1175 results about "Air spring" patented technology

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.

Air springs for bicycle components are described herein. An example air spring includes a tube, a first sealhead coupled to the tube, a second sealhead coupled to the tube such that a sealed pressure chamber is formed in the tube between the first and second sealheads, and a seal coupled to the second sealhead. The second sealhead and the tube are coupled along an axial interface locking length. The tube has a vent port. The seal is spaced from the vent port by a port seal gap that is less than the axial interface locking length such that as the second sealhead is being decoupled from the tube, the seal loses sealing contact with the inner surface to enable at least a portion of the sealed pressure chamber to be equalized with atmospheric air before the second sealhead is fully decoupled from the tube.

The invention belongs to the technical field of prefabricated part pouring, and particularly relates to a vibration platform for prefabricated part pouring. Comprising a conveying roller way, a material box, a vibration platform and a plurality of adjusting devices, the vibration platform is connected with a rack of the conveying roller way through an air spring, a rectangular through hole is formed in the top end of the vibration platform, the adjusting devices are arranged in the rectangular through hole and comprise hydraulic cylinders and U-shaped adjusting plates, and the hydraulic cylinders drive the U-shaped adjusting plates to adjust the height of the material box. Through cooperative control of the adjusting device driven by the hydraulic cylinder and the displacement sensor, automatic adjustment of the levelness of the material box is achieved. According to the structure, no matter what working condition is, the bottom face of the material box can be completely attached to the vibration transmission face of the vibration platform, and uniform and efficient vibration energy transmission is achieved. According to the vibration platform, the technical problems that an existing vibration platform inclines due to the nonlinear characteristic of a supporting device, and contact of the workbins is uneven are solved, it is guaranteed that pouring materials are even and dense, and the finished product quality of prefabricated parts is effectively improved.

The application provides an air suspension system and a vehicle. The air suspension system comprises a first air spring, a second air spring and a gas storage component, and further comprises: a first electromagnetic switch valve connected to the first air spring; a second electromagnetic switch valve connected to the second air spring; a third electromagnetic switch valve connected between the first electromagnetic switch valve and the gas storage component; and a fourth electromagnetic switch valve connected between the second electromagnetic switch valve and the gas storage component. When the first electromagnetic switch valve, the second electromagnetic switch valve, the third electromagnetic switch valve and the fourth electromagnetic switch valve are all powered on, the first electromagnetic switch valve and the third electromagnetic switch valve form a first gas path with the gas storage component, the second electromagnetic switch valve and the fourth electromagnetic switch valve form a second gas path with the gas storage component, the gas storage component inflates the first air spring through the first gas path, and the gas storage component inflates the second air spring through the second gas path, so that the body height of the front axle and the rear axle of the vehicle can be synchronously lifted.

The invention relates to a self-adaptive tuning inerter damping device and method for suppressing vertical micro-vibration of a structure. The self-adaptive tuning inerter damping device comprises a bearing base, a tuning mass block, a vibration system connecting the bearing base and the tuning mass block, a pneumatic control system and an intelligent measurement and control system. The vibration system is formed by connecting an outer side air spring set and a central air spring in series with a hydraulic inerter unit, an adjustable damping branch and a fixed inerter branch which are connected in parallel are integrated in the hydraulic unit and are respectively provided with an electro-hydraulic proportional valve and a spiral pipe type hydraulic inerter, so that adjustable damping and mass amplification are realized. The pneumatic system adjusts the air pressure of each air spring through an independent air path and a proportional valve so as to change the rigidity. An intelligent system monitors vibration through a sensor, a central controller identifies excitation frequency and optimizes parameters based on a kinetic model, and rigidity and damping are synchronously adjusted. According to the invention, the problem that a mechanical inerter is insufficient in response to micro-vibration is solved, the defects that a traditional passive device is narrow in frequency band and easy to detune are overcome, and broadband, self-adaptive and high-performance suppression of vertical micro-vibration of a structure is realized.

The invention provides an air spring supporting ring assembling method and assembling tool, and the assembling method comprises the steps that the two ends of a leather bag are placed into a clamping mechanism respectively to be clamped and sealed, and a supporting ring is stuffed into the leather bag in the leather bag clamping process; the leather bag in the sealed state is inflated and pressurized, so that the leather bag is expanded to be larger than the supporting ring in diameter, and the supporting ring falls onto the end face of the clamping mechanism at the bottom end of the leather bag; after the leather bag is deflated and decompressed, the leather bag is taken down from the clamping mechanism, at the moment, the leather bag restores and wraps the supporting ring, and assembling of the supporting ring is completed. The leather bag is clamped and sealed through the clamping mechanisms at the upper end and the lower end of the leather bag, the supporting ring stuffed into the leather bag falls to the corresponding assembling position on the horizontal end face of the bottom in cooperation with the inflation expansion process, and then the supporting ring is wrapped through deflation contraction of the leather bag to complete assembling. The problems that a supporting ring in an air spring leather bag is difficult to adjust in position during assembly, time and labor are consumed during operation, assembly difficulty is large, and batch production is not suitable are solved.

The invention discloses an air spring air chamber screw embedding device which comprises a feeding mechanism arranged on one side of a preheating mechanism, and a first transferring mechanism is arranged between the feeding mechanism and the preheating mechanism; the second transferring mechanism is connected to the machine table, and the feeding end of the second transferring mechanism is connected with a coding mechanism. The industrial robot A is arranged on one side of the injection molding machine, and the execution end of the industrial robot A is connected with a second manipulator; the third transfer mechanism is arranged on one side of the second transfer mechanism, an industrial robot B and a detection mechanism are arranged on the two sides of the second transfer mechanism, and the execution end of the industrial robot B is connected with a third manipulator; a fourth mechanical arm is connected to the fourth transferring mechanism, and a weighing mechanism and a discharging mechanism are arranged on the portion, below the fourth transferring mechanism, of the machine table. Compared with the prior art, feeding, preheating, embedding, coding, detecting, weighing and discharging are integrated, time and labor are greatly saved, the working efficiency is improved, and meanwhile the product quality is guaranteed.

The invention relates to the technical field of new energy automobile air suspensions, and particularly discloses a heat-resistant ozone-resistant air spring outer layer rubber material. The rubber material is prepared from natural rubber, chlorosulfonated polyethylene rubber, ethylene-vinyl acetate rubber, high-activity magnesium oxide, stearic acid, an anti-aging agent, microcrystalline wax, tert-butylphenol formaldehyde resin, reinforcing filler, a plasticizer, zinc oxide, a vulcanizing agent and an accelerant. The invention also discloses a preparation method of the sizing material. The heat-resistant ozone-resistant air spring outer layer rubber material disclosed by the invention has good heat resistance, cold resistance and ozone aging resistance, and also has the advantages of wide application environment range and long service life.

The invention discloses a stiffness regulating valve for a multi-cavity air spring, and relates to the technical field of automobile control equipment, the stiffness regulating valve is used for regulating the size of an opening at a communicating air passage of the air spring, the stiffness regulating valve comprises a shell and a motor arranged in the shell, a screw rod and a piston are arranged in the shell, one end of the screw rod is connected with the motor, and the other end of the screw rod is connected with the piston. The other end of the lead screw is fixedly connected with a piston, and the position of the piston corresponds to the communicating air channel. The motor comprises a stator and a rotor, a transmission threaded hole is formed in the rotor along the axis, and the lead screw is meshed with the transmission threaded hole to form transmission connection. Through the unique structural design, the motor directly drives the lead screw to conduct transmission, the transmission precision is improved, the lead screw is arranged in the motor rotor, the axial size space of the valve body is greatly saved, high integration is achieved, the space utilization rate is improved, and the machining cost is reduced.

The invention discloses an air suspension rigidity self-adaptive adjusting system based on double-temperature feedback. The data monitoring and collecting module is used for monitoring and collecting the gas temperature in an air spring airbag cavity, the rubber temperature of the outer surface of an airbag, the gas pressure in the air spring airbag cavity, the gas volume in the air spring airbag cavity, the airbag height and the current vehicle working condition. The coupling rigidity calculation module is used for establishing a rubber rigidity model and calculating the rubber rigidity according to the rubber body temperature of the outer surface of the airbag and the airbag height; the inflation and deflation control module is used for generating target total rigidity according to the current vehicle working condition, calculating target gas pressure in the air spring airbag cavity according to the target total rigidity, the rubber rigidity, the gas temperature in the air spring airbag cavity and the gas volume in the air spring airbag cavity, and sending an inflation and deflation control instruction to inflation and deflation equipment; and the air pressure Pg in the air spring airbag cavity reaches the target air pressure in the air spring airbag cavity.

The invention discloses an air spring damping device with a vehicle body posture compensation function, and relates to the technical field of vehicle air spring damping. A piezoelectric ceramic stack main shaft assembly, an active variable stiffness spiral spring assembly arranged at the bottom of the piezoelectric ceramic stack main shaft assembly and a non-Newtonian fluid damping cavity assembly arranged at the bottom of the active variable stiffness spiral spring assembly are sequentially and coaxially arranged from inside to outside. The whole body is coordinated under the unified scheduling of a micro central controller, so that the piezoelectric stack outputs reverse-phase force to accurately counteract the impact, the spiral spring locks the number of turns through the actuating nut to realize the rigidity step improvement, and the non-Newtonian fluid instantaneously changes the viscosity through excitation to filter vibration. By means of formed synchronous cooperation, full-band road excitation is achieved, optimal composite compensation from high-frequency fine vibration to single large impact is achieved, and the contradiction between comfort and controllability is thoroughly solved.

The invention relates to the technical field of vehicle mass measurement, in particular to a vehicle mass estimation method, device and equipment and a storage medium. The method comprises the steps that the effective bearing area of the air spring, the effective rigidity of the mechanical spring and the unsprung and compensation mass are obtained; collecting the current deviation height of the air spring and the current air pressure intensity in an air spring cavity through a sensor; calculating the first mass of the compressed air spring according to the effective bearing area, the current gas pressure and the gravitational acceleration; calculating a second mass of the compression mechanical spring according to the effective rigidity, the current offset height and the gravitational acceleration; and according to the first mass, the second mass, the unsprung mass and the compensation mass, the estimated whole vehicle mass is obtained. According to the invention, the technical effects of high precision, real-time performance, simple system integration and high environmental adaptability can be achieved when the mass of the whole vehicle is estimated.

The utility model belongs to the technical field of shock absorber detection equipment, and particularly relates to an electromagnetic shock absorber test bed, which comprises a bottom plate, a guide post, a lifting locking cross beam, a second driving cylinder, an electromagnetic driving mechanism, a static load supporting mechanism and a cooling structure, the height of the lifting locking cross beam is adjusted through the second driving cylinder, locking is carried out through driving of the first driving cylinder, and adaptive installation of the to-be-tested shock absorber is ensured; the electromagnetic driving mechanism drives the coil connecting piece and the actuating rod to apply accurate pressure to the shock absorber by controlling the magnitude and the direction of the current of the motor coil, so that the high-precision test of the performance of the shock absorber is realized; the static load supporting mechanism is composed of an air tank and an air spring and provides constant supporting force for the shock absorber, and the stability and accuracy of a test result are effectively improved. The cooling structure achieves heat dissipation through the multi-layer design of an air conditioner, a connecting plate, an external baffle and an air guide plate, and the electromagnetic driving mechanism is prevented from being overheated.

A method for regulating an air suspension system of a stationary motor vehicle, includes comparing a predetermined target level position with an actual level position of the vehicle; determining an actual air quantity in at least a number of air springs of the air suspension system and comparing the actual air quantity with a reference air quantity. If the actual level position falls below the target level position and the determined air quantity falls below the reference air quantity, the air springs of the air suspension system are then filled while the actual level position is monitored. If the actual level position continues to be below the target level position or the actual level position does not change, the filling of the air springs is carried out only until the reference air quantity corresponding to the target level position is reached as the actual air quantity in the air springs.

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.

This invention discloses a method for analyzing the meridional strain of air springs based on piecewise integration of elliptical arc length, belonging to the technical field of vehicle suspension systems or rubber elastic elements design. The method includes the following steps: approximating the arc segment from the top of the air spring generatrix to the outermost bulge point as the first quadrant of an ellipse, determining the major and minor semi-axes of the reference and inflation states; introducing normalized coordinates to establish a linear mapping of the abscissas of the two states, constructing an elliptical arc length infinitesimal element and transforming it to the same interval for integration; dividing the interval into even-numbered equal parts, using the complex Simpson method to obtain the arc length piecewise, calculating the ratio of the inflation arc length to the reference arc length as the elongation ratio, and taking the natural logarithm to obtain the true meridional strain of each segment of the generatrix; this invention can accurately describe the non-uniform deformation of each segment of the generatrix during air spring inflation, providing a basis for strain prediction and fatigue assessment.

This is a trailer with independent half-axle suspension, the supporting structure of which consists of a frame (1), a split central support tube (2), and a chassis (3) with independently suspended running wheels (6). The chassis (3) comprises a front axle (31) with an integrated front transfer case (311) and pivotally mounted portal half-axles (312), and at least one rear axle (32) with an integrated rear transfer case (321) and pivoting rear half-axles (322). The support tube (2) is connected to the frame (1) via cross members (4). The solution consists in the support tube (2) being composed of a two-part front section (21) and rear sections (22) arranged at different heights, with the front section (21) being mounted higher than the rear section (22).and that the rear section (22) of the support tube (2) is provided with at least one intermediate plate (41) for the stepped connection of the axles (31) and (32) with the front section (21) of the support tube (2), which connects the support tube (2) to the front transfer case (311), wherein brake flanges (81) with brake carriers (82) for attaching the brake system of the trailer wheelset are attached at the ends of the half-axles (312) extending laterally from the front transfer case (311), and an independent wheel suspension (7) of the wheels (6) of the chassis (3) is mounted on the half-axles (312), which is attached to the underside of the frame (1) and is based on a bellows air spring (71), and an adjustable, vertically oriented trailer coupling (5) is attached to the end part of the front section (21) of the support tube (2).

The utility model discloses a double-rod lifting table, which belongs to the technical field of lifting tables and comprises a bottom frame, two groups of bottom pipes are fixedly connected onto the bottom frame, telescopic pipes are slidably connected in the two groups of bottom pipes, and air springs and mounting components thereof are arranged in the two groups of bottom pipes and the telescopic pipes. A support is fixedly connected to the top ends of the two telescopic pipes, a table plate is fixedly connected to the top of the support, an abutting column is fixedly connected to the bottom end of the stabilizing rod, threads are arranged at one end of the abutting column, a limiting base is fixedly connected to one side of the outer wall of the bottom pipe, the abutting column is located in a hole in the limiting base, and a rotary knob is in threaded connection to one end of the abutting column. According to the lifting table, through the arrangement of the stabilizing rod, the limiting base, the abutting column and the rotary knob, the load bearing capacity of the position, away from a double-rod supporting point, of the table board can be improved, the using effect of the lifting table is improved, and meanwhile the using stability of the table board can be improved.

The utility model relates to the technical field of air springs, and provides an air spring assembly and an air suspension system. The air spring assembly comprises an air bag and a piston assembled at the end of the air bag. The cushion block is arranged at the first end, away from the air bag, of the piston, the first end of the piston is provided with a limiting cavity, the cushion block is provided with a channel communicating with the limiting cavity, and the first end, away from the piston, of the cushion block is provided with a mounting part; the connecting piece comprises a head part and a rod part, the head part extends into the limiting cavity and is limited by the second end, close to the piston, of the cushion block, and the rod part penetrates through the channel and extends out. According to the air spring assembly, through cooperation of the cushion block, the connecting piece and the piston, the air spring assembly can be suitable for scenes with different suspension heights so as to adapt to different vehicle models, flexible connection is provided so as to adapt to dynamic working conditions of vehicles, meanwhile, the service life of parts is prolonged, and the working performance of the air spring assembly is improved.

The utility model provides an automatic cutting machine for an air spring leather bag. Comprising a mounting frame, a first driving device, a control device, a steering transmission device, a divider, a divider turntable, a rotating shaft mounting seat, a mold mounting rotating shaft, a first leather bag mold, a second leather bag mold, a mold pressing piece, a distance measuring scanner, a mold connecting rotating shaft, a rotating shaft clutch structure and a cutter device. When the air spring leather bag is cut, the leather bag is arranged on the mold in a sleeving mode, and the mold is driven by the divider rotating disc to rotate to the cutting position and then stops rotating; the mold pressing piece descends, is connected with the mold and presses downwards, so that the mold is switched to an expansion state; the distance measuring scanner indicates the parting line position, and the rotating shaft clutch structure drives the mold connecting rotating shaft to be combined with the mold mounting rotating shaft; after combination, the rotating shaft driving structure drives the mold to rotate; the cutter device is used for cutting the leather bag; according to the cutting machine, the leather bag can be automatically cut, the production efficiency and the notch quality are improved, and the labor intensity of workers is reduced.

1. The name of the design product: air compressor. 2. The use of the design product: the air compressor provides compressed air for air spring vehicles with air suspension systems. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This application relates to a shock absorber assembly, a suspension assembly, and a vehicle. The shock absorber assembly includes an air spring with an air chamber; an actuator for adjusting the length of the air spring; and a connecting cable for transmitting power or signals. A wiring channel is formed between the air spring and the actuator for the connecting cable to pass through. The advantage of this application is that by providing a wiring channel between the air spring and the actuator, the internal space of the air spring can be effectively utilized, thereby significantly reducing the volume of the shock absorber assembly and improving its integration.

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.

This speaker system provides high-quality sound reproduction through a novel configuration that suppresses the air spring effect. [Solution] The speaker device of the present invention comprises a housing 1 having a baffle plate 2 on which a speaker unit 3 that vibrates in response to an input electrical signal and outputs sound waves is mounted, and an opening 4 is provided on the bottom surface. A predetermined amount of granular material 6, placed parallel to the opening end 5, closes the opening 4 of the housing 1. Granular material 6 is interposed in the path from the internal space to the external space of the enclosure 1, creating a structure in which the air inside the enclosure 1 is acoustically connected to the outside atmosphere via the granular material 6. This configuration suppresses the air spring effect, making it possible to provide a speaker device that achieves high-quality sound reproduction with low distortion.

The present invention discloses a liftable rubber bearing with an air spring, belonging to the technical field of bridge shock absorption. It includes an upper pier and a lower pier arranged oppositely, and the upper pier and the lower pier are connected by support columns. The support columns include connecting cylinders, rubber bonding blocks and a number of air elastic columns. The connecting cylinder is provided with a number of uniformly distributed air elastic columns penetrating along its circumferential direction. The air elastic columns can extend or shorten along the axis direction of the support column, and the connecting cylinder is filled with the rubber bonding blocks. By arranging a number of air elastic columns that can expand and contract along the axis direction of the support column in the circumferential direction of the support column, using the elastic characteristics of the air elastic columns, as the vibration load of the rubber bearing increases, the bearing capacity of the rubber bearing increases, and the air elastic columns can suppress the vibration amplitude and avoid resonance. When the impact load increases, the stiffness also becomes larger, ensuring a good vibration isolation effect.

This application discloses an air suspension control system with a load connector, relating to the field of air suspension technology. By adding an external load interface and controlling the opening and closing of the air circuit through an electronically controlled pressure-limiting valve, it is possible to inflate an external load. The air suspension control system includes: an air supply valve unit, an air silencer filter dryer, an air tank, and multiple air springs. The air supply valve unit includes a manual vent bolt, an electronically controlled pressure-limiting valve, and a dryer tank. The air supply valve unit is equipped with a first air inlet, a second air inlet, a third air inlet, a fourth air inlet, and multiple fifth air inlets. The manual vent bolt is connected to the first air inlet, the electronically controlled pressure-limiting valve is connected to the second air inlet, and the dryer tank is connected to the third air inlet. The air inlet and outlet of the air silencer filter dryer are connected to the fourth air inlet. The air tank is connected to the dryer tank through the third air inlet. Each of the multiple air springs is connected to one of the multiple fifth air inlets.

This utility model belongs to the technical field of automotive air suspension systems, specifically relating to an air circuit system for air suspension, which helps to reduce the number of solenoid valves. The air inlet is connected to the piston pump inlet via air passage a, the piston pump outlet is connected to the dryer tank inlet via air passage b, air passage c is provided at the dryer tank outlet, air passage d is connected to the quick-connect fitting of the air tank, air passage d is connected to air passage a via air passage e, air passage d is connected to air passage c via air passage f, air passage g is connected to the quick-connect fitting of the air spring, air passage g is connected to air passage a via air passage h, air passage g is connected to air passage c via air passage i, and air passage c is connected to the exhaust port via air passage j. A solenoid valve I is installed on the valve block to control the switching of air passage h and air passage i with air passage g, respectively; a solenoid valve VI is installed on the valve block to control the switching of air passage e and air passage f with air passage d, respectively; and a solenoid valve VII is installed on the valve block to control the opening and closing of air passage j.

The utility model discloses an exhaust structure of an air spring dust cover, which relates to the technical field of air spring dust covers and comprises a dust cover body and an exhaust mechanism. The exhaust mechanism comprises a connector assembly and a connecting cover. A clamping piece is arranged on the joint assembly; the dustproof cover body and the connector assembly are used in a matched mode, redundant air pressure in an air spring assembly system is effectively exhausted, deformation of the dustproof cover is prevented, the dustproof cover body and the connector assembly are connected together in a gluing and press fitting mode, the production process is simple and firm, the welding process is reduced, cost is saved, and production efficiency is improved. The connecting cover and the connector assembly are connected to prevent impurities and the like from entering the dust cover in the packaging and transporting process of the dust cover body, the situation that the dust cover body is assembled on the air spring assembly to affect the performance of the air spring assembly is avoided, and the connecting stability between the connecting cover and the connector assembly can be improved through the clamping piece and the clamping part; the connecting cover and the connector assembly are prevented from falling off and being separated in the transportation process of the dust cover body.

This invention discloses a method for resisting the creep of an auxiliary spring and compensating for height loss due to creep. It uses a mandrel as a base to establish a pneumatic auxiliary support for the auxiliary spring. During application, this support shares the load and impact on the auxiliary spring, and when the auxiliary spring creeps and loses height, it is inflated with gas to compensate for the height loss. Furthermore, the space between the support plate and the mandrel is sealed to form an outer cavity, and a sealed inner cavity is set within the mandrel, connecting the outer and inner cavities. Both cavities are then pressurized to a set pressure value. This slows down the creep process of the auxiliary spring and compensates for height loss after creep occurs. Throughout the entire lifespan of the air spring, the rubber air bladder does not need to be inflated to compensate for the height loss of the auxiliary spring, thus ensuring that the entire air spring maintains its ideal original stiffness.

The utility model relates to the technical field of suspensions, in particular to an integrated rear suspension air suspension device for a passenger car, which comprises C-shaped beams which are symmetrically arranged and connected through reinforcing components, each C-shaped beam is composed of a straight middle section and an arc transition section connected with the middle section, and the arc transition sections are connected with the middle section. The reinforcing assembly is connected with the arc transition section, and the reinforcing assembly is a supporting part composed of reinforcing beams which are symmetrically arranged; the damping part is arranged above the supporting part and comprises a damper arranged at the end part of the C-shaped beam and an air spring arranged between the damper and the reinforcing assembly; the stabilizing part is arranged at the middle section of the C-shaped beam and comprises longitudinal thrust rods which are symmetrically arranged on the side surface of the middle section of the C-shaped beam, inclined thrust rods which are arranged between the longitudinal thrust rods and are arranged in a V shape, and a U-shaped stabilizing rod of which the end part is arranged at the top of the middle section of the C-shaped beam, so that the stability of the rear suspension air suspension is improved.