Air path distribution assembly, air suspension system and vehicle

Abstract

According to the air path distribution assembly, the air suspension system and the vehicle, one of a first control valve and a first blocking piece is selectively arranged on a first switching air path, and one of a second control valve and a second blocking piece is selectively arranged on a second switching air path; the first switching air passage and the second switching air passage can realize air passage communication required by a closed passage mode and can also realize air passage communication required by an open passage mode, so that the universality of the air passage distribution assembly is improved, and the air passage distribution assembly can be applied to an open air suspension system and also can be applied to a closed air suspension system. The air path distribution assembly can be applied to a closed air suspension system, the mold opening design of the air path distribution assembly due to replacement of different air suspension systems is not needed, the manufacturing cost of the air path distribution assembly is reduced, and the manufacturing period of the different air suspension systems is shortened.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an air distribution assembly, an air suspension system and a vehicle. Background Art

[0002] The core function of the air suspension system is to raise and lower the vehicle by inflating and deflating the air spring. According to the different air circuit principles, it can be divided into open and closed air suspension systems. Most open air suspension systems adopt a split structure, with the pump body assembly and a distribution valve combination. The closed air suspension system adopts an integrated structure, and the air circuit is fully integrated into the pump body. It can be seen that the overall layout and structure of the open and closed air suspension systems are quite different, and targeted mold opening is required to install open or closed air suspension systems. It is impossible to switch between open and closed air suspension systems according to actual needs. Summary of the invention

[0003] The embodiment of the present application provides a gas path distribution assembly, which improves the versatility of the gas path distribution assembly to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object, according to the first aspect of the present application, a gas circuit distribution assembly is provided, wherein the gas circuit distribution assembly has a closed passage mode and an open passage mode, and the gas circuit distribution assembly comprises:

[0005] A main body, wherein a plurality of air passages are provided in the main body, the plurality of air passages comprising a first switching air passage and a second switching air passage, wherein two ends of the first switching air passage are respectively used to communicate with an air spring assembly and an air compression assembly of an air suspension system, and two ends of the second switching air passage are respectively used to communicate with an air storage tank of the air suspension system and the air spring assembly;

[0006] When the gas path distribution assembly is in the closed path mode, a first control valve is provided on the first switching gas path to control the on and off of the first switching gas path, and a second control valve is provided on the second switching gas path to control the on and off of the second switching gas path;

[0007] When the gas path distribution assembly becomes the open passage mode, a first blocking member is provided on the first switching airway for disconnecting the first switching airway, and a second blocking member (16) is provided on the second switching airway (122). The second blocking member blocks the installation position of the second control valve on the second switching airway and avoids the flow path of the second switching airway (122) so that the second switching airway is conductive.

[0008] Optionally, a first installation opening is provided on an inner wall of the first switching air passage, and one of the first control valve and the first blocking member is installed to the first installation opening.

[0009] Optionally, the first mounting opening includes a first mounting sub-opening and a second mounting sub-opening that are arranged opposite to each other;

[0010] When the first switching air passage is provided with the first control valve, the first control valve passes through the first mounting sub-opening and the second mounting sub-opening and is sealed and fixed;

[0011] When the first switching air passage is provided with the first blocking piece, the first blocking piece passes through the first mounting sub-opening and the second mounting sub-opening and blocks the first switching air passage.

[0012] Optionally, the first sealing member includes a first sealing component and a first sealing body, the first sealing body is passed through the first mounting sub-opening and the second mounting sub-opening and blocks the first switching airway, and the first sealing component abuts between the first sealing body and the inner wall of the first mounting sub-opening and between the first sealing body and the inner wall of the second mounting sub-opening.

[0013] Optionally, the first sealing assembly includes a first sealing ring and a second sealing ring, both of which are mounted on the first sealing body, the first sealing ring abuts between the inner wall of the first mounting sub-opening and the first sealing body, and the second sealing ring abuts between the inner wall of the second mounting sub-opening and the first sealing body.

[0014] Optionally, the inner wall of the second switching air channel is provided with a second installation opening, and either the second control valve or the second blocking member is installed in the second installation opening.

[0015] Optionally, when the second switching air passage is provided with the second control valve, the second control valve passes through the second mounting opening and is sealed and fixed;

[0016] When the second switching airway is provided with the second blocking piece, the second blocking piece blocks the second mounting opening, and the second switching airway is a passage.

[0017] Optionally, the second sealing member includes a second sealing body and a third sealing ring, the third sealing ring is sleeved on the second sealing body, the second sealing body blocks the second installation opening, and the second sealing ring abuts between the inner wall of the second installation opening and the second sealing body.

[0018] Optionally, the surface of the main body is provided with an air compression inlet and an air compression outlet connected to the first switching air channel, the air compression inlet is used to connect to the input end of the air compression assembly, and the air compression outlet is used to connect to the output end of the air compression assembly.

[0019] Optionally, an air input port and an air output port are provided on the surface of the main body, and the plurality of air passages include a first air passage and a second air passage;

[0020] One end of the first air channel is connected to the air input port, and the other end is connected to both the first switching air channel and the air compression inlet;

[0021] One end of the second air channel is communicated with the air output port, and the other end is communicated with the compressed air outlet.

[0022] Optionally, a one-way valve is provided on the first air passage, and a normally closed solenoid valve is provided on the second air passage.

[0023] Optionally, an air spring air inlet and outlet group is opened on the surface of the main body, and the multiple air duct passages include an air spring air duct group. The air spring air inlet and outlet group is used to connect with the air spring assembly, and the air spring air inlet and outlet group is connected with both the first switching air duct and the second switching air duct through the air spring air duct group.

[0024] Optionally, the air spring air inlet and outlet group includes a plurality of air spring air inlets and outlets, and the plurality of air spring air inlets and outlets are respectively used to communicate with the air spring assembly;

[0025] The air spring airway group includes an air spring main airway and multiple air spring branch airways. The multiple air spring branch airways are respectively connected to the first switching airway and the second switching airway through the air spring main airway, and the ends of the multiple air spring branch airways away from the air spring main airway are respectively connected to the multiple air spring air inlets and outlets.

[0026] Optionally, a third control valve is provided on the air spring air passage for controlling the opening and closing of the air spring air passage.

[0027] Optionally, a gas tank inlet and outlet are provided on the surface of the main body for connecting the gas tank;

[0028] The plurality of air passages include a third air passage, one end of the third air passage is communicated with the air inlet and outlet of the air storage tank, and the other end of the third air passage is communicated with the second switching air passage.

[0029] Optionally, a fourth control valve is provided on the third air channel for controlling the opening and closing of the third air channel.

[0030] Optionally, the plurality of airway passages further include a fourth airway, one end of the fourth airway being connected to the second airway, and the other end of the fourth airway being connected to both the third airway and the second switching airway.

[0031] Optionally, the plurality of airway passages further include a fifth airway, one end of the fifth airway is connected to the first switching airway, and the other end is connected to the third airway, and a fifth control valve is provided on the fifth airway for controlling the opening and closing of the fifth airway.

[0032] Optionally, when the air circuit distribution assembly is in a closed passage mode, the air circuit distribution assembly includes a first control mode and a second control mode. When the air circuit distribution assembly is in the first control mode or the second control mode, the second control valve, the third control valve and the fourth control valve are all in an open state, the first control valve and the fifth control valve are both in a closed state, and the air inlet and outlet of the air storage tank are connected to the third air channel, the second switching air channel, the air spring air channel group and the air spring inlet and outlet group in sequence.

[0033] Optionally, when the air circuit distribution assembly is in a closed passage mode, the air circuit distribution assembly includes a third control mode. When the air circuit distribution assembly is in the third control mode, the second control valve, the third control valve and the fifth control valve are all in an open state, the first control valve and the fourth control valve are both in a closed state, and the air inlet and outlet of the air storage tank are connected to the third air channel, the fifth air channel, the air compression assembly, the fourth air channel, the second switching air channel, the air spring air channel group and the air spring inlet and outlet group in sequence.

[0034] Optionally, when the air circuit distribution assembly is in a closed passage mode, the air circuit distribution assembly includes a fourth control mode. When the air circuit distribution assembly is in the fourth control mode, the first control valve, the third control valve and the fourth control valve are all in an open state, the second control valve and the fifth control valve are both in a closed state, and the air spring air inlet and outlet group are sequentially connected to the air spring air channel group, the first switching air channel, the air compression assembly, the fourth air channel, the third air channel and the air tank inlet and outlet.

[0035] Optionally, when the air circuit distribution assembly is in an open passage mode, the air circuit distribution assembly includes a fifth control mode. When the air circuit distribution assembly is in the fifth control mode, the third control valve and the fourth control valve are in an open state, the fifth control valve is in a closed state, and the air inlet and outlet of the air storage tank are connected to the third air channel, the second switching air channel, the air spring air channel group and the air spring inlet and outlet group in sequence.

[0036] Optionally, when the gas circuit distribution assembly is in an open passage mode, the gas circuit distribution assembly includes an open gas tank exhaust mode. When the gas circuit distribution assembly is in the open gas tank exhaust mode, the normally closed solenoid valve 1241 and the fourth control valve are in an open state, the third control valve and the fifth control valve are in a closed state, and the gas inlet and outlet of the gas tank are connected to the third air duct, the fourth air duct, the second air duct and the air output port in sequence.

[0037] Optionally, when the air circuit distribution assembly is in an open passage mode, the air circuit distribution assembly includes an open air spring exhaust mode. When the air circuit distribution assembly is in the open air spring exhaust mode, the third control valve and the normally closed solenoid valve 1241 are both in an open state, the fourth control valve and the fifth control valve are in a closed state, and the air spring air inlet and outlet group are sequentially connected to the air spring airway group, the second switching airway, the fourth airway, the second airway and the air output port.

[0038] According to a second aspect of the present application, an air suspension system is provided, comprising:

[0039] gas tank;

[0040] Air compression assembly;

[0041] air spring assembly; and

[0042] As in the air path distribution assembly described in the first aspect, the air storage tank, the air compression assembly and the air spring assembly are all connected to the air path distribution assembly.

[0043] According to a third aspect of the present application, a vehicle is also provided, comprising the air distribution assembly as described in the first aspect or the air suspension system as described in the second aspect.

[0044] In the air distribution assembly of the embodiment of the present application, by selectively setting one of the first control valve and the first blocking piece on the first switching air channel, and selectively setting one of the second control valve and the second blocking piece on the second switching air channel, the first switching air channel and the second switching air channel can achieve both the air channel connection required for the closed passage mode and the air channel connection required for the open passage mode, thereby improving the versatility of the air distribution assembly, so that the air distribution assembly can be applied to both open air suspension systems and closed air suspension systems. There is no need to re-open the mold and design the air distribution assembly due to changing different air suspension systems, which is beneficial to reducing the manufacturing cost of the air distribution assembly and shortening the manufacturing period of different air suspension systems.

[0045] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0047] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0048] Figure 1 is a schematic structural diagram of a gas path distribution assembly provided in an exemplary embodiment of the present disclosure;

[0049] Figure 2 is a structural schematic diagram of a main body in a gas path distribution assembly provided in an exemplary embodiment of the present disclosure;

[0050] Figure 3 is an internal cross-sectional view of a gas distribution assembly provided in an exemplary embodiment of the present disclosure in a closed passage mode;

[0051] Figure 4 is an internal cross-sectional view of a gas distribution assembly provided in an exemplary embodiment of the present disclosure in an open passage mode;

[0052] Figure 5 is an internal cross-sectional view of a first blocking member in a gas path distribution assembly provided in an exemplary embodiment of the present disclosure;

[0053] Figure 6 is an internal cross-sectional view of a second blocking member in a gas path distribution assembly provided in an exemplary embodiment of the present disclosure;

[0054] Figure 7 is a gas circuit schematic diagram of a gas circuit distribution assembly in a closed passage mode provided in an exemplary embodiment of the present disclosure;

[0055] Figure 8 It is a gas path principle diagram of the gas path distribution assembly provided in an exemplary embodiment of the present disclosure in an open passage mode.

[0056] Description of reference numerals:

[0057] 1. Air distribution assembly; 11. Main body; 111. Air compression inlet; 112. Air compression outlet; 113. Air input port; 114. Air output port; 115. Air spring inlet and outlet; 116. Air tank inlet and outlet; 117. Pressure sensor port; 118. Heat sink; 12. Airway passage; 121. First switching airway; 1211. First installation opening; 12111. First installation sub-opening; 12112. Second installation sub-opening; 122. Second switching airway; 1221. Second installation opening; 123. First airway; 1231. One-way valve; 124. Second airway; 1241. Normally closed electric Magnetic valve; 125, third air channel; 1251, fourth control valve; 126, fourth air channel; 1261, dryer; 127, fifth air channel; 1271, fifth control valve; 128, air spring air channel group; 1281, air spring main air channel; 1282, air spring branch air channel; 12821, third control valve; 13, first control valve; 14, first blocking member; 141, first sealing assembly; 1411, first sealing ring; 1412, second sealing ring; 142, first blocking body; 15, second control valve; 16, second blocking member; 161, second blocking body; 162, third sealing ring; 17, pressure sensor;

[0058] 2. Gas storage tank; 21. External filling port of the gas storage tank;

[0059] 3. Air compression assembly; 31. Compressor; 32. Power limiting valve;

[0060] 4. Air spring assembly; 41. Air spring. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0062] This application provides a gas distribution assembly 1, please refer to Figure 3 , Figure 4 , Figure 7 as well as Figure 8 .

[0063] The air path distribution assembly 1 can be applied to an air suspension system, and according to the closed air suspension structure and the open air suspension structure of the air suspension system, the air path distribution assembly 1 has a closed passage mode and an open passage mode. In other words, whether it is an air suspension system with an open air suspension structure or an air suspension system with a closed air suspension structure, the air path distribution assembly 1 provided in this embodiment can be applied to achieve air flow channel distribution.

[0064] The air path distribution assembly 1 includes a main body 11. A plurality of air path passages 12 are provided in the main body 11, and the plurality of air path passages 12 include a first switching air path 121 and a second switching air path 122. The two ends of the first switching air path 121 are respectively used to communicate with the air spring assembly 4 and the air compression assembly 3 of the air suspension system. The two ends of the second switching air path 122 are respectively used to communicate with the air storage tank 2 and the air spring assembly 4 of the air suspension system. When the first switching air path 121 and the second switching air path 122 are both in a switch-controllable state, gas exchange can be performed between the air spring assembly 4 and the air storage tank 2, and the internal circulation of air in the air suspension system is realized, that is, the closed path mode of the air path distribution assembly 1 is realized. When the first switching air path 121 is disconnected and the second switching air path 122 is in a conducting state, the air flow direction between the air spring assembly 4 and the air storage tank 2 can only be the air flow from the air storage tank 2 to the air spring assembly 4, and the air cannot be circulated, realizing the open path mode of the air path distribution assembly 1.

[0065] Specifically, when the air path distribution assembly 1 is in a closed passage mode, a first control valve 13 is provided on the first switching air channel 121 for controlling the on-off of the first switching air channel 121, and a second control valve 15 is provided on the second switching air channel 122 for controlling the on-off of the second switching air channel 122. By controlling the on-off of the first control valve 13 and the second control valve 15, the air storage tank 2 can supply air to the air spring assembly 4, and the air spring assembly 4 can also supply air to the air storage tank 2, thereby realizing air circulation.

[0066] When the air distribution assembly 1 is in the open passage mode, a first blocking member 14 is provided on the first switching air passage 121, which is used to disconnect the first switching air passage 121, that is, disconnect the air passage of the air spring assembly 4 to discharge air and compress the discharged air to the air storage tank 2, thereby preventing air circulation. A second blocking member 16 is provided on the second switching air passage 122, which blocks the installation position of the second control valve on the second switching air passage and avoids the flow path of the second switching air passage 122, so that the second switching air passage is conducted, so that the air storage tank 2 can always output air to the air spring assembly 4.

[0067] The technical solution provided in the present application enables the first switching air channel 121 to selectively set one of the first control valve 13 and the first blocking member 14, and the second switching air channel 122 to selectively set one of the second control valve 15 and the second blocking member 16, so that the first switching air channel 121 and the second switching air channel 122 can achieve both the air channel connection required for the closed passage mode and the air channel connection required for the open passage mode, thereby improving the versatility of the air path distribution assembly 1, so that the air path distribution assembly 1 can be applied to both open air suspension systems and closed air suspension systems, and there is no need to re-open the mold and design the air path distribution assembly 1 due to the replacement of different air suspension systems, which is beneficial to reducing the manufacturing cost of the air path distribution assembly 1 and shortening the manufacturing period of different air suspension systems.

[0068] In some embodiments, see Figure 3 and Figure 4 , the inner wall of the first switching airway 121 is provided with a first installation opening 1211. Either the first control valve 13 or the first blocking member 14 is installed to the first installation opening 1211. The first installation opening 1211 can be one opening, two openings or three openings, etc., without limitation, and the shape of the first installation opening 1211 can be circular, square, diamond, etc., without limitation. The number and shape of the first installation openings 1211 are matched and arranged according to the structure of the first control valve 13 and the first blocking member 14, so that the first blocking member 14 and the first control valve 13 can be fixed at the first installation opening 1211. In order to save the design of the shape structure, in this embodiment, the structure of the first blocking member 14 is designed according to the structure of the first control valve 13, and the fixing method and fixing position of the first blocking member 14 and the first installation opening 1211 are also designed with reference to the first control valve 13. According to the mode that the air distribution assembly 1 needs to achieve, if the air distribution assembly 1 needs to meet the closed passage mode, then the first control valve 13 is set at the first installation opening 1211 to facilitate the on-off control of the first switching air channel 121. If the air distribution assembly 1 needs to meet the open passage mode, then the first blocking member 14 is set at the first installation opening 1211 to make the first switching air channel 121 in a disconnected state to prevent the air of the air spring assembly 4 from being discharged back to the air compression assembly 3 and then compressed back into the air storage tank 2.

[0069] Further, the first installation opening 1211 includes a first installation sub-opening 12111 and a second installation sub-opening 12112. The two installation sub-openings are provided mainly to adapt to the structure of the first control valve 13 so that both ends of the first control valve 13 can be fixed at the two installation sub-openings respectively.

[0070] When the first switching airway 121 is provided with the first control valve 13, the first control valve 13 passes through the first mounting sub-opening 12111 and the second mounting sub-opening 12112 and is sealed and fixed, and the air path distribution assembly 1 is in a closed passage mode at this time. It should be noted that the first control valve 13 is sealed and fixed to the inner wall of the first mounting sub-opening 12111 and the inner wall of the second mounting sub-opening 12112, mainly to prevent the first switching airway 121 from leaking at the two mounting sub-openings, thereby affecting the air flow effect.

[0071] When the first switching air channel 121 is provided with the first blocking member 14, the first blocking member 14 passes through the first mounting sub-opening 12111 and the second mounting sub-opening 12112 and blocks the first switching air channel 121, and the air path distribution assembly 1 is in the open passage mode at this time. The first blocking member 14 blocks the first switching air channel 121, blocking the air spring assembly 4 from discharging air toward the air compression assembly 3, and finally the possibility of replenishing the air in the air storage tank 2, thereby ensuring that the air path distribution assembly 1 is in the open passage mode.

[0072] For further information, see Figure 4 and Figure 5 , the first blocking member 14 includes a first sealing component 141 and a first blocking body 142. The first blocking body 142 is inserted into the first mounting sub-opening 12111 and the second mounting sub-opening 12112 and blocks the first switching airway 121. At this time, at least a portion of the first blocking body 142 is located on the flow path of the first switching airway 121, and the contour of the first blocking body 142 matches the airway contour in the first switching airway 121, so that the first blocking body 142 can block the air flow of the first switching airway 121. The first blocking body 142 can be made of a soft material with elastic properties, and the cross-sectional area of ​​the first blocking body 142 in an unstressed state is larger than the flow area of ​​the first switching airway 121. When the first blocking body 142 is forcibly inserted into the first switching airway 121, it is squeezed by the inner wall of the first switching airway 121, so that the first blocking body 142 can eliminate the gap caused by production and assembly errors as much as possible, thereby improving the sealing performance of the blockage. The first sealing component 141 abuts between the first blocking body 142 and the inner wall of the first mounting sub-opening 12111 and between the first blocking body 142 and the inner wall of the second mounting sub-opening 12112, which is beneficial to improve the sealing between the first blocking body 142 and the two mounting sub-openings.

[0073] Furthermore, the first sealing assembly 141 includes a first sealing ring 1411 and a second sealing ring 1412. The first sealing ring 1411 and the second sealing ring 1412 are both sleeved on the first blocking body 142. The first sealing ring 1411 abuts between the inner wall of the first mounting sub-opening 12111 and the first blocking body 142, thereby improving the sealing performance between the first blocking body 142 and the first mounting sub-opening 12111. The second sealing ring 1412 abuts between the inner wall of the second mounting sub-opening 12112 and the first blocking body 142, thereby improving the sealing performance between the first blocking body 142 and the second mounting sub-opening 12112.

[0074] In some embodiments, see Figure 3 and Figure 4 , the inner wall of the second switching airway 122 is provided with a second installation opening 1221. The second control valve 15 and the second blocking member 16 are selectively installed to the second installation opening 1221. The second installation opening 1221 can be one opening, two openings or three openings, etc., without limitation, and the shape of the second installation opening 1221 can be circular, square, diamond, etc., also without limitation. The number and shape of the second installation openings 1221 are matched and arranged according to the structure of the second control valve 15 and the second blocking member 16, so that the second blocking member 16 and the second control valve 15 can be fixed at the second installation opening 1221. In order to save the design of the shape structure, in this embodiment, the structure of the second blocking member 16 is designed according to the structure of the second control valve 15, and the fixing method and fixing position of the second blocking member 16 and the second installation opening 1221 are also designed with reference to the second control valve 15. However, it should be noted that the second blocking member 16 needs to ensure that the second switching airway 122 remains open. Therefore, the second blocking member 16, without the automatic switching opening and closing function, is only used to block the second installation opening 1221 to prevent the second switching airway 122 from being connected to the outside of the airway through the second installation opening 1221, thereby affecting the air flow. In other words, the length of the second blocking member 16 will be shorter than the second control valve 15 to prevent too much of the second blocking member 16 from extending into the second switching airway 122 and blocking the second switching airway 122. According to the mode that the air path distribution assembly 1 needs to achieve, if the air path distribution assembly 1 needs to meet the closed passage mode, then the second control valve 15 is set at the second installation opening 1221 to facilitate the control of the opening and closing of the second switching airway 122. If the air distribution assembly 1 needs to meet the open passage mode, then a second blocking member 16 is provided at the second installation opening 1221 to ensure that the second switching air passage 122 is always in a conducting state to meet the requirements of the air storage tank 2 to normally deliver air to the air spring assembly 4.

[0075] Furthermore, when the second switching airway 122 is provided with a second control valve 15, the second control valve 15 passes through the second installation opening 1221 and is sealed and fixed, preventing the second switching airway 122 from communicating with the outside through the second installation opening 1221. When the second switching airway 122 is provided with a second blocking member 16, the second blocking member 16 blocks the second installation opening 1221, and the second switching airway 122 is a passage. While ensuring that the second switching opening is always in a conducting state, the second switching airway 122 is prevented from communicating with the outside through the second installation opening 1221, thereby affecting the air flow in the second switching channel.

[0076] For further information, see Figure 4 and Figure 6 The second blocking member 16 includes a second blocking body 161 and a third sealing ring 162. The third sealing ring 162 is sleeved on the second blocking body 161, and the second blocking body 161 blocks the second installation opening 1221 to prevent the second switching airway 122 from communicating with the outside through the second installation opening 1221, and does not affect the flow of air in the second switching airway 122. The second sealing ring 1412 abuts against the inner wall of the second installation opening 1221 and the second blocking body 161, further improving the sealing effect between the second blocking body 161 and the second installation opening 1221.

[0077] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The surface of the main body 11 is provided with an air compression inlet 111 and an air compression outlet 112 which are connected to the first switching air channel 121. The air compression inlet 111 is used to communicate with the input end of the air compression assembly 3, so that the air compressed by the air compression assembly 3 can be discharged into the main body 11 through the air compression inlet 111, and the air circulation distribution is realized through the multiple air passages 12 inside the main body 11. The specific distribution process will be described in detail in the subsequent embodiments. The air compression outlet 112 is used to communicate with the output end of the air compression assembly 3, so that the air that needs to be pressurized flowing in the air passage 12 of the main body 11 can flow into the air compression assembly 3, and realize the air pressurization, and then discharged into the main body 11 through the air compression inlet 111 to realize the circulation of air. This process is mainly applied to the closed passage mode.

[0078] Furthermore, an air input port 113 and an air output port 114 are provided on the surface of the main body 11. The air input port 113 and the air output port 114 are not connected to any equipment, but are directly connected to the external environment, and are mainly used to absorb air from the external environment or discharge air to the outside. The multiple air passages 12 include a first air passage 123 and a second air passage 124. Among them, one end of the first air passage 123 is connected to the air input port 113, and the other end is connected to the first switching air passage 121 and the air compression inlet 111, so that the air entering through the air input port 113 can enter the first switching air passage 121 through the first air passage 123, and then flow to the target position through the first switching air passage 121, or enter the air compression inlet 111 through the first air passage 123, and then enter the air compression assembly 3, pressurize the air, and then flow to the target position. One end of the second air passage 124 is connected to the air output port 114, which is used to discharge the air in the main body 11. The other end of the second air passage 124 is in communication with the compressed air outlet 112 for receiving compressed air from the air compression assembly 3 .

[0079] Furthermore, a one-way valve 1231 is provided on the first air passage 123 to ensure that the air at the first air passage 123 will not be diverted, thereby ensuring that only air enters and does not exit the air inlet 113. A normally closed solenoid valve 1241 is provided on the second air passage 124 to control the opening and closing of the second air passage 124, thereby preventing the air from being discharged from the air outlet 114 before completing its task, causing energy waste and even the inability to realize the air suspension function.

[0080] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 An air spring air inlet and outlet group is provided on the surface of the main body 11. The multiple air passages 12 include an air spring air passage group 128. The air spring air inlet and outlet group is used to communicate with the air spring assembly 4. The air spring air inlet and outlet group is connected to the first switching air passage 121 and the second switching air passage 122 through the air spring air passage group 128. The air is transported by the first switching air passage 121 and the second switching air passage 122, so that the air spring assembly 4 can rise and fall. Among them, the first switching air passage 121 and the second switching air passage 122 cooperate with other air passages 12 to transport air, and can realize a variety of air delivery paths, which will be described in detail in subsequent embodiments.

[0081] Further, the air spring air inlet and outlet group includes a plurality of air spring air inlets and outlets 115, and the plurality of air spring air inlets and outlets 115 are respectively used to communicate with the air spring assembly 4. Each air spring air inlet and outlet 115 is connected to an air spring 41, so that the air spring 41 can receive air from the air spring air inlet and outlet 115 and rise, and the air spring 41 can discharge air to the air spring air inlet and outlet 115 and fall. The air spring airway group 128 includes an air spring main airway 1281 and a plurality of air spring branch airways 1282. The plurality of air spring branch airways 1282 are connected to the first switching airway 121 through the air spring main airway 1281, and the plurality of air spring branch airways 1282 are also connected to the second switching airway 122 through the air spring main airway 1281. The plurality of air spring branch airways 1282 are connected in parallel with each other and merge into the air spring main airway 1281. The ends of the multiple air spring branch ducts 1282 away from the air spring main air duct 1281 are respectively connected to the multiple air spring air inlet and outlet ports 115, so that the lifting and lowering of each air spring 41 can be controlled by an independent air spring branch duct 1282, thereby improving the flexibility of air distribution. When the air path distribution assembly 1 is applied to an air suspension system, the flexibility of the air suspension system can also be improved due to the setting of multiple branch ducts, so that the air suspension system can adapt to various road conditions.

[0082] Furthermore, a third control valve 12821 is provided on the air spring air passage 1282 to control the on-off of the air spring air passage 1282. It should be noted that each air spring air passage 1282 is provided with a third control valve 12821, and each third control valve 12821 is independently controlled, that is, the independent on-off of multiple air spring air passages 1282 is realized, thereby improving the flexibility of air distribution.

[0083] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The surface of the main body 11 is provided with an air tank inlet and outlet 116 for connecting the air tank 2, so that the air tank 2 can be filled with air or discharged with air through the air tank inlet and outlet 116. The multiple air passages 12 include a third air passage 125, one end of which is in communication with the air tank inlet and outlet 116, so that air can flow from the air tank 2 into the main body 11, and also so that air can be filled into the air tank 2 from the main body 11. The other end of the third air passage 125 is in communication with the second switching air passage 122, so that the air tank 2 can be in communication with the air spring inlet and outlet 115, the air compression inlet 111, the air compression outlet 112, etc. Whether it is in communication depends on the control valves on each air passage.

[0084] Furthermore, a fourth control valve 1251 is provided on the third air channel 125 for controlling the opening and closing of the third air channel 125 .

[0085] In some embodiments, the multiple air passages 12 also include a fourth air passage 126, one end of the fourth air passage 126 is connected to the second air passage 124, and the other end is connected to both the third air passage 125 and the second switching air passage 122, so that the increased air can be filled into the air storage tank 2 and can also be discharged into the air spring inlet and outlet group.

[0086] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The plurality of air passages 12 further include a fifth air passage 127, one end of the fifth air passage 127 is in communication with the first switching air passage 121, and the other end is in communication with the third air passage 125. The fifth air passage 127 is provided with a fifth control valve 1271 for controlling the opening and closing of the fifth air passage 127. The air inlet and outlet 116 of the air storage tank can be directly in communication with the first switching air passage 121 through the third air passage 125 and the fifth air passage 127, so that the air in the air storage tank 2 can directly enter the air spring air inlet group, and then inflate the air spring assembly 4.

[0087] Furthermore, a dryer 1261 is provided on the fifth air passage 127 for drying the air to prevent moisture in the air from affecting the control valve and the air spring 41 .

[0088] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 , a pressure sensor port 117 is provided on the surface of the main body 11, and a thread is provided on the inner wall of the pressure sensor port 117. The main body 11 is provided with a pressure sensor 17 through the pressure sensor port 117. Specifically, the pressure sensor 17 is threadedly connected to the pressure sensor port 117. The monitoring end of the pressure sensor 17 is located in the main air passage 1281 of the air spring, and is used to monitor the pressure of the air that is about to enter the air spring assembly 4, so as to judge the pressure of the air discharged from the air tank 2 and the pressure of the air discharged from the air spring assembly 4 at this time according to the pressure, so as to facilitate the adjustment of the subsequent multiple control valves, so as to pressurize the air at the appropriate time and inflate the air tank 2 or the air spring 41. The pressure sensor 17 mainly serves the air path distribution assembly 1 in the closed passage mode, because the air path distribution assembly 1 in the closed passage mode needs to monitor the air pressure in real time to change the circulation path of the air.

[0089] It should be noted that the control valves described in any of the aforementioned embodiments, including the first control valve 13, the second control valve 15, the third control valve 12821, the fourth control valve 1251 and the fifth control valve 1271, all adopt solenoid valves to facilitate real-time control.

[0090] In some embodiments, a plurality of joints are provided on the surface of the main body 11, including an air output joint, an air input joint, an air tank inlet and outlet joint, an air compression inlet joint, an air compression outlet joint, a plurality of air spring inlet and outlet joints, and a pressure sensor hole. Among them, one end of the air output joint is threadedly connected to the air output hole, and the other end is connected to the outside air. One end of the air input joint is threadedly connected to the air input port 113, and the other end is connected to the outside air. One end of the air tank inlet and outlet joint is threadedly connected to the air tank inlet and outlet 116, and the other end is used to connect to the air tank 2. One end of the air compression inlet joint is threadedly connected to the air compression inlet 111, and the other end is used to connect to the air compression assembly 3. One end of the air compression outlet joint is threadedly connected to the air compression outlet 112, and the other end is used to connect to the air compression assembly 3. One end of the plurality of air spring inlet and outlet joints is threadedly connected to the air spring inlet and outlet 115 one by one, and the other end is used to connect to the air springs respectively. The pressure sensor hole is threadedly connected to the pressure sensor 17.

[0091] In some embodiments, a heat sink 118 is provided on one side of the main body 11 away from the multiple joints to dissipate heat for the airway passage 12 in the airway distribution assembly 1 and various control valves, one-way valves 1231, normally closed solenoid valves 1241 and other devices provided on the airway passage 12.

[0092] In some embodiments, see Figure 1 , Figure 2 and Figure 7 , when the air distribution assembly 1 is in the closed passage mode, the air distribution assembly 1 includes a first control mode and a second control mode. When the air distribution assembly 1 is in the first control mode or the second control mode, the second control valve 15, the third control valve 12821 and the fourth control valve 1251 are all in an open state, the first control valve 13 and the fifth control valve 1271 are all in a closed state, and the air tank inlet and outlet 116 are connected to the third air channel 125, the second switching air channel 122, the air spring air channel group 128 and the air spring inlet and outlet group in sequence. It should be noted that although the first control mode and the second control mode control the same control valve on and off, the air flow direction in the air channel 12 is not the same.

[0093] Specifically, when the air distribution assembly 1 is in the first control mode, the air pressure in the air tank 2 is higher than the air pressure of the air spring 41 in the air spring assembly 4, and the air tank 2 inflates the air spring 41 normally. The air flows out of the air tank 2, flows into the third flow channel through the air tank air inlet and outlet 116, flows into the second switching air channel 122 through the third air channel 125, and then flows into the air spring main air channel 1281. The air is distributed to each air spring branch air channel 1282 through the air spring main air channel 1281, flows out of the air spring air inlet and outlet 115 through the air spring branch air channel 1282, and finally fills into the air spring 41 to achieve the lifting and lowering of the air spring 41. When the air distribution assembly 1 is in the second control mode, the pressure in the air spring 41 is greater than the air pressure of the air tank 2, which is a process of the air spring 41 inflating the air tank 2. The air spring 41 in the air spring assembly 4 is exhausted and flows into the air spring branch airway 1282 through the air spring air inlet and outlet 115, and then flows into the air spring main airway 1281 through the air spring branch airway 1282. The air in the air spring main airway 1281 gathers the air of multiple air spring branch airways 1282 and flows into the second switching airway 122, and then flows through the third airway 125, and finally is filled into the air tank 2 through the air tank air inlet and outlet 116.

[0094] It should be noted that the implementation basis of the second control mode of the aforementioned first control mode, that is, the first control mode will be performed before the second control mode. Before the first control mode, the air compression assembly 3 needs to be connected to the air path distribution assembly 1, and the air compression assembly 3 sucks in the outside air through the air compression air inlet 111 and the air input port 113, and compresses and pressurizes the air, and then discharges it into the fourth air duct 126 through the air compression air outlet 112. The air in the fourth air duct 126 will pass through the dryer 1261 to dry, and then pass through the third air duct 125 and the air tank inlet and outlet 116 to complete the inflation and pressurization of the air tank 2, and then the first control mode can be performed, that is, the process of the air tank 2 inflating the air spring assembly 4.

[0095] In some embodiments, see Figure 1 , Figure 2 and Figure 7When the air distribution assembly 1 is in the closed passage mode, the air distribution assembly 1 includes a third control mode. When the air distribution assembly 1 is in the third control mode, the second control valve 15, the third control valve 12821 and the fifth control valve 1271 are all in an open state, the first control valve 13 and the fourth control valve 1251 are all in a closed state, and the air tank inlet and outlet 116 are sequentially connected with the third air channel 125, the fifth air channel 127, the air compression assembly 3, the fourth air channel 126, the second switching air channel 122, the air spring air channel group 128 and the air spring inlet and outlet group. The third control mode is used for the situation that the air pressure of the air tank 2 is low and the air needs to be pressurized by the air compression assembly 3. After the air is pressurized, the pressurized air is used to inflate the air spring assembly 4. Specifically, the low-pressure air in the air tank 2 enters the third air duct 125 through the air tank air inlet and outlet 116, enters the fifth air duct 127 through the third air duct 125, and enters the compressed air assembly through the fifth air duct 127. The compressed air assembly pressurizes the air and then inputs it into the fourth air duct 126 through the air compression air inlet 111, enters the second switching air duct 122 through the fourth air duct 126, and finally flows into the air spring assembly 4 through the air spring air inlet and outlet group, thereby realizing the inflation of the air spring assembly 4.

[0096] In some embodiments, see Figure 1 , Figure 2 and Figure 7 When the air distribution assembly 1 is in the closed passage mode, the air distribution assembly 1 includes a fourth control mode. When the air distribution assembly 1 is in the fourth control mode, the first control valve 13, the third control valve 12821 and the fourth control valve 1251 are all in an open state, the second control valve 15 and the fifth control valve 1271 are all in a closed state, and the air spring inlet and outlet group is sequentially connected with the air spring air channel group 128, the first switching air channel 121, the air compression assembly 3, the fourth air channel 126, the third air channel 125 and the air tank inlet and outlet 116. The fourth control mode is used for the situation where the air pressure of the air spring assembly 4 is low and the air tank 2 needs to be inflated. Specifically, the air spring assembly 4 enters the air spring branch airway 1282 through the air spring air inlet and outlet group, then enters the air spring main airway 1281 through the air spring branch airway 1282, and then enters the air compression assembly 3 through the first switching airway 121. The air compression assembly 3 pressurizes the air, and then inputs the pressurized air into the third airway 125 through the second airway 124 and the fourth airway 126, and then enters the air tank 2 through the third airway 125 and the air tank inlet and outlet 116, completing the inflation of the air tank 2. It should be noted that when the air flows through the fourth airway 126, it can also be affected by the dryer 1261 to dry the air to prevent the moisture in the air from affecting the control valve and the like.

[0097] In some embodiments, see Figure 1 , Figure 2 and Figure 7 When the air tank 2 needs to be exhausted, the air tank 2 is connected to the air tank air inlet and outlet 116, and the fourth control valve 1251 and the normally closed solenoid valve 1241 are opened, so that the air in the air tank 2 can be discharged to the outside of the air distribution assembly 1 through the third air channel 125, the fourth air channel 126, the second air channel 124 and the air outlet 114. When the air spring assembly 4 needs to be exhausted, the third control valve 12821 is opened, and the air exhausted from the air spring assembly 4 flows through the air spring air channel group 128, and the second control valve 15 is opened, so that the air flows from the air spring air channel group 128 through the second switching air channel 122, and then flows from the second switching air channel 122 through the fourth air channel 126, and the normally closed solenoid valve 1241 is opened, and the air in the fourth air channel 126 flows through the second air channel 124, and then is discharged from the air distribution assembly 1 from the air outlet 114.

[0098] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the air path distribution assembly 1 is in the open passage mode, the air path distribution assembly 1 includes a fifth control mode. When the air path distribution assembly 1 is in the fifth control mode, the third control valve 12821 and the fourth control valve 1251 are in an open state, the fifth control valve 1271 is in a closed state, and the air tank inlet and outlet 116 is connected with the third air channel 125, the second switching air channel 122, the air spring air channel group 128 and the air spring inlet and outlet group in sequence. The fifth control mode is used for the case where the air pressure of the air tank 2 is higher than the air pressure of the air spring assembly 4, that is, the normal case where the air tank 2 inflates the air spring assembly 4. It should be noted that before the fifth control mode is carried out, the air compression assembly 3 needs to be connected to the air path distribution assembly 1. The air compression assembly 3 sucks in the outside air through the air compression inlet 111 and the air input port 113, compresses and pressurizes the air, and then discharges it into the fourth air duct 126 through the air compression outlet 112. The air will pass through the dryer 1261 in the fourth air duct 126, and then pass through the third air duct 125 and the air tank inlet and outlet 116 to complete the inflation and pressurization of the air tank 2. The specific flow path of air in the fifth control mode is as follows: the air tank 2 inputs air into the third air duct 125 through the air tank air inlet and outlet 116, and then flows from the third air duct 125 into the second switching air duct 122 which is always kept open, and then flows from the second switching air duct 122 into the air spring main air duct 1281, and then is distributed to multiple air spring branch air ducts 1282 through the air spring main air duct 1281, and then the air flows out from the air spring branch air duct 1282 into the air spring 41, completing the inflation of the air spring 41.

[0099] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the gas circuit distribution assembly 1 is in the open passage mode, the gas circuit distribution assembly 1 includes an open gas tank exhaust mode. When the gas circuit distribution assembly 1 is in the open gas tank exhaust mode, the normally closed solenoid valve 1241 and the fourth control valve 1251 are in an open state, the third control valve 12821 and the fifth control valve 1271 are in a closed state, and the gas tank inlet and outlet 116 are connected with the third air channel 125, the fourth air channel 126, the second air channel 124 and the air output port 114 in sequence. The open gas tank exhaust mode is used to exhaust the gas tank 2. The specific flow direction of air is as follows: the air of the gas tank 2 is input into the third air channel 125 through the gas tank inlet and outlet 116, and then flows into the fourth air channel 126 through the third air channel 125, and then flows into the second air channel 124, and then discharged from the gas circuit distribution assembly 1 from the air output port 114.

[0100] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the air path distribution assembly 1 is in the open passage mode, the air path distribution assembly 1 includes an open air spring exhaust mode. When the air path distribution assembly 1 is in the open air spring exhaust mode, the third control valve 12821 and the normally closed solenoid valve 1241 are both in an open state, the fourth control valve 1251 and the fifth control valve 1271 are in a closed state, and the air spring inlet and outlet port group is sequentially connected with the air spring air channel group 128, the second switching air channel 122, the fourth air channel 126, the second air channel 124 and the air output port 114. The open air spring exhaust mode is used for exhausting the air spring. The specific air flow direction is as follows: the air of the air spring assembly 4 enters the air spring branch airway 1282 through the air spring air inlet and outlet 115, and then enters the air spring main airway 1281 through the air spring branch airway 1282. The air flows from the air spring main airway 1281 through the second switching airway 122, the fourth airway 126 and the second airway 124 in sequence, and finally is discharged from the air path distribution assembly 1 through the air output port 114.

[0101] In summary, it can be known from the above embodiments that one of the first control valve 13 and the first blocking piece 14 can be selectively set on the first switching air channel 121, and one of the second control valve 15 and the second blocking piece 16 can be selectively set on the second switching air channel 122, so that the first switching air channel 121 and the second switching air channel 122 can achieve both the air channel connection required for the closed passage mode and the air channel connection required for the open passage mode, thereby improving the versatility of the air path distribution assembly 1, so that the air path distribution assembly 1 can be applied to both open air suspension systems and closed air suspension systems, and there is no need to re-open the mold and design the air path distribution assembly 1 due to the replacement of different air suspension systems, which is beneficial to reducing the manufacturing cost of the air path distribution assembly 1 and shortening the manufacturing period of different air suspension systems.

[0102] According to the second aspect disclosed in this application, see Figure 7 and Figure 8 , an air suspension system is provided, the air suspension system includes an air tank 2, an air compression assembly 3, an air spring assembly 4, and the air path distribution assembly 1 described in any of the above embodiments. The air tank 2, the air compression assembly 3, and the air spring assembly 4 are all connected to the air path distribution assembly 1, and then the air flow path is controlled by the cooperation of the air channel and the control valve in the air path distribution assembly 1, thereby realizing multiple modes of the air suspension system. Because the air suspension system has all the structures and beneficial effects of the above-mentioned air path distribution assembly 1, this embodiment will not be repeated here.

[0103] It should be noted that the air compression assembly 3 is a compressor 31 with a multi-stage compression cylinder, which is a prior art, and the specific structure of the compressor 31 will not be repeated here. A power limiting valve 32 can also be set on the compressor 31 to adapt to the working conditions of the current air suspension system to avoid power waste. In addition, an external air filling port 21 of the air storage tank is also provided on the air storage tank 2, so that the air storage tank 2 can be directly connected to an external device to complete the filling without relying on the air compression assembly 3. The air spring assembly 4 includes a plurality of air springs 41, and each air spring 41 is connected to an air spring inlet and outlet 115. When the air suspension system is applied to a vehicle, the number of air springs 41 is set to four, corresponding to the four tires of the vehicle, that is, one air spring 41 is set close to one tire, so that the air suspension system can automatically adjust the height and hardness of the suspension according to the vehicle speed, road conditions and vehicle load, thereby effectively absorbing the impact caused by uneven road surface, reducing the vibration of the vehicle body, and providing a smoother driving.

[0104] According to the third aspect disclosed in the present application, a vehicle is provided, which includes the air distribution assembly 1 described in any of the above embodiments or includes the air suspension system described in any of the above embodiments, and the vehicle has all the beneficial effects of the above-mentioned air distribution assembly 1 or the air suspension system, which will not be repeated in the present disclosure.

[0105] It is understandable that the vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and the present disclosure does not make any specific limitation on this.

[0106] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0107] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0108] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0109] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A gas distribution assembly, characterized in that: The gas path distribution assembly (1) has a closed path mode and an open path mode, and the gas path distribution assembly (1) comprises: A main body (11), wherein a plurality of air passages (12) are arranged in the main body (11), wherein the plurality of air passages (12) include a first switching air passage (121) and a second switching air passage (122), wherein two ends of the first switching air passage (121) are respectively used to communicate with an air spring assembly (4) and an air compression assembly (3) of an air suspension system, and two ends of the second switching air passage (122) are respectively used to communicate with an air storage tank (2) and the air spring assembly (4) of the air suspension system; When the gas path distribution assembly (1) is in the closed passage mode, a first control valve (13) is provided on the first switching gas channel (121) for controlling the on and off of the first switching gas channel (121), and a second control valve (15) is provided on the second switching gas channel (122) for controlling the on and off of the second switching gas channel (122); When the air path distribution assembly (1) is in the open passage mode, a first blocking member (14) is provided on the first switching airway (121) for disconnecting the first switching airway (121), and a second blocking member (16) is provided on the second switching airway (122), the second blocking member blocks the installation position of the second control valve on the second switching airway and avoids the flow path of the second switching airway (122), so that the second switching airway is conductive.

2. The gas distribution assembly according to claim 1, characterized in that: The inner wall of the first switching air channel (121) is provided with a first installation opening (1211), and either the first control valve (13) or the first blocking member (14) is installed in the first installation opening (1211).

3. The gas distribution assembly according to claim 2, characterized in that: The first installation opening (1211) comprises a first installation sub-opening (12111) and a second installation sub-opening (12112) which are arranged opposite to each other; When the first switching air channel (121) is provided with the first control valve (13), the first control valve (13) passes through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and is sealed and fixed; When the first switching airway (121) is provided with the first blocking piece (14), the first blocking piece (14) passes through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and blocks the first switching airway (121).

4. The gas distribution assembly according to claim 3, characterized in that: The first blocking member (14) includes a first sealing component (141) and a first blocking body (142); the first blocking body (142) is passed through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and blocks the first switching airway (121); the first sealing component (141) abuts between the first blocking body (142) and the inner wall of the first mounting sub-opening (12111) and between the first blocking body (142) and the inner wall of the second mounting sub-opening (12112).

5. The gas distribution assembly according to claim 4, characterized in that: The first sealing assembly (141) includes a first sealing ring (1411) and a second sealing ring (1412), and the first sealing ring (1411) and the second sealing ring (1412) are both mounted on the first blocking body (142), and the first sealing ring (1411) abuts against the inner wall of the first mounting sub-opening (12111) and the first blocking body (142), and the second sealing ring (1412) abuts against the inner wall of the second mounting sub-opening (12112) and the first blocking body (142).

6. The gas distribution assembly according to claim 1, characterized in that: The inner wall of the second switching air channel (122) is provided with a second installation opening (1221), and either the second control valve (15) or the second blocking member (16) is installed in the second installation opening (1221).

7. The gas distribution assembly according to claim 6, characterized in that: When the second switching air passage (122) is provided with the second control valve (15), the second control valve (15) passes through the second mounting opening (1221) and is sealed and fixed; When the second switching airway (122) is provided with the second blocking member (16), the second blocking member (16) blocks the second mounting opening (1221), and the second switching airway (122) is a passage.

8. The gas distribution assembly according to claim 7, characterized in that: The second sealing member (16) comprises a second sealing body (161) and a third sealing ring (162), wherein the third sealing ring (162) is sleeved on the second sealing body (161), and the second sealing body (161) seals the second installation opening (1221), and the second sealing ring (1412) abuts between the inner wall of the second installation opening (1221) and the second sealing body (161).

9. The gas distribution assembly according to any one of claims 1 to 8, characterized in that: The surface of the main body (11) is provided with an air compression inlet (111) and an air compression outlet (112) which are connected to the first switching air channel (121); the air compression inlet (111) is used to communicate with the input end of the air compression assembly (3), and the air compression outlet (112) is used to communicate with the output end of the air compression assembly (3).

10. The gas distribution assembly according to claim 9, characterized in that: An air inlet (113) and an air outlet (114) are provided on the surface of the main body (11), and the plurality of air passages (12) include a first air passage (123) and a second air passage (124); One end of the first air channel (123) is in communication with the air input port (113), and the other end is in communication with both the first switching air channel (121) and the compressed air inlet port (111); One end of the second air channel (124) is in communication with the air output port (114), and the other end is in communication with the compressed air outlet port (112).

11. The gas distribution assembly according to claim 10, characterized in that: The first air passage (123) is provided with a one-way valve (1231), and the second air passage (124) is provided with a normally closed electromagnetic valve (1241).

12. The gas distribution assembly according to claim 11, characterized in that: An air spring air inlet and outlet (115) group is provided on the surface of the main body (11), and the plurality of air passages (12) include an air spring air passage group (128). The air spring air inlet and outlet (115) group is used to communicate with the air spring assembly (4), and the air spring air inlet and outlet (115) group is connected to both the first switching air passage (121) and the second switching air passage (122) through the air spring air passage group (128).

13. The gas distribution assembly according to claim 12, characterized in that: The air spring air inlet and outlet (115) group comprises a plurality of air spring air inlet and outlet (115), and the plurality of air spring air inlet and outlet (115) are respectively used to communicate with the air spring assembly (4); The air spring air channel group (128) includes an air spring main air channel (1281) and multiple air spring branch air channels (1282), and the multiple air spring branch air channels (1282) are respectively connected to the first switching air channel (121) and the second switching air channel (122) through the air spring main air channel (1281), and the ends of the multiple air spring branch air channels (1282) away from the air spring main air channel (1281) are respectively connected to the multiple air spring air inlets and outlets (115).

14. The gas distribution assembly according to claim 13, characterized in that: The air spring air passage (1282) is provided with a third control valve (12821) for controlling the opening and closing of the air spring air passage (1282).

15. The gas distribution assembly according to claim 14, characterized in that: The surface of the main body (11) is provided with an air inlet and outlet (116) of the air storage tank (2) for connecting the air storage tank (2); The plurality of air passages (12) include a third air passage (125), one end of the third air passage (125) being in communication with the air inlet and outlet (116) of the air storage tank (2), and the other end of the third air passage (125) being in communication with the second switching air passage (122).

16. The gas distribution assembly according to claim 15, characterized in that: The third air channel (125) is provided with a fourth control valve (1251) for controlling the opening and closing of the third air channel (125).

17. The gas distribution assembly according to claim 16, characterized in that: The plurality of airway passages (12) further include a fourth airway (126), one end of the fourth airway (126) being connected to the second airway (124), and the other end of the fourth airway (126) being connected to both the third airway (125) and the second switching airway (122).

18. The gas distribution assembly according to claim 17, characterized in that: The multiple air passages (12) also include a fifth air passage (127), one end of the fifth air passage (127) is connected to the first switching air passage (121), and the other end is connected to the third air passage (125), and a fifth control valve (1271) is provided on the fifth air passage (127) for controlling the opening and closing of the fifth air passage (127).

19. The gas distribution assembly according to claim 18, characterized in that: When the air path distribution assembly (1) is in a closed passage mode, the air path distribution assembly (1) includes a first control mode and a second control mode. When the air path distribution assembly (1) is in the first control mode or the second control mode, the second control valve (15), the third control valve (12821) and the fourth control valve (1251) are all in an open state, the first control valve (13) and the fifth control valve (1271) are all in a closed state, and the air inlet and outlet (116) of the air storage tank (2) are connected to the third air channel (125), the second switching air channel (122), the air spring air channel group (128) and the air spring air inlet and outlet (115) group in sequence.

20. The gas distribution assembly according to claim 18, characterized in that: When the air path distribution assembly (1) is in the closed passage mode, the air path distribution assembly (1) includes a third control mode. When the air path distribution assembly (1) is in the third control mode, the second control valve (15), the third control valve (12821) and the fifth control valve (1271) are all in an open state, the first control valve (13) and the fourth control valve (1251) are all in a closed state, and the air inlet and outlet (116) of the air storage tank (2) are sequentially connected to the third air channel (125), the fifth air channel (127), the air compression assembly (3), the fourth air channel (126), the second switching air channel (122), the air spring air channel group (128) and the air spring air inlet and outlet (115) group.

21. The gas distribution assembly according to claim 18, characterized in that: When the air path distribution assembly (1) is in a closed passage mode, the air path distribution assembly (1) includes a fourth control mode. When the air path distribution assembly (1) is in the fourth control mode, the first control valve (13), the third control valve (12821) and the fourth control valve (1251) are all in an open state, the second control valve (15) and the fifth control valve (1271) are all in a closed state, and the air spring air inlet and outlet (115) group is sequentially connected to the air spring air channel group (128), the first switching air channel (121), the air compression assembly (3), the fourth air channel (126), the third air channel (125) and the air storage tank (2) air inlet and outlet (116).

22. The gas distribution assembly according to claim 18, characterized in that: When the air path distribution assembly (1) is in an open passage mode, the air path distribution assembly (1) includes a fifth control mode. When the air path distribution assembly (1) is in the fifth control mode, the third control valve (12821) and the fourth control valve (1251) are in an open state, the fifth control valve (1271) is in a closed state, and the air inlet and outlet (116) of the air storage tank (2) are sequentially connected to the third air channel (125), the second switching air channel (122), the air spring air channel group (128) and the air spring air inlet and outlet (115) group.

23. The gas distribution assembly according to claim 18, characterized in that: When the gas path distribution assembly (1) is in an open passage mode, the gas path distribution assembly (1) includes an open gas tank (2) exhaust mode. When the gas path distribution assembly (1) is in the open gas tank (2) exhaust mode, the normally closed solenoid valve (1241) 1241 and the fourth control valve (1251) are in an open state, the third control valve (12821) and the fifth control valve (1271) are in a closed state, and the gas inlet and outlet (116) of the gas tank (2) are sequentially connected to the third air channel (125), the fourth air channel (126), the second air channel (124) and the air output port (114).

24. The gas distribution assembly according to claim 18, characterized in that: When the air path distribution assembly (1) is in an open passage mode, the air path distribution assembly (1) includes an open air spring exhaust mode. When the air path distribution assembly (1) is in the open air spring exhaust mode, the third control valve (12821) and the normally closed solenoid valve (1241) 1241 are both in an open state, the fourth control valve (1251) and the fifth control valve (1271) are in a closed state, and the air spring air inlet and outlet (115) group is sequentially connected to the air spring air channel group (128), the second switching air channel (122), the fourth air channel (126), the second air channel (124) and the air output port (114).

25. An air suspension system, characterized in that: include: Gas tank (2); Air compression assembly (3); Air spring assembly (4); as well as According to the air distribution assembly as described in any one of claims 1 to 24, the air storage tank (2), the air compression assembly (3) and the air spring assembly (4) are all connected to the air distribution assembly (1).

26. A vehicle, characterized in that: It comprises the air distribution assembly as described in any one of claims 1 to 24 or the air suspension system as described in claim 25.

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