Additional air chamber for multi-cavity air spring

Abstract

The utility model discloses an additional air chamber for a multi-cavity air spring, which belongs to the technical field of air suspension and comprises two tank bodies, the two tank bodies are symmetrically arranged, a plurality of air chamber cavities are arranged in the two tank bodies, a plurality of connecting pipes are fixedly connected to the circumferential surfaces of the two tank bodies, and the connecting pipes are respectively communicated with the air chamber cavities. An air cylinder is fixedly connected among the multiple connecting pipes, the air cylinder is communicated with the multiple connecting pipes, the top end of the air cylinder is fixedly connected with an air nozzle, the air nozzle is communicated with the air cylinder, the bottom end of the air cylinder is fixedly connected with a telescopic air cylinder, the output end of the telescopic air cylinder movably penetrates into the air cylinder, and the output end of the telescopic air cylinder is fixedly connected with a sealing plug; according to the multi-stage air spring adjusting device, only one telescopic air cylinder and one sealing plug are needed for multi-stage adjustment, the sealing plug controls opening and closing of the multiple air chambers to conduct multi-stage adjustment of the air spring, the structure is simple, the use cost is low, and follow-up maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of air suspension technology, and more specifically, to an additional air chamber for a multi-chamber air spring. Background Technology

[0002] Air springs are commonly used in vehicle air suspension systems. They work by using an air compressor to generate compressed air, which is then fed into the air chambers of the springs and shock absorbers to change the vehicle's height. Level sensors are located near the front and rear wheels. Based on the output signals from these sensors, the air suspension control unit determines the change in vehicle height and then controls the compressor and exhaust valve to compress or extend the springs, thereby achieving a shock absorption effect.

[0003] Currently, air springs are divided into single-chamber and multi-chamber types. Single-chamber air springs mainly rely on one air chamber for compression control, while multi-chamber air springs can additionally control compressed gas from multiple auxiliary air chambers. Compared with single-chamber air springs, multi-chamber air springs have a wider adjustment range and can achieve multi-level adjustment. When applied to air suspension systems, they improve vehicle comfort. However, most existing multi-chamber air springs typically consist of multiple air tanks, each equipped with a solenoid valve. This not only results in high operating costs but also makes subsequent maintenance difficult due to the multiple solenoid valves. Therefore, this invention proposes an auxiliary air chamber for multi-chamber air springs. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an auxiliary air chamber for multi-cavity air springs, which aims to solve the problem that the auxiliary air chamber of multi-cavity air springs in the prior art is usually composed of multiple air tanks, each equipped with a solenoid valve. This not only results in high usage costs, but also makes subsequent maintenance difficult due to the control of multiple solenoid valves.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] An auxiliary air chamber for a multi-chamber air spring includes two tanks symmetrically arranged. Each tank has multiple air chambers. Multiple connecting pipes are fixedly connected to the circumferential surfaces of both tanks, and each connecting pipe communicates with one of the multiple air chambers. An air cylinder is fixedly connected between the multiple connecting pipes and communicates with the multiple connecting pipes. An air nozzle is fixedly connected to the top of the air cylinder and communicates with the air cylinder. A telescopic cylinder is fixedly connected to the bottom of the air cylinder, and the output end of the telescopic cylinder extends movably into the air cylinder. A sealing plug is fixedly connected to the output end of the telescopic cylinder and slides within the air cylinder, corresponding to the multiple connecting pipes and the air cylinder.

[0009] As a preferred embodiment of this utility model, one end of each of the plurality of connecting tubes is fixedly connected with a side sealing gasket, and each of the plurality of side sealing gaskets corresponds to a sealing plug.

[0010] As a preferred embodiment of this utility model, a lower sealing gasket is fixedly connected to the bottom end of the air nozzle, and the lower sealing gasket corresponds to the sealing plug, and an upper sealing gasket is fixedly connected to the top end of the air nozzle.

[0011] As a preferred embodiment of this utility model, the bottom end of the telescopic cylinder is fixedly connected to a mounting base, and a support column is fixedly connected to the mounting base, and the support column is fixedly connected to the bottom end of the two tanks.

[0012] 3. Beneficial effects

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) In this scheme, the sealing plug is controlled to extend and retract inside the air cylinder by the telescopic cylinder, so that the required number of air chambers are connected with the main air chamber of the air spring, thereby realizing the multi-stage adjustment of the air spring. The multi-stage adjustment only requires one telescopic cylinder and one sealing plug. The sealing plug controls the opening and closing of multiple air chambers to achieve multi-stage adjustment of the air spring. The structure is simple, the cost of use is low, and it is convenient for subsequent maintenance. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Explanation of the labels in the diagram:

[0019] 1. Tank body; 2. Gas chamber; 3. Connecting pipe; 4. Air cylinder; 5. Air nozzle; 6. Telescopic cylinder; 7. Sealing plug; 8. Side sealing gasket; 9. Lower sealing gasket; 10. Upper sealing gasket; 11. Mounting base; 12. Support column. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-3 An auxiliary air chamber for a multi-chamber air spring includes two tanks 1 arranged symmetrically. Each tank 1 has multiple air chambers 2. Multiple connecting pipes 3 are fixedly connected to the circumferential surfaces of the two tanks 1, and the multiple connecting pipes 3 communicate with the multiple air chambers 2 respectively. An air cylinder 4 is fixedly connected between the multiple connecting pipes 3, and the air cylinder 4 communicates with the multiple connecting pipes 3. An air nozzle 5 is fixedly connected to the top of the air cylinder 4, and the air nozzle 5 communicates with the air cylinder 4. A telescopic cylinder 6 is fixedly connected to the bottom of the air cylinder 4, and the output end of the telescopic cylinder 6 moves through the air cylinder 4. A sealing plug 7 is fixedly connected to the output end of the telescopic cylinder 6, and the sealing plug 7 is slidably connected inside the air cylinder 4, corresponding to the multiple connecting pipes 3 and the air cylinder 4.

[0025] In this embodiment, the air nozzle 5 is connected to the air spring through a pipeline. When the air spring extends and retracts in the air suspension system, the telescopic cylinder 6 slides in the air cylinder 4 by controlling the sealing plug 7, so that the required number of connecting pipes 3 are opened. The multiple connecting pipes 3 and the air cylinder 4 make the air nozzle 5 communicate with multiple air chambers 2, thereby changing the stiffness of the air spring and controlling the elasticity of the vehicle suspension.

[0026] Specifically, one end of each of the multiple connecting pipes 3 is fixedly connected to a side sealing gasket 8, and each of the multiple side sealing gaskets 8 corresponds to a sealing plug 7.

[0027] In this embodiment, multiple side sealing gaskets 8 are disposed between multiple connecting pipes 3 and air cylinder 4, which can ensure the sealing between multiple connecting pipes 3 and air cylinder 4 and prevent air leakage from the air chamber.

[0028] Specifically, the bottom of the air nozzle 5 is fixedly connected to a lower sealing gasket 9, and the lower sealing gasket 9 corresponds to the sealing plug 7. The top of the air nozzle 5 is fixedly connected to an upper sealing gasket 10.

[0029] In this embodiment, when the telescopic cylinder 6 controls the sealing plug 7 to close the multiple connecting pipes 3, the top of the sealing plug 7 contacts the lower sealing gasket 9, which improves the sealing performance after the multiple connecting pipes 3 are closed. The upper sealing gasket 10 is used to improve the sealing performance of the gas supplied between the air nozzle 5 and the air spring.

[0030] Specifically, the bottom end of the telescopic cylinder 6 is fixedly connected to a mounting base 11, and a support column 12 is fixedly connected to the mounting base 11, and the support column 12 is fixedly connected to the bottom end of the two tanks 1.

[0031] In this embodiment, the mounting base 11 facilitates the installation of the telescopic cylinder 6, and the support column 12 is used to support the two tanks 1, so that the two tanks 1 remain stable during use.

[0032] Working principle: The air nozzle 5 is connected to the air spring through the pipeline. When the air spring extends and retracts in the air suspension system, the telescopic cylinder 6 slides in the air cylinder 4 through the control sealing plug 7, so that the required number of connecting pipes 3 are opened. After the required number of connecting pipes 3 are opened, the corresponding air chamber 2 is connected to the air spring through the air cylinder 4 and the air nozzle 5, thereby changing the stiffness of the air spring and controlling the elasticity of the vehicle suspension.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An auxiliary air chamber for a multi-chamber air spring, comprising two tanks (1), characterized in that: The two tanks (1) are arranged symmetrically. Each of the two tanks (1) has multiple air chambers (2). Multiple connecting pipes (3) are fixedly connected to the circumferential surface of each of the two tanks (1), and the multiple connecting pipes (3) are respectively connected to the multiple air chambers (2). An air cylinder (4) is fixedly connected between the multiple connecting pipes (3), and the air cylinder (4) is connected to the multiple connecting pipes (3). An air nozzle (5) is fixedly connected to the top of the air cylinder (4), and the air nozzle (5) is connected to the air cylinder (4). A telescopic cylinder (6) is fixedly connected to the bottom of the air cylinder (4), and the output end of the telescopic cylinder (6) moves through the air cylinder (4). A sealing plug (7) is fixedly connected to the output end of the telescopic cylinder (6), and the sealing plug (7) is slidably connected inside the air cylinder (4) and corresponds to the multiple connecting pipes (3) and the air cylinder (4).

2. An auxiliary air chamber for a multi-chamber air spring according to claim 1, characterized in that: Each of the multiple connecting tubes (3) has a side sealing gasket (8) fixedly connected to one end, and each of the multiple side sealing gaskets (8) corresponds to a sealing plug (7).

3. An auxiliary air chamber for a multi-chamber air spring according to claim 2, characterized in that: The bottom end of the air nozzle (5) is fixedly connected to a lower sealing gasket (9), and the lower sealing gasket (9) corresponds to the sealing plug (7). The top end of the air nozzle (5) is fixedly connected to an upper sealing gasket (10).

4. An auxiliary air chamber for a multi-chamber air spring according to claim 3, characterized in that: The bottom end of the telescopic cylinder (6) is fixedly connected to a mounting base (11), and a support column (12) is fixedly connected to the mounting base (11), and the support column (12) is fixedly connected to the bottom end of the two tanks (1).

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