Sliding window safety latch with limited opening

Abstract

The invention discloses a window moving safety bolt with an opening limitation function in the technical field of building door window safety protection. The window moving safety bolt comprises a limiting device and a positioning device which are arranged on opposite window frames of two parallel push-pull window doors respectively; the locking and the limited opening of the window doors are achieved through various connection methods and separation of the positioning device and the limiting device. The window moving safety bolt can be manually operated only when the push-pull window doors are closed, so that only indoor people can operate the window moving safety bolt, the purpose of guaranteeing that the window moving safety bolt cannot be operated by outdoor people when the opening range of the push-pull window doors is limited is achieved, and the effects of opening a window for ventilation and preventing indoor children from directly opening the push-pull window doors and preventing outdoor people from opening the push-pull window doors so as to avoid entering a room are achieved.

Description

technical field [0001] The invention relates to a safety bolt technology in the technical field of residential building window and door accessories, in particular to a position-limiting safety device suitable for closing and opening ventilation of push-pull windows and doors. Background technique [0002] At present, there are many kinds of safety devices used on push-pull windows and doors used in the field of residential buildings. In addition to various types of bolts used to lock the windows and doors when the push-pull windows and doors are closed, there are also safety technologies such as sliding window anti-theft chains. Windows and doors provide security. However, the above technologies can only provide safety protection in one state for push-pull windows and doors. For example, the hitch of a push-pull window can only work when the push-pull window is completely closed. Once the push-pull window is opened, the hitch loses its safety function immediately, and the d...

AI Technical Summary

Problems solved by technology

However, the limitation of the device to limit the position of the window through the locking block is that: the opening degree is limited by the position of the locking block and cannot be controlled; there is no protection on the locking block structure, and accidents are very likely to occur if accidentally touching the locking block In case of unlocking or pinching of children's fingers

In addition, this technology can only be applied in one of the two states of the window and door being closed or open.

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