245 results about "Elastic energy" patented technology

The invention belongs to the technical field of wearable exoskeletons, and particularly relates to a forearm power assisting device, a forearm power assisting method and an upper limb power assisting system. The forearm power assisting device comprises an angle transmission mechanism, an angle amplification mechanism, an elastic energy storage mechanism and a tension output mechanism; wherein the buckling angle of the front arm is transmitted through the angle transmission mechanism, and after the buckling angle is amplified through the angle amplification mechanism, the elastic energy storage mechanism is driven, so that the flexible traction cable outputs pulling force linked with the buckling angle of the front arm. The forearm power assisting device is a system based on the pure mechanical transmission and energy storage principle, forearm flexion and extension angle changes can be directly converted into self-adaptive tension linked with the forearm flexion and extension angle changes, and therefore forearm muscle fatigue in long-time fine operation can be effectively relieved without an external power source.

The present application belongs to the field of rock burst risk assessment of deep rock engineering, and particularly relates to a quantitative evaluation method for rock burst tendency of surrounding rock under multiple disturbances, which comprises the following steps: obtaining the distribution depth of excavation damage zone through acoustic testing, and obtaining the average wave velocity of rock mass in the range of original rock zone; obtaining the geological strength index and disturbance factor through the average wave velocity; further obtaining the residual elastic energy of surrounding rock based on the geological strength index and disturbance factor, and evaluating the rock burst tendency of surrounding rock through the residual elastic energy of surrounding rock; the acoustic testing points of surrounding rock are unchanged, and the rock burst tendency of surrounding rock is evaluated after each excavation footage of the working face is completed, until the distribution characteristics of rock burst tendency no longer change obviously, which is taken as the long-term evaluation result of rock burst tendency of surrounding rock. The quantitative evaluation formula of rock burst tendency of surrounding rock considers the rock mass structure effect, which is reflected in the geological strength index, and considers the excavation disturbance effect, which is consistent with the actual situation of engineering construction process, and has strong practicability.

The utility model relates to the technical field of energy storage, in particular to a linear elastic energy storage assembly. The linear elastic energy storage assembly comprises an energy storage group, the energy storage group comprises a plurality of elastic energy storage units, each elastic energy storage unit comprises two elastic strips, the two ends of each elastic strip are movably connected, the elastic energy storage units are arranged in a row, and in every two adjacent elastic energy storage units, the elastic strips are arranged in the row. The middle portions of the two elastic strips close to each other are movably connected, and the two elastic strips of the elastic energy storage unit can be stretched to be round or oval. The device has the advantages of being simple and reasonable in structural design, high in stretch rate and capable of storing large elastic potential energy.

In a method, pose information of a cloth model is determined. A background grid is obtained based on uniformly dividing a two-dimensional plane that includes the cloth model. First motion information of each grid vertex indicating a motion state of each grid vertex at a first moment is acquired. An elastic energy function of the background grid indicating elasticity of the cloth model based on an elastic energy parameter is acquired. A target function indicating one or more constraints of the elastic energy function and the first motion information of each grid vertex is acquired. Second motion information of each grid vertex indicating a motion state of each grid vertex at a second moment later than the first moment is obtained based on the target function. First pose information of the cloth model is determined based on the second motion information of each grid vertex.

The invention discloses an environment-friendly wide-temperature-range adhesive tape with a high-toughness structure and a preparation method of the environment-friendly wide-temperature-range adhesive tape, and belongs to the technical field of high-performance composite materials. The core-shell particles with the soft core-hard shell structure are added, the core layer is composed of the elastic polymer with the glass transition temperature lower than-20 DEG C, the shell layer is the rigid polymer with the glass transition temperature higher than 60 DEG C, and the wide temperature range self-adaption of the high-toughness structure adhesive tape to summer and winter environments is achieved through the synergistic effect of temperature-sensitive characteristics. In a summer high-temperature environment, the rigid shell layer plays a microscopic scaffold effect and a physical cross-linking strengthening effect and inhibits flowing permeation of a sizing material to micropores of the release paper. And in a low-temperature scene in winter, the elastomer of the core layer still maintains high elasticity, can absorb and dissipate impact energy, serves as a microscopic pressure head, enhances mechanical interlocking and Van der Waals' force effects, and rapidly establishes sufficient initial adhesive force. And the contradictory problems of constructability and reliability of difficult paper uncovering in summer and poor adhesion in winter of the structural adhesive tape are integrally solved.

The invention provides a cleaning assembly and cleaning equipment, and relates to the technical field of cleaning equipment. The cleaning assembly comprises a base used for being fixedly connected with cleaning equipment; the outward swinging support arm comprises a first end and a second end, and the first end is rotatably connected with the base; the cleaning head is rotatably connected with the second end of the outer swinging support arm; the elastic energy storage part is arranged between the cleaning head and the outer swing support arm, and is used for enabling the cleaning head to have a trend of rotating outwards relative to the outer swing support arm; the guide piece is fixed on the cleaning equipment; when the outward swinging support arm moves from the retracting position to the unfolding position, the included angle between the cleaning head and the outward swinging support arm is kept within a first included angle range under the constraint of the guide piece. And when the outward swinging support arm swings to a critical position where the cleaning head is separated from the constraint of the guide piece, the cleaning head swings outwards to a larger second included angle relative to the outward swinging support arm under the action of the elastic energy storage piece. The cleaning assembly can solve the problems that a side brush is short in extending distance, cannot go deep into corners such as the bottom of furniture and can clean many dead corners.

The utility model discloses wind power compensation device based on elastic energy storage technology, including support frame and first motor, first motor is installed on support frame, still include support casing, energy storage mechanism, power generation mechanism and intercommunication mechanism, support frame one side is provided with a plurality of support casing, energy storage mechanism sets up in support casing, is used to carry out energy storage to electric power, power generation mechanism sets up in a side of a plurality of support casing, is used to release the electric power after energy storage, intercommunication mechanism sets up between first motor and energy storage mechanism, is used to with the mechanical energy of first motor output is transported to energy storage mechanism, this wind power compensation device based on elastic energy storage technology is used to solve the problem that the wind energy resource is difficult to stabilize in prior art in the background art and influences the stability of electric power system.

The invention discloses a vibration and noise reduction transmission system and rotary excavating power equipment, and relates to the technical field of power transmission, the vibration and noise reduction transmission system comprises a driving device, a driven device and a transmission device, the transmission device is in contact connection with the driving device and the driven device, and the transmission device comprises a pressurizing part and a vibration reduction part; the pressurizing part is a hard part and is used for power transmission, the vibration reduction part is an elastic energy absorption part and is used for generating elastic deformation when the pressurizing part transmits power, and the vibration transmission frequencies of different positions of the vibration reduction part are different. Buffering of collision is achieved through elastic deformation, noise attenuation is achieved from the interior of a sound source, the noise reduction efficiency is improved, vibration energy is transmitted through an elastic structure, fatigue damage to parts is avoided, the force transmission performance and the noise reduction requirement can be considered, the vibration transmission frequencies of different positions of the vibration reduction part are different, the fixed frequency is eliminated and stabilized, and mechanical waves are isolated.

This application relates to a mechanism for automatically opening a roller shutter door (20) in an emergency, comprising: a roller (21), which is a hollow cylindrical roller, including at least one first positioning hole (211), the first positioning hole being disposed at one end of the roller; a rotating shaft (22), the diameter of which is smaller than that of the roller (21), which can rotate with the roller (21) and protrudes from both ends of the roller to form two rotating ends (222); at least one spring (24), one end (241) fixed on the rotating shaft (22), and the other end (242) fixed on the inner surface of the roller (21); when the rotating shaft (22) rotates relative to the roller (21) in the opposite direction of the roller shutter door body, the spring (24) rotates back to generate elastic energy storage; an elastic energy storage fixing unit (25), disposed on the rotating end (222) of the rotating shaft (22), and the roller (21) is provided with a first positioning hole (211) for fixing the elastic energy storage; and a starter is activated to release the elastic energy storage, thereby ensuring the efficiency of automatic opening of the roller shutter door.

The invention provides a self-hammering grounding drill rod for grounding maintenance, and belongs to the technical field of grounding maintenance. A self-hammering grounding drill rod for grounding maintenance comprises a grounding drill rod body, a connecting disc and a circular ring handrail. One end of the grounding drill rod is spine-shaped, and the other end is coaxially and fixedly connected with the bottom of the connecting disc; an energy storage hammer is arranged outside the limiting sliding rod in a vertical limiting sliding sleeve manner; cylindrical protruding blocks matched with the sliding ways are arranged on the two sides of the energy storage hammer in a protruding mode. The partial width of the slideway in the vertical direction is greater than the diameter of the bump; the energy storage hammer accumulates energy through an elastic energy storage part arranged between the energy storage hammer and the bearing assembly; and a protective cover is sleeved outside the power rotary drum. The top of the power drum penetrates through the protective cover and is in transmission connection with the power output end of the gear motor. According to the invention, continuous low-power rotary input is converted into axial energy storage impact, so that the grounding drill rod can vertically hammer and penetrate into the ground, the labor intensity is reduced, the single-person operation efficiency is improved, and the safety risk generated by swinging a hammer by a traditional operator during construction is also eliminated.

Disclosed is a hand-and-wrist accessory device formed by an elasticated glove, wherein the ends of the fingers and the end of the wrist comprise an internal elasticated silicone layer that acts as a mechanical securing element for securing to the skin, these securing elements being connected to rigid structures connected to elastic elements, transmitting elastic energy from the wrist to a central floating piece on the dorsal carpus, where it is distributed to each finger terminal, the elastic elements being guided by rigid pieces disposed in the paths extending from the central piece to the finger terminals, to ensure the correct alignment thereof. These external elements have reciprocal securing elements to generate continuity from the wrist terminal to the finger or digit terminals. Cushioned elements are disposed on the palm to redistribute pressure in the wrist areas.

The invention relates to the technical field of geotechnical engineering, and discloses a staged energy dissipation and shock absorption type anchor rod reinforcing device which comprises a first reaming section, a second reaming section and an anchoring section which are arranged on a reinforced rock mass in sequence, the first reaming section is provided with an anchor rod extending towards the second reaming section, and the anchoring section is provided with an anchoring structure connected with the anchor rod. The outer side of the anchoring structure is coated with a concrete anchoring layer located on the anchoring section, and a first blocking piece used for blocking the concrete anchoring layer is arranged between the anchoring section and the second reaming section. The vibration stress buffering strength in the anchor rod reinforcing process is improved; the vibration stress of the anchor rod can be released in a multi-time elastic energy dissipation and radial conversion mode, fatigue of a single component is avoided, and the multi-time vibration impact effect can be resisted; the plugging operation of grouting reinforcement slurry can be achieved, the grouting reinforcement effect is improved, slurry leakage is avoided, the anchor rod reinforcement strength is improved, and the safety of an anchor rod reinforcement project is improved.

The utility model belongs to the field of metal structure engineering, and particularly relates to a high-strength and impact-resistant aluminum material structure which comprises a main body frame and a deformable supporting assembly, the main body frame is a long-strip-shaped aluminum strip with the length larger than or equal to 5 meters, and a double-layer gradient reinforcing rib assembly is arranged on the surface of the long-strip-shaped aluminum strip. A reinforcing seat in a deformable supporting assembly is matched with a first mounting groove in the side face of a long-strip-shaped aluminum strip, after matching of the reinforcing seat is completed, a limiting bolt penetrates through a limiting hole so that the reinforcing seat and the long-strip-shaped aluminum strip can be locked and matched, and after locking matching is completed, a mounting cushion block is mounted in a second mounting groove; a positioning bolt penetrates through a positioning hole to lock and match an installation cushion block and a long-strip-shaped aluminum strip, a connecting rod in a deformable supporting assembly rotates around a hinged joint to deform, an elastic energy absorption element absorbs impact kinetic energy and converts the impact kinetic energy into elastic potential energy, meanwhile, longitudinal reinforcing ribs on the surface of the connecting rod restrain buckling deformation, and multi-stage energy dissipation is achieved.

This invention discloses a resilient bidirectional metal hard-seal butterfly valve, relating to the field of butterfly valves, and solving the problem of insufficient sealing performance in high-pressure media environments. The valve seat assembly includes a first resilient sealing ring and a second resilient sealing ring. Both the first and second resilient sealing rings have a "J"-shaped cross-section and include a floating portion and an elastic portion, the elastic portion being arc-shaped. The floating portions of the first and second resilient sealing rings are tightly fitted together, and their elastic portions extend in opposite directions and respectively seal against the butterfly plate. By utilizing the elastic energy storage and bidirectional extension of the resilient sealing rings, a sealed fit is maintained with the butterfly plate sealing surface at all times, improving both forward and reverse sealing performance. This is sufficient for high-pressure media environments and prevents excessive hard sealing from causing wear on the sealing surface, solving the sealing problem that occurs during bidirectional impact of the media on the butterfly plate.

The utility model relates to the technical field of anti-misplug junction boxes, and discloses a simple surrounding type anti-misplug junction box, which comprises a shell assembly, connecting assemblies and main body assemblies, the connecting assemblies are distributed in a matrix and mounted on the inner wall of the shell assembly, and the main body assemblies are distributed in a matrix and mounted in the shell assembly; the connecting assembly is arranged, explicit design of the inlet mark and the outlet mark is facilitated, the device cost is reduced, the device is simple and easy to implement, recognition can be achieved only through human eyes, the sealing ring is made of rubber materials, good elasticity and rebound resilience are achieved, irregular positions on the sealing surface can be effectively filled, and the reliable sealing and dustproof effect is achieved; due to the arrangement of the outer shell and the cover body, good glossiness can be achieved, coating and printing are easy, a good appearance effect can be obtained, the appearance requirements of most products can be met without additional surface treatment, and the electric shock can be effectively prevented while good strength and durability are achieved.

The present application belongs to the technical field of anti-collision wall, and particularly relates to an energy-absorbing assembled anti-collision wall and a mounting method thereof. The anti-collision wall comprises a base, a wall body slidingly connected to the base, an elastic energy-absorbing assembly arranged on a collision surface of the wall body, a damping energy-dissipating assembly connecting the base and the wall body, and a climbing-preventing intercepting assembly integrated in the wall body. The system is equipped with a multi-source data acquisition and processing assembly, and through spatiotemporal data fusion of far-field radar prediction and near-field contact sensing, an impact feature vector is constructed and a hierarchical control instruction is generated. In operation, for low-energy-level impact, the elastic assembly is used for resetting and energy absorption; for medium and high-energy-level impact, the wall body is controlled to slide, and the kinetic energy is dissipated through the variable-damping mechanism of the damping energy-dissipating assembly; and for high-risk climbing danger, the climbing-preventing intercepting assembly is driven to instantaneously expand and lock. The present application effectively solves the problems that the traditional guardrail cannot simultaneously consider buffering and rigid blocking, and the large vehicle climbing interception fails.

The invention provides a contact mechanism and a change-over switch, and relates to the low-voltage electrical field. The contact mechanism comprises a first static contact, a second static contact, a moving contact assembly, a driving assembly and an elastic energy storage piece, one end of the elastic energy storage piece is connected with the moving contact assembly, and the other end of the elastic energy storage piece is rotationally connected with a shell of a change-over switch; the driving assembly can drive the elastic energy storage part to rotate and store energy, and when the elastic energy storage part rotates to a preset point, the elastic energy storage part can release energy and drive the moving contact assembly to rotate, so that the moving contact assembly is switched on with the first static contact or the second static contact. According to the contact mechanism, rapid opening and closing between the moving contact and the static contact can be realized through the energy storage and release processes of the elastic energy storage member, and the speed and reliability of the circuit conversion process are improved.

The utility model relates to the technical field of bearings, and provides a rubber combined needle roller bearing for an automobile steering system, which comprises a stamping outer ring, a needle roller body is arranged inside the stamping outer ring, a retainer is arranged outside the needle roller body, a bearing outer sleeve is arranged outside the stamping outer ring, and the bearing outer sleeve is sleeved outside the stamping outer ring. The stamping outer ring is fixedly connected with the bearing outer sleeve, an outer sleeve framework is annularly arranged at the corner of one side of the bearing outer sleeve in a sleeving mode, the bearing outer sleeve is attached to the outer portion of the stamping outer ring, and a connecting frame is fixedly connected to one side of the outer sleeve framework. Damping and noise reduction can be effectively achieved, corrosion resistance and abrasion resistance are improved through the arranged outer sleeve framework, the outer sleeve framework is tightly combined with the bearing outer sleeve, and a stable supporting structure is provided.

The embodiment of the invention provides an anchor implanting device and an anchor. The anchor implanting device comprises a first sleeve, a second sleeve, a push rod assembly, a firing pin assembly and a driving assembly, wherein the first sleeve and the second sleeve are nested; an accommodating cavity is formed in the first sleeve; the second sleeve penetrates through the near-end opening and extends into and out of the containing cavity. The push rod assembly comprises a push rod and a push rod cylinder extending out of the cavity and is used for installing an anchor. The driving assembly comprises a first elastic piece and a rammer, and the firing pin assembly is arranged between the rammer and the push rod cylinder. During operation, the second sleeve is pressed to compress the first elastic piece to store energy, the rammer is released to impact the firing pin, and the push rod is pushed to nail the anchor into a living body. The first sleeve and the second sleeve are nested, so that the structure is compact, and holding and accurate operation are facilitated; the push rod cylinder ensures linear implantation, and the precision is improved; the elastic energy storage and burst release impact mode ensures that the anchor is stably and reliably implanted, the slipping risk is reduced, and the anchor is suitable for arthroscopic minimally invasive surgery.

The invention provides a tree chip ejecting mechanism which is arranged on a rubber tapping machine body and comprises a tool bit driving part and a tool rest assembly. The tool bit driving part is provided with an elastic energy storage device, and the tool bit driving part slides to extrude the elastic energy storage device to store elastic potential energy; the tool rest assembly comprises a tool bar and a tool bit, and one end of the tool bar is movably connected with the tool bit. Wherein the elastic energy storage device and the cutter bar are correspondingly arranged, and after rubber tapping operation is completed, the cutter bar is impacted by releasing pre-stored elastic potential energy, so that the cutter head shakes to pop out attached tree chips. The rubber tapping tool bit cleaning device solves the problem of how to quickly clean the rubber tapping tool bit after rubber tapping every time so that the tool bit can be accurately attached to a tree trunk in the subsequent rubber tapping process.

The utility model relates to an insulating spacer with good sealing performance, which comprises a sealing body, an elastic body and a spacer body, the elastic body is arranged on the spacer body, the sealing body is abutted against the elastic body, the spacer body comprises a rubber layer, a first protective layer and a first metal layer, and the first protective layer is arranged on the rubber layer. The outer surface of the first metal layer is coated with the first protective layer, and the rubber layer is arranged on the surface of the first protective layer in a hot pressing mode. According to the insulating spacer with the good sealing performance, the first metal layer is made of the high-strength steel, the tensile strength of the insulating spacer can be guaranteed, the first protective layer is the polytetrafluoroethylene layer, and the polytetrafluoroethylene material has excellent chemical stability, corrosion resistance, sealing performance, high lubrication non-stick performance, electrical insulating performance and good anti-aging endurance; according to the pipeline sealing device, the sealing requirements of different pipelines are met, the bolts penetrate through the mounting holes to be fixed to the pipelines, and due to the fact that rubber materials have good compression resilience performance, good sealing performance can be provided.

A kind of wind tunnel model launching test system and test method belong to model wind tunnel dynamic test technical field.Solve the problem that cannot give consideration to gravity launching and with initial velocity launching function in prior art.Technical points: tail brace bending knife is arranged on wind tunnel test section, tail brace transmission is arranged on tail brace bending knife, test model and tail brace transmission are connected by tail brace support rod, the top of launching model is fixedly connected with test model, binocular vision position measuring system is arranged outside wind tunnel test section;elastic energy-absorbing protective pad is arranged on the wall of wind tunnel test section, blocking protection net is arranged behind tail brace bending knife.The present application realizes the switching of force direction and the adjustment of launching speed by electromagnetic control, and the launching action is responsive and controllable, and the high-speed camera is used to record the time sequence curve of the position and posture of the launching model, to provide complete and accurate dynamic data support for wind tunnel test.

The invention discloses a trampoline and elastic system. The trampoline structure is novel and reasonable, the two ends of the elastic member are supported by vertical support units, and the elastic member and the elastic support both have elastic energy storage characteristics. The invention makes full use of the bending elastic energy storage characteristics of the elastic member and the excellent elastic energy storage characteristics of the elastic support, which not only significantly improves the elastic performance of the trampoline as a whole, increases the lift range of the elastic member, eliminates the friction noise generated when the elastic member rises and falls, but also eliminates the adverse effects on the support caused by the bending of the elastic plate, the turning angle of the two ends of the supported elastic plate, and the change of the horizontal distance between the two ends of the supported elastic plate. The human body or other objects can make vertical up-and-down movement in the middle of the elastic member by using the elastic deformation of the elastic member and the elastic support, which is beneficial to the physical training, fitness, entertainment and rehabilitation of people of different ages. The elastic system has all the characteristics of the above-mentioned trampoline and will not be described here.

The utility model discloses a waterproof and dustproof structure of wearable equipment, and relates to the technical field of wearable equipment, the waterproof and dustproof structure comprises an equipment body, the outer side of the equipment body is fixedly provided with a first rubber watchband and a connecting ring, the top of the equipment body is fixedly provided with a display screen, and the outer side of the equipment body is provided with a charging slot. The top of the device body is provided with a protection structure, the protection structure comprises a fixing ring, the fixing ring is arranged above the device body, according to the waterproof and dustproof structure of the wearable device, through the elasticity of an elastic block, after the elastic block is inserted, the elastic block and an arc-shaped clamping block are reset, and therefore the arc-shaped clamping block is clamped into a limiting groove; and the display screen is effectively protected through the fixing frame and the glass cover plate, the situation that water and dust enter gaps of the display screen, and consequently the equipment is affected and damaged is prevented, and the practicability of the structure is effectively improved.

The utility model relates to the technical field of injection molding, in particular to a needle valve type hot runner assembly which comprises a main body, and the side surface of the main body is fixedly connected with a valve body assembly; the valve needle is controlled through stretching of the electric control telescopic rod, vertical movement of the valve needle in the valve bin is achieved, opening and closing of the pouring gate are adjusted, accurate movement of the valve needle, control over the opening and closing time of the pouring gate and reduction of salivation and dripping phenomena can be achieved through cooperation with the PLC, the integrated design is adopted, the number of parts is reduced, and the production cost is reduced. The rubber sealing ring has good elasticity and can generate uniform elastic deformation at the joint, so that the rubber sealing ring is tightly attached to the contact surface of the driving mechanism and the valve bin, melt or a cooling medium is effectively prevented from leaking, the rubber material can adapt to certain temperature and pressure changes, and the service life of the valve is prolonged. Even if the temperature rises or the pressure fluctuates in the working process of the hot runner system, the rubber sealing ring can still keep good sealing performance to ensure the stability of the system.

The utility model provides an actuating device and projection equipment, and relates to the technical field of optical equipment. The service life of the actuating device can be prolonged, and the reliability of the actuating device can be improved. The actuating device comprises a base, a support and a driving assembly. Wherein the support comprises a bearing part and a deformation part, at least one part of the deformation part has elasticity and can generate elastic deformation, the bearing part is arranged on the base through the deformation part, and the bearing part is used for arranging an optical element; at least two sets of driving assemblies are arranged between the base and the bearing part in the circumferential direction of the bearing part. The actuating device is used for driving the optical element to move.

The utility model provides a damping device and elevator equipment, the damping device comprises a first shell, a second shell and an elastic energy absorption part, the elastic energy absorption part is stacked between the inner wall of the first shell and the inner wall of the second shell, the damping device further comprises at least one limiting assembly, the limiting assembly comprises a limiting mounting piece and at least one fixed connecting piece, and the limiting mounting piece is fixedly connected with the fixed connecting piece. At least one strip-shaped hole is formed in the limiting installation part, the second shell is provided with a connecting structure, and the fixed connecting part penetrates through the strip-shaped hole and is fixedly connected with the connecting structure on the second shell so that the limiting installation part can be fixed to the second shell. The limiting installation piece and the first shell are arranged at intervals in the stacking direction of the first shell, the second shell and the elastic energy absorption part, and a preset included angle is formed between the extending direction of the strip-shaped hole and the stacking direction. According to the elevator damping device, the first shell and the limiting installation piece make contact with each other when the pressure load borne by the damping device is too large, the rollover risk is avoided, and the operation safety of elevator equipment is guaranteed.

The invention discloses a bridge net type interception anti-collision device, relates to the technical field of bridge safety protection, and provides the following scheme that the bridge net type interception anti-collision device comprises a fixing block, and further comprises a buffer mechanism which is arranged on the outermost side of the fixing block and has the core function of absorbing initial collision energy through self deformation and structural movement when a ship makes primary contact with the device, and first-stage buffer protection is achieved, and the impact force peak value is reduced. By means of a three-stage elastic energy absorption structure of the buffering mechanism, the speed reducing mechanism and the traction mechanism, stepped attenuation of impact force can be achieved, the attenuation rate of the device to the impact force is reduced, the phenomenon that a pier is damaged due to too large stress is effectively avoided, meanwhile, the arc-shaped buffering plates can be designed in a matched mode according to the size of the pier, surrounding protection is formed, and the service life of the pier is prolonged. And the limitation of single-point protection of a traditional flexible device is overcome, comprehensive protection of the pier is achieved, key components are all made of high-strength steel, the service life is guaranteed, and the later maintenance cost is greatly reduced.

The utility model discloses an engineering seat anti-skid wear-resistant seat surface material, which comprises an anti-skid layer, an enhancement layer, a shock absorption layer and an absorption layer, the upper surface of the anti-skid layer is provided with a bionic shark layer structure, the shock absorption layer is internally provided with a plurality of elastic pieces, the shock absorption layer is internally filled with magnetorheological fluid, the absorption layer is internally provided with a silica gel honeycomb block, and the silica gel honeycomb block is filled with a plurality of elastic pieces. A reinforcing band is arranged in the absorbing layer, and the reinforcing band is filled with polyurethane foam. According to the device, the stability of the static friction coefficient is improved by arranging the bionic shark layer structure, the surface is durable and wear-resistant, scratches and fuzzing are reduced, and by means of hexagonal elastic deformation when the silica gel honeycomb block is pressed, the viscosity of magnetorheological fluid, damping vibration of polyurethane foam in the reinforcing band through a closed-cell structure, elastic deformation of an elastic piece and deformation of an air capsule, the stability of the static friction coefficient is improved. A multi-stage damping mechanism is formed to absorb vibration, local pressure can be dispersed to the whole absorption layer, and the excellent compression resilience performance is achieved.