Valve body resistant to pulsating airflow impact and controller device

Abstract

The utility model provides a pulsating airflow impact resistant valve body and a controller device, the valve body is characterized in that a first air guide cavity is formed in an inflation valve body shell, a first air inlet end is arranged at one end in the extending direction of the inflation valve body shell, and the first air inlet end comprises an inflation inlet communicated with an air using unit; the first air inlet is communicated with the inflation inlet, the second air inlet is used for being communicated with the air source assembly, and the first switch assembly is used for controlling the first air inlet to be communicated with or disconnected from the first air guide cavity; the air release valve body shell and the inflation valve body shell are arranged side by side, a second air guide cavity is formed in the air release valve body shell, a second air inlet end communicated with the first air inlet end is arranged on the same side of the first air inlet end in the extending direction of the air release valve body shell, the second air inlet end comprises a connecting port communicated with the inflation port, and the second air guide cavity is communicated with at least one air release port. According to the scheme, the impact of pulsating airflow on the valve body can be reduced, and the air leakage speed can also be increased.

Description

Technical Field

[0001] The present application relates to the technical field of automobile pneumatic systems, and in particular to a valve body and a controller device that are resistant to pulsating airflow impact. Background Art

[0002] With the development of technology, car seats have more and more comfort functions. Lumbar support, massage, side support and other functions are more common seat comfort functions. No matter which function is realized, it is necessary to inflate or deflate the airbag through the pneumatic system.

[0003] In the prior art, the pneumatic system is usually controlled to inflate or deflate the air bag by connecting an inflation valve body and a deflation valve body in series. Since the series method is a linear air path, the deflation valve will be intermittently impacted by the inflation pulsating airflow during the inflation process, which can easily lead to air leakage. In addition, during the deflation process, the gas in the air bag enters through the air inlet of the inflation valve body, flows through the narrow gap between the valve core and the outer shell in the air guide cavity of the inflation valve body, the air inlet of the deflation valve body, and the narrow gap between the valve core and the outer shell in the air guide cavity of the deflation valve body, and is finally discharged from the deflation port of the deflation valve body. The deflation path is long, and the deflation resistance through the narrow gap is large, resulting in a slow deflation speed. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a valve body and a controller device that are resistant to pulsating airflow impact, so as to avoid the impact of pulsating gas on the valve body during the inflation process.

[0005] In a first aspect, the present application provides a valve body that resists pulsating airflow impact, comprising:

[0006] An inflation valve body shell, wherein a first air guide cavity is provided in the inflation valve body shell, wherein one end of the first air guide cavity along its extension direction has a first air inlet end, wherein the first air inlet end comprises an inflation port for communicating with an air-using unit, a first air inlet communicated with the inflation port, and a second air inlet for communicating with an air source component, wherein the second air inlet is always connected to the first air guide cavity;

[0007] a first switch assembly, the first switch assembly being disposed on a side of the first air inlet away from the inflation port, and being used to control the first air inlet to be connected to or blocked from the first air guide cavity;

[0008] A deflation valve body shell, wherein the deflation valve body shell and the inflation valve body shell are arranged side by side, a second air guide cavity is provided in the deflation valve body shell, the second air guide cavity has a second air inlet end connected with the first air inlet end along its extension direction and at the end on the same side as the first air inlet end, the second air inlet end includes a third air inlet connected with the inflation port, and the second air guide cavity is connected with at least one deflation port;

[0009] A second switch assembly, the second switch assembly is arranged side by side with the first switch assembly, and is used to control the third air inlet to be connected or blocked with the second air guide cavity.

[0010] According to the technical solution provided in the embodiment of the present application, the air leak port is arranged at an end of the second air guide cavity away from the third air inlet and / or at an end close to the third air inlet.

[0011] According to the technical solution provided in the embodiment of the present application, a connecting passage is provided between the first air inlet end and the second air inlet end, one end of the connecting passage is connected to the inflation port, and the other end is connected to the third air inlet.

[0012] According to the technical solution provided in the embodiment of the present application, a first connecting end is provided on the first air inlet end, a second connecting end is provided on the second air inlet end, and the first connecting end and the second connecting end are plugged together to form the connecting passage.

[0013] According to the technical solution provided in the embodiment of the present application, the first switch assembly includes a first valve core arranged in the first air guide cavity, a first elastic member arranged on the side of the first valve core away from the first air inlet end, and a coil sleeved on the outside of the inflation valve body shell corresponding to the first air guide cavity, and the coil is used to drive the first valve core to move along the axial direction of the first air guide cavity;

[0014] The second switch assembly includes a second valve core disposed in the second air guide cavity, a second elastic member disposed side by side with the first elastic member, and a coil sleeved on the outside of the inflation valve body shell corresponding to the second air guide cavity, wherein the coil is used to drive the second valve core to move along the axial direction of the first air guide cavity;

[0015] On the inflation valve body shell and the deflation valve body shell, a U-shaped iron connected to the inflation valve body shell and the deflation valve body shell is arranged across the coil.

[0016] According to the technical solution provided in the embodiment of the present application, there is a first gap between the inflation valve body shell and the deflation valve body shell; and an opening for avoiding magnetic connection is provided on the U-shaped iron at a position relative to the first gap.

[0017] According to the technical solution provided in the embodiment of the present application, the part of the U-shaped iron connected to the outer shell of the inflation valve body is the first connecting part, and the part connected to the outer shell of the deflation valve body is the second connecting part. The first connecting part and the second connecting part together constitute the U-shaped iron, and along the extension direction of the first air guide cavity, the ends of the first connecting part and the second connecting part on the same side can be arranged integrally or separately.

[0018] According to the technical solution provided in the embodiment of the present application, when the first connecting part and the second connecting part are integrally arranged close to the first air intake end side and separately arranged away from the first air intake end side, a magnetic field barrier is inserted between the first connecting part and the second connecting part away from the first air intake end side.

[0019] According to the technical solution provided in the embodiment of the present application, a quick plug is detachably connected to the first air inlet end.

[0020] In the second aspect, the present application proposes a controller device, comprising a controller housing and a plurality of valve bodies as described above that are resistant to pulsating airflow impact; at least one of the valve bodies resistant to pulsating airflow impact is arranged in the controller housing; an air intake channel is provided inside the controller housing, and the air intake channel is used to connect the air source component and the second air inlet of all the valve bodies resistant to pulsating airflow impact.

[0021] In summary, the present application proposes a valve body and controller device that are resistant to pulsating airflow impact, the valve body comprising: an inflation valve body shell, a first air guide cavity is provided in the inflation valve body shell, the first air guide cavity has a first air inlet end at one end along its extension direction, the first air inlet end comprises an inflation port connected to an air using unit, a first air inlet connected to the inflation port, and a second air inlet for connecting to an air source component, a first switch component is used to control the first air inlet to be connected or blocked with the first air guide cavity; a deflation valve body shell and the inflation valve body shell are arranged side by side, a second air guide cavity is provided in the deflation valve body shell, the second air guide cavity has a second air inlet end connected to the first air inlet end along its extension direction and at the end on the same side as the first air inlet end, the second air inlet end comprises a third air inlet connected to the inflation port, the second air guide cavity is connected to at least one deflation port, the second switch component is arranged side by side with the first switch component, and is used to control the third air inlet to be connected or blocked with the second air guide cavity.

[0022] Compared with the prior art, the beneficial effects of the present application are: the valve body proposed in the present application connects the first air inlet end and the second air inlet end of the inflation valve body shell side by side up and down. When the air bag is inflated, the parallel inflation valve body and the deflation valve body are connected side by side, and the inflation airflow needs to pass through an L-shaped channel to reach the deflation valve. This can reduce the impact of the airflow on the deflation valve and improve the air tightness of the overall valve body. In addition, when the air bag is deflated, the gas can directly reach the air guide cavity of the deflation valve body through the second air inlet port of the inflation valve body, and then be discharged from at least one deflation port connected to the air guide cavity. The deflation path is shortened, and the gas does not need to flow through the narrow gap between the valve core and the shell in the air guide cavity of the inflation valve body. The deflation resistance is reduced, and the number of deflation ports is increased, thereby increasing the deflation volume per unit time from multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic diagram of the structure of a valve body (air bag inflation) that resists pulsating airflow impact provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the explosion structure of a valve body that resists pulsating airflow impact provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the inflation valve body (the first switch assembly in the second state) provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of the inflation valve body (the first switch assembly is in the first state) provided in an embodiment of the present application;

[0027] Figure 5 A schematic structural diagram of a deflation valve body (a second switch assembly in a fourth state) provided in an embodiment of the present application;

[0028] Figure 6 A schematic structural diagram of a deflation valve body (a second switch assembly in a third state) provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of a valve body that resists pulsating airflow impact provided in an embodiment of the present application, wherein Figure 1 Reason Figure 7 The cross-sectional view obtained by step sectioning along the D direction;

[0030] Figure 8 A schematic diagram of the structure of a valve body (the second switch assembly is in the third state) that resists pulsating airflow impact provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the first structure of the U-shaped iron provided in the embodiment of the present application;

[0032] Fig.10 A second structural schematic diagram of a U-shaped iron provided in an embodiment of the present application;

[0033] Fig.11 A third structural schematic diagram of the U-shaped iron provided in an embodiment of the present application;

[0034] Fig.12 A schematic diagram of the structure of the quick plug provided in the embodiment of the present application;

[0035] Fig.13 A schematic diagram of the structure of the magnetic field barrier provided in an embodiment of the present application.

[0036] The text annotations in the figure represent:

[0037] 1. Inflatable valve housing; 1-0, inflatable valve body; 10, first air guide cavity; 11, steel ball; 12, first rubber cap; 13, first valve core; 14, second rubber cap; 15, first elastic member; 16, first sealing portion; 17, first plug; 18, inflatable port; 19, second air inlet; 190, first air inlet; 191, third air inlet; 2. Deflation valve housing; 2-0, deflation valve body; 20, second air guide cavity; 200, deflation port; 201, Connecting port; 22, third rubber cap; 23, second valve core; 24, fourth rubber cap; 25, second elastic member; 26, second sealing portion; 27, second plug; 3, U-shaped iron; 31, opening to avoid magnetic connection; 32, window; 40, first air inlet end; 50, second air inlet end; 401, first connecting end; 501, second connecting end; 54, connecting passage; 4, quick plug; 41, third sealing portion; 5, magnetic field barrier; 8, air bag; 9, connecting sealing portion. DETAILED DESCRIPTION

[0038] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] Example 1

[0041] As mentioned in the background technology, in order to solve the problems in the prior art, this application proposes a valve body with rapid air release, please refer to Figure 1 and Figure 7 As shown, including:

[0042] An inflation valve body shell 1, wherein a first air guide cavity 10 is provided in the inflation valve body shell 1, wherein one end of the first air guide cavity 10 along its extension direction has a first air inlet end 40, wherein the first air inlet end 40 comprises an inflation port 18 for communicating with an air unit, a first air inlet 190 for communicating with the inflation port 18, and a second air inlet 19 for communicating with an air source assembly, wherein the second air inlet 19 is always connected to the first air guide cavity 10;

[0043] A first switch assembly, which is disposed on the side of the first air inlet 190 away from the inflation port 18 and is used to control the first air inlet 190 to be connected or blocked with the first air guide cavity 10;

[0044] Furthermore, the second air inlet 19 is connected to the air source assembly through an air inlet pipeline of the controller, and a steel ball 11 is provided on the inflation valve body shell 1, and the steel ball 11 is used to close the air path in the inflation valve body shell 1 to avoid air leakage.

[0045] A deflation valve body shell 2, wherein the deflation valve body shell 2 is arranged side by side with the inflation valve body shell 1, wherein a second air guide cavity 20 is provided in the deflation valve body shell 2, and a second air inlet end 50 connected with the first air inlet end 40 is provided along the extension direction of the second air guide cavity 20 and on the same side as the first air inlet end 40, wherein the second air inlet end 50 includes a third air inlet 191 connected with the inflation port 18, and the second air guide cavity 20 is provided with at least one deflation port 200;

[0046] The second switch assembly is arranged side by side with the first switch assembly, and is used to control the connection or blocking between the third air inlet 191 and the second air guide cavity 20.

[0047] Specifically, the traditional inflation valve and deflation valve are connected in series, with the inflation valve in front and the deflation valve in the back. In this form, due to the linear air path, the deflation valve will be intermittently impacted by the pulsating airflow during the inflation process, which can easily lead to leakage. Moreover, the air tightness of the inflation valve will easily decrease after a long period of use, resulting in self-inflation. For example, in one usage scenario, the switch component of one of the inflation valve bodies 1-0 is not opened, but when the air pump is working to inflate the other inflation valve body 1-0, the spring is affected by the air pressure for a long time, resulting in a decrease in elasticity, and the inflation valve body 1-0 will automatically open, and this inflation valve body 1-0 will leak air into the air bag 8.

[0048] Based on this problem, the inflation valve and deflation valve of this application are connected in parallel. In this form, when an inflation valve body 1-0 is in a closed state, there is always gas in the gas path of the valve body controller. Please refer to Figure 3 As shown, the intake airflow of these gases acts in reverse on the first valve core 13 of the inflation valve body 1-0, which is equivalent to that the gas can push the first valve core 13 so that the end of the first valve core 13 close to the first air inlet end 40 can be blocked at the inlet of the first air guide cavity 10, which helps to improve the sealing of the valve body. In addition, during the inflation process, due to the side-by-side connection, the inflation airflow needs to pass through the L-shaped channel when reaching the deflation valve body 2-0, which reduces the impact of the airflow on the deflation valve and improves the air tightness of the overall valve body. In this way, it can be ensured that when the inflation valve body 1-0 is not opened, the inflation valve body 1-0 will not leak into the air bag 8.

[0049] In a preferred embodiment, the first switch assembly includes a first valve core 13 disposed in the first air guide cavity 10, a first elastic member 15 disposed on the side of the first valve core 13 away from the first air inlet end 40, and a coil sleeved on the outside of the inflation valve body housing 1 corresponding to the first air guide cavity 10, wherein the coil is used to drive the first valve core 13 to move along the axial direction of the first air guide cavity 10;

[0050] The second switch assembly includes a second valve core 23 disposed in the second air guide cavity 10, a second elastic member 25 disposed side by side with the first elastic member 15, and a coil sleeved on the outside of the inflation valve body housing 1 corresponding to the second air guide cavity 20, and the coil is used to drive the second valve core 23 to move along the axial direction of the first air guide cavity 10;

[0051] On the inflation valve body shell 1 and the deflation valve body shell 2, a U-shaped iron 3 connected to the inflation valve body shell 1 and the deflation valve body shell 2 is straddled on the coil.

[0052] For further information, please refer to Figure 2 As shown, the first switch assembly also includes a first rubber cap 12 provided at the end of the first valve core 13 close to the first air inlet end 40, a second rubber cap 14 provided at the end of the first valve core 13 away from the first air inlet end 40, and a first sealing portion 16, and the first sealing portion 16 can be optionally an O-ring.

[0053] Specifically, the first valve core 13 is coaxially arranged with the inflation valve body shell 1 and is arranged in the first air guide cavity 10, and can be moved in the first air guide cavity 10 along the extension direction of the first air guide cavity 10. The end of the first valve core 13 close to the first air inlet end 40 is a first blocking portion, and the end away from the first air inlet end 40 is a second blocking portion; the outer wall of the first valve core 13 is provided with an air guide groove, and the air guide groove and the inner wall of the first air guide cavity 10 form a gap for gas to pass through.

[0054] Furthermore, the second switch assembly also includes a third rubber cap 22 provided at the end of the second valve core 23 close to the second air inlet end 50, a fourth rubber cap 24 provided at the end of the second valve core 23 away from the second air inlet end 50, and a second sealing portion 26, and the second sealing portion 26 can be optionally an O-ring.

[0055] Specifically, the second valve core 23 is coaxially arranged with the exhaust valve body shell 2 and is arranged in the second air guide cavity 20, and can be moved in the second air guide cavity 20 along the extension direction of the second air guide cavity 20. The end of the second valve core 23 close to the second air inlet end 401 is a third blocking part, and the end away from the second air inlet end 401 is a fourth blocking part; the outer wall of the second valve core 23 is provided with an air guide groove, and the air guide groove and the inner wall of the second air guide cavity 20 form a gap for gas to pass through.

[0056] Further, the first valve core 13 is away from the first air inlet end 40 side and is provided with a first plug in the first air guide cavity 10, the first plug is provided with the first elastic member 15, and the first elastic member 15 is arranged between the first plug and the first valve core 13; the second valve core 23 is away from the second air inlet end 401 side and is provided with a second plug in the second air guide cavity 20, the second plug is provided with the second elastic member 25, and the second elastic member 25 is arranged between the second plug and the second valve core 23, and the first elastic member 15 and the second elastic member 25 are retractable along the axial direction of the first air guide cavity 10 or the second air guide cavity 20.

[0057] In a preferred embodiment, a connecting passage is provided between the first air inlet end 40 and the second air inlet end 50 , one end of the connecting passage is connected to the charging port 18 , and the other end of the connecting passage is connected to the third air inlet 191 .

[0058] Furthermore, the first air inlet end 40 is provided with a first connecting end 401 , the second air inlet end 50 is provided with a second connecting end 501 , and the first connecting end 401 and the second connecting end 501 are plugged together to form the connecting passage.

[0059] Specifically, the first connecting end 401 is a connecting end formed by extending the first air inlet end 40 toward the second air inlet end 50 side and having an air path therein, and the connecting end is provided with a connecting port 201 which is connected to the air path therein, and the second connecting end 501 is a connecting end formed by extending the second air inlet end 50 toward the first air inlet end 40 side and having an air path therein, and when the first connecting end 401 and the second connecting end 501 are plugged in, the connecting port 201 is connected to the air path inside the second connecting end 501, and the air path inside the first connecting end 401 and the air path inside the second air inlet end 50 together form an L-shaped air path.

[0060] Furthermore, the plug-in position of the first connection end 401 and the second connection end 501 improves the sealing performance at the connection position through a connection sealing portion 9. Optionally, the connection sealing portion 9 is an O-ring.

[0061] Specifically, the first switch assembly has a first state and a second state. In the first state, the first blocking portion does not block the first air inlet 190 of the first air guiding cavity 10 close to the first air inlet end 40, so that the first air inlet 190 is connected to the first air guiding cavity 10. In the second state, the first blocking portion blocks the first air inlet 190 of the first air guiding cavity 10 close to the first air inlet end 40, so that the first air inlet 190 is blocked from the first air guiding cavity 10. The second switch assembly has a third state and a fourth state. In the third state, the third blocking portion does not block the third air inlet 191 of the second air guiding cavity 20 close to the second air inlet end 401, so that the connecting port is connected to the second air guiding cavity 20. In the fourth state, the third blocking portion blocks the third air inlet 191 of the second air guiding cavity 20 close to the second air inlet end 401, so that the connecting port is blocked from the second air guiding cavity 20.

[0062] When the air bag 8 needs to be inflated, please refer to Figure 1 and Figure 4 and Figure 5 As shown, the first switch assembly is in the first state and the second switch assembly is in the fourth state. At this time, the gas in the air source assembly flows through the air inlet pipeline of the controller and enters the inflation valve body 1-0 from the second air inlet 19. Since the first switch assembly is in the first state, the first blocking portion of the first valve core 13 does not block the first air guide cavity 10, and the second air inlet 19 is connected to the inflation port 18. Therefore, the gas flowing through the inflation valve body 1-0 is filled into the air unit from the inflation port 18 to achieve inflation.

[0063] When air bag 8 needs to be deflated, please refer to Figure 3 and Figure 6 and Figure 8As shown, the first switch assembly is in the second state and the second switch assembly is in the third state. At this time, the gas in the gas source assembly flows through the air inlet pipeline of the controller, and the gas from the gas unit flows out from the charging port 18 and enters from the first air inlet end 40. Since the first switch assembly is in the second state, the first blocking portion blocks the first air guide cavity 10. At this time, the gas cannot flow into the first air guide cavity 10. The gas flows along the first air inlet end 40 through the L-shaped air path to the connecting port. Since the second switch assembly is in the third state at this time In this state, the third blocking portion does not block the third air inlet 191 provided in the second air guide cavity 20 near the second air inlet end 50. Therefore, the third air inlet 191 is connected with the second air guide cavity 20 through the connecting port 201. The gas flows directly from the second air inlet end 401 through the connecting port through the third air inlet 191 into the second air guide cavity 20 without passing through the first air guide cavity 10, and then leaks out from at least one of the air leaking ports 200 connected with the second air guide cavity 20 to achieve air leaking.

[0064] Furthermore, the air leakage port 200 is disposed at an end of the second air guiding cavity 20 away from the third air inlet 191 and / or at an end close to the third air inlet 191 .

[0065] Specifically, in order to further increase the speed of gas deflation, the traditional gas deflation port is set on the second plug, and the gas flows out from the gas deflation port through the narrow gap between the second valve core 23 in the second air guide cavity 20 of the gas deflation valve body 2-0 and the gas deflation valve body shell 2. However, the number of gas deflation ports is small, and the gas resistance passing through the narrow gap is large, resulting in a slow gas deflation speed. Therefore, this embodiment makes improvements on this.

[0066] Optionally, the second air guide cavity 20 is connected to two air leak ports 200, one of which is to retain the position of the traditional air leak port 200, that is, the second air guide cavity 20 is away from the second air inlet end 401, which is the original air leak port 200. On this basis, another air leak port is provided at the second air inlet end 401, which is a newly added air leak port 200. The newly added air leak port 200 is provided at a position of the second air guide cavity 20 close to the second air inlet end 401. When the third plug is not blocked, the gas can be leaked from both the newly added air leak port 200 and the original air leak port 200. The increase in the number of air leak channels can further increase the air leak speed.

[0067] In a preferred embodiment, a first gap is provided between the inflation valve body shell 1 and the deflation valve body shell 2; and a magnetic connection preventing opening 31 is provided on the U-shaped iron 3 at a position opposite to the first gap.

[0068] Specifically, the U-shaped iron 3 can play a magnetic conductive role and can also fix the inflation valve body 1-0 and the deflation valve body 2-0. In addition, the U-shaped iron 3 may expand the magnetic field generated by one coil to another coil, resulting in the problem of magnetic connection between the two coils. In order to avoid this problem, the U-shaped iron 3 is also provided with an opening 31 to avoid magnetic connection, which ensures that the magnetic field generated by the coil on one valve body does not affect the valve core in the other valve body, thereby avoiding abnormal operation of adjacent valve bodies that are not powered on.

[0069] Furthermore, the U-shaped iron 3 is provided with an escape opening adapted to the shapes of the first air inlet end 40 and the second air inlet end 401 , and the escape opening is used to escape and fix the inflation valve body shell 1 and the deflation valve body shell 2 .

[0070] Furthermore, the part of the U-shaped iron 3 connected to the inflation valve body shell 1 is a first connection part, and the part connected to the deflation valve body shell 2 is a second connection part, and the first connection part and the second connection part together constitute the U-shaped iron 3; along the extension direction of the first air guide cavity 10, the ends of the first connection part and the second connection part on the same side can be arranged integrally or separately.

[0071] Specifically, either the first connection portion and the second connection portion are integrally arranged close to the first air inlet end 40 and separately arranged away from the first air inlet end 40, or the first connection portion and the second connection portion are separately arranged close to the first air inlet end 40 and the first connection portion and the second connection portion are integrally arranged away from the first air inlet end 40.

[0072] For further information, please refer to Fig.13 As shown, when the first connecting part and the second connecting part are integrally arranged close to the first air inlet end 40 and separately arranged away from the first air inlet end 40, a magnetic field barrier 5 is inserted between the first connecting part and the second connecting part away from the first air inlet end 40 to avoid magnetic field interference generated by the coils of the two valve bodies.

[0073] In a preferred embodiment, the part of the U-shaped iron connected to the inflation valve body shell 1 is the first connection part, and the part connected to the deflation valve body shell 2 is the second connection part. The first connection part and the second connection part together constitute the U-shaped iron 3, and the first connection part and the second connection part are integrally or separately arranged.

[0074] Specifically, the U-shaped iron 3 can be a structure with a front end connection, such as Fig. 9 , or it can be a structure with front and rear ends connected and a window 32 in the middle, such as Fig.10 , it can also be a structure with a rear end connected and a front end and a middle window 32, such as Fig.11 The structure of the middle window 32 is used to avoid pins.

[0075] In a preferred embodiment, a quick plug 4 is detachably connected to the first air inlet end 40 .

[0076] Specifically, Fig.12 As shown, the sealing effect is enhanced between the quick plug 4 and the first air inlet end 40 through a third sealing portion 41 , wherein the third sealing portion 41 may be an O-ring.

[0077] Example 2

[0078] Based on Example 1, this example proposes a controller device, comprising a controller housing and a plurality of valve bodies that are resistant to pulsating airflow impact as described above; at least one of the valve bodies that are resistant to pulsating airflow impact is arranged in the controller housing; an air intake channel is provided inside the controller housing, and the air intake channel is used to connect the air source component and the second air inlet 19 of all the valve bodies that are resistant to pulsating airflow impact.

[0079] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A valve body resistant to pulsating airflow impact, characterized in that: include: An inflation valve body shell (1), wherein a first air guide cavity (10) is provided in the inflation valve body shell (1), wherein one end of the first air guide cavity (10) along its extension direction has a first air inlet end (40), wherein the first air inlet end (40) comprises an inflation port (18) for communicating with an air unit, a first air inlet (190) for communicating with the inflation port (18), and a second air inlet (19) for communicating with an air source component, wherein the second air inlet (19) is always in communication with the first air guide cavity (10); a first switch assembly, the first switch assembly being arranged on a side of the first air inlet (190) away from the inflation port (18), and being used for controlling whether the first air inlet (190) is connected to or blocked from the first air guide cavity (10); a deflation valve body shell (2), the deflation valve body shell (2) being arranged side by side with the inflation valve body shell (1), a second air guide cavity (20) being provided in the deflation valve body shell (2), the second air guide cavity (20) having a second air inlet end (50) in communication with the first air inlet end (40) at an end portion along its extension direction on the same side as the first air inlet end (40), the second air inlet end (50) comprising a third air inlet port (191) in communication with the inflation port (18), and the second air guide cavity (20) being provided with at least one deflation port (200); A second switch assembly, the second switch assembly being arranged side by side with the first switch assembly and being used to control the connection or blocking between the third air inlet (191) and the second air guide cavity (20).

2. The valve body resistant to pulsating airflow impact according to claim 1 is characterized in that: The air leakage port (200) is arranged at an end of the second air guide cavity (20) away from the third air inlet (191) and / or at an end close to the third air inlet (191).

3. The valve body resistant to pulsating airflow impact according to claim 1, characterized in that: A connecting passage (54) is provided between the first air inlet end (40) and the second air inlet end (50); one end of the connecting passage (54) is connected to the inflation port (18), and the other end is connected to the third air inlet (191).

4. The valve body resistant to pulsating airflow impact according to claim 3 is characterized in that: The first air inlet end (40) is provided with a first connecting end (401), the second air inlet end (50) is provided with a second connecting end (501), and the first connecting end (401) and the second connecting end (501) are plugged together to form the connecting passage (54).

5. The valve body resistant to pulsating airflow impact according to claim 1, characterized in that: The first switch assembly comprises a first valve core (13) arranged in the first air guide cavity (10), a first elastic member (15) arranged on the side of the first valve core (13) away from the first air inlet end (40), and a coil sleeved on the outside of the inflation valve body shell (1) corresponding to the first air guide cavity (10), the coil being used to drive the first valve core (13) to move along the axial direction of the first air guide cavity (10); The second switch assembly comprises a second valve core (23) arranged in the second air guide cavity (20), a second elastic member (25) arranged side by side with the first elastic member (15), and a coil sleeved on the outside of the inflation valve body shell (1) corresponding to the second air guide cavity (20), the coil being used to drive the second valve core (23) to move along the axial direction of the first air guide cavity (10); On the inflation valve body shell (1) and the deflation valve body shell (2), a U-shaped iron (3) connected to the inflation valve body shell (1) and the deflation valve body shell (2) is arranged across the coil.

6. The valve body resistant to pulsating airflow impact according to claim 5, characterized in that: A first gap is provided between the inflation valve body shell (1) and the deflation valve body shell (2); and a magnetic connection preventing opening (31) is provided on the U-shaped iron (3) at a position relative to the first gap.

7. The valve body resistant to pulsating airflow impact according to claim 6, characterized in that: The portion of the U-shaped iron (3) connected to the inflation valve body shell (1) is a first connection portion, and the portion connected to the deflation valve body shell (2) is a second connection portion, and the first connection portion and the second connection portion together constitute the U-shaped iron (3); along the extension direction of the first air guide cavity (10), the ends of the first connection portion and the second connection portion on the same side can be arranged integrally or separately.

8. The valve body resistant to pulsating airflow impact according to claim 7, characterized in that: When the first connection part and the second connection part are integrally arranged close to the first air inlet end (40) and separately arranged away from the first air inlet end (40), a magnetic field barrier (5) is inserted between the first connection part and the second connection part away from the first air inlet end (40).

9. The valve body resistant to pulsating airflow impact according to claim 1, characterized in that: The first air inlet end (40) is detachably connected to a quick plug (4).

10. A controller device, characterized in that: It comprises a controller housing and a plurality of valve bodies capable of resisting pulsating airflow impact as described in any one of claims 1 to 9; at least one of the valve bodies capable of resisting pulsating airflow impact is arranged in the controller housing; an air inlet channel is arranged inside the controller housing, and the air inlet channel is used to connect the air source component and the second air inlet (19) of all the valve bodies capable of resisting pulsating airflow impact.

Images