Cable stringing device

Abstract

The utility model discloses a cable stringing device, including cable post, cross arm, first guide pulley, second guide pulley, tow rope and traction mechanism, cross arm is located at the top of cable post, and is equipped with hanging pole at both ends, and first guide pulley is hung on the hanging pole through the guide pulley support of the vertical plate with the limiting screw rod, and the guide pulley support is composed of L-shaped clamping piece and I-shaped clamping piece and forms cable opening, second guide pulley is located at the lower end of cable wind rope of one side of cable post, and after cable is connected with tow rope, it is arranged through two guide pulleys, and tow rope is connected to ground traction mechanism. The device reduces the traction resistance through double guide pulley guidance, and the guide pulley support realizes cable limiting and flexible dismounting, and the mechanized traction cooperates personnel to climb without load, solves the low efficiency of traditional stringing, the poor safety and the cable easy wear and tear problem, reaches the stringing effect of high efficiency, safety and cable protection, is applicable to the power and communication cable erection engineering.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, specifically a cable laying device. Background Technology

[0002] In fields such as power transmission and communication network construction, cable laying is a fundamental and crucial engineering step, and its construction efficiency and operational safety directly affect the project progress and subsequent operational stability. Currently, traditional cable laying operations usually rely on manual labor and simple tools. In practice, cable posts are first set up at intervals along the laying path, and after a crossarm is fixed to the top of the cable post, construction workers climb to the height of the crossarm, manually pull the cable to the predetermined position on the crossarm, and then fix it.

[0003] However, this traditional cable-laying method has many drawbacks: First, when manually pulling cables, direct friction easily occurs between the cable and the crossarm or other components, which not only increases the pulling resistance but may also cause wear on the cable's outer sheath, affecting the cable's insulation performance and service life, posing a safety hazard; second, construction workers need to perform cable positioning and fixing operations at height, which is labor-intensive and affected by factors such as working height and weather conditions, resulting in low operational safety and a high risk of falls from heights; third, manual pulling is inefficient, especially when laying long-distance or thick-gauge cables, requiring a large amount of manpower, resulting in a long construction period and high labor costs. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a cable stringing device that can solve the problems of low construction efficiency, poor safety, easy cable wear and insufficient applicability of existing cable stringing devices, and achieve the effects of efficient and safe traction, flexible installation of guide wheels and reliable limiting.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a cable stringing device, including a cable post, a crossarm at the top of the cable post, a first guide wheel on the crossarm, a second guide wheel on the guy rope on one side of the cable post near the lower end, the cable to be strung is connected to the traction rope and then passes through the first guide wheel and the second guide wheel, and one end of the traction rope is connected to the traction mechanism on the ground.

[0006] In a preferred embodiment, both ends of the crossarm are provided with hanging rods, and the first guide wheel is hung on the hanging rods.

[0007] In a preferred embodiment, the first guide wheel is fixed to the first guide wheel bracket, the top of the first guide wheel bracket is provided with two upright plates, a horizontal limiting screw is inserted between the upright plates, and the limiting screw rests on the hanging rod.

[0008] In a preferred embodiment, the first guide wheel bracket includes an L-shaped clamp and an I-shaped clamp, the first guide wheel bracket is disposed between the L-shaped clamp and the I-shaped clamp, the lower ends of the L-shaped clamp and the I-shaped clamp are connected by a connecting rod to form a whole, and the L-shaped clamp and the I-shaped clamp form an opening on one side above the first guide wheel for the cable to pass through radially.

[0009] In a preferred embodiment, the upright plate is fixed to the top surface of the upper horizontal section of the L-shaped clamp.

[0010] In a preferred embodiment, a clamp is provided on the cable post below the crossarm, and the clamp provides comprehensive support to the crossarm.

[0011] In a preferred embodiment, the traction mechanism is a tractor, and a rope reel for winding the traction rope is provided on the power output interface of the tractor head to form the traction mechanism.

[0012] The cable stringing device provided by this utility model, by adopting the above-described structure, has the following beneficial effects: (1) By setting the first guide wheel on the crossarm and the second guide wheel at the lower end of the guy rope, a double guide structure is formed. The traction rope drives the cable to roll forward along the guide wheel, which greatly reduces the traction resistance. At the same time, the first guide wheel is hung on the crossarm hanging rod through the vertical plate and the limit screw. During installation, only the limit screw needs to be adjusted to complete the fixation. The disassembly process is simple and quick. The position of the guide wheel can be flexibly adjusted according to the erection requirements, avoiding the cumbersome disassembly and assembly of the traditional fixed guide wheel, and effectively shortening the construction cycle. (2) The first guide wheel bracket adopts a combination structure of L-shaped clamp and I-shaped clamp, forming a horizontal opening above the guide wheel. This facilitates the cable to be placed into the guide wheel groove and also provides lateral restraint for the cable, preventing the cable from coming off the guide wheel during traction. The guiding effect of the double guide wheels makes the cable's force direction more stable, avoids direct friction between the cable and crossarm and other components, reduces wear on the outer sheath, and ensures the cable's insulation performance and service life. In addition, after the traction rope is connected to the cable, it is pulled through the guide wheel, avoiding the cable from directly bearing the tensile impact of the traction mechanism and reducing the probability of cable twisting or breaking. (3) Compared with traditional cable laying, which requires construction workers to hold the cable and climb and pull it at high altitude, resulting in high physical exertion and risk of falling, this device completes cable traction through ground traction mechanism and guide wheel. When climbing, personnel do not need to hold the cable. They only need to operate the traction equipment and monitor the cable status on the ground, which greatly reduces the safety hazards during the climbing process. After the traction is completed, the personnel can climb to the crossarm to take the cable out from the first guide wheel bracket and fix it on the insulator. In the overall operation, mechanized traction replaces manual labor, reducing physical exertion. It is especially suitable for long-distance and large-specification cable laying scenarios, improving the safety and comfort of the operation. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the crossbeam structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the first guide wheel bracket structure of this utility model.

[0016] In the diagram: 1. Cable post; 2. Crossarm; 3. First guide wheel; 4. Cable; 5. Traction rope; 6. Traction mechanism; 7. Second guide wheel; 8. Guy rope; 9. Clamp; 10. First guide wheel bracket; 10. L-shaped clamp; 1001. I-shaped clamp; 1002. Insulator; 11. Vertical plate; 12. Limiting screw; 13. Connecting rod; 14. Hanging rod; 15. Detailed Implementation

[0017] like Figure 1-3 In a cable stringing device, there is a cable post 1, a crossarm 2 on the top of the cable post 1, a first guide wheel 3 on the crossarm 2, and a second guide wheel 7 on the guy rope 8 on one side of the cable post 1 near the lower end. The cable 4 to be strung is connected to the traction rope 5 and then passes through the first guide wheel 3 and the second guide wheel 7. One end of the traction rope 5 is connected to the traction mechanism 6 on the ground.

[0018] In the preferred embodiment, both ends of the crossbeam 2 are provided with hanging rods 15, and the first guide wheel 3 is hung on the hanging rods 15.

[0019] In a preferred embodiment, the first guide wheel 3 is fixed on the first guide wheel bracket 10, and the top of the first guide wheel bracket 10 is provided with two upright plates 12. A horizontal limiting screw 13 is passed through the upright plates 12, and the limiting screw 13 rests on the hanging rod 15.

[0020] In a preferred embodiment, the first guide wheel bracket 10 includes an L-shaped clamp 1001 and an I-shaped clamp 1002. The first guide wheel bracket 10 is disposed between the L-shaped clamp 1001 and the I-shaped clamp 1002. The lower ends of the L-shaped clamp 1001 and the I-shaped clamp 1002 are connected by a connecting rod 14 to form an integral whole. The L-shaped clamp 1001 and the I-shaped clamp 1002 form an opening on one side above the first guide wheel 3 for the cable 4 to pass through radially.

[0021] In a preferred embodiment, the upright plate 12 is fixed to the top surface of the upper horizontal section of the L-shaped clamp 1001.

[0022] In a preferred embodiment, a clamp 9 is provided on the cable post 1 below the crossarm 2, and the clamp 9 provides comprehensive support for the crossarm 2.

[0023] In a preferred embodiment, the traction mechanism 6 is a tractor, and a rope reel for winding the traction rope 5 is provided on the power output interface of the tractor head to form the traction mechanism 6.

[0024] The working principle of this device is as follows: First, the first guide wheel 3 is hung on the hanging rods 15 at both ends of the crossarm 2 by the limiting screw 13, and the limiting screw 13 is adjusted to keep the first guide wheel 3 horizontal; the second guide wheel 7 is fixed at the lower end of the guy rope 8 on one side of the cable post 1 to ensure that the guide wheel groove of the second guide wheel 7 and the first guide wheel 3 are in the same vertical plane, so as to reduce the offset resistance when the cable 4 is pulled.

[0025] Next, the cable is connected and pulled. One end of the cable 4 to be laid is securely tied to the traction rope 5. The cable 4 is placed into the guide wheel groove through the opening above the first guide wheel 3. The traction rope 5 is then passed down through the guide wheel groove of the second guide wheel 7 and connected to the tractor's rope reel. The tractor is started, and the rope reel is rotated through the power output interface. The rope reel winds the traction rope 5 to generate traction force. After the traction rope 5 changes the direction of force through the second guide wheel 7, it drives the cable 4 to move upward along the guide wheel groove of the first guide wheel 3. The rolling friction of the double guide wheels replaces the traditional sliding friction, greatly reducing the traction resistance. At the same time, the L-shaped clamp 1001 and I-shaped clamp 1002 of the first guide wheel bracket 10 laterally limit the cable 4 to prevent it from coming out of the guide wheel groove.

[0026] Once cable 4 has been pulled to the preset length, the tractor is stopped and the rope reel is locked. Workers then climb to crossarm 2 and remove cable 4 from the opening above the first guide wheel 3. Cable 4 is then secured to the pre-installed insulator on crossarm 2, completing the installation of a single cable. Throughout the process, mechanized traction replaces manual pulling. Workers do not need to hold cable 4 while climbing; they only need to secure it after traction. This improves construction efficiency, ensures operational safety, and avoids direct friction between cable 4 and structural components, protecting cable 4 from damage.

Claims

1. A cable stringing device, comprising a cable post (1), wherein a crossarm (2) is provided at the top of the cable post (1), characterized in that: The crossarm (2) is provided with a first guide wheel (3), and the guy rope (8) on one side of the cable post (1) is provided with a second guide wheel (7) near the lower end. The cable (4) to be erected is connected to the traction rope (5) and then passes through the first guide wheel (3) and the second guide wheel (7). One end of the traction rope (5) is connected to the traction mechanism (6) on the ground.

2. The cable stringing device according to claim 1, characterized in that: Both ends of the crossarm (2) are provided with hanging rods (15), and the first guide wheel (3) is hung on the hanging rods (15).

3. A cable stringing device according to claim 2, characterized in that: The first guide wheel (3) is fixed on the first guide wheel bracket (10). The top of the first guide wheel bracket (10) is provided with two upright plates (12). A horizontal limiting screw (13) is passed between the upright plates (12). The limiting screw (13) rests on the hanging rod (15).

4. A cable stringing device according to claim 3, characterized in that: The first guide wheel bracket (10) includes an L-shaped clamp (1001) and an I-shaped clamp (1002). The first guide wheel bracket (10) is disposed between the L-shaped clamp (1001) and the I-shaped clamp (1002). The lower ends of the L-shaped clamp (1001) and the I-shaped clamp (1002) are connected by a connecting rod (14) to form an integral whole. The L-shaped clamp (1001) and the I-shaped clamp (1002) form an opening on one side above the first guide wheel (3) for the cable (4) to pass through radially.

5. A cable stringing device according to claim 4, characterized in that: The upright plate (12) is fixed to the top surface of the upper horizontal section of the L-shaped clamp (1001).

6. A cable stringing device according to claim 1, characterized in that: A clamp (9) is provided on the cable post (1) below the crossarm (2), and the clamp (9) provides comprehensive support for the crossarm (2).

7. A cable stringing device according to claim 1, characterized in that: The traction mechanism (6) is a tractor, and a rope reel for winding the traction rope (5) is provided on the power output interface of the tractor head to form the traction mechanism (6).

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