Modular prefabricated spliced waterproof cable trench

Abstract

The utility model discloses a modular prefabricated spliced waterproof cable trench, including a plurality of first and last socket connections prefabricated block, the section of every prefabricated block is the top open structure of U character, and the one end of this prefabricated block is made to have the socket, and the other end is made to have the socket, and two vertical inner walls of prefabricated block are fixed with the ditch wall embedded part of pouring, the socket groove of prefabricated block is laid with multilayer waterproof belt, and the multilayer waterproof belt is fixed tightly by the socket end of the upper level prefabricated block and the socket end of the lower level prefabricated block, and the multilayer waterproof belt is flush with the inner wall of waterproof cable trench. The waterproof cable trench is innovative through the splicing node structure between many prefabricated blocks, and sets up waterproof measure at the splicing, simple and quick, strengthens the sealing of the connecting surface when shortening the prefabricated cable trench connecting time, improves the construction efficiency, thereby improves the structural waterproof, anticorrosive performance of whole cable trench.

Description

Technical Field

[0001] This utility model relates to the field of cable installation technology, specifically a modular prefabricated waterproof cable trench. Background Technology

[0002] With the vigorous promotion of green building, prefabricated structures have received considerable attention. Prefabricated cable trenches are a common structure for fixing cables. The cable trenches are prefabricated in the factory and then transported to the construction site for installation. The cable structure dimensions and other related parameters set in the factory must meet the requirements of the design drawings.

[0003] Because substations have large outdoor areas, cable trenches have varying cross-sections and are generally quite long, factories typically prefabricate cable trenches to a fixed length. These trenches are then transported to the site and assembled into a complete trench. Currently, the main splicing methods for prefabricated cable trenches are cast-in-place and socket-type.

[0004] The drawback of existing cable trench technology is that while cast-in-place cable trenches offer greater structural integrity, the unavoidable on-site concrete pouring and curing operations increase the construction period and do not significantly improve efficiency.

[0005] The prefabricated cable trench with its two-section socket connection structure significantly improves construction efficiency. However, in areas with high water levels and heavy rainfall, the poor sealing of the socket connection often leads to water ingress into the cable trench.

[0006] In summary, how to solve the above problems and design a modular prefabricated waterproof cable trench that can shorten the construction period and maintenance costs while solving the problem of water ingress into the cable trench has become a technical problem that urgently needs to be solved by people in this field. Utility Model Content

[0007] This utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this utility model is to propose a modular prefabricated waterproof cable trench. This waterproof cable trench features an innovative splicing node structure between multiple prefabricated blocks and incorporates waterproofing measures at the splicing points. It is simple and quick to implement, shortening the connection time of the prefabricated cable trench, improving construction efficiency, and enhancing the sealing of the connection surfaces, thereby improving the overall waterproof and corrosion-resistant performance of the cable trench structure.

[0008] To address the aforementioned problems, this utility model provides a modular prefabricated waterproof cable trench, comprising multiple prefabricated blocks connected end-to-end with sockets. Each prefabricated block has a U-shaped open-top structure. One end of the prefabricated block has a socket, and the other end has an insertion port. Trench wall embedded parts are cast and fixed on the two vertical inner walls of the prefabricated block. Multiple layers of waterproof strips are laid in the socket groove of the prefabricated block. These multiple layers of waterproof strips are clamped and fixed by the insertion port end of the upper-level prefabricated block and the socket end of the lower-level prefabricated block, and the multiple layers of waterproof strips are flush with the inner wall of the waterproof cable trench.

[0009] Preferably, the depth of the socket end of the precast block is greater than the protrusion length of the spigot end of the precast block, and the gap after the socket end is inserted into the spigot end is filled with multiple layers of waterproof tape.

[0010] Preferably, the multi-layer waterproof strip includes, with reference to the axis of the waterproof cable trench, a layer of asphalt hemp fiber, a water-swellable waterstop strip, and a weather-resistant silicone sealant layer laid radially from the outside to the inside.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] This utility model discloses a modular prefabricated waterproof cable trench. By opening sockets and insertion ports at both ends of the prefabricated blocks, multiple prefabricated blocks can be spliced ​​end to end. The size difference between the socket end and the insertion end is designed to leave space for laying multiple layers of waterproof tape. By laying asphalt hemp fiber layer, water-swellable water-stop strip and weather-resistant silicone sealant layer from the outside to the inside in the connection gap between the socket end and the insertion end, the problem of water leakage at the joint of the prefabricated blocks in the waterproof cable trench is avoided. Finally, by casting embedded parts for fixing the trench wall on the two vertical inner walls of the prefabricated blocks, it is convenient for subsequent cable bracket installation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 This is a side sectional view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the middle part of the precast block in this utility model;

[0017] Figure 4 This is a cross-sectional view of the multi-layer waterproof strip of this utility model;

[0018] In the diagram: 1-Precast block; 2-Embedded parts in trench wall; 3-Multi-layer waterproof strip; 4-Socket; 5-Socket; 6-Weather-resistant silicone sealant layer; 7-Water-swellable waterstop strip; 8-Asphalt-hemp fiber layer. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Combination Figures 1-4 This utility model discloses a modular prefabricated waterproof cable trench, comprising multiple prefabricated blocks 1 connected end-to-end with sockets. Each prefabricated block has a U-shaped open-top structure. One end of the prefabricated block has a socket 5, and the other end has an insertion port 4. Trench wall embedded parts 2 are cast and fixed on the two vertical inner walls of the prefabricated block. Multiple layers of waterproof strips 3 are laid in the socket groove of the prefabricated block. The multiple layers of waterproof strips are clamped and fixed by the insertion end of the upper-level prefabricated block and the socket end of the lower-level prefabricated block, and the multiple layers of waterproof strips are flush with the inner wall of the waterproof cable trench.

[0023] Preferably, the depth of the socket end of the precast block is greater than the protrusion length of the spigot end of the precast block, and the gap after the socket end is inserted into the spigot end is filled with multiple layers of waterproof tape.

[0024] Preferably, the multi-layer waterproof strip includes, with reference to the axis of the waterproof cable trench, a layer of asphalt hemp fiber 8, a water-swellable waterstop strip 7, and a weather-resistant silicone adhesive layer 6 laid radially from the outside to the inside.

[0025] To more clearly illustrate the specific implementation of this utility model, an embodiment is provided below:

[0026] This utility model discloses a modular prefabricated waterproof cable trench, which improves the structural waterproofness and corrosion resistance while maintaining the high efficiency of prefabricated cable trench connection (prefabricated block connection). For example... Figure 1-3As shown, each section of the cable trench is 2m long. The ends of the cable trench walls and bottom are equipped with convex and concave sockets and inserts. The ends of each section of the cable trench are designed with one side of the socket protruding outward and the other side of the insert protruding inward. The outer side is 20mm longer than the inner side, which facilitates the sequential installation of asphalt and hemp fiber filling, water-swellable sealing strips, and weather-resistant silicone sealant. The embedded parts in the trench walls of each section of the cable trench are set in two rows, with 3 in each row. One is set in the middle and one is set 0.5m from each end. In this way, when the cable trench is spliced, the spacing of the embedded parts in the trench walls can be 1m, which facilitates the uniform arrangement of cable supports.

[0027] This invention innovates upon the weak points of prefabricated cable trench connections by designing a modular prefabricated waterproof cable trench. Compared to traditional connection processes, by treating the connection nodes, it shortens the connection time of the prefabricated cable trench, improves construction efficiency, and enhances the sealing of the connection surface, thereby improving the waterproof and corrosion-resistant performance of the structure. It is simple, quick, and easy to implement. Furthermore, this invention improves connection efficiency while enhancing the waterproof and corrosion-resistant performance of the nodes, and achieves equidistant arrangement of prefabricated cable trench supports.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A modular, prefabricated, waterproof cable trench, characterized in that: The system comprises multiple precast blocks connected end-to-end with sockets. Each precast block has a U-shaped open-top structure. One end of the precast block has a socket, and the other end has an insertion port. Trench wall embedded parts are cast and fixed on the two vertical inner walls of the precast block. Multiple layers of waterproof tape are laid in the socket groove of the precast block. The multiple layers of waterproof tape are clamped and fixed by the insertion port end of the upper-level precast block and the socket port end of the lower-level precast block. The multiple layers of waterproof tape are flush with the inner wall of the waterproof cable trench.

2. A modular prefabricated waterproof cable trench according to claim 1, characterized in that: The depth of the socket end of the precast block is greater than the protrusion length of the insertion end of the precast block, and the gap after the socket end is inserted into the insertion end is filled with multiple layers of waterproof tape.

3. A modular prefabricated waterproof cable trench according to claim 2, characterized in that: The multi-layer waterproof strip, with the waterproof cable trench axis as a reference, includes a layer of asphalt hemp fiber, a water-swellable waterstop strip, and a weather-resistant silicone rubber layer laid radially from the outside to the inside.

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