High-resilience type spring steel wire structure for spring washer
By using a double-layer high-carbon steel wire structure, the problem of fatigue resistance of the elastic pads under long-term compression is solved, achieving high resilience and improved durability, and reducing the risk of abnormal noise and collapse.
Patent Information
- Application Number
- CN202520717478.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing single-layer spring steel wire winding structure of the spring pad has reduced fatigue resistance when subjected to repeated compression deformation over a long period of time, and is prone to local collapse and abnormal noise, resulting in insufficient durability.
It adopts a double-layer high-carbon steel wire structure, with left-handed outer cylindrical helical spring and right-handed inner cylindrical helical spring welded together to form a high-resilience helical spring unit, and through matrix arrangement and steel wire fixation, it constitutes a high-resilience spring steel wire structure.
It improves the spring's resilience and durability, suppresses localized collapse and abnormal noise, maintains structural flatness and balanced stress, and extends service life.
Smart Images
Figure CN223953145U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of spring steel wires, in particular to a high-resilience spring steel wire structure for a spring pad. BACKGROUND
[0002] The core support structure of a spring pad is composed of a large number of springs, which become the main material for manufacturing the spring pad. Carbon spring wires disperse pressure through elastic deformation, provide uniform support, and quickly rebound after pressure release to maintain the shape of the spring pad. Since the spring pad needs to bear load for a long time, the durability and resilience of the spring wire become key factors. However, the spiral spring formed by winding a single layer of spring wire into a core support structure of the spring pad bears repeated compression deformation for a long time, and the anti-fatigue performance decreases, which easily causes local collapse and abnormal noise. CONTENT OF THE INVENTION
[0003] The application aims to solve the technical problems of the prior art, and provides a high-resilience spring steel wire structure for a spring pad, which optimizes the spring wire structure, has high resilience, is not easy to deform under long-term repeated compression, suppresses local collapse, eliminates abnormal noise, and has better durability.
[0004] The application solves the above technical problems through the following technical solutions.
[0005] The high-resilience spring steel wire structure for a spring pad comprises a left-handed outer cylindrical spiral spring formed by winding a high-carbon steel wire and a right-handed inner cylindrical spiral spring, the right-handed inner cylindrical spiral spring is sleeved inside the left-handed outer cylindrical spiral spring and is welded and fixed into a high-resilience spiral spring unit, the two ends of the left-handed outer cylindrical spiral spring are flush with the two ends of the right-handed inner cylindrical spiral spring, the wire diameter of the right-handed inner cylindrical spiral spring is smaller than the wire diameter of the left-handed outer cylindrical spiral spring, a plurality of high-resilience spiral spring units are arranged in a matrix to form a high-resilience spring steel wire structure, and the adjacent high-resilience spiral spring units are fixed together by steel wires.
[0006] Preferably, the lengths of the left-handed outer cylindrical spiral spring and the right-handed inner cylindrical spiral spring are both 10 mm to 50 mm.
[0007] Preferably, the outer diameter of the right-handed inner cylindrical spiral spring is 2 mm to 12 mm.
[0008] Preferably, the wire diameter of the left-handed outer cylindrical spiral spring is 0.5 mm to 2 mm.
[0009] Preferably, the difference between the inner diameter of the left-handed outer cylindrical spiral spring and the outer diameter of the right-handed inner cylindrical spiral spring is not more than 0.1 mm.
[0010] Preferably, the ratio of the wire diameter of the right-handed inner cylindrical spiral spring to the wire diameter of the left-handed outer cylindrical spiral spring is 0.7:1 to 0.95:1.
[0011] Advantages of the present application:
[0012] 1. The high-resilience type spiral spring unit is formed by winding a double-layer high-carbon steel wire structure, the left-handed outer cylindrical spiral spring and the right-handed inner cylindrical spiral spring constituting the high-resilience type spiral spring unit are welded into an integrated structure, have high resilience, stronger energy storage capacity per unit volume, multiple high-resilience type spiral spring units are arranged in a matrix type to form a high-resilience type spring wire structure, have stronger supporting force, inhibit local collapse, have high strength, high elasticity, are not easy to deform under long-term repeated compression, and have better durability.
[0013] 2. The left-handed outer cylindrical spiral spring and the right-handed inner cylindrical spiral spring constituting the high-resilience type spiral spring unit are welded and fixed into an integrated structure, reduce friction between the inner and outer spring wires, reduce noise and abnormal sound, at the same time, the high-resilience type spiral spring units are fixed together by steel wires, keep the structure flat, balance the stress, and prevent friction between the high-resilience type spiral spring units, which helps to reduce noise and abnormal sound. BRIEF DESCRIPTION OF DRAWINGS
[0014] The following drawings are intended to facilitate the description of the preferred embodiments and do not constitute a limitation on the scope of protection of the present application.
[0015] Figure 1 is a structural schematic diagram of an embodiment of the present application;
[0016] Figure 2 is a structural schematic diagram of a high-resilience type spiral spring unit of an embodiment of the present application.
[0017] In the figure: 1 - left-handed outer cylindrical spiral spring, 2 - right-handed inner cylindrical spiral spring, 3 - high-resilience type spiral spring unit, 4 - steel wire. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the present application clearer and more apparent, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0019] As Figure 1 and Figure 2As shown, the high-resilience spring wire structure for the cushion of the embodiment of the present application comprises a left-handed outer cylindrical spiral spring 1 formed by winding a high-carbon steel wire and a right-handed inner cylindrical spiral spring 2, the right-handed inner cylindrical spiral spring 2 is sleeved inside the left-handed outer cylindrical spiral spring 1 and is welded and fixed to form a high-resilience spiral spring unit 3. The inner diameter of the left-handed outer cylindrical spiral spring 1 and the outer diameter of the right-handed inner cylindrical spiral spring 2 differ by no more than 0.1 mm. The two ends of the left-handed outer cylindrical spiral spring 1 are flush with the two ends of the right-handed inner cylindrical spiral spring 2, and the lengths of the left-handed outer cylindrical spiral spring 1 and the right-handed inner cylindrical spiral spring 2 are both 10 mm to 50 mm. Specifically, the wire diameter of the left-handed outer cylindrical spiral spring 1 is 0.5 mm to 2 mm. The wire diameter of the right-handed inner cylindrical spiral spring 2 is smaller than that of the left-handed outer cylindrical spiral spring 1, and further, the ratio of the wire diameter of the right-handed inner cylindrical spiral spring 2 to that of the left-handed outer cylindrical spiral spring 1 is 0.7:1 to 0.95:1. The outer diameter of the right-handed inner cylindrical spiral spring 2 is 2 mm to 12 mm.
[0020] The high-resilience spiral spring units 3 are arranged in a matrix to form a high-resilience spring wire structure, and the adjacent high-resilience spiral spring units 3 are fixed together by steel wires 4.
[0021] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A high-resilience spring wire structure for a cushion, characterized by: The high-resilience type spring unit (3) is formed by winding a left-handed outer cylindrical spiral spring (1) and a right-handed inner cylindrical spiral spring (2) with high-carbon steel wires, the right-handed inner cylindrical spiral spring (2) is sleeved inside the left-handed outer cylindrical spiral spring (1) and is welded and fixed, the two ends of the left-handed outer cylindrical spiral spring (1) are flush with the two ends of the right-handed inner cylindrical spiral spring (2), the wire diameter of the right-handed inner cylindrical spiral spring (2) is smaller than that of the left-handed outer cylindrical spiral spring (1), and a plurality of high-resilience type spring units (3) are arranged in a matrix type to form a high-resilience type spring wire structure, and adjacent high-resilience type spring units (3) are fixed together through steel wires (4).
2. The high-resilience spring wire structure for a cushion according to claim 1, characterized by: The length of the left-handed outer cylindrical spiral spring (1) and the right-handed inner cylindrical spiral spring (2) is 10mm to 50mm.
3. The high-resilience spring wire structure for a cushion according to claim 1, characterized by: The outer diameter of the right-handed inner cylindrical spiral spring (2) is 2mm to 12mm.
4. The high-resilience spring wire structure for a cushioning pad according to claim 1, characterized by: The wire diameter of the left-handed outer cylindrical spiral spring (1) is 0.5mm to 2mm.
5. The high-resilience spring wire structure for a cushion according to claim 1, characterized by: The difference between the inner diameter of the left-handed outer cylindrical spiral spring (1) and the outer diameter of the right-handed inner cylindrical spiral spring (2) is not more than 0.1mm.
6. The high-resilience spring wire structure for a cushion according to claim 1, characterized by: The ratio of the wire diameter of the right-handed inner cylindrical spiral spring (2) to the wire diameter of the left-handed outer cylindrical spiral spring (1) is 0.7:1 to 0.95:1.