CN222209184U - Gas valve, gas distribution device and pneumatic comfort system - Google Patents

Abstract

The utility model embodiment relates to the field of fluid control technology, and in particular discloses a gas valve, a gas distribution device and a pneumatic comfort system, including a valve body; a conducting chamber, and a first medium interface, a second medium interface, a third medium interface and a fourth medium interface connected to the conducting chamber are arranged on the valve body; a movable valve core is arranged in the conducting chamber; and the third medium interface is connected to the fourth medium interface; the gas valve has a first ventilation state in which the movable valve core cuts off the conduction between the conducting chamber and the first medium interface, and a second ventilation state in which the movable valve core cuts off the conduction of the second medium interface of the conducting chamber; when the gas valve is in the first ventilation state, the second medium interface is connected to the third medium interface and the fourth medium interface; when the gas valve is in the second ventilation state, the first medium interface is connected to the third medium interface and the fourth medium interface. In the above manner, the utility model embodiment can realize the switching control of the air intake gas path on the gas distribution device.

Description

Air valve, gas distribution device and pneumatic comfort system

Technical Field

The utility model relates to the technical field of fluid control, in particular to an air valve, an air distribution device and a pneumatic comfort system.

Background

The pneumatic comfort system, such as pneumatic massage system, pneumatic waist support system, pneumatic flank support system, etc., is connected with the air bag by means of air valve module. The air valve module is provided with a plurality of air valves, and each air valve is correspondingly connected with one air bag and controls the inflation and deflation of the corresponding air bag. In order to improve the integration effect of the air valve module, the air valve module is provided with a total air inlet air passage which is always connected with the air supply device, the air inlets of the air valves are communicated with the total air inlet air passage, air provided by the air source device enters the air valves of the air valve module through the total air inlet air passage, and a total air inlet switch valve is arranged to control the on-off between the total air inlet air passage and the air supply device.

However, when the air valve module is provided with a plurality of groups of air valve groups with different functional requirements, such as the air valve module is provided with the pneumatic massage valve group, the pneumatic waist support valve group and the pneumatic flank support valve group, and the air source device further comprises an air pump, an air storage tank and other air supply sources, the air path of the total air inlet air channel is switched according to different functional requirements so as to meet the air consumption requirements of different air valve groups, such as the air pump and the air storage tank are required to be inflated simultaneously when the rapid flank support is performed, and the flank air bag is controlled to be inflated rapidly by the pneumatic flank support valve group, and the air pump is only used for supplying air when the pneumatic massage is performed and the massage air bag is controlled to be inflated by the pneumatic massage valve group. However, the current straight-through type total air inlet air passage and the total air inlet switch valve thereon cannot meet corresponding functional requirements, when the air source device works and the total air inlet switch valve is opened, the total air inlet air passage is communicated with the air inlets of all air valves, and the air passage on-off of the air valve module and the air source device can only be realized by directly depending on the total air inlet switch valve, so that the air passage switching cannot be realized.

Disclosure of utility model

The utility model mainly aims to solve the problems that the total air inlet air channel of an air valve module in a pneumatic comfort system in the prior art cannot realize air channel switching and is difficult to meet the accurate air supply requirement, and provides an air valve, an air distribution device and the pneumatic comfort system.

The technical scheme includes that the air valve comprises a valve body, a conducting cavity, a first medium interface, a second medium interface, a third medium interface and a fourth medium interface, wherein the conducting cavity is formed in the valve body, the first medium interface, the second medium interface, the third medium interface and the fourth medium interface are communicated with the conducting cavity, a movable valve core is arranged in the conducting cavity, the third medium interface is communicated with the fourth medium interface, the air valve is provided with a first ventilation state enabling the movable valve core to cut off conduction between the conducting cavity and the first medium interface, and a second ventilation state enabling the movable valve core to cut off conduction between the conducting cavity and the second medium interface, when the air valve is in the first ventilation state, the second medium interface is conducted with the third medium interface and the fourth medium interface, and when the air valve is in the second ventilation state, the first medium interface is conducted with the third medium interface and the fourth medium interface.

Optionally, a first medium opening and a second medium opening are formed in the wall of the conducting cavity, the first medium opening is communicated with the first medium interface through a first air passage, the second medium opening is communicated with the second medium interface through a second air passage, the movable valve core is made to close the first medium opening to open the second medium opening so that the air valve is in the first ventilation state, and the movable valve core is made to close the second medium opening to open the first medium opening so that the air valve is in the second ventilation state.

Optionally, a coil is disposed on the valve body, and the movable valve core is displaced under the excitation action of the coil to close the first medium opening or the second medium opening.

Optionally, the air valve is provided with an elastic reset piece, and the elastic reset piece is connected between the movable valve core and the wall of the conducting cavity in an action manner so as to enable the movable valve core to normally close the first medium opening or the second medium opening.

Optionally, a first air pressure sensor is provided for detecting air pressure in the first air passage, and/or a second air pressure sensor is provided for detecting air pressure in the second air passage.

Optionally, the third medium interface is communicated with the fourth medium interface through a third air passage, and the conducting cavity is communicated with the third air passage through a fourth air passage so as to be communicated with the third medium interface and the fourth medium interface.

Optionally, the valve body comprises a first valve body and a second valve body which are in sealing connection, wherein the first medium interface and the conducting cavity are arranged on the first valve body, and the second medium interface, the third medium interface and the fourth medium interface are arranged on the second valve body.

In order to solve the technical problem, the utility model adopts another technical scheme that the gas distribution device comprises the gas valve.

In order to solve the technical problem, the utility model provides a pneumatic comfort system which comprises a first air source device, a second air source device, a first air bag set, a second air bag set and the air distribution device, wherein the first air bag set comprises at least one first air bag, the second air bag set comprises at least one second air bag, the first air source device is connected with the third medium interface, the second air source device is connected with the first medium interface, the first air bag set is connected with the second medium interface, and the second air bag set is connected with the fourth medium interface.

Optionally, the first air source device comprises an air pump, and the second air source device comprises an air storage container.

The embodiment of the utility model has the beneficial effects that:

According to the air valve, the valve body is provided with the plurality of medium interfaces which are respectively communicated with the conduction cavity of the valve body, the conduction cavity is internally provided with the movable valve core, and the movable valve core can realize switching and cutting of the communication between two medium interfaces and the conduction cavity, so that the non-cut medium interfaces are conducted with other opened medium interfaces through the conduction cavity, and the other cut medium interfaces cannot be conducted with other opened medium interfaces through the conduction cavity, thereby realizing air path switching.

The gas distribution device is provided with the gas valve as the total gas inlet valve, so that gas path switching can be realized. In addition, the pneumatic comfort system adopts the gas distribution device, integrates the gas circuit switching possibility, meets the gas inlet switching control requirements of a plurality of functional valve groups comprising pneumatic massage, pneumatic waist support, pneumatic side wing support and the like arranged on a single gas distribution device, and particularly meets the gas circuit switching requirements when different functions of the pneumatic comfort system comprising the pneumatic pump and the gas storage tank are realized by the pneumatic massage of the gas source, the pneumatic waist support and the pneumatic side wing support, and can realize the rapid side wing support response of the pneumatic pump and the gas storage tank for supplying gas to the pneumatic side wing support.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an explosion structure of a gas valve according to an embodiment of the present utility model along a first view angle;

FIG. 2 is a schematic diagram of an assembled structure of an air valve according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of a gas valve according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along the direction B-B in FIG. 3;

FIG. 6 is a schematic view of an exploded view of a gas valve according to an embodiment of the present utility model;

Fig. 7 is a schematic diagram of a split structure of a first valve body and a second valve body of an air valve according to an embodiment of the present utility model.

Reference numerals:

1000. An air valve;

1. A valve body; 1a, a spool, 1b, a coil, 1c, a first accommodating groove, 1d, a second accommodating groove, 1e, a first valve body, 1f, a second valve body, 1e1, a plug connector, 1f1 and a plug groove;

11. The conducting chamber, 111, the first medium opening, 112, the second medium opening, 12, the first medium interface, 13, the second medium interface, 14, the third medium interface, 15, the fourth medium interface, 16, the first air passage, 17, the second air passage, 171, the second air passage I section, 172, the second air passage II section, 173, the second air passage III section, 18, the third air passage, 19, the fourth air passage;

2. a movable valve core;

3. an elastic reset piece;

4. A first air pressure sensor;

5. A second air pressure sensor;

6. and (3) sealing rings.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "first", "second", "third", etc. used in this specification are merely for convenience of description of the embodiments of the present specification and do not show the importance of the corresponding parts.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a gas valve 1000 according to an embodiment of the present utility model includes a valve body 1 and a movable valve element 2.

The valve body 1 is provided with a conducting chamber 11, a first medium interface 12, a second medium interface 13, a third medium interface 14 and a fourth medium interface 15, wherein the first medium interface 12, the second medium interface 13, the third medium interface 14 and the fourth medium interface 15 are respectively communicated with the conducting chamber 11 and respectively can realize medium exchange and communication comprising gas with the conducting chamber 11, and the first medium interface 12, the second medium interface 13, the third medium interface 14 and the fourth medium interface 15 can be respectively connected with external equipment, such as an air bag, an air supply device, an air storage device and the like, and the third medium interface 14 is communicated with the fourth medium interface 15.

The movable valve core 2 is disposed in the conducting chamber 11, and the movable valve core 2 can change the conducting state of the conducting chamber 11 and the first medium interface 12, and change the conducting state of the conducting chamber 11 and the second medium interface 13.

It should be noted that, the air valve 1000 has two ventilation states under the action of the movable valve core 2, which are a first ventilation state that makes the movable valve core 2 intercept the conduction between the conduction chamber 11 and the first medium interface 12, and a second ventilation state that makes the movable valve core 2 intercept the conduction between the conduction chamber 11 and the second medium interface 13. When the air valve 1000 is in the first ventilation state, the second medium interface 13 is conducted with the third medium interface 14 and the fourth medium interface 15 through the conducting chamber 11, and the first medium interface 12 is disconnected from the conducting chamber 11, namely, the first medium interface 12 is disconnected from the second medium interface 13, the third medium interface 14 and the fourth medium interface 15, and when the air valve 1000 is in the second ventilation state, the first medium interface 12 is conducted with the third medium interface 14 and the fourth medium interface 15, and the second medium interface 13 is disconnected from the conducting chamber 11, namely, the second medium interface 13 is disconnected from the first medium interface 12, the third medium interface 14 and the fourth medium interface 15.

The communication between the third medium interface 14 and the fourth medium interface 15 is not affected by the movable valve core 2, and the third medium interface 14 and the fourth medium interface 15 are in a normal conduction state.

In some preferred embodiments, the third media interface 14 communicates with the fourth media interface 15 via a third air passage 18, and the pass-through chamber 11 communicates with the third air passage 18 via a fourth air passage 19 to communicate with the third media interface 14 and the fourth media interface 15.

For the above-mentioned conducting chamber 11, referring back to fig. 4, a first medium opening 111 and a second medium opening 112 are formed in the wall of the conducting chamber 11, the first medium opening 111 is communicated with the first medium port 12 through a first air passage 16, and the second medium opening 112 is communicated with the second medium port 13 through a second air passage 17. The movable valve element 2 is provided in the communication chamber 11 so as to be switchable between a first position and a second position, the movable valve element 2 closing the first medium opening 111 and opening the second medium opening 112 when the movable valve element 2 is in the first position, and the movable valve element 2 closing the second medium opening 112 and opening the first medium opening 111 when the movable valve element 2 is in the second position.

The movable valve element 2 cuts off the conduction chamber 11 from the first medium port 12 by closing the first medium opening 111, and cuts off the conduction chamber 11 from the second medium port 13 by closing the second medium opening 112. Wherein the valve 1000 is in the first ventilation state by having the movable valve core 2 close the first medium opening 111 and the second medium opening 112, and the valve 1000 is in the second ventilation state by having the movable valve core 2 close the second medium opening 112 and the first medium opening 111.

It should be noted that, a gap is formed between the movable valve core 2 and the inner wall of the conducting chamber 11 to be used as a medium conducting channel, or the movable valve core 2 may be provided with a medium conducting channel, for example, provided on the outer surface of the movable valve core 2. When in the first ventilation state, the second medium interface 13, the second air passage 17 and the second medium opening 112 are communicated with the third medium interface 14 and the fourth medium interface 15 directly through the communication cavity 11 or through the clearance between the movable valve core 2 and the communication cavity 11, and when in the second ventilation state, the first medium interface 12, the first air passage 16 and the first medium opening 111 are communicated with the third medium interface 14 and the fourth medium interface 15 through the clearance between the movable valve core 2 and the inner wall of the communication cavity 11.

In some embodiments, as shown in fig. 6, a spool 1a and a coil 1b are disposed on the valve body 1, the coil 1b is wound on the spool 1a, and the movable valve core 2 is within a winding range corresponding to the coil 1b, in alternative embodiments, the conducting chamber 11 is opened in the spool 1a, so that the coil 1b corresponds to the movable valve core 2, and the coil 1b has a pin for externally connecting a power supply. When the coil 1b is powered on, the coil 1b can generate an electromagnetic field, and the movable valve core 2 is displaced under the excitation action of the coil 1b to close the first medium opening 111 or the second medium opening 112.

It will be appreciated that in some embodiments, the change in direction of movement of the movable spool 2 may be achieved by controlling the change in direction of the passing current of the coil 1b to control the switching of the movable spool 2 between the first and second positions within the conducting chamber 11.

In other embodiments, referring back to fig. 1, the elastic restoring member 3 may be provided to cause the movable spool 2 to close the first medium opening 111 or the second medium opening 112 in a normal state in which the coil 1b is not energized. For the above-mentioned elastic restoring member 3, a spring is optional but not limited thereto, and the elastic restoring member 3 is operatively connected between the movable valve element 2 and the wall of the conducting chamber 11, so as to urge the movable valve element 2 to normally close the first medium opening 111 or the second medium opening 112. In the embodiment shown, two ends of the elastic reset element 3 are respectively abutted against the movable valve core 2 and the wall of the conducting cavity 11, where the first medium opening 111 is formed, so as to seal the second medium opening 112 by elastic acting force under the normal state that the coil 1b is not electrified, when the coil 1b is electrified, an electromagnetic field is generated by the coil 1b, the coil 1b is excited to enable the movable valve core 2 to move close to seal the first medium opening 111 against the elastic force of the elastic reset element 3 and simultaneously open the second medium opening 112, and when the coil 1b is not electrified, the movable valve core 2 is reset under the action of the elastic reset element 3 so as to normally seal the second medium opening 112.

In other preferred embodiments, seals are provided at the ends of the movable spool 2 facing the first medium opening 111 and the second medium opening 112, respectively, to improve the tightness of the movable spool 2 against the first medium opening 111 and the second medium opening 112 when in the first position and the second position. Wherein the seal includes, but is not limited to, a rubber ring, a silicone pad, and the like.

In some embodiments, as shown in fig. 6, the air valve 1000 is provided with a first air pressure sensor 4 and a second air pressure sensor 5, the first air pressure sensor 4 is used for detecting air pressure in the first air passage 16, the second air pressure sensor 5 is used for detecting air pressure in the second air passage 17, and the working state of the air valve 1000 can be controlled according to the air pressure data detected by the first air pressure sensor 4 and the second air pressure sensor 5 and transmitted to an external control device. Specifically, a first receiving groove 1c communicating with the first air passage 6 is provided in the valve body 1, the first air pressure sensor 4 is received in the first receiving groove 1c, and a second receiving groove 1d communicating with the second air passage 17 is provided in the valve body 1, and the second air pressure sensor 5 is received in the second receiving groove 1 d.

Alternatively, the valve body 1 of the air valve 1000 according to the embodiment of the present utility model may be integrally formed, or may be formed by assembling multiple valve body parts, such as two valve body parts, three valve body parts, or four valve body parts.

In some embodiments, referring to fig. 7 and referring back to fig. 3, the valve body 1 includes a first valve body 1e and a second valve body 1f that are connected in a sealing manner, and the first valve body 1e and the second valve body 1f are assembled into a unitary valve body 1 in a sealing manner. The first air passage 16, the fourth air passage 19, the first medium port 12 and the conducting chamber 11 are disposed on the first valve body 1e, and the second air passage 17, the third air passage 18, the second medium port 13, the third medium port 14 and the fourth medium port 15 are disposed on the second valve body 1 f.

It will be appreciated that the sealing connection between the first valve body 1e and the second valve body 1f includes, but is not limited to, sealing rings, rubber sleeves, interference fit, etc. In this embodiment, the sealing ring 6 is preferably used to realize the sealing connection between the first valve body 1e and the second valve body 1f, where the second valve body 1f is provided with a plugging slot 1f1, the first valve body 1e has a plug 1e1 adapted to the plugging slot 1f1 and is inserted into the plugging slot 1f1, the sealing ring 6 is sleeved between the plugging slot 1f1 and the plug 1e1, and seals the gap between the plugging slot 1f1 and the plug 1e1, so as to realize the sealing connection between the first valve body 1e and the second valve body 1f, thereby realizing the sealing assembly of the valve body 1.

In a further preferred embodiment, the plug connector 1e1 comprises an inner connector and an outer connector, wherein the inner connector is provided with a partial section of the second air passage 17 which is directly communicated with the second medium opening 112, and is communicated with another partial section of the second air passage 17 which is communicated with the second medium interface 13 on the second valve body 1f after the first valve body 1e is in plug-in fit with the second valve body 1 f. A fourth air passage 19 with one end connected to the conducting chamber 11 is arranged between the inner joint and the outer joint, and the other end of the fourth air passage 19 is connected to a third air passage 18 on the second valve body 1f after the first valve body 1e is in plug-in fit with the second valve body 1 f. Correspondingly, the plugging groove 1f1 is provided with an inner connecting groove and an outer connecting groove which are correspondingly matched with the inner connector and the outer connector, and the sealing ring 6 is provided with at least two sealing rings with the sizes corresponding to the outer diameters of the inner connector and the outer connector respectively, so that after the first valve body 1e is plugged and matched with the second valve body 1f, gaps between the inner connector and the inner connecting groove are sealed, and gaps between the outer connector and the outer connecting groove are sealed.

In addition, in the air valve 1000 according to the embodiment of the present utility model, the first air passage 16, the second air passage 17, the third air passage 18 and the fourth air passage 19 on the valve body 1 may be arranged in multiple segments according to the requirement and the molding requirement of the valve body 1, and further, medium interfaces may be respectively added on the valve body 1 corresponding to the segment arrangement of each air passage, so as to further increase the air passage selection diversity of the air valve 1000.

In some embodiments, referring back to fig. 5, the second air passage 17 on the second valve body 1f includes a second air passage I segment 171, a second air passage II segment 172, and a second air passage III segment 173, and the second air passage I segment 171, the second air passage II segment 172, and the second air passage III segment 173 are sequentially communicated.

The valve body 1 may further be additionally provided with medium interfaces respectively corresponding to the second air channel I section 171, the second air channel II section 172 and the second air channel III section 173, and the additionally provided medium interfaces may be externally connected with an air bag, an air supply device or an air storage device as required, so as to further enrich the air channel selectivity of the air valve 1000.

It should be noted that the air valve 1000 may be applied to an air distribution device of a pneumatic comfort system, including but not limited to one or more of a pneumatic massage system, a pneumatic wing support system, and a pneumatic lumbar support system, and the corresponding pneumatic comfort system includes but is not limited to an equipment field of an automobile seat, a massage seat, an air bag bed, and the like.

The present utility model provides an embodiment of a gas distribution apparatus, which includes the gas valve 1000 described above, and the structure and function of the gas valve 1000 can be referred to the above embodiment, and will not be described herein. Preferably, the air valve 1000 may be provided on the air distribution device as a total air inlet valve, where the air distribution device may further be provided with a plurality of air valves for controlling inflation and deflation of the massage air bag, controlling inflation and deflation of the side wing support air bag, and controlling inflation and deflation of the waist support air bag, and one or more of the plurality of medium interfaces including the first medium interface 12, the second medium interface 13, the third medium interface 14, and the fourth medium interface 15 on the air valve 1000 may be used as an air source interface to connect with the air supply device and the air storage device, and the remaining medium interfaces may be selectively connected with a plurality of air valves for controlling inflation and deflation of the massage air bag, controlling inflation and deflation of the side wing support air bag, and controlling inflation and deflation of the waist support air bag, as required.

The utility model provides an embodiment of a pneumatic comfort system, which comprises a first air source device, a second air source device, a first air bag set, a second air bag set and the air distribution device, wherein the first air bag set comprises at least one first air bag, the second air bag set comprises at least one second air bag, the first air source device is connected with a third medium interface 14, the second air source device is connected with a first medium interface 12, the first air bag set is connected with a second medium interface 13, and the second air bag set is connected with a fourth medium interface 15.

It should be noted that the first air source device includes, but is not limited to, an air pump, an air compressor, an air container or an integrated pump valve device, and in this embodiment, the first air source device is preferably an air pump. The second air source device includes, but is not limited to, an air pump, an air compressor, an air container or a pump valve integrated device, and in this embodiment, the second air source device is preferably an air container.

The first air bag comprises, but is not limited to, a massage air bag, a waist support air bag, a side wing support air bag and the like, and can be specifically limited according to the specific position of the actual air bag and the function of the air bag at the corresponding position, and in the embodiment, the first air bag is preferably a massage air bag and a waist support air bag. The second air bag includes, but is not limited to, a massage air bag, a waist support air bag, a side wing support air bag, etc., and can be specifically defined according to the specific position of the actual air bag and the function of the air bag at the corresponding position, and in this embodiment, the second air bag set is preferably the side wing support air bag.

In addition, a control valve, such as a stop valve, for controlling the on-off of the air source can be further arranged between the second air source device and the first medium interface 12 and between the first air source device and the third medium interface 14. Control valves for controlling the inflation and deflation of the air bags, such as a two-position three-way electromagnetic valve corresponding to the first air bag being a massage air bag, a three-position three-way electromagnetic valve corresponding to the first air bag being a waist support supporting air bag, and a three-position three-way electromagnetic valve corresponding to the second air bag being a flank supporting air bag, can be further arranged between the first air bag and the second medium interface 13 and between the second air bag and the fourth medium interface 15.

In order to facilitate understanding of the working logic of the air valve 1000 in the pneumatic comfort system, the following description will be given by way of example, in which the second air source device connected to the first medium port 12 is designated as an air tank, the first air source device connected to the third medium port 14 is designated as an air pump, the first air bag connected to the second medium port 13 is designated as a massage air bag and a lumbar support air bag, and the second air bag connected to the fourth medium port 15 is designated as a wing support air bag, and when working, the following first ventilation state and the second ventilation state of air path switching may occur:

The first ventilation state is that the movable valve core 2 seals the first medium opening 111, the air pump is connected with the third medium interface 14, the air pump supplies air, the air enters from the third medium interface 14 and flows into the flank supporting air bags connected with the fourth medium interface 15 through the third air passage 18 and the fourth medium interface 15 in sequence, and the air also flows into the massage air bags and the waist supporting air bags connected with the second medium interface 13 through the third air passage 18, the fourth air passage 19, the second medium opening 112, the second air passage 17 and the second medium interface 13 in sequence, so that pneumatic massage, pneumatic waist supporting and pneumatic flank supporting are realized.

The second ventilation state is that the movable valve core 2 blocks the second medium opening 112, the air pump is connected with the third medium interface 14, the air pump supplies air, the air enters from the third medium interface 14 and flows into the wing supporting air bags connected with the fourth medium interface 15 through the third air passage 18 and the fourth medium interface 15 in sequence to realize pneumatic wing supporting, and when the air storage tank supplies air, the air also flows into the air storage tank connected with the first medium interface 12 through the third air passage 18, the fourth air passage 19, the first medium opening 111 and the first medium interface 12 in sequence, or the air storage tank can supply air for the wing supporting air bags quickly, and the air of the air storage tank flows into the wing supporting air bags connected with the fourth medium interface 15 through the first medium interface 12, the first medium opening 111, gaps between the movable valve core 2 and the conducting chamber 11, the fourth air passage 19, the third air passage 18 and the fourth medium interface 15 in sequence, so that the response efficiency of wing supporting is improved.

It can be appreciated that when the wing support needs to be fast responded under the second ventilation state, the air storage tank can play the same air supply function with the air pump, for example, a valve is arranged at the joint of the first medium interface 12 and the air storage tank and used for controlling the on-off of the first medium interface 12 and the air storage tank, when the wing support air bag needs to be fast inflated, the valve is opened, the air pump is started, and the air pump and the air storage tank are used as air supply sources to supply air to the wing support air bag simultaneously, so that the inflation and deployment speed of the wing support air bag is greatly improved.

It should be noted that while the present utility model has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the utility model may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above technical features are further combined with each other to form various embodiments which are not listed above and are all considered as the scope of the present utility model described in the specification, further, the improvement or transformation can be carried out by the person skilled in the art according to the above description, and all the improvements and transformation shall fall within the protection scope of the appended claims.

Claims (10)

1. An air valve is characterized by comprising a valve body;

The valve body is provided with a conduction cavity, and a first medium interface, a second medium interface, a third medium interface and a fourth medium interface which are communicated with the conduction cavity;

the air valve is provided with a first ventilation state for enabling the movable valve core to cut off the conduction of the conduction cavity and the first medium interface and a second ventilation state for enabling the movable valve core to cut off the conduction of the conduction cavity and the second medium interface, when the air valve is in the first ventilation state, the second medium interface is conducted with the third medium interface and the fourth medium interface, and when the air valve is in the second ventilation state, the first medium interface is conducted with the third medium interface and the fourth medium interface.

2. The air valve according to claim 1, wherein a first medium opening and a second medium opening are formed in a wall of the conducting chamber, the first medium opening is communicated with the first medium interface through a first air passage, the second medium opening is communicated with the second medium interface through a second air passage, the second medium opening is opened by enabling the movable valve core to close the first medium opening, so that the air valve is in the first ventilation state, and the first medium opening is opened by enabling the movable valve core to close the second medium opening, so that the air valve is in the second ventilation state.

3. The air valve according to claim 2, wherein a coil is arranged on the valve body, and the movable valve core is displaced under the excitation action of the coil to close the first medium opening or the second medium opening.

4. The valve of claim 3, wherein an elastic return member is provided and operatively connected between the movable spool and the wall of the pass-through chamber to urge the movable spool to normally close either the first media opening or the second media opening.

5. The gas valve according to claim 2, wherein a first gas pressure sensor is provided for detecting the gas pressure in the first gas passage and/or a second gas pressure sensor is provided for detecting the gas pressure in the second gas passage.

6. The gas valve of claim 1, wherein the third media port communicates with the fourth media port via a third gas passage, and wherein the pass-through chamber communicates with the third gas passage via a fourth gas passage to communicate with the third media port and the fourth media port.

7. The valve of any of claims 1-6, wherein the valve body comprises a first valve body and a second valve body in sealed connection, wherein the first media port and the pass-through chamber are disposed on the first valve body, and the second media port, the third media port, and the fourth media port are disposed on the second valve body.

8. A gas distribution device characterized in that a gas valve according to any one of claims 1-7 is provided.

9. A pneumatic comfort system comprising a first air source device, a second air source device, a first air bag set comprising at least one first air bag, a second air bag set comprising at least one second air bag, and the air distribution device of claim 8;

The first air source device is connected to the third medium interface, the second air source device is connected to the first medium interface, the first air bag set is connected to the second medium interface, and the second air bag set is connected to the fourth medium interface.

10. The pneumatic comfort system of claim 9 wherein the first air source device comprises an air pump and the second air source device comprises an air reservoir.