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Position indicating and locking device

A locking device and indicating technology, applied in switchgear, switchgear parts, pull-out switchgear and other directions, can solve the problems of inaccurate position of circuit breaker, insufficient precision and reliability, and achieve accurate and reliable locking structure. The effect of eliminating visual errors and ensuring positioning accuracy

Active Publication Date: 2007-03-28
JIANGSU DAQO KFINE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problem is: due to the deviation of the operator's viewing angle and the deviation of the position during the forward and backward movement, the circuit breaker is not in place accurately, which can easily cause misoperation
However, the analysis shows that there are still the following deficiencies: 1. The slide plate has no direct positioning function, and it needs to use the square shaft fixedly connected to it, which is not only complicated in structure, but also not high enough in precision; The realization of the convex structure is not reliable enough; 3. The indicating device is a rotating pointer, which is prone to visual errors

Method used

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  • Position indicating and locking device

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Experimental program
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Effect test

Embodiment 1

[0017] The position indication and locking device of the drawer type circuit breaker in this embodiment is shown in Figures 1, 2 and 3, and mainly consists of a base plate 16, a cover plate 17, a slide plate 4, a driving screw 1, and can rotate around a pin shaft 15 on the base plate 16. The indicator 2, the locking shaft 18, the locking plate 6 and the like are composed. The bottom plate 16 supports the transmission screw 1 and its locking mechanism. The sliding plate 4 that moves synchronously with the circuit breaker body is formed with two parallel chute 4a, and these two chute are respectively matched with the rollers 14 and 5 installed on the bottom plate 16 to form the first moving pair. One side of the slide plate is respectively formed with three U-shaped positioning grooves 4b corresponding to the separation, test and connection positions of the circuit breaker body.

[0018] The locking mechanism is arranged on the locking plate 6, and the locking plate cooperates ...

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PUM

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Abstract

Belonging to technical field of power supply control apparatus, the invention is related to position indication and locking device. The device includes bottom plate, transmission screw rod and lock gear supported on the bottom plate, movable sliding plate synchronous to main body. The sliding plate and the bottom plate constitute first motion pair. Positioning notches corresponding to positions: separation from main body, test, and connection are prepared on side of the sliding plate. The locking device is setup on a locking plate. The locking plate and the bottom plate constitute second motion pair. Direction of second motion pair is perpendicular to first motion pair approximately. Positioning pin matched to positioning notches is fixed on the sliding plate. Positioning pin is tended to fall into positioning notches. The invention guarantees positioning accuracy, and simplifies mechanism. Positioning pin type locking structure of transmission screw rod is accurate and reliable.

Description

technical field [0001] The invention relates to a position indicating and locking device, in particular to an improvement of a position indicating and locking device of a drawer type circuit breaker and a drawer type switchgear, and belongs to the technical field of power supply control facilities. Background technique [0002] When the drawer type circuit breaker is working, it usually has three position states: separation, test and connection. The traditional withdrawable circuit breaker has no ideal positioning mechanism for the three positions of separation, test and connection, so the determination of the three positions needs to rely on the analog indication of the pointer on the analog indicator. The specific implementation structure is to install one end of the analog indicator on the sliding plate that moves synchronously with the circuit breaker, and the other end protrudes out of the bottom plate after passing through the support, and then use the pointer to indic...

Claims

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Application Information

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IPC IPC(8): H02B11/127H02B11/02
Inventor 王靖胡义琴王立强
Owner JIANGSU DAQO KFINE ELECTRIC
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