A drainage protection structure for an explosion-proof distribution cabinet

Abstract

This utility model relates to the field of explosion-proof electrical technology and discloses a drainage protection structure for an explosion-proof distribution cabinet. The structure includes a base, a distribution unit body fixedly connected to the upper surface of the base, a distribution unit internally housed within the distribution unit, a drainage trough inside the distribution unit, a water collection tank fixedly connected to the lower surface of the distribution unit, a one-way drain valve fixedly connected to the lower surface of the water collection tank, a hinge fixedly connected to the outer wall of the distribution unit body, and a distribution door fixedly connected to the outer wall of the hinge. A sealing assembly is located inside the distribution door, including a sealing strip disposed inside the distribution door, and a spring fixedly connected to the inner wall of the distribution door. In this utility model, the drainage trough's design with one end higher than the other and the one-way drain valve allow for centralized drainage of condensate, preventing water accumulation. The two layers of sealing strips, spring, and push plate enhance the sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof electrical technology, and in particular to a drainage protection structure for an explosion-proof distribution cabinet. Background Technology

[0002] Explosion-proof distribution cabinets, as crucial electrical control equipment used in flammable and explosive environments, are widely applied in special industrial sites such as chemical, mining, and petroleum industries. Their primary function is to ensure the safe operation of power distribution systems and prevent explosions caused by electrical sparks or short circuits. Because these environments often present challenges such as high humidity, high dust levels, and even water vapor infiltration, the sealing and drainage capabilities of the distribution cabinet are particularly critical. Especially outdoors or underground, heavy rain or humid air can easily cause moisture to enter the cabinet, affecting the normal operation of components and even leading to short circuits or safety accidents.

[0003] Existing explosion-proof distribution cabinets generally employ a welded or bolted cabinet frame design, with drainage holes or channels at the bottom to allow internal water to drain out through gravity. Internal components are typically mounted on an integrated mounting plate, with cable trays or clamps securing the wiring to ensure stability and safety. Additionally, some units have sloping guide surfaces at the bottom to aid in water collection and drainage to the outlet. These structures physically guide water out, reducing the corrosive effect of water on electrical components.

[0004] However, existing explosion-proof distribution cabinets generally suffer from large gaps between the cabinet door and the cabinet body, allowing moisture to easily enter. Especially in heavy rainfall or high humidity environments, poor sealing inside the cabinet can lead to rainwater or condensation seeping in, causing electrical faults. Furthermore, traditional drainage designs often rely on simple openings, making backflow prevention difficult. If external water flows back into the cabinet, it not only cannot be drained promptly but may also exacerbate the internal humidity environment, affecting the equipment's operational stability and explosion-proof safety performance. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a drainage protection structure for explosion-proof distribution cabinets, aiming to improve the problems that exist in existing explosion-proof distribution cabinet structures, such as large gaps between the cabinet door and the cabinet body, easy entry of water vapor, and inability to expel internal water vapor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drainage protection structure for an explosion-proof distribution cabinet, comprising a base, a distribution motor body fixedly connected to the upper surface of the base, a distribution unit disposed inside the distribution motor body, a drainage groove disposed inside the distribution unit, a water collection tank fixedly connected to the lower surface of the distribution unit, a one-way drain valve fixedly connected to the lower surface of the water collection tank, a hinge fixedly connected to the outer wall of the distribution motor body, a distribution door fixedly connected to the outer wall of the hinge, and a sealing component disposed inside the distribution door;

[0007] The sealing assembly includes a sealing strip one, which is disposed inside the power distribution door. A spring one is fixedly connected to the inner wall of the power distribution door. A push plate is fixedly connected to one end of the spring one. The outer wall of the push plate is fixedly connected to one side of the outer wall of the sealing strip one. A sealing strip two is disposed inside the power distribution door body.

[0008] Furthermore, a sliding rod is fixedly connected to the outer wall of the power distribution unit body. A protective plate is fixedly connected to one sliding end of the sliding rod. A fixing plate is fixedly connected to the outer wall of the protective plate. A fixing frame is fixedly connected to one side of the outer wall of the fixing plate. A compression plate is fixedly connected to the outer wall of the fixing frame. A buffer ring is slidably connected to the outer wall of the compression plate. A spring is provided on the inner wall of the buffer ring. A compression plate is fixedly connected to one end of the spring. A buffer block is fixedly connected to one end of the compression plate. A compression rod is fixedly connected to the outer wall of the buffer block. A spring is sleeved on the outer wall of the compression rod. A fixing block is slidably connected to one end of the compression rod.

[0009] Furthermore, a top plate is fixedly connected to the upper surface of the power distribution unit, and a waterproof cover is fixedly connected to the inner wall of the top plate.

[0010] Furthermore, a drain pipe is fixedly connected to the inner wall of the top plate, and a button is provided on the outer wall of the power distributor.

[0011] Furthermore, the sliding rod is fixedly connected to one side of the outer wall of the power distribution unit, and the buffer block is fixedly connected to one side of the outer wall of the power distribution unit.

[0012] Furthermore, a fan is fixedly connected inside the power distribution unit, and the fixing block is fixedly connected to the outer wall of the protective plate.

[0013] Furthermore, the outer wall of the compression plate is fixedly connected to one end of the second spring, and one end of the third spring is fixedly connected to the outer wall of the buffer block.

[0014] Furthermore, the compression plate two is slidably connected to the inner wall of the buffer ring, and one end of the spring three is fixedly connected to one side of the outer wall of the fixing block.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting a power distributor inside the power distribution unit and a drainage groove on its outer wall, condensate water is facilitated to collect to one side. A water collection tank and a one-way drain valve are set below in sequence to realize the centralized discharge of condensate water and prevent water accumulation. In addition, a sealing component is set between the power distribution door and the power distribution unit, including two layers of sealing strips, springs and push plates, etc., to enhance the sealing performance, effectively prevent external moisture from seeping into the cabinet, and ensure the insulation and safety of electrical components inside the cabinet. It is suitable for harsh operating environments such as high humidity and high corrosion.

[0017] 2. In this utility model, a buffer structure is installed on the outer wall of the power distribution unit to enhance its impact resistance. The buffer structure includes a protective plate, a buffer ring, a spring, and multiple sets of compression and sliding connectors. When the cabinet is subjected to external impact, the spring deformation and component sliding can absorb part of the impact force, effectively mitigating and dispersing the energy. This avoids problems such as significant deformation of the cabinet, weld cracking, or paint peeling, thereby improving the durability and stability of the overall structure and meeting the high requirements for impact resistance in explosion-proof environments. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the drainage protection structure of an explosion-proof distribution cabinet proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the back of a drainage protection structure for an explosion-proof distribution cabinet proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the power distribution unit body of an explosion-proof power distribution cabinet with a drainage protection structure proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the internal explosion structure of the power distribution door of the drainage protection structure of the explosion-proof power distribution cabinet proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of one side of the protective plate structure of the drainage protection structure of the explosion-proof distribution cabinet proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the buffer ring portion of the drainage protection structure of an explosion-proof distribution cabinet proposed in this utility model.

[0024] Legend:

[0025] 1. Base; 2. Power distribution unit body; 3. Hinge; 4. Power distribution door; 5. Top plate; 6. Waterproof cover; 7. Drain pipe; 8. Protective plate; 9. Sliding rod; 10. Fan; 11. Power distributor; 12. Button; 13. Water collection tank; 14. One-way drain valve; 15. Drain trough; 16. Sealing strip one; 17. Sealing strip two; 18. Spring one; 19. Push plate; 20. Fixing plate; 21. Fixing frame; 22. Buffer ring; 23. Spring two; 24. Compression plate one; 25. Buffer block; 26. Compression rod; 27. Spring three; 28. Fixing block; 29. ​​Compression plate two. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-6 This utility model provides an embodiment of a drainage protection structure for an explosion-proof distribution cabinet, including a base 1. The base 1 supports the entire distribution cabinet structure and provides a stable installation foundation. A distribution body 2 is fixedly connected to the upper surface of the base 1. A distribution unit 11 is installed inside the distribution body 2. The core functional component of the distribution unit 11 performs power distribution and control tasks. A drainage groove 15 is provided on the outer wall of the distribution unit 11. A water collection tank 13 is fixedly connected inside the distribution unit 11. The water collection tank 13 collects water flowing out from the drainage groove 15 for centralized drainage. A one-way drain valve 14 is fixedly connected to the lower surface of the water collection tank 13. The one-way drain valve 14 only allows water to be discharged from inside the cabinet to the outside to prevent backflow of external water. A hinge 3 is fixedly connected to the outer wall of the distribution body 2. A distribution door 4 is fixedly connected to the outer wall of the hinge 3. A sealing component is installed inside the distribution door 4.

[0028] The sealing assembly includes a sealing strip 16, which is pasted inside the distribution door 4 and forms a double seal with a second sealing strip 17 to improve the overall sealing performance. The sealing strip 16 is set on one side of the outer wall of the distribution door 4. A spring 18 is fixedly connected to the inner wall of the distribution door 4. A push plate 19 is fixedly connected to one end of the spring 18. The push plate 19 is fixedly connected to one side of the outer wall of the sealing strip 16. A second sealing strip 17 is set inside the distribution door body 2. The second sealing strip 17 is set at the edge of the opening of the distribution door body 2 and fits against the sealing strip 16 to prevent moisture from seeping in from the door gap.

[0029] Reference Figures 1-6A sliding rod 9 is fixedly connected to the outer wall of the motor body 2. The sliding rod 9 serves as a connecting and guiding component for the protective plate 8, allowing the protective plate 8 to slide and deform during impact, thereby achieving buffering. The sliding end of the sliding rod 9 is fixedly connected to the protective plate 8. The protective plate 8 can buffer the impact force during external impact, protecting the motor body from direct force. A fixing plate 20 is fixedly connected to the outer wall of the protective plate 8. A fixing frame 21 is fixedly connected to one side of the outer wall of the fixing plate 20. A compression plate 24 is fixedly connected to the outer wall of the fixing frame 21. A buffer ring 22 is slidably connected to the outer wall of the compression plate 24. The outer wall of buffer ring 22 is slidably connected to compression plate 24, and the inner wall is covered with spring 23. Upon external impact, spring 23 deforms and absorbs some energy. The inner wall of buffer ring 22 is provided with spring 23, one end of which is fixedly connected to compression plate 29. Compression plate 29 connects spring 23 to buffer block 25, and under impact, it slides and compresses the spring, thus achieving the buffering and energy absorption function. One end of compression plate 29 is fixedly connected to buffer block 25. A compression rod 26 is fixedly connected to the outer wall. A spring 27 is sleeved on the outer wall of the compression rod 26. A fixing block 28 is slidably connected to one end of the compression rod 26. The compression rod 26 is connected to the buffer block 25. The compression deformation of the internal spring 27 buffers the impact and conducts the remaining energy. A top plate 5 is fixedly connected to the upper surface of the distribution body 2. A waterproof cover 6 is fixedly connected to the inner wall of the top plate 5. The waterproof cover 6 is installed on the inner wall of the top plate 5 to further prevent external rainwater from seeping in and improve the waterproof sealing ability of the top. A drain pipe 7 is fixedly connected to the inner wall of the top plate 5. A button 12 is set on the outer wall of the distribution unit 11. The sliding rod 9 is fixedly connected to one side of the outer wall of the distribution motor body 2, the buffer block 25 is fixedly connected to one side of the outer wall of the distribution motor body 2, the fan 10 is fixedly connected inside the distribution motor body 2, the fixing block 28 is fixedly connected to the outer wall of the protective plate 8, the outer wall of the compression plate 1 24 is fixedly connected to one end of the spring 2 23, and one end of the spring 3 27 is fixedly connected to the outer wall of the buffer block 25. The buffer block 25 plays the role of energy buffering and conduction when subjected to force, reducing the impact of the machine casing. The compression plate 2 29 is slidably connected to the inner wall of the buffer ring 22, and one end of the spring 3 27 is fixedly connected to one side of the outer wall of the fixing block 28.

[0030] Working principle: When a drainage protection structure for an explosion-proof distribution cabinet is required, a distribution body 2 is fixedly connected to the upper surface of the base 1. A distributor 11 is installed inside the distribution body 2. A drainage groove 15 is installed on the outer wall of the distributor 11. The upper drainage groove 15 is designed with one end higher than the other. A water collection tank 13 and a one-way drain valve 14 are fixedly connected below to collect and discharge condensate or seepage water to prevent water accumulation. The distribution door 4 is installed on the outer wall of the distribution body 2 via a hinge 3 and has a sealing component inside. The sealing component includes a sealing strip 16 on one side of the outer wall of the distribution door 4 and a sealing strip 17 inside the distribution body 2. Together with the auxiliary pressing structure formed by the spring 18 and the push plate 19, it can enhance the sealing performance when the door is closed and effectively prevent water vapor from entering the cabinet.

[0031] In addition, a sliding rod 9 is fixedly connected to the outer wall of the distribution motor body 2. A protective plate 8 is fixedly connected to one end of the sliding rod 9. Two fixed plates 20 are connected to the outer wall of the protective plate 8. Two fixed brackets 21 are connected to the inner wall of the two fixed plates 20. Each of the two fixed brackets 21 has a compression plate 24 at one end. A buffer ring 22 is slidably connected to the outer wall of the compression plate 24. A spring 23 is provided on the inner wall of the buffer ring 22. One end of the spring 23 is connected to the compression plate 29. A buffer block 25 is connected to the outer wall of the compression plate 29. A compression rod 26 is connected to the outer wall of the buffer block 25. A spring 37 is provided on the compression rod 26 and forms a sliding connection with the fixed block 28. When the distribution motor body 2 is impacted, the buffer ring 22 works in conjunction with the spring 23 and the spring 37 to absorb and buffer the impact force. The relative displacement of the sliding parts forms an energy consumption path, thereby effectively preventing deformation of the cabinet panels, peeling of the coating, or cracking of the welds, and improving the overall impact resistance and structural stability.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A drainage protection structure of an explosion-proof power distribution cabinet, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to the power distribution body (2), the power distribution body (2) is provided with a power distribution unit (11), the power distribution unit (11) is provided with a drainage groove (15), the lower surface of the power distribution unit (11) is fixedly connected to a water collection tank (13), the lower surface of the water collection tank (13) is fixedly connected to a one-way drain valve (14), the outer wall of the power distribution body (2) is fixedly connected to a hinge (3), the outer wall of the hinge (3) is fixedly connected to a power distribution door (4), and the power distribution door (4) is provided with a sealing component inside; The sealing assembly includes a sealing strip (16), which is disposed inside the power distribution door (4). A spring (18) is fixedly connected to the inner wall of the power distribution door (4). A push plate (19) is fixedly connected to one end of the spring (18). The push plate (19) is fixedly connected to one side of the outer wall of the sealing strip (16). A sealing strip (17) is disposed inside the power distribution machine body (2).

2. The drainage protection structure of the explosion-proof power distribution cabinet according to claim 1, characterized in that: A sliding rod (9) is fixedly connected to the outer wall of the power distribution body (2). A protective plate (8) is fixedly connected to one end of the sliding rod (9). A fixed plate (20) is fixedly connected to the outer wall of the protective plate (8). A fixed frame (21) is fixedly connected to one side of the outer wall of the fixed plate (20). A compression plate (24) is fixedly connected to the outer wall of the fixed frame (21). A buffer ring (22) is slidably connected to the outer wall of the compression plate (24). A spring (23) is provided on the inner wall of the buffer ring (22). A compression plate (29) is fixedly connected to one end of the spring (23). A buffer block (25) is fixedly connected to one end of the compression plate (29). A compression rod (26) is fixedly connected to the outer wall of the buffer block (25). A spring (27) is sleeved on the outer wall of the compression rod (26). A fixed block (28) is slidably connected to one end of the compression rod (26).

3. The drainage protection structure of the explosion-proof power distribution cabinet according to claim 1, characterized in that: A top plate (5) is fixedly connected to the upper surface of the power distribution machine body (2), and a waterproof cover (6) is fixedly connected to the inner wall of the top plate (5).

4. The drainage protection structure of the explosion-proof power distribution cabinet according to claim 3, characterized in that: A drain pipe (7) is fixedly connected to the inner wall of the top plate (5), and a button (12) is provided on the outer wall of the power distributor (11).

5. The drainage protection structure of an explosion-proof power distribution cabinet according to claim 2, characterized in that: The sliding rod (9) is fixedly connected to one side of the outer wall of the power distribution machine body (2), and the buffer block (25) is fixedly connected to one side of the outer wall of the power distribution machine body (2).

6. The drainage protection structure of an explosion-proof power distribution cabinet according to claim 2, characterized in that: A fan (10) is fixedly connected inside the generator body (2), and the fixing block (28) is fixedly connected to the outer wall of the protective plate (8).

7. The drainage protection structure of an explosion-proof power distribution cabinet according to claim 2, characterized in that: The outer wall of the compression plate (24) is fixedly connected to one end of the spring (23), and one end of the spring (27) is fixedly connected to the outer wall of the buffer block (25).

8. The drainage protection structure of an explosion-proof power distribution cabinet according to claim 2, characterized in that: The compression plate 2 (29) is slidably connected to the inner wall of the buffer ring (22), and one end of the spring 3 (27) is fixedly connected to one side of the outer wall of the fixing block (28).

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