Cement prefabricated cable trench

Abstract

The utility model discloses a cement prefabricated cable groove which comprises a groove body, a cable partition plate is arranged in the groove body, the inner side wall of the groove body and the cable partition plate are respectively provided with a drying layer, the top of the groove body is provided with a matching concave part, and the bottom of the groove body is provided with a matching convex part corresponding to the matching concave part. The matching convex parts are located on the two sides of the bottom of the groove body and arranged in the length direction of the groove body, the front side and the rear side of the groove body are correspondingly provided with a splicing convex part and a splicing concave part respectively, the cross section of the cable partition plate is in a cross shape, and the side walls in the groove body are provided with grooves corresponding to the cross-shaped cable partition plate. The cross-shaped cable partition plate comprises a vertical plate part in the vertical direction and a transverse plate part in the horizontal direction, the thickness of the vertical plate part is larger than that of the transverse plate part, the cable partition plate divides the interior of the groove body into different cable laying spaces, different cables can be separated conveniently, and use convenience and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of cable trench technology, specifically to a precast cement cable trench. Background Technology

[0002] Cable trenches are conduits used for laying and replacing power or telecommunications cables, and also serve as the enclosure structure for the cables being laid. They come in rectangular, circular, and arched forms. Existing technology, such as patent CN212908943U, discloses a precast reinforced concrete underground power cable trench and mold, comprising multiple trench units connected in sequence. Each trench unit is U-shaped and includes a trench body and a trench cover plate on top of the trench body. The trench body includes a bottom plate and first and second side plates respectively located on either side of the bottom and top plates. The first side plates of adjacent trench units are connected by mortise and tenon joints, as are the second side plates of adjacent trench units. The cable trench is prefabricated in a factory and assembled on-site, which shortens construction time. However, the trench body only has one space for cable laying, making it inconvenient to separate different cables and hindering safety improvements. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and to provide a precast cement cable trench.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A precast concrete cable trench includes a trench body, in which a cable separator plate is installed. Both the inner sidewalls of the trench body and the cable separator plate are provided with a drying layer. A mating recess is provided at the top of the trench body, and a mating protrusion is provided at the bottom of the trench body corresponding to the mating recess. The mating protrusions are located on both sides of the bottom of the trench body and arranged along the length of the trench body. Splicing protrusions and splicing recesses are respectively provided on the front and rear sides of the trench body. The cable separator plate has a cross-shaped cross section, and grooves are provided on each sidewall of the trench body corresponding to the cross-shaped cable separator plate. The cross-shaped cable separator plate includes a vertical plate portion in the vertical direction and a horizontal plate portion in the horizontal direction, with the thickness of the vertical plate portion being greater than the thickness of the horizontal plate portion.

[0006] In some embodiments of this utility model, a first rubber pad layer is installed in the mating recess.

[0007] In some embodiments of this invention, the drying layer includes a lime layer and an activated carbon layer, with the activated carbon layer located outside the lime layer.

[0008] In some embodiments of this utility model, the splicing protrusion includes an edge protrusion located on the front side of the groove body and a plurality of protrusions on one side of the edge protrusion.

[0009] In some embodiments of this utility model, the edge protrusion is arranged along the edge of the end face on the front side of the groove body, the protrusion is located inside the edge protrusion, and the spacing between adjacent protrusions is the same.

[0010] In some embodiments of this utility model, the top of the groove body is provided with an opening, the mating recess is arranged on both sides of the opening, and a groove cover is installed on the top of the groove body. The width of the groove cover is not less than the width of the groove body, and the length of the groove cover is the same as the length of the groove body.

[0011] In some embodiments of this utility model, the groove cover is provided with a bottom protrusion corresponding to the mating recess.

[0012] In some embodiments of this utility model, the width of the groove cover is greater than the width of the groove body, and side plates extend downward on both sides of the groove cover. The side plates and the outer side walls of the groove body are respectively provided with mounting holes for installing fasteners.

[0013] In some embodiments of this utility model, there are two groove bodies, with the mating protrusion of the upper groove body being inserted into the mating recess of the other groove body.

[0014] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0015] 1. The trench is equipped with a cable separator plate with a cross-shaped cross section, which divides the trench into multiple cable laying spaces. During cable laying, high-voltage power cables, low-voltage power cables, low-voltage communication cables, and other cables can be laid separately, which facilitates the separation of different cables and improves the convenience and safety of use.

[0016] 2. A drying layer is provided on the inner side wall of the trench and the cable separator plate. The drying layer plays a drying role, reducing the moisture level inside the cable trench and improving the safety of the internal cables.

[0017] 3. The prefabricated trench can be quickly laid on site. At the same time, the top and bottom of the trench are provided with matching recesses and matching protrusions, and the front and rear sides of the trench are respectively provided with splicing protrusions and splicing recesses, which facilitates the splicing of the trench and makes the installation of cable trenches more convenient, which helps to improve construction efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the assembly of the double-layer cable trench of this utility model;

[0021] Explanation of key figure labels:

[0022] 1. Groove body; 10. Groove; 11. Mating recess; 12. Mating protrusion; 13. First rubber pad layer; 14. Splicing protrusion; 15. Edge protrusion; 16. Protrusion; 2. Cable separator plate; 20. Vertical plate; 21. Horizontal plate; 3. Groove cover; 30. Side plate; 31. Mounting hole; 32. Bottom protrusion of cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0025] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does 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, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0026] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0027] In the claims, description and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are used to mean "including but not limited to."

[0028] Example 1, see Figure 1-2 :

[0029] A precast concrete cable trench includes a trench body 1, within which a cable separator 2 is installed. The cable separator 2 has a cross-shaped cross section. Grooves 10 are provided on each side wall of the trench body 1 corresponding to the cross-shaped cable separator 2. The cable separator 2 divides the interior of the trench body 1 into four cable laying spaces. During cable laying, different cables can be laid on different sides of the cable separator 2. For example, high-voltage power cables, low-voltage power cables, low-voltage communication cables, and other cables can be laid separately, improving the safety of cable laying and preventing a large number of cables from piling up and tangling in one laying space. The cross-shaped cable separator 2 includes a vertical plate portion 20 in the vertical direction and a horizontal plate portion 21 in the horizontal direction. The thickness of the vertical plate portion 20 is greater than the thickness of the horizontal plate portion 21, providing good support and stability.

[0030] The inner wall of the trench body 1 and the cable separator plate 2 are both provided with a drying layer. The drying layer plays a drying role, reduces the humidity inside the cable trench, and improves the safety of the internal cables.

[0031] The top of the trench body 1 is provided with a mating recess 11, and the bottom of the trench body 1 is provided with a mating protrusion 12 corresponding to the mating recess 11. The mating protrusion 12 is located on both sides of the bottom of the trench body 1 and is arranged along the length of the trench body 1, so as to facilitate the splicing of two trench bodies 1 together to form a double-layer cable trench.

[0032] The trench body 1 is provided with splicing protrusions 14 and splicing recesses on the front and rear sides respectively, which facilitates the splicing of the front and rear trench bodies 1, making the installation of cable trenches more convenient and helping to improve construction efficiency.

[0033] In one embodiment, the mating recess 11 is provided with a first rubber pad 13. The first rubber pad 13 plays a role in mating and buffering when splicing cable trenches. Preferably, the first rubber pad 13 is bonded to the inner wall of the mating recess 11 by an adhesive, which helps to reduce the gap between the mating recess 11 and the mating protrusion 12.

[0034] In one embodiment, the drying layer includes a lime layer and an activated carbon layer, with the activated carbon layer located outside the lime layer.

[0035] In one embodiment, the splicing protrusion 14 includes an edge protrusion 15 located on the front side of the groove body 1 and a plurality of protrusions 16 on one side of the edge protrusion 15.

[0036] In one embodiment, the edge protrusion 15 is arranged along the edge of the end face on the front side of the groove body 1, and the protrusion 16 is located inside the edge protrusion 15, with the same spacing between adjacent protrusions 16.

[0037] In one embodiment, the top of the groove body 1 is provided with an opening, the mating recess 11 is arranged on both sides of the opening, and a groove cover 3 is installed on the top of the groove body 1. The width of the groove cover 3 is not less than the width of the groove body 1, and the length of the groove cover 3 is the same as the length of the groove body 1.

[0038] In one embodiment, the groove cover 3 is provided with a bottom protrusion 32 corresponding to the recess 11.

[0039] In one embodiment, the width of the groove cover 3 is greater than the width of the groove body 1. Side plates 30 extend downward from both sides of the groove cover 3. The side plates 30 and the outer side walls of the groove body 1 are respectively provided with mounting holes 31 for installing fasteners. It can be understood that the side plates 30 are located outside the bottom protrusion 32 of the cover.

[0040] In one embodiment, there are two groove bodies 1. The mating protrusion 12 of the upper groove body 1 is inserted into the mating recess 11 of the other groove body 1, and the two groove bodies 1 are spliced ​​together to form a double-layer cable trench. The groove body 1 on the upper side is equipped with a trench cover 3.

[0041] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A precast cement cable trench, characterized in that: The system includes a trench body (1), which contains a cable separator plate (2). Both the inner sidewall of the trench body (1) and the cable separator plate (2) are provided with a drying layer. The top of the trench body (1) is provided with a mating recess (11), and the bottom of the trench body (1) is provided with a mating protrusion (12) corresponding to the mating recess (11). The mating protrusion (12) is located on both sides of the bottom of the trench body (1) and arranged along the length of the trench body. The front and rear sides of the trench body (1) are respectively provided with splicing protrusions (14) and splicing recesses. The cross-section of the cable separator plate (2) is cross-shaped. Each sidewall of the trench body (1) is provided with a groove (10) corresponding to the cross-shaped cable separator plate (2). The cross-shaped cable separator plate (2) includes a vertical plate part (20) in the vertical direction and a horizontal plate part (21) in the horizontal direction. The thickness of the vertical plate part (20) is greater than the thickness of the horizontal plate part (21).

2. The precast cement cable trench according to claim 1, characterized in that: The mating recess (11) is fitted with a first rubber pad (13).

3. A precast cement cable trench according to claim 1, characterized in that: The drying layer includes a lime layer and an activated carbon layer, with the activated carbon layer located outside the lime layer.

4. A precast cement cable trench according to claim 1, characterized in that: The splicing protrusion (14) includes an edge protrusion (15) located on the front side of the groove body and a number of protrusions (16) on one side of the edge protrusion.

5. A precast cement cable trench according to claim 4, characterized in that: The edge protrusion (15) is arranged along the edge of the front end face of the groove body (1), and the protrusion (16) is located inside the edge protrusion (15), with the same spacing between adjacent protrusions (16).

6. A precast cement cable trench according to claim 1, characterized in that: The top of the groove body (1) is provided with an opening, and the mating recess (11) is arranged on both sides of the opening. A groove cover (3) is installed on the top of the groove body (1). The width of the groove cover (3) is not less than the width of the groove body (1), and the length of the groove cover (3) is the same as the length of the groove body (1).

7. A precast cement cable trench according to claim 6, characterized in that: The groove cover (3) is provided with a bottom protrusion (32) corresponding to the recess (11).

8. A precast cement cable trench according to claim 7, characterized in that: The width of the groove cover (3) is greater than the width of the groove body (1). Side plates (30) extend downward on both sides of the groove cover (3). The side plates (30) and the outer side walls of the groove body (1) are respectively provided with mounting holes (31), which are used to install fasteners.

9. A precast cement cable trench according to any one of claims 1-8, characterized in that: The number of groove bodies (1) is two, and the mating protrusion (12) of the upper groove body (1) is inserted into the mating recess (11) of the other groove body (1).

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