A bed core structure for increasing the height and stability of the bed core

Abstract

A bed core structure for increasing the height and stability of the bed core, belonging to the technical field of bed core structures; the total height of the spring group is 24 cm, and the double-layer spring design achieves better stability and comfort during use. There are screw-through springs between the spring coils at both ends of adjacent spring groups and between the spring coils of the upper spring and the lower spring, so that the overall spring bed core does not shake or displace; the number of coils of the lower spring is 5, and the number of coils of the upper spring is 4. The optimal height of the lower spring is 14 cm, and the optimal height of the upper spring is 10 cm, achieving the best effects of comfort, stability, and flexibility in the present invention. Its bearing capacity is also significantly improved, the elastic strength is increased, the spring is less likely to be damaged, and the service life is longer; the left circular torsion spring and the right circular torsion spring are both arranged inside the spring group. Such a structural design ensures that when pressure is applied from the upper part of the mattress, it does not squeeze outwards but extends into the mattress, achieving the effect of no edge collapse.

Description

Technical Field

[0001] The present invention belongs to the technical field of mattress core structures, and particularly relates to a mattress core structure for increasing the height and stability of a mattress core. Background Art

[0002] Existing spring mattresses usually consist of a spring skeleton and a covering layer, and the spring skeleton is encapsulated by the covering layer. The existing spring skeleton mainly consists of a perimeter wire and a spring layer surrounded by the perimeter wire. The perimeter wire forms a closed perimeter, and the shape of the perimeter is usually rectangular. The above-mentioned spring layer is generally composed of multiple rows of spring groups arranged side by side horizontally. Each spring group consists of multiple springs. Springs in the same group are connected in series by similar connectors such as stringers, and the springs on the periphery are connected to the perimeter by similar connectors such as stringers. In existing spring mattresses, the springs provided are in one layer, with poor elasticity. The spring skeleton is prone to deformation and collapse, the service life of the mattress is short, and it is easy to cause human body damage after long-term use by users. Moreover, the height of the existing mattress springs is relatively low, resulting in insufficient support for the single-layer springs. Summary of the Invention

[0003] The present invention mainly solves the technical problems existing in the above-mentioned prior art, and provides a mattress core structure for increasing the height and stability of a mattress core.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions: A bed core structure for increasing the height and stability of the bed core, including a spring bed core and a covering layer. The spring bed core is composed of a number of spring groups connected in parallel. Each spring group includes a lower-layer spring and an upper-layer spring. The upper-layer spring is arranged above the lower-layer spring. Both the upper-layer spring and the lower-layer spring are concave spiral springs. Between the spring coils at both ends of adjacent two spring groups and between the spring coils of the upper-layer spring and the lower-layer spring, there are screw-through springs. Between the spring coils at both ends of adjacent two spring groups and between the spring coils of the upper-layer spring and the lower-layer spring, they are connected and knotted through the screw-through springs. On the frame around the spring bed core and on the outside of the lower-layer spring, there are a number of supporting springs lapped. The supporting springs include a left circular torsion spring and a right circular torsion spring. On the upper side of the left circular torsion spring, there is an upper left spring rod connected to it. On the lower side of the left circular torsion spring, there is a lower left spring rod connected to it. On the upper side of the right circular torsion spring, there is an upper right spring rod connected to it. On the lower side of the right circular torsion spring, there is a lower right spring rod connected to it. Horizontally between the upper ends of the upper left spring rod and the upper right spring rod, there is an upper support rod. Horizontally between the lower ends of the lower left spring rod and the lower right spring rod, there is a lower support rod. Between the upper left spring rod and the upper support rod, between the upper right spring rod and the upper support rod, between the lower left spring rod and the lower support rod, and between the lower right spring rod and the lower support rod, they are all bent at a 90-degree angle. The upper left spring rod and the upper right spring rod have the same length. The lower left spring rod and the lower right spring rod have the same length. Between the upper left spring rod and the lower left spring rod, there is a V-shaped angle. Between the upper right spring rod and the lower right spring rod, there is a V-shaped angle. The included angle between the upper left spring rod and the lower left spring rod is equal to the included angle between the upper right spring rod and the lower right spring rod. The connection points between the upper left spring rod and the upper support rod, between the upper right spring rod and the upper support rod, between the lower left spring rod and the lower support rod, and between the lower right spring rod and the lower support rod are all connected with arc transitions. The left circular torsion spring and the right circular torsion spring are arranged side by side in the same direction. The left circular torsion spring and the right circular torsion spring are both arranged inside the spring group. The upper support rod is knotted to the front side of the upper spring coil of the lower-layer spring through a screw-through spring. The lower support rod is knotted to the front side of the lower spring coil of the lower-layer spring through a screw-through spring. The covering layer wraps around the whole outside of the spring bed core. Above the upper-layer spring and on the four sides of the upper surface of the covering layer, there is a circle of double-layer edging.

[0005] Preferably, the height of the spring group is 26 cm, the height of the lower-layer spring is 14 - 17 cm, the height of the upper-layer spring is 9 - 12 cm, the number of coils of the lower-layer spring is 5, and the number of coils of the upper-layer spring is 4.

[0006] Preferably, the height of the lower spring is 15 cm, and the height of the upper spring is 11 cm.

[0007] Preferably, the wire diameters of the upper spring and the lower spring are both 2 - 2.4 mm.

[0008] Preferably, the wire diameters of the upper spring and the lower spring are both 2.2 mm.

[0009] Preferably, the middle waist diameters of the upper spring and the lower spring are 48 - 55 mm.

[0010] Preferably, the middle waist diameters of the upper spring and the lower spring are both 53 mm.

[0011] Preferably, the number of the spring groups is 410 - 510.

[0012] Preferably, the number of the spring groups is 440.

[0013] The beneficial effects of the present invention are as follows: Through the heights of the upper spring and the lower spring, the total height of the spring group is 24 cm. The number of turns of the lower spring is more than that of the upper spring. The double-layer spring design realizes better stability and comfort during use. Between the ends of adjacent two spring groups and between the turns of the upper spring and the lower spring, there are screw-through springs, making the spring bed core not shake or displace as a whole; the number of turns of the lower spring is 5, the number of turns of the upper spring is 4, the optimal height of the lower spring is 16 cm, and the optimal height of the upper spring is 12 cm, achieving the best effects of comfort, stability, and flexibility of the present invention. Its bearing capacity is also significantly improved, the elastic strength is increased, the spring is less likely to be damaged, and the service life is longer; the connection between the left circular torsion spring, the right circular torsion spring, the upper left spring rod, the lower left spring rod, the upper right spring rod, the lower right spring rod, the upper support rod, and the lower support rod forms an integral annular structure, achieving the effect of enhancing the overall strength; the upper support rod and the lower support rod evenly distribute the pressure to the left circular torsion spring and the right circular torsion spring, achieving the effect of uniform pressure support; the upper left spring rod and the upper support rod, the upper right spring rod and the upper support rod, the lower left spring rod and the lower support rod, and the lower right spring rod and the lower support rod are all bent at 90 degrees. The left circular torsion spring and the right circular torsion spring are arranged side by side in the same direction, and the left circular torsion spring and the right circular torsion spring are both arranged inside the spring group. Such a structural design ensures that when pressure is applied from the upper part, the left circular torsion spring and the right circular torsion spring will not extrude and protrude outward, but extend into the mattress, achieving the effect of not collapsing at the edge and preventing the left circular torsion spring and the right circular torsion spring from rubbing and wearing the side outer cover of the mattress; through experiments, the present invention can pass the 100,000 - time loading compression fatigue test, and after the test, the present invention is intact without deformation; there is a double - layer border around the four sides of the upper side of the coating layer. Compared with the existing single - layer coating edge, the double - layer border makes the coating layer more durable and the appearance more beautiful and generous. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an overall structural schematic diagram of the present invention;

[0015] Figure 2 is a front - view partial structural schematic diagram of the spring bed core of the present invention;

[0016] Figure 3 is a side - view partial structural schematic diagram of the spring bed core of the present invention;

[0017] Figure 4 is a three - dimensional structural schematic diagram of the support spring of the present invention;

[0018] Figure 5 is a front - view structural schematic diagram of the support spring of the present invention;

[0019] Figure 6It is a schematic side view structure diagram of the support spring of the present invention;

[0020] Figure 7 It is a schematic structure diagram of the spring mattress core and the covering layer of the present invention.

[0021] In the figure: 1. Spring mattress core; 2. Covering layer; 3. Spring group; 4. Lower layer spring; 5. Upper layer spring; 6. Screw-through spring; 7. Support spring; 8. Left circular torsion spring; 9. Right circular torsion spring; 10. Upper left spring rod; 11. Lower left spring rod; 12. Upper right spring rod; 13. Lower right spring rod; 14. Upper support rod; 15. Lower support rod; 16. Arc transition connection; 17. Double-layer edge. Specific embodiments

[0022] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] Embodiment: A mattress core structure for increasing the height and stability of the mattress core, as Figures 1-7As shown, it includes a spring mattress core and a covering layer. The spring mattress core is composed of several spring groups connected in parallel. Each spring group includes a lower-layer spring and an upper-layer spring. The upper-layer spring is arranged above the lower-layer spring. Both the upper-layer spring and the lower-layer spring are concave spiral springs. Between the coil rings at both ends of adjacent spring groups and between the coil rings of the upper-layer spring and the lower-layer spring, there are screw-through springs. The coil rings between the two ends of adjacent spring groups and between the coil rings of the upper-layer spring and the lower-layer spring are connected and knotted through the screw-through springs. There are several support springs lapped on the outer side of the lower-layer springs on the frame around the spring mattress core. Each support spring includes a left circular torsion spring and a right circular torsion spring. On the upper side of the left circular torsion spring, there is an upper left spring rod connected to it. On the lower side of the left circular torsion spring, there is a lower left spring rod connected to it. On the upper side of the right circular torsion spring, there is an upper right spring rod connected to it. On the lower side of the right circular torsion spring, there is a lower right spring rod connected to it. Horizontally between the upper ends of the upper left spring rod and the upper right spring rod, there is an upper support rod. Horizontally between the lower ends of the lower left spring rod and the lower right spring rod, there is a lower support rod. Between the upper left spring rod and the upper support rod, between the upper right spring rod and the upper support rod, between the lower left spring rod and the lower support rod, and between the lower right spring rod and the lower support rod, they are all bent at a 90-degree angle. The upper left spring rod and the upper right spring rod are of the same length. The lower left spring rod and the lower right spring rod are of the same length. There is a V-shaped angle between the upper left spring rod and the lower left spring rod. There is a V-shaped angle between the upper right spring rod and the lower right spring rod. The included angle between the upper left spring rod and the lower left spring rod is equal to the included angle between the upper right spring rod and the lower right spring rod, ensuring equal pressure and enhancing the user experience of the present invention. When the structure of the present invention is applied to a mattress product, users can obtain the same support effect no matter which corner of the mattress they sit on. The connection points between the upper left spring rod and the upper support rod, between the upper right spring rod and the upper support rod, between the lower left spring rod and the lower support rod, and between the lower right spring rod and the lower support rod are all connected with arc transitions. The arc transition connection can strengthen the overall strength structure of the present invention. The left circular torsion spring and the right circular torsion spring are arranged side by side in the same direction. Both the left circular torsion spring and the right circular torsion spring are arranged inside the spring group. Such a structural design ensures that when pressure is applied from above, the left circular torsion spring and the right circular torsion spring will not extrude and protrude outward, but extend into the mattress, achieving the effect of non-collapse at the edges and preventing friction and wear of the left circular torsion spring and the right circular torsion spring on the outer package of the mattress side. The upper support rod is knotted to the front side of the upper-end coil ring of the lower-layer spring through a screw-through spring. The lower support rod is knotted to the front side of the lower-end coil ring of the lower-layer spring through a screw-through spring. The covering layer wraps around the entire outside of the spring mattress core. Above the upper-layer spring and on the four sides of the upper side of the covering layer, there is a double-layer border.

[0024] The height of the spring group is 26 cm, the height of the lower layer spring is 14 - 17 cm, the height of the upper layer spring is 9 - 12 cm, the number of turns of the lower layer spring is 5 turns, and the number of turns of the upper layer spring is 4 turns.

[0025] When the height of the lower layer spring is 15 cm and the height of the upper layer spring is 11 cm, the comfort, stability and flexibility of the present invention reach the best effect, its bearing capacity is also significantly improved, the elastic strength is increased, the spring is less likely to be damaged, and the service life is longer;

[0026] The wire diameters of the upper layer spring and the lower layer spring are both 2 - 2.4 mm.

[0027] The wire diameters of the upper layer spring and the lower layer spring are both 2.2 mm.

[0028] The middle waist diameters of the upper layer spring and the lower layer spring are 48 - 55 mm.

[0029] The middle waist diameters of the upper layer spring and the lower layer spring are both 53 mm.

[0030] The number of the spring groups is 410 - 510.

[0031] The number of the spring groups is 440.

[0032] Experiments prove that: when the length and width dimensions of the spring bed core of the present invention are set to 180 cm × 200 cm, the number of the spring groups is 440, the wire diameters of the upper layer spring and the lower layer spring are both 2.2 mm, and the middle waist diameters of the upper layer spring and the lower layer spring are both 53 mm, the present invention can pass the 100,000 - time loading compression fatigue experiment, and the present invention is intact without deformation after the experiment.

[0033] From the structure of the present invention, it can be known that: when the height of the spring group is 24 cm, the height of the lower layer spring is 13 - 16 cm, and the height of the upper layer spring is 8 - 11 cm; when the height of the spring group is 28 cm, the height of the lower layer spring is 15 - 18 cm, and the height of the upper layer spring is 10 - 13 cm; when the height of the spring group is 30 cm, the height of the lower layer spring is 14 - 17 cm, and the height of the upper layer spring is 9 - 12 cm; when the height of the spring group is 24 cm or 28 cm or 30 cm, the application effect of the present invention can be achieved.

[0034] The principle of the present invention:

[0035] Through the heights of the upper spring and the lower spring, the total height of the spring group is 26 cm. The number of turns of the lower spring is more than that of the upper spring. The double-layer spring design achieves better stability and comfort during use. There are screw-through springs between the coil rings at both ends of adjacent two spring groups and between the coil rings of the upper spring and the lower spring, so that the spring bed core does not shake or displace as a whole; the number of turns of the lower spring is 5 turns, the number of turns of the upper spring is 4 turns, the optimal height of the lower spring is 15 cm, and the optimal height of the upper spring is 11 cm, achieving the best effects of comfort, stability and flexibility of the present invention. Its bearing capacity is also significantly improved, the elastic strength is increased, the spring is less likely to be damaged, and the service life is longer; the connection between the left circular torsion spring, the right circular torsion spring, the upper left spring rod, the lower left spring rod, the upper right spring rod, the lower right spring rod, the upper support rod and the lower support rod forms an integral annular structure, achieving the effect of enhancing the overall strength; the upper support rod and the lower support rod evenly distribute the pressure to the left circular torsion spring and the right circular torsion spring, achieving the effect of evenly supporting the pressure; the upper left spring rod and the upper support rod, the upper right spring rod and the upper support rod, the lower left spring rod and the lower support rod, and the lower right spring rod and the lower support rod are all bent at 90 degrees. The left circular torsion spring and the right circular torsion spring are arranged side by side in the same direction. The left circular torsion spring and the right circular torsion spring are both arranged inside the spring group. Such a structural design ensures that when pressure is applied from the upper part, the left circular torsion spring and the right circular torsion spring will not be extruded and protruded outward, but extend into the mattress, achieving the effect of non-collapse of the edge, and preventing the left circular torsion spring and the right circular torsion spring from rubbing and wearing the side outer package of the mattress; through experiments, the present invention can pass the 100,000-time loading compression fatigue test, and the present invention is intact without deformation after the test; there is a double-layer border around the four sides of the upper side of the covering layer. Compared with the existing single-layer covering edge, the double-layer border makes the covering layer more durable and the appearance more beautiful and generous; the present invention has a double-layer spring design with 4 turns of the upper spring and 5 turns of the lower spring, coded as D, the safety design of the support spring coded as D, the durable and beautiful design of the double-layer border coded as D, and the height of the spring group is 24 cm. Thus, the product model of the present invention is DDD5426, enabling purchasers to directly read the parameters of the bed core.

[0036] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention should be considered as belonging to the protection scope of the present invention.

Claims

1. A bed core structure for increasing the height and stability of a bed core, comprising a spring bed core and a covering layer, characterized in that the spring bed core is composed of a plurality of spring groups connected in parallel. Each spring group includes a lower-layer spring and an upper-layer spring. The upper-layer spring is arranged above the lower-layer spring. Both the upper-layer spring and the lower-layer spring are concave spiral springs. Between the coils of the ends of adjacent two spring groups and between the coils of the upper-layer spring and the lower-layer spring, there are screw-through springs. The coils between the ends of adjacent two spring groups and between the coils of the upper-layer spring and the lower-layer spring are connected and knotted through the screw-through springs. On the frame around the spring bed core and outside the lower-layer spring, there are a plurality of support springs lapped. The support springs include a left circular torsion spring and a right circular torsion spring. On the upper side of the left circular torsion spring, there is an upper left spring rod connected thereto. On the lower side of the left circular torsion spring, there is a lower left spring rod connected thereto. On the upper side of the right circular torsion spring, there is an upper right spring rod connected thereto. On the lower side of the right circular torsion spring, there is a lower right spring rod connected thereto. Horizontally between the upper ends of the upper left spring rod and the upper right spring rod, there is an upper support rod. Horizontally between the lower ends of the lower left spring rod and the lower right spring rod, there is a lower support rod. Between the upper left spring rod and the upper support rod, between the upper right spring rod and the upper support rod, between the lower left spring rod and the lower support rod, and between the lower right spring rod and the lower support rod, they are all bent at a 90-degree angle. The upper left spring rod and the upper right spring rod have the same length. The lower left spring rod and the lower right spring rod have the same length. Between the upper left spring rod and the lower left spring rod, there is a V-shaped angle. Between the upper right spring rod and the lower right spring rod, there is a V-shaped angle. The included angle between the upper left spring rod and the lower left spring rod is equal to the included angle between the upper right spring rod and the lower right spring rod. At the connection between the upper left spring rod and the upper support rod, at the connection between the upper right spring rod and the upper support rod, at the connection between the lower left spring rod and the lower support rod, and at the connection between the lower right spring rod and the lower support rod, they are all connected with arc transition. The left circular torsion spring and the right circular torsion spring are arranged side by side in the same direction. The left circular torsion spring and the right circular torsion spring are both arranged inside the spring group. The upper support rod is knotted to the front side of the upper-end coil of the lower-layer spring through a screw-through spring. The lower support rod is knotted to the front side of the lower-end coil of the lower-layer spring through a screw-through spring. The covering layer wraps around the whole outside of the spring bed core. Above the upper-layer spring and on the four sides of the upper side of the covering layer, there is a circle of double-layer edging.

2. A bed core structure for increasing the height and stability of a bed core according to claim 1, characterized in that the height of the spring group is 26 cm, the height of the lower-layer spring is 14 - 17 cm, the height of the upper-layer spring is 9 - 12 cm, the number of coils of the lower-layer spring is 5, and the number of coils of the upper-layer spring is 4.

3. A bed core structure for increasing the height and stability of a bed core according to claim 2, characterized in that the height of the lower-layer spring is 15 cm, and the height of the upper-layer spring is 11 cm.

4. A core structure of a bed for increasing the height and stability of the bed core according to claim 1, characterized in that the wire diameters of the upper springs and the lower springs are both 2 - 2.4 mm.

5. A core structure of a bed for increasing the height and stability of the bed core according to claim 4, characterized in that the wire diameters of the upper springs and the lower springs are both 2.2 mm.

6. A core structure of a bed for increasing the height and stability of the bed core according to claim 1, characterized in that the middle waist diameters of the upper springs and the lower springs are 48 - 55 mm.

7. A core structure of a bed for increasing the height and stability of the bed core according to claim 6, characterized in that the middle waist diameters of the upper springs and the lower springs are both 53 mm.

8. A core structure of a bed for increasing the height and stability of the bed core according to claim 1, characterized in that the number of the spring groups is 410 - 510.

9. A core structure of a bed for increasing the height and stability of the bed core according to claim 8, characterized in that the number of the spring groups is 440.

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