| 摘要 |
The present invention pertains to the technical category of a window opening and closing device, more particularly it relates to an improved structure of window operator, comprising a case body. On the case body is fixedly disposed with a threaded shaft, which is successively disposed with a long rod and a gear from bottom to top. On the case body is also disposed with a worm, which is cooperatively connected with the gear. On one end of the gear arm is disposed with gear teeth. The gear arm engaging with the gear is located in the same horizontal plane as the gear. The other end of the gear arm is riveted on a short rod. The diameter of the threaded shaft is smaller than the inner diameter of the gear. The gear is cooperatively connected with the threaded shaft via a shaft sleeve thereof. In this invention, the threaded shaft is no longer located in the fixed connecting portion. When the window operator provided by the invention is fixedly mounted, there is no gap present on the case body at the connecting part. It effectively overcomes the leaking problem that rainwater leaks from the gap. Moreover, the threaded shaft does not directly contact with the frequently rotating gear any more so that it is unlikely to come off. Consequently the overall quality of the window operator provided by the invention is substantially improved. |
