Locking device of door of washing machine

Abstract

The invention discloses a locking device of a door of a washing machine, comprising an upper housing (1), an installing seat (27) and an installing substrate (21), wherein a limiting block (8), a peach-shaped core slider (12), a coil release, an electric heating switch and four plug pins (9, 17, 20 and 28) are arranged inside the installing seat (27); the limiting block (8) is linked with the electric heating switch; the bottom of the installing seat (27) is provided with a square hole which corresponds to the limiting block (8); the installing substrate (21) is provided with a slider (24) and a lever (23); when the head of a door hook (32) is inserted, the slider (24) and the lever (27) are pushed by the head of the door hook (32); and the upper housing (1) is covered on the assembled installing seat (27), then is put into the assembled installing substrate (21) together. The device can be started normally and forced to start as well, and fast cut off power supply after being forced to start; and the device has the advantages of safety, reliability, flexible movement and the like and is especially applied to control the on / off of the doors of the various cylinder washing machines.

Description

technical field [0001] The invention relates to a door locking device of a washing machine or a clothes dryer, belonging to the technical field of household appliances. Background technique [0002] Existing washing machines are generally equipped with door locks, and the door locks have safety devices, which have mechanical locking and time-delay protection functions. Through it, other devices can be powered on to execute programs. After 15 seconds of power on, the safety device will work and lock the door hook. , During the working process of the washing machine, the door is in a locked state. After the washing process is finished, the safety device will release the locking mechanism after a delay of two or three minutes, and the other electrical appliances of the washing machine will be powered off before the door can be opened. The purpose is to prevent the door from being opened during the washing process or during the dehydration process, and the water will flow out of...

AI Technical Summary

Problems solved by technology

As disclosed in Chinese patent CN200520113959.2 "A Locking Device for the Door of Drum Washing Machine", after the device closes the door of the washing machine and starts to work normally, the door of the washing machine is always in a locked state and cannot be opened. , the door of the washing machine can be opened normally, and the user cannot force it to open according to the actual use situation, even if it is forced to open, there is a great safety hazard

In addition, there are often failures such as the power is not self-locking, the self-locking light is not on, and the door cannot be opened when the power is off.

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