An explosion-proof distribution box
By introducing an electric telescopic pole and fire extinguisher system into the distribution box, automatic fire suppression is achieved in the event of electrical overload, solving the problem of fire or explosion caused by temperature rise and ensuring equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LANTENG ELECTRIC CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-16
AI Technical Summary
When the power consumption of existing distribution boxes is too high, the temperature of the wires rises, causing the insulation layer of the wires to burn, which may lead to fire or explosion.
An explosion-proof distribution box was designed, equipped with an electric telescopic rod, electric valves and fire extinguisher tank. It automatically sprays dry powder to extinguish fires by sensing high temperatures through a temperature sensor, thus preventing fires or explosions.
It effectively prevents fires or explosions caused by electrical overload, ensures equipment safety, has automatic fire extinguishing function, and provides physical protection.
Smart Images

Figure CN224367377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box technology, specifically an explosion-proof distribution box. Background Technology
[0002] Distribution boxes are electrical equipment characterized by their small size, easy installation, special technical performance, fixed location, unique configuration functions, lack of site restrictions, wide application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. They are the control center that directs the rational distribution of electrical energy among various components in the power supply line, the control link that reliably receives the upstream power supply and correctly feeds out the load power, and the key to obtaining user satisfaction with the power supply quality.
[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:
[0004] When the power consumption of existing distribution boxes is too high and the actual current exceeds the safe power, the wires will be severely overloaded, causing the wire temperature to rise continuously. If the load is too heavy, the temperature will continue to rise, which may cause the wire insulation to burn, resulting in a fire or explosion.
[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides an explosion-proof distribution box, which solves the problem of fire or explosion caused by the burning of the insulation layer of the wires inside the equipment due to the overload of power consumption.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] An explosion-proof distribution box includes a distribution box body and a fixing box fixed to the bottom of the distribution box body. A base plate is fixedly installed inside the bottom of the distribution box body. An opening is opened through the inside of the base plate. Sealing plates are movably installed on both sides of the bottom of the opening. An electric telescopic rod is fixedly installed at the bottom of the sealing plate and fixedly connected to the bottom of the base plate.
[0009] The fixed box contains two sets of fire extinguisher canisters. An electric valve is fixedly installed at the outlet of each fire extinguisher canister, and a connecting pipe is fixedly installed at the outlet of each fire extinguisher canister. A nozzle is fixedly installed at the top of the connecting pipe.
[0010] Preferably, the bottom of the base plate has a first sliding groove at the front and rear ends on both sides, and a first slider that is fixedly connected to the sealing plate is slidably installed inside the first sliding groove.
[0011] Preferably, a first sealing door is rotatably installed at the front end of the main body of the distribution box, a second sealing door is rotatably installed at the front end of the fixed box, and the electric telescopic rod, electric valve and temperature sensor inside the main body of the distribution box are electrically connected.
[0012] Preferably, a fixing frame is fixedly installed on the inner side of the first sealing door, a dustproof net is fixedly installed inside the air outlet at the front end of the first sealing door, and a cooling fan is fixedly connected inside the fixing frame.
[0013] Preferably, a buckle is movably installed on the top of the fire extinguisher tank, and second sliding grooves are provided on both sides of the bottom of the fixing box, and the second sliding grooves are staggered. A second slider that is fixedly connected to the bottom of the buckle is slidably installed inside the second sliding groove.
[0014] Preferably, an explosion-proof shell is fixedly installed on the outside of the main body of the distribution box, and reinforcing rods are evenly fixedly installed between the main body of the distribution box and the explosion-proof shell.
[0015] Compared with the prior art, this utility model provides an explosion-proof distribution box with the following beneficial effects: When the power consumption of the equipment is too high and overloaded, causing internal spontaneous combustion, the electric telescopic rod automatically retracts and opens, thereby driving the sealing plate to move to both sides, opening the opening. The electric valve automatically opens, allowing the dry powder inside the fire extinguisher tank to be sprayed into the interior of the distribution box body through the connecting pipe and nozzle, extinguishing the fire inside the distribution box body. This avoids the situation where the temperature rises when the power consumption of the equipment is overloaded, causing the insulation layer of the wires inside the equipment to burn, resulting in a fire or explosion. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present utility model;
[0017] Figure 2 This is a frontal view of the disassembled structure of the main body of the distribution box of this utility model;
[0018] Figure 3 This is a side view of the disassembled structure of the fixing box of this utility model;
[0019] Figure 4 This is a front-view sectional view of the explosion-proof housing of this utility model;
[0020] Figure 5 This is a schematic diagram of the rear view of the first sealing door structure of this utility model.
[0021] In the diagram: 1. Distribution box body; 101. Base plate; 102. Opening; 103. Sealing plate; 104. Electric telescopic rod; 105. First slide rail; 106. First slider; 107. First sealing door; 108. Fixing frame; 109. Dustproof net; 110. Cooling fan; 2. Fixing box; 201. Second sealing door; 202. Fire extinguisher tank; 203. Electric valve; 204. Connecting pipe; 205. Nozzle; 206. Buckle; 207. Second slide rail; 208. Second slider; 3. Explosion-proof housing; 301. Reinforcing rod. Detailed Implementation
[0022] 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.
[0023] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an explosion-proof distribution box.
[0024] Please see Figures 1-5 An explosion-proof distribution box includes a distribution box body 1 and a fixing box 2 fixed to the bottom of the distribution box body 1. A base plate 101 is fixedly installed inside the bottom of the distribution box body 1. An opening 102 is opened through the inside of the base plate 101. Sealing plates 103 are movably installed on both sides of the bottom of the opening 102. An electric telescopic rod 104 fixedly connected to the bottom of the base plate 101 is fixedly installed at the bottom of the sealing plate 103.
[0025] The fire extinguisher tank 202 is installed inside the fixed box 2. There are two sets of fire extinguisher tanks 202. An electric valve 203 is fixedly installed at the outlet of the fire extinguisher tank 202. A connecting pipe 204 is fixedly installed at the outlet of the fire extinguisher tank 202. A nozzle 205 is fixedly installed at the top of the connecting pipe 204.
[0026] With the above-described structural design, when the power consumption of the explosion-proof distribution box is overloaded during use, causing the insulation wires of the equipment inside the distribution box body 1 to spontaneously combust, the temperature sensor inside the distribution box body 1 senses the high temperature of the flame and transmits a signal to the electric telescopic rod 104 and the electric valve 203. At this time, the output end of the electric telescopic rod 104 retracts, causing the sealing plate 103 to move to both sides, opening the opening 102. Subsequently, the switch of the electric valve 203 automatically opens, and the dry powder inside the fire extinguisher tank 202 is sprayed into the interior of the distribution box body 1 through the connecting pipe 204 and the nozzle 205 to extinguish the fire. This avoids the problem of fire or explosion caused by the temperature rise when the equipment is overloaded and the insulation layer of the wires inside the equipment burns.
[0027] Furthermore, the bottom of the base plate 101 has first sliding grooves 105 on its front and rear ends, and a first slider 106 fixedly connected to the sealing plate 103 is slidably installed inside the first sliding grooves 105. When the sealing plate 103 moves to both sides at the bottom of the base plate 101, the first slider 106 slides inside the first sliding grooves 105, thereby making the movement of the sealing plate 103 more stable.
[0028] Furthermore, a first sealing door 107 is rotatably installed at the front end of the main body 1 of the distribution box. A fixing frame 108 is fixedly installed inside the first sealing door 107. A dustproof net 109 is fixedly installed inside the air outlet at the front end of the first sealing door 107. A cooling fan 110 is fixedly connected inside the fixing frame 108. A second sealing door 201 is rotatably installed at the front end of the fixing box 2. The electric telescopic rod 104, the electric valve 203, and the temperature sensor inside the main body 1 of the distribution box are electrically connected. The cooling fan 110 dissipates heat from the inside of the main body 1 of the distribution box. The dustproof net 109 prevents external dust from entering the main body 1 of the distribution box and affecting the heat dissipation of electronic components. Opening the second sealing door 201 facilitates the disassembly and assembly of the fire extinguisher tank 202.
[0029] Furthermore, a buckle 206 is movably installed on the top of the fire extinguisher canister 202, and second sliding grooves 207 are provided on both sides of the bottom of the fixing box 2. The second sliding grooves 207 are staggered, and a second slider 208, which is fixedly connected to the bottom of the buckle 206, is slidably installed inside the second sliding groove 207. When the fire extinguisher canister 202 is installed inside the fixing box 2, the second slider 208 slides inside the second sliding groove 207, causing the buckle 206 to slide towards the center position, thereby fixing the fire extinguisher canister 202 in place and facilitating the installation of the fire extinguisher canister 202 by personnel.
[0030] Furthermore, an explosion-proof shell 3 is fixedly installed on the outside of the main body 1 of the distribution box, and reinforcing rods 301 are evenly fixedly installed between the main body 1 of the distribution box and the explosion-proof shell 3. In the event of spontaneous combustion and explosion inside the main body 1 of the distribution box, the explosion-proof shell 3 and the reinforcing rods 301 reinforce and protect the outside of the main body 1 of the distribution box, preventing the main body 1 of the distribution box from exploding due to the impact force of the explosion and potentially causing injury to nearby personnel.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An explosion-proof distribution box, comprising a distribution box body (1) and a fixing box (2) fixed to the bottom of the distribution box body (1), characterized in that: A base plate (101) is fixedly installed at the bottom inside the main body (1) of the distribution box. An opening (102) is opened through the inside of the base plate (101). Sealing plates (103) are movably installed on both sides of the bottom of the opening (102). An electric telescopic rod (104) fixedly connected to the bottom of the base plate (101) is fixedly installed at the bottom of the sealing plate (103). The fixed box (2) is equipped with a fire extinguisher canister (202) inside, and there are two sets of fire extinguisher canisters (202). An electric valve (203) is fixedly installed at the outlet of the fire extinguisher canister (202), and a connecting pipe (204) is fixedly installed at the outlet of the fire extinguisher canister (202). A nozzle (205) is fixedly installed at the top of the connecting pipe (204).
2. The explosion-proof distribution box according to claim 1, characterized in that: The bottom of the base plate (101) has a first sliding groove (105) on the front and rear ends on both sides. A first slider (106) that is fixedly connected to the sealing plate (103) is slidably installed inside the first sliding groove (105).
3. The explosion-proof distribution box according to claim 1, characterized in that: The front end of the main body (1) of the distribution box is rotatably equipped with a first sealing door (107), and the front end of the fixed box (2) is rotatably equipped with a second sealing door (201). The electric telescopic rod (104), the electric valve (203) and the temperature sensor inside the main body (1) of the distribution box are electrically connected.
4. The explosion-proof distribution box according to claim 3, characterized in that: A fixed frame (108) is fixedly installed on the inner side of the first sealing door (107), a dustproof net (109) is fixedly installed inside the air outlet at the front end of the first sealing door (107), and a cooling fan (110) is fixedly connected inside the fixed frame (108).
5. The explosion-proof distribution box according to claim 1, characterized in that: The top of the fire extinguisher tank (202) is movably fitted with a buckle (206), and the bottom of the fixing box (2) is provided with a second sliding groove (207) on both sides, and the second sliding groove (207) is staggered. The second sliding groove (207) is slidably fitted with a second slider (208) which is fixedly connected to the bottom of the buckle (206).
6. The explosion-proof distribution box according to claim 1, characterized in that: An explosion-proof housing (3) is fixedly installed on the outside of the main body (1) of the distribution box, and reinforcing rods (301) are evenly fixed between the main body (1) of the distribution box and the explosion-proof housing (3).