CN215733103U

CN215733103U - Special gag lever post of 220kV transformer substation electrified disconnected, meet drainage line

Info

Publication number: CN215733103U
Application number: CN202122209279.2U
Authority: CN
Inventors: 王凡; 李俊宇; 赵梦达; 叶洋; 宿杰; 李永福; 马涛; 王继康; 崔玉坤; 刁闯; 曹安全
Original assignee: Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd
Current assignee: Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-01
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to a special limiting rod for a 220kV transformer substation electrified disconnection and connection of a lead wire, which comprises two sets of three-section type insulating lock rods and a set of two-section type insulating cross rods; the three-section type insulating lock rod is a main body of the three-section type insulating operating rod, the three sections of insulating operating rods are connected through middle joints, port joints which can be connected with small tools are arranged at the upper end and the lower end of each three-section type insulating operating rod, and a detachable U-shaped lock head is arranged at the upper end of each operating rod; the two-section type insulating cross rod is connected through the middle connector, the port connectors are arranged at the left end and the right end of the two-section type insulating operating rod, and the circular hoops are arranged at the left end and the right end of the operating rod. The utility model can efficiently and safely assist the development of an operation project, and solves the defects that the distance between a metal arm of the insulating bucket arm vehicle and a live wire is not intuitive in the process of the operation project at present.

Description

Special gag lever post of 220kV transformer substation electrified disconnected, meet drainage line

Technical Field

The utility model relates to an electric power overhaul operation appliance, in particular to a special limiting rod for a 220kV transformer substation in live line disconnection and connection of a lead wire.

Background

The transformer substation drainage wire refers to a section of bare wire matched with a transformer substation bus, plays a role in communicating and guiding, the upper end of the bare wire is connected with the transformer substation bus through a wire clamp, the lower end of the bare wire is connected with the isolating switch through a joint, and the transformer substation bus can be communicated with the isolating switch through the drainage wire.

When a live-wire operator carries out an operation project of breaking and connecting a 220kV bus side drainage wire, the distance between the metal arm of the insulating bucket arm vehicle and a live wire is not visual in the operation process, especially, in the operation process of a side-phase operation, the distance between the metal arm of the insulating bucket arm vehicle and a middle-phase live wire is mainly observed, the ground operator does not have visibility in observation, and the observation of the operator in a bucket is judged by experience and does not have accuracy. The condition that the safety distance between a metal arm of the insulating bucket arm vehicle and an electrified body is insufficient can occur, and great personal and equipment risks exist.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides the special limiting rod for the electrified disconnection and connection of the lead wire of the 220kV transformer substation, which has the advantages of high pertinence of structural design, convenience and reliability in installation and adopts the insulating material for the main structure.

The technical scheme adopted by the utility model is as follows:

a220 kV transformer substation electrified disconnection and connection lead wire special limiting rod comprises two sets of three-section type insulating lock rods and a set of two-section type insulating cross rods; the three-section type insulating lock rod is a main body of the three-section type insulating operating rod, the three sections of insulating operating rod are connected through middle joints, the upper end and the lower end of the three-section type insulating operating rod are provided with port joints which can be connected with small tools, and the upper end of the operating rod is provided with a detachable U-shaped lock head; the two-section type insulating cross rod is a main body of the two-section type insulating operating rod, the two sections of insulating operating rod are connected through an intermediate connector, port connectors capable of being connected with small tools are arranged at the left end and the right end of the two sections of insulating operating rod, detachable circular hoops are arranged at the left end and the right end of the operating rod, fishtail screws are arranged on the hoops, and the two sections of insulating cross rod and the two sets of three-section type insulating lock rods can be fixed together by screwing the fishtail screws after the hoops at the two ends respectively embrace the two sets of three-section type insulating lock rods. Preferably, the special limiting rod is provided with a joint part, and the operating rod main body is made of insulating materials.

Preferably, a safety pin is arranged at the opening of the U-shaped lock head, a screw rod extends downwards from the rear end of the safety pin, the screw rod penetrates through a vertically through ring on the side surface of the rear end of the U-shaped lock head and then is screwed into the port connector, and after the U-shaped lock head is hung in a wire, the safety pin can be closed by rotating the operating rod, so that the wire is locked into the U-shaped lock head.

Preferably, the main body operating rod of the two sets of three-section type insulating lock rods is provided with yellow and black insulating colored paints alternately, and each section of the insulating colored paint is 20cm long.

The utility model has the beneficial effects that:

1. the utility model can efficiently and safely assist the development of the operation projects of live disconnection and connection of the lead wire of the 220kV transformer substation, enhance the operation standardization and increase the operation efficiency.

2. According to the utility model, by limiting the metal arm moving range of the insulating bucket arm vehicle, a special distance monitor which is originally added can be omitted, the manpower and material resource investment can be reduced, and the operation safety can be improved.

3. The utility model has strong pertinence of structural design, convenient and reliable installation and easy popularization and application.

4. The main body of the utility model is made of insulating materials, so that the distance between the peripheral electrified devices with different potentials is not shortened, the operation safety is improved, and the personal safety is better ensured.

5. The utility model can optimize the number ratio of the operating people and reduce the labor intensity and the operating cost.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a U-shaped lock and port connector configuration of the present invention;

FIG. 3 is a schematic view of an intermediate joint structure according to the present invention;

fig. 4 is a schematic view of the circular hoop structure of the present invention.

In fig. 1, 1-three-section type insulated operating rod, 2-middle joint, 3-port joint, 4-U-shaped lock head, 5-safety pin, 6-two-section type insulated operating rod, 7-circular hoop, 8-fishtail screw, 9-wire, 10-screw rod, 11-circular ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

As shown in figure 1, the utility model is a special limiting rod for a 220kV transformer substation electrified disconnection and connection of a lead wire, which comprises two sets of three-section type insulating lock rods and a set of two-section type insulating cross rods; the three-section type insulating lock rod is a three-section type insulating operating rod main body 1, yellow and black insulating colored paints are alternately arranged on the operating rod, and each section of insulating colored paint is 20cm long, so that an obvious mark is provided for an operator, and a specific distance can be calculated; the three sections of insulating operating rods are connected through middle joints 2, port joints 3 are arranged at the upper end and the lower end of a three-section insulating operating rod 1 and can be connected with small tools, a detachable U-shaped lock head 4 is arranged at the upper end of the operating rod, a safety pin 5 is arranged at an opening of the U-shaped lock head 4, a screw 10 extends downwards from the rear end of the safety pin 5, the screw 10 penetrates through a circular ring 11 penetrating from top to bottom on the rear end side surface of the U-shaped lock head and is screwed into the port joints 3, after the U-shaped lock head 4 is hung into a lead 9, the safety pin 5 can be closed by rotating the operating rod, and the lead 9 is locked into the U-shaped lock head 4; the two-section type insulating transverse rod is a two-section type insulating operating rod main body 6, the two-section type insulating operating rod is connected through an intermediate joint 2, port joints 3 are arranged at the left end and the right end of the two-section type insulating operating rod, small tools can be connected, detachable circular anchor ears 7 are arranged at the left end and the right end of the operating rod, fishtail screws 8 are arranged on the anchor ears, the anchor ears at the two ends are respectively used for holding two sets of three-section type insulating lock rods, the fishtail screws 8 are screwed, and the two-section type insulating transverse rod and the two sets of three-section type insulating lock rods can be fixed together.

Except for the joint part, the operating rod main body is made of insulating materials, so that the safety distance between different potential charged bodies can not be shortened, and the safety of operating personnel is further protected.

The inner diameter of the U-shaped lock head 4 is larger than that of the wire 9, after the two sets of three-section type insulating lock rods lock the wire, the metal arm of the insulating bucket arm vehicle can abut against the cross rod of the operation tool under the condition that the safety distance between the metal arm and a charged body is not changed, the wire is used as an axis to do small-range arc motion, and therefore the insulating bucket can be lifted to the most appropriate position.

In order to ensure that the special limiting rod can be used at different altitudes, the hoops at the two ends of the two-section type insulating cross rod can move on two sets of three-section type insulating lock rods according to the corrected safety distance, and the hoops are screwed and locked after the distance is confirmed.

When the locking device is used, firstly, two sets of three-section type insulating locking rods and one set of two-section type insulating cross rod are assembled, two U-shaped locking heads 4 are connected to the upper ends of the two sets of three-section type insulating locking rods, and two circular hoops 7 are connected to the left end and the right end of the two-section type insulating cross rod; the U-shaped lock head 4 is hung in a lead 9, the safety pin 5 is closed by rotating the operating rod, then two circular anchor ears 7 are respectively sleeved in two sets of three-section type insulating lock rods, a fishtail screw 8 is screwed after the circular anchor ears are moved to a preset position, the two sections of insulating cross rods and the two sets of three-section type insulating lock rods are fixed together, after the operations of electrified disconnection and electrified lead connection of a 220kV transformer substation are completed, the circular anchor ears 7 are loosened, the two sections of insulating cross rods are taken down, then the safety pin 5 is opened by rotating the operating rod, and the two sets of three-section type insulating lock rods are taken down.

The utility model can be used for carrying out the operation of the electrified disconnection and connection of the lead wire of the 220kV transformer substation, can efficiently and safely assist the development of operation projects, and solves the problems that the distance between the metal arm of the insulating arm car and the electrified wire is not intuitive in the process of the operation projects at present, especially, the distance between the metal arm of the insulating arm car and the middle-phase electrified wire is mainly observed in the operation process of side-phase operation, the observation of ground operators is not intuitive, the observation of operators in a bucket is judged by experience, the accuracy is not high, and the like.

Claims

1. A220 kV transformer substation electrified disconnection and connection lead wire special limiting rod is characterized by comprising two sets of three-section type insulating lock rods and a set of two-section type insulating cross rods; the three-section type insulating lock rod is a main body of the three-section type insulating operating rod, the three sections of insulating operating rods are connected through middle joints, port joints which can be connected with small tools are arranged at the upper end and the lower end of each three-section type insulating operating rod, and a detachable U-shaped lock head is arranged at the upper end of each operating rod; the two-section type insulating transverse rod is a main body of the two-section type insulating operating rod, the two-section type insulating operating rod is connected through an intermediate joint, port joints capable of being connected with small tools are arranged at the left end and the right end of the two-section type insulating operating rod, detachable circular anchor ears are arranged at the left end and the right end of the operating rod, fishtail screws are arranged on the anchor ears, and after the anchor ears at the two ends respectively hold two sets of three-section type insulating locking rods, the fishtail screws are screwed down, so that the two-section type insulating transverse rod and the two sets of three-section type insulating locking rods can be fixed together.

2. The special limiting rod for the 220kV transformer substation with the live disconnection and connection of the lead wire according to claim 1, which is characterized in that: the main body of the operating rod of the special limiting rod is made of insulating materials.

3. The special limiting rod for the 220kV transformer substation with the live disconnection and connection of the lead wire according to claim 1, which is characterized in that: the U-shaped lock head is characterized in that a safety pin is arranged at an opening of the U-shaped lock head, a screw rod extends downwards from the rear end of the safety pin, the screw rod penetrates through an upper and lower penetrating ring on the side surface of the rear end of the U-shaped lock head and then is screwed into the port connector, and after the U-shaped lock head is hung into a wire, the safety pin can be closed by rotating the operating rod to lock the wire into the U-shaped lock head.

4. The special limiting rod for the 220kV transformer substation with the live disconnection and connection of the lead wire according to claim 1, which is characterized in that: and yellow and black alternative insulating colored paints are arranged on the main body operating rods of the two sets of three-section insulating lock rods, and each section of insulating colored paint is 20cm long.