Rainproof sealed outdoor distribution box top structure

Abstract

The utility model relates to power equipment protection technical field, concretely is a rain -proof sealed outdoor distribution box top structure, including box and top cover, the outer edge of box top opening is surrounded and is equipped with the water retaining platform of echelon, the water retaining platform outside is equipped with the L shape flanging that is formed by outside horizontal extension and then upwards bending again outside, the circumference of top cover forms eave downward, the eave is equipped in L shape flanging outside, and the water retaining platform is along the interval setting a plurality of flow guide unit outside, the flow guide unit includes the flow guide seat fixed in the water retaining platform outside and the flow guide core that can be dismantled and inserted in the flow guide seat inside. This rain -proof sealed outdoor distribution box top structure can effectively block rainwater along the joint penetration path, realizes active flow guide and structure waterproof combination, has improved the sealing reliability significantly, and simple structure, easy maintenance.

Description

Technical Field

[0001] This utility model relates to the field of power equipment protection technology, specifically a rainproof and sealed top structure for an outdoor distribution box. Background Technology

[0002] Outdoor distribution boxes, as key equipment for power distribution and control, are widely used in various environments such as roads, residential areas, factories, and the wilderness. Due to long-term exposure to the natural environment, distribution boxes must have good waterproof, dustproof, and weather-resistant properties, especially the top structure, which is directly subjected to rain and sun exposure. Its sealing performance directly affects the safe operation of the electrical components inside the box.

[0003] Currently, most outdoor distribution boxes use a flat or simply sloping top cover design, with the top cover and the box body secured together by a sealing strip. While this structure provides basic rain protection, it has significant drawbacks in practical use: when the top cover surface deforms slightly due to prolonged exposure to sun and rain, or when the sealing strip ages, rainwater easily accumulates at the edges of the top cover and seeps into the box along the seam between the top cover and the box body. Especially in windy and rainy conditions, rainwater is pushed inward along the seam edges by the wind, causing edge seepage, leading to dampness inside the box, short circuits or corrosion of components, seriously affecting the operational safety and service life of the distribution box. Utility Model Content

[0004] The purpose of this utility model is to provide a rainproof and sealed top structure for outdoor distribution boxes, in order to solve the problem mentioned in the background art that rainwater can easily seep in along the edge at the joint between the top cover and the box body of current outdoor distribution boxes due to aging of the sealing strip or structural defects, causing the box to become damp and damage the components.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rainproof and sealed outdoor distribution box top structure, including a box body and a top cover. The outer edge of the top opening of the box body is surrounded by a stepped water-blocking platform. The outer side of the water-blocking platform is provided with an L-shaped flange that extends horizontally outward and then bends upward. The periphery of the top cover extends downward to form an outer eave. The outer eave is fitted over the L-shaped flange. Multiple flow guiding units are arranged circumferentially along the upper edge of the water-blocking platform. Each flow guiding unit includes a flow guiding seat fixed to the outer side of the water-blocking platform and a flow guiding core that can be detachably inserted into the flow guiding seat.

[0006] Preferably, the water-blocking platform is an annular structure, with its height lower than the edge of the top surface of the box, and an annular groove is provided on the top of the water-blocking platform. A sealing gasket is provided in the annular groove, and the outer wall of the water-blocking platform is connected to the starting end of the horizontal section of the L-shaped flange.

[0007] Preferably, the horizontal section of the L-shaped flange has a width of 6-10mm, the vertical section has a height of 18-25mm, and the top edge of the vertical section of the L-shaped flange is lower than the edge of the top surface of the box.

[0008] Preferably, the guide seat consists of multiple guide columns distributed circumferentially along the outer side wall of the baffle platform. Each guide column has an outwardly inclined guide surface at its top and a drain outlet at its end, with the drain outlet facing downwards and outwards from the outside of the tank.

[0009] Preferably, the guide core is a guide plate made of elastic plastic. One end of the guide plate is inserted and fixed at the drain outlet of the guide column, and the other end extends outward and downward to form a cantilever section. The outer end of the cantilever section protrudes from the outer surface of the side wall of the box.

[0010] Preferably, the insertion depth of the outer eaves is greater than 2 / 3 of the height of the vertical section of the L-shaped flange, its bottom end is located in the lower middle part of the vertical section of the L-shaped flange, and a surrounding water storage gap is formed between the inner side wall of the outer eaves and the outer side wall of the L-shaped flange.

[0011] Compared with existing technologies, the beneficial effects of this utility model are: the rainproof and sealed top structure of the outdoor distribution box can effectively block rainwater from seeping in along the joints, achieving a combination of active drainage and structural waterproofing, significantly improving sealing reliability, and the structure is simple and easy to maintain. This structure forms an external water-blocking structure through the L-shaped flange and the outer eaves, combined with the active drainage design of the guide seat and guide core at the drainage outlet, ensuring that rainwater seeping into the gaps is promptly guided to the outside of the box, preventing water accumulation and creep. Simultaneously, the water storage gap and the multi-point distributed guide units work together to improve drainage efficiency, effectively solving the problem of easy water seepage after the aging of traditional sealing strips, and enhancing protection capabilities in complex outdoor environments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the top structure of a rainproof and sealed outdoor distribution box according to the present invention.

[0013] Figure 2 This is a top view of the top structure of a rainproof and sealed outdoor distribution box according to the present invention.

[0014] Figure 3 This is a schematic diagram of the top cover and bottom structure of a rainproof and sealed outdoor distribution box according to this utility model.

[0015] In the diagram: 1. Box body; 11. Water baffle; 12. L-shaped flange; 2. Top cover; 21. Outer eaves; 3. Flow guiding unit; 31. Flow guiding seat; 32. Flow guiding core; 4. Sealing gasket. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: a rainproof and sealed outdoor distribution box top structure, including a box body 1 and a top cover 2. A stepped water-blocking platform 11 surrounds the outer edge of the top opening of the box body 1. An L-shaped flange 12, formed by extending horizontally outwards and then bending upwards from the outer side of the water-blocking platform 11, is provided on the outside of the platform. The periphery of the top cover 2 extends downwards to form an outer eave 21, which is fitted over the L-shaped flange 12. Multiple flow-guiding units 3 are spaced circumferentially along the water-blocking platform 11. Each flow-guiding unit 3 includes a flow-guiding seat 31 fixed to the outside of the water-blocking platform 11 and a flow-guiding core 32 detachably inserted into the flow-guiding seat 31. In this structure, when rainwater flows down along the outer eave 21 of the top cover 2 and attempts to penetrate inwards through the gap between the outer eave 21 and the L-shaped flange 12, the vertical... The straight section forms the first physical barrier, preventing water from directly entering the interior of the tank 1. Rainwater accumulating above the L-shaped flange 12 flows horizontally towards the outside of the baffle platform 11 and is captured by multiple guide units 3 on the baffle platform 11. The guide seat 31 acts as a diversion column, concentrating the water flow to its top diversion surface and then guiding it to the drain outlet at the end. The guide core 32, inserted at the drain outlet, acts as an elastic diversion plate, actively guiding the rainwater to a position away from the side wall of the tank 1 through its outward and downward cantilevered section, effectively preventing water from flowing back along the wall or accumulating at the joints. Simultaneously, the water storage gap formed by the outer eaves 21 fitted onto the outside of the L-shaped flange 12 can temporarily accommodate some rainwater and promote its flow into the guide units 3. The dense... The sealing gasket 4 forms the main sealing line after the top cover 2 is pressed tightly. This structure achieves multi-level waterproofing and active drainage. Even if the sealing performance deteriorates due to long-term sun and rain exposure or the top cover 2 is slightly deformed, it can still effectively block the path of rainwater continuously seeping in along the edge of the joint between the top cover 2 and the box body 1. This avoids the "edge water seepage" phenomenon caused by rainwater accumulation and wind pressure in traditional structures. It solves the problems of easy moisture inside the distribution box and easy short circuit or corrosion of electrical components in the existing technology. It significantly improves the rainproof sealing performance and operational reliability of outdoor distribution boxes under harsh weather conditions. The water-blocking platform 11 is a ring structure. Its height is lower than the top edge of the box body 1, and the top of the water-blocking platform 11 has an annular groove. The sealing gasket 4 is installed in the annular groove. The outer side of the water-blocking platform 11 The wall is connected to the starting end of the horizontal section of the L-shaped flange 12. This structure, through the step difference formed by the water-retaining platform 11 and the top edge of the box 1, provides a positioning reference for the downward pressing of the top cover 2. At the same time, the sealing gasket 4 achieves the main seal when the top cover 2 is pressed, effectively preventing rainwater from seeping vertically downward. The continuous connection between the outer wall of the water-retaining platform 11 and the horizontal section of the L-shaped flange 12 ensures the integrity of the external water guiding structure, so that the L-shaped flange 12 and the outer eaves 21 together form a stable rainproof eaves structure, improving the overall sealing reliability and structural strength. The width of the horizontal section of the L-shaped flange 12 is 6-10mm, and the height of the vertical section is 18-25mm. The top edge of the vertical section of the L-shaped flange 12 is lower than the top edge of the box 1. This structure controls the width of the horizontal section and the height of the vertical section of the L-shaped flange 12.This design ensures sufficient water-blocking height while avoiding excessive height that could affect the installation and strength of the top cover 2. Furthermore, the vertical section's top is lower than the edge of the top surface of the housing 1, effectively forming a roof eaves structure. This prevents rainwater from falling directly vertically to the joints and guides water flow outwards along the outer eaves 21, reducing the tendency for inward seepage and improving the overall rainproof and drainage performance of the top. The guide seat 31 consists of multiple diversion columns distributed circumferentially along the outer wall of the water-blocking platform 11. Each diversion column has an outwardly inclined guide at its top. The flow surface has a drain outlet at its end, facing downwards and outwards from the outside of the housing 1. This structure, with multiple diversion columns distributed circumferentially by the guide seat 31, forms a multi-point uniform drainage path, preventing localized water accumulation. The inclined flow surface utilizes gravity to guide rainwater to quickly converge at the drain outlet and discharge directly downwards and outwards from the outside of the housing 1, effectively preventing water stagnation or backflow, thus improving drainage efficiency and seepage prevention reliability. The guide core 32 is a diversion plate made of elastic plastic. One end of the guide plate is inserted and fixed at the drain outlet of the diversion column, while the other end extends outwards and downwards to form a cantilever section. The outer end of the cantilever section protrudes from the outer surface of the side wall of the housing 1. This structure, through the cantilever section of the guide core 32, further guides the rainwater discharged from the drain outlet to a position away from the side wall of the housing 1, effectively preventing rainwater from flowing back along the outer wall of the housing 1 or creeping into the bottom gaps. Simultaneously, the elastic insertion structure facilitates disassembly, cleaning, or replacement, improving the maintainability and long-term reliability of the drainage system. The insertion depth of the outer flange 21 is greater than the height of the vertical section of the L-shaped flange 12. Two-thirds of the structure has its bottom end located in the lower middle part of the vertical section of the L-shaped flange 12, and a surrounding water-storing gap is formed between the inner wall of the outer eaves 21 and the outer wall of the L-shaped flange 12. This structure forms a stable labyrinthine gap through the deep fit between the outer eaves 21 and the L-shaped flange 12, effectively extending the rainwater infiltration path. At the same time, the surrounding water-storing gap can temporarily accommodate and guide a small amount of accumulated water entering along the joint to flow towards the circumferentially distributed diversion units 3, avoiding local liquid accumulation and significantly enhancing the rainproof sealing capability of the top structure.

[0018] Working principle: When using the rainproof and sealed outdoor distribution box top structure, rainwater first falls on the top cover 2 and flows outward along its outer eaves 21. When the rainwater reaches the edge of the outer eaves 21, some of the water flows into the gap between the outer eaves 21 and the L-shaped flange 12 under the action of wind pressure and seeps downward. At this time, the rainwater accumulated above the L-shaped flange 12 flows along its horizontal section to the outside of the water baffle 11. At the same time, the water storage gap formed between the inner wall of the outer eaves 21 and the outer wall of the L-shaped flange 12 accommodates part of the seeping water flow and guides it to move towards the circumferentially distributed guide unit 3. Subsequently, the water flow is captured by the flow guide surface of the guide seat 31 and collected to the drain outlet. The guide core 32 is inserted at the drain outlet, and its cantilever section leads the water flow out from the drain outlet and throws it away from the outer surface of the side wall of the box 1. At the same time, the top cover 2 is pressed tightly on the water baffle 11, so that the sealing gasket 4 is attached to the bottom of the top cover 2, thereby completing a series of operations.

[0019] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A rainproof and sealed outdoor distribution box top structure, comprising a box body (1) and a top cover (2), characterized in that: The top opening of the box (1) is surrounded by a stepped water baffle (11). The water baffle (11) is provided with an L-shaped flange (12) that extends horizontally outward and then bends upward. The periphery of the top cover (2) extends downward to form an outer eave (21). The outer eave (21) is fitted outside the L-shaped flange (12). Multiple flow guiding units (3) are arranged circumferentially on the water baffle (11). The flow guiding unit (3) includes a flow guiding seat (31) fixed to the outside of the water baffle (11) and a flow guiding core (32) that can be detachably inserted into the flow guiding seat (31).

2. The rainproof and sealed top structure of an outdoor distribution box according to claim 1, characterized in that: The water-blocking platform (11) is a ring structure, and its height is lower than the top edge of the box (1). The top of the water-blocking platform (11) is provided with a ring groove, and a sealing gasket (4) is provided in the ring groove. The outer wall of the water-blocking platform (11) is connected to the starting end of the horizontal section of the L-shaped flange (12).

3. The rainproof and sealed top structure of an outdoor distribution box according to claim 1, characterized in that: The horizontal section of the L-shaped flange (12) is 6-10mm wide and the vertical section is 18-25mm high. The top edge of the vertical section of the L-shaped flange (12) is lower than the top edge of the box body (1).

4. The rainproof and sealed top structure of an outdoor distribution box according to claim 1, characterized in that: The guide seat (31) consists of multiple guide columns distributed circumferentially along the outer side wall of the baffle platform (11). Each guide column has an outwardly inclined guide surface at the top and a drain outlet at the end of the guide surface, with the drain outlet facing the lower outside of the box body (1).

5. The rainproof and sealed top structure of an outdoor distribution box according to claim 4, characterized in that: The guide core (32) is a guide plate made of elastic plastic. One end of the guide plate is inserted and fixed at the drain outlet of the guide column, and the other end extends outward and downward to form a cantilever section. The outer end of the cantilever section protrudes from the outer surface of the side wall of the box (1).

6. The rainproof and sealed top structure of an outdoor distribution box according to claim 1, characterized in that: The insertion depth of the outer eave (21) is greater than 2 / 3 of the height of the vertical section of the L-shaped flange (12), and its bottom end is located in the middle and lower part of the vertical section of the L-shaped flange (12). A water storage gap is formed between the inner wall of the outer eave (21) and the outer wall of the L-shaped flange (12).

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