1741 results about "Gas spring" patented technology

The invention relates to an air pressure self-adaptive control method and device for a seat suspension and a computer readable medium, the seat suspension is connected with a seat body, an air spring is arranged on the seat suspension, and the method comprises the steps that in response to the situation that a passenger sits on the seat body, the air pressure self-adaptive control device is arranged on the seat body; and the air quantity of the air spring is adjusted according to the deviation between the current height of the seat suspension and the preset balance position, so that a passenger borne by the seat body moves to the preset balance position, and the air spring is in a pressure maintaining state meeting the design requirement. The air volume of the air spring in the seat suspension can be dynamically and adaptively adjusted according to the weights of different passengers, the function that one person has one air pressure is achieved, the transmission rate of vibration is effectively reduced, and the vibration reduction effect of the seat suspension, the riding comfort and stability of the passengers and the universality and environmental adaptability of a seat suspension system are improved.

The invention discloses a tool for assembling an air spring sealing assembly, and the tool is characterized in that the tool comprises a positioning mechanism which is used for positioning and fixing an air spring body; the press fitting mechanism comprises a guide sleeve and a pressure head; the guide sleeve is provided with a vertically-through guide cavity, and the guide sleeve is driven by a first driving piece to move up and down and can cover the mounting end part in the down stroke; the pressure head is coaxially arranged above the guide sleeve, and is driven by a second driving piece to independently move up and down; the clamp spring guide-in seat is arranged at the top of the guide sleeve, a guide-in cavity penetrating up and down is formed in the clamp spring guide-in seat, and the guide-in cavity is coaxially communicated with the guide cavity; and the snap spring pre-tightening mechanism is used for performing radial extrusion on the snap spring placed at the port position of the guide-in cavity, so that the snap spring falls into the guide-in cavity after being tightened. The press-fitting device has the advantages that the press-fitting of the sealing cover and the snap spring is combined in one step, the problems of deflection, popping and the like of the snap spring in the assembling process are effectively solved, operation is simple and safe, and assembling efficiency is high.

Rear cargo tray systems to provide extra storage within a vehicle and related methods are provided herein. A rear cargo tray system for rotatable securement to an interior portion of a vehicle can include a tray body and first and second tray brackets that provide support surfaces on which the tray body can rest. The rear cargo system can comprise first and second hinges secured to the tray body and the respective first and second tray brackets and first and second gas springs anchored to the respective first and second tray brackets with piston arms that can be secured to the tray body. Further, the rear cargo system can comprise at least one latch secured to the tray body distal from the first and second hinges configured to engage a locking plate on one of the first or second tray brackets.

A powered fastener driver including a driver blade movable from a top-dead-center (TDC) position toward a bottom-dead-center (BDC) position for driving a fastener into a workpiece, a nosepiece through which the fastener is driven into the workpiece that is configured to guide the driver blade and the fastener into the workpiece, and a lifting assembly for providing torque to move the driver blade from the (BDC) position toward the TDC position. The lifting assembly includes a rotary lifter for engaging the driver blade to move the driver blade toward the (TDC) position. The rotary includes a body having a central aperture, a flange radially extending from the body that defines an outer radial profile configured to contact the driver blade to return the driver blade from the BDC position toward the TDC position, and a non-rotating mounting shaft coupled to the central aperture to rotatably support the rotary lifter thereon.

The invention discloses a compact rigidity damping inerter self-control type hydro-pneumatic spring and a working method. The bottom of the lower end of a plunger of a hollow structure is sealed, is downwards connected with a wheel and extends into an oil cylinder from bottom to top, the top of the upper end of the plunger is fixedly connected with a piston, and a row of plunger holes are formed in the upper portion of the plunger; the upper part of an upper cavity of the oil cylinder is sequentially connected with a damper and a small oil-gas chamber; the lower part of a lower cavity is sequentially connected with an inerter pipe, an adjustable throttle valve and a large oil-gas chamber; the upper end of the self-control device outer cylinder is fixedly connected with the piston; a self-control device inner barrel capable of moving up and down is coaxially sleeved in the self-control device outer barrel, the lower end of the self-control device inner barrel is sealed, and the upper section of the self-control device inner barrel is hinged to the oil cylinder upper end cover; an inner barrel upper row oil through hole formed in an inner barrel of the automatic control device is always located in an upper cavity of the oil cylinder, the upper edge of an inner barrel middle row oil through hole is aligned with the upper edge of an outer barrel upper row oil through hole, and the lower edge of an inner barrel lower row oil through hole is aligned with the lower edge of an outer barrel lower row oil through hole. The rigidity is changed, and the damping and the inerter can also be changed.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle and an outer rim surrounding the inner rim. The wheel assembly may also include gas springs operatively coupled between the inner rim and the outer rim to provide a gas suspension for relative movement between the inner rim and the outer rim. Each of the gas springs may have a controllable gas pressure. The wheel assembly also includes a wheel rotational position sensor, a vehicle operator control input interface, and a controller configured to control the gas pressure in each of the gas springs in a pattern in response to the wheel rotational position sensor and vehicle operator control input interface to assist in one of overcoming a rolling resistance of the wheel and a braking of the wheel.

A powered fastener driver including a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece. A driver may include a lifting assembly for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position, the lifting assembly including a rotary lifter configured to be selectively engageable with the driver blade, the rotary lifter having a plurality of lift pins and a roller disposed on at least one of the lift pins, wherein the roller includes a plurality of cam portions defined by cup-shaped recesses having a first radius oriented parallel to a rotational direction of the roller and a second radius perpendicular to the first radius, and wherein the driver blade includes a lift tooth having a crown disposed thereon, the crown configured to be engaged with at least one of the plurality of cam portions.

A single-leg height-adjustable table with rotation and height-adjustment functions comprise a table frame comprising a crossbar; a side tabletop fixed on the crossbar, a turnover tabletop rotatably connected with the crossbar, an angle adjuster comprising a first base and a gas spring connected with the first base; wherein the first base is fixed on the bottom surface of the turnover tabletop, and one end of the gas spring is rotatably connected with the crossbar.

The present invention relates to the technical field of rail transit evacuation mechanisms, and particularly to a new type of side door lifting evacuation ladder for urban rail vehicles; it includes a frame assembly, a driving mechanism, a rotating arm assembly, a manual operation device, and a pedal assembly: the frame assembly includes a frame structure, a guide rail slider pair, and a gas spring. The guide rail slider pairs are respectively fixed on both sides of the frame structure to guide the up and down sliding of the pedal assembly. One end of the gas spring is hinged to the frame structure, and the other end of the gas spring is hinged to the first-level pedal of the pedal assembly. The structure achieves the effect that the lifting evacuation ladder can be automatically opened and closed, with simple operation and high automation degree. At the same time, it can be used in emergency situations such as power failure, greatly improving the train's escape and evacuation ability.

A truck bed mounted carrier system includes a frame assembly installable in a truck bed with lateral supports and outer main supports, inner supports that slide within the outer main supports, a center outer support, and a second inner support that slides within the center outer support. A carrier frame coupled to the frame assembly extends from and retracts into the truck bed, supported by radius supports that provide structural integrity when extended. The system features a pulley assist mechanism with gas springs that creates a counterbalance force, a mechanical drive assembly with sprocket and roller chain for movement control, and deployable transport stands for ground support during loading operations. Adjustable bed rail struts with locking mechanisms secure the system to the truck bed without permanent modification. Low-friction materials and strategically positioned slides ensure smooth operation throughout the extension and retraction cycles.

The invention discloses a cold heading forming method for an oil cylinder for a progressive gas spring by upsetting firstly and then gradually extending. The cold heading forming method comprises the following steps: (1) preparing and shaping raw materials; (2) upsetting; (3) indenting; 4) backward extrusion stretching; (5) thin-wall reducing extension one-time forming is carried out; and (6) thin-wall reducing extension secondary forming is carried out. In combination with the characteristics of small overall size, large length-diameter ratio and thin wall and batch production of the oil cylinder for the gas spring, a part with a complex structure is divided into a plurality of simple stations by adopting a method of upsetting first and then gradual extension, and through a process of upsetting, combined extrusion and multi-step diameter-reducing stretching, the length-diameter ratio of the oil cylinder for the gas spring is greatly reduced. And a reducing amount distribution formula based on a strain hardening index and a flow stress model is introduced, so that gradual reduction of the inner and outer diameters of the cylinder body and wall thickness homogenization control are realized. According to the method, on one hand, the product wall thickness uniformity is improved, and the local wall thickness abnormity condition is avoided; and on the other hand, due to the fact that the five-station progressive one-time forming technology is adopted, the auxiliary clamping time is greatly shortened, and therefore the forming efficiency is improved.

The invention discloses a building external wall insulation board convenient to install, and relates to the technical field of building insulation materials, the building external wall insulation board comprises an insulation board body, a vacuum insulation board and expansion bolts, one side of the insulation board body is provided with the vacuum insulation board, and one side of the vacuum insulation board is attached to a wall in a butt joint mode through an adhesive. According to the building external wall insulation board convenient to install, the butt joint mechanism, the self-locking mechanism and the tightening mechanism are arranged in a linkage mode, a fastening pin of the butt joint mechanism is adjusted to drive an inner lock hook and an outer lock hook to clamp a limiting block, and the self-locking mechanism moves along with a guide piece to enable a swing arm to rotate to drive an air spring rod to lock an included angle between a wide supporting arm and the outer lock hook; and a limiting block is fastened through synchronous movement of a clamping plate of the tightening mechanism and an inner lock hook, so that the clamping plate extrudes and pushes two lifting pins to be inserted into the inner wall of a positioning hole of the vacuum heat insulation plate to be used for increasing the anchoring strength, and then it is guaranteed that the outer wall heat insulation plate has the anti-falling protection stable installation effect.

The utility model discloses a normally open solenoid valve for an automobile multi-cavity air spring, which comprises a shell, a framework arranged in the shell, an enameled wire wound on the outer side of the framework, a magnetism isolating tube arranged in an inner hole in the middle of the framework, a movable iron core arranged in the magnetism isolating tube, and a cushion block assembly arranged between the magnetism isolating tube and the end part of the movable iron core, an electrical interface is installed at the end of the shell, a valve seat is installed at the second axial end of the shell, a base is installed between the valve seat and the framework, an ejector rod piece capable of moving axially is arranged at the position, corresponding to the valve port, between the base and the valve seat, the first end of the ejector rod piece penetrates through the base to abut against the movable iron core, and a connecting socket is arranged at the end of the framework. The connecting socket is connected with a PIN needle in the electrical interface, a limiting claw is arranged at the side end of the PIN needle, and after the limiting claw is bent, the enameled wire is pressed and fixed on the PIN needle and is subjected to spot welding. The electromagnetic valve can solve the problems that an electric power connection structure of an existing electromagnetic valve is complex, and power connection is not reliable.

The invention discloses a broken sample anti-adhesion and waste taking device and method under an automatic mode of a tensile testing machine, and relates to the technical field of tensile testing machines. The clamp comprises a clamp body, a horizontal pushing type driving mechanism, a clearance, a gas spring ejection mechanism, a manipulator and a control system. A gap (delta = 30mm) is reserved to form a manipulator operation window, so that the problem of failure in grabbing of the fractured sample is solved; the gas spring ejection mechanism pushes the ejection head to extend out by 3mm with the thrust of 20N, and the adhered sample is forcibly separated; the clamping force of the horizontal pushing type driving mechanism reaches 30 MPa, and the maximum opening stroke exceeds 100 mm. All the components are coordinated through a PLC, the processes of sample feeding, tensile sample breaking treatment and separation and recovery are completed, the clamping face state is detected in real time through a laser obstacle avoidance sensor, and operation safety is guaranteed. Manual intervention is eliminated, the automatic compatible defect is overcome, and the automatic testing efficiency of the tensile testing machine is improved.

A power tool includes an air spring cylinder, a piston movably positioned within the air spring cylinder along a longitudinal axis of the air spring cylinder and a driver blade fixedly attached to the piston. The power tool includes a lifter that is attached to the piston via an elastic member so as to extend side by side with the driver blade. The elastic member serves as a jam bumper that absorbs jam shock due to abnormal tool operation.

A liftable and rotatable jigsaw puzzle table includes a jigsaw bottom plate, a center member provided on the bottom of the jigsaw bottom plate, a sleeve installed in the middle of the center member, a fixed member rotatably installed at bottom of the jigsaw bottom plate, a sleeve rod provided within the sleeve and installed on the top of the fixed member, a ball bearing rotatably provided on the bottom of the sleeve, an annular groove provided at the center member, a plurality of positioning holes evenly provided in the annular groove, a positioning cylinder installed on the fixed member, a positioning rod slidably provided in the positioning cylinder, a top pressure spring installed on the positioning rod, a top pipe at the bottom of the fixed member, a bottom pipe sleeved on the top pipe, and a gas spring in the top pipe and bottom pipe.

The invention discloses a temperature compensation gas spring, and relates to the technical field of gas springs. The gas spring comprises a piston rod assembly, a working cavity, a compensation cavity first part, a compensation cavity second part and a temperature compensation control valve assembly, wherein the piston rod assembly can reciprocate in the working cavity; the compensation cavity first part and the working cavity are arranged in the reciprocating motion direction, and the compensation cavity second part is arranged in the circumferential direction of the working cavity and communicates with the compensation cavity first part; the temperature compensation control valve assembly is located between the compensation cavity first part and the working cavity, and the temperature compensation control valve assembly controls communication between the compensation cavity first part and the working cavity. The low-temperature full-force-value compensation device can achieve the low-temperature full-force-value compensation effect on the basis that the space in the telescopic direction is limited and the stroke of the gas spring is not shortened, is effectively matched with an electric drive supporting system for use, and has the advantages of being easy to manufacture, low in cost and wider in application range.

The automatic assembling device comprises a rack, a first feeding mechanism, a second feeding mechanism and an assembling mechanism, the first feeding mechanism horizontally supplies piston rods through a storage box and a material taking table, the second feeding mechanism supplies pistons through a rotating disc, and the assembling mechanism comprises a linear module, a taking part and a riveting part. A piston rod is taken, placed and rotated through the electric clamping jaw, riveting assembly with a piston is completed through the hydraulic cylinder, so that the assembly efficiency is improved, the driving mode is optimized, rotation of the material taking table, overturning of the clamping jaw and indexing of the rotary table are driven in a linkage mode through linear motion of the motion table, independent driving sources are reduced, and reliability is improved.

The invention discloses a multi-mode energy-feedback type suspension actuator and a control method thereof, relates to the field of suspension actuators, and particularly aims to solve the problem that an oil-gas energy-feedback type suspension actuator combining an oil-gas spring, a linear motor and a piezoelectric material does not exist in the prior art. The multi-mode energy feedback type suspension actuator comprises an actuator shell and a piston rod, the piston rod is movably inserted in the actuator shell, the multi-mode energy feedback type suspension actuator further comprises a partition plate and a magnetism isolating plate which are arranged in the actuator shell, and the piston rod movably penetrates through the partition plate and the magnetism isolating plate; in the actuator shell, oil is poured into the position above the partition plate, a hydro-pneumatic spring module is arranged, a piezoelectric module is arranged between the partition plate and the magnetism isolating plate, and a linear motor module is arranged below the magnetism isolating plate. Several structures are highly integrated, vibration energy is recycled while vehicle performance adjustment is achieved, vehicle running smoothness and handling stability are improved, and self-energy-supply of a vehicle suspension is basically achieved.

The present invention relates to a chest expander including a head, two operating arms of which upper end portions are coupled to the head using rotating shafts, and at least one gas spring disposed between and coupled to the two operating arms by a lower end of the gas spring being rotatably coupled to one operating arm and an upper end of the gas spring being coupled to an upper portion of the other operating arm, wherein a moving hole extending in an arc shape about the lower end of the gas spring is formed in the upper portion of the operating arm, a slider is provided to movably support the upper end of the gas spring along the moving hole, and the slider includes a stopper which fixes the slider.

The utility model relates to the technical field of springs, in particular to a piston balance valve structure and a gas spring, and aims to solve the problem that a common gas spring cannot stay at any position. The piston balance valve structure comprises a cylinder barrel and a valve element, the valve element is inserted into the cylinder barrel, and a first cavity and a second cavity are formed in the two ends of the valve element respectively. The valve element comprises a piston body, a sliding sleeve and a reset spring. The sliding sleeve is sleeved on the piston body; the reset spring is used for applying elastic force to the sliding sleeve; the piston body is provided with a first passage, the sliding sleeve is provided with a second passage, the first passage is communicated with the first cavity, and the second passage is communicated with the second cavity. The valve element moves towards the first cavity to enable the first cavity and the second cavity to generate pressure difference so as to push the sliding sleeve, then the first channel and the second channel are communicated, the elastic force of the reset spring enables the first cavity and the second cavity to generate pressure difference and balance the elastic force, meanwhile, the pressure difference acts on the section of the cylinder barrel to balance loads, and residence at any position is achieved.

The invention relates to a gas pressure spring (50) comprising a working piston (2) which is guided displaceably in a working cylinder (1) along a stroke axis (H), a compensating cylinder (12) which encloses the working cylinder (1), and a compensating piston (10) which is of hollow-cylindrical shape and is guided displaceably in the compensating cylinder (12) along the stroke axis (H). The working cylinder (1) has an open end (1b), at which the compensating cylinder (12) forms a projection (15) beyond the working cylinder (1) with a closed end (15b). The compensating piston (10) separates a working chamber (1a) which is arranged in the working cylinder (1), a compensation chamber (12a) which is arranged between the working cylinder (1) and the compensating cylinder (12), and a restoring chamber (15a) arranged in the projection (15) from one another and is open at an upper side (10a) of the balancing piston (10) facing the working chamber (1a). The gas spring (50) comprises a seal (8) arranged on the upper side (10a) of the balance piston (10) which seals the balance piston (10) to the working cylinder (1) and to the balance cylinder (12).

The present invention relates to a transforming modular trolley and an adjustable axle device for office use, designed to enhance workspace flexibility and ergonomic comfort. The trolley features a modular top assembly with multiple surfaces, including a tilt-able primary work surface, dedicated surfaces for devices and personal items, and integrated storage options. It includes a vertically adjustable axle mechanism for height adjustments, an integrated power management system, and retractable anti-tip stabilizers. The adjustable axle device, available in both gas-spring and electric lift configurations, enables smooth height adjustments and secure locking at user-selected positions, with rotational coupling for customizable orientation. The trolley and axle device are intended for seamless integration into various office environments, offering enhanced usability, stability, and organization. This innovative design addresses the limitations of traditional workstations by providing a compact, mobile solution that supports seated and standing work positions while maintaining a clutter-free workspace.

The invention provides a bridge self-adaptive multi-dimensional vibration reduction support device and a working method, relates to the field of bridges, and aims to solve the technical problems that an existing bridge vibration reduction device is difficult to consider multi-dimensional vibration control and adjustment depends on an external power supply. Vibration mechanical energy is converted into magnetic field energy to act on magnetorheological fluid, a self-adaptive vertical damping adjusting mechanism which does not need external energy and has stronger vibration and larger damping is constructed, and rolling friction energy consumption of friction balls in the transverse vibration reduction assembly and displacement constraint of a limiting ring are combined, so that the vibration reduction effect is improved. The multi-dimensional control over the vertical direction, the horizontal direction and the torsion is achieved through the combined deformation energy dissipation of a vibration reduction spring and a limiting cable in the torsion vibration reduction assembly, the problems that a traditional bridge vibration reduction support is single in function, cannot be adjusted in a self-adaptive mode and fails in power failure are effectively solved, and the anti-vibration safety and the operation stability of the structure in the complex power environment are improved.

The invention provides an air spring upper supporting structure, an air spring and a vehicle, and belongs to the technical field of suspension systems. The scheme that the top rubber, the blocking cover and the check ring are arranged on the upper supporting body is achieved through the arrangement of the installation groove, the reliability of matching with the piston rod can be guaranteed, and the compactness of the upper supporting structure of the air spring can be improved. The threaded sleeve is arranged in the mounting hole, so that structural damage to the area where the mounting hole is located can be effectively avoided, and the service life of the upper supporting structure of the air spring is prolonged. By arranging the heat insulation pad, the problem that the whole air spring is seriously heated due to the fact that the upper supporting body absorbs excessive heat is solved, and the service life of a rubber part in the air spring is shortened. The arc-shaped flow guide faces are arranged at the corners of the first air channel and the second air channel, so that vortexes are avoided, friction is reduced, and the problem of abnormal sound generated by air flowing is solved. Double connection of the threads and the positioning pins is adopted between the mounting hole and the threaded sleeve, so that the anti-loosening strength and the torsional strength of the threaded sleeve are enhanced, and the threaded sleeve is prevented from loosening.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle, an outer rim surrounding the inner rim. A rigid cover ring may be coupled to the outer rim and extend radially inward toward the inner rim. Gas springs may be operatively coupled between the inner and outer rims to provide a gas suspension for relative movement between the inner and outer rims. Fastener assemblies fasten the rigid cover ring to the outer rim, fastening each gas spring to the outer rim, or fastening each gas spring to the outer rim. Each fastener assembly may include a fastener and a pair of indicator-lock washers carried by the fastener. Each indicator-lock washer may have respective sloped surfaces slidably engaging one another to permit relative rotation so that loosening from a fully tightened position exposes a gap.

A device for wall mounting a display including a mount assembly and a swivel mechanism assembly. The mount assembly includes a television mounting portion and an extending / contracting portion and the swivel mechanism assembly moveable between a first and a second configuration and including a biasing component. The extending / contracting portion includes a lower arm, an upper arm, a front bracket, a wall mounting bracket, one or more gas springs, and a linear actuator. The one or more gas springs and the linear actuator may lower and raise the television mounting portion. The biasing component is configured to bias the television mounting portion to swivel in a first or a second direction when the swivel mechanism assembly is in the first configuration when the display mounting portion is lowered. The mount assembly may include a set screw to set a swivel stop for the first and the second swivel directions.

A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston / driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

The automatic feeding device and method for integrated air spring molding described in this invention proposes a feeding and calibration device specifically for platform-type molding machines. This device achieves directional feeding through continuous, automated control of sheet loading and calibration positioning, enabling sheet introduction and placement without manual intervention or assistance. This approach aims to automate the air spring molding process, improve the bond density of the preform, and enhance the performance of the air spring. The automatic feeding device for integrated air spring molding includes a suction assembly driven by a six-axis robot to oscillate the transfer fabric, as well as a visual inspection and positioning assembly.

The utility model discloses a base structure of an air spring, which comprises a base body and a backing ring, a plurality of elastic fasteners are circumferentially distributed on the inner wall of the lower portion of the base body in a surrounding manner, and the elastic fasteners protrude towards the center of the base body. The upper end of the backing ring can be clamped at the lower end of the elastic buckle, then the backing ring can be clamped in the base body, and the upper end face of the clamped backing ring is lower than or flush with the upper end face of the base body. Therefore, the connection of the base body and the backing ring does not occupy the axial space, the minimum thickness of the air spring base can reach a design value of 3mm, the overall height of the air volume of the air spring can be increased, and the volume is increased to the maximum extent; and the height size gap between the piston and the backing ring can be maximized, so that the air spring is prevented from bending up and down and interference between the backing ring and the piston is avoided.