Cable trench joint area bracket

By designing a support frame in the cable trench, the risks of discharge and fire in the cable joint area are resolved, the longitudinal excavation of the cable trench is reduced, and investment savings and space optimization are achieved.

CN224418327UActive Publication Date: 2026-06-26GUIYANG ELECTRIC POWER DESIGN INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIYANG ELECTRIC POWER DESIGN INST CO LTD
Filing Date
2025-04-28
Publication Date
2026-06-26

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Abstract

The utility model discloses a cable trench joint area holds arm frame, include: cable frame body, it includes longitudinal beam and interval installation on longitudinal beam's multiple cross beams, hold arm frame body, including base, vertical installation on the support of base, the sliding sleeve of slidable installation on the support, the holding arm of cross -beam fixed on the sliding sleeve and the fixed sleeve of slidable installation on the free end of holding arm, the other end of fixed sleeve can slip into the end of cross -beam after holding arm and corresponding cross -beam alignment, through setting up holding arm unit in the cable frame body of waiting joint side, and holding arm is adjusted to the end of corresponding cross -beam, and the fixed sleeve removes holding arm and cross -beam fixed, can in the space of holding arm and cross -beam formation, or holding arm on cable joint is carried out to the space of holding arm and cross -beam formation, thereby reduced the longitudinal excavation amount of cable trench, saved the project cost.
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Description

Technical Field

[0001] This utility model relates to a cable trench joint area support arm, belonging to the technical field of cable trench cable joints. Background Technology

[0002] In densely populated urban areas, inside high-rise buildings and factory areas, or in other locations with corrosive gases and flammable or explosive materials, where safety, aesthetics, and geographical limitations make overhead power lines unsuitable or even prohibited, power cable lines are necessary. However, the laying of cables through direct burial, ductwork, or cable trenches is often restricted by planning and municipal pipeline networks, resulting in multi-circuit installations. Civil engineering costs often constitute a large portion of cable engineering investment. To save on civil engineering costs, the design must optimize the space dimensions of cable trenches and manholes to the maximum extent possible. When multiple-circuit cables are laid in the same trench, a support structure is typically used for joints, and the cable joints must be installed in a separate area. This is because cable joints are the weakest point in the insulation of the entire cable line, making them susceptible to partial discharge, short circuits, or even fires due to poor construction techniques, environmental aging, or overload. Secondly, if joints are laid mixed with other cables, a fire caused by a joint failure could spread along adjacent cables. This would increase the clearance size of the cable trench, resulting in a larger workload and higher costs. Utility Model Content

[0003] Based on the above, this utility model provides a cable trench joint area support arm to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a cable trench joint area support arm, comprising:

[0005] The cable frame includes longitudinal beams and multiple transverse beams spaced apart on the longitudinal beams;

[0006] The support frame includes a base, a column vertically mounted on the base, a sliding sleeve slidably mounted on the column, a support arm horizontally fixed on the sliding sleeve, and a fixing sleeve slidably mounted on the free end of the support arm. The other end of the fixing sleeve can slide into the end of the horizontal beam after the support arm is aligned with the corresponding horizontal beam.

[0007] In one example, the support frame body further includes a threaded post fixed to the top of the support column, a fastening nut fitted onto the threaded post, and a top support post movably sleeved on the upper part of the thread, the lower part of the top support post abutting against the fastening nut.

[0008] In one example, the top of the top support column is provided with a top support block.

[0009] In one example, there are two sliding sleeves, spaced apart on the support column, one end of the support arm is connected to the upper sliding sleeve, and a diagonal brace is provided between the support arm and the lower sliding sleeve.

[0010] In one example, the support column has fixing holes spaced apart along its height direction, and the sliding sleeve is fixed to the fixing holes by a first fastener.

[0011] In one example, the fixing sleeve is provided with a second fastener to fix both ends of the fixing sleeve to the bracket and the transverse beam, respectively.

[0012] In one example, a reinforcing rib is provided between the base and the lower part of the support.

[0013] The beneficial effects of this utility model are as follows: by setting up a support arm unit next to the cable rack to be spliced, adjusting the support arm to the end of the corresponding transverse beam, and fixing the support arm to the transverse beam with the movable fixing sleeve, cable splicing can be carried out in the space formed by the support arm and the transverse beam, or on the support arm, thereby reducing the longitudinal excavation of the cable trench, which can greatly reduce the size of the cable trench in the non-splitting area, and achieve the purpose of saving land and saving investment. Attached Figure Description

[0014] Figure 1 A schematic diagram of the support arm in the cable trench joint area;

[0015] Figure 2 This is a schematic diagram of the support frame.

[0016] Figure 3 This is a schematic diagram showing the connection between the support frame and the cable tray.

[0017] Figure 4 This is an installation diagram;

[0018] Explanation of reference numerals in the attached figures:

[0019] Cable support structure: 11 longitudinal beams, 12 transverse beams;

[0020] Support frame body: 21 base, 22 support column, 23 sliding sleeve, 24 support arm, 25 fixing sleeve, 26 threaded column, 27 fastening nut, 28 top support column, 29 top support block, 30 diagonal brace, 31 reinforcing rib, 32 fixing hole, 33 first fastener, 34 second fastener. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 4 This embodiment provides a cable trench joint area support arm, which includes a cable frame body and a support arm body.

[0023] The cable frame includes longitudinal beams 11 and three transverse beams 12 spaced apart on the longitudinal beams 11. The cable frame is spaced apart in the cable trench, and the transverse beams 12 mainly serve as support beams for cable laying.

[0024] The support frame includes a base 21, a vertically mounted support column 22 on the base 21, a sliding sleeve 23 slidably mounted on the support column 22, a support arm 24 horizontally fixed to the sliding sleeve 23, and a fixing sleeve 25 slidably mounted on the free end of the support arm 24. The other end of the fixing sleeve 25 can slide into the end of the horizontal beam 12 after the support arm 24 is aligned with the corresponding horizontal beam 12. The base 21 and the support column 22 mainly support the sliding sleeve 23 and the support arm 24. The sliding sleeve 23 mainly adjusts the support arm 24 vertically, while the fixing sleeve 25 mainly connects and fixes the support arm 24 to the horizontal beam 12.

[0025] To ensure the stability of the support, the bracket body also includes a threaded post 26 fixed to the top of the support column 22, a fastening nut 27 fitted on the threaded post 26, and a top support post 28 movably sleeved on the upper part of the threaded post. A top support block 29 is fixed to the top of the top support post 28, and the lower part of the top support post 28 abuts against the fastening nut 27. With the threaded post 26, fastening nut 27, and top support post 28, when the bracket body is installed in the cable trench, the top support post 28 can be moved upward and abut against the inner fixed part of the cable trench by tightening the fastening nut 27, thereby improving the structural reliability of the support column 22.

[0026] To ensure the stability of the support, two sliding sleeves 23 are installed at intervals on the support column 22. One end of the support arm 24 is connected to the upper sliding sleeve 23. A diagonal brace 30 is provided between the support arm 24 and the lower sliding sleeve 23, which can improve the load-bearing capacity of the support arm 24. Multiple reinforcing ribs 31 are also installed between the base 21 and the lower part of the support column 22.

[0027] For ease of operation, fixing holes 32 are provided at intervals along the height direction on the support column 22. The sliding sleeve 23 is fixed to the fixing holes 32 by a first fastener 33, which can be a fastening bolt. Second fasteners 34 are provided at both ends of the fixing sleeve 25 to fix both ends of the fixing sleeve 25 to the support arm 24 and the transverse beam 12 respectively. The second fasteners 34 can be fastening screws.

[0028] The working principle of the above-mentioned cable trench joint area support arm is as follows:

[0029] When laying cables, for cable joint locations, a support arm can be installed next to the cable rack. The support arm 24 is adjusted to the end of the corresponding transverse beam 12, and the fixed sleeve 25 is moved to fix the support arm 24 to the transverse beam 12. Cable joints can then be performed in the space formed by the support arm 24 and the transverse beam 12, or on the support arm 24 itself. This invention, by setting a support arm 24 unit next to the cable rack to be jointed, enables cable jointing operations within the existing transverse space, thereby reducing the longitudinal excavation of the cable trench and saving engineering costs.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cable trench joint area support arm, characterized in that, include: The cable frame includes a longitudinal beam (11) and a plurality of transverse beams (12) spaced apart on the longitudinal beam (11). The support frame includes a base (21), a column (22) vertically mounted on the base (21), a sliding sleeve (23) slidably mounted on the column (22), a support arm (24) horizontally fixed on the sliding sleeve (23), and a fixing sleeve (25) slidably mounted on the free end of the support arm (24). The other end of the fixing sleeve (25) can slide into the end of the horizontal beam (12) after the support arm (24) is aligned with the corresponding horizontal beam (12).

2. The cable trench joint area support arm according to claim 1, characterized in that, The bracket body also includes a threaded post (26) fixed to the top of the support column (22), a fastening nut (27) installed on the threaded post (26), and a top support post (28) movably sleeved on the upper part of the thread, the lower part of the top support post (28) abutting against the fastening nut (27).

3. The cable trench joint area support bracket according to claim 2, characterized in that, The top of the top support column (28) is provided with a top support block (29).

4. The cable trench joint area support arm according to claim 1, characterized in that, There are two sliding sleeves (23) and they are spaced apart on the support column (22). One end of the support arm (24) is connected to the upper sliding sleeve (23). A diagonal brace (30) is provided between the support arm (24) and the lower sliding sleeve (23).

5. The cable trench joint area support arm according to claim 1, characterized in that, The support column (22) is provided with fixing holes (32) spaced apart along its height direction, and the sliding sleeve (23) is fixed to the fixing holes (32) by the first fastener (33).

6. The cable trench joint area support arm according to claim 1, characterized in that, The fixing sleeve (25) is provided with a second fastener (34) to fix both ends of the fixing sleeve (25) to the support arm (24) and the transverse beam (12) respectively.

7. The cable trench joint area support arm according to claim 1, characterized in that, A reinforcing rib (31) is provided between the base (21) and the lower part of the support (22).