Air storage device for air suspension system

Abstract

The present invention proposes an air storage device for an air suspension system, comprising: an air release valve, an air charging valve and a plurality of air storage units; each air storage unit is composed of M air storage containers, one of which is used as a main container, and the remaining air storage containers are classified into N levels; each air storage container is provided with an input end and an output end, and within the same air storage unit, the output end of the air storage container of the i-th level is connected to the input end of one of the air storage containers of the i-1th category through a connecting pipe; the output end of the air storage container of the j-th level is connected to the input end of one of the air storage containers of the j+1th category through a connecting pipe. In the present invention, the branching of the air charging and discharging pipelines of air storage containers of different levels is realized, and the setting of the one-way valve makes the air charging and discharging on different branches not interfere with each other, thereby minimizing the impact of the failure of a single air storage container on the overall air storage device and improving the safety and reliability of the air storage device.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air suspension, and in particular to an air storage device for an air suspension system. Background Art

[0002] More and more cars (including passenger cars, commercial vehicles and other special-purpose vehicles) use air suspension systems in their chassis. Compared with traditional suspension, air suspension has a more complex structure and more parts, especially for four-point air suspension, an air tank is required. The main function of the air tank is to quickly and timely fill the air spring with high-pressure gas, so that the air spring can reach the required height and stiffness in a short time.

[0003] Since the volume of gas tanks is generally large, adding a gas tank is a big challenge to the layout of the entire vehicle. In order to design a gas tank that meets the volume requirements in a harsh or limited space, the gas tank is usually designed to be a special shape or the layout space of other parts is sacrificed, which increases the difficulty of processing and layout of the gas tank. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes an air storage device for an air suspension system.

[0005] The present invention provides an air storage device for an air suspension system, comprising: an air release valve, an air charging valve and a plurality of air storage units;

[0006] Each gas storage unit is composed of M gas storage containers, one of which is used as the main container, and the remaining gas storage containers are classified into N levels; each gas storage container is provided with an input end and an output end. In the same gas storage unit, the output end of the gas storage container of the i-th level is connected to the input end of one of the gas storage containers of the i-1th category through a connecting pipe; the output end of the gas storage container of the j-th level is connected to the input end of one of the gas storage containers of the j+1th category through a connecting pipe, 2≦i≦n, 1≦j≦n-1;

[0007] In the same gas storage unit, the output end of each gas storage container of the first level is connected to the input end of the main container through a connecting pipe; the output end of the main container is connected to the input end of each gas storage container of the first category through a connecting pipe; each connecting pipe is provided with a one-way valve;

[0008] The output end of the main container of each gas storage unit is connected to the deflation valve, and the input end is connected to the inflation valve.

[0009] Preferably, the one-way valves are all rubber valves.

[0010] Preferably, a two-way pump is further included, one end of which is connected in parallel to the deflation valve and the inflation valve.

[0011] Preferably, a three-way valve is further included, and the two-way pump is connected to the deflation valve and the inflation valve respectively through the three-way valve.

[0012] Preferably, multiple gas storage containers in the same gas storage unit are connected in a tree-like manner.

[0013] Preferably, in the same gas storage unit, each gas storage container as a parent node is connected to k gas storage containers as child nodes, and 2≦k≦5.

[0014] Preferably, the two connecting pipes between the two connected gas storage containers are wrapped in the same protective cover.

[0015] The present invention proposes an air storage device for an air suspension system, which replaces a large air tank with a plurality of small air storage containers. Each air storage container is connected in sequence with air pipes, making it convenient to design the shape and size of each air tank according to the space of the entire vehicle.

[0016] At the same time, in the present invention, by setting up multiple main containers and gas storage units, the branching of the gas charging and discharging pipelines of gas storage containers of different levels is realized, and the setting of the one-way valve makes the charging and discharging on different branches not interfere with each other, thereby minimizing the impact of the failure of a single gas storage container on the overall gas storage device and improving the safety and reliability of the gas storage device. At the same time, by making the charging and discharging channels independent of each other, the gas reflux phenomenon between different gas storage containers during the charging and discharging process is avoided, which is conducive to improving the charging and discharging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural diagram of an air storage device for an air suspension system proposed by the present invention;

[0018] Figure 2 This is a structural diagram of another air storage device for an air suspension system proposed by the present invention.

[0019] Illustration: deflation valve 1, inflation valve 2, air storage unit 3, main container 4, one-way valve 5, two-way pump 6, three-way valve 7 and protective cover 8. DETAILED DESCRIPTION

[0020] Reference Figure 1 The present invention provides an air storage device for an air suspension system, comprising: an air release valve 1, an air charging valve 2 and a plurality of air storage units 3.

[0021] Each gas storage unit 3 is composed of M gas storage containers, one of which is used as the main container 4, and the remaining gas storage containers are classified into N levels. Each gas storage container is provided with an input end and an output end. In the same gas storage unit 3, the output end of the gas storage container of the i-th level is connected to the input end of one of the gas storage containers of the i-1th category through a connecting pipe. The output end of the gas storage container of the j-th level is connected to the input end of one of the gas storage containers of the j+1th category through a connecting pipe, 2≦i≦n, 1≦j≦n-1.

[0022] In the same gas storage unit 3, the output end of each gas storage container of the first level is connected to the input end of the main container 4 through a connecting pipe. The output end of the main container 4 is connected to the input end of each gas storage container of the first category through a connecting pipe. A one-way valve 5 is provided on each connecting pipe. That is, when the pressure difference between the two gas storage containers connected by the connecting pipe reaches a preset pressure threshold, the one-way valve 5 automatically opens, so that the gas in the gas storage container with a high pressure automatically flows into the gas storage container with a low pressure until the two reach a balance again. In specific implementation, the one-way valve 5 is a rubber valve.

[0023] The output end of the main container 4 of each gas storage unit 3 is connected to the deflation valve 1 , and the input end is connected to the inflation valve 2 .

[0024] Thus, in this embodiment, when the gas storage device inflates the airbag, it is only necessary to open the air release valve 1. Then, as the gas in the main container 4 flows out, the pressure decreases, so that the one-way valve 5 between the output end of the i-th level gas storage container and the input end of the i-1-th category gas storage container is connected, and the i value continues to increase until the gas in the n-th level gas storage container is released, so that the entire gas storage unit 3 and the corresponding main container 4 reach a new balance.

[0025] Similarly, when replenishing gas to the gas storage device, it is only necessary to open the charging valve 2. As the gas in the main container 4 increases, the one-way valve 5 between the output end of the j-th level gas storage container and the input end of the j+1-th category gas storage container is connected, and the j value continues to increase until the pressure of the n-th level gas storage container increases, causing the entire gas storage unit 3 and the corresponding main container 4 to reach a new balance.

[0026] In this embodiment, by setting up multiple main containers 4 and gas storage units 3, the branching of the gas charging and discharging pipelines of gas storage containers of different levels is realized, and the setting of the one-way valve 5 makes the charging and discharging on different branches not interfere with each other, thereby minimizing the impact of the failure of a single gas storage container on the overall gas storage device and improving the safety and reliability of the gas storage device. At the same time, by making the charging and discharging channels independent of each other, the gas reflux phenomenon between different gas storage containers during the charging and discharging process is avoided, which is conducive to improving the charging and discharging efficiency.

[0027] In this embodiment, multiple gas storage containers in the same gas storage unit 3 are connected in a tree-like manner. Specifically, in the same gas storage unit 3, each gas storage container as a parent node is connected to k gas storage containers as child nodes, 2≦k≦5.

[0028] In this embodiment, the two connecting pipes between the two connected gas storage containers are wrapped in the same protective cover 8 to facilitate wiring.

[0029] In this embodiment, a two-way pump 6 is further included, and one end of the two-way pump 6 is connected in parallel to the deflation valve 1 and the inflation valve 2. Specifically, the two-way pump 6 can be connected to the deflation valve 1 and the inflation valve 2 respectively through the three-way valve 7. In this way, the two-way pump 6 can speed up the speed of charging and discharging the gas storage device, thereby improving the working efficiency. The other end of the two-way pump 6 can be connected to the air bag and the reserved gas replenishment connector of the gas storage device respectively.

[0030] The above description is only a preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air storage device for an air suspension system, characterized in that: include: An air release valve (1), an air charging valve (2), and a plurality of air storage units (3); Each gas storage unit (3) is composed of M gas storage containers, one of which is used as a main container (4), and the remaining gas storage containers are classified into N levels; each gas storage container is provided with an input end and an output end, and within the same gas storage unit (3), the output end of the gas storage container of the i-th level is connected to the input end of one of the gas storage containers of the i-1th category through a connecting pipe; the output end of the gas storage container of the j-th level is connected to the input end of one of the gas storage containers of the j+1th category through a connecting pipe, 2≦i≦n, 1≦j≦n-1; In the same gas storage unit (3), the output end of each gas storage container of the first level is connected to the input end of the main container (4) through a connecting pipe; the output end of the main container (4) is connected to the input end of each gas storage container of the first category through a connecting pipe; each connecting pipe is provided with a one-way valve (5); The output end of the main container (4) of each gas storage unit (3) is connected to the deflation valve (1), and the input end is connected to the inflation valve (2); Multiple gas storage containers in the same gas storage unit (3) are connected in a tree-like manner; In the same gas storage unit (3), each gas storage container as a parent node is connected to k gas storage containers as child nodes, 2≦k≦5.

2. The air storage device for an air suspension system according to claim 1, characterized in that: The one-way valves (5) are all made of rubber valves.

3. The air storage device for an air suspension system according to claim 1, characterized in that: It also includes a two-way pump (6), one end of which is connected in parallel to the deflation valve (1) and the inflation valve (2).

4. The air storage device for an air suspension system according to claim 3, characterized in that: It also includes a three-way valve (7), and the two-way pump (6) is respectively connected to the deflation valve (1) and the inflation valve (2) via the three-way valve (7).

5. The air storage device for an air suspension system according to claim 1, characterized in that: The two connecting pipes between the two connected gas storage containers are wrapped in the same protective sleeve (8).

Images