Lifting device for high-voltage cable to enter and exit long tunnel

Abstract

The utility model discloses a lifting device for a high-voltage cable to go in and out of a long tunnel, which comprises a main body assembly and a lifting device, the lifting assembly comprises a connecting column, a connecting frame and a connecting plate; the connecting column is fixed to the center of the top end of the fixing plate, the connecting frame is tightly attached to one side of the connecting column, and the connecting plate is fixed between the inner sides of the connecting frame. The utility model aims to solve the problems that the existing tunnel portal limited space bearing platform is small in space, the whole ground is made of reinforced concrete, the difficulty in manufacturing a cable groove is high, the bending radius of a high-voltage cable is insufficient, the high-voltage cable is not attractive, a plurality of tools are needed by constructors, and the working efficiency is extremely low.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cable installation, in particular to a lifting device for high-voltage cables to enter and exit long tunnels. Background Art

[0002] High voltage cables are power cables used to transmit voltage levels from 1kV to 1000kV. They play an important role in power transmission and distribution systems. High voltage cables are mostly used in the trunk lines of power systems, especially in underground applications. They need to have sufficient strength to resist ground pressure and other potential external force damage.

[0003] However, high-voltage cables still have the following disadvantages in actual installation:

[0004] The existing tunnel entrance has limited space, the space at the pedestal is small, and the ground is made entirely of reinforced concrete, making it difficult to make cable trenches. At the same time, the bending radius of the high-voltage cable is insufficient and not beautiful. Construction workers need a lot of tools and their work efficiency is extremely low. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting device for high-voltage cables entering and exiting long tunnels, so as to solve the problems raised in the above-mentioned background technology that the space at the existing tunnel entrance is limited, the space at the pedestal is small, and the ground is made entirely of reinforced concrete, making it difficult to make cable trenches, and at the same time, the bending radius of the high-voltage cable is insufficient and unsightly, the construction workers need many tools and instruments, and the work efficiency is extremely low.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a lifting device for high-voltage cables entering and exiting long tunnels, comprising:

[0008] A main body assembly, the main body assembly comprising a fixing plate;

[0009] A lifting assembly, the lifting assembly comprising a connecting column, a connecting frame, and a connecting plate;

[0010] The connecting column is fixed at the center of the top end of the fixing plate, the connecting frame is closely attached to one side of the connecting column, and the connecting plate is fixed between the inner sides of the connecting frame.

[0011] Furthermore, the rear side of the connecting plate is fitted with the connecting column, and a connecting bolt is rotatably connected to the connecting plate and the connecting column;

[0012] A group of mounting plates are fixedly connected between the inner sides of the connection frames.

[0013] Furthermore, the outer end of the mounting plate is fixedly connected to a ring plate, the upper end of one end of the ring plate is movably connected to a movable plate, and the bottom end of the ring plate is fixedly connected to a support plate;

[0014] The bottom end of the support plate is fixedly connected to the connection frame, and a limiting bolt runs through the annular plate and the outer side of the movable plate.

[0015] Furthermore, the invention also includes an auxiliary support assembly;

[0016] The auxiliary support assembly includes a group of connecting blocks, movable rods, and support rods;

[0017] The connecting blocks are fixed on both sides of the connecting columns, the movable rods are movably connected to the outer side surfaces of the connecting blocks, and the supporting rods are movably connected to the outer ends of the movable rods.

[0018] Furthermore, an auxiliary plate is fixedly connected to the top end of the support rod, a first movable shaft is movably connected to the outer side of the connection between the connecting block and the movable rod, and a second movable shaft is movably connected to the connection between the movable rod and the support rod.

[0019] Furthermore, the main body assembly also includes a fixing slot;

[0020] The fixing groove runs through the top and bottom ends of the fixing plate.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. The utility model provides that when the high-voltage cable enters and exits a long tunnel, a connecting column is arranged at the pedestal in the limited space of the tunnel entrance, and a ring plate and a movable plate are arranged on the connecting column to clamp and limit the high-voltage cable, thereby ensuring the bending radius and reserved length of the high-voltage cable, and preventing accidents caused by severe bending of the high-voltage cable; at the same time, the high-voltage cable enters the tunnel from the first ventilation hole on the tunnel wall, and avoids the high-voltage cable from entering the tunnel directly from the tunnel entrance after being led down from the power supply pole, which makes it difficult for maintenance personnel to enter and exit the tunnel and perform maintenance operations;

[0023] 2. Based on beneficial effect 1, auxiliary plates are set on the left and right sides of the annular plate to provide auxiliary support for the installed high-voltage cables to prevent the high-voltage cables from pressing down on the annular plates due to gravity after long-term use, thereby avoiding deformation of the annular plates. At the same time, a support rod is fixedly connected to the bottom end of the auxiliary plate, and the bottom end of the support rod is movably connected to the movable rod on the rear side. At the same time, the movable rod is movably connected to the left and right sides of the connecting column, so that when the auxiliary plate is not in use, the movable rod drives the auxiliary plate to rotate downward to place and store the auxiliary support assembly.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the lifting component of the utility model;

[0028] Figure 3 This is a schematic diagram of the auxiliary support assembly structure of the utility model.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 11. Fixed plate; 12. Fixed groove; 21. Connecting column; 22. Connecting frame; 23. Connecting plate; 24. Connecting bolt; 25. Mounting plate; 26. Ring plate; 27. Movable plate; 28. Support plate; 29. ​​Limiting bolt; 31. Connecting block; 32. Movable rod; 33. Support rod; 34. Auxiliary plate; 35. First movable axis; 36. Second movable axis. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-Figure 2 As shown, this embodiment is a lifting device for high-voltage cables entering and exiting a long tunnel, comprising:

[0035] A main body component, the main body component includes a fixing plate 11;

[0036] The fixing plate 11 is used for installing the connecting column 21;

[0037] A lifting assembly, the lifting assembly includes a connecting column 21, a connecting frame 22, and a connecting plate 23;

[0038] The connecting column 21 is fixed to the center of the top of the fixing plate 11, the connecting frame 22 is closely attached to one side of the connecting column 21, and the connecting plate 23 is fixed between the inner sides of the connecting frame 22;

[0039] The connecting column 21 is used to support other components, the connecting frame 22 is used to place other components, the connecting frame 22 is placed on the front side of the connecting column 21, and the connecting plate 23 is used to connect the connecting frame 22 and the connecting column 21;

[0040] The rear side of the connecting plate 23 is fitted with the connecting column 21, and the connecting bolt 24 is rotatably connected to the connecting plate 23 and the connecting column 21;

[0041] A set of mounting plates 25 are fixedly connected between the inner sides of the connection frame 22;

[0042] A connecting bolt 24 is provided, which can be used to connect the connecting plate 23 and the connecting column 21, and also enables the connecting frame 22 and the connecting column 21 to be firmly connected together. The mounting plate 25 is used to place other components. There are five mounting plates 25 in total, and a certain distance is set between the mounting plates 25.

[0043] The outer end of the mounting plate 25 is fixedly connected to an annular plate 26, an upper end of the annular plate 26 is movably connected to a movable plate 27, and the bottom end of the annular plate 26 is fixedly connected to a support plate 28;

[0044] The bottom end of the support plate 28 is fixedly connected to the connection frame 22, and a limiting bolt 29 is passed through the outer side of the annular plate 26 and the movable plate 27;

[0045] The movable plate 27 is movably connected to the upper rear end of the annular plate 26, and the support plate 28 supports the bottom end of the annular plate 26. When the annular plate 26 and the movable plate 27 are closed, the limiting bolts 29 are inserted into the top and bottom ends of the two, so that the limiting bolts 29 limit the annular plate 26 and the movable plate 27 when they are closed, so that the annular plate 26 and the movable plate 27 limit the high-voltage cable;

[0046] Working principle:

[0047] The staff determines the position of each connecting column 21, then places the fixing plate 11 at the determined position, and then inserts the chemical anchor into the fixing groove 12, so that the fixing plate 11 drives the connecting column 21 and other components to be installed at the designated position;

[0048] Then hold the high-voltage cable by hand, and then place the high-voltage cable on the annular plate 26, and turn the movable plate 27 by hand, so that the front end of the movable plate 27 touches the front end of the annular plate 26, and then the limiting bolt 29 is passed through the connection between the front ends of the two, so that the annular plate 26 and the movable plate 27 limit the high-voltage cable, and at the same time, the cable protection cover is installed at the intersection of the high-voltage cable and the tunnel wall;

[0049] In the above steps, the interaction between the annular plate 26 and the movable plate 27 is used to limit the position of the placed high-voltage cable.

[0050] See also Figure 1 , Figure 3 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0051] Auxiliary support components;

[0052] The auxiliary support assembly includes a set of connecting blocks 31, movable rods 32, and support rods 33;

[0053] The connecting block 31 is fixed to both sides of the connecting column 21, the movable rod 32 is movably connected to the outer side of the connecting block 31, and the supporting rod 33 is movably connected to the outer end of the movable rod 32;

[0054] Each group of connection blocks 31 has five connection blocks 31, which are fixed to the left and right sides of the connection column 21. The connection blocks 31 are used to place the movable rod 32, and the movable rod 32 is used to connect the support rod 33, and the support rod 33 is movably connected to the front side end of the movable rod 32;

[0055] The top of the support rod 33 is fixedly connected with an auxiliary plate 34, the outer side of the connection between the connecting block 31 and the movable rod 32 is movably connected with a first movable shaft 35, and the connection between the movable rod 32 and the support rod 33 is movably connected with a second movable shaft 36;

[0056] The auxiliary plate 34 provides auxiliary support for the high-voltage cable during installation. A first movable shaft 35 is provided to facilitate the movement of the movable rod 32. A second movable shaft 36 is provided to facilitate the movement of the support rod 33.

[0057] The main body assembly also includes a fixing slot 12;

[0058] The fixing groove 12 penetrates the top and bottom ends of the fixing plate 11;

[0059] The fixing groove 12 is used to install the fixing plate 11;

[0060] Working principle:

[0061] When the auxiliary support assembly is not in use, the movable rod 32 is fitted with the connecting column 21. When the auxiliary support assembly is in use, the movable rod 32 is rotated by hand, and the movable rod 32 rotates upward through the first movable shaft 35. When the movable rod 32 rotates to ninety degrees, it stops rotating. At this time, the support rod 33 is located below the movable rod 32. The support rod 33 is rotated by hand, and the support rod 33 rotates upward through the second movable shaft 36. When the support rod 33 and the movable rod 32 are in a vertical state, the support rod 33 stops rotating. At this time, the auxiliary plate 34 is located at the top, so that the high-voltage cable is placed on the auxiliary plate 34, thereby facilitating the installation of the high-voltage cable.

[0062] The above steps can improve your functionality.

[0063] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting device for high-voltage cables entering and exiting long tunnels, characterized in that: include: A main body component, the main body component comprising a fixing plate (11); A lifting assembly, the lifting assembly comprising a connecting column (21), a connecting frame (22), and a connecting plate (23); The connecting column (21) is fixed to the center of the top end of the fixing plate (11), the connecting frame (22) is closely attached to one side of the connecting column (21), and the connecting plate (23) is fixed between the inner sides of the connecting frame (22).

2. A lifting device for high-voltage cables entering and exiting long tunnels according to claim 1, characterized in that: The rear side of the connecting plate (23) is in contact with the connecting column (21), and a connecting bolt (24) is rotatably connected to the connecting plate (23) and the connecting column (21); A group of mounting plates (25) are fixedly connected between the inner sides of the connection frames (22).

3. A lifting device for high-voltage cables entering and exiting long tunnels according to claim 2, characterized in that: The outer end of the mounting plate (25) is fixedly connected to a ring plate (26), the upper end of one end of the ring plate (26) is movably connected to a movable plate (27), and the bottom end of the ring plate (26) is fixedly connected to a support plate (28); The bottom end of the support plate (28) is fixedly connected to the connection frame (22), and a limiting bolt (29) passes through the outer side of the annular plate (26) and the movable plate (27).

4. A lifting device for high-voltage cables entering and exiting long tunnels according to claim 1, characterized in that: Also included is an auxiliary support assembly; The auxiliary support assembly comprises a group of connecting blocks (31), movable rods (32), and support rods (33); The connecting block (31) is fixed to both sides of the connecting column (21), the movable rod (32) is movably connected to the outer side surface of the connecting block (31), and the supporting rod (33) is movably connected to the outer end of the movable rod (32).

5. A lifting device for high-voltage cables entering and exiting long tunnels according to claim 4, characterized in that: The top end of the support rod (33) is fixedly connected to an auxiliary plate (34); the outer side of the connection between the connection block (31) and the movable rod (32) is movably connected to a first movable shaft (35); and the connection between the movable rod (32) and the support rod (33) is movably connected to a second movable shaft (36).

6. A lifting device for high-voltage cables entering and exiting long tunnels according to claim 1, characterized in that: The main body assembly also includes a fixing groove (12); The fixing groove (12) passes through the top and bottom ends of the fixing plate (11).

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