A portable fire extinguisher

Abstract

The utility model discloses a portable fire extinguisher, including fire extinguisher bottle and the safety valve of setting at fire extinguisher bottle top, the safety valve front end is provided with the discharge gate, the discharge gate front end sealing connection has fire extinguishing agent delivery hose, when fire extinguishing agent delivery hose is curved to the state downward, and fire extinguishing agent delivery hose bottom end opening then fixedly connected with fire -extinguishing spray head, through the novel fire extinguishing device of adding near fire source in the right -hand outer wall of fire extinguisher bottle, its core is to replace the palm holding fire -extinguishing spray head near fire source, from the root source isolation high temperature flame, smoke and dust to the user's hand's baking and scalding risk, and traditional handheld spray head needs hand near distance contact high temperature area, and it is easy to cause burn, glove melting, the device force transmission is borrowed metal extension pole, and the user's hand can be far away from fire source, and only control top -end manual operating rod can deliver spray head, and the probability of limb injury is reduced greatly, and the key safety barrier is provided.

Description

Technical Field

[0001] This utility model belongs to the field of fire protection technology, specifically relating to a portable fire extinguisher. Background Technology

[0002] Portable fire extinguishers, as key equipment for responding to initial fires, are widely used in various scenarios such as homes, offices, commercial complexes, and vehicles due to their small size, ease of transport, and relatively simple operation. They are an indispensable basic equipment in fire safety systems. Their core function is to store extinguishing agent in the extinguishing cylinder and, through the coordinated action of components such as the safety valve, extinguishing agent delivery hose, and extinguishing nozzle, accurately spray the extinguishing agent to the fire source, quickly suppressing or extinguishing initial fires, effectively preventing the spread of fire, reducing the risk of casualties and property damage, and buying time for subsequent professional fire rescue.

[0003] However, when using traditional portable fire extinguishers near a fire, the user must hold the nozzle directly in their palm and extend their arm to deliver it to the vicinity of the fire. But at fire scenes, the area around the fire source is often accompanied by high-temperature flames and scorching smoke, directly exposing the user's hands to the high temperature environment, making them highly susceptible to burns, especially when the fire is large or the extinguishing time is long. Furthermore, some fire sources are located in concealed positions (such as equipment gaps or deep within shelves) or are obstructed by obstacles, making it difficult to accurately deliver the nozzle to the fire point using only arm length. This results in the extinguishing agent not effectively reaching the core of the fire, affecting the extinguishing effect. Utility Model Content

[0004] The purpose of this utility model is to provide a portable fire extinguisher to solve the problem mentioned in the background art that when using a traditional portable fire extinguisher to extinguish a fire, the user needs to hold the extinguishing nozzle directly with their palm and extend their arm to deliver the nozzle to the vicinity of the fire source. However, the area around the fire source at the fire scene is often accompanied by high-temperature flames and scorching smoke, and the user's hands are directly exposed to the high-temperature environment, making them very susceptible to being baked or even burned.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable fire extinguisher, comprising a fire extinguisher bottle and a safety valve disposed at the top of the fire extinguisher bottle, wherein a discharge port is provided at the front end of the safety valve, and a fire extinguishing agent delivery hose is sealed and connected to the front end of the discharge port; when the fire extinguishing agent delivery hose is in a downward bent state, a fire extinguishing nozzle is fixedly connected to the bottom opening of the fire extinguishing agent delivery hose; and a fire extinguishing device near the fire source is provided on the outer wall of the fire extinguisher bottle near the top right end.

[0006] Preferably, the fire extinguishing device near the fire source includes a circular rotating block and a circular fixed block. The circular fixed block is fixed to the outer wall of the fire extinguisher bottle near the top right end by welding. A circular rotating block is provided at the right end of the circular fixed block, and the circular rotating block is rotatably connected to the circular fixed block by a metal shaft.

[0007] Preferably, the fire extinguishing device near the fire source further includes a metal extension rod and an arc-shaped connecting rod. The outer wall of the bottom end of the circular rotating block is welded with a metal extension rod, and the bottom end of the metal extension rod is welded with an arc-shaped connecting rod. Both the metal extension rod and the arc-shaped connecting rod are made of aluminum alloy.

[0008] Preferably, when the metal extension rod is in a downward vertical state, its bottom end is close to the outer wall of the bottom of the fire extinguisher bottle, and the arc-shaped connecting rod surrounds the outer side of the fire extinguisher bottle near the bottom front end. The arc of the arc-shaped connecting rod is consistent with the arc of the outer wall of the fire extinguisher bottle, and the end of the arc-shaped connecting rod away from the metal extension rod is located on the front side of the outer wall of the fire extinguisher bottle near the center of the bottom front end.

[0009] Preferably, the fire extinguishing device near the fire source further includes an open-type elastic sleeve and a high-temperature resistant rubber inner pad. An open-type elastic sleeve is welded and fixed to the outer wall of the end of the arc-shaped connecting rod away from the metal extension rod, and the opening of the open-type elastic sleeve faces forward. A high-temperature resistant rubber inner pad is fixed to the arc-shaped inner wall of the open-type elastic sleeve. After the opening of the open-type elastic sleeve is expanded, it can be directly fitted onto the outside of the top of the fire extinguishing nozzle, and the high-temperature resistant rubber inner pad is tightly fitted to the circular outer wall at the top of the opening of the fire extinguishing nozzle.

[0010] Preferably, the fire extinguishing device near the fire source further includes a heat-insulating protective sleeve and a manual operating lever. The manual operating lever is welded to the top of the circular rotating block, and the heat-insulating protective sleeve is sleeved and fixed to the outside of the manual operating lever.

[0011] Preferably, the manual operating lever can drive the circular rotating block to rotate clockwise and counterclockwise in the front-back direction, which in turn drives the metal extension rod at the bottom of the circular rotating block to rotate synchronously. After the open elastic sleeve is fixed to the outside of the top of the fire extinguishing nozzle, the metal extension rod can rotate forward and push the fire extinguishing nozzle forward through the arc-shaped connecting rod.

[0012] Preferably, the inlet of the safety valve is connected to the inside of the fire extinguisher bottle, and a switch handle is provided at the top of the safety valve, the switch handle being connected to the valve core of the safety valve.

[0013] Preferably, a pressure gauge is connected to the left end of the safety valve, and the pressure gauge is connected to the inside of the fire extinguisher bottle through the safety valve. A safety pin is inserted into the shaft of the switch handle. The safety pin can prevent the switch handle from rotating. After the safety pin is pulled out, the switch handle can rotate normally and open the safety valve.

[0014] Compared with the prior art, this utility model provides a portable fire extinguisher with the following features:

[0015] Beneficial effects:

[0016] This utility model adds a novel fire extinguishing device to the outer wall of the right end of the fire extinguisher bottle. The core value of this device is that it replaces the user's hand in directly holding the fire nozzle and approaching the fire source. It fundamentally isolates the user's hands from the direct baking and burn risk of high-temperature flames and scorching smoke during the fire extinguishing process. At the fire scene, the temperature around the fire source is often extremely high. When using a traditional handheld nozzle to extinguish a fire, the hands need to be in close contact with the high-temperature area, which can easily lead to safety hazards such as skin burns and melting and sticking of gloves. However, by transmitting force through the metal extension rod of the device, the user's hands can be kept at a safe distance away from the fire source. The nozzle can be extended by simply operating the manual operating lever at the top, which greatly reduces the probability of limb injury and provides a key safety barrier for firefighters.

[0017] This device utilizes the rotation of a circular rotating block and a metal shaft to achieve flexible operation of extending the fire extinguishing nozzle as needed. Users do not need to adjust their stance; simply rotating the manual control lever forward or backward drives the circular rotating block to rotate synchronously, allowing the metal extension rod to smoothly extend the fire extinguishing nozzle forward. This easily achieves precise proximity between the nozzle and the fire source, avoiding the cumbersome operation of traditional handheld methods that require frequent body movements and arm adjustments. It is particularly suitable for confined spaces or scenarios where the fire source is difficult to locate. Furthermore, the metal extension rod and curved connecting rod are made of high-strength aluminum alloy, resulting in a stable structure and lightweight design. This ensures that the nozzle will not shift due to rod deformation during extension and reduces the user's operational burden. Compared to handheld nozzles that are prone to shaking due to arm fatigue, this device allows the fire extinguishing nozzle to maintain a stable spray angle and position, improving the accuracy of the extinguishing agent spray and ensuring fire extinguishing efficiency. Attached Figure Description

[0018] Figure 1 This is a front-view three-dimensional structural diagram of a portable fire extinguisher according to the present invention.

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of a portable fire extinguisher according to the present invention.

[0020] Figure 3 This is a schematic diagram of the right-side plan view of a portable fire extinguisher according to the present invention.

[0021] Figure 4 This is a rear-view three-dimensional structural diagram of the fire extinguishing device for proximity to a fire source according to this utility model.

[0022] Figure 5 This is a schematic diagram of the individual three-dimensional structure of the fire extinguishing device for proximity to a fire source according to this utility model.

[0023] In the diagram: 1. Fire extinguishing nozzle; 2. Fire extinguishing device near the fire source; 3. Extinguishing agent delivery hose; 4. Fire extinguisher bottle; 5. Safety valve; 6. Switch handle; 7. Pressure gauge; 8. Safety pin; 9. Heat insulation protective sleeve; 10. Manual operating lever; 11. Circular rotating block; 12. Circular fixing block; 13. Metal extension rod; 14. Open-type elastic ferrule; 15. Arc-shaped connecting rod; 16. High-temperature resistant rubber inner pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-5 The portable fire extinguisher shown includes a fire extinguisher cylinder 4 and a safety valve 5 located at the top of the fire extinguisher cylinder 4. The inlet of the safety valve 5 is directly connected to the inside of the fire extinguisher cylinder 4. This design ensures that the extinguishing agent in the fire extinguisher cylinder 4 can directly enter the safety valve 5, providing a basic path for subsequent spraying. A switch handle 6 is located at the top of the safety valve 5. The switch handle 6 is connected to the valve core of the safety valve 5. When the fire extinguishing function needs to be activated, the valve core can be opened or closed by rotating the switch handle 6, thereby releasing or closing the extinguishing agent. This direct connection structure makes the operation more direct and efficient, reduces the possibility of failure in intermediate transmission links, and improves the response speed of the fire extinguishing operation. At the same time, a pressure gauge 7 is connected to the left end of the safety valve 5, and the pressure gauge 7 is connected to the safety valve 5 via... The fire extinguisher bottle 4 is internally connected, and this positional relationship allows the pressure gauge 7 to monitor the pressure inside the fire extinguisher bottle 4 in real time and accurately. Users can quickly determine whether the fire extinguisher is in normal working condition by observing the pressure gauge 7 value, and check for potential safety hazards such as insufficient pressure or overpressure in advance, avoiding the impact of pressure problems on the fire extinguishing effect or causing safety accidents. In addition, a safety pin 8 is inserted into the pivot of the switch handle 6. The safety pin 8 can prevent the switch handle 6 from rotating. When not in use, the safety pin 8 can effectively prevent the switch handle 6 from being accidentally touched, which would cause the fire extinguishing agent to leak, ensuring the storage safety of the fire extinguisher. When it is needed, simply pull out the safety pin 8, and the switch handle 6 can rotate normally and open the safety valve 5. The operation is simple and convenient, which can buy valuable time for emergency fire extinguishing.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, the safety valve 5 has a discharge port at its front end, and the front end of the discharge port is sealed with an extinguishing agent delivery hose 3. The sealed connection can effectively prevent the extinguishing agent from leaking from the connection during delivery, ensuring that the extinguishing agent can be completely delivered to the fire location through the delivery hose, reducing waste and ensuring fire extinguishing efficiency. When the extinguishing agent delivery hose 3 is bent downwards, the fire extinguishing nozzle 1 is fixedly connected to its bottom opening. This bent connection design allows the fire extinguishing nozzle 1 to hang down naturally, making it easy for the user to quickly adjust the nozzle direction during operation. At the same time, the fixed connection structure ensures the stability of the nozzle during the spraying process, preventing the spray direction from deviating due to the nozzle loosening, which would affect the accuracy of fire extinguishing.

[0027] like Figure 1 , Figure 4 and Figure 5 As shown, a fire extinguishing device 2 is installed on the outer wall near the top right end of the fire extinguisher bottle 4. The fire extinguishing device 2 includes a circular rotating block 11 and a circular fixed block 12. The circular fixed block 12 is welded to the outer wall near the top right end of the fire extinguisher bottle 4. Welding provides a strong connection and high stability, ensuring that the entire fire extinguishing device 2 will not fall off the fire extinguisher bottle 4 during use, thus guaranteeing the safe operation of the device. A circular rotating block 11 is installed on the right end of the circular fixed block 12, and the circular rotating block 11 is rotatably connected to the circular fixed block 12 via a metal shaft. The rotation of the metal shaft allows the circular rotating block 11 to rotate flexibly in both clockwise and counterclockwise directions. This rotating structure provides a basis for subsequent adjustment of the position of the fire extinguishing nozzle 1. Compared with the fixed structure, it can more flexibly adapt to the fire extinguishing needs of different fire source locations. The fire extinguishing device 2 also includes a metal extension rod 13 and an arc-shaped connecting rod 15. A metal extension rod is welded to the outer wall at the bottom end of the circular rotating block 11. 13. An arc-shaped connecting rod 15 is welded to the bottom end of the metal extension rod 13. Both the metal extension rod 13 and the arc-shaped connecting rod 15 are made of aluminum alloy. Aluminum alloy has the advantages of being lightweight and high-strength, which not only reduces the weight of the entire device, making it easier for users to carry and operate, but also ensures that the rod body is not easily deformed during use, ensuring structural stability. When the metal extension rod 13 is in a downward vertical state, its bottom end is close to the outer wall of the bottom end of the fire extinguisher bottle 4, and the arc-shaped connecting rod 15 surrounds the outer front end of the fire extinguisher bottle 4 near the bottom end. The curvature of the arc-shaped connecting rod 15 is consistent with the curvature of the outer wall of the fire extinguisher bottle 4, and the end of the arc-shaped connecting rod 15 away from the metal extension rod 13 is located on the front side of the outer wall of the fire extinguisher bottle 4 near the center of the bottom front end. This design of fitting the outer wall of the fire extinguisher bottle 4 allows the metal extension rod 13 and the arc-shaped connecting rod 15 to fit tightly against the bottle body when not in use, without occupying extra space, which facilitates the storage and transportation of the fire extinguisher, and also avoids the situation where the parts are damaged by collision due to protrusion when idle.

[0028] like Figure 1 , Figure 4 and Figure 5 As shown, the fire extinguishing device 2 near the fire source is also equipped with an open-type elastic sleeve 14 and a high-temperature resistant rubber inner pad 16. An open-type elastic sleeve 14 is welded and fixed to the outer wall of the end of the arc-shaped connecting rod 15 away from the metal extension rod 13, with the opening of the open-type elastic sleeve 14 facing forward. A high-temperature resistant rubber inner pad 16 is fixed to the arc-shaped inner wall of the open-type elastic sleeve 14. After the opening of the open-type elastic sleeve 14 is expanded, it can be directly fitted onto the outside of the top of the fire extinguishing nozzle 1. The installation method is simple and quick, requiring no additional tools, allowing the user to easily install the device. In emergencies, the nozzle and device can be quickly connected. The high-temperature resistant rubber inner gasket 16 fits tightly against the circular outer wall at the top of the nozzle opening. The high-temperature resistant rubber material can withstand the high-temperature environment near the nozzle during fire extinguishing, preventing the rubber gasket from melting or being damaged due to high temperature. At the same time, the tight fit structure can prevent the fire extinguishing nozzle 1 from loosening or slipping out of the clamp during use, ensuring the stability of the nozzle and device connection. Near the fire source, the top of the fire extinguishing device 2 is also equipped with a manual operating lever 10 and a heat-insulating protective sleeve 9. The circular rotating block 11 is located at the top. The manual operating lever 10 is welded to the end, and a heat-insulating protective sleeve 9 is fixed to the outside of the manual operating lever 10. The heat-insulating protective sleeve 9 can effectively isolate the heat transferred to the operating lever during the fire extinguishing process, prevent the user's hands from being burned by contact with the high-temperature operating lever, and improve the safety of operation. In the actual fire extinguishing process, after the open elastic sleeve 14 is fixed to the outside of the top of the fire extinguishing nozzle 1, the user can drive the circular rotating block 11 to rotate clockwise and counterclockwise by operating the manual operating lever 10, which in turn drives the metal extension rod 13 at the bottom of the circular rotating block 11 to rotate synchronously. When the metal extension rod 13 rotates forward, it will extend the fire extinguishing nozzle 1 forward through the arc-shaped connecting rod 15. This operating principle replaces the traditional way of holding the fire extinguishing nozzle 1 directly with the palm of the hand and approaching the fire source, allowing the user's hands to stay away from the high-temperature fire source area, greatly reducing the risk of the hands being burned by high-temperature flames and smoke. At the same time, through the extension effect of the metal extension rod 13, the fire extinguishing nozzle 1 can be delivered to a position closer to the fire source or that is difficult to reach by hand in the traditional way, improving the accuracy and effectiveness of fire extinguishing.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable fire extinguisher, comprising a fire extinguisher bottle (4) and a safety valve (5) disposed at the top of the fire extinguisher bottle (4), wherein the safety valve (5) has a discharge port at its front end, and a fire extinguishing agent delivery hose (3) is sealed and connected to the front end of the discharge port; when the fire extinguishing agent delivery hose (3) is bent downwards, a fire extinguishing nozzle (1) is fixedly connected to the opening at the bottom end of the fire extinguishing agent delivery hose (3), characterized in that: The fire extinguisher bottle (4) is provided with a fire extinguishing device (2) near the fire source on the outer wall near the right end of the top; The fire extinguishing device (2) near the fire source includes a circular rotating block (11) and a circular fixing block (12). The circular fixing block (12) is fixed to the outer wall of the fire extinguisher bottle (4) near the top right end by welding. The circular fixing block (12) is provided with a circular rotating block (11) at the right end, and the circular rotating block (11) is rotatably connected to the circular fixing block (12) by a metal shaft.

2. A portable fire extinguisher according to claim 1, characterized in that: The fire extinguishing device (2) near the fire source also includes a metal extension rod (13) and an arc-shaped connecting rod (15). The outer wall of the bottom end of the circular rotating block (11) is welded with a metal extension rod (13), and the bottom end of the metal extension rod (13) is welded with an arc-shaped connecting rod (15). Both the metal extension rod (13) and the arc-shaped connecting rod (15) are made of aluminum alloy.

3. A portable fire extinguisher according to claim 2, characterized in that: When the metal extension rod (13) is in a downward vertical state, its bottom end is close to the bottom outer wall of the fire extinguisher bottle (4), and the arc-shaped connecting rod (15) surrounds the fire extinguisher bottle (4) near the bottom front end. The arc of the arc-shaped connecting rod (15) is consistent with the arc of the outer wall of the fire extinguisher bottle (4), and the end of the arc-shaped connecting rod (15) away from the metal extension rod (13) is located on the front side of the outer wall of the fire extinguisher bottle (4) near the bottom front center.

4. A portable fire extinguisher according to claim 3, characterized in that: The fire extinguishing device (2) near the fire source also includes an open-type elastic sleeve (14) and a high-temperature resistant rubber pad (16). The outer wall of the arc-shaped connecting rod (13) away from the metal extension rod (15) is welded and fixed with an open-type elastic sleeve (14), and the opening of the open-type elastic sleeve (14) faces forward. The arc-shaped inner wall of the open-type elastic sleeve (14) is fixed with a high-temperature resistant rubber pad (16). After the opening of the open-type elastic sleeve (14) is expanded, it can be directly sleeved on the outside of the top of the fire extinguishing nozzle (1), and the high-temperature resistant rubber pad (16) fits tightly against the circular outer wall at the top of the opening of the fire extinguishing nozzle (1).

5. A portable fire extinguisher according to claim 4, characterized in that: The fire extinguishing device (2) near the fire source also includes a heat insulation protective sleeve (9) and a manual operating lever (10). The manual operating lever (10) is welded to the top of the circular rotating block (11), and the heat insulation protective sleeve (9) is fixed to the outside of the manual operating lever (10).

6. A portable fire extinguisher according to claim 5, characterized in that: The manual operating lever (10) can drive the circular rotating block (11) to rotate clockwise and counterclockwise in the front-back direction, and then drive the metal extension rod (13) at the bottom of the circular rotating block (11) to rotate synchronously. After the open elastic sleeve (14) is sleeved and fixed on the outside of the top of the fire extinguishing nozzle (1), the metal extension rod (13) rotates forward and can push the fire extinguishing nozzle (1) forward through the arc-shaped connecting rod (15).

7. A portable fire extinguisher according to claim 1, characterized in that: The inlet of the safety valve (5) is connected to the inside of the fire extinguisher bottle (4). A switch handle (6) is provided at the top of the safety valve (5). The switch handle (6) is connected to the valve core of the safety valve (5).

8. A portable fire extinguisher according to claim 7, characterized in that: The left end of the safety valve (5) is connected to a pressure gauge (7), and the pressure gauge (7) is connected to the inside of the fire extinguisher bottle (4) through the safety valve (5). A safety pin (8) is inserted into the shaft of the switch handle (6). The safety pin (8) can prevent the switch handle (6) from rotating. After the safety pin (8) is pulled out, the switch handle (6) can rotate normally and open the safety valve (5).

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