CN114203478B

CN114203478B - Interlocking structure of disconnecting switch and circuit breaker

Info

Publication number: CN114203478B
Application number: CN202111407212.8A
Authority: CN
Inventors: 张涛; 丁声飞; 姚丽敏
Original assignee: Zhenjiang Dangao Electric Equipment Co ltd
Current assignee: Zhenjiang Dangao Electric Equipment Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2023-07-07
Anticipated expiration: 2041-11-24
Also published as: CN114203478A

Abstract

The utility model provides an interlocking structure of isolator and circuit breaker includes fly leaf, connecting rod, locking piece, vertical track and pivot, the one end activity of fly leaf articulates on isolator's operating panel, and the other end of fly leaf articulates with the one end of connecting rod mutually, and the other end of connecting rod articulates there is the locking piece, the locking piece be located vertical track to can follow vertical track up-and-down motion, the pivot be located the below of locking piece, the one end of pivot be equipped with locking piece matched with draw-in groove, the other end of pivot is equipped with the circuit breaker switch. The interlocking structure drives the locking block to clamp the rotating shaft through the movable baffle and the connecting rod, so that the interlocking between the isolating switch and the circuit breaker is realized, the occurrence of safety accidents caused by misoperation of operators is avoided, and the interlocking structure is simple and reliable, convenient to control and operate, low in manufacturing and maintenance cost and suitable for popularization and application.

Description

Interlocking structure of disconnecting switch and circuit breaker

Technical Field

The invention relates to an interlocking structure, in particular to an interlocking structure of a disconnecting switch and a circuit breaker.

Background

The high-voltage switch cabinet is used in power systems of power plants and substations, mainly plays roles of power generation, power transmission, power distribution, electric energy conversion, circuit protection and the like, and most of the existing high-voltage switch cabinets are matched with a breaker to use, so that an interlocking structure is required to be arranged between the breaker and the breaker in order to ensure reliable operation of electrical equipment, namely, when the breaker is in an overhauling state, the breaker cannot be subjected to closing operation, and when the breaker is in a closing state, the breaker cannot be subjected to overhauling operation.

Disclosure of Invention

The invention aims to provide an interlocking structure of a disconnecting switch and a circuit breaker.

The utility model provides an interlocking structure of isolator and circuit breaker includes fly leaf, connecting rod, locking piece, vertical track and pivot, the one end activity of fly leaf articulates on isolator's operating panel, is equipped with electric button on the operating panel, electric button shelter from by fly leaf, the other end of fly leaf articulates with the one end of connecting rod mutually, the other end of connecting rod articulates there is the locking piece, the locking piece be located vertical track to can follow vertical track up-and-down motion under the drive of fly leaf and connecting rod, the pivot be located the below of locking piece, the one end of pivot be equipped with locking piece matched with draw-in groove, the other end of pivot is equipped with the circuit breaker switch.

Preferably, the operation panel is provided with an arc groove, the arc groove takes a hinge point of the movable baffle and the operation panel as an arc center, and the movable baffle is provided with a pin rod positioned in the arc groove.

Preferably, rubber lugs for clamping the pin rod are arranged at two ends of the arc-shaped groove.

Preferably, one end of the pin rod is arranged in the arc-shaped groove, and the other end of the pin rod is hinged with the connecting rod.

Preferably, six evenly distributed vertical edges are arranged on the rotating shaft, bayonets are arranged at the positions, right below the locking blocks, of the vertical edges, and the bayonets on the six vertical edges are combined to form annular clamping grooves.

Preferably, the locking piece includes sliding part and block portion, sliding part be located vertical track to sliding part's back is articulated mutually with the connecting rod, block portion and epaxial draw-in groove of pivot cooperate, be equipped with two or more fixture blocks on any one of the left surface and the right surface of block portion, the fixture block can be along with locking piece down motion to between two adjacent standing edges.

The beneficial effects are that: the invention discloses an interlocking structure of a disconnecting switch and a circuit breaker, which drives a locking block to clamp a rotating shaft through a movable baffle and a connecting rod, realizes the interlocking between the disconnecting switch and the circuit breaker, avoids the occurrence of safety accidents caused by misoperation of operators, has simple and reliable interlocking structure, convenient control and operation and low manufacturing and maintenance cost, and is suitable for popularization and application.

Drawings

FIG. 1 is a front view of an interlock structure of the disconnector in a locked state;

FIG. 2 is a side view of the interlock structure with the disconnector in a locked state;

FIG. 3 is a front view of the interlock structure with the disconnector in unlocked state;

FIG. 4 is a schematic diagram of the connection structure of the lock block, the shaft and the breaker switch;

FIG. 5 is a schematic structural view of a lock block;

FIG. 6 is a schematic structural view of a rotating shaft;

in the figure: 1. the movable baffle 11, the pin rod 2, the connecting rod 3, the locking piece 31, the sliding part 32, the clamping part 33, the clamping block 4, the vertical rail 5, the rotating shaft 51, the clamping groove 52, the vertical edge 53, the bayonet 6, the isolating switch 61, the operation panel 62, the electric button 63, the arc-shaped groove 64, the rubber bump 7 and the breaker switch.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are intended to be illustrative only and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1 to 6, an interlocking structure of a disconnecting switch and a circuit breaker comprises a movable baffle 1, a connecting rod 2, a locking piece 3, a vertical rail 4 and a rotating shaft 5, one end of the movable baffle 1 is movably hinged on an operation panel 61 of the disconnecting switch 6, an electric button 62 is arranged on the operation panel 61, the electric button 62 is shielded by the movable baffle 1, the other end of the movable baffle 1 is hinged with one end of the connecting rod 2, the other end of the connecting rod 2 is hinged with the locking piece 3, the locking piece 3 is positioned in the vertical rail 4 and can move up and down along the vertical rail 4 under the driving of the movable baffle 1 and the connecting rod 2, the rotating shaft 5 is positioned below the locking piece 3, one end of the rotating shaft 5 is provided with a clamping groove 51 matched with the locking piece 3, and the other end of the rotating shaft 5 is provided with the circuit breaker 7.

In this embodiment, the operation panel 61 is provided with an arc-shaped slot 63, the arc-shaped slot 63 uses the hinge point of the movable baffle 1 and the operation panel 6 as an arc center, and the movable baffle 1 is provided with a pin 11 positioned in the arc-shaped slot 63.

In this embodiment, rubber bumps 64 for locking the pin 11 are provided at both ends of the arc-shaped groove 63.

In this embodiment, one end of the pin 11 is disposed in the arc-shaped groove 63, and the other end of the pin 11 is hinged to the connecting rod 2.

In this embodiment, six evenly distributed vertical edges 52 are provided on the rotating shaft 5, and bayonets 53 are provided at the position of the vertical edges 52 right below the locking piece 3, and the bayonets 53 on the six vertical edges 52 are combined to form an annular clamping groove 51.

In this embodiment, the locking piece 3 includes a sliding portion 31 and a locking portion 32, the sliding portion 31 is located in the vertical track 4, the back of the sliding portion 31 is hinged to the connecting rod 2, the locking portion 32 is matched with a locking groove 51 on the rotating shaft 5, at least two locking blocks 33 are disposed on any one of the left side surface and the right side surface of the locking portion 32, and the locking blocks 33 can move downward along with the locking piece 3 to between two adjacent vertical edges 52.

The interlocking structure drives the locking block to clamp the rotating shaft through the movable baffle and the connecting rod, so that the interlocking between the isolating switch and the circuit breaker is realized, the occurrence of safety accidents caused by misoperation of operators is avoided, and the interlocking structure is simple and reliable, convenient to control and operate, low in manufacturing and maintenance cost and suitable for popularization and application.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. The utility model provides an interlocking structure of isolator and circuit breaker, its characterized in that, including fly leaf, connecting rod, locking piece, vertical track and pivot, the one end activity of fly leaf articulates on isolator's operating panel, is equipped with electric button on the operating panel, electric button shelter from by fly leaf, the other end of fly leaf articulates with the one end of connecting rod mutually, the other end of connecting rod articulates there is the locking piece, the locking piece be located vertical track to can follow vertical track up-and-down motion under the drive of fly leaf and connecting rod, the pivot be located the below of locking piece, the one end of pivot be equipped with locking piece matched with draw-in groove, the other end of pivot is fixed to be equipped with the circuit breaker switch, operating panel on be equipped with the arc wall, the arc wall is with the hinge point of fly leaf and operating panel as the arc heart, the fly leaf on be equipped with the pin that is located the arc wall, the both ends of arc wall are equipped with the rubber lug that is used for blocking the pin, the one end of pin is located the arc wall, the other end and connecting rod articulated mutually to be equipped with six evenly distributed along vertical track, the pivot is equipped with six vertical bayonet sockets in the vertical edge that form the combination of bayonet socket immediately under the bayonet socket.

2. The interlocking structure of the disconnecting switch and the circuit breaker according to claim 1, wherein the locking piece comprises a sliding part and a clamping part, the sliding part is positioned in the vertical rail, the back of the sliding part is hinged with the connecting rod, the clamping part is matched with clamping grooves on the rotating shaft, any one of the left side surface and the right side surface of the clamping part is provided with at least two clamping blocks, and the clamping blocks can move downwards along with the locking piece to a position between two adjacent vertical edges.