| 摘要 |
<p>The present invention relates to a device of controlling the opening/closing of a window. The device comprises latch sections (4) and a control piece (5) at a multi-stage stopper (1) so that a window gap can be gradually opened; and a latch hole (7) at the bottom of the window lock/rotation control section (2) for strong locking, where by the latch hole (7) is inserted into a ring pin (8) so that the window could not be opened from the outside.</p> |
