Air spring, air suspension system, and vehicle

Abstract

This disclosure relates to an air spring, an air suspension system, and a vehicle. The air spring includes a bladder and an assembly component. The sleeve end of the bladder is fitted onto the outer periphery of the assembly end of the assembly component, and the bladder is made of rubber. A sealing groove is provided on the outer periphery of the assembly end, and a sealing ring, also made of rubber, is disposed within the sealing groove. The lower limit of the glass transition temperature of the sealing ring material is lower than the lower limit of the glass transition temperature of the bladder material. Through the above structural design, this disclosure utilizes the sealing ring to enhance the sealing performance between the bladder and the assembly component. Furthermore, because the lower limit of the glass transition temperature of the sealing ring material is lower, the sealing ring has a stronger ability to resist low-temperature environments than the bladder. When the bladder undergoes a glass transition due to the low temperature environment below the lower limit of the glass transition temperature, the sealing ring can still maintain the elasticity and plasticity of the rubber material, improving the airtightness of the air spring in low-temperature environments.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle and component technology, and in particular to an air spring, an air suspension system and a vehicle. Background Technology

[0002] Air springs are the core component of air suspension systems, with the spring sheath connecting to components such as the air chamber and piston. However, existing air springs use neoprene (CR) spring sheaths, which have a relatively high lower limit of glass transition temperature, such as -30°C. This makes the spring sheaths prone to sealing failure and air leakage in cold environments when the ambient temperature is below the lower limit of the glass transition temperature, thus affecting the application range of air springs. Summary of the Invention

[0003] To overcome the problems existing in the related technologies, this disclosure provides an air spring, an air suspension system, and a vehicle.

[0004] According to a first aspect of the present disclosure, an air spring is provided, which includes a bladder and an assembly member; the sleeve end of the bladder is sleeved on the outer periphery of the assembly end of the assembly member, and the bladder is made of rubber; wherein, a sealing groove is provided on the outer peripheral surface of the assembly end, and a sealing ring is provided in the sealing groove, the sealing ring being made of rubber; the lower limit of the glass transition temperature of the sealing ring is lower than the lower limit of the glass transition temperature of the bladder.

[0005] In some exemplary embodiments of this disclosure, the sealing groove is located at the midpoint of the overlapping area between the sleeve end and the assembly end along the axial direction of the air spring.

[0006] In some exemplary embodiments of this disclosure, the outer periphery of the assembly end is provided with a pressure-through protrusion structure, which contacts the inner periphery of the sleeve end of the bladder.

[0007] In some exemplary embodiments of this disclosure, a plurality of pressure-feeding protrusions are provided on the outer periphery of the assembly end, and the plurality of pressure-feeding protrusions are arranged along the axial direction of the air spring; wherein the sealing groove is located between two adjacent pressure-feeding protrusions.

[0008] In some exemplary embodiments of this disclosure, the outer peripheral surface of the assembly end is provided with at least two sealing grooves, the at least two sealing grooves are arranged at intervals along the axial direction of the air spring, and a sealing ring is provided in each of the at least two sealing grooves.

[0009] In some exemplary embodiments of this disclosure, the air spring further includes a fastening ring disposed on the outer periphery of the sleeve end of the bladder, for fastening the sleeve end of the bladder to the assembly end.

[0010] In some exemplary embodiments of this disclosure, the fastening ring is arranged to overlap with the sealing ring.

[0011] In some exemplary embodiments of this disclosure, the air spring is used in a corresponding vehicle front axle arrangement; wherein: the mounting component is an upper air chamber, the upper air chamber is located above the bladder, the lower end of the upper air chamber is the mounting end, and the upper end of the bladder is the sleeve end; and / or, the mounting component is a first piston, the first piston is located below the bladder, the upper end of the first piston is the mounting end, and the lower end of the bladder is the sleeve end.

[0012] In some exemplary embodiments of this disclosure, the air spring is characterized in that it is used in relation to a vehicle rear axle arrangement; wherein: the mounting component is a second piston, the second piston is located above the bladder, the lower end of the second piston is the mounting end, and the upper end of the bladder is the sleeve end; and / or, the mounting component is a lower base, the lower base is located below the bladder, the upper end of the lower base is the mounting end, and the lower end of the bladder is the sleeve end.

[0013] In some exemplary embodiments of this disclosure, the bladder is made of neoprene rubber and the sealing ring is made of EPDM rubber.

[0014] According to a second aspect of the present disclosure, an air suspension system is provided, wherein the air suspension system includes the air springs proposed in the present disclosure and described in the above embodiments.

[0015] According to a third aspect of the present disclosure, a vehicle is provided, wherein the vehicle includes the air suspension system proposed in the present disclosure and described in the above embodiments.

[0016] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: The air spring proposed in this disclosure includes a bladder and an assembly component; the sleeve end of the bladder is sleeved on the outer periphery of the assembly end of the assembly component, and the bladder is made of rubber; a sealing groove is provided on the outer peripheral surface of the assembly end, and a sealing ring is provided in the sealing groove, the sealing ring being made of rubber; the lower limit of the glass transition temperature of the sealing ring material is lower than the lower limit of the glass transition temperature of the bladder material. Through the above structural design, this disclosure utilizes the sealing ring to enhance the sealing performance between the bladder and the assembly component. Furthermore, because the lower limit of the glass transition temperature of the sealing ring material is even lower, the sealing ring has a stronger ability to resist low-temperature environments than the bladder. When the bladder undergoes a glass transition due to the low temperature environment being below the lower limit of the glass transition temperature, the sealing ring can still maintain the elasticity and plasticity of the rubber material, improving the airtightness of the air spring in low-temperature environments.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] Figure 1 This is a schematic diagram of the structure of an air spring according to some exemplary embodiments of the present disclosure; Figure 2 yes Figure 1 A top view of the air spring is shown. Figure 3 It is along Figure 2 A sectional view of line AA in the diagram; Figure 4 yes Figure 3 An enlarged view of part B in the image; Figure 5 yes Figure 1 A partial enlarged view of the upper air chamber of the air spring is shown; Figure 6 yes Figure 5 A diagram showing the seal after it has been removed.

[0020] Explanation of reference numerals in the attached figures: 100. Bud skin; 110. Socket end; 200. Assembled components; 201. Upper air chamber; 210. Assembly end; 211. Sealing groove; 212. Sealing ring; 213. Pressure-bearing protrusion structure; 300. Snap ring. Detailed Implementation

[0021] Some embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0022] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0023] Reference Figure 1 The diagram illustrates a typical air spring structure. In this exemplary embodiment, the air spring described herein is exemplified by an air spring arranged on the front axle of a vehicle within an air suspension system. It will be readily understood by those skilled in the art that various modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below to apply the relevant designs of this disclosure to other types of air springs, and these changes remain within the scope of the principles of the air springs proposed in this disclosure.

[0024] like Figure 1 As shown, in one embodiment of this disclosure, the air spring proposed in this disclosure includes a bladder 100 and an assembly component 200 (e.g., Figure 3 The upper air chamber 201 shown Figure 4 (The first piston is shown). Reference fitting. Figures 2 to 6 , Figure 2 The image shows a top view of an air spring. Figure 3 The middle section represents the direction along Figure 2 A sectional view of line AA in the diagram; Figure 4 China representatively shows Figure 3 An enlarged view of part B in the image; Figure 5 The image shows a representative enlarged view of a portion of the upper air chamber; Figure 6 China representatively shows Figure 5 A schematic diagram after removing the sealing ring. The following, in conjunction with the above-mentioned figures, will provide a detailed description of the structure, connection method, and functional relationship of the main components of the air spring disclosed in this disclosure.

[0025] like Figures 1 to 6As shown, in one embodiment of this disclosure, the sleeve end 110 of the bladder 100 is sleeved on the outer periphery of the assembly end 210 of the assembly member 200, and the bladder 100 is made of rubber. A sealing groove 211 is provided on the outer peripheral surface of the assembly end 210, and a sealing ring 212 is provided within the sealing groove 211, and the sealing ring 212 is also made of rubber. The lower limit of the glass transition temperature of the sealing ring 212 is lower than the lower limit of the glass transition temperature of the bladder 100. In other words, in a low-temperature environment, when the ambient temperature reaches the lower limit of the glass transition temperature of the bladder 100, the bladder 100 undergoes a glass transition, but this temperature does not exceed the range of the glass transition temperature of the sealing ring 212, and the sealing ring 212 retains the characteristics of rubber. Through the above structural design, this disclosure utilizes the sealing ring 212 to enhance the sealing performance between the bladder 100 and the assembly member 200. Based on this, since the lower limit of the glass transition temperature of the sealing ring 212 material is lower, the sealing ring 212 can have a stronger ability to resist low temperature environment than the bladder 100. When the bladder 100 undergoes glass transition due to the low temperature environment being lower than the lower limit of the glass transition temperature, the sealing ring 212 can still maintain the elasticity and plasticity of the rubber material, thereby improving the airtight performance of the air spring in low temperature environment.

[0026] like Figures 4 to 6 As shown, in one embodiment of this disclosure, along the axial direction of the air spring, the sealing groove 211 can be located at the midpoint of the overlapping area between the sleeve end 110 and the assembly end 210. Further, when the sleeve end 110 is fastened to the assembly end 210 via the fastening ring 300, the sealing groove 211 can be located at the midpoint of the area between the sleeve end 110 and the assembly end 210 fastened by the fastening ring 300. Through the above structural design, this disclosure can improve the rationality of the setting of the sealing groove 211, i.e., the sealing ring 212, and ensure a good sealing effect. In other embodiments of this disclosure, the sealing groove 211 can also be set at other positions on the assembly end 210, and is not limited to this embodiment.

[0027] like Figure 5 and Figure 6 As shown, in one embodiment of this disclosure, the outer periphery of the assembly end 210 may be provided with a pressure-permeable protrusion structure 213, such as, but not limited to, the tooth-shaped structure shown in the figures. The pressure-permeable protrusion structure 213 contacts the inner periphery of the sleeve end 110 of the bladder 100. Through the above structural design, this disclosure utilizes the pressure-permeable protrusion structure 213 to increase the contact area between the assembly end 210 and the sleeve end 110, improve airtightness, and at the same time increase friction to achieve a backlash prevention function.

[0028] like Figure 5 and Figure 6As shown, based on the structural design of the assembly end 210 having a pressure-feeding protrusion structure 213 on its outer periphery, in one embodiment of this disclosure, the assembly end 210 may have multiple pressure-feeding protrusion structures 213 arranged along the axial direction of the air spring. Furthermore, a sealing groove 211 may be located between two adjacent pressure-feeding protrusion structures 213. Further, the sealing groove 211 may be located between two adjacent pressure-feeding protrusion structures 213 positioned at the midpoint in the axial direction.

[0029] like Figures 4 to 6 As shown, in one embodiment of this disclosure, a sealing groove 211 is provided on the outer peripheral surface of the assembly end 210. Through the above structural design, this disclosure has a simple structure and is easy to assemble. In other embodiments of this disclosure, at least two sealing grooves 211 may also be provided on the outer peripheral surface of the assembly end 210, with the at least two sealing grooves 211 arranged at intervals along the axial direction of the air spring, and sealing rings 212 respectively provided in the at least two sealing grooves 211.

[0030] In one embodiment of this disclosure, the sealing groove 211 can be manufactured by injection molding or machining from the assembly component 200, and the shape, size, etc. of the sealing groove 211 can be designed and matched with relevant standards (such as GB / T3452.3 or other national standards, industry standards, etc.) or non-standards, and a matching sealing ring 212 is selected simultaneously.

[0031] like Figure 4 As shown, in one embodiment of this disclosure, the cross-section of the sealing ring 212 can be circular. In other embodiments of this disclosure, the cross-section of the sealing ring 212 can also be other shapes, such as rectangular, elliptical, etc., and is not limited to this embodiment.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment of this disclosure, the air spring may further include a retaining ring 300, which is disposed on the outer periphery of the sleeve end 110 of the bladder 100. The retaining ring 300 is used to fasten the sleeve end 110 of the bladder 100 to the assembly end 210. Through the above structural design, this disclosure can improve the assembly strength between the bladder 100 and the assembly component 200.

[0033] like Figure 4 As shown, based on the structural design of the air spring including the retaining ring 300, in one embodiment of this disclosure, the retaining ring 300 and the sealing ring 212 can be arranged overlappingly, that is, the sealing groove 211 is provided in the area covered by the retaining ring 300 at the assembly end 210. Through the above structural design, this disclosure can further improve the sealing effect between the bladder 100 and the assembly component 200.

[0034] like Figures 1 to 3 As shown, in one embodiment of this disclosure, the air spring is described using the front air spring in an air suspension system as an example. The front air spring is the air spring arranged in the air suspension system corresponding to the front axle of the vehicle. Based on this, the mounting component 200 can be the upper air chamber 201 of the front air spring. The upper air chamber 201 is located above the bladder 100, and the lower end of the upper air chamber 201 is the mounting end 210, while the upper end of the bladder 100 is the sleeve end 110.

[0035] Taking the upper air chamber 201 as an example of the assembly component 200, the assembly process of the upper chamber and the bladder skin 100 is roughly as follows: the sealing ring 212 is placed in the sealing groove 211 of the assembly end 210 of the upper air chamber 201, and then the sleeve end 110 of the bladder skin 100 is placed on the outer periphery of the assembly end 210, and the sleeve end 110 is fastened to the assembly end 210 using the fastening ring 300, thereby realizing the assembly of the bladder skin 100 and the upper air chamber 201.

[0036] In one embodiment of this disclosure, taking the air spring as a front air spring as an example, the assembly component 200 can also be the first piston of the front air spring. The first piston is located below the bladder 100, and the upper end of the first piston is the assembly end 210, and the lower end of the bladder 100 is the sleeve end 110.

[0037] In another embodiment of this disclosure, the air spring proposed in this disclosure can also be a rear air spring in an air suspension system, where a rear air spring is an air spring arranged corresponding to the rear axle of a vehicle in an air suspension system. Based on this, the mounting component 200 can be a lower base of the rear air spring, located below the spring skin 100, with its upper end being the mounting end 210 and the lower end of the spring skin 100 being the sleeve end 110. Furthermore, the mounting component 200 can also be a second piston of the rear air spring, located above the spring skin 100, with its lower end being the mounting end 210 and the upper end of the spring skin 100 being the sleeve end 110.

[0038] As mentioned above, since the upper air chamber 201, the first piston, the second piston and other assembly components 200 are usually made of nylon, the strength of which is lower than that of aluminum, steel and other materials, the plastic deformation caused by the fastening ring 300 when fastening will further affect the airtightness of the bladder 100. This disclosure uses the sealing ring 212 to make up for the lack of airtightness in the above design and ensure good airtightness between the bladder 100 and the nylon assembly components 200.

[0039] In one embodiment of this disclosure, the bladder 100 is made of neoprene rubber, and the sealing ring 212 is made of ethylene propylene diene monomer (EPDM) rubber. Neoprene rubber has a glass transition temperature range of -30°C to 35°C. In low-temperature winter environments, such as in Heihe and Mohe in my country where extreme temperatures drop below -35°C, the neoprene bladder 100 is prone to glass transition when the ambient temperature exceeds the lower limit of its glass transition temperature range. This disclosure uses an EPDM rubber sealing ring 212, which has a lower lower limit of its glass transition temperature range, ensuring a good seal in low-temperature environments and preventing leaks due to seal failure.

[0040] It should be noted that the air springs shown in the accompanying drawings and described in this specification are merely a few examples among many air springs capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the air springs shown in the accompanying drawings or described in this specification.

[0041] Based on the above detailed description of several exemplary embodiments of the air springs proposed in this disclosure, an exemplary embodiment of the air suspension system proposed in this disclosure will be described below.

[0042] In one embodiment of this disclosure, the air suspension system proposed in this disclosure includes the air spring proposed in this disclosure and described in detail in the above embodiments.

[0043] It should be noted that the air suspension systems shown in the accompanying drawings and described in this specification are merely a few examples of many air suspension systems capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the air suspension systems shown in the accompanying drawings or described in this specification.

[0044] Based on the above detailed description of an exemplary embodiment of the air suspension system proposed in this disclosure, an exemplary embodiment of the vehicle proposed in this disclosure will be described below.

[0045] In one embodiment of this disclosure, the vehicle proposed in this disclosure includes the air suspension system proposed in this disclosure and described in detail in the above embodiments.

[0046] In one embodiment of this disclosure, the vehicle proposed in this disclosure can be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicles. The vehicle can be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0047] It should be noted that the vehicles shown in the accompanying drawings and described in this specification are merely a few examples among many vehicles capable of employing the principles of this disclosure. It should be clearly understood that the principles of this disclosure are by no means limited to any detail or component of the vehicles shown in the accompanying drawings or described in this specification.

[0048] In summary, the air spring disclosed herein includes a bladder 100 and an assembly component 200. The sleeve end 110 of the bladder 100 is fitted onto the outer periphery of the assembly end 210 of the assembly component 200, and the bladder 100 is made of rubber. A sealing groove 211 is provided on the outer peripheral surface of the assembly end 210, and a sealing ring 212, also made of rubber, is disposed within the sealing groove 211. The lower limit of the glass transition temperature of the sealing ring 212 is lower than the lower limit of the glass transition temperature of the bladder 100. Through the above structural design, this disclosure utilizes the sealing ring 212 to enhance the sealing performance between the bladder 100 and the assembly component 200. Based on this, since the lower limit of the glass transition temperature of the sealing ring 212 material is lower, the sealing ring 212 can have a stronger ability to resist low temperature environment than the bladder 100. When the bladder 100 undergoes glass transition due to the low temperature environment being lower than the lower limit of the glass transition temperature, the sealing ring 212 can still maintain the elasticity and plasticity of the rubber material, thereby improving the airtight performance of the air spring in low temperature environment.

[0049] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0050] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0051] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0052] It should be understood that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., used in the embodiments of this disclosure 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 connection that allows communication between them; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein according to the specific circumstances.

[0053] Although terms such as “first” and “second” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. 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 indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0055] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An air spring, characterized by, The assembly includes a shell (100) and an assembly component (200); the sleeve end (110) of the shell (100) is sleeved on the outer periphery of the assembly end (210) of the assembly component (200), and the shell (100) is made of rubber; wherein, a sealing groove (211) is provided on the outer periphery of the assembly end (210), and a sealing ring (212) is provided in the sealing groove (211), and the sealing ring (212) is made of rubber; the lower limit of the glass transition temperature of the material of the sealing ring (212) is lower than the lower limit of the glass transition temperature of the material of the shell (100).

2. The air spring according to claim 1, characterized in that, Along the axial direction of the air spring, the sealing groove (211) is located at the midpoint of the overlapping area between the sleeve end (110) and the assembly end (210).

3. The air spring according to claim 1, characterized in that, The outer periphery of the assembly end (210) is provided with a pressure protrusion structure (213), which contacts the inner periphery of the sleeve end (110) of the bladder skin (100).

4. The air spring according to claim 3, characterized in that, The outer periphery of the assembly end (210) is provided with a plurality of pressure-passing protrusions (213), which are arranged along the axial direction of the air spring; wherein the sealing groove (211) is located between two adjacent pressure-passing protrusions (213).

5. The air spring according to claim 1, characterized in that, The outer peripheral surface of the assembly end (210) is provided with at least two sealing grooves (211), the at least two sealing grooves (211) are arranged at intervals along the axial direction of the air spring, and sealing rings (212) are respectively provided in the at least two sealing grooves (211).

6. The air spring according to claim 1, characterized in that, The air spring also includes a fastening ring (300), which is disposed on the outer periphery of the sleeve end (110) of the bladder (100) for fastening the sleeve end (110) of the bladder (100) to the assembly end (210).

7. The air spring according to claim 6, characterized in that, The fastening ring (300) and the sealing ring (212) are arranged overlapping each other.

8. The air spring according to claim 1, characterized in that, The air spring is used in connection with the front axle of the vehicle; wherein: The assembly component (200) is an upper air chamber (201), which is located above the bladder skin (100). The lower end of the upper air chamber (201) is the assembly end (210), and the upper end of the bladder skin (100) is the sleeve end (110); and / or The assembly component (200) is a first piston, which is located below the bladder (100). The upper end of the first piston is the assembly end (210), and the lower end of the bladder (100) is the sleeve end (110).

9. The air spring according to claim 1, characterized in that, The air spring is used in the arrangement of the rear axle of the vehicle; wherein: The assembly component (200) is a second piston, which is located above the bladder (100). The lower end of the second piston is the assembly end (210), and the upper end of the bladder (100) is the sleeve end (110); and / or The assembly component (200) is a lower base, which is located below the skin (100). The upper end of the lower base is the assembly end (210), and the lower end of the skin (100) is the sleeve end (110).

10. The air spring according to claim 1, characterized in that, The bladder (100) is made of neoprene rubber, and the sealing ring (212) is made of EPDM rubber.

11. An air suspension system, characterized in that, Includes the air spring as described in any one of claims 1 to 10.

12. A vehicle, characterized in that, Includes the air suspension system as described in claim 11.

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