frame and crossbeams. Hanging plates are provided on the crossbeams for fixing the main pipe and enabling centralized control of the gas valve. The connecting frame includes columns, horizontal beams, metal plates, and crossbars to restrict horizontal and vertical displacement of the gas cylinders. The second frame includes a lower frame and a support frame. Rubber pads are laid on the surface of the support frame and fixed by positioning posts on its upper surface to cushion the gas cylinders during placement. Casters are provided at the four corners of the lower frame to reduce movement resistance, allowing a single person to push the gas cylinder storage rack for easy transport. The metal door is locked by a fixing seat on the column, a latch, and a bolt, reducing gas cylinder slippage during transport.

The utility model discloses an electric vehicle, and relates to the technical field of electric vehicles. The electric vehicle comprises a frame, a front wheel and a rear wheel, the front wheel and the rear wheel are arranged on the frame, the frame is provided with a frame structure for containing a storage battery, the front end of the frame is rotationally connected with a front cantilever, the other end of the front cantilever is connected with the front wheel, the front cantilever is provided with a connecting part located between the front wheel and the frame, and a front shock absorber is connected between the connecting part and the frame. The frame and the rear wheel are rotationally connected through a rear cantilever, and a rear shock absorber is arranged between the rear cantilever and the frame. The stability and controllability of the electric vehicle under the emergency braking condition can be optimized.

This application relates to the field of cutting tool technology, and provides a metal cutting tool with a vibration damping component, comprising a tool head and a tool shank. The tool head includes an insert and a shank, the insert being mounted on the shank, and the shank being mounted on the tool shank. A first vibration chamber is formed in the shank, and a second vibration chamber is formed in the tool shank. The first and second vibration chambers are in communication. A first damping block is disposed in the first vibration chamber, and a second damping block is disposed in the second vibration chamber. An abutment block and a first telescopic spring are disposed between the first and second damping blocks. Based on this, the first and second damping blocks move under the action of damping oil, and the abutment block and the first telescopic spring achieve a buffering effect of mutual collision, absorbing and canceling the vibration energy, thereby eliminating vibration energy and achieving the effect of vibration reduction.

The utility model relates to mechanical manufacturing technical field discloses a high -efficient heat dissipation's lathe tool tower, including control box, the outer wall fixedly connected with fixed block of control box, the inside fixedly connected with spring no.

The utility model relates to the technical field of shock absorption and noise reduction mechanisms, in particular to an excavator with a shock absorption and noise reduction mechanism, a cab shell is mounted on the rear side of the upper portion of an excavator body, a base is mounted in the middle of the upper portion of the excavator body, a shock absorption damping rod is hinged to the upper portion of the base, and a movable seat is hinged to the upper portion of the shock absorption damping rod. A rubber sleeve is mounted on the lower side of the periphery of the movable seat; the excavator has the beneficial effects that when an excavator body works, vibration can be transmitted to a cab, the vibration is transmitted to the damping rods through the base, the vibration amplitude and frequency are preliminarily weakened through stretching and retracting of the multiple sets of damping rods, and the rubber sleeves protect the internal damping rods against external influences; the movable seat and the connecting seat are connected through the air bag, the air bag can well absorb vibration, the spring rod limits the movement range of the connecting seat under the influence of vibration, and when the connecting seat collides with the movable seat under the influence of vibration, the rubber pad can effectively absorb vibration and reduce noise.

The utility model provides a traction machine damping device which comprises a base, anti-impact mechanisms, a pressing plate, a guide mechanism, a sound absorption plate, a traction machine installation plate and a flexible pad, a plurality of anti-impact mechanisms are evenly fixed to the upper side face of the base through bolts, and the pressing plate is fixed to the upper ends of the anti-impact mechanisms through bolts; a plurality of guide mechanisms are uniformly fixed between the base and the pressing plate; a sound absorption plate is fixed to the upper side face of the pressing plate through bolts, a traction machine installation plate is fixed to the upper side face of the sound absorption plate through bolts, and a flexible pad is fixed to the upper side face of the traction machine installation plate through bolts. Due to the arrangement of the anti-impact mechanism, the guide mechanism and the sound absorption plate, different degrees of vibration generated by the traction machine can be buffered when the traction machine is used, then the traction machine can be prevented from inclining when the vibration is buffered, and in addition, noise generated when the traction machine vibrates can be absorbed.

The utility model belongs to the technical field of electric cupping devices, and particularly relates to a noise reduction and silencing structure of an electric cupping device which comprises a cup and an air extractor. The air extractor is detachably connected with the tank cup and is used for sucking air in the tank cup; the air extractor comprises a round bowl-shaped outer shell, and a negative pressure air pump, a fixed support and a turbulent flow silencer are arranged in the outer shell; the negative pressure air pump is pressed and fixed to the inner bottom of the outer shell through the fixing support. A damping tail pad made of silica gel or rubber materials is arranged between the tail end of the negative pressure air pump and the outer shell. Silencing ribs are arranged on the inner wall of the outer shell; and the turbulent flow silencer is mounted at an exhaust port of the negative pressure air pump. According to the scheme, parts such as the shock pad, the silencing ribs and the turbulent flow silencer are adopted, and noise reduction and silencing can be effectively achieved on the premise that operation parameters of the negative pressure air pump are not reduced, the use experience feeling of consumers is not affected, heat dissipation of the air pump is not affected, the service life is not affected, and the size and weight are not increased.

The utility model discloses a movable bearing platform and contain the human specimen transport vehicle of this bearing platform relates to human specimen bearing platform technical field, this movable bearing platform includes the protection box, the top of protection box is equipped with the box cover, the bottom of protection box even fixedly connected with the support leg, the inside of support leg is provided with the movement subassembly, the utility model discloses through the cooperation of upper shock absorber, lower shock absorber and fixed frame, has reached the effect of bearing platform fixed and shock attenuation, through the fixed frame fixed support leg, avoid the transport vehicle body when moving, and the protection box appears the displacement, and, through the cooperation of upper shock absorber and lower shock absorber, can the vibration of transport vehicle body in the transportation process produce absorption, avoid the human specimen in bearing platform and be damaged, and then realize the effect of fixed and shock attenuation.

This utility model discloses a shock absorption structure for unmanned aerial vehicles (UAVs), relating to the field of UAV shock absorption. It includes an adapter PCB, with small shock-absorbing columns fixed to the UAV's flight control board on its inner wall. Four-legged silicone pillars are fixedly connected to the top of the adapter PCB, and IMU sensors are mounted on the tops of these pillars. A counterweight is located on one side of the four-legged silicone pillars at the top of the adapter PCB, used to increase the overall module's shock absorption. The four small shock-absorbing columns, the four-legged silicone pillars, the IMU sensors, and the counterweight are mounted on the adapter PCB, increasing its weight. The other ends of the four small shock-absorbing columns are fixed to the UAV's flight control board. When the UAV is operating, the four small shock-absorbing columns provide overall module shock absorption, effectively reducing the shock for the adapter PCB and the IMU sensors.

The utility model discloses a kind of high mountain wind power transmission line engineering pile stable support mechanism, belong to wind power transmission line engineering technical field, comprising: wind power transmission line construction area, pile body foundation pit, foundation pit support component, huazi shape steel sheet, engineering pile body and support buffer assembly, support buffer assembly is set between huazi shape steel sheet peripheral side outer wall and foundation pit support component inner wall, so that external vibration energy can be effectively absorbed and released, hydraulic buffer damper and buffer spring synergistic effect, dynamic shock absorption and elastic support function are realized, the effect that prevent the resonance, displacement or damage of engineering pile body due to wind load, earthquake etc. External force is achieved. The utility model entire high mountain wind power transmission line engineering pile stable support mechanism not only has excellent bearing performance, also have good buffer shock absorption capacity and geological adaptability, improve wind power transmission line foundation structure long-term stability and safety reliability.

An anti-vibration stable type freezer special for an exposure machine, the present application relates to the technical field of precision refrigeration equipment, the base is fixedly arranged on the foundation, the freezer body is arranged on the base, the horizontal support mechanism is arranged on the base, the lifting support mechanism is arranged on the horizontal support mechanism, the freezer body is arranged on the lifting support mechanism, the damping shock absorption mechanism is arranged on the base, and the damping shock absorption mechanism is arranged in cooperation with the horizontal support mechanism and the lifting support mechanism;The device is cooperated with damping by horizontal support, lifting support and brake damping mechanism, wherein the brake damping can realize multidirectional adjustable friction energy dissipation, effectively inhibit vibration transmission, and keep the freezer horizontal and stable, significantly improve the operation precision and yield of the exposure machine.

The utility model relates to freeze-drying ball storage technical field, multi -passageway molecular marker reagent partial shipment freeze-drying ball storage box, including material hopper, the recess no.

The utility model discloses a solid state disk with a chip protection structure, which comprises an installation assembly, a chip body, a circuit board, a shell, a cover plate, a fixing piece, a butt joint piece, a clamping piece and a dismounting piece, the chip body is fixedly connected to the top of the circuit board, the chip body and the circuit board are both located in an inner cavity of the shell, and the chip body is fixedly connected to the top of the circuit board. The cover plate is arranged at the top of the shell, the fixing pieces are fixedly connected to the bottom of an inner cavity of the shell and matched with the circuit board, the butt joint pieces are located on the two sides of the circuit board, the chip body and the circuit board can be installed in the shell through the fixing pieces, and the cover plate and the shell can be connected and fixed through the clamping pieces. In the process, bolts are not used, tools such as screwdrivers are not needed for assembling, assembling is convenient, and meanwhile damping and heat dissipation of the chip body and the circuit board can be achieved through the damping piece and the heat dissipation piece in the connecting and fixing process of the shell and the cover plate.

The utility model relates to the technical field of motor end cover structures, in particular to a shaded pole motor end cover structure installed in an embedded mode, which comprises an end cover main body and is characterized in that the end cover main body is formed by combining an upper end cover, an annular base and a lower end cover, and the outer walls of the tops of the upper end cover and the lower end cover are both provided with blade type heat dissipation structures distributed in a radial mode. The side face of the upper end cover is provided with an axially-protruding embedded connection part, a plurality of fixing bolts are evenly distributed at the joint of the upper end cover, the annular base and the lower end cover, and a rotor connection shaft is arranged in the center of the outer wall of the top of the lower end cover. According to the embedded shaded pole motor end cover structure, the assembly flexibility and the maintenance convenience are remarkably improved through the modular layered design (the upper end cover, the annular base and the lower end cover are combined), and damaged parts are allowed to be independently replaced without overall disassembly; efficient airflow circulation is formed through the synergistic effect of the blade type heat dissipation structure and the annular heat dissipation grooves, and the running temperature of the motor is effectively reduced.

The utility model relates to prefabricated building technical field discloses prefabricated building beam column joint connecting piece, including beam column, the outside fixed connection of beam column has fixed frame, the periphery of fixed frame all is fixedly connected with connecting block, the outside sliding connection of connecting block has H type steel, the outside sliding connection of H type steel has bolt, the outside sliding connection of H type steel has damping assembly, damping assembly includes rotating block, the inside rotation of rotating block is connected with rotating board, the top fixed connection of rotating board has spring, the top fixed connection of rotating board has damper, the outside sliding connection of H type steel has connecting plate. In the utility model, realize the installation effect of H type steel, rely on damper and spring synergic energy consumption, have the advantage that assemble convenient, maintain convenient, wide application range and can optimize the whole life cycle cost.

The utility model relates to the technical field of medical instruments, in particular to a protective device for an intracranial pressure ultrasonic probe, which comprises a handle mounted on one side of the probe, a protective mechanism for buffering and damping falling impact force of the probe is arranged on the probe, and an anti-scratch mechanism for preventing the surface of the probe from being scratched is arranged on the probe. According to the utility model, when the impact force generated by the falling of the probe presses the connecting arm to rotate on the double-end hinge seat and stretches the buffer spring, the impact force is absorbed and slowly released by utilizing the elasticity of the buffer spring, so that the displacement and damage of elements in the probe caused by overlarge impact force are avoided; and the sliding rod is driven to pull the piston block to slide towards the outer side of the sliding sleeve, and as the sliding sleeve is filled with hydraulic oil, the hydraulic oil is extruded to flow through the liquid flow hole in the piston block along with the sliding of the piston block towards the outer side, flow resistance is generated, and the vibration capacity is consumed and weakened, so that the shock absorption of impact force is realized, and the probe is better protected.

The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit multi-layer cavity floating damping foundation which comprises a shockproof tray installed on an air conditioner installation position, the shockproof tray comprises a bottom plate body and a shockproof rubber surrounding edge, the bottom plate body and the shockproof rubber surrounding edge form a containing groove, and a damping pad arranged in the containing groove. The shock pad comprises an upper supporting layer, a lower supporting layer and a neck connecting layer, a closed cavity is formed in the lower supporting layer, the closed cavity is communicated with the outside through a necking channel of the neck connecting layer, the floating weight layer is arranged above the shock pad, and the flexible limiting piece is arranged on the inner side of the anti-seismic rubber surrounding edge. According to the invention, the shockproof tray integrating waterproof and mold functions is arranged, and the multilayer gradient shock pad embedded with the Helmholtz resonant cavity and the damping particles is arranged in the shockproof tray, so that the dual purposes of broadband shock absorption and long-acting waterproof are achieved.

The invention relates to the technical field of wind power generation, and particularly discloses a ducted multi-stage turbo-charging type windmill power generation device and application of the ducted multi-stage turbo-charging type windmill power generation device. The turbine at least comprises two stages of turbines; the rotary supporting mechanism is used for supporting the ducted windmill and achieving rotation of the ducted windmill and comprises a base, a rotating piece, a supporting piece, a radial shrinkage assembly, a damping assembly and a first driving assembly. The rotating piece is circumferentially and slidably arranged at the top of the base, and a gap is formed between the bottom of the rotating piece and the top of the base; the top of the supporting piece is connected with the ducted windmill, and the bottom is connected with the rotating piece. The radial contraction assembly is used for driving the damping assembly to insert into or move out of the gap; the first driving assembly is used for driving the rotating part to slide. The ducted windmill can rotate by any angle within 360 degrees in the horizontal direction through sliding of the rotating piece so as to adapt to different wind directions, and meanwhile damping is achieved.

The utility model relates to the technical field of bicycles, and discloses an efficient heat dissipation bicycle suspension fork which comprises a fork barrel, the top end of the inner wall of the fork barrel is connected with a stroke pipe in a sliding mode, the bottom end of the front side of the fork barrel is fixedly connected with fork feet, and a fixing column is connected between every two adjacent fork feet in a sliding mode. Limiting rings are in threaded connection with the left side and the right side of the outer wall of the fixing column, a sliding ring is fixedly connected to the middle of the outer wall of the stroke pipe, a first fixing ring is fixedly connected to the inner wall of the fork barrel, a spring is fixedly connected to the top end of the first fixing ring, a damping block is arranged at the bottom end of the inner wall of the fork barrel, and a heat dissipation mechanism is arranged on the outer wall of the fork barrel. When the bicycle runs on an abrupt slope, the stroke pipe and the sliding ring move downwards due to vibration of a bicycle body, the spring is pressed and deformed to generate elastic force, part of vibration is counteracted, redundant vibration is eliminated through the damping block, and therefore damping is achieved, the situation that the bicycle body is unstable due to the fact that the road surface is too steep is avoided, and the service life of the bicycle body is prolonged.