Air guide mechanism of box fan

Abstract

The invention provides an air guide mechanism of a box fan, comprising a synchronous motor which is arranged on a shell, a rotating shaft pin which is arranged on the synchronous motor, an air guide wheel clutch plate, an air guide wheel and an air guide wheel cover, wherein more than two buckling positions are arranged on the shell towards the air guide wheel; an air guide wheel inner ring is arranged at the inner side of the air guide wheel; and the buckling positions are hooked on the air guide wheel inner ring. The buckling positions are in clearance fit with the air guide wheel inner ring, and the clearance is 0.2-0.5mm. More than two convex ribs are arranged on the outer edges of the buckling positions on the shell; the convex ribs support against the air guide wheel; and the convexribs are uniformly distributed. More than one positioning tooth is arranged at the outer side of the air guide wheel clutch plate and is engaged with an annular square tooth at the inner side of the air guide wheel so as to form a clutch mechanism. Compared with the traditional air guide mechanism of the box fan, the invention can reduce parts, has the characteristics of simple and rational structure, stable running of the air guide wheel, low noise and reduction of the damage to the synchronous motor and is convenient and quick for installation.

Description

technical field [0001] The invention relates to a leaf turning fan, in particular to an air guide mechanism of the leaf turning fan. Background technique [0002] The air guide mechanism of the existing leaf turning fan consists of a shell, an air guide wheel, a baffle plate, It is composed of steel ball, spring, hollow pin, synchronous motor, wind deflector pressure plate, wind deflector clutch plate, screws and wind deflector cover. The synchronous motor is fixed on the shell by screws, and the wind deflector clutch plate is closely matched with the synchronous motor through a hollow pin. There are two symmetrical circular holes in the radial direction of the edge of the wind deflector clutch plate, which are used to place springs and The steel ball and the baffle are fixed in the positioning groove on the clutch plate of the wind guide wheel to limit the position Steel ball, the steel ball meshes with the ring-shaped square teeth of the wind deflector to form a clutc...

AI Technical Summary

Problems solved by technology

The wind guide mechanism of the leaf turning fan has the following defects: one, the fixing method of the wind guide wheel is unreliable

Due to the length of the dimensional chain and the cumulative error of manufacturing and assembly, the wind deflector has a small angle of movement and poor stability.

Second, due to the large number of components, the assembly is complicated

Images