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Switching-on interlocking device and method for preventing interlocking failure

An interlocking device and interlocking technology, which is applied to air switch parts and other directions, can solve the problems of poor closing interlock reliability and easy failure, and achieve the effects of simple structure, good safety and reliable interlocking.

Active Publication Date: 2014-04-16
宁波剑润机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above disadvantages, the purpose of the present invention is to provide the field with a closing interlock device and a method for preventing interlock failure, so as to solve the technical problems of poor closing interlock reliability and easy failure of existing similar products

Method used

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  • Switching-on interlocking device and method for preventing interlocking failure
  • Switching-on interlocking device and method for preventing interlocking failure
  • Switching-on interlocking device and method for preventing interlocking failure

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Embodiment Construction

[0012] Now in conjunction with accompanying drawing, the present invention will be further described.

[0013] Such as figure 1 , figure 2 As shown, the closing interlock device includes a blocking arm 101 connected to the closing half shaft 1 in the high-voltage switch operating mechanism, and an interlock arm 3 connected to the output shaft 2 in the high-voltage switch operating mechanism. The specific connection between the interlocking crank arm and the output shaft is as follows: the interlocking crank arm is provided with an annular sleeve seat that is sleeved on the output shaft, and a protruding spring seat 301 is provided on the peripheral surface of the annular sleeve seat, and is on the same circumference as the spring seat. The arc-shaped sliding hole 302 in the direction is fixedly connected with the output shaft through a screw 5 through the arc-shaped sliding hole, so as to realize the limiting rotation of the output shaft and the interlocking crank arm. A ba...

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Abstract

The invention relates to a switching-on interlocking device and a method for preventing interlocking failure. The switching-on interlocking device comprises a retaining arm and an interlocking connecting lever, wherein the retaining arm rotates along with a switching-on semi-shaft in a high-voltage switch operation mechanism and the interlocking connecting lever rotates along with the output shaft in the high-voltage switch operation mechanism. The switching-on interlocking device is characterized in that the interlocking connecting lever and the output shaft are connected coaxially and rotate in a relative limiting mode. A reset spring which resets the interlocking connecting lever and the output shaft is arranged between the interlocking connecting lever and the output shaft, wherein the interlocking connecting lever and the output shaft rotate relatively. The maximum reset elasticity of the reset spring is smaller than the reset elasticity of a reset torsion spring connected with the switching-on semi-shaft. When the end of the interlocking connecting lever abuts against one side of the retaining arm to limit rotation of the retaining arm, the interlocking connecting lever and the output shaft reach a limiting end of the limiting rotation stroke of the interlocking connecting lever and the output shaft under the action of the reset spring. The switching-on interlocking device is simple in structure, reliable in interlocking, not prone to failure, good in safety, suitable for being used as a switching-on interlocking device of the high-voltage switch operation mechanism or a structural improvement of a product of the same kind.

Description

technical field [0001] The invention relates to a high-voltage switch operating mechanism, in particular to a closing interlock device in the high-voltage switch operating mechanism and a method for preventing interlock failure. Background technique [0002] The high-voltage switch operating mechanism is used as a control mechanism for opening and closing of high-voltage switches or circuit breakers. The traditional spring operating mechanism, because there is no closing interlock mechanism, is prone to misoperation, which may lead to safety accidents in severe cases. In order to solve the above problems, the existing spring operating mechanism is equipped with a corresponding closing interlock device in the closing mechanism, so as to effectively prevent the operating mechanism from closing again after closing, and avoid the occurrence of safety accidents. However, the existing closing interlock device often has interlock failure after being used for a period of time. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/08
Inventor 胡光福叶骏杰
Owner 宁波剑润机电有限公司
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