Speed-difference self-controller for power transmission maintenance

Abstract

This utility model relates to the field of speed differential controller technology, specifically a speed differential controller for power transmission maintenance. It includes a controller body, a main suspension rope extending from the bottom of the controller, and a Y-shaped branch frame fixedly connected to the bottom of the main suspension rope. A buffer spring is sleeved on the outer side of the end of the main suspension rope, and a safety rope is threaded through the inside of the Y-shaped branch frame. By rotating the locking bolt and the clamping screw counterclockwise, the locking bolt moves downward, causing the lower clamping plate to move slightly downward. The clamping screw drives the clamping protrusion to move outward of the Y-shaped branch frame, thereby loosening the clamped area of ​​the safety rope. Workers can pull one end of the safety rope according to actual usage, allowing the safety rope to move along the gap between the upper and lower clamping plates towards the pulling end, achieving adjustable suspension height at both ends of the safety rope. The Y-shaped branch frame design avoids the problem of the safety rope becoming tangled or knotted at the top, improving ease of use and safety.

Description

Technical Field

[0001] This utility model relates to the field of speed difference automatic controller technology, specifically a speed difference automatic controller for power transmission maintenance. Background Technology

[0002] In power transmission line maintenance, workers frequently move and operate at heights, making fall protection crucial. Traditional differential speed controllers suffer from insufficient cushioning and limited safety rope securing methods. In the event of an accidental fall, the sudden impact can cause injury, and they are difficult to adapt to different safety rope specifications, increasing the risk of rope loosening or slippage. Therefore, there is an urgent need for a differential speed controller with efficient cushioning, flexible safety rope securing height adjustment, and excellent protective performance to meet the increasingly stringent safety requirements of power transmission line maintenance.

[0003] As disclosed in authorization announcement number CN217119169U, a speed differential automatic controller for power transmission maintenance includes a main body. A connecting buckle is fixedly connected to the upper surface of the main body. A housing is disposed above the main body, and a reserved opening is provided on the lower surface of the housing. A buffer mechanism is disposed inside the housing, comprising a first spring, a guide rod, a fixing plate, and a second spring. The guide rod is fixedly connected to the inner bottom of the housing near the left and right edges. The guide rod passes through the fixing plate and is fixedly connected to the inner top of the housing. The upper surface of the fixing plate, located outside the guide rod, is fixedly connected to the first spring, and the lower surface of the fixing plate, located outside the guide rod, is fixedly connected to the second spring. This utility model has a simple structure and reasonable design, effectively addressing the shortcomings of existing technologies.

[0004] While the aforementioned solution effectively slows the descent speed and reduces the instantaneous impact force during descent through the use of a buffer mechanism, the speed-difference automatic controller can only perform single-object suspending functions, making it inconvenient for maintenance personnel to carry and use their toolboxes during high-altitude operations. Therefore, we propose a speed-difference automatic controller for power transmission line maintenance. By employing a Y-shaped branch frame with a locking device to connect the safety rope to the main hoisting rope, and fixing safety hooks at both ends of the safety rope, this solves the problem of the single-function speed-difference automatic controller, improves the convenience of operation for maintenance personnel, and thus increases work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a speed difference automatic controller for power transmission maintenance, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A speed differential automatic controller for power transmission maintenance includes a speed differential controller body, a main hoisting rope extending from the bottom end of the speed differential controller, a Y-shaped branch frame fixedly connected to the bottom end of the main hoisting rope, a buffer spring sleeved on the outer side of the end of the main hoisting rope, a safety rope threaded through the inside of the Y-shaped branch frame, safety hooks fixedly connected to both ends of the safety rope, a rubber protective sleeve provided on the outer side of the buffer spring, and a limit block fixedly connected to the bottom end of the rubber protective sleeve.

[0008] As a further embodiment of this utility model: a limiting block is fixedly installed on the outer side of the end of the main hoisting rope, the bottom end of the buffer spring is fixedly connected to the limiting block, and a movable sleeve is fixedly connected to the top end of the buffer spring, the movable sleeve being sleeved on the outside of the main hoisting rope.

[0009] As a further embodiment of this utility model: a V-shaped connecting block is fixedly installed at the top of the Y-shaped branch frame, the V-shaped connecting block has a connecting hole, the bottom end of the main lifting rope passes through the connecting hole and is firmly fixed by a rope clamp, a locking bolt is threaded through and connected to the included angle position of the Y-shaped branch frame, a lower clamping plate is rotatably connected to the top of the locking bolt, the lower clamping plate has an arc-shaped groove structure in cross section, an upper clamping plate is fixedly installed directly above the lower clamping plate, the top surface of the upper clamping plate is fixedly welded to the inner top surface of the Y-shaped branch frame, and the edges of both ends of the upper clamping plate and the lower clamping plate are designed with rounded corners.

[0010] As a further embodiment of this utility model: the outer walls of both ends of the Y-shaped splitter are threaded with extrusion screws, one end of the extrusion screw extends into the interior of the Y-shaped splitter, and an extrusion protrusion is fixedly provided at that end; rubber friction pads are fixedly provided on the inner walls of both ends of the Y-shaped splitter.

[0011] As a further improvement of this utility model: the safety rope passes through the gap between the upper clamping plate and the lower clamping plate, the top of the speed difference controller body is fixedly provided with a hanging hole, and the opening of the safety hook is sealed by a threaded sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This type of speed-differential automatic controller for power transmission maintenance involves passing a safety rope through a Y-shaped junction box, connecting safety hooks at both ends, and installing locking bolts and clamping screws at the included angle and both ends of the Y-shaped junction box. This allows the safety rope to be fixed inside the Y-shaped junction box, thereby increasing the number of suspension points for the speed-differential automatic controller. When using the controller, maintenance personnel can attach one safety hook to their safety belt and hang the maintenance toolbox on the other hook, facilitating the retrieval and placement of tools during maintenance and improving maintenance efficiency.

[0014] 2. This type of speed differential controller for power transmission maintenance avoids the problem of safety rope tangling and knotting at the top by setting a Y-shaped branch frame, thus improving ease of use and safety.

[0015] 3. This type of speed difference automatic controller for power transmission maintenance has locking bolts and clamping screws installed at the angle and both ends of a Y-shaped branch frame. When it is necessary to adjust the height difference between the two ends of the safety rope, the locking bolts and clamping screws are rotated counterclockwise, causing the locking bolts to move downwards, which in turn causes the lower clamping plate to move slightly downwards. The clamping screws drive the clamping protrusions to move outwards from the Y-shaped branch frame, thereby loosening the clamped area of ​​the safety rope. According to the actual usage, the operator can pull one end of the safety rope to move the safety rope along the gap between the upper and lower clamping plates towards the pulling end, thus achieving the effect of adjusting the hanging height of the two ends of the safety rope.

[0016] 4. This kind of speed differential controller for power transmission maintenance uses a buffer spring sleeved on the outside of the end of the main hoisting rope to absorb the impact force through elastic deformation, avoid the violent rebound of the hoisting rope, reduce the destructive force caused by secondary impact, thereby improving the user experience and extending the service life of the speed differential controller. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a speed differential automatic controller for power transmission maintenance.

[0018] Figure 2 A schematic diagram of a partial structure of a speed differential automatic controller for power transmission maintenance. Figure One ;

[0019] Figure 3 A schematic diagram of a partial structure of a speed differential automatic controller for power transmission maintenance. Figure Two ;

[0020] Figure 4 This is a schematic diagram of the internal structure of a Y-type junction box for a speed differential automatic controller used in power transmission maintenance.

[0021] In the diagram: 1. Speed ​​differential controller body; 2. Main hoisting rope; 3. Y-shaped branch frame; 4. Buffer spring; 5. Safety rope; 6. Safety hook; 7. Limit block; 8. Movable sleeve; 9. Rubber protective sleeve; 10. V-shaped connecting block; 11. Connecting hole; 12. Locking bolt; 13. Lower clamping plate; 14. Upper clamping plate; 15. Extrusion screw; 16. Extrusion protrusion; 17. Rubber friction pad; 18. Hanging hole; 19. Threaded sleeve. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example: A speed difference automatic controller for power transmission maintenance, such as... Figures 1-4 As shown, the device includes a speed differential controller body 1, a main lifting rope 2 extending from the bottom of the speed differential controller, a Y-shaped cable divider 3 fixedly connected to the bottom of the main lifting rope 2, a buffer spring 4 sleeved on the outer side of the end of the main lifting rope 2, a safety rope 5 threaded inside the Y-shaped cable divider 3, safety hooks 6 fixedly connected to both ends of the safety rope 5, a limit block 7 fixedly installed on the outer side of the end of the main lifting rope 2, the bottom of the buffer spring 4 fixedly connected to the limit block 7, a movable sleeve 8 fixedly connected to the top of the buffer spring 4, the movable sleeve 8 sleeved on the outside of the main lifting rope 2, a rubber protective sleeve 9 provided on the outside of the buffer spring 4, the bottom of the rubber protective sleeve 9 fixedly connected to the limit block 7, a V-shaped connecting block 10 fixedly installed at the top of the Y-shaped cable divider 3, the V-shaped connecting block 10 having a connecting hole 11, the bottom of the main lifting rope 2 passing through the connecting hole 11 and securely fixed with a rope clamp, and the Y-shaped cable divider 3 clamping... A locking bolt 12 is threaded through and connected at the corner position. A lower clamping plate 13 is rotatably connected to the top of the locking bolt 12. The lower clamping plate 13 has an arc-shaped groove structure in its cross section. An upper clamping plate 14 is fixedly installed directly above the lower clamping plate 13. The top surface of the upper clamping plate 14 is fixedly welded to the inner top surface of the Y-shaped cable divider 3. The edges of both ends of the upper clamping plate 14 and the lower clamping plate 13 are rounded. The outer walls of both ends of the Y-shaped cable divider 3 are threadedly connected to the extrusion screw 15. One end of the extrusion screw 15 extends into the interior of the Y-shaped cable divider 3, and an extrusion protrusion 16 is fixedly installed at this end. Rubber friction pads 17 are fixedly installed on the inner walls of both ends of the Y-shaped cable divider 3. The safety rope 5 passes through the gap between the upper clamping plate 14 and the lower clamping plate 13. A hanging hole 18 is fixedly installed at the top of the speed difference controller body 1. The opening of the safety hook 6 is sealed by a threaded sleeve 19.

[0025] In this embodiment, by using the locking bolts 12 and the compression screws 15 located at the included angle and both ends of the Y-shaped cable divider 3, when it is necessary to adjust the hanging height difference of the safety rope 5, first rotate the compression screw 15 counterclockwise. The compression screw 15 drives the compression protrusion 16 to move outward from the Y-shaped cable divider 3. Then, rotate the locking bolts 12 and the compression screws 15 counterclockwise, causing the locking bolts 12 to move downward, causing the lower clamping plate 13 to move slightly downward, thereby loosening the clamped area of ​​the safety rope 5. The operator can then pull one end of the safety rope 5 according to the actual usage situation, so that the safety rope 5 moves along the upper clamping plate 13. The gap between the upper clamping plate 14 and the lower clamping plate 13 moves towards the pulling end, thereby adjusting the hanging height of both ends of the safety rope 5. After the safety rope 5 is adjusted, first turn the locking bolt 12 clockwise, then turn the pressing screw 15 clockwise. The locking bolt 12 drives the lower clamping plate 13 to move upward, thereby reducing the gap between the upper clamping plate 14 and the lower clamping plate 13. The pressing screw 15 drives the pressing protrusion 16 to move towards the surface of the safety rope 5 until the safety rope 5 is tightly pressed against one side of the rubber friction pad 17, thus achieving a double locking effect of the safety rope 5 and preventing the safety rope 5 from slipping during use.

[0026] In this embodiment, a speed differential automatic controller for power transmission maintenance is used by first rotating the locking bolt 12 and the clamping screw 15 counterclockwise. This causes the locking bolt 12 to move downwards, which in turn causes the lower clamping plate 13 to move slightly downwards. The clamping screw 15 then causes the clamping protrusion 16 to move outwards from the Y-shaped branch frame 3, thereby loosening the clamped area of ​​the safety rope 5. Workers can then pull one end of the safety rope 5 according to the actual usage situation, allowing the safety rope 5 to move along the gap between the upper clamping plate 14 and the lower clamping plate 13 towards the pulling end. This achieves the effect of adjusting the hanging height of both ends of the safety rope 5. In actual use, workers can flexibly adjust the hanging height of toolboxes of different sizes, making it easier to retrieve and place tools according to their own habits during maintenance work, thus improving maintenance efficiency. Furthermore, the Y-shaped branch frame 3 prevents the safety rope 5 from getting tangled or knotted at the top, improving ease of use and safety. After the safety rope 5 is adjusted, turn the locking bolt 12 and the clamping screw 15 clockwise. The locking bolt 12 moves the lower clamping plate 13 upward, thereby reducing the gap between the upper clamping plate 14 and the lower clamping plate 13. The clamping screw 15 moves the clamping protrusion 16 towards the surface of the safety rope 5 until the safety rope 5 is tightly pressed against the rubber friction pad 17. This achieves a double locking effect on the safety rope 5, preventing slippage during use and ensuring normal operation. When the main hoisting rope 2 is retracted, the buffer spring 4 sleeved on the outer side of the end of the main hoisting rope 2 absorbs the impact force through elastic deformation, preventing violent rebound of the rope and reducing the destructive force caused by secondary impacts. This improves the user experience and extends the service life of the speed difference controller.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A speed differential automatic controller for power transmission maintenance, comprising a speed differential automatic controller body (1), characterized in that: The bottom end of the speed differential controller has a main hoisting rope (2), the bottom end of the main hoisting rope (2) is fixedly connected to a Y-shaped cable divider (3), a buffer spring (4) is sleeved on the outer side of the end of the main hoisting rope (2), a safety rope (5) is threaded through the inside of the Y-shaped cable divider (3), and safety hooks (6) are fixedly connected to both ends of the safety rope (5).

2. The speed difference automatic controller for power transmission maintenance according to claim 1, characterized in that: A limiting block (7) is fixedly installed on the outer side of the end of the main hoisting rope (2). The bottom end of the buffer spring (4) is fixedly connected to the limiting block (7). A movable sleeve (8) is fixedly connected to the top end of the buffer spring (4). The movable sleeve (8) is sleeved on the outside of the main hoisting rope (2).

3. The speed difference automatic controller for power transmission maintenance according to claim 1, characterized in that: A rubber protective sleeve (9) is provided on the outside of the buffer spring (4), and the bottom end of the rubber protective sleeve (9) is fixedly connected to the limiting block (7).

4. The speed difference automatic controller for power transmission maintenance according to claim 1, characterized in that: The top of the Y-shaped cable tray (3) is fixedly provided with a V-shaped connecting block (10), and the V-shaped connecting block (10) has a connecting hole (11). The bottom end of the main hoisting rope (2) passes through the connecting hole (11) and is fixed firmly with a rope clamp.

5. A speed differential automatic controller for power transmission maintenance according to claim 1, characterized in that: The Y-shaped branch frame (3) has a locking bolt (12) threaded through and connected at the included angle. The top of the locking bolt (12) is rotatably connected to a lower clamping piece (13), and the lower clamping piece (13) has an arc-shaped groove structure in its cross section.

6. A speed differential automatic controller for power transmission maintenance according to claim 5, characterized in that: An upper clamping piece (14) is fixedly installed directly above the lower clamping piece (13). The top surface of the upper clamping piece (14) is fixedly welded to the inner top surface of the Y-shaped splitter frame (3). The edges of both ends of the upper clamping piece (14) and the lower clamping piece (13) are designed with rounded corners.

7. A speed differential automatic controller for power transmission maintenance according to claim 1, characterized in that: The Y-shaped splitter (3) has a screw threaded connection to the outer wall of both ends. One end of the screw thread (15) extends into the interior of the Y-shaped splitter (3) and is fixedly provided with a screw protrusion (16). Rubber friction pads (17) are fixedly provided on the inner wall of both ends of the Y-shaped splitter (3).

8. A speed differential automatic controller for power transmission maintenance according to claim 1, characterized in that: The safety rope (5) passes through the gap between the upper clamping plate (14) and the lower clamping plate (13). The top of the speed difference controller body (1) is fixedly provided with a hanging hole (18). The opening of the safety hook (6) is sealed by a threaded sleeve (19).

Images