阅读说明：本技术 一种汽车座椅带信号输出功能的控制开关 (Control switch with signal output function for automobile seat ) 是由 张海涛 马玉坤 尹海昆 于 2020-11-30 设计创作，主要内容包括：本申请提供一种座椅汽车带信号输出功能的控制开关,包括安装支架,压盖,进气阀组件、泄气阀组件、用气阀以及信号组件；压盖安装在安装支架顶部,压盖具有进气按压端以及泄气按压端；按压进气按压端时,进气阀组件与用气阀间的第一气路导通；按压泄气按压端时,泄气阀组件与用气阀间的第二气路导通；信号组件包括：第一导电电极、第二导电电极以及盖板；第一导电电极与进气阀组件连接,盖板安装在安装槽上；盖板上设有通路,外部电路通过通路与第一导电电极、第二导电电极建立电连接关系；当按压进气按压端时,第一导电电极与第二导电电极接触,电路导通。通过上述结构,使得可手动控制阀体并联动电路通断,结构简单,避免时刻需要气源保持。(The application provides a control switch with a signal output function for a seat automobile, which comprises a mounting bracket, a gland, an air inlet valve component, an air release valve component, an air valve and a signal component, wherein the mounting bracket is fixedly connected with the gland; the gland is arranged at the top of the mounting bracket and is provided with an air inlet pressing end and an air outlet pressing end; when the air inlet pressing end is pressed, the air inlet valve component is communicated with a first air path between the air valves; when the air release pressing end is pressed, the air release valve component is communicated with a second air path between the air valves; the signal assembly includes: a first conductive electrode, a second conductive electrode and a cover plate; the first conductive electrode is connected with the air inlet valve assembly, and the cover plate is arranged on the mounting groove; the cover plate is provided with a passage, and an external circuit is electrically connected with the first conductive electrode and the second conductive electrode through the passage; when the air inlet pressing end is pressed, the first conductive electrode is contacted with the second conductive electrode, and the circuit is conducted. Through the structure, the valve body can be manually controlled and the circuit is linked to be switched on and off, the structure is simple, and the air source is prevented from being kept constantly.)

1. The utility model provides a control switch of signal output function is taken to seat car which characterized in that: the pressure-sensitive valve comprises a mounting bracket (1), a gland (2), an air inlet valve component, an air release valve component, an air valve (5) and a signal component, wherein the air inlet valve component, the air release valve component, the air valve (5) and the signal component are mounted in the mounting bracket (1);

the gland (2) is arranged at the top of the mounting bracket (1), and the gland (2) is provided with an air inlet pressing end (3) and an air outlet pressing end (4); when the air inlet pressing end (3) is pressed, a first air path (6) between the air inlet valve component (3) and the air valve (5) is communicated; when the air release pressing end (4) is pressed, the air release valve assembly is communicated with a second air path (7) between the air valve (5);

the signal assembly includes: a first conductive electrode (8), a second conductive electrode (9) and a cover plate (10); a mounting groove (11) is formed in the mounting bracket (1), the first conductive electrode (8) and the second conductive electrode (9) are mounted in the mounting groove (11), and the first conductive electrode (8) and the second conductive electrode (9) are arranged in a separated mode; the first conductive electrode (8) is connected with the air inlet valve assembly, and the cover plate (10) is installed on the installation groove (11); a passage (12) is arranged on the cover plate (10), and an external circuit is electrically connected with the first conductive electrode (8) and the second conductive electrode (9) through the passage (12); when the air inlet pressing end (3) is pressed, the first air path (6) is conducted, and meanwhile the first conductive electrode (8) is in contact with the second conductive electrode (9), so that the first conductive electrode (8) and the second conductive electrode (9) are conducted in a circuit mode.

2. The control switch of claim 1, wherein: the first conductive electrode (8) is provided with a mounting part (38) used for being connected with the air inlet valve assembly, a first contact part (39) used for being contacted with the second conductive electrode (9) and a first external connection end (40) used for being connected with an external circuit;

the second conductive electrode (9) has a second contact portion (41) for contacting the first contact portion (39) and a second external terminal (42) for connecting to an external circuit.

3. The control switch of claim 2, wherein: the mounting groove (11) is provided with an insulating block (43) for isolating the first external connection end (40) from the second external connection end (42); the number of the passages (12) is two, and the two passages (12) are respectively arranged corresponding to the positions of the first external connection end (40) and the second external connection end (42).

4. The control switch of claim 1, wherein: an air inlet valve mounting hole (13) for mounting the air inlet valve assembly is formed in the mounting support (1), the air inlet valve mounting hole (13) is communicated with the air valve (5), and a first limiting plate (14) and a second limiting plate (15) are arranged in the air inlet valve mounting hole (13); the air inlet valve assembly comprises an air inlet thimble (16) and an air inlet nozzle (17); an air inlet valve core (18) is installed in the air inlet nozzle (17), one end of the air inlet thimble (16) is connected with the bottom of the air inlet pressing end (3), and the other end of the air inlet thimble (16) is in contact with or connected with the end part of the air inlet valve core (18); the first conductive electrode (8) is fixedly connected with the air inlet thimble (16); be equipped with first joint portion (19) on inlet thimble (16) lateral wall, first joint portion (19) are located first limiting plate (14) below, suction nozzle (17) top is located second limiting plate (15) below.

5. The control switch of claim 4, wherein: a groove (44) is formed in the air inlet thimble (16), and the installation portion (38) of the first conductive electrode (8) is fixedly connected with the groove (44).

6. The control switch with signal output function according to claim 4, wherein: a first return spring (20) is arranged in the air inlet nozzle (17), and the first return spring (20) is positioned at the bottom of the air inlet valve core (18); a first sealing ring (21) is arranged between the top of the air inlet nozzle (17) and the second limiting plate (15).

7. The control switch of claim 4, wherein: a second sealing ring (22) is arranged on the circumference of the outer side wall of the air inlet thimble (16); the second sealing ring (22) is positioned between the first limiting plate (14) and the first clamping part (19); and a third sealing ring (23) is arranged on the circumference of the outer side wall of the air inlet nozzle (17).

8. The control switch of claim 1, wherein: the mounting bracket (1) is provided with a gas release valve mounting hole (24) for mounting the gas release valve assembly, the gas release valve mounting hole (24) is communicated with the gas valve (5), and a third limiting plate (24) and a fourth limiting plate (25) are arranged in the gas release valve mounting hole (24); the air release valve component comprises an air release thimble (27) and an air release nozzle (28); an air release valve core (29) is installed in the air release nozzle (28), one end of the air release thimble (27) is connected with the bottom of the air release pressing end (4), and the other end of the air release thimble (27) is in contact with or connected with the end part of the air release valve core (29); be equipped with third joint portion (30) on disappointing thimble (27) lateral wall, third joint portion (30) are located third limiting plate (25) below, mouth (27) top of disappointing is located fourth limiting plate (26) below.

9. The control switch of claim 8, wherein: and a second return spring (31) is installed in the air release nozzle (28), and the second return spring (31) is positioned at the bottom of the air release valve core (29).

10. The control switch of claim 8, wherein: a fourth sealing ring (32) is arranged between the top of the air release nozzle (28) and the fourth limiting plate (26), and a fifth sealing ring (33) is arranged on the circumference of the outer side wall of the air release thimble (27);

the fifth sealing ring (33) is positioned between the third limiting plate (25) and the third clamping part (30); and a sixth sealing ring (34) is arranged on the circumference of the outer side wall of the air leakage nozzle (28).

Technical Field

The present disclosure generally relates to the technical field of a gas circuit and circuit hybrid control switch for an automobile seat, and particularly relates to a switch for an automobile capsule control technology in the field of seats, and more particularly to a control switch with an output function for an automobile seat belt.

Background

The control switch can be used for realizing the on-off function of the air circuit, the air source support is usually required to be kept at the air inlet port of the control switch at any time, and when air is required to be used, the air circuit can be switched on through the control switch to supply the air source.

In the process of combining the air circuit and the circuit, the on-off of the air circuit is usually controlled by using a valve body, and the on-off state of the air circuit in the valve body is controlled by switching on and off the power, wherein the valve body is generally an electromagnetic valve or a valve body controlled by memory alloy.

In the prior art, the control switch only has the function of gas circuit control and is only suitable for controlling the on-off of the gas circuit in the application scene of continuous supply of the gas source.

The application provides a simple control switch of manual control valve body and linkage circuit break-make, realizes when the break-make of manually operation switch gas circuit, linkage control the break-make of circuit, and then realizes the break-make of control air supply. Namely, the inflation switch and the air source circuit switch form a linkage relation. When the air needs to be inflated, the air source is electrified to supply air, the air path of the inflation switch is conducted, and the external structure such as an external air bag body is inflated; when the air bag body is pressed or deflated, the inflation air path is cut off, the air source circuit is cut off, and the air source stops supplying air.

Disclosure of Invention

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a control switch with signal output function for an automobile seat, which has a simple structure, can manually control a valve body and is linked with a circuit to be switched on and off, and avoids the need of an air source at any time.

The utility model provides a control switch with signal output function for automobile seat, which comprises a mounting bracket, a gland, an air inlet valve component, an air release valve component, an air valve and a signal component, wherein the air inlet valve component, the air release valve component, the air valve and the signal component are arranged in the mounting bracket;

the gland is arranged at the top of the mounting bracket and is provided with an air inlet pressing end and an air outlet pressing end; when the air inlet pressing end is pressed, the air inlet valve assembly is communicated with a first air path between the air valves; when the air release pressing end is pressed, the air release valve assembly is communicated with a second air path between the air valves;

the signal assembly includes: a first conductive electrode, a second conductive electrode and a cover plate; the mounting bracket is provided with a mounting groove, the first conductive electrode and the second conductive electrode are mounted in the mounting groove, and the first conductive electrode and the second conductive electrode are separately arranged; the first conductive electrode is connected with the air inlet valve assembly, and the cover plate is installed on the installation groove; a passage is arranged on the cover plate, and an external circuit is electrically connected with the first conductive electrode and the second conductive electrode through the passage; when the air inlet pressing end is pressed, the first air path is conducted, and meanwhile the first conductive electrode is in contact with the second conductive electrode, so that the first conductive electrode and the second conductive electrode are conducted in a circuit.

According to the technical scheme provided by the embodiment of the application, the first conductive electrode is provided with a mounting part used for being connected with the air inlet valve assembly, a first contact part used for being contacted with the second conductive electrode and a first external connection end used for being connected with an external circuit;

the second conductive electrode has a second contact portion for contacting the first contact portion and a second external terminal for connection to an external circuit.

According to the technical scheme provided by the embodiment of the application, the mounting groove is provided with an insulating block for isolating the first external connection end from the second external connection end; the number of the passages is two, and the two passages are respectively arranged corresponding to the first external connection end and the second external connection end.

According to the technical scheme provided by the embodiment of the application, an air inlet valve mounting hole for mounting the air inlet valve assembly is formed in the mounting bracket, the air inlet valve mounting hole is communicated with the air valve, and a first limiting plate and a second limiting plate are arranged in the air inlet valve mounting hole; the air inlet valve assembly comprises an air inlet thimble and an air inlet nozzle; an air inlet valve core is installed in the air inlet nozzle, one end of the air inlet thimble is connected with the bottom of the air inlet pressing end, and the other end of the air inlet thimble is contacted with or connected with the end part of the air inlet valve core; the first conductive electrode is fixedly connected with the air inlet thimble; be equipped with first joint portion on the inlet thimble lateral wall, first joint portion is located first limiting plate below, the suction nozzle top is located second limiting plate below.

According to the technical scheme that this application embodiment provided, be provided with the recess on the thimble admits air, the installation department of first conductive electrode with recess fixed connection.

According to the technical scheme provided by the embodiment of the application, a first return spring is installed in the air inlet nozzle, and the first return spring is located at the bottom of the air inlet valve core; and a first sealing ring is arranged between the top of the air inlet nozzle and the second limiting plate.

According to the technical scheme provided by the embodiment of the application, a second sealing ring is arranged on the circumference of the outer side wall of the air inlet thimble; the second sealing ring is positioned between the first limiting plate and the first clamping part; and a third sealing ring is arranged on the circumference of the outer side wall of the air inlet nozzle.

According to the technical scheme provided by the embodiment of the application, the mounting bracket is provided with a gas release valve mounting hole for mounting the gas release valve assembly, the gas release valve mounting hole is communicated with the gas valve, and a third limiting plate and a fourth limiting plate are arranged in the gas release valve mounting hole; the air release valve assembly comprises an air release thimble and an air release nozzle; an air release valve core is installed in the air release nozzle, one end of the air release thimble is connected with the bottom of the air release pressing end, and the other end of the air release thimble is in contact with or connected with the end part of the air release valve core; the outer side wall of the air release thimble is provided with a third clamping portion, the third clamping portion is located below the third limiting plate, and the top of the air release nozzle is located below the fourth limiting plate.

According to the technical scheme that this application embodiment provided, install second return spring in disappointing the mouth, second return spring is located it leaks gas case bottom.

According to the technical scheme provided by the embodiment of the application, a fourth sealing ring is arranged between the top of the air release nozzle and the fourth limiting plate, and a fifth sealing ring is arranged on the circumference of the outer side wall of the air release thimble;

the fifth sealing ring is positioned between the third limiting plate and the third clamping part; and a sixth sealing ring is arranged on the circumference of the outer side wall of the air leakage nozzle.

The application has the advantages that: based on the technical scheme recorded in the publication, in the use process, when the air inlet pressing end is pressed, the first air path between the air inlet valve component and the air valve is conducted, and meanwhile, the first conductive electrode is in contact with the second conductive electrode, so that the first conductive electrode and the second conductive electrode are in circuit conduction, and further, the opening of an external air source can be realized, and the air source enters the air valve through the air inlet valve component and the first air path for use;

when pressing when the valve subassembly loses heart, lose heart the valve subassembly with the second gas circuit between the pneumatic valve switches on, first conductive electrode with the separation of the conductive electrode of second makes first conductive electrode with the circuit disconnection is realized to the conductive electrode of second, and then can realize that external air supply closes, because the effect of atmospheric pressure this moment, it is lost heart to carry out the pressure release with gas valve accessible second gas circuit and disappointing valve subassembly.

The control switch with the signal output function for the automobile seat has a simple structure, can manually control the valve body and be linked with the circuit to be switched on and off, and can be used for controlling the switching on and off of the circuit in a linkage manner while the switching on and off of the gas circuit of the switch is manually operated, so that the switching on and off of a gas source is controlled; avoiding the need for the intake valve assembly to maintain air supply support at all times.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a control switch with a signal output function provided in the present application;

FIG. 2 is a schematic cross-sectional view of the inlet valve assembly and the discharge valve assembly of FIG. 1;

FIG. 3 is a perspective view of the control switch of FIG. 1;

FIG. 4 is a partial enlarged view of portion A of FIG. 4;

fig. 5 is a schematic structural diagram of the first air passage 6 in the control switch shown in fig. 1;

FIG. 6 is a partial enlarged view of portion B of FIG. 5;

fig. 7 is a schematic structural diagram of a second air path 7 in the control switch shown in fig. 1;

fig. 8 is a partially enlarged view of a portion C shown in fig. 7;

FIG. 9 is a schematic view of the connection structure between the air inlet pin 16 and the signal assembly shown in FIG. 1;

FIG. 10 is an exploded view of the assembly of the control switch of FIG. 1;

FIG. 11 is a schematic front view of the control switch shown in FIG. 1;

FIG. 12 is a side cross-sectional view of the nozzle 17 of FIG. 9;

FIG. 13 is a side cross-sectional view of the delivery spout 28 of FIG. 9;

fig. 14 is an electrical schematic of the control switch of fig. 1.

Reference numbers in the figures:

1. mounting a bracket; 2. a gland; 3. an air intake pressing end; 4. an air-release pressing end; 5. an air valve is used; 6. a first gas path; 7. a second gas path; 8. a first conductive electrode; 9. a second conductive electrode; 10. a cover plate; 11. mounting grooves; 12. a passage; 13. an air inlet valve mounting hole; 14. a first limit plate; 15. a second limiting plate; 16. an air inlet thimble; 18. an air inlet valve core; 19. a first clamping part; 20. a first return spring; 21. a first seal ring; 22. a second seal ring; 23. a third seal ring; 24. a mounting hole of the air escape valve; 25. a third limiting plate; 26. a fourth limiting plate; 27. an air release thimble; 28. a gas release nozzle; 29. a relief valve core; 30. a third clamping connection part; 31. a second return spring; 32. a fourth seal ring; 33. a fifth seal ring; 34; a sixth seal ring; 35. a through hole; 36. plugging the ball; 37. an assembly hole; 38. an installation part; 39. a first contact portion; 40. a first outer terminal; 41. a second contact portion; 42. a second outer terminal; 43. an insulating block; 44. and (4) a groove.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Please refer to fig. 1, which is a schematic cross-sectional structural diagram of a control switch with a signal output function provided in the present application, including a mounting bracket 1, a gland 2, an intake valve assembly, an exhaust valve assembly, an air valve 5 and a signal assembly installed in the mounting bracket 1;

the gland 2 is arranged at the top of the mounting bracket 1, and the gland 2 is provided with an air inlet pressing end 3 and an air outlet pressing end 4; when the air inlet pressing end 3 is pressed, the first air path 6 between the air inlet valve assembly 3 and the air valve 5 is conducted; when the air release pressing end 4 is pressed, the air release valve assembly is communicated with a second air passage 7 between the air valve 5;

the signal assembly includes: a first conductive electrode 8, a second conductive electrode 9, and a cover plate 10; the mounting bracket 1 is provided with a mounting groove 11, the first conductive electrode 8 and the second conductive electrode 9 are mounted in the mounting groove 11, and the first conductive electrode 8 and the second conductive electrode 9 are separately arranged; the first conductive electrode 8 is connected with the air inlet valve assembly, and the cover plate 10 is installed on the installation groove 11; a passage 12 is arranged on the cover plate 10, and an external circuit is electrically connected with the first conductive electrode 8 and the second conductive electrode 9 through the passage 12; when the air inlet pressing end 3 is pressed, the first air path 6 is conducted, and meanwhile the first conductive electrode 8 is in contact with the second conductive electrode 9, so that the first conductive electrode 8 and the second conductive electrode 9 are in circuit conduction.

Specifically, the cover plate 10 may be detachably and fixedly connected to the side wall of the mounting bracket 1 corresponding to the mounting groove 11 by a fastener.

In particular, the first air passage 6 may be as indicated by the arrow in fig. 5; the second air path 7 may be as shown by the arrow in fig. 7.

Specifically, the number of the passages 12 may be one, two or more;

specifically, the external circuit is electrically connected to the first conductive electrode 8 and the second conductive electrode 9 through the passage 12, for example, positive and negative connection terminals of a circuit of a gas source (such as an air pump) may be inserted into the passage 12 to be electrically connected to the first conductive electrode 8, and a negative terminal is inserted into the passage 12 to be electrically connected to the second conductive electrode 9. Of course, besides the gas source, the first conductive electrode 8 and the second conductive electrode 9 can be connected with other circuits, such as a valve body, an indicator light, etc.;

specifically, as shown IN fig. 12, the IN input end is an air inlet channel, the IN input end is connected to an air inlet valve, the positive and negative poles of the switch respectively correspond to the first conductive electrode 8 and the second conductive electrode 9, and the dotted line IN the figure indicates that the valve body is linked with the switch. When the intake passage is open, the switch circuit is closed, and when the intake passage is closed, the switch circuit is open.

The working principle is as follows: in the using process, the first conductive electrode 8 and the second conductive electrode 9 are electrically connected with an external air source, when the air inlet pressing end 3 is pressed, the air inlet valve assembly is conducted with the first air passage 6 between the air valve 5, and the first conductive electrode 8 is contacted with the second conductive electrode 9, as shown in fig. 6, at this time, the circuit is conducted, the external air source is opened, and the air source enters the air valve 5 through the air inlet valve assembly and the first air passage 6 for use.

When pressing when the valve subassembly loses heart, lose heart the valve subassembly with second gas circuit 7 between pneumatic valve 5 switches on, first conductive electrode 8 with the separation of second conductive electrode 9 makes first conductive electrode with the disconnection of second conductive electrode realization circuit, as shown in fig. 8, and then can realize that external air supply closes, because the effect of atmospheric pressure this moment, it loses heart to carry out the pressure release with pneumatic valve 5 accessible second gas circuit 7 and lose heart valve subassembly.

The control switch with the signal output function for the automobile seat has a simple structure, can manually control the valve body and be linked with the circuit to be switched on and off, and can be used for controlling the switching on and off of the circuit in a linkage manner while the switching on and off of the gas circuit of the switch is manually operated, so that the switching on and off of a gas source is controlled; avoiding the need for the intake valve assembly to maintain air supply support at all times.

In the preferred embodiment of the signal assembly, the first conductive electrode 8 has a mounting portion 38 for connecting with the intake valve assembly, a first contact portion 39 for contacting with the second conductive electrode 9, and a first outer terminal 40 for connecting with an external circuit;

the second conductive electrode 9 has a second contact portion 41 for contacting the first contact portion 39 and a second external terminal 42 for connecting to an external circuit.

When the air inlet pressing end 3 is not triggered, a certain interval is formed between the first contact part 39 and the second contact part 41; when the air inlet pressing end 3 is pressed, the air inlet pressing end 3 drives the air inlet valve assembly to act, so that the first conductive electrode 8 is bent, the first contact part 39 is contacted with the second contact part 41, at this time, the first conductive electrode 8 is electrically communicated with the second conductive electrode 9, and signals can be output to the outside through the first external connection end 40 and the second external connection end 42, that is, a signal wire of an external device can be inserted into the passage 12 and is in signal connection with the first external connection end 40 and the second external connection end 42.

In a preferred embodiment of the mounting groove 11, an insulating block 43 for isolating the first external connection end 40 from the second external connection end 42 is disposed on the mounting groove 11; the number of the passages 12 is two, and the two passages 12 are respectively arranged corresponding to the first external connection end 40 and the second external connection end 42.

In use, the positive electrode of the gas source (e.g. air pump) circuit is electrically connected to the first external terminal 40 of the first conductive electrode 8 through one of the vias 12, and the negative electrode of the gas source circuit is electrically connected to the second external terminal 42 of the second conductive electrode 9 through the other via 12.

Further, the mounting bracket 1 may be made of an insulating material, or an insulating layer is disposed in the mounting groove 11, so that the first conductive electrode 8 and the second conductive electrode 9 are insulated from the mounting bracket 1.

In a preferred embodiment of the intake valve assembly, an intake valve mounting hole 13 for mounting the intake valve assembly is formed in the mounting bracket 1, the intake valve mounting hole 13 is communicated with the air valve 5, and a first limiting plate 14 and a second limiting plate 15 are arranged in the intake valve mounting hole 13; the air inlet valve assembly comprises an air inlet thimble 16 and an air inlet nozzle 17; an air inlet valve core 18 is installed in the air inlet nozzle 17, one end of the air inlet thimble 16 is connected with the bottom of the air inlet pressing end 3, and the other end of the air inlet thimble 16 is contacted with or connected with the end part of the air inlet valve core 18; the first conductive electrode 8 is fixedly connected with the air inlet thimble 16; be equipped with first joint portion 19 on the thimble 16 lateral wall admits air, first joint portion 19 is located first limiting plate 14 below, the suction nozzle 17 top is located second limiting plate 15 below.

Specifically, the air inlet thimble 16 and the air inlet valve core 18 may be separately arranged, that is, the end of the air inlet thimble 16 is in contact with or connected to the end of the air inlet valve core 18; as shown in fig. 5, the air intake thimble 16 and the air intake valve core 18 may be integrally provided;

specifically, the first limiting plate 14 and the second limiting plate 15 may be integrally provided with the mounting bracket 1.

The working principle is as follows: when the air inlet pressing end 3 is pressed, the air inlet thimble 16 descends, and the air inlet valve core 18 is connected to the bottom of the air inlet thimble 16, so that the air inlet valve core 18 descends, the first air path 6 is opened, the air path direction of the first air path 6 is shown by an arrow in fig. 5, and an air source can enter the air valve 5 through the air inlet nozzle 17 and the bottom end of the first clamping portion 19; meanwhile, since the first conductive electrode 8 is fixedly connected to the air inlet thimble 16, as the air inlet thimble 16 descends, as shown in fig. 9, the first conductive electrode 8 contacts the second conductive electrode 9, and further, a signal can be output through the path 12, that is, a signal line of an external device can be inserted into the path 12 and be in signal connection with the first external terminal 40 of the first conductive electrode 8 and the second external terminal 42 of the second conductive electrode 9.

When the air release pressing end 4 is pressed, the air inlet pressing end 3 rises, the air inlet thimble 16 rises, the first clamping portion 19 on the air inlet thimble 16 abuts against the bottom of the first limiting plate 14, the second limiting plate 15 is used for limiting the position of the air inlet nozzle 17, the air inlet valve core 18 rises and is clamped at the top of the air inlet nozzle 17 under the action of the air inlet thimble 16, at the moment, the air inlet nozzle 17 is in a closed state, and the first air passage 6 is closed; at the same time, the first conductive electrode 8 is separated from the second conductive electrode 9, and the circuit path is broken.

Specifically, the air valve 5 is used for externally connecting an air path or an air bag body, and the air bag body can be an air bag structure for waist support, leg support, side wing support, hip support and the like.

In a preferred embodiment of the air inlet spike 16, a concave groove 44 is disposed on the air inlet spike 16, and the mounting portion 38 of the first conductive electrode 8 is fixedly connected to the concave groove 44.

In the preferred embodiment of the intake valve assembly, a first return spring 20 is installed in the intake nozzle 17, and the first return spring 20 is located at the bottom of the intake valve core 18; a first sealing ring 21 is arranged between the top of the air inlet nozzle 17 and the second limiting plate 15.

Specifically, the first return spring 20 is used for returning the intake valve element 18.

Specifically, the first sealing ring 21 has a sealing function, so that when the air inlet valve core 18 rises and is clamped with the top of the air inlet nozzle 17, the air inlet valve core 18 is abutted against the first sealing ring 21, and the sealing performance of the air inlet nozzle 17 in a closed state is enhanced.

In the preferred embodiment of the intake valve assembly, a second sealing ring 22 is arranged on the circumference of the outer side wall of the intake thimble 16; the second sealing ring 22 is located between the first limiting plate 14 and the first clamping portion 19; and a third sealing ring 23 is arranged on the circumference of the outer side wall of the air inlet nozzle 17.

Specifically, the second sealing ring 22 and the third sealing ring 23 increase the sealing performance between the intake valve assembly and the intake valve mounting hole 13, so that when the first air path 6 is opened, the gas in the gas source intake nozzle 17 is prevented from leaking out through the edge of the first clamping portion 19 or the edge of the outer wall of the intake nozzle 17.

In a preferred embodiment of the air release valve assembly, as shown in fig. 2, 7 and 10, an air release valve mounting hole 24 for mounting the air release valve assembly is formed in the mounting bracket 1, the air release valve mounting hole 24 is communicated with the air valve 5, and a third limiting plate 24 and a fourth limiting plate 25 are arranged in the air release valve mounting hole 24; the air release valve component comprises an air release thimble 27 and an air release nozzle 28; an air release valve core 29 is installed in the air release nozzle 28, one end of the air release thimble 27 is connected with the bottom of the air release pressing end 4, and the other end of the air release thimble 27 is contacted with or connected with the end part of the air release valve core 29; and a third clamping part 30 is arranged on the outer side wall of the air release thimble 27, the third clamping part 30 is positioned below the third limiting plate 25, and the top of the air release nozzle 27 is positioned below the fourth limiting plate 26.

Specifically, the air release thimble 27 and the air release valve core 29 may be separately arranged, that is, the end of the air release thimble is in contact with or connected with the end of the air release valve core 29; as shown in fig. 7, the air release thimble 27 and the air release valve core 29 may be integrally provided;

specifically, the third stopper plate 24 and the fourth stopper plate 25 may be integrally provided with the mounting bracket 1.

The working principle is as follows:

when pressing end 4 is pressed to lose heart, the thimble 27 that loses heart descends, makes it descends to let out gas case 29, and then makes second gas circuit 7 is opened, and the arrow direction shown in fig. 7 is the gas circuit direction of second gas circuit 7, because the effect of atmospheric pressure this moment, can carry out the pressure release and lose heart through with pneumatic valve 5, third joint portion 30 bottom and disappointing mouth 28.

When pressing into admit air when pressing end 3, the thimble 27 that loses heart rises, the third joint portion 30 butt on the thimble 27 that loses heart is in third limiting plate 25 bottom, fourth limiting plate 26 is used for right it is spacing to lose heart 28 lose heart 27's effect down, it rises and the joint is in to lose heart case 29 that loses heart 28 top, at this moment, it is in the closed condition to lose heart 28, second gas circuit 7 closes.

In the preferred embodiment of the air release valve assembly, a second return spring 31 is installed in the air release nozzle 28, and the second return spring 31 is located at the bottom of the air release valve core 29; specifically, the second return spring 31 is used for returning the relief valve element 29.

In a preferred embodiment of the air release valve assembly, a fourth sealing ring 32 is arranged between the top of the air release nozzle 28 and the fourth limiting plate 26, and a fifth sealing ring 33 is arranged on the circumference of the outer side wall of the air release thimble 27;

the fifth seal ring 33 is located between the third stopper plate 25 and the third engaging portion 30; and a sixth sealing ring 34 is arranged on the circumference of the outer side wall of the air release nozzle 28.

Specifically, the fourth sealing ring 32 has a sealing function, so that when the air release valve core 29 rises and is clamped with the top of the air release nozzle 28, the air release valve core 29 is abutted to the fourth sealing ring 32, and the sealing performance of the air release nozzle 28 in a closed state is enhanced.

Specifically, the fifth sealing ring 33 and the sixth sealing ring 32 increase the sealing performance of the air release valve assembly and the air release valve mounting hole 24, so that when the second air passage 7 is opened, air is prevented from leaking out through the edge of the third clamping portion 30 or the edge of the outer wall of the air release nozzle 28.

Furthermore, a first sealing ring 21 is arranged between the top of the air inlet nozzle 17 and the second limiting plate 15, and a fourth sealing ring 32 is arranged between the top of the air release nozzle 28 and the fourth limiting plate 26. So that the gas in the first gas circuit 6 and the second gas circuit 7 is independently maintained in pressure, and no gas leakage between the first gas circuit 6 and the second gas circuit 7 is ensured.

Further, as shown in fig. 11, the air inlet 17 and/or the lateral wall of the air release nozzle 28 may further have a through hole 35, a blocking ball is disposed in the through hole 35, an assembling hole 37 is correspondingly disposed on the lateral wall of the mounting bracket 1, and the through hole 35 is used for obtaining an air source provided by other control switches or providing an air source for other control switches. For example, as shown in fig. 12, through holes 35 are provided at two ends of the air inlet nozzle 17, and assembling holes 37 are correspondingly provided on the side wall of the mounting frame 1, so that two through holes 35 can be used for providing air supply to other control switches; for example, as shown in fig. 13, the two ends of the air release nozzle are provided with through holes 35, one end of each through hole can be used for obtaining air sources, and the other end of each through hole can be used for providing air sources for other control switches.

In the air leakage state, the air inlet valve assembly does not act and is in a natural state, the first conductive electrode 8 and the second conductive electrode 9 are arranged separately, and the circuit is in a disconnection state.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.