Cable tensioning device

Abstract

The utility model relates to the technical field of tensioner, especially a kind of cable tensioner, it improves the flexibility and reliability of cable tensioning adjustment, reduces the energy consumption of cable tensioning adjustment;Including guide arm and support, support is installed on the outer lateral wall upper portion of guide arm;Still include counterweight device two groups of first guide wheel, second guide wheel and connecting piece, two groups of first guide wheel are all parallelly installed on the outer lateral wall upper portion of support, second guide wheel is arranged between two groups of first guide wheel, cable upper portion is respectively above two groups of first guide wheel, cable middle part is below second guide wheel, the bottom end of second guide wheel is connected with the top end of connecting piece, counterweight device is slidably installed on the outer lateral wall of guide arm, the bottom end of connecting piece is connected with counterweight device, and counterweight device is used to provide counterweight for second guide wheel.

Description

Technical Field

[0001] This utility model relates to the technical field of tensioning devices, and in particular to a cable tensioning device. Background Technology

[0002] Cable tensioning devices play a crucial role in the laying and fixing of wires and cables. With the rapid development of industries such as power and communications, cable laying and maintenance have become increasingly complex, and the demand for cable tensioning devices is also increasing.

[0003] Currently, among existing tensioning devices, such as the patent with authorization announcement number CN218538800U, this utility model relates to the field of cable production technology, especially to a tensioning device for cable packaging, which includes a base, on which a tensioning component is provided, and the tensioning component is fixedly connected to the base; the tensioning component includes a transmission mechanism, a tensioning wheel, a rotating shaft, a tensioning wheel mounting bracket, and a controller.

[0004] However, during the use of the device, it was found that the device relies on a cylinder to drive the tensioning wheel to move up and down to adjust the cable tension control, which reduces the reliability of use and increases the energy consumption of cable tension control. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cable tensioning device that improves the flexibility and reliability of cable tension adjustment and reduces the energy consumption of cable tension adjustment.

[0006] This utility model discloses a cable tensioning device, comprising a guide arm and a bracket, the bracket being mounted on the upper part of the outer wall of the guide arm; it also includes a counterweight device, two sets of first guide wheels, a second guide wheel, and a connector. The two sets of first guide wheels are mounted parallel to each other on the upper part of the outer wall of the bracket, and the second guide wheel is positioned between the two sets of first guide wheels. The upper part of the cable passes above the two sets of first guide wheels respectively, and the middle part of the cable passes below the second guide wheel. The bottom end of the second guide wheel is connected to the top end of the connector. The counterweight device is slidably mounted on the outer wall of the guide arm, and the bottom end of the connector is connected to the counterweight device. The counterweight device provides counterweight to the second guide wheel. When both ends of the cable are under tension, the cable drives the second guide wheel to move upward, thereby causing the second guide wheel to drive the counterweight to slide upward through the connector. When both ends of the cable become loose, the counterweight provides downward gravity to the second guide wheel, causing the second guide wheel to pull the middle part of the cable downward. This facilitates keeping both ends of the cable taut at all times, improving the flexibility and reliability of tension adjustment, and reducing the energy consumption for cable tension adjustment.

[0007] Preferably, the counterweight device includes a limiting device, a counterweight box, a kit, a support plate, a friction block, multiple sets of telescopic rods, and multiple sets of springs. The counterweight box is connected to the outer wall of the kit. The kit is slidably mounted on the outer wall of the guide arm. The counterweight box and kit have through holes. The friction block is mounted on the outer wall of the support plate. The fixed ends of the multiple sets of telescopic rods are mounted on the inner wall of the counterweight box, and the moving ends of the multiple sets of telescopic rods are connected to the outer wall of the support plate. Multiple sets of springs are respectively fitted onto the multiple sets of telescopic rods. The limiting device is located inside the counterweight box and is used to limit the position of the support plate. By limiting the position of the support plate, the support plate compresses the multiple sets of telescopic rods and springs. When the cable breaks, causing the counterweight box to fall, the limiting device stops limiting the support plate, causing the multiple sets of springs to push the support plate to move quickly. This causes the friction block to pass through the through holes in the counterweight box and kit and press against the outer wall of the guide arm, thereby decelerating and braking the counterweight box, reducing the risk of a falling collision and improving safety.

[0008] Preferably, the limiting device includes a driving device, two sets of rotating shafts, and two sets of limiting rods. The two sets of rotating shafts are rotatably mounted on the inner side wall of the counterweight box, and the two sets of limiting rods are respectively mounted on the two sets of rotating shafts. The front ends of the two sets of limiting rods hook onto the support plate. By hooking and limiting the support plate with the two sets of limiting rods, a distance is maintained between the friction block and the guide arm. The driving device drives the two sets of rotating shafts to rotate in opposite directions, causing the two sets of rotating shafts to swing in opposite directions, thereby separating the two sets of limiting rods from the support plate and improving the convenience of braking the counterweight box by the friction block.

[0009] Preferably, the driving device includes two sets of worm gears, a worm, and a motor. The two sets of worm gears are respectively mounted on the outer walls of the two sets of rotating shafts. The worm is rotatably mounted on the inner wall of the counterweight box and meshes with the two sets of worm gears. The motor is mounted on the inner wall of the counterweight box, and the output end of the motor is connected to the worm. The motor drives the worm to rotate, which in turn drives the two sets of rotating shafts to rotate through meshing with the two sets of worm gears. This causes the two sets of limit rods to swing in opposite directions, improving the convenience of limit control of the support plate.

[0010] Preferably, it also includes an acceleration sensor and a controller, which are respectively installed on the inner side wall of the counterweight box; the movement of the counterweight box is detected by the acceleration sensor, and when the rapid descent of the counterweight box is detected, the motor is controlled by the controller to decelerate and brake the counterweight box.

[0011] Preferably, it also includes a storage battery, which is installed on the inner side wall of the counterweight box; the storage battery powers the acceleration sensor and controller, improving the ease of use of the acceleration sensor and controller.

[0012] Preferably, an inspection port is provided on the outer wall of the counterweight box to improve the convenience of inspection and maintenance of the equipment inside the counterweight box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: when both ends of the cable are under tension, the cable drives the second guide wheel to move upward, thereby causing the second guide wheel to drive the counterweight to slide upward through the connector. When both ends of the cable become loose, the counterweight provides downward gravity to the second guide wheel, thereby causing the second guide wheel to pull the middle of the cable downward, thus making it easier to keep both ends of the cable in a taut state, improving the flexibility and reliability of tension adjustment, and reducing the energy consumption of cable tension adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram showing the connection between the bracket and the first guide wheel, etc. Figure 3 This is a partial structural diagram showing the connection between the second guide wheel and the connecting parts, etc. Figure 4 This is a partial isometric structural diagram of the connection between the worm gear and the motor, etc. Figure 5 This is a partial isometric structural diagram showing the connection between the heavy box and the acceleration sensor, etc.

[0015] The following are labels in the attached diagram: 1. Guide arm; 2. Bracket; 3. First guide wheel; 4. Second guide wheel; 5. Connector; 6. Counterweight box; 7. Kit; 8. Support plate; 9. Friction block; 10. Telescopic rod; 11. Spring; 12. Shaft; 13. Limiting rod; 14. Worm gear; 15. Worm; 16. Motor; 17. Accelerometer; 18. Controller; 19. Battery. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0017] Example 1 like Figures 1 to 5As shown, this utility model discloses a cable tensioning device, which includes a guide arm 1 and a bracket 2. The bracket 2 is installed on the upper part of the outer wall of the guide arm 1. It also includes a counterweight device, two sets of first guide wheels 3, a second guide wheel 4, and a connector 5. The two sets of first guide wheels 3 are installed parallel to each other on the upper part of the outer wall of the bracket 2. The second guide wheel 4 is disposed between the two sets of first guide wheels 3. The upper part of the cable passes above the two sets of first guide wheels 3 respectively, and the middle part of the cable passes below the second guide wheel 4. The bottom end of the second guide wheel 4 is connected to the top end of the connector 5. The counterweight device is slidably installed on the outer wall of the guide arm 1. The bottom end of the connector 5 is connected to the counterweight device. The counterweight device is used to provide counterweight for the second guide wheel 4. like Figure 4 As shown, the counterweight device includes a limiting device, a counterweight box 6, a kit 7, a support plate 8, a friction block 9, multiple sets of telescopic rods 10, and multiple sets of springs 11. The counterweight box 6 is connected to the outer wall of the kit 7. The kit 7 is slidably mounted on the outer wall of the guide arm 1. The counterweight box 6 and the kit 7 are provided with through holes. The friction block 9 is mounted on the outer wall of the support plate 8. The fixed ends of the multiple sets of telescopic rods 10 are all mounted on the inner wall of the counterweight box 6, and the moving ends of the multiple sets of telescopic rods 10 are all connected to the outer wall of the support plate 8. The multiple sets of springs 11 are respectively fitted onto the multiple sets of telescopic rods 10. The limiting device is located inside the counterweight box 6 and is used to limit the support plate 8. In this embodiment, when both ends of the cable are under tension, the cable drives the second guide wheel 4 to move upward, thereby causing the second guide wheel 4 to drive the counterweight block to slide upward through the connector 5. When both ends of the cable become loose, the counterweight block provides downward gravity to the second guide wheel 4, thereby causing the second guide wheel 4 to pull the middle of the cable downward, thus making it easier to keep both ends of the cable taut, improving the flexibility and reliability of tension adjustment, and reducing the energy consumption of cable tension adjustment.

[0018] Example 2 Based on Example 1, such as Figure 5 As shown, this utility model provides a cable tensioning device. The limiting device includes a driving device, two sets of rotating shafts 12 and two sets of limiting rods 13. The two sets of rotating shafts 12 are rotatably mounted on the inner side wall of the counterweight box 6. The two sets of limiting rods 13 are respectively mounted on the two sets of rotating shafts 12. The front ends of the two sets of limiting rods 13 hook onto the support plate 8. like Figure 4 As shown, the drive device includes two sets of worm gears 14, worm 15 and motor 16. The two sets of worm gears 14 are respectively installed on the outer side walls of the two sets of rotating shafts 12. The worm 15 is rotatably installed on the inner side wall of the counterweight box 6. The worm 15 meshes with the two sets of worm gears 14. The motor 16 is installed on the inner side wall of the counterweight box 6. The output end of the motor 16 is connected to the worm 15. like Figure 5As shown, it also includes an acceleration sensor 17 and a controller 18, which are respectively installed on the inner side wall of the counterweight box 6; like Figure 5 As shown, it also includes a storage battery 19, which is installed on the inner wall of the counterweight box 6; like Figure 4 As shown, an inspection port is provided on the outer wall of the counterweight box 6; In this embodiment, the position of the support plate 8 is limited by a limiting device, thereby compressing the multiple sets of telescopic rods 10 and multiple sets of springs 11. When the cable breaks and the counterweight box 6 falls, the limiting device stops limiting the support plate 8, thereby causing the multiple sets of springs 11 to push the support plate 8 to move quickly. This causes the friction block 9 to pass through the through holes on the counterweight box 6 and the kit 7 and press against the outer wall of the guide arm 1, thereby decelerating and braking the counterweight box 6, reducing the risk of the counterweight box 6 falling and colliding, and improving the safety of use. The support plate 8 is hooked and limited by two sets of limiting rods 13, thereby maintaining a distance between the friction block 9 and the guide arm 1. The driving device drives two sets of rotating shafts 12 to rotate in opposite directions, causing the two sets of rotating shafts 12 to drive the two sets of limiting rods 13 to swing in opposite directions, thereby separating the two sets of limiting rods 13 from the support plate 8, improving the convenience of braking the counterweight box 6 by the friction block 9.

[0019] This utility model discloses a cable tensioning device. When the two ends of the cable are subjected to tension, the cable drives the second guide wheel 4 to move upward, thereby causing the second guide wheel 4 to drive the counterweight block to slide upward through the connecting piece 5. When the two ends of the cable become loose, the counterweight block provides downward gravity to the second guide wheel 4, thereby causing the second guide wheel 4 to pull the middle of the cable downward, thus making it easy to keep the two ends of the cable in a taut state at all times.

[0020] The motor 16, acceleration sensor 17, controller 18, and battery 19 of the cable tensioning device of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cable tensioning device, comprising a guide arm (1) and a bracket (2), the bracket (2) being mounted on the upper part of the outer side wall of the guide arm (1); characterized in that, It also includes two sets of first guide wheels (3), second guide wheels (4) and connectors (5) for the counterweight device. The two sets of first guide wheels (3) are installed in parallel on the upper part of the outer wall of the bracket (2). The second guide wheel (4) is set between the two sets of first guide wheels (3). The upper part of the cable passes above the two sets of first guide wheels (3) respectively, and the middle part of the cable passes below the second guide wheel (4). The bottom end of the second guide wheel (4) is connected to the top end of the connector (5). The counterweight device is slidably installed on the outer wall of the guide arm (1). The bottom end of the connector (5) is connected to the counterweight device. The counterweight device is used to provide counterweight to the second guide wheel (4).

2. The cable tensioning device as described in claim 1, characterized in that, The counterweight device includes a limiting device, a counterweight box (6), a kit (7), a support plate (8), a friction block (9), multiple sets of telescopic rods (10) and multiple sets of springs (11). The counterweight box (6) is connected to the outer wall of the kit (7). The kit (7) is slidably mounted on the outer wall of the guide arm (1). The counterweight box (6) and the kit (7) are provided with through holes. The friction block (9) is mounted on the outer wall of the support plate (8). The fixed ends of the multiple sets of telescopic rods (10) are all mounted on the inner wall of the counterweight box (6). The moving ends of the multiple sets of telescopic rods (10) are all connected to the outer wall of the support plate (8). The multiple sets of springs (11) are respectively fitted onto the multiple sets of telescopic rods (10). The limiting device is set inside the counterweight box (6) and is used to limit the support plate (8).

3. The cable tensioning device as described in claim 2, characterized in that, The limiting device includes a driving device, two sets of rotating shafts (12) and two sets of limiting rods (13). The two sets of rotating shafts (12) are rotatably installed on the inner side wall of the counterweight box (6). The two sets of limiting rods (13) are respectively installed on the two sets of rotating shafts (12). The front ends of the two sets of limiting rods (13) hook onto the support plate (8).

4. A cable tensioning device as described in claim 3, characterized in that, The drive device includes two sets of worm gears (14), a worm (15) and a motor (16). The two sets of worm gears (14) are respectively installed on the outer side walls of the two sets of rotating shafts (12). The worm (15) is rotatably installed on the inner side wall of the counterweight box (6). The worm (15) meshes with the two sets of worm gears (14). The motor (16) is installed on the inner side wall of the counterweight box (6). The output end of the motor (16) is connected to the worm (15).

5. A cable tensioning device as described in claim 2, characterized in that, It also includes an acceleration sensor (17) and a controller (18), which are respectively installed on the inner wall of the counterweight box (6).

6. A cable tensioning device as described in claim 2, characterized in that, It also includes a storage battery (19), which is installed on the inner wall of the counterweight box (6).

7. A cable tensioning device as described in claim 2, characterized in that, The counterweight box (6) has an inspection port on its outer side wall.

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