Window blind rotation sub-mechanism and timing control slider system comprising same

Abstract

The invention discloses a window blind rotation sub-mechanism comprising a housing formed by fastening a base and a top cover together. The housing is penetrated by a master drive shaft of a window blind. The base is provided with a gear clutch, a ladder tape front cable slider, a front and rear cable slider drive screw and a ladder tape rear cable slider, which are all penetrated by the master drive shaft in order. The front and rear cable slider drive screw which is hollow is in transmission connection with the gear clutch. The front and rear cable slider drive screw is provided with two thread segments having opposite spiral directions. The ladder tape front cable slider and the ladder tape rear cable slider are connected to the two thread segments of the front and rear cable slider drive screw respectively in a threaded manner. The invention further discloses a timing control slider system comprising the window blind rotation sub-mechanism. The assembly of the sliders and screw replaces the traditional reel or rotating drum to allow slats of a fixed pitch or variable pitch window blind to rotate, the radial size can be reduced greatly, and the window blind rotation sub-mechanism and even whole motion control process are more ingenious and compact.

Description

technical field [0001] The invention relates to a shutter movement control mechanism, more specifically, it relates to a shutter turning mechanism and a timing control slide block system using the mechanism. Background technique [0002] The flipping of the louvers of the blinds has always been achieved by the rotation of the roller or the turning cylinder. At present, the transmission mechanism of the fixed-pitch blinds is driven by a hexagonal shaft, two or more rollers with two annular grooves, and a The hexagonal shaft passes through more than two reels and the drive box, and the hexagonal shaft can be rotated by pulling the bead chain or rotating the rocker or pressing the remote control to drive the reel rotate. The upper end of the lifting rope is fixed on the reel in an annular groove on the reel, the lower end of the lifting rope is connected to the bottom rail of the blind, and the two upper ends of the ladder belt are wrapped around the reel in another annular gr...

AI Technical Summary

Problems solved by technology

However, since the reel must ensure the number of turns of the hoisting rope, the outer diameter of the reel cannot be reduced. As a result, the shape of the top rail of the fixed-pitch blinds on which the reel is installed is bloated

The Chinese invention patent whose publication number is CN102839909A further improves the Chinese invention patent whose publication number is CN101818616A, and proposes the concept of variable-pitch shutters. The reel mechanism and reel system related to this variable-pitch louver are disclosed. The publication number is CN102839907A. The Chinese invention patent application discloses a slider mechanism and a slider system related to this variable-pitch louver. These mechanisms and systems are equipped with turning cylinders. , the rotation angle of the tumbler is limited by the structure, so the outer diameter of the tumbler cannot be reduced, which has the same defect as the roller of the fixed-pitch shutter

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