WO2013123710A1

WO2013123710A1 - Stacked air belt-type gas spring

Info

Publication number: WO2013123710A1
Application number: PCT/CN2012/074503
Authority: WO
Inventors: 陈阿裕
Original assignee: 喜临门家具股份有限公司
Priority date: 2012-02-21
Filing date: 2012-04-23
Publication date: 2013-08-29

Abstract

A stacked air belt-type gas spring comprising a spring body. The spring body is constituted by stacking multiple hollow annular air belts (1); adjacent air belts (1) are connected via the upper and lower surfaces; the air belts (1) are provided thereon with at least one ventilation hole (2). By filling a pressurized gas to adjust the softness/firmness, the spring solves the shortcomings in metal springs of being easily corroded and of non-adjustable elastic force, provides a large deformation range and great horizontal and vertical ventilations, is applicable in manufacturing mattresses and sofas, while at the same time, allows for convenient adjustments of the softness/firmness, and for real-time adjustments, is convenient to be packaged by being rolled up, and conserves transportation costs.

Description

Airbag stacked gas spring

Technical field

The present invention relates to the field of spring manufacturing technology, and more particularly to an airbag stacked gas spring.

Background technique

The 'spring' can be functionally divided into a compression spring, a torsion spring and a tension spring. A commonly used compression spring is made of a strong elastic wire such as a steel wire which is spirally wound and elastically deformed to generate an elastic force. After the compression spring is formed, the elastic force is not adjustable, and it still occupies a large space after being compressed. When used in a spring mattress or the like, it cannot guarantee satisfactory comfort in each use area. Although some people have designed a gas spring, it is composed of a cylinder, a piston (push rod), an additional built-in spring, etc., and has a complicated structure and high requirements for fitting between parts, in particular, a piston is disposed at an upper and lower ends of a flexible cylindrical barrel. The cavity is formed in the middle to realize the spring effect, but there is a drawback that the upper and lower sides are not ventilated. When it is used for the mattress compression spring, the moisture generated by the human body or the environment will gather, and the air convection cannot be eliminated, and the human body is in the moisture-filled air. Sleeping on the spring mattress will inevitably affect the health of the body; in addition, the gas spring deformation stroke is insufficient, the softness adjustment range is small, and the non-use state still occupies a large space.

technical problem

The object of the present invention is to provide a solution to the above deficiencies of the prior art. The utility model has an airbag stacking type gas spring with adjustable elastic force, good air permeability, long deformation stroke and small space occupied by compression.

Technical solution

In order to achieve the above object, an airbag stacked gas spring designed by the present invention is provided. The utility model comprises a spring body, characterized in that the spring body is composed of a plurality of hollow annular airbags, and the adjacent airbags are connected by upper and lower surfaces, and the airbag is provided with at least one ventilation hole. The technical solution defined by the invention adopts a hollow structure, has good air permeability on the upper and lower sides, is not easy to deposit moisture, and avoids the influence of the accumulated moisture on the human body when the spring is used in a mattress, a sofa, a massage chair, a seat cushion, etc.; can be inflated through a vent hole Or exhaust to adjust the softness (elasticity) of the gas spring in real time, to increase the comfort and application range; the airbag has a simple structure, convenient processing, and easy assembly operation such as stacking; the airbag is free of space after the pressure air is compressed, and can be rolled. Packed for easy packaging, storage and transportation.

As a further refinement and addition to the above structure, the present invention also includes the following additional technical features or any combination of these features:

The airbag is provided with a transverse through hole, and provides a horizontal air convection passage of the gas spring to further increase the ventilation effect.

The transverse through holes are straightly penetrated through the air bag, and when the gas springs are connected in a row or in a row, the corresponding lateral through holes on the adjacent gas springs can communicate to form a transverse gas permeable passage, and the ventilation effect is good.

The upper and lower adjacent airbags are bonded, the operation is simple and fast, and the bonding surface is an annular plane, and the surface connection is stronger than the wire connection.

The upper and lower ends of the spring body are lined with a shaped plate made of steel wire. In the present embodiment, the pressure-proof spring is enhanced by providing a fixed plate, and the plate-like structure is favorable for improving the stability of the gas spring in the vertical direction.

The upper and lower ends of the spring body are lined with a shaped ring made of steel wire, and the shaped ring can also be a hard elastic material such as a copper wire or a plastic ring, preferably a steel wire, which is easy to be restored after being squeezed by an external force because of its good deformation resistance. Good support.

The vent holes are arranged on the same side to facilitate the connection of the pipes of the vent holes, and the length of the pipe is short.

The spring body is sleeved with a fabric cover to fix the airbag and facilitate the connection between the gas springs.

The balloon wall of the airbag is made of a polymer organic material or a composite thereof, and the polymer organic material and the fabric composite means that the polymer organic material is filled in the pores of the fabric or is attached to one side of the fabric. The polymer organic materials here include rubber, TPU, and/or nylon. The polymer material such as rubber can be used to seal the pressure gas, and can be trapped by a trapping agent to improve flexibility and sealing. The shaping action is such that the gas spring does not undergo excessive expansion deformation after the pressurized air is filled, and the chamber wall has sufficient strength.

The height of the cavity column is 4-20cm. If the height is too high, the deformation stroke of the cavity column is too long, unstable, too low, then hard, and the comfort is reduced; the diameter is 4-8.5cm, and if it is too large, it is laid on the cavity column. The fabric will fall into the hollow part and form a pit. If it is too small, the bottom surface will be reduced, unstable, and subject to pressure swing.

Beneficial effect

The airbag stacked gas spring obtained by the invention overcomes the defects that the metal spring is easy to corrode and the elastic force is not adjustable, and overcomes the defect that the piston (push rod) type gas spring has complicated structure and poor air permeability, and is filled by pressure gas. Adjusting its softness and hardness, especially with the advantages of large deformation stroke, good lateral and longitudinal ventilation, used to make soft mattresses, sofas, massage chairs, seat cushions, etc., easy to eliminate moisture and eliminate the impact on human health; soft The hardness adjustment is convenient and the unidirectional deformation range is large, which can meet the needs of various occasions, and can be adjusted in real time to increase the comfort; and the package is convenient, and the transportation cost is saved, and the user can inflate and expand when in use.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a cross-sectional view of Figure 1;

Figure 3 is a plan view of Figure 1.

In the figure: 1-balloon, 2-ventilation, 3-transverse via.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIG. 1 to FIG. 3, an airbag stacked gas spring described in this embodiment, The spring body is comprised, and the spring body is composed of five hollow annular airbags 1 stacked, and the number of the airbags 1 can be determined according to the adjustment of the softness. The adjacent airbags 1 are connected by upper and lower surfaces, and the airbag 1 is provided with a venting hole 2 through which the exhausting and inflating are operated, or two venting holes 2, one inflating, one exhaust. Each of the airbags 1 is provided with a transverse through hole 3, and the two lateral through holes 3 are a pair of straight through the airbag 1 in a straight line along the center line of the airbag. The upper and lower adjacent airbags 1 are bonded, and the bonding faces thereof are annular planes. The upper and lower ends of the spring body are lined with a shaped ring or a shaped plate made of steel wire, which is not shown in the drawing. The vent holes 2 are disposed on the same side. The spring body is sleeved with a fabric cover. The balloon wall of the airbag 1 is made of a polymer organic material or a composite thereof, and the polymer organic material and the fabric composite means that the polymer organic material is filled in the pores of the fabric or attached to the fabric side. . The height of the spring body is 4-20 cm and the diameter is 4-8.5 cm.

Embodiments of the invention

Industrial applicability

Sequence table free content

Claims

An airbag stacking gas spring comprises a spring body, characterized in that the spring body is composed of a plurality of hollow annular airbags (1) stacked, and the adjacent airbags (1) are connected by upper and lower surfaces, The airbag (1) has at least one vent hole (2).
An air bag stacking type gas spring according to claim 1, wherein said air bag (1) is provided with a lateral through hole (3).
An air bag stacking gas spring according to claim 2, wherein said lateral through hole (3) runs straight through the air bag (1).
An airbag stacked gas spring according to any one of claims 1 to 3, characterized in that the upper and lower adjacent airbags (1) are bonded, and the bonding faces thereof are annular planes.
An air bag stacking type gas spring according to claim 4, wherein the upper and lower ends of said spring body are lined with a shaped plate made of steel wire.
An air bag stacking type gas spring according to claim 4, wherein the upper and lower ends of said spring body are lined with a shaped ring made of steel wire.
An air bag stacking gas spring according to claim 6, wherein said vent holes (2) are disposed on the same side.
An air bag stacking gas spring according to claim 7, wherein said spring body is covered with a fabric cover.
An airbag stacking gas spring according to claim 1, wherein the airbag wall of the airbag (1) is made of a polymer organic material or a composite thereof with a fabric, and the polymer organic material is Fabric composite refers to the filling of the polymeric organic material in the pores of the fabric or on the side of the fabric.
An air bag stacking type gas spring according to claim 1, wherein said spring body has a height of 4 to 20 cm and a diameter of 4 to 8.5 cm.