One-way lock body for door window

Abstract

The invention relates to a one-way lock body for a door window. The one-way lock body comprises a left lock case and a right lock case which are buckled with each other; a sliding plate capable of sliding left and right is arranged between the left lock case and the bottom end of the right lock case; a convex perforation plate is arranged at the middle part of the top end surface of the sliding plate; three positioning notches are separately formed in the front side wall of the sliding plate below the perforation plate; a safe clamping plate capable of sliding left and right is arranged below the perforation plate; a plurality of teeth holes are distributed in the perforation plate in an equally-spaced manner; a transmission gear engaged with the teeth holes is arranged at the top of the perforation plate; and a main shaft gear engaged with the transmission gear is arranged above the transmission gear. The one-way lock body is reasonable in structure design, and when the safe clamping plate leaves the positioning notches in the sliding plate, the main shaft gear rotates to drive the transmission gear, the perforation plate is poked by the transmission gear, the sliding plate moves along with the perforation plate to enable another positioning notch in the sliding plate to be clamped with the safe clamping plate, the main shaft gear drives the sliding plate to act to realize unlocking, and the one-way lock body for the door window is safe and practical.

Description

technical field [0001] The invention relates to a one-way lock body for doors and windows. Background technique [0002] The movement of the lock bolt in the lock body of the traditional mechanical lock for doors and windows is realized by the connecting rod. This structure has high requirements on the performance of the connecting rod. This kind of lock body does not have safety device, has certain potential safety hazard for the family that has child. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a one-way lock body for doors and windows. [0004] The one-way lock body for doors and windows of the present invention includes a left lock case and a right lock case that are engaged with each other, a safety card notch is provided on the left side wall of the left lock case near the bottom end, and the right side of the right lock case A safety card slot is provided on the side wall near the bottom, a slid...

AI Technical Summary

Problems solved by technology

[0002] The movement of the lock bolt in the lock body of the traditional mechanical lock for doors and windows is realized by the connecting rod. This structure has high requirements on the performance of the connecting rod. This kind of lock body has no safety device, which has certain potential safety hazards for families with children.

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