Air spring and vehicle

Abstract

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

Description

Technical Field

[0001] This invention relates to the field of automotive chassis technology, specifically to an air spring and a vehicle. Background Technology

[0002] In related technologies, air springs can achieve a wider range of stiffness and load curve characteristics adjustment through volume adjustment. However, there are usually two methods for adjusting the volume of air springs. One method has the problem that it is not easy to completely remove water after it is injected, which will cause volume error. The other method has the problem that the volume cannot be continuously adjusted. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an air spring whose volume adjustment during stiffness adjustment is continuous and less prone to error.

[0004] An air spring according to an embodiment of the present invention includes: a top seat having a mounting cavity formed therein; an adjustment assembly including a movable member movably mounted in the mounting cavity, the movable member being spaced apart from the bottom wall of the mounting cavity to define an adjustment air chamber; wherein at least a portion of the outer peripheral wall of the movable member is connected to the inner wall of the mounting cavity by a first threaded pair, and the movable member is adapted to move axially along the first threaded pair to adjust the volume of the adjustment air chamber.

[0005] According to an embodiment of the present invention, the air spring can adjust the volume of the regulating air chamber and thus adjust the stiffness of the air spring by adjusting the position of the movable member. When adjusting the volume of the regulating air chamber, the adjustment can be made by moving the movable member along the axial direction of the first threaded pair. This makes the stiffness of the air spring continuously adjustable and without volume error.

[0006] According to some embodiments of the air spring of the present invention, the movable member is constructed as a solid structure, and the side of the solid structure facing the bottom wall of the mounting cavity forms the top wall of the regulating air cavity.

[0007] According to some embodiments of the air spring of the present invention, the movable member is constructed as a hollow structure, the hollow structure having a sub-adjustment air chamber that is open toward the bottom wall of the mounting cavity.

[0008] According to some embodiments of the air spring of the present invention, the end of the movable member away from the bottom wall of the mounting cavity is provided with a mating part, and the mating member is adapted to connect with the mating part to drive the movable member to move axially along the first threaded pair.

[0009] According to some embodiments of the air spring of the present invention, the adjusting assembly further includes a fixing member, the lower end of the fixing member abutting against the bottom wall of the mounting cavity, and a movable space open toward the mounting cavity is formed in the fixing member, at least a portion of the movable member slidingly engaging with the inner wall of the movable space, and at least a portion of the inner wall of the movable space forming the inner wall of the adjusting air chamber.

[0010] According to some embodiments of the air spring of the present invention, the movable part includes a body portion and a connecting portion, the connecting portion having a first external thread for threaded engagement with the inner wall of the mounting cavity, the body portion being connected to the connecting portion and slidingly engaging with the inner wall of the movable space.

[0011] According to some embodiments of the air spring of the present invention, the main body is fitted with a first sealing ring, the first sealing ring abutting against the inner wall of the active space.

[0012] According to some embodiments of the air spring, the radial dimension of the body portion is smaller than the radial dimension of the connecting portion.

[0013] According to some embodiments of the air spring of the present invention, the fixing member is connected to the inner wall of the mounting cavity by a second threaded pair, and / or the fixing member is fitted with a second sealing ring, the second sealing ring being in a sealing fit with the inner wall of the mounting cavity.

[0014] The present invention also proposes a vehicle.

[0015] A vehicle according to an embodiment of the present invention includes: an air spring as described in any of the above embodiments.

[0016] The vehicle described above has the same advantages over the prior art as the air springs mentioned above, which will not be repeated here.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a cross-sectional view of an air spring according to some embodiments of the present invention (the moving parts are solid structures);

[0020] Figure 2 This is a cross-sectional view of an air spring according to some embodiments of the present invention (the moving part is a hollow structure);

[0021] Figure 3 for Figure 1A schematic diagram of the moving parts;

[0022] Figure 4 for Figure 1 A schematic diagram of the fasteners in the diagram;

[0023] Figure 5 This is a schematic diagram of a vehicle according to some embodiments of the present invention.

[0024] Figure label:

[0025] 1000 vehicles;

[0026] Air spring 100;

[0027] Top seat 10, mounting cavity 11, top seat retaining ring 12, bladder skin 13;

[0028] Base 20, push ring 21, base locking ring 22;

[0029] Adjustment component 30, movable part 31, first threaded pair 311;

[0030] Body part 312, first sealing ring 3121, connecting part 313, first external thread 3131;

[0031] Fitting part 314, sub-adjusting air chamber 315, first groove 316;

[0032] Fixing component 32, second threaded pair 321, second sealing ring 322, movable space 323;

[0033] Second groove 324, second external thread 325;

[0034] Adjustable air chamber 34, protective sleeve 35, dust cover 36. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0037] The following is for reference. Figures 1-5 An air spring 100 according to an embodiment of the present invention is described.

[0038] like Figures 1-4 As shown, the air spring 100 according to an embodiment of the present invention includes: a top seat 10 and an adjustment assembly 30.

[0039] The top seat 10 has a mounting cavity 11. The adjustment assembly 30 includes a movable member 31, which is movably mounted in the mounting cavity 11. The movable member 31 is spaced apart from the bottom wall of the mounting cavity 11 to define an adjustment air chamber 34. At least a portion of the outer peripheral wall of the movable member 31 is connected to the inner wall of the mounting cavity 11 by a first threaded pair 311. The movable member 31 is adapted to move axially along the first threaded pair 311 to adjust the volume of the adjustment air chamber 34.

[0040] Thus, at least a portion of the outer peripheral wall of the movable member 31 is connected to the inner wall of the mounting cavity 11 via the first threaded pair 311, so that the movable member 31 can seal the mounting cavity 11, and at the same time, the movable member 31 can move axially along the first threaded pair 311, so that the volume of the air chamber 34 can be adjusted, thereby adjusting the stiffness of the air spring 100.

[0041] For example, when the adjusting component 30 is disposed within the mounting cavity 11 and the movable component 31 is disposed within the mounting cavity 11, the movable component 31 has two connection forms. One form is that the entire outer peripheral wall of the movable component 31 is connected to the inner wall of the mounting cavity 11 via a first threaded pair 311. This provides better stability for the movable component 31 after connection with the mounting cavity 11. The other form is that a portion of the outer peripheral wall of the movable component 31 is connected to the inner wall of the mounting cavity 11 via the first threaded pair 311. A first external thread 3131 is provided on the outer peripheral wall of the movable component 31, and a first internal thread is provided on the inner wall of the mounting cavity 11. The first internal thread engages with the first internal thread to form a first threaded pair 311. Thus, the movable part 31 and the bottom wall of the mounting cavity 11 define the adjusting air chamber 34. An internal hexagonal hole is provided on the side of the movable part 31 away from the bottom wall of the mounting cavity 11. When an external hexagonal wrench is inserted into the internal hexagonal hole, the movable part 31 can be spirally raised or lowered in the mounting cavity 11 by rotating the wrench. Thus, the volume of the adjusting air chamber 34 changes when the movable part 31 rises or falls, thereby adjusting the stiffness of the air spring 100. Of course, the internal hexagonal hole on the movable part 31 can also be constructed as an internal octagonal hole, etc., which is not limited here.

[0042] Furthermore, an air guide hole is provided in the inner wall of the mounting cavity 11 of the top seat 10. The lower end of the air guide hole is located at the lower end of the mounting cavity 11, thereby connecting to the adjusting air cavity 34. In this way, the stiffness of the air spring 100 can be adjusted when the volume of the adjusting air cavity 34 is adjusted.

[0043] According to an embodiment of the present invention, the air spring 100 can adjust the volume of the regulating air chamber 34 by adjusting the position of the movable member 31, thereby adjusting the stiffness of the air spring 100. When adjusting the volume of the regulating air chamber 34, the adjustment can be made by moving the movable member 31 along the axial direction of the first threaded pair 311. This makes the stiffness of the air spring 100 continuously adjustable and without volume error.

[0044] In some embodiments, such as Figure 1 As shown, the movable part 31 is constructed as a solid structure, and the side of the solid structure facing the bottom wall of the mounting cavity 11 forms the top wall of the regulating air cavity 34.

[0045] It should be noted that the movable part 31 is constructed as a solid structure, which makes it more stable when adjusting the regulating air chamber 34, and allows for more precise adjustment of the stiffness of the air spring 100.

[0046] Therefore, the movable part 31 of the solid structure can be adjusted more precisely when adjusting the regulating air chamber 34, thereby making the stiffness adjustment of the air spring 100 more accurate.

[0047] In some embodiments, such as Figure 2As shown, the movable part 31 is constructed as a hollow structure, and the hollow structure is provided with a sub-adjustment air cavity 315, which is open to the bottom wall of the mounting cavity 11.

[0048] It should be noted that the hollow structure of the movable part 31 allows for a larger adjustable range of the regulating air chamber 34. Specifically, the hollow structure contains a sub-regulating air chamber 315 with its opening facing the bottom wall of the mounting cavity 11. This allows the sub-regulating air chamber 315 to cooperate with the regulating air chamber 34 to form more accommodating space, thus enabling a larger adjustment range when the movable part 31 moves along the axial direction of the first threaded pair 311 to adjust the stiffness of the air spring 100.

[0049] Therefore, the movable part 31, which is constructed as a hollow structure, is also provided with a sub-adjustment air chamber 315. The sub-adjustment air chamber 315 and the adjustment air chamber 34 can work together to adjust the stiffness of the air spring 100, thus enabling the air spring 100 to have a larger adjustment range.

[0050] In some embodiments, such as Figures 1-3 As shown, the movable part 31 has a mating part 314 at one end away from the bottom wall of the mounting cavity 11. The mating part is adapted to connect with the mating part 314 to drive the movable part 31 to move axially along the first threaded pair 311.

[0051] It should be noted that the mating part 314 can be constructed as an internal hexagonal hole, and the mating component can be constructed as an external hexagonal wrench. In this way, the external hexagonal wrench can be inserted into the internal hexagonal hole, and when the external hexagonal wrench is rotated, it can drive the movable component 31 to move along the axial direction of the first threaded pair 311, thereby changing the volume of the adjusting air chamber 34 and adjusting the stiffness of the air spring 100.

[0052] Therefore, a mating part 314 is provided on the movable part 31, so that the movable part 31 can be driven to move after the mating part is connected to the mating part 314. The direction of movement of the movable part 31 is along the axial direction of the first threaded pair 311. In this way, the volume of the air chamber 34 can be adjusted when the movable part 31 moves, thereby adjusting the stiffness of the air spring 100.

[0053] In some embodiments, such as Figures 1-2 As shown, the adjustment assembly 30 also includes a fixing member 32. The lower end of the fixing member 32 abuts against the bottom wall of the mounting cavity 11, and an active space 323 open toward the mounting cavity 11 is formed inside the fixing member 32. At least a portion of the movable member 31 slides in cooperation with the inner wall of the active space 323, and at least a portion of the inner wall of the active space 323 is formed as the inner wall of the adjustment air cavity 34.

[0054] It should be noted that the outer peripheral wall of the fixing member 32 is also provided with threads, that is, the fixing member 32 is threadedly connected to the mounting cavity 11. This ensures the installation stability of the fixing member 32, so that the fixing member 32 can be firmly installed in the mounting cavity 11 when the movable member 31 adjusts the regulating air cavity 34. The fixing member 32 also forms a movable space 323. While the movable member 31 is threadedly connected to the mounting cavity 11, part of the movable member 31 will also slide and cooperate with the inner wall of the movable space 323. That is, the part of the movable member 31 that is not threadedly connected to the mounting cavity 11 can be fully accommodated in the movable space 323, or it can be partially accommodated in the movable space 323. At this time, at least part of the movable space 323 will become the regulating air cavity 34. Thus, when the movable member 31 moves axially along the first threaded pair 311, it can adjust the volume of the regulating air cavity 34 and thereby adjust the stiffness of the air spring 100.

[0055] Therefore, the fixing member 32 is also part of the adjustment assembly 30. The lower end of the fixing member 32 abuts against the bottom wall of the mounting cavity 11, and a movable space 323 is formed inside the fixing member 32. In this way, the fixing member 32 will not occupy too much space in the adjustment air cavity 34. The movable member 31 slides with the inner wall of the movable space 323 at least partially. When the movable member 31 is engaged, there are multiple possibilities, such as the part of the movable member 31 that is not threaded to the mounting cavity 11 being entirely located in the movable space 323, or part of the movable member 31 being located in the movable space 323, or the part of the movable member 31 that is not threaded to the mounting cavity 11 being completely separated from the movable space 323. In this way, the movable member 31 can have multiple ranges of selection when adjusting the adjustment air cavity 34, and at the same time, it is more stable and more accurate during the adjustment process.

[0056] Optionally, the axial dimension of the fastener 32 is D, and D satisfies (L / 2-10)mm < D < (L / 2+5)mm, where L is the axial length of the mounting cavity 11.

[0057] In some embodiments, such as Figures 1-3 As shown, the movable part 31 includes a body part 312 and a connecting part 313. The connecting part 313 is provided with a first external thread 3131 for threaded engagement with the inner wall of the mounting cavity 11. The body part 312 is connected to the connecting part 313 and slides in engagement with the inner wall of the movable space 323.

[0058] Therefore, the connecting part 313 will be threadedly engaged with the inner wall of the mounting cavity 11, and the moving part 31 will move along the axial direction of the first threaded pair 311. This means that the connecting part 313 rotates relative to the inner wall of the mounting cavity 11, thereby driving the moving part 31 to move. The sliding engagement between the main body 312 and the inner wall of the movable space 323 allows the moving part 31 to adjust the volume of the regulating air chamber 34 during movement, thereby adjusting the stiffness of the air spring 100.

[0059] In some embodiments, such as Figures 1-3 As shown, the main body 312 is fitted with a first sealing ring 3121, which abuts against the inner wall of the movable space 323.

[0060] Therefore, the first sealing ring 3121 fitted on the main body 312 will abut against the inner wall of the active space 323, which enables the regulating air chamber 34 to have good sealing performance, making the volume adjustment of the regulating air chamber 34 more precise, thereby better controlling the stiffness of the air spring 100.

[0061] Furthermore, the main body 312 has a first groove 316 at the end away from the connecting part 313. The first groove 316 is used to install the first sealing ring 3121, so that the first sealing ring 3121 will not slide on the main body 312 when the main body 312 slides in the movable space 323.

[0062] In some embodiments, the radial dimension of the body portion 312 is smaller than the radial dimension of the connecting portion 313.

[0063] Therefore, the radial dimension of the main body 312 is smaller than that of the connecting part 313. This allows the main body 312 to be movably connected within the movable space 323 of the fixing member 32 after the connecting part 313 is threadedly connected to the inside of the mounting cavity 11. This allows the main body 312 to adjust the volume of the air chamber 34 when it slides within the movable space 323 driven by the connecting part 313, thereby controlling the stiffness of the air spring 100.

[0064] In some embodiments, such as Figures 1-4 As shown, the fastener 32 is connected to the inner wall of the mounting cavity 11 by a second threaded pair 321, and / or the fastener 32 is fitted with a second sealing ring 322, which is in a sealing fit with the inner wall of the mounting cavity 11.

[0065] It should be noted that the outer peripheral wall of the fixing member 32 is provided with a second external thread 325 that is threaded to the inner wall of the mounting cavity 11, and the diameter of the second external thread 325 is the same as the diameter of the first external thread 3131 of the movable member 31. This makes it easier to install the adjustment component 30 in the mounting cavity 11. At the same time, a second sealing ring 322 can be fitted on the fixing member 32, which can improve the sealing effect of the adjusting air cavity 34, thereby making the air spring 100 leak less during use. Alternatively, the fixing member 32 can be fitted with the second sealing ring 322 to seal with the inner wall of the mounting cavity 11. Preferably, in this embodiment, the fixing member 32 is connected by the second thread pair 321 and is also provided with a second sealing ring 322 to seal with the inner wall of the mounting cavity 11.

[0066] Thus, the fastener 32 is connected to the inner wall of the mounting cavity 11 through the second threaded pair 321, ensuring the installation stability of the fastener 32, while the second sealing ring 322 fitted on the fastener 32 can further improve the sealing effect of the regulating air cavity 34.

[0067] Furthermore, a second groove 324 is also provided on the outer peripheral wall of the fastener 32 near the bottom wall of the mounting cavity 11, and the second sealing ring 322 is disposed in the second groove 324. This makes it difficult for the second sealing ring 322 to slip out of the second groove 324 when the fastener 32 is threadedly connected to the mounting cavity 11.

[0068] Optionally, both the first sealing ring 3121 and the second sealing ring 322 are annular sealing rings, and both are made of NBR (nitrile butadiene rubber) material.

[0069] According to an embodiment of the present invention, an air spring 100 includes a top seat 10, a base 20, and an adjustment assembly 30. The adjustment assembly 30 is disposed in a mounting cavity 11 in the top seat 10. A bladder 13 is also provided between the top seat 10 and the base 20. The bladder 13 is attached to the top seat 10 by a top seat retaining ring 12, and the bladder 13 is connected to the base 20 by a push ring 21 and a base retaining ring 22. A protective sleeve 35 is also provided on the outside of the bladder 13, and a dust cover 36 is also provided on the outside of the protective sleeve 35.

[0070] Furthermore, an air guide hole is provided in the inner wall of the mounting cavity 11 of the top seat 10. The lower end of the air guide hole is located on the lower side of the inner wall of the mounting cavity 11 and is connected to the adjusting air chamber 34 of the air spring 100. The adjusting assembly 30 includes a fixing member 32 and a movable member 31. The fixing member 32 is cylindrical and has threads on its outer ring. The fixing member 32 is threaded to the mounting cavity 11, and the lower end of the fixing member 32 is provided with a second groove 324 for accommodating the second sealing ring 322. After the fixing member 32 is connected to the mounting cavity 11, the second sealing ring 322 will form a seal with the inner wall of the mounting cavity 11. The movable member 31 is cylindrical with a T-shaped cross-section. At the same time, the connecting part 313 is provided with a first external thread 3131 and is threaded to the mounting cavity 11. The movable part 312 will slide in conjunction with the movable space 323 of the fixed part 32. The side of the main body part 312 away from the connecting part 313 is provided with a first groove 316 for accommodating the first sealing ring 3121. In this way, the movable part 31 and the fixed part 32 define the regulating air chamber 34. The mating part 314 of the movable part 31 is constructed as an internal hexagonal hole. By using an external hexagonal wrench, the movable part 31 can be moved axially in the mounting cavity 11 to adjust the volume of the regulating air chamber 34. In this way, when the volume needs to be increased, the movable part 31 is moved away from the fixed part 32, and when the volume needs to be decreased, the movable part 31 is moved closer to the fixed part 32. The use of thread drive can achieve accurate and continuous stroke change, that is, the volume is continuously adjustable and more precise.

[0071] The present invention also proposes a vehicle 1000.

[0072] like Figure 5 As shown, the vehicle 1000 according to an embodiment of the present invention includes: an air spring 100 of any of the above embodiments.

[0073] According to an embodiment of the present invention, in the air spring 100 installed on the vehicle 1000, the volume of the regulating air chamber 34 can be adjusted by adjusting the position of the movable member 31, thereby adjusting the stiffness of the air spring 100. When adjusting the volume of the regulating air chamber 34, the adjustment can be made by moving the movable member 31 along the axial direction of the first threaded pair 311. This makes the stiffness of the air spring 100 continuously adjustable and without volume error.

[0074] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0077] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air spring (100), characterized in that, include: Top seat (10), wherein an mounting cavity (11) is formed therein; Adjustment assembly (30) includes a movable member (31) which is movably mounted in the mounting cavity (11) and is spaced apart from the bottom wall of the mounting cavity (11) to define an adjustment air cavity (34). Wherein, at least a portion of the outer peripheral wall of the movable member (31) and the inner wall of the mounting cavity (11) are connected by a first threaded pair (311), and the movable member (31) is adapted to move along the axial direction of the first threaded pair (311) to adjust the volume of the regulating air cavity (34); The adjustment assembly (30) further includes a fixing member (32), the lower end of which abuts against the bottom wall of the mounting cavity (11), and an active space (323) is formed inside the fixing member (32) that opens toward the mounting cavity (11). At least a portion of the movable member (31) slides in cooperation with the inner wall of the active space (323), and at least a portion of the inner wall of the active space (323) forms the inner wall of the adjustment air chamber (34). The movable part (31) includes a body part (312) and a connecting part (313). The connecting part (313) is provided with a first external thread (3131) for threading with the inner wall of the mounting cavity (11). The body part (312) is connected to the connecting part (313) and slides with the inner wall of the movable space (323).

2. The air spring (100) according to claim 1, characterized in that, The movable part (31) is constructed as a solid structure, and the side of the solid structure facing the bottom wall of the mounting cavity (11) forms the top wall of the regulating air cavity (34).

3. The air spring (100) according to claim 1, characterized in that, The movable part (31) is constructed as a hollow structure, and the hollow structure is provided with a sub-adjustment air chamber (315), which is open to the bottom wall of the mounting cavity (11).

4. The air spring (100) according to claim 1, characterized in that, The movable part (31) is provided with a mating part (314) at one end away from the bottom wall of the mounting cavity (11). The mating part is adapted to connect with the mating part (314) to drive the movable part (31) to move axially along the first threaded pair (311).

5. The air spring (100) according to claim 1, characterized in that, The main body (312) is fitted with a first sealing ring (3121), which abuts against the inner wall of the active space (323).

6. The air spring (100) according to claim 1, characterized in that, The radial dimension of the main body (312) is smaller than the radial dimension of the connecting part (313).

7. The air spring (100) according to claim 1, characterized in that, The fixing member (32) is connected to the inner wall of the mounting cavity (11) by a second threaded pair (321), and / or the fixing member (32) is fitted with a second sealing ring (322), which is in a sealing fit with the inner wall of the mounting cavity (11).

8. A vehicle (1000), characterized in that, include: The air spring (100) according to any one of claims 1-7.

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