Spring elastic mattress

Abstract

A spring elastic mattress, comprising one or more elastic modules and a bottom layer arranged below the elastic module. The elastic module comprises a plurality of pre-compression springs, connecting pieces being provided on the middles of the pre-compression springs; the connecting pieces are divided into first connecting pieces and second connecting pieces, each side surface of the first connecting pieces being provided with a first connecting structure, and each side surface of the second connecting pieces being provided with a second connecting structure; the first connecting pieces and the second connecting pieces are respectively arranged on waists of the different pre-compression springs; the first connecting piece of a pre-compression spring is connected to the second connecting piece of another pre-compression spring, bottom surfaces of the pre-compression springs being connected to the bottom layer.

Description

A spring elastic pad

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority based on the Chinese patent application filed with the State Intellectual Property Office of China on December 14, 2023, with application number: 2023117205489, and the name of the invention: "A spring elastic pad". The content of the Chinese patent application is hereby introduced into the text of this application. Technical Field

[0003] The invention relates to the field of furniture, in particular to an elastic pad mainly composed of springs. Background Art

[0004] In modern life, mattresses are an essential piece of furniture among people's bedding. As people's daily lives become increasingly stressful, elastic mattresses with elastic components in the middle are becoming increasingly popular, seeking to relax during sleep. Existing mattresses with elastic components often have the soft cushion, elastic component, and base of these elastic pads integrated into one piece. The upper ends of the springs are connected together, causing localized pressure on the elastic pad to also compress the surrounding elastic components. Consequently, existing elastic pads cannot adjust the range of force applied to the elastic components based on the body's posture, making them unable to adapt to the body's curves and provide a more comfortable and comfortable fit. Furthermore, over long-term use, the elastic force of the springs may change, and the pads may also harbor bacteria and mites. The upper cushion and base of the elastic pads are integrally formed with the elastic component, making it impossible to assess the mattress's usage and wear during use. This requires timely cleaning and replacement of the elastic pad components, such as the upper cushion, springs, and base, based on usage and wear, to ensure the pad remains comfortable and soft. Summary of the Invention

[0005] The main technical problem solved by the present invention is to provide a spring elastic pad, in which the spring can adjust the force according to the posture of the human body, so that the elastic pad fits the curve of the human body, making the elastic pad more ergonomic, comfortable and soft.

[0006] In order to solve the above technical problems, the present invention provides a spring elastic pad, comprising one or more elastic modules, arranged at a bottom layer below the elastic module, wherein the elastic module comprises multiple pre-compressed springs; a connecting piece is provided in the middle of the pre-compressed spring, and the connecting piece is divided into a first connecting piece and a second connecting piece, a first connecting structure is provided on each side of the first connecting piece, and a second connecting structure is provided on each side of the second connecting piece, and the first connecting piece and the second connecting piece are respectively provided at the waists of different pre-compressed springs; the first connecting piece of the pre-compressed spring is connected to the second connecting piece of the other pre-compressed spring, and the bottom surface of the pre-compressed spring is connected to the bottom layer.

[0007] In some embodiments, the first connecting member includes a connecting seat, and the connecting seat is provided with a plug-in as a first connecting structure; the second connecting member includes a connecting seat, and the connecting seat is provided with a socket as a second connecting structure; the plug-in on the first connecting member and the socket on the second connecting member are connected male and female to realize the connection of the pre-compressed spring.

[0008] In some embodiments, the side surfaces of the connecting seat of the first connecting member extend outward to form an extension portion, and a protrusion is provided on the extension portion as the plug-in, and the protrusion is rotatable; the side surfaces of the connecting seat of the second connecting member extend outward to form an extension portion, and a concave hole is provided on the extension portion as the socket; when the protrusion is rotated to be offset from the concave hole, the first connecting member is connected to the second connecting member, and when the protrusion is rotated to be aligned with the concave hole, the first connecting member and the second connecting member are disconnected.

[0009] In some embodiments, the pre-compressed springs on the periphery of the elastic module are connected by overlapping pieces, or the connecting pieces are buckled with each other.

[0010] In some embodiments, the connector includes a detachable two-petal or multi-petal connector assembly that is snap-fitted to the waist of the pre-compressed spring.

[0011] In some embodiments, the two-petal or multi-petal connector components of the connector are interlocked with each other.

[0012] In some embodiments, the elastic pad further includes an upper pad layer, which is disposed above the elastic module or covers the upper portion and periphery of the elastic module.

[0013] In some embodiments, the upper cushion layer is detachably connected to the pre-compressed spring of the outermost peripheral elastic module.

[0014] In some embodiments, a plurality of drawstring strips are provided around the periphery of the upper cushion layer, and the drawstring strips are connected to connectors of the pre-compressed springs located on the periphery of the elastic module.

[0015] In some embodiments, the upper cushion layer is a complete upper cushion layer formed in one piece, or is formed by combining multiple upper cushion layers of different softness and hardness.

[0016] In some embodiments, the bottom layer is formed by splicing together a plurality of bottom layer units or is integrally formed.

[0017] In some embodiments, the plurality of bottom layers are detachably connected to form an elastic module base.

[0018] In some embodiments, the multiple bottom layer units or the multiple bottom layers are connected via a third member.

[0019] In some embodiments, the third component is a connecting knob, and a symmetrical T-shaped foot is provided at the bottom of the connecting knob. The outer periphery of the bottom unit or the bottom layer is provided with a slide rail connected to the T-shaped foot, and the width of the slide rail gradually narrows along the direction of the connecting knob; the connecting knob is inserted into the wide part of the slide rail between two adjacent bottom units or bottom layers, and the connecting knob is rotated until the T-shaped foot is limited by the narrow part of the slide rail to achieve the connection between the two adjacent bottom units or bottom layers.

[0020] In some embodiments, the pre-compression spring is connected to the bottom layer through the fixing member.

[0021] In some embodiments, the bottom layer is at least partially provided with the fixing element.

[0022] In some embodiments, the fixing member is a positioning protrusion provided on the bottom unit, and a concave cavity structure is provided on the lower end surface of the pre-compression spring, which is limited and matched with the positioning protrusion. The positioning protrusion and the concave cavity structure are connected in a male-female manner to realize the connection between the pre-compression spring and the bottom layer.

[0023] In some embodiments, the bottom layer is a rigid substrate or a flexible substrate.

[0024] In some embodiments, the pre-compressed spring is compressible to a locked state.

[0025] In some embodiments, the pre-compression spring includes a top cover and a bottom cover, and a locking structure is provided between the top cover and the bottom cover. The top cover and the bottom cover are buckled together by the locking structure to compress the pre-compression spring to a locked state.

[0026] In some embodiments, the pre-compression spring includes a top cover and a bottom cover, a first locking structure is provided on the top cover, and a second locking structure is provided on the bottom cover, and the first locking structure and the second locking structure are detachably buckled; the first locking structure and the second locking structure are buckled with each other to realize compression of the pre-compression spring, and are disassembled from each other to realize release of the pre-compression spring.

[0027] In some embodiments, a concave cavity structure is provided upwardly on the end surface of the bottom cover of the pre-compression spring, and the bottom cover is the outer bottom surface of the concave cavity structure.

[0028] In some embodiments, the second locking structure is a convex edge on the top surface of the concave cavity structure, and the convex edge is discontinuous.

[0029] The present invention also provides an application of an elastic pad, wherein the spring elastic pad is applied to sofas, mattresses, and soft-padded stools.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The elastic pad provided by the present invention has an independent upper end of the pre-compressed spring constituting the elastic module, so that the spring of the elastic pad can be subjected to force and fit the curve of the human body according to the posture of the human body, making the elastic pad softer and more comfortable.

[0032] 2. The elastic pad provided by the present invention has an upper cushion layer that is detachably connected to the elastic module and is arranged above the elastic module, so that the use condition of the elastic pad can be judged in time during use and can be cleaned and replaced.

[0033] 3. The pre-compression spring of the elastic pad provided by the present invention can be compressed to a locked state. When transporting or carrying the elastic pad, the disassembled pre-compression spring can be compressed to save transportation space and facilitate transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic diagram of an elastic pad according to Example 1;

[0035] FIG2 is a schematic diagram of a pre-compression spring engaging the first connecting member in Example 1;

[0036] FIG3 is a schematic diagram of a pre-compression spring engaging a second connecting member in accordance with Embodiment 1;

[0037] FIG4 is a schematic diagram of the first connecting member of Example 1;

[0038] Figure 5 is a schematic diagram of the second connecting member of Example 1;

[0039] Figure 6 is a schematic diagram of the connection method of Example 1;

[0040] FIG7 is a virtual physical diagram of the connecting member of Example 1;

[0041] FIG8 is a schematic diagram of a virtual object with connection relationships according to Example 1;

[0042] FIG9 is a virtual physical diagram of the elastic module of Example 1;

[0043] FIG10 is a schematic diagram showing the connection between the drawstring strip and the elastic module according to Example 1;

[0044] Figure 11 is a schematic diagram of a drawstring strip according to Example 1;

[0045] FIG12 is a schematic diagram of the connection between the drawstring strip and the connector according to Example 1;

[0046] FIG13 is an enlarged view of the connection between the protrusion and the recess of the buckle strip in Example 1;

[0047] FIG14 is a schematic diagram of the pre-compression spring on the outermost periphery of the elastic pad in Example 1;

[0048] FIG15 is a virtual physical diagram of the connection between the drawstring strip and the elastic module according to Example 1;

[0049] FIG16 is a schematic diagram showing the connection between the elastic module and the base;

[0050] Figure 17 is a schematic diagram of the 8-seat bottom unit splicing base;

[0051] FIG18 is a partial view of a base with positioning protrusions on all the bottom layers;

[0052] FIG19 is a partial view of a base with positioning protrusions provided around the bottom layer;

[0053] Figure 20 is a schematic diagram of a positioning protrusion;

[0054] Figure 21 is a schematic diagram of the connection knob;

[0055] Figure 22 is a schematic diagram of the base assembly of the 5-seat bottom unit;

[0056] Figure 23 is a schematic diagram of the base where the 5-position seat and the 1-position seat bottom unit are connected;

[0057] Figure 24 is a schematic diagram of the bottom unit of the 5-seat seat;

[0058] Figure 25 is a schematic diagram of the bottom unit of the 8-seat seat;

[0059] Figure 26 is a schematic diagram of the bottom unit of the 3-seat seat;

[0060] Figure 27 is a schematic diagram of the bottom unit of a seat;

[0061] Figure 28 is a virtual physical image of the base;

[0062] FIG29 is a virtual physical image of the base in a disassembled state;

[0063] Figure 30 is a schematic diagram of a pre-compressed spring in a released state;

[0064] Figure 31 is a schematic diagram of the compressed state of the pre-compression spring. DETAILED DESCRIPTION

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0066] The pre-compression spring described in the present invention, as previously applied for by the inventor and in the published documents, includes a top cover, a bottom cover, and a cloth cover or a strap provided between the top cover and the bottom cover. The spring is accommodated in a cavity surrounded by the bottom cover, the bottom cover and the cloth cover or the strap, and the distance between the bottom cover and the top cover is no greater than the height of the spring.

[0067] Example 1

[0068] 1-15 , this embodiment provides a spring elastic pad, comprising a plurality of elastic modules 1, an upper cushion layer 2 arranged above the elastic module 1, and a bottom layer 3 arranged below the elastic module 1 for connecting a pre-compressed spring 10. The elastic module 1 is composed of a plurality of pre-compressed springs 10, and a connecting member is provided in the middle of the pre-compressed spring 10; the connecting member is divided into a first connecting member 11 and a second connecting member 12, and a first connecting structure is provided on each side of the first connecting member 11, and a second connecting structure is provided on each side of the second connecting member 12. The first connecting member 11 and the second connecting member 12 are respectively provided at the waist of different pre-compressed springs 10; the first connecting member 11 of the pre-compressed spring 10 is connected to the second connecting member 12 of another pre-compressed spring 10 to realize the connection of the pre-compressed springs 10.

[0069] More specifically, in this embodiment, the first connecting member 11 is divided into two detachable first connecting member components 11.1 and 11.2, which are interlocked to form a ring-shaped first connecting member 11; the second connecting member is divided into two detachable second connecting member components 12.1 and 12.2, which are interlocked to form a ring-shaped second connecting member 12; the first connecting member 11 and the second connecting member 12 are respectively engaged with the waists of different pre-compression springs 10.

[0070] The first connecting member 11 includes a connecting base 110, which extends outward on all sides to form an extension portion 110.1. A circular clamping hole 110.2 is provided on the extension portion 110.1. Two clamping feet 111.1 are provided under the plug-in protrusion 111. The clamping feet 111.1 of the plug-in protrusion are clamped into the clamping hole 110.2 of the extension portion as a first connecting structure. At this time, the protrusion 111 can rotate around the extension portion 110.1; the second connecting member 12 includes a connecting base 120, which extends outward on all sides to form an extension portion 120.1. The extension portion 120.1 is provided with a socket recessed hole 120.2 as a second connecting structure.

[0071] When the pre-compression spring 10 is connected, the protrusion 111 of the first connecting member 11 is inserted into the recessed hole 120.2 of the second connecting member 12. At this time, the protrusion 111 and the recessed hole 120.2 are limited in the horizontal direction. As shown in Figure 6, the protrusion 111 is rotated until it is offset from the recessed hole 120.2. The protrusion 111 and the recessed hole 120.2 are limited in the vertical direction, thus completing the connection between the pre-compression springs 10. When the pre-compression spring 10 is disassembled, the protrusion 111 is rotated to overlap the recessed hole 120.2. The protrusion 111 can then be removed from the recessed hole 120.2, releasing the connection between the pre-compression springs 10.

[0072] In this embodiment, the pre-compression spring 10 at the outermost periphery of the elastic module 1 and the pre-compression spring 10 at the outermost periphery of another elastic module 1 are also connected by interlocking the first connecting member 11 and the second connecting member 12. As a simple replacement for this embodiment, the pre-compression spring 10 at the outermost periphery of the elastic module 1 and the pre-compression spring 10 at the outermost periphery of another elastic module 1 can also be connected using a lap joint.

[0073] In order to be able to judge the usage and cleanliness of the elastic pad during use, the elastic pad is cleaned or parts are replaced in time according to the usage. As shown in Figures 10-15, in this embodiment, an upper cushion layer 2 is provided above the elastic module 1, and the pre-compressed spring 10 is exposed to the outside. The elastic pad has an open structure. The user can judge the cleanliness of the elastic pad and the degree of wear of the spring in time with the naked eye during use.

[0074] In order to facilitate users to clean and replace parts of the elastic pad, in this embodiment, a drawstring strip 20 is provided around the upper pad layer 2, and the drawstring strip 20 is buckled with the connecting piece of the pre-compression spring 10 connected to the outermost periphery of the elastic pad to realize the detachable connection between the upper pad layer 2 and the elastic module 1.

[0075] In this embodiment, the upper cushion layer drawstring strip 20 is provided with a rotatable protrusion 201 identical to the first connector 11. The rotatable protrusion 201 on the drawstring strip 20 is inserted into the recessed hole 120.2 of the second connector 12 of the outermost pre-compression spring 10 of the elastic pad, and the protrusion 201 is rotated until it is offset from the recessed hole 120.2 to achieve the connection between the upper cushion layer drawstring strip 20 and the elastic module 1. As a simple alternative to this embodiment, the drawstring strip 20 can also be provided with a recessed hole identical to the second connector 12 to connect to the protrusion 111 of the first connector of the outermost pre-compression spring 10 of the elastic module 1.

[0076] In this embodiment, to meet users' varying needs for elastic cushion softness, the upper cushion layer 2 is formed by combining multiple upper cushion layers of varying hardness. Users can select and combine upper cushion layers of varying hardness based on their actual needs and preferences for upper cushion softness to create a cushion layer 2 that suits their needs. The surface of the upper cushion layer 2 can also be made of various materials, such as genuine leather, microfiber, cotton, and wool. As a simple alternative to this embodiment, the upper cushion layer 2 can also be integrally formed.

[0077] Referring to Figures 16-29, in this embodiment, the bottom layer 3 is composed of multiple bottom layer units 30. In order to enable the pre-compression spring 10 to be connected to the bottom layer 3, a positioning protrusion 31 is provided on the bottom layer 3 as a fixing part, and the lower end surface of the pre-compression spring 10 is provided with a concave cavity structure 102.2 that cooperates with the positioning protrusion to limit the position. The positioning protrusion 31 is connected to the concave cavity structure 102.2 on the bottom layer 3 through male and female connections.

[0078] The bottom layer 3 is composed of multiple bottom layer units 30 connected together by a connecting knob 32 to form the size of the elastic module 1. The connecting knob 32 is a circular knob with two symmetrical T-shaped clamping feet 32.1 at its bottom. The edges of the bottom layer units are provided with slide rails 30.1 that are positioned to engage with the T-shaped clamping feet 32.1 of the connecting knob 32. The width of the slide rail 30.1 gradually narrows as the knob is rotated. The two T-shaped clamping feet 32.1 of the connecting knob 32 are respectively inserted into the wide parts of the slide rails 30.1 of two adjacent bottom layer units 30. The handle on the connecting knob 32 is then held and the connecting knob 32 is rotated until the clamping feet 32.1 are restrained by the narrow part of the slide rail 30.1 to connect the adjacent bottom layer units 30.

[0079] As a simple alternative to this embodiment, the bottom layer 3 can also be integrally formed to the size of the elastic module 1. At the same time, since the pre-compressed springs 10 inside the elastic module 1 are interconnected, the positioning protrusions 31 can only be provided on the bottom layer unit 30 on the periphery of the bottom layer 3.

[0080] In this embodiment, the elastic pad is composed of multiple elastic modules 1, and multiple bottom layers 3 connected to the pre-compressed springs 10 are detachably connected through the above-mentioned connecting knob 32 to form a base for connecting the elastic modules 1. This allows the user to select a certain number of elastic modules 1 and detachably connected bottom layers 3 according to actual size requirements to splice and form an elastic pad.

[0081] The size of the bottom unit 30 can be arbitrarily set. One bottom unit 30 can be connected to one pre-compressed spring 10 or multiple pre-compressed springs 10. The bottom layer 3 can be formed by connecting bottom units 30 of different sizes through the connection knob 32, or by connecting bottom units 30 of the same size through the connection knob 32. As a simple alternative to this embodiment, the bottom units 30 and the bottom layers 3 can also be detachably connected by plugging, hinges, etc.

[0082] Specifically, the bottom layer 3 can be formed by splicing a plurality of bottom layer units 30 with 8 seats and a plurality of bottom layer units 30 with 4 seats, or by splicing a plurality of bottom layer units 30 with 5 seats, or by splicing a plurality of bottom layer units 30 with 1 seat and a plurality of bottom layer units 30 with 5 seats. The number of seats on the bottom layer units 30 and the splicing combination are not limited to those mentioned in this embodiment.

[0083] In this embodiment, the bottom layer 3 connected to the pre-compression spring 10 is composed of a rigid substrate, which can be formed of rigid materials such as wood boards, blister boards, etc. As a simple alternative to this embodiment, the bottom layer 3 can also be composed of a flexible substrate.

[0084] Referring to Figures 30-31, in this embodiment, in order to facilitate the transportation or handling of the elastic pad after disassembly, the pre-compression spring can be compressed to a locked state. The height of the spring compressed to the locked state is greatly reduced, the space occupied is reduced, and transportation and handling are convenient. More specifically, the pre-compression spring includes a top cover 101 and a bottom cover 102. A first latching structure 101.1 is provided on the top cover 101, and a second latching structure 102.1 is provided on the bottom cover 102. The first latching structure 101.1 and the second latching structure 102.1 are detachably buckled; a concave cavity structure 102.2 that cooperates with the positioning protrusion in a limited manner is extended upward from the center of the lower end surface of the bottom cover 102 of the pre-compression spring. The bottom cover 102 is the concave cavity structure The outer bottom surface of the pre-compression spring, the second locking structure 102.1 is a convex edge arranged on the outer periphery of the upper end of the pre-compression spring cavity structure 102.2, and is a discontinuous ring; use external force to compress the pre-compression spring 10 until the hook of the first locking structure 101.1 and the convex edge of the second locking structure 102.1 are engaged with each other to realize the compression of the pre-compression spring, and then use external force and rotate the pre-compression spring 10 to rotate the first locking structure 101.1 away from the second locking structure 102.1 to realize the release of the pre-compression spring.

[0085] The above description and embodiments are intended to explain the scope of protection of the present invention, but do not constitute a limitation thereto. Modifications, equivalent substitutions, or other improvements to the embodiments of the present invention or portions thereof that can be obtained by a person of ordinary skill in the art through logical analysis, reasoning, or limited experimentation based on the teachings of the present invention or the above embodiments, combined with common knowledge, ordinary technical knowledge in the field, and / or prior art, should all be included within the scope of protection of the present invention. Industrial Applicability

[0086] The present invention provides a spring elastic pad, comprising one or more elastic modules and a bottom layer arranged below the elastic modules, wherein the elastic modules include multiple pre-compressed springs; a connecting piece is provided in the middle of the pre-compressed springs, and the connecting piece is divided into a first connecting piece and a second connecting piece, wherein a first connecting structure is provided on each side surface of the first connecting piece, and a second connecting structure is provided on each side surface of the second connecting piece, and the first connecting piece and the second connecting piece are respectively arranged at different waists of the pre-compressed springs; the first connecting piece of the pre-compressed spring is connected to the second connecting piece of the other pre-compressed spring, and the bottom surface of the pre-compressed spring is connected to the bottom layer, and the present invention has industrial applicability.

Claims

1. A spring elastic pad, comprising one or more elastic modules, arranged on a bottom layer below the elastic modules, characterized in that: The elastic module includes a plurality of pre-compression springs; a connecting piece is provided in the middle of the pre-compression spring, and the connecting piece is divided into a first connecting piece and a second connecting piece, the first and second connecting pieces are annular and have four sides, a first connecting structure is provided on each side of the first connecting piece, and a second connecting structure is provided on each side of the second connecting piece, and the first connecting piece and the second connecting piece are respectively provided at different waists of the pre-compression springs; the first connecting piece of the pre-compression spring is connected to the second connecting piece of the adjacent pre-compression spring, and the bottom surface of the pre-compression spring is connected to the bottom layer.

2. The spring elastic pad according to claim 1, characterized in that: The first connecting member includes a connecting seat, and the connecting seat is provided with a plug-in as a first connecting structure; the second connecting member includes a connecting seat, and the connecting seat is provided with a socket as a second connecting structure; the plug-in on the first connecting member and the socket on the second connecting member are connected male and female to realize the connection of the pre-compressed spring.

3. The spring elastic pad according to claim 2, characterized in that: The side surfaces of the connecting seat of the first connecting member extend outwardly to form an extension portion, and a protrusion is provided on the extension portion as the plug-in, and the protrusion is rotatable; the side surfaces of the connecting seat of the second connecting member extend outwardly to form an extension portion, and a concave hole is provided on the extension portion as the socket; when the protrusion is rotated to be offset from the concave hole, the first connecting member is connected to the second connecting member, and when the protrusion is rotated to be aligned with the concave hole, the first connecting member and the second connecting member are disconnected.

4. The spring elastic pad according to claim 1, characterized in that: The pre-compression springs on the periphery of the elastic module are connected by overlapping pieces, or the connecting pieces are buckled with each other.

5. The spring elastic pad according to claim 1, characterized in that: The connecting piece comprises a detachable connecting piece assembly with two or more petals, which is clamped on the waist of the pre-compression spring.

6. The spring elastic pad according to claim 5, characterized in that: The two-petal or multi-petal connector components of the connector are interlocked with each other.

7. The spring elastic pad according to any one of claims 1 to 6, characterized in that: The elastic pad also includes an upper pad layer, which is arranged above the elastic module or covers the upper part and the periphery of the elastic module.

8. The spring elastic pad according to claim 7, characterized in that The upper cushion layer is detachably connected to the pre-compression spring of the outermost peripheral elastic module.

9. The spring elastic pad according to claim 8, characterized in that A plurality of drawstring strips are arranged around the upper cushion layer, and the drawstring strips are connected to the connectors of the pre-compression springs located at the periphery of the elastic module.

10. The spring elastic pad according to claim 7, characterized in that: The upper cushion layer is a complete upper cushion layer formed in one piece, or is formed by combining a plurality of upper cushion layers with different hardness and softness.

11. The spring elastic pad according to any one of claims 1 to 6, characterized in that: The bottom layer is formed by splicing a plurality of bottom layer units or forming them in one piece.

12. The spring elastic pad according to claim 11, characterized in that The multiple bottom layers are detachably connected to form an elastic module base.

13. The spring elastic pad according to claim 12, characterized in that The multiple bottom layer units or the multiple bottom layers are connected via a third piece.

14. The spring elastic pad according to claim 13, characterized in that The third component is a connecting knob, and a symmetrical T-shaped foot is provided at the bottom of the connecting knob. The outer periphery of the bottom unit or the bottom layer is provided with a slide rail connected to the T-shaped foot, and the width of the slide rail gradually narrows along the direction of the connecting knob; the connecting knob is inserted into the wide part of the slide rail between two adjacent bottom units or bottom layers, and the connecting knob is rotated until the T-shaped foot is limited by the narrow part of the slide rail to realize the connection between two adjacent bottom units or bottom layers.

15. The spring elastic pad according to claim 11, characterized in that The pre-compression spring is connected to the bottom layer through the fixing member.

16. The spring elastic pad according to claim 15, characterized in that The fixing element is at least partially disposed on the bottom layer.

17. The spring elastic pad according to claim 16, characterized in that The fixing piece is a positioning protrusion arranged on the bottom unit, and a concave cavity structure that is limitedly matched with the positioning protrusion is provided on the lower end surface of the pre-compression spring. The positioning protrusion and the concave cavity structure are connected in a male-female manner to realize the connection between the pre-compression spring and the bottom layer.

18. The spring elastic pad according to claim 11, characterized in that The bottom layer is a rigid substrate or a flexible substrate.

19. The spring elastic pad according to any one of claims 1 to 6, characterized in that: The pre-compression spring can be compressed to a locked state.

20. The spring elastic pad according to claim 19, characterized in that The pre-compression spring comprises a top cover and a bottom cover, a locking structure is arranged between the top cover and the bottom cover, and the top cover and the bottom cover are buckled through the locking structure to compress the pre-compression spring to a locked state.

21. The spring elastic pad according to claim 20, characterized in that The pre-compression spring includes a top cover and a bottom cover, a first locking structure is arranged on the top cover, and a second locking structure is arranged on the bottom cover, and the first locking structure and the second locking structure are detachably buckled; the first locking structure and the second locking structure are buckled with each other to realize compression of the pre-compression spring, and are detached from each other to realize release of the pre-compression spring.

22. The spring elastic pad according to claim 21, characterized in that The end surface of the bottom cover of the pre-compression spring extends upward to form a concave cavity structure, and the bottom cover is the outer bottom surface of the concave cavity structure.

23. The spring elastic pad according to claim 22, characterized in that The second locking structure is a convex edge on the top surface of the concave cavity structure, and the convex edge is a discontinuous ring.

24. An application of a spring elastic pad, characterized in that: The spring elastic pad described in any one of claims 1 to 23 is applied to sofas, mattresses, and soft-padded stools.

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