Elastic pad having springs connected by bridging members

Abstract

An elastic pad, comprising one or more elastic module, and a bottom layer arranged below the elastic module. The elastic module comprises a plurality of pre-compressed springs. The middle of each pre-compressed spring is provided with a connecting member. Further comprised are bridging members. Adjacent pre-compressed springs are connected at the middle, and are connected to the bridging members by means of the connecting members. Each bridging member connects adjacent pre-compressed springs. The bottom face of each pre-compressed spring is connected to the bottom layer.

Description

An elastic pad with springs connected by lap joints

[0001] Cross-reference to related applications:

[0002] This application claims the basis of the Chinese patent application filed with the State Intellectual Property Office of China on December 14, 2023, with application number: 2023117205563, and the name of the invention: "A kind of elastic pad", and claims its priority. 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 a spring-connected elastic pad. 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 an elastic pad, wherein 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 an elastic pad, comprising one or more elastic modules and a bottom layer arranged 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 also comprises a lap joint, adjacent pre-compressed springs are connected in the middle, connected to the lap joint by the connecting piece, the lap joint connects adjacent pre-compressed springs, and the bottom surface of the pre-compressed spring is connected to the bottom layer.

[0007] In some embodiments, the connector includes a connecting seat, the connecting seat is provided with a first connecting structure, the lap joint is provided with a second connecting structure, and the first connecting structure is connected to the second connecting structure to achieve the connection between the connector and the lap joint.

[0008] In some embodiments, the connecting seat is provided with a plug as the first connecting structure, and the bridging piece is provided with a socket as the second connecting structure. The plug and the socket are connected in male and female manner to realize the connection between the connecting piece and the bridging piece.

[0009] In some embodiments, the connector includes a connector seat, the connector seat is provided with a protrusion as the plug-in, the lap joint is provided with a groove as the socket, and the protrusion is limitedly engaged with the groove.

[0010] In some embodiments, the protrusions are evenly arranged around the connecting seat.

[0011] In some embodiments, the grooves are arranged around the bridging member.

[0012] In some embodiments, the connecting piece includes a fixing seat and a knob connected around the fixing seat. The knob is provided with a groove that matches the protrusion. The protrusion is snapped into the groove and the knob is rotated to lock the protrusion to achieve the connection between the connecting piece and the connecting piece.

[0013] In some embodiments, the pre-compression springs on the periphery of the elastic module are connected by overlapping parts, or the connecting parts are buckled with each other.

[0014] 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.

[0015] In some embodiments, the two-petal or multi-petal connector components of the connector are interlocked with each other.

[0016] In some embodiments, an upper cushion layer is further included, and the upper cushion layer is arranged above the elastic module, or covers the upper part and the periphery of the elastic module.

[0017] In some embodiments, the upper cushion layer is detachably connected to the pre-compressed spring of the outermost peripheral elastic module.

[0018] In some embodiments, a plurality of drawstring strips are provided around the periphery of the upper cushion layer, and the drawstring strips are buckled and connected to the connectors or lap joints of the pre-compressed springs located on the periphery of the elastic module.

[0019] 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.

[0020] In some embodiments, the bottom layer is formed by detachably splicing a plurality of bottom layer units, or is integrally formed.

[0021] In some embodiments, the multiple bottom layers are detachably connected to form an elastic module base.

[0022] In some embodiments, the multiple bottom layer units or the multiple bottom layers are connected via a third member.

[0023] 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 rotation 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.

[0024] In some embodiments, the pre-compression spring is connected to the bottom layer through the fixing member.

[0025] In some embodiments, the bottom layer is at least partially provided with the fixing element.

[0026] 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.

[0027] In some embodiments, the bottom layer is formed of a rigid substrate or a flexible substrate.

[0028] In some embodiments, the pre-compressed spring is compressible to a locked state.

[0029] In some embodiments, the pre-compression spring includes a top cover and a bottom cover, a spring is arranged between the top cover and the bottom cover, and a locking structure is arranged between the top cover and the bottom cover. The top cover and the bottom cover are buckled through the locking structure to compress the pre-compression spring to a locked state.

[0030] In some embodiments, a first latching structure is provided on the lower end surface of the top cover, and a second latching structure is provided on the upper end surface of the bottom cover, and the first latching structure and the second latching structure are detachably buckled; the first latching structure and the second latching 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.

[0031] In some embodiments, a concave cavity structure extends upward from the lower end surface of the bottom cover of the pre-compression spring, and the bottom cover is the lower bottom surface of the concave cavity structure.

[0032] 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 a discontinuous ring.

[0033] The present invention also provides an application of an elastic pad, which is applied to sofas, mattresses, and soft-padded stools.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 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.

[0036] 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.

[0037] 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

[0038] FIG1 is a schematic diagram of an elastic pad according to Example 1;

[0039] Figure 2 is a schematic diagram of a pre-compression spring in Example 1;

[0040] Figure 3 is a schematic diagram of a connecting piece in Example 1;

[0041] FIG4 is a schematic diagram of a lap joint according to Example 1;

[0042] FIG5 is a schematic diagram of the connection relationship of Example 1;

[0043] FIG6 is a virtual physical diagram of the elastic module in Example 1;

[0044] FIG7 is a virtual schematic diagram of the projection snapping into the lap joint in Example 1;

[0045] FIG8 is a virtual physical diagram of the locking protrusion connection of the lap joint in Example 1;

[0046] FIG9 is a schematic diagram of a virtual object with connection relationships according to Example 1;

[0047] FIG10 is a schematic diagram showing the connection between the drawstring strip and the elastic module according to Example 1;

[0048] Figure 11 is a schematic diagram of the draw fastener strip and the three-way lap joint in Example 1;

[0049] FIG12 is a schematic diagram of the connection of the pre-compressed spring on the outermost periphery of the elastic pad in Example 1;

[0050] FIG13 is a virtual physical diagram of the connection between the drawstring strip and the elastic module according to Example 1;

[0051] FIG14 is a schematic diagram showing the connection between the elastic module and the base;

[0052] Figure 15 is a schematic diagram of the 8-seat bottom unit splicing base;

[0053] FIG16 is a partial view of a base with positioning protrusions on all the bottom layers;

[0054] FIG17 is a partial view of a base with positioning protrusions provided around the bottom layer;

[0055] Figure 18 is a schematic diagram of a positioning protrusion;

[0056] Figure 19 is a schematic diagram of the connection knob;

[0057] Figure 20 is a schematic diagram of the base assembly of the 5-seat bottom unit;

[0058] Figure 21 is a schematic diagram of the base where the 5-seat and 1-seat bottom unit are connected;

[0059] Figure 22 is a schematic diagram of the bottom unit of the 5-seat seat;

[0060] Figure 23 is a schematic diagram of the bottom unit of the 8-seat seat;

[0061] Figure 24 is a schematic diagram of the bottom unit of the 3-seat seat;

[0062] Figure 25 is a schematic diagram of the bottom unit of a 1-seat seat;

[0063] Figure 26 is a virtual physical image of the base;

[0064] Figure 27 is a virtual physical image of the base in a disassembled state;

[0065] Figure 28 is a schematic diagram of a pre-compressed spring in a released state;

[0066] FIG29 is a schematic diagram of the pre-compression spring in a compressed state. DETAILED DESCRIPTION

[0067] 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.

[0068] 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.

[0069] Example 1

[0070] Referring to Figures 1-13: This embodiment provides an elastic pad, including multiple 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 multiple pre-compressed springs 10; a connecting member 11 is provided in the middle of the pre-compressed spring 10, and also includes a lap joint 12. Adjacent pre-compressed springs 10 are connected in the middle, and are connected to the lap joint 12 by the connecting member 11. The lap joint 12 connects adjacent pre-compressed springs 10.

[0071] More specifically, in this embodiment, connector 11 is divided into two detachable connector components 11.1 and 11.2, which interlock to form a ring shape and engage with the waist of pre-compression spring 10. Connector 11 includes a connecting seat 11.3, with T-shaped protrusions 11.4 evenly arranged around the connecting seat as inserts. The T-shaped protrusions 11.4 of different pre-compression springs 10 are overlapped by a bridge piece 12 to connect adjacent pre-compression springs 10.

[0072] The bridging member 12 in this embodiment includes a fixing seat 12.1 and knobs 12.2 connected to the fixing seat. Each of the four knobs 12.2 is provided with a groove 12.3 that acts as a socket and cooperates with the limit of the T-shaped protrusion 11.4. The knob 12.2 can rotate around the groove 12.3. The T-shaped protrusion 11.4 on the pre-compression spring connector is snapped into the groove 12.3 on the bridging member knob. The T-shaped protrusion 11.4 is now limited in the horizontal direction with the groove. The knob 12.2 is rotated until the T-shaped protrusion 11.4 and the knob 12.2 are limited in the vertical direction. At this time, the knob 12.2 locks the T-shaped protrusion 11.4, thereby completing the connection between the pre-compression springs 10.

[0073] When connecting pre-compression springs 10, insert T-shaped protrusion 11.4 into groove 12.3 on bridge member 12. At this time, as shown in Figure 7, T-shaped protrusion 11.4 and groove 12.3 are horizontally limited. Turn knob 12.2 to the position shown in Figure 8. Knob 12.2 locks T-shaped protrusion 11.4 to connect adjacent pre-compression springs 10. When disassembling pre-compression springs 10, rotate knob 12.2 until it releases the vertical limit engagement with T-shaped protrusion 11.4. Remove T-shaped protrusion 11.4 to release the connection between adjacent pre-compression springs 10.

[0074] In this embodiment, each bridging member 12 has four knobs 12.2, and each bridging member 12 can be connected to the connecting members 11 on four pre-compression springs. The other T-shaped protrusions 11.4 on the four pre-compression spring connecting members are connected to other bridging members 12, and so on. The pre-compression springs 10 are connected to form an elastic module 1.

[0075] 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 using the aforementioned bridge piece 12. As a simple alternative to 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 interlocked with each other via a connecting piece.

[0076] In order to be able to judge the usage and cleanliness of the elastic pad during use, and to clean or replace parts of the elastic pad in time according to the usage, in this embodiment, the upper pad 2 is arranged above the elastic module 1, and the pre-compression 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.

[0077] In order to facilitate users in cleaning and replacing parts of the elastic pad, as shown in Figures 10-13, in this embodiment, a drawstring strip 20 is provided around the upper pad 2, and the drawstring strip 20 is buckled with the lap joint 13 connecting the outermost pre-compressed spring of the elastic pad to realize a detachable connection between the upper pad 2 and the elastic module 1.

[0078] In this embodiment, the pre-compression springs 10 at the outermost periphery of the elastic pad do not need to be connected to another elastic module 1, so the adjacent pre-compression springs 10 at the outermost periphery of the elastic pad and the buckle strip 20 of the upper cushion layer 2 are connected by a three-way lap joint 13. The lap joint 13 includes a fixing seat 13.1 and three knobs 13.2 identical to the above-mentioned knobs 12.2, each having a groove 13.3. The T-shaped protrusions 11.4 on the adjacent pre-compression spring connectors at the outermost periphery of the elastic pad and the T-shaped protrusions 20.1 on the buckle strip are respectively inserted into the three grooves 13.3 of the three-way lap joint 13. Rotating the knob 13.2 to lock the T-shaped protrusions 20.1 achieves the connection and fixation of the pre-compression springs 10 at the outermost periphery of the elastic pad and the fixation of the upper cushion layer 2 to the elastic module 1. As a simple alternative to this embodiment, a groove can also be provided on the buckle strip 20 to directly connect with the protrusion of the connector.

[0079] 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.

[0080] Referring to Figures 14-27, 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] Referring to Figures 28-29, 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 is provided on the lower end surface of the bottom cover 102 of the pre-compression spring, which is limited by the positioning protrusion. The bottom cover 102 is the lower bottom surface of the concave cavity structure 102.2. 02.2, 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 interlocked 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.

[0088] 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

[0089] The present invention provides an 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 also includes a lap joint, adjacent pre-compressed springs are connected in the middle, connected to the lap joint by the connecting piece, the lap joint connects adjacent pre-compressed springs, and the bottom surface of the pre-compressed springs is connected to the bottom layer, which has industrial applicability.

Claims

1. An elastic pad with springs connected by a bridging member, comprising one or more elastic modules and a bottom layer arranged below the elastic modules, characterized in that: The elastic module includes a plurality of pre-compression springs, connectors, and lap joints; a connector is provided on the middle side of the pre-compression spring, adjacent pre-compression springs are connected to the lap joints in the middle by the connector, and the bottom surface of the pre-compression spring is connected to the bottom layer.

2. The elastic pad with springs connected by bridging members according to claim 1, characterized in that: The connecting member comprises a connecting seat, the connecting seat is provided with a first connecting structure, the lap joint is provided with a second connecting structure, and the first connecting structure is connected with the second connecting structure to realize the connection between the connecting member and the lap joint.

3. The elastic pad with springs connected by bridging members according to claim 2, characterized in that: The connecting seat is provided with a plug as the first connecting structure, and the lap joint is provided with a socket as the second connecting structure. The plug and the socket are connected in male and female manner to realize the connection between the connecting member and the lap joint.

4. The elastic pad with springs connected by bridging members according to claim 3, characterized in that: The connecting piece comprises a connecting seat, the connecting seat is provided with a protrusion as the plug-in, the lap joint is provided with a groove as the socket, and the protrusion is limitedly matched with the groove.

5. The elastic pad with springs connected by bridging members according to claim 4, characterized in that: The protrusions are arranged around the connecting seat.

6. The elastic pad with springs connected by bridging members according to claim 5, characterized in that: The grooves are arranged around the bridging piece.

7. The elastic pad with springs connected by bridging members according to claim 6, characterized in that: The lap joint includes a fixing seat and a knob connected around the fixing seat, the knob is provided with a groove matched with the protrusion, the protrusion is inserted into the groove and the knob is rotated to lock the protrusion, thereby realizing the connection between the connecting member and the lap joint.

8. The elastic pad with springs connected by bridging members 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.

9. The elastic pad with springs connected by bridging members according to claim 3, 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.

10. The elastic pad with springs connected by bridging members according to claim 9, characterized in that: The two-petal or multi-petal connector components of the connector are interlocked with each other.

11. The elastic pad with springs connected by bridging pieces according to any one of claims 1 to 10, characterized in that: It also includes an upper cushion layer, which is arranged above the elastic module or covers the upper part and the periphery of the elastic module.

12. The elastic pad with springs connected by bridging members according to claim 11, characterized in that: The upper cushion layer is detachably connected to the pre-compression spring of the outermost peripheral elastic module.

13. The elastic pad with springs connected by bridging members according to claim 12, characterized in that: A plurality of drawstring strips are arranged around the upper cushion layer, and the drawstring strips are buckled and connected with the connecting pieces or overlapping pieces of the pre-compressed springs of the elastic module located at the periphery.

14. The elastic pad with springs connected by bridging members according to claim 13, 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.

15. The elastic pad with springs connected by bridging pieces according to any one of claims 1 to 10, characterized in that: The bottom layer is formed by detachably splicing a plurality of bottom layer units, or is integrally formed.

16. The elastic pad with springs connected by bridging members according to claim 15, characterized in that: The multiple bottom layers are detachably spliced ​​to form an elastic module base.

17. The elastic pad with springs connected by bridging members according to claim 16, characterized in that: The multiple bottom layer units or the multiple bottom layers are connected via a third piece.

18. The elastic pad with springs connected by bridging members according to claim 17, 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 rotation 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.

19. The elastic pad with springs connected by bridging members according to claim 15, characterized in that: The pre-compression spring is connected to the bottom layer through the fixing member.

20. The elastic pad with springs connected by bridging members according to claim 19, characterized in that: The fixing element is at least partially disposed on the bottom layer.

21. The elastic pad with springs connected by bridging members according to claim 20, 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.

22. The elastic pad with springs connected by bridging members according to claim 15, characterized in that: The bottom layer is formed of a rigid substrate or a flexible substrate.

23. The elastic pad according to any one of claims 1 to 10, characterized in that: The pre-compression spring can be compressed to a locked state.

24. The elastic pad according to claim 23, characterized in that The pre-compression spring comprises a top cover and a bottom cover, a spring is arranged between the top cover and the 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.

25. The elastic pad according to claim 24, characterized in that A first locking structure is arranged on the lower end surface of the top cover, and a second locking structure is arranged on the upper end surface of the bottom cover. 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.

26. The elastic pad according to claim 25, characterized in that A concave cavity structure is arranged on the lower end surface of the bottom cover of the pre-compression spring, and the bottom cover is the top surface of the concave cavity structure.

27. The elastic pad according to claim 26, characterized in that The second positioning structure is a convex edge on the top surface of the concave cavity structure, and the convex edge is discontinuous.

28. An application of an elastic pad, characterized in that: The elastic pad described in any one of claims 1 to 27 is applied to sofas, mattresses, and soft-padded stools.

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