Cable trench drainage structure
By embedding drainage trench on the top of the cable trench and setting up an inclined screen and float, the problem of blockage of the cable trench drainage structure in strong convective weather is solved, and the timely discharge and smooth water accumulation is achieved. It is suitable for the cable trench drainage structure of the substation site.
Patent Information
- Application Number
- CN202422464055.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing cable trench drainage structure is prone to blockage in strong convection weather, especially in remote substations that are difficult to maintain.
A drainage trench is embedded at the top of the cable trench, and a drainage channel intersects with the cable laying channel at the top of the drainage trench, and a downward inclined first screen is provided in the drainage channel. Combined with the floating barrel and the second screen design, the drainage channel structure is optimized to prevent debris from being blocked.
It effectively avoids blockage of drainage channels, ensures timely discharge of water in the cable trench, and reduces maintenance difficulties. It is suitable for substation sites where multiple cable trenches are cross-connected.
Smart Images
Figure CN223176869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power facilities, in particular to a cable trench drainage structure. Background Art
[0002] At present, the cable trench laying scheme is widely adopted in substations. Since the top of the cable trench is generally about 100 mm higher than the site, with more and more cable trenches arranged in the substation site, it is easy to form a drainage closed area, resulting in the rainwater in the area being unable to drain out.
[0003] To avoid regional waterlogging, generally, a reinforced concrete drainage trough with a drainage channel is set at a certain distance during the construction of the cable trench to help drain water. However, with the increase of strong convective weather in recent years, when the rainfall is large in a short time and the rainwater carries a lot of fallen leaves and other debris in the drainage closed area through the drainage channel, it is easy to be blocked, affecting normal drainage. Especially for some substations located in remote areas, it is more troublesome to maintain. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a cable trench drainage structure, which can timely drain the accumulated water in the drainage closed area and avoid drainage blockage.
[0005] To solve the above technical problem, the utility model provides a cable trench drainage structure, including a cable trench, a cover plate and a drainage trough. A cable laying channel is arranged at the top of the cable trench, the cover plate covers the cable laying channel, the drainage trough is embedded in the top of the cable trench, and a drainage channel intersecting with the cable laying channel is arranged at the top of the drainage trough. The drainage channel penetrates through the opposite outer side walls of the cable trench.
[0006] Wherein, a first screen is arranged in the drainage channel, and the first screen is inclined downward towards the water inlet end of the drainage channel.
[0007] As an improvement of the above scheme, a floating cylinder is further included, and the floating cylinder is suspended at the water inlet end of the drainage trough.
[0008] As an improvement of the above scheme, a second screen is further arranged in the drainage channel. The second screen is connected to the top of the first screen, and a preset distance is arranged between the second screen and the top of the drainage trough.
[0009] As an improvement of the above scheme, the included angle between the second screen and the horizontal direction is smaller than the included angle between the first screen and the horizontal direction.
[0010] As an improvement of the above scheme, the width of the drainage channel gradually narrows from both ends to the middle.
[0011] As an improvement of the above solution, the width of the drainage channel gradually decreases from bottom to top.
[0012] As an improvement of the above solution, the bottom surface of the drainage channel is inclined downward toward the water outlet end of the drainage channel.
[0013] As an improvement of the above solution, the tops of the cable trench and the drainage trough are flush.
[0014] As an improvement of the above solution, the outer side wall of the cable trench protrudes toward the substation site, and the bottom surface of the drainage trough is flush with the substation site.
[0015] As an improvement of the above solution, at least two of the cable trenches are cross-connected and arranged in the substation site.
[0016] Implementing the present utility model has the following beneficial effects:
[0017] The present utility model discloses a drainage structure for a cable trench. By embedding a drainage trough at the top of the cable trench, a drainage channel intersecting with the cable laying channel is provided at the top of the drainage trough. At the same time, a first sieve is provided and inclined downward toward the water inlet end of the drainage channel. The water inlet end of the drainage trough is closely installed against the drainage closed area of the substation, which can help guide the sundries in the accumulated water to gather at the top of the first sieve, avoid the sundries from blocking the water inlet end of the drainage channel, ensure the smooth drainage at the bottom of the drainage channel, and help drain the rainwater in the drainage closed area in time. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of an embodiment of a drainage structure for a cable trench of the present utility model;
[0019] Figure 2 is Figure 1 the top view of;
[0020] Figure 3 is a schematic structural diagram of the drainage trough;
[0021] Figure 4 is a schematic structural diagram of the drainage trough, the first sieve, the second sieve and the floating drum. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0023] As shown in Figures 1 to 4As shown in the figure, an embodiment of a drainage structure for a cable trench is disclosed in the present utility model, which includes a cable trench 1, a cover plate 2, and a drainage trough 3. A cable laying channel 11 is provided at the top of the cable trench 1, the cover plate 2 covers the cable laying channel 11, the drainage trough 3 is embedded in the top of the cable trench 1, and a drainage channel 31 intersecting with the cable laying channel 11 is provided at the top of the drainage trough 3. The drainage channel 31 penetrates through the opposite outer side walls 12 of the cable trench 1. Among them, a first screen 4 is provided in the drainage channel 31, and the first screen 4 is inclined downward towards the water inlet end a of the drainage channel 31.
[0024] In this embodiment, by embedding the drainage trough 3 in the top of the cable trench 1, a drainage channel 31 intersecting with the cable laying channel 11 is provided at the top of the drainage trough 3, and at the same time, a first screen 4 inclined downward towards the water inlet end a of the drainage channel 31 is provided. The water inlet end a of the drainage trough 3 is closely installed against the drainage closed area of the substation, which can help guide the sundries in the accumulated water to gather at the top of the first screen 4, avoid the sundries from blocking the water inlet end a of the drainage channel 31, ensure the smooth drainage at the bottom of the drainage channel 31, and help drain the rainwater in the drainage closed area in time.
[0025] The drainage structure of the cable trench 1 in this embodiment is applicable to the occasion where at least two cable trenches 1 intersect and communicate in the substation site, forming a drainage dead corner in the substation site, that is, the drainage closed area. The drainage trough 3 can be prefabricated and configured with steel bars, without increasing the on-site construction difficulty.
[0026] Figure 1 The horizontal dotted line shown in the figure is the ground of the substation site. The outer side wall 12 of the cable trench 1 protrudes towards the substation site, and the bottom surface of the drainage trough 3 is flush with the substation site to help completely drain the accumulated water in the closed area.
[0027] In addition, a second screen 5 is also provided in the drainage channel 31 of this embodiment. The second screen 5 is connected to the top of the first screen 4, and a preset distance is provided between the second screen 5 and the top of the drainage trough 3. The included angle between the second screen 5 and the horizontal direction is smaller than the included angle between the first screen 4 and the horizontal direction, or the second screen 5 can be set horizontally. When the rainfall decreases, the sundries in the drainage channel 31 will deposit on the second screen 5, avoiding the blockage at the bottom of the drainage channel 31 and ensuring the normal drainage below the second screen 5. The second screen 5 is covered by the cover plate 2, and by regularly opening the cover plate 2, the deposits on the second screen 5 can be conveniently removed.
[0028] Preferably, in this embodiment, the drainage channel 31 is set to a structure with the width gradually narrowing from both ends to the middle, which can help increase the water flow velocity in the drainage channel 31 and help quickly drain away the accumulated water.
[0029] Preferably, the drainage structure of the cable trench 1 in this embodiment further includes a buoy 6, and the buoy 6 is suspended at the water inlet end a of the drainage trough 3. The weight of the buoy 6 should not be too heavy, and there is a distance of about 1 cm between the bottom of the buoy 6 and the first screen 4, so that the drainage trough 3 can still drain smoothly under light rainfall. When the rainfall is heavy, the buoy 6 can float up as the water accumulation in the drainage closed area increases, helping to bring the suspended debris floating to the water inlet end a of the drainage trough 3 to the water surface of the first screen 4.
[0030] More preferably, the width of the drainage channel 31 gradually decreases from bottom to top, so that the water passing space at the bottom of the drainage channel 31 is large, increasing the water passing capacity. At the same time, the water flow velocity at the top is large, which is convenient for flushing the debris near the buoy 6 to the first screen 4 and the second screen 5 smoothly.
[0031] In addition, the bottom surface of the drainage channel 31 is inclined downward towards the water outlet end b of the drainage channel 31, which helps to drain water quickly. At the same time, it can wash the sediment at the bottom to avoid siltation at the bottom of the drainage channel 31.
[0032] In this embodiment, it is preferably to set the cable trench 1 and the drainage trough 3 to have a structure with flush tops, so that the same cover plate 2 can cover the drainage trough 3 and other positions of the cable trench 1, without affecting the overall flatness and beauty of the cable trench 1, and without increasing the types of the cover plates 2 of the cable trench 1.
[0033] The above-disclosed is only a preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.
Claims
1. A cable trench drainage structure, characterized in that, It includes a cable trench, a cover plate and a drainage groove. A cable laying channel is provided at the top of the cable trench. The cover plate covers the cable laying channel. The drainage groove is embedded in the top of the cable trench, and a drainage channel intersecting with the cable laying channel is provided at the top of the drainage groove. The drainage channel penetrates through the opposite outer side walls of the cable trench; Wherein, a first screen is provided in the drainage channel, and the first screen is inclined downward towards the water inlet end of the drainage channel.
2. The cable trench drainage structure according to claim 1, characterized in that, It further includes a float, and the float is suspended at the water inlet end of the drainage groove.
3. The cable trench drainage structure according to claim 1 or 2, characterized in that, A second screen is further provided in the drainage channel. The second screen is connected to the top of the first screen, and a preset distance is provided between the second screen and the top of the drainage groove.
4. The cable trench drainage structure according to claim 3, wherein, The included angle between the second screen and the horizontal direction is smaller than the included angle between the first screen and the horizontal direction.
5. The cable trench drainage structure according to claim 1, characterized in that, The width of the drainage channel gradually narrows from both ends to the middle.
6. The cable trench drainage structure according to claim 1 or 5, characterized in that, The width of the drainage channel gradually decreases from bottom to top.
7. The cable trench drainage structure according to claim 1, characterized in that, The bottom surface of the drainage channel is inclined downward towards the water outlet end of the drainage channel.
8. The cable trench drainage structure according to claim 1, characterized in that, The tops of the cable trench and the drainage groove are flush.
9. The cable trench drainage structure according to claim 1, characterized in that, The outer side wall of the cable trench protrudes towards the substation site, and the bottom surface of the drainage groove is flush with the substation site.
10. The cable trench drainage structure according to claim 1, characterized in that, At least two of the cable trenches are cross-connected and arranged in the substation site.