Ventilator

Abstract

The invention relates to a ventilator. Relates to the technical field of building isolation ventilation. Compared with the prior art, a non-tooth area of a transmission wheel abuts against a first end face of a long-strip-shaped hole of a swing rod, a tooth area hooks the swing rod, the transmission wheel rotates to drive the swing rod to rotate and swing, the other end of the swing rod moves relative to a frame, and rotation between the frame and an opening sash is driven; in addition, through matched transmission of the tooth area and the transmission rack, the opening sash and the frame are in the closed state, the swing rod is hooked to the transmission locking rod, and the swing rod is driven to do linear movement through rotation of the rotating wheel. The swing rod drives the transmission lock rod to move, and unlocking and locking between the drive lock point and the lock seat are achieved. The ventilation opening and closing function and the locking function of the ventilator can be achieved through a set of continuous matching structure of the swing rod and the transmission wheel, the number of parts is reduced, the manufacturing cost is reduced, and operation is more convenient; and in case of power failure or mechanical failure, emergency manual unlocking operation can be performed for opening and closing.

Images