Lifting control device of electric drive airer

Abstract

A lifting control device of an electric drive airer comprises a motor, a transmission mechanism, a rope winding wheel, an upper limit control mechanism and a lower limit control mechanism. The transmission mechanism comprises a worm and a first transmission gear. The diameter of the first transmission gear is smaller than that of the rope winding wheel. The upper limit control mechanism and the lower limit control mechanism each comprise a first contact switch, a pinion, a driving wheel, a regulating wheel, a fixed disc and a spring. The rope winding wheel drives the driving wheels to rotate through the pinions. The driving wheels drive the regulating wheels to rotate through meshing of first meshing threads and second meshing threads. A convex part of each regulating wheel controls a motor to stop. A clamping structure with a through hole and a slot is disposed on a rope winding part. The through hole is formed in the radial direction, and the slot extends circumferentially to be connected with a rope winding groove. Large torque can be output by the small-size motor, and the rope winding wheel can have a smaller diameter and a smaller thickness, so that the whole lifting controldevice is light, thin and small; the limit control mechanisms are simple and compact in structure, convenient to install and easy to adjust; and a clothes airing rope is easy and convenient to installand replace.

Description

technical field [0001] The invention relates to the technical field of clothes drying racks, in particular to a lifting control device for electric clothes drying racks. Background technique [0002] Electric clothes drying racks are widely used because they can be lifted and lowered automatically and are easy to use. One end of the clothesline of the electric clothes rack is connected to the clothesline, the clothes are hung on the clothesline, and the other end of the clothesline is connected to the lifting control device, and the lifting control device controls the lifting of the clothesline, so that the clothesline up or down. The lifting control device generally includes a motor and a rope winding wheel. The clothesline is wound on the rope winding wheel. The motor is connected to the rope winding wheel to drive the rope winding wheel to rotate. During the lifting process, the lifting stroke of the clothesline needs to be controlled. Stop descending when reaching the ...

AI Technical Summary

Problems solved by technology

The use of a small motor can reduce the volume and make the overall structure thinner, but the output torque of the small motor is limited, which will affect the size of the output torque; and thinner also requires the rope wheel to be as thin as possible, such as ensuring the length of the clothesline to be stored To meet the requirements, the diameter of the rope winding wheel must be increased. The miniaturization of the motor and the increase in the diameter of the rope winding wheel will lead to the size of the output torque and the spatial structure layout

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