Air shock absorber and control method

Abstract

The present invention relates to the field of vehicle technology, and more specifically, to an air shock absorber and a control method. An air supply assembly; a shock absorbing assembly, the shock absorbing assembly includes a housing and a shock absorbing unit; a filter assembly, the filter assembly includes a support portion, a filter screen, and a valve unit. The air shock absorber includes a first exhaust state and a second exhaust state; the first exhaust state includes the pressure difference between the second chamber and the first chamber being less than or equal to 5 bar, and the gas in the first chamber passes through the filter screen, the second chamber, and the air supply assembly in sequence; the second exhaust state includes the pressure difference between the second chamber and the first chamber being greater than 5 bar, and the gas in the first chamber passes through the valve unit, the second chamber, and the air supply assembly in sequence. This solves the problem that the air shock absorber pipeline is easily blocked.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to an air shock absorber and a control method thereof. Background Art

[0002] With the development of vehicle technology, air shock absorbers are increasingly used in vehicles. Although spring shock absorbers can alleviate vibration to a certain extent, they have great limitations and poor shock absorption effect. Air shock absorbers are a type of equipment that uses the compressibility and fluidity of air to absorb vibration energy to achieve shock absorption. Air shock absorbers include shock absorption components and air supply components.

[0003] During the use of air shock absorbers, the air supply component is required to inflate and discharge air for the shock absorber component through the pipeline, so as to adjust the pressure inside the shock absorber component through the air supply component. However, during the use of air shock absorbers, the airbag and other components are prone to wear and produce debris, which can easily cause the shock absorber pipeline to be blocked, resulting in the inability of gas to flow, and then causing the shock absorber to be unusable. Summary of the invention

[0004] In order to solve the problem that the pipeline of an air shock absorber is easily blocked, the present invention provides an air shock absorber and a control method.

[0005] In a first aspect, the present invention provides an air shock absorber, the air shock absorber comprising:

[0006] Air supply components;

[0007] A shock absorbing assembly, the shock absorbing assembly comprising a housing and a shock absorbing unit; the housing is detachably connected to the shock absorbing unit; the housing is detachably connected to the air supply assembly;

[0008] A filter assembly, the filter assembly comprising a support portion, a filter screen, and a valve unit; the support portion is detachably connected to the shell; the filter screen and the valve unit are detachably connected to the support portion respectively; the space surrounded by the side of the filter screen close to the air supply assembly, the shell, and the support portion is a second chamber; the space surrounded by the side of the filter screen away from the air supply assembly, the support portion, the shock absorbing unit, and the shell is a first chamber; the air supply assembly is in communication with the second chamber;

[0009] The air shock absorber includes a first exhaust state and a second exhaust state; the first exhaust state includes that the pressure difference between the second chamber and the first chamber is less than or equal to 5 bar, and the gas in the first chamber passes through the filter, the second chamber, and the air supply component in sequence; the second exhaust state includes that the pressure difference between the second chamber and the first chamber is greater than 5 bar, and the gas in the first chamber passes through the valve unit, the second chamber, and the air supply component in sequence.

[0010] In some embodiments, when the central axis of the filter is spaced apart from the central axis of the shock absorbing unit, the valve unit is disposed on a side of the filter away from the central axis of the shock absorbing unit; or, when the central axis of the filter coincides with the central axis of the shock absorbing unit, the valve unit and the filter are spaced apart along the radial direction of the filter.

[0011] In some embodiments, the valve unit includes a valve module, a spherical body, and an elastic body; the valve module includes a valve body and an opening; one end of the valve body is detachably connected to the support portion, and the other end extends toward the first chamber; the opening is recessed from the outer peripheral surface of the valve body toward the central axis of the valve body; the opening is communicated with the hollow cavity of the valve body; the opening is arranged in the first chamber; the spherical body is arranged in the hollow cavity of the valve body; the elastic body is drivingly connected to the spherical body;

[0012] The first exhaust state also includes the sphere abutting against one end of the hollow cavity of the valve body close to the opening under the action of the elastomer; the second exhaust state also includes the sphere and the hollow cavity of the valve body close to the opening being spaced apart, and the gas in the first chamber passes through the opening, the hollow cavity of the valve body, the second chamber, and the gas supply assembly in sequence.

[0013] In some embodiments, the position of the opening is higher than the position of the filter.

[0014] In some embodiments, the opening is disposed on a side of the valve body away from the filter.

[0015] In some embodiments, the valve module also includes an avoidance portion; one end of the avoidance portion is fixedly connected to one end of the valve body away from the second chamber, and the other end extends in a direction away from the second chamber; the shortest distance between the avoidance portion and the central axis of the shock absorbing unit along the radial direction of the shock absorbing unit gradually decreases along the direction from the first chamber to the second chamber.

[0016] In some embodiments, the shock absorbing assembly further comprises a mounting portion; the mounting portion is fixedly connected to the housing; the mounting portion is detachably connected to the air supply assembly; the hollow cavity of the mounting portion is communicated with the second chamber; the hollow cavity of the mounting portion is detachably connected to the air supply assembly; the radial position of the mounting portion along the shock absorbing unit is spaced from the radial position of the valve unit along the shock absorbing unit;

[0017] The first exhaust state also includes the gas in the first chamber passing through the filter, the second chamber, the hollow cavity of the mounting part, and the gas supply component in sequence; the second exhaust state also includes the gas in the first chamber passing through the valve unit, the second chamber, the hollow cavity of the mounting part, and the gas supply component in sequence.

[0018] In some embodiments, a top end of the mounting portion is higher than a bottom end of the housing within the second chamber.

[0019] In some embodiments, the shock absorbing unit includes a shock absorbing rod, an airbag, and a shock absorbing cylinder; the shock absorbing rod is detachably connected to the outer shell; the airbag is detachably connected to the outer shell; the shock absorbing rod is slidably connected to the shock absorbing cylinder; the shock absorbing rod moves axially along the shock absorbing cylinder; one end of the airbag away from the outer shell is detachably connected to the shock absorbing cylinder; at least part of the shock absorbing cylinder and at least part of the shock absorbing rod are arranged in the space surrounded by the airbag.

[0020] In a second aspect, the present invention provides an air shock absorber control method, the air shock absorber control method is applied to any one of the air shock absorbers described in the first aspect, the air shock absorber control method comprises:

[0021] Step S10, based on the exhaust instruction trigger, the gas in the first chamber is compressed;

[0022] Step S20, based on the gas in the first chamber being compressed, obtaining a pressure difference between the pressure in the first chamber and the pressure in the second chamber;

[0023] Step S30, based on the pressure difference between the second chamber and the first chamber being less than or equal to 5 bar, the gas in the first chamber passes through the filter screen, the second chamber, and the gas supply assembly in sequence;

[0024] Step S40: based on the pressure difference in the second chamber being greater than the pressure in the first chamber being greater than 5 bar, the gas in the first chamber passes through the valve unit, the second chamber, and the gas supply assembly in sequence.

[0025] In order to solve the problem that the air shock absorber pipeline is easily blocked, the present invention has the following advantages:

[0026] The air shock absorber includes a first exhaust state and a second exhaust state. The first exhaust state includes that the pressure difference between the second chamber and the first chamber is less than or equal to 5 bar, and the gas in the first chamber passes through the filter, the second chamber, and the air supply assembly in sequence. The second exhaust state includes that the pressure in the second chamber is 5 bar greater than the pressure in the first chamber, and the gas in the first chamber passes through the valve unit, the second chamber, and the air supply assembly in sequence. When the filter of the shock absorber is blocked by debris, that is, the pressure difference between the second chamber and the first chamber is greater than 5 bar, the air shock absorber can be switched to the second exhaust state, that is, the gas in the first chamber passes through the valve unit, the second chamber, and the air supply assembly in sequence, thereby ensuring the normal use of the air shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of an air shock absorber according to an embodiment is shown;

[0028] Figure 2 A schematic diagram of an air shock absorber according to another embodiment is shown;

[0029] Figure 3 A partial schematic diagram of an air shock absorber according to an embodiment is shown;

[0030] Figure 4 A partial schematic diagram of an air shock absorber according to another embodiment is shown.

[0031] Figure markings: 01 air supply assembly; 11 air supply part; 12 air pipe; 02 filter assembly; 21 support part; 22 filter screen; 23 valve unit; 231 valve module; 2311 valve body; 2312 opening part; 2313 avoidance part; 232 sphere; 233 elastomer; 03 shock absorbing assembly; 31 shell; 32 shock absorbing unit; 321 shock absorbing rod; 322 airbag; 323 shock absorbing cylinder; 33 installation part. DETAILED DESCRIPTION

[0032] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0033] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0034] In this embodiment, the air shock absorber is a device that utilizes the compressibility and fluidity of gas to absorb vibration energy, thereby achieving a shock absorbing effect. The shock absorbing component 03 of the air shock absorber can be connected to the air supply part 11 of the air shock absorber through a pipeline, so that the gas can flow between the shock absorbing component 03 and the pipeline. However, during the use of the air shock absorber, due to wear and tear inside the air shock absorber, debris may be generated. When the debris enters the pipeline, it will cause the air shock absorber pipeline to be blocked, thereby preventing the gas from flowing. This embodiment discloses an air shock absorber, such as Figure 2 As shown, the air shock absorber may include: an air supply component 01, a filter component 02, and a shock absorbing component 03. Figure 1As shown, the air supply component 01 can be used to adjust the gas pressure inside the shock absorbing component 03 by charging and discharging gas, and the air supply component 01 can include an air supply part 11 and an air pipe 12. The shock absorbing component 03 can include a shell 31 and a shock absorbing unit 32. The shell 31 is detachably connected to the shock absorbing unit 32. The shell 31 is detachably connected to the air supply component 01. The filter component 02 can include a support part 21, a filter screen 22, and a valve unit 23. The support part 21 is detachably connected to the shell 31 to fix the relative position of the support part 21 and the shell 31. The filter screen 22 and the valve unit 23 are detachably connected to the support part 21 respectively. By setting the filter component 02, debris is prevented from entering the air supply component 01, thereby causing the air supply component 01 to be blocked. The space surrounded by the filter screen 22 close to the side of the air supply component 01, the shell 31, and the support part 21 can be the second chamber. The space surrounded by the filter screen 22 away from the side of the air supply component 01, the support part 21, the shock absorbing unit 32, and the shell 31 can be the first chamber. The air supply assembly 01 can be connected to the second chamber, so that the gas can flow through the second chamber and the air supply assembly 01. The air shock absorber can include a first exhaust state and a second exhaust state. The first exhaust state can include that the pressure difference between the second chamber and the first chamber is less than or equal to 5 bar, and the gas in the first chamber can pass through the filter 22, the second chamber, and the air supply assembly 01 in sequence. The second exhaust state can include that the pressure difference between the second chamber and the first chamber is greater than 5 bar, and the gas in the first chamber can pass through the valve unit 23, the second chamber, and the air supply assembly 01 in sequence. When the gas needs to flow from the first chamber to the air supply assembly 01, and the filter 22 of the shock absorber is blocked by debris, that is, the pressure difference between the second chamber and the first chamber is greater than 5 bar, the gas in the first chamber can pass through the valve unit 23, the second chamber, and the air supply assembly 01 in sequence, thereby ensuring the normal use of the air shock absorber. The valve unit 23 can allow the gas to flow from the first chamber into the second chamber through the valve unit 23, but cannot flow from the second chamber into the first chamber through the valve unit 23. When the first chamber needs to be inflated, the gas can pass through the second chamber and the filter screen 22 from the gas supply component 01 to the first chamber in sequence. When the gas passes through the filter screen 22, the debris on the filter screen 22 can be flushed away, thereby achieving the purpose of cleaning the debris on the filter screen 22.

[0035] In this embodiment, when the central axis of the filter screen 22 is spaced from the central axis of the shock absorbing unit 32, the valve unit 23 can be set on the side of the filter screen 22 away from the central axis of the shock absorbing unit 32. Since the valve unit 23 is far from the central axis of the shock absorbing unit 32, during the use of the air shock absorber, the debris in the shock absorbing unit 32 is not easily brought to the valve unit 23, thereby avoiding the blockage of the valve unit 23. Alternatively, when the central axis of the filter screen 22 coincides with the central axis of the shock absorbing unit 32, the valve unit 23 can be spaced from the filter screen 22 along the radial direction of the filter screen 22.

[0036] In this embodiment, the valve unit 23 may include a valve module 231, a spherical body 232, and an elastic body 233. The valve module 231 may include a valve body 2311 and an opening 2312. One end of the valve body 2311 is detachably connected to the support portion 21, and the other end may extend toward the direction close to the first chamber, so that one end of the valve body 2311 may be higher than the support portion 21 to prevent debris from entering the valve body 2311 and causing blockage. The opening 2312 may be recessed from the outer peripheral surface of the valve body 2311 toward the central axis of the valve body 2311 to prevent debris from entering the opening 2312 and causing blockage. The opening 2312 may be connected to the hollow cavity of the valve body 2311. The opening 2312 may be arranged in the first chamber. The spherical body 232 may be arranged in the hollow cavity of the valve body 2311. The elastic body 233 and the spherical body 232 may be drivingly connected.

[0037] The first exhaust state may also include that the ball 232 abuts against one end of the hollow cavity of the valve body 2311 near the opening 2312 under the action of the elastic body 233, and the gas can enter the second chamber from the first chamber through the filter 22. The second exhaust state may also include that the ball 232 is spaced apart from one end of the hollow cavity of the valve body 2311 near the opening 2312, and the gas in the first chamber can pass through the opening 2312, the hollow cavity of the valve body 2311, the second chamber, and the gas supply component 01 in sequence. When the pressure in the first chamber is too high, the ball 232 can be squeezed by the gas, so that the ball 232 can be spaced apart from one end of the hollow cavity of the valve body 2311 near the opening 2312. The valve unit 23 can allow the gas to flow from the first chamber into the second chamber through the valve unit 23, but cannot flow from the second chamber into the first chamber through the valve unit 23. When the first chamber needs to be inflated, the gas can pass through the second chamber and the filter screen 22 from the gas supply component 01 to the first chamber in sequence. When the gas passes through the filter screen 22, the debris on the filter screen 22 can be flushed away, thereby achieving the purpose of cleaning the debris on the filter screen 22.

[0038] In this embodiment, the position of the opening 2312 may be higher than the position of the filter screen 22. Since the debris has a certain weight, the higher position of the opening 2312 can further prevent the debris from entering the opening 2312, causing the opening 2312 to be blocked.

[0039] In this embodiment, the opening portion 2312 can be set on the side of the valve body 2311 away from the filter 22. When the filter 22 is blocked, the gas in the second chamber impacts the debris on the filter 22. At this time, since the opening portion 2312 is set on the side of the valve body 2311 away from the filter 22, it will not affect the airflow impacting the debris on the filter 22 and can also prevent the debris from entering the valve unit 23.

[0040] In this embodiment, if Figure 4As shown, the valve module 231 may further include an avoidance portion 2313. One end of the avoidance portion 2313 may be fixedly connected to one end of the valve body 2311 away from the second chamber, and the other end may extend in a direction away from the second chamber. The shortest distance between the avoidance portion 2313 and the central axis of the shock absorbing unit 32 along the radial direction of the shock absorbing unit 32 may gradually decrease in the direction from the first chamber to the second chamber. Even if debris adheres to the avoidance portion 2313, the debris may move toward the filter screen 22 under the action of gravity. At the same time, with the vibration generated by the running of the vehicle, the avoidance portion 2313 may more effectively guide the debris toward the filter screen 22, thereby preventing the debris from entering the air supply component 01 through the opening portion 2312 and the hollow cavity of the valve body 2311 in sequence.

[0041] In this embodiment, the shock absorbing assembly 03 may further include a mounting portion 33. The mounting portion 33 may be fixedly connected to the housing 31. The mounting portion 33 is detachably connected to the air supply assembly 01. The hollow cavity of the mounting portion 33 is in communication with the second chamber. The hollow cavity of the mounting portion 33 is detachably connected to the air supply assembly 01. The radial position of the mounting portion 33 along the shock absorbing unit 32 may be spaced apart from the radial position of the valve unit 23 along the shock absorbing unit 32. The gas from the valve unit 23 does not directly enter the mounting portion 33 along the central axis of the valve unit 23, but allows the gas from the valve unit 23 to enter the mounting portion 33 after being buffered by the second chamber, so that the debris carried by the gas can be retained on the outer peripheral side of the mounting portion 33 in the second chamber, thereby preventing the debris from entering the air supply assembly 01 through the mounting portion 33.

[0042] The first exhaust state may also include the gas in the first chamber passing through the filter 22, the second chamber, the hollow cavity of the mounting portion 33, and the gas supply component 01 in sequence. The second exhaust state may also include the gas in the first chamber passing through the valve unit 23, the second chamber, the hollow cavity of the mounting portion 33, and the gas supply component 01 in sequence.

[0043] In this embodiment, the top end of the mounting portion 33 can be higher than the bottom end of the outer shell 31 in the second chamber, so that a buffer zone for debris can be formed on the outer peripheral side of the mounting portion 33 in the second chamber, so that a buffer can be provided when debris enters the second chamber, and the debris can stay on the outer peripheral side of the mounting portion 33 in the second chamber to prevent debris from entering the air supply assembly 01.

[0044] In this embodiment, if Figure 3As shown, the shock absorbing unit 32 may include a shock absorbing rod 321, an air bag 322, and a shock absorbing cylinder 323. The shock absorbing rod 321 is detachably connected to the housing 31. The air bag 322 is detachably connected to the housing 31. The shock absorbing rod 321 and the shock absorbing cylinder 323 may be slidably connected. The shock absorbing rod 321 may move along the axial direction of the shock absorbing cylinder 323, and the shock absorbing rod 321 and the shock absorbing cylinder 323 may play a guiding role to prevent the air bag 322 from moving laterally. One end of the air bag 322 away from the housing 31 is detachably connected to the shock absorbing cylinder 323. At least part of the shock absorbing cylinder 323 and at least part of the shock absorbing rod 321 may be arranged in the space surrounded by the air bag 322. The air bag 322 may store and release gas, and play a certain buffering role on the shock absorbing assembly 03.

[0045] This embodiment discloses an air shock absorber control method, which can be applied to the air shock absorber of any of the above embodiments. The air shock absorber control method may include steps S10 to S40, and each step is described in detail as follows:

[0046] Step S10: based on the exhaust instruction trigger, the gas in the first chamber can be compressed.

[0047] Step S20: Based on the gas in the first chamber being compressed, the pressure difference between the first chamber and the second chamber can be obtained. By obtaining the pressure difference between the first chamber and the second chamber, it is determined whether the filter screen 22 is blocked.

[0048] Step S30, based on the pressure difference between the second chamber and the first chamber being less than or equal to 5 bar, the gas in the first chamber can pass through the filter 22, the second chamber, and the gas supply assembly 01 in sequence.

[0049] Step S40, based on the pressure difference in the second chamber being greater than 5 bar than the pressure difference in the first chamber, the gas in the first chamber can pass through the valve unit 23, the second chamber, and the air supply component 01 in sequence. When the filter 22 of the shock absorber is blocked by debris, that is, the pressure difference in the second chamber is greater than 5 bar than the pressure difference in the first chamber, the air shock absorber can be switched to the second exhaust state, that is, the gas in the first chamber passes through the valve unit 23, the second chamber, and the air supply component 01 in sequence, thereby ensuring the normal use of the air shock absorber. The valve unit 23 can allow the gas to flow from the first chamber into the second chamber through the valve unit 23, but cannot flow from the second chamber into the first chamber through the valve unit 23. When it is necessary to inflate the first chamber, the gas can pass through the second chamber and the filter 22 from the air supply component 01 in sequence to reach the first chamber. When the gas passes through the filter 22, the debris on the filter 22 can be flushed away, thereby achieving the purpose of cleaning the debris on the filter 22.

[0050] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. An air shock absorber, characterized in that: The air shock absorber comprises: Air supply components; A shock absorbing assembly, the shock absorbing assembly comprising a housing and a shock absorbing unit; the housing is detachably connected to the shock absorbing unit; the housing is detachably connected to the air supply assembly; A filter assembly, the filter assembly comprising a support portion, a filter screen, and a valve unit; the support portion is detachably connected to the shell; the filter screen and the valve unit are detachably connected to the support portion respectively; the space surrounded by the side of the filter screen close to the air supply assembly, the shell, and the support portion is a second chamber; the space surrounded by the side of the filter screen away from the air supply assembly, the support portion, the shock absorbing unit, and the shell is a first chamber; the air supply assembly is in communication with the second chamber; The air shock absorber includes a first exhaust state and a second exhaust state; the first exhaust state includes that the pressure difference between the second chamber and the first chamber is less than or equal to 5 bar, and the gas in the first chamber passes through the filter, the second chamber, and the air supply component in sequence; the second exhaust state includes that the pressure difference between the second chamber and the first chamber is greater than 5 bar, and the gas in the first chamber passes through the valve unit, the second chamber, and the air supply component in sequence; The valve unit comprises a valve module, a sphere, and an elastic body; the valve module comprises a valve body and an opening; one end of the valve body is detachably connected to the support portion, and the other end extends toward the first chamber; the opening is recessed from the outer peripheral surface of the valve body toward the central axis of the valve body; the opening is communicated with the hollow cavity of the valve body; the opening is arranged in the first chamber; the sphere is arranged in the hollow cavity of the valve body; the elastic body is drivingly connected to the sphere; The first exhaust state also includes that the ball abuts against one end of the hollow cavity of the valve body close to the opening under the action of the elastic body; the second exhaust state also includes that the ball is spaced apart from one end of the hollow cavity of the valve body close to the opening, and the gas in the first chamber passes through the opening, the hollow cavity of the valve body, the second chamber, and the gas supply component in sequence; The shock absorbing unit comprises an airbag; the airbag is detachably connected to the shell.

2. An air shock absorber according to claim 1, characterized in that: When the central axis of the filter screen is spaced apart from the central axis of the shock absorbing unit, the valve unit is arranged on the side of the filter screen away from the central axis of the shock absorbing unit; or, when the central axis of the filter screen coincides with the central axis of the shock absorbing unit, the valve unit and the filter screen are spaced apart along the radial direction of the filter screen.

3. The air shock absorber according to claim 1, characterized in that: The position of the opening is higher than the position of the filter.

4. The air shock absorber according to claim 1, characterized in that: The opening is arranged on a side of the valve body away from the filter screen.

5. The air shock absorber according to claim 1, characterized in that: The valve module also includes an avoidance portion; one end of the avoidance portion is fixedly connected to an end of the valve body away from the second chamber, and the other end extends in a direction away from the second chamber; the shortest distance between the avoidance portion and the central axis of the shock absorbing unit along the radial direction of the shock absorbing unit gradually decreases along the direction from the first chamber to the second chamber.

6. The air shock absorber according to claim 1, characterized in that: The shock absorbing assembly further comprises a mounting portion; the mounting portion is fixedly connected to the housing; the mounting portion is detachably connected to the air supply assembly; the hollow cavity of the mounting portion is communicated with the second chamber; the hollow cavity of the mounting portion is detachably connected to the air supply assembly; the radial position of the mounting portion along the shock absorbing unit is spaced from the radial position of the valve unit along the shock absorbing unit; The first exhaust state also includes the gas in the first chamber passing through the filter, the second chamber, the hollow cavity of the mounting part, and the gas supply component in sequence; the second exhaust state also includes the gas in the first chamber passing through the valve unit, the second chamber, the hollow cavity of the mounting part, and the gas supply component in sequence.

7. An air shock absorber according to claim 6, characterized in that: The top end of the mounting portion is higher than the bottom end of the housing in the second chamber.

8. The air shock absorber according to claim 1, characterized in that: The shock absorbing unit also includes a shock absorbing rod and a shock absorbing cylinder; the shock absorbing rod is detachably connected to the outer shell; the shock absorbing rod is slidably connected to the shock absorbing cylinder; the shock absorbing rod moves along the axial direction of the shock absorbing cylinder; the end of the airbag away from the outer shell is detachably connected to the shock absorbing cylinder; at least part of the shock absorbing cylinder and at least part of the shock absorbing rod are arranged in the space surrounded by the airbag.

9. A control method, characterized in that: The control method is applied to an air shock absorber as described in any one of claims 1 to 8, and the control method comprises: Step S10, based on the exhaust instruction trigger, the gas in the first chamber is compressed; Step S20, based on the gas in the first chamber being compressed, obtaining a pressure difference between the pressure in the first chamber and the pressure in the second chamber; Step S30, based on the pressure difference between the second chamber and the first chamber being less than or equal to 5 bar, the gas in the first chamber passes through the filter screen, the second chamber, and the gas supply assembly in sequence; Step S40: based on the pressure difference in the second chamber being greater than the pressure in the first chamber being greater than 5 bar, the gas in the first chamber passes through the valve unit, the second chamber, and the gas supply assembly in sequence.

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