Auxiliary device for laying cable in linear pipeline

Abstract

The utility model relates to the technical field of cable laying auxiliary devices, in particular to an auxiliary device for laying a cable in a linear pipeline, which comprises an annular ring, a plurality of mounting racks are circumferentially arranged in the annular ring at intervals, each mounting rack is provided with a guide wheel, and a cable is arranged among the guide wheels; every two adjacent annular rings are connected through a connecting rod. According to the utility model, the annular rings are arranged outside the cable at intervals, the guide wheels are arranged inside the annular rings, and the guide wheels can assist threading of the cable in the laying process, reduce the frictional resistance on the outer surface of the cable and the traction force during cable laying, and reduce the damage to the cable.

Description

Technical Field

[0001] This utility model relates to the technical field of cable laying auxiliary devices, specifically an auxiliary device for laying cables in straight conduits. Background Technology

[0002] Cables are structures used for transmitting electrical energy or signals, primarily in control installations, equipment connections, and power transmission. During cable laying, cables need to be passed through pre-buried conduits. However, cables used in the field are generally thick-diameter, often with copper cores, and quite heavy, requiring manual labor to drag them or the use of winches, tractors, or other equipment to pull them. When cables are dragged through conduits, the friction between the cable's outer surface and the conduit's inner wall is significant. This friction causes irreversible damage to the cable's outer surface, severely affecting its insulation performance and hindering its normal, continuous, and efficient power supply.

[0003] Based on the above problems, this utility model proposes an auxiliary device that helps with the laying of cables in straight pipelines. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for laying cables in straight pipes, which aims to solve the problem of high friction between the outer surface of the cable and the inner wall of the pipe during existing cable laying, resulting in damage to the cable surface.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An auxiliary device for laying cables in a straight conduit includes an annular ring. Several mounting brackets are arranged circumferentially inside the annular ring, and each mounting bracket is equipped with a guide wheel. The cable is placed between the guide wheels. Adjacent annular rings are connected by a connecting rod.

[0007] Compared with the prior art, the beneficial effects of this utility model are:

[0008] This invention uses annular rings installed at intervals on the outside of the cable to support it inside the pipe. Inside the annular rings are guide wheels that are rolled and connected to the cable. The guide wheels can assist in threading the cable, reduce the frictional resistance on the outer surface of the cable and the traction force during cable laying, and reduce damage to the cable.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] The surface of the ring is circumferentially decorated with several auxiliary wheels.

[0011] The annular ring has a through groove corresponding to the position where the auxiliary wheel is installed. The mounting seat of the auxiliary wheel extends into the interior of the annular ring through the through groove, and a spring is provided between the mounting seat and the inner wall of the annular ring.

[0012] The end of the mounting bracket furthest from the annular ring is connected to a guide wheel bracket. The guide wheel is connected to the mounting bracket via the guide wheel bracket, and limit plates are provided on both sides of the guide wheel corresponding to the guide wheel.

[0013] The mounting bracket includes a fixed rod and an adjusting rod. One end of the fixed rod is fixedly connected to an annular ring. The fixed rod and the adjusting rod are inserted into each other and slide relative to each other. An adjusting elongated hole is provided on the side of the fixed rod, and a positioning hole is provided on the adjusting rod. The fixed rod and the adjusting rod are connected by a bolt assembly that passes through the adjusting elongated hole and the positioning hole.

[0014] Each guide wheel frame has two springs installed between each limiting plate and the guide wheel.

[0015] The two ends of the connecting rod are connected to the inner wall of the annular ring at their respective ends. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Example 1;

[0017] Figure 2 This is a schematic diagram of the connection between the annular ring and the connecting rod in Embodiment 1;

[0018] Figure 3 This is a structural schematic diagram of Example 2;

[0019] Figure 4 This is a schematic diagram showing the connection between the fixed rod and the adjusting rod;

[0020] Explanation of reference numerals in the attached drawings: 1. Pipe; 2. Annular ring; 3. Mounting bracket; 31. Fixing rod; 32. Adjusting rod; 33. Adjusting elongated hole; 34. Positioning hole; 35. Bolt assembly; 4. Guide wheel bracket; 5. Guide wheel; 6. Cable; 7. Auxiliary wheel; 8. Mounting base; 9. Spring one; 10. Through groove; 11. Connecting rod; 12. Limiting plate; 13. Spring two. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0022] Example 1: An auxiliary device for laying cables in a straight conduit consists of several annular rings 2 arranged at intervals. Inside each annular ring 2, several mounting frames 3 are evenly distributed around its central axis. The end of the mounting frame 3 away from the annular ring is connected to a guide wheel frame 4. Each guide wheel frame 4 is equipped with a guide wheel 5. The cable 6 is placed between all the guide wheels 5. In this example, the surface of the guide wheel 5 is in close contact with the surface of the cable 6, so that after the cable 6 passes between all the guide wheels 5, the cable 6 can be pulled with a little force.

[0023] A plurality of auxiliary wheels 7 are evenly mounted on the surface of the annular ring 2 around its central axis. Adjacent annular rings 2 are connected by connecting rods 11, and at least two connecting rods 11 are provided between two annular rings 2. The two ends of each connecting rod 11 are connected to the inner wall of the annular ring 2 at its respective end. Connecting all the annular rings 2 into a whole by connecting rods 11 helps to better support the cable 6 and improve the overall stability of the auxiliary tool.

[0024] In this embodiment, a through groove 10 is provided on the annular ring 2 at the position corresponding to the mounting of the auxiliary wheel 7. The mounting seat 8 of the auxiliary wheel 7 extends into the interior of the annular ring 2 through the through groove 10, and the extended end of the mounting seat 8 is connected to the inner wall of the annular ring 2 by a spring 9.

[0025] In this embodiment, each guide wheel frame 4 is equipped with a limiting plate 12 for limiting the guide wheel 5 on both sides of its guide wheel 5.

[0026] In this embodiment, the rings 2 are fitted onto the cables 6 one by one. While fitting the rings 2, a connecting rod 11 is installed between two adjacent rings 2. The connecting rod 11 fixes the spacing between two adjacent rings 2, so that the rings 2 are evenly spaced outside the cables 6. Then, the rings 2 are pushed as a whole to push the end of the cable 6 from one end of the pipe 1 to the other end of the pipe 1, and then the cable 6 is laid. When it may be necessary to pull the cable during the cable laying, the installer can pull the cable by holding the rings. After the cable 6 is laid, the rings 2 are pulled out of the pipe 1 as a whole.

[0027] In this embodiment, by adding an annular ring 2 to the outside of the cable 6, the cable 6 can be threaded through the annular ring 2, which can effectively reduce the labor intensity of threading the cable 6, avoid wear between the outer surface of the cable 6 and the inner wall of the pipe 1 during the threading process, reduce damage to the cable 6 during the threading process, and ensure the performance of the cable 6.

[0028] Example 2: The difference between this example and Example 1 is that the mounting frame 3 in this example consists of a fixed rod 31 and an adjusting rod 32. The outer end of the fixed rod 31 is fixedly connected to the inner wall of the annular ring 2, the inner end of the fixed rod 31 is inserted into the outer end of the adjusting rod 32, and the adjusting rod 32 can slide along the fixed rod 31. The inner end of the adjusting rod 32 is connected and fixed to the guide wheel frame 4.

[0029] In this embodiment, the fixed rod 31 is a hollow structure, and the adjusting rod 32 is placed inside the fixed rod 31. Adjusting elongated holes 33 are symmetrically opened on both sides of the fixed rod 31, and positioning holes 34 are opened on the adjusting rod 32. After adjusting the length of the adjusting rod 32 extending from the inner end of the fixed rod 31, it is locked by bolt assembly 35 passing through the adjusting elongated hole 33 and the positioning hole 34.

[0030] This embodiment can adjust the position of the guide wheel 5 according to the different diameters of the cable 6, ensuring that the guide wheel 5 is in contact with the cable 6 and plays a guiding role for the cable 6.

[0031] In this embodiment, a second spring is also installed between each limiting plate and the guide wheel in the guide wheel frame, and the guide wheel is buffered and limited by the second spring.

[0032] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. An apparatus for assisting in the laying of a linear conduit cable, characterised in that: It includes an annular ring, with several mounting brackets spaced circumferentially inside the annular ring. Each mounting bracket is equipped with a guide wheel, and the cable is placed between the guide wheels. Adjacent annular rings are connected by a connecting rod, and several auxiliary wheels are arranged circumferentially on the surface of the annular ring.

2. The apparatus according to claim 1, characterized in that: The annular ring has a through groove corresponding to the position where the auxiliary wheel is installed. The mounting seat of the auxiliary wheel extends into the interior of the annular ring through the through groove, and a spring is provided between the mounting seat and the inner wall of the annular ring.

3. The apparatus according to claim 1, wherein: The end of the mounting bracket furthest from the annular ring is connected to a guide wheel bracket. The guide wheel is connected to the mounting bracket via the guide wheel bracket, and limit plates are provided on both sides of the guide wheel corresponding to the guide wheel.

4. The apparatus according to claim 1, wherein: The mounting bracket includes a fixed rod and an adjusting rod. One end of the fixed rod is fixedly connected to an annular ring. The fixed rod and the adjusting rod are inserted into each other and slide relative to each other. An adjusting elongated hole is provided on the side of the fixed rod, and a positioning hole is provided on the adjusting rod. The fixed rod and the adjusting rod are connected by a bolt assembly that passes through the adjusting elongated hole and the positioning hole.

5. The apparatus according to claim 3, wherein: Each guide wheel frame has two springs installed between each limiting plate and the guide wheel.

6. The apparatus of claim 1, wherein: The two ends of the connecting rod are connected to the inner wall of the annular ring at their respective ends.

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