Aerosol fire extinguishing equipment for junction box
Aerosol fire extinguishing equipment with fixed and rotating mechanisms installed inside the junction box solves the problems of cumbersome installation and incomplete fire extinguishing, achieving rapid installation and all-round fire extinguishing, improving fire extinguishing efficiency and reliability, and extending the service life of the junction box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-07
AI Technical Summary
Existing fire suppression systems in distribution boxes are cumbersome to install, easily damage the box, fail to extinguish fires completely, have blind spots, and have low fire suppression efficiency and reliability.
A junction box aerosol fire extinguishing device was designed, which includes a fixing mechanism and a rotating mechanism. The suction cup fixing and rotating mechanism enable rapid installation and all-round spraying, avoiding damage to the box body and ensuring that the extinguishing agent evenly covers the inside of the junction box.
It enables rapid installation and all-around fire suppression, reduces the risk of fire reignition, improves fire suppression effectiveness and reliability, and extends the service life of the distribution box.
Smart Images

Figure CN224085871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguishing equipment technology, and in particular to a junction box aerosol fire extinguishing device. Background Technology
[0002] Junction boxes, as key equipment in power and communication systems, are widely used in various locations. The electrical wiring and numerous electronic components inside junction boxes make them highly susceptible to fire due to electrical faults, aging, and wear. If a fire occurs and is not extinguished promptly, it can not only severely damage the equipment inside the junction box and cause power and communication outages, but also potentially lead to a wider safety hazard and significant economic losses.
[0003] Currently, fire suppression systems for junction boxes mostly use fixed fire extinguishing equipment, which has significant drawbacks. In terms of installation, conventional fire extinguishing equipment typically requires bolts for fixing, a cumbersome process that not only requires specialized tools and personnel but may also cause irreversible damage to the junction box, affecting its structural strength and protective performance. Furthermore, disassembly and reinstallation are extremely inconvenient when the junction box location changes or the equipment needs to be replaced, consuming considerable time and manpower.
[0004] In terms of fire extinguishing effectiveness, existing fixed-installation fire extinguishing equipment has fixed nozzle positions, making it difficult to fully cover the complex spatial structure and equipment layout inside the distribution box. Some areas inside the distribution box may become fire extinguishing blind spots, where aerosol extinguishing agents cannot effectively reach, resulting in incomplete fire extinguishing and a high risk of fire reignition. Especially when there are many types of equipment and intricate wiring inside the distribution box, fixed nozzles cannot ensure that the extinguishing agent acts evenly and quickly on the fire source, significantly reducing fire extinguishing efficiency and reliability.
[0005] Therefore, a junction box aerosol fire extinguishing device is needed. Utility Model Content
[0006] The main objective of this invention is to provide a junction box aerosol fire extinguishing device that can effectively solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A junction box aerosol fire extinguishing device includes a junction box body, a controller is fixedly connected to the rear wall of the inner cavity of the junction box body, a fixing mechanism is installed on the front side of the middle right wall of the inner cavity of the junction box body, an aerosol device is fixedly connected to the left end of the fixing mechanism, and a rotating mechanism is fixedly connected to the left side of the outer surface of the aerosol device.
[0009] Preferably, the rotating mechanism includes a fixed column, which is fixedly connected to the middle left side of the outer arc surface of the aerosol device. The inner cavity of the fixed column is rotatably connected to the windmill blade. A manifold is rotatably connected to the middle left end of the fixed column. A fixed rod is fixedly connected to the middle inner cavity of the manifold. The windmill blade is fixedly connected to the right end of the fixed rod.
[0010] Preferably, the inner cavity of the fixed column and the inner cavity of the manifold are connected, and the left part of the manifold is flower-shaped.
[0011] Preferably, the fixing mechanism includes a fixing box, which is installed on the front side of the middle right wall of the inner cavity of the junction box. Suction cups are fixedly connected to the upper and lower parts of the right end of the fixing box. Air holes are opened in the middle of the two suction cups. L-shaped tubes are fixedly connected to the upper and lower sides of the middle right wall of the inner cavity of the fixing box. A T-shaped tube is fixedly connected between the opposite vertical parts of the two L-shaped tubes. A sealing tube is fixedly connected to the front end of the T-shaped tube.
[0012] Preferably, the right ends of the horizontal portions of the two L-shaped tubes are fixedly connected to the left ends of the two air holes and communicate with their inner cavities.
[0013] Preferably, a threaded ring is fixedly connected to the front part of the inner cavity of the sealing tube, a piston disc is slidably connected to the inner cavity of the sealing tube, a screw post is fixedly connected to the front end of the piston disc, and the screw post is threadedly connected to the middle part of the threaded ring.
[0014] Preferably, the front end of the screw post extends through the middle of the front wall of the inner cavity of the fixing box to the outside and is fixedly connected to a turntable.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. In the process of using this utility model, the fixing mechanism can eliminate the need for multiple steps such as drilling, positioning, and tightening when installing the aerosol device. The fixing mechanism only needs to align the internal structure of the device with the appropriate position on the junction box body to quickly fix the device. This fundamentally avoids physical damage to the junction box body, helps maintain the protective performance and structural stability of the junction box, and extends the service life of the junction box.
[0017] 2. During use, the rotating mechanism of this utility model can rotate continuously 360 degrees, allowing the aerosol fire extinguishing agent to be evenly and comprehensively distributed to all spaces of the junction box. This ensures that the fire extinguishing agent reaches the top, bottom, corners, and gaps in the wiring of the box, significantly reducing the possibility of fire reignition and improving the fire extinguishing effect and reliability. 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 schematic cross-sectional view of the aerosol device of this utility model.
[0020] Figure 3 This is a schematic cross-sectional view of the rotating mechanism of this utility model;
[0021] Figure 4 This is a cross-sectional structural diagram of the fixing mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the overall structure of this utility model from another perspective.
[0023] In the diagram: 1. Distribution box body; 2. Controller; 3. Fixing mechanism; 31. Fixing box; 32. Suction cup; 33. Air vent; 34. L-shaped tube; 35. T-shaped tube; 36. Sealing tube; 37. Piston disc; 38. Screw post; 39. Threaded ring; 4. Aerosol device; 5. Rotating mechanism; 51. Fixing post; 52. Manifold; 53. Fixing rod; 54. Fan blade. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] Example 1, as Figures 1 to 5 As shown, a junction box aerosol fire extinguishing device includes a junction box body 1. A controller 2 is fixedly connected to the rear wall of the inner cavity of the junction box body 1. A fixing mechanism 3 is installed on the front side of the middle right wall of the inner cavity of the junction box body 1. An aerosol device 4 is fixedly connected to the left end of the fixing mechanism 3. A rotating mechanism 5 is fixedly connected to the left side of the outer surface of the aerosol device 4.
[0026] In the specific implementation of this utility model, the fixing mechanism 3 is first installed on the side wall of the inner cavity of the junction box body 1. The internal structure of the fixing mechanism 3 is attached to the side wall of the inner cavity of the junction box body 1. Then, the internal structure of the fixing mechanism 3 is rotated to fix the fixing mechanism 3 to the side wall of the junction box body 1. At the same time, the aerosol device 4 and the rotating mechanism 5 are installed in the inner cavity of the junction box body 1. When the controller 2 is running for a long time, it may encounter certain factors that cause a sudden fire source. At the same time, when the internal structure of the aerosol device 4 senses the fire source, the heating wire inside the aerosol device 4 heats up rapidly, generating high temperature, triggering the fire extinguishing agent to undergo a chemical reaction, generating a large amount of aerosol fire extinguishing agent that is sprayed out from the inside of the rotating mechanism 5. At the same time as the aerosol fire extinguishing agent is sprayed out, the internal structure of the rotating mechanism 5 is driven to rotate, causing the internal structure of the rotating mechanism 5 to rotate and spray the aerosol fire extinguishing agent out of the inner cavity of the junction box body 1, spreading it in all directions to all spaces inside the junction box body 1, greatly reducing the possibility of fire reignition and improving the fire extinguishing effect and reliability.
[0027] Example 2: In order to achieve the goal of installing the aerosol device 4 inside the junction box body 1 without drilling, refer to... Figure 2 and Figure 4 In this solution, the fixing mechanism 3 includes a fixing box 31, which is installed on the front side of the middle right wall of the inner cavity of the junction box body 1. Suction cups 32 are fixedly connected to the upper and lower parts of the right end of the fixing box 31. Air holes 33 are opened in the middle of the two suction cups 32. L-shaped tubes 34 are fixedly connected to the upper and lower sides of the middle right wall of the inner cavity of the fixing box 31. A three-way tube 35 is fixedly connected between the vertical opposite surfaces of the two L-shaped tubes 34. A sealing tube 36 is fixedly connected to the front end of the three-way tube 35.
[0028] Furthermore, the right ends of the horizontal portions of the two L-shaped tubes 34 are respectively fixedly connected to the left ends of the two air holes 33 and communicate with their inner cavities.
[0029] In the above process, firstly, by attaching the right end of the fixing box 31 to the inner wall of the junction box body 1, the two suction cups 32 are tightly attached to the inner wall of the junction box body 1, thus sealing the inside of the two suction cups 32. Then, by rotating the internal structure of the sealing tube 36, the air pressure inside the two L-shaped tubes 34 is reduced. With the two L-shaped tubes 34 connected to the inner cavity of the suction cups 32, a pressure difference is formed between the inside of the suction cups 32 and the outside atmosphere. Since the outside atmospheric pressure is much higher than the air pressure inside the suction cups 32, under the action of the strong pressure difference, the suction cups 32 are tightly attached to the inner wall of the junction box body 1, ensuring that there will be no loosening or displacement during the fire extinguishing process.
[0030] Specifically, in order to achieve the goal of making the air pressure inside the two L-shaped tubes 34 lower than the external air pressure, refer to Figure 4 In this solution, a threaded ring 39 is fixedly connected to the front part of the inner cavity of the sealing tube 36, a piston disc 37 is slidably connected to the inner cavity of the sealing tube 36, a screw post 38 is fixedly connected to the front end of the piston disc 37, and the screw post 38 is threadedly connected to the middle part of the threaded ring 39.
[0031] Furthermore, the front end of the screw post 38 extends through the middle of the front wall of the inner cavity of the fixing box 31 to the outside and is fixedly connected to a turntable.
[0032] In the above process, the rotating disk at the front end of the rotating fixed box 31 first drives the screw post 38 to rotate on the inner surface of the threaded ring 39. At the same time, under the action of the threaded ring 39, the screw post 38 rotates and moves forward in the inner cavity of the sealing tube 36, which in turn drives the piston disc 37 to move forward in the inner cavity of the sealing tube 36, thereby increasing the volume inside the sealing tube 36. According to the gas state equation, when the temperature remains constant, the gas volume increases and the pressure decreases. Therefore, the air pressure inside the sealing tube 36 decreases accordingly, so that the air pressure inside the two L-shaped tubes 34 is less than the external air pressure.
[0033] Specifically, in order to achieve the purpose of rotary spraying, refer to Figure 2 and Figure 3 In this scheme, the rotating mechanism 5 includes a fixed column 51, which is fixedly connected to the middle left side of the outer arc surface of the aerosol device 4. The inner cavity of the fixed column 51 is rotatably connected to the windmill blade 54. The middle left end of the fixed column 51 is rotatably connected to a manifold 52. The middle inner cavity of the manifold 52 is fixedly connected to a fixed rod 53. The right end of the fixed rod 53 is fixedly connected to the windmill blade 54.
[0034] Furthermore, the inner cavity of the fixed column 51 is connected to the inner cavity of the manifold 52, and the left part of the manifold 52 is flower-shaped.
[0035] In the above process, the internal structure of the aerosol device 4 detects the rise of the fire source and causes the aerosol extinguishing agent to be sprayed out of the internal structure of the aerosol device 4 and enter the inner cavity of the fixed column 51. The gas comes into contact with the surface of the windmill blade 54, and the shape of the surface of the windmill blade 54 causes the windmill blade 54 to rotate. At the same time as the windmill blade 54 rotates, it drives the fixed rod 53 to rotate, which in turn drives the manifold 52 to rotate. Simultaneously, the aerosol extinguishing agent is sprayed out from several ports on the left side of the manifold 52.
[0036] It should be noted that the specific installation method, circuit connection method and control method of the aerosol device 4 used in this utility model are all conventional designs, and will not be described in detail in this utility model.
[0037] The working principle of this utility model is as follows: First, the fixing mechanism 3 is installed on the side wall of the inner cavity of the junction box body 1. The internal structure of the fixing mechanism 3 is attached to the side wall of the inner cavity of the junction box body 1. Then, the internal structure of the fixing mechanism 3 is rotated to fix the fixing mechanism 3 on the side wall of the junction box body 1. At the same time, the aerosol device 4 and the rotating mechanism 5 are installed in the inner cavity of the junction box body 1. When the controller 2 is running for a long time, it may encounter certain factors that cause a sudden fire source. At the same time, when the internal structure of the aerosol device 4 senses the fire source, the heating wire inside the aerosol device 4 heats up rapidly, generating high temperature, triggering the fire extinguishing agent to undergo a chemical reaction, generating a large amount of aerosol fire extinguishing agent that is sprayed out from the inside of the rotating mechanism 5. At the same time as the aerosol fire extinguishing agent is sprayed out, the internal structure of the rotating mechanism 5 is driven to rotate, causing the internal structure of the rotating mechanism 5 to rotate and spray the aerosol fire extinguishing agent out of the inner cavity of the junction box body 1, spreading it in all directions to all spaces inside the junction box body 1, greatly reducing the possibility of fire reignition and improving the fire extinguishing effect and reliability.
[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A junction box aerosol fire extinguishing device, comprising a junction box body (1), characterized in that: A controller (2) is fixedly connected to the rear wall of the inner cavity of the junction box body (1). A fixing mechanism (3) is installed on the front side of the middle of the right wall of the inner cavity of the junction box body (1). An aerosol device (4) is fixedly connected to the left end of the fixing mechanism (3). A rotating mechanism (5) is fixedly connected to the left side of the outer surface of the aerosol device (4).
2. The junction box aerosol fire extinguishing device according to claim 1, characterized in that: The rotating mechanism (5) includes a fixed column (51), which is fixedly connected to the middle of the left side of the outer arc surface of the aerosol device (4). The inner cavity of the fixed column (51) is rotatably connected to the windmill blade (54). The middle of the left end of the fixed column (51) is rotatably connected to a manifold (52). The middle of the inner cavity of the manifold (52) is fixedly connected to a fixed rod (53). The right end of the fixed rod (53) is fixedly connected to the windmill blade (54).
3. The junction box aerosol fire extinguishing device according to claim 2, characterized in that: The inner cavity of the fixed column (51) is connected to the inner cavity of the manifold (52), and the left side of the manifold (52) is flower-shaped.
4. The junction box aerosol fire extinguishing device according to claim 1, characterized in that: The fixing mechanism (3) includes a fixing box (31), which is installed on the front side of the middle right wall of the inner cavity of the junction box body (1). The upper and lower right ends of the fixing box (31) are fixedly connected to suction cups (32). The middle of the two suction cups (32) is provided with air holes (33). The upper and lower sides of the middle right wall of the inner cavity of the fixing box (31) are fixedly connected to L-shaped tubes (34). The vertical parts of the two L-shaped tubes (34) are fixedly connected to a three-way tube (35) between their opposite faces. The front end of the three-way tube (35) is fixedly connected to a sealing tube (36).
5. The junction box aerosol fire extinguishing device according to claim 4, characterized in that: The right ends of the horizontal portions of the two L-shaped tubes (34) are fixedly connected to the left ends of the two air holes (33) and communicate with their inner cavities.
6. The junction box aerosol fire extinguishing device according to claim 4, characterized in that: A threaded ring (39) is fixedly connected to the front of the inner cavity of the sealing tube (36), and a piston disc (37) is slidably connected to the inner cavity of the sealing tube (36). A screw post (38) is fixedly connected to the front end of the piston disc (37), and the screw post (38) is threadedly connected to the middle of the threaded ring (39).
7. The junction box aerosol fire extinguishing device according to claim 6, characterized in that: The front end of the screw post (38) penetrates the middle of the front wall of the inner cavity of the fixing box (31) and extends to the outside. A turntable is fixedly connected to the front end of the screw post (38).