Power distribution cabinet with anti-theft alarm function

Abstract

The invention provides a power distribution cabinet with an anti-theft alarm function, which can effectively improve the anti-theft safety performance of the power distribution cabinet. The power distribution cabinet comprises a cabinet body and a cabinet door, wherein a safety lock is arranged on the inner side of the cabinet door, the safety lock comprises two lock tongues, a lock core and a rotating sheet, one end of each lock tongue is movably connected with the rotating sheet through a rivet, the other end of each lock tongue corresponds to a fixing hole on the inner side of the cabinet body, trigger switches are arranged in the fixing holes, and when the cabinet door is closed, the lock tongues can enter into the fixing holes and be in contact with the trigger switches under the rotation of the lock core; an alarm device is arranged on the inner wall of the power distribution cabinet, and the trigger switches are connected with the alarm device through wires; and the alarm device comprises an electric bell, an optocoupler and a rectification circuit and gives out an alarm by virtue of the imbalance of a bridge circuit, and when the cabinet door is damaged, as the lock tongues are positioned in different positions, the contact states between the two lock tongues and the trigger switches are different, the bridge circuit in the alarm device can lose the balance, and an alarm effect is further realized.

Description

technical field [0001] The invention relates to the field of power transmission and distribution devices, in particular to a power distribution cabinet with an anti-theft alarm function. Background technique [0002] The current production enterprises and power supply management need to use a large number of power distribution cabinets or control boxes to accommodate various control switches, motors, generators or other control equipment. Because it is relatively easy to use, it has been widely used at present. However, since many power distribution cabinets need to be placed in the wild, and most of the power transmission and distribution equipment installed in the power distribution cabinets are made of copper and other metal materials, they have become the focus of theft by criminals; the existing power distribution cabinets have a relatively simple structure , is easy to be pried, and it is difficult for conventional caregivers to find out, which leads to the ab...

AI Technical Summary

Problems solved by technology

However, since many power distribution cabinets need to be placed in the wild, and most of the power transmission and distribution equipment installed in the power distribution cabinets are made of copper and other metal materials, they have become the focus of theft by criminals; the existing power distribution cabinets have a relatively simple structure , is easy to be pried, and it is difficult for conventional caregivers to find out, which leads to the abnormal power supply of the equipment and serious property losses. Therefore, it is necessary to provide a new type of device that can improve the anti-theft security of the power distribution cabinet

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