Novel power transmission line V-string insulator replacement tool

Abstract

The utility model provides a novel power transmission line V-string insulator replacement tool, which relates to the technical field of electric power overhaul tools and comprises a main body, an adjustable pulley yoke, a limiting bolt, a connecting bolt and a yoke plate bolt. A straight groove is formed in the main body and used for being clamped on a suspension yoke plate, and the main body is fixed to the suspension yoke plate through yoke plate bolts on the two sides; the other end of the straight groove is located on the main body and provided with an adjustable pulley yoke, and the adjustable pulley yoke is fixed to the main body through a connecting bolt. The two sets of limiting bolts are symmetrically arranged on the two sides of the adjustable pulley yoke and are sequentially connected with the adjustable pulley yoke and the suspension yoke plate. Through the optimized design, the overall weight of the replacement tool is reduced, and the replacement tool is easier to carry and operate; the design of the adjustable pulley yoke and the limiting bolt enables the tool to accurately adjust and fix the positions of the yoke plate and the lead, avoids the problem that the yoke plate is inclined or the lead is inclined, and guarantees the smooth replacement process of the insulator.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance tools, and in particular to a novel tool for replacing V-string insulators in transmission lines. Background Technology

[0002] Since most of my country's high-voltage transmission lines are overhead lines, they are exposed to the outdoor environment for long periods of time, and are affected by natural environmental factors such as scorching sun, rain, snow, lightning strikes, and frost, making insulators prone to damage. Insulators are an important component of ultra-high-voltage overhead transmission lines. Under the long-term effects of electromechanical loads and various climatic environments, insulators deteriorate to zero-value or low-value insulators. To ensure equipment safety, zero-value insulators must be replaced in a timely manner. In recent years, the replacement of low-value insulators has become one of the main tasks of line maintenance, and the replacement of insulators requires the corresponding auxiliary tools.

[0003] Currently, replacing V-string insulators often involves using two four-wire lifting devices to hook the conductor, connecting it with a lead screw, pull bar, and crossarm angle steel. The connection plate and conductor are loosened by simultaneously tightening the four-wire lifting devices on both sides of the connection plate before replacement. Alternatively, steel wire sleeves and high-strength slings can be used to bind the conductor connection plate. Or, matching clamps can be used to loosen the conductor and replace it by fixing the connection plate and lifting it at an angle.

[0004] The first replacement method mentioned above uses excessively heavy tools, which is not conducive to working at heights. When tightening the screw, two people are required to operate on both sides of the connecting plate, which is time-consuming, laborious, and can easily cause the connecting plate to tilt, making it impossible to remove the insulator.

[0005] The second replacement method is difficult to tie properly during the binding process. If you are not careful, it will hinder the insulator removal and installation work, or even make it impossible to remove. Secondly, after the insulator is tied properly and the load of the conductor is transferred to the tool, the conductor will inevitably be crooked when the insulator is removed. Once the conductor is crooked, it is difficult to reset the new insulator.

[0006] The third replacement method involves adjusting the angle between the connecting plate and the crossarm during the replacement process, requiring multiple protection measures. Additionally, the crossarm end also needs to be equipped with a corresponding special clamp for replacement.

[0007] These problems pose significant challenges and risks to the replacement work, requiring substantial manpower and resources, and are time-consuming and labor-intensive. Furthermore, neither of the two replacement methods mentioned above allows for the direct lowering of the replaced insulators from a height to the ground, necessitating the use of auxiliary tools. Therefore, we propose a novel tool for replacing V-string insulators in transmission lines. Utility Model Content

[0008] The purpose of this utility model is to solve the shortcomings of the existing technology, such as the large weight of the replacement tool, which makes it difficult to carry and transport. It also solves the problems of misalignment of the connecting plate and wire during replacement, difficulty in replacing insulators, difficulty in resetting the new insulator after replacement, inability to directly lower the replaced failed insulator to the ground, and inability to directly reach the work position when replacing newly installed insulators.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A novel tool for replacing V-string insulators in transmission lines comprises a main body, an adjustable pulley frame, limit bolts, connecting bolts, and connecting plate bolts.

[0011] The main body has a straight groove for mounting on the suspension connecting plate, and the main body is fixed to the suspension connecting plate by connecting plate bolts on both sides;

[0012] The other end of the straight groove is equipped with an adjustable pulley frame on the main body, and the adjustable pulley frame is fixed to the main body by connecting bolts;

[0013] The limiting bolts are provided in two sets, symmetrically located on both sides of the adjustable pulley frame, and are sequentially connected to the adjustable pulley frame and the suspension plate.

[0014] Furthermore, adjustable pulley bracket mounting holes are provided on both sides of the main body, and two sets of connecting bolts are connected to the adjustable pulley bracket and the main body through the adjustable pulley bracket mounting holes.

[0015] Furthermore, the adjustable pulley frame has a row of pulley mounting holes for mounting trolleys.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Through optimized design, this utility model reduces the overall weight of the tool replacement, making it easier to carry and operate. Especially in high-altitude working environments, it greatly reduces the burden on workers and improves work efficiency.

[0018] 2. The design of the adjustable pulley frame and limit bolts allows the tool to precisely adjust and fix the position of the connecting plate and the conductor, avoiding the problem of the connecting plate or the conductor being skewed, thus ensuring the smooth progress of the insulator replacement process.

[0019] 3. This tool can not only keep the connecting plate and conductor in the correct position when replacing insulators, but also directly lower the failed insulator and directly lift the new insulator into place through the pulley system. This function greatly simplifies the operation process and avoids the need to use other auxiliary tools.

[0020] 4. Because this utility model can accurately adjust and fix the position of the connecting plate and the wire, it avoids safety hazards caused by improper positioning. At the same time, the lightweight design and simplified operation process also help to reduce the fatigue and tension of the operators, and further improve the safety of the operation.

[0021] 5. This tool is suitable for replacing V-string insulators of various models without requiring special design or modification for different models of insulators, thus improving the tool's versatility and practicality. Attached Figure Description

[0022] Figure 1 A front view schematic diagram of the overall structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0023] Figure 2 A side view of the overall structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0024] Figure 3 A front view schematic diagram of an adjustable pulley frame structure for a novel tool for replacing V-string insulators in transmission lines, provided by this utility model;

[0025] Figure 4 A side view of the adjustable pulley frame structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0026] Figure 5 A main schematic diagram of the main structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0027] Figure 6 A side view of the main structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0028] Figure 7 A schematic diagram of the limiting bolt structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0029] Figure 8 A schematic diagram of the connecting bolt structure of a novel tool for replacing V-string insulators in transmission lines provided by this utility model;

[0030] Figure 9 The schematic diagram of the connecting plate bolt structure is provided by this utility model for a novel tool for replacing V-string insulators in transmission lines.

[0031] Legend: 1. Main body; 11. Straight groove; 12. Adjustable pulley bracket mounting hole;

[0032] 2. Adjustable pulley bracket; 21. Pulley mounting holes;

[0033] 3. Limit bolts;

[0034] 4. Connecting bolts;

[0035] 5. Connecting plate bolts. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] like Figure 1-9 As shown, this utility model provides a technical solution: a new type of V-string insulator replacement tool for transmission lines, comprising a main body 1, an adjustable pulley frame 2, a limiting bolt 3, a connecting bolt 4, and a connecting plate bolt 5, wherein the main body 1 is made of aerospace super hard aluminum alloy.

[0041] The main body 1 has a straight groove 11 for mounting on the suspension connecting plate (fitting plate). The main body 1 is fixed to the suspension connecting plate by connecting plate bolts 5 on both sides.

[0042] The other end of the straight groove 11 is equipped with an adjustable pulley frame 2 on the main body 1. The adjustable pulley frame 2 is fixed to the main body 1 by connecting bolts 4 and is used to lift and lower the insulator. The whole set of tools is lightweight, has comprehensive functions, and ensures work efficiency and safety.

[0043] Two sets of limit bolts 3 are provided, symmetrically located on both sides of the adjustable pulley frame 2, and are connected to the adjustable pulley frame 2 and the suspension plate in sequence. By screwing the limit bolts 3 into the adjustable pulley frame 2, they are pressed against the suspension plate to adjust the angle of the suspension plate, prevent tilting, and control the suspension plate.

[0044] The main body 1 has adjustable pulley frame mounting holes 12 on both sides, and two sets of connecting bolts 4 connect the adjustable pulley frame 2 and the main body 1 through the adjustable pulley frame mounting holes 12.

[0045] The adjustable pulley frame 2 has a row of pulley mounting holes 21, which can be selected to install the trolley in a suitable position, allowing the operator to flexibly choose the position when using it and increase efficiency.

[0046] Furthermore, since this new replacement tool adopts a split structure, it can be equipped with an adjustable pulley frame 2 or not, allowing maintenance personnel to choose freely and increasing the tool's versatility.

[0047] It should be added that no special matching clamps need to be installed on the crossarm end during use; only two connectors are required, which can significantly save costs.

[0048] The working process of this utility model is as follows: First, connect the adjustable pulley frame 2 to the main body 1 using connecting bolts 4. Install the main body 1 into the connecting plate using the slot and connect it with the connecting plate bolts 5. Connect the two sides of the clamp with screws, pull bars and crossarm angle steel. Pre-tighten the connecting plate. When the entire clamp is slightly stressed, adjust the limit bolts 3 on the main body 1 to tighten the connecting plate and ensure that the connecting plate remains vertical. Continue to tighten the screws until the entire connecting plate and the conductor are completely relaxed. At this time, install pulleys at the appropriate height of the adjustable pulley frame 2, remove the failed insulator, and use the pulleys and ropes to slowly release the replaced insulator to the ground. Then, hoist the new insulator up, install it in the required position, loosen the screws, remove the clamp, and complete one replacement operation.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel transmission line V-string insulator replacement tool characterized by: It consists of a main body (1), an adjustable pulley frame (2), a limiting bolt (3), a connecting bolt (4), and a connecting plate bolt (5); The main body (1) is provided with a straight groove (11) for mounting on the suspension connecting plate. The main body (1) is fixed to the suspension connecting plate by connecting plate bolts (5) on both sides. The other end of the straight groove (11) is mounted on the main body (1) with an adjustable pulley frame (2), which is fixed to the main body (1) by connecting bolts (4); The limiting bolts (3) are provided in two sets, symmetrically located on both sides of the adjustable pulley frame (2), and are connected to the adjustable pulley frame (2) and the suspension plate in sequence.

2. A new type of transmission line V-string insulator replacement tool according to claim 1, characterized in that: The main body (1) has adjustable pulley frame mounting holes (12) on both sides, and the connecting bolts (4) have two sets that connect the adjustable pulley frame (2) and the main body (1) through the adjustable pulley frame mounting holes (12).

3. A new type of transmission line V-string insulator replacement tool according to claim 1, characterized in that: The adjustable pulley frame (2) has a row of pulley mounting holes (21) for mounting trolleys.

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