Efficient dry powder extinguisher

By introducing auxiliary structures and fixing components into dry powder fire extinguishers, the problem of nozzles being difficult to approach the ignition point during high-temperature or high-altitude fires has been solved, achieving efficient fire extinguishing over long distances and improved safety.

CN224235954UActive Publication Date: 2026-05-15SHANGHAI KAISHEN FIRE FIGHTING EQUIP INSTALLATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI KAISHEN FIRE FIGHTING EQUIP INSTALLATION CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing dry powder fire extinguishers are difficult for users to approach the fire point in the event of a high-temperature or high-altitude fire, which affects the fire extinguishing effect.

Method used

A high-efficiency dry powder fire extinguisher was designed, which adopts an auxiliary structure including an auxiliary rod and a telescopic rod. The nozzle can be aligned at a distance through a fixed component and a fixed shell. Combined with the design of snap-fit ​​spring and chassis, the flexibility and safety of the nozzle are improved.

Benefits of technology

It enables fire extinguishing from a distance, directly targeting the fire, improving fire extinguishing effectiveness and user safety, especially in high-altitude fires.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an efficient dry powder extinguisher, and relates to the technical field of dry powder extinguishers. The fire extinguisher comprises a fire extinguisher body, a pressing handle is installed at the upper end of the fire extinguisher body, a spraying pipe is installed at the lower end of the pressing handle, a pressure gauge is installed on the side face of the pressing handle, a nozzle is fixed to the end, away from the fire extinguisher body, of the spraying pipe, label paper is fixed to the surface of the fire extinguisher body, and an auxiliary structure is arranged on the spraying pipe. According to the fire extinguishing device, when fire extinguishing is carried out on an ignition point, the telescopic rod is pulled to extend, then a user holds the end of the auxiliary rod by hand, the nozzle faces the ignition point, and fire extinguishing is carried out. By means of the auxiliary structure, the nozzle can be conveniently close to an ignition point, the fire extinguishing effect is improved, fire extinguishing can be conveniently conducted on the high position, the spraying range of the nozzle is widened, meanwhile, a user can stand at the position relatively far away from the ignition point to conduct fire extinguishing, and then safety can be improved.
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Description

Technical Field

[0001] This application relates to the field of dry powder fire extinguisher technology, and in particular to a high-efficiency dry powder fire extinguisher. Background Technology

[0002] Dry powder fire extinguishers are a type of fire extinguisher suitable for extinguishing initial fires involving flammable and combustible liquids, gases, and electrical equipment. The dry powder extinguishing agent inside is a dry, free-flowing, finely ground solid powder. This powder is made from inorganic salts with extinguishing properties (such as sodium bicarbonate, modified sodium salts, potassium salts, ammonium dihydrogen phosphate, and diammonium hydrogen phosphate) as a base, with small amounts of moisture-proofing agents, flow promoters, and anti-caking agents added, through drying, pulverizing, and mixing. Dry powder fire extinguishers are primarily used to extinguish initial fires involving flammable liquids and gases such as petroleum and organic solvents, and can also be used to extinguish general fires.

[0003] The fire extinguisher mentioned in the existing Chinese patent (authorization announcement number: CN222075767U) includes a main body, a handle installed on the side wall of the main body, a head valve body installed at the upper end of the main body, a suction tube installed at the lower end of the head valve body, a lifting handle installed on the side wall of the head valve body, a limit ring installed at the lower end of the lifting handle, a pressure handle movably connected to the side wall of the head valve body, a nozzle installed at the output port of the head valve body, a limit clamp installed on the side wall of the main body, the nozzle being engaged with the limit clamp, a pressure gauge installed on the side wall of the head valve body, a safety pin inserted into the side wall of the head valve body, and an auxiliary plate installed on the inner wall of the main body. This allows the limit ring to limit the index finger of the user, thus enabling the user to stably lift the main body and hold the nozzle stably when pressing down the pressure handle with the palm. This makes it convenient for people who rarely handle fire extinguishers to use, and the device has a simple structure and is easy to use.

[0004] When using existing fire extinguishers, users need to hold the nozzle and aim the end of the nozzle at the fire point to extinguish it. However, due to the high temperature, users cannot get too close to the fire point, which affects the extinguishing effect. Furthermore, when the fire point is located at a high place, it is difficult for the nozzle to get close to the fire point, resulting in poor extinguishing effect. Utility Model Content

[0005] The purpose of this application is to address the problem that users cannot get too close to the fire due to high temperatures, which affects the fire extinguishing effect, and that when the fire is located at a high place, it is difficult for the nozzle to get close to the fire, resulting in poor fire extinguishing effect. This application provides a high-efficiency dry powder fire extinguisher.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] A high-efficiency dry powder fire extinguisher includes a fire extinguisher body, a handle installed at the upper end of the fire extinguisher body, a nozzle installed at the lower end of the handle, a pressure gauge installed on the side of the handle, a nozzle fixed at the end of the nozzle away from the fire extinguisher body, a label fixed on the surface of the fire extinguisher body, and an auxiliary structure provided on the nozzle.

[0008] By adopting the above technical solution, when using this fire extinguisher to extinguish a fire, the auxiliary structure allows the nozzle to be directed towards the fire, improving the extinguishing effect. Furthermore, the user can stand at a distance from the fire to extinguish it, thereby improving safety.

[0009] Furthermore, the auxiliary structure includes an auxiliary rod disposed on the nozzle, a telescopic rod slidably disposed inside the auxiliary rod, a fixing ring fixed to the end of the telescopic rod, the fixing ring being fixedly connected to the nozzle, and a fixing component being disposed between the auxiliary rod and the telescopic rod.

[0010] By adopting the above technical solution, the auxiliary structure can be used to bring the nozzle closer to the ignition point, thereby improving the fire extinguishing effect.

[0011] Furthermore, the fixing assembly includes a fixing shell fixed to the fire extinguisher body, a fixing post slidably disposed inside the fixing shell, and two fixing holes adapted to the fixing post on the telescopic rod, the fixing post slidingly passing through the auxiliary rod and extending into the fixing hole.

[0012] By adopting the above technical solution, the telescopic pole can be fixed using the fixing components, and the fixing is relatively convenient and does not affect the rapid extension or retraction of the telescopic pole.

[0013] Furthermore, a fixing block is fixed on the fixing column, and a fixing spring is slidably sleeved on the fixing column. The fixing spring is fixedly connected to the fixing block and the fixing shell.

[0014] By adopting the above technical solution, the fixing block and the fixing spring enable the fixing column to have a limiting ability, which makes it easy to fix the telescopic rod.

[0015] Furthermore, a second fixing ring is fixed to the end of the auxiliary rod, and the second fixing ring is slidably sleeved on the nozzle.

[0016] By adopting the above technical solution, when the telescopic rod is pulled, the second fixing ring slides on the nozzle, which can restrict the nozzle and keep the nozzle on the side of the auxiliary rod.

[0017] Furthermore, the fire extinguisher body is fixed with two symmetrically arranged snap-fit ​​springs, which are arc-shaped plastic springs.

[0018] By adopting the above technical solution, the auxiliary rod can be restricted by the snap-fit ​​spring clip, thereby restricting the nozzle and facilitating the storage and transportation of the fire extinguisher.

[0019] Furthermore, a number of reinforcing strips are fixed to the surface of the snap-fit ​​spring, and the surface of the reinforcing strips is rough.

[0020] By adopting the above technical solution, the reinforcing strip can increase the friction between the snap-fit ​​spring and the auxiliary rod, thereby improving the restriction effect on the auxiliary rod.

[0021] Furthermore, a base is fixed to the lower end of the fire extinguisher body, and an anti-slip pad is fixed to the lower end of the base.

[0022] By adopting the above technical solution, the chassis can protect the bottom of the fire extinguisher.

[0023] In summary, this application includes at least one of the following beneficial effects:

[0024] 1. In this application, when extinguishing a fire, the telescopic rod is pulled to extend it. The user then holds the end of the auxiliary rod and directs the nozzle toward the fire to extinguish it. The auxiliary structure facilitates bringing the nozzle closer to the fire, improving the extinguishing effect. It also facilitates extinguishing fires at heights, increases the nozzle's spray range, and allows the user to extinguish the fire from a relatively distance, thereby improving safety.

[0025] 2. In this application, during the pulling of the telescopic rod, the fixed column is compressed and retracts. The retraction of the fixed column causes the fixed block to move, and the movement of the fixed block will compress the fixed spring. During the continuous pulling of the telescopic rod, when the fixed column corresponds to another fixed hole, the fixed column is no longer resisted. Under the action of the fixed spring, the fixed column enters the fixed hole, completing the adjustment of the telescopic rod. The adjustment and fixing process of the telescopic rod is simple and quick. Attached Figure Description

[0026] Figure 1 This is a first three-dimensional structural schematic diagram of the fire extinguisher in this application;

[0027] Figure 2 This is a second three-dimensional structural diagram of the fire extinguisher in this application;

[0028] Figure 3 This application Figure 1 Enlarged view of point A in the middle;

[0029] Figure 4 This is a partial sectional view of the original document;

[0030] Figure 5 Is it an application? Figure 1 Enlarged diagram of point B in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Fire extinguisher body; 2. Handle; 3. Nozzle; 4. Pressure gauge; 5. Nozzle; 6. Label; 7. Auxiliary rod; 8. Telescopic rod; 9. Fixing ring one; 10. Fixing shell; 11. Fixing post; 12. Fixing hole; 13. Fixing block; 14. Fixing spring; 15. Fixing ring two; 16. Clip-on spring; 17. Reinforcing strip; 18. Base; 19. Anti-slip mat. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses a high-efficiency dry powder fire extinguisher.

[0035] Reference Figure 1 and Figure 2 A high-efficiency dry powder fire extinguisher includes a fire extinguisher body 1, characterized in that: a handle 2 is installed at the upper end of the fire extinguisher body 1, a nozzle 3 is installed at the lower end of the handle 2, a pressure gauge 4 is installed on the side of the handle 2, a nozzle 5 is fixed at the end of the nozzle 3 away from the fire extinguisher body 1, a label 6 is fixed on the surface of the fire extinguisher body 1, and an auxiliary structure is provided on the nozzle 3.

[0036] When using this fire extinguisher, first remove the safety pin, then use the auxiliary structure to point the nozzle towards the fire. Next, press the handle 2 to spray dry powder from inside the extinguisher body 1, through the nozzle pipe 3 and nozzle 5, and then towards the fire to extinguish it. The auxiliary structure allows the nozzle 5 to be directed towards the fire, improving the extinguishing effect, and allows the user to extinguish the fire from a greater distance, thus increasing safety.

[0037] Reference Figure 2 and Figure 3 The auxiliary structure includes an auxiliary rod 7 mounted on the nozzle 3, a telescopic rod 8 slidably mounted inside the auxiliary rod 7, a fixing ring 9 fixed to the end of the telescopic rod 8, the fixing ring 9 being fixedly connected to the nozzle 3, and a fixing component being provided between the auxiliary rod 7 and the telescopic rod 8.

[0038] The fixing component includes a fixing shell 10 fixed to the fire extinguisher body 1. A fixing post 11 is slidably arranged inside the fixing shell 10. Two fixing holes 12 adapted to the fixing post 11 are opened on the telescopic rod 8. The fixing post 11 slides through the auxiliary rod 7 and extends into the fixing hole 12.

[0039] In addition, a fixing block 13 is fixed on the fixing column 11, and a fixing spring 14 is slidably sleeved on the fixing column 11. The fixing spring 14 is fixedly connected to the fixing block 13 and the fixing shell 10.

[0040] Furthermore, a fixing ring 15 is fixed to the end of the auxiliary rod 7, and the fixing ring 15 is slidably sleeved on the nozzle 3.

[0041] When using this fire extinguisher, pulling the telescopic rod 8 causes the fixed column 11 to retract under pressure. The retraction of the fixed column 11 moves the fixed block 13, which in turn compresses the fixing spring 14. As the telescopic rod 8 is continuously pulled, when the fixed column 11 aligns with another fixing hole 12, it is no longer resisted. Under the action of the fixing spring 14, the fixed column 11 enters the fixing hole 12, completing the adjustment of the telescopic rod 8. The user then holds the end of the auxiliary rod 7 and points the nozzle 5 towards the fire to extinguish it. This auxiliary structure facilitates bringing the nozzle 5 closer to the fire, improving the extinguishing effect and allowing for extinguishing fires at higher locations, increasing the spray range of the nozzle 5. It also allows the user to extinguish the fire from a relatively distant position, thus improving safety.

[0042] Reference Figure 1 and Figure 5 The fire extinguisher body 1 has two symmetrically arranged snap-fit ​​springs 16 fixed on it. The snap-fit ​​springs 16 are arc-shaped plastic springs.

[0043] Several reinforcing strips 17 are fixed on the surface of the snap-fit ​​spring 16, and the surface of the reinforcing strips 17 is rough.

[0044] By inserting the auxiliary rod 7 into the two symmetrically arranged snap-fit ​​spring pieces 16, the auxiliary rod 7 can be restricted. Furthermore, the reinforcing strip 17 inside the snap-fit ​​spring piece 16 can increase the friction between the snap-fit ​​spring piece 16 and the auxiliary rod 7, thereby improving the restriction effect on the auxiliary rod 7.

[0045] Reference Figure 1 and Figure 2 The lower end of the fire extinguisher body 1 is fixed with a base 18, and the lower end of the base 18 is fixed with an anti-slip pad 19.

[0046] During the routine placement of the fire extinguisher, the base 18 can provide some protection for the fire extinguisher body 1, reducing the impact on the bottom of the fire extinguisher, and the anti-slip mat 19 can increase the friction of the bottom of the fire extinguisher, making it stable.

[0047] Working principle: When using this fire extinguisher, separate the auxiliary rod 7 from the elastic clip, pull the telescopic rod 8, causing the fixed column 11 to be compressed and retract. The retraction of the fixed column 11 drives the fixed block 13 to move. The movement of the fixed block 13 will compress the fixed spring 14. During the continuous pulling of the telescopic rod 8, when the fixed column 11 corresponds to another fixed hole 12, the fixed column 11 is no longer resisted. Under the action of the fixed spring 14, the fixed column 11 enters the fixed hole 12, completing the adjustment of the telescopic rod 8. Then, remove the safety bolt. The user holds the end of the auxiliary rod 7, points the nozzle 5 towards the fire point, and presses the handle 2, causing the dry powder to spray out from inside the fire extinguisher body 1, pass through the nozzle 3 and the nozzle 5, and then spray towards the fire point, thereby extinguishing the fire.

Claims

1. A high-efficiency dry powder fire extinguisher, comprising a fire extinguisher body (1), characterized in that: The fire extinguisher body (1) is equipped with a handle (2) at the upper end, a nozzle (3) is installed at the lower end of the handle (2), a pressure gauge (4) is installed on the side of the handle (2), a nozzle (5) is fixed at the end of the nozzle (3) away from the fire extinguisher body (1), a label (6) is fixed on the surface of the fire extinguisher body (1), and an auxiliary structure is provided on the nozzle (3).

2. The high-efficiency dry powder fire extinguisher according to claim 1, characterized in that: The auxiliary structure includes an auxiliary rod (7) set on the nozzle (3), a telescopic rod (8) is slidably arranged inside the auxiliary rod (7), a fixing ring (9) is fixed at the end of the telescopic rod (8), the fixing ring (9) is fixedly connected to the nozzle (3), and a fixing component is provided between the auxiliary rod (7) and the telescopic rod (8).

3. The high-efficiency dry powder fire extinguisher according to claim 2, characterized in that: The fixing assembly includes a fixing shell (10) fixed on the fire extinguisher body (1), a fixing column (11) is slidably arranged inside the fixing shell (10), and two fixing holes (12) adapted to the fixing column (11) are opened on the telescopic rod (8). The fixing column (11) slides through the auxiliary rod (7) and extends into the fixing hole (12).

4. The high-efficiency dry powder fire extinguisher according to claim 3, characterized in that: A fixing block (13) is fixed on the fixing column (11), and a fixing spring (14) is slidably sleeved on the fixing column (11). The fixing spring (14) is fixedly connected to the fixing block (13) and the fixing shell (10).

5. A high-efficiency dry powder fire extinguisher according to claim 2, characterized in that: The auxiliary rod (7) is fixed with a second fixing ring (15) at its end, and the second fixing ring (15) is slidably sleeved on the nozzle (3).

6. The high-efficiency dry powder fire extinguisher according to claim 1, characterized in that: The fire extinguisher body (1) has two symmetrically arranged snap-fit ​​springs (16) fixed on it. The snap-fit ​​springs (16) are arc-shaped plastic springs.

7. A high-efficiency dry powder fire extinguisher according to claim 6, characterized in that: The surface of the snap-fit ​​spring sheet (16) is fixed with several reinforcing strips (17), and the surface of the reinforcing strips (17) is rough.

8. A high-efficiency dry powder fire extinguisher according to claim 1, characterized in that: The fire extinguisher body (1) is fixed with a base plate (18) at the lower end, and an anti-slip pad (19) is fixed with the lower end of the base plate (18).