An improved insulator replacement device

Abstract

This utility model relates to the technical field of insulator replacement devices, specifically disclosing an improved insulator replacement device, including two sets of clamp assemblies. Each clamp assembly has an external lead screw adjustment assembly for driving the two clamp assemblies closer to or further apart. A distance adjustment assembly is also provided between the lead screw adjustment assembly and the clamp assemblies for adjusting the distance between them. After clamping, the distance between the lead screw adjustment assembly and the clamp assemblies can be adjusted via the distance adjustment assembly, adapting to different working conditions and meeting the maintenance needs of complex transmission line environments.

Description

Technical Field

[0001] This utility model relates to the technical field of insulator replacement devices, and in particular to an improved insulator replacement device. Background Technology

[0002] In power transmission line systems, insulators are the core components ensuring insulation between conductors and towers. They are subjected to conductor tension, wind and rain erosion, and temperature changes over long periods, making them prone to aging, damage, or contamination. This leads to decreased insulation performance and can even cause safety accidents such as short circuits and power outages. Therefore, regularly replacing damaged insulators is a crucial part of transmission line maintenance. Insulator replacement devices, as specialized tools, can temporarily fix adjacent insulator strings during replacement, bearing conductor tension, preventing conductors from falling, ensuring construction safety, and providing workers with a stable operating space. They are key equipment for improving replacement efficiency and reducing operational risks.

[0003] However, existing insulator replacement devices have significant limitations. Traditional devices typically have fixed-spacing adjusting rods, making it impossible to adjust them according to the actual size and gaps of the insulator strings. In actual operation, the spacing between insulator strings of different models and specifications varies, and the insulators on the towers are densely packed. Fixed-spacing adjusting rods are prone to collisions or interference with adjacent insulators and tower components, leading to difficulties in installation or operation. For example, when the gaps between insulator strings are small, fixed-spacing adjusting rods may not be able to rotate due to insufficient space, forcing workers to spend extra time adjusting the device's position, or even disassembling some components. This not only reduces replacement efficiency but also increases the safety risks of working at height. This inability to adjust the rod spacing makes the device poorly adaptable to different operating conditions, making it difficult to meet the maintenance needs of complex transmission line environments. Utility Model Content

[0004] To address the technical problem that the spacing of the adjusting screws in existing devices is mostly fixed and cannot be adjusted according to the actual size and gap of the insulator string, this utility model provides an improved insulator replacement device.

[0005] The technical solution adopted by this utility model is: an improved insulator replacement device, including two sets of clamp assemblies, and a screw adjustment assembly is provided on the outside of the clamp assembly. The screw adjustment assembly is used to drive the two sets of clamp assemblies to move closer or further apart. A distance adjustment assembly is also provided between the screw adjustment assembly and the clamp assembly, and the distance adjustment assembly is used to adjust the distance between the screw adjustment assembly and the clamp assembly.

[0006] The present invention is further configured such that the clamp assembly includes a first clamp and a second clamp, both ends of the first clamp are fixedly connected to a fixing plate, both ends of the second clamp are provided with positioning grooves, the top of the fixing plate is fixedly connected to a screw, and the screw passes through the positioning groove and is threadedly connected to a nut.

[0007] A further feature of this invention is that the lead screw adjustment assembly includes two sets of adjustment lead screws and threaded tubes threaded to both ends of the adjustment lead screws, and a ratchet wrench is installed on the outside of the adjustment lead screw.

[0008] A further feature of this invention is that mounting seats are provided on both sides of the first clamp, and a sliding plate is fixedly connected to the outside of the mounting seats.

[0009] A further feature of this invention is that the distance adjustment assembly includes a threaded post fixedly connected to the top of the slide plate and a nut threadedly connected to the outside of the threaded post. The outside of the fixed plate is provided with a sliding opening, through which the threaded post passes.

[0010] A further feature of this invention is that a slip ring is fitted around the outside of the threaded column, and positioning blocks are fixedly connected to both sides of the bottom of the slip ring. The top of the fixing plate is provided with multiple sets of positioning holes.

[0011] A further feature of this invention is that the threaded tube is hinged to the mounting base.

[0012] The beneficial effects of this utility model are: In this utility model, after clamping by the clamping assembly, the distance between the screw adjusting assembly and the clamping assembly can be adjusted by the distance adjusting assembly, which can adapt to different working conditions and meet the maintenance needs of complex power transmission line environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the screw adjustment assembly in this utility model;

[0015] Figure 3 yes Figure 2 Enlarged structural diagram of region A in the middle;

[0016] Figure 4 This is a schematic diagram of the bottom structure of the adjusting screw and threaded tube in this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the adjusting screw and threaded tube in this utility model;

[0018] Figure 6 yes Figure 5 A magnified structural diagram of region B in the middle;

[0019] Figure 7 This is a schematic diagram of the nut structure in this utility model.

[0020] The diagram is marked as follows:

[0021] 1. Adjusting screw; 2. Ratchet wrench; 3. Threaded tube; 4. First clamp; 5. Second clamp; 6. Fixing plate; 7. Slide joint; 8. Positioning hole; 9. Threaded post; 10. Nut; 11. Slip ring; 12. Mounting base; 13. Slide plate; 14. Positioning block; 15. Positioning groove; 16. Screw; 17. Nut. Detailed Implementation

[0022] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", 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.

[0023] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described below.

[0024] To address the problems existing in the background technology, this application proposes the following technical solution: an improved insulator replacement device, comprising two sets of clamp assemblies, with a screw adjusting assembly externally for each clamp assembly. The screw adjusting assembly drives the two sets of clamp assemblies to move closer or further apart. A distance adjusting assembly is also provided between the screw adjusting assembly and the clamp assemblies to adjust the distance between the screw adjusting assembly and the clamp assemblies. In transmission line maintenance, insulators are exposed outdoors for extended periods, making them susceptible to aging and damage that could affect line safety. When replacing insulators, a special device is needed to secure adjacent insulator strings to prevent conductors from falling. The two sets of clamp assemblies in this device can be respectively clamped onto adjacent insulators on both sides of the insulator to be replaced, forming a stable support. The screw adjusting assembly, by driving the two sets of clamp assemblies closer or further apart, can loosen or tighten the insulator strings—bringing the assemblies closer together during replacement reduces the stress on the insulator to be replaced, facilitating disassembly; moving the assemblies further apart after installation restores the tension of the insulator strings, ensuring line stability.

[0025] The distance adjustment component flexibly adjusts the distance between the screw adjustment component and the clamp component to accommodate insulator strings of different models and sizes. Because insulator strings vary in length and spacing, a fixed spacing could cause the adjustment component to collide with the insulator, affecting operation. Fine-tuning the distance adjustment component avoids insulator obstacles, ensuring smooth operation of the screw adjustment component. This dual-adjustment structure combines the advantages of fixed support and flexible adaptation, ensuring safety during replacement, improving the device's adaptability to different working conditions, reducing operational difficulties caused by equipment incompatibility, and increasing the efficiency of insulator replacement.

[0026] In this embodiment, the clamp assembly includes a first clamp 4 and a second clamp 5. Both ends of the first clamp 4 are fixedly connected to a fixing plate 6, and both ends of the second clamp 5 are provided with positioning grooves 15. A screw 16 is fixedly connected to the top of the fixing plate 6, and the screw 16 passes through the positioning groove 15 and is threadedly connected to a nut 17. The first clamp 4 and the second clamp 5 of the clamp assembly adopt a split design, which facilitates insertion into the gap between adjacent insulators. The fixing plates 6 at both ends of the first clamp 4 cooperate with the positioning grooves 15 of the second clamp 5 to form a ring-shaped fixing structure, which can tightly fit the outer contour of the insulator and prevent slippage. After the screw 16 on the fixing plate 6 passes through the positioning groove 15 of the second clamp 5, it is locked by tightening the nut 17. The operation is simple and the fixation is firm, and installation can be completed without complicated tools.

[0027] The positioning groove 15 provides the screw 16 with a certain adjustment range, accommodating slight differences in insulator diameter and ensuring a tight fit between the clamp assembly and the insulator. The threaded connection between the nut 17 and the screw 16 is self-locking, maintaining a tight fit even under vibration and preventing the clamp from loosening and causing device failure. This clamp structure ensures both stable clamping of the insulator and ease of installation, while also being adaptable to insulators of different specifications, laying a reliable foundation for subsequent adjustment operations.

[0028] In this embodiment, the screw adjustment assembly includes two sets of adjusting screws 1 and threaded tubes 3 threadedly connected to both ends of the adjusting screws 1. A ratchet wrench 2 is mounted on the outside of the adjusting screws 1. Mounting seats 12 are provided on both sides of the first clamp 4. A sliding plate 13 is fixedly connected to the outside of the mounting seats 12, and the threaded tubes 3 are hinged to the mounting seats 12. The two sets of adjusting screws 1 and the threaded tubes 3 at both ends form a telescopic structure. By rotating the adjusting screws 1, the threaded tubes 3 move in opposite directions, allowing the two sets of clamp assemblies to move closer or further apart. The ratchet wrench 2 on the outside of the adjusting screws 1 allows the worker to rotate the adjusting screws 1 in one direction, saving effort and allowing for precise control of the adjustment amount, avoiding excessive loosening of the insulator string due to excessive force during operation. In the field of spacer insulators, the structure technology of the ratchet wrench 2 driving the adjusting screws 1 to rotate is existing technology, therefore its principle is not described in detail in this paper.

[0029] The mounting seats 12 on both sides of the first clamp 4 provide connection points for the threaded tube 3. The sliding plate 13 on the outside of the mounting seat 12 can drive the mounting seat 12 to slide, adjusting the relative position of the adjusting screw 1 and the clamp assembly. The hinged design of the threaded tube 3 and the mounting seat 12 allows for a certain angular deviation between them, avoiding rigid torsion of the adjusting screw 1 under force and extending the service life of the assembly. This structure makes the adjustment process flexible and smooth, and can accurately control the tightness of the insulator string, making it easy for workers to safely and efficiently complete the replacement of insulators.

[0030] In this embodiment, the distance adjustment assembly includes a threaded post 9 fixedly connected to the top of the slide plate 13 and a nut 10 threadedly connected to the outside of the threaded post 9. The outside of the fixing plate 6 is provided with a sliding opening 7, through which the threaded post 9 passes. A slip ring 11 is fitted around the outside of the threaded post 9, and positioning blocks 14 are fixedly connected to both sides of the bottom of the slip ring 11. The top of the fixing plate 6 is provided with multiple sets of positioning holes 8. The threaded post 9 of the distance adjustment assembly is fixed to the top of the slide plate 13. After passing through the sliding opening 7 of the fixing plate 6, the position of the slide plate 13 can be locked by tightening the nut 10. The sliding opening 7 provides a sliding channel for the threaded post 9, allowing the slide plate 13 to move the mounting base 12 to adjust its position, changing the distance between the screw adjustment assembly and the clamp assembly, and avoiding obstacles such as insulators. The slip ring 11 outside the threaded post 9 cooperates with the positioning holes 8 of the fixing plate 6 through the bottom positioning blocks 14 to further fix the slide plate 13 and prevent positional shift after adjustment.

[0031] The multiple sets of positioning holes 8 allow the slip ring 11 to be fixed in different positions as needed, enhancing adjustment flexibility. When the nut 10 is tightened, it abuts against the slip ring 11, firmly fixing the slip ring 11 to the fixing plate 6, ensuring that the slide plate 13 does not move under force. This double fixing structure ensures both stable position after adjustment and facilitates quick adjustment, ensuring that the operating space of the screw adjustment assembly is not obstructed by the insulator, ensuring smooth rotation of the ratchet wrench 2, and improving the convenience and safety of replacement operations.

[0032] The usage method of this embodiment is as follows:

[0033] Workers carry the equipment to the transmission line tower, separate the first clamp 4 and the second clamp 5, and let the first clamp 4 and the second clamp 5 be engaged in the gap between two adjacent insulators. Then, the first clamp 4 and the second clamp 5 are fixed by connecting the nut 17 and the screw 16.

[0034] Next, adjust the sliding plate 13 to adjust the distance between the two adjusting screws 1, and then insert the positioning block 14 into the positioning groove 15. Rotate the nut 10, and the nut 10 will abut against the slip ring 11 to fix the slip ring 11. In this way, the position of the mounting base 12 can be fixed.

[0035] The worker can simultaneously turn two ratchet wrenches 2 to drive the adjusting screw 1 to rotate. The adjusting screw 1 drives the two sets of threaded tubes 3 to slide in opposite directions, thereby loosening the insulator strings between the clamp components, and then the insulators can be replaced.

[0036] Therefore, in this embodiment, the distance between the two sets of adjusting screws 1 can be adjusted so that the rotation of the ratchet wrench 2 will not touch the insulator, making it convenient to adjust the rotation of the screw 1.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. An improved insulator replacement device, characterized by, It includes two sets of clamp assemblies. The clamp assemblies are provided with a screw adjustment assembly on the outside. The screw adjustment assembly is used to drive the two sets of clamp assemblies to move closer or further apart. A distance adjustment assembly is also provided between the screw adjustment assembly and the clamp assemblies. The distance adjustment assembly is used to adjust the distance between the screw adjustment assembly and the clamp assemblies.

2. An improved insulator replacement device according to claim 1, wherein, The clamp assembly includes a first clamp (4) and a second clamp (5). Both ends of the first clamp (4) are fixedly connected to a fixing plate (6). Both ends of the second clamp (5) are provided with positioning grooves (15). The top of the fixing plate (6) is fixedly connected to a screw (16). The screw (16) passes through the positioning groove (15) and is threadedly connected to a nut (17).

3. An improved insulator replacement device according to claim 2, wherein, The lead screw adjustment assembly includes two sets of adjustment lead screws (1) and threaded tubes (3) threaded to both ends of the adjustment lead screws (1). A ratchet wrench (2) is installed on the outside of the adjustment lead screws (1).

4. An improved insulator replacement device according to claim 3, wherein, The first clamp (4) is provided with mounting seats (12) on both sides, and the mounting seats (12) are fixedly connected to the outside of the sliding plate (13).

5. An improved insulator replacement device according to claim 4, wherein, The distance adjustment assembly includes a threaded post (9) fixedly connected to the top of the slide plate (13) and a nut (10) threadedly connected to the outside of the threaded post (9). The outside of the fixed plate (6) is provided with a sliding opening (7), and the threaded post (9) passes through the sliding opening (7).

6. An improved insulator replacement device according to claim 5, wherein, The threaded column (9) is fitted with a slip ring (11), and positioning blocks (14) are fixedly connected to both sides of the bottom of the slip ring (11). The top of the fixing plate (6) is provided with multiple sets of positioning holes (8).

7. The improved insulator replacement device of claim 3, wherein, The threaded tube (3) is hinged to the mounting base (12).

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