| 摘要 |
<p>A device (5) for preventing the window sash (2) from dropping is disclosed, which is connected between the window sash (2) and the window frame (1). The device (5) includes a window sash fastening block (54), a window frame fastening block (52), an elastic wire (53) and a sleeve (51), wherein the elastic wire (53) connecting the window sash fastening block (54) with the window frame fastening block (52); said window sash fastening block (54) is provided with a throughhole (523), said throughhole (523) inserted with the sleeve (51); one end of the elastic wire (53) is secured to the window frame fastening block (52), the other end traverses the throughhole (523) of the window sash fastening block (54) and is inserted into the sleeve (51), and a position-limiting block (531) is mounted on the end of the elastic wire (53) traversing the throughhole (523), the diameter of the position-limiting block (531) greater than that of the throughhole (523); the window sash fastening block (54) is secured to the window sash (2), and the window frame fastening block (52) is secured to the window frame (1). The device (5) has the advantages of good security, simple structure, low cost and convenient mounting and using.</p> |
