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A circuit breaker opening button locking device

A technology of locking device and circuit breaker, which is applied in the direction of protection switch operation/release mechanism, etc., which can solve the problems of inapplicable interlock function, single structure, and inapplicability of standard circuit breakers, so as to ensure the effect of not being able to close normally

Active Publication Date: 2016-08-17
HANGZHOU ZHIJIANG SWITCHGERA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of interlocking function is usually realized through mechanical interlocking or off-position key lock, but the mechanical interlocking device has certain requirements on the installation position and spacing distance, and it will not be possible to realize the circuit through this mechanism for long-distance circuit breakers. System interlock function
Although the off-position key lock is suitable for long-distance operation, its structural form is relatively simple, and some specifications of circuit breakers are not suitable for this method to realize the interlocking function.
Therefore, for some specifications of circuit breakers, it is not suitable for power supply systems with common power supply (grid) and backup power supply (grid or generator)

Method used

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  • A circuit breaker opening button locking device
  • A circuit breaker opening button locking device
  • A circuit breaker opening button locking device

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Embodiment Construction

[0012] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but this does not limit the protection scope of the present invention.

[0013] refer to figure 1 , figure 2 , image 3 , a circuit breaker opening button locking device according to the present invention includes a fixed plate 1, a lever 2, an eccentric cam 5, a program lock 8, a bracket 9, a cotter pin 10 and a roller 11, and is characterized in that the eccentric cam 5 is installed One end of the program lock 8, and fixed on the bracket 9 with the square nut 7; the bracket 9 is fixed on the fixed plate 1 through the screw 6; the lever 2 is equipped with a washer 3, and fixed on the pin shaft of the fixed plate 1 with the cotter pin 10; the roller 11 is sleeved on the riveting shaft at one end of the lever 2, and a washer 3 is added, fixed with a cotter pin 10; at the other end of the lever 2, a spring 4 is arranged, and the other end of ...

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Abstract

The invention discloses a circuit breaker opening button locking device which comprises a fixed plate, a lever, an eccentric cam, a program lock, a bracket and a roller. The device is characterized in that the eccentric cam is installed at one end of the program lock and is fixed on the bracket by using a square nut, the bracket is fixed on the fixed plate, a washer is installed on the lever and is fixed on the pin shaft of the fixed plate by using a split pin, the roller is sleeved on a pivot shaft at one end of the lever, and the washer is installed and is fixed by the split pin. The device has the advantages of simple structure and convenient operation and can be widely used for the interlock operation of a plurality of circuit breakers.

Description

technical field [0001] The invention relates to a locking device for an opening button of a circuit breaker, which belongs to the technical field of low-voltage electrical appliance manufacturing. Background technique [0002] At present, in a power supply system with a common power source (grid) and a backup power source (grid or generator), there must be an interlock function between two or three circuit breakers to ensure the reliability and safety of the power supply of the circuit system. This kind of interlocking function is usually realized through mechanical interlocking or off-position key lock, but the mechanical interlocking device has certain requirements on the installation position and spacing distance, and it will not be possible to realize the circuit through this mechanism for long-distance circuit breakers. System interlock function. Although the off-position key lock is suitable for long-distance operation, its structural form is relatively simple, and so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10
Inventor 朱立明戴水东
Owner HANGZHOU ZHIJIANG SWITCHGERA