Optical cable laying overhead traction device

Abstract

The utility model provides an overhead traction device for optical cable laying, and relates to the field of optical cable laying. The optical cable laying overhead traction device comprises symmetrically-arranged fixing frames, staggered and separated clamping frames are arranged at the front ends and the rear ends of the sides, close to each other, of the two fixing frames, fixing clamps for fixing guide ropes are arranged on the surfaces of the fixing frames, and traction ropes are fixedly installed at the front ends of the clamping frames. According to the overhead traction device for optical cable laying, the fixing frames and the clamping frame can be driven to move through the traction ropes, the telescopic parts are driven to contract by pulling the pull ropes on the two front sides, the two fixing frames are connected through the telescopic parts on the two rear ends, and the fixing frames are driven to move forwards by pulling the traction ropes; when the telescopic part at the rear end is in contact with the obstacle, the pull ropes on the two sides of the front end are loosened to enable the telescopic parts on the two sides of the front end to be reset and clamped, the pull ropes on the two sides of the rear end are pulled to enable the telescopic parts on the two sides of the rear end to be separated, and the traction rope is pulled to achieve the effect that the fixing frame crosses the obstacle.

Description

Technical Field

[0001] This utility model relates to the field of optical cable laying technology, specifically to an overhead traction device for optical cable laying. Background Technology

[0002] Optical cables are laid in two ways: overhead and buried. Overhead laying uses supports to hold the cables together, which is convenient for construction and easy for maintenance later.

[0003] CN105207111B A transmission line guide rope traction and laying process, the steps are as follows: (1) Preparation, combined with the stress condition of the traction rope, determine the specifications and manufacture of the lightweight traction board; stress analysis requires analysis and calculation of the transition stress of each level of the power traction rope; (2) Laying, using lightweight guide rope and lightweight traction board to lay the traction rope; (3) Completion of laying, the cable is pulled to the corresponding iron tower position for fixing, and the lightweight traction rope and lightweight traction board are removed. The present invention adopts the method of first laying the lightweight guide rope for rope splitting, therefore a lightweight traction board is specially designed and manufactured to cooperate with the lightweight guide rope for laying the traction rope, solving the process of manually laying and splitting the traction rope, improving work efficiency, and changing the manual ground rope splitting step to high-altitude traction rope splitting, solving the problem of difficulty in splitting the rope when crossing ground obstacles. However, in actual cabling, optical cables or cable supports are usually installed at both ends of a vertical pole, forming a protrusion at the top of the pole, and lightning protection facilities are often installed at the top of the pole. This technical solution cannot be achieved by using supports and requires cabling to be installed separately on both sides of the vertical pole. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an overhead traction device for laying optical cables, which solves the problem mentioned in the background technology that the traction part cannot easily pass through the support with obstructions.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an overhead traction device for laying optical cables, comprising symmetrically arranged fixed frames, with staggered and separated snap-fit ​​frames at the front and rear ends of the two fixed frames that are close to each other, a fixing clip for fixing a guide rope on the surface of the fixed frame, a traction rope fixedly installed at the front end of the snap-fit ​​frame, the snap-fit ​​frame including a fixed part, the fixed part being fixedly connected to the fixed frame, a telescopic part being slidably connected to the middle of the fixed part, two symmetrical telescopic parts being inserted into each other, a return spring being provided between the telescopic part and the fixed part, a pull rope being provided on the side of the telescopic part that is far apart from each other, the pull rope extending to the outside of the fixed part and slidably connected to the fixed part, the pull ropes on the left and right sides being connected to each other and located below the snap-fit ​​frame.

[0007] Furthermore, the fixing part is C-shaped, with both the front and rear ends protruding outwards.

[0008] Furthermore, the fixed part has sliding grooves arranged side by side at both ends on one side, and the telescopic part is slidably connected inside the sliding grooves.

[0009] Furthermore, the telescopic part consists of a male connector rod and a female connector rod, with the male connector rod inserted into the inside of the female connector rod. A fixing part on one side of the same end connects one male connector rod and one female connector rod.

[0010] Furthermore, the fixed clamp is provided with sliding sleeves that are slidably connected to the outer surface of the fixed frame at both ends, and a friction positioning groove is provided on the outer side of the fixed frame. A friction positioning block is slidably connected inside the friction positioning groove, and a threaded shaft is rotatably connected to the middle of the friction positioning block. The threaded shaft is threadedly connected to the sliding sleeve.

[0011] Furthermore, a lifting rod is provided at the end of the traction rope away from the clip frame. The symmetrical traction ropes are connected by bolts. The lifting rod is L-shaped, and its horizontal end is clamped to the outer surface of the traction rope by a clip. The length of the vertical end of the lifting rod is adjustable.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This optical cable laying overhead traction device can move the fixed frame and the clamping frame by means of traction rope. When the fixed frame is located at the overhead support, the telescopic part is first retracted by pulling the pull rope on both sides of the front. At this time, the two fixed frames are connected by the telescopic parts on both sides of the rear. By pulling the traction rope, the fixed frame moves forward. At this time, the two fixed frames wrap around the obstacle until the telescopic part of the rear end contacts the obstacle. At this time, the pull rope on both sides of the front end is released to reset the telescopic part on both sides of the front end and the pull rope on both sides of the rear end is pulled to separate the telescopic parts on both sides of the rear end. Pulling the traction rope completes the effect of the fixed frame passing over the obstacle.

[0014] 2. The overhead traction device for laying optical cables has a lifting rod at the end of the traction rope away from the clamping frame. The symmetrical traction ropes are connected by bolts. The lifting rod is L-shaped, and its horizontal end is clamped to the outer surface of the traction rope by a clamp. The length of the vertical end of the lifting rod is adjustable. After the traction rope passes through an obstacle, the bolts on both sides are connected to make the traction rope a whole. By lifting the lifting rod, the traction rope passes through one side of the obstacle. The clamp is used to pull the traction rope over the next obstacle, and the other clamp is used to pull the traction rope down. Then the bolts are loosened, the misaligned traction rope is pulled back to the side of the obstacle, and the traction rope on the correct side is pulled to move the fixing frame, completing the traction rope passing through the obstacle. This setting makes it easy to adjust the position of the traction rope. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting rod connection of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection of the fixing frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing clip connection of this utility model.

[0019] The components are as follows: 1. Fixing frame; 2. Clip-on frame; 3. Fixing clamp; 4. Traction rope; 201. Fixing part; 22. Telescopic part; 203. Return spring; 204. Pull rope; 205. Sliding groove; 221. Male plug rod; 222. Female plug rod; 5. Sliding sleeve; 6. Friction positioning groove; 7. Friction positioning block; 8. Threaded shaft; 9. Lifting rod; 10. Bolt; 11. Clip. Detailed Implementation

[0020] 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.

[0021] See Figure 1-4 An overhead traction device for laying optical cables includes symmetrically arranged fixed frames 1. At the front and rear ends of the two fixed frames 1 that are close to each other, staggered clamping frames 2 are provided. A fixing clip 3 for fixing a guide rope is provided on the surface of the fixed frames 1. A traction rope 4 is fixedly installed at the front end of the clamping frame 2. The clamping frame 2 includes a fixing part 201, which is fixedly connected to the fixed frame 1. A telescopic part 22 is slidably connected to the middle of the fixing part 201. Two symmetrical telescopic parts 22 are interlocked. A return spring 203 is provided between the telescopic part 22 and the fixing part 201. A pull rope 204 is provided on the side of the telescopic parts 22 that are far apart from each other. The pull rope 204 extends to the outside of the fixing part 201 and is slidably connected to the fixing part 201. The pull ropes 204 on the left and right sides are connected to each other and located below the clamping frame 2.

[0022] The fixing part 201 is C-shaped with both ends protruding outwards. This arrangement increases the distance between the front telescopic part 22 and the rear telescopic part 22, thereby allowing it to cross wider obstacles.

[0023] The front and rear ends of one side of the fixed part 201 are respectively provided with sliding grooves 205 arranged side by side. The telescopic part 22 is slidably connected inside the sliding groove 205. By providing two sets of sliding grooves 205 on one side, the relative rotation of the two fixed parts 201 can be avoided when connected on one side.

[0024] The telescopic part 22 is divided into a male plug rod 221 and a female plug rod 222. The male plug rod 221 is inserted into the inside of the female plug rod 222. The fixing part 201 on the same side of the same end is connected to a male plug rod 221 and a female plug rod 222. With this arrangement, the male plug rod 221 and the female plug rod 222 can be inserted into each other, so that they can be spliced ​​into a whole and thus drive the whole to move.

[0025] The fixed clamp 3 has sliding sleeves 5 that are slidably connected to the outer surface of the fixed frame 1 at both ends. The fixed frame 1 has a friction positioning groove 6 on the outside. The friction positioning groove 6 is slidably connected to a friction positioning block 7. The friction positioning block 7 is rotatably connected to a threaded shaft 8 in the middle. The threaded shaft 8 is threadedly connected to the sliding sleeve 5. With this arrangement, the position of the fixed clamp 3 can be adjusted to adapt to different wiring spacings.

[0026] A lifting rod 9 is provided at the end of the traction rope 4 away from the clamping frame 2. The symmetrical traction ropes 4 are connected by bolts 10. The lifting rod 9 is L-shaped. The horizontal end is clamped to the outer surface of the traction rope 4 by a clamp 11. The length of the vertical end of the lifting rod 9 is adjustable. After the traction rope 4 passes through the obstacle, the bolts 10 on both sides are connected to make the traction rope 4 a whole. By lifting the lifting rod 9, the traction rope 4 passes through one side of the obstacle. The clamp 11 is used to drive the traction rope 4 over the next obstacle. The other clamp 11 is used to pull the traction rope 4 down. Then the bolts 10 are loosened, the misaligned traction rope 4 is pulled back to the side of the obstacle, and the traction rope 4 on the correct side is pulled to drive the fixing frame 1 to move, thus completing the passage of the traction rope 4 through the obstacle.

[0027] In use, the traction rope 4 can move the fixed frame 1 and the snap-fit ​​frame 2. When the fixed frame 1 is located at the overhead support, the telescopic part 22 is retracted by pulling the pull ropes 204 on both sides of the front. At this time, the two fixed frames 1 are connected by the telescopic parts 22 on both sides of the rear. By pulling the traction rope 4, the fixed frame 1 is moved forward. At this time, the two fixed frames 1 wrap around the obstacle until the telescopic part 22 at the rear contacts the obstacle. Then, the pull ropes 204 on both sides of the front are released to reset the snap-fit ​​on both sides of the front. The pull ropes 204 on both sides of the rear are pulled to separate the telescopic parts 22 on both sides of the rear. Pulling the traction rope 4 completes the effect of the fixed frame 1 overcoming the obstacle.

[0028] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An overhead pulling device for optical cable installation, comprising a fixed frame (1) arranged symmetrically, characterized in that: Two fixed frames (1) are provided with staggered and separated clamping frames (2) at the front and rear ends of one side close to each other, the surface of the fixed frame (1) is provided with a fixed clamp (3) for fixing the guide rope, the front end of the clamping frame (2) is fixedly provided with a traction rope (4); The clamping frame (2) comprises a fixed part (201) fixedly connected with the fixed frame (1), a telescopic part (22) slidably connected with the middle part of the fixed part (201), the two telescopic parts (22) are inserted with each other, a reset spring (203) is arranged between the telescopic part (22) and the fixed part (201), a pull rope (204) is arranged on the side away from each other of the telescopic part (22), the pull rope (204) extends to the outside of the fixed part (201) and is slidably connected with the fixed part (201), and the pull ropes (204) on the left and right sides are connected with each other and located below the clamping frame (2).

2. An aerial pulling device for optical cable installation according to claim 1, characterized in that: The fixed part (201) is in the shape of "C" and the front and rear ends are outwardly protruding.

3. An aerial pulling device for optical cable installation according to claim 2, characterized in that: The fixed part (201) is provided with front and rear sliding grooves (205) in parallel on one side.

4. The overhead pulling device for optical cable installation according to any one of claims 1-3, characterized in that: The telescopic part (22) is divided into a male plug-in rod (221) and a female plug-in rod (222), the male plug-in rod (221) is inserted into the female plug-in rod (222), and the fixed part (201) on one side of the same end is connected with one male plug-in rod (221) and one female plug-in rod (222).

5. An aerial cable-laying traction device according to claim 4, characterized in that: The two ends of the fixed clamp (3) are provided with a sliding sleeve (5) slidably connected with the outer surface of the fixed frame (1), the outer side of the fixed frame (1) is provided with a friction positioning groove (6), a friction positioning block (7) is slidably connected in the friction positioning groove (6), a threaded shaft (8) is rotatably connected with the middle part of the friction positioning block (7), and the threaded shaft (8) is threadedly connected with the sliding sleeve (5).

6. An aerial cable-laying pulling device according to claim 4, characterized in that: The end of the traction rope (4) away from the clamping frame (2) is provided with a lifting rod (9), the symmetric traction ropes (4) are connected through bolts (10), the lifting rod (9) is in the shape of "L", the horizontal end is clamped on the outer surface of the traction rope (4) through a clamp (11), and the length of the vertical end of the lifting rod (9) is adjustable.

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