50results about How to "Reduce impact damage" patented technology

This utility model relates to the field of coking equipment technology, and more specifically, to a high-coverage, anti-adhesion ceramic liner configuration, comprising: a liner body and multiple hexagonal prisms embedded in multiple hexagonal holes in the liner body; the space between the hexagonal prisms and the hexagonal holes is filled with an adhesive curing liquid for forming a sealing interface. In this high-coverage, anti-adhesion ceramic liner configuration, multiple hexagonal prisms are installed on the liner body, and the multiple edges of the hexagonal prisms form continuous cutting edges. Under the impact of coke, the hexagonal prisms can break the coke to a certain extent, effectively reducing the amount of coke adhesion and improving the wear resistance of the liner body; and the end of the hexagonal prism away from the liner body is provided with a spherical impact-resistant structure, which decomposes the vertical impact force of the coke into a radial component, reducing the impact damage to the liner body.

The utility model provides a pulper feeding buffer device in papermaking equipment, the pulper comprises a pulping tank used for pulping pulp, the buffer device comprises a baffle plate, the baffle plate is configured on a path where the pulp falls to the bottom of the pulping tank, the baffle plate is obliquely arranged relative to the bottom surface of the pulping tank, and the baffle plate is a rectangular baffle plate; the fixing frame is configured to be fixedly connected with the side wall of the pulping tank; one end of each lifting device is fixedly connected with the baffle, the other end of each lifting device is fixedly connected with the fixing frame, and the four lifting devices are arranged at the four corners of the baffle respectively; the four lifting devices are configured to be controlled to adjust the heights of the four corners of the baffle correspondingly, and the inclination direction and the inclination degree of the baffle are controlled. The buffering device can reduce damage to the pulper in the pulp feeding process.

The application discloses a kind of based on airflow sorting feed raw material multistage impurity removal equipment, belong to feed processing equipment technical field;The equipment includes rack, cloth feed structure, multistage crossflow sorting structure, gradient wind speed regulation structure, impurity collection mechanism and airflow purification structure;The cloth feed structure is used to uniform cloth and reduce raw material impact breakage;The multistage crossflow sorting structure realizes multistage step-by-step sorting, avoids impurity secondary mixing;The gradient wind speed regulation structure matches grading wind speed according to raw material characteristics, improves impurity removal precision;The impurity collection mechanism realizes light, medium, heavy impurity grading collection and rapid cleaning;The airflow purification structure carries out multistage processing to dust-containing waste gas, realizes standard discharge;The application solves the technical defects of low precision, high energy consumption, easy to block hole of traditional impurity removal equipment, can realize high-precision, low breakage, continuous high-efficiency impurity removal processing.

The utility model provides an anti-falling device for logistics sorting, and relates to the technical field of anti-falling equipment, the anti-falling device for logistics sorting comprises a bottom plate, and the bottom plate is detachably installed on sorting equipment or the ground through screws; the anti-falling assembly is detachably installed on the bottom plate, the anti-falling assembly intercepts falling packages and prevents the packages from colliding with the ground or the surface of the sorting equipment, the anti-falling assembly comprises a frame, and the frame is detachably installed on the bottom plate through a connecting assembly; the telescopic rods are fixedly connected to the four corners of the frame, and rubber blocks for buffering are fixedly connected to the interiors of the telescopic rods; through the arrangement of the anti-falling assembly, after a parcel falls on the intercepting net, the intercepting net is stressed to generate a recess and encircles and gathers the parcel, the fallen parcel is effectively intercepted, and the situation that the parcel rebounds and pops out of a protection range, and consequently the parcel is damaged due to collision is reduced.

The utility model belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine feeding ladder which comprises an injection molding machine body, and the surface of the injection molding machine body is made of metal materials. A pair of fixing plates is arranged at the end part of the injection molding machine body; the end part of the fixed plate is rotationally connected with a connecting plate; the fixed plate and the injection molding machine body are connected through a plurality of first screws; a ladder is fixedly connected to the bottom of the first screw; the end part of the ladder is fixedly connected with a pair of first strong magnets; by installing the ladder on the injection molding machine body, the ladder can be quickly opened by rotating the ladder when the injection molding machine body is operated, and then the ladder quickly reaches the surface of the injection molding machine body to work, so that the operation of the ladder is accelerated; and meanwhile, after use, the ladder is rotated to be fixed and stored through magnetic adsorption of a first strong magnet and the injection molding machine body, so that storage of the ladder after use is increased, and the space utilization rate is reduced.

The utility model discloses a suspended type floor guardrail which comprises a cap, a metal gasket, a rubber gasket, a metal end, a chemical bolt and a flexible cross rod, the lower portion of the chemical bolt is fixed with embedded steel bar glue, and the upper end of the chemical bolt is fixed with the bottom of the metal end through the rubber gasket, the metal gasket and a nut in sequence. A flexible transverse rod is connected between the inner sides of the upper ends of the metal ends, and caps are arranged on the tops of the metal ends. Sundry accumulation is avoided through the design of the ground clearance cross rod, efficient buffering is achieved by combining the flexible material and the elastic supporting structure, and the device is suitable for area division and anti-collision requirements of workshops, warehouses and the like and has the advantages of being convenient to install and low in maintenance cost.

This invention relates to the field of aero-engine technology and discloses an engine intake casing, including a casing body. The casing body includes a first cylindrical section and a second cylindrical section. One inner wall of the second cylindrical section coincides with one inner wall of the first cylindrical section. A bearing seat is provided at one end of the first cylindrical section. An air inlet is located at the first end of the second cylindrical section, and an air outlet is located at the second end of the second cylindrical section. The air inlet communicates with the aircraft air intake duct, and the air outlet communicates with the engine compressor. The outer wall of the first cylindrical section and the inner wall of the second cylindrical section form an airflow channel. One end of the airflow channel forms the air inlet, and the other end forms the air outlet. The air outlet's outlet direction is coaxial with the bearing seat, and the air inlet's inlet direction is angled with the bearing seat. This invention reduces installation difficulty and aerodynamic losses.

The invention relates to the field of paint spraying, in particular to a curved surface paint spraying boundary technology which comprises the following steps that S1, a first color layer is sprayed to a curved surface structure; s2, removing the first color layer on the second side of the color block boundary; s3, spraying a release interlayer on the curved surface structure, wherein the release interlayer is sprayed on the second side of the color block boundary and the surface of the first color layer; s4, removing the release interlayer on the second side of the color block boundary; s5, spraying a second color layer on the curved surface structure, wherein the second color layer is sprayed on the second side of the color block boundary and the surface of the release interlayer; and S6, removing the release interlayer so as to remove the second color layer sprayed on the surface of the release interlayer, and respectively forming a first color block and a second color block on the first side and the second side of the color block boundary. The multi-color paint spraying device has the effect of conveniently carrying out boundary multi-color paint spraying on the curved surface structure.

The utility model discloses a strength measuring device for an automobile rear anti-collision beam with a protection structure, comprising: a support base, an installation hole is arranged above the support base, and a fixing plate is fixedly installed above the inside of the installation hole through bolts, and a hydraulic cylinder is arranged inside the fixing plate, and an installation block is installed outside the output end of the hydraulic cylinder; a maintenance mechanism for extending the service life of the hydraulic cylinder is arranged on the outer right side of the output end of the hydraulic cylinder. The strength measuring device for the automobile rear anti-collision beam with a protection structure can effectively block the splashing of fragments after the rear anti-collision beam is impacted through the setting of the protection structure, effectively ensuring the personal safety of testers. At the same time, a shock absorption mechanism is arranged, and a shock absorption mechanism is arranged at the output end of the hydraulic cylinder, which can reduce the impact damage brought to the hydraulic rod by the impact. In addition, a maintenance mechanism is arranged, which can effectively maintain the hydraulic cylinder, thereby greatly extending the service life of the hydraulic cylinder.

This invention discloses a water hammer-resistant gate valve with a rotary wheel, relating to the field of valve technology. It includes a valve body with an inlet and an outlet, connected by a central cavity. The central cavity is equipped with a water hammer-resistant pressure-reducing device to prevent water hammer damage to the valve when it is closed. The outlet has a drain port and a drain cavity, connected to the outlet and central cavity. The water hammer-resistant pressure-reducing device includes a rotary disc and a drive mechanism. The rotary disc has several slots, within which rotating plates are movably disposed. The valve stem is eccentrically positioned. When water hammer occurs, the drive mechanism moves the rotary disc downwards, causing the medium in the outlet to push the disc to rotate and eliminate the water hammer. This invention effectively reduces the impact damage of water hammer on the valve, relieves pressure on the return medium, and extends its service life.

The invention provides a commercial vehicle AMT auxiliary box gear shifting process control method which effectively reduces impact damage of a synchronizer, reduces the synchronization failure probability of the synchronizer and reduces forward gear impact and abnormal sound. The method is characterized in that during pneumatic gear shifting control, when a synchronization starting position is approached, air inlet is controlled through low frequency, and pressure in a gear shifting air cavity is reduced in advance, so that the movement speed of a piston of a corresponding air cylinder is reduced, and when a synchronizer is in contact, the pressure of the air cavity reduces synchronous torque due to low-frequency air inlet and exhaust; and when the position of the auxiliary box is recognized to pass through the synchronous position, the original frequency is recovered for air intake, and the gear shifting action is completed.

The utility model belongs to the technical field of mechanical equipment, and discloses a truss manipulator which comprises a supporting frame, x-axis fixing frames are symmetrically and fixedly connected to the upper portion of the supporting frame, a movable frame is slidably connected between the two sets of x-axis fixing frames, and a movable seat of a frame-shaped structure is fixedly connected to the surface of the movable frame. A z-axis moving frame is slidably connected to the interior of the moving seat, a fixing plate is mounted at the bottom end of the z-axis moving frame, and a clamping mechanism is arranged below the fixing plate; the servo motor is started to push the z-axis moving frame to move downwards, impact force can be quickly absorbed through the spring at the moment when the clamping mechanism makes contact with an object, rigid collision is converted into flexible contact, and impact damage to the mechanical arm and the object is greatly reduced; and the pressure sensor can detect the pressure change during contact with the object in the downward moving process in real time, so that the safety and the stability of the production process are improved.

The application discloses a hoisting tool and method for a dual-fuel diesel engine cylinder block, and the tool comprises a load-bearing frame, a first cross rail is arranged on the load-bearing frame, a moving trolley is arranged on the first cross rail, a hoisting cable with a hook is arranged on the moving trolley through a winding mechanism, and a weight sensor is arranged on the hook; a second cross rail parallel to the first cross rail is arranged below the first cross rail, a synchronous trolley synchronously moving with the moving trolley is arranged on the second cross rail, a plurality of telescopic pieces are vertically arranged on the synchronous trolley, a supporting block is arranged on the top of each telescopic piece, and a distance sensor for detecting the vertical distance between the supporting block and the surface of the cylinder block is arranged on each supporting block; and the tool further comprises a controller. The hoisting tool is equipped with a protection mechanism, can effectively support the cylinder block when the cylinder block accidentally falls during hoisting, and the supporting structure adopted helps to maximally reduce the impact force and provide multiple buffering effects, so that the impact damage to the cylinder block is reduced.

This application relates to a joint module for a humanoid robot, comprising a housing disposed at the end of a large arm mechanism, a rotary motor disposed within the housing, an output shaft of the rotary motor extending out of the housing and connected to the rotating end of the forearm mechanism, and a blocking assembly disposed on the outer surface of the housing, the blocking assembly including a connecting plate, and an arc-shaped plate disposed on the connecting plate, the arc-shaped plate being located within the rotation range of the forearm mechanism. This application has the effect of improving the service life of the joint module.

The carbon fiber landing frame comprises a square frame, frames are connected to the two sides of the square frame in a bolted mode, threaded shafts are arranged in the frames, the two ends of the threaded shafts are rotationally connected with the frames through bearings, one ends of the threaded shafts are fixedly connected with first bevel gears in a sleeved mode, and the other ends of the threaded shafts are fixedly connected with second bevel gears in a sleeved mode. According to the device, the driving motor rotates forwards and backwards to drive a bevel gear set and a threaded shaft to achieve the synergistic effect, folding and unfolding of the supporting legs are achieved, maneuverability is improved, and the supporting legs are stable and reliable in the folding and unfolding process through the matched design of a threaded sleeve and a sliding rod; the damping shock absorber is arranged to effectively absorb the impact force generated when the aircraft vertically lands, the landing buffer performance is greatly improved, the impact damage to the aircraft structure is reduced, the carbon fiber material is applied, the overall weight is reduced, the strength and durability of the device are enhanced, and the device is suitable for the flight environment with frequent take-off and landing.

This utility model discloses a seat and a vehicle. The seat includes: a seat body, comprising a seat cushion, a backrest, and a leg rest, with the backrest connected to the rear end of the seat cushion and the leg rest connected to the front end of the seat cushion; an airbag module disposed on the leg rest, the airbag module being used to restrict the lower limb movement of the occupant on the seat body after deployment; and an airbag controller electrically connected to the airbag module, the airbag controller controlling the state of the airbag module based on received vehicle status signals. This utility model not only effectively reduces the displacement of the occupant in a collision, but also reduces the impact injury caused by inertia by slowing down the forward or lateral movement speed of the occupant's body, thereby significantly improving the protective effect of the entire occupant restraint system and providing more comprehensive and effective safety protection for the occupant.

The utility model provides a kind of drilling completion tool maintenance dismounting frame, it is related to well drilling rig technical field. Including well drilling rig, the outer surface of well drilling rig is fixedly connected with first connecting block, the outer surface of first connecting block is equipped with sliding slot, the utility model is cooperated with the design of T-shaped sliding block and sliding slot, and multiple fixed structures of connecting screw rod, screw sleeve and collar, significantly improve the connection stability of suspension rod, effectively prevent suspension rod accidental drop, the design of connecting spring and connecting slide rod can provide buffer protection when staff stumble, reduce the impact injury caused by inertia, two suspension rings provided in the top end of suspension rod provide redundancy protection, even if one suspension point fails, another can still provide support, the design of support plate and connecting screw rod allows to adjust support position according to work demand, improve work flexibility, by the cooperation of fixing block, sliding sleeve and limit snap ring, ensure that each component remains stable connection under working condition.

This invention relates to the field of electrical technology, and more particularly to a flyback switching power supply absorption circuit, a transformer leakage inductance absorption method, and a chip. The circuit includes: a transformer comprising a primary winding NP and a secondary winding NS; a primary sub-circuit comprising an energy storage branch connected to the primary winding NP and an absorption branch connected to the primary winding NP, wherein when the energy storage branch is on, the primary winding NP stores energy, and when the absorption branch is on, it absorbs the leakage inductance energy of the transformer; and a secondary sub-circuit connected to the secondary winding NS, wherein when the secondary winding NS is on, it provides an output voltage VOUT to the load connected to the secondary winding NS. This invention can solve the problem of low power conversion efficiency. By absorbing leakage inductance energy through the absorption branch for use by the load connected to the secondary sub-circuit, the power conversion efficiency can be improved.

The invention relates to the technical field of backpacks, in particular to a falling cliff buffering self-rescue type mountaineering backpack which comprises a backpack body, straps, an air bag, air cushions and an inflator pump, the straps are arranged on the back side of the backpack body in a bilateral symmetry mode, and the air bag, the inflator pump and the air cushions are arranged on the back side of the backpack body. Air delivery pipes are arranged between the air bag and the air cushions and between the air cushions, the air bags and the air cushions are communicated through the air delivery pipes, and when the inflator pump works, air is compressed and pumped into the air bag and the air cushions so that the air bag and the air cushions can blow. When a user falls down, the air bag and the air cushion are rapidly inflated through the inflator pump to be rapidly expanded, so that a thick gas buffer layer is formed between the back of the user and the backpack, and the buffer layer can effectively absorb and disperse impact energy through gas compression and pressure relief during impact; therefore, impact damage to the spine, buttocks and viscera of a user is greatly reduced.

The utility model discloses fuming cupboard equipment based on safety production, which relates to the technical field of fuming cupboards, comprises a fuming cupboard main body, and is characterized in that a first bracket, a second bracket and an electromagnet are arranged on two sides of the fuming cupboard main body, and a limiting frame is connected between the first bracket and the second bracket through a damping rotating shaft; the back of the limiting frame is connected with rollers, and the side face of the limiting frame is provided with an elastic piece and an adsorption plate. Through the arrangement of the first support, the second support, the limiting frame and the elastic piece, after the lifting window is completely lifted, the elastic piece drives the limiting frame to rotate, so that the limiting frame moves to the bottom of the lifting window, and when the lifting window falls by a small distance, the lifting window can fall on the limiting frame; compared with friction braking, abrasion has no influence on the limiting effect, compared with ratchet wheel locking, impact force is small, the structure is thick and strong and not prone to breakage, and compared with electromagnetic locking, continuous electrification is not needed, and energy conservation and environment protection are achieved.

The utility model discloses a kind of support frame of knitted cloth roll, it includes rack and support position set on rack, support position side is provided with receiving mechanism, rack includes support rod, support position includes the transverse support rod and longitudinal support rod being connected with each other, transverse support rod, longitudinal support rod is fixedly connected with support rod respectively, receiving mechanism is plate-like, receiving mechanism is fixedly connected with support position, receiving mechanism includes receiving plate, receiving plate is fixedly connected with transverse support rod, receiving plate is provided with receiving buffer groove, the receiving plate of the application is improved and transverse support rod horizontal fixed connection, structure is neat and facilitate with AGV dolly etc. Automated conveying equipment is used, production line link efficiency is improved, receiving plate and output plate are respectively provided with receiving buffer groove and output buffer groove, not only when cloth roll can effectively reduce impact, reduce noise when going in and out, more can guide and limit to roll shaft, avoid the scratch or deformation of cloth roll surface due to collision.

This invention discloses a spinning device structure suitable for an automatic splicing rotor spinning machine, including a spinning device housing assembly, a shear untwisting assembly, a spinning device locking assembly, a spinning device upper cover, and a rotor brake assembly; the shear untwisting assembly, the spinning device locking assembly, and the spinning device upper cover are all fixedly installed on the spinning device housing assembly, and the rotor brake assembly is hinged to the spinning device housing assembly; the spinning device upper cover also has a groove that cooperates with the shear mechanism, and the groove is used for guiding and limiting the splicing of the yarn.

The invention discloses an atmospheric pollution long-acting treatment device and a treatment method thereof, and relates to the technical field of atmospheric pollution treatment equipment.The atmospheric pollution long-acting treatment device comprises supporting feet, a hoop is fixedly installed at the top ends of the supporting feet jointly, a treatment device body is arranged in the hoop in an attached mode, and an air inlet flange is fixedly installed at the center of the bottom of the treatment device body; a top cover is rotatably mounted at the top of the processor body, a high-pressure injector head is mounted in the top cover, and an air outlet flange is fixedly mounted on the side, away from the air inlet flange, of the top of the processor body; through the arrangement of the limiting frame, the positioning frame and the spoiler, the position of the filter bag body is limited when the filter bag body cleans solid waste in gas, so that the situation that when the filter bag body filters the gas, the filter bag body is adsorbed and deformed under the action of negative pressure and even embedded into the positioning frame, so that fibers are broken or joints are damaged is avoided, and the service life of the filter bag body is prolonged. The limiting structure prevents the filter bag from being excessively shrunk through physical constraint, and fatigue damage caused by repeated deformation is reduced.

The utility model belongs to the technical field of anti-freezing solution production, and particularly relates to a batching device for anti-freezing solution production, which comprises a batching box and a motor, the upper end of the batching box is fixedly connected with a box cover through a plurality of bolts, the upper end of the box cover is fixedly connected with a feed hopper, a dispersing mechanism is arranged in the box cover, and the motor is fixedly connected with the feed hopper. The lower end of the batching box is fixedly connected with a discharge port, the discharge port is provided with a plugging mechanism, and a motor shaft of the motor is fixedly connected with a plugging block. The dispersion cover is hung at the lower end of the feed hopper through the hanging rod, so that materials fall to the upper end of the isolation cover from the lower end of the interior of the feed hopper and then are buffered through the buffer cover, and impact damage to the dispersion cover when the materials fall is reduced; then the materials are dispersed along the dispersion cover, discharged and conveyed to the inner wall of the batching box, so that the materials fall down along the inner wall of the batching box, the lower end of the batching box is protected, and the dispersion and mixing effects of the materials are improved.

This invention relates to the field of LCD display manufacturing technology, specifically to an automatic stacking device for LCD display production. The device includes a base and a receiving frame. The receiving frame is fixedly installed on the upper surface of the base, and its upper surface is open. A placement plate is horizontally fixedly installed in the middle section inside the receiving frame. By incorporating stacking components and a feeding mechanism, this invention not only reduces impact damage to some displays caused by feeding from a fixed height, but also prevents stacked displays from exceeding the receiving frame and affecting stacking stability. By setting a limiting mechanism one, it simultaneously presses against both sides of the stacking group to prevent some outer frame sides from protruding or shifting during stacking, thus affecting the stacking stability of the upper displays and improving stacking stability. By setting a limiting mechanism two, it simultaneously presses against the front and rear ends of the stacking group to reduce the deviation of the front and rear ends of the stacking group from protruding displays that affect the stacking stability of the upper displays, further improving display stacking efficiency.

This application relates to the field of flood control device technology, specifically to a rapid-assembly municipal flood control device, including a first flood control plate, a second flood control plate slidably connected to the right side of the first flood control plate, a limiting groove formed on the right side of the first flood control plate, and a limiting plate fixedly connected to the left side of the second flood control plate, the limiting plate being slidably connected inside the limiting groove. This invention utilizes a sliding buffer block inside the buffer groove, which buffers the impact of a spring, and the buffer block further buffers the buffer plate. The buffer block is fixedly connected to the inside of the buffer groove by a pull rope to prevent it from detaching. Therefore, when floodwater impacts the buffer plate, it provides a buffering function, reducing the impact damage caused by the flood. This provides buffering protection for both the first and second flood control plates, reducing the impact damage caused by floodwater.

This application relates to an extraction needle for use in a beverage machine extractor, comprising an extraction needle body, which includes a step, a main body, a connecting shaft, and a needle. One end of the step is connected to the main body, and the outer circumference of the main body is provided with external threads. One end of the main body is provided with a connecting shaft, which has symmetrically provided opening grooves on its circumference. The other end of the step is provided with a needle, which has a through hole inside and a lateral hole that can be formed on its side wall. The main body has a countersunk hole, the end of which communicates with the through hole. The needle may have a connecting cone, the small end of which is connected to the top point. The top point is conical with a bevel to form a needle tip, and its surface can be hardened. Symmetrical keyways are provided on both sides of the outer circumference of the main body, and blind holes are provided inside. A central shaft is provided at the center of the blind holes. Several reinforcing ribs are provided circumferentially between the outer circumference of the central shaft and the inner circumference of the blind holes to form a cavity. An internally threaded hole may be provided at the end of the central shaft. This application has the advantages of stable structure, reliable connection, good piercing effect, and convenient fluid transportation and installation.

The application discloses a special shock absorber for textile equipment and a shock absorbing method thereof, and has the structure including universal ball, displacement frame, shock absorber, and connecting disc, wherein the universal ball is connected with the shock absorber through the connecting disc, and the displacement frame is installed on the surface of the outer ring of the shock absorber; the displacement frame includes extension table, connecting strip, universal wheel, supporting column, spring, pressing surface, and connecting ring, wherein the extension table and the connecting ring are integrated, the connecting strip penetrates through the connecting ring and is connected with the pressing surface, the spring is installed between the pressing surface and the extension table, the supporting column is fixed at the bottom of the pressing surface, the universal wheel is connected with the supporting column and can rotate, and the universal wheel can rotate along the supporting column; the textile equipment has high requirements on operation precision; when the equipment has position deviation due to vibration, only the pressing operation can be used to remove the fixing of the suction cup, enable the universal wheel to correct the position, the whole process does not need to disassemble the equipment components, production stagnation caused by disassembly and debugging is effectively avoided, and the continuity of textile production and the stability of product quality are ensured.

The utility model belongs to the technical field of shock absorbers, and particularly relates to an efficient shock absorption rebuilt valve system structure which comprises a shock absorber body, and an inner cylinder is arranged in the shock absorber body. In the working process of the shock absorber, when the compression valve system is impacted to move downwards, the compression valve system is in movable contact with the force transmission block, the pressure of the compression valve system on the force transmission block is transmitted to the connecting block through the force transmission rod, and the connecting block moves downwards along the guide rod and compresses the spring after bearing the pressure transmitted by the force transmission rod. The elastic restoring force generated by the spring can exert upward acting force on the connecting block, the acting force and downward pressure transmitted to the connecting block by the compression valve system through the dowel bar form confrontation, the spring effectively buffers the impact force of the compression valve system on the rebuilt valve system body, the impact damage to the rebuilt valve system body is reduced, and the service life of the rebuilt valve system body is prolonged. Therefore, the service life of the rebound valve system body and the shock absorber body is prolonged, and the overall performance and reliability of the shock absorber body are improved.

This invention relates to the field of negative pressure automatic water discharge device technology, and discloses a mine negative pressure automatic water discharge device with anti-backflow function. The device includes a negative pressure automatic water discharge device, an upper cylinder cover fixedly installed at the upper end, an inlet pipe fixedly installed on one side of the device, and an outlet pipe fixedly installed at the lower end. Both the inlet and outlet pipes are equipped with sealing components, and each sealing component has a scraper assembly. Each sealing component includes a fixing ring fixedly installed on the outer side of the inlet pipe near one edge, and a magnetic ring fixedly installed at one end of the fixing ring. This mine negative pressure automatic water discharge device with anti-backflow function, through overall cooperation, allows the scraper strip to remove impurities from the contact surface between the sealing ring and the sealing film during the process of the collar closing on one side of the sealing ring, thus improving sealing reliability.