Waterproof well lid for electric power

Abstract

The utility model provides a waterproof well lid for electric power, which is arranged at the mouth of an electric power well, and relates to the technical field of municipal facilities, the waterproof well lid for electric power comprises a support and a waterproof inner lid, the support is annular and coaxially arranged in the mouth of the electric power well, the support is fixedly arranged on the wall of the electric power well and is in sealing fit with the wall of the electric power well, and the waterproof inner lid is erected on the support. And the outer edge of the waterproof inner cover is in sealing fit with the support. The waterproof well lid for the electric power can effectively improve the waterproof performance of the electric power calandria and the electric power tunnel.

Description

Technical Field

[0001] This utility model relates to the field of municipal facilities technology, and in particular to a waterproof manhole cover for power supply. Background Technology

[0002] Electricity ducts and tunnels are underground structures used to house and protect power cables, and to provide space for cable laying, maintenance, branching, and other operations. Electricity manhole covers are plates that cover the opening of electrical manholes to seal them and ensure safety.

[0003] As the surface structure for power ducts and tunnels, power manhole covers are in constant contact with the outside environment. In existing technologies, the design of power manhole covers generally considers robustness, and the required technical indicators are mostly compressive strength, with no requirements for waterproof performance.

[0004] However, with the expansion of the laying scope of power ducts and tunnels, more and more power ducts and tunnels need to operate in humid and rainy environments. The waterproof performance of power manhole covers directly determines whether water can be carried out inside the inspection wells and cable tunnels of power ducts (power tunnels), which not only affects the lifespan of the cables but also the safety of maintenance operations.

[0005] In view of this, based on years of experience in production and design in this and related fields, the inventor has designed a waterproof manhole cover for power plants through repeated experiments in order to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide a waterproof manhole cover for power applications, which can effectively improve the waterproof performance of power pipelines and power tunnels.

[0007] To achieve the above objectives, this utility model proposes a waterproof manhole cover for power applications, which is installed at the opening of a power well. The waterproof manhole cover includes a support and a waterproof inner cover. The support is annular and coaxially disposed inside the well opening. The support is fixedly installed on the well wall of the power well and is sealed to the well wall. The waterproof inner cover is placed on the support, and the outer edge of the waterproof inner cover is sealed to the support.

[0008] As described above, in the waterproof manhole cover for power applications, the support has a radially inwardly protruding limiting step, and the outer edge of the waterproof inner cover is provided with an annular limiting groove that aligns with the limiting step.

[0009] As described above, in the waterproof manhole cover for power applications, an annular water-stop strip is provided on the limiting step, and the water-stop strip and the groove wall of the annular limiting groove are sealed together.

[0010] The waterproof manhole cover for power applications described above includes a waterproof skirt on the outer edge of the inner waterproof cover, which is sealed to the manhole wall.

[0011] The waterproof manhole cover for power applications described above, wherein the waterproof skirt is a rubber skirt.

[0012] The waterproof manhole cover for power supply as described above, wherein the top surface of the waterproof inner cover is provided with at least one handle.

[0013] The waterproof manhole cover for power applications described above, wherein the waterproof inner cover is a waterproof inner cover made of composite lightweight material.

[0014] The waterproof manhole cover for power supply as described above further includes a support frame. The support frame has multiple embedded parts, which are arranged sequentially and spaced apart along the circumferential direction of the manhole opening. Each embedded part is fixedly connected to the wall of the power manhole, and the support is supported on the multiple embedded parts.

[0015] The waterproof manhole cover for power applications described above, wherein the support and each of the embedded parts are fixedly connected by a snap-fit ​​structure.

[0016] As described above, in the waterproof manhole cover for power applications, one end of the embedded part is embedded in the manhole wall, and the other end of the embedded part protrudes from the manhole wall and is used to support the support.

[0017] Compared with the prior art, the present invention has the following features and advantages:

[0018] The waterproof manhole cover for power systems proposed in this utility model can be installed under the existing manhole cover of power manholes (power inspection manholes) for dedicated waterproofing. Through the sealing fit between the support and the manhole wall, and between the support and the waterproof inner cover, rainwater at the manhole opening can be prevented from entering power ducts and tunnels. It is suitable for power ducts and tunnels in different areas, improving the waterproofing of power ducts and tunnels at power inspection manholes. It is easy to open daily and facilitates maintenance and replacement. Attached Figure Description

[0019] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0020] Figure 1 This is a schematic diagram of the waterproof manhole cover for power applications proposed in this utility model;

[0021] Figure 2 This is a plan view of the shaft of the power well proposed in this utility model;

[0022] Figure 3 This is a top view of the waterproof inner cover in this utility model;

[0023] Figure 4 for Figure 3 Sectional view along line AA;

[0024] Figure 5 for Figure 3 Sectional view along the BB direction.

[0025] Explanation of reference numerals in the attached figures

[0026] 100. Waterproof manhole cover for power supply; 10. Support;

[0027] 11. Limiting step; 12. Waterstop strip;

[0028] 20. Waterproof inner cover; 21. Limiting ring groove;

[0029] 22. Flexible skirt hem; 23. Handle;

[0030] 40. Support frame; 41. Embedded parts;

[0031] 200. Power well; 300. Protective outer cover. Detailed Implementation

[0032] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0033] like Figures 1 to 5 As shown, this utility model proposes a waterproof manhole cover 100 for power applications, which is installed at the opening of a power well 200. The waterproof manhole cover 100 includes a support 10 and a waterproof inner cover 20. The support 10 is annular and coaxially disposed inside the well opening. The support 10 is fixedly installed on the well wall of the power well 200 and is sealed to the well wall. The waterproof inner cover 20 is placed on the support 10, and the outer edge of the waterproof inner cover 20 is sealed to the support 10.

[0034] The waterproof manhole cover 100 for power systems proposed in this utility model can be installed under the existing manhole cover of a power well (power inspection well) for dedicated waterproofing. Through the sealing fit between the support 10 and the wall of the power well 200, and between the support 10 and the waterproof inner cover 20, rainwater at the well opening can be prevented from entering the power duct and power tunnel through the power well 200. It is suitable for power ducts and power tunnels in different areas, improves the waterproofing of power ducts and power tunnels at power inspection wells, is easy to open daily, and facilitates maintenance and replacement.

[0035] In an optional embodiment of this utility model, the support 10 has a radially inwardly protruding limiting step 11, and the outer edge of the waterproof inner cover 20 is provided with an annular limiting groove 21 that aligns with the limiting step 11. The waterproof inner cover 20 achieves a sealed fit with the limiting step 11 of the support 10 through the annular limiting groove 21, thereby improving waterproofness and anti-slip properties, and making it easy to open and replace.

[0036] In an optional embodiment of this implementation, an annular waterstop strip 12 is provided on the limiting step 11, and the waterstop strip 12 is sealed to the groove wall of the annular limiting groove 21. The cooperation between the waterstop strip 12 and the annular limiting groove 21 further ensures the seal between the waterproof inner cover 20 and the support 10, preventing rainwater from entering the interior of the power well 200.

[0037] In an optional example, the waterstop strip 12 is a rubber waterstop strip, which not only enhances the sealing performance but also has an anti-slip effect.

[0038] In one optional embodiment of this utility model, the outer edge of the waterproof inner cover 20 is also provided with a waterproof skirt 22, which is sealed to the well wall to further ensure the sealing effect of the waterproof inner cover 20 on the power well 200.

[0039] In one optional example of this embodiment, the waterproof skirt 22 is a rubber skirt, which not only enhances the sealing performance but also has an anti-slip effect.

[0040] In an optional embodiment of this utility model, a handle 23 is provided on the top surface of the waterproof inner cover 20 to facilitate the disassembly, assembly, and maintenance of the waterproof inner cover 20.

[0041] In an optional example, the waterproof inner cover 20 is provided with two handles 23, which are spaced apart to facilitate operation with both hands.

[0042] In one optional embodiment of this utility model, the waterproof inner cover 20 is a waterproof inner cover made of composite lightweight material.

[0043] In one optional embodiment of this utility model, the support 10 is a rubber support.

[0044] In an optional embodiment of this utility model, the waterproof manhole cover 100 for power supply also includes a support frame 40. The support frame 30 has a plurality of embedded parts 41. The plurality of embedded parts 31 are arranged sequentially at intervals along the circumferential direction of the manhole opening. Each embedded part 31 is fixedly connected to the wall of the power well 200. The support 10 is supported on the plurality of embedded parts 31.

[0045] In an alternative embodiment, the support frame 40 has eight embedded parts 31, which are evenly distributed along the circumferential direction of the well wall.

[0046] Preferably, the embedded part 31 is a steel embedded part.

[0047] In one optional embodiment of this implementation, the support 10 is fixedly connected to each embedded part 31 by a snap-fit ​​structure, which makes disassembly and replacement convenient.

[0048] In an optional embodiment of this implementation, one end of the embedded part 31 is embedded in the well wall, and the other end of the embedded part 31 protrudes from the well wall and is used to support the support 10, so as to enhance the firmness of the connection between the embedded part 31 and the well wall.

[0049] In one optional embodiment of this utility model, a protective outer cover 300 is provided at the opening of the power well 200. The protective outer cover 300 is located above the waterproof inner cover 20 and plays a protective role for the waterproof inner cover 20, avoiding the influence of the external environment on the waterproof inner cover 20 and ensuring the service life of the waterproof inner cover 20.

[0050] In an optional example of this implementation, the protective outer cover 300 can be an existing power well cover, and the support 10, waterproof inner cover 20 and support frame 40 can be directly installed inside the existing power well 200.

[0051] The waterproof manhole cover 100 for power applications proposed in this utility model is a special waterproof cover that can be used for power ducts and tunnels in different areas. It improves the waterproofness of power ducts and tunnels at power wells (power inspection wells), is easy to open in daily use, and is easy to maintain and replace.

[0052] The waterproof manhole cover 100 for power applications proposed in this utility model has a good waterproof effect, which can improve the service life of power facilities along the line and improve the working environment of maintenance workers.

[0053] The waterproof manhole cover 100 for power applications proposed in this utility model has a simple structure and can be mass-produced.

[0054] The detailed explanations of the above embodiments are intended only to explain the present invention so as to facilitate a better understanding of the present invention. However, these descriptions should not be construed as limiting the present invention for any reason. In particular, the various features described in different embodiments can be arbitrarily combined with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood to be applicable to any embodiment, and not limited to the described embodiments.

Claims

1. A waterproof manhole cover for power supply, installed at the opening of a power well, characterized in that, The waterproof manhole cover for power supply includes a support and a waterproof inner cover. The support is annular and coaxially disposed inside the manhole opening. The support is fixedly installed on the manhole wall of the power supply manhole and is sealed to the manhole wall. The waterproof inner cover is placed on the support, and the outer edge of the waterproof inner cover is sealed to the support.

2. The waterproof manhole cover for power applications as described in claim 1, characterized in that, The support has a radially convex limiting step, and the outer edge of the waterproof inner cover is provided with an annular limiting groove that aligns with the limiting step.

3. The waterproof manhole cover for power applications as described in claim 2, characterized in that, The limiting step is provided with an annular water-stop strip, which is sealed to the groove wall of the annular limiting groove.

4. The waterproof manhole cover for power applications as described in claim 1, characterized in that, The outer edge of the waterproof inner cover is also provided with a waterproof skirt, which is sealed to the well wall.

5. The waterproof manhole cover for power applications as described in claim 4, characterized in that, The waterproof skirt is made of rubber.

6. The waterproof manhole cover for power applications as described in claim 1, characterized in that, The top surface of the waterproof inner cover is provided with at least one handle.

7. The waterproof manhole cover for power applications as described in claim 1, characterized in that, The waterproof inner cover is made of composite lightweight material.

8. The waterproof manhole cover for power applications as described in claim 1, characterized in that, The waterproof manhole cover for power supply also includes a support frame, which has multiple embedded parts. The multiple embedded parts are arranged sequentially and spaced apart along the circumference of the manhole opening. Each embedded part is fixedly connected to the wall of the power manhole, and the support is supported on the multiple embedded parts.

9. The waterproof manhole cover for power applications as described in claim 8, characterized in that, The support and each of the embedded parts are fixedly connected by a snap-fit ​​structure.

10. The waterproof manhole cover for power applications as described in claim 8, characterized in that, One end of the embedded part is embedded in the well wall, and the other end of the embedded part protrudes from the well wall and is used to support the support.

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