Auxiliary arc extinguishing device for quickly hanging grounding wire

Abstract

The utility model relates to the technical field of power transmission line maintenance, in particular to an auxiliary arc extinction device for quickly hanging a ground wire, and can solve the problems that a traditional ground wire hanging mode wastes time and labor, is relatively high in risk, has certain potential safety hazards and cannot meet the requirement of power failure maintenance of an extra-high voltage line to a certain extent. The auxiliary arc extinguishing device for quickly hanging the grounding wire comprises an insulating rod, a sliding block and a hanging mechanism, a first connecting hole and a second connecting hole are formed in the two ends of the insulating rod respectively, a wire hook is installed through the second connecting hole, and the wire hook is used for hanging a wire; a sliding rail is further arranged on the insulating rod, the sliding block is connected with the insulating rod through the sliding rail, and the hanging mechanism is installed on the side, close to the wire hook, of the sliding block.

Description

Technical Field

[0001] This application relates to the field of power transmission line maintenance technology, and more specifically, to an auxiliary arc-extinguishing device for rapid installation of grounding wires. Background Technology

[0002] With the rapid development of the national economy in recent years, ultra-high voltage and extra-high voltage transmission lines have become an important part of the domestic power system. Extra-high voltage transmission lines are an important strategic channel for energy complementarity between inter-regional power grids, characterized by long transmission channels and large operating loads.

[0003] During power outage maintenance, the first task for maintenance personnel is to de-energize, test for voltage, and install grounding wires. Two problems were discovered during the installation process: First, power outages on long-distance transmission lines, especially single-circuit or single-pole outages on ultra-high-voltage lines, can generate discharge arcs up to 2 meters long. These arcs can burn or even break the insulation ropes and damage the conductors, forcing the installation process to be restarted. This poses a significant challenge to workers operating at heights. Second, ultra-high-voltage transmission lines have high insulation and long fittings, with live conductors at least 10 meters from the towers. Traditional grounding wire installation relies on only a single thin insulated control rope, making the installation process like "threading a needle," often taking nearly half an hour.

[0004] Therefore, the traditional method of installing grounding wires is time-consuming, labor-intensive, and highly dangerous, posing certain safety hazards and failing to meet the needs of power outage maintenance of ultra-high voltage lines. In order to improve the speed and safety of grounding wire installation, it is urgent to design a more convenient auxiliary device for grounding wire installation. Utility Model Content

[0005] To address the problems of traditional grounding wire installation methods being time-consuming, labor-intensive, highly dangerous, posing certain safety hazards, and failing to meet the needs of power outage maintenance for ultra-high voltage lines, this application provides an auxiliary arc-extinguishing device for rapid grounding wire installation.

[0006] The embodiments of this application are implemented as follows:

[0007] In one aspect, this application provides an auxiliary arc-extinguishing device for rapid installation of grounding wires, including an insulating rod, a sliding block, and an installation mechanism;

[0008] The insulating rod has a first connecting hole and a second connecting hole at both ends, and a wire hook is installed through the second connecting hole. The wire hook is used to hang the wire.

[0009] A sliding track is also provided on the insulating rod, and the slider is connected to the insulating rod through the sliding track. The hanging mechanism is installed on the side of the slider near the wire hook.

[0010] In a possible implementation, the hanging mechanism comprises a duckbill impact type wire clamp, a "gan" type protrusion is arranged on the sliding block, a groove matching the "gan" type protrusion is arranged at the tail of the duckbill impact type wire clamp, and the duckbill clamp is vertically and stably fixed on the sliding block through the clamping force of the tail clamp when the duckbill clamp is opened.

[0011] In a possible implementation, the insulating rod is connected with an insulating plate control rope through the first connecting hole.

[0012] In a possible implementation, the wire hook is an aluminum alloy plate hook, and the wire hook is fixedly connected with the insulating rod through a bolt.

[0013] In a possible implementation, the hook side of the wire hook is turned outward, so as to be conveniently hung on the wire.

[0014] In a possible implementation, a third connecting hole and a fourth connecting hole are arranged at the tail of the duckbill impact type wire clamp, the third connecting hole is used for connecting a grounding wire control rope, and the fourth connecting hole is used for connecting a short-circuit grounding wire.

[0015] In a possible implementation, a fifth connecting hole is arranged on the sliding block, and the fifth connecting hole is used for connecting a sliding block control rope.

[0016] In a possible implementation, the sliding block adopts an external double-axle sliding block to prevent the sliding block from swinging with the duckbill clamp, and to ensure a correct impact angle of the duckbill clamp.

[0017] In a possible implementation, the insulating rod adopts an insulating plate type sliding rail.

[0018] In a possible implementation, the insulating rod is not arranged to be telescopic.

[0019] The technical scheme provided in the application can at least achieve the following beneficial effects:

[0020] The auxiliary arc extinguishing device for quickly hanging a grounding wire provided in the application directly hangs the grounding wire on the grounding wire along the insulating rail, is more accurate and faster, is successfully hung once due to the directionality of the insulating rail, reduces arc discharge of the wire to the grounding wire, realizes the function of arc extinguishing, is suitable for hanging of grounding wires and personal safety wires of various voltage grades and straight towers and strain towers, shortens the hanging time of the grounding wires and the personal safety wires, improves the construction efficiency on site, and reduces the safety risk of the operating personnel. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0022] Figure 1 is a structural schematic diagram of a grounding wire quick hanging auxiliary arc extinguishing device shown by an exemplary embodiment of the present application;

[0023] Figure 2 is a structural schematic diagram of a slider and duckbill impact type wire clamp shown by an exemplary embodiment of the present application.

[0024] Reference signs:

[0025] 1, insulating rod; 2, slider; 3, hanging mechanism; 4, insulating plate control rope; 5, wire hook; 6, slider control rope; 7, grounding wire control rope; 8, short-circuit grounding wire; 9, "dry" type protrusion. DETAILED DESCRIPTION

[0026] In order to make the purpose, implementation and advantages of the present application more clear and understandable, the following will combine the drawings in the exemplary embodiments of the present application to clearly and completely describe the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not intended to limit the present application.

[0027] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0028] The terms "first", "second", "third" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise specified. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0029] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not necessarily limit to all the components clearly listed, but can include other components not clearly listed or inherent to these products or devices.

[0030] For the convenience of the technical solutions of the application, the following first explains some concepts involved in the application.

[0031] Extra-high voltage power grid: refers to 1000kV and above AC power grid or ±800kV and above DC power grid.

[0032] Short-circuit grounding wire: a temporary high-voltage grounding wire used after the power line is disconnected, and the complete grounding wire is composed of a plurality of soft copper wires with transparent sheaths and special wire clamps, and the cross-sectional area thereof shall not be less than 25mm².

[0033] Duckbill impact type wire clamp: a short-circuit grounding wire end wire clamp shaped like a duckbill, used for holding the wire and connecting and fixing the grounding wire, and hung by a control rope.

[0034] Before explaining the auxiliary arc extinguishing device for quick grounding wire hanging provided by the embodiments of the application, the application scenarios and implementation environments of the embodiments of the application are introduced.

[0035] With the rapid development of the national economy in recent years, the extra-high voltage and ultra-high voltage transmission lines have become an important part of the domestic power system. The extra-high voltage transmission line is an important strategic channel for cross-regional power grid energy complementation, and its characteristics are long transmission channel and large operation load.

[0036] When the line is powered off for maintenance, the first thing the maintenance personnel do is to power off, check the electricity, and hang the grounding wire. Two problems are found during the process of hanging the grounding wire. First, when the long-distance transmission line is powered off, especially when the single-pole and single-circuit of the extra-high voltage is powered off, the hanging of the grounding wire will produce a discharge arc of up to 2 meters. The electric arc will burn and even burn the insulating rope, burn the wire, and cause the hanging process to be pushed down and restarted, which is undoubtedly a great challenge for the operation of the high-altitude worker. Second, the extra-high voltage transmission line has high insulation configuration and long hardware structure, and the distance between the live part and the tower is at least 10 meters. The traditional grounding wire hanging is only controlled by a thin insulating control rope, and the grounding wire hanging work is like "threading a needle", which often takes nearly half an hour to complete the grounding wire hanging work.

[0037] Therefore, the traditional grounding wire hanging method is time-consuming and laborious, has high risk, and has certain safety hazards, and cannot meet the needs of the extra-high voltage line maintenance. In view of the need to improve the grounding wire hanging speed and safety, a more convenient grounding wire hanging auxiliary device is urgently needed.

[0038] Based on this, the application provides an auxiliary arc extinguishing device for rapid grounding wire hanging, which directly hangs the grounding wire on the grounding wire through the setting of the insulating plate type sliding rail, is more accurate and faster, and is once successful due to the directionality of the insulating rail, reduces the arc discharge of the wire to the grounding wire, realizes the function of arc extinguishing, is suitable for the grounding wire and personal safety wire hanging of various voltage grades and straight towers and strain towers, shortens the grounding wire and personal safety wire hanging time, improves the on-site construction efficiency, and reduces the safety risk of the operating personnel.

[0039] Next, the technical solutions of the application and how the technical solutions of the application solve the above technical problems will be specifically described through embodiments and in combination with the drawings. The embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments.

[0040] Figure 1 FIG. 1 is a structural schematic diagram of an auxiliary arc extinguishing device for rapid grounding wire hanging according to an example embodiment of the application.

[0041] In an example embodiment, as shown in FIG. 1, an auxiliary arc extinguishing device for rapid grounding wire hanging is provided, and in this embodiment, the device includes an insulating rod 1, a sliding block, and a hanging mechanism 3. Figure 1

[0042] The first connecting hole and the second connecting hole are respectively formed in the two ends of the insulating rod 1, and a wire hook 5 is installed through the second connecting hole, and the wire hook 5 is used for hanging the wire.

[0043] The sliding rail is further provided on the insulating rod 1, the sliding block is connected with the insulating rod 1 through the sliding rail, and the hanging mechanism 3 is installed on the side of the sliding block close to the wire hook 5.

[0044] Figure 2 FIG. 2 is a structural schematic diagram of a sliding block and a duckbill impact type wire clamp according to an example embodiment of the application.

[0045] In a possible implementation manner, the hanging mechanism 3 includes a duckbill impact type wire clamp, a “gan” type protrusion 9 is provided on the insulating block, a groove matched with the “gan” type protrusion 9 is provided at the tail of the duckbill impact type wire clamp, and the duckbill clamp is vertically and stably fixed on the sliding block through the clamping force of the tail clamp when the duckbill clamp is opened.

[0046] ​The duckbill clamp is vertically and stably fixed on the sliding block 2 by the force of the tail clamp of the duckbill clamp when the duckbill clamp is opened, when the needle of the duckbill clamp hits the wire, the needle is retracted, the duckbill clamp is closed to clamp the wire, the tail clamp is opened at the same time, the "gan" protrusion on the sliding block 2 is released, and the function of being separated from the sliding block 2 is realized.

[0047] In a possible implementation, the insulating rod 1 is connected with the insulating plate control rope 4 through the first connecting hole.

[0048] In a possible implementation, the wire hook 5 is an aluminum alloy plate hook, and the wire hook 5 is fixedly connected with the insulating rod 1 through a bolt.

[0049] In a possible implementation, the hook side of the wire hook 5 is everted outward, facilitating hooking on the wire.

[0050] In a possible implementation, a third connecting hole and a fourth connecting hole are arranged at the tail of the duckbill impact wire clamp, the third connecting hole is used for connecting the grounding wire control rope 7, and the fourth connecting hole is used for connecting the short-circuit grounding wire 8.

[0051] In a possible implementation, a fifth connecting hole is arranged on the sliding block 2, and the fifth connecting hole is used for connecting the sliding block 2 control rope.

[0052] In a possible implementation, the sliding block 2 is an external double-axle sliding block 2, which prevents the sliding block 2 from swinging with the duckbill clamp, and ensures the correct impact angle of the duckbill clamp.

[0053] In a possible implementation, the insulating rod 1 is an insulating plate type sliding rail.

[0054] In a possible implementation, the insulating rod 1 is not provided to be telescopic.

[0055] It can be seen that some embodiments of the application innovatively use an insulating plate as a sliding rail of a grounding wire quick mounting auxiliary arc extinguishing device, an external double-axle four-wheel closed type sliding block 2 as a sliding mechanism, and an aluminum alloy plate hook as a hook, so that the device is smoothly mounted, and a "gan" type separation mechanism is innovatively used to smoothly separate the sliding block 2 after the grounding wire is mounted, so that the grounding wire quick mounting auxiliary arc extinguishing device is smoothly separated from the wire.

[0056] Working process:

[0057] The worker uses the insulating rod 1 to hang the wire hook 5 of the insulating rod 1 on the wire, controls the rope through the slider 2, and makes the duckbill impact type wire clamp slide down, at this time, the duckbill clamp is vertically and stably fixed on the slider 2, when the duckbill clamp impact needle impacts on the wire, the impact needle is retracted, the duckbill clamp closes to clamp the wire, the tail clamp is opened at the same time, the "dry" protrusion on the slider 2 is released, the function of being separated from the slider 2 is realized, and the grounding wire is hung.

[0058] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0059] The above embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that, for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An auxiliary arc extinguishing device for quick grounding line hanging, characterized in that, The utility model relates to an insulating rod, a sliding block and a hanging mechanism. The insulating rod has a first connecting hole and a second connecting hole at two ends, and a wire hook is installed through the second connecting hole, which is used for hanging a wire. The insulating rod is provided with a sliding track, and the sliding block is connected with the insulating rod through the sliding track.

2. The auxiliary arc extinguishing device for quick grounding line connection according to claim 1, characterized in that, The hanging mechanism includes a duckbill impact type wire clamp, and a "gan" type protrusion is arranged on the sliding block.

3. The auxiliary arc extinguishing device for quick grounding line connection according to claim 1, characterized in that, The duckbill impact type wire clamp is vertically and stably fixed on the sliding block through the force of the tail clamp when the duckbill clamp is opened.

4. The auxiliary arc extinguishing device for quick grounding line connection according to claim 1, characterized in that, The insulating rod is connected with an insulating plate control rope through the first connecting hole.

5. The auxiliary arc extinguishing device for quick grounding line connection according to claim 4, characterized in that, The wire hook is an aluminum alloy plate hook, and the wire hook is fixedly connected with the insulating rod through a bolt.

6. The auxiliary arc extinguishing device for quick grounding line connection according to claim 2, characterized in that, The hook side of the wire hook is turned outward, which is convenient for hanging on a wire.

7. The auxiliary arc extinguishing device for rapid grounding line connection according to claim 1, characterized in that, The tail of the duckbill impact type wire clamp is provided with a third connecting hole and a fourth connecting hole.

8. The auxiliary arc extinguishing device for quick grounding line connection according to claim 1, characterized in that, The sliding block is provided with a fifth connecting hole, which is used for connecting a sliding block control rope.

9. The auxiliary arc extinguishing device for rapid grounding line connection according to claim 1, characterized in that, The sliding block adopts an external double shaft center sliding block to prevent the sliding block from swinging with the duckbill clamp, and ensures the correct impact angle of the duckbill clamp.

10. The auxiliary arc extinguishing device for rapid grounding line connection according to claim 1, characterized in that, The insulating rod adopts an insulating plate type sliding rail. The insulating rod is not provided with an extension.

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