Sliding windows easy to ventilate and difficult to intrude

摘要

The present invention by installing a separate locking setting hardware for limiting the interval between opening the window between the window frame frame inner circumferential surface when the operation of closing the window frame, ventilation and to prevent intrusion from the outside during ventilation and The present invention relates to a secretary window provided with a security function. The present invention for realizing this, the lock setting hardware assembly installed between the joint surface of the window frame 10 and the window frame frame 20 to prevent the intrusion of the outside by limiting the opening degree of the window 10 during ventilation ( In the US door window comprising a 100, the lock setting hardware assembly 100, one side is hinged to the window 10, the other side is elastically rotatable to the opposite side of the window frame frame 20 Supported pivoting portion 110; A striker 120 installed on an opposite surface of the window frame frame 20 so that the pivot catching part 110 may be locked while the pivoting part 110 is pivoted when the window 10 is opened; And an operation handle part which is rotatably installed at one side of the pivot catching part 110 and selectively contacts one side of the pivot catching part 110 depending on whether the pivoting part 110 is operated. 130; includes.