329 results about "Elastic energy" patented technology

The invention relates to the field of nuclear fusion, and discloses a fixing device for a nuclear fusion preassembled assembly, and the fixing device comprises a magnet connecting assembly which comprises a first beam body and a magnet connecting part, the first beam body extends in a first direction, and the magnet connecting part is arranged on the first beam body; the vacuum chamber connecting assembly and the magnet connecting assembly are spaced in the second direction, the vacuum chamber connecting assembly comprises a second beam body and a vacuum chamber connecting part, the second beam body extends in the first direction, and the vacuum chamber connecting part is arranged on the second beam body; the beam body connecting assembly is arranged at the two ends of the second beam body in the first direction, is connected with the first beam body and comprises a first connecting piece, a second connecting piece and an elastic energy storage piece, the first connecting piece is movably connected with the second connecting piece and is detachably connected with the first beam body, and the second connecting piece is detachably connected with the second beam body; one end of the elastic energy storage piece is movably connected with the first connecting piece, and the other end is movably connected with the second connecting piece. The gap between the magnet and the vacuum chamber can be restrained, and the position precision between the magnet and the vacuum chamber is guaranteed.

The present invention discloses a flapping-wing aircraft capable of catapult takeoff and having a sweep-torsion mechanism, belonging to the field of aircraft technology. The aircraft comprises: a fuselage frame, left and right flapping wings, a passive torsion mechanism, a sweep mechanism, a catapult takeoff mechanism, a transmission flapping mechanism, and a tail rudder, wherein: a passive torsion mechanism and a sweep mechanism are provided at the roots of the left and right flapping wings, the catapult takeoff mechanism is provided in the middle of the fuselage, and a hip joint, thigh, ankle joint, calf, foot, and toe joint are provided from top to bottom, the inner and outer sides of the hip joint are controlled by a servo motor for relative rotation, the ankle joint and toe joint are provided with elastic energy storage torsion springs, a synchronous pulley and its drive mechanism are provided between the outer side of the hip joint and the outer side of the ankle joint to control the relative rotation between the thigh and the calf, and perform energy storage for catapult takeoff. In summary, the aircraft can perform catapult takeoff flight, and can perform passive torsion and sweeping motions during the flapping of the wings, which helps to increase the flapping wing lift and the overall payload of the aircraft.

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 tunnel engineering, aims at solving the problems that an existing flexible connector is prone to breakage when being impacted, the protection effect is difficult to achieve, the connector and a tunnel lining are prone to being damaged, and potential safety hazards are caused, and provides a tunnel lining self-adaption section flexible connecting structure. Comprising a flexible connector arranged between two adjacent secondary lining sections, and the two ends of the flexible connector are used for being connected with the ends of the secondary lining sections on the two sides of the flexible connector respectively; the flexible connector comprises a framework, the interior of the framework is of a hollow structure, and the framework has rigidity and elasticity and can prevent the framework and a lining from being damaged and adapt to tunnel deformation; the flexible connecting structure disclosed by the utility model has certain rigidity, so that the secondary lining section seam has higher rigidity, and the secondary lining section seam is not easy to break when being subjected to larger earthquake damage or large-scale energy impact; and in addition, high elasticity and restorability are achieved, large deformation can be adapted, and the anti-dislocation capacity of the tunnel structure is improved.

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.

The invention provides a winding anti-loosening and unfolding orienting device for a flexible stretching rod and a using method thereof.The winding anti-loosening and unfolding orienting device comprises wedge blocks, wedge block seats, a winding cylinder, the flexible stretching rod, an adapter shaft, a connecting rod and a guide wheel, the multiple wedge block seats are symmetrically arranged on the two sides of the winding cylinder, and the flexible stretching rod is arranged on the winding cylinder from inside to outside in a winding mode; a plurality of wedge blocks are symmetrically installed on the two sides of the flexible stretching rod, and the wedge blocks on the wound flexible stretching rod are stacked layer by layer and locked on the wedge block base to form a wedge block set. The wedge blocks and the wedge block bases are interlocked in the tangential direction and the transverse direction, the tangential displacement and the transverse displacement between the rings are limited, and disordered expansion and scattering of the flexible stretching rods under the action of the elastic energy of the flexible stretching rods and mutual contact friction of flexible stretching rod bodies between the rings are prevented; orderly fixation of folding and winding and orientation of unfolding of the flexible stretching rod are ensured; the structure is simple and reliable, the additional mass is small, and the usability and reliability of the flexible stretching rod serving as a stretching mechanism are improved.

The invention discloses a sealing structure suitable for an ultrahigh pressure container. A sealing area A is arranged at a pressure loading end between the inner wall of a cylinder and a sealing head, and a sealing area B is arranged in the direction far away from the pressure loading direction; in the sealing area A, the pressure loading end of the sealing head is provided with a circle of concave table, the end, away from the pressure loading direction, of the concave table is an inclined face a, an included angle a is formed between the inclined face a and the inner wall of the barrel, the pressure loading end of the sealing head is detachably connected with a gland, and a first sealing assembly or a second sealing assembly is installed in the concave table in a replaceable mode. The first sealing assembly comprises a metal triangular pad and a rubber sealing ring a. The second sealing assembly comprises a check ring and an elastic energy storage ring. In the sealing area B, a section of outer inclined plane is arranged on the outer side of the sealing head, a section of inner inclined plane is arranged on the inner wall of the cylinder, an included angle b is formed between the outer inclined plane and the inner inclined plane, and the threaded pressing ring, the pressing ring, the metal elastic ring and the rubber sealing ring b are sequentially arranged close to one another in the pressure loading direction. The structure can ensure the sealing reliability under various working conditions and is convenient to disassemble and assemble.

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.

A terminal block device and its locking-type electrical connection plug are provided. The terminal block device includes the locking-type electrical connection plug and an electrical connection socket connected with each other. The locking-type electrical connection plug includes a housing and a locking handle. The housing includes a guide groove divided into two segments. The locking handle includes a pressing part, a latch body, and an operating section. The latch body snaps onto the electrical connection socket. The operating section includes two shafts and an elastic component. The two shafts are guided by the two segments. The elastic component exerts an elastic force on the housing. When the pressing part is pressed, the locking handle is guided by the two shafts to swing, causing the latch body to lift and disengage from the electrical connection socket, and making the elastic component store elastic energy.

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.

The invention relates to a sleeve type anti-seismic truss connecting node and a truss structure unit, belongs to the technical field of buildings and engineering, and solves the problem of poor anti-seismic property caused by stress concentration at the node of a laminated wood truss structure in the prior art. The device comprises sleeve structures, laminated wood web members, chord member connecting plates, chord member steel filling plates and damping assemblies, the chord member connecting plates and the chord member steel filling plates are at least connected with the two sleeve structures, and the two ends of each laminated wood web member are connected with the corresponding sleeve structure; the sleeve structure comprises an outer sleeve, an inner sleeve and an elastic damping piece, the inner sleeve is arranged in the outer sleeve, and the elastic damping piece is arranged in a gap between the inner sleeve and the outer sleeve; the damping assembly is arranged at the joint of every two adjacent outer sleeves. The end anchoring part of the laminated wood web member is stressed in stages, so that the structural stress requirement is met, and the anti-seismic property requirement can be met through friction energy consumption and elastic energy consumption piece energy consumption.

The invention provides an elastic load-bearing device which comprises a first connecting body, a second connecting body, a third connecting body, a fourth connecting body and a fifth connecting body, and the first connecting body is internally provided with a first containing cavity and provided with a first opening communicating with the first containing cavity; a second containing cavity is formed in the second connecting body, a second opening and a third opening which are communicated with the second containing cavity are formed in the second connecting body, and the second opening and the third opening are oppositely arranged; the connecting assembly is embedded in the first containing cavity and the second containing cavity through the first opening and the second opening, so that the first connecting body and the second connecting body are connected through the connecting assembly; the buffering assembly is arranged in the second containing cavity in a sliding mode and can stretch out and draw back on the second connecting body in a sliding mode through the third opening; when the buffering assembly slides in the direction away from the first connecting body, elastic energy storage can be achieved between the buffering assembly and the second connecting body, so that buffering acting force is formed, and the technical problem that an existing bearing hanging bracket lacks a buffering function is solved.

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.