Anti-misoperation interlocking device for low-voltage cabinet electric operation switch drawer unit

A technology of interlocking device and drawer unit, which is applied to switch devices, electrical switches, electrical components, etc., can solve the problems of inability to interlock protection, and achieve the effect of improving safety and reducing complex mechanisms.

Pending Publication Date: 2021-02-09
CHINA IPPR INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a misoperation-preventing interlocking device for the electric switch drawer unit of the low-voltage cabinet

Method used

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  • Anti-misoperation interlocking device for low-voltage cabinet electric operation switch drawer unit
  • Anti-misoperation interlocking device for low-voltage cabinet electric operation switch drawer unit
  • Anti-misoperation interlocking device for low-voltage cabinet electric operation switch drawer unit

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Embodiment Construction

[0026] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0027] Such as Figure 1~6 As shown, the misoperation preventing interlocking device of the present invention may include an interlocking mechanism and a locking circuit.

[0028] The interlocking mechanism and the blocking circuit are arranged on the drawer unit. The drawer unit can include drawer 13, roller 18, guide rail 19 and drawer unit laminate 20; drawer 13 is surrounded by front panel 14, rear panel 15, left and right side panels 16 and bottom panel 17; The drawer 13 is slidably connected to the guide rail 19 and the drawer unit laminate 20 through the roller 18 (the roller slides on the guide rail); the guide rail 19 is fixedly installed on the drawer uni...

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PUM

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Abstract

The invention provides an anti-misoperation interlocking device for a low-voltage cabinet electric operation switch drawer unit and the low-voltage cabinet electric operation switch drawer unit. The anti-misoperation interlocking device comprises an interlocking mechanism and a locking circuit which are installed on the drawer unit. The locking circuit comprises an electromagnetic lock, an electric operating mechanism and a plastic shell switch with a closing auxiliary contact, the electromagnetic lock comprises a lock cylinder, the plastic shell switch is electrically connected with the electromagnetic lock and can supply power to or cut off power from the electromagnetic lock through opening and closing of the closing auxiliary contact, and therefore the lock cylinder of the electromagnetic lock stretches out or draws back. The electric operating mechanism is electrically connected with the plastic shell switch; the interlocking mechanism comprises a mechanical unlocking button, an unlocking push rod, an interlocking mechanism protection plate, a reset spring, a transmission gear, a gear rigid connection shaft, a drawer locking bolt and a limiting structure. By means of the interlocking mechanism and the locking circuit, misoperation interlocking of the low-voltage cabinet electric operating switch drawer is reliably prevented, the drawer is prevented from being pulled out orinserted when loaded, and personal safety and operation reliability are guaranteed.

Description

technical field [0001] The invention relates to a misoperation preventing interlocking device for an electric switch drawer unit of a low-voltage cabinet, and belongs to the technical field of low-voltage withdrawable switch cabinets. Background technique [0002] In the standard low-voltage power distribution system, the drawer cabinet is widely used because of its high reliability, easy maintenance, and beautiful appearance. At the same time, with the promotion of intelligent power distribution technology and unattended technology, more and more low-voltage molded case switches are installed with electric operating mechanisms to achieve remote / local control. In the past, the drawer-type molded case switch generally used a manual operation handle to realize mechanical locking, so that the drawer could only be pulled out for inspection when the circuit breaker was in the off state. [0003] The structure of the live-operated plastic case switch is different from that of the...

Claims

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Application Information

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IPC IPC(8): H01H9/20H02B11/133H02B11/173
CPCH01H9/20H02B11/133H02B11/173
Inventor 胡魁琦劳大实朱江沈雯孔凡迪
Owner CHINA IPPR INT ENG
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