Electric actuator and manual adjustment mechanism thereof

摘要

An electric actuator includes: an actuating shaft and a screw rod screwed to and driving the actuating shaft; a motor connecting the screw rod; a connection seat connecting the actuating shaft and including a positioning post and a rotary shaft; a coupling ring sleeved around and rotating with the positing post, and a slide slot disposed out of the coupling ring; a support ring sleeved around the rotary shaft; a cylindrical connector sleeved around the support ring and screwed to a hinge end cap and with a locking slot communicating with the slide slot and disposed out of the cylindrical connector; a knob sleeved around the cylindrical connector and the coupling ring and covering the rotary shaft, and a raised rib slidably connected to the slide slot and the locking slot and disposed in the knob.

主权项

1. An electric actuator, comprising:
an actuating mechanism (100) including an actuating shaft (120) and a screw rod (130) screwed to and driving the actuating shaft (120); a motor (200) connecting and driving the screw rod (130); and a manual adjustment mechanism (300) including a connection seat (310), a coupling ring (320), a support ring (330), a cylindrical connector (340), and a knob (360), the connection seat (310) connected to the actuating shaft (120), the connection seat (310) including a positioning post (314) and a rotary shaft (315) axially extending from the positing post (314), the coupling ring (320) sleeved around and rotating with the positing post (314), a slide slot (322) disposed on the external peripheral wall of the coupling ring (320), the support ring (330) sleeved around the rotary shaft (315), one end of the cylindrical connector (340) sleeved around the support ring (330), the other end of the cylindrical connector (340) screwed to a hinge end cap (350), a locking slot (343) communicating with the slide slot (322) and disposed on the external peripheral wall the cylindrical connector (340), the knob (360) sleeved around the cylindrical connector (340) and the coupling ring (320) and covering the rotary shaft (315), a raised rib (361) slidably connected to the slide slot (322) and the locking slot (343) and disposed on the internal wall of the knob (360), whereby the coupling ring (320) can be selected to move together with or move separately with the cylindrical connector (340) by means of an axial movement of the knob (360).