Improved type throttle valve capable of improving valve sticking and clamping

The utility model discloses an improved type throttle valve capable of improving valve sticking and clamping. The improved type throttle valve capable of improving valve sticking and clamping comprises a throttle valve body (3), a throttle valve shaft (5), a throttle valve plate (4), a rotating frame assembly (8), a torsion spring (1), a position sensor (10), a stepping motor (9), an idling valve seat (7) and an idling adjusting screw (13). A clamping ring (6) is arranged on the inner side of a bearing (2a), and the matching part of a central hole of the throttle valve body (3) and the throttle valve plate (4) and the matching part of the throttle valve shaft (5) and a shaft hole of the throttle valve body (3) are coated with molybdenum disulfide layers (15). The improved type throttle valve capable of improving valve sticking and clamping has the advantages that the outer diameter of the throttle valve plate is reduced, the matching clearance of the throttle valve plate and the central hole of the throttle v