Fire extinguisher valve device with temperature-responsive function

Abstract

The utility model relates to a fire extinguisher technical field, concretely relates to a fire extinguisher valve device with temperature response function, include: fire extinguisher jar, the fire extinguisher jar inside sealed swing is provided with piston disc, the fire extinguisher jar inside is separated into fire extinguishing storage cavity and water source storage cavity through piston disc, the fire extinguisher jar top assembly has the pressure relief pipe of water source storage cavity and fire extinguishing storage cavity pressure relief discharge, the utility model discloses, when the air pressure of water source storage cavity reduces, tension spring will push piston disc and move upward, when piston disc moves to the position of pressure relief pipe, forcing block contacts pressure relief pipe, and the compression reset spring makes the one -way valve core move, lets the carbon dioxide of fire extinguishing storage cavity discharge into water source storage cavity and finally discharge to outside, can effectively reduce the pressure in the fire extinguisher jar, avoids its in the fire scene because long -time grilling leads to the explosion of excessive pressure, and the surrounding environment and possible close personnel safety are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher technology, specifically to a fire extinguisher valve device with temperature response function. Background Technology

[0002] In the field of fire protection, fire extinguishers are key equipment for initial fire suppression, and their reliability and timeliness of response directly affect the effectiveness of fire control and the safety of people and property. Traditional fire extinguishers usually rely on manual operation for activation, that is, personnel discover the fire after it has started and manually open the valve to release the extinguishing medium.

[0003] However, fire extinguisher canisters typically store high-pressure extinguishing media (such as carbon dioxide or compressed air). At a fire scene, if a fire extinguisher is exposed to high temperatures for an extended period, the pressure inside the canister will increase dramatically with rising temperature, posing a risk of explosion. Traditional fire extinguishers lack automatic pressure relief mechanisms for high-temperature environments, which could release high-pressure media or canister fragments after an explosion, exacerbating the danger at the fire scene.

[0004] Therefore, those skilled in the art have provided a fire extinguisher valve device with temperature response function to solve the problems mentioned in the background art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides:

[0006] A fire extinguisher valve device with temperature response function includes: a fire extinguisher canister; a piston disc is movably and sealingly disposed inside the fire extinguisher canister;

[0007] The interior of the fire extinguisher canister is divided into a fire extinguishing storage chamber and a water storage chamber by a piston disc;

[0008] The top of the fire extinguisher tank is equipped with a pressure relief pipe for relieving pressure in the water storage chamber and the fire extinguishing storage chamber;

[0009] The pressure relief pipe is symmetrically fitted with pressure relief structures that protrude from the outside of the fire extinguisher tank along the middle section;

[0010] The pressure relief structure includes a heat-sensitive glass tube that can withstand rupture at an ambient temperature of ℃.

[0011] Preferably, the pressure relief structure further includes a connecting pipe that is sealed to the pressure relief pipe, and a vertical pipe is sealed at the end of the connecting pipe away from the pressure relief pipe.

[0012] Preferably, a heat-sensing tube is sealed at the top of the vertical tube, and internal threads are provided on the inner sides of both ends of the heat-sensing tube. A heat-sensing side button is spirally sealed on the inner side of the heat-sensing tube through the internal threads. A heat-sensing glass tube is provided between the two sets of heat-sensing side buttons to seal and block the heat-sensing tube.

[0013] The heat-sensing tube has a pressure relief hole that runs vertically through its center, and the inside of the pressure relief hole is sealed and blocked by the heat-sensing glass tube.

[0014] Furthermore, when the external ambient temperature exceeds 68°C, the glycerin mixture inside the thermal glass tube expands, increasing the internal air pressure and causing it to rupture. This allows the connecting pipe in the pressure relief structure to release the air pressure inside the water storage chamber into the atmosphere.

[0015] Preferably, the top of the heat-sensing tube is sealed with a threaded tube, the inner side of the threaded tube is provided with a pressure relief top tube, and the outer wall of the pressure relief top tube is provided with external threads.

[0016] The pressure relief jacking pipe is installed on the threaded pipe via an external threaded spiral seal.

[0017] Preferably, the top of the pressure relief pipe is equipped with an atomizing nozzle that sprays water from the source, and a rotary knob is fixed at the top of the atomizing nozzle.

[0018] When the person picks up the fire extinguisher canister and needs to turn off the water mist, they can manually turn the rotary knob so that the knob spirals down through the external thread to the inside of the threaded tube of the atomizing nozzle.

[0019] Preferably, a tension spring is fitted between the bottom of the piston disc and the inside of the fire extinguisher canister.

[0020] When the air pressure in the water storage chamber inside the fire extinguisher tank decreases, the tension spring extends upward and applies an upward force to the piston disc.

[0021] Preferably, a one-way tube is fixed at the center of the piston disc, and a one-way valve core is movably and sealed inside the one-way tube. A force-applying block is fixed at the top of the one-way valve core, and a return spring is assembled between the force-applying block and the one-way tube.

[0022] When the piston disc moves upward to the position of the pressure relief pipe, the force block on the piston disc will contact the pressure relief pipe, thereby compressing the return spring mounted at the bottom of the force block. This causes the bottom of the one-way valve core to move to the outside of the one-way pipe, allowing the extinguishing gas (carbon dioxide) inside the fire extinguisher canister to be discharged into the water storage chamber, further reducing the pressure inside the fire extinguisher canister and preventing the fire extinguisher canister from being exposed to intense heat for a long time at the fire scene, which could lead to excessive internal pressure and the risk of explosion.

[0023] The fire extinguisher tank is equipped with a valve body on top.

[0024] The technical effects and advantages of this utility model are as follows:

[0025] In this invention, when the air pressure in the water storage chamber decreases, the tension spring pushes the piston disc upward. When the piston disc moves to the pressure relief pipe position, the force block contacts the pressure relief pipe, compressing the reset spring and causing the one-way valve core to move. This allows the carbon dioxide in the fire extinguishing storage chamber to be discharged into the water storage chamber and eventually discharged to the outside. This effectively reduces the pressure inside the fire extinguisher canister, preventing it from exploding due to excessive pressure caused by prolonged exposure to heat at the fire scene, thus ensuring the safety of the surrounding environment and potentially nearby personnel.

[0026] In this invention, the heat-sensitive glass tube in the device can withstand an ambient temperature of 68°C. When the external ambient temperature exceeds this value, the glycerin mixture inside will expand, causing the heat-sensitive glass tube to rupture due to the increased internal air pressure. This feature allows the device to automatically trigger the pressure relief structure in the early stages of a fire without manual operation, promptly releasing the air pressure in the water storage chamber. The water is then atomized and sprayed out through the atomizing nozzle, forming a water mist barrier to isolate the high temperature and cool the fire extinguisher canister, buying time for subsequent personnel to use the device and also delaying the spread of the fire to some extent. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a fire extinguisher valve device with temperature response function provided in this application;

[0028] Figure 2 This is a front structural diagram of a fire extinguisher valve device with temperature response function provided in this application;

[0029] Figure 3 This is a cross-sectional structural schematic diagram of a fire extinguisher valve device with temperature response function provided in this application;

[0030] Figure 4 This is a schematic diagram of the connecting pipe in a fire extinguisher valve device with temperature response function provided in this application;

[0031] Figure 5 This is a schematic diagram of point A in a fire extinguisher valve device with temperature response function provided in this application.

[0032] In the picture:

[0033] 1. Fire extinguisher canister; 2. Piston disc; 3. Pressure relief pipe;

[0034] 4. Pressure relief structure; 401. Connecting pipe; 402. Vertical pipe; 403. Heat-sensing tube; 404. Internal thread; 405. Heat-sensing side button; 406. Pressure relief hole; 407. Heat-sensing glass tube; 408. Threaded pipe; 409. Pressure relief top pipe; 410. External thread; 411. Atomizing nozzle; 412. Rotary knob;

[0035] 5. Tension spring; 6. One-way tube; 7. Force-applying block; 8. One-way valve core; 9. Return spring; 10. Valve body. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The examples of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0037] Example: Please refer to Figures 1-5 This embodiment provides a fire extinguisher valve device with temperature response function, including: a fire extinguisher canister 1; a piston disc 2 is movably and sealed inside the fire extinguisher canister 1; the interior of the fire extinguisher canister 1 is divided into a fire extinguishing storage chamber and a water source storage chamber by the piston disc 2; a pressure relief pipe 3 is installed on the top of the fire extinguisher canister 1 to relieve pressure on the water source storage chamber and the fire extinguishing storage chamber; the pressure relief pipe 3 is symmetrically equipped with pressure relief structures 4 exposed on the outside of the fire extinguisher canister 1 along its middle section; the pressure relief structure 4 includes a structure capable of withstanding rupture at an ambient temperature of 68°C. The thermal sensing glass tube 407; the pressure relief structure 4 also includes a connecting pipe 401 that is sealed to the pressure relief pipe 3, and a vertical pipe 402 is sealed at the end of the connecting pipe 401 away from the pressure relief pipe 3; a thermal sensing tube 403 is sealed at the top of the vertical pipe 402, and internal threads 404 are provided on the inner sides of both ends of the thermal sensing tube 403, and a thermal sensing side button 405 is spirally sealed on the inner side of the thermal sensing tube 403 through the internal threads 404, and a thermal sensing glass tube 407 is provided between the two sets of thermal sensing side buttons 405 to seal and block the thermal sensing tube 403;

[0038] The thermal tube 403 has a pressure relief hole 406 extending vertically through its center, and the pressure relief hole 406 is sealed and blocked by a thermal glass tube 407. When the external ambient temperature exceeds 68°C, the glycerin mixture inside the thermal glass tube 407 expands, increasing the internal air pressure and causing it to rupture. This allows the connecting pipe 401 in the pressure relief structure 4 to connect with the pressure relief pipe 3, releasing the air pressure inside the water storage chamber to the atmosphere. The top of the thermal tube 403 is sealed with a threaded pipe 408, and a pressure relief top pipe 409 is provided inside the threaded pipe 408. The outer wall of the pressure relief top pipe 409 is provided with external threads 410.

[0039] The pressure relief jacking pipe 409 is spirally sealed on the threaded pipe 408 via an external thread 410; the top of the pressure relief jacking pipe 409 is equipped with an atomizing nozzle 411 for spraying water, and a rotating knob 412 is fixed at the top of the atomizing nozzle 411; when the personnel pick up the fire extinguisher canister 1 and need to turn off the sprayed water mist, they can manually rotate the rotating knob 412, causing the rotating knob 412 to spirally descend and move the atomizing nozzle 411 to the inside of the threaded pipe 408 via the external thread 410; a tension spring 5 is installed between the bottom of the piston disc 2 and the inside of the fire extinguisher canister 1; when the air pressure in the water storage chamber inside the fire extinguisher canister 1 decreases, the tension spring 5 extends upward and applies an upward force to the piston disc 2;

[0040] A one-way pipe 6 is fixed at the center of the piston disc 2, and a one-way valve core 8 is movably and sealed inside the one-way pipe 6. A force-applying block 7 is fixed at the top of the one-way valve core 8, and a return spring 9 is assembled between the force-applying block 7 and the one-way pipe 6. When the piston disc 2 moves upward to the position of the pressure relief pipe 3, the force-applying block 7 on the piston disc 2 will contact the pressure relief pipe 3, thereby compressing the return spring 9 assembled at the bottom of the force-applying block 7. This moves the bottom of the one-way valve core 8 to the outside of the one-way pipe 6, allowing the extinguishing gas (carbon dioxide) inside the fire extinguisher canister 1 to be discharged into the water storage chamber, further reducing the pressure inside the fire extinguisher canister 1 and preventing the fire extinguisher canister 1 from being exposed to intense heat for a long time at the fire scene, which could lead to excessive internal pressure and the risk of explosion. A valve body 10 is assembled on the top of the fire extinguisher canister 1.

[0041] The working principle of the above embodiments is as follows:

[0042] After a fire occurs in the storage environment of fire extinguisher canister 1, the ambient temperature gradually rises. When the temperature reaches 68°C, the glycerin mixture inside the heat-sensitive glass tube 407 expands due to heat, putting pressure on the heat-sensitive glass tube 407 and causing it to rupture. The ruptured heat-sensitive glass tube 407 cannot seal the pressure relief hole 406, so the bottom of the pressure relief hole 406 is connected to the water storage chamber at the bottom of the pressure relief pipe 3 through the vertical pipe 402 and the connecting pipe 401. The water storage chamber is equipped with pressurized water, which is discharged from the pressure relief hole 406 and the threaded pipe 408 through the pressure relief pipe 3, the connecting pipe 401, and the vertical pipe 402 to the atomizing nozzle 411 installed on the pressure relief top pipe 409, atomizing the water and spraying it out to form a water mist barrier around the fire extinguisher canister 1 to isolate the high temperature. At the same time, it cools down the fire extinguisher canister 1, making it easier for personnel to use the cooled fire extinguisher canister 1 after they arrive.

[0043] When personnel use the fire extinguisher canister 1, they can manually turn the rotary knob 412 to seal the atomizing nozzle 411 of the pressure relief pipe 409, which makes it easier for personnel to use the valve body 10 to use the fire extinguisher canister 1.

[0044] When no one is present to use it, the internal space of the water storage chamber of the fire extinguisher tank 1 gradually decreases, causing the force block 7 on its piston disc 2 to move to contact the pressure relief pipe 3. The pressure relief pipe 3 compresses the return spring 9, allowing the one-way valve core 8 to descend to the bottom of the one-way pipe 6, releasing the carbon dioxide inside the fire extinguishing storage chamber into the water storage chamber. The carbon dioxide is then discharged to the outside of the fire extinguisher tank 1 through the pressure relief structure 4 connected to the water storage chamber. This allows the carbon dioxide to extinguish the fire on the outside of the fire extinguisher tank 1 while also avoiding the risk of the fire extinguisher tank 1 becoming too pressurized and exploding due to the heat of the fire.

[0045] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A fire extinguisher valve device with temperature response function, characterized in that, include: Fire extinguisher canister (1); a piston disc (2) is provided inside the fire extinguisher canister (1) in a sealed and movable manner. The fire extinguisher canister (1) is divided into a fire extinguishing storage chamber and a water storage chamber by a piston disc (2); The top of the fire extinguisher tank (1) is equipped with a pressure relief pipe (3) for relieving pressure in the water storage chamber and the fire extinguishing storage chamber. The pressure relief pipe (3) is symmetrically fitted with a pressure relief structure (4) exposed on the outside of the fire extinguisher tank (1) along the middle. The pressure relief structure (4) includes a heat-sensitive glass tube (407) that can withstand the cracking of an ambient temperature of 68°C.

2. The fire extinguisher valve device with temperature response function according to claim 1, characterized in that, The pressure relief structure (4) also includes a connecting pipe (401) that is sealed to the pressure relief pipe (3), and a vertical pipe (402) is sealed at the end of the connecting pipe (401) away from the pressure relief pipe (3).

3. A fire extinguisher valve device with temperature response function according to claim 2, characterized in that, The top of the vertical tube (402) is sealed with a heat-sensing tube (403). Both ends of the heat-sensing tube (403) are provided with internal threads (404). The inner side of the heat-sensing tube (403) is spirally sealed with a heat-sensing button (405) through the internal threads (404). A heat-sensing glass tube (407) is provided between the two sets of heat-sensing buttons (405) to seal and block the heat-sensing tube (403).

4. A fire extinguisher valve device with temperature response function according to claim 3, characterized in that, The top end of the heat-sensing tube (403) is sealed with a threaded tube (408), and a pressure relief pipe (409) is provided inside the threaded tube (408), and the outer wall of the pressure relief pipe (409) is provided with an external thread (410).

5. A fire extinguisher valve device with temperature response function according to claim 4, characterized in that, The pressure relief jacking pipe (409) is equipped with an atomizing nozzle (411) for spraying water atomized from the top, and a rotating knob (412) is fixed at the top of the atomizing nozzle (411).

6. A fire extinguisher valve device with temperature response function according to claim 1, characterized in that, A tension spring (5) is fitted between the bottom of the piston disc (2) and the inside of the fire extinguisher canister (1).

7. A fire extinguisher valve device with temperature response function according to claim 6, characterized in that, The piston disc (2) is fixed with a one-way tube (6) at its center, and a one-way valve core (8) is sealed and movable inside the one-way tube (6). A force-applying block (7) is fixed at the top of the one-way valve core (8), and a return spring (9) is assembled between the force-applying block (7) and the one-way tube (6).

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