Valve for gas cylinder fire extinguisher

Abstract

The utility model discloses a kind of gas cylinder type fire extinguisher valves, it is related to fire extinguisher valve technical field, including fire extinguisher tank body, the top of fire extinguisher tank body is fixedly installed with valve body, the front of valve body is fixedly installed with protection mechanism, the protection mechanism is coated in the outer surface of valve body.This technical scheme during application, by setting protection mechanism, including front plate, hinged seat, pivot, protective shell etc., so that protective shell can tightly coat valve body during use, when fire extinguisher accidentally tips over, protective shell directly contacts with object, absorbs collision impact force, protects internal pressure handle, handle, safety mechanism and pressure gauge, and the tempered glass plate of observation window does not affect pressure observation, and then reached the effect of improving valve body and related components anti accidental damage ability, solved the problem that safety mechanism and pressure gauge are easily damaged due to collision in prior art.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguisher valve technology, and specifically relates to a gas cylinder type fire extinguisher valve. Background Technology

[0002] Fire, as one of the major disasters threatening human life and property globally, causes incalculable economic losses and numerous casualties every year. To effectively prevent and respond to fires, public areas such as building corridors are usually equipped with a large number of fire cabinets and fire hydrants. Among them, the fire extinguishers placed in the fire cabinets are key equipment for dealing with initial fires. A fire extinguisher is a portable fire extinguishing tool. The chemical substances inside can quickly extinguish fires. Due to the complex and diverse causes of fires, the extinguishing agent composition of different types of fire extinguishers varies significantly, and they are suitable for different types of fire scenarios. For example, foam fire extinguishers are suitable for extinguishing oil fires, while carbon dioxide fire extinguishers are suitable for extinguishing fires involving precision instruments. Therefore, when using fire extinguishers, it is essential to strictly follow their applicable scope and operating procedures; otherwise, it may produce adverse effects or even cause greater danger.

[0003] During the use of fire extinguishers, the valve's anti-accidental activation performance is crucial. If the valve is accidentally opened, it will not only waste the extinguishing agent but may also cause unnecessary danger in non-fire scenarios. To improve the anti-accidental activation effect of fire extinguisher valves, existing technologies have relevant solutions. For example, Chinese Patent No. CN219878988U discloses a valve structure for a dry powder fire extinguisher. This utility model constructs a triangular structure between the handle and the pressure handle to block and limit the pressure handle, effectively preventing the fire extinguisher valve from being opened due to accidental pressing of the pressure handle. It also has the advantages of reusability and anti-detachment, making it highly practical.

[0004] However, the aforementioned existing technologies still have certain limitations in practical use. The safety mechanism they employ achieves the anti-accidental activation function by supporting the handle between the pressure lever and the carrying handle. However, when the fire extinguisher is accidentally tilted, this safety mechanism is easily damaged by collision with surrounding objects, thus affecting the normal operation of the pressure lever. In addition, the pressure gauge on the valve is also easily damaged during the tilting of the fire extinguisher, making it impossible to accurately judge the internal pressure status of the fire extinguisher, which seriously affects the normal use of the fire extinguisher. It is evident that the existing fire extinguisher valve structure still has room for improvement in terms of anti-accidental activation performance and resistance to accidental damage, and further improvements are urgently needed to meet the safety requirements in actual use. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a gas cylinder type fire extinguisher valve to solve the problems raised in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A gas cylinder type fire extinguisher valve includes a fire extinguisher canister, a valve body is fixedly installed on the top of the fire extinguisher canister, a protective mechanism is fixedly installed on the front of the valve body, and the protective mechanism covers the outer surface of the valve body.

[0008] The protective mechanism includes a front plate, which is fixedly installed in the middle of the front of the valve body. A limit card is fixedly installed on the top of the front plate, and a covering component is installed on both sides of the front plate, which covers the outside of the valve body.

[0009] As a preferred technical solution, the covering assembly includes a hinge seat, which is fixedly installed on both sides of the front plate. A rotating shaft is rotatably connected inside the hinge seat, and a protective shell is fixedly installed on the outside of the rotating shaft. The protective shell covers the outside of the valve body.

[0010] As a preferred technical solution, a magnetic suction plate is fixedly connected to the inner side of the protective shell, and the negative poles of the magnetic suction plates between the inner sides of the two dustproof shells are all set on the side that is close to each other, and the side of the magnetic suction plate is U-shaped.

[0011] As a preferred technical solution, a pressure gauge is fixedly connected to one side of the valve body, and the outer corners of the fire extinguisher tank are rounded.

[0012] As a preferred technical solution, an observation window is provided in the middle of the outer side of the protective housing near the pressure gauge in the two protective housings, and a tempered glass plate is fixedly connected inside the observation window.

[0013] As a preferred technical solution, the limiting card assembly includes a guide rail and a card slot. The guide rail is fixedly installed on the upper end of the front plate. A limiting spring is fixedly connected inside the guide rail. A movable block is fixedly connected to the top of the limiting spring. A connecting frame is fixedly connected to the top of the movable block. A base plate is fixedly connected to the outer end of the connecting frame. Card blocks are fixedly connected to both sides of the bottom of the base plate. The card slot is opened on the top inner side of the protective shell. The bottom of the card block is inserted into the inside of the card slot.

[0014] As a preferred technical solution, an adjustment plate is fixedly installed on the front of the movable block, and an adjustment pull ring is fixedly connected to the top of the adjustment plate.

[0015] In summary, the present invention has the following main advantages:

[0016] First, during the application of this technical solution, by setting up a protective mechanism, including a front plate, hinge seat, rotating shaft, and protective shell, the protective shell can tightly cover the valve body during use. When the fire extinguisher is accidentally tilted, the protective shell directly contacts the object, absorbing the impact force and protecting the internal handle, lifting handle, safety mechanism, and pressure gauge. Moreover, the tempered glass plate of the observation window does not affect pressure observation, thereby improving the resistance of the valve body and related components to accidental damage and solving the problem that the safety mechanism and pressure gauge are easily damaged by collision in the prior art.

[0017] Secondly, during the application of this technical solution, the mutual repulsion design of the magnetic suction plate, in conjunction with the limiting card group, allows the protective shell to quickly pop open after the limiting card group is unlocked in an emergency. This facilitates easy unlocking while ensuring the stable closure of the protective shell when not in use. This improves the efficiency of fire extinguisher use in emergency situations, achieving a balance between protection and operability. It also solves the problem that the protective mechanism in the existing technology is cumbersome to open and may delay the timing of fire extinguishing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear view of the protective mechanism of this utility model in the opened state;

[0020] Figure 3 This is a schematic diagram of the limiting card group structure of this utility model;

[0021] Figure 4 This is a utility model Figure 2 A magnified structural diagram at point A.

[0022] Reference numerals in the attached drawings: 1. Fire extinguisher tank; 2. Valve body; 3. Protective mechanism; 31. Front plate; 32. Limiting block; 321. Guide rail; 322. Slot; 323. Limiting spring; 324. Movable block; 325. Base plate; 326. Locking block; 327. Adjusting plate; 328. Adjusting pull ring; 329. Connecting frame; 33. Covering assembly; 331. Hinge seat; 332. Rotating shaft; 333. Protective shell; 334. Magnetic suction plate; 335. Observation window; 4. Pressure gauge. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 4 The embodiment of the gas cylinder type fire extinguisher valve includes a fire extinguisher tank 1, a valve body 2 fixedly installed on the top of the fire extinguisher tank 1, a protective mechanism 3 fixedly installed on the front of the valve body 2, and the protective mechanism 3 covering the outer surface of the valve body 2.

[0025] The protective mechanism 3 includes a front plate 31, which is fixedly installed in the middle of the front of the valve body 2. A limit locking group 32 is fixedly installed on the top of the front plate 31. Covering components 33 are installed on both sides of the front plate 31, covering the outside of the valve body 2. During the application of this device, the protective mechanism 3 on the front of the valve body 2 is in a closed state. The front plate 31 is fixed in the middle of the front of the valve body 2, and the covering components 33 on both sides cover the outside of the valve body 2. At the same time, the limit locking group 32 on the top of the front plate 31 limits the covering components 33, so that the protective mechanism 3 stably covers the valve body 2. This structure can effectively protect the valve body 2 and reduce the impact of external factors. When it is needed, the limit locking group 32 is operated to release the limit on the covering components 33, and the covering components 33 can be opened to expose the valve body 2 for fire extinguishing operations. In this process, the structural design of the protective mechanism 3 not only ensures good protection for the valve body 2, but also allows for convenient opening during use, improving the convenience and safety of use.

[0026] refer to Figures 3-4 The limiting block 32 includes a guide rail 321 and a slot 322. The guide rail 321 is fixedly installed on the upper end of the front plate 31. A limiting spring 323 is fixedly connected inside the guide rail 321. A movable block 324 is fixedly connected to the top of the limiting spring 323. A connecting frame 329 is fixedly connected to the top of the movable block 324. A base plate 325 is fixedly connected to the outer end of the connecting frame 329. Card blocks 326 are fixedly connected to both sides of the bottom of the base plate 325. The slot 322 is opened on the top inner side of the protective shell 333. The bottom of the card block 326 is inserted into the slot 322. An adjusting plate 327 is fixedly installed on the front of the movable block 324. An adjusting pull ring 328 is fixedly connected to the top of the adjusting plate 327. During the application of this device, when the limiting block 32 is working, the guide rail 321 is fixedly in the front plate 31. The upper end of plate 31 provides a moving path for movable block 324. Limiting spring 323 is connected between the guide rail 321 and movable block 324. In the non-use state, limiting spring 323 naturally extends to push movable block 324 upward, driving base plate 325 and bottom locking block 326 to move synchronously, so that locking block 326 is inserted into the locking groove 322 on the inner side of the top of protective housing 333, realizing the limiting and fixing of protective housing 333. This structure can stably keep the protective mechanism 3 closed and prevent it from being opened accidentally. When it is necessary to unlock, pull the adjusting ring 328, and through adjusting plate 327, drive movable block 324 to compress limiting spring 323 downward, locking block 326 disengages from locking groove 322, releasing the limit. The operation is convenient and ensures that the protective housing 333 can be opened quickly in an emergency, improving the efficiency of use.

[0027] refer to Figures 1-4The covering assembly 33 includes a hinge seat 331, which is fixedly installed on both sides of the front plate 31. A rotating shaft 332 is rotatably connected inside the hinge seat 331. A protective shell 333 is fixedly installed on the outside of the rotating shaft 332, covering the outside of the valve body 2. A magnetic suction plate 334 is fixedly connected to the inside of the protective shell 333. The negative poles of the magnetic suction plate 334 between the inner sides of the two protective shells are positioned on their adjacent sides. The side of the magnetic suction plate 334 is U-shaped. A pressure gauge 4 is fixedly connected to one side of the valve body 2. The outer corners of the fire extinguisher tank 1 are rounded. An observation window 335 is provided in the middle of the outer side of the protective shell 333 closest to the pressure gauge 4. A tempered glass plate is fixedly connected inside the observation window 335. During the application of this device, the hinge seat 331 is fixed to both sides of the front plate 31. The valve body 2 is equipped with a protective housing 333 on the outside of the rotating shaft 332 connected internally. When not in use, the protective housing 333 rotates and covers the outside of the valve body 2 with the help of the rotating shaft 332. The magnetic suction plate 334 on the inside generates a repulsive force due to the negative poles being close together, but is held in place by external force, achieving initial fixation. This structure can form a tight protection for the valve body 2 and reduce damage caused by external collisions. The pressure gauge 4 on one side of the valve body 2 can display the pressure status. The tempered glass plate inside the observation window 335 on the outside of the protective housing 333 near the pressure gauge 4 can be used to check the pressure without opening the protective housing 333, which is convenient for daily inspection. At the same time, the external corners of the fire extinguisher tank 1 are rounded, which can reduce the impact force in the event of an accidental collision and further improve the safety of use. The covering design of the protective housing 333, in conjunction with the various components, not only ensures the reliability of protection but also takes into account the convenience of use.

[0028] Operating principle and advantages: When the fire extinguisher is not in use, the protective mechanism 3 remains in a stable closed state. The hinge seats 331 on both sides of the front plate 31 are rotatably connected to the protective housing 333 via the rotating shaft 332. The protective housing 333 gradually moves towards the outside of the valve body 2 with the help of the rotational characteristics of the rotating shaft 332. The magnetic suction plate 334 on the inner side is tightly pressed together under external pressure, causing the two protective housings 333 to completely cover the outside of the valve body 2, forming a solid protective barrier. At the same time, the limit locking group 32 plays a key role in fixing. Its function is that the internal guide rail 321 provides a stable moving path for the movable block 324. The limiting spring 323 inside the guide rail 321 is in a naturally extended state, generating an upward thrust to push the movable block 324 upward along the guide rail 321, thereby driving the base plate 325 to move upward synchronously. This allows the locking block 326 at the bottom of the base plate 325 to be precisely inserted into the locking groove 322 on the inner side of the top of the protective housing 333. Through the tight cooperation between the locking block 326 and the locking groove 322, a firm limiting and fixing is formed on the protective housing 333, ensuring that the protective mechanism 3 can stably move. The valve body 2 is covered to prevent loosening or displacement. At this time, the pressure gauge 4 is located inside the protective housing 333 near the observation window 335. The pressure value on its surface can be directly observed through the observation window 335 made of tempered glass. The pressure status of the fire extinguisher can be monitored without opening the protective mechanism 3. The magnetic plate 334 remains in a closed state under the continuous limiting action of the limit card group 32, further strengthening the closing and fixing effect of the protective housing 333 and effectively enhancing the overall stability of the protective mechanism 3 in the non-use state. The limit card group 32... The mechanical cooperation between the locking block 326 and the locking slot 322 effectively limits and constrains the protective housing 333, preventing it from opening on its own due to the repulsive force of the magnetic plate 334. At the same time, the unlocking operation can be easily achieved by adjusting the pull ring 328, perfectly balancing protective performance and operational convenience. The combined design of the hinge seat 331 and the rotating shaft 332 provides flexible rotation support for the protective housing 333, ensuring that the protective housing 333 can open and close smoothly, meeting the need for rapid switching between the two states of fire extinguisher use and protection.

[0029] This comprehensive enclosed design offers significant protective advantages. When the fire extinguisher is accidentally tipped over, the protective shell 333 acts as the first line of defense, directly contacting external objects and isolating the valve body 2 and safety mechanism from external impacts. The structural strength of the protective shell 333 effectively absorbs and buffers the impact force, thus protecting the internal handle, lifting handle, and safety mechanism from damage. This successfully solves the problem in existing technologies where damage to the safety mechanism due to impact affects the normal use of the handle. Simultaneously, the pressure gauge 4 is fully enclosed by the protective shell 333, and the observation window 335 at the corresponding location is made of high-strength tempered glass. This not only does not affect normal pressure observation but also prevents external objects from directly impacting the pressure gauge 4 when the fire extinguisher is tipped over, preventing damage and ensuring accurate judgment of the internal pressure status of the fire extinguisher. When the fire extinguisher needs to be used, the operator pulls the adjusting ring 328 upwards. The adjusting ring 328, through its fixed connection with the adjusting plate 327, drives the adjusting plate 327 and the movable block 324. As the valve moves upward along guide rail 321, the limiting spring 323 is compressed and stores elastic potential energy. Simultaneously, the movable block 324 moves, and the base plate 325 moves upward, causing the locking block 326 to completely disengage from the slot 322, thus releasing the limiting constraint on the protective housing 333. Due to the repulsive design of the magnetic suction plate 334, at the instant the limiting constraint is released, the two protective housings 333 quickly spring open to both sides under the repulsive force of the magnetic suction plate 334 and rotate around the pivot 332, rapidly exposing the valve body. Body 2 provides ample space for subsequent operations. During this process, components such as the adjusting pull ring 328, adjusting plate 327, movable block 324, limit spring 323, locking block 326, and locking slot 322 work together to achieve rapid unlocking of the protective mechanism 3. Especially in the emergency of a severe fire, the repulsive force of the magnetic suction plate 334 can make the protective shell 333 pop open quickly, which can save valuable time for operators and ensure that they can quickly carry out subsequent fire extinguishing operations, avoiding delays in fire extinguishing due to the cumbersome opening process.

[0030] After the protective housing 333 is opened, the operator can follow the standard fire extinguishing procedure by removing the pin on the valve body 2, then squeezing the handle and ensuring it is firmly against the grip. At this point, the extinguishing agent in the fire extinguisher canister 1 will be smoothly ejected through the valve body 2, thus extinguishing the fire. Throughout the fire extinguishing process, the operator can monitor the pressure gauge 4 through the observation window 335 to track real-time pressure changes in the fire extinguisher. After the fire extinguishing operation is completed, the operator needs to apply a certain amount of external force to rotate the protective housing 333 towards the valve body 2, causing the magnetic... The suction plates 334 overcome the mutual repulsion and re-attach, achieving the initial fixation of the protective shell 333. During this period, the operator pulls the adjusting ring 328, causing the locking block 326 to move upward, reserving space for the complete closure of the protective shell 333. After the protective shell 333 is completely closed, simply release the adjusting ring 328, and the limiting spring 323 will return to its natural extended state, releasing the stored elastic potential energy and pushing the movable block 324 down along the guide rail 321, so that the locking block 326 can be accurately re-inserted into the slot 322, completing the reset and fixation of the protective mechanism 3.

[0031] Although the reset process requires the application of a certain external force, the overall operation is simple and easy to understand. It allows the protective mechanism 3 to quickly return to its non-use protective position, continuing to effectively protect the valve body 2 and related components. This ensures that the fire extinguisher is always in good protective condition before the next use, thereby extending its service life. Through the all-round envelopment design of the protective mechanism 3, this technical solution significantly improves the resistance to accidental damage to the valve body 2 and related components without affecting the normal use of the fire extinguisher. It successfully solves the problem of easy damage to the safety mechanism and pressure gauge 4 in the prior art. In particular, the innovative design of the mutual repulsion of the magnetic suction plate 334 allows the protective shell 333 to quickly pop open in an emergency. Combined with the convenient unlocking function of the limit card group 32, it greatly improves the efficiency of the fire extinguisher in emergency situations. The various structures work together seamlessly, achieving both excellent protective effect and convenient operation. It truly achieves a perfect balance between protection and operation, effectively improving the reliability and safety of the fire extinguisher valve.

[0032] During the application of this device, the guide rail 321 has a length of 80-120mm, a width of 20-30mm, and a thickness of 5-8mm; the limit spring 323 has a diameter of 5-8mm, a free length of 40-60mm, and a working limit load of 100-150N; the movable block 324 has a length of 30-40mm, a width of 15-25mm, and a height of 20-30mm; the base plate 325 has a length of 60-80mm, a width of 20-30mm, and a thickness of 3-5mm; the locking block 326 has a length of 15-20mm, a width of 10-15mm, and a height of 10-15mm; the slot 322 matches the size of the locking block 326 and has a depth of 10-15mm; the adjusting plate 327 has a length of 40-60mm, a width of 15-20mm, and a thickness of 2-4mm; and the adjusting pull ring 328 has a diameter of 8-12mm and a circumference of 50-80mm.

Claims

1. A valve for a gas cylinder-type fire extinguisher, characterized in that: The device includes a fire extinguisher tank (1), a valve body (2) is fixedly installed on the top of the fire extinguisher tank (1), a protective mechanism (3) is fixedly installed on the front of the valve body (2), and the protective mechanism (3) covers the outer surface of the valve body (2). The protective mechanism (3) includes a front plate (31), which is fixedly installed in the middle of the front of the valve body (2). A limit card group (32) is fixedly installed on the top of the front plate (31). Covering components (33) are installed on both sides of the front plate (31), and the covering components (33) cover the outside of the valve body (2). The limiting card group (32) includes a guide rail (321) and a card slot (322). The guide rail (321) is fixedly installed on the upper end of the front plate (31). A limiting spring (323) is fixedly connected inside the guide rail (321). A movable block (324) is fixedly connected to the top of the limiting spring (323). A connecting frame (329) is fixedly connected to the top of the movable block (324). A base plate (325) is fixedly connected to the outer end of the connecting frame (329). Card blocks (326) are fixedly connected to both sides of the bottom of the base plate (325). The card slot (322) is opened on the top inner side of the protective shell (333). The bottom of the card block (326) is inserted into the inside of the card slot (322).

2. The valve for a gas cylinder-type fire extinguisher according to claim 1, characterized in that: The covering assembly (33) includes a hinge seat (331), which is fixedly installed on both sides of the front plate (31). A rotating shaft (332) is rotatably connected inside the hinge seat (331), and a protective shell (333) is fixedly installed on the outside of the rotating shaft (332). The protective shell (333) covers the outside of the valve body (2).

3. A gas cylinder type fire extinguisher valve according to claim 2, characterized in that: A magnetic suction plate (334) is fixedly connected to the inner side of the protective shell (333). The negative poles of the magnetic suction plates (334) between the inner sides of the two dustproof shells are all set on the side that is close to each other. The side of the magnetic suction plate (334) is arranged in a concave shape.

4. A gas cylinder type fire extinguisher valve according to claim 3, characterized in that: A pressure gauge (4) is fixedly connected to one side of the valve body (2), and the outer corners of the fire extinguisher tank (1) are rounded.

5. A gas cylinder type fire extinguisher valve according to claim 3, characterized in that: An observation window (335) is provided in the middle of the outer side of the protective housing (333) on the side closer to the pressure gauge (4), and a tempered glass plate is fixedly connected inside the observation window (335).

6. A gas cylinder type fire extinguisher valve according to claim 5, characterized in that: An adjustment plate (327) is fixedly installed on the front of the movable block (324), and an adjustment pull ring (328) is fixedly connected to the top of the adjustment plate (327).

Images