Door and window lock body with adjustable and automatic locking and unlocking functions

Abstract

The invention discloses a door and window lock body with adjustable and automatic locking and unlocking functions. The door and window lock body comprises a spring bolt, a lock case, a lock case cover, a screw rod, a spring A and a rotary knob device and is characterized in that two side faces of the spring bolt are two symmetrical circular arc oblique planes; the rotary knob device is rotatably mounted in the lock case; a bulged edge is arranged at the front end of the rotary knob device; and the bulged edge jacks and loosens the screw rod at different angular positions. Further, the lock case comprises a front section and a rear section; the rear section of the lock case is positioned on a sliding chute in the front section of the lock case through a sliding rail of the rear section in atelescopic manner; and the front section and the rear section of the lock case are fixed through a mechanical screw. The door and window lock body has the following advantages: the lock body is provided with the spring bolt with the two symmetrical circular arc oblique planes, so that a door and a window are conveniently closed and opened, and the door can be easily opened or closed by pushing orpulling the door; and the lock body is adjustable in mounting size and wide in adaptability, has the locking insurance function and can conveniently lock the door and the window.

Description

technical field [0001] The invention relates to special equipment or measures related to doors and windows, and relates to a lock body, especially a door and window lock body with adjustable automatic locking and opening. Background technique [0002] In real life, indoor room doors (for example: bedroom doors, bathroom doors, kitchen doors) are limited to internal use, and its anti-theft requirements are not so strict. What people need is the convenience of opening and closing the room doors. That is to say, the indoor door lock is to make the door in a false state, rather than the real lock function of the key. Although the door locks used indoors are often in a false cover state, after all, it is necessary to rotate the handle or door knob by hand to realize the false closing and opening of the door. In this regard, Chinese patent 201110452912.9 discloses a "Visual Cover Door Lock Without Rotary Handle". The door lock includes a lock body and a lock box. is 19±2°, the o...

AI Technical Summary

Problems solved by technology

However, the door lock also has its disadvantages: the size of the lock hole opening is relatively high, if the size of the lock hole opening is not accurate enough, the door leaf will swing; the door leaf will generate collision noise when the door leaf collides with each other when it is opened and closed.

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