Portable aerosol fire extinguisher with replaceable fire extinguishing assembly

By designing protective sleeves and tubing structures on aerosol fire extinguishers, the problems of accidental triggering and easy damage to the igniter have been solved, making replacement and maintenance convenient and extending the service life of the equipment.

CN224113154UActive Publication Date: 2026-04-14JIANGXI DETAI FIRE FIGHTING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI DETAI FIRE FIGHTING EQUIP CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing aerosol fire extinguisher triggers are prone to accidental activation, leading to waste. Igniters are easily damaged and inconvenient to maintain and replace, affecting their service life.

Method used

The design incorporates a protective sleeve and a tubing structure. The protective sleeve is fitted onto the outside of the fixed block to protect the pressing head, while the tubing is fitted onto the outside of the power supply end to contain the igniter. This facilitates maintenance and replacement of the connectors. The electrical spark is conducted through the power connector and power cord.

Benefits of technology

It effectively prevents accidental triggering, extends the service life of aerosol fire extinguishers, improves the convenience of maintenance and replacement, and enhances the reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable aerosol fire extinguisher with a replaceable fire extinguishing assembly, which relates to the technical field of portable aerosol fire extinguishers and comprises a gas-soluble fire extinguisher body, and a gas spraying end is arranged at the front end of the gas-soluble fire extinguisher body. The rear end of the gas-soluble fire extinguisher body is fixedly connected with a fixed block, and a protective sleeve is arranged on the outer side of the fixed block; the bottom end of the fixing block is fixedly connected with a power end, a sleeve is arranged on the outer side of the power end, and a pressing head is arranged on the outer side of the sleeve. According to the gas-soluble fire extinguisher, the protective sleeve is arranged and conveniently connected to the outer side of the fixing block in a sleeving mode, so that the pressing head is protected and prevented from being directly pressed, the sleeve can be connected to the outer side of the power end in a sleeving mode through the sleeve, the igniter is arranged on the inner side of the sleeve, ignition work of the gas-soluble fire extinguisher body is facilitated, and the sleeve can be taken down from the outer side of the power end; and a connecting plug arranged on the igniter can be conveniently maintained and replaced, and the using effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of portable aerosol fire extinguisher technology, and in particular to a portable aerosol fire extinguisher with replaceable fire extinguishing components. Background Technology

[0002] Aerosol fire extinguishers are devices that use specific chemical and physical methods to release extinguishing agents in aerosol form to extinguish fires. Because aerosol fire extinguishers are small in size and easy to carry, they are now widely used in various scenarios.

[0003] Utility model patent application number 202321502220.5 discloses a portable aerosol fire extinguisher with replaceable extinguishing components, including an activation component and an extinguishing component. The activation component and the extinguishing component are detachably rotatably connected. The activation component has a first contact and a second contact at its end, and the extinguishing component has a third contact and a fourth contact at its end. The first contact and the second contact are respectively connected to the two ends of the piezoelectric ceramic in the activation component through a circuit. The third contact and the fourth contact are respectively connected to the two ends of the ignition head in the extinguishing component.

[0004] However, the above-mentioned devices still have some drawbacks in actual use. The most obvious one is that the triggers of existing aerosol fire extinguishers are mostly directly exposed to the outside, making them easy to be triggered directly, resulting in the aerosol fire extinguisher being opened directly and wasting resources. In addition, the igniters inside aerosol fire extinguishers are prone to damage after being left unused for a long time, and the wires are also prone to coming loose. Furthermore, it is inconvenient to maintain and replace the internal ignition components of existing aerosol fire extinguishers, which affects the service life of the aerosol fire extinguisher.

[0005] Therefore, it is necessary to invent a portable aerosol fire extinguisher with replaceable extinguishing components to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a portable aerosol fire extinguisher with replaceable extinguishing components. By providing a protective sleeve, it can be easily fitted onto the outside of the fixing block to protect the pressing head from direct pressing. A sleeve can be fitted onto the outside of the power supply end, and an igniter is located on the inside of the sleeve to facilitate the ignition of the aerosol fire extinguisher body. The sleeve can be removed from the outside of the power supply end, facilitating maintenance and replacement of the connector on the igniter, thus improving the effectiveness of use. This addresses the problems mentioned in the background art, where the triggers of existing aerosol fire extinguishers are mostly directly exposed, making them easily triggered and causing direct activation of the aerosol fire extinguisher, resulting in waste. Furthermore, the igniter inside the aerosol fire extinguisher is prone to damage after prolonged storage, and the wires are easily detached. Additionally, existing aerosol fire extinguishers are inconvenient to maintain and replace the internal ignition components, affecting the lifespan of the aerosol fire extinguisher.

[0007] According to one aspect of this disclosure, the following technical solution is provided: a portable aerosol fire extinguisher with replaceable fire extinguishing components, comprising an aerosol fire extinguisher body, wherein the front end of the aerosol fire extinguisher body is provided with a jet end;

[0008] A fixing block is fixedly connected to the rear end of the aerosol fire extinguisher body, and a protective sleeve is provided on the outside of the fixing block.

[0009] A power supply terminal is fixedly connected to the bottom end of the fixing block, a sleeve is provided on the outside of the power supply terminal, and a pressing head is provided on the outside of the sleeve.

[0010] A second fixing bracket is fixedly connected to the inner side of the sleeve. An igniter is provided on the inner side of the second fixing bracket. Power connectors are fixedly connected to both sides of the top of the igniter. A plug is inserted into the inner side of the power connector. A power cord is provided on the outer side of the plug. The plug is electrically connected to the power supply terminal through the power cord.

[0011] According to at least one embodiment of the present disclosure, a portable aerosol fire extinguisher with replaceable extinguishing components is provided, wherein the pressing head is slidably connected to the inner side of the sleeve, a limiting ring is fixedly connected to the end of the pressing head, and a top rod is fixedly connected to the other end of the limiting ring.

[0012] According to at least one embodiment of the present disclosure, a portable aerosol fire extinguisher with replaceable extinguishing components is provided, wherein a first fixing frame is fixedly connected to the inner side of the sleeve, the top rod is slidably connected to the inner side of the first fixing frame, and a spring is provided on the outer side of the top rod, the spring being disposed between a limiting ring and the first fixing frame.

[0013] According to at least one embodiment of the present disclosure, a portable aerosol fire extinguisher with replaceable extinguishing components is provided on one side of the igniter, the igniter end is provided on one side of the top rod, and the igniter end is correspondingly provided to the top rod.

[0014] According to at least one embodiment of the present disclosure, a portable aerosol fire extinguisher with replaceable extinguishing components is provided, wherein the inner side of the protective sleeve is provided with an internal thread, the outer side of the fixing block is provided with an external thread, and the protective sleeve is threadedly connected to the outer side of the fixing block.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] (1) By setting a protective sleeve, this utility model can be easily fitted onto the outside of the fixing block to protect the pressing head and prevent it from being directly pressed. By setting a sleeve, the sleeve can be fitted onto the outside of the power supply end. An igniter is set on the inside of the sleeve to facilitate the ignition of the aerosol fire extinguisher body. The sleeve can be removed from the outside of the power supply end to facilitate the maintenance and replacement of the connectors on the igniter, thus improving the effectiveness of use. Attached Figure Description

[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0018] Figure 1 This is a schematic diagram of the overall structure of a portable aerosol fire extinguisher with replaceable extinguishing components according to one embodiment of the present disclosure.

[0019] Figure 2 This is a schematic diagram of the internal structure of the protective sleeve in a portable aerosol fire extinguisher with replaceable extinguishing components according to one embodiment of the present disclosure.

[0020] Figure 3 for Figure 2 A schematic diagram of the structure at point A in the middle.

[0021] The specific labels in the attached figures are as follows:

[0022] 1. Body of the aerosol fire extinguisher; 11. Jet nozzle;

[0023] 2. Protective sleeve; 21. Internal thread;

[0024] 3. Fixing block; 31. External thread; 32. Power supply terminal;

[0025] 4. Igniter; 41. Ignition terminal; 42. Power connector;

[0026] 5. Press head; 51. Limiting ring; 52. Push rod; 53. Spring;

[0027] 6. Sleeve; 61. First fixing bracket; 62. Second fixing bracket;

[0028] 7. Connector; 71. Power cord. Detailed Implementation

[0029] like Figures 1-3 As shown, a portable aerosol fire extinguisher with replaceable fire extinguishing components disclosed herein may include an aerosol fire extinguisher body 1, and the front end of the aerosol fire extinguisher body 1 is provided with a jet end 11.

[0030] A fixing block 3 is fixedly connected to the rear end of the aerosol fire extinguisher body 1, and a protective sleeve 2 is provided on the outside of the fixing block 3.

[0031] A power supply terminal 32 is fixedly connected to the bottom end of the fixing block 3. A sleeve 6 is provided on the outside of the power supply terminal 32, and a pressing head 5 is provided on the outside of the sleeve 6.

[0032] A second fixing bracket 62 is fixedly connected to the inner side of the sleeve 6. An igniter 4 is provided on the inner side of the second fixing bracket 62. A power connector 42 is fixedly connected to both sides of the top of the igniter 4. A plug 7 is inserted into the inner side of the power connector 42. A power cord 71 is provided on the outer side of the plug 7. The plug 7 is electrically connected to the power terminal 32 through the power cord 71.

[0033] Therefore, a triggering component is provided on the inner side of the power supply end 32, which is an existing technology in aerosol fire extinguishers. It is used to trigger the aerosol to be sprayed out from the nozzle end 11. By setting a protective sleeve 2, the protective sleeve 2 can effectively protect the internal pressing head 5 and prevent accidental activation. By setting a connector 7, the connector 7 can be plugged into the inner side of the power connector 42, which is convenient for replacement of the connector 7. By setting a power cord 71, it is convenient to make electrical connection with the power supply end 32, which is convenient for subsequent triggering work. The sleeve 6 is sleeved on the outer side of the power supply end 32. When it is necessary to inspect or replace the components inside the sleeve 6, the sleeve 6 can be removed from the outer side of the power supply end 32 for maintenance work.

[0034] like Figure 3 As shown, in a preferred embodiment, the pressing head 5 is slidably connected to the inner side of the sleeve 6, and a limit ring 51 is fixedly connected to the end of the pressing head 5, while a push rod 52 is fixedly connected to the other end of the limit ring 51.

[0035] Therefore, by setting a pressing head 5, which is located on the outside of the sleeve 6, and a limiting ring 51 located on the inside of the sleeve 6, and a push rod 52 and a limiting ring 51 fixedly connected to each other, pressing the pressing head 5 can effectively drive the push rod 52 to move.

[0036] like Figure 3 As shown in this disclosure, a first fixing frame 61 is fixedly connected to the inner side of the sleeve 6, and a push rod 52 is slidably connected to the inner side of the first fixing frame 61. A spring 53 is provided on the outer side of the push rod 52, and the spring 53 is disposed between the limiting ring 51 and the first fixing frame 61.

[0037] Therefore, by setting the first fixed frame 61, the push rod 52 slides inside the first fixed frame 61, thereby improving the stability of the movement of the push rod 52. By setting the spring 53, the spring 53 is set between the limiting ring 51 and the first fixed frame 61.

[0038] like Figure 3 As shown, in a preferred embodiment, an ignition end 41 is provided on one side of the igniter 4. The ignition end 41 is located on one side of the push rod 52. A limiting ring 51 and a first fixing bracket 61 are provided between the ignition end 41 and the push rod 52, which can effectively help the pressing head 5 to reset, so that the pressing head 5 is located on the outside of the sleeve 6. When the pressing head 5 is pressed, the limiting ring 51 presses the spring 53, causing the spring 53 to contract. The push rod 52 moves closer to the ignition end 41. After the impact is completed, the pressing head 5 is released, and the pressing head 5 is reset to the outside of the sleeve 6 under the action of the spring 53.

[0039] Therefore, by setting the ignition end 41, pressing the ignition end 41 can effectively drive the igniter 4 to generate an electric spark. The internal structure of the igniter 4 mainly consists of a spring, a hammer, and a piezoelectric ceramic below. Its working principle is that when the ignition end 41 is pressed, the internal spring will be compressed. When the pressure of the spring reaches the critical value, it will drive the hammer to strike the piezoelectric ceramic below rapidly. This violent impact will cause the piezoelectric ceramic to generate a voltage spark instantly. By setting the top rod 52, it is easy to press the ignition end 41. By setting the power connector 42, the plug 7, and the power cord 71, it is easy to conduct the electric spark generated by the igniter 4 to the inside of the power end 32, so as to realize the ignition function.

[0040] like Figure 2 As shown in this disclosure, the inner side of the protective sleeve 2 is provided with an internal thread 21, and the outer side of the fixing block 3 is provided with an external thread 31. The protective sleeve 2 is threadedly connected to the outer side of the fixing block 3.

[0041] Therefore, by providing an internal thread 21 on the inner side of the protective sleeve 2 and an external thread 31 on the outer side of the fixing block 3, the protective sleeve 2 is threadedly connected to the outer side of the fixing block 3, making it easy to fix the protective sleeve 2 to the outer side of the fixing block 3. When needed, the protective sleeve 2 can be quickly unscrewed from the outer side of the fixing block 3 for subsequent use.

[0042] In practical use, the protective sleeve 2 is provided with an internal thread 21 on the inside and an external thread 31 on the outside of the fixing block 3. The protective sleeve 2 is threaded to the outside of the fixing block 3, which makes it easy to fix the protective sleeve 2 to the outside of the fixing block 3. When needed, the protective sleeve 2 can be quickly unscrewed from the outside of the fixing block 3 for subsequent use.

[0043] Pressing the pressing head 5 moves the limiting ring 51 and the top rod 52. The top rod 52 makes it easy to press the ignition end 41. The power connector 42, the plug 7 and the power cord 71 make it easy to conduct the electric spark generated by the igniter 4 to the inside of the power end 32, so as to realize the ignition function.

[0044] When it is necessary to inspect the components inside the sleeve 6, the sleeve 6 can be removed from the outside of the power supply end 32 for maintenance, which facilitates the replacement of the igniter 4, or the connector 7 can be reinserted into the inside of the power connector 42 to improve the service life of the aerosol fire extinguisher body 1.

[0045] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A portable aerosol fire extinguisher with replaceable fire extinguishing components, comprising an aerosol fire extinguisher body (1), wherein the front end of the aerosol fire extinguisher body (1) is provided with a jet end (11); Its features are, The rear end of the aerosol fire extinguisher body (1) is fixedly connected to a fixing block (3), and a protective sleeve (2) is provided on the outside of the fixing block (3); The bottom end of the fixing block (3) is fixedly connected to a power supply end (32), and a sleeve (6) is provided on the outside of the power supply end (32). A pressing head (5) is provided on the outside of the sleeve (6). The inner side of the sleeve (6) is fixedly connected to a second fixing bracket (62), and an igniter (4) is provided on the inner side of the second fixing bracket (62). A power connector (42) is fixedly connected to both sides of the top of the igniter (4). A plug (7) is inserted into the inner side of the power connector (42), and a power cord (71) is provided on the outer side of the plug (7). The plug (7) is electrically connected to the power terminal (32) through the power cord (71).

2. A portable aerosol fire extinguisher with replaceable extinguishing components according to claim 1, characterized in that: The pressing head (5) is slidably connected to the inner side of the sleeve (6), and a limit ring (51) is fixedly connected to the end of the pressing head (5), and a top rod (52) is fixedly connected to the other end of the limit ring (51).

3. A portable aerosol fire extinguisher with replaceable extinguishing components according to claim 2, characterized in that: The inner side of the sleeve (6) is fixedly connected to a first fixing frame (61), the top rod (52) is slidably connected to the inner side of the first fixing frame (61), and a spring (53) is provided on the outer side of the top rod (52). The spring (53) is located between the limiting ring (51) and the first fixing frame (61).

4. A portable aerosol fire extinguisher with replaceable extinguishing components according to claim 3, characterized in that: The igniter (4) has an ignition end (41) on one side, which is located on one side of the top rod (52). The ignition end (41) is correspondingly located to the top rod (52).

5. A portable aerosol fire extinguisher with replaceable extinguishing components according to claim 4, characterized in that: The inner side of the protective sleeve (2) is provided with an internal thread (21), and the outer side of the fixing block (3) is provided with an external thread (31). The protective sleeve (2) is threadedly connected to the outer side of the fixing block (3).

Citation Information

Patent Citations

  • Portable aerosol fire extinguisher with replaceable fire extinguishing assembly

    CN220070555U