Plastic type curtain balancer and dragging rope-free coiling curtain thereof

Abstract

The invention discloses a plastic type curtain balancer and a dragging rope-free coiling curtain thereof. The plastic type curtain balancer comprises a mounting sleeve, a friction shaft and a friction ring, wherein the mounting sleeve is connected with a curtain rotating shaft; the friction shaft is arranged inside the mounting sleeve; the friction ring is arranged on the friction shaft in a sleeving manner; a friction wall corresponding to the friction ring is arranged on the inner wall of the mounting sleeve; and the periphery of the friction ring props against the friction wall. When the curtain rotating shaft is rotated to drive curtain cloth to move up and down, the friction ring and the friction wall can move relative to each other so as to generate friction force; being different from a conventional dragging rope-free curtain which has the characteristics that the elastic force of a spring and the weight difference between curtain cloth and a hanging part needs to be strictly controlled, the plastic type curtain balancer is convenient for large-scale popularization as the production and processing difficulties of the dragging rope-free coiling curtain are reduced.

Description

technical field [0001] The invention relates to a roll-up curtain, in particular to a plastic curtain balancer and a drawstring-free roll-up curtain. Background technique [0002] General curtains can be divided into cord-drawn and cordless in structure. Among them, cord-drawn curtains mainly use a cord to drive the curtain body to unfold or collapse, and cordless curtains are Use the hand to apply upward or downward force on the bottom of the curtain body, and cooperate with the drive of a transmission mechanism, so that the curtain body can also achieve the effect of unfolding or retracting. The main structure of the existing drawstring-free window curtain is as follows, including a reel, a curtain, and a return spring, wherein the rolling strength of the return spring is equal to the weight of the curtain, so that upward or downward pressure can be applied under the curtain body by hand. The force moves the curtain up or down. In the production process, it is necessary ...

AI Technical Summary

Problems solved by technology

In the production process, it is necessary to continuously select and adjust the elastic force of the return spring to match the curtains of different lengths, thicknesses, and materials. When the elastic force of the return spring is small, the curtain will automatically move down. When the elastic force of the return spring is large , the curtain moves up automatically, and it is impossible to hover at any position

And the processing precision of each spare parts is required to be high, otherwise, when the transmission force of each spare parts changes after long-term use, the above problems will also be caused

To sum up, the current production and processing of cordless curtains is difficult and costly, and cannot be popularized on a large scale.

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