Tripping device for breaker operation mechanism

A technology of operating mechanism and tripping device, applied in the direction of protection switch operation/release mechanism, etc., can solve problems such as miniaturization of circuit breaker volume, deformation and loosening of drawbar, and achieve simple assembly, saving fasteners, and eliminating deformation Effect

Active Publication Date: 2007-01-24
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, since the above solution can make the drawbar the last part to be installed, the volume of the circuit breaker can also be reduced accordingly; the shortcomings are as follows: first, the use of screw assembly is still not enough to fully reflect the effect of quick installation, and Fasteners can not be saved to the greatest extent, so that the saving of parts cannot reach the ultimate degree; the second is that when the drawbar is fixed with the lock buckle with screws, the compatible surface of the drawbar and the lock buckle and the drawbar and the lock buckle are compatible with each other. The compatible surface of the bracket of the pivot lock is often subjected to th

Method used

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  • Tripping device for breaker operation mechanism
  • Tripping device for breaker operation mechanism
  • Tripping device for breaker operation mechanism

Examples

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Embodiment Construction

[0015] Through the applicant's description of the following examples, it will be more helpful to understand the technical essence and technical effect of the present invention, but the examples do not constitute a limitation to the technical solution of the present invention.

[0016] exist figure 1 and figure 2 Among them, the operating mechanism of the circuit breaker includes a bracket 6, which is used to set the first and second latches 2, 3 and jumper 4 of the tripping device of the present invention. The first lock 2 is pivoted on the first lock shaft 22 through a pair of first pivot holes 212 on a pair of first pivot flanges 21, and the two ends of the first lock shaft 22 are respectively pivoted. In the first pivot shaft hole 61 preset on both sides of the bracket 6 . Depend on figure 1 As shown, a spring stop protrusion 23 is extended on one side of the first buckle 2, and the spring stop protrusion 23 is used for leaning against the first spring foot 51 of the sp...

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PUM

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Abstract

This invention relates to a trip device for a breaker operation unit including a first and a second lock buttons having a pair of first and second pivoted flanges, a hop button, a spring and a traction rod characterizing that tenons are set on any pivoted flange in the pair of the first flanges of the first lock button and tenon holes are set on the middle section of the traction rod opposite to the tenons, grooves are set axially at the back of the middle section of the traction rod and swivel grooves are set on the opposite internal walls of the back of the middle section and the axis of the swivel groove and that of the groove are on a same line.

Description

technical field [0001] The invention relates to a tripping device of an operating mechanism of a circuit breaker, which is used for tripping the circuit breaker and belongs to the field of low-voltage electrical appliances. Background technique [0002] CN1409344A discloses the improvement of the trip bar and trip armature assembly used for circuit breakers, and specifically relates to the tripping device of the circuit breaker operating mechanism. As far as the matching structure of the main body of the lock bolt (customarily referred to as the buckle) is concerned, it has the characteristics of achievements, but also has deficiencies. The characteristic of Jianshu is that by opening a through hole on the drawbar and correspondingly opening a threaded through hole on the lock buckle, the two are connected by means of the through hole with screws, so that the bimetallic sheet can be heated. Bending deformation actuates the drawbar, causing the drawbar to rotate and at the s...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H71/12
Inventor 张洵初陈志刚陈玉兵熊伟
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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