Air spring and vehicle

Abstract

The utility model discloses an air spring and a vehicle, and the air spring comprises a piston which extends along a first direction and comprises a first part and a second part; the bag skin and the dustproof cover guide pipe are connected, the bag skin is connected between the bag skin guide pipe and the first part, the bag skin is provided with a first deformation section, and a dustproof cover is arranged between the dustproof cover guide pipe and the second part; the dustproof cover comprises a third part, a fourth part and a second deformation section, and the third part surrounds the second part and is in attached connection with the outer surface of the second part; the fourth part is spaced in the second direction and surrounds the third part, and the fourth part is connected with the dust cover guide pipe; the second deformation section is connected between the third part and the fourth part; the first deformation section, the second deformation section, the first dust cover guide pipe and the dust cover guide pipe jointly define a sealing cavity, and the second deformation section and the first deformation section are arranged in a spaced mode in the first direction and used for synchronous movement. The service life of the air spring can be effectively prolonged, and the noise generation probability is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an air spring and a vehicle. Background Art

[0002] Air springs are elastic components that use compressed air as their elastic medium and are primarily used in vehicle suspension systems. The air spring's bladder can wear out due to the ingress of dust and moisture, which in turn reduces the air spring's service life. To prevent dust and moisture from entering the air spring, a dust cover is typically installed.

[0003] Existing dust covers are usually composed of several pleats so that they can move synchronously with the compression and extension of the air spring. The volume change of the pleats during the flattening and expansion process will cause drastic changes in the pressure inside the dust cover. Therefore, it is necessary to design an air inlet and exhaust structure on this type of dust cover.

[0004] However, foreign matter such as moisture, dust, and sand can enter the cavity formed by the dust cover and the air spring through the intake and exhaust structures, causing unexpected wear and tear on the air spring and reducing its service life. Furthermore, the intake and exhaust structures can easily cause whistling or other noises. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem of low dust and water resistance of traditional air spring dust covers. The utility model provides an air spring and a vehicle. The air spring of the utility model can effectively prevent foreign matter such as water vapor, dust, sand and stones from entering the dust cover through the air intake and exhaust structures, thereby increasing the service life of the air spring and effectively reducing the probability of noise generation.

[0006] In order to solve the above technical problems, the embodiment of the present utility model discloses an air spring, comprising:

[0007] A piston extending in a first direction, the piston comprising a first portion and a second portion connected to each other;

[0008] A bladder skin guide tube and a dust cover guide tube are connected, a bladder skin is connected between the bladder skin guide tube and the first part, the bladder skin has a first deformation section, and a dust cover is provided between the dust cover guide tube and the second part;

[0009] The dust cover comprises: a third portion, a fourth portion and a second deformation section, wherein:

[0010] The third portion surrounds the second portion and is in close contact with at least a portion of the outer surface of the second portion;

[0011] The fourth portion is spaced apart along the second direction and surrounds the third portion, and the fourth portion is connected to the dust cover guide tube; the second deformation section is connected between the third portion and the fourth portion;

[0012] The first deformation segment, the second deformation segment, the bladder skin guide tube, and the dust cover guide tube jointly define a sealed cavity. Along the first direction, the second deformation segment and the first deformation segment are spaced apart and are used for synchronous movement.

[0013] Using the above technical solution, the dust cover of the embodiment of the present application includes a third part, a fourth part, and a second deformation segment, wherein the inner wall of the third part is used to fit and connect with the outer surface of the second part of the piston, the fourth part is connected to the bladder skin through the dust cover guide tube and the bladder skin guide tube, and the second deformation segment is connected between the fourth part and the third part.

[0014] Based on this structure, when the piston extends in the first direction (that is, the air spring is in an extended state, and for the sake of convenience, extension is defined as "downward movement"), the first deformation segment of the bladder skin sealed with the piston will also move downward with the piston. At the same time, the piston will drive the third part connected to it to move downward, and the third part will further drive the fourth part and the second deformation part connected to it to move synchronously, that is, during the extension of the piston, it will drive the second deformation segment to move downward more evenly.

[0015] Similarly, when the piston retracts in the first direction (i.e., the air spring is in a compressed state, and for ease of explanation, compression is defined as "upward movement"), the first deformation segment of the bladder skin sealed with the piston will also move upward with the piston. At the same time, the piston will drive the third part connected to it to move upward, and the third part will further drive the fourth part and the second deformation part connected to it to move synchronously, that is, during the retraction of the piston, the second deformation segment will be driven upward more evenly.

[0016] That is, when the piston extends or retracts along the first direction, the first deformation segment of the bladder skin and the second deformation segment of the dust cover will move synchronously downward or upward along the first direction, which means that the distance between the first deformation segment and the second deformation segment will not change significantly, and will not cause drastic changes in pressure. In other words, the dust cover of the embodiment of the present application changes the traditional pleated structure provided on the outer surface into a third part, a fourth part and a second deformation segment that are connected. The third part and the fourth part are connected between the bladder skin and the piston. When the piston moves, the first deformation segment of the bladder skin moves accordingly, and the second deformation segment connected between the third part and the fourth part will also move synchronously. This process can realize the basic function of the dust cover to move synchronously with the extension and retraction of the piston.

[0017] Importantly, the synchronous movement of the first and second deforming sections does not cause drastic changes in pressure. Therefore, the dust cover of the present embodiment does not need to be equipped with an inlet or exhaust structure (e.g., an inlet or exhaust port). Consequently, during vehicle operation, foreign matter such as moisture, dust, and sand cannot enter the dust cover through the inlet or exhaust structure, thereby preventing wear on the bladder skin within the dust cover and effectively extending the service life of the air spring of the present embodiment. Furthermore, the lack of an inlet or exhaust structure effectively reduces the likelihood of the air spring whistling or generating other noises.

[0018] According to another specific embodiment of the present invention, the second deformation section has an arc-shaped structure.

[0019] According to another specific embodiment of the present invention, the third portion, the fourth portion and the second deformation section are integrally formed.

[0020] According to another specific embodiment of the present invention, wherein: the bladder skin guide tube is arranged around the first deformation section and at least a portion of the first portion, and the end of the bladder skin guide tube is further provided with a first connecting portion;

[0021] The dust cover guide tube is provided with a second connecting portion and a third connecting portion, the second connecting portion is connected to the first connecting portion, and the third connecting portion is connected to the fourth portion.

[0022] According to another specific embodiment of the present invention, the first connecting portion includes a locking boss, and the second connecting portion includes a locking groove. The locking boss and the locking groove extend along a third direction respectively and are matched and connected to each other; the third direction is arranged around the first direction.

[0023] According to another specific embodiment of the present invention, the third connecting portion includes a connecting boss, and an end of the fourth portion away from the second deformation section is used to be connected to the connecting boss.

[0024] According to another specific embodiment of the present invention, the connecting boss and the fourth portion are fixed by any one of welding, bonding, heat sealing, compression molding, interference fit, and cable tie fixing.

[0025] An embodiment of the present utility model further discloses a vehicle, comprising: the air spring described in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of an air spring in some implementation forms of the present invention is shown.

[0027] Figure 2 A cross-sectional view of an air spring according to an embodiment of the present invention is shown.

[0028] Figure 3 Shows the three-dimensional dust cover of the air spring in the embodiment of the utility model Figure 1 .

[0029] Figure 4A Shows the three-dimensional dust cover of the air spring in the embodiment of the utility model Figure 2 .

[0030] Figure 4B A cross-sectional view of a dust cover in an air spring according to an embodiment of the present invention is shown.

[0031] Figure 5 A partially enlarged cross-sectional view of the air spring of the present utility model embodiment is shown Figure 1 .

[0032] Figure 6 A partially enlarged cross-sectional view of the air spring of the present utility model embodiment is shown Figure 2 . DETAILED DESCRIPTION

[0033] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0036] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0037] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0039] refer to Figure 1 , Figure 1 A cross-sectional view of an air spring 1000 provided in some embodiments of the present application is shown.

[0040] like Figure 1 As shown, the air spring 1000 includes a spring body 1100 , a pleated dust cover 1200 and a spring guide tube 1300 .

[0041] It can be seen that a portion of the spring body 1100 is surrounded by the pleated dust cover 1200, and another portion of the spring body 1100 is surrounded by the spring guide tube 1300, and one end of the pleated dust cover 1200 is sealed connected to the spring guide tube 1300, and the other end is sealed connected to the spring body 1100.

[0042] It should be noted that the embodiment of the present application does not impose any specific restrictions on the connection method between the pleated dust cover 1200 and the spring guide tube 1300, and the pleated dust cover 1200 and the spring body 1100.

[0043] The pleated dust cover 1200 has a plurality of flexible pleats 1201. When the spring body 1100 is stretched (eg Figure 1 As shown in the state), a plurality of folds 1201 are formed along the length direction of the air spring 1000 (as shown in the state shown in the Figure 1 When the spring body 1100 is compressed, the plurality of folds 1201 are unfolded along the direction shown in FIG. Figure 1 The direction A1 shown is flattened, that is, the pleated dust cover 1200 can move synchronously with the compression or extension of the spring body 1100, thereby playing a protective role for the spring body 1100.

[0044] At the same time, since the pleated dust cover 1200 has the above-mentioned pleated structure, multiple pleats 1201 will form a chamber 1400 with the outer wall of the spring body 1100. It can be understood that in the process of flattening and unfolding the multiple pleats 1201, each pleat 1201 will produce a large volume change, thereby causing a large pressure change in the chamber 1400. Therefore, it can be seen that the bottom of the pleated dust cover 1200 is also provided with an air inlet and exhaust port 1202, which is connected to the outside world, so as to balance the gas in the chamber 1400.

[0045] In actual application, water vapor, dust, sand and gravel usually enter the chamber 1400 through the inlet and exhaust ports 1202 (e.g., along the Figure 1 The dust and sand that enter the spring body 1100 can easily cause wear and tear on the spring body 1100, and the water vapor can also corrode the metal parts (such as the support ring, wire ring, etc.) in the spring body 1100, or accelerate the aging of the rubber bag skin in the spring body 1100.

[0046] On the other hand, when the spring body 1100 is compressed or stretched rapidly, the volume in the chamber 1400 will change rapidly, causing the air flow speed at the inlet and exhaust ports 1202 to be instantly high, which is likely to generate noise or even howling.

[0047] In order to solve the above technical problems, refer to Figure 2 The present invention also provides an air spring 100 and a vehicle using the air spring 100 . The air spring 100 of the present invention includes a piston 110 , a bladder 120 , a dust cover 130 , a bladder guide tube 140 , and a dust cover guide tube 133 .

[0048] The dust cover 130 does not have a pleated structure (eg Figure 1 shown in the folds 1201) and the intake and exhaust structures (e.g. Figure 1 Inlet and exhaust ports 1202 are shown).

[0049] Specifically, the piston 110 moves in a first direction (eg Figure 2 The piston 110 extends in the Z direction (shown in FIG), and includes a first portion 111 and a second portion 112 connected to each other.

[0050] As can be seen, the bladder skin guide tube 140 surrounds at least a portion of the first portion 111, and the bladder skin 120 is sealed between the bladder skin guide tube 140 and the first portion 111. Those skilled in the art will appreciate that because the bladder skin 120 is made of a flexible material (e.g., rubber with a high-strength fabric layer such as nylon or polyester added to the rubber), when connected to the piston 110 (first portion 111) and the bladder skin guide tube 140, the bladder skin 120 defines a folded section that is deformable, namely, the first deformable section 121 in the embodiment of the present application.

[0051] Furthermore, the dust cover guide tube 133 surrounds at least a portion of the dust cover 130 and at least a portion of the second portion 112 , and the dust cover 130 is connected between the dust cover guide tube 133 and the second portion 112 .

[0052] refer to Figure 3 、 Figure 4A 、 Figure 4B Combined with Figure 2 , Figure 3 and Figure 4A The three-dimensional diagrams of the dust cover 130 are shown as examples. Figure 4B A cross-sectional view of the dust cover 130 is shown as an example.

[0053] It can be seen that the dust cover 130 includes a first cover portion 131 (also known as the "third portion") and a second cover portion 132. Figure 4A As shown, the first cover portion 131 is circumferentially (as shown in FIG. Figure 4A The R direction shown in FIG surrounds the second cover portion 132. Exemplarily, the first cover portion 131 and the second cover portion 132 are integrally formed.

[0054] like Figure 2 As shown, the first cover portion 131 surrounds the outer surface of the second portion 112 in the piston 110 , and the inner wall of the first cover portion 131 is in contact with the outer surface of the second portion 112 .

[0055] It should be noted that in the embodiment of the present application, there are no specific restrictions on the shape and size of the first portion 111 and the second portion 112 of the piston 110. Furthermore, the first cover portion 131 may surround the entire second portion 112, or may surround one-half, two-thirds, or other lengths of the second portion 112. This embodiment of the present application does not impose any restrictions on this, and the selection can be made based on the actual application design. It should also be noted that the embodiment of the present application does not impose any restrictions on the fixing method of the first cover portion 131 and the second portion 112.

[0056] Furthermore, it can be seen that one end of the first cover portion 131 (ie Figure 2 The end indicated by the Z2 direction in the middle) is connected to the second part 112, and the other end (ie Figure 2 The end indicated by the Z1 direction in the figure is connected to the first cover portion 131 (specifically, connected to the second deformation section 1321 described below). It should be noted that the embodiment of the present application does not limit the connection method between the first cover portion 131 and the piston 110.

[0057] like Figure 4A and Figure 4B As shown, the second cover portion 132 includes a second deformation segment 1321 and a surrounding segment 1322 (the surrounding segment 1322 is also called the “fourth portion”).

[0058] The surrounding section 1322 is in a direction away from the capsule skin along the first direction (eg Figure 4A The surrounding section 1322 is capable of surrounding a portion of the first cover portion 131 and further combining with Figure 2 , the surrounding segment 1322 is along the second direction (such as Figure 2 The first cover portion 131 is spaced apart from the first cover portion 131 and can be indirectly connected to the bladder skin 120 through the bladder skin guide tube 140 and the dust cover guide tube 133.

[0059] like Figure 4A and Figure 4B As shown, one end of the second deformable segment 1321 is connected to the first cover portion 131, and the other end of the second deformable segment 1321 is connected to the surrounding segment 1322. Exemplarily, the second deformable segment 1321 is an arc-shaped structure.

[0060] like Figure 2 As shown, along the first direction (such as Figure 2 In the Z direction shown in FIG, the first deformable segment 121 of the capsule skin 120 and the second deformable segment 1321 of the second cover portion 132 are spaced apart (for example, spaced apart from each other by a first spacing d), and the first deformable segment 121 and the second deformable segment 1321 move synchronously.

[0061] That is to say, when the first deformation segment 121 moves downward along the first direction, the second deformation segment 1321 also moves downward synchronously, or, when the first deformation segment 121 moves along the first direction, the second deformation segment 1321 also moves upward synchronously, so that the volume of the sealed cavity 160 formed between the two (the sealed cavity 160 is jointly defined by the first deformation segment 121, the second deformation segment 1321, the bladder guide tube 140 and the dust cover guide tube 133) does not change or changes very little.

[0062] In other words, in the embodiment of the present application, the first spacing d between the first deformable segment 121 and the second deformable segment 1321 remains unchanged or undergoes only minor changes. It should be noted that the fact that the volume of the sealed cavity 160 remains unchanged or undergoes only minor changes (the first spacing d remains unchanged or undergoes only minor changes. For example, 10 mm ≤ first spacing d ≤ 20 mm, but this is not limited to this) means that the sealed cavity 160 does not undergo drastic changes, and such drastic changes urgently need to be balanced by the external environment, and that relatively minor volume changes within the sealed cavity 160 are acceptable.

[0063] Using the above technical solution, the dust cover 130 of the present embodiment includes a first cover portion 131 (also known as the "third portion") and a second cover portion 132 (also known as the "fourth portion and second deformable segment"). The inner wall of the first cover portion 131 is designed to mate with the outer surface of the second portion of the piston 110, i.e., there is no cavity between the first cover portion 131 and the second portion 112. The second cover portion 132 includes a second deformable segment 1321 and a surrounding segment 1322 (also known as the "fourth portion"). The surrounding segment 1322 is designed to connect to the bladder skin 120, while the second deformable segment 1321 is connected between the surrounding segment 1322 and the first cover portion 131.

[0064] Based on this structure, when the piston 110 extends in the first direction (i.e., the air spring is in the extended state, for the sake of convenience, extension is defined as "downward movement"), the first deformable section 121 of the bladder skin 120 sealed with the piston 110 moves downward together with the piston 110 (for example, along the Figure 2 At the same time, the piston 110 also drives the first cover portion 131 connected thereto to move downward, and the first cover portion 131 further drives the second cover portion 132 connected thereto to move synchronously, that is, during the extension of the piston 110, the second deformation section 1321 of the second cover portion 132 will be driven downward more evenly.

[0065] Similarly, when the piston 110 retracts in the first direction (i.e., the air spring is in a compressed state, for ease of explanation, compression is defined as "upward movement"), the first deformable section 121 of the bladder skin 120 sealed with the piston 110 moves upward along with the piston 110 (e.g., along the Figure 2 At the same time, the piston 110 drives the first cover portion 131 connected thereto to move upward, and the first cover portion 131 further drives the second cover portion 132 connected thereto to move synchronously, that is, during the retraction of the piston 110, the second deformation section 1321 of the second cover portion 132 is driven to move upward more evenly.

[0066] That is to say, when the piston 110 extends or retracts along the first direction, the first deformation segment 121 of the bladder skin 120 and the second deformation segment 1321 of the dust cover 130 will move synchronously downward or upward along the first direction, which means that the distance between the first deformation segment 121 and the second deformation segment 1321 will not change significantly, and will not cause drastic changes in pressure. That is to say, the dust cover 130 of the embodiment of the present application changes the traditional pleated structure provided on the outer surface to a second cover portion 132, and the surrounding segment 1322 of the second cover portion 132 is connected between the bladder skin 120 and the piston 110. When the piston 110 moves, the first deformation segment 121 of the bladder skin 120 moves accordingly, and the second deformation segment 1321 connected to the surrounding segment 1322 will also move synchronously therewith. This process can realize the basic function of the dust cover 130 to move synchronously with the extension and retraction of the piston 110.

[0067] Importantly, the synchronous movement of the first deformable section 121 and the second deformable section 1321 does not cause drastic changes in pressure. Therefore, the dust cover 130 of the present embodiment does not need to be provided with an inlet or exhaust structure (e.g., an inlet or exhaust port). Consequently, during vehicle operation, foreign matter such as moisture, dust, and sand cannot enter the dust cover 130 through the inlet or exhaust structure, thereby preventing wear on the bladder skin 120 within the dust cover 130. This effectively increases the service life of the air spring of the present embodiment. Furthermore, the lack of an inlet or exhaust structure effectively reduces the likelihood of the air spring whistling or generating other noise.

[0068] refer to Figure 2 For example, the above-mentioned skin guide tube 140 is connected to the skin 120. The embodiment of the present application does not limit the connection method of the skin guide tube 140 and the skin 120. It can be seen that the skin guide tube 140 is arranged around the first deformation section 121 and at least a part of the first portion 111. The end of the skin guide tube 140 (i.e. Figure 2 A first connecting portion 141 is also provided at one end (in the Z2 direction).

[0069] Meanwhile, the dust cover guide tube 133 is provided with a second connection portion 1331 and a third connection portion 1332 spaced apart along the first direction.

[0070] refer to Figure 5 and Figure 6 Combined with Figure 2 It can be seen that the second connection part 1331 of the dust cover guide tube 133 is connected to the first connection part 141 of the bladder guide tube 140, and the third connection part 1332 of the dust cover guide tube 133 is used to connect with the surrounding section 1322, and at least a part of the outer surface of the surrounding section 1322 is used to fit with the inner wall of the dust cover guide tube 133.

[0071] like Figure 5As shown, exemplarily, the first connection portion 141 includes a snap-fitting boss 1411 , and the second connection portion 1331 includes a snap-fitting groove 13311 . The snap-fitting boss 1411 and the snap-fitting groove 13311 extend along a third direction (eg, circumferential direction) respectively and are matched and connected to each other.

[0072] The embodiment of the present application does not impose any specific limitation on the connection method between the first connection part 141 and the second connection part 1331. For example, the first connection part 141 and the second connection part 1331 can also be sealed and fixed by bonding, screwing, etc.

[0073] like Figure 6 As shown, illustratively, the third connecting portion 1332 of the dust cover guide tube 133 includes a connecting boss 13321, and an end of the surrounding section 1322 away from the second deformable section 1321 is wrapped around the connecting boss 13321. Exemplarily, the connecting boss 13321 and the surrounding section 1322 wrapped therearound can be fixed by any of welding, bonding, heat sealing, molding, interference fit, and cable tie fixing.

[0074] The embodiment of the present application does not impose any specific restrictions on the connection method between the third connecting portion 1332 and the dust cover, and can be selected according to actual application conditions to achieve sealing and fixation.

[0075] In summary, reference Figure 2 The dust cover 130 of the embodiment of the present application changes the traditional pleats into a second deformation segment 1321. During the compression or extension process of the air spring 100, the first spacing d between the second deformation segment 1321 and the first deformation segment 121 of the bladder skin 120 remains unchanged or changes slightly, so that the sealed cavity 160 formed between the first deformation segment 121, the second deformation segment 1321, the bladder skin guide tube 140, and the dust cover guide tube 133 will not produce a large volume change, thereby eliminating the need to add an air intake and exhaust structure. Based on this, in actual application, water vapor, dust, and sand will not enter the air spring 100 through the air intake and exhaust structure, achieving waterproof and dustproof properties, thereby effectively reducing the probability of wear of the air spring 100 and increasing the service life of the air spring 100. At the same time, it also effectively reduces the noise problem caused by the air intake and exhaust structure. In addition, compared with the dust cover with a traditional pleated structure, the dust cover 130 of the embodiment of the present application occupies less space.

[0076] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An air spring, characterized in that: include: A piston extending in a first direction, the piston comprising a first portion and a second portion connected to each other; A bladder skin guide tube and a dust cover guide tube are connected, a bladder skin is connected between the bladder skin guide tube and the first part, the bladder skin has a first deformation section, and a dust cover is provided between the dust cover guide tube and the second part; The dust cover comprises: a third portion, a fourth portion and a second deformation section, wherein: The third portion surrounds the second portion and is in close contact with at least a portion of the outer surface of the second portion; The fourth portion is spaced apart along the second direction and surrounds the third portion, and the fourth portion is connected to the dust cover guide tube; the second deformation section is connected between the third portion and the fourth portion; The first deformation segment, the second deformation segment, the bladder skin guide tube, and the dust cover guide tube jointly define a sealed cavity. Along the first direction, the second deformation segment and the first deformation segment are spaced apart and are used for synchronous movement.

2. The air spring according to claim 1, wherein: The second deformation section has an arc-shaped structure.

3. The air spring according to claim 1, wherein: The third portion, the fourth portion and the second deformation section are integrally formed.

4. The air spring according to claim 1, wherein: in: The bladder skin guide tube is arranged around the first deformation section and at least a portion of the first part, and the end of the bladder skin guide tube is further provided with a first connecting portion; The dust cover guide tube is provided with a second connecting portion and a third connecting portion, the second connecting portion is connected to the first connecting portion, and the third connecting portion is connected to the fourth portion.

5. The air spring according to claim 4, characterized in that The first connecting portion includes a locking boss, and the second connecting portion includes a locking groove. The locking boss and the locking groove extend along a third direction respectively and are matched and connected to each other; the third direction is arranged around the first direction.

6. The air spring according to claim 4, characterized in that The third connecting portion includes a connecting boss, and an end of the fourth portion away from the second deformation section is used to be connected to the connecting boss.

7. The air spring according to claim 6, characterized in that The connecting boss and the fourth part are fixed by any one of welding, bonding, heat sealing, compression molding, interference fit, and cable tie fixing.

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

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