Ring main unit or power distribution cabinet door opening rain shielding device
By designing waterproof cloth and corrugated pipe structures at the door of ring main units or distribution cabinets, the safety hazards during maintenance in rainy weather have been solved, thereby improving the safe working environment and protecting the equipment.
Patent Information
- Application Number
- CN202511789453.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-02-06
AI Technical Summary
When performing maintenance on ring main units or distribution cabinets in rainy weather, rainwater can hit maintenance personnel and splash onto the equipment, creating safety hazards and affecting the progress of the work.
A rain shelter device for cabinet doors was designed, which uses a waterproof cloth connected to the inside of the lintel and uses corrugated pipes and risers to drain rainwater. The outside of the waterproof cloth is fixed to the double cabinet doors to form a waterproof structure, ensuring that rainwater does not affect the safety of maintenance personnel and equipment.
It effectively prevents rainwater splashing and running, ensures the safety of maintenance personnel, prevents water from entering the equipment, improves the working environment, and has the functions of sunshade in summer and snow protection in winter.
Smart Images
Figure CN121473528A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a rain shelter for the door of an electrical control cabinet, specifically a rain shelter for the door of a ring main unit or distribution cabinet. Background Technology
[0002] Ring main units (RMUs) and distribution cabinets are both important components of power systems. Both RMUs and distribution cabinets perform power distribution and control functions. Functionally, RMUs are used to construct ring-shaped distribution networks, achieving mutual backup of multiple power sources through closed-loop trunk lines. When one side fails, power is automatically switched to the other side. Their main components are load switches and fuses, focusing on load current switching and short-circuit protection. Distribution cabinets, on the other hand, centrally install switches, protection devices, and measuring components to achieve power distribution, circuit protection, and equipment control. Both RMUs and distribution cabinets are mainly installed outdoors on the sidewalks along roadsides. They typically require regular maintenance or emergency repairs after power outages. During these maintenance or emergency repairs, especially in rainy weather, one person can only perform the work while another assists with an umbrella. This not only exposes the maintenance personnel to rain and splashes onto the equipment, posing a safety hazard, but also severely impacts the work progress. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing systems by disclosing a rainproof device for the door of a ring main unit or distribution cabinet. This device utilizes a waterproof cloth connected to the inside of the door lintel and uses the double-leaf cabinet door as a support, thereby creating a safe working environment for maintenance personnel.
[0004] In order to achieve the objective of this invention, this application discloses the following technical solution: A rain shelter for the door of a ring main unit or distribution cabinet includes a cabinet body and double doors. The inner side of a waterproof cloth is fixed to the inner side of the lintel of the double doors. The outer side of the waterproof cloth slopes downward. The outer edge of the waterproof cloth is fixed in an elongated oval opening on the inner side of a corrugated pipe. The left and right sides of the outer side of the waterproof cloth are respectively fixedly connected to the upper outer side of the open double doors. The lower part of both ends of the corrugated pipe is provided with a corrugated riser on one side and a corrugated riser on the other side. After the waterproof cloth collects the rainwater, the rainwater is diverted through the corrugated pipe and the corrugated riser on one side and the corrugated riser on the other side.
[0005] The rain cover device at the door of the ring main unit or distribution cabinet has a vertical transition cloth on the inside of the waterproof cloth, and a connecting plate is provided at the upper end of the vertical cloth. The connecting plate is fixedly connected to the inside of the lintel of the double cabinet door by adhesive or nails.
[0006] The rain cover device at the door of the ring main unit or distribution cabinet has upper folded edges on both sides of the waterproof cloth, and the two upper folded edges are fixed to the semicircles on both sides of the long oval opening of the corrugated pipe.
[0007] The rain-proof device at the door of the ring main unit or distribution cabinet has a fixing rope A and a fixing rope B respectively on the lower left and right sides of the outer side of the waterproof cloth. The fixing rope A and the fixing rope B are respectively connected to the upper outer side of the opened double cabinet door by binding or nailing.
[0008] The rain-shielding device at the door of the ring main unit or distribution cabinet has a fixing rope C at pipe end A at the lower end of one side of the corrugated riser. The fixing rope C is connected to the lower part of one side of the double-leaf cabinet door by binding or nailing. A fixing rope D is provided at pipe end B at the lower end of the corrugated riser on the other side. The fixing rope D is connected to the lower part of the other side of the double-leaf cabinet door by binding or nailing.
[0009] The rain-proof device at the door of the ring main unit or distribution cabinet has an inward concave edge in the middle of the outer edge of the waterproof cloth, which is synchronously concave in the middle of the corrugated pipe.
[0010] The rainproof device at the door of the ring main unit or distribution cabinet is provided, wherein the corrugated pipe is a thickened PE plastic corrugated pipe.
[0011] Based on the above disclosure, the beneficial effects of the present invention are: The rain-shielding device for the door of a ring main unit or distribution cabinet described in this invention utilizes a connecting plate on the inner side of a waterproof cloth to connect to the inner side of the lintel of the double-leaf cabinet door to form a high position. Fixing ropes A and B are respectively fixedly connected to the upper outer side of the double-leaf cabinet door. The waterproof cloth collects and traps rainwater, and the upper folded edges on both sides of the waterproof cloth prevent rainwater from flowing down the door. Rainwater is collected through the elongated oval opening of the corrugated pipe and flows out through one and the other corrugated risers to the lower outer part of the double-leaf cabinet door, preventing rainwater from affecting maintenance and preventing water ingress into the equipment due to splashing rainwater. This invention ensures a safe working environment for maintenance personnel, and its placement inside the ring main unit or distribution cabinet prevents loss. The waterproof cloth of this invention also provides sunshade in summer and snow protection in winter. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the elongated oval opening structure of the bellows of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the waterproof fabric of the present invention; Figure 4 This is a schematic diagram of the installation location of the present invention in a ring main unit or distribution cabinet; In the diagram: 1. Connecting plate; 2. Vertical fabric; 3. Waterproof fabric; 4. Top fold; 5. Fixing rope A; 6. Fixing rope B; 7. Corrugated pipe; 8. One side corrugated vertical pipe; 9. The other side corrugated vertical pipe; 10. Fixing rope C; 11. Pipe end A; 12. Pipe end B; 13. Fixing rope D; 14. Oblong opening; 15. Concave edge; 16. Cabinet top; 17. Double cabinet door; 18. Cabinet body; 19. Door frame. Detailed Implementation
[0013] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to better understand the inventive objectives, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative of possible implementations of the technical solutions of the present invention.
[0014] Combined with appendix Figures 1 to 4 The rainproof device for the door of the ring main unit or distribution cabinet described herein includes a cabinet body 18 and a double-leaf cabinet door 17. A vertical fabric 2 is provided on the inner side of the waterproof fabric 3 for transition. A connecting plate 1 is provided at the upper end of the vertical fabric 2. The connecting plate 1 is fixedly connected to the inner side of the lintel of the double-leaf cabinet door 17 of the cabinet body 18 by adhesive or nails. An inwardly recessed edge 15 is provided in the middle of the outer edge of the waterproof fabric 3. The outer edge of the waterproof fabric 3 is fixed in the elongated oval opening 14 provided on the inner side of the corrugated pipe 7. The concave edge 15 synchronously recesses the middle of the corrugated pipe 7. Upper folded edges 4 are provided on both sides of the waterproof fabric 3. The two upper folded edges 4 are respectively fixed to the semicircles on both sides of the elongated oval opening 14 of the corrugated pipe 7. Fixing ropes A are provided on the lower left and right sides of the outer surface of the waterproof fabric 3. 5 and fixing rope B6, fixing rope A5 and fixing rope B6 are respectively connected to the upper outer side of the opened double cabinet door 17 by binding or nailing. Corrugated riser 8 and corrugated riser 9 are respectively provided at the lower part of both ends of the corrugated pipe 7. Fixing rope C10 is provided at the pipe end A11 at the lower end of the corrugated riser 8. Fixing rope C10 is connected to the lower part of one side of the double cabinet door 17 by binding or nailing. Fixing rope D13 is provided at the pipe end B12 at the lower end of the corrugated riser 9. Fixing rope D13 is connected to the lower part of the other side of the double cabinet door 17 by binding or nailing. After the rainwater is collected by the waterproof cloth 3, the rainwater is diverted through the corrugated pipe 7, the corrugated riser 8 on one side and the corrugated riser 9 on the other side.
[0015] Implement the rain shelter device at the door of the ring main unit or distribution cabinet described in this invention, combined with the attached... Figures 1 to 3In this invention, the corrugated pipe 7 is a thickened PE plastic corrugated pipe, and the waterproof cloth 3 can be made of umbrella fabric; the connecting plate 1 is made of high-temperature resistant plastic board, which is connected to the waterproof cloth 3 by heat bonding; the elongated oval opening 14 of the corrugated pipe 7 can be made by inserting a wooden stick into the corrugated pipe 7 as a support, and then cutting out the elongated oval opening 14 with a blade; to connect the waterproof cloth 3 to the elongated oval opening 14 of the corrugated pipe 7, apply glass glue to the lower outer part of the waterproof cloth 3 and then insert it into the elongated oval opening 14 of the corrugated pipe 7, and ensure that the upper folded edges 4 on both sides of the waterproof cloth 3 are connected to the semicircles at both ends of the elongated oval opening 14, and then use rivets to firmly connect the waterproof cloth 3 and the corrugated pipe 7, and wait for the glass glue to dry completely before use.
[0016] The installation of this invention, in conjunction with the attached... Figures 1 to 4 Place the connecting plate 1 on the upper inner side of the lintel of the double cabinet door 17 of the cabinet body 18, and fix the connecting plate 1 with strong adhesive. At this time, the function of the vertical cloth 2 is to serve as a transition between the connecting plate 1 and the waterproof cloth 3. Then, nail the double cabinet door 17 inside the door with nails on the upper and lower sides near the outside. Use the nail heads of the two upper nails to connect the fixing ropes A5 and B6. Then connect the fixing ropes C10 and D13 at the lower end of the corrugated vertical pipe 8 on one side and the corrugated vertical pipe 9 on the other side to the nail heads of the two lower nails. Then, place two bricks inside the door frame 19 of the cabinet body 18 as backup supports after the double cabinet door 17 is opened.
[0017] The use of this invention does not affect the operation of maintenance in normal weather. If it is raining, the double cabinet door 17 is opened and the waterproof cloth 3 automatically extends. Two bricks are placed on the ground at the bottom of the double cabinet door 17. The two bricks support the door to prevent it from closing. The rainwater is blocked by the waterproof cloth 3 and will not affect the operation. That is, the rainwater flowing down from the top of the cabinet 16 and the rainwater normally collected by the waterproof cloth 3 enter through the elongated oval opening 14 of the corrugated pipe 7, and then the rainwater flows away through one side of the corrugated riser 8 and the other side of the corrugated riser 9.
[0018] The preferred embodiments of the present invention have been described in detail above. However, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to the scope of protection of the present invention. These equivalent forms also fall within the scope defined by the appended claims.
[0019] The parts of this invention not described in detail are prior art.
Claims
1. A rain shelter for the door of a ring main unit or distribution cabinet, comprising a cabinet body (18) and double doors (17), characterized in that: The waterproof cloth (3) is fixed inside the lintel of the double cabinet door (17) of the cabinet body (18). The waterproof cloth (3) is tilted downward. The outer edge of the waterproof cloth (3) is fixed in the elongated oval opening (14) set on the inner side of the corrugated pipe (7). The left and right sides of the waterproof cloth (3) are fixedly connected to the upper part of the outer side of the opened double cabinet door (17). The lower part of both ends of the corrugated pipe (7) is provided with a corrugated riser (8) on one side and a corrugated riser (9) on the other side. After the waterproof cloth (3) collects the rainwater, it is diverted through the corrugated pipe (7), the corrugated riser (8) on one side and the corrugated riser (9) on the other side.
2. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: A vertical cloth (2) is provided on the inner side of the waterproof cloth (3) for transition. A connecting plate (1) is provided on the upper end of the vertical cloth (2). The connecting plate (1) is fixedly connected to the inner side of the lintel of the double cabinet door (17) by adhesive or nails.
3. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: in The waterproof cloth (3) has upper folded edges (4) on both sides, and the two upper folded edges (4) are fixed to the semicircles on both sides of the long oval opening (14) of the corrugated pipe (7).
4. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: in The lower left and right sides of the waterproof cloth (3) are respectively provided with fixing rope A (5) and fixing rope B (6). Fixing rope A (5) and fixing rope B (6) are respectively connected to the upper outer side of the open double cabinet door (17) by binding or nailing.
5. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: A fixing rope C (10) is provided at the pipe end A (11) at the lower end of the corrugated riser (8) on one side. The fixing rope C is connected to the lower part of one side of the double cabinet door (17) by binding or nailing. A fixing rope D (13) is provided at the pipe end B (12) at the lower end of the corrugated riser (9) on the other side. The fixing rope D (13) is connected to the lower part of the other side of the double cabinet door (17) by binding or nailing.
6. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: An inwardly recessed edge (15) is provided in the middle of the outer edge of the waterproof cloth (3) to obtain the synchronous inwardly recessed edge of the middle of the corrugated pipe (7).
7. The rain shelter at the door of the ring main unit or distribution cabinet according to claim 1, characterized in that: The corrugated pipe (7) is a thickened PE plastic corrugated pipe.