Gas switch valve device

Abstract

The application discloses a gas switch valve device, which comprises a valve body assembly, a valve rod and a top rod. The valve body assembly is provided with an air inlet channel, an electromagnetic valve channel, a main channel and a first air outlet channel which are sequentially communicated. The electromagnetic valve channel is provided with an electromagnetic valve which can block the air outlet of the electromagnetic valve channel. The valve rod is movably inserted into the valve body assembly and is provided with a pushing piece. The valve body assembly is provided with a trigger piece. The top rod is inserted into the main channel. One end of the top rod is connected with the valve rod. The other end of the top rod is connected with a first elastic piece. The top rod can move with the valve rod to push the electromagnetic valve with the first elastic piece. The first elastic piece can act on the electromagnetic valve to remove the blockage of the electromagnetic valve on the air outlet of the electromagnetic valve channel. The valve rod can compress the first elastic piece and drive the pushing piece to move to press against the trigger piece. By arranging the first elastic piece, the valve rod and the top rod can continue to move after pushing the electromagnetic valve into place, which is beneficial to reducing the manufacturing and production assembly requirements of parts and is convenient for production and application.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas equipment, in particular to a gas switch valve device. BACKGROUND

[0002] The existing press type gas switch valve is generally provided with a piezoelectric igniter or a micro switch trigger on the valve body, the trigger is electrically connected with an ignition assembly, an electromagnetic valve and a top rod are arranged in the valve body, a pushing piece is connected with the valve rod, in use, the valve rod is pressed to drive the top rod and the pushing piece to move, the top rod pushes the electromagnetic valve to open the gas outlet of the electromagnetic valve channel, and the pushing piece pushes the trigger to trigger the ignition work of the ignition assembly, so that the output gas is ignited. For the above-mentioned structure of the gas switch valve, since the valve rod needs to push the electromagnetic valve through the top rod and push the trigger through the pushing piece, the manufacturing and processing and production assembly of the valve rod, the top rod and the pushing piece and other parts have high requirements, if the manufacturing and processing error is large or the assembly is not in place, the top rod may be moved to the position and the pushing piece is not moved to the position, or the pushing piece is moved to the position and the top rod is not moved to the position, thereby causing the generation of defective products, which is not convenient for production and application. SUMMARY

[0003] The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application provides a gas switch valve device, the top rod moves with the valve rod to push the electromagnetic valve with the first elastic piece, when the electromagnetic valve is in place, the valve rod can be continuously moved to compress the first elastic piece and drive the pushing piece to move to press the trigger, which is helpful to reduce the manufacturing and processing and production assembly requirements of the parts, improve the yield, and facilitate production and application.

[0004] The gas switch valve device according to the embodiment of the present application comprises a valve body assembly, a valve rod and a top rod, the valve body assembly is provided with an air inlet channel, an electromagnetic valve channel, a main channel and a first air outlet channel which are sequentially communicated, the electromagnetic valve channel is provided with an electromagnetic valve, the electromagnetic valve can block the gas outlet of the electromagnetic valve channel, the valve rod is movably inserted into the valve body assembly, the valve rod is provided with a pushing piece, the valve body assembly is provided with a trigger, the top rod is inserted into the main channel, one end of the top rod is connected with the valve rod, the other end of the top rod is connected with a first elastic piece, the top rod can move with the valve rod to push the electromagnetic valve with the first elastic piece, the first elastic piece can act on the electromagnetic valve and remove the blockage of the electromagnetic valve to the gas outlet of the electromagnetic valve channel, and the valve rod can compress the first elastic piece and drive the pushing piece to move to press the trigger.

[0005] The gas switch valve device has at least the following beneficial effects: when in use, gas is input from the gas inlet channel to the electromagnetic valve channel, the upper part of the electromagnetic valve blocks the gas outlet of the electromagnetic valve channel, thereby disconnecting the electromagnetic valve channel and the main channel; the valve rod is operated to move downward and drive the top rod to move downward, the top rod moves to push the electromagnetic valve by the first elastic member, thereby unblocking the gas outlet of the electromagnetic valve channel; when the top rod is in place by pushing the electromagnetic valve by the first elastic member, the valve rod can continue to move and drive the top rod to move, the first elastic member is compressed by the valve rod through the top rod, and the push member continues to move by the first elastic member, so that the push member can move to press the trigger member. The structure of the device is simple and reasonable, the valve rod and the top rod can continue to move after the electromagnetic valve is in place by arranging the first elastic member, the push member presses the trigger member, which is beneficial to reduce the manufacturing and production assembly requirements of parts, improve the yield, and facilitate production and application.

[0006] According to some embodiments of the present application, the upper end of the top rod is provided with a first annular clamping groove, and the valve rod is provided with a insertion hole for inserting the upper end of the top rod, and the hole wall of the insertion hole is provided with a necked portion clamped into the first annular clamping groove.

[0007] According to some embodiments of the present application, the lower end of the valve rod is provided with a second elastic member, and the two ends of the second elastic member act on the valve rod and the valve body assembly respectively.

[0008] According to some embodiments of the present application, the valve body assembly comprises a connecting seat connected to the main channel and provided with a secondary channel for inserting the lower end of the valve rod, and the top rod passes through the connecting seat and is provided with a first limiting member located in the main channel, and the second elastic member is located in the secondary channel and can make the first limiting member abut against the lower side of the connecting seat.

[0009] According to some embodiments of the present application, the valve body assembly further comprises a valve main body and a connecting frame, the gas inlet channel, the electromagnetic valve channel, the main channel and the first gas outlet channel are all arranged in the valve main body, the connecting seat is threadedly connected with the valve main body and clamps and fixes the connecting frame, and the trigger member is arranged in the connecting frame.

[0010] According to some embodiments of the present application, the first elastic member is a spring, the lower end of the top rod is provided with a second annular clamping groove, the first elastic member is sleeved on the lower end of the top rod, and the upper end of the first elastic member is clamped in the second annular clamping groove.

[0011] According to some embodiments of the present application, the valve body assembly is further provided with a second gas outlet channel, and the second gas outlet channel can communicate with the main channel.

[0012] According to some embodiments of the present application, a connecting channel is arranged between the main channel and the electromagnetic valve channel and communicates therebetween, the second gas outlet channel communicates with the connecting channel, and a blocking member is connected to the lower end of the ejector rod and is located above the first elastic member and can disconnect the communication between the connecting channel and the main channel.

[0013] According to some embodiments of the present application, the blocking member is movably sleeved on the ejector rod, and a third elastic member is arranged on the ejector rod and is located above the blocking member and acts on the blocking member.

[0014] According to some embodiments of the present application, a first limiting member and a second limiting member are arranged on the ejector rod, the first limiting member and the second limiting member are both located in the main channel, the first limiting member is located above the third elastic member, the second limiting member is located below the blocking member, the upper end of the third elastic member acts on the first limiting member, and the blocking member can abut against the second limiting member under the action of the third elastic member.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent in part from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 FIG. 1 is a structural schematic diagram of a gas switch valve device according to an embodiment of the present application;

[0018] Figure 2 FIG. 2 is a sectional structural schematic diagram of the gas switch valve device in FIG. 1; Figure 1

[0019] FIG. 3 is a sectional structural schematic diagram of a valve body assembly in FIG. 2; Figure 3 Figure 2 FIG. 4 is a sectional structural schematic diagram of a valve rod and an ejector rod in FIG. 3.

[0020] Figure 4 Figure 2 FIG. 5 is a partial sectional structural schematic diagram of the valve rod and the ejector rod in FIG. 4.

[0021] REFERENCE NUMERALS:

[0022] Valve body assembly 100, gas inlet channel 101, electromagnetic valve channel 102, connecting channel 103, main channel 104, first gas outlet channel 105, second gas outlet channel 106, valve body 110, connecting seat 120, auxiliary channel 121, connecting frame 130;

[0023] ​​Valve stem 200, jack 201, necked portion 202, push piece 210, second elastic piece 220;

[0024] Top rod 300, first annular clamping slot 301, second annular clamping slot 302, first elastic piece 310, first limiting piece 320, plugging piece 330, third elastic piece 340, second limiting piece 350;

[0025] Solenoid valve 400, trigger piece 500. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it is understood that if the orientation description is involved, for example, the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] If it is described as first, second, only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model provides a gas switch valve device, it includes valve body assembly 100, valve rod 200 and top rod 300, valve body assembly 100 is equipped with the air inlet channel 101, solenoid valve channel 102, main channel 104, first air outlet channel 105 that communicate in proper order, solenoid valve channel 102 is equipped with solenoid valve 400, solenoid valve 400 can block the air outlet of solenoid valve channel 102, valve rod 200 is movably inserted in valve body assembly 100, valve rod 200 is equipped with pusher 210, valve body assembly 100 is equipped with trigger 500, top rod 300 is inserted in main channel 104, one end of top rod 300 is connected with valve rod 200, the other end of top rod 300 is connected with first elastic member 310, and top rod 300 can move to solenoid valve 400 with valve rod 200 and push, and first elastic member 310 can act on solenoid valve 400 and remove the block of solenoid valve 400 to the air outlet of solenoid valve channel 102, and valve rod 200 can compress first elastic member 310 and drive pusher 210 to move to resist and press trigger 500.

[0031] It can be understood that, as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 indicated, in use, gas is input from the air inlet channel 101 to the solenoid valve channel 102, and the upper part of the solenoid valve 400 blocks the air outlet of the solenoid valve channel 102, so as to disconnect the communication between the solenoid valve channel 102 and the main channel 104; when gas output control and ignition are performed, the valve rod 200 is operated to move downward and drive the top rod 300 to move downward, and the top rod 300 moves to push the solenoid valve 400 with the first elastic member 310, so as to remove the block of the solenoid valve 400 to the air outlet of the solenoid valve channel 102; when the top rod 300 pushes the solenoid valve 400 to the position with the first elastic member 310, the valve rod 200 can be continuously moved and drive the top rod 300 to move, and by using the compressibility of the first elastic member 310, the valve rod 200 compresses the first elastic member 310 with the top rod 300 and drives the pusher 210 to continuously move, so that the pusher 210 can move to resist and press the trigger 500. The utility model has simple and reasonable structure, by arranging the first elastic member 310, the valve rod 200 and the top rod 300 can continuously move after pushing the solenoid valve 400 to the position, so that the pusher 210 resists and presses the trigger 500, which is beneficial to reduce the manufacturing and production assembly requirements of parts, improve the yield, and facilitate production and application.

[0032] In actual application, the specific structure of the valve body assembly 100, the valve rod 200 and the top rod 300 can be set according to actual use needs, which will not be described in detail here, and will be described in detail below; the trigger 500 in the application can be a micro switch, a piezoelectric igniter, etc. Since the specific structure of the electromagnetic valve 400 and the trigger 500 in the embodiment of the application is known to those skilled in the art, it will not be described in detail here.

[0033] In some embodiments, the upper end of the top rod 300 is provided with a first annular clamping groove 301, and the valve rod 200 is provided with a insertion hole 201 for inserting the upper end of the top rod 300, and the hole wall of the insertion hole 201 is provided with a necked portion 202 clamped into the first annular clamping groove 301.

[0034] As can be understood, as shown in Figure 2 , Figure 4 the upper end of the top rod 300 is inserted into the insertion hole 201 and clamped into the first annular clamping groove 301 through the necked portion 202, so as to realize the connection between the top rod 300 and the valve rod 200. The connection structure is simple and reliable, and facilitates the movement of the valve rod 200 to drive the top rod 300.

[0035] In actual application, the necked portion 202 can be formed by riveting and clamped into the first annular clamping groove 301 to realize the connection between the top rod 300 and the valve rod 200. In addition to the above structure, the top rod 300 and the valve rod 200 can also be connected by a latch or a threaded connection, which can be set according to actual use needs.

[0036] In some embodiments, the lower end of the valve rod 200 is provided with a second elastic member 220, and the two ends of the second elastic member 220 act on the valve rod 200 and the valve body assembly 100, respectively.

[0037] As can be understood, as shown in Figure 2 , Figure 3 and Figure 4 , the second elastic member 220 is a spring and is sleeved on the upper part of the top rod 300, and the upper and lower ends of the second elastic member 220 act on the valve rod 200 and the valve body assembly 100, respectively. In use, the valve rod 200 is operated to move downward and compress the second elastic member 220, and after the top pushing of the electromagnetic valve 400 and the pressing of the trigger 500 are completed, the valve rod 200 is released, the valve rod 200 can move upward to reset under the action of the second elastic member 220 and drive the top rod 300 to reset upward, realizing the automatic reset of the valve rod 200 and the top rod 300, which is convenient for the user to operate.

[0038] In practical application, the second elastic member 220 can also be a spring or other elastic member, and gaskets can be arranged on the upper and lower ends of the second elastic member 220 to facilitate the action of the second elastic member 220 on the valve rod 200 and the valve body assembly 100. The upward reset of the valve rod 200 and the top rod 300 can also be manually performed, and the specific reset mode can be set according to actual needs.

[0039] In some embodiments, the valve body assembly 100 includes a connecting seat 120 connected to the main channel 104 and provided with a secondary channel 121 for inserting the lower end of the valve rod 200. The top rod 300 passes through the connecting seat 120 and is provided with a first limiting member 320 located in the main channel 104. The second elastic member 220 is located in the secondary channel 121 and can make the first limiting member 320 abut against the lower side of the connecting seat 120.

[0040] It can be understood that, as shown in Figure 2 , Figure 3 and Figure 4 , the lower end of the valve rod 200 is inserted into the secondary channel 121 to guide the up-down movement of the valve rod 200 through the secondary channel 121. The top rod 300 passes through the connecting seat 120 and is provided with a first limiting member 320 located in the main channel 104. The first limiting member 320 is a circlip structure, and under the action of the second elastic member 220, the first limiting member 320 abuts against the lower side of the connecting seat 120 to limit the maximum stroke position of the upward movement of the top rod 300, thereby limiting the maximum stroke position of the upward movement of the valve rod 200 and preventing the valve rod 200 from being separated from the connecting seat 120. The relative movement stroke between the connecting seat 120 and the valve rod 200 is limited, which has a simple structure and can facilitate the installation and connection between the valve rod 200, the top rod 300, the second elastic member 220, and the connecting seat 120, thereby facilitating use.

[0041] In practical application, the specific structure of the connecting seat 120 and the first limiting member 320 can be set according to actual needs.

[0042] In some embodiments, the valve body assembly 100 further includes a valve body 110 and a connecting frame 130. The air inlet channel 101, the electromagnetic valve channel 102, the main channel 104, and the first air outlet channel 105 are arranged in the valve body 110. The connecting seat 120 is threadedly connected to the valve body 110 and clamps the connecting frame 130. The trigger member 500 is arranged in the connecting frame 130.

[0043] It can be understood that, as shown in Figure 1 , Figure 2 and Figure 3As shown, the air inlet channel 101, the electromagnetic valve channel 102, the connecting channel 103, the main channel 104 and the first air outlet channel 105 are arranged on the valve body 110, the connecting seat 120 is threadedly connected to the valve body 110 and located on the upper side of the main channel 104, so as to facilitate the lower structure of the ejector rod 300 to be arranged in the main channel 104; the trigger piece 500 is arranged on the upper part of the connecting frame 130 clamped between the connecting seat 120 and the valve body 110, so as to facilitate the assembly and connection of the trigger piece 500, and the structure is simple and convenient to use.

[0044] In actual application, the specific structure of the valve body assembly 100 can be changed according to actual use needs, and those skilled in the art should understand that details are not repeated here.

[0045] In some embodiments, the first elastic piece 310 is a spring, the lower end of the ejector rod 300 is provided with a second annular clamping groove 302, and the first elastic piece 310 is sleeved on the lower end of the ejector rod 300, and the upper end of the first elastic piece 310 is clamped in the second annular clamping groove 302.

[0046] It can be understood that, as shown in Figure 2 and Figure 4 , the first elastic piece 310 is sleeved on the lower end of the ejector rod 300, and the upper end of the first elastic piece 310 is clamped in the second annular clamping groove 302, so as to realize the mounting and connection between the first elastic piece 310 and the ejector rod 300, and the structure is simple and convenient for the assembly and connection of the first elastic piece 310 and the ejector rod 300.

[0047] In actual application, the first elastic piece 310 can also be a spring or other elastic piece structure, and in addition to the above structure, the first elastic piece 310 can also be welded on the lower end of the ejector rod 300, and the specific structure can be changed according to actual use needs.

[0048] In some embodiments, the valve body assembly 100 is further provided with a second air outlet channel 106, and the second air outlet channel 106 can communicate with the main channel 104.

[0049] It can be understood that, as shown in Figure 1 , Figure 2 and Figure 3 , by arranging the second air outlet channel 106, in use, the long-lasting fire assembly can be connected by a pipeline, and gas can be supplied from the second air outlet channel 106 to the long-lasting fire assembly to realize ignition and oxygen deficiency protection function, and the structure is simple and convenient for use.

[0050] In actual application, the second gas outlet channel 106 can be arranged to communicate with the main channel 104 or the first gas outlet channel 105, or other channels on the valve body assembly 100 communicating with the electromagnetic valve channel 102, and the second gas outlet channel 106 communicates with the channel, which can be set according to actual needs.

[0051] In some embodiments, the main channel 104 and the electromagnetic valve channel 102 are connected by a connecting channel 103, and the second gas outlet channel 106 communicates with the connecting channel 103. The lower end of the top rod 300 is connected with a blocking piece 330, which is located on the upper side of the first elastic piece 310 and can disconnect the communication between the connecting channel 103 and the main channel 104.

[0052] It can be understood that, as shown in Figure 2 , Figure 3 and Figure 4 , the main channel 104 and the electromagnetic valve channel 102 are connected by a connecting channel 103, and the second gas outlet channel 106 communicates with the connecting channel 103. In use, the top rod 300 moves downward and pushes the electromagnetic valve 400 through the first elastic piece 310, so that the gas outlet of the electromagnetic valve channel 102 is opened, and the upper end channel of the connecting channel 103 is blocked by the blocking piece 330 to disconnect the communication between the connecting channel 103 and the main channel 104, so that the gas is output from the second gas outlet channel 106 to the long-lasting fire assembly. The valve rod 200 is pressed against the trigger piece 500 through the pressing piece 210, thereby triggering ignition, and then the valve rod 200 and the top rod 300 move upward to reset, the blocking piece 330 unblocks the upper end channel of the connecting channel 103, the gas is input into the main channel 104 and output to the burner through the first gas outlet channel 105, and is ignited by the long-lasting fire assembly. By arranging the connecting channel 103 and the blocking piece 330, the gas is output from the second gas outlet channel 106 to the long-lasting fire assembly for ignition, and the communication between the connecting channel 103 and the main channel 104 is disconnected, so as to avoid the gas being output from the first gas outlet channel 105, thereby facilitating to avoid the situation that the two gas outlet channels output gas at the same time and cause deflagration during ignition, and improving the safety in use.

[0053] In actual application, the second gas outlet channel 106 can also directly communicate with the main channel 104, and the first gas outlet channel 105 is blocked by the blocking piece 330, thereby disconnecting the communication between the main channel 104 and the first gas outlet channel 105, and realizing the function of avoiding ignition deflagration. The specific setting can be made according to actual needs.

[0054] In some embodiments, the blocking piece 330 is movably sleeved on the top rod 300, and the third elastic piece 340 is arranged on the top rod 300 and acts on the upper side of the blocking piece 330.

[0055] It can be understood that, as shown in Figure 2 , Figure 3 and Figure 4 , in use, the top rod 300 moves downward to make the blocking piece 330 block the upper end passage opening of the connecting passage 103, first disconnect the communication between the connecting passage 103 and the main passage 104, and then the top rod 300 continues to move downward, compresses the third elastic piece 340, and relative movement occurs between the top rod 300 and the blocking piece 330, the top rod 300 moves to push the electromagnetic valve 400 with the first elastic piece 310, to make the electromagnetic valve passage 102 communicate with the connecting passage 103, and realize the output of gas from the second gas outlet passage 106. Through the above structure, it is beneficial to realize the sequence control of first disconnecting the communication between the connecting passage 103 and the main passage 104, and then opening the communication between the electromagnetic valve passage 102 and the connecting passage 103, to further reduce the possibility of simultaneous output of gas from the two gas outlet passages, and improve the use reliability; and when the blocking piece 330 blocks the upper end passage opening of the connecting passage 103, the third elastic piece 340 acts on the blocking piece 330, which can make it achieve better blocking effect, and when the top rod 300 moves upward, the third elastic piece 340 can also facilitate the upward reset movement of the top rod 300, which is convenient to use.

[0056] In actual application, the blocking piece 330 can also be fixedly connected to the top rod 300, and by setting the connection position of the blocking piece 330 on the top rod 300, the blocking piece 330 blocks the upper end passage opening of the connecting passage 103 at the same time when the first elastic piece 310 pushes the electromagnetic valve 400, or the blocking piece 330 blocks the upper end passage opening of the connecting passage 103 at the same time when the electromagnetic valve 400 is pushed to the position, and the specific structure and connection mode of the blocking piece 330 can be changed accordingly according to actual use needs.

[0057] In some embodiments, the top rod 300 is provided with a first limiting piece 320 and a second limiting piece 350, the first limiting piece 320 and the second limiting piece 350 are both located in the main passage 104, the first limiting piece 320 is located on the upper side of the third elastic piece 340, and the second limiting piece 350 is located on the lower side of the blocking piece 330, the upper end of the third elastic piece 340 acts on the first limiting piece 320, and the blocking piece 330 can abut against the second limiting piece 350 under the action of the third elastic piece 340.

[0058] It can be understood that, as shown in Figure 2 and Figure 4As shown, the first limiting member 320 and the second limiting member 350 on the top rod 300 are both located in the main channel 104, and the third elastic member 340 is a tower spring, the upper and lower ends of which are provided with washers and act on the first limiting member 320 and the blocking member 330 respectively, so that the blocking member 330 abuts against the second limiting member 350 under the action of the third elastic member 340. Through the first limiting member 320 and the second limiting member 350, the position of the third elastic member 340 and the blocking member 330 on the top rod 300 can be better limited, and at the same time, the top rod 300 can conveniently drive the third elastic member 340 and the blocking member 330 to move, which is convenient for use.

[0059] In actual application, in addition to the above structure, the upper end of the third elastic member 340 can be bonded or welded with the top rod 300, and the lower end of the third elastic member 340 can be bonded with the blocking member 330, so as to realize the connection between the top rod 300, the third elastic member 340 and the blocking member 330, and the specific changes can be made according to the actual use needs.

[0060] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art in the technical field without departing from the purpose of the application.

Claims

1. A gas switch valve apparatus, characterized by, The utility model relates to a gas switch valve device, including: Valve body assembly (100), the valve body assembly (100) is equipped with the air inlet channel (101) that communicates in turn, solenoid valve channel (102), main channel (104), first air outlet channel (105), be equipped with solenoid valve (400) in solenoid valve channel (102), solenoid valve (400) can block the air outlet of solenoid valve channel (102); Valve stem (200), activity inserts in valve body assembly (100), be equipped with pusher (210) on valve stem (200), be equipped with trigger (500) on valve body assembly (100); Jackscrew (300), insert in main channel (104), one end of jackscrew (300) is connected with valve stem (200), the other end of jackscrew (300) is connected with first elastic member (310), jackscrew (300) can move with valve stem (200) to make first elastic member (310) push solenoid valve (400), first elastic member (310) can act on solenoid valve (400) and remove the block of solenoid valve (400) to the air outlet of solenoid valve channel (102), valve stem (200) can compress first elastic member (310) and drive pusher (210) to move to resist pressure trigger (500).

2. The gas switch valve device according to claim 1, wherein: An upper end of the jackscrew (300) is provided with a first annular clamping groove (301), and the valve stem (200) is provided with a insertion hole (201) for inserting the upper end of the jackscrew (300), and a necked portion (202) of the insertion hole (201) is clamped into the first annular clamping groove (301).

3. The gas switch valve device according to claim 2, wherein: A lower end of the valve stem (200) is provided with a second elastic member (220), and both ends of the second elastic member (220) act on the valve stem (200) and the valve body assembly (100) respectively.

4. The gas switch valve device according to claim 3, wherein: The valve body assembly (100) comprises a connecting seat (120), the connecting seat (120) is connected to the main channel (104) and is provided with a secondary channel (121) for inserting the lower end of the valve stem (200), the jackscrew (300) passes through the connecting seat (120) and is provided with a first limiting member (320) located in the main channel (104), and the second elastic member (220) is located in the secondary channel (121) and can make the first limiting member (320) abut against a lower side of the connecting seat (120).

5. The gas switch valve device according to claim 4, wherein: The valve body assembly (100) further comprises a valve main body (110) and a connecting frame (130), the air inlet channel (101), the electromagnetic valve channel (102), the main channel (104) and the first air outlet channel (105) are all arranged on the valve main body (110), the connecting seat (120) is threadedly connected between the valve main body (110) and clamps and fixes the connecting frame (130), and the trigger (500) is arranged on the connecting frame (130). 6.The gas switch valve device according to claim 1, characterized in that, The first elastic member (310) is a spring, the lower end of the jack (300) is provided with a second annular clamping groove (302), and the first elastic member (310) is sleeved on the lower end of the jack (300), and the upper end of the first elastic member (310) is clamped in the second annular clamping groove (302). 7.The gas switch valve device according to claim 1, characterized in that, The valve body assembly (100) is further provided with a second air outlet channel (106), and the second air outlet channel (106) can communicate with the main channel (104). 8.The gas switch valve device according to claim 7, characterized in that, The main channel (104) and the electromagnetic valve channel (102) are provided with a connecting channel (103) and communicate through the connecting channel (103), the second air outlet channel (106) is communicated with the connecting channel (103), the lower end of the jack (300) is connected with a blocking member (330), the blocking member (330) is located on the upper side of the first elastic member (310) and can disconnect the communication between the connecting channel (103) and the main channel (104). 9.The gas switch valve device according to claim 8, characterized in that, The blocking member (330) is movably sleeved on the jack (300), the jack (300) is provided with a third elastic member (340), the third elastic member (340) is located on the upper side of the blocking member (330) and acts on the blocking member (330). 10.The gas switch valve device according to claim 9, characterized in that, The jack (300) is provided with a first limiting member (320) and a second limiting member (350), the first limiting member (320) and the second limiting member (350) are both located in the main channel (104), the first limiting member (320) is located on the upper side of the third elastic member (340), the second limiting member (350) is located on the lower side of the blocking member (330), the upper end of the third elastic member (340) acts on the first limiting member (320), and the blocking member (330) can abut against the second limiting member (350) under the action of the third elastic member (340).

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