Self-resetting opening device of switch cabinet operation mechanism

An operating mechanism and self-resetting technology, applied to the power device inside the switch, etc., to achieve the effects of reducing equipment accidents, easy processing, and reliable operation

Active Publication Date: 2017-02-22
SHANGHAI PINGGAO TIANLING SWITCHGEAR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a switchgear operating mechanism self-resetting opening device for the problems existing in the existing relay opening circuit. The buckle coil is used in conjunction with relay protection, which can quickly cut off the fault current to protect the transformer and its load-side equipment

Method used

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  • Self-resetting opening device of switch cabinet operation mechanism
  • Self-resetting opening device of switch cabinet operation mechanism

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0024] see figure 1 and figure 2 , the self-resetting opening device of the switch cabinet operating mechanism shown in the figure includes the mechanism output shaft 9 and the mechanism output crank arm 1 installed on the output shaft 9 . The mechanism output angle is a fixed value, and different stretching distances can be achieved by adjusting the arm length of the mechanism output crank arm 1 . A hole is designed at the end of the output crank arm 1 of the mechanism, and one end of the extension spring 2 is fixed. On the shaft 5, the pin shaft 5 is fastened on the mechanism body 11 as a fulcrum, and the first crank arm 3 and the second crank arm 4 can flexibly rotate around the pin shaft 5. It is fixed by cotter pin 12 to prevent it from falling ...

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Abstract

The invention discloses a self-resetting opening device of a switch cabinet operation mechanism. The self-resetting opening device comprises a mechanism body, a pin shaft, a first crank arm, a second crank arm, a mechanism output crank arm, a tension spring and a rotary opening knob, wherein a mechanism rotation shaft and a low-energy-cost trip coil are mounted on the mechanism body, a guide rod is arranged in the low-energy-cost trip coil, the pin shaft is mounted on the mechanism body, the first and second crank arms are mounted on the pin shaft in a sleeved manner, the second arm is in driving contact with a top rod in the low-energy-cost trip coil, the first crank arm drives the second crank arm to move during resetting, the mechanism output crank arm is mounted on the mechanism rotation shaft and revolves synchronously with the mechanism rotation shaft, two ends of the tension spring hang on the first crank arm and the mechanism output crank arm respectively, a barrier plate is arranged on the rotary opening knob, and the second crank arm is in driving contact with the barrier plate during opening. The self-resetting opening device of the switch cabinet operation mechanism has the advantage that the low-energy-cost trip coil can be reset through energy output of the mechanism body.

Description

technical field [0001] The invention relates to the technical field of a switch cabinet operating mechanism, in particular to a self-resetting opening device for a switch cabinet operating mechanism. Background technique [0002] The operating mechanism is the main component of the switchgear, and is generally installed outside the switchgear for the closing and opening operations of the switchgear; the operating mechanism generally uses a tripping device as the closing and opening control device to realize the closing and opening functions. [0003] As an important component of the operating mechanism, the opening trip coil is an end actuator in the opening circuit. When the opening signal is given from the outside, the coil is energized and moves, and the guide rod overcomes the action of the return spring to cause the mechanism to open and complete the opening operation of the equipment. The opening coil needs an external power supply of DC110V or 220V. As the national ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/28
CPCH01H3/28
Inventor 张佳飞邬建刚顾晓冬刘春霞
Owner SHANGHAI PINGGAO TIANLING SWITCHGEAR CO LTD
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