Cable traction device for high-voltage power engineering construction
By designing the electric push rod and the coordination between the friction block and the brake ring, the problem of excessive cable length when the motor stops driving is solved, achieving precise control of cable traction and ensuring the safe and efficient construction of high-voltage power projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEI MENG GU CHAO GAO YA GONG DIAN JU
- Filing Date
- 2025-08-07
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, when the motor stops driving, the drum continues to rotate due to inertia, resulting in excessively long cables, which causes inconvenience to high-voltage power engineering construction.
A cable traction device for high-voltage power engineering construction was designed. It utilizes the cooperation of an electric push rod and friction block with a brake ring. The controller controls the connection and separation of the motor and coupling. Combined with the contact and separation of the friction block and brake ring, the inertial rotation of the traction frame is prevented.
This effectively prevents the cable from continuing to extend due to inertia when the drive stops, ensuring the safety and efficiency of the construction process.
Smart Images

Figure CN224298628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage power construction technology, specifically to a cable traction device for high-voltage power engineering construction. Background Technology
[0002] In high-voltage power engineering construction, cable traction is a key step to ensure safe and efficient laying. Traction construction can precisely control the force on the cable and prevent insulation damage or conductor deformation caused by uneven tension during manual laying.
[0003] A search revealed an existing technology (publication number: CN221916758U) for a cable placement rack, which states that it "includes a base; a first support rod and a second support rod are fixedly connected to the top of the base; each of the first and second support rods has a clamp at its top; a rotating shaft is rotatably connected between a pair of clamps; a drum is provided on the outer circular wall of the rotating shaft through a connector; a motor is fixedly connected to the side wall of the first support rod through a fixing plate; a first gear is fixedly connected to the output end of the motor; and a second gear is fixedly connected to one end of the rotating shaft." This existing technology requires a motor to drive the drum when pulling the cable out. However, even when the motor stops, the drum continues to rotate due to inertia, continuing to pull the cable out. This can easily lead to excessively long cables during high-voltage power engineering construction, causing inconvenience to the construction work. Therefore, it is necessary to design a cable pulling device for high-voltage power engineering construction. Utility Model Content
[0004] The purpose of this utility model is to provide a cable traction device for high-voltage power engineering construction, which solves the problem in related technologies where, when the motor stops driving, the drum continues to rotate due to inertia, continuing to send out the cable, which easily leads to excessively long cables during high-voltage power engineering construction, causing inconvenience to the construction work.
[0005] The technical solution of this utility model is as follows:
[0006] A cable traction device for high-voltage power engineering construction includes a traction frame. A central shaft is screwed to the center of the traction frame, and supports are mounted on both ends of the central shaft via bearings. An electric push rod is screwed onto one of the supports, and a support plate is screwed to the telescopic end of the electric push rod. A shock-absorbing seat is screwed to the top of the support plate, and a motor is screwed to the top of the shock-absorbing seat. A coupling is screwed to one end of the central shaft, and the telescopic end of the motor extends into the coupling. A vertical rod is welded to the top end face of the support plate, and a connecting rod is hinged to the top end of the vertical rod. A telescopic rod is screwed to the top of one of the supports, and a base is screwed to the telescopic end of the telescopic rod. A friction block is provided above the top of the base, and a pair of support rods are screwed to the bottom of the friction block. A base plate is hinged to the other end of the connecting rod, and the bottom end of the support rod passes through the base and is screwed and fixed to the base plate.
[0007] Preferably, a brake ring is screwed onto one side of the outer wall of the traction frame, and the base and friction block are located at the top and bottom of the brake ring, respectively.
[0008] Preferably, the top of the base is fitted with the inner wall of the brake ring, the bottom of the friction block is fitted with the outer wall of the brake ring, the friction block is made of nitrile rubber, and the friction block is provided with anti-slip texture.
[0009] Preferably, the traction frame has several reinforcing rods welded at equal intervals inside.
[0010] Preferably, a movable seat is provided at the bottom of the traction frame, and casters are screwed around the bottom of the movable seat. A handle is screwed onto the movable seat, and one bottom end of the bracket is screwed and fixed to the top end face of the movable seat.
[0011] Preferably, both outer walls of the movable seat are equipped with support seats via limiting pivots, and the bottom of the support seats is flush with the bottom of the caster wheel.
[0012] Preferably, the shock absorber base consists of four dampers and a horizontal plate. The four dampers are located around the bottom of the horizontal plate, and the horizontal plate is screwed to the bottom of the motor.
[0013] Preferably, a controller is screwed onto the bottom end face of the support plate.
[0014] The beneficial effects of this utility model are:
[0015] The controller activates the electric push rod, which moves the support plate towards the bracket. This allows the motor output to align with the coupling. Simultaneously, as the support plate moves, the vertical rod moves in sync and, under the action of the connecting rod, lifts the base plate upwards, separating the friction block from the brake ring. At this point, the motor drives the central shaft to rotate the traction frame counterclockwise, pulling the cable out for high-voltage power construction. Once the cable is extended, the motor stops rotating, and the electric push rod pushes the support plate outwards, separating the motor from the coupling. As the support plate moves outwards, the connecting rod pulls the base plate downwards. Through the support rod transmission, the friction block moves downwards and engages with the brake ring, preventing the traction frame from continuously rotating. This effectively avoids the traction frame from continuing to rotate due to inertia when the motor stops, preventing the cable from extending too far and causing inconvenience to construction work. Attached Figure Description
[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0017] Figure 1 This is an isometric view of the entire utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the back structure of this utility model;
[0020] Figure 4 This is an overall sectional view of the present invention.
[0021] In the diagram: 1. Traction frame; 2. Central shaft; 3. Bracket; 4. Electric push rod; 5. Support plate; 6. Shock absorber seat; 7. Motor; 8. Coupling; 9. Vertical rod; 10. Connecting rod; 11. Telescopic rod; 12. Base; 13. Friction block; 14. Support rod; 15. Base plate; 16. Brake ring; 17. Reinforcing rod; 18. Moving seat; 19. Caster wheel; 20. Handle; 21. Support seat; 22. Controller. Detailed Implementation
[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0023] like Figure 1-4As shown in the figure, this embodiment proposes a cable traction device for high-voltage power engineering construction, including a traction frame 1. A central shaft 2 is screwed to the center of the traction frame 1, and brackets 3 are mounted on both ends of the central shaft 2 via bearings. An electric push rod 4 is screwed onto one bracket 3, and a support plate 5 is screwed to the telescopic end of the electric push rod 4. A shock absorber 6 is screwed to the top of the support plate 5, and a motor 7 is screwed to the top of the shock absorber 6. A coupling 8 is screwed to one end of the central shaft 2, and the telescopic end of the motor 7 extends into the coupling 8. A vertical rod 9 is welded to the top end face of the support plate 5, and one end of the vertical rod 9 is hinged. A connecting rod 10 is attached to the top of a bracket 3, and a telescopic rod 11 is screwed onto the top of the telescopic rod 11. A base 12 is screwed onto the telescopic end of the telescopic rod 11. A friction block 13 is provided above the top of the base 12, and a pair of support rods 14 are screwed onto the bottom of the friction block 13. A base plate 15 is hinged to the other end of the connecting rod 10, and one bottom end of the support rod 14 passes through the base 12 and is screwed onto the base plate 15. A brake ring 16 is screwed onto the outer wall of one side of the traction frame 1. The base 12 and the friction block 13 are located at the top and bottom of the brake ring 16, respectively. The top of the base 12 is in contact with the inner wall of the brake ring 16. The bottom of the friction block 13 is in contact with the outer wall of the brake ring 16. The friction block 13 is made of nitrile rubber and has anti-slip texture. By contacting and pressing the friction block 13 and the brake ring 16, the traction frame 1 can be fixed by friction. Several reinforcing rods 17 are welded at equal intervals inside the traction frame 1 to increase the sturdiness of the traction frame 1. A movable seat 18 is provided at the bottom of the traction frame 1, and universal wheels 19 are screwed to the bottom of the movable seat 18. A handle 20 is screwed to the movable seat 18. One bottom end of the bracket 3 is screwed to the top end face of the movable seat 18. The connection is fixed. By pushing the handle 20, the movable seat 18 can be moved under the action of the caster wheel 19. The outer walls on both sides of the movable seat 18 are equipped with support seats 21 through the limiting pivot. The bottom of the support seats 21 is flush with the bottom of the caster wheel 19. The support seats 21 can support the movable seat 18, which can provide support for the movable seat 18 when it stops moving. The shock absorber 6 is composed of four dampers and a cross plate. The four dampers are located around the bottom of the cross plate. The cross plate is screwed to the bottom of the motor 7. The bottom end face of the support plate 5 is screwed with a controller 22.
[0024] In this embodiment, the electric push rod 4, motor 7, telescopic rod 11, and controller 22 used are all existing mature technologies. The controller 22 is used to control the electric push rod 4 and motor 7, so it will not be described in detail below. In use, the controller 22 starts the electric push rod 4, causing it to move the support plate 5 towards the bracket 3. This allows the output end of the motor 7 to connect with the coupling 8. Simultaneously, as the support plate 5 moves, the vertical rod 9 moves synchronously and, under the action of the connecting rod 10, can lift the base plate 15 upwards, thereby separating the friction block 13 from the brake ring 16. At this time, the motor 7 drives the central shaft 2 to rotate the traction frame 1 counterclockwise, which can pull the cable forward. To facilitate high-voltage power construction, once the cable extends, the motor 7 stops rotating and the electric push rod 4 pushes the support plate 5 outward, allowing the motor 7 to separate from the coupling 8. As the support plate 5 moves outward, the connecting rod 10 pulls the base plate 15 downward. Through the transmission of the support rod 14, the friction block 13 can move downward and fit against the brake ring 16, thus preventing the traction frame 1 from rotating continuously. By pushing the handle 20, the universal wheel 19 can drive the moving seat 18 to move. By rotating the support seat 21, it can be flipped over. The support seat 21 can support the moving seat 18, providing support when the movement stops.
[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A cable traction device for high-voltage power engineering construction, comprising a traction frame (1), characterized in that, A central shaft (2) is screwed into the center of the traction frame (1), and brackets (3) are mounted on both ends of the central shaft (2) via bearings. An electric push rod (4) is screwed onto one of the brackets (3), and a support plate (5) is screwed onto the telescopic end of the electric push rod (4). A shock absorber (6) is screwed onto the top of the support plate (5), and a motor (7) is screwed onto the top of the shock absorber (6). A coupling (8) is screwed onto one end of the central shaft (2), and the telescopic end of the motor (7) extends into the coupling (8). The top end of the support plate (5) A vertical rod (9) is welded to the surface, and a connecting rod (10) is hinged to the top end of the vertical rod (9). A telescopic rod (11) is screwed to the top of one of the brackets (3), and a base (12) is screwed to the telescopic end of the telescopic rod (11). A friction block (13) is provided above the top of the base (12), and a pair of support rods (14) are screwed to the bottom of the friction block (13). A base plate (15) is hinged to the other end of the connecting rod (10), and one end of the support rod (14) passes through the base (12) and is screwed to the base plate (15).
2. The cable traction device for high-voltage power engineering construction according to claim 1, characterized in that, A brake ring (16) is screwed onto one side of the outer wall of the traction frame (1), and the base (12) and friction block (13) are located at the top and bottom of the brake ring (16), respectively.
3. The cable traction device for high-voltage power engineering construction according to claim 2, characterized in that, The top of the base (12) is in contact with the inner wall of the brake ring (16), and the bottom of the friction block (13) is in contact with the outer wall of the brake ring (16). The friction block (13) is made of nitrile rubber and has anti-slip texture.
4. A cable traction device for high-voltage power engineering construction according to claim 1, characterized in that, The traction frame (1) has several reinforcing rods (17) welded at equal intervals inside.
5. A cable traction device for high-voltage power engineering construction according to claim 1, characterized in that, The bottom of the traction frame (1) is provided with a movable seat (18), and the bottom of the movable seat (18) is screwed with casters (19) on all four sides. The movable seat (18) is screwed with a handle (20), and the bottom end of the bracket (3) is screwed to the top end face of the movable seat (18).
6. A cable traction device for high-voltage power engineering construction according to claim 5, characterized in that, The outer walls of both sides of the movable seat (18) are equipped with support seats (21) through limiting pivots, and the bottom of the support seats (21) is flush with the bottom of the caster wheel (19).
7. A cable traction device for high-voltage power engineering construction according to claim 1, characterized in that, The shock absorber seat (6) consists of four dampers and a horizontal plate. The four dampers are located around the bottom of the horizontal plate, and the horizontal plate is screwed to the bottom of the motor (7).
8. A cable traction device for high-voltage power engineering construction according to claim 1, characterized in that, The bottom end face of the support plate (5) is screwed with a controller (22).