Window latch and door sheet lock catch mechanisms adjustable in connecting rotating shaft length

Abstract

The invention discloses a window latch or door sheet lock catch mechanism adjustable in connecting rotating shaft length, and in particular relates to a connecting rotating shaft suitable for the locking bars or the lock catches of the window frames or door sheets different in thickness. A cambered nut is arranged at the outer edge of a rotating handle, the inner side of the cambered nut is fixedly connected with a screw arranged in the inner diameter of a sleeve, and the other end of the screw is screwed down with the longitudinal threads of the square connecting rotating shaft; when the cambered nut is rotated, the length of the square connecting rotating shaft capable of driving the locking bar of the window latch or the tongue block of the door sheet lock catch can be adjusted, and therefore, the driving rotating shaft mechanism is applicable to mounting the latches or lock catches of the window frames or door sheets different in thickness.

Description

technical field [0001] The invention relates to a mechanism for adjusting the length of a connecting rotating shaft of a window latch or a door panel latch, in particular to a connecting rotating shaft mechanism applicable to locking rods or latches of different thicknesses of window frames or door panels. Background technique [0002] Generally, windows and door panels are equipped with lock levers and lock latches for rotation and opening and anti-theft. The basic structure extends from the rotating handle with a lock lever that drives the window latch or a tongue of the door panel latch. The square shape of the block is connected to the axis of rotation. [0003] As we know, there is no standard for the thickness of general windows or door panels, usually the thickness is about 25mm-60mm, so the depth of the latches or catches embedded in the window frame is not uniform. [0004] Such as Figure 11 and Figure 12 As shown, taking the traditional window latch as an examp...

AI Technical Summary

Problems solved by technology

[0005] According to the latches or latches installed on windows or door panels of different thicknesses, when manufacturing or selling the latches or latches, the manufacturer is equipped with a fixed length or a square rotating shaft with different lengths for installation. For windows or door panels, in addition to increasing difficulties in production, inventory, and distribution, the square rotating shaft is only inserted into the rotating square hole of the latch or latch structure when installed, and there are looseness, excessive clearance, and product Noise and risk of falling

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