Elliptical compression spring structure and upholstered furniture elastic structure thereof

Abstract

The invention relates to the technical field of vibration reduction devices, and discloses an elliptical compression spring structure. According to the elliptical compression spring structure, an elliptical cross section is adopted, the long axis Y of the elliptical cross section is parallel to a compression direction and is used for bearing pressure, the short axis X of the elliptical cross section is used for supporting the stress to the axis Y, and the practical testing shows that the limited compression resistance times of the spring with the elliptical cross section are greater than or equal to 120 thousands, far beyond the industrial level and the national standard, so that the elliptical compression spring structure has the advantages of high compression resistance and high pressure resistance time. The invention further provides the upholstered furniture elastic structure with the elliptical compression spring structure. Due to adoption of a positive-handed spring and a negative-handed spring and an interval arrangement mode, the positive-handed spring and the negative-handed spring are simultaneously stressed when a top plate is stressed, uniform bearing is achieved, the problem of inclined stress is solved in view of a stress structure, a product can be used more comfortably, and the service life of the product is prolonged.

Description

technical field [0001] The invention relates to the technical field of damping devices, in particular to an elliptical compression spring structure and the elastic structure of upholstered furniture. Background technique [0002] Spring is a kind of elastic part that is widely used at present. It is mainly used for shock absorption, clamping, energy storage and measurement. The current springs are mainly divided into compression springs, tension springs, torsion springs and planar scroll springs. Due to the limitations of existing spring manufacturing equipment, the cross-sections of the above-mentioned springs are mainly divided into three types: circular, rectangular and polygonal, wherein the compression spring is a pressure-bearing coil spring, which is generally a circular cross-section. Most of the soft elastic furniture such as mattresses and mattresses use compression springs and sponges for combined structural design, and then form a plane with good elasticity to s...

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Problems solved by technology

[0002] Spring is a kind of elastic part that is widely used at present. It is mainly used for shock absorption, clamping, energy storage and measurement. The current springs are mainly divided into compression springs, tension springs, torsion springs and planar scroll springs. Due to the limitations of existing spring manufacturing equipment, the cross-sections of the above-mentioned springs are mainly divided into three types: circular, rectangular and polygonal, wherein the compression spring is a pressure-bearing coil spring, which is generally a circular cross-section. Most of the soft elastic furniture such as mattresses and mattresses use compression springs and sponges for combined structural design, and then form a plane with good elasticity to support the human body, making people sitting and lying more comfortable; according to the national standard GB / T1239 ordinary cylinder Helical compression springs have a Class A standard compression resistance of 80,000 times. Due to factors such as material and processing technology, most of the existing compression springs are difficult to achieve 80,000 times or just reach 80,000 times. If it fails, the compression spring must be replaced or the product must be scrapped after reaching a certain use time limit. Therefore, the service life of the product is seriously affected. In view of this, the inventor has made an improvement on the current compression spring and applied it to upholstered furniture

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