Well smooth transmission

The utility model relates to a well smooth transmission, hold from latch fitting, well smooth transmission box, well slide -bar including well smooth gear frame, well smooth driving cog, well cunning, well smooth gear frame, well smooth driving cog, well cunning are held and are connected gradually from latch fitting, well slide -bar, and the setting is in well smooth transmission box. The utility model discloses a well smooth transmission, the tripe is opened and closes in the setting and the rack cooperation of hypodontia wheel. Realize two functions of a handle. The decline of can rising again can the switch tripe. 本实用新型涉及种中滑传动装置，包括中滑传动架、中滑传动齿、中滑自锁件、中滑传动盒、中滑轴承，所述中滑传动架、中滑传动齿、中滑自锁件、中滑轴承依次连接，设置在中滑传动盒里。本实用新型公开的中滑传动装置，缺齿轮的设置，和齿条配合打开和关闭百叶。实现个把手两个功能。既能上升下降，又能开关百叶。