Torsion-reeled differential type awning curtain or rolling curtain

Abstract

The invention discloses a torsion-reeled differential type awning curtain or rolling curtain which comprises an outer pipe, a piece of curtain cloth and a traction rod, wherein the outer pipe is reeled on the outer pipe and spread from the outer pipe, and the traction rod is connected with the lower edge of the curtain cloth, wherein each of the two ends of the outer pipe is provided with a retractor; a guiding device is arranged below each retractor; an inner pipe which can rotate freely in the outer pipe is arranged inside the outer pipe; a tubular motor capable of driving the inner pipe to rotate is arranged inside the inner pipe; the outer wall of the inner pipe is provided with at least one tubular spring for tightening the part between the outer pipe and the curtain cloth; and the tubular spring is indirectly or directly connected with the inner wall of the outer pipe. According to the torsion-reeled differential type awning curtain or rolling curtain, the tubular spring is arranged after being pre-tightened, therefore, when reeling or unreeling is carried out, the tubular spring is in a work state and outputs certain torsion to tighten the part between the outer pipe and the curtain cloth, and the curtain cloth can be conveniently reeled or unreeled smoothly. Therefore, the torsion-reeled differential type awning curtain or rolling curtain can be applied widely as the awning curtain or the rolling curtain.

Description

technical field [0001] The invention relates to the field of sunshade equipment, in particular to torsion coiling differential speed canopy curtain sunshade equipment and torsion coiling differential speed roller blind sunshade equipment. Background technique [0002] There are many types of canopy blinds on the market: [0003] Electric Tension Type Canopy Shade (FTS for short): The motor has a separate brake coil, which can be controlled separately to achieve series operation. The "Puzhu" motor acts as a brake during the series operation. The electronic control box outputs an adjustable voltage and short-circuits the two coils of the motor. The voltage range is 40V~130VAC, which can be controlled by an adjustable potentiometer. Running, the series moves forward. At this time, the auxiliary motor brake is released, but a reverse pulling force is generated to balance the series. After the stop command is used or the running reaches the limit, the system stops, and the final...

AI Technical Summary

Problems solved by technology

[0008] FTS canopy curtain needs to rely on the mutual cooperation of two motors to realize the tension of the curtain. The electric control system is complicated, and it needs 2 motors and other rotating accessories, and the cost is relatively high.

At the end of the operation, due to the action of the motor, the curtain will loosen first and then be tightened. It appears that the curtain is beating, which gives people a bad vision

[0009] FSS canopy curtain needs to rely on a motor and a spring to be placed at both ends of the canopy curtain respectively. When the curtain is stretched, the spring must be tightened. The stretching length of the canopy curtain is limited by the number of torsion turns of the spring, which is severely limited. The scope of use of the canopy curtain

And the number of torsion turns of the spring increases with the stretching of the cord, the output torque also increases, and the tensile strength of the cord also increases, so that the extension length of the FSS canopy curtain is also limited by the tensile strength of the cord

[0010] FCS canopy curtains need to use one motor and multiple sets of fabric support rods, and the curtain fabrics require multi-process processing, which is complex in composition and high in cost

Moreover, FCS has the defects of light leakage and the curtain cannot be completely retracted. When there is wind, the curtain fluctuates with the wind, and the visual effect is not good.

[0011] PTS canopy curtains need to use 1, 2 or 4 motors, rails on both sides and multiple sets of cross bars. The curtain fabric needs to be processed in multiple processes, with complex composition and high cost

Moreover, FCS has the defects of light leakage and the curtain cannot be completely retracted. When there is wind, the curtain fluctuates with the wind, and the visual effect is not good.

Images