Air spring upper mounting seat, air spring, shock absorber and vehicle

Abstract

The invention relates to an air spring upper mounting base, an air spring, a shock absorber and a vehicle. The air spring upper mounting base comprises a mounting base body internally provided with a plurality of inflation cavities. The hollow guide pipe is provided with vent holes corresponding to the air inflation cavities, and the air inflation cavities are communicated with the hollow guide pipe through the corresponding vent holes; one end of the hollow guide pipe is an air inlet end, and the air inlet end penetrates through and is connected to the mounting seat body and is used for introducing external air into the air inflation cavity; the sliding sealing piece is arranged in the hollow guide pipe, and the sliding sealing piece slides in the hollow guide pipe to seal or open the vent hole; the adjusting assembly is arranged on the hollow guide pipe and used for adjusting the sliding position of the sliding sealing piece in the hollow guide pipe. Under the fixed volume and rigidity, the sliding sealing piece is controlled to seal or open the corresponding ventilation hole in the hollow guide pipe in a sliding mode, so that more refined rigidity adjustment can be conducted under the set volume space.

Description

Technical Field

[0001] The present invention relates to the technical field of air springs, and particularly relates to an upper mounting seat for an air spring, an air spring, a shock absorber and a vehicle. Background Art

[0002] Since air springs can better meet the requirements of vehicle ride comfort and stability, air springs are more commonly used in vehicle shock absorbers. Air springs are basically divided into three categories: single-chamber air springs, double-chamber air springs and multi-chamber air springs. The stiffness of a single-chamber air spring is non-variable and cannot meet the vehicle usage requirements. The double-chamber air spring and multi-chamber air spring utilize different chambers corresponding to different stiffnesses, and it is difficult to obtain a more refined stiffness adjustment within a given volume space. Summary of the Invention

[0003] One of the purposes of the present invention is to provide an upper mounting seat for an air spring to solve the problem that it is difficult for the existing air springs to obtain a more refined stiffness adjustment within a given volume space; the second purpose is to provide an air spring; the third purpose is to provide a shock absorber; the fourth purpose is to provide a vehicle.

[0004] In order to achieve the above purposes, the technical solutions adopted by the present invention are as follows:

[0005] An upper mounting seat for an air spring, comprising:

[0006] A mounting seat body with multiple built-in inflation chambers; a hollow conduit, on which ventilation holes corresponding to the inflation chambers are provided, and the inflation chambers are communicated through the corresponding ventilation holes and the hollow conduit; one end of the hollow conduit is an air inlet end, and the air inlet end is connected to the mounting seat body for introducing external gas into the inflation chambers; a sliding seal arranged in the hollow conduit, which is used to slide in the hollow conduit to seal or open the ventilation holes; an adjusting assembly arranged on the hollow conduit for adjusting the sliding position of the sliding seal in the hollow conduit.

[0007] Further, the sliding seal includes an elastic member and a sliding block,

[0008] One end of the elastic member is fixed to the air inlet end, and the other end is connected to the sliding block; the sliding block slides in the hollow conduit under the action of the elastic member.

[0009] Further, the elastic member includes: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end, and the other end is connected to the sliding block; when the helical cylindrical spring is in a free state, all the ventilation holes are in an open state.

[0010] Further, the adjustment component includes a coil and a power-on component,

[0011] The coil is sleeved on the hollow conduit; both ends of the coil are connected to the power-on component, and the coil is used to adjust the sliding position of the sliding seal in the hollow conduit when the power-on component is powered on.

[0012] Further, the coil is wound and fixed on the outer side of the hollow conduit or arranged and fixed on the inner side of the hollow conduit.

[0013] Further, the volumes of the inflation chambers are the same, and the ventilation holes are evenly distributed on the hollow conduit.

[0014] Further, the mounting seat body includes an upper shell and a lower shell connected to each other. An upper rib is provided on one side of the upper shell close to the lower shell, and a lower rib is provided on one side of the lower shell close to the upper shell; when the upper shell and the lower shell are connected, the upper rib and the lower rib abut against each other to divide the mounting seat body into a plurality of inflation chambers.

[0015] Further, a mounting groove is provided at the connection of the upper rib and the lower rib, and the hollow conduit is snap-fitted in the mounting groove.

[0016] Further, it further includes: a reinforcing member provided on the upper shell.

[0017] An air spring includes the air spring upper mounting seat as described above.

[0018] A shock absorber includes the air spring as described above.

[0019] A vehicle includes the shock absorber as described above.

[0020] Advantages of the present invention:

[0021] In an embodiment of the present invention, there is a mounting seat body with multiple built-in inflatable cavities; a hollow conduit, on which ventilation holes corresponding to the inflatable cavities are provided, and the inflatable cavities are communicated through the corresponding ventilation holes and the hollow conduit; one end of the hollow conduit is an air inlet end, which is connected to the mounting seat body for introducing external gas into the inflatable cavities; a sliding seal is arranged in the hollow conduit, which is used to slide in the hollow conduit to seal or open the ventilation holes; an adjusting assembly is arranged on the hollow conduit for adjusting the sliding position of the sliding seal in the hollow conduit. It is possible to more finely adjust the stiffness by controlling the sliding seal to slide in the hollow conduit to seal or open the corresponding ventilation holes under a fixed volume and stiffness, so that a single-chamber air spring can also meet more refined vehicle performance requirements. And by adjusting the stiffness through the positions of the ventilation holes, the hollow conduit and the sliding seal, without using a solenoid valve, the volume of the mounting seat on the air spring can be effectively reduced, facilitating the setting of the installation position in the vehicle chassis, improving the practicability, reducing the complex control process of the solenoid valve, and improving the stiffness adjustment efficiency of the air spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. is an exploded view of the structure of an embodiment of a mounting seat on an air spring according to the present invention;

[0023] Figure 2 FIG. is a schematic structural view of a hollow conduit of an embodiment of a mounting seat on an air spring according to the present invention Figure 1 ;

[0024] Figure 3 FIG. is a schematic structural view of a hollow conduit of an embodiment of a mounting seat on an air spring according to the present invention Figure 2 ;

[0025] Figure 4 FIG. is a schematic structural view of an elastic member of an embodiment of a mounting seat on an air spring according to the present invention;

[0026] Figure 5 FIG. is a schematic structural view of a sliding block of an embodiment of a mounting seat on an air spring according to the present invention;

[0027] Figure 6 FIG. is a schematic structural view of a coil of an embodiment of a mounting seat on an air spring according to the present invention;

[0028] Figure 7 FIG. is a schematic structural view of an upper housing of an embodiment of a mounting seat on an air spring according to the present invention;

[0029] Figure 8 FIG. is a schematic structural view of a lower housing of an embodiment of a mounting seat on an air spring according to the present invention Figure 1 ;

[0030] Figure 9 Structural schematic of the lower housing of an embodiment of the mounting seat on an air spring according to the present invention Figure 2 ;

[0031] Figure 10 Structural schematic of the reinforcing member of an embodiment of the mounting seat on an air spring according to the present invention.

[0032] Description of reference numerals: 100 - mounting seat body, 110 - inflation chamber, 120 - upper housing, 130 - lower housing, 140 - mounting groove, 200 - hollow conduit, 210 - ventilation hole, 220 - intake end, 300 - sliding seal, 310 - elastic member, 320 - sliding block, 400 - adjustment assembly, 410 - coil, 420 - energization assembly, 500 - reinforcing member. Detailed implementation manners

[0033] The following will describe the implementation manners of the present invention with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention and not for limiting the protection scope of the present invention.

[0034] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0035] Referring to Figure 1 , an exploded view of the structure of an embodiment of the mounting seat on an air spring according to the present invention is shown. The mounting seat on the air spring may specifically include the following structures:

[0036] A mounting base body 100 with multiple inflatable cavities 110; a hollow conduit 200, on which there are ventilation holes 210 corresponding to the inflatable cavities 110, and the inflatable cavities 110 are communicated through the corresponding ventilation holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 is connected to the mounting base body 100 for introducing external gas into the inflatable cavities 110; a sliding seal 300 arranged in the hollow conduit 200, and the sliding seal 300 is used to slide in the hollow conduit 200 to seal or open the ventilation holes 210; an adjusting assembly 400 arranged on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200.

[0037] The upper mounting seat of the air spring may include a mounting base body 100, a hollow conduit 200, a sliding seal 300 and an adjusting assembly 400. The mounting base body 100 is the bearing foundation. The hollow conduit 200, the sliding seal 300 and the adjusting assembly 400 are directly or indirectly installed in the mounting base body 100. There are multiple inflatable cavities 110 inside the mounting base body 100. The inflation amount of each inflatable cavity 110, that is, the volume of each inflatable cavity 110, may be the same or different, and the embodiments of the present invention do not make specific limitations. Compressed air can be filled into each inflatable cavity 110. Each inflatable cavity 110 is isolated from each other. Reference can be made to Figure 2 and Figure 3, the hollow conduit 200 is a thin-walled part with a hollow interior and a smooth inner wall surface. One end of the hollow conduit 200 is the air inlet end 220, and the air inlet end 220 is connected to the mounting seat body 100. The hollow conduit 200 is provided with ventilation holes 210 corresponding to the inflation chambers 110, that is, the number of inflation chambers 110 is the same as that of the ventilation holes 210, and the inflation chambers 110 and the ventilation holes 210 correspond one by one. The inflation chambers 110 are connected through the corresponding ventilation holes 210 and the hollow conduit 200. That is, the air flow path between two inflation chambers 110 is that the air in the first inflation chamber 110 enters the hollow conduit 200 through the corresponding ventilation hole 210. Due to the hollow structure of the hollow conduit 200, it flows to the ventilation hole 210 corresponding to the second inflation chamber 110 and enters the second inflation chamber 110 through this ventilation hole 210. Correspondingly, during inflation, external air enters the hollow part inside the hollow conduit 200 through the air inlet end 220 of the hollow conduit 200, and then enters the corresponding inflation chamber 110 through each opened ventilation hole 210. It can be seen that when the ventilation hole 210 is in the open state, air can enter the corresponding inflation chamber 110; when the ventilation hole 210 is in the closed state, air fails to enter the corresponding inflation chamber 110; by controlling the number of opened ventilation holes 210, the inflatable volume is adjusted accordingly. The increase in the inflatable volume reduces the stiffness of the air spring; on the contrary, the decrease in the inflatable volume increases the stiffness of the air spring; thus, the stiffness adjustment of the air spring is achieved.

[0038] The sliding seal 300 can be disposed inside the hollow conduit 200. The sliding seal 300 can freely slide along the smooth inner wall of the hollow conduit 200 in the hollow conduit 200, that is, the sliding seal 300 can slide in the inner wall of the hollow conduit 200 to seal or open the vent hole 210. When the sliding seal 300 slides, it can slide to any axial position along the smooth inner wall of the hollow conduit 200. After the sliding seal 300 stops sliding, in the region of the hollow conduit 200 between the current sliding position and the air inlet end 220, the vent hole on the side surface of the hollow conduit 200 is in the open state. In the region of the hollow conduit 200 between the current sliding position and the sealed end of the hollow conduit 200 (i.e., the other end of the hollow conduit 200 that is not the air inlet end 220), the vent hole on the side surface of the hollow conduit 200 is in the sealed state. When the vent hole 210 is in the open state, the corresponding inflatable cavity 110 is in the use state. Correspondingly, when the vent hole 210 is in the sealed state, the corresponding inflatable cavity 110 is in the closed state. The adjusting assembly 400 can also be disposed on the hollow conduit 200. The adjusting assembly 400 can adjust the sliding seal 300 by means of material properties, or air pressure or magnetic force, etc. The adjusting assembly 400 can adjust the sliding position of the sliding seal 300 in the hollow conduit 200, so as to realize the control of the vent hole 210 and the inflatable cavity 110. Further, there can be an interference fit between the sliding seal 300 and the inner wall of the hollow conduit 200, or a sealing ring is provided on the outer side of the sliding seal 300, and the sealing ring is used to seal between the sliding seal 300 and the inner wall of the hollow conduit 200 to prevent high-pressure gas from leaking from the gap between the sliding seal 300 and the inner wall of the hollow conduit 200.

[0039] It should be noted that, in order to reduce the vibration caused by the dynamic change of high-pressure gas and to enhance the durability and sealing performance of the hollow conduit 200, the outer side of the hollow conduit 200 can be corrugated, and the inner wall surface of the hollow conduit 200 is still a smooth inner wall surface.

[0040] In an embodiment of the present invention, there is provided a mounting seat body 100 with a plurality of built-in inflatable chambers 110; a hollow conduit 200, on which ventilation holes 210 corresponding to the inflatable chambers 110 are provided, and the inflatable chambers 110 are communicated through the corresponding ventilation holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 penetrates and is connected to the mounting seat body 100 for introducing external gas into the inflatable chambers 110; a sliding seal 300 disposed in the hollow conduit 200, which slides in the hollow conduit 200 to seal or open the ventilation holes 210; and an adjustment assembly 400 disposed on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200. It is possible to control the sliding seal 300 to slide in the hollow conduit 200 to seal or open the corresponding ventilation holes 210 under the condition of a fixed total volume, and by adjusting the number of opened ventilation holes, the inflatable volume can be adjusted, and then the stiffness can be adjusted based on the change in volume; adjusting the number of opened ventilation holes 210 can adjust the stiffness, so that a single-chamber air spring can also meet more refined vehicle performance requirements. Moreover, the stiffness is adjusted by the positions of the ventilation holes 210, the hollow conduit 200, and the sliding seal 300. Without using an electromagnetic valve, the volume of the mounting seat on the air spring can be effectively reduced, which is convenient for setting the installation position in the vehicle chassis, improving the practicability, reducing the complex control process of the electromagnetic valve, and improving the stiffness adjustment efficiency of the air spring.

[0041] In an alternative embodiment of the present invention, the sliding seal 300 includes an elastic member 310 and a sliding block 320.

[0042] One end of the elastic member 310 is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; the sliding block 320 slides in the hollow conduit 200 under the action of the elastic member 310.

[0043] In an embodiment of the present invention, the sliding seal 300 may include an elastic member 310 and a sliding block 320. The elastic member 310 may refer to Figure 4, one end of the elastic member 310 is fixed to the air inlet end 220, and the other end is connected to the sliding block 320, and the sliding block 320 is pushed or pulled to move by its own elastic force. Further, the elastic member 310 includes: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; when the helical cylindrical spring is in a free state, all the ventilation holes 210 are in an open state. That is, the elastic member 310 is a helical cylindrical spring. One end of the helical cylindrical spring is fixed to the air inlet end 220 of the hollow conduit 200 by means such as welding, and the other end is connected to the sliding block 320. The end of the helical cylindrical spring connected to the air inlet end 220 is fixed differently, and the other end drives the sliding block 320 to move. Among them, the helical cylindrical spring is a helical spring in the shape of a cylinder. The basic structure of the helical cylindrical spring is formed by winding a wire or alloy wire with a circular cross-section in a helical manner. In addition, the sliding seal 300 can also be an electromagnetic structure, including an electromagnet and a permanent magnet. The electromagnet is arranged at the air inlet end 220. The permanent magnet is connected to the sliding seal and slides in the hollow conduit 200. By passing different currents through the electromagnet, corresponding magnetic forces are generated to attract or repel the permanent magnet, thereby driving the permanent magnet and the sliding seal to slide in the hollow conduit 200.

[0044] Refer to Figure 5 , the sliding block 320 is detachably connected to the other end of the spring, and the sliding block 320 slides in the hollow conduit 200 under the action of the elastic member 310 to open or close the ventilation hole 210.

[0045] In an alternative embodiment of the present invention, the adjustment assembly 400 includes a coil 410 and a power-on assembly 420,

[0046] The coil 410 is sleeved on the hollow conduit 200; both ends of the coil 410 are connected to the power-on assembly 420, and the coil 410 is used to adjust the sliding position of the sliding seal 300 in the hollow conduit 200 when the power-on assembly 420 is powered on.

[0047] The adjustment assembly 400 may include a coil 410 and a power-on assembly 420. Both ends of the coil 410 are connected to the power-on assembly 420, and the power-on assembly 420 can pass a current through the coil 410. It can be referred to Figure 6 , the coil 410 can be sleeved on the hollow conduit 200 and fixed to the hollow conduit 200; when the coil 410 is powered on, the coil 410 generates an electromagnetic force to attract the elastic member 310 and the sliding block 320 to move towards the air inlet end 220, and adjusts the sliding position of the sliding seal 300 in the hollow conduit 200 to adjust the number of inflated chambers 110 opened, thereby adjusting the stiffness of the air spring.

[0048] In an alternative embodiment of the present invention, the coil 410 is wound and fixed on the outer side of the hollow conduit 200 or arranged and fixed on the inner side of the hollow conduit 200.

[0049] There are two ways to fix the coil 410 in the hollow conduit 200. The first way is that the coil 410 is formed by winding a wire around the outer side of the hollow conduit 200, so that when the coil 410 is energized, the coil 410 generates an electromagnetic force. The winding methods of the coil 410 include, but are not limited to, single-layer winding, multi-layer winding, and spiral winding. Single-layer winding means that in the coil 410, each turn of the coil 410 is arranged in the same plane, and after each turn of the wire is wound, the next turn directly starts without forming multi-layer overlap. Multi-layer winding is to wind the coil 410 into multiple layers, and an insulating material is used to separate each layer. In spiral winding, the coil 410 is wound along an axis in a spiral shape.

[0050] The second way is that after being pre-wound, the coil 410 is fixed on the inner side of the hollow conduit 200. When the coil 410 is energized, the coil 410 generates an electromagnetic force. And in order to further fix the position of the coil 410 in the hollow conduit 200 and prevent the coil 410 from shifting in the hollow conduit 200, resulting in control failure; the coil 410 and the hollow conduit 200 can be in an interference fit, and the relative positions of the two are fixed by using the elasticity of the coil 410 and the hollow conduit 200. A limiting member can also be provided in the hollow conduit 200 to fix the coil 410 in the hollow conduit 200 by using the limiting member.

[0051] In an alternative embodiment of the present invention, the volumes of the inflation chambers 110 are the same, and the ventilation holes 210 are evenly distributed on the hollow conduit 200.

[0052] In practical applications, the volumes of each inflation chamber 110 can be the same, and the corresponding ventilation holes 210 are evenly distributed on the hollow conduit 200. By controlling the sliding distance of the slider 320, the state of the ventilation holes 210 can be accurately controlled, and then the use of the inflation chambers 110 can be controlled, which simplifies the control process and effectively improves the control efficiency.

[0053] In an alternative embodiment of the present invention, the mounting seat body 100 includes an upper housing 120 and a lower housing 130 that are connected to each other. The upper housing 120 is provided with upper ribs on the side close to the lower housing 130, and the lower housing 130 is provided with lower ribs on the side close to the upper housing 120; when the upper housing 120 and the lower housing 130 are connected, the upper ribs and the lower ribs are abutted against each other, dividing the mounting seat body 100 into multiple inflation chambers 110.

[0054] It can be referred to Figure 7 、 Figure 8 andFigure 9 , the mounting seat body 100 includes an upper shell 120 and a lower shell 130 which are connected to each other. The upper shell 120 and the lower shell 130 have ribs for partitioning the mounting seat body 100. That is, an upper rib is provided on the side of the upper shell 120 close to the lower shell 130, and a lower rib is provided on the side of the lower shell 130 close to the upper shell 120. The positions of the upper rib and the lower rib correspond to each other. When the upper shell 120 and the lower shell 130 are connected, the mounting seat body 100 is divided into multiple inflation chambers 110 by the abutment of the upper rib and the lower rib. The number of divided inflation chambers 110 can be set according to actual needs, and the embodiments of the present invention do not make specific limitations.

[0055] In practical applications, the upper shell 120 and the lower shell 130 are connected by welding or other means, and the connection method depends on the materials of the upper shell 120 and the lower shell 130. If the upper shell 120 and the lower shell 130 are made of plastic materials, hot air welding or other methods can be used for welding. If the upper shell 120 and the lower shell 130 are made of metal materials such as aluminum alloy, argon arc welding or other methods can be used for welding. The specific connection method adopts different assembly processes according to the structures, materials, etc. of the upper shell 120 and the lower shell 130.

[0056] In addition, an installation position for the energizing component 420 can be provided in the lower shell 130 so that the energizing component 420 can be fixed in the lower shell 130.

[0057] In an alternative embodiment of the present invention, an installation groove 140 is provided at the connection of the upper rib and the lower rib, and the hollow conduit 200 is snap-fitted in the installation groove 140.

[0058] An installation groove 140 can be provided at the connection of the upper rib and the lower rib, and the hollow conduit 200 is snap-fitted in the installation groove 140, thereby fixing the hollow conduit 200 in the mounting seat body 100, and using the outer walls of the upper rib, the lower rib and the hollow conduit 200 to seal each inflation chamber 110 and make them independent of each other. Further, the installation groove 140 and the hollow conduit 200 can be in an interference fit, and the elasticity of the installation groove 140 and the hollow conduit 200 is used to effectively seal the connection of the upper rib and the lower rib.

[0059] In an alternative embodiment of the present invention, the upper mounting seat of the air spring further includes: a reinforcing member 500, which is provided on the upper shell 120.

[0060] It can be referred to Figure 10 , the reinforcing member 500 is a triangular hollow circular structure and can be installed on the upper shell 120. The center line of the hollow circle coincides with the installation center line of the upper shell 120, thereby strengthening the overall structural strength of the upper mounting seat of the air spring.

[0061] In order to enable those skilled in the art to clearly understand the operation process of the embodiments of the present invention, the motion control process based on the above structure will be described as follows:

[0062] During normal use, when the energizing component 420 does not energize the coil 410, the elastic member 310 is in a free state. The main air chamber of the air spring is connected to each inflation chamber 110 through the vent hole 210 of the upper mounting seat and the internal vent hole 210 of the hollow conduit 200. When the vehicle needs a greater stiffness requirement, the energizing component 420 passes an electric current through the coil 410. After the coil 410 is energized, a magnetic field is generated in the energized coil 410, causing the slider 320 of the coil 410 to move along the conduit of the coil 410 against the elastic force of the elastic member 310. According to the relative relationships such as the magnetic force, the acting force of the elastic member 310, and the movement friction force of the slider 320 of the coil 410, the input current is increased and the magnetic field strength is changed to achieve the movement of the slider 320 of the coil 410. When the slider 320 of the coil 410 compresses the elastic member 310 and passes through the vent hole 210 on the hollow conduit 200, the air chamber corresponding to this vent hole 210 is disconnected from the inflation chamber 110, thereby separating the air chambers where the main inflation chamber 110 and the auxiliary inflation chamber 110 are blocked, and realizing an increase in the stiffness of the air elastic member 310. When the slider 320 of the coil 410 compresses the elastic member 310 and passes through all the vent holes 210 on the hollow conduit 200, the main inflation chamber 110 is disconnected from the auxiliary inflation chamber 110. At this time, the stiffness of the air elastic member 310 is the largest and the input current of the coil 410 is the largest. Similarly, when the vehicle needs the air elastic member 310 to change from high stiffness to low stiffness, the current input is reduced or power is not supplied to restore the compressed elastic member 310. When the elastic member 310 returns to the free state, all the inflation chambers 110 are connected at this time. The advantage of this control logic is that the coil 410 is not energized during normal use, with little heat generation, improving the durability and reliability of the air spring.

[0063] The embodiments of the present invention also disclose an air spring, including the air spring upper mounting seat as described above.

[0064] In practical applications, it can also be used in cooperation with a flexible sealed container and a lower mounting seat. The air spring is an elastic element with air as the elastic medium. By filling compressed air in the flexible sealed container, the elastic effect is realized by using the compressibility of air. Its working principle is based on Boyle-Mariotte's law, that is, when the temperature of the gas is constant, the pressure is inversely proportional to the volume. When an external force acts on the air spring, the volume change of the gas in the air spring upper mounting seat and the flexible sealed container causes a pressure change, thereby generating an elastic restoring force.

[0065] Air springs can be mainly used in suspension systems to provide a smoother driving experience, reduce vibrations and enhance comfort. They usually replace traditional metal springs (such as steel springs) to more effectively absorb the impacts caused by road unevenness. Air springs generate elastic effects by compressing air within a flexible sealed container. When the vehicle suspension system bears a load, the air spring adjusts its elasticity according to the change in gas pressure to provide appropriate support force.

[0066] The air suspension system composed of air springs has many advantages compared to the traditional steel spring suspension system: Better comfort: Air springs can adjust the stiffness in real time according to road conditions, greatly enhancing the comfort of passengers inside the vehicle when driving on uneven roads. Adjustability: The driver can change the height of the vehicle and the hardness of the suspension by adjusting the air pressure. For example, the vehicle body height can be lowered during high-speed driving to improve stability; the vehicle body height can be increased when passing through rough roads to avoid scraping the chassis. Shock absorption performance: Air springs have very good shock absorption performance, can effectively absorb the impacts and vibrations from the road surface, reduce vehicle body vibrations, and improve riding comfort. Strong load-bearing capacity: Air springs can adjust the air pressure according to different loads to ensure the balance of the vehicle body. Especially in heavy-duty vehicles and commercial vehicles, they can effectively maintain the stability and comfort of the vehicle. Lower vehicle body height: By using the air spring suspension system, the vehicle body height can be adjusted according to vehicle speed and road conditions, improving aerodynamic performance and reducing fuel consumption.

[0067] Specifically, the mounting seat on the air spring includes:

[0068] A mounting seat body 100 with multiple built-in inflation chambers 110; a hollow conduit 200, on which there are ventilation holes 210 corresponding to the inflation chambers 110, and the inflation chambers 110 are connected through the corresponding ventilation holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 is connected to the mounting seat body 100 for introducing external gas into the inflation chambers 110; a sliding seal 300 arranged in the hollow conduit 200, which is used to slide in the hollow conduit 200 to seal or open the ventilation holes 210; an adjustment assembly 400 arranged on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200.

[0069] Furthermore, the sliding seal 300 includes an elastic member 310 and a sliding block 320,

[0070] One end of the elastic member 310 is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; the sliding block 320 slides in the hollow conduit 200 under the action of the elastic member 310.

[0071] Further, the elastic member 310 includes: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; when the helical cylindrical spring is in a free state, all the ventilation holes 210 are in an open state.

[0072] Further, the adjusting assembly 400 includes a coil 410 and an energizing assembly 420.

[0073] The coil 410 is sleeved on the hollow conduit 200; both ends of the coil 410 are connected to the energizing assembly 420, and the coil 410 is used to adjust the sliding position of the sliding seal 300 in the hollow conduit 200 when the energizing assembly 420 is energized.

[0074] Further, the coil 410 is wound and fixed on the outer side of the hollow conduit 200 or arranged and fixed on the inner side of the hollow conduit 200.

[0075] Further, the volumes of the inflation chambers 110 are the same, and the ventilation holes 210 are equally spaced on the hollow conduit 200.

[0076] Further, the mounting base body 100 includes an upper housing 120 and a lower housing 130 that are connected to each other. An upper rib is provided on one side of the upper housing 120 close to the lower housing 130, and a lower rib is provided on one side of the lower housing 130 close to the upper housing 120; when the upper housing 120 and the lower housing 130 are connected, the upper rib and the lower rib are abutted against each other to divide the mounting base body 100 into a plurality of inflation chambers 110.

[0077] Further, a mounting groove 140 is provided at the connection of the upper rib and the lower rib, and the hollow conduit 200 is snap-fitted into the mounting groove 140.

[0078] Further, it further includes: a reinforcing member 500, which is provided on the upper housing 120.

[0079] In an embodiment of the present invention, there is provided a mounting seat body 100 with multiple built-in inflatable chambers 110; a hollow conduit 200, on which there are ventilation holes 210 corresponding to the inflatable chambers 110, and the inflatable chambers 110 are communicated through the corresponding ventilation holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 penetrates and is connected to the mounting seat body 100 for introducing external gas into the inflatable chambers 110; a sliding seal 300 disposed in the hollow conduit 200, the sliding seal 300 slides in the hollow conduit 200 to seal or open the ventilation holes 210; an adjustment assembly 400 disposed on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200. It is possible to, under the condition of a fixed total volume, control the sliding seal 300 to slide in the hollow conduit 200 to seal or open the corresponding ventilation holes 210, and by adjusting the number of opened ventilation holes, adjust the inflatable volume, and then adjust the stiffness based on the change in volume; adjusting the number of opened ventilation holes 210 can adjust the stiffness, enabling a single-chamber air spring to also meet more refined vehicle performance requirements. Moreover, by adjusting the stiffness through the positions of the ventilation holes 210, the hollow conduit 200, and the sliding seal 300, without using an electromagnetic valve, the volume of the mounting seat on the air spring can be effectively reduced, facilitating the setting of the installation position in the vehicle chassis, improving practicability, reducing the complex control process of the electromagnetic valve, and improving the stiffness adjustment efficiency of the air spring.

[0080] An embodiment of the present invention also discloses a shock absorber including the air spring as described above.

[0081] The rigidity of the air spring can be adjusted according to requirements by adjusting the inflatable volume in the mounting seat of the air spring. When the vehicle is running, the air pressure of the air spring will be automatically adjusted according to road conditions, load, and vehicle speed. For example, when driving at high speed, the vehicle will lower the body height to reduce air resistance; while when passing through rough roads, the system will increase the body height to avoid scraping the chassis.

[0082] Specifically, the mounting seat of the air spring includes:

[0083] A mounting base body 100 with multiple built-in inflatable cavities 110; a hollow conduit 200, on which vent holes 210 corresponding to the inflatable cavities 110 are provided, and the inflatable cavities 110 communicate with each other through the corresponding vent holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 is connected to the mounting base body 100 for introducing external gas into the inflatable cavities 110; a sliding seal 300 arranged in the hollow conduit 200, and the sliding seal 300 is used to slide in the hollow conduit 200 to seal or open the vent holes 210; an adjusting assembly 400 arranged on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200.

[0084] Further, the sliding seal 300 includes an elastic member 310 and a sliding block 320.

[0085] One end of the elastic member 310 is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; the sliding block 320 slides in the hollow conduit 200 under the action of the elastic member 310.

[0086] Further, the elastic member 310 includes: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; when the helical cylindrical spring is in a free state, all the vent holes 210 are in an open state.

[0087] Further, the adjusting assembly 400 includes a coil 410 and an energizing assembly 420.

[0088] The coil 410 is sleeved on the hollow conduit 200; both ends of the coil 410 are connected to the energizing assembly 420, and the coil 410 is used to adjust the sliding position of the sliding seal 300 in the hollow conduit 200 when the energizing assembly 420 is energized.

[0089] Further, the coil 410 is wound and fixed on the outer side of the hollow conduit 200 or arranged and fixed on the inner side of the hollow conduit 200.

[0090] Further, the volumes of the inflatable cavities 110 are the same, and the vent holes 210 are evenly distributed on the hollow conduit 200.

[0091] Further, the mounting seat body 100 includes an upper housing 120 and a lower housing 130 which are connected to each other. An upper rib is provided on one side of the upper housing 120 close to the lower housing 130, and a lower rib is provided on one side of the lower housing 130 close to the upper housing 120. When the upper housing 120 and the lower housing 130 are connected, the upper rib and the lower rib are abutted against each other, dividing the mounting seat body 100 into a plurality of inflation chambers 110.

[0092] Further, a mounting groove 140 is provided at the connection of the upper rib and the lower rib, and the hollow conduit 200 is snap-fitted in the mounting groove 140.

[0093] Further, it further includes: a reinforcing member 500, which is provided on the upper housing 120.

[0094] In the embodiment of the present invention, a mounting seat body 100 with a plurality of inflation chambers 110 is provided; a hollow conduit 200, and ventilation holes 210 corresponding to the inflation chambers 110 are provided on the hollow conduit 200. The inflation chambers 110 are communicated with each other through the corresponding ventilation holes 210 and the hollow conduit 200. One end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 penetrates and is connected to the mounting seat body 100 for introducing external gas into the inflation chambers 110. A sliding seal 300 is provided in the hollow conduit 200, and the sliding seal 300 slides in the hollow conduit 200 to seal or open the ventilation holes 210. An adjusting assembly 400 is provided on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200. It is possible to adjust the inflatable volume by controlling the sliding seal 300 to slide in the hollow conduit 200 to seal or open the corresponding ventilation holes 210 under the condition of a fixed total volume, and adjust the stiffness by adjusting the number of opened ventilation holes. Furthermore, the stiffness can be adjusted by changing the volume, so that a single-chamber air spring can also meet the more refined vehicle performance requirements. And the stiffness is adjusted by the positions of the ventilation holes 210, the hollow conduit 200 and the sliding seal 300. Without using a solenoid valve, the volume of the upper mounting seat of the air spring can be effectively reduced, which is convenient for setting the mounting position in the vehicle chassis, improving the practicability, reducing the complex control process of the solenoid valve, and improving the stiffness adjustment efficiency of the air spring.

[0095] The embodiment of the present invention also discloses a vehicle, including the shock absorber as described above. The shock absorber includes an air spring, and the air spring has an upper mounting seat for the air spring.

[0096] The shock absorbers on a vehicle can be dynamically adjusted according to different requirements. For example: Height adjustment function: The height of the vehicle body can be adjusted through an electronic control unit (ECU). For driving on rough roads, the air suspension can increase the height of the vehicle body to avoid contact between the chassis and the ground. When driving at high speeds, the system may lower the vehicle body to reduce air resistance and improve stability. Stiffness adjustment function: The air suspension system can also adjust the stiffness of the springs so that the vehicle can better adapt to different road conditions. For example, on a flat highway, the suspension can be set to a stiffer state to improve handling; while on rough rural roads, the suspension can be set to a softer state to improve comfort.

[0097] Specifically, the mounting seat on the air spring may include:

[0098] A mounting seat body 100 with multiple built-in inflation chambers 110; a hollow conduit 200, on which ventilation holes 210 corresponding to the inflation chambers 110 are provided, and the inflation chambers 110 are connected through the corresponding ventilation holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 is connected to the mounting seat body 100 for introducing external gas into the inflation chambers 110; a sliding seal 300 arranged in the hollow conduit 200, and the sliding seal 300 is used to slide in the hollow conduit 200 to seal or open the ventilation holes 210; an adjustment assembly 400 arranged on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200.

[0099] Further, the sliding seal 300 includes an elastic member 310 and a sliding block 320.

[0100] One end of the elastic member 310 is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; the sliding block 320 slides in the hollow conduit 200 under the action of the elastic member 310.

[0101] Further, the elastic member 310 includes: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end 220, and the other end is connected to the sliding block 320; when the helical cylindrical spring is in a free state, all the ventilation holes 210 are in an open state.

[0102] Further, the adjustment assembly 400 includes a coil 410 and an energizing assembly 420.

[0103] The coil 410 is sleeved on the hollow conduit 200; both ends of the coil 410 are connected to the energizing component 420, and the coil 410 is configured to adjust the sliding position of the sliding seal 300 in the hollow conduit 200 when the energizing component 420 is energized.

[0104] Further, the coil 410 is wound and fixed on the outer side of the hollow conduit 200 or arranged and fixed on the inner side of the hollow conduit 200.

[0105] Further, the volumes of the inflation chambers 110 are the same, and the ventilation holes 210 are evenly distributed on the hollow conduit 200.

[0106] Further, the mounting base body 100 includes an upper housing 120 and a lower housing 130 that are connected to each other. An upper rib is provided on a side of the upper housing 120 close to the lower housing 130, and a lower rib is provided on a side of the lower housing 130 close to the upper housing 120; when the upper housing 120 and the lower housing 130 are connected, the upper rib and the lower rib are abutted against each other to divide the mounting base body 100 into a plurality of inflation chambers 110.

[0107] Further, a mounting groove 140 is provided at a connection position of the upper rib and the lower rib, and the hollow conduit 200 is snap-fitted in the mounting groove 140.

[0108] Further, it further includes: a reinforcing member 500, which is provided on the upper housing 120.

[0109] In an embodiment of the present invention, there is a mounting seat body 100 with multiple built-in inflatable chambers 110; a hollow conduit 200, on which there are vent holes 210 corresponding to the inflatable chambers 110, and the inflatable chambers 110 are connected through the corresponding vent holes 210 and the hollow conduit 200; one end of the hollow conduit 200 is an air inlet end 220, and the air inlet end 220 penetrates and is connected to the mounting seat body 100 for introducing external gas into the inflatable chambers 110; a sliding seal 300 disposed in the hollow conduit 200, the sliding seal 300 slides in the hollow conduit 200 to seal or open the vent holes 210; an adjusting assembly 400 disposed on the hollow conduit 200 for adjusting the sliding position of the sliding seal 300 in the hollow conduit 200. It is possible to, under the condition of a fixed total volume, control the sliding seal 300 to slide in the hollow conduit 200 to seal or open the corresponding vent holes 210, adjust the inflatable volume by adjusting the number of opened vent holes, and then adjust the stiffness based on the change in volume; adjusting the number of opened vent holes 210 can adjust the stiffness, so that a single-chamber air spring can also meet more refined vehicle performance requirements. And by adjusting the stiffness through the positions of the vent holes 210, the hollow conduit 200, and the sliding seal 300, without using an electromagnetic valve, the volume of the mounting seat on the air spring can be effectively reduced, facilitating the setting of the mounting position in the vehicle chassis, improving the practicability, reducing the complex control process of the electromagnetic valve, and improving the stiffness adjustment efficiency of the air spring.

[0110] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are within the protection scope of the present invention.

[0111] Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the embodiments can be referred to each other.

[0112] The terms "first", "second", etc. are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the quantity or order of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined. In addition, the terms "comprise", "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. As used in this application, the term "and / or" includes any and all combinations of one or more of the associated listed items, and the phrase "at least one of A and B" means only A, only B, or both A and B. It should be understood that in this specification, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "height", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship or dimensions based on the orientation or positional relationship or dimensions shown in the drawings. The use of these terms is only for convenience of description and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of this disclosure.

[0113] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0114] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprise", "include" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or terminal device including the said element.

[0115] The above has introduced in detail a mounting seat for an air spring, an air spring, a shock absorber and a vehicle provided by the present invention. Specific examples are used in this article to expound the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An air spring upper mounting seat, characterized in that, Comprising: A mounting seat body with multiple built-in inflatable cavities; A hollow conduit, on which ventilation holes corresponding to the inflatable cavities are provided, and the inflatable cavities are communicated through the corresponding ventilation holes and the hollow conduit; one end of the hollow conduit is an air inlet end, and the air inlet end is connected to the mounting seat body for introducing external gas into the inflatable cavities; A sliding seal arranged in the hollow conduit, which is used to slide in the hollow conduit to seal or open the ventilation holes; An adjusting assembly arranged on the hollow conduit for adjusting the sliding position of the sliding seal in the hollow conduit.

2. The air spring mounting seat according to claim 1, characterized in that, The sliding seal comprises an elastic member and a sliding block, One end of the elastic member is fixed to the air inlet end, and the other end is connected to the sliding block; the sliding block slides in the hollow conduit under the action of the elastic member.

3. The mounting seat for an air spring according to claim 2, characterized in that, The elastic member comprises: a helical cylindrical spring, one end of the helical cylindrical spring is fixed to the air inlet end, and the other end is connected to the sliding block; when the helical cylindrical spring is in a free state, all the ventilation holes are in an open state.

4. The air spring upper mounting seat according to any one of claims 1-3, characterized in that, The adjusting assembly comprises a coil and an energizing assembly, The coil is sleeved on the hollow conduit; both ends of the coil are connected to the energizing assembly, and the coil is used to adjust the sliding position of the sliding seal in the hollow conduit when the energizing assembly is energized.

5. The mounting seat for an air spring according to claim 4, characterized in that, The coil is wound and fixed on the outer side of the hollow conduit or arranged and fixed on the inner side of the hollow conduit.

6. The mounting seat for an air spring according to claim 1, characterized in that, The volumes of the inflatable cavities are the same, and the ventilation holes are equally spaced on the hollow conduit.

7. The mounting seat for an air spring according to claim 1, characterized in that, The mounting seat body comprises an upper shell and a lower shell connected to each other. Upper ribs are provided on one side of the upper shell close to the lower shell, and lower ribs are provided on one side of the lower shell close to the upper shell; when the upper shell and the lower shell are connected, the upper ribs and the lower ribs are abutted against each other to divide the mounting seat body into multiple inflatable cavities.

8. The mounting seat for an air spring according to claim 7, characterized in that, Mounting grooves are provided at the joints of the upper ribs and the lower ribs, and the hollow conduit is clamped in the mounting grooves.

9. The mounting seat for an air spring according to claim 7, characterized in that, Further comprising: A reinforcing member provided on the upper shell.

10. An air spring, characterized in that, Comprising the upper mounting seat of the air spring according to any one of claims 1-9.

11. A shock absorber, characterized in that, Comprising the air spring according to claim 10.

12. A vehicle, characterized in that, Comprising the shock absorber according to claim 11.

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