Novel door lock for washing machines

Abstract

The invention discloses a novel door lock for washing machines. When a rotating cam rotates to a locking position under the action of other parts accidentally inserted into an insertion hole, a rotation actuator rotates under the action of a third biasing member and pushes a limit slider to slide; a butt portion of the limit slider is not abutted for limiting, and a sliding distance is larger than that of a door hook when locked in; the limit slider slides towards the insertion hole further under the action of the driving end of the limit slider till a front protrusion of the limit slider is abutted to the rotating cam, and the rotating actuator rotates to an actuating failure position; an electric controller which controls startup of a washing machine cannot be actuated to start up, and the washing machine cannot start operating. Therefore, by the use of the novel door lock with the structure, the electric controller of the washing machine cannot be switched on and the washing machine cannot start operating even after the rotating cam is accidentally rotated to the locking position, and the problems that a washing machine door is unclosed while the electric controller of the washing machine is started and accidental injury is caused to people, especially children, are solved.

Description

technical field [0001] The invention relates to a door lock structure, in particular to a washing machine door lock used for locking the cover of the washing machine. Background technique [0002] The door lock of the washing machine plays a vital role in the washing machine, especially the drum washing machine. If the washing machine cover can be opened at will during use, not only the washing water and clothes in the washing machine are easy to splash and throw out, but also it is easy for children to open it. The cover of the washing machine is in contact with the internal main parts, which is prone to accidents. [0003] In order to solve the above problems, the Chinese patent document CN102094305A discloses a door lock device, which includes a base body and a connected housing. The housing is provided with a bolt hole for the door bolt to be inserted when the door is closed. Corresponding to the bolt holes on the body, the base body is provided with a locking body with...

AI Technical Summary

Problems solved by technology

[0005] But the door lock device of above-mentioned patent document, there is the following weak point: in this door lock device, be through the rotation stop block II of lock body, lock plate near one end of lock body, back-moving spring I and back-moving spring II four. Therefore, the processing and assembly requirements for each part are high, and if there is a slight error, it may not be able to be completely locked in or out smoothly, the stability is not good, and it is prone to failure.

[0007] However, the washing machine door lock described in the above-mentioned patent has the following disadvantages: as long as the rotating member overcomes the bias force of the first biasing member and rotates, the sliding pin, slider, safety lock block and other related components will be interlocked to make the main body energized 1. When the washing machine starts and the power is turned on, the washing machine can start to work. Therefore, if a child is playing, he accidentally inserts other external objects into the door lock of the washing machine through the insertion hole, so that the rotating part overcomes the bias force of the first biasing part. At this time, the door hook does not extend into the door lock to match the rotating part, and the door of the washing machine is not closed. At this time, the door of the washing machine is not closed but the power of the washing machine is turned on, which will cause accidental injuries to people, especially children.

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