CN219815097U - Gas fire-extinguishing container valve - Google Patents

Abstract

The utility model discloses a gas fire-extinguishing container valve, which comprises a valve body, a valve core and a valve cover assembly, wherein the pressure of an exhaust cavity and an air inlet cavity in the valve body of the valve after filling is balanced, and the volume of the exhaust cavity is larger than that of the air inlet cavity, so that pressure difference is formed, and a limiting block on the side surface of the valve core is tightly attached to the valve body, thereby realizing valve sealing. When the valve is used, the diaphragm cover is pierced, gas in the exhaust cavity inside the valve body is discharged through the cooperation of the gas flow channel, the gas inlet hole and the communicated air channel in the sealing stop lever, so that the pressure of the exhaust cavity is instantaneously lost, the valve core is moved upwards, and the valve is opened. Simultaneously the valve core moves up for in the gas runner of valve core was inserted to the sealed pin, the piston on the sealed pin stopped up gas runner, makes gas unable from flowing out in the gas runner, has solved present fire extinguishing container valve when using, and fire extinguishing gas can follow the pressure release mouth at valve top and last spun problem, is favorable to reducing the waste of fire extinguishing gas.

Description

Gas fire-extinguishing container valve

Technical Field

The utility model relates to the technical field of fire-fighting equipment, in particular to a gas fire-extinguishing container valve.

Background

With the rapid development of gas fire extinguishing technology, a plurality of storable fire extinguishing containers are arranged, and the occurrence of the fire extinguishing containers greatly reduces the damage of fire disasters to personnel and finance. The main current fire extinguishing container is a gas filled fire extinguishing container, wherein the gas filled in the fire extinguishing container can be heptafluoropropane or nitrogen gas. The storage of gas requires a very strong tightness of the container, so that fire extinguishing containers are usually used in combination with container valves.

The container valve that uses on the present fire extinguishing container generally is through setting up the diaphragm at the valve body top, when using, pierces the diaphragm and opens the valve through pressure difference, but this kind of valve is when the diaphragm is pricked, fire extinguishing gas can last to be used for the hole of pressure release to ooze continuously through upper portion and lead to fire extinguishing gas extravagant, is unfavorable for the use of fire extinguishing container, probably leads to fire extinguishing gas extravagant too much to lead to fire extinguishing efficiency to decline even.

The application number is: 201020614901.7 the utility model with publication number CN201891915U discloses a heptafluoropropane container valve, which comprises a valve body, a piston assembly, a valve cover, a metal diaphragm, a discharge pressure cap and other structures, but the problem that fire extinguishing gas is continuously sprayed out from a pressure relief opening at the top of the fire extinguishing container valve during use still exists in the technology.

Disclosure of Invention

Based on the above, the utility model provides a gas fire-extinguishing container valve, which solves the problem that fire-extinguishing gas is continuously sprayed out from a pressure relief opening at the top of the valve when the conventional fire-extinguishing container valve is used, and is beneficial to reducing the waste of fire-extinguishing gas.

The technical scheme of the utility model is as follows:

the gas fire-extinguishing container valve comprises a valve body, a valve core and a valve cover assembly, wherein the valve core is arranged in the valve body, the valve body is internally provided with an air inlet cavity at the bottom, an air outlet cavity at the top and an air outlet cavity at the side, the volume of the air outlet cavity is larger than that of the air inlet cavity, and the valve cover assembly is arranged at the top of the valve body;

the sealing stop lever assembly comprises a sealing stop lever mounting groove and a sealing stop lever, the sealing stop lever mounting groove is arranged at the bottom of the cover body, a gas flow passage and a gas inlet communicated with the gas flow passage are formed in the sealing stop lever, one end of the sealing stop lever is arranged in the sealing stop lever mounting groove, the other end of the sealing stop lever is connected with a piston, and the gas flow passage is communicated with the communication air passage;

the valve core is provided with an air inlet channel for communicating the exhaust cavity with the air inlet cavity, and the side surface of the lower end of the valve core is provided with a limiting block.

Preferably, the membrane cover comprises an upper cover body and a lower cover body, wherein gas leakage flow passages are formed in the upper cover body and the lower cover body, a protective membrane is arranged between the upper cover body and the lower cover body, the upper cover body and the lower cover body are detachably connected, and a puncture assembly for puncturing the protective membrane is arranged in the upper cover body.

Preferably, the bottom of the valve core is provided with a first sealing ring, the bottom of the valve core is also provided with a fixing bolt, the fixing bolt is provided with a stainless steel pipe used for communicating the air inlet cavity with the air inlet flow passage, and a stainless steel wire is arranged in the stainless steel pipe.

Preferably, a first spring is arranged between the valve core and the cover body, and the first spring is sleeved on the outer side of the sealing stop lever.

Preferably, the puncture assembly comprises two installation blocks arranged at the bottom of the gas leakage flow channel in the upper cover body, a connecting sliding column is arranged on the installation blocks, a pressing plate is arranged at the top of the connecting sliding column, the connecting sliding column penetrates through the pressing plate and is in sliding connection with the pressing plate, a second spring is sleeved outside the connecting sliding column, one end of the second spring is connected with the installation blocks, the other end of the second spring is connected with the pressing plate, and a puncture block for puncturing the protective membrane is arranged at the bottom of the pressing plate.

Preferably, the valve body is further provided with a filling interface for filling fire extinguishing gas, the filling interface is communicated with an air inlet cavity in the valve body, a pressure gauge interface is arranged on the filling interface, the pressure gauge interface is connected with a pressure gauge, the joint is provided with a second sealing ring, the filling interface is detachably provided with a blocking plug, the blocking plug is in threaded connection with the filling interface, and the joint is provided with a third sealing ring.

Preferably, the valve body is further provided with a pressure relief interface, the pressure relief interface is connected with a safety relief device communicated with an air inlet cavity in the valve body, the safety relief device comprises a safety screw plug and a safety pressing ring assembly, a pressure relief runner is arranged in the safety screw plug, a pressure relief hole communicated with the pressure relief runner is formed in the safety screw plug, the safety screw plug is inserted into the pressure relief interface, one side of the pressure relief interface is provided with the safety pressing ring assembly, the safety pressing ring assembly comprises a safety pressing ring and a safety gasket, one side of the safety pressing ring is connected with the safety screw plug, the other side of the safety pressing ring is connected with the safety gasket, and a pressure relief protection film is arranged in the safety pressing ring.

Preferably, the lower end of the valve body is provided with a thread for connecting the fire extinguishing container, the bottom of the valve body is also provided with a siphon pipe joint, the siphon pipe joint is arranged in the air inlet cavity and communicated with the air inlet cavity, and the siphon pipe joint can be connected with a siphon pipe.

Preferably, the lower end of the valve body is also provided with a fourth sealing ring which is used for being matched with the valve body to be in sealing connection with the fire extinguishing container.

Preferably, a fifth sealing ring used for being matched with the diaphragm cover to be in sealing connection with the valve body is arranged at the contact part of the diaphragm cover and the valve body.

Compared with the prior art, the utility model has the beneficial effects that:

the pressure of the exhaust cavity is greater than that of the air inlet cavity, so that a limit block on the side surface of the valve core is tightly attached to the valve body, and the valve is sealed. When the valve is used, the diaphragm cover is pierced, gas in the exhaust cavity inside the valve body is discharged through the cooperation of the gas flow channel, the gas inlet hole and the communicated air channel in the sealing stop lever, so that the pressure in the exhaust cavity is instantaneously lost, and the pressure in the inlet cavity is unchanged at the moment, so that the valve core moves upwards, and the valve is opened. Simultaneously the valve core moves up for in the gas runner of valve core was inserted to the sealed pin, the piston on the sealed pin stopped up gas runner, makes gas unable from flowing out in the gas runner, has solved present fire extinguishing container valve when using, and fire extinguishing gas can follow the pressure release mouth at valve top and last spun problem, is favorable to reducing the waste of fire extinguishing gas.

Drawings

FIG. 1 is a schematic cross-sectional view of a gas fire suppression container valve according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a portion of a gas fire suppression container valve according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a cap according to an embodiment of the present utility model;

reference numerals illustrate:

10-valve body, 110-air inlet cavity, 120-air outlet cavity, 130-air outlet cavity, 20-valve core, 200-air inlet runner, 210-first sealing ring, 220-fixing bolt, 230-stainless steel tube, 240-stainless steel wire, 250-limiting block, 251-third sealing ring, 30-valve cover component, 300-cover body, 301-first sealing ring, 302-second sealing ring, 310-diaphragm cover mounting groove, 320-diaphragm cover, 321-upper cover body, 322-lower cover body, 323-air outlet runner, 324-protective diaphragm, 330-piercing component, 331-mounting block, 332-connecting slide post, 333-pressing plate, 334-second spring, 335-piercing block, 340-connecting air channel, 350-sealing bar component, 351-sealing bar mounting groove, 352-sealing bar, 353-gas inlet hole, 354-piston, 355-gas flow channel, 360-first spring, 40-filling interface, 41-pressure gauge interface, 42-pressure gauge, 43-blocking plug, 44-second sealing ring, 45-third sealing ring, 50-pressure relief interface, 500-safety relief device, 510-safety screw plug, 520-safety pressure ring component, 521-safety pressure ring, 522-safety washer, 523-pressure relief protective film, 530-pressure relief flow channel, 540-pressure relief hole, 60-screw thread, 61-siphon joint, 62-fourth sealing ring, 63-fifth sealing ring, 70-cap, 71-trachoma, 72-ring seal.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Examples:

as shown in fig. 1 to 3, the present embodiment discloses a gas fire-extinguishing container valve, including a valve body 10, a valve core 20 and a valve cover assembly 30, wherein the valve core 20 is disposed in the valve body 10, the interior of the valve body 10 is divided into a bottom air inlet cavity 110, a top air outlet cavity 120 and a side air outlet cavity 130, the volume of the air outlet cavity 120 is larger than that of the air inlet cavity 110, and the valve cover assembly 30 is disposed at the top of the valve body 10, and the valve cover assembly 30 is characterized in that the valve cover assembly 30 includes a cover body 300, a diaphragm cover mounting groove 310 and a communication air passage 340 are formed in the cover body 300, a diaphragm cover 320 is mounted in the diaphragm cover mounting groove 310, and the communication air passage 340 is used for communicating the air outlet cavity 120 with the diaphragm cover mounting groove 310, and a sealing stop lever assembly 350 is disposed at the bottom of the cover body 300;

the sealing stop lever assembly 350 comprises a sealing stop lever mounting groove 351 and a sealing stop lever 352, the sealing stop lever mounting groove 351 is arranged at the bottom of the cover body 300, a gas flow passage 355 and a gas inlet 353 communicated with the gas flow passage 355 are formed in the sealing stop lever 352, one end of the sealing stop lever 352 is mounted in the sealing stop lever mounting groove 351, the other end of the sealing stop lever 352 is connected with a piston 354, and the gas flow passage 355 is communicated with the communication air passage 340;

the valve core 20 is provided with an air inlet channel 200 for communicating the exhaust cavity 120 and the air inlet cavity, and the side surface of the lower end of the valve core 20 is provided with a limiting block 250.

The volumes of the exhaust cavity 120 and the air inlet cavity 110 are reasonably arranged, the volume of the exhaust cavity 120 is 500ml at the maximum, the volume of the air inlet cavity 110 is 250ml at the maximum, the pressure of the exhaust cavity 120 and the air inlet cavity 110 inside the valve body 10 of the valve after filling is balanced, and as the volume of the exhaust cavity 120 is larger than that of the air inlet cavity 110, a pressure difference is formed, the pressure of the exhaust cavity 120 is larger than that of the air inlet cavity 110, and the limiting block 250 on the side face of the valve core 20 is tightly attached to the valve body 10, so that the valve is sealed. When in use, through puncturing the diaphragm cover 320, the gas in the exhaust cavity 120 in the valve body 10 is discharged through the gas flow passage 355 in the sealing stop lever 352, the gas inlet 353 on the sealing stop lever 352 and the matched discharge of the communicating air passage 340, so that the exhaust cavity 120 is instantaneously depressurized, and the pressure in the gas inlet cavity 110 is unchanged at the moment, so that the valve core 20 moves upwards, and the valve is opened. Simultaneously, the valve core 20 moves upwards, so that the sealing stop rod 352 is inserted into the gas flow passage 355 of the valve core 20, and the piston 354 on the sealing stop rod 352 blocks the gas flow passage 355, so that gas cannot flow out of the gas flow passage 355, the problem that fire extinguishing gas is continuously sprayed out from the pressure relief opening at the top of the valve when the conventional fire extinguishing container valve is used is solved, and the waste of the fire extinguishing gas is reduced.

In order to provide better tightness for the valve, a first sealing ring 301 and a second sealing ring 302 are disposed at the joint of the cover 300 in the valve cover assembly 30 and the valve body 10, and a third sealing ring 251 is disposed at the bottom of the limiting block 250 of the valve core 20.

For better use of the fire extinguishing container, it is further preferable that the membrane cover 320 includes an upper cover body 321 and a lower cover body 322, gas leakage flow passages 323 are formed in the upper cover body 321 and the lower cover body 322, a protective membrane 324 is disposed between the upper cover body 321 and the lower cover body 322, the upper cover body 321 and the lower cover body 322 are detachably connected, and a puncture assembly 330 for puncturing the protective membrane 324 is disposed in the upper cover body 321, and in use, the protective membrane 324 can be punctured by the puncture assembly 330.

In order to provide the valve with better tightness, it is further preferable that the bottom of the valve core 20 is provided with a first sealing ring 210, the bottom of the valve core 20 is further provided with a fixing bolt 220, the fixing bolt 220 is provided with a stainless steel pipe 230 for communicating the air inlet cavity 110 with the air inlet channel 200, and the stainless steel pipe 230 is provided with a stainless steel wire 240.

In order to accurately insert the sealing stop rod 352 into the gas flow passage 355 of the valve core 20, so that the piston 354 on the sealing stop rod 352 blocks the gas flow passage 355, it is further preferable that a first spring 360 is disposed between the valve core 20 and the cover 300, and the first spring 360 is sleeved on the outer side of the sealing stop rod 352, and the first spring 360 plays a guiding and limiting role.

In order to puncture the protective membrane 324 more conveniently, it is further preferable that the puncture assembly 330 comprises two mounting blocks 331 disposed at the bottom of the gas leakage flow channel 323 in the upper cover 321, a connecting sliding column 332 is disposed on the mounting blocks 331, a pressing plate 333 is disposed on the top of the connecting sliding column 332, the connecting sliding column 332 penetrates through the pressing plate 333 and is slidably connected with the pressing plate 333, a second spring 334 is sleeved outside the connecting sliding column 332, one end of the second spring 334 is connected with the mounting blocks 331, the other end is connected with the pressing plate 333, and a puncture block 335 for puncturing the protective membrane 324 is disposed at the bottom of the pressing plate 333.

In use, the puncture block 335 is moved downward to puncture the protective membrane 324 by pressing the pressing plate 333, and the second spring 334 can rebound the pressing plate 333 to allow the gas to be discharged more smoothly.

In order to more conveniently detect the air pressure and the filling gas in the fire extinguishing container bottle, it is further preferable that a filling interface 40 for filling the fire extinguishing gas is further arranged on the valve body 10, the filling interface 40 is communicated with an air inlet cavity 110 in the valve body 10, a pressure gauge interface 41 is arranged on the filling interface 40, the pressure gauge interface 41 is connected with a pressure gauge 42, a blocking plug 43 is detachably arranged on the filling interface 40, the pressure gauge 42 is in threaded connection with the pressure gauge interface 41, and a second sealing ring 44 is arranged at the joint; the plug 43 is screwed with the filling port 40, and a third sealing ring 45 is arranged at the joint.

When the fire extinguishing container bottle is used, the pressure gauge 42 can be used for detecting the air pressure in the fire extinguishing container bottle, the plug 43 is taken out during filling, the gas filling of the fire extinguishing container bottle can be completed through filling equipment, and the second sealing ring 44 and the third sealing ring 45 are arranged, so that the sealing performance of the valve is better.

In order to reduce the possibility of explosion of the fire extinguishing container when a fire disaster occurs, it is further preferred that a pressure relief interface 50 is further provided on the valve body 10, the pressure relief interface 50 is connected with a safety relief device 500 that is communicated with the air inlet cavity 110 inside the valve body 10, the safety relief device 500 includes a safety screw plug 510 and a safety press ring assembly 520, a pressure relief runner 530 is opened inside the safety screw plug 510, a pressure relief hole 540 that is communicated with the pressure relief runner 530 is opened on the safety screw plug 510, a safety press ring assembly 520 is provided on one side of the safety screw plug 510 inserted into the pressure relief interface 50, the safety press ring assembly 520 includes a safety press ring 521 and a safety washer 522, one side of the safety press ring 521 is connected with the safety screw plug 510, the other side is connected with the safety washer 522, and a pressure relief protection film 523 is provided in the safety press ring 521.

When in use, during fire, the air pressure in the fire extinguishing container bottle rises, and when the air pressure rises to a certain degree, the pressure release protective film 523 breaks, and the air in the fire extinguishing container bottle is discharged by the pressure release runner 530, so that the possibility of explosion of the fire extinguishing container during fire is reduced.

For better connection of the valve with the fire extinguishing container, it is further preferable that the lower end of the valve body 10 is provided with a thread 60 for connecting with the fire extinguishing container, the bottom of the valve body 10 is further provided with a siphon connection 61, the siphon connection 61 is disposed in the air inlet cavity 110 and is communicated with the air inlet cavity 110, and the siphon connection 61 can be connected with a siphon; the lower end of the valve body 10 is also provided with a fourth sealing ring 62 for being matched with the valve body 10 to be in sealing connection with the fire extinguishing container.

In use, the siphon pipe is connected to the siphon pipe connection part 61, and then the valve body 10 is connected to the fire extinguishing container through threads, so that the installation of the fire extinguishing container and the valve can be completed, and the fourth sealing ring 62 can enable the connection of the valve body 10 and the fire extinguishing container to have better tightness.

In order to provide a better sealing performance for the valve, it is further preferable that a fifth sealing ring 63 for sealing connection between the diaphragm cover 320 and the valve body 10 is provided at a contact portion between the diaphragm cover 320 and the valve body 10.

When in use, the fifth sealing ring 63 can ensure better sealing performance between the diaphragm cover 320 and the valve body 10, thereby being beneficial to reducing leakage of fire extinguishing gas.

In order to better detect the tightness of the valve, it is further preferable in the above embodiment that a cap 70 is further provided at one end of the gas outlet cavity 130 of the valve body 10, the cap 70 is in threaded connection with the valve body 10, a sand hole 71 for detecting the tightness of the valve is provided on the cap 70, and an annular sealing ring 72 is provided at the joint of the cap 70 and the valve body 10.

In use, the valve can be checked for sealing by the sand holes 71, which is advantageous for reducing the leakage of fire suppressing gas.

The working principle of the utility model is as follows:

the pressure balance between the exhaust cavity 120 and the air inlet cavity 110 inside the valve body 10 of the valve after filling is realized, and because the volume of the exhaust cavity 120 is larger than that of the air inlet cavity 110, a pressure difference is formed, and the pressure of the exhaust cavity 120 is larger than that of the air inlet cavity 110, so that the limiting block 250 on the side surface of the valve core 20 is tightly attached to the valve body 10, and the valve is sealed. When in use, through puncturing the diaphragm cover 320, the gas in the exhaust cavity 120 in the valve body 10 is discharged through the gas flow passage 355 in the sealing stop lever 352, the gas inlet 353 on the sealing stop lever 352 and the matched discharge of the communicating air passage 340, so that the exhaust cavity 120 is instantaneously depressurized, and the pressure in the gas inlet cavity 110 is unchanged at the moment, so that the valve core 20 moves upwards, and the valve is opened. At the same time, the valve core 20 is moved up so that the sealing bar 352 is inserted into the gas flow passage 355 of the valve core 20, and the piston 354 on the sealing bar 352 blocks the gas flow passage 355 so that the gas cannot flow out of the gas flow passage 355.

The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. The utility model provides a gas fire extinguishing container valve, includes valve body (10), valve core (20) and valve gap subassembly (30), valve core (20) set up in valve body (10), the internal portion of valve body (10) is intake chamber (110) of bottom, exhaust chamber (120) and the side of top go out air chamber (130), exhaust chamber (120) volume is greater than intake chamber (110) volume, valve gap subassembly (30) set up in valve body (10) top, characterized in that, valve gap subassembly (30) include lid (300), it has diaphragm lid mounting groove (310) and intercommunication air flue (340) to open on lid (300), install diaphragm lid (320) in diaphragm lid mounting groove (310), intercommunication air flue (340) are used for with exhaust chamber (120) with diaphragm lid mounting groove (310) are equipped with seal stop lever subassembly (350) bottom lid (300);

the sealing stop lever assembly (350) comprises a sealing stop lever mounting groove (351) and a sealing stop lever (352), the sealing stop lever mounting groove (351) is arranged at the bottom of the cover body (300), a gas flow passage (355) and a gas inlet hole (353) communicated with the gas flow passage (355) are formed in the sealing stop lever (352), one end of the sealing stop lever (352) is mounted in the sealing stop lever mounting groove (351), the other end of the sealing stop lever is connected with a piston (354), and the gas flow passage (355) is communicated with the communication air passage (340);

the valve core (20) is provided with an air inlet channel (200) used for communicating the exhaust cavity (120) and the air inlet cavity, and the side surface of the lower end of the valve core (20) is provided with a limiting block (250).

2. The gas fire-extinguishing container valve according to claim 1, wherein the membrane cover (320) comprises an upper cover body (321) and a lower cover body (322), gas leakage flow passages (323) are formed in the upper cover body (321) and the lower cover body (322), a protective membrane (324) is arranged between the upper cover body (321) and the lower cover body (322), the upper cover body (321) and the lower cover body (322) are detachably connected, and a puncture assembly (330) for puncturing the protective membrane (324) is arranged in the upper cover body (321).

3. A gas fire-extinguishing container valve according to claim 1, characterized in that a first sealing ring (210) is arranged at the bottom of the valve core (20), a fixing bolt (220) is further arranged at the bottom of the valve core (20), a stainless steel tube (230) for communicating the gas inlet cavity (110) with the gas inlet runner (200) is arranged on the fixing bolt (220), and a stainless steel wire (240) is arranged in the stainless steel tube (230).

4. A gas fire extinguishing container valve according to claim 1, characterized in that a first spring (360) is arranged between the valve core (20) and the cover body (300), and the first spring (360) is sleeved outside the sealing stop lever (352).

5. A gas fire extinguishing container valve according to claim 2, wherein the puncture assembly (330) comprises two mounting blocks (331) arranged at the bottom of the gas leakage flow channel (323) in the upper cover body (321), a connecting sliding column (332) is arranged on the mounting blocks (331), a pressing plate (333) is arranged at the top of the connecting sliding column (332), the connecting sliding column (332) penetrates through the pressing plate (333) and is in sliding connection with the pressing plate (333), a second spring (334) is sleeved outside the connecting sliding column (332), one end of the second spring (334) is connected with the mounting blocks (331), the other end of the second spring (334) is connected with the pressing plate (333), and a puncture block (335) for puncturing the protection membrane (324) is arranged at the bottom of the pressing plate (333).

6. A gas fire extinguishing container valve according to claim 2 or 5, characterized in that the valve body (10) is further provided with a filling port (40) for filling fire extinguishing gas, the filling port (40) is communicated with an air inlet cavity (110) inside the valve body (10), the filling port (40) is provided with a pressure gauge port (41), the pressure gauge port (41) is connected with a pressure gauge (42), the joint is provided with a second sealing ring (44), the filling port (40) is detachably provided with a blocking plug (43), the blocking plug (43) is in threaded connection with the filling port (40), and the joint is provided with a third sealing ring (45).

7. The gas fire extinguishing container valve according to claim 2 or 5, wherein the valve body (10) is further provided with a pressure relief interface (50), the pressure relief interface (50) is connected with a safety relief device (500) communicated with an air inlet cavity (110) inside the valve body (10), the safety relief device (500) comprises a safety screw plug (510) and a safety press ring assembly (520), a pressure relief runner (530) is arranged inside the safety screw plug (510), the safety screw plug (510) is provided with a pressure relief hole (540) communicated with the pressure relief runner (530), the safety screw plug (510) is inserted into one side of the pressure relief interface (50) to be provided with the safety press ring assembly (520), the safety press ring assembly (520) comprises a safety press ring (521) and a safety washer (522), one side of the safety press ring (521) is connected with the safety screw plug (510), the other side of the safety press ring (521) is connected with the safety washer (522), and a pressure relief protection film (523) is arranged inside the safety press ring (521).

8. A gas fire extinguishing container valve according to claim 1, characterized in that the lower end of the valve body (10) is provided with a screw thread (60) for connecting a fire extinguishing container, the bottom of the valve body (10) is also provided with a siphon connection (61), the siphon connection (61) is arranged in the gas inlet cavity (110) and is communicated with the gas inlet cavity (110), and the siphon connection (61) can be connected with a siphon.

9. A gas fire extinguishing container valve according to claim 7, characterized in that the lower end of the valve body (10) is further provided with a fourth sealing ring (62) for sealing connection of the valve body (10) with a fire extinguishing container.

10. A gas fire extinguishing container valve according to claim 1, characterized in that a fifth sealing ring (63) for sealing connection of the diaphragm cover (320) with the valve body (10) is provided at the contact of the diaphragm cover (320) with the valve body (10).