Valve for air suspension system

Abstract

The utility model relates to the technical field of automobile parts, and provides a valve for an air suspension system, which comprises an air inlet and an air inlet cavity which are separated from each other, and the air inlet cavity leads to an air outlet of the valve for the air suspension system through a valve cavity of the valve for the air suspension system; the inflation valve is arranged in a path from the air inlet to the air inlet cavity, the inflation valve comprises an air path plate, the air path plate is provided with a first air path and a second air path, the first air path is communicated with the air inlet, and the second air path is communicated with the air inlet cavity; and the sealing assembly is assembled with the gas circuit board, and the sealing assembly can open a communication space communicating the first gas circuit and the second gas circuit under the action of the gas pressure of the first gas circuit and seal the communication space in a natural state. According to the valve for the air suspension system, the air inlet and the air inlet cavity of the valve are separated, and the inflation valve is arranged between the air inlet and the air inlet cavity, so that enough air supply pressure is ensured to be conveyed to the air inlet cavity; the inflation valve is integrally arranged in the valve piece, so that the stability of an air path is ensured, and the pipeline connection of the valve piece is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and more specifically, to a valve component for an air suspension system. Background Art

[0002] In an air suspension system, a suspension valve such as a solenoid valve is used to supply air to an airbag. To ensure sufficient gas pressure supply to the airbag, a pressure regulating valve capable of increasing the pressure needs to be connected to the front end of the suspension valve to accumulate the gas pressure to an appropriate size and then transport it to the suspension valve.

[0003] This method of additionally arranging a pressure regulating valve at the front end of the suspension valve has problems such as inconvenient assembly and complex pipeline connection.

[0004] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present utility model, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In view of this, the present utility model provides a valve component for an air suspension system, in which an inflation valve is arranged between the air inlet and the air inlet chamber of the valve component to ensure sufficient air supply pressure is transported to the air inlet chamber; the inflation valve of the present utility model is integrally arranged inside the valve component, without the need for additional installation outside the valve component, ensuring stable air paths and not affecting the pipeline connection of the valve component.

[0006] According to one aspect of the present utility model, there is provided a valve component for an air suspension system, including: a separated air inlet and an air inlet chamber, the air inlet chamber leads to the air outlet of the valve component for the air suspension system through the valve chamber of the valve component for the air suspension system; an inflation valve arranged in the path from the air inlet to the air inlet chamber, the inflation valve including: an air path plate provided with a first air path and a second air path, the first air path communicating with the air inlet, the second air path communicating with the air inlet chamber; a sealing assembly assembled with the air path plate, the sealing assembly can be opened under the action of the air pressure in the first air path to connect the communication space between the first air path and the second air path, and close the communication space in the natural state.

[0007] In some embodiments, the air inlet and the air inlet chamber are arranged in a valve body, and the valve body is provided with a first channel connecting the air inlet and the first air path, and a second channel connecting the second air path and the air inlet chamber.

[0008] In some embodiments, the air path plate has two opposite surfaces, wherein the first surface is assembled with the valve body, and the second surface cooperates with the sealing assembly; the first air path extends on the first surface and leads from the first surface to the second surface, and the second air path leads from the second surface to the first surface and extends on the first surface.

[0009] In some embodiments, the first gas path extends in a curved manner on the first surface, and the second gas path extends linearly on the first surface.

[0010] In some embodiments, the inflation valve further includes: a connecting plate, assembled between the valve body and the gas path plate, and the connecting plate is provided with a first connecting hole communicating the first channel and the first gas path, and a second connecting hole communicating the second gas path and the second channel.

[0011] In some embodiments, between the first channel and the first connecting hole, between the first connecting hole and the first gas path, between the second gas path and the second connecting hole, and between the second connecting hole and the second channel, they are all sealed and fitted through a sealing gasket.

[0012] In some embodiments, the valve member for the air suspension system further includes: a check valve, disposed in the second channel, and the check valve can conduct the second channel under the action of the air pressure in the second gas path and cut off the second channel in the initial state.

[0013] In some embodiments, a check cavity is provided in the second channel, and the check valve has a conical portion assembled in the check cavity and a pre-tightened elastic portion; in the initial state, the elastic portion pushes the conical portion to seal and abut against the port of the check cavity; under the action of the air pressure in the second gas path, the conical portion overcomes the thrust of the elastic portion and leaves the port of the check cavity.

[0014] In some embodiments, the sealing assembly includes a sealing gasket and a pre-tightened elastic member; in the natural state, the elastic member pushes the sealing gasket to seal and abut against the gas path plate; under the action of the air pressure in the first gas path, the sealing gasket overcomes the thrust of the elastic member and leaves the gas path plate, and a communication space is formed between the gas path plate and the sealing gasket.

[0015] In some embodiments, the elastic member is installed in the pre-tightening cavity of the assembly seat, the sealing gasket is embedded in the end face of the gas path plate and presses on the elastic member and the end face of the pre-tightening cavity, and the assembly seat is hermetically assembled with the gas path plate and presses the edge of the sealing gasket.

[0016] In some embodiments, one end of the elastic member away from the sealing gasket is supported on the bottom of the pre-tightening cavity through an adjusting bolt.

[0017] In some embodiments, a filter core mesh is provided at the air inlet.

[0018] The beneficial effects of the present utility model compared with the prior art at least include:

[0019] In the present utility model, the air inlet of the valve component for the air suspension system is separated from the air inlet chamber, and an inflation valve is provided in the path from the air inlet to the air inlet chamber; the inflation valve is provided with a first air path communicating with the air inlet and a second air path communicating with the air inlet chamber through an air circuit board, and realizes the conduction of the first air path and the second air path under the action of the air pressure in the first air path through a sealing component assembled with the air circuit board. When the air pressure in the first air path does not reach the set pressure, the sealing component closes the communication space between the first air path and the second air path to ensure that the pressure delivered to the air inlet chamber meets the air supply pressure requirement.

[0020] The inflation valve of the present utility model is integrally provided in the valve component for the air suspension system, without the need for additional installation outside the valve component, ensuring the stability of the air circuit and not affecting the pipeline connection of the valve component.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings here are incorporated into the specification and form a part of the specification, showing embodiments in line with the present utility model, and are used together with the specification to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Showing a schematic cross-sectional structure diagram of the valve component for the air suspension system in an embodiment of the present utility model;

[0024] Figure 2 Showing a schematic external structure diagram of the valve component for the air suspension system in an embodiment of the present utility model;

[0025] Figure 3 Showing a schematic connection structure diagram between the air inlet and the first air duct in an embodiment of the present utility model;

[0026] Figure 4 Showing an exploded structure diagram of the components related to the inflation valve in an embodiment of the present utility model;

[0027] Figure 5 Showing an exploded structure diagram of the check valve in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to make the present utility model more comprehensive and complete, and to fully convey the concept of the example embodiments to those skilled in the art.

[0029] The accompanying drawings are only schematic illustrations of the present utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.

[0030] The terms "first", "second" and similar terms used in the specific description do not denote any order, quantity or importance, but are only used to distinguish different components. The orientation or positional relationship indicated by terms such as "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, in the description of the present utility model, when it is said that a certain device is "connected" to another device, this includes not only the case of direct connection, but also the case of indirect connection through other elements.

[0031] It should be noted that, without conflict, the features in the embodiments of the present utility model and in different embodiments can be combined with each other.

[0032] Figure 1 Schematically showing the sectional structure of the valve member for the air suspension system, Figure 2 Schematically showing the external structure of the valve member for the air suspension system, Figure 3 Schematically showing the connection structure between the air inlet and the first air passage, Figure 4 Schematically showing the exploded structure of the components related to the inflation valve; in combination with Figures 1 to 4 As shown, the valve member for the air suspension system provided by the embodiment of the present utility model includes:

[0033] Spaced air inlets 11 and an air inlet chamber 12, wherein the air inlet chamber 12 leads to the air outlet 600 of the valve member for the air suspension system through the valve chamber ( Figure 2 The approximate position 500 of the valve chamber is marked in

[0034] An inflation valve 30 provided in the path from the air inlet 11 to the air inlet chamber 12, and the inflation valve 30 includes:

[0035] An air path plate 31 provided with a first air path 311 and a second air path 312, the first air path 311 communicating with the air inlet 11, and the second air path 312 communicating with the air inlet chamber 12;

[0036] The sealing assembly 32 is assembled with the air circuit board 31. The sealing assembly 32 can be opened under the air pressure of the first air circuit 311 to connect the communication space between the first air circuit 311 and the second air circuit 312, and can close the communication space in the natural state.

[0037] In the utility model, the air inlet 11 and the air inlet chamber 12 of the valve component for the air suspension system are separated, and an inflation valve 30 is arranged in the path from the air inlet 11 to the air inlet chamber 12; the inflation valve 30 is arranged through the air circuit board 31 to respectively connect the first air circuit 311 communicating with the air inlet 11 and the second air circuit 312 communicating with the air inlet chamber 12, and through the sealing assembly 32 assembled with the air circuit board 31, it is realized that the first air circuit 311 and the second air circuit 312 are conducted under the air pressure of the first air circuit 311, and when the air pressure of the first air circuit 311 does not reach the set pressure, the sealing assembly 32 closes the communication space between the first air circuit 311 and the second air circuit 312 to ensure that the pressure delivered to the air inlet chamber 12 meets the air supply pressure requirement.

[0038] The inflation valve 30 of the utility model is integrally arranged in the valve component for the air suspension system, without the need for additional installation outside the valve component, ensuring the stability of the air circuit and not affecting the pipeline connection of the valve component.

[0039] Among them, the valve component for the air suspension system can be an electromagnetic valve or other suitable types of valve components. The air outlet 600 of the valve component for the air suspension system is connected to the airbag; by integrally arranging the inflation valve 30 between the air inlet 11 and the air inlet chamber 12 of the valve component for the air suspension system, it is ensured that the pressure delivered to the air inlet chamber 12 meets the air supply pressure requirement, and further ensured that the valve component for the air suspension system supplies sufficient gas pressure to the airbag to realize the adjustment function of the air suspension system.

[0040] In some embodiments, the air inlet 11 and the air inlet chamber 12 are arranged in the valve body 10, and the valve body 10 is provided with a first channel 110 connecting the air inlet 11 and the first air circuit 311, and a second channel 120 connecting the second air circuit 312 and the air inlet chamber 12.

[0041] Through the first channel 110 and the second channel 120 of the valve body 10, the connection between the first air circuit 311 and the air inlet 11 and the connection between the second air circuit 312 and the air inlet chamber 12 are realized.

[0042] In some embodiments, the air circuit board 31 has two opposite surfaces, wherein the first surface 31a is assembled with the valve body 10, and the second surface 31b cooperates with the sealing assembly 32; the first air circuit 311 extends on the first surface 31a and leads from the first surface 31a to the second surface 31b, and the second air circuit 312 leads from the second surface 31b to the first surface 31a and extends on the first surface 31a.

[0043] The gas path board 31 cooperates with the valve body 10 and the sealing component 32 respectively through its opposite two sides. The first gas path 311 extends on the first side 31a and can store gas until the air pressure is sufficient to open the communication space. The second gas path 312 extends on the first side 31a and can adapt to the layout of the intake cavity 12 and extends near the intake cavity 12. The first gas path 311 and the second gas path 312 respectively form ports on the second side 31b to achieve connection and closure.

[0044] In other embodiments, a communication space may also be provided in the gas path board 31 and the sealing component 32 is arranged in the communication space. Similarly, the sealing component 32 can be opened under the air pressure of the first gas path 311 to open the communication space and close the communication space in the natural state. Or, the gas path board 31 can have other structures, as long as it can cooperate with the sealing component 32 to ensure that the pressure delivered to the intake cavity 12 meets the air supply pressure requirements.

[0045] In some embodiments, the first gas path 311 extends in a curved manner on the first side 31a, and the second gas path 312 extends in a straight line on the first side 31a.

[0046] The first gas path 311 extends in a curved manner on the first side 31a, which is convenient for storing air pressure to make the air pressure delivered to the rear end sufficient. The second gas path 312 extends in a straight line on the first side 31a, which is convenient for smoothly delivering gas to the intake cavity 12.

[0047] In some embodiments, the inflation valve 30 further includes: a connecting plate 33, which is assembled between the valve body 10 and the gas path board 31. The connecting plate 33 is provided with a first connection hole 331 connecting the first channel 110 and the first gas path 311, and a second connection hole 332 connecting the second gas path 312 and the second channel 120.

[0048] The connecting plate 33 serves as a connection transition between the valve body 10 and the gas path board 31, enabling the smooth connection and docking between the channels of the valve body 10 and the gas paths of the gas path board 31 through the connection holes of the connecting plate 33.

[0049] In some embodiments, between the first channel 110 and the first connection hole 331, between the first connection hole 331 and the first gas path 311, between the second gas path 312 and the second connection hole 332, and between the second connection hole 332 and the second channel 120, they are all sealed and fitted through sealing washers.

[0050] Specifically, a sealing fit can be achieved between the first channel 110 and the first connection hole 331 through the first sealing washer 51. The first sealing washer 51 can be embedded in the end face of the first connection hole 331 and press against the end face of the first channel 110. A sealing fit can be achieved between the first connection hole 331 and the first gas path 311, and between the second gas path 312 and the second connection hole 332, through the second sealing washer 52. The second sealing washer 52 can be embedded in the end faces of the first gas path 311 and the second gas path 312 and press against the end faces of the first connection hole 331 and the second connection hole 332. The second sealing washer 52 is formed as an integral sealing washer that fits the gas paths of the gas path plate 31 and the connection holes of the connection plate 33, which can increase the sealing stability and improve the sealing effect. A sealing fit can be achieved between the second connection hole 332 and the second channel 120 through a third sealing washer (not specifically shown in the figure). The third sealing washer can be embedded in the end face of the second connection hole 332 and press against the end face of the second channel 120.

[0051] In other embodiments, each sealing washer can be press-fitted between the two mating components in other suitable ways, as long as a sealing fit between the two components is achieved to avoid air leakage.

[0052] Figure 5 Schematically shows the exploded structure of the check valve; in combination Figures 1 to 5 As shown, in some embodiments, the valve member for the air suspension system further includes: a check valve 40 disposed in the second channel 120. The check valve 40 can conduct the second channel 120 under the air pressure of the second gas path 312 and cut off the second channel 120 in the initial state.

[0053] The check valve 40 is used to prevent the gas in the valve member from flowing back to the air supply system through the air inlet 11, causing air pressure fluctuations, and ensuring the stability of the gas delivered to the valve member. The check valve 40 has a one-way conduction function. Under the air pressure of the second gas path 312, the check valve 40 conducts the second channel 120 to facilitate the gas flow to the intake cavity 12; when there is no suitable gas pressure from the second gas path 312, the check valve 40 cuts off the second channel 120 to prevent gas from flowing back.

[0054] In some embodiments, a check cavity 44 is provided in the second channel 120. The check valve 40 has a conical portion 41 assembled in the check cavity 44 and a pre-tightened elastic portion 42; in the initial state, the elastic portion 42 pushes the conical portion 41 to seal and abut against the port of the check cavity 44; under the air pressure of the second gas path 312, the conical portion 41 overcomes the thrust of the elastic portion 42 and leaves the port of the check cavity 44.

[0055] Through the cooperation between the cone 41 and the pre-tightened elastic portion 42, the second channel 120 is opened under the action of the air pressure of the second air path 312, and the conduction air pressure of the second channel 120 is less than the opening air pressure of the connecting space, so as to ensure that the second channel 120 is smoothly opened when the valve is in the air intake state; if the air pressure of the second air path 312 does not reach the predetermined pressure, the cone 41 cannot be pushed to overcome the action of the elastic portion 42, so that the cone 41 is sealed and abuts against the port of the check chamber 44 under the action of the elastic portion 42.

[0056] The elastic portion 42 may be a spring, but is not limited thereto.

[0057] In some embodiments, the sealing assembly 32 includes a sealing gasket 321 and a pre-tightened elastic member 322; in a natural state, the elastic member 322 pushes the sealing gasket 321 to seal against the air circuit plate 31; under the action of the air pressure in the first air circuit 311, the sealing gasket 321 overcomes the thrust of the elastic member 322 and leaves the air circuit plate 31, and a connecting space is formed between the air circuit plate 31 and the sealing gasket 321.

[0058] By cooperating with the sealing gasket 321 and the pre-tightened elastic member 322, the connecting space is opened under the action of the air pressure of the first air circuit 311, so that the gas that meets the air supply pressure requirement is delivered to the air inlet chamber 12; if the air pressure of the first air circuit 311 does not reach the set pressure, the sealing gasket 321 cannot be pushed to overcome the action of the elastic member 322, so that the sealing gasket 321 is sealed against the air circuit plate 31 under the action of the elastic member 322 to close the connecting space.

[0059] In some embodiments, the elastic member 322 is installed in the pre-tightening cavity 324 of the assembly seat 323, the sealing gasket 321 is embedded in the end face of the air circuit plate 31, and covers the elastic member 322 and the end face of the pre-tightening cavity 324, the assembly seat 323 is sealed and assembled with the air circuit plate 31, and the edge of the sealing gasket 321 is pressed.

[0060] When the air pressure in the first air path 311 reaches the air supply pressure requirement, the sealing gasket 321 is pushed open and pushes the elastic member 322 to open the connecting space between the sealing gasket 321 and the air path plate 31. At this time, the edge of the sealing gasket 321 is pressed against the air path plate 31 by the assembly seat 323, so that the connecting space is opened while avoiding gas leakage and sealing the gas in the connecting space.

[0061] The elastic member 322 may be a spring, but is not limited thereto.

[0062] Furthermore, in some embodiments, one end of the elastic member 322 away from the sealing gasket 321 is supported on the bottom of the preload cavity 324 through an adjusting bolt 326 .

[0063] By adjusting the bolt 326, the compression force of the elastic member 322 can be adjusted, thereby adjusting the air pressure entering the intake chamber 12 to adapt to the requirements of different intake pressures.

[0064] In the above embodiments, the air inlet 11 and the intake chamber 12 are the original structures in the valve member. Among them, the air inlet 11 is connected to the air supply system, and a filter core mesh 111 can be provided at the air inlet 11 to filter the gas entering the valve member; the intake chamber 12 communicates with the valve chamber of the valve member.

[0065] In summary of the descriptions of the above embodiments, the gas flow process in the valve member for the air suspension system is as follows: The air supply system delivers gas to the air inlet 11; the gas is filtered by the air inlet 11 and then flows through the first channel 110 and the first connection hole 331 to the first gas path 311; at this time, if the thrust of the gas in the first gas path 311 on the sealing gasket 321 is greater than the acting force of the elastic member 322, the gas pushes open the sealing gasket 321 and enters the second gas path 312, otherwise the first gas path 311 and the second gas path 312 remain in a blocked state; then, the gas in the second gas path 312 enters the second channel 120 through the second connection hole 332. If the thrust of the gas in the second channel 120 on the cone portion 41 is greater than the acting force of the elastic portion 42, the gas pushes open the cone portion 41 and enters the intake chamber 12 through the check chamber 44, otherwise the cone portion 41 is hermetically abutted against the port of the check chamber 44 under the action of the elastic portion 42.

[0066] Through the above process, it is ensured that the pressure delivered to the intake chamber 12 meets the air supply pressure requirements and prevents gas backflow.

[0067] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A valve component for an air suspension system, characterized in that: include: An air inlet and an air inlet cavity are separated, wherein the air inlet cavity leads to an air outlet of the air suspension system valve member through a valve cavity of the air suspension system valve member; An air charging valve is provided in a path from the air inlet to the air inlet cavity, the air charging valve comprising: An air path plate, provided with a first air path and a second air path, wherein the first air path is connected to the air inlet, and the second air path is connected to the air inlet cavity; A sealing component is assembled with the gas circuit plate. The sealing component can open a connecting space connecting the first gas circuit and the second gas circuit under the action of the gas pressure of the first gas circuit, and close the connecting space in a natural state.

2. The valve member for an air suspension system according to claim 1, wherein: The air inlet and the air inlet cavity are arranged in a valve body, and the valve body is provided with a first channel connecting the air inlet with the first air path, and a second channel connecting the second air path with the air inlet cavity.

3. The valve member for an air suspension system according to claim 2, characterized in that: The gas circuit board has two opposite surfaces, wherein the first surface is assembled with the valve body, and the second surface is matched with the sealing assembly; The first gas path extends on the first surface and leads from the first surface to the second surface, and the second gas path leads from the second surface to the first surface and extends on the first surface.

4. The valve member for an air suspension system according to claim 3, characterized in that: The first gas path extends in a curved manner on the first surface, and the second gas path extends in a straight line on the first surface.

5. The valve member for an air suspension system according to claim 3, characterized in that: The inflation valve also includes: A connecting plate is assembled between the valve body and the gas path plate, and the connecting plate is provided with a first connecting hole connecting the first channel and the first gas path, and a second connecting hole connecting the second gas path and the second channel.

6. The valve member for an air suspension system according to claim 5, characterized in that: The first channel and the first connecting hole, the first connecting hole and the first gas path, the second gas path and the second connecting hole, and the second connecting hole and the second channel are all sealed by sealing gaskets.

7. The valve member for an air suspension system according to claim 2, wherein: Also includes: A check valve is arranged in the second channel. The check valve can open the second channel under the action of the air pressure of the second air path and cut off the second channel in an initial state.

8. The valve member for an air suspension system according to claim 7, characterized in that: A check cavity is provided in the second channel, and the check valve comprises a cone portion assembled in the check cavity and a pre-tightened elastic portion; In the initial state, the elastic part pushes the cone part to seal against the port of the check chamber; Under the action of the gas pressure of the second gas path, the cone overcomes the thrust of the elastic part and leaves the port of the check chamber.

9. The valve member for an air suspension system according to claim 1, wherein: The sealing assembly comprises a sealing gasket and a pre-tightened elastic member; In the natural state, the elastic member pushes the sealing gasket to seal against the air path plate; Under the action of the air pressure of the first air path, the sealing gasket overcomes the thrust of the elastic member and leaves the air path plate, and the connecting space is formed between the air path plate and the sealing gasket.

10. The valve member for an air suspension system according to claim 9, characterized in that: The elastic member is installed in the preload cavity of the assembly seat, the sealing gasket is embedded in the end surface of the air path plate and covers the elastic member and the end surface of the preload cavity, and the assembly seat is sealed and assembled with the air path plate and presses the edge of the sealing gasket.

11. The valve member for an air suspension system according to claim 10, wherein: One end of the elastic member away from the sealing gasket is supported on the bottom of the preload cavity through an adjusting bolt.

12. The valve member for an air suspension system according to claim 1, wherein: The air inlet is provided with a filter element net.

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