When taking the high-speed railway, everyone should like to look at the scenery outside the window. I don’t know if you have paid attention to the curtains on the bullet train. When I take the bullet train, I often find that there is no buckle on the curtain slide rail on the bullet train, but I can still go up and down freely and won’t fall or bounce back. That is to say, when I pull down 1 / 3, it will stop at 1 / 3, and when I pull down half, it will stop at half; If you want to put it away, just push it up and stop where you push it? It’s different from the curtains I usually see at home. Isn’t it affected by gravity?
With this curiosity, let me show you that the bullet train should be a spring roller shutter. The elasticity of the spring roller shutter can adjust the rise and fall of the fabric within a certain range and can stop at any position. Gently pull down and let go. The fabric can bounce back to the top of the curtain leisurely and freely. The operation is light, the operation time is short, and the stay position is arbitrary. Compact structure, flexible and convenient operation.
Because the addition of variable force spring makes the roller shutter achieve this effect, many variable force springs on the market can not achieve the effect that the force is changing in any section, so many electric roller blinds will add some components (deceleration device, damping device, this wheel device, limit device, etc.) to achieve the effect of perfect lifting, free positioning and free pause.
Compared with the ordinary electric curtain system on the market, our advantages are as follows:
1. Service life: the service life is greatly increased and the attenuation degree of force value is less than 10%.
2. Convenience: simple structure and high stability.
3. Technology: there are no restrictions on height and width.
Qianye 정밀도 often contacts with some foreign curtain industries, especially in cordless curtains and roller blinds, which has solved the problems and pain points in the traditional use of lifting system, and better solved the problems of free positioning and free pause in the traditional lifting system. Any questions about traditional roller shutter can contact us!
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![[Qianye precision]Benefits of choosing custom springs](https://wp-static-chuangli.oss-us-west-1.aliyuncs.com/qianyespring/uploads/2022/09/cd0d165e9302c73978d21d8cbf01c48a.jpg "[Qianye precision]Benefits of choosing custom springs")
