Double-section bearing zero-glue bed core

Abstract

The utility model relates to a double-section bearing zero glue bed core, which comprises a cloth bag and a spring wrapped and packaged in the cloth bag, the spring comprises an upper end supporting section and a main body supporting section, and the screw pitch of the main body supporting section is larger than that of the upper end supporting section; the bed core can achieve two kinds of hardness by adopting the spring, when a human body lies on the wound core, the bed core can fit the curve of the human body, and a user can lie flat more comfortably.

Description

Technical Field

[0001] This utility model relates to the field of bed cores, specifically a double-section support zero-glue bed core. Background Technology

[0002] Spring core structures are essential components in the production of mattresses and sofas. A typical spring core structure includes a non-woven fabric cover and several springs. The non-woven fabric cover wraps around the springs, which are vertically arranged and linearly laid out horizontally. Welded separators are provided between adjacent springs in the non-woven fabric cover to separate them. In current spring structures, as shown in Chinese patent document CN202210539040.8, "A glue-free four-leaf clover-shaped pocket spring core and its manufacturing process," the pocket spring consists of a housing and a sealed spring. This structure uses sealed springs with a uniform pitch, thus providing only one level of firmness. When the user lies flat, it is difficult to ensure a full fit with the body's curves, affecting the comfort of the core. Therefore, further improvements to the current core structure are needed. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned existing problems and provide a simple and reasonable double-section support zero-glue bed core.

[0004] The dual-section support zero-glue bed core includes a cloth bag and a spring encapsulated inside the cloth bag. The cloth bag is heat-sealed. The spring includes an upper support section and a main support section, wherein the pitch of the main support section is greater than the pitch of the upper support section.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific embodiment, the length of the main support section should be between one-half and two-thirds of the total length of the spring.

[0007] As a further option, the pitch of both the upper support section and the main support section is set uniformly.

[0008] As a further embodiment, the pitch of both the upper support section and the main support section decreases linearly from the end that is closer to the other end.

[0009] As a further embodiment, the middle width of the outer diameter of the spring is greater than the width at both ends, and the width decreases linearly from the middle to both ends.

[0010] As a further embodiment, the two ends of the spring are bent inward relative to the outermost coil.

[0011] As a further embodiment, the end of the spring has a smooth, rounded structure.

[0012] As a further solution, the pitch of the main body support section is H1, and 40 mm ≤ H1 ≤ 80 mm; the pitch of the upper end support section is H2, and 0 mm < H2 < 40 mm.

[0013] As a further solution, the spring is wound into an olive shape by spring wire, the wire diameter of the spring wire is R1, and 0.5 mm ≤ R1 ≤ 3 mm.

[0014] As a further solution, the outer diameter of the spring is R2, and 40 mm ≤ R1 ≤ 70 mm.

[0015] The beneficial effects of the present utility model are as follows:

[0016] For the double-section supported zero-glue mattress core of the present utility model, when using this type of spring with the same wire diameter of the steel wire, the main body support section is formed with a large pitch, which can make the elastic force greater and the lying feeling harder, while the upper end support section is formed with a small pitch, which can make the elastic force smaller and the lying feeling softer. The spring can achieve two softness and hardness levels, and when a person lies on the mattress core, it can better conform to the body curve, making the user lie flat more comfortably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model.

[0018] Figure 2 It is a schematic diagram of the spring structure of the present utility model Figure 1 .

[0019] Figure 3 It is a schematic top view structural diagram of the spring of the present utility model.

[0020] Figure 4 It is a schematic diagram of the spring structure of the present utility model Figure 2 .

[0021] Figure 5 It is a linear schematic diagram of the pitch and spring height of Embodiment 1 of the present utility model.

[0022] Figure 6 It is a linear schematic diagram of the pitch and spring height of Embodiment 2 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments. Embodiment

[0024] Refer to Figures 1 to 4As shown, the double-segment supported zero-glue mattress core includes a cloth bag 1 and springs 2 encapsulated in the cloth bag 1. The cloth bag 1 is sealed by heat melting. The springs 2 include an upper support segment 21 and a main support segment 22. The pitch of the main support segment 22 is greater than that of the upper support segment 21. And the length of the main support segment 22 occupies one-half to two-thirds of the length of the whole spring 2.

[0025] When this type of spring 2 is used in the mattress core, with the same wire diameter, the main support segment 22 is formed with a large pitch, which can make the elastic force greater and the lying feeling harder. While the upper support segment 21 is formed with a small pitch, which can make the elastic force smaller and the lying feeling softer. The spring 2 can achieve two softness and hardness levels, and when a person lies on the mattress core, it can better conform to the body curve, making the user lie flat more comfortably.

[0026] The pitches of the upper support segment 21 and the main support segment 22 both decrease linearly from the end close to each other to the end far away from each other. In this embodiment, the pitches of the upper support segment 21 and the main support segment 22 are approximately Figure 5 as shown.

[0027] The middle width of the outer diameter of the spring 2 is greater than the widths at both ends, and the width decreases linearly from the middle to both ends. This structure can make the spring have different spring coefficients at different positions, which helps the spring maintain up and down movement when being compressed and is not prone to axial yaw.

[0028] Both ends of the spring 2 are bent inward relative to the outermost coil 23. This structure prevents the spring ends from protruding laterally, avoiding the spring ends from piercing or scratching the side of the cloth bag 1.

[0029] The end of the spring 2 has a smooth round head structure. After the spring 2 is wound and formed by a winding machine, the end 201 of the spring 2 can be processed in subsequent processing to form a smooth round head structure, making the end 201 of the spring 2 no longer sharp. During use, even if the end wire of the spring 2 protrudes outside the spring due to the acting force, the end 201 of this structure helps reduce the risk of piercing or scratching the non-woven fabric cover.

[0030] The pitch of the main support segment 22 is H1, and 40mm ≤ H1 ≤ 80mm. In this embodiment, H1 is approximately equal to 60mm. The pitch of the upper support segment 21 is H2, and 0mm < H2 <  40mm, and H2 is approximately equal to 30mm.

[0031] The spring 2 is wound by spring wire into an olive shape. The wire diameter of the spring wire of the spring 2 is R1. In this embodiment, R1 is approximately equal to 2mm.

[0032] The outer diameter of the spring 2 is R2. In this embodiment, the middle outer diameter R2 of the spring 2 is approximately 65mm, and the outer diameter R2 of the outermost coil of the spring 2 is approximately 55mm.

[0033] In addition, based on the above structure, the height of the spring 2 (when not compressed) is approximately 21cm-22cm. Example

[0034] The difference between Embodiment 2 and Embodiment 1 is that the pitches of the upper support section 21 and the main support section 22 are both uniform. In this embodiment, all pitches have a uniform width, but because the spring 2 extends horizontally at its beginning and end ends to maintain the flatness of the upper and lower end faces, its pitch is approximately... Figure 6 As shown.

[0035] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A double-segment support zero-glue bed core, comprising a cloth bag (1) and a spring (2) encapsulated within the cloth bag (1), wherein the cloth bag (1) is heat-sealed, characterized in that: The spring (2) includes an upper support section (21) and a main support section (22), wherein the pitch of the main support section (22) is greater than the pitch of the upper support section (21).

2. The dual-segment support zero-glue bed core according to claim 1, characterized in that: The length of the main support section (22) should be one-half to two-thirds of the length of the entire spring (2).

3. The dual-segment support zero-glue bed core according to claim 1, characterized in that: The pitch of the upper support section (21) and the main support section (22) is uniform.

4. The dual-segment support zero-glue bed core according to claim 1, characterized in that: The pitch of both the upper support section (21) and the main support section (22) decreases linearly from the end that is closer to the other end.

5. The dual-segment support zero-glue bed core according to claim 1, characterized in that: The outer diameter of the spring (2) has a greater width in the middle than at both ends, and the width decreases linearly from the middle to both ends.

6. The dual-segment support zero-glue bed core according to claim 1, characterized in that: The two ends of the spring (2) are bent inward relative to the outermost coil (23).

7. The dual-segment support zero-glue bed core according to claim 1 or 6, characterized in that: The end of the spring (2) has a smooth, rounded structure.

8. The dual-segment support zero-glue bed core according to claim 1, characterized in that... The pitch of the main support section (22) is H1, and 40mm≤H1≤80mm; the pitch of the upper support section (21) is H1, and 0mm<H2<40mm.

9. The dual-segment support zero-glue bed core according to claim 1 or 5, characterized in that... The spring (2) is made of spring steel wire wound into an olive shape. The wire diameter of the spring (2) is R1, and 0.5mm≤R1≤3mm.

10. The dual-segment support zero-glue bed core according to claim 5, characterized in that... The outer diameter of the spring (2) is R2, and 40mm≤R1≤70mm.

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