CN117967837A - Integrated valve - Google Patents

Abstract

The application relates to an integrated valve, which comprises a valve body, a check valve and an exhaust valve. The valve body is provided with an air inlet hole, an air outlet hole, a first air outlet hole and a first valve cavity. The air inlet hole, the first valve cavity and the air outlet hole are sequentially communicated, and the first air outlet hole is communicated with the air inlet hole. The check valve is arranged in the first valve cavity so that the gas flows along the direction from the air inlet hole to the air outlet hole. The exhaust valve has an open state in which the gas flows in a direction from the gas inlet hole to the first gas outlet hole, and a closed state. In the closed state, the gas flows in the direction from the gas inlet hole to the gas outlet hole. Before each start of the compressor, the exhaust valve can be opened first to exhaust the gas between the compressor and the check valve, so that no-load start is realized, the instantaneous starting current of the compressor is reduced, and the cruising ability of the lithium-ion compressor is improved. In addition, by integrating the check valve and the exhaust valve, the volume is reduced, so that the compressor can realize the whole machine function under the smaller volume.

Description

Integrated valve

Technical Field

The application relates to the technical field of air compression equipment, in particular to an integrated valve.

Background

A check valve, an exhaust valve and the like are arranged between the traditional compressor and the air storage tank, and the check valve, the exhaust valve and the like are generally installed on the air pipe in a threaded connection mode during installation. However, this mounting method results in a large overall volume and also has the potential for gas leakage.

Disclosure of Invention

Based on this, it is necessary to provide an integrated valve that reduces the volume while also reducing the risk of leakage.

An integrated valve, comprising:

The valve body is provided with an air inlet hole, an air outlet hole, a first air outlet hole and a first valve cavity, the air inlet hole is used for being communicated with the compressor, the air outlet hole is used for being communicated with the air tank, the air inlet hole, the first valve cavity and the air outlet hole are sequentially communicated, and the first air outlet hole is communicated with the air inlet hole and the first valve cavity;

the check valve is arranged in the first valve cavity; and

A discharge valve provided corresponding to the first discharge hole, the discharge valve having an open state in which gas between the gas inlet hole and the check valve is discharged from the first discharge hole, and a closed state; in the closed state, gas enters the first valve cavity through the gas inlet hole and is discharged from the gas outlet hole.

In one embodiment, the first exhaust vent communicates with the inlet vent and the passage between the first valve chamber; the air inlet hole and the first air outlet hole are arranged along a first direction, and the first valve cavity and the air outlet hole are arranged along a second direction; wherein the first direction intersects the second direction.

In one embodiment, a first opening is formed in one end of the cavity wall of the first valve cavity along the second direction, an air outlet connecting piece is arranged in the first opening, and the air outlet connecting piece is provided with the air outlet hole; the check valve comprises a bottom piece, a first elastic piece and a first sealing piece, wherein a second opening is formed in one side, away from the air outlet connecting piece, of the cavity wall of the first valve cavity, the bottom piece is arranged in the first valve cavity through the second opening and is connected with the cavity wall of the first valve cavity, the bottom piece is provided with a first vent hole, and the first vent hole is communicated with the air inlet hole and the air outlet hole; the first sealing piece is arranged between the bottom piece and the air outlet connecting piece; one end of the first elastic piece is connected with the first sealing piece, the other end of the first elastic piece is connected with the air outlet connecting piece, and the first elastic piece stretches along the second direction; the check valve has an open state in which the first seal is separated from the wall of the first vent hole, and a closed state; in the closed state, the first seal seals the first vent hole.

In one embodiment, the cavity wall of the first valve cavity is provided with at least two protruding parts, all protruding parts are arranged at intervals along the circumferential direction of the first valve cavity, and the protruding parts extend along the second direction; the first sealing piece is arranged in a space, corresponding to the first valve cavity, of the protruding portion, the outer circumferential surface of the first sealing piece is in contact with one side, away from the cavity wall of the first valve cavity, of the protruding portion, the outer circumferential surface of the first sealing piece and two adjacent protruding portions enclose to form an air flow channel, and the air flow channel is communicated with the first vent hole and the air outlet hole.

In one embodiment, a first plane part is arranged on one side of the bottom piece facing the first sealing piece, a second plane part is arranged on one side of the first sealing piece facing the bottom piece, and the area of the second plane part is larger than or equal to the sectional area of the first vent hole; when the check valve is in a closed state, the second flat portion is fitted with the first flat portion to close the first vent hole.

In one embodiment, the integrated valve further comprises a relief valve mounted to the valve body; and when the pressure in the first valve cavity exceeds a preset pressure value, the safety valve is opened to discharge the gas in the first valve cavity.

In one embodiment, the valve body is further provided with a second valve cavity, the cavity wall of the second valve cavity is provided with a second vent hole, and the second valve cavity is communicated with the first valve cavity through the second vent hole; the cavity wall of the second valve cavity is also provided with a third opening, and the third opening is arranged opposite to the second ventilation hole; the safety valve comprises a valve cover, a second elastic piece and a second sealing piece, one end of the valve cover is arranged in the second valve cavity through the third opening and is connected with the cavity wall of the second valve cavity, and the valve cover is provided with a second exhaust hole communicated with the second valve cavity; the second elastic piece and the second sealing piece are arranged in the second valve cavity, one end of the second elastic piece is connected with the valve cover, and the other end of the second elastic piece is connected with the second sealing piece; the safety valve has an open state in which the second seal is separated from the wall of the second vent hole, and a closed state in which the second seal blocks the second vent hole.

In one embodiment, the valve body is further provided with a detection port, and the detection port is communicated with the first valve cavity; the integrated valve further comprises a pressure sensor, and the pressure sensor is arranged in the detection port and used for detecting the air pressure at the detection port.

In one embodiment, the integrated valve further comprises an integrated circuit board, and the pressure sensor is arranged on the integrated circuit board and is electrically connected with the integrated circuit board; the valve body corresponds the position of detecting the mouth is equipped with the storage tank, the storage tank with detect mouthful intercommunication, the integrated circuit board is located in the storage tank.

In one embodiment, the valve body is further provided with a drain hole, and the drain hole is communicated with the first valve cavity; the integrated valve further comprises a drain valve, and the drain valve is arranged in the drain hole.

According to the integrated valve, the first exhaust hole is communicated with the air inlet hole and the channel between the first valve cavity, and the exhaust valve is arranged corresponding to the first exhaust hole, so that before the compressor is started each time, the exhaust valve can be opened first, gas between the compressor and the check valve is discharged, no-load starting is realized, the instantaneous starting current of the compressor is reduced, and the cruising ability of the lithium-ion electric compressor is improved. In addition, through being in the same place check valve and discharge valve integration, be favorable to reducing the volume to the compressor can realize the complete machine function under less volume, and easy to assemble maintenance reduces the risk that appears gas leakage simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of an integrated valve according to an embodiment of the present application.

Fig. 2 is an exploded view of an integrated valve according to an embodiment of the present application.

Fig. 3 is a front view of the integrated valve shown in fig. 1.

Fig. 4 is a cross-sectional view taken along A-A in fig. 3.

Fig. 5 is a side view of the integrated valve shown in fig. 3.

Fig. 6 is a cross-sectional view taken along B-B in fig. 5.

Fig. 7 is a schematic structural view of a valve body according to an embodiment of the present application.

Reference numerals illustrate:

10. A valve body; 11. an air inlet hole; 12. an air outlet hole; 13. a first exhaust hole; 14. a first valve chamber; 141. a boss; 142. an air flow channel; 15. a second exhaust hole; 16. a second valve chamber; 161. a second vent hole; 17. a detection port; 18. a drain hole; 20. a check valve; 21. a base member; 211. a first vent hole; 22. a first seal; 23. a first elastic member; 30. an exhaust valve; 31. a housing; 32. a coil; 33. a valve core; 34. a third elastic member; 35. a third seal; 40. a safety valve; 41. a valve cover; 42. a second elastic member; 43. a second seal; 50. a pressure sensor; 51. an integrated circuit board; 52. a water barrier; 60. a drain valve; 70. an air intake connection; 80. and an air outlet connector.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

Referring to fig. 1 and 2, an integrated valve according to an embodiment of the present application includes a valve body 10, a check valve 20, and an exhaust valve 30.

Referring to fig. 1 and 2, the valve body 10 is provided with an air inlet hole 11, an air outlet hole 12, a first air outlet hole 13, and a first valve chamber 14. The air inlet hole 11 is used for communicating with the compressor, and the air outlet hole 12 is used for communicating with the air tank. Referring to fig. 4, the air inlet hole 11, the first valve chamber 14, and the air outlet hole 12 are sequentially communicated. The first exhaust hole 13 communicates with the intake hole 11, and optionally, the first exhaust hole 13 communicates with a passage between the intake hole 11 and the first valve chamber 14.

In this embodiment, the compressor is a lithium-ion compressor. Of course, in other embodiments, the compressor may be other types of compressors, and is not limited thereto.

Referring to fig. 4, a check valve 20 is provided in the first valve chamber 14 to allow the gas to flow in the direction from the gas inlet hole 11 to the gas outlet hole 12.

Referring to fig. 4, the exhaust valve 30 is disposed corresponding to the first exhaust hole 13. In the open state, the gas between the gas inlet hole 11 and the check valve 20 is discharged from the first gas outlet hole 13; in the closed state, gas enters the first valve chamber 14 through the gas inlet hole 11 and is discharged from the gas outlet hole 12.

According to the integrated valve, as the first exhaust hole 13 is communicated with the air inlet hole 11 and the channel between the first valve cavity 14, the exhaust valve 30 is arranged corresponding to the first exhaust hole 13, so that before the compressor is started each time, the exhaust valve 30 can be opened, the air between the compressor and the check valve 20 is exhausted, no-load starting is realized, the instantaneous starting current of the compressor is reduced, and the cruising ability of the lithium-ion compressor is improved. In addition, by integrating the check valve 20 and the discharge valve 30, it is advantageous to reduce the volume so that the compressor can perform the entire function in a smaller volume.

In one embodiment, referring to fig. 4, the air intake holes 11 and the first air exhaust holes 13 are arranged along a first direction, and the air intake holes 11 are disposed opposite to the first air exhaust holes 13. When the exhaust valve 30 is in an open state, gas introduced into the valve body 10 through the gas inlet hole 11 is exhausted from the first exhaust hole 13. Since the air inlet hole 11 and the first air outlet hole 13 are arranged along the first direction, the air inlet hole 11 and the first air outlet hole 13 are arranged opposite to each other, so that the air outlet path of the air can be shortened, and the air can be quickly discharged from the first air outlet hole 13.

Further, referring to fig. 4, the first valve chamber 14 and the air outlet holes 12 are arranged along the second direction. Wherein the first direction intersects the second direction. Optionally, the first direction is perpendicular to the second direction. In this way, through reasonably arranging the air inlet hole 11, the air outlet hole 12, the first air outlet hole 13 and the first valve cavity 14 on the valve body 10, the installation of the compressor, the air outlet valve 30 and the air tank is facilitated, and the installation interference of the compressor, the air outlet valve 30 and the air tank is avoided.

Taking the orientation of the present embodiment as an example, the air inlet hole 11 is disposed below the valve body 10, the first air outlet hole 13 is disposed above the valve body 10, and the air outlet hole 12 is disposed on the right side of the valve body 10.

In one embodiment, referring to fig. 2 and 4, the valve body 10 is provided with an outlet connection 80. Specifically, one end of the first valve chamber 14 in the second direction is provided with a first opening, and one end of the air outlet connector 80 is provided in the first valve chamber 14 through the first opening and is connected to a chamber wall of the first valve chamber 14. The air outlet hole 12 is provided in the air outlet connector 80. Thus, by arranging the air outlet connecting piece 80, when in installation, the air tank is connected with the air outlet connecting piece 80, and the air tank is convenient to be connected with the integrated valve.

Alternatively, referring to fig. 4, the outer peripheral surface of the air outlet connector 80 is provided with threads, the position of the cavity wall of the first valve cavity 14 corresponding to the first opening is provided with threads, and one end of the air outlet connector 80 is disposed in the first valve cavity 14 through the first opening and is in threaded connection with the cavity wall of the first valve cavity 14.

Further, referring to fig. 2 and 4, the check valve 20 includes a base 21, a first elastic member 23, and a first sealing member 22. Specifically, the side of the wall of the first valve chamber 14 facing away from the outlet connector 80 is provided with a second opening, and the bottom piece 21 is provided in the first valve chamber 14 through the second opening and is connected to the wall of the first valve chamber 14. The base 21 is provided with a first vent hole 211, and the first vent hole 211 is communicated with the air inlet hole 11 and the air outlet hole 12. Alternatively, the first vent hole 211 is disposed opposite the air outlet hole 12 in the second direction. The first seal 22 is provided between the base 21 and the outlet connection 80. One end of the first elastic member 23 is connected to the first sealing member 22, the other end of the first elastic member 23 is connected to the air outlet connector 80, and the first elastic member 23 stretches and contracts along the second direction. The check valve 20 has an open state in which the first seal 22 is separated from the first vent hole 211 to leak out of the first vent hole 211, and a closed state. In the closed state, the first seal member 22 closes the first vent hole 211.

Before the compressor operates, under the action of the first elastic member 23, the first sealing member 22 is pressed against the base member 21, so that the first sealing member 22 seals the first ventilation hole 211, and at this time, gas cannot enter the first valve cavity 14 from the first ventilation hole 211.

When the compressor is running, gas reaches the first vent hole 211 through the gas inlet 11. When the air pressure is greater than the elastic force of the first elastic member 23, the first sealing member 22 moves away from the base member 21 under the action of the air pressure, and the first sealing member 22 is separated from the base member 21 to expose the first vent hole 211, so that the air can enter the first valve cavity 14 through the first vent hole 211 and further enter the air tank from the air outlet hole 12. In the process, the first elastic member 23 is in a compressed state. When the air pressure is less than or equal to the elastic force of the first elastic member 23, the first sealing member 22 moves in a direction approaching the base member 21 under the elastic restoring force of the first elastic member 23 until the first sealing member 22 closes the first vent hole 211.

In one embodiment, referring to fig. 6 and 7, the chamber wall of the first valve chamber 14 is provided with at least two protrusions 141. Alternatively, the protruding portion 141 is a protruding strip. All the protruding portions 141 are arranged at intervals along the circumferential direction of the first valve chamber 14, and the protruding portions 141 are arranged to extend in the second direction. The first sealing member 22 is disposed in a space of the first valve cavity 14 corresponding to the boss 141, an outer peripheral surface of the first sealing member 22 contacts with one side of the boss 141 away from a cavity wall of the first valve cavity 14, an air flow channel 142 is formed by surrounding the outer peripheral surface of the first sealing member 22 and two adjacent bosses 141, and the air flow channel 142 is communicated with the first vent hole 211 and the air outlet hole 12. In use, when the check valve 20 is in an open state, gas may enter the gas flow passage 142 from the first vent hole 211 and then enter the gas tank through the gas outlet hole 12.

By arranging the protruding portion 141 on the cavity wall of the first valve cavity 14, under the action of the first elastic member 23, the first sealing member 22 can move along the protruding portion 141, and the protruding portion 141 plays a role in supporting and guiding the first sealing member 22, so that the first sealing member 22 can stably move along the second direction, and the sealing effect of the first sealing member 22 is improved. In addition, the check valve 20 is also beneficial to reduce the volume, and thus the volume of the integrated valve.

Further, referring to fig. 3 and 4, a side of the base member 21 facing the first sealing member 22 is provided with a first flat portion, and a side of the first sealing member 22 facing the base member 21 is provided with a second flat portion having an area larger than or equal to a sectional area of the first ventilation hole 211. When the check valve 20 is in the closed state, the first flat portion is fitted to the second flat portion, and the second flat portion covers the first vent hole 211 to block the first vent hole 211. In use, when the pressure of the gas flowing through the first vent hole 211 is greater than the elastic force of the first elastic member 23, the first sealing member 22 moves away from the base member 21 under the action of the air pressure, so that the second plane portion is separated from the first plane portion, and thus the gas can enter the gas flow channel 142 through the first vent hole 211. In this way, as long as the second plane portion is separated from the first plane portion, that is, the first ventilation hole 211 is not blocked by the second plane portion, the gas can enter the gas flow channel 142 through the first ventilation hole 211 for circulation, so that the gas circulation time can be quickened, and meanwhile, the flow rate of the gas is not increased or reduced along with the increase of the distance between the second plane portion and the first plane portion, so that the flow rate of the gas is constant.

In the present embodiment, the first planar portion of the base 21 abuts against the end portion of the boss 141 in the second direction.

In one embodiment, referring to FIG. 4, the valve body 10 is provided with an intake connection 70. Specifically, the valve body 10 is provided with a mounting hole, and one end of the air intake connector 70 is provided in the mounting hole and connected to the wall of the mounting hole. The intake hole 11 is provided at the intake connector 70. By providing the inlet connection 70, the inlet connection 70 is connected to the compressor, which facilitates the connection of the compressor to the integrated valve.

Optionally, the outer peripheral surface of the air inlet connector 70 is provided with threads, the hole wall of the mounting hole is provided with threads, and one end of the air inlet connector 70 is arranged in the mounting hole and is in threaded connection with the hole wall of the mounting hole.

In one embodiment, referring to fig. 1 and 5, the integrated valve further includes a relief valve 40, and the relief valve 40 is mounted to the valve body 10. When the pressure in the first valve cavity 14 exceeds the preset pressure value in use, the safety valve 40 is opened, and the gas in the first valve cavity 14 can be discharged to play a role in safety protection, so that the use safety is improved.

Further, referring to fig. 1, 2 and 6, the valve body 10 is further provided with a second valve cavity 16, a cavity wall of the second valve cavity 16 is provided with a second vent hole 161, and the second valve cavity 16 is communicated with the first valve cavity 14 through the second vent hole 161. The wall of the second valve chamber 16 is also provided with a third opening, which is arranged opposite to the second ventilation hole 161. Referring to fig. 2, the safety valve 40 includes a valve cover 41, a second elastic member 42, and a second sealing member 43, wherein one end of the valve cover 41 is disposed in the second valve cavity 16 through a third opening and is connected to a cavity wall of the second valve cavity 16, and the valve cover 41 is provided with a second exhaust hole 15. The second elastic member 42 and the second seal member 43 are disposed in the second valve chamber 16, one end of the second elastic member 42 is connected to the valve cover 41, and the other end of the second elastic member 42 is connected to the second seal member 43.

Specifically, the relief valve 40 has an open state and a closed state. In the open state, the second seal 43 closes the second vent hole 161. In the closed state, the second seal 43 is separated from the wall of the second vent hole 161.

When the safety valve 40 is in the closed state, the second seal 43 closes the second vent hole 161, and the gas in the first valve chamber 14 cannot enter the second valve chamber 16 through the second vent hole 161, and cannot be discharged from the second exhaust hole 15.

When the air pressure in the first valve chamber 14 and the second valve chamber 16 exceeds the preset pressure value, it may also be understood that when the air pressure exceeds the elastic force of the second elastic member 42, the second sealing member 43 moves away from the second vent hole 161 under the action of the air pressure, and the second elastic member 42 is compressed, so that the air in the second valve chamber 16 may enter the second valve chamber 16 through the second vent hole 161 and be discharged from the second exhaust hole 15. Therefore, the air pressure can be reduced, and the use safety is improved. When the air pressure is less than or equal to the preset pressure value, the second sealing member 43 moves towards the direction close to the second vent hole 161 under the elastic restoring force of the second elastic member 42 to block the second vent hole 161, so that the air in the first valve cavity 14 cannot enter the second valve cavity 16 through the second vent hole 161, and cannot be discharged from the second vent hole 15.

It should be noted that, the safety valve 40, the check valve 20 and the exhaust valve 30 are integrated together, which can improve the use safety, and is beneficial to reducing the volume, so that the compressor can realize the function of the compressor of the whole machine under the smaller volume.

In one embodiment, the valve body 10 is further provided with a detection port 17, said detection port 17 being in communication with said first valve chamber 14. Referring to fig. 2, the integrated valve further includes a pressure sensor 50, and the pressure sensor 50 is disposed in the detection port 17 for detecting the air pressure in the detection port 17. When in use, the pressure sensor 50 detects the air pressure in the detection port 17 in real time to realize the detection of the air pressure in the first valve cavity 14, and transmits the air pressure value to the upper main control board to realize the display and control of the pressure.

Further, referring to fig. 2, the integrated valve further includes an integrated circuit board 51, and the pressure sensor 50 is disposed on the integrated circuit board 51 and electrically connected to the integrated circuit board 51. Specifically, a fourth opening is provided at one end of the detection opening 17 facing away from the first valve cavity 14, a receiving groove is provided at a position of the valve body 10 corresponding to the fourth opening, the receiving groove is communicated with the fourth opening, the integrated circuit board 51 is disposed in the receiving groove, and the pressure sensor 50 is disposed in the detection opening 17 through the fourth opening. In this way, the pressure sensor 50 is arranged on the integrated circuit board 51, so that the integration of the pressure sensor 50 and the integrated circuit board 51 is realized, the volume of the integrated valve is reduced, and the compressor can realize the function of the whole machine in a smaller volume. In addition, by providing the accommodating groove on the valve body 10, the integrated circuit board 51 is provided in the accommodating groove, so that stable installation of the integrated circuit board 51 can be realized, and meanwhile, the integrated circuit board 51 can be prevented from being exposed to occupy space.

In one embodiment, referring to fig. 2, the detection hole is further provided with a water blocking member 52, and the water blocking member 52 is disposed on a side of the pressure sensor 50 facing the first valve chamber 14. It will also be appreciated that the spacer 52 is provided on the side of the pressure sensor 50 facing away from the integrated circuit board 51. Thus, by providing the water blocking member 52, the water blocking member 52 can isolate water in the compressed air, and the accuracy of the pressure sensor 50 is not affected.

Optionally, the spacer 52 is a gas permeable water screen. Of course, in other embodiments, the water-proof member 52 may be other members, not limited thereto.

In one embodiment, referring to fig. 1, the valve body 10 is further provided with a drain hole 18, and the drain hole 18 communicates with the first valve chamber 14. The integrated valve further comprises a drain valve 60, and the drain valve 60 is arranged in the drain hole 18. Water may be present in the compressed air, and thus in this embodiment a drain valve 60 is provided, which is opened to drain the water from the first valve chamber 14.

Alternatively, the drain valve 60 is a manual drain valve 60. Of course, in other embodiments, the drain valve 60 may be an electric drain valve 60, which is not limited thereto.

In one embodiment, the exhaust valve 30 is an electromagnetic exhaust valve 30. Specifically, referring to fig. 2, the exhaust valve 30 includes a housing 31, a coil 32, a third elastic member 34, a valve core 33, and a third sealing member 35. The coil 32 and the third elastic member 34 are provided in the housing 31, and one end of the third elastic member 34 is connected to the housing 31 and the other end is connected to the valve element 33. The third sealing member 35 is connected to one end of the spool 33, and the coil 32 is sleeved on the other end of the spool 33. When the coil 32 is electrified, the valve core 33 drives the third sealing element 35 to move in a direction away from the first exhaust hole 13 so as to expose the first exhaust hole 13, and the third elastic element 34 is in a compressed state at the moment, so that the gas with pressure between the check valve 20 and the compressor can be discharged before the compressor is started, no-load starting is realized, the compressor is prevented from being started under pressure, the instantaneous starting current of the compressor is reduced, and the cruising ability of the lithium-ion electric compressor is improved. When the coil 32 is powered off, the spool 33 moves in a direction approaching the first exhaust hole 13 by the third elastic member 34 until the third sealing member 35 seals the first exhaust hole 13.

Of course, in other embodiments, the exhaust valve 30 may be a manual exhaust valve 30, which is not limited thereto.

In the description of the present application, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. An integrated valve, comprising:

The valve body is provided with an air inlet hole, an air outlet hole, a first air outlet hole and a first valve cavity, the air inlet hole is used for being communicated with the compressor, the air outlet hole is used for being communicated with the air tank, the air inlet hole, the first valve cavity and the air outlet hole are sequentially communicated, and the first air outlet hole is communicated with the air inlet hole and the first valve cavity;

the check valve is arranged in the first valve cavity; and

A discharge valve provided corresponding to the first discharge hole, the discharge valve having an open state in which gas between the gas inlet hole and the check valve is discharged from the first discharge hole, and a closed state; in the closed state, gas enters the first valve cavity through the gas inlet hole and is discharged from the gas outlet hole.

2. The integrated valve of claim 1, wherein the first exhaust vent is in communication with a passage between the intake vent and the first valve chamber;

The air inlet hole and the first air outlet hole are arranged along a first direction, and the first valve cavity and the air outlet hole are arranged along a second direction; wherein the first direction intersects the second direction.

3. The integrated valve of claim 2, wherein a first opening is provided at one end of a chamber wall of the first valve chamber along the second direction, the first opening being provided with an air outlet connector, the air outlet connector being provided with the air outlet hole;

The check valve comprises a bottom piece, a first elastic piece and a first sealing piece, wherein a second opening is formed in one side, away from the air outlet connecting piece, of the cavity wall of the first valve cavity, the bottom piece is arranged in the first valve cavity through the second opening and is connected with the cavity wall of the first valve cavity, the bottom piece is provided with a first vent hole, and the first vent hole is communicated with the air inlet hole and the air outlet hole; the first sealing piece is arranged between the bottom piece and the air outlet connecting piece; one end of the first elastic piece is connected with the first sealing piece, the other end of the first elastic piece is connected with the air outlet connecting piece, and the first elastic piece stretches along the second direction;

The check valve has an open state in which the first seal is separated from the wall of the first vent hole, and a closed state; in the closed state, the first seal seals the first vent hole.

4. The integrated valve of claim 3, wherein a chamber wall of the first valve chamber is provided with at least two protrusions, all of the protrusions being disposed at intervals along a circumferential direction of the first valve chamber, and the protrusions being disposed to extend in the second direction; the first sealing piece is arranged in a space, corresponding to the first valve cavity, of the protruding portion, the outer circumferential surface of the first sealing piece is in contact with one side, away from the cavity wall of the first valve cavity, of the protruding portion, the outer circumferential surface of the first sealing piece and two adjacent protruding portions enclose to form an air flow channel, and the air flow channel is communicated with the first vent hole and the air outlet hole.

5. The integrated valve according to claim 3, wherein a side of the base member facing the first seal member is provided with a first flat surface portion, and a side of the first seal member facing the base member is provided with a second flat surface portion, an area of the second flat surface portion being larger than or equal to a sectional area of the first vent hole;

When the check valve is in a closed state, the second flat portion is fitted with the first flat portion to close the first vent hole.

6. The integrated valve of any one of claims 1 to 5, further comprising a relief valve mounted to the valve body; and when the pressure in the first valve cavity exceeds a preset pressure value, the safety valve is opened to discharge the gas in the first valve cavity.

7. The integrated valve of claim 6, wherein the valve body is further provided with a second valve cavity, a cavity wall of the second valve cavity is provided with a second vent hole, and the second valve cavity is communicated with the first valve cavity through the second vent hole; the cavity wall of the second valve cavity is also provided with a third opening, and the third opening is arranged opposite to the second ventilation hole;

The safety valve comprises a valve cover, a second elastic piece and a second sealing piece, one end of the valve cover is arranged in the second valve cavity through the third opening and is connected with the cavity wall of the second valve cavity, and the valve cover is provided with a second exhaust hole communicated with the second valve cavity; the second elastic piece and the second sealing piece are arranged in the second valve cavity, one end of the second elastic piece is connected with the valve cover, and the other end of the second elastic piece is connected with the second sealing piece; the safety valve has an open state in which the second seal is separated from the wall of the second vent hole, and a closed state in which the second seal blocks the second vent hole.

8. The integrated valve of any one of claims 1 to 5, wherein the valve body is further provided with a detection port, the detection port being in communication with the first valve chamber; the integrated valve further comprises a pressure sensor, and the pressure sensor is arranged in the detection port and used for detecting the air pressure at the detection port.

9. The integrated valve of claim 8, further comprising an integrated circuit board, the pressure sensor being disposed on and electrically connected to the integrated circuit board; the valve body corresponds the position of detecting the mouth is equipped with the storage tank, the storage tank with detect mouthful intercommunication, the integrated circuit board is located in the storage tank.

10. The integrated valve of any one of claims 1 to 5, wherein the valve body is further provided with a drain hole, the drain hole being in communication with the first valve chamber; the integrated valve further comprises a drain valve, and the drain valve is arranged in the drain hole.