A cable trough box for frost heave areas

Abstract

This utility model proposes a cable trough for use in frost-prone areas, comprising two sets of channel steel detachably connected to the foundation. The two sets of channel steel are symmetrically arranged. Each channel steel includes a first C-shaped steel connected to the foundation via a connector, and a second C-shaped steel is provided on the inner side of the first C-shaped steel. When frost heave occurs in the site, the channel steel itself can adjust to eliminate the adverse effects of frost heave. The vertically adjustable design between the first and second C-shaped steels allows the cable trough to move up and down with the frost heave or thaw settlement of the foundation, avoiding cracking or twisting of the rigid structure due to soil deformation. The adjustable connection between the first C-shaped steel and adjacent first C-shaped steels can absorb lateral displacement and alleviate the lateral stress caused by frost heave.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable trays, specifically a cable tray for use in areas prone to frost heave. Background Technology

[0002] In frigid regions, frost heave is a common problem. In the design of cable trays in substations, frost heave often leads to uneven settlement of the foundation, causing cable trays to crack and deform, seriously affecting the safe operation of the substation. To solve the problem of frost heave, a common method is to set expansion joints at certain intervals between cable trays. However, the materials used in the expansion joints have a short service life, are prone to aging, and are also prone to hardening and cracking under temperature changes, leading to water seepage and leakage inside the cable trays.

[0003] Therefore, how to effectively solve the problem of cable trays in frost heave areas being prone to breakage and deformation is an urgent technical issue that needs to be addressed. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a cable tray for use in frost heave regions, which solves the problem that cable trays in frost heave regions are prone to breakage and deformation.

[0005] The technical solution of this application is as follows:

[0006] A cable tray for use in frost-prone areas includes two sets of channel steel detachably connected to a foundation. The two sets of channel steel are symmetrically arranged, and the length of the channel steel is adjustable in the vertical direction. Each channel steel includes a first C-shaped steel connected to the foundation via a connector. A second C-shaped steel is provided on the inner side of the first C-shaped steel. The first and second C-shaped steels are adjustablely connected, and the first C-shaped steel is also adjustablely connected to adjacent first C-shaped steels. When frost heave occurs in the site, the channel steel itself can adjust, thereby eliminating the adverse effects of frost heave.

[0007] Furthermore, both the first and second C-shaped steel sections are provided with adjustment holes, which are adjustablely connected to the bolt assembly. The opening of the first C-shaped steel section faces outward, and the opening of the second C-shaped steel section faces inward. The second C-shaped steel section is back-to-back with the first C-shaped steel section, and the second C-shaped steel section can slide relative to the first C-shaped steel section.

[0008] Furthermore, the vertical dimension of the second C-shaped steel is smaller than that of the first C-shaped steel, leaving a gap between the lower surface of the second C-shaped steel and the foundation.

[0009] Furthermore, the adjustment hole includes an elongated hole arranged in the vertical direction.

[0010] Furthermore, the adjustment hole includes an elliptical hole. When frost heave occurs, the foundation will cause the first C-shaped steel to deform. When the deformation exceeds a certain limit, the deformation is adjusted through the adjustable adjustment hole at the first C-shaped steel and the second C-shaped steel, thereby eliminating the adverse effects of frost heave on the site soil.

[0011] Furthermore, a gap of 5mm is provided between the first C-shaped steel and the second C-shaped steel to provide space for sliding between them.

[0012] Furthermore, a support rod for supporting the cable is provided between the second C-shaped steels, and a flat steel can be provided on the support rod to divide the internal space of the cable tray.

[0013] Furthermore, the distance between the support rod and the foundation is greater than 50mm. This is to prevent the site soil from causing moisture or other adverse effects on the inside of the cable tray.

[0014] Furthermore, the tops of the two sets of channel steel are overlapped with channel cover plates.

[0015] Furthermore, the connector includes anchor bolts for easy installation and adjustment.

[0016] The specific beneficial effects of this utility model include:

[0017] When frost heave occurs in the site soil, the cable trough steel itself can be adjusted. Adjustment holes are set on the side wall of the cable trough, and the cable trough can be deformed and adjusted through the adjustment holes on the side wall, thereby eliminating the adverse effects of frost heave. The vertically adjustable design between the first C-shaped steel and the second C-shaped steel allows the cable trough to move up and down with the frost heave or thaw settlement of the foundation, avoiding cracking or twisting of the rigid structure due to soil deformation. The adjustable connection between the first C-shaped steel and the adjacent first C-shaped steel can absorb lateral displacement and alleviate the lateral stress caused by frost heave. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only 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 top view of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the usage status of the AA' section Figure 1 ;

[0021] Figure 3 for Figure 1 Schematic diagram of the usage status of the AA' section Figure 2 ;

[0022] Figure 4 for Figure 1 Schematic diagram of the usage status of the AA' section Figure 3 ;

[0023] Figure 5 This is a schematic diagram showing the connection relationship between the first C-shaped steel and the adjacent first C-shaped steel.

[0024] Figure 6 for Figure 5 Cross-sectional view of BB'.

[0025] Explanation of icon numbers:

[0026] 1. Basics;

[0027] 2. Channel steel for the slot box;

[0028] 3. First C-shaped steel;

[0029] 4. Second C-shaped steel;

[0030] 5. Connecting parts; 6. Adjustment holes;

[0031] 7. Bolt assembly; 8. Support rod;

[0032] 9. Slot cover;

[0033] 10. Third C-shaped steel. Detailed Implementation

[0034] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example 1: A cable tray for use in areas prone to frost heave, such as... Figures 1-4As shown, the cable tray includes two sets of channel steel 2 detachably connected to the foundation 1. The two sets of channel steel 2 are symmetrically arranged, and the length of the channel steel 2 is adjustable in the vertical direction. Each channel steel 2 includes a first C-shaped steel 3 connected to the foundation 1 via a connector 5. A second C-shaped steel 4 is provided on the inner side of the first C-shaped steel 3. The first C-shaped steel 3 and the second C-shaped steel 4 are adjustablely connected, and the first C-shaped steel 3 is also adjustablely connected to the adjacent first C-shaped steel 3. When the site soil experiences frost heave, the channel steel 2 can adjust itself to eliminate the adverse effects of frost heave. The vertically adjustable design between the first C-shaped steel 3 and the second C-shaped steel 4 allows the cable tray 2 to move up and down with the frost heave or thaw settlement of the foundation, avoiding cracking or twisting of the rigid structure due to soil deformation. The adjustable connection between the first C-shaped steel and the adjacent first C-shaped steel can absorb lateral displacement and alleviate the lateral stress caused by frost heave.

[0036] Specifically, the cable tray is quite long, requiring multiple sections of first C-shaped steel 3 for connection. The inner sides of adjacent first C-shaped steel 3 are connected by third C-shaped steel 10. The third C-shaped steel 10 has several holes, which can be elliptical or other shapes. Figure 5 , Figure 6 As shown.

[0037] Specifically, such as Figure 3 As shown, when partial settlement occurs in the foundation, the foundation moves downward with the ground, and the first C-shaped steel and the second C-shaped steel slide relative to each other, which can ensure safety; or as... Figure 4 As shown, when the foundation experiences partial settlement and partial uplift, the first C-shaped steel will also deform and tilt due to the influence of the adjacent first C-shaped steel.

[0038] Based on the above implementation, the opening of the first C-shaped steel 3 faces outward, and the opening of the second C-shaped steel 4 faces inward. The second C-shaped steel 4 is back-to-back with the first C-shaped steel 3 and can slide relative to the first C-shaped steel 3. Both the first C-shaped steel 3 and the second C-shaped steel 4 are provided with adjustment holes 6, which are adjustablely connected to bolt groups 7. In frost-prone areas, to address the impact of site soil on the frost heave of the cable trough, adjustment holes 6 are provided on the side wall of the cable trough. The cable trough can be deformed and adjusted through the adjustment holes 6 on the side wall, thereby eliminating the adverse effects of frost heave.

[0039] Based on the above implementation method, the adjustment hole 6 includes an elliptical hole. The elliptical hole can be 60mm×20mm. When frost heave occurs, the foundation 1 will cause the first C-shaped steel 3 to deform. When the deformation exceeds a certain limit, the deformation is adjusted through the adjustable adjustment hole 6 at the first C-shaped steel 3 and the second C-shaped steel 4, thereby eliminating the adverse effects of frost heave on the site.

[0040] Based on the above embodiment, a gap is provided between the first C-shaped steel 3 and the second C-shaped steel 4. The gap is set to 5mm to provide sliding space for the first C-shaped steel 3 and the second C-shaped steel 4. At the same time, when thermal expansion and contraction occur, the gap can be easily adjusted to ensure the normal use of the cable tray.

[0041] Based on the above implementation method, the vertical dimension of the second C-shaped steel 4 is smaller than that of the first C-shaped steel 3, so that there is a gap between the lower surface of the second C-shaped steel 4 and the foundation 1.

[0042] Based on the above embodiment, a support rod 8 for supporting the cable is provided between the second C-shaped steels 4, and the two ends of the support rod 8 are welded and fixed to the flanges of the second C-shaped steels 4 respectively. The support rod 8 can be made of square steel pipe.

[0043] Specifically, flat steel bars can be installed on the support rod 8 to divide the internal space of the cable tray.

[0044] Based on the above implementation method, the distance between the support rod 8 and the foundation 1 is greater than 50mm. This is to prevent the site soil from causing moisture or other effects inside the cable tray.

[0045] Based on the above implementation method, the top of the two sets of channel steel 2 is overlapped with the channel cover plate 9.

[0046] Based on the above embodiments, the connector 5 includes anchor bolts.

[0047] Example 2, as a preferred embodiment, differs from Example 1 in that it includes two sets of channel steel 2 detachably connected to the foundation 1. The two sets of channel steel 2 are symmetrically arranged, and their lengths are adjustable in the vertical direction. Each channel steel 2 includes a first C-shaped steel 3 connected to the foundation 1 via a connector 5. A second C-shaped steel 4 is provided on the inner side of the first C-shaped steel 3. The first C-shaped steel 3 and the second C-shaped steel 4 are adjustablely connected, and the first C-shaped steel 3 is also adjustablely connected to adjacent first C-shaped steel 3s. When frost heave occurs in the site, the channel steel 2 can adjust itself, thereby eliminating the adverse effects of frost heave.

[0048] Specifically, the cable tray is relatively long and requires multiple sections of first C-shaped steel 3 for connection. The first C-shaped steel 3 is connected to the inner side of the adjacent first C-shaped steel 3 by a third C-shaped steel 10. The third C-shaped steel 10 is provided with several holes, which can be elliptical holes or other shapes.

[0049] Based on the above implementation method, both the first C-shaped steel 3 and the second C-shaped steel 4 are provided with adjustment holes 6, which are adjustablely connected to the bolt group 7. In areas prone to frost heave, to address the impact of site soil on the frost heave of the cable trough, adjustment holes 6 are provided on the side wall of the cable trough. The cable trough can be deformed and adjusted through the adjustment holes 6 on the side wall, thereby eliminating the adverse effects of frost heave.

[0050] Based on the above implementation method, the adjustment hole 6 includes an elongated hole arranged in the vertical direction. When frost heave occurs, the foundation 1 will cause the first C-shaped steel 3 to deform. When the deformation exceeds a certain limit, the deformation is adjusted through the elongated holes at the first C-shaped steel 3 and the second C-shaped steel 4, thereby eliminating the adverse effects of frost heave on the site soil.

[0051] Based on the above embodiment, a gap is provided between the first C-shaped steel 3 and the second C-shaped steel 4. The gap is set to 5mm to provide space for the first C-shaped steel 3 and the second C-shaped steel 4 to slide.

[0052] Based on the above implementation method, the vertical dimension of the second C-shaped steel 4 is smaller than that of the first C-shaped steel 3, so that there is a gap between the lower surface of the second C-shaped steel 4 and the foundation 1.

[0053] Based on the above embodiment, a support rod 8 for supporting the cable is provided between the second C-shaped steels 4, and the two ends of the support rod 8 are welded and fixed to the flanges of the second C-shaped steels 4 respectively. The support rod 8 can be made of square steel pipe.

[0054] Specifically, flat steel bars can be installed on the support rod 8 to divide the internal space of the cable tray.

[0055] Based on the above implementation method, the distance between the support rod 8 and the foundation 1 is greater than 50mm. This is to prevent the site soil from causing moisture or other effects inside the cable tray.

[0056] Based on the above implementation method, the top of the two sets of channel steel 2 is overlapped with the channel cover plate 9.

[0057] Based on the above embodiments, the connector 5 includes anchor bolts for easy installation and adjustment.

[0058] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0059] The above content shows and describes the basic principles, main features, and beneficial effects of this utility model. The above description is merely a preferred embodiment of this utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cable tray for use in frost heave regions, characterized in that: It includes two sets of channel steel (2) that are detachably connected to the foundation (1). The two sets of channel steel (2) are symmetrically arranged. The channel steel (2) includes a first C-shaped steel (3) connected to the foundation (1) through a connector (5). A second C-shaped steel (4) is provided on the inner side of the first C-shaped steel (3). The first C-shaped steel (3) and the second C-shaped steel (4) are adjustablely connected. The first C-shaped steel (3) is adjustablely connected to the adjacent first C-shaped steel (3).

2. The cable tray for frost heave areas according to claim 1, characterized in that: The first C-shaped steel (3) and the second C-shaped steel (4) are both provided with adjustment holes (6), and the adjustment holes (6) are adjustablely connected to the bolt group (7).

3. The cable tray for frost heave areas according to claim 2, characterized in that: The vertical dimension of the second C-shaped steel (4) is smaller than the vertical dimension of the first C-shaped steel (3).

4. The cable tray for frost heave areas according to claim 2, characterized in that: The adjustment hole (6) includes an elongated hole arranged in the vertical direction.

5. The cable tray for frost heave areas according to claim 2, characterized in that: The adjustment hole (6) includes an elliptical hole.

6. The cable tray for frost heave areas according to any one of claims 2-5, characterized in that: A gap is provided between the first C-shaped steel (3) and the second C-shaped steel (4).

7. The cable tray for frost heave areas according to any one of claims 2-5, characterized in that: A support rod (8) for supporting the cable is provided between the second C-shaped steel (4).

8. The cable tray for frost heave areas according to claim 7, characterized in that: The distance between the support rod (8) and the foundation (1) is greater than 50 mm.

9. The cable tray for frost heave areas according to any one of claims 1-5 and 8, characterized in that: The tops of the two sets of channel steel (2) are overlapped with channel cover plates (9).

10. The cable tray for frost heave areas according to claim 2, characterized in that: The connector (5) includes anchor bolts.

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