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source：Qianye Precision time：2022-9-14

All curtain cords, whether installed on the side, caught in curtains, or placed on the back, can be dangerous to children. It is best to replace all corded curtains with cordless curtains in houses where children live or visit, especially in children’s bedrooms and play areas. Cordless roller blinds with either a spring system or an electric system can improve the safety of the home.

Cordless roller blinds with spring system are similar to movie curtains. They use the elasticity of the springs. Under the action of the spring components, the roller blinds can be balanced at any position and can be stopped at any time.

At present, most of the spring components on the market are wire spring cordless curtain systems, which have a relatively short service life and a high degree of force attenuation. When pulling down, the curtain stops at each clip, and when rising, pulling down makes the curtain bounce back to the top, which can only make the curtain go up and down within the range, and cannot make the curtain stop freely at any position. The structure is more complex, and it needs to cooperate with damping and limit devices. When the spring force value is attenuated, the feel of the curtain will change.

The core component of Qianye’s precision-designed spring cordless curtain system is a spring with a negative gradient. Compared with the traditional wire spring cordless curtain system, the advantages are as follows:

1. Lifespan: Compared with traditional wire spring cordless curtains, the lifespan is greatly increased (from 30,000 times), and the force value attenuation (within 10%) is lower than that of the wire spring system.

2. Convenience: simple structure, high stability, no need to install damping device and limit device. The weight of the lower beam is about 250g, which ensures that the pull-down feel is very comfortable.

3. Technology: There are no restrictions on height and width in application, and the accuracy of free movement up and down is within 2mm.

Shenzhen Qianye Precision Metal Co., Ltd. has been engaged in the research of clockwork springs for more than 20 years, and can fully meet and meet the performance requirements of various applications for spring products; Components and springs can be well used in a wide range of applications. We sincerely invite you and our R&D engineer 13827443413 Liu Gong to obtain consulting services and cooperate to produce high-quality products according to your requirements.