A subway section cable protection device

Abstract

The utility model discloses a subway section cable protection device relates to cable laying technical field. Include: corner guide pipe, corner guide pipe is used in cable laying corner position for cable to pass through wiring, cambered surface support plate, cambered surface support plate sets up in corner guide pipe inside is used to the turning part of cable is arc support, push rod, push rod sets up in corner guide pipe is used to support cambered surface support plate and push cambered surface support plate removes, and the distance of adjusting cable deviating corner guide pipe axis is adjusted through push rod push cambered surface support plate. Through the cambered surface support plate in corner guide pipe to the inside bending position of cable turning position effective support, avoid making cable in turning position produces excessive bending, wearing and tearing etc. situation, push the adjusting mechanism drive push rod and cambered surface support plate simultaneously and push cable turning position to position, make cable turning position and cable straight laying position gentle transition, promote the regularity degree of cable laying, also with this more benefit to the protection of subway section cable.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, and in particular to a cable protection device for subway sections. Background Technology

[0002] A subway section refers to the area between the end walls of two adjacent subway stations, typically containing tunnels, tracks, and other structures used for train operation. The area within the end walls of each station is the station area, usually containing platforms, equipment rooms, and other facilities. During the construction of the power supply system cables in a subway section, the laying is generally supported by brackets. The cable laying path depends on the specific conditions of the subway section and may pass through straight laying areas, turning (corner) laying areas, or cable shaft areas. Changes in cable direction and turns are also stabilized by brackets.

[0003] The current problem is that cables supported by brackets, especially in cable bend areas, including cable shaft areas where cables need to bend downwards, can be damaged or improperly laid. Firstly, the cable will inevitably come into contact with the bracket at the bend, and the small contact area between the bent cable and the bracket (where the bracket exerts concentrated force on the cable locally, even causing excessive bending) can easily lead to localized pressure, scratches, or abrasion, thus damaging the cable. Secondly, the transition of the cable before and after entering the bend is not smooth from the straight-line laying area, resulting in multiple bends in the cable shape (e.g., ...). Figure 4 As shown in the diagram, this not only affects aesthetics but also the cable arrangement during normal cable laying. In light of these two points, we believe that effective protection is especially important for cable bend areas. Therefore, those skilled in the art urgently need to develop a cable protection device for subway sections. Utility Model Content

[0004] The purpose of this invention is to provide a cable protection device for subway sections in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a cable protection device for subway sections, comprising:

[0007] A corner guide tube, which is used to allow cables to pass through and run at corner positions in cable laying;

[0008] An arc-shaped support plate is disposed inside the corner guide tube to provide arc-shaped support for the turning part of the cable.

[0009] A push rod is provided on the corner guide tube to support the arc-shaped support plate and push the arc-shaped support plate to move. The push rod pushes the arc-shaped support plate to adjust the distance of the cable deviating from the axis of the corner guide tube.

[0010] And a push adjustment mechanism, which is disposed outside the corner guide tube to drive the push rod to extend and retract on the corner guide tube.

[0011] Furthermore, the corner guide tube is a right-angled tube structure.

[0012] Furthermore, the corner guide pipe is fixedly connected to the wall at the cable laying location via a connector.

[0013] Furthermore, the side of the arc-shaped support plate facing the cable is wrapped with an insulating layer.

[0014] Furthermore, the push rod is a rectangular column structure, and the inner curved side of the corner guide tube has a guide opening corresponding to the shape of the push rod, and the push rod extends into the corner guide tube from the guide opening.

[0015] Furthermore, the pushing adjustment mechanism includes a nut, which is fixedly connected to the inner curved side of the corner guide tube by a bracket. The nut is provided with a threaded rod that is threaded to it, and the end of the threaded rod is rotatably connected to the push rod by a bearing.

[0016] Furthermore, the threaded rod and the push rod are coaxially arranged.

[0017] In the above technical solution, the cable protection device for subway sections provided by this utility model has the following beneficial effects:

[0018] This device effectively supports the inner bend of the cable at the turning point by using the arc-shaped support plate inside the corner guide tube, preventing excessive bending and wear of the cable at the turning point. At the same time, it pushes the adjustment mechanism to drive the push rod and the arc-shaped support plate to push the cable into the turning position, so that the cable turning position transitions smoothly from the straight cable laying position, improving the neatness of the cable laying and thus making it more conducive to the protection of cables in subway sections. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1A schematic diagram of the structure of a cable protection device for subway sections provided in this embodiment of the present utility model;

[0021] Figure 2 A top view of a cable protection device for subway sections provided in an embodiment of this utility model;

[0022] Figure 3 A schematic diagram showing the arrangement of a subway section cable protection device in a cable shaft, provided for an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the cable bending state of a subway section cable protection device provided in an embodiment of the present invention, where the cable has not been pushed into place.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Corner guide tube; 2. Arc support plate; 3. Push rod; 4. Insulation layer; 5. Guide opening; 6. Nut; 7. Bracket; 8. Threaded rod. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] Please see Figure 1-4 A cable protection device for subway sections, comprising:

[0028] Corner guide tube 1 is used to allow the cable to pass through at the corner of the cable laying. Corner guide tube 1 is also equivalent to wrapping the outside of the cable at the corner or bend of the cable to provide protection.

[0029] The arc-shaped support plate 2 is installed inside the corner guide tube 1 to provide arc-shaped support for the cable at the turning point. The arc-shaped support plate 2 provides support at the cable corner or the inner bend of the turn, and is set in an arc shape to correspond to the cable turning angle. It can effectively prevent the cable from bending excessively, or from bending or abrasion caused by the irregular structure and the conventional support after the cable turns due to concentrated force support, thus effectively protecting the cable.

[0030] Push rod 3 is set on the corner guide tube 1 to support the arc support plate 2 and push the arc support plate 2 to move. Push rod 3 pushes the arc support plate 2 to adjust the distance of the cable deviating from the axis of the corner guide tube 1. That is, push rod 3 supports the arc support plate 2 to support the turning cable. By setting the length of the arc support plate 2 supported by push rod 3, the support position of the arc support plate 2 on the cable is changed so that the cable is close to the inner or outer bend side of the corner guide tube 1 so that it can smoothly transition with the straight cable laid outside the corner guide tube 1.

[0031] And a push adjustment mechanism, which is set outside the corner guide tube 1 to drive the push rod 3 to move telescopically on the corner guide tube 1, so as to conveniently and quickly adjust the position of the arc support plate 2 by pushing the adjustment mechanism, so as to support and protect the cable in a reasonable position.

[0032] Furthermore, the corner guide pipe 1 is a right-angled pipe structure, which is suitable for laying cables in corner positions and vertical drop directions at the shaft opening. Different angles of the corner guide pipe 1 can also be set according to the specific terrain environment.

[0033] Furthermore, the corner guide tube 1 is fixedly connected to the wall at the cable laying location via a connector. The connector can be connected to the outside of the corner guide tube 1 by welding, bolting, or other means. This is a conventional structure and will not be described in detail.

[0034] Furthermore, the side of the curved support plate 2 facing the cable is wrapped with an insulation layer 4 to isolate the curved support plate 2 from direct contact with the cable and ensure the safety of cable support.

[0035] Furthermore, the push rod 3 has a rectangular column structure, and the inner curved side of the corner guide tube 1 has a guide opening 5 corresponding to the shape of the push rod 3. The push rod 3 extends into the corner guide tube 1 from the guide opening 5, and during the process of the push rod 3 sliding in the guide opening 5, the guide opening 5 plays a guiding role in the movement of the push rod 3. At the same time, the rectangular column structure of the push rod 3 prevents it from rotating in the guide opening 5.

[0036] Furthermore, the adjustment mechanism includes a nut 6, which is fixedly connected to the inner curved side of the corner guide tube 1 by a bracket 7. A threaded rod 8 is provided on the nut 6, which is threadedly engaged with it. The end of the threaded rod 8 is rotatably connected to the push rod 3 by a bearing.

[0037] Specifically, by utilizing the threaded engagement structure between the threaded rod 8 and the nut 6, and with the support of the bracket 7, the nut 6 is fixed in position relative to the corner guide tube 1. When the threaded rod 8 is rotated, the threaded rod 8 moves axially, which in turn drives the push rod 3 to move axially to adjust the position of the arc support plate 2.

[0038] Furthermore, the threaded rod 8 and the push rod 3 are coaxially arranged so that the most effective pushing adjustment of the push rod 3 can be provided directly by adjusting the threaded rod 8.

[0039] In summary, this device effectively supports the inner bend of the cable at the turning point by using the arc-shaped support plate inside the corner guide tube, preventing excessive bending and wear of the cable at the turning point. At the same time, it drives the adjustment mechanism to push the push rod and the arc-shaped support plate to push the cable into the turning position, so that the cable turning position transitions smoothly from the straight cable laying position, improving the neatness of the cable laying and thus better protecting the cables in the subway section.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

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