Crescent lock

Abstract

The invention discloses a crescent lock, which comprises a base and a cam lock disc matched with a buckle fixedly arranged on the window frame. The base is integrally provided with a shaft seat, and the cam lock disc is pivotally connected to the shaft seat. There is an elastic positioning device between the cam lock disc and the base; the advantage is that the structure is simple and the cost is low. Since the cam lock disc and the base are provided with an elastic positioning device, the relative distance between the cam lock disc and the base The rotation needs to apply a certain external force, so when the window is closed, even if there is a gap between the two windows, the window lock is not easy to be picked; The lock cylinder and the lock tongue lock the cam lock plate on the base, so that the two cannot rotate with each other, which greatly increases the safety and security of the window lock.

Description

technical field [0001] The invention relates to a lock, in particular to a crescent lock. Background technique [0002] Window is an integral part requisite in house construction, and for anti-theft, people have installed window lock on window, and for this reason, various window locks are full of beautiful things in the market at present. For some single-function window locks, such as a cam lock installed between two windows, as long as the cam lock disc shaft in the cam lock is connected to the frame of one window, the catch in the cam lock is fixedly arranged on the other side. On the corresponding frame of the window, turn the cam lock disc to slide into the lock, and then the window can be locked. Although the structure of this cam lock is relatively simple, because the cam lock disc is relatively easy to rotate, it can be locked between two windows. When there is a gap, the cam lock is easy to be picked open, and the security is not good. Contents of the invention ...

AI Technical Summary

Problems solved by technology

For some single-function window locks, such as a cam lock installed between two windows, as long as the cam lock disc shaft in the cam lock is connected to the frame of one window, the catch in the cam lock is fixedly arranged on the other side. On the corresponding frame of the window, turn the cam lock disc to slide into the lock, and then the window can be locked. Although the structure of this cam lock is relatively simple, because the cam lock disc is relatively easy to rotate, it can be locked between two windows. When there is a gap, the cam lock is easier to be picked open, and the security is not good

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