Portable forest fire extinguishing device

By introducing an adjustable waist support mechanism and strap fixation design into the portable forest fire extinguishing device, the problem of the inability to personalize the carrying components has been solved, achieving waist comfort and stability, and improving the efficiency and safety of fire extinguishing operations.

CN224193967UActive Publication Date: 2026-05-05范志伟
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
范志伟
Filing Date
2025-04-08
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The carrying straps of existing portable wind-powered fire extinguishers cannot be customized to fit the operator's lumbar curve, resulting in concentrated pressure on the waist, poor comfort and stability, and significant fatigue, especially during prolonged use.

Method used

A portable forest fire extinguishing device was designed, which includes a waist support mechanism and an adjustment component. The adjustable curvature of the arc-shaped elastic plate is made to fit closely to the waist through a combination of slider and bidirectional threaded rod, and the stability is ensured by the binding strap fixing device.

Benefits of technology

It effectively distributes the weight of the waist, reduces fatigue during prolonged use, improves breathability and stability, and ensures the safety and efficiency of firefighting operations.

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Abstract

The utility model relates to the technical field of forest fire extinguishing, and particularly discloses a portable forest fire extinguishing device, which comprises a pneumatic extinguisher mechanism, a fire extinguishing system, a fire extinguishing system and a fire extinguishing system, the waist supporting mechanism comprises a waist supporting assembly which is clamped and embedded on the back bearing assembly in a sliding mode. By rotating a handle, a two-way threaded rod is driven to rotate, so that two sliding blocks move in the opposite directions that the sliding blocks get close to each other or get away from each other along guide rods, the radian of an arc-shaped elastic plate is adjusted, and the arc-shaped elastic plate is tightly attached to the waist; the adjustable design not only can adapt to waist curves of different users, but also can effectively disperse the weight and relieve the pressure of a specific area of the waist, particularly, the fatigue feeling can be remarkably reduced during long-time bearing, the air permeability is further improved through the air holes in the arc-shaped elastic plate, and the stuffiness feeling caused by long-time use is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of forest fire fighting technology, specifically a portable forest fire fighting device. Background Technology

[0002] Forest fires are characterized by their suddenness, destructiveness, and difficulty in handling and rescue, making forest fire fighting crucial. Wind-powered fire extinguishers, as one of the core equipment for forest fire fighting, are widely used due to their efficient wind-powered combustion-blocking characteristics.

[0003] Wind-powered fire extinguishers are typically designed for carrying on the back. During prolonged use, the weight of the equipment is concentrated on the waist, which can easily lead to uneven pressure on the waist. Existing technology improves comfort by adding padding to the carrying components. However, the padding can only provide limited cushioning and cannot be personalized to the operator's waist curve. When operators of different body types use the same equipment, it is difficult to achieve a good fit, resulting in the pressure on the waist still being concentrated in a specific area. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a portable forest fire extinguishing device. This addresses the issue that existing technologies, which improve comfort by adding padding to the back support, only provide limited cushioning and cannot be customized to the operator's lumbar curve. Consequently, operators of different body types cannot achieve a good fit when using the same device, resulting in lumbar pressure still being concentrated in specific areas.

[0005] A portable forest fire extinguishing device includes: a wind-powered fire extinguisher mechanism, including a wind-powered fire extinguisher body and a carrying component fixedly installed on the wind-powered fire extinguisher body;

[0006] The lumbar support mechanism includes a lumbar support component that is slidably fitted onto the back support component, and an adjustment component for adjusting the curvature of the lumbar support component, the adjustment component being mounted on the back support component.

[0007] Preferably, the carrying assembly includes a support plate, a back plate is fixedly connected to one side of the top of the support plate, the wind-powered fire extinguisher body is fixedly connected to the top of the support plate, and a carrying strap is fixedly connected to the back plate.

[0008] Preferably, the waist support assembly includes a set of sliders that are slidably embedded in the back plate. One end of the set of sliders extends to the outside of the back plate and is fixedly connected to an arc-shaped elastic plate. The arc-shaped elastic plate has several ventilation holes.

[0009] Preferably, the adjustment assembly includes a bidirectional threaded rod and a set of guide rods. The bidirectional threaded rod is fixedly connected to the inside of the back plate by a bearing. One end of the bidirectional threaded rod extends to the outside of the back plate and is fixedly connected to a handle. The set of guide rods is fixedly connected to the inside of the back plate.

[0010] Preferably, a set of sliders is slidably connected to the outside of a set of guide rods, and the middle position of the set of sliders is threadedly connected to the outside of a bidirectional threaded rod.

[0011] Preferably, the carrying assembly further includes a first strap and a second strap fixedly connected to the back panel. A male buckle is fixedly connected to the first strap, and a female buckle is fixedly connected to the second strap. The male buckle can be snapped into the female buckle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model uses a rotating handle to drive the bidirectional threaded rod to rotate, causing two sliders to move in opposite directions along the guide rod, thus adjusting the curvature of the arc-shaped elastic plate to fit snugly against the waist. This adjustable design can not only adapt to the waist curves of different users, but also effectively distribute weight and reduce pressure on specific areas of the waist. Especially when carrying for a long time, it can significantly reduce fatigue. The ventilation holes on the arc-shaped elastic plate further improve breathability and reduce the stuffiness during long-term use.

[0014] 2. In this utility model, strap one and strap two are wrapped around the waist. After finding a suitable wearing position, the male buckle is aligned with the female buckle, and the two are gently pressed together to lock them together, thereby firmly fixing the equipment to the waist. The locked male and female buckles can firmly fix the equipment and prevent the equipment from shifting or shaking during use, ensuring the stability and safety of the user during firefighting operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the wind-powered fire extinguisher mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the waist support mechanism of this utility model.

[0019] In the diagram: 1. Wind-powered fire extinguisher mechanism; 11. Wind-powered fire extinguisher body; 12. Carrying assembly; 121. Support plate; 122. Back plate; 123. Carrying strap; 124. Strap 1; 125. Strap 2; 126. Male buckle; 127. Female buckle; 2. Waist support mechanism; 21. Waist support assembly; 211. Slider; 212. Arc-shaped elastic plate; 213. Vent hole; 22. Adjustment assembly; 221. Two-way threaded rod; 222. Guide rod; 223. Handle. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 4 As shown:

[0022] Example 1: This utility model provides a portable forest fire extinguishing device, including: a wind-powered fire extinguishing mechanism 1, including a wind-powered fire extinguishing body 11, and a carrying component 12 fixedly installed on the wind-powered fire extinguishing body 11;

[0023] The lumbar support mechanism 2 includes a lumbar support component 21 that is slidably embedded in the back support component 12, and an adjustment component 22 for adjusting the curvature of the lumbar support component 21, the adjustment component 22 being mounted on the back support component 12.

[0024] Specifically, the carrying assembly 12 includes a support plate 121, a back plate 122 is fixedly connected to one side of the top of the support plate 121, the wind-powered fire extinguisher body 11 is fixedly connected to the top of the support plate 121, and a carrying strap 123 is fixedly connected to the back plate 122.

[0025] Specifically, the lumbar support component 21 includes a set of sliders 211 that are slidably embedded in the back plate 122. One end of the set of sliders 211 extends to the outside of the back plate 122 and is fixedly connected to an arc-shaped elastic plate 212. The arc-shaped elastic plate 212 has several ventilation holes 213.

[0026] Specifically, the adjustment assembly 22 includes a bidirectional threaded rod 221 and a set of guide rods 222. The bidirectional threaded rod 221 is fixedly connected to the inside of the back plate 122 by a bearing. One end of the bidirectional threaded rod 221 extends to the outside of the back plate 122 and is fixedly connected to a handle 223. The set of guide rods 222 is fixedly connected to the inside of the back plate 122.

[0027] Specifically, a set of sliders 211 are slidably connected to the outside of a set of guide rods 222, and the middle position of a set of sliders 211 is threadedly connected to the outside of a bidirectional threaded rod 221.

[0028] As can be seen from the above, when using the device, first put the wind-powered fire extinguisher on your back and adjust the length of the shoulder strap 123 to ensure that the device fits snugly against the body and remains stable for easy carrying. The user can rotate the handle 223 according to their own waistline, driving the bidirectional threaded rod 221 to rotate, causing the two sliders 211 to move in opposite directions along the guide rod 222, thus adjusting the curvature of the arc-shaped elastic plate 212 to fit snugly against the waist. This adjustable design not only adapts to the waistline of different users but also effectively distributes weight, reducing pressure on specific areas of the waist, especially during long-term carrying, significantly reducing fatigue. The ventilation holes 213 on the curved elastic plate 212 further improve breathability and reduce the stuffiness during long-term use. This design is especially important in hot fire-fighting scenes because it helps keep the user dry and comfortable, thereby improving work efficiency and safety. By starting the engine of the wind-powered fire extinguisher body 11 and adjusting the wind output to ensure that the fan generates a sufficient high-speed airflow, the nozzle is aimed at the fire source, maintaining an appropriate distance, usually 1-2 meters. The fan is started to generate a high-speed airflow to disperse the flames and burning materials, cut off the oxygen supply to the fire source, and move flexibly according to the direction of fire spread to extinguish different areas.

[0029] Example 2: This example is basically the same as the previous example, except that the carrying component 12 also includes a first strap 124 and a second strap 125 fixedly connected to the back plate 122. A male buckle 126 is fixedly connected to the first strap 124, and a female buckle 127 is fixedly connected to the second strap 125. The male buckle 126 can be snapped into the female buckle 127.

[0030] As can be seen above, after wrapping strap 124 and strap 225 around the waist and finding a suitable wearing position, align the male buckle 126 with the female buckle 127 and gently press them together to secure the equipment to the waist. The secured male and female buckles can firmly fix the equipment and prevent it from shifting or shaking during use, ensuring the stability and safety of the user during firefighting operations.

[0031] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0032] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0037] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A portable forest fire extinguishing device, characterized in that, include: The wind-powered fire extinguisher mechanism (1) includes a wind-powered fire extinguisher body (11) and a carrying assembly (12) fixedly installed on the wind-powered fire extinguisher body (11); The lumbar support mechanism (2) includes a lumbar support component (21) that is slidably embedded in the back support component (12) and an adjustment component (22) for adjusting the curvature of the lumbar support component (21), the adjustment component (22) being mounted on the back support component (12).

2. The portable forest fire extinguishing device as described in claim 1, characterized in that, The carrying assembly (12) includes a support plate (121), a back plate (122) is fixedly connected to one side of the top of the support plate (121), the wind-powered fire extinguisher body (11) is fixedly connected to the top of the support plate (121), and a carrying strap (123) is fixedly connected to the back plate (122).

3. The portable forest fire extinguishing device as described in claim 2, characterized in that, The waist support assembly (21) includes a set of sliders (211) that are slidably embedded in the back plate (122). One end of the set of sliders (211) extends to the outside of the back plate (122) and is fixedly connected to an arc-shaped elastic plate (212). The arc-shaped elastic plate (212) has several ventilation holes (213).

4. The portable forest fire extinguishing device as described in claim 3, characterized in that, The adjustment assembly (22) includes a bidirectional threaded rod (221) and a set of guide rods (222). The bidirectional threaded rod (221) is fixedly connected to the inside of the back plate (122) by a bearing. One end of the bidirectional threaded rod (221) extends to the outside of the back plate (122) and is fixedly connected to a handle (223). The set of guide rods (222) is fixedly connected to the inside of the back plate (122).

5. The portable forest fire extinguishing device as described in claim 4, characterized in that, A set of sliders (211) is slidably connected to the outside of a set of guide rods (222), and the middle position of the set of sliders (211) is threadedly connected to the outside of a bidirectional threaded rod (221).

6. The portable forest fire extinguishing device as described in claim 5, characterized in that, The carrying assembly (12) also includes a first strap (124) and a second strap (125) fixedly connected to the back panel (122). A male buckle (126) is fixedly connected to the first strap (124), and a female buckle (127) is fixedly connected to the second strap (125). The male buckle (126) can be snapped into the female buckle (127).