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205 results about "Gas spring" patented technology

A gas spring is a type of spring that, similar to a typical mechanical spring that relies on elastic deformation, uses compressed gas contained within an enclosed cylinder sealed by a sliding piston to pneumatically store potential energy and withstand external force applied parallel to the direction of the piston shaft.

Motor vehicle and method for mounting a steering wheel on a motor vehicle

motor vehicle, - a steering wheel; - a contact unit (6) which is designed to be at least partially rotatable in order to establish an electrical connection between steering wheel-side components and stationary vehicle components, - the steering wheel features: - a gasbag module; - at least one functional element and / or at least one actuating element; - at least one central electronic unit interacting with the functional element and / or the actuating element; - at least one central unit carrier (1) on which the central unit is arranged; and - a connecting device (3) arranged at least partially on the central unit carrier (1), via which the gas bag module can be electrically connected to the vehicle-side contact unit (6), characterized by the fact that the connecting device (3) comprises at least one contact unit coupling element (33) arranged on the central unit carrier (1) and electrically coupling with the contact unit (6) in the form of a plug that can be coupled to a socket of the contact unit (6) or a socket that can be coupled to a plug of the contact unit (6); and the connecting device (3) comprises a carrier in the form of a circuit board (8) arranged in a housing (810), which is different from the central unit carrier (1) and fixed to the gas bag module, wherein a first contact element (81) of the connecting device (3) is arranged on the circuit board (8), which is detachably connected to a second contact element (82) of the connecting device (3) arranged on the central unit carrier (1), wherein at least one module coupling element (310, 311) coupled to the gas bag module is arranged on the circuit board (8).
Owner:JOYSON SAFETY SYSTEMS GERMANY GMBH

A stiffness valve for vehicle suspension air spring systems

ActiveCN224453504UAir springGas spring
This utility model relates to the field of variable stiffness air spring technology for automotive suspensions. Specifically, it relates to a stiffness valve for a vehicle suspension air spring system, comprising a valve body; a coil is provided in the valve body; an electromagnetic component is provided in the coil; the electromagnetic component includes a stationary iron; a valve sleeve is connected to the stationary iron; the valve sleeve is connected to the valve body; a valve core is provided in the valve sleeve; the valve core includes an armature, a push rod, and a valve body piston; the armature, push rod, and valve body piston are an integral structure. This utility model, through its integrated valve core design—where the armature, push rod, and valve body piston are an integral structure—effectively reduces the problems of high machining precision and coaxiality of parts after press-fitting in traditional stiffness valves, thereby reducing the number of parts and saving component costs.
Owner:WUHU BETHEL AUTOMOTIVE SAFETY SYST CO LTD

A water rescue inflation device with automatic alarm function

InactiveCN122078591ARealize powerful sound and light warningavoid affecting actionVessel signalling devicesLife-savingControl engineeringGas spring
This invention belongs to the technical field of water rescue equipment, specifically providing a water rescue inflatable device with an automatic alarm function. It consists of an airbag, a strap connecting the airbags, and a main unit fixed to the strap. The device uses a trigger assembly in conjunction with an electromagnet to release a spring shaft, driving the main gear and secondary gear to mesh and rotate. This drives a rotating light shield to emit a flashing signal from a high-brightness LED and activate the alarm. A water-soluble sheet dissolves and releases the elasticity of the inflation spring, pushing a puncture needle to puncture the inflation cylinder, allowing gas to flow through a diversion cap into the airbag for inflation, simultaneously activating the diving whistle. This device integrates early audible and visual alarms, attitude sensing triggering, mechanical flashing, and pneumatic backup alarms, effectively solving the problems of existing life-saving equipment having a single alarm method, lacking early active alarms, and lacking dual protection mechanisms.
Owner:SANYA UNIVERSITY

A flip cover mechanism

ActiveCN224413401Usmooth turningImprove stabilityClassical mechanicsGas spring
The utility model discloses a kind of flap mechanisms, including box, box cover, baffle, hinge, sheet metal support, spring steel wire and pulley;Box top is equipped with box cover, baffle is fixedly connected in box outer wall one end, hinge is located at baffle both ends, sheet metal support is fixedly installed in baffle one end, spring steel wire rotation is connected in sheet metal support lower side both ends, pulley rotation is connected in one end of spring steel wire.The utility model is compared with prior art's advantage lies in: the utility model utilizes the spring steel wire and the elasticity and torsional force of repeatedly contact cooperation between hinge to promote hinge, when hinge moves back, hinge profile promotes pulley movement, box cover is in open state at this time, the angle of opening and closing is locked by limiting screw and cam limiting boss between pulley and hinge simultaneously, it is convenient to open and close box cover stably, and the present mechanism does not need gas spring, service life is long, the stability when box door cover opens and closes is improved.
Owner:BEIJING GEEM INSTR CO LTD

Air spring shock absorber fastener

The application belongs to the technical field of rail transit damping fasteners, and particularly relates to an air spring damping fastener, which comprises an upper iron pad, an air spring isolator, a lower iron pad, an anchoring system and a spring strip pressing system, wherein the air spring isolator is arranged between the upper iron pad and the lower iron pad and forms a sealed air cavity in the air spring isolator, the air spring isolator provides elastic support and damping effect for the steel rail through compression of the air cavity, the air cavity is communicated with the outside through a valve to realize air pressure adjustment, so as to change the elastic properties of the fastener, and the fastener has adaptive supporting and damping capacity under different load conditions. By introducing the air spring isolator as a core elastic element, the fastener can automatically match the reasonable rigidity under different load conditions, and the damping performance and structural safety are considered at the same time, so that the fastener has good damping effect, load adaptive capacity and engineering application value.
Owner:ZHENGZHOU RAIL TRANSIT CO LTD

An emergency drive device for an electric window regulator

PendingCN122358926AExternal energyGas spring
This application provides an emergency drive device adapted to electric window openers, specifically relating to the field of electric window drive structure technology. It includes a modular main body, within which a composite drive mechanism is installed. The composite drive mechanism includes a spring-loaded drive component, a power transmission component, a power output component, a locking component, and a first unlocking component. The spring-loaded drive component includes a fixed part fixed within the modular main body and a movable part that can extend and retract axially. The movable part is normally in a pre-compressed energy storage state. This emergency drive device adapted to electric window openers uses a gas spring or other elastic energy storage structure as its power source. The structure, with a fixed part and an energy-storing movable part, requires no external energy source such as electricity or hydraulic pressure, effectively avoiding the problem of emergency failure due to power outages during fires, and improving and ensuring the safety of electric windows in fire situations.
Owner:深圳市极意科技有限公司

Inert gas scrubbing tower for tankers

This utility model discloses an inert gas scrubbing tower for oil tankers, belonging to the field of inert gas cleaning technology. Its key technical features include a transmission mechanism and a cleaning mechanism. The cleaning mechanism is located inside the transmission mechanism. By setting the cleaning mechanism, the wall cleaning component can cooperate with the screen cleaning component. Driven by the transmission mechanism, the transmission frame can move the horizontal gas spring rod on the inner wall of the diversion hood, scraping away residual impurities and achieving self-cleaning of the inner wall. The vertical gas spring rod can rotate with the transmission frame, causing the cleaning scraper to rotate as well, thus removing residual impurities at the bottom of the interception screen. This achieves automatic cleaning of the interception screen and diversion hood as gas flows through, improving the stability of cleaning impurities inside the interception screen and diversion hood.
Owner:JIANGSU NEW HANTONG SHIP HEAVY IND

Gas spring connection structure

This utility model relates to the technical field of gas spring connection structures, and discloses a gas spring connection structure, including a gas spring body, connecting ends fixedly installed at both ends of the gas spring body, and two connecting components adapted to the connecting ends. Each connecting component includes an L-shaped fixed base, a threaded post, a fixed post fixedly installed on the L-shaped fixed base, and a locking member disposed on the fixed post. The threaded post is fixedly installed at the lower end of the L-shaped fixed base. The locking member includes a fixed cylinder, a sleeve movably fitted onto the fixed cylinder, two connecting blocks fixedly installed on the inner wall of the sleeve, a toggle ring, and multiple movable balls. The fixed cylinder has an annular groove and multiple mounting grooves adapted to the movable balls. The mounting grooves communicate with the annular groove and the inner side of the fixed cylinder. The toggle ring is movably installed in the annular groove. The purpose is to solve the problem that current gas springs are inconvenient to disassemble and assemble in confined spaces or situations requiring frequent disassembly and assembly, thus affecting the overall maintenance efficiency of the equipment.
Owner:CHONGQING BIHE TECH CO LTD

Surgical bed and support module

PendingCN122350972AGas springTransfer mechanism
An operating table and its support plate assembly are disclosed. The operating table includes a main support portion and a support module. The support module includes a transfer mechanism and a support plate assembly. The transfer mechanism is connected to the main support portion. The support plate assembly includes a support plate, a first gas spring, a second gas spring, a first unlocking member, and a second unlocking member. The proximal end of the support plate is rotatably connected to the transfer mechanism about a first axis. The proximal ends of the first and second gas springs are rotatably connected to the transfer mechanism about a second axis. The distal ends of the first and second gas springs are rotatably connected to the distal end of the support plate about a third axis. The first and second unlocking members are used to trigger the first and second gas springs when subjected to external force, causing them to be in a retractable unlocked state. When the external force is removed, the first and second gas springs can be reset to a non-retractable locked state. When the first gas spring is reset to the locked state, the second gas spring has not yet been reset to the locked state.
Owner:NANJING MINDRAY BIO MEDICAL ELECTRONICS

Performance testing method of high-load large-stroke air spring assembly

PendingCN122306343ARubber materialAir spring
This invention relates to a performance testing method for a high-load-bearing, long-stroke air spring assembly, comprising the following steps: S1, determining the model and operating parameters; S2, installation and alignment; S3, air pressure setting; S4, pre-cycle; S5, stretching the air spring; S6, compressing the air spring; S7, unloading and returning; S8, recording deformation data. Before formally recording data, the performance testing method of this invention performs multiple complete compression and rebound pre-cycles on the air spring. This not only eliminates the initial structural stress relaxation of the air spring bladder and cord layer, improving the repeatability and consistency of stiffness testing, but also identifies hidden damage or assembly defects in the air bladder in advance, avoiding sudden failure during formal testing. Furthermore, it allows the rubber material of the air spring to reach a stable hysteresis working state, simulating the actual pre-service break-in process, making the subsequently measured stiffness parameters closer to the true values ​​of long-term stable operation, and thus making the test data more accurate.
Owner:JIANGSU HUAYON COMPOSITE MATERIAL CO LTD

A seat back adjustment mechanism and a seat

ActiveCN224276900Uquick unlockImprove regulation stabilityArm restsMovable seatsCar seatGas spring
This utility model relates to the field of automotive seat technology, specifically a seat back adjustment mechanism and seat, including a button assembly with a pressing end protruding from the armrest; an unlocking mechanism including an unlocking end and a driving end arranged opposite each other; a linkage assembly, the first end of which is fixedly connected to the connecting end of the button assembly, and the second end of which is fixedly connected to the driving end of the unlocking mechanism; and a gas spring assembly, the fixed end of which is connected to the unlocking end of the unlocking mechanism, and the rotating end of which can be rotatably connected to the seat back. Under the drive of the button assembly, the linkage assembly can pull the unlocking mechanism to rotate relative to the armrest, and the unlocking mechanism can drive the gas spring assembly to move along the axis of the gas spring assembly. Under the action of external force, the seat back can rotate relative to the armrest. This utility model can optimize the overall structural dimensions, improve the aesthetics of the seat, reduce the damage rate and maintenance cost of the button assembly, and improve the reliability of the seat back adjustment mechanism.
Owner:XIAMEN GOLDEN DRAGON AUTO SEAT

Three-stage lifting device

Three-stage lifting device, characterized in that it comprises: a gas spring, a release element, an inner tube, a middle tube and an outer tube; wherein the middle tube is arranged on the outside of the inner tube, the outer tube is arranged on the outside of the middle tube, and the inner tube is connected to the middle tube and the outer tube respectively via a synchronization assembly; wherein a first connecting plate is provided on the middle tube and a second connecting plate is provided on the outer tube, the cylinder tube of the gas spring is attached to the first connecting plate and the telescopic rod of the gas spring is guided through the first connecting plate and connected to the second connecting plate;wherein the release element is movably attached to the second connecting plate and the release element is arranged opposite the release pin arranged on the telescopic rod, wherein the release element is designed to displace the release pin when actuated.
Owner:GARBAU (NANJING) INTELLIGENT FURNISHINGS & ACCESSORIES CO LTD

Gas spring mounting and connecting structures, as well as equipment with opening and closing mechanisms.

ActiveCN224283317UAvoid the influence of installation accuracyIncrease the gapSpringsGas based dampersGas springScrew thread
A gas spring mounting structure and connection structure, and a device having an opening and closing mechanism are disclosed. The gas spring mounting structure is used to connect the gas spring to the opening and closing mechanism. The first end of the gas spring is used to connect to the housing of the opening and closing mechanism. The gas spring mounting structure includes: a first support member with a first end face and a first hole in the first end face; a second support member with a second end face and a second hole corresponding to the first hole in the second end face; and a first threaded fastener, which is embedded in the second support member and the first support member through the second hole and the first hole to realize the disassembly and locking of the first support member and the second support member. The first threaded fastener is used to reduce the gap between the second support member and the first support member during the locking process, thereby gradually pre-tightening the gas spring. Furthermore, due to the existence of the gas spring mounting structure, no additional gas spring mounting fixture is required, avoiding the influence of the superposition of the tolerances of the fixture and the gas spring on the installation accuracy.
Owner:CHENWEI EQUIP TECH (SUZHOU) CO LTD

An inverted assembly apparatus for an air spring seal cover and a clip

ActiveCN122058155BAir springGas spring
The application discloses an inverted assembling device for an air spring sealing cover and a clamp spring, which comprises a feeding device, a conveying line, a lifting device, a locking device, a transplanting module, a supporting device and a synchronous pressing device; the feeding device comprises a placing die, and the clamp spring and the inverted sealing cover are received in the placing die; the conveying line conveys a bearing seat loaded with an inverted air spring semi-finished product or a finished product; the lifting device lifts the bearing seat to a predetermined position; the locking device locks the bearing seat; the transplanting module moves the locked bearing seat to a pressing position; the supporting device axially presses the air spring semi-finished product; and the synchronous pressing device comprises a pressing head, which extends into the placing die from bottom to top, presses the sealing cover into an air chamber and synchronously presses the clamp spring into a clamp spring groove; the application makes the clamp spring be constrained by gravity through inverted assembling, eliminates the hidden danger of splashing and hurting people, reduces secondary positioning through synchronous pressing and axial pressing, reduces the sealing cover scratch rate, replaces artificial high-intensity labor through full-automatic operation, and improves production efficiency.
Owner:NINGBO TUOPU IND AUTOMATION CO LTD

Air spring automatic adjustment belt conveyor sweeper

ActiveCN224393809UImprove scraping efficiencyGuaranteed stabilityConveyorsCleaningAir springGas spring
The utility model discloses an air spring automatic regulation belt conveyer sweeper, specifically related to belt conveyer cleaning technical field, including two belt support crossbeam, be equipped with the sweeper overall support between two belt support crossbeam, the sweeper overall support top is equipped with the scraper body, elastic mechanism, elastic mechanism is located between the scraper body and the sweeper overall support, is used to exert the elastic force to the scraper body, guide mechanism, guide mechanism is located the sweeper overall support top, is used to the orientation to the scraper body, gas supply mechanism, gas supply mechanism communicates with elastic mechanism, the utility model discloses a scraper body will compress air spring body, air spring body will give the scraper body an upward force makes the scraper always close belt, and the residual on the belt is scraped, simultaneously, the scraper will slide between two guide wheel bodies, and then improve the scraping efficiency of the scraper and guarantee the stability when the scraper moves.
Owner:伊春鹿鸣矿业有限公司

Air spring and vehicle

The application discloses an air spring and a vehicle, the air spring comprising: a top seat, an installation cavity is formed in the top seat, an adjusting assembly, the adjusting assembly comprising a movable piece, the movable piece is movably installed in the installation cavity, and the movable piece is spaced apart from the bottom wall of the installation cavity to define an adjusting air cavity, wherein at least part of the outer peripheral wall of the movable piece and the inner wall of the installation cavity are connected through a first threaded pair, and the movable piece is adapted to move along the axial direction of the first threaded pair to adjust the volume of the adjusting air cavity. The air spring of the application can adjust the volume of the adjusting air cavity by adjusting the position of the movable piece, thereby adjusting the stiffness of the air spring. When adjusting the volume of the adjusting air cavity, the stiffness of the air spring is continuously adjusted and there is no volume error by moving the movable piece along the axial direction of the first threaded pair.
Owner:CHERY AUTOMOBILE CO LTD

A seat back unlocking mechanism and a seat

This utility model relates to the field of automotive seat technology, specifically a seat back unlocking mechanism and seat, including: a press-down button assembly; an unlocking assembly, which is fixedly connected to the press-down button assembly; a snap-fit ​​assembly, including a fixed shaft and a fixed plate assembly, the fixed shaft being snap-fitted and fixed to the unlocking assembly; and a gas spring assembly, including a connecting end and a rotating end arranged opposite to each other, the connecting end being fixedly connected to the fixed plate assembly, and the rotating end being rotatably connected to the seat back; the connecting end of the gas spring assembly can rotate relative to the fixed shaft, and under the action of external force, the seat back can rotate relative to the armrest; the press-down button assembly of this utility model has high structural strength and is not easily deformed during use, ensuring the structural stability of the press-down button assembly, reducing the damage rate of the press-down button assembly, and reducing maintenance costs; the press-down button assembly has a clear pressing stroke, allowing users to quickly sense whether it is fully unlocked, thus improving the user experience.
Owner:XIAMEN GOLDEN DRAGON AUTO SEAT

Railway vehicle secondary suspension mechanism

PendingCN122101255ABogie-underframe connectionsBogieMechanical equipment
The application belongs to the technical field of high-speed track mechanical equipment, and discloses a secondary suspension mechanism for track locomotive vehicles, which comprises a secondary suspension mechanism body and a drying drainage part. The secondary suspension mechanism body comprises a bogie and two air springs and four hydraulic springs. The two air springs mounted on the bogie serve as elastic elements for buffering vertical vibration and improving riding comfort. The four hydraulic springs mounted between the side beam of the bogie frame and the vehicle body bottom frame serve as load-carrying force transmission paths. The filter disc structure is internally provided with drying particles for dehumidifying the gas entering the air spring. A micro motor is used to drive the filter disc to rotate by 180 degrees, so as to realize automatic replacement of the failed drying agent. The automatic reciprocating movement of the rubber pressure plate can extrude and discharge the condensed water in the piston cylinder. The intermittent blocking design of the arc-shaped baffle can ensure the sealing property of the gas storage tank during the drainage process.
Owner:QINGDAO SANJUN CASTING CO LTD

Air spring rigidity adjusting system and vehicle

PendingCN122078454AChange the stiffnessImprove stabilityBogie-underframe connectionsAir springGas spring
The invention relates to the technical field of vehicles, in particular to an air spring rigidity adjusting system and a vehicle. The air spring rigidity adjusting system comprises two air spring sets which are oppositely arranged on the two sides of the vehicle, and each air spring set comprises at least one air spring. The air storage device comprises at least two air storage cylinders, and the air springs are connected with the air storage cylinders through air paths; the valve group comprises a plurality of valves, and the plurality of valves are respectively arranged in the gas path; the air spring is used for being communicated with different air storage cylinders through opening and closing of the multiple valves. The air springs are communicated with the air storage cylinders with different volumes to adjust the rigidity of the air springs, so that the rigidity of the air springs on the two sides of the vehicle can be changed, the rigidity of the air springs on the two sides of the vehicle can be switched in real time according to the driving condition of the vehicle during driving, and the vehicle obtains excellent stability and trafficability.
Owner:BYD CO LTD

A device for treating the inner surface of a magnesium-aluminum alloy product

This invention provides a surface treatment device for the inner cavity of magnesium-aluminum alloy products, including a tank. A servo motor is fixedly connected to the outer wall of the tank. A drive bevel gear is provided at the end of the output shaft of the servo motor. A rotating clamping device includes a rotating disk, two sliding blocks, and a mounting sleeve. The rotating disk is rotatably connected to the tank, and the mounting sleeve is fixedly connected to the center of the bottom surface of the rotating disk. A first bevel gear is fixedly connected to the outer wall of the mounting sleeve, and the first bevel gear meshes with the drive bevel gear. Two self-locking gas springs are installed on the bottom surface of the rotating disk. A flow pipe is rotatably installed at the bottom of the tank, passes through the mounting sleeve, extends above the rotating disk, and has nozzles arranged in an array along the outer periphery of the upper section of the flow pipe. This invention can stably and reliably clamp the workpiece and drive it to rotate, avoiding damage to precision structures caused by traditional rigid clamping. When the workpiece rotates, the flow pipe can rotate synchronously in the opposite direction, and grinding fluid, cleaning agent, and other media are sprayed from the nozzles to form a dynamic flushing coverage, improving spraying efficiency and better eliminating dead corners in the inner cavity surface treatment.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

A flip pedal structure

This utility model relates to a flip-up pedal structure for use on fire trucks, comprising a mounting plate, a flip-up frame, a gas spring, a panel, and a lever-type flat lock. Two sets of mounting plates are present. The flip-up frame is flipped and positioned between the two sets of mounting plates. Two gas springs are hinged between the flip-up frame and the two sets of mounting plates. The panel is fixed to the front side of the flip-up frame, and an installation opening is provided on the front side of the panel. A lever-type flat lock is installed at the installation opening. A baffle is rotatably connected to the side of the flip-up frame away from the panel via a pivot. The baffle is connected to the lever of the lever-type flat lock. A second gas spring is hinged between the flip-up frame and the baffle. This flip-up pedal structure, with its flip-up frame and baffle, allows personnel to stand on the baffle to retrieve fire-fighting equipment, providing operational convenience. Furthermore, the structure is simple, flips smoothly, and the operation is quick and easy when the baffle and flip-up frame are deployed and retracted.
Owner:XUNJIEAN EMERGENCY EQUIP TECH (HUBEI) CO LTD

Composite vibration isolation device based on air spring and magnetorheological fluid damper and control method

The application discloses a composite vibration isolation device based on an air spring and a magnetorheological fluid damper, which comprises a base, a load platform, a controller, an air spring composite component and a magnetorheological fluid damper arranged between the base and the load platform; the air spring composite component comprises an air spring and a mechanical spring; the air spring comprises an air bag and upper and lower sealing covers clamped on both sides of the air bag; the lower sealing cover is fixed on the base; the other end of the upper sealing cover is connected with the mechanical spring; the other end of the mechanical spring is fixed on the bottom of the load platform; the magnetorheological fluid damper is used for providing a damping value to assist the air spring composite component in vibration isolation; and the controller is used for controlling the damping value of the magnetorheological fluid damper and the air pressure value in the air bag. The application further provides a control method. The device provided by the application can efficiently, intelligently and widely isolate the vibration of a load device.
Owner:ZHEJIANG LIXIN ZHONGZHI ACOUSTIC TECH CO LTD

Self-compensating gas spring

This application provides a self-compensating gas spring, comprising a cylinder, a piston rod, a piston, a sealing ring, and an elastic element. The piston rod is slidably disposed within the cylinder along a first direction. The piston is limited and sleeved on the piston rod located within the cylinder along the first direction. The sealing ring is slidably sleeved on the piston along the first direction, maintaining a sealed fit with the inner wall of the cylinder to divide the cylinder into a first chamber and a second chamber. A fluid passage is disposed on the piston, comprising a blocking area and a conducting area. A blocking area exists between the conducting area and the second chamber. When the sealing ring is located in the blocking area, the first chamber and the second chamber are blocked; when the sealing ring is located in the conducting area, the first chamber and the second chamber are connected. The elastic element is disposed at the end of the piston away from the sealing ring, and is used to apply a compensating force along the first direction to the sealing ring when the piston rod retracts toward the first chamber. This compensating force is in the same direction as the compression direction of the piston rod, to prevent the sealing ring from displacing from the blocking area toward the conducting area near the second chamber.
Owner:NINGBO LIPINGE MACHINE IND

Limiting structure of nitrogen spring support

The utility model discloses nitrogen gas spring support of limit structure, specifically relates to nitrogen gas spring technical field, including cylinder, bottom plate, air inlet and exhaust pipe, support rod, top cover, jacking assembly and limit component, and jacking assembly realizes support and reset function through piston, plug rod etc. and nitrogen gas cooperation in cylinder, and guide rod and top cover guide hole cooperation guarantee movement stability, and limit component can carry out accurate location to the height of jacking assembly's rise and drop through electric push rod drive lifting plate and limit disc, and set up pressure -relief valve and one -way inflation valve on air inlet and exhaust pipe, guarantee safety and be convenient for maintenance. The utility model discloses through limit component and air pressure control, effectively promoted nitrogen gas spring support's safety, stability and limit precision, avoid cylinder burst and object collision risk, be applicable to the mechanical scene of needing accurate support and location.
Owner:KUNSHAN JIENUOXUAN MACHINERY CO LTD

A track walking unit lifting system for an amphibious vehicle and method of use

The application relates to the technical field of amphibious vehicle suspensions, in particular to a track walking unit lifting system for an amphibious vehicle and a use method thereof, which comprises an oil-gas spring upper support, a double-cylinder oil-gas spring, a limiting lock, a pull rod, a track walking unit, a balance elbow assembly, a balance elbow auxiliary seat, a limiting rod, a rocker arm and a vehicle body. When the vehicle runs on soft road surface, oil is filled into the main oil cavity of the oil-gas spring through a hydraulic control system, the rocker arm is pushed and the balance elbow swings until the track walking unit is in contact with the ground. Under this use condition, the track walking unit can bear part of the load of the vehicle, the contact area between the vehicle and the ground is increased, the ground pressure of the whole vehicle is reduced, and the passing performance of the vehicle on the soft road surface is improved. When the vehicle runs on water, oil is filled into the annular cavity of the oil-gas spring through the hydraulic control system, the piston rod is contracted to drive the rocker arm and the balance elbow to swing, and finally the track walking unit is lifted into the wheel cabin.
Owner:CHINA NORTH VEHICLE RES INST

Air spring based horizontal seismic isolation bearing

PendingCN122280394AEarthquake intensityAir spring
This invention relates to the field of seismic isolation bearing technology, specifically a horizontal seismic isolation bearing based on air springs, comprising a lower connecting steel plate, an upper connecting steel plate, a lead-core rubber bearing element, a supporting sliding element, a sector-shaped air spring, and a dust cover. The lead-core rubber bearing element is fixedly connected to the upper part of the supporting sliding element, and the supporting sliding element and the lower connecting steel plate are connected through sliding contact, forming a sliding friction pair. Multiple sector-shaped air springs are arranged circumferentially around the supporting sliding element, and the outer sides of the sector-shaped air springs are connected to steel limiting rings fixed to the lower connecting steel plate. The sector-shaped air springs are internally equipped with limiting devices and buffer rubber to prevent excessive displacement and compression damage. A dust cover is installed on the upper part of the steel piston rod of the sector-shaped air spring. The bearing of this invention can automatically adjust its working state according to the earthquake intensity, primarily using sliding and air springs during minor earthquakes, and activating the lead-core rubber for energy dissipation during major earthquakes, achieving intelligent graded seismic isolation.
Owner:EASTERN GANSU UNIVERSITY