一种免钉支撑簧及床垫
By using a snap-fit design with nail-free support springs, the problem of increased cost and difficulty associated with traditional support spring connection methods is solved, achieving efficient and stable frame connection, reducing production costs and improving connection strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEKUI NEW MATERIALS (SUZHOU) CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods of connecting support springs to mattress frames require the use of metal sheets and nailing equipment, which increases material and equipment costs and results in insufficient connection strength.
It adopts a nail-free support spring design, which is connected to the mattress frame by snapping on both ends of the torsion spring. The spring body and the elastic force of the force application arm are used to fix it and prevent displacement.
This reduces mattress production costs and complexity, while improving the connection strength and stability between the support springs and the frame, thus preventing displacement issues.
Smart Images
Figure CN224505047U_ABST
Abstract
Claims
1. A staple-free support spring characterized by, include: The torsion spring body has two spring arms whose free ends extend in a straight line along the helical tangent direction to form a first force-applying arm and a second force-applying arm with an included angle. After the end plane of the first force-applying arm is bent to form a first fastening section, it is spiraled in the opposite spiral direction of the torsion spring body to form a first winding portion for connecting the first component. After the end plane of the second force-applying arm is bent to form a second fastening section, it is spiraled in the opposite spiral direction of the torsion spring body to form a second winding portion for connecting the second component.
2. The nail-free support spring according to claim 1, characterized in that: The bent portion of the first fastening section is at least partially fastened to the surface of the first component, and the bent portion of the second fastening section is at least partially fastened to the surface of the second component.
3. The pinless support spring of claim 1 or 2, wherein: The first tightening portion spirally wraps around the first component at least once, and the second tightening portion spirally wraps around the second component at least once.
4. The pinless support spring of claim 1 or 2, wherein: The bending radius between the first force-applying arm and the first fastening section is 2.5-3 mm, and the bending radius between the second force-applying arm and the second fastening section is 2.5-3 mm.
5. The staple-free support spring of claim 1, wherein: The first spiral portion forms a gripping inner diameter of 4-6 mm for the first component, and the second spiral portion forms a gripping radius of 4-6 mm for the second component.
6. The staple-free support spring of claim 1, wherein: The ends of the first winding portion and the second winding portion extend in opposite directions, and the axial distance between the ends of the first winding portion and the second winding portion is 40-50mm.
7. The staple-free support spring of claim 1, wherein: The wire diameter of the torsion spring body is 2-3mm, and the outer diameter of the torsion spring body is 15-25mm.
8. The staple-free support spring of claim 1, wherein: The angle between the first force-applying arm and the second force-applying arm is 140°-150°.
9. The staple-free support spring of claim 1, wherein: The torsion spring body is made of carbon steel with a carbon content of less than 0.8%.
10. A mattress characterized by: Includes the nail-free support spring according to any one of claims 1 to 9.