Explosion-proof distribution box device with double-sealing structure
By employing a double-sealing structure in the explosion-proof distribution box, combining sealing components and explosion-proof components, the problem of reduced sealing performance is solved, effectively blocking flammable and explosive substances and conducting static electricity, thereby improving the safety and reliability of the distribution box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI KELANG MECHANICAL & ELECTRICAL TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
The sealing performance of existing explosion-proof distribution boxes is easily compromised by flammable gases and moisture after prolonged use, affecting their safety and reliability.
It adopts a dual-sealing structure, including a sealing component and an explosion-proof component. It utilizes a combination design of sealing strips, metal sealing gaskets and rubber strips, combined with the conductivity of metal materials, to enhance the sealing effect. The explosion-proof component clamps and seals the cable to prevent gas and dust from entering.
It improves the sealing performance and explosion-proof capability of the distribution box, prevents static electricity accumulation, enhances the barrier effect against flammable and explosive substances, and maintains long-term performance stability and safety.
Smart Images

Figure CN224138552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box technology, specifically to an explosion-proof distribution box device with a double sealing structure. Background Technology
[0002] A distribution box is a device specifically designed for power distribution. It integrates switching facilities, testing instruments, maintenance appliances, and auxiliary facilities. It is assembled in a closed or semi-closed metal cabinet or on a panel according to electrical wiring standards. During operation, these devices can connect or disconnect the circuit through manual or automatic switches, and in the event of a malfunction or failure to operate normally, they can cut off the circuit or issue an alarm through electrical means.
[0003] In order to ensure the safe operation of the internal electrical equipment, the explosion-proof distribution box usually needs to be sealed. However, most explosion-proof distribution boxes are sealed with gaskets. After long-term use, the sealing performance of gaskets can be affected, making the explosion-proof distribution box susceptible to intrusion of flammable gases and moisture, which in turn affects the safety and reliability of the explosion-proof distribution box. Therefore, there is a need to provide an explosion-proof distribution box device with a double sealing structure. Utility Model Content
[0004] The purpose of this utility model is to provide an explosion-proof distribution box device with a double sealing structure, in order to solve the problem mentioned in the background art that most conventional explosion-proof distribution boxes are sealed with gaskets. However, after long-term use, the sealing performance of simple gaskets is easily affected, which makes the explosion-proof distribution box susceptible to intrusion of flammable gases and moisture, thereby affecting the safety and reliability of the explosion-proof distribution box. To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof distribution box device with a double-sealing structure, comprising a distribution box body, a sealing assembly on the front of the distribution box body, the sealing assembly including a door hinged to the front of the distribution box body, a sealing strip fixedly connected to the back of the door, a first metal sealing gasket fixedly connected to the back of the door, an installation hole on the back of the first metal sealing gasket, a reinforcing bolt threaded into the inner wall of the installation hole, the reinforcing bolt threaded into the inside of the door, a sealing plate fixedly connected to the inner wall of the distribution box body, a sealing groove on the front of the sealing plate, a rubber strip fixedly connected to the inner wall of the sealing groove, a second metal sealing gasket fixedly connected to the front of the sealing plate, and a connecting handle fixedly connected to the front of the door. By installing a sealing component, when the distribution box door needs to be closed during daily use, the sealing strip on the back of the door can be pushed into the sealing groove on the sealing plate. When the door is closed, the sealing strip elastically deforms under the pressure of the door and the box body, filling the gaps and preventing flammable and explosive substances from entering the box. Simultaneously, the rubber strip in the sealing groove has excellent weather resistance, chemical corrosion resistance, and high elasticity, maintaining stable performance for a long time. Furthermore, when the door is closed, the metal sealing gaskets on the back of the door come into contact with each other. This sealing method utilizes the good conductivity of metal materials to conduct static electricity between the door and the box body, preventing the accumulation of static electricity and the generation of electric sparks. This further enhances the barrier effect against flammable and explosive substances, improving the practicality of the device.
[0005] Further preferably, the bottom of the distribution box body is provided with an explosion-proof component. The explosion-proof component includes a mounting bracket, which is fixedly connected to the bottom of the distribution box body. The bottom of the mounting bracket has a cable management groove, and one side of the mounting bracket has a limit groove. The inner wall of the limit groove is slidably connected to a limit block, and the inside of the limit block is movably connected to a limit shaft. A connecting spring is sleeved on the side surface of the limit shaft. A fixing plate is fixedly connected to one side of the limit block, and the bottom of the fixing plate has a cable management groove. A lifting handle is fixedly connected to the front of the fixing plate. By installing the explosion-proof component, the cables of the distribution box body can be entered through the wire hole during daily use. The sealing ring can tightly wrap the cables, preventing gas and dust from entering. At the same time, the cable management grooves can be used to clamp the cables, thereby maintaining the stability of the cables, further enhancing the sealing and explosion-proof performance, and improving the practicality of the device.
[0006] More preferably, a wire hole is provided at the bottom of the inner wall of the distribution box body, and a sealing ring is fixedly connected to the top of the wire hole.
[0007] More preferably, a heat dissipation component is provided on one side of the distribution box body. The heat dissipation component includes an air outlet, which is located on one side of the distribution box body. A dustproof mesh is fixedly connected to the inner wall of the air outlet, and a fan is fixedly connected to the inner wall of the distribution box body.
[0008] More preferably, an air inlet is provided on the other side of the distribution box body, an air inlet grille is fixedly connected to one side of the air inlet, and a dustproof net is fixedly connected to the bottom of the air inlet grille.
[0009] More preferably, a control panel is fixedly connected to the front of the cabinet door, and an adjustment button is movably connected to the front of the control panel.
[0010] More preferably, the front of the box door has an observation opening, and the inner wall of the observation opening is fixedly connected to an observation window.
[0011] More preferably, a connecting plate is fixedly connected to the inner wall of the distribution box body, and electrical components are fixedly connected to the front side of the connecting plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In this invention, by installing a sealing component, when the distribution box door needs to be closed during daily use, the sealing strip on the back of the door can be pushed into the sealing groove on the sealing plate. When the door is closed, the sealing strip undergoes elastic deformation under the pressure of the door and the box body, filling the gap and preventing flammable and explosive substances from entering the box. Simultaneously, the rubber strip in the sealing groove has excellent weather resistance, chemical corrosion resistance, and high elasticity, maintaining stable performance for a long time. Furthermore, when the door is closed, the metal sealing gaskets on the back of the door come into contact with each other. This sealing method utilizes the good conductivity of metal materials to conduct static electricity between the door and the box body, preventing the accumulation of static electricity and the generation of electric sparks. It also further enhances the barrier effect against flammable and explosive substances, improving the practicality of the device.
[0014] In this utility model, by installing explosion-proof components, the cables of the distribution box body can be entered through the wire hole during daily use. The sealing ring can tightly wrap the cables to prevent gas and dust from entering. At the same time, the cable management channels one and two can clamp the cables to maintain their stability, further enhancing the sealing and explosion-proof performance and improving the practicality of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of a partial three-dimensional structure of the present invention. Figure 1 ;
[0018] Figure 4 This is a schematic diagram of a partial three-dimensional structure of the present invention. Figure 2 ;
[0019] Figure 5 This is a schematic diagram of a partial three-dimensional structure of the present invention. Figure 3 ;
[0020] Figure 6 This is a schematic diagram of a partial three-dimensional structure of the present invention. Figure 4 .
[0021] In the diagram: 1. Distribution box body; 2. Sealing assembly; 3. Explosion-proof assembly; 4. Heat dissipation assembly; 5. Control panel; 6. Adjustment button; 7. Observation port; 8. Observation window; 9. Connection plate; 10. Electrical components; 201. Box door; 202. Sealing strip; 203. Metal sealing gasket one; 204. Mounting hole; 205. Reinforcing bolt; 206. Sealing plate; 207. Sealing groove; 208. Rubber strip; 209. Metal sealing gasket two; 210. Connecting handle; 301. Mounting bracket; 302. Cable management channel one; 303. Limiting groove; 304. Limiting block; 305. Limiting shaft; 306. Connecting spring; 307. Fixing plate; 308. Cable management channel two; 309. Lifting handle; 310. Wire hole; 311. Sealing ring; 401. Air outlet; 402. Dustproof net one; 403. Fan; 404. Air inlet; 405. Air inlet grille; 406. Dustproof net two. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-6This utility model provides a technical solution: an explosion-proof distribution box device with a double sealing structure, including a distribution box body 1, a sealing component 2 on the front of the distribution box body 1, the sealing component 2 including a door 201, the door 201 being hinged to the front of the distribution box body 1, a sealing strip 202 fixedly connected to the back of the door 201, a metal sealing gasket 203 fixedly connected to the back of the door 201, an installation hole 204 on the back of the metal sealing gasket 203, a reinforcing bolt 205 threadedly connected to the inner wall of the installation hole 204, the reinforcing bolt 205 being threadedly connected to the inside of the door 201, a sealing plate 206 fixedly connected to the inner wall of the distribution box body 1, a sealing groove 207 on the front of the sealing plate 206, a rubber strip 208 fixedly connected to the inner wall of the sealing groove 207, a second metal sealing gasket 209 fixedly connected to the front of the sealing plate 206, and a sealing strip 208 fixedly connected to the inner wall of the sealing groove 207. The junction box 201 is equipped with a connecting handle 210 and a sealing component 2. During daily use of the distribution box 1, when it is necessary to close the box door 201, the sealing strip 202 on the back of the box door 201 can be pushed into the sealing groove 207 on the sealing plate 206. When the box door 201 is closed, the sealing strip 202 undergoes elastic deformation under the pressure of the box door 201 and the box body, filling the gap and preventing flammable and explosive substances from entering the box. At the same time, the rubber strip 208 in the sealing groove 207 has excellent weather resistance, chemical corrosion resistance and high elasticity, and can maintain stable performance for a long time. When the box door 201 is closed, the metal sealing gasket 1 203 on the back of the box door 201 will fit with the metal sealing gasket 209. This sealing method utilizes the good conductivity of metal materials to conduct static electricity between the box door 201 and the box body, preventing static electricity accumulation and the generation of electric sparks.
[0024] In this embodiment, as Figure 4 and Figure 5 As shown, an explosion-proof component 3 is provided at the bottom of the distribution box body 1. The explosion-proof component 3 includes a mounting bracket 301, which is fixedly connected to the bottom of the distribution box body 1. A cable management groove 302 is provided at the bottom of the mounting bracket 301. A limit groove 303 is provided on one side of the mounting bracket 301. A limit block 304 is slidably connected to the inner wall of the limit groove 303. A limit shaft 305 is movably connected inside the limit block 304. A connecting spring 306 is sleeved on the side surface of the limit shaft 305. A limit block 304 is fixedly connected to the inner wall of the limit block 304. A fixing plate 307 is attached, and a cable management channel 308 is provided at the bottom of the fixing plate 307. A lifting handle 309 is fixedly connected to the front of the fixing plate 307. By installing the explosion-proof component 3, the cables of the distribution box body 1 can be entered through the wire hole 310 during daily use. The sealing ring 311 can tightly wrap the cables to prevent gas and dust from entering. At the same time, the cable management channel 302 and the cable management channel 308 can be used to clamp the cables to keep them stable.
[0025] In this embodiment, as Figure 2 As shown, a wire hole 310 is provided at the bottom of the inner wall of the distribution box body 1, and a sealing ring 311 is fixedly connected to the top of the wire hole 310.
[0026] In this embodiment, as Figure 2 and Figure 6 As shown, a heat dissipation component 4 is provided on one side of the distribution box body 1. The heat dissipation component 4 includes an air outlet 401, which is located on one side of the distribution box body 1. A dustproof mesh 402 is fixedly connected to the inner wall of the air outlet 401, and a fan 403 is fixedly connected to the inner wall of the distribution box body 1.
[0027] In this embodiment, as Figure 2 and Figure 6 As shown, an air inlet 404 is provided on the other side of the distribution box body 1. An air inlet grille 405 is fixedly connected to one side of the air inlet 404, and a dustproof net 406 is fixedly connected to the bottom of the air inlet grille 405.
[0028] In this embodiment, as Figure 1 As shown, a control panel 5 is fixedly connected to the front of the door 201, and an adjustment button 6 is movably connected to the front of the control panel 5.
[0029] In this embodiment, as Figure 1 As shown, an observation port 7 is provided on the front of the box door 201, and an observation window 8 is fixedly connected to the inner wall of the observation port 7.
[0030] In this embodiment, as Figure 2 As shown, a connecting plate 9 is fixedly connected to the inner wall of the distribution box body 1, and an electrical component 10 is fixedly connected to the front of the connecting plate 9.
[0031] The usage and advantages of this utility model: The explosion-proof distribution box device with a double-sealed structure operates as follows:
[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, during routine use of the distribution box 1, when it is necessary to close the box door 201, the sealing strip 202 on the back of the box door 201 can be pushed into the sealing groove 207 on the sealing plate 206. Thus, when the box door 201 is closed, under the pressure of the box door 201 against the box body, the sealing strip 202 undergoes elastic deformation, filling the gaps and preventing flammable and explosive substances from entering the box. Simultaneously, the rubber strip 208 within the sealing groove 207 possesses excellent weather resistance, chemical corrosion resistance, and high elasticity, maintaining stable performance for a relatively long period. When the box door 201 is closed, the metal sealing gasket 203 on the back of the box door 201 will fit against the metal sealing gasket 209. This sealing method utilizes the good conductivity of metal materials to conduct static electricity between the box door 201 and the box body, preventing static electricity accumulation and the generation of electric sparks. At the same time, the cable of the distribution box body 1 can enter through the wire hole 310, so that the sealing ring 311 can tightly wrap the cable to prevent gas and dust from entering. At the same time, the cable can be clamped by the cable management groove 302 and the cable management groove 308, thereby maintaining the stability of the cable.
[0033] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An explosion-proof distribution box device with a double-sealed structure, comprising a distribution box body (1), characterized in that: A sealing assembly (2) is provided on the front of the distribution box body (1). The sealing assembly (2) includes a door (201), which is hinged to the front of the distribution box body (1). A sealing strip (202) is fixedly connected to the back of the door (201), and a metal sealing gasket (203) is fixedly connected to the back of the door (201). An installation hole (204) is provided on the back of the metal sealing gasket (203), and a reinforcing thread is threaded into the inner wall of the installation hole (204). Bolt (205), the reinforcing bolt (205) is threadedly connected to the inside of the box door (201), a sealing plate (206) is fixedly connected to the inner wall of the distribution box body (1), a sealing groove (207) is opened on the front of the sealing plate (206), a rubber strip (208) is fixedly connected to the inner wall of the sealing groove (207), a metal sealing gasket (209) is fixedly connected to the front of the sealing plate (206), and a connecting handle (210) is fixedly connected to the front of the box door (201).
2. The explosion-proof distribution box device with a double-sealing structure according to claim 1, characterized in that: The bottom of the distribution box body (1) is provided with an explosion-proof component (3). The explosion-proof component (3) includes a mounting bracket (301). The mounting bracket (301) is fixedly connected to the bottom of the distribution box body (1). The bottom of the mounting bracket (301) is provided with a cable management groove (302). A limiting groove (303) is provided on one side of the mounting bracket (301). A limiting block (304) is slidably connected to the inner wall of the limiting groove (303). A limiting shaft (305) is movably connected inside the limiting block (304). A connecting spring (306) is sleeved on the side surface of the limiting shaft (305). A fixing plate (307) is fixedly connected to one side of the limiting block (304). A cable management groove (308) is provided at the bottom of the fixing plate (307). A lifting handle (309) is fixedly connected to the front of the fixing plate (307).
3. The explosion-proof distribution box device with a double-sealed structure according to claim 1, characterized in that: The bottom of the inner wall of the distribution box body (1) is provided with a wire hole (310), and a sealing ring (311) is fixedly connected to the top of the wire hole (310).
4. The explosion-proof distribution box device with a double-sealed structure according to claim 1, characterized in that: A heat dissipation assembly (4) is provided on one side of the power distribution box body (1). The heat dissipation assembly (4) includes an air outlet (401). The air outlet (401) is located on one side of the power distribution box body (1). A dustproof net (402) is fixedly connected to the inner wall of the air outlet (401). A fan (403) is fixedly connected to the inner wall of the power distribution box body (1).
5. The explosion-proof distribution box device with a double-sealing structure according to claim 1, characterized in that: An air inlet (404) is provided on the other side of the main body (1) of the distribution box. An air inlet grille (405) is fixedly connected to one side of the air inlet (404), and a dustproof net (406) is fixedly connected to the bottom of the air inlet grille (405).
6. The explosion-proof distribution box device with a double-sealing structure according to claim 1, characterized in that: A control panel (5) is fixedly connected to the front of the box door (201), and an adjustment button (6) is movably connected to the front of the control panel (5).
7. The explosion-proof distribution box device with a double-sealed structure according to claim 1, characterized in that: The front of the box door (201) is provided with an observation opening (7), and an observation window (8) is fixedly connected to the inner wall of the observation opening (7).
8. The explosion-proof distribution box device with a double-sealed structure according to claim 1, characterized in that: The inner wall of the distribution box body (1) is fixedly connected to a connecting plate (9), and the front side of the connecting plate (9) is fixedly connected to an electrical component (10).