Modularized double-cavity air storage tank, air suspension system and vehicle

Abstract

The utility model relates to the technical field of automobile parts, in particular to a modularized double-cavity air storage tank, an air suspension system and a vehicle, which comprise two barrels, and the head end of one barrel is connected with the tail end of the other barrel; at least one of the head end and the tail end of the barrel is provided with an opening; when one end is provided with an opening, the other end is provided with a built-in end cover which is integrally formed with the cylinder body; the adjacent ends of the two cylinder bodies are separated through an external connection end cover or a relay end cover or a built-in end cover; external connection end covers or built-in end covers are arranged at the opposite ends of the two barrel bodies; and gas storage cavities are respectively formed in the two cylinders. According to the utility model, one end part of the two cylinder bodies is shared, when gas leakage occurs at the shared end part, internal leakage occurs, that is, the gas only leaks from one of the high-pressure cavity and the low-pressure cavity to the other cavity, at the moment, the total gas volume of the system is still not reduced, and the system does not need to supplement gas from the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a modular double-cavity air storage tank, an air suspension system and a vehicle. Background Art

[0002] The air suspension system adjusts the vehicle's chassis height, providing comfort or increased maneuverability. The air tank is a key component of the air suspension system. During daily driving, sensors and the on-board computer control the air compressor and exhaust valve, automatically compressing or extending the air suspension and discharging the air from the tank, depending on road conditions.

[0003] Existing air suspension systems typically use two air tanks: one serving as a high-pressure tank and the other as a low-pressure tank. To inflate the air spring, a pressurizing mechanism, such as an air pump, transfers gas from the low-pressure tank to the high-pressure tank, raising the pressure inside. The inflator valve is then opened, allowing the gas in the high-pressure tank to flow into the air spring. To deflate the air spring, the vent valve is opened, allowing the gas in the air spring to be stored in the low-pressure tank.

[0004] The two gas storage tanks equipped in the existing air suspension system are independent of each other, that is, the two gas tanks that are not connected to each other serve as the low-pressure tank and the high-pressure tank respectively.

[0005] If a gas leak develops in the end caps of existing gas cylinders, the system gas will leak into the environment, causing a decrease in the system gas volume. The system then needs to be replenished with gas from the outside, which requires drying and filtering the gas, increasing costs. Furthermore, if a gas cylinder is damaged in any way, the entire cylinder must be scrapped. Utility Model Content

[0006] In order to solve the above problems, the purpose of the present utility model is to provide a modular dual-chamber air storage tank, an air suspension system, and a vehicle.

[0007] The technical solution provided by this utility model is:

[0008] In the first aspect, a modular double-chamber gas storage tank is provided.

[0009] It comprises two cylinders, wherein the head end of one cylinder is connected to the tail end of the other cylinder;

[0010] At least one of the first and second ends of the cylinder is provided with an opening; when one end is provided with an opening, the other end is provided with an end cap integrally formed with the cylinder;

[0011] The adjacent ends of the two cylinders are blocked by external end covers, relay end covers or self-contained end covers;

[0012] External end covers or self-contained end covers are provided at the opposite ends of the two cylinders;

[0013] Air storage chambers are formed inside the two cylinders respectively.

[0014] As an optional technical solution of the first aspect, the external end cover is hollow hemispherical; the inner diameter of the circular end surface of the external end cover is roughly equal to the inner diameter of the front and rear ends of the cylinder.

[0015] As an optional technical solution of the first aspect, the relay end cover is cylindrical; the inner wall of the relay end cover is provided with a partition, and the partition is sealed with the inner wall.

[0016] Optionally, the outer diameters of the front and rear ends of the relay end cover are roughly equal to the inner diameters of the front and rear ends of the cylinder; the adjacent ends of the two cylinders are both provided with openings; the adjacent ends of the two cylinders are respectively sleeved on the outside of the relay end cover and fixedly connected to the outer wall of the relay end cover.

[0017] Optionally, the inner diameters of the front and rear ends of the relay end cover are roughly equal to the outer diameters of the front and rear ends of the cylinder; the adjacent ends of the two cylinders are each provided with an opening; the adjacent ends of the two cylinders are respectively inserted into the relay end cover and fixedly connected to the inner walls of the relay end cover on both sides of the partition.

[0018] Optionally, the opposite ends of the two cylinders are both provided with self-contained end covers; or, one of the opposite ends of the two cylinders is provided with a self-contained end cover and the other is provided with an external end cover; or, the opposite ends of the two cylinders are both provided with external end covers.

[0019] As an optional technical solution of the first aspect, one of the adjacent ends of the two cylinders is provided with an opening, and the other is provided with a self-contained end cover; one of the opposite ends of the two cylinders is provided with a self-contained end cover, and the other is provided with an external end cover; or, both opposite ends of the two cylinders are provided with external end covers.

[0020] As an optional technical solution of the first aspect, the adjacent ends of the two cylinders are provided with openings, and one of the cylinders is provided with an external end cover at the adjacent end; the opposite ends of the two cylinders are provided with self-contained end covers; or, one of the opposite ends of the two cylinders is provided with its own end cover, and the other is provided with an external end cover; or, the opposite ends of the two cylinders are provided with external end covers.

[0021] In the second aspect, an air suspension system includes the modular dual-chamber air storage tank of the first aspect or any optional technical solution of the first aspect; the air storage chambers formed inside the two cylinders are respectively a high-pressure chamber and a low-pressure chamber; an air nozzle is installed on the cylinder; the air nozzle is connected to the air spring through an air path; the high-pressure chamber and the low-pressure chamber are also connected by a pressurizing mechanism, and the pressurizing mechanism is used to pump the gas in the low-pressure chamber to the high-pressure chamber.

[0022] According to a third aspect, a vehicle comprises the air suspension system according to the second aspect.

[0023] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0024] The utility model uses two cylinders, and the head end of one cylinder is connected to the tail end of the other cylinder, and the adjacent ends of the two cylinders are blocked by one of the self-contained end cover, the external end cover, and the relay end cover. In this way, one end of the two cylinders is shared. When gas leaks from this shared end, it is an "internal leakage", that is, the gas will only leak from one cavity of the high and low pressure cavity to the other cavity. At this time, the total gas volume of the system will still not decrease, and the system does not need to be replenished with gas from the outside.

[0025] Furthermore, the air tank used in the air suspension system of the present invention is formed by connecting two cylinders end to end, eliminating the various components required when using two separate cylinders and reducing overall costs. Furthermore, the ends of the two cylinders of the present invention can be equipped with various end caps. This allows only the corresponding portion of the cylinder to be scrapped if damaged, reducing maintenance costs. Furthermore, the long, strip-shaped air tank formed by connecting the two cylinders end to end is easier to arrange and occupies relatively little space, facilitating optimized structural layout and meeting the requirements of miniaturization, weight reduction, and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of an external end cover in one embodiment of the present application;

[0027] Figure 2 This is a cross-sectional view of a relay end cover in one embodiment of the present application;

[0028] Figure 3 This is a cross-sectional view of an embodiment of the present application in which one end of the cylinder is provided with a self-contained end cover;

[0029] Figure 4 This is a cross-sectional view of an embodiment of the present application in which both ends of the cylinder are provided with openings;

[0030] Figure 5 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the inner wall of the relay end cover and the opposite ends are both provided with their own end covers;

[0031] Figure 6 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the inner wall of the relay end cover and the opposite ends are both provided with external end covers;

[0032] Figure 7 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the inner wall of the relay end cover and one of the opposite ends is provided with an external end cover;

[0033] Figure 8 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the outer wall of the relay end cover and the opposite ends are both provided with their own end covers;

[0034] Figure 9 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the outer wall of the relay end cover and the opposite ends are both provided with external end covers;

[0035] Figure 10 This is a cross-sectional view of an embodiment of the present application in which the adjacent ends of two cylinders are connected to the outer wall of the relay end cover and one of the opposite ends is provided with an external connection end cover;

[0036] Figure 11 This is a cross-sectional view of an embodiment of the present application in which one of the adjacent ends of the two cylinders is provided with a self-contained end cover and one of the opposite ends is provided with an external end cover;

[0037] Figure 12 This is a cross-sectional view of one embodiment of the present application in which one of the adjacent ends of the two cylinders is provided with a self-contained end cap and the opposite ends are both provided with an external end cap;

[0038] Figure 13 This is a cross-sectional view of one embodiment of the present application in which one of the adjacent ends of two cylinders is provided with an external end cover and the opposite ends are both provided with self-contained end covers;

[0039] Figure 14 This is a cross-sectional view of one embodiment of the present application in which one of the adjacent ends of the two cylinders is provided with an external end cover and one of the opposite ends is provided with a self-contained end cover;

[0040] Figure 15 This is a cross-sectional view of an embodiment of the present application in which one of the adjacent ends of two cylinders is provided with an external end cover and both the opposite ends are provided with an external end cover.

[0041] Explanation of the numbers in the schematic diagram:

[0042] External end cover 101;

[0043] Relay end cap 200;

[0044] Partition 201;

[0045] Cylinder 301;

[0046] opening 302;

[0047] Comes with end cap 303;

[0048] Air nozzle 401. DETAILED DESCRIPTION

[0049] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0050] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical significance in defining the conditions under which the application can be implemented. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the application, should still fall within the scope of the technical content disclosed by the application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the specification are only for the convenience of clear description, and are not used to limit the scope of implementation. The change or adjustment of the relative relationship is also considered as the implementation of the application without substantially changing the technical content.

[0051] The application provides a modular double-cavity gas tank, comprising two cylinders 301, when the two cylinders 301 are connected, the leading end of one of the cylinders 301 is connected with the trailing end of the other cylinder 301, thereby forming a strip-shaped arrangement structure. The two cylinders 301 share one end, and various components required when using two separate gas tanks are omitted, thereby reducing the overall cost.

[0052] At least one of the leading end and the trailing end of the cylinder 301 is provided with an opening 302. The structure of the cylinder 301 can be as shown in Figure 4 At this time, both ends of the cylinder 301 are provided with openings, and in this scheme, the cylinder 301 can be made of a steel pipe or a rolled steel.

[0053] The structure of the cylinder 301 can also be as shown in Figure 3 At this time, one end of the cylinder 301 is provided with an opening 302, and the other end is provided with a self-contained end cover 303 integrally formed with the cylinder 301. In this scheme, the cylinder 301 can be a spinning arc-shaped cylinder.

[0054] The double-cavity gas tank provided by the application is blocked by the outer connecting end cover 101 or the relay end cover 200 or the self-contained end cover 303 at the adjacent ends of the two cylinders 301, that is, the end shared by the two cylinders 301 is made of one of the outer connecting end cover 101, the relay end cover 200 and the self-contained end cover 303. The outer connecting end cover 101 or the self-contained end cover 303 is arranged at the opposite ends of the two cylinders 301. In this way, the interiors of the two cylinders 301 form gas storage cavities respectively. The gas storage cavity formed in the interior of one of the cylinders 301 serves as a high-pressure cavity, and the gas storage cavity formed in the interior of the other cylinder 301 serves as a low-pressure cavity.

[0055] When the shared end of the double-cavity gas tank leaks gas, "internal leakage" occurs, that is, gas only leaks from one cavity to another cavity, at this time, the total gas amount of the system does not decrease, and the system does not need to be supplemented with gas from the outside.

[0056] The dual-chamber gas storage tank proposed in this invention features a modular design, comprising two cylinders 301 and several end caps. This allows for the disposal of only the corresponding portion of the tank if damaged, reducing maintenance costs. Furthermore, the tank, formed by connecting the two cylinders 301 end-to-end, takes up a long, rectangular shape, making it easier to deploy and occupying relatively little space. This facilitates optimized structural layout, meeting the requirements of miniaturization and weight reduction and efficiency gains. Depending on the total amount of gas required by the air suspension system, cylinders 301 of varying specifications can be selected. For example, two cylinders 301 with a total volume of 8L can be used, with a total length of 1108mm and a diameter of 105mm.

[0057] As an optional solution for the structure of the external end cap 101, Figure 1 As shown, the external end cap 101 is hollow hemispherical, which can be a stamping part or a casting part, and will not be described or limited here. Preferably, the shape of the external end cap 101 is similar to the shape of the end cap 303 provided with the cylinder 301. In order to ensure that the connection between the external end cap 101 and the end of the cylinder 301 is smooth and has no obvious bumps, the inner diameter of the circular end face of the external end cap 101 is roughly equal to the inner diameter of the front and rear ends of the cylinder 301. For the method of connecting the external end cap 101 to the cylinder 301, welding is preferably used.

[0058] As an optional solution for the structure of the relay end cover 200, Figure 2 As shown, the relay end cover 200 is cylindrical, and a partition 201 is provided on the inner wall of the relay end cover 200, so that the cross section of the relay end cover 200 is I-shaped. The relay end cover 200 can be a stamped part or a casting part, which will not be described in detail or limited here.

[0059] It should be noted that the partition 201 needs to be sealed against the inner wall, i.e., the partition 201 divides the inner cavity of the relay end cap 200 into two sections, with the inner cavities at both ends completely blocked by the partition 201. When the adjacent ends of two cylinders 301 are connected using the relay end cap 200, the partition 201 can separate the inner cavities of the two cylinders 301. In this case, the inner cavities of the two cylinders 301 can be separated into high-pressure and low-pressure chambers, and gas leakage will not occur between the high-pressure and low-pressure chambers.

[0060] For the specific structure of the modular double-chamber gas storage tank, please refer to the following embodiments:

[0061] Example 1

[0062] In this embodiment, if Figure 8 As shown, the outer diameters of the front and rear ends of the relay end cap 200 are approximately equal to the inner diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. During splicing, the adjacent ends of the two cylinders 301 are respectively sleeved onto the outside of the relay end cap 200 and fixedly connected to the outer wall of the relay end cap 200, for example, by welding.

[0063] In this embodiment, the two cylinders 301 are provided with self-end caps 303 at the opposite ends. At this time, the adjacent ends between the two cylinders 301 are connected and separated by the relay end caps 200, and the opposite ends are sealed by the self-end caps 303, thereby forming two air storage chambers.

[0064] Example 2

[0065] In this embodiment, if Figure 10 As shown, the outer diameters of the front and rear ends of the relay end cap 200 are approximately equal to the inner diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. During splicing, the adjacent ends of the two cylinders 301 are respectively sleeved onto the outside of the relay end cap 200 and fixedly connected to the outer wall of the relay end cap 200, for example, by welding.

[0066] In this embodiment, one of the opposing ends of the two cylinders 301 is provided with an internal end cap 303, while the other is provided with an external end cap 101. The external end cap 101 can be fixedly connected to the cylinder 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the intermediate end cap 200, while the opposing ends are sealed by the internal end cap 303 and the external end cap 101, thereby forming two air storage chambers.

[0067] Example 3

[0068] In this embodiment, if Figure 9 As shown, the outer diameters of the front and rear ends of the relay end cap 200 are approximately equal to the inner diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. During splicing, the adjacent ends of the two cylinders 301 are respectively sleeved onto the outside of the relay end cap 200 and fixedly connected to the outer wall of the relay end cap 200, for example, by welding.

[0069] In this embodiment, the two cylinders 301 are each provided with an external end cap 101 at the opposite ends thereof. The external end cap 101 can be fixedly connected to the cylinder 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the intermediate end cap 200, while the opposite ends are sealed by the external end cap 101, thereby forming two air storage chambers.

[0070] Example 4

[0071] In this embodiment, if Figure 5 As shown, the inner diameters of the front and rear ends of the relay end cap 200 are approximately equal to the outer diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. The adjacent ends of the two cylinders 301 are respectively inserted into the relay end cap 200 and fixedly connected to the inner wall of the relay end cap 200 on both sides of the partition 201. For example, welding can be used to secure the cylinders 301 to the relay end cap 200.

[0072] In this embodiment, the two cylinders 301 are provided with self-end caps 303 at the opposite ends. At this time, the adjacent ends of the two cylinders 301 are connected and separated by the relay end caps 200, and the opposite ends are sealed by the self-end caps 303, thereby forming two air storage chambers.

[0073] Example 5

[0074] In this embodiment, if Figure 7 As shown, the inner diameters of the front and rear ends of the relay end cap 200 are approximately equal to the outer diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. The adjacent ends of the two cylinders 301 are respectively inserted into the relay end cap 200 and fixedly connected to the inner wall of the relay end cap 200 on both sides of the partition 201. For example, welding can be used to secure the cylinders 301 to the relay end cap 200.

[0075] In this embodiment, one of the opposing ends of the two cylinders 301 is provided with an internal end cap 303, while the other is provided with an external end cap 101. The external end cap 101 can be fixedly connected to the cylinder 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the intermediate end cap 200, while the opposing ends are sealed by the external end cap 101 and the internal end cap 303, thereby forming two air storage chambers.

[0076] Example 6

[0077] In this embodiment, if Figure 6 As shown, the inner diameters of the front and rear ends of the relay end cap 200 are approximately equal to the outer diameters of the front and rear ends of the cylinder 301. The adjacent ends of the two cylinders 301 are each provided with an opening 302. The adjacent ends of the two cylinders 301 are respectively inserted into the relay end cap 200 and fixedly connected to the inner wall of the relay end cap 200 on both sides of the partition 201. For example, welding can be used to secure the cylinders 301 to the relay end cap 200.

[0078] In this embodiment, the two cylinders 301 are each provided with an external end cap 101 at the opposite ends thereof. The external end cap 101 can be fixedly connected to the cylinder 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the intermediate end cap 200, while the opposite ends are sealed by the external end cap 101, thereby forming two air storage chambers.

[0079] Example 7

[0080] In this embodiment, if Figure 11 As shown, one of the adjacent ends of the two cylinders 301 is provided with an opening 302, and the other is provided with a self-contained end cover 303. The adjacent ends of the two cylinders 301 can be fixedly connected by welding, so that the adjacent ends of the two cylinders 301 are blocked by the self-contained end cover 303.

[0081] In this embodiment, one of the two opposing ends of the two cylinders 301 is provided with an internal end cap 303, while the other is provided with an external end cap 101. The external end cap 101 can be fixedly connected to the cylinders 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the internal end cap 303, while the opposing ends are sealed by the external end cap 101 and the internal end cap 303, thereby forming two air storage chambers.

[0082] Example 8

[0083] In this embodiment, if Figure 12 As shown, one of the adjacent ends of the two cylinders 301 is provided with an opening 302, and the other is provided with a self-contained end cover 303. The adjacent ends of the two cylinders 301 can be fixedly connected by welding, so that the adjacent ends of the two cylinders 301 are blocked by the self-contained end cover 303.

[0084] In this embodiment, the two cylinders 301 are each provided with an external end cap 101 at the opposite ends thereof. The external end cap 101 can be fixedly connected to the cylinder 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the self-contained end cap 303, while the opposite ends are sealed by the external end cap 101, thereby forming two air storage chambers.

[0085] Embodiment 9

[0086] In this embodiment, if Figure 13 As shown, the adjacent ends of the two cylinders 301 are each provided with an opening 302, and one of the cylinders 301 is provided with an external end cap 101 at the adjacent end. The adjacent ends of the two cylinders 301 can be fixedly connected by welding, so that the adjacent ends of the two cylinders 301 are blocked by the external end cap 101.

[0087] In this embodiment, the two cylinders 301 are provided with self-contained end caps 303 at the opposite ends. At this time, the adjacent ends of the two cylinders 301 are connected and separated by the external end caps 101, and the opposite ends are sealed by the self-contained end caps 303, thereby forming two air storage chambers.

[0088] Example 10

[0089] In this embodiment, if Figure 14 As shown, the adjacent ends of the two cylinders 301 are each provided with an opening 302, and one of the cylinders 301 is provided with an external end cap 101 at the adjacent end. The adjacent ends of the two cylinders 301 can be fixedly connected by welding, so that the adjacent ends of the two cylinders 301 are blocked by the external end cap 101.

[0090] In this embodiment, one of the two opposing ends of the cylinders 301 is provided with an internal end cap 303, while the other is provided with an external end cap 101. The external end cap 101 can be fixedly connected to the cylinders 301 by welding. The adjacent ends of the two cylinders 301 are connected and separated by the external end cap 101, while the opposing ends are sealed by the external end cap 101 and the internal end cap 303, thereby forming two air storage chambers.

[0091] Example 11

[0092] In this embodiment, if Figure 15 As shown, the adjacent ends of the two cylinders 301 are each provided with an opening 302, and one of the cylinders 301 is provided with an external end cap 101 at the adjacent end. The adjacent ends of the two cylinders 301 can be fixedly connected by welding, so that the adjacent ends of the two cylinders 301 are blocked by the external end cap 101.

[0093] In this embodiment, the two cylinders 301 are provided with external end caps 101 at the opposite ends thereof. The external end caps 101 can be fixedly connected to the cylinders 301 by welding. In this case, the adjacent ends of the two cylinders 301 are connected and separated by the external end caps 101, and the opposite ends are sealed by the external end caps 101, thereby forming two air storage chambers.

[0094] The present invention also provides an air suspension system comprising the aforementioned modular dual-chamber air tank. The air storage chambers formed within the two cylinders 301 are respectively a high-pressure chamber and a low-pressure chamber. Through holes are provided in the end caps at opposite ends of the cylinders 301, and air nozzles 401 are installed in the through holes. The air nozzles 401 are connected to the air springs via an air path.

[0095] The high-pressure chamber and the low-pressure chamber are also connected via a pressurizing mechanism, which may be an air pump, and is used to pump the gas in the low-pressure chamber into the high-pressure chamber.

[0096] To inflate the air spring, a pressurizing mechanism, such as an air pump, is used to transfer the gas from the low-pressure chamber to the high-pressure chamber, increasing the pressure inside the high-pressure chamber. The inflation valve is then opened, allowing the gas in the high-pressure chamber to be charged into the air spring. To deflate the air spring, the vent valve is opened, allowing the gas in the air spring to be stored in the low-pressure chamber.

[0097] The utility model also provides a vehicle, which includes the above-mentioned air suspension system.

[0098] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A modular double-chamber gas storage tank, characterized by: It comprises two cylinders (301), wherein the head end of one cylinder (301) is connected to the tail end of the other cylinder (301); At least one of the first and second ends of the cylinder (301) is provided with an opening (302); when one end is provided with an opening (302), the other end is provided with an end cap (303) integrally formed with the cylinder (301); The adjacent ends of the two cylinders (301) are blocked by an external end cover (101) or a relay end cover (200) or a self-contained end cover (303); The opposite ends of the two cylinders (301) are provided with external end covers (101) or self-contained end covers (303); The interiors of the two cylinders (301) respectively form air storage cavities.

2. The modular dual-chamber gas storage tank according to claim 1, characterized in that: The external end cover (101) is in the shape of a hollow hemisphere; The inner diameter of the circular end surface of the external end cover (101) is substantially equal to the inner diameter of the front and rear ends of the cylinder (301).

3. The modular dual-chamber gas storage tank according to claim 1, characterized in that: The relay end cover (200) is cylindrical; The inner wall of the relay end cover (200) is provided with a partition (201), and the partition (201) is sealedly connected to the inner wall.

4. The modular dual-chamber gas storage tank according to claim 3, characterized in that: The outer diameters of the front and rear ends of the relay end cover (200) are substantially equal to the inner diameters of the front and rear ends of the cylinder (301); The adjacent ends of the two cylinders (301) are both provided with openings (302); the adjacent ends of the two cylinders (301) are respectively sleeved on the outside of the relay end cover (200) and fixedly connected to the outer wall of the relay end cover (200).

5. The modular dual-chamber gas storage tank according to claim 3, characterized in that: The inner diameters of the front and rear ends of the relay end cover (200) are substantially equal to the outer diameters of the front and rear ends of the cylinder (301); The adjacent ends of the two cylinders (301) are both provided with openings (302); the adjacent ends of the two cylinders (301) are respectively inserted into the relay end cover (200) and fixedly connected to the inner walls of the relay end cover (200) on both sides of the partition (201).

6. The modular double-chamber gas storage tank according to claim 4 or 5, characterized in that: The two cylinders (301) are both provided with end covers (303) at opposite ends. or, One of the opposite ends of the two cylinders (301) is provided with a self-contained end cover (303), and the other is provided with an external end cover (101); or, External end covers (101) are provided at opposite ends of the two cylinders (301).

7. The modular dual-chamber gas storage tank according to claim 1, characterized in that: One of the adjacent ends of the two cylinders (301) is provided with an opening (302), and the other is provided with a self-contained end cover (303); One of the two cylinders (301) at opposite ends is provided with a self-contained end cover (303), and the other is provided with an external end cover (101); or both of the two cylinders (301) at opposite ends are provided with external end covers (101).

8. The modular dual-chamber gas storage tank according to claim 1, characterized in that: The adjacent ends of the two cylinders (301) are both provided with openings (302), and one of the cylinders (301) is provided with an external end cover (101) at the adjacent end; The opposite ends of the two cylinders (301) are both provided with self-contained end covers (303); or, one of the opposite ends of the two cylinders (301) is provided with a self-contained end cover (303) and the other is provided with an external end cover (101); or, the opposite ends of the two cylinders (301) are both provided with external end covers (101).

9. An air suspension system, characterized in that: comprising a modular double-chamber gas storage tank as claimed in any one of claims 1 to 8; The gas storage chambers formed inside the two cylinders (301) are respectively a high-pressure chamber and a low-pressure chamber; An air nozzle (401) is installed on the cylinder (301); The air nozzle (401) is connected to the air spring via an air path; The high-pressure chamber and the low-pressure chamber are also connected via a pressurizing mechanism, which is used to pump the gas in the low-pressure chamber into the high-pressure chamber.

10. A vehicle, characterized in that: Comprising the air suspension system as claimed in claim 9.

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