CN217335020U

CN217335020U - Horizontal drainage cable pit

Info

Publication number: CN217335020U
Application number: CN202220221424.0U
Authority: CN
Inventors: 陈康华
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-08-30
Anticipated expiration: 2032-01-26

Abstract

The embodiment of the utility model provides a relate to building civil engineering technical field, especially relate to a horizontal drainage cable pit. The transverse drainage cable trench comprises a cable trench body and a cable support. The cable trench is formed by enclosing a bottom plate, a side wall and a cover plate, the bottom plate has a certain gradient with a horizontal plane, a floor drain is arranged at the lowest position of the bottom plate, a one-way hole is formed in the side wall, the floor drain is communicated with the one-way hole, a backflow preventing device is arranged in the one-way hole, and a plurality of cable supports are fixed on the side wall. When the cable trench is filled with water, the water flows into the floor drain along the surface of the inclined bottom plate, and blocks partial silt or sundries through the floor drain, so that the water flows out of the one-way hole. So realized the horizontal drainage of cable pit body, changed the mode of vertical drainage in the tradition, alleviateed the design degree of difficulty of cable pit.

Description

Horizontal drainage cable pit

Technical Field

The embodiment of the utility model provides a relate to building civil engineering technical field, especially relate to a horizontal drainage cable pit.

Background

The cable trench is an underground corridor for laying electric power or telecommunication cable facilities, is also a peripheral structure of cables, has a rectangular, circular, arched and other section patterns, and is widely applied to the electric power and civil engineering fields, such as power stations and large public buildings and municipal works. Once water enters the cable trench, the hidden trouble of electric leakage of a high-voltage cable in the trench is easily caused, meanwhile, the total weight of the trench body is increased, the stress at the bottom of the trench is aggravated, and the stress and the settlement of the trench body are adversely affected. Therefore, a drainage system needs to be arranged in the cable trench to drain water in the trench in time.

The existing cable trench drainage scheme often adopts a longitudinal drainage scheme. That is, the longitudinal direction of the trench body is used as the drainage direction of the cable trench, the slope gradient in the cable trench is utilized, the drain pipe is arranged at the lowest position and connected with the water collecting well, and the water in the trench is drained by utilizing the water collecting well to collect water. However, at present, the solution still has the following disadvantages: in a thermal power plant, a cable trench is often as long as hundreds of meters, so the drainage distance of a longitudinal drainage scheme is very long, and under the condition that the drainage gradient is not changed, the longer the drainage distance is, the larger the height difference in the trench is. Thus, the elevation difference in the trench is large in the longitudinal drainage scheme. This not only has increased the cost of ditch body, causes the catchment area big moreover, and the water shutoff risk is high to need to set up more sump pit. Moreover, cable ducts in the power plant are often criss-cross, which causes difficulty in calculating elevation of the duct bottom, small fault-tolerant probability and high error probability, increases difficulty for design cooperation among various specialties, and increases design workload.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a horizontal drainage cable pit, the design degree of difficulty that reduces the cable pit.

The transverse drainage cable trench comprises a cable trench body and a cable bracket. The cable trench body is formed by enclosing a bottom plate, a side wall and a cover plate, the bottom plate and a horizontal plane form a certain gradient, a floor drain is arranged at the lowest part of the bottom plate, a one-way hole is formed in the side wall, the floor drain is communicated with the one-way hole, and a backflow preventing device is arranged in the one-way hole; a plurality of cable supports are fixed to the side wall.

Optionally, the bottom plate is provided with a bulge between the two side walls, the bulge separates the bottom plate into two inclined planes, and the joint of the bottom plate and the side walls is lower than the bulge.

Optionally, the top of the side wall is provided with a mounting groove, and the cover plate is mounted in the mounting groove.

Optionally, the cable support is spaced from the base plate.

Optionally, the floor drain is provided with a fence at the opening of the bottom plate.

Optionally, a cushion layer is arranged on one side of the bottom plate, which is away from the cover plate.

The utility model discloses horizontal drainage cable pit compares with prior art, has following beneficial effect:

the transverse drainage cable trench comprises a cable trench body and a cable support. The cable trench is formed by enclosing a bottom plate, a side wall and a cover plate, the bottom plate and the horizontal plane are at a certain gradient, a floor drain is arranged at the lowest position of the bottom plate, a one-way hole is formed in the side wall, the floor drain is communicated with the one-way hole, a backflow preventing device is arranged in the one-way hole, and a plurality of cable supports are fixed on the side wall. When the cable trench is filled with water, the water flows into the floor drain along the surface of the inclined bottom plate, and blocks partial silt or sundries through the floor drain, so that the water flows out of the one-way hole. So realized the horizontal drainage of cable pit body, changed the mode of vertical drainage in the tradition, alleviateed the design degree of difficulty of cable pit, reduced ditch body cost, more be favorable to the guarantee time limit for a project to, this case has used one-way outlet, can effectively drain away the interior water of ditch, and prevent that the outer water of ditch from pouring into the ditch in.

Drawings

Fig. 1 is a view schematically illustrating a horizontal drainage cable trench according to an embodiment of the present invention.

Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.

In the figure, 10, a cable trench body; 11. a base plate; 12. a side wall; 13. a cover plate; 14. a floor drain; 15. a one-way hole; 16. a fence; 17. mounting grooves;

20. a cable holder;

30. and (5) cushion coating.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Please refer to fig. 1 and fig. 2, which show a schematic view of a horizontal drainage cable trench and a schematic cross-sectional view a-a according to an embodiment of the present invention, the horizontal drainage cable trench includes a cable trench body 10 and a cable support 20. The cable trench body 10 is enclosed by a bottom plate 11, a side wall 12 and a cover plate 13. In order to allow the water in the trench to flow and be discharged in a certain direction (arrow direction in the figure), the bottom plate 11 is inclined with respect to the horizontal plane, in other words, the bottom plate 11 is disposed at an acute angle with respect to the horizontal plane. It will be understood that the purpose of the bottom plate 11 is to guide the water to a fixed place, and the present invention is not limited thereto. The lowest part of the bottom plate 11 is provided with a floor drain 14, and the floor drain 14 is used for collecting water. The side wall 12 is provided with a one-way hole 15, the floor drain 14 is communicated with the one-way hole 15, and the one-way hole 15 can also be arranged on the bottom plate 11. Preferably, the one-way hole 15 is provided with anti-backflow means (not shown), of the type of a one-way valve or the like. In addition, the cable holder 20 is fixedly mounted to the side wall 12, and the cable holder 20 serves to receive a cable.

The above is a technical solution of one-way drainage, and a technical solution of two-way drainage will be given below. The bottom plate 11 is provided with a bulge (not shown) between the two side walls 12, the bulge separates the bottom plate 11 into two inclined surfaces, and the bulge is the highest point of the two inclined surfaces. The joint of the bottom plate 11 and the side wall 12 is lower than the bulge, and the floor drains 14 are respectively arranged at the joint of the bottom plate 11 and the two side walls 12. As mentioned before, the water flows into the floor drain 14 along two inclined planes. Then, two floor drains 14 can communicate, and rivers converge the discharge, or discharge respectively, the utility model discloses do not make the restriction here. In order to prevent large sundries or partial silt from blocking the one-way hole 15, the floor drain 14 is provided with a fence 16 at the opening of the bottom plate 11, and the fence 16 can intercept partial sundries.

Further, the top of the side wall 12 is provided with a mounting groove 17, and the cover plate 13 is mounted in the mounting groove 17. And the cover plate 13 is disassembled and assembled, so that the maintenance of the cable trench or the cleaning of sundries in the cable trench can be realized. It will be appreciated that in other embodiments, the bottom of the mounting groove 17 may be partially level with the external ground.

The cable holder 20 may have any shape, and serves to hold a cable. In this embodiment, the cable holder 20 is an angle steel, which is a steel plate bent into two angled steel plates. In fact, the cable support 20 is spaced from the base plate 11 in order to allow the cable to be at a certain height from the body of water.

In addition, a cushion layer 30 is arranged on one side of the bottom plate 11, which is far away from the cover plate 13, and the cushion layer 30 is the foundation of the cable trench, as required by foundation stabilization and site construction.

When water enters the cable trench, the water flows into the floor drain 14 along the surface of the inclined bottom plate 11, part of silt or impurities are intercepted by the floor drain 14, and the water flows out of the one-way hole 15. So realized the horizontal drainage of cable pit body 10, changed the mode of vertical drainage in the tradition, alleviateed the design degree of difficulty of cable pit to reduce drainage length, reduced the catchment area, reduced ditch body cost, more be favorable to the guarantee time limit for a project, and, used one-way outlet this case, can effectively drain away the interior water of ditch, and prevented that the outer water of ditch from pouring into the ditch.

To sum up, the application the utility model discloses after horizontal drainage cable pit, horizontal drainage mode is compared in vertical drainage mode, has shortened drainage length greatly. Therefore, in the transverse drainage scheme, the drainage length is shorter, so the height drop in the ditch is not changed, and the cost of the ditch body is greatly reduced. In addition, the transverse drainage scheme has small water collection area, and the floor drain 14 can be used as a miniature water collection device, so that a water collection well can be omitted, and the manufacturing cost is greatly reduced. Because the clear height is almost unchangeable in the ditch of horizontal drainage scheme, and the ditch bottom difference of height is less, often only has the difference of millimeter level, and this will reduce the work load of engineering drawing design, can not cause the accumulative total of error moreover, is favorable to the cooperation between each specialty of design trade, has guaranteed the time limit for a project in the at utmost. It is also worth mentioning that the anti-suck-back device is used in the one-way hole 15, so that the water in the ditch can be effectively drained away, and the water outside the ditch is prevented from being poured into the ditch. The floor drain 14 effectively prevents sundries or sand in the ditch from entering the drainage hole to cause blockage, and ensures the smooth drainage of the ditch body.

It should be noted that the preferred embodiments of the present invention are described in the specification and the drawings, but the present invention can be realized in many different forms, and is not limited to the embodiments described in the specification, and these embodiments are not provided as additional limitations to the present invention, and are provided for the purpose of making the understanding of the disclosure of the present invention more thorough and complete. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention; further, it will be apparent to those skilled in the art that modifications and variations can be made in the light of the above teachings, and all such modifications and variations are intended to be within the scope of the present invention.

Claims

1. A transverse cable trench, comprising:

the cable trench body is formed by enclosing a bottom plate, a side wall and a cover plate, the bottom plate and a horizontal plane have a certain gradient, the lowest part of the bottom plate is provided with a floor drain, the side wall is provided with a one-way hole, the floor drain is communicated with the one-way hole, and the one-way hole is provided with an anti-backflow device; and

a plurality of cable brackets secured to the side walls.

2. The transverse trench drain of claim 1 wherein said floor has a ridge between said sidewalls, said ridge separating said floor into two inclined surfaces, said floor being connected to said sidewalls at a location lower than said ridge.

3. The lateral cable drainage trench of claim 1, wherein a mounting groove is formed at a top of the sidewall, and the cover plate is mounted to the mounting groove.

4. The lateral drain trench of claim 1, wherein the cable support is spaced from the floor.

5. The lateral cable trench according to claim 1, wherein the floor drain is provided with a fence at the opening of the floor.

6. The lateral cable trench according to any one of claims 1 to 5, wherein a side of the bottom plate facing away from the cover plate is provided with a cushion.