Patent ID: 11788611

Abstract:
An actuator with a worm gear positioning mechanism, which includes: a shell casing (10); a motor (20) having a worm rod (21); a transmission assembly (30) having a guiding screw rod (31), a worm gear (32) and a bearing (33), the worm gear (32) having an annular member (321) having an inner circumferential surface (322); an outer tube (40) having an outer circumferential surface (41) attached to the inner circumferential surface (322), the worm gear (32) being positioned between the worm rod (21) and the outer tube (40) on a radial direction; and a telescopic tube (50) disposed in the outer tube (40) and having an inner tube (51) and a screw nut (52), the screw nut (52) moveably screwed with the guiding screw rod (31) to make the inner tube (51) linearly movable relative to the outer tube (40).