Self-draining cable trench

Abstract

This utility model relates to the technical field of cable trenches and discloses a self-draining cable trench, including a trench body with a bottom plate extending along the length of the trench body. The bottom plate has a drainage structure. The trench body encloses a cable laying cavity, and water in the cavity is discharged through the drainage structure. In this way, when cables are laid in the cavity, the drainage structure effectively and promptly drains and collects any seepage water, reducing the impact of seepage on substation production and maintenance. The device is simple and has high drainage efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of cable trenches, and more specifically, to self-draining cable trenches. Background Technology

[0002] In substations, cable trenches are used to lay cables, protecting them from mechanical damage, chemical corrosion, and biological attack. They also facilitate cable laying, maintenance, repair, and capacity expansion. The importance of cable trenches for the stable operation of substations is self-evident. However, during heavy rainfall, rainwater can easily flow into the cable trenches. If this rainwater cannot be drained in time, it will affect the normal use of cables and even the operation of the substation.

[0003] In existing technologies, cable trenches are often waterproofed by designing the sidewalls of the cable trench to be higher than the ground, but this method is not effective when faced with heavy rainfall. Utility Model Content

[0004] The purpose of this invention is to provide a self-draining cable trench, which aims to solve the problem that rainwater in cable trenches cannot be drained in a timely manner in the prior art.

[0005] This utility model is implemented as follows: a self-draining cable trench includes a trench body, the bottom of which has a base plate that extends along the length of the trench body and is provided with a drainage structure; the trench body surrounds and forms a cable laying cavity, and the water in the cable laying cavity is discharged from the cable laying cavity through the drainage structure.

[0006] Furthermore, the drainage structure includes multiple drainage outlets arranged on the base plate, the multiple drainage outlets being spaced apart along the extension direction of the base plate, each of the multiple drainage outlets being connected to a longitudinally arranged first water supply pipe, and each of the multiple first water supply pipes being connected to a second water supply pipe.

[0007] Furthermore, one end of the first water supply pipe is connected to the drain outlet, and the other end of the first drain pipe is bent and extends laterally to form a transverse section, the outer end of which is connected to the second water supply pipe.

[0008] Furthermore, one end of the second water supply pipe is arranged in a closed manner, and the other end of the second water supply pipe is connected to a drainage well.

[0009] Furthermore, the base plate and the second water pipe are arranged to extend at an incline toward the water collection well.

[0010] Furthermore, the drain outlet has a filter structure, which includes a filter plate with filter holes, and the filter plate is arranged horizontally in the drain outlet.

[0011] Furthermore, the base plate has a recessed hanging groove, which is arranged around the outer periphery of the drain outlet and is connected to the drain outlet.

[0012] The filter structure includes, in a radial direction from the outside to the inside, an outer hanging ear, a hanging ear connecting plate, and an inner hanging ear. The hanging ear connecting plate connects the outer hanging ear and the inner hanging ear. The outer hanging ear is embedded in the hanging ear groove, and the hanging ear connecting plate is fixedly arranged in the hanging ear groove. One end of the inner hanging ear is connected to the hanging ear connecting plate, and the other end of the inner hanging ear is embedded in the drain outlet and connected to the filter plate.

[0013] Furthermore, the base plate is connected to longitudinally arranged sidewalls on both sides, the sidewalls extending along the length of the cable trench, and the two sidewalls and the base plate enclose the cable routing cavity.

[0014] Furthermore, the side wall panel and the bottom plate are integrally formed.

[0015] Furthermore, the side wall panels and the bottom plate are formed independently.

[0016] Compared with the prior art, the self-draining cable trench provided by this utility model lays cables in the cable cavity and effectively drains and collects seepage water in the cable cavity in a timely manner through the drainage structure, reducing the impact of seepage water on the production and operation and maintenance of substations. The device is simple and has high drainage efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the self-draining cable trench provided by this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the second water supply pipe and the water collection well provided by this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the drain outlet provided by this utility model;

[0020] Figure 4 This is a top view schematic diagram of the filter structure provided by this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the interception net cylinder provided by this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-5 The image shown is a preferred embodiment of the present invention.

[0026] The self-draining cable trench includes a trench body 100, the bottom of which has a base plate 110. The base plate 110 extends along the length of the trench body 100 and is provided with a drainage structure. The trench body 100 encloses and forms a cable laying cavity for cable laying, and the water in the cable laying cavity is discharged from the cable laying cavity through the drainage structure.

[0027] The self-draining cable trench provided above, by laying cables in the cable cavity, uses a drainage structure to promptly and effectively discharge and collect seepage water entering the cable trench of the substation, reducing the impact of seepage water on the production and operation and maintenance of the substation. The device is simple and has high drainage efficiency.

[0028] In this embodiment, the base slab 110 is formed by setting up a template and pouring concrete.

[0029] In a preferred embodiment, the base plate 110 is prefabricated in a factory.

[0030] Specifically, the drainage structure includes multiple drain outlets 111 arranged on the base plate 110. The multiple drain outlets 111 are spaced apart along the extension direction of the base plate 110. Each of the multiple drain outlets 111 is connected to a longitudinally arranged first water supply pipe 200, and all of the multiple first water supply pipes 200 are connected to a second water supply pipe 220. Under the action of gravity, water is accelerated downward through the first water supply pipes 200 and discharged outward along the second water supply pipes 220.

[0031] In some embodiments, the diameters of the first water supply pipe 200, the transverse section 210, and the second water supply pipe 220 are 100-200 mm.

[0032] In some embodiments, one end of the first water supply pipe 200 is connected to the drain outlet 111, and the other end of the first drain pipe is bent and extends laterally to form a transverse section 210. The outer end of the transverse section 210 is connected to the second water supply pipe 220. In this way, the water in the first water supply pipe 200 changes from longitudinal to transverse through the bend before entering the second water supply pipe 220, avoiding the water from falling directly longitudinally into the second water supply pipe 220 and reducing the loss of kinetic energy of the water.

[0033] Specifically, one end of the second water supply pipe 220 is arranged in a closed manner, and the other end of the second water supply pipe 220 is connected to a drainage well. In this way, the seepage water entering the substation cable trench can be discharged and collected in a timely and effective manner through the water collection well 300.

[0034] In some embodiments, the ditch 100 and the drainage structure are sloped along the direction of the collection well 300, and the slope is not less than 3‰.

[0035] In some embodiments, the base plate 110 and the second water pipe 220 are arranged to extend obliquely toward the water collection well 300.

[0036] In a preferred embodiment, the drain outlet 111 includes a filter structure, which comprises a filter plate 400 with filter holes, and the filter plate 400 is arranged laterally in the drain outlet 111. By setting up the filter structure, impurities entering the cable trench are collected, preventing them from clogging the drainage structure and further enhancing the drainage efficiency of the device.

[0037] In some embodiments, the base plate 110 has a recessed hanging groove 112, which is arranged around the outer periphery of the drain outlet 111 and is connected to the drain outlet 111.

[0038] The filter structure, arranged radially from the outside to the inside, includes an outer hanging ear 430, a hanging ear connecting plate 420, and an inner hanging ear 410. The outer hanging ear 430 and the inner hanging ear 410 are connected by the hanging ear connecting plate 420. The outer hanging ear 430 is embedded in the hanging ear groove 112, and the hanging ear connecting plate 420 is fixedly arranged in the hanging ear groove 112. One end of the inner hanging ear 410 is connected to the hanging ear connecting plate 420, and the other end of the inner hanging ear 410 is embedded in the drain outlet 111 and connected to the filter plate 400. The design of the outer hanging ear 430 and the hanging ear connecting plate 420 enables quick disassembly and installation, improves impurity collection efficiency, and prevents clogging of the drainage structure. The design of the inner hanging ear 410 fixes the filter plate 400 in the drain outlet 111.

[0039] Specifically, the height of the outer ear 430 is the same as the depth of the ear groove 112, the width of the ear connecting plate 420 is 50mm, the height of the inner ear 410 is 100-200mm, and the radius of the filter plate 400 is the same as the radius of the drain outlet 111.

[0040] The base plate 110 is connected to longitudinally arranged side wall plates 120 on both sides. The side wall plates 120 extend along the length of the cable trench, and the two side wall plates 120 and the base plate 110 enclose a cable routing cavity.

[0041] Specifically, the height of the side wall panel 120 is 400-1200mm, the width of the bottom plate 110 is 400-1200mm, and the thickness of the side wall panel 120 and the bottom plate 110 is 100-200mm.

[0042] In some embodiments, the side wall panel 120 and the bottom plate 110 are integrally formed. Thus, the side wall panel 120 and the bottom plate can be integrally formed on the construction site by setting up formwork and pouring concrete, or they can be prefabricated in a factory and then laid out on site.

[0043] In some embodiments, the side wall panel 120 and the bottom plate 110 are formed independently. This improves installation efficiency by prefabricating them in the factory and assembling them on site.

[0044] In some embodiments, a plurality of side drainage holes 121 are provided on the lower part of the side wall panel 120, and side drainage pipes are connected to the plurality of side drainage holes 121, with the ends of the side drainage pipes connected to the water collection well 300. This improves drainage efficiency.

[0045] Reference Figure 5 As shown, in a preferred embodiment, the lower part of the trench 100 is provided with an intercepting net cylinder 500. The intercepting net cylinder 500 extends along the width direction of the bottom plate 110, and the side end of the intercepting net cylinder 500 is connected to the side wall plate 120, and the bottom of the intercepting net cylinder 500 is connected to the bottom plate 110.

[0046] The intercepting net cylinder 500 surrounds and forms a cylindrical cavity. A central plate 510 is formed in the middle of the cylindrical cavity. The central plate 510 extends along the width direction of the bottom plate 110 and divides the cylindrical cavity into two intercepting cavities. Interception openings are formed on the front and rear sides of the intercepting net cylinder 500, and the interception openings extend along the width direction of the bottom plate 110. The two interception openings are respectively connected to the two intercepting cavities. The two sides of the intercepting cavities are respectively connected to the side drainage holes 121.

[0047] As water carrying debris passes through the cable conduit, both water and debris enter the interception chamber through the interception opening. The water flows through the side drainage hole 121 and into the collection well 300 via the side drainage pipe, while the debris remains in the interception chamber. This effectively handles debris such as plastic bags, preventing blockage of the drainage outlet. The interception chamber design in the interception net cylinder 500 also allows for the rapid removal of plastic debris and other contaminants from the cable conduit.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-draining cable trench, characterized in that, The device includes a trench body, the bottom of which has a base plate extending along the length of the trench body, and a drainage structure provided on the base plate; the trench body encloses and forms a cable laying cavity, and water in the cable laying cavity is discharged from the cable laying cavity through the drainage structure.

2. The self-draining cable trench as described in claim 1, characterized in that, The drainage structure includes multiple drainage outlets arranged on the base plate, the multiple drainage outlets being spaced apart along the extension direction of the base plate, and each of the multiple drainage outlets being connected to a longitudinally arranged first water supply pipe, and the multiple first water supply pipes being connected to a second water supply pipe.

3. The self-draining cable trench as described in claim 2, characterized in that, One end of the first water supply pipe is connected to the drain outlet, and the other end of the first water supply pipe is bent and extends laterally to form a transverse section. The outer end of the transverse section is connected to the second water supply pipe.

4. The self-draining cable trench as described in claim 2, characterized in that, One end of the second water supply pipe is arranged in a closed manner, and the other end of the second water supply pipe is connected to a drainage well.

5. The self-draining cable trench as described in claim 4, characterized in that, The base plate and the second water pipe are arranged to extend at an incline toward the water collection well.

6. The self-draining cable trench as described in claim 2, characterized in that, The drain outlet has a filter structure, which includes a filter plate with filter holes, and the filter plate is arranged horizontally in the drain outlet.

7. The self-draining cable trench as described in claim 6, characterized in that, The base plate has a recessed hanging groove, which is arranged around the outer periphery of the drain outlet and is connected to the drain outlet. The filter structure includes, in a radial direction from the outside to the inside, an outer hanging ear, a hanging ear connecting plate, and an inner hanging ear. The hanging ear connecting plate connects the outer hanging ear and the inner hanging ear. The outer hanging ear is embedded in the hanging ear groove, and the hanging ear connecting plate is fixedly arranged in the hanging ear groove. One end of the inner hanging ear is connected to the hanging ear connecting plate, and the other end of the inner hanging ear is embedded in the drain outlet and connected to the filter plate.

8. The self-draining cable trench as described in any one of claims 1 to 7, characterized in that, The base plate is connected to longitudinally arranged sidewalls on both sides. The sidewalls extend along the length of the cable trench, and the two sidewalls and the base plate enclose the cable routing cavity.

9. The self-draining cable trench as described in claim 8, characterized in that, The side wall panel and the bottom plate are integrally formed.

10. The self-draining cable trench as described in claim 8, characterized in that, The side wall panels and the bottom plate are formed independently.

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