Manual operating device for opening and closing of electrical switches

An electrical switch, opening and closing technology, applied in electrical switches, electrical components, circuits, etc., can solve the problem of easy escape of the handle, and achieve the effect of simple and reliable design structure, lightening burden, and fewer parts and components.

Active Publication Date: 2017-01-04
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a manual operating device for opening and closing an electric switch, so as to solve the technical problem in the prior art that the handle is easy to escape when the electric switch is manually opened and closed.

Method used

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  • Manual operating device for opening and closing of electrical switches
  • Manual operating device for opening and closing of electrical switches
  • Manual operating device for opening and closing of electrical switches

Examples

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Embodiment Construction

[0030] Such as Figure 1 to Figure 5As shown, an embodiment of a manual operating device for opening and closing an electric switch, the manual operating device in this embodiment includes a base 18, the base 18 is provided with a jack 180, and the corresponding rotating assembly in the jack 180 There is a manual shaft 8, the manual shaft 8 has a power input end and a power output end, and a manual baffle 18 for controlling the switch of the jack 180 is also hinged on the base 18. The manual operating device also includes a handle 21 correspondingly inserted into the socket 180 of the base 18 and docked with the manual shaft 8 to drive the manual shaft 8 to rotate for opening and closing operations. The rear end is connected with a crank handle 23. When the opening and closing operation is performed, the manual baffle 17 is driven to rotate to open the jack 180 on the base 18, and then the handle 21 is inserted into the jack 180 of the base 18 correspondingly to match the manu...

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PUM

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Abstract

The invention discloses a manual operating device for switching-off and switching-on of an electric switch. The manual operating device comprises a base and a handle, wherein the base is rotationally provided with a manual shaft in an assembling mode, and the handle is in butt joint with the manual shaft and is used for driving the manual shaft to rotate to conduct switching-off and switching-on operation. The manual operating device further comprises a lock bar movably inserted in the base, a locking position and an unlocking position are arranged on the moving travel of the lock bar, the lock bar is connected with the corresponding part of the handle in an insertion mode at the locking position so as to prevent the handle from being disengaged from the manual shaft, the lock bar is disengaged from the corresponding part of the handle at the unlocking position so that the handle can be normally disengaged from the manual shaft, and when the lock bar is at the locking position, the lock bar and the handle are in stopping and limiting fit in the axial direction of the manual shaft and are in rotating fit in the circumferential direction of the manual shaft. Due to the locking of the lock bar on the handle, the handle cannot be disengaged from the manual shaft and cannot shift out of the base, and thus the safety of manual operation can be effectively improved. When manual switching-off and switching-on operation is completed, the lock bar is made to move to the unlocking position from the locking position, at the moment, the lock bar is disengaged from the handle, and the handle can be normally disengaged from the manual shaft.

Description

technical field [0001] The invention relates to a manual operating device for opening and closing an electric switch. Background technique [0002] Electrical switches such as circuit breakers and grounding switches need to be manually opened and closed during the installation and commissioning process. The manual shaft corresponds to the transmission connection, drives the handle to rotate, and drives the auxiliary switch and the main switch of the electrical switch through the manual shaft and the corresponding transmission connection mechanism to perform opening and closing operations. [0003] However, in the existing manual opening and closing operation process, after the handle is inserted into the socket of the base and connected with the manual shaft transmission, due to the lack of protection means, on the one hand, the handle is easy to escape in the opposite direction and contact with the manual shaft. On the other hand, if the operator leaves during the operatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/20
Inventor 杨秋蓉宋超王东亮张敬涛郭良超付亚旭
Owner STATE GRID CORP OF CHINA
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