Distribution box with explosion-proof function
By installing a storage chamber and filter box/filter cloth system inside the distribution box, the problem of toxic gas emissions in explosion-proof distribution boxes is solved, achieving safe gas neutralization and filtration, and ensuring the safety of operators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-03-13
AI Technical Summary
Existing explosion-proof distribution boxes directly release toxic gases during electrical short circuits or explosions, endangering the safety of operators.
A storage chamber and a vent are set inside the distribution box. Neutralizing liquid is injected through the feed pipe, and the gas is filtered by the filter box and filter cloth. After neutralizing the toxic gas, it is discharged through the outlet, thus achieving gas neutralization and filtration.
It effectively neutralizes and filters toxic gases, preventing their direct emission and ensuring the safety of operators.
Smart Images

Figure CN223993499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution box technology, and in particular to a distribution box with explosion-proof function. Background Technology
[0002] Explosion-proof distribution boxes are a type of distribution box with explosion-proof properties, mainly including explosion-proof lighting distribution boxes, explosion-proof power distribution boxes, and explosion-proof and corrosion-resistant distribution boxes. Explosion-proof distribution boxes are suitable for electrical wiring in flammable and explosive environments such as petrochemical plants, oil platforms, chemical plants, pharmaceutical plants, coal mines, metallurgical plants, shipbuilding plants, military industries, and textile mills.
[0003] When electrical components inside existing explosion-proof distribution boxes generate electrical sparks, it can lead to local electrical short circuits in severe cases, resulting in electrical explosions. The fumes produced by the explosions are toxic and, if released directly into the air, can endanger the lives of nearby operators. Utility Model Content
[0004] To address the problems of existing technologies, this utility model provides a distribution box with explosion-proof functionality. The basic concept of the technical solution adopted by this utility model to solve the aforementioned technical problems is as follows:
[0005] An explosion-proof distribution box includes a distribution box shell. A storage cavity is located inside the distribution box shell near one corner. A vent is located on one inner wall of the distribution box shell, with its top end extending into the interior of the distribution box shell and its bottom end extending into the bottom surface of the storage cavity. An outlet is located on one side of the distribution box shell. The top surface of the storage cavity is connected to the bottom of the outlet. A liquid for neutralizing toxic gases generated during an electrical explosion is injected into the storage cavity through a feed pipe. When an electrical explosion occurs inside the distribution box shell, the generated toxic gases are first filtered through a filter box. The filtered gas then enters the bottom of the storage cavity through the vent. Inside the storage cavity, from bottom to top, the toxic substances in the toxic gases are neutralized by the neutralizing liquid.
[0006] Optionally, a socket is provided on one side of the distribution box housing, and the socket extends into the interior of the storage cavity.
[0007] Optionally, a sealing plate is slidably disposed between the inner walls of the inlet, and a support frame is slidably engaged between the inner walls of the outlet.
[0008] Optionally, multiple filter cloths are fixed at equal intervals between the inner walls on both sides of the support frame, and a scale strip is provided on one side of the outer shell of the distribution box, the scale strip being located on one side of the storage cavity.
[0009] Optionally, a feed pipe is fixed to one side of the distribution box housing, and one end of the feed pipe extends into the interior of the storage cavity.
[0010] Optionally, a filter box is provided on one inner wall of the distribution box housing, and the filter box is located on the top side of the air vent.
[0011] Optionally, the bottom of the distribution box casing is fixed with pads at the four corners, and a safety door is provided on the front side of the distribution box casing, with multiple meters installed on the front side of the safety door.
[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:
[0013] 1. In this utility model, during actual use, the liquid that neutralizes the toxic gas generated by the electrical explosion is first injected into the storage chamber through the feed pipe. When an electrical explosion occurs inside the distribution box shell, the generated toxic gas is first filtered through the filter box. The filtered gas enters the bottom of the storage chamber through the air guide hole. Inside the storage chamber, from bottom to top, the toxic substances in the toxic gas are neutralized when passing through the neutralizing liquid inside the storage chamber. The neutralized gas is discharged through the air outlet and is filtered through the filter cloth during discharge.
[0014] 2. In this utility model, when the filter cloth is installed inside the air outlet, the filter cloth is first set in a bent shape, and then the bent filter cloth is installed inside the support frame. Then the support frame is placed inside the air outlet. The sealing plate is slid and engaged inside the insertion port, so that the connection between the upper part of the storage cavity and the air outlet can be sealed by the sealing plate, thereby controlling its opening and closing. Attached Figure Description
[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0016] Figure 1 This utility model provides a front-view three-dimensional structural diagram of a distribution box with explosion-proof function;
[0017] Figure 2 This utility model provides a side-view three-dimensional structural diagram of a distribution box with explosion-proof function;
[0018] Figure 3 This invention provides a cross-sectional three-dimensional structural diagram of a distribution box with explosion-proof function.
[0019] The attached diagram lists the components represented by each number as follows:
[0020] 1. Distribution box casing; 2. Safety door; 3. Meter; 4. Pad; 5. Air outlet; 6. Support frame; 7. Filter cloth; 8. Scale strip; 9. Sealing plate; 10. Feed pipe; 11. Filter box; 12. Air guide hole; 13. Storage chamber; 14. Socket.
[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings.
[0023] Example 1, as Figure 1-3 As shown, this utility model provides a power distribution box with explosion-proof function: it includes a power distribution box shell 1, a storage cavity 13 is provided inside the power distribution box shell 1 near one corner, a vent hole 12 is provided on one inner wall of the power distribution box shell 1, the top end of the vent hole 12 penetrates into the interior of the power distribution box shell 1, the bottom end of the vent hole 12 penetrates into the bottom surface of the interior of the storage cavity 13, an air outlet 5 is provided on one side of the power distribution box shell 1, and the top surface of the interior of the storage cavity 13 and the bottom of the air outlet 5 are interconnected.
[0024] The effect achieved by the entire embodiment 1 is that, in actual use, the liquid that neutralizes the toxic gas generated by the electrical explosion is first injected into the storage cavity 13 through the feed pipe 10. When an electrical explosion occurs inside the distribution box shell 1, the generated toxic gas is first filtered through the filter box 11. The filtered gas enters the bottom of the storage cavity 13 through the air guide hole 12. Inside the storage cavity 13, from bottom to top, when passing through the neutralizing liquid inside the storage cavity 13, the toxic substances in the toxic gas can be neutralized. The neutralized gas is discharged through the air outlet 5 and is filtered through the filter cloth 7 when discharged.
[0025] Example 2, as Figure 1-3 As shown, a socket 14 is provided on one side of the distribution box housing 1, which extends into the storage cavity 13. A sealing plate 9 is slidably arranged between the inner walls of the socket 14. A support frame 6 is slidably engaged between the inner walls of the air outlet 5. Multiple filter cloths 7 are fixed at equal intervals between the inner walls on both sides of the support frame 6. A scale bar 8 is provided on one side of the distribution box housing 1, located on one side of the storage cavity 13. A feed pipe 10 is fixed on one side of the distribution box housing 1, with one end of the feed pipe 10 extending into the storage cavity 13. A filter box 11 is provided on the inner wall of one side of the distribution box housing 1, located at the top of the air guide hole 12. Pads 4 are fixed at the four corners of the bottom of the distribution box housing 1. A safety door 2 is provided on the front side of the distribution box housing 1, and multiple meters 3 are provided on the front side of the safety door 2.
[0026] The effect achieved by the entire embodiment 2 is that when the filter cloth 7 is set inside the air outlet 5, the filter cloth 7 is first set in a bent shape, and then the bent filter cloth 7 is installed inside the support frame 6. Then the support frame 6 is placed inside the air outlet 5. The sealing plate 9 is slidably engaged inside the insertion port 14, so that the connection between the upper part of the storage cavity 13 and the air outlet 5 can be sealed by the sealing plate 9, thereby controlling its opening and closing.
[0027] Working principle: In actual use, the liquid that neutralizes the toxic gas generated by the electrical explosion is first injected into the storage chamber 13 through the feed pipe 10. When an electrical explosion occurs inside the distribution box shell 1, the generated toxic gas is first filtered through the filter box 11. The filtered gas enters the bottom of the storage chamber 13 through the air guide hole 12. Inside the storage chamber 13, from bottom to top, the toxic substances in the toxic gas are neutralized when passing through the neutralizing liquid inside the storage chamber 13. The neutralized gas is discharged through the air outlet 5 and filtered through the filter cloth 7 during discharge. When setting the filter cloth 7 inside the air outlet 5, the filter cloth 7 is first set in a bent shape, and then the bent filter cloth 7 is installed inside the support frame 6. Then the support frame 6 is placed inside the air outlet 5. The sealing plate 9 is slidably engaged inside the socket 14, and the connection between the upper part of the storage chamber 13 and the air outlet 5 is sealed by the sealing plate 9, thereby controlling its opening and closing.
[0028] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A distribution box with explosion-proof function, comprising a distribution box shell (1), characterized in that: The inside of the distribution box shell (1) is provided with a storage cavity (13) near one side corner, one side inner wall of the distribution box shell (1) is provided with a gas guide hole (12), the top end of the gas guide hole (12) penetrates to the inside of the distribution box shell (1), the bottom end of the gas guide hole (12) penetrates to the inside bottom surface of the storage cavity (13), one side of the distribution box shell (1) is provided with an air outlet (5), the inside top surface of the storage cavity (13) and the bottom of the air outlet (5) are in communication with each other.
2. The distribution box with explosion-proof function according to claim 1, characterized in that: One side of the distribution box shell (1) is provided with a socket (14), the socket (14) penetrates to the inside of the storage cavity (13).
3. The distribution box with explosion-proof function according to claim 2, characterized in that: The inner walls of the socket (14) are slidably provided with an enclosing plate (9), the inner walls of the air outlet (5) are slidably clamped with a support frame (6).
4. The distribution box with explosion-proof function according to claim 3, characterized in that: A plurality of filter cloths (7) are fixed between the two side inner walls of the support frame (6) at equal intervals, one side of the distribution box shell (1) is provided with a scale bar (8), and the scale bar (8) is located on one side of the storage cavity (13).
5. The distribution box with explosion-proof function according to claim 4, characterized in that: One side of the distribution box shell (1) is fixed with a feeding pipe (10), one end of the feeding pipe (10) penetrates to the inside of the storage cavity (13).
6. The distribution box with explosion-proof function according to claim 5, characterized in that: The inner wall of one side of the distribution box shell (1) is provided with a filter box (11), and the filter box (11) is located on one side of the top end of the gas guide hole (12).
7. The distribution box with explosion-proof function according to claim 1, characterized in that: The bottom of the distribution box shell (1) is fixed with a pad (4) at four corners, the front side of the distribution box shell (1) is provided with a safety door (2), and the front side of the safety door (2) is provided with a plurality of meters (3).