Control valve assembly and tire inflation and deflation system

Abstract

The embodiment of the utility model provides a control valve assembly and tire inflation and deflation system relates to regulating valve technical field, control valve assembly is equipped with valve body, first airway, inflation valve, deflation valve, a plurality of bridge valve and second airway, first airway, inflation valve, deflation valve and second airway are provided in the valve body, inflation valve and first airway are connected with external air source, and deflation valve and second airway are connected with external air source. The deflation valve is connected with the first air passage and external atmosphere, an inlet of each bridge valve is connected with the first air passage, an outlet of each bridge valve is connected with a corresponding tire, each bridge valve is provided with an exhaust port, the second air passage is connected with the exhaust port of each bridge valve, when each bridge valve is opened, the inlet of each bridge valve is communicated with the outlet, and when each bridge valve is closed, the second air passage is communicated with the exhaust port of each bridge valve. And the outlet is communicated with the exhaust port. The air channel serves as an internal public air channel, pressure maintaining is achieved, a pressure maintaining valve in an existing control valve assembly is omitted, an air channel of the control valve assembly is optimized, and the air tightness and the working stability of a tire inflation and deflation system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a control valve assembly and a tire inflation and deflation system. Background Art

[0002] When a vehicle is driving, it is necessary to maintain appropriate tire pressure according to different road conditions. When the road conditions are complex, such as driving in deserts, coastal mudflats, swamps, and muddy areas, it is necessary to reduce the tire inflation pressure to improve the versatility of the car. When driving on good roads, it is necessary to increase the tire inflation pressure as much as possible to give full play to the maneuverability of the car.

[0003] The tire inflation and deflation function is generally achieved by the tire inflation and deflation system, in which the control valve assembly is one of the important components. In the prior art, the control valve assembly needs to be equipped with a pressure-maintaining valve for pressure maintenance. The pressure-maintaining valve is connected to the control valve assembly through an air pipe, resulting in a large number of joints and connecting pipes in the control valve assembly, poor air tightness, and poor working stability of the tire inflation and deflation system. Utility Model Content

[0004] The embodiment of the utility model provides a control valve assembly and a tire inflation and deflation system to solve the technical problem in the related art that the control valve assembly needs to be equipped with a pressure-maintaining valve for pressure maintenance, resulting in a large number of joints and connecting pipes and poor working stability of the tire inflation and deflation system.

[0005] In a first aspect, an embodiment of the utility model provides a control valve assembly, comprising:

[0006] Valve body;

[0007] a first air passage, the first air passage being disposed in the valve body;

[0008] An inflation valve, the inflation valve is arranged in the valve body, and the inflation valve is connected to the first air channel and an external air source;

[0009] An air release valve, the air release valve is arranged in the valve body, and the air release valve is connected to the first air passage and the external atmosphere;

[0010] A plurality of bridge valves, wherein the inlet of each bridge valve is connected to the first air passage, the outlet of each bridge valve is connected to a corresponding tire, and each bridge valve is provided with an exhaust port;

[0011] a second air passage, the second air passage being disposed in the valve body and connected to an exhaust port of each of the bridge valves;

[0012] When each of the bridge valves is opened, its inlet is communicated with the outlet, and when each of the bridge valves is closed, its outlet is communicated with the exhaust port.

[0013] In some embodiments, the invention further comprises: a relief valve, wherein the relief valve is arranged on the outer surface of the valve body, and the relief valve is connected to the air release valve.

[0014] In some embodiments, the method further comprises: a pressure sensor connected to the first airway.

[0015] In some embodiments, the bridge valve is a two-position three-way solenoid valve.

[0016] In some embodiments, the valve body further includes: a top plate and a base; the top plate is arranged on the top of the valve body, and the base is arranged on the bottom of the valve body.

[0017] In some embodiments, second mounting holes are provided around the base.

[0018] In some embodiments, a plurality of first mounting holes are provided on the opposite side of the top plate, and the top plate and the valve body are connected via the plurality of first mounting holes.

[0019] In some embodiments, the valve body includes: a plurality of joints, each of which is disposed on the valve body, and each of which is used to connect one of the bridge valves and the corresponding tire.

[0020] In some embodiments, the connector comprises a right-angle connector.

[0021] In a second aspect, a tire inflation and deflation system is provided, comprising the aforementioned control valve assembly.

[0022] The beneficial effects brought by the technical solution provided by the utility model include:

[0023] The embodiment of the utility model provides a control valve assembly and a tire inflation and deflation system, wherein the control valve assembly is provided with a valve body, a first air passage, an inflation valve, a deflation valve, a plurality of bridge valves and a second air passage, wherein the first air passage is provided in the valve body, the inflation valve is provided in the valve body, the inflation valve is connected to the first air passage and an external air source, the deflation valve is provided in the valve body, the deflation valve is connected to the first air passage and the external atmosphere, the inlet of each bridge valve is connected to the first air passage, the outlet of each bridge valve is connected to a corresponding tire, each bridge valve is provided with an exhaust port, the second air passage is provided in the valve body, the second air passage is connected to the exhaust port of each bridge valve, when each bridge valve is opened, its inlet is connected to the outlet, and when each bridge valve is closed, its outlet is connected to the exhaust port. The utility model sets the second air passage as an internal common air passage, realizes the pressure maintaining function, cancels the pressure maintaining valve in the existing control valve assembly, optimizes the air path of the control valve assembly, and improves the air tightness and working stability of the tire inflation and deflation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of a control valve assembly provided by an embodiment of the utility model;

[0026] Figure 2 Another schematic diagram of a control valve assembly provided by an embodiment of the utility model;

[0027] Reference numerals:

[0028] 1. valve body; 11. joint; 12. top plate; 121. first mounting hole; 13. base; 131. second mounting hole;

[0029] 2. First airway;

[0030] 3. Inflatable valve;

[0031] 4. Air release valve;

[0032] 5. Bridge valve; 51. Inlet; 52. Outlet; 53. Exhaust port;

[0033] 6. Tire; 61. Tire valve;

[0034] 7. Overflow valve;

[0035] 8. Pressure sensor;

[0036] 9. Second airway. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The embodiment of the utility model provides a control valve assembly and a tire inflation and deflation system, which can solve the technical problems in the prior art that the control valve assembly has many joints and connecting pipes and the system has poor working stability.

[0039] See also Figure 1 and Figure 2As shown, a control valve assembly provided by an embodiment of the utility model includes a valve body 1, a first air passage 2, an inflation valve 3, an exhaust valve 4, a second air passage 9 and a plurality of bridge valves 5.

[0040] The first air passage 2, the inflation valve 3, the deflation valve 4, and the second air passage 9 are arranged in the valve body 1. The inflation valve 3 is connected to the first air passage 2 and an external air source, the deflation valve 4 is connected to the first air passage 2 and the external atmosphere, the inlet 51 of each bridge valve 5 is connected to the first air passage 2, the outlet 52 of each bridge valve 5 is connected to a corresponding tire 6, each bridge valve 5 is provided with an exhaust port 53, and the second air passage 9 is connected to the exhaust port 53 of each bridge valve 5. When each bridge valve 5 is opened, its inlet 51 is connected to the outlet 52, and when each bridge valve 5 is closed, its outlet 52 is connected to the exhaust port 53. When the inflation valve 3, the corresponding bridge valve 5, and the first air passage 2 are opened at the same time, the tire 6 connected to the corresponding bridge valve 5 is inflated, and when the deflation valve 4, the corresponding bridge valve 5, and the first air passage 2 are opened at the same time, the tire 6 connected to the corresponding bridge valve 5 is deflated. At the same time, the inflation valve 3, the deflation valve 4 and the bridge valve 5 are closed. At this time, the bridge valve 5 is connected to the atmosphere through the second air passage 9. The gas in the tire 6 enters the second air passage 9 through the corresponding bridge valve 5 and is quickly discharged to the atmosphere. Then, the tire valve 61 of the tire 6 is closed to achieve the pressure-maintaining action of the tire 6. In contrast, the control valve assembly in the prior art needs to be equipped with a pressure-maintaining valve for pressure-maintaining. The pressure-maintaining valve is installed in the control valve assembly and the wheel side valve. When the pressure-maintaining valve is powered on, the air outlet is connected to the air inlet to achieve the inflation and deflation functions. When the pressure-maintaining valve is powered off, the air inlet and the air outlet are connected to the atmosphere, and the gas is quickly emptied to achieve pressure maintenance. The pressure-maintaining valve is connected to the control valve assembly through a nylon air pipe. The external nylon air pipe and the joint reduce the air tightness. The utility model concentrates the function of the pressure-maintaining valve in the control valve assembly, cancels the pressure-maintaining valve, reduces external joints and pipelines, and improves the overall air tightness.

[0041] The control valve assembly provided by the embodiment of the utility model is provided with a valve body, a first air channel, an inflation valve, a deflation valve, a second air channel and multiple bridge valves. Compared with the prior art, the second air channel in the utility model is an internal common air channel, which can realize the combination and connection of multiple valves without external pipelines, eliminates the pressure maintaining valve, reduces the number of pipelines and interfaces, and improves the air tightness and stability of the operation.

[0042] As an optional implementation, in a utility model embodiment, see Figure 1As shown, a relief valve 7 is also provided, and the relief valve 7 is provided on the outer surface of the valve body 1. The relief valve 7 is connected to the deflation valve 4. When inflating, the inflation valve 3 and the bridge valve 5 are opened at the same time, and the gas enters the first air channel 2 from the gas source through the inflation valve 3, and enters the corresponding tire 6 from the first air channel 2 through the bridge valve 5. At this time, the corresponding tire 6 is connected with the corresponding bridge valve 5, and the gas enters the corresponding tire 6 to realize the inflation action of the tire 6. When deflation, the inflation valve 3 is closed and the deflation valve 4 is opened. At this time, the tire 6 is connected with the bridge valve 5, and the gas in the tire 6 enters the first air channel 2 through the corresponding bridge valve 5, and then enters the relief valve 7 from the deflation valve 4 to be discharged into the atmosphere, realizing the deflation action of the tire 6. The relief valve 7 allows excess gas to overflow, ensures constant pressure, and maintains wheel pressure.

[0043] As an optional implementation, in a utility model embodiment, see Figure 1 As shown, a pressure sensor 8 is also provided. The pressure sensor 8 is connected to the first air channel 2 . The pressure sensor 8 is connected to each of the bridge valves 5 through the first air channel 2 to achieve pressure measurement of each of the tires 6 .

[0044] As an optional implementation, in one embodiment of the utility model, the bridge valve 5 is a two-position three-way solenoid valve with a simple structure, which is convenient for charging, discharging and maintaining pressure.

[0045] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, a top plate 12 and a base 13 are also provided. The top plate 12 is arranged on the top of the valve body 1. The top plate 12, the valve body 1 and the base 13 form a box body for protecting the internal valves, the first air channel 2, the second air channel 9 and the pressure sensor 8. The base 13 is arranged at the bottom of the valve body 1, and is used to support the internal valves, the first air channel 2, the second air channel 9 and the pressure sensor 8. A plurality of valves, the first air channel 2 and the second air channel 9 are integrated in the box body, which occupies a small space and is easy to install.

[0046] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, the base 13 is provided with second mounting holes 131 on all sides thereof, and the second mounting holes 131 are used for mounting and fixing the control valve assembly.

[0047] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, a plurality of first mounting holes 121 are provided on the opposite side of the top plate 12, and the top plate 12 is detachably connected to the valve body 1. Two groups of first mounting holes 121 are provided on the opposite edge of the top plate 12, and the two groups of first mounting holes 121 are used to connect the top plate 12 and the valve body 1, so that the connection is firm and the air tightness of the control valve is improved.

[0048] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, the valve body 1 is provided with a plurality of joints 11 , each of the joints 11 is provided on the valve body 1 , and each of the joints 11 is used to connect one of the bridge valves 5 and the corresponding tire 6 .

[0049] As an optional implementation, in a utility model embodiment, see Figure 2 As shown, the connector 11 is a right-angle connector, which is quick to connect and saves space.

[0050] The embodiment of the utility model further provides a tire inflation and deflation system, comprising the aforementioned control valve assembly. The control valve assembly comprises a valve body 1, a first air passage 2, an inflation valve 3, a deflation valve 4, a second air passage 9 and a plurality of bridge valves 5.

[0051] The first air passage 2, the inflation valve 3, the deflation valve 4, and the second air passage 9 are arranged in the valve body 1. The inflation valve 3 is connected to the first air passage 2 and an external air source, the deflation valve 4 is connected to the first air passage 2 and the external atmosphere, the inlet 51 of each bridge valve 5 is connected to the first air passage 2, the outlet 52 of each bridge valve 5 is connected to a corresponding tire 6, each bridge valve 5 is provided with an exhaust port 53, and the second air passage 9 is connected to the exhaust port 53 of each bridge valve 5. When each bridge valve 5 is opened, its inlet 51 is connected to the outlet 52, and when each bridge valve 5 is closed, its outlet 52 is connected to the exhaust port 53. When the inflation valve 3, the corresponding bridge valve 5, and the first air passage 2 are opened at the same time, the tire 6 connected to the corresponding bridge valve 5 is inflated, and when the deflation valve 4, the corresponding bridge valve 5, and the first air passage 2 are opened at the same time, the tire 6 connected to the corresponding bridge valve 5 is deflated. At the same time, the inflation valve 3, the deflation valve 4 and the bridge valve 5 are closed. At this time, the bridge valve 5 is connected to the atmosphere through the second air passage 9. The gas in the tire 6 enters the second air passage 9 through the corresponding bridge valve 5 and is quickly discharged to the atmosphere. The tire valve 61 of the tire 6 is closed to achieve the pressure-maintaining action of the tire 6. In contrast, the control valve assembly in the prior art needs to be equipped with a pressure-maintaining valve for pressure-maintaining. The pressure-maintaining valve is installed in the control valve assembly and the wheel side valve. When the pressure-maintaining valve is powered on, the air outlet is connected to the air inlet to achieve the inflation and deflation functions. When the pressure-maintaining valve is powered off, the air inlet and the air outlet are connected to the atmosphere, and the gas is quickly emptied to achieve pressure maintenance. The pressure-maintaining valve is connected to the control valve assembly through a nylon air pipe. The external nylon air pipe and the joint reduce the air tightness. The utility model concentrates the function of the pressure-maintaining valve in the control valve assembly, cancels the pressure-maintaining valve, reduces external joints and pipelines, and improves the overall air tightness.

[0052] The tire inflation and deflation system provided by the embodiment of the utility model includes a control valve assembly, which includes a valve body, a first air channel, an inflation valve, a deflation valve, a second air channel and multiple bridge valves. Compared with the prior art, the air channel in the utility model is an internal common air channel, and multiple valves can be combined and connected without external pipelines, thereby reducing the number of pipelines and interfaces and improving the air tightness and stability of the operation.

[0053] A control valve assembly in the embodiment of the utility model has the following working principle:

[0054] The control valve assembly is provided with a valve body 1, a first air passage 2, an inflation valve 3, a deflation valve 4, a second air passage 9 and a plurality of bridge valves 5. When inflating, the inflation valve 3 and the bridge valve 5 are opened at the same time, and the gas enters the first air passage 2 from the gas source through the inflation valve 3, and enters the corresponding tire 6 from the first air passage 2 through the bridge valve 5. At this time, the corresponding tire 6 is connected with the corresponding bridge valve 5, and the gas enters the corresponding tire 6 to realize the inflation action of the tire 6. When deflation, the inflation valve 3 is closed and the deflation valve 4 is opened. At this time, the tire 6 is connected with the bridge valve 5, and the gas in the tire 6 enters the first air passage 2 through the corresponding bridge valve 5, and then enters the overflow valve 7 through the deflation valve 4 to be discharged into the atmosphere, realizing the deflation action of the tire 6. When maintaining pressure, the inflation valve 3, the deflation valve 4 and the bridge valve 5 are closed at the same time. At this time, the exhaust port 53 of the bridge valve 5 is connected to the atmosphere through the second air channel 9. The gas in the pipes of the bridge valve 5 and the tire 6 enters the second air channel 9 through the corresponding bridge valve 5 and is quickly discharged to the atmosphere. Then the tire valve 61 is closed to achieve the pressure maintenance action of the tire 6. The second air channel 9 is an internal common air channel, and a combination of multiple valves can be connected without external pipelines, which reduces the number of pipelines and interfaces and improves the air tightness and stability of the operation.

[0055] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0056] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A control valve assembly, characterized in that: include: Valve body (1); A first air passage (2), wherein the first air passage (2) is arranged in the valve body (1); An inflation valve (3), the inflation valve (3) being arranged in the valve body (1), the inflation valve (3) being connected to the first air passage (2) and an external air source; an air release valve (4), the air release valve (4) being arranged in the valve body (1), the air release valve (4) being connected to the first air passage (2) and the external atmosphere; A plurality of bridge valves (5), wherein the inlet (51) of each bridge valve (5) is connected to the first air passage (2), the outlet (52) of each bridge valve (5) is connected to a corresponding tire (6), and each bridge valve (5) is provided with an exhaust port (53); A second air passage (9), the second air passage (9) being arranged in the valve body (1), the second air passage (9) being connected to an exhaust port (53) of each of the bridge valves (5); When each of the bridge valves (5) is opened, its inlet (51) is communicated with the outlet (52), and when each of the bridge valves (5) is closed, its outlet (52) is communicated with the exhaust port (53).

2. A control valve assembly according to claim 1, characterized in that: Also includes: A relief valve (7), wherein the relief valve (7) is arranged on the outer surface of the valve body (1), and the relief valve (7) is connected to the air release valve (4).

3. A control valve assembly according to claim 1, characterized in that: Also includes: A pressure sensor (8), the pressure sensor (8) is connected to the first airway (2).

4. A control valve assembly according to claim 1, characterized in that: The bridge valve (5) is a two-position three-way solenoid valve.

5. A control valve assembly according to claim 1, characterized in that: Also includes: A top plate (12) and a base (13); The top plate (12) is arranged on the top of the valve body (1), and the base (13) is arranged on the bottom of the valve body (1).

6. A control valve assembly according to claim 5, characterized in that: Second mounting holes (131) are provided around the base (13).

7. A control valve assembly according to claim 5, characterized in that: A plurality of first mounting holes (121) are provided on the opposite side of the top plate (12), and the top plate (12) and the valve body (1) are connected via the plurality of first mounting holes (121).

8. A control valve assembly according to claim 1, characterized in that: The valve body (1) comprises: A plurality of connectors (11), each of the connectors (11) is arranged on the valve body (1), and each of the connectors (11) is used to connect one of the bridge valves (5) and the corresponding tire (6).

9. A control valve assembly according to claim 8, characterized in that: The joint (11) comprises a right-angle joint.

10. A tire inflation and deflation system, characterized in that: A control valve assembly comprising any one of claims 1-9.

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