Air volume measurement sensor rotary positioning device for UL standard ceiling fan air volume chamber

The utility model discloses an air volume measuring sensor rotary positioning device for an air volume chamber of a UL standard ceiling fan. An air cylinder is arranged in a first rotating mechanism;the first driving gear can be driven to move up and down through working of the cylinder; then a first fine adjustment positioning mechanism is arranged, a rotating handle can be manually rotated, therotating handle drives a second driving gear to rotate to drive a first rotating gear to rotate until the air volume measuring sensor body is moved to a proper position, and the fine adjustment positioning effect on the X-axis plane and the Y-axis plane is achieved; a second fine adjustment positioning mechanism is arranged; the first screw and the second screw can be rotated; the first screw andthe second screw can move up and down in the first fixing pipe and the second fixing pipe, so that the first screw and the second screw drive the first fixing block and the second fixing block to move up and down, the second r