Container valve of fire extinguisher and non-pressure-storage type fire extinguisher thereof

Abstract

The invention relates to fire extinguishing equipment, and discloses a container valve of a fire extinguisher and a non-pressure-storage type fire extinguisher thereof, the container valve comprises a container valve body and a valve cover, a membrane is installed between the valve cover and the container valve body, an upper cavity, a lower cavity and a sealing channel are arranged in the container valve body, and the upper cavity is communicated with the lower cavity through the sealing channel; a diaphragm base is installed at the port of the upper cavity, one end of the diaphragm base abuts against the diaphragm and is in sealed connection with the diaphragm, and the other end of the diaphragm base extends into the upper cavity and is in sealed connection with the inner wall of the upper cavity. A bayonet used for puncturing the diaphragm is installed in the upper cavity, a bayonet base is installed at the bottom of the bayonet, and a first spring arranged on the bayonet in a sleeving mode is arranged between the bayonet base and the diaphragm base. When the container valve is not started, the bayonet base and the sealing channel are sealed. According to the container valve, the bayonet is installed in the container valve, high-pressure gas generated by the gas generating device firstly pushes the bayonet, then the bayonet punctures the membrane, and therefore the container valve is started. And the membrane is punctured by the bayonet, so that the starting stability is improved.

Description

Technical Field

[0001] The invention relates to fire extinguishing equipment, in particular to a container valve of a fire extinguisher and a non-pressure storage type fire extinguisher. Background Art

[0002] Traditional clean gas fire extinguishing devices are mostly pressure storage structures, which store nitrogen inside to drive the fire extinguishing agent to spray. However, in actual applications, the pressure storage structure has several disadvantages: 1) The pressure requirement for the storage tank is high, and the pressure is kept for a long time, and the container needs to be inspected every 3 years, which is costly; 2) The pressure storage structure has the risk of slow leakage of pressure from the container valve, and there is a risk of failure over time; 3) There are risks in the transportation of high-pressure storage tanks, especially when going overseas, which requires a hazard certificate and high transportation costs; 4) The pressure of the pressure storage device fluctuates greatly with temperature changes, and regular manual inspections are required to check for leaks, which has high operation and maintenance costs;

[0003] At present, there are also some non-pressure storage fire-fighting device structures designed on the market. Their main working principle is to instantly generate a large amount of gas through the gas-generating structure, which then breaks the diaphragm for spraying. For example, the publication number is 103301590A. In actual use, the material of the bell diaphragm itself has high requirements for the pressure required for gas production, and there is a risk of startup failure. At the same time, the fire-fighting device also monitors the temperature to determine whether there is gunpowder triggering and whether the fire-fighting is started. This monitoring method has monitoring loopholes: 1) During daily operation and maintenance, the device is in a room temperature environment and cannot monitor whether there is a chronic leakage of the fire-fighting agent; 2) The alarm after the gas-generating device is started does not mean that the fire-fighting device has started to spray the fire-fighting agent. In response to the above problems, this valve has redesigned a non-pressure storage fire-fighting device. Summary of the invention

[0004] The present invention aims at the disadvantages of the prior art and provides a container valve of a fire extinguisher and a non-pressure storage type fire extinguisher thereof.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] The container valve of the fire extinguisher comprises a container valve body and a valve cover installed on the container valve body, a diaphragm is installed between the valve cover and the container valve body, an upper cavity, a lower cavity and a sealing channel are arranged in the valve body, and the upper cavity is connected with the lower cavity through the sealing channel;

[0007] A diaphragm base is installed at the port of the upper cavity, one end of the diaphragm base is against the diaphragm and is sealed with it, and the other end of the diaphragm base extends into the upper cavity and is sealed with the inner wall of the upper cavity;

[0008] A bayonet for piercing the diaphragm is installed in the upper cavity, a bayonet base is installed at the bottom of the bayonet, and a first spring sleeved on the bayonet is arranged between the bayonet base and the diaphragm base; when the container valve is not started, the bayonet base is sealed with the sealing channel.

[0009] There are roughly two ways to start traditional fire extinguishing agent container valves. One is to use an electromagnet or a micromotor as a starting source. After starting, a differential pressure is formed in the container valve, and the valve core in the container valve is started to release the fire extinguishing agent. The other is to install a pilot valve and use the bayonet on the pilot valve to pierce the diaphragm on the container valve. After starting, a differential pressure is formed in the container valve, and the valve core in the container valve is started to release the fire extinguishing agent.

[0010] As described in the background art, the non-pressure storage type fire extinguisher is activated by rupturing the diaphragm with high pressure to activate the container valve.

[0011] The container valve has a bayonet installed therein, and the high-pressure gas generated by the gas generating device first pushes the bayonet, and then the bayonet pierces the diaphragm, thereby starting the container valve. The bayonet pierces the diaphragm, which improves the stability of the start-up.

[0012] Preferably, a through-type step hole is provided in the diaphragm base, and at least one connecting hole is provided on the side wall of the lower end of the diaphragm base, and the connecting hole is connected to the step hole; a bayonet channel for fire extinguishing is provided on the bayonet, and the step hole is connected to the bayonet channel.

[0013] After the bayonet pierces the diaphragm, the fire extinguishing agent enters the step hole from the connecting hole. The fire extinguishing agent can not only be released directly from the pierced diaphragm, but also be output from the bayonet channel of the bayonet, thereby ensuring the output amount of the fire extinguishing agent.

[0014] Preferably, the upper end portion of the diaphragm base extends outward to form a supporting portion, the outer diameter of the supporting portion is larger than the inner diameter of the upper cavity, the supporting portion is placed on the end surface at the port of the upper cavity, the upper end surface of the supporting portion is provided with an annular first sealing groove, a diaphragm sealing ring is installed in the first sealing groove, and the diaphragm is placed on the diaphragm sealing ring.

[0015] The diaphragm base is sealed with the diaphragm through a diaphragm sealing ring. When not started, the sealing between the diaphragm base and the diaphragm is good and not easy to leak.

[0016] Preferably, a diaphragm gasket is installed in the valve cover, the diaphragm is arranged between the diaphragm gasket and the diaphragm base, and the diaphragm gasket is provided with a release hole for the bayonet to pass through after piercing the diaphragm.

[0017] The end face of the inner hole of the valve cover is not easy to process, and the roughness value of the end face cannot be guaranteed. The diaphragm gasket is an independent component, which is convenient for processing its surface roughness value, so as to ensure that the diaphragm can be placed flat on the diaphragm gasket and ensure the sealing between the diaphragm sealing ring and the diaphragm.

[0018] Preferably, a second sealing groove is provided on the outer wall of the lower end of the bayonet base, a channel sealing ring is installed in the second sealing groove, the channel sealing ring is provided with a circle of annular groove with an opening facing upward, a gap is provided between the upper end of the channel sealing ring and the top wall of the second sealing groove, and the upper cavity is connected with the groove through the gap.

[0019] The channel sealing ring can not only be firmly fastened to the bayonet base, but also improve the sealing performance between the channel sealing ring and the sealing channel. When there is air pressure in the groove, the air pressure will act on the two side walls of the groove, and the side wall on one side will be pressed tightly against the bayonet base, and the side wall on the other side will be pressed tightly against the sealing channel wall.

[0020] Preferably, a signal feedback device is installed on the side wall of the container valve body, the signal feedback device includes a signal feedback component and a signal connector installed on the container valve body, a push rod gasket and a push rod valve body are installed in the signal connector, a valve push rod is installed in the push rod valve body, and the signal feedback component is installed on the signal connector and is pressed against the valve push rod with the push rod gasket.

[0021] The signal feedback device of the container valve can monitor whether there is leakage of the fire extinguishing agent at all times, and can also monitor whether the gas generating device is started.

[0022] Preferably, the signal feedback assembly includes a signal switch base, in which a contact switch, a piston rod and a second spring are installed, one end of the second spring abuts against the piston rod, and the other end abuts against the signal switch base, and the piston rod can move left and right in the channel of the signal switch base. The piston rod will touch the contact switch under the action of air pressure, thereby activating the signal feedback device to monitor whether the fire extinguishing agent in the fire extinguishing agent bottle is leaking, whether the gas generating device is activated, etc.

[0023] Preferably, a top cover portion that can be sealed on the push rod valve body is provided at one end of the valve push rod, and a convex portion is provided at the other end, and a pagoda-shaped third spring is installed between the convex portion and the push rod valve body. The top cover portion plays a limiting role, and its axial limit is at the inner end of the push rod valve body. The convex portion of the valve push rod is limited at the other end of the push rod valve body by the third spring. When the push rod gasket does not push the valve push rod open, the valve push rod moves to the left under the action of the third spring, so that the top cover portion is sealed at the end of the push rod valve body.

[0024] Preferably, a through-type air hole is provided on the push rod gasket, and when the valve push rod is pushed open by the push rod gasket, the upper cavity is connected with the channel of the signal switch base through the air hole. The air pressure enters from the gap between the valve push rod and the push rod valve body, then enters the signal switch base through the air hole, and finally acts on the end face of the contact switch.

[0025] Preferably, a filling interface is provided on the other side of the container valve body, a filling connector is installed on the filling interface, a first channel is provided on the side wall of the filling interface and passes through the bottom of the container valve body, a second channel connected to the upper cavity is provided at the bottom of the filling interface, and the diameter of the second channel is smaller than the diameter of the first channel.

[0026] The filling joint is used to fill the fire extinguishing agent. When the fire extinguishing agent is filled in the fire extinguishing agent bottle, the air pressure in the bottle enters the upper chamber through the first channel and the second channel, thereby balancing the pressure in the upper chamber and the lower chamber, and the bayonet base will be sealed on the sealing channel under the action of the first spring.

[0027] Preferably, the filling connector includes a filling valve body and a valve core, the valve core is installed on the filling valve body, the valve core includes a core body and a core rod, the inner end of the core rod is sealed on the air channel of the core body through a sealing gasket, and the outer end of the core rod is connected to the core body through a fifth spring, and the fifth spring is a pagoda-shaped spring.

[0028] The non-pressure storage fire extinguisher comprises a fire extinguishing agent bottle body, a gas generating device is installed at one end of the fire extinguishing agent bottle body, a container valve of the fire extinguishing agent is installed at the other end of the fire extinguishing agent bottle body, and a siphon tube extending into the fire extinguishing agent bottle body is installed on the container valve.

[0029] Preferably, the gas producing device includes a gas producing base, which is sealed and installed on the fire extinguishing agent bottle body. A gas producing plug and a gas producing pipe fitting are respectively installed at both ends of the gas producing base. The gas producing pipe fitting is arranged in the fire extinguishing agent bottle body. Gunpowder is installed in the gas producing pipe fitting. A gas producing valve core and a nozzle are installed at the other end of the gas producing pipe fitting. The nozzle is fixed on the end of the gas producing pipe fitting. The gas producing valve core blocks the channel of the gas producing pipe fitting. A fourth spring is installed between the gas producing valve core and the nozzle, and a spray hole with an opening facing upward is provided on the nozzle.

[0030] The gas generating device is used to generate high-pressure gas, which drives the bayonet to move and pierce the diaphragm, activates the container valve, and the fire extinguishing agent is transported to the fire fighting pipeline through the siphon and the container valve. The gas generating device is equipped with a nozzle, which is used to limit the axial movement of the gas generating core on the one hand, and to guide the injection direction of the high-pressure gas on the other hand.

[0031] Preferably, the fire extinguisher bottle is a horizontal bottle, and the siphon includes a tube body, a hose and a counterweight joint. One end of the tube body is fixed to the container valve body, the other end of the tube body is fixedly connected to the hose, and the other end of the hose is fixedly connected to the counterweight joint. The counterweight joint is located at the bottom of the fire extinguisher bottle.

[0032] Traditional siphons are basically made of a straight metal tube. Since the fire extinguisher bottle is a horizontal bottle, in order to make the lower end of the siphon always at the bottom of the fire extinguisher bottle, the conventional design is to bend the siphon and extend it into the fire extinguisher bottle. The siphon is equipped with a hose at the end of the tube, and a weight joint is installed at the end of the hose. The weight joint sinks to the bottom of the fire extinguisher bottle under the action of gravity. This horizontal fire extinguisher is easy to operate during installation, and the operator will not affect the position of the suction port at the lower end of the siphon even if he accidentally rotates the fire extinguisher bottle.

[0033] The present invention has significant technical effects due to the adoption of the above technical solution:

[0034] (1) The container valve has a bayonet installed therein. The high-pressure gas generated by the gas generating device first pushes the bayonet, and then the bayonet pierces the diaphragm, thereby starting the container valve. The bayonet pierces the diaphragm, which improves the stability of the start-up.

[0035] (2) The gas generating device is equipped with a nozzle, which is used to limit the axial movement of the gas generating core on the one hand, and to guide the injection direction of the high-pressure gas on the other hand, so that the fire extinguishing agent can be quickly pressed into the siphon.

[0036] (3) The siphon tube is equipped with a hose at the end of the tube body, and a weight joint is installed at the end of the hose. The weight joint sinks to the bottom of the fire extinguisher bottle under the action of gravity. This horizontal fire extinguisher is easy to operate during installation, and the operator will not affect the position of the suction port at the lower end of the siphon tube even if he accidentally rotates the fire extinguisher bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the container valve of the present invention.

[0038] Figure 2 yes Figure 1 Schematic diagram of the structure of the valve body of the medium container.

[0039] Figure 3 It is a schematic diagram of the structure of the bayonet and the bayonet base.

[0040] Figure 4 It is a structural schematic diagram of the diaphragm base.

[0041] Figure 5 yes Figure 1 Schematic diagram of the structure of A.

[0042] Figure 6 It is a structural schematic diagram of a signal feedback device.

[0043] Figure 7 It is a structural diagram of a non-pressure storage type fire extinguisher.

[0044] Figure 8It is a structural schematic diagram of the gas production device.

[0045] The parts indicated by the numbers in the above drawings are as follows:

[0046] 10—container valve body, 101—upper cavity, 102—lower cavity, 103—sealed channel, 104—filling interface, 105—first channel, 106—second channel

[0047] 11—Valve cover

[0048] 12—Diaphragm

[0049] 13—diaphragm base, 131—step hole, 132—connecting hole, 133—support portion, 134—first sealing groove

[0050] 14—Bayonet, 141—Bayonet channel

[0051] 15—bayonet base, 151—second sealing groove

[0052] 16 - First Spring

[0053] 17—Diaphragm seal

[0054] 18—diaphragm gasket, 181—release hole

[0055] 19—channel sealing ring, 191—groove

[0056] 20—Gap

[0057] 21—signal feedback device, 211—signal feedback assembly, 212—signal connector, 213—rod gasket, 214—rod valve body, 215—valve push rod, 216—seal, 2111—signal switch base, 2112—contact switch, 2113—piston rod, 2114—second spring, 2131—air hole, 2151—top cover, 2152—convex portion

[0058] 22—Third spring

[0059] 23 - filling connector, 231 - filling valve body, 232 - valve core, 2321 - core body, 2322 - core rod, 2323 - sealing pad, 2324 - fifth spring

[0060] 24—Fire extinguishing agent bottle

[0061] 25-gas generating device, 251-gas generating base, 252-gas generating plug, 253-gas generating pipe fittings, 254-gunpowder, 255-gas generating valve core, 256-sprinkler, 257-fourth spring, 2561-spray hole

[0062] 26—siphon, 261—tube, 262—hose, 263—weighted joint DETAILED DESCRIPTION

[0063] The following is combined with Figure 1-8 The present invention is further described in detail with examples.

[0064] Example 1

[0065] The container valve of the fire extinguisher comprises a container valve body 10 and a valve cover 11 installed on the container valve body 10, the valve cover 11 is threadedly connected to the container valve body 10, a diaphragm 12 is installed between the valve cover 11 and the container valve body 10, an upper cavity 101, a lower cavity 102 and a sealing channel 103 are arranged in the container valve body 10, and the upper cavity 101 is communicated with the lower cavity 102 through the sealing channel 103;

[0066] A diaphragm base 13 is installed at the port of the upper cavity 101, and the diaphragm 12 is placed above the diaphragm base 13. One end of the diaphragm base 13 abuts against the diaphragm 12 and is sealed therewith, and the other end thereof extends into the upper cavity 101 and is sealed therewith to the inner wall of the upper cavity 101.

[0067] A bayonet 14 for piercing the diaphragm 12 is installed in the upper cavity 101. A bayonet base 15 is installed at the bottom of the bayonet 14. The bayonet 14 is installed on the bayonet base 15 through interference fit. The bayonet base 15 is an irregular truncated cone, and the arc guide is ensured to meet the demand for the output of the fire extinguishing agent flow. A first spring 16 is provided between the bayonet base 15 and the diaphragm base 13, which is sleeved on the bayonet 14. When the container valve is not started, the bayonet base 15 is sealed with the sealing channel 103. When the container valve is started, the air pressure pushes the bayonet base 15, the bayonet 14 pierces the diaphragm 12, the bayonet base 15 is separated from the sealing channel 103, the lower cavity 102 is connected with the upper cavity 101, and the fire extinguishing agent is released.

[0068] A through-type step hole 131 is provided in the diaphragm base 13, and at least one communication hole 132 is provided on the side wall of the lower end of the diaphragm base 13, and the communication hole 132 is connected to the step hole 131. In this embodiment, the number of the communication holes 132 is eight, and the eight communication holes 132 are evenly distributed around the lower end of the diaphragm base 13, thereby securing the passage of the fire extinguishing agent. The bayonet 14 is provided with a bayonet passage 141 for the passage of fire extinguishing, that is, the bayonet 14 is a hollow structure, the step hole 131 is connected to the bayonet passage 141, and a notch connected to the bayonet passage 141 is provided on the side of the bayonet 14, so that while the diaphragm 14 is pierced, the fire extinguishing agent enters the bayonet passage 141 from the side notch, and is then released into the external pipeline.

[0069] The upper end of the diaphragm base 13 extends outward to form a support portion 133. The outer diameter of the support portion 133 is greater than the inner diameter of the upper cavity 101. The support portion 133 is placed on the end surface at the port of the upper cavity 101. The upper end surface of the support portion 133 is provided with an annular first sealing groove 134. A diaphragm sealing ring 17 is installed in the first sealing groove 134. The diaphragm sealing ring 17 is an O-ring made of nitrile rubber. The diaphragm 12 is placed on the diaphragm sealing ring 17.

[0070] A diaphragm gasket 18 is installed in the valve cover 11, and the diaphragm 12 is arranged between the diaphragm gasket 18 and the diaphragm base 13. The diaphragm gasket 18 is provided with a release hole 181 for the bayonet to pierce the diaphragm 12 and pass through. When the valve cover 11 is tightened, the valve cover will press the diaphragm 12 against the diaphragm sealing ring 17 with the diaphragm gasket 18 to ensure the sealing of the container valve outlet.

[0071] A second sealing groove 151 is provided on the outer wall of the lower end of the bayonet base 15, and a channel sealing ring 19 is installed in the second sealing groove 151. The channel sealing ring 19 is provided with a circle of annular grooves 191 with an opening facing upward, and a gap 20 is provided between the upper end of the channel sealing ring 19 and the top wall of the second sealing groove 151. The upper cavity 101 is connected with the groove 191 through the gap 20. The channel sealing ring 19 can not only be firmly fastened to the bayonet base 15, but also improve the sealing between the channel sealing ring 19 and the sealing channel 103. When there is air pressure in the groove 191, the air pressure will act on the two side walls of the groove 191, and the side wall on one side will be pressed against the bayonet base 15, and the side wall on the other side will be pressed against the inner wall of the sealing channel 103.

[0072] A signal feedback device 21 is installed on the side wall of the container valve body 10. The signal feedback device 21 includes a signal feedback assembly 211 and a signal connector 212 installed on the container valve body 10. A push rod gasket 213 and a push rod valve body 214 are installed in the signal connector 212. A seal 216 is provided between the push rod valve body 214 and the signal connector 212, and radial sealing is achieved through the seal 216. A valve push rod 215 is installed in the push rod valve body 214. The signal feedback assembly 211 is installed on the signal connector 212 and pushes the push rod gasket 213 on the valve push rod 215, thereby opening the passage between the valve push rod 215 and the push rod valve body 214.

[0073] The signal feedback component 211 includes a signal switch base 2111, in which a contact switch 2112, a piston rod 2113 and a second spring 2114 are installed. The signal switch base 2111 is sealed and connected to the signal connector 212 via a sealing ring, and the signal switch base 2111 is threadedly connected to the signal connector 212. One end of the second spring 2114 abuts against the piston rod 2113, and the other end thereof abuts against the signal switch base 2111. The piston rod 2113 can move left and right in the channel of the signal switch base 2111. The piston rod 2113 will move leftward under the action of air pressure, thereby triggering the contact switch 2112, and the contact switch action is monitored externally. After the fire extinguishing agent in the fire extinguishing agent bottle 24 is released due to the start of the fire, the air pressure in the fire extinguishing agent bottle 24 is lost, the piston rod 2113 moves to the right under the action of the second spring 2114, the end of the piston rod 2113 is separated from the contact switch 2112, and the signal feedback state disappears, thereby being able to monitor whether the fire extinguishing agent bottle 24 is leaking or whether the fire extinguisher is spraying.

[0074] A top cover portion 2151 which can be sealed on the push rod valve body 214 is provided at one end of the valve push rod 215, and a convex portion 2152 is provided at the other end. A pagoda-shaped third spring 22 is installed between the convex portion 2152 and the push rod valve body 214 to prevent the valve push rod 215 from detaching from the push rod valve body 214 under the action of the push rod gasket 213. At the same time, when there is no action of the push rod gasket 213, it can ensure that the valve push rod 215 and the sealing member 216 can achieve end face sealing.

[0075] A through-type air hole 2131 is provided on the push rod gasket 213 . When the valve push rod 215 is pushed open by the push rod gasket 213 , the upper cavity 101 is communicated with the channel of the signal switch base 2111 through the air hole 2131 .

[0076] A filling interface 104 is provided on the other side of the container valve body 10, and a filling connector 23 is installed on the filling interface 104. The fire extinguishing agent is poured into the container valve from the filling connector 23, and then flows into the fire extinguishing agent bottle 24. The side wall of the filling interface 104 is provided with a first channel 105 that passes through the bottom of the container valve body 10. When the container valve is installed on the fire extinguishing agent bottle 24, the first channel 105 will be connected to the inner cavity of the fire extinguishing agent bottle 24. A second channel 106 that is connected to the upper cavity 101 is provided at the bottom of the filling interface 104, and the diameter of the second channel 106 is smaller than the diameter of the first channel 105. When the fire extinguishing agent is filled, the upper cavity 101 is balanced in air pressure with the lower cavity 102 through the second channel 106 and the first channel 105, and the bayonet base 15 is sealed on the sealing cavity 103 under the action of the first spring 16.

[0077] The filling connector 23 includes a filling valve body 231 and a valve core 232. The valve core 232 is mounted on the filling valve body 231. The valve core 232 includes a core body 2321 and a core rod 2322. The inner end of the core rod 2322 is sealed on the air passage of the core body 2321 through a sealing gasket 2323. The outer end of the core rod 2322 is connected to the core body 2321 through a fifth spring 2324. The fifth spring 2324 is a pagoda-shaped spring. When the core rod 2322 is opened, the inflation passage is opened. When the core rod 2322 is not pushed open, the inner end of the core rod 2322 is sealed on the air passage of the core body 2321 through a sealing gasket 2323.

[0078] Example 2

[0079] The non-pressure storage type fire extinguisher comprises a fire extinguishing agent bottle 24, a gas generating device 25 is installed at one end of the fire extinguishing agent bottle 24, and a container valve of the fire extinguishing agent in Example 1 is installed at the other end of the fire extinguishing agent bottle 24, and a siphon 26 is installed on the container valve and extends into the fire extinguishing agent bottle 24. In the non-pressure storage type fire extinguisher, the fire extinguishing agent bottle 24 is not filled with external pressure during daily operation, and only a little evaporation pressure of the fire extinguishing agent itself is generated. When starting, the gas generating device 25 is powered on to generate a large amount of gas to start the fire fighting.

[0080] The gas generating device 25 comprises a gas generating base 251, which is sealed and mounted on the fire extinguishing agent bottle 24 through a sealing ring, and the gas generating base 251 is threadedly connected to the fire extinguishing agent bottle 24. A gas generating plug 252 and a gas generating pipe 253 are respectively mounted at both ends of the gas generating base 251, the gas generating pipe 253 is arranged in the fire extinguishing agent bottle 24, and gunpowder 254 is installed in the gas generating pipe 253, and the gas generating plug 252 is used to ignite the gunpowder 254 in the gas generating pipe 253; a gas generating valve core 255 and a nozzle 256 are mounted at the other end of the gas generating pipe 253, the nozzle 256 is threadedly fastened to the end of the gas generating pipe 253, the gas generating valve core 255 blocks the passage of the gas generating pipe 253, a fourth spring 257 is mounted between the gas generating valve core 255 and the nozzle 256, and the nozzle 256 is provided with a spray hole 2561 with an opening facing upward. When the gas-producing plug 252 is connected to an external power source, the gunpowder 254 produces a chemical reaction, instantly generating high-pressure gas and pushing open the gas-producing valve core 255. Then a large amount of gas passes through the channel between the gas-producing valve core 255 and the inner wall of the gas-producing pipe 253, and then enters the upper layer of the fire-extinguishing agent bottle 24 through the spray hole 2561 on the nozzle 256, and then gradually pushes the fire-extinguishing agent out through the siphon 26.

[0081] Example 3

[0082] The features of Example 3 are basically the same as those of Example 1, except that the fire extinguishing agent bottle 24 is a horizontal bottle, and the siphon 26 includes a tube 261, a hose 262, and a weight joint 263. One end of the tube 261 is fixed on the container valve body 10, and the other end of the tube 261 is fixedly connected to the hose 262, and the other end of the hose 262 is fixedly connected to the weight joint 263, and the weight joint 263 is located at the bottom of the fire extinguishing agent bottle 24. Conventional siphons are basically made of a straight metal tube. Since the fire extinguishing agent bottle 24 is a horizontal bottle, in order to make the lower end of the siphon 26 always at the bottom of the fire extinguishing agent bottle 24, the conventional design is to bend the siphon and extend it into the fire extinguishing agent bottle. The siphon 26 is equipped with a hose 262 at the end of the tube, and a weight joint 263 is installed at the end of the hose 262. The weight joint 263 sinks to the bottom of the fire extinguishing agent bottle 24 under the action of gravity. This horizontal fire extinguisher is easy to operate during installation, and the position of the suction port at the lower end of the siphon tube 26 will not be affected even if the operator accidentally rotates the fire extinguishing agent bottle 24 .

Claims

1. A container valve for a fire extinguisher, comprising a container valve body (10) and a valve cover (11) mounted on the container valve body (10), wherein a diaphragm (12) is mounted between the valve cover (11) and the container valve body (10), characterized in that: An upper cavity (101), a lower cavity (102) and a sealing channel (103) are provided in the container valve body (10); the upper cavity (101) is communicated with the lower cavity (102) through the sealing channel (103); A diaphragm base (13) is installed at the port of the upper cavity (101); one end of the diaphragm base (13) abuts against the diaphragm (12) and is sealed therewith, and the other end thereof extends into the upper cavity (101) and is sealed therewith to the inner wall of the upper cavity (101); A bayonet (14) for piercing the diaphragm (12) is installed in the upper cavity (101), a bayonet base (15) is installed at the bottom of the bayonet (14), and a first spring (16) sleeved on the bayonet (14) is arranged between the bayonet base (15) and the diaphragm base (13); when the container valve is not started, the bayonet base (15) and the sealing channel (103) are sealed.

2. The container valve of the fire extinguisher according to claim 1, characterized in that: A through-type step hole (131) is provided in the diaphragm base (13), and at least one communicating hole (132) is provided on the side wall of the lower end of the diaphragm base (13), and the communicating hole (132) is communicated with the step hole (131); a bayonet channel (141) for fire extinguishing is provided on the bayonet (14), and the step hole (131) is communicated with the bayonet channel (141).

3. The container valve of the fire extinguisher according to claim 1, characterized in that: The upper end of the diaphragm base (13) extends outward to form a support portion (133); the outer diameter of the support portion (133) is greater than the inner diameter of the upper cavity (101); the support portion (133) is placed on the end surface of the port of the upper cavity (101); the upper end surface of the support portion (133) is provided with an annular first sealing groove (134); a diaphragm sealing ring (17) is installed in the first sealing groove (134); and the diaphragm (12) is placed on the diaphragm sealing ring (17).

4. The container valve of the fire extinguisher according to claim 1, characterized in that: A diaphragm gasket (18) is installed in the valve cover (11), the diaphragm (12) is arranged between the diaphragm gasket (18) and the diaphragm base (13), and the diaphragm gasket (18) is provided with a release hole (181) for the bayonet to pierce the diaphragm (12) and pass through.

5. The container valve of the fire extinguisher according to claim 1, characterized in that: A second sealing groove (151) is provided on the outer wall of the lower end of the bayonet base (15), a channel sealing ring (19) is installed in the second sealing groove (151), a circle of annular grooves (191) with an opening facing upward is provided on the channel sealing ring (19), a gap (20) is provided between the upper end of the channel sealing ring (19) and the top wall of the second sealing groove (151), and the upper cavity (101) is communicated with the groove (191) through the gap (20).

6. The container valve of the fire extinguisher according to claim 1, characterized in that: A signal feedback device (21) is installed on the side wall of the container valve body (10). The signal feedback device (21) comprises a signal feedback component (211) and a signal connector (212) installed on the container valve body (10). A push rod gasket (213) and a push rod valve body (214) are installed in the signal connector (212). A valve push rod (215) is installed in the push rod valve body (214). The signal feedback component (211) is installed on the signal connector (212) and is pressed against the valve push rod (215) with the push rod gasket (213).

7. The container valve of the fire extinguisher according to claim 1, characterized in that: A filling interface (104) is provided on the other side of the container valve body (10), a filling connector (23) is installed on the filling interface (104), a first channel (105) is provided on the side wall of the filling interface (104) and passes through the bottom of the container valve body (10), and a second channel (106) is provided at the bottom of the filling interface (104) and communicates with the upper cavity (101), and the diameter of the second channel (106) is smaller than the diameter of the first channel (105).

8. A non-pressure storage type fire extinguisher, comprising a fire extinguishing agent bottle (24), one end of which is provided with a gas generating device (25), characterized in that: The other end of the fire extinguishing agent bottle (24) is provided with a container valve of the fire extinguisher according to any one of claims 1 to 7, and the container valve is provided with a siphon tube (26) extending into the fire extinguishing agent bottle (24).

9. The non-pressure storage type fire extinguisher according to claim 8, characterized in that: The gas production device (25) comprises a gas production base (251), which is sealed and installed on the fire extinguishing agent bottle (24). A gas production plug (252) and a gas production pipe (253) are installed at both ends of the gas production base (251), respectively. The gas production pipe (253) is arranged in the fire extinguishing agent bottle (24), and gunpowder (254) is installed in the gas production pipe (253). A gas production valve core (255) and a nozzle (256) are installed at the other end of the gas production pipe (253). The nozzle (256) is fixed to the end of the gas production pipe (253), and the gas production valve core (255) is blocked on the channel of the gas production pipe (253). A fourth spring (257) is installed between the gas production valve core (255) and the nozzle (256), and the nozzle (256) is provided with a spray hole (2561) opening upward.

10. The non-pressure storage type fire extinguisher according to claim 8, characterized in that: The fire extinguishing agent bottle (24) is a horizontal bottle. The siphon (26) comprises a tube (261), a hose (262) and a weight joint (263). One end of the tube (261) is fixed on the container valve body (10), the other end of the tube (261) is fixedly connected to the hose (262), the other end of the hose (262) is fixedly connected to the weight joint (263), and the weight joint (263) is located at the bottom of the fire extinguishing agent bottle (24).

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