A wheel valve, a tire inflation / deflation system, and a vehicle

Abstract

The application provides a wheel-side valve, a tire inflation and deflation system and a vehicle, which comprises a valve body arranged on a wheel; a valve core arranged in the valve body and matched with the valve body to form a sealing structure; an air inlet, an inflation port and an air outlet arranged on the valve body, the air inlet is connected with an air inlet pipeline of the wheel, and gas in the air inlet pipeline drives the valve core to move in the valve body; wherein, when the valve core moves to an air outlet position, the inflation port, the valve core and the air outlet are sequentially communicated to form an air outlet channel of the wheel, and when the valve core moves to an inflation position, the air inlet, the valve core and the inflation port are sequentially communicated to form an inflation channel of the wheel. Through the wheel-side valve, the tire inflation and deflation system and the vehicle, the air outlet efficiency of the wheel-side valve can be improved, and the size and weight of the wheel-side valve can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire inflation and deflation system, in particular to a wheel valve, a tire inflation and deflation system and a vehicle. BACKGROUND

[0002] The central inflation and deflation system of vehicle tire is used to automatically inflate and deflate the vehicle during driving, and the wheel valve is an important component in the inflation and deflation system, and the exhaust efficiency of the wheel valve affects the overall exhaust function of the inflation and deflation system.

[0003] The inflation and deflation process of the wheel valve is generally controlled based on the inlet pipe. However, at present, the exhaust efficiency of the wheel valve is low. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a wheel valve, a tire inflation and deflation system and a vehicle, which can improve the exhaust efficiency of the wheel valve.

[0005] To achieve the above-mentioned purpose and other related purposes, the present application provides a wheel valve, comprising:

[0006] a valve body arranged on a wheel;

[0007] a valve core arranged in the valve body and cooperating with the valve body to form a sealing structure;

[0008] an inlet, an inflation port and an exhaust port arranged on the valve body, the inlet is connected with an inlet pipe of the wheel, and the gas in the inlet pipe pushes the valve core to move in the valve body;

[0009] wherein, when the valve core moves to an exhaust position, the inflation port, the valve core and the exhaust port are sequentially communicated to form an exhaust passage of the wheel, and when the valve core moves to an inflation position, the inlet, the valve core and the inflation port are sequentially communicated to form an inflation passage of the wheel.

[0010] In an embodiment of the present application, the wheel valve further comprises:

[0011] a first channel formed at the exhaust position of the valve core, the inflation port, the first channel and the exhaust port are sequentially communicated; and

[0012] a second channel formed at the inflation position of the valve core, the inlet, the second channel and the inflation port are sequentially communicated.

[0013] In an embodiment of the present application, the valve core comprises:

[0014] an outer valve core slidingly arranged in the valve body;

[0015] an inner valve core slidingly arranged in the outer valve core;

[0016] an outer air hole arranged on the outer valve core, and when the valve core moves to the exhaust position, the air inlet, the outer air hole and the exhaust port are sequentially communicated to form the first channel; and

[0017] an inner air hole arranged on the inner valve core, and when the valve core moves to the air charging position, the air inlet, the inner air hole, the outer air hole and the air charging port are sequentially communicated to form the second channel.

[0018] In an embodiment of the present application, the valve core further comprises:

[0019] a communication hole arranged on one end of the outer valve core relative to the air inlet;

[0020] When the gas pressure in the air inlet pipeline is a first pressure value, the gas pushes the outer valve core to slide in the valve body, and when the gas pressure in the air inlet pipeline is a second pressure value, the gas pushes the outer valve core to slide in the valve body and pushes the inner valve core to slide in the outer valve core through the communication hole, and the second pressure value is greater than the first pressure value.

[0021] In an embodiment of the present application, the wheel valve further comprises a reset assembly connected between the valve body and the valve core, and the reset assembly comprises:

[0022] an outer spring sleeved on the surface of the outer valve core, one end of the outer spring connected with the outer wall of the outer valve core, and the other end connected with the inner wall of the valve body; and

[0023] an inner spring, one end of the inner spring connected with the inner wall of the valve body, and the other end extended into the inner part of the outer valve core and connected with the end part of the inner valve core.

[0024] In an embodiment of the present application, the valve core further comprises a first sealing ring arranged on the surface of the outer valve core close to the air charging port, and a first sealing cavity is formed between the first sealing ring and the inner wall of the valve body, and the air charging port is located in the first sealing cavity region.

[0025] In an embodiment of the present application, the wheel valve further comprises a one-way exhaust valve arranged on the exhaust port.

[0026] In an embodiment of the present application, the valve core further comprises a second sealing ring arranged on the surface of the outer valve core close to the exhaust port, and a second sealing cavity is formed between the first sealing ring, the second sealing ring, the inner wall of the valve body and the one-way exhaust valve, and the exhaust port is located in the second sealing cavity region.

[0027] The application further provides a tire inflation and deflation system comprising the wheel valve.

[0028] The application further provides a vehicle comprising the tire inflation and deflation system.

[0029] As described above, the application provides a wheel valve, a tire inflation and deflation system and a vehicle. The wheel valve directly discharges the gas in the wheel to the exhaust port through the valve core via the inflation port without passing through the inlet port, thereby avoiding the influence of the input gas pressure of the inlet pipeline on the exhaust efficiency and shortening the exhaust path, and significantly improving the exhaust efficiency of the wheel valve. Meanwhile, the inner and outer nested valve core structure of the wheel valve can reduce the size and weight of the wheel valve. Therefore, the exhaust efficiency of the tire inflation and deflation system using the wheel valve can also be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0031] Figure 1 A cross-sectional structure schematic diagram of the wheel valve of the application in a sealing state is shown.

[0032] Figure 2 A cross-sectional structure schematic diagram of the wheel valve of the application in an exhaust state is shown.

[0033] Figure 3 A cross-sectional structure schematic diagram of the wheel valve of the application in an inflation state is shown.

[0034] Figure 4 A cross-sectional structure schematic diagram of the valve core of the application is shown.

[0035] Element number explanation:

[0036] 10, valve body; 11, inlet port; 12, inflation port; 13, exhaust port; 14, first channel; 15, second channel; 20, valve core; 21, outer valve core; 22, inner valve core; 23, outer air hole; 24, inner air hole; 26, communication hole; 30, reset assembly; 31, outer spring; 32, inner spring; 40, one-way exhaust valve; 50, first sealing ring; 51, first sealing cavity; 60, second sealing ring; 61, second sealing cavity; 63, third sealing cavity. DETAILED DESCRIPTION

[0037] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0038] Please refer to Figures 1-4 It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concept of the present application, and the diagrams only show the components related to the present application, rather than the number, shape and size of the components during actual implementation. The actual implementation of each component can be randomly changed, and the component layout pattern can be more complex.

[0039] Please refer to Figure 1 , Figure 1 A wheel valve provided by the embodiments of the present application can be applied to a central inflation and deflation system of a vehicle tire to improve the deflation efficiency of the vehicle tire. Specifically, the wheel valve can include a valve body 10, a valve core 20, an air inlet 11, an inflation port 12 and a deflation port 13 provided on the valve body 10, and the valve body 10 can be installed on a vehicle wheel. The air inlet 11 on the valve body 10 can be used to connect an air inlet pipeline of the vehicle wheel. The inflation port 12 on the valve body 10 can be used to communicate with the inside of the tire. The deflation port 13 on the valve body 10 can be used to discharge the gas in the vehicle wheel. When the gas is input to the valve body 10 through the air inlet pipeline, the pressure of the gas can push the valve core 20 inside the valve body 10 to a deflation position or an inflation position to deflate or inflate the vehicle wheel. When the valve core 20 is in an initial sealing position inside the valve body 10, the valve core 20 can form a sealing structure at the air inlet 11, the inflation port 12 and the deflation port 13 of the valve body 10, at this time, the inflation port 12 and the deflation port 13 of the valve body 10 are not communicated, and the vehicle wheel is not deflated. At the same time, the air inlet 11 and the inflation port 12 of the valve body 10 are not communicated, and the vehicle wheel is not inflated. When the valve core 20 is in the deflation position inside the valve body 10, the inflation port 12, the valve core 20 and the deflation port 13 sequentially form a vehicle wheel deflation channel, so that the gas in the vehicle wheel is sequentially discharged through the inflation port 12, the valve core 20 and the deflation port 13. When the valve core 20 is in the inflation position inside the valve body 10, the air inlet 11, the valve core 20 and the inflation port 12 sequentially form an inflation channel of the vehicle wheel, so that the gas input from the air inlet pipeline can be sequentially filled into the vehicle wheel through the air inlet 11, the valve core 20 and the inflation port 12. Therefore, when the wheel valve deflates, the deflation channel does not need to pass through the air inlet 11, and the gas in the vehicle wheel is directly discharged from the inflation port 12 to the deflation port 13 through the valve core 20, avoiding the influence of the input gas pressure of the air inlet pipeline on the deflation efficiency, and shortening the deflation path, thereby significantly improving the deflation efficiency of the wheel valve.

[0040] Please see Figure 2 and Figure 3 To ensure normal venting of the exhaust channel, a first channel 14 can be formed at the venting position of the valve core 20, so that the inflation port 12, the first channel 14, and the exhaust port 13 are sequentially connected, thereby forming an unobstructed exhaust channel. Similarly, to ensure normal inflation of the inflation channel, a second channel 15 can be formed at the inflation position of the valve core 20, so that the air inlet 11, the second channel 15, and the inflation port 12 are sequentially connected, thereby forming an unobstructed inflation channel.

[0041] Please see Figure 2 , Figure 3 and Figure 4 The specific configuration of the first channel 14 and the second channel 15 of the valve core 20 can be designed based on the actual charging and discharging requirements of the wheel-side valve. For example, the valve core 20 can be configured as an integrated structure of an outer valve core 21 nested within an inner valve core 22. The first channel 14 can be formed on the outer valve core 21, and the second channel 15 can be formed between the inner valve core 22 and the outer valve core 21, so as to reduce the size and weight of the valve core 20 while ensuring charging and discharging efficiency. Thus, when this wheel-side valve is positioned off-center at the wheel end, the impact on balance can be reduced. Specifically, the valve core 20 may include an outer valve core 21, an inner valve core 22, an outer air port 23, and an inner air port 24. The outer valve core 21 can slide within the valve body 10, and the inner valve core 22 can slide within the outer valve core 21, so that the inner valve core 22 and the outer valve core 21 form an integrated valve core structure with inner and outer nesting. External air holes 23 can be provided on both sides of the outer valve core 21 housing, so that when the valve core 20 moves to the exhaust position, the inflation port 12, the external air holes 23, and the exhaust port 13 are sequentially connected to form the first channel 14. Internal air holes 24 can be provided on both sides of the inner valve core 22 housing, so that when the valve core 20 moves to the inflation position, the air inlet 11, the internal air holes 24, the external air holes 23, and the inflation port 12 are sequentially connected to form the second channel 15. At this time, the first channel 14 and the second channel 15 are integrated in the nested valve core. This nested structure can not only reduce the size of the dual valve cores, but also simplify and shorten the gas path between the first channel 14 and the second channel 15.

[0042] Please see Figure 2 and Figure 3When the spool 20 is set as the inner-outer nested structure of the inner spool 22 and the outer spool 21, the inner spool 22 and the outer spool 21 can be pushed to move in the valve body 10 by the gas pressure of the gas pipeline to form the exhaust passage for exhaust or the inflation passage for inflation. Specifically, the gas of the gas pipeline can enter the valve body 10 through the gas inlet 11 on the valve body 10 to push the outer spool 21 to slide. Further, one end of the outer spool 21 relative to the gas inlet 11 can be provided with the communication hole 26, so that the gas of the gas pipeline enters the communication hole 26 through the gas inlet 11 to push the inner spool 22 to move in the outer spool 21. It should be noted that, in order to meet the different position requirements of the exhaust passage and the inflation passage, when the tire is exhausted, the gas pressure in the gas pipeline can be set as a first pressure value, at this time, the gas enters the valve body 10 through the gas inlet 11 and pushes the outer spool 21 to slide in the valve body 10. When the outer spool 21 slides to make the inflation port 12, the outer gas hole 23 and the exhaust port 13 sequentially communicate to form the first passage 14, the gas pressure in the tire is relatively large, the gas in the tire can be exhausted from the inflation port 12, and then be exhausted to the exhaust port 13 through the outer gas hole 23, and finally be communicated with the outside to realize the exhaust. When the tire is inflated, the gas pressure in the gas pipeline can be set as a second pressure value, and the second pressure value is greater than the first pressure value, at this time, the gas entering from the gas inlet 11 can not only push the outer spool 21 to slide in the valve body 10, but also enter the inner spool 22 through the communication hole 26 to push the inner spool 22 to slide in the outer spool 21. When the outer spool 21 and the inner spool 22 slide to make the gas inlet 11, the inner gas hole 24, the outer gas hole 23 and the inflation port 12 sequentially communicate to form the second passage 15, the gas pipeline can be communicated with the inflation port 12 to realize the inflation function. The first pressure value and the second pressure value can be set based on the actual gas pressure requirement, which is not limited here.

[0043] Please refer to Figure 2 and Figure 3 and Figure 4In order to ensure that the valve core 20 can be normally reset after sliding to the inflation position or the exhaust position, a reset assembly 30 can be arranged between the valve body 10 and the valve core 20. Specifically, when the gas with the first pressure value is introduced into the inlet pipeline, the valve core 20 can be moved to the exhaust position in the valve body 10 under the pushing of the gas pressure, and the reset assembly 30 is pressed. Further, when the gas with the first pressure value is continuously introduced, the valve core 20 can be kept in the exhaust position in the valve body 10. When the gas with the second pressure value is introduced into the inlet pipeline, the valve core 20 can be moved to the inflation position in the valve body 10 under the pushing of the gas pressure, and the reset assembly 30 is pressed. Further, when the gas with the second pressure value is continuously introduced, the valve core 20 can be kept in the inflation position in the valve body 10. When no gas is introduced into the inlet pipeline, the valve core 20 is no longer pushed by the gas pressure, and at the same time, the reset assembly 30 is no longer pressed by the valve core 20 and starts to reset and push the valve core 20 to reset. The specific arrangement structure of the reset assembly 30 can be designed based on the actual reset requirement of the valve core 20. For example, when the valve core 20 is arranged in the inner-outer nested structure of the inner valve core 22 and the outer valve core 21, the reset assembly 30 can include an outer spring 31 and an inner spring 32. The outer spring 31 can be sleeved on the surface of the outer valve core 21, one end of which can be connected with the outer wall of the outer valve core 21, and the other end can be connected with the inner wall of the valve body 10, so as to directly provide the reset function for the outer valve core 21. One end of the inner spring 32 can be connected with the inner wall of the valve body 10, and the other end can extend into the inner part of the outer valve core 21 and be connected with the end part of the inner valve core 22, so as to directly provide the reset function for the inner valve core 22. When the gas in the inlet pipeline pushes the outer valve core 21 and the inner valve core 22 to move in the valve body 10, the outer spring 31 and the inner spring 32 can be compressed, and when no gas is introduced into the inlet pipeline, the outer valve core 21 and the inner valve core 22 are no longer pushed by the gas pressure, and at the same time, the outer spring 31 and the inner spring 32 are no longer pressed by the outer valve core 21 and the inner valve core 22 and start to reset, and push the outer valve core 21 and the inner valve core 22 to reset.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3The exhaust port 13 of the present valve can be provided with a one-way exhaust valve 40, which can play a sealing role, can discharge gas to the outside, and can prevent water and dust from entering the valve body 10 when the vehicle is wading or off-road. In order to further ensure the sealing effect in the valve core 20, the outer wall surface of the outer valve core 21 can be provided with a first sealing ring 50 and a second sealing ring 60 to ensure the sealing of the tire inflation port 12 and the exhaust port 13. Specifically, the position, number and structure of the first sealing ring 50 and the second sealing ring 60 can be set based on actual sealing requirements. For example, an annular groove can be formed on the surface of the outer valve core 21 near the inflation port 12, and the first sealing ring 50 can be an annular sealing ring embedded in the annular groove near the inflation port 12. An annular groove can be formed on the surface of the outer valve core 21 near the exhaust port 13. The second sealing ring 60 can be an annular sealing ring embedded in the annular groove near the exhaust port 13. When the outer valve core 21 and the inner valve core 22 are in the initial sealing position, the first sealing ring 50 is attached to the inner wall of the valve body 10 and located at the right side of the inflation port 12, and the first sealing ring 50 can form a first sealing cavity 51 between the inner wall of the valve body 10. The area of the first sealing cavity 51 can cover the inflation port 12, so that the gas in the tire cannot be discharged from the first sealing cavity 51 through the inflation port 12, and the external gas cannot enter the inflation port 12 through the first sealing cavity 51, thereby ensuring the sealing effect of the inflation port 12. At the same time, the second sealing ring 60 is attached to the inner wall of the valve body 10 and located at the right side of the exhaust port 13, and the first sealing ring 50, the second sealing ring 60, the inner wall of the valve body 10 and the one-way exhaust valve 40 can form a second sealing cavity 61. The area of the second sealing cavity 61 can cover the position of the exhaust port 13, so that not only the one-way exhaust valve 40 can seal the exhaust port 13, but also the second sealing cavity 61 can seal the exhaust port 13, and the gas outside the second sealing cavity 61 cannot enter the second sealing cavity 61 to discharge the exhaust port 13.

[0045] Please refer to Figure 2 and Figure 3Further, when the outer valve core 21 and the inner valve core 22 move to the exhaust position, the first sealing ring 50 is located at the position opposite to the inflation port 12, and the second sealing ring 60 is located at the position opposite to the exhaust port 13. At this time, the first sealing ring 50 and the second sealing ring 60 are no longer attached to the inner wall of the valve body 10, and a gap is formed between the first sealing ring 50 and the second sealing ring 60 and the inner wall of the valve body 10. The gas in the wheel enters the outer gas hole 23 on one side of the outer valve core 21 from the inflation port 12, and is exhausted to the exhaust port 13 from the outer gas hole 23 on the other side of the outer valve core 21, so as to perform the exhaust. When the outer valve core 21 and the inner valve core 22 move to the inflation position, the first sealing ring 50 is located at the position on the left side of the inflation port 12, and the second sealing ring 60 is located at the position on the left side of the exhaust port 13. At this time, the first sealing ring 50 and the second sealing ring 60 are attached to the inner wall of the valve body 10, and the first sealing ring 50 and the second sealing ring 60 form a third sealing cavity 63 with the inner wall of the valve body 10. The gas in the inlet pipeline enters the third sealing cavity 63 through the inflation port 12, the inner gas hole 24 and the outer gas hole 23 in sequence, and finally enters the inflation port 12, and the third sealing cavity 63 can block the inflating gas from being exhausted to the exhaust port 13, thereby achieving good sealing effect.

[0046] The present application also provides a tire inflation and deflation system, which can include the wheel valve described above. When the wheel valve performs the exhaust, the exhaust passage does not need to pass through the inflation port 11, and the gas in the wheel directly enters the exhaust port 13 from the inflation port 12 through the valve core 20, thereby avoiding the influence of the input gas pressure of the inlet pipeline on the exhaust efficiency, shortening the exhaust path, and significantly improving the exhaust efficiency of the wheel valve. At the same time, the inner and outer nested valve core structure of the wheel valve can reduce the size and weight of the wheel valve. Therefore, the exhaust efficiency of the tire inflation and deflation system using the wheel valve can also be significantly improved.

[0047] The present application also provides a vehicle, which can include the tire inflation and deflation system described above, so as to improve the exhaust efficiency of the tire inflation and deflation system of the vehicle.

[0048] In summary, the wheel valve, the tire inflation and deflation system and the vehicle provided by the present application can improve the exhaust efficiency of the wheel valve and reduce the size and weight of the wheel valve.

[0049] In the description of the present application, the description of the terms "the present embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The above disclosed embodiments of the present application are only used to help explain the present application. The embodiments do not describe all the details of the present application, and do not limit the present application to the specific embodiments. Obviously, according to the content of the present application, many modifications and changes can be made. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A wheel-side valve, characterized in that, include: The valve body is located on the wheel; The valve core is located inside the valve body and cooperates with the valve body to form a sealing structure; An air inlet, an air filling port, and an air exhaust port are provided on the valve body. The air inlet is connected to the air intake pipe of the wheel, and the gas in the air intake pipe pushes the valve core to move within the valve body. When the valve core moves to the exhaust position, the air inlet, the valve core, and the exhaust port are connected in sequence to form an exhaust channel for the wheel; when the valve core moves to the inflation position, the air inlet, the valve core, and the air inlet are connected in sequence to form an inflation channel for the wheel. A first channel is formed at the venting position of the valve core, and the air inlet, the first channel, and the venting port are sequentially connected; and The second channel is formed at the inflation position of the valve core, and the air inlet, the second channel and the inflation port are connected in sequence; The valve core includes: The outer valve core is slidably disposed within the valve body; The inner valve core is slidably disposed within the outer valve core; An external vent is provided on the external valve core, and when the valve core moves to the exhaust position, the inflation port, the external vent, and the exhaust port are sequentially connected to form the first channel; and An inner air hole is provided on the inner valve core, and when the valve core moves to the inflation position, the air inlet, the inner air hole, the outer air hole and the inflation port are sequentially connected to form the second channel.

2. The wheel-side valve according to claim 1, characterized in that, The valve core also includes: A connecting hole is provided at one end of the outer valve core opposite to the air inlet; Specifically, when the gas pressure in the intake pipe is a first pressure value, the gas pushes the outer valve core to slide within the valve body. When the gas pressure in the intake pipe is a second pressure value, the gas pushes the outer valve core to slide within the valve body and, through the connecting hole, pushes the inner valve core to slide within the outer valve core. The second pressure value is greater than the first pressure value.

3. The wheel-side valve according to claim 1, characterized in that, The wheel-side valve further includes a reset assembly connected between the valve body and the valve core, the reset assembly comprising: An outer spring is sleeved on the surface of the outer valve core, with one end connected to the outer wall of the outer valve core and the other end connected to the inner wall of the valve body; and An inner spring has one end connected to the inner wall of the valve body and the other end extending into the outer valve core and connected to the end of the inner valve core.

4. The wheel-side valve according to claim 1, characterized in that, The valve core also includes a first sealing ring disposed on the surface of the outer valve core near the air inlet, and a first sealing cavity is formed between the first sealing ring and the inner wall of the valve body, and the air inlet is located within the first sealing cavity area.

5. The wheel-side valve according to claim 1, characterized in that, The wheel-side valve also includes a one-way exhaust valve, which is located on the exhaust port.

6. The wheel-side valve according to claim 5, characterized in that, The valve core also includes a second sealing ring disposed on the surface of the outer valve core near the exhaust port, and a second sealing cavity is formed between the first sealing ring, the second sealing ring, the inner wall of the valve body and the one-way exhaust valve, and the exhaust port is located in the area of ​​the second sealing cavity.

7. A tire inflation / deflation system, characterized in that, Includes the wheel-side valve as described in any one of claims 1-6.

8. A vehicle, characterized in that, Includes the tire inflation / deflation system as described in claim 7.

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