Elastic module having connecting structures and elastic pad

Abstract

An elastic module having connecting structures and an elastic pad. The elastic module comprises pre-compression springs and connecting members, each connecting member is sleeved in the middle of the corresponding pre-compression spring, the connecting member is provided with four connecting structures on the side surface of the pre-compression spring, the four connecting structures define a quadrangle, and the pre-compression springs are connected by means of the connecting structures; and each connecting structure comprises a connecting slot and a connecting insert, two sides of the connecting slot are opened, and the connecting insert is inserted into the connecting slot of the corresponding pre-compression spring, so that two adjacent pre-compression springs are connected. The connecting members are sleeved on the pre-compression springs, and the connecting slots and the connecting inserts of the connecting members are fitted to achieve connection of the middle of the pre-compression springs. The pre-compression springs are ensured to be not separated from each other, and the top ends and / or the bottom ends of the pre-compression springs are not directly connected, thereby ensuring that the pre-compression springs are relatively independent and can be independently stressed.

Description

Elastic module and elastic pad with connection structure

[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: 2023117205582, and the name of the invention: "An elastic module and elastic pad with a connecting structure", and claims partial priority thereof. Part of the content of the Chinese patent application is hereby introduced into the text of this application. Technical Field

[0003] The present invention belongs to the technical field of elastic pads, and in particular relates to an elastic module and an elastic pad with a connection structure. Background Art

[0004] The elastic pad made of existing pre-compressed springs exhibits overall elasticity. When a certain part is compressed, the pre-compressed springs around it also bear the pressure. In this way, the elastic pad can withstand greater pressure, but its local elasticity cannot change with changes in human posture.

[0005] The aforementioned adverse effects are primarily caused by the cushion's mounting structure. While each pre-compressed spring should provide independent elasticity, in conventional cushions, the upper ends of the pre-compressed springs are typically connected together, allowing them to share the force and, consequently, the elasticity. Therefore, it is crucial to ensure that the springs are independently loaded while remaining connected, ensuring that the cushion deforms synchronously with the body's posture. Summary of the Invention

[0006] The present invention aims to overcome the defects of the prior art and provide an elastic module with a connecting structure and an elastic pad including the elastic module. The pre-compressed springs of the elastic module are connected by the connecting structure and will not separate from each other while being subjected to independent force.

[0007] The technical solutions of the present invention are as follows:

[0008] An elastic module includes a pre-compression spring and a connector. The pre-compression springs are arranged in a staggered manner to form the elastic module. The connector is sleeved on the middle of the pre-compression spring. The connector has four connecting structures on the side of the pre-compression spring. The four connecting structures form a quadrilateral. The pre-compression springs are connected by the connecting structures.

[0009] The connection structure includes a connection groove and a connection plug-in. The connection groove is open on both sides. The connection plug-in is plugged into the connection groove of the pre-compression spring to connect two adjacent pre-compression springs.

[0010] In the above technical solution, the pre-compression springs are connected through the cooperation of the connecting plug and the connecting groove in the connecting structure, which can ensure that the pre-compression springs are not separated from each other. At the same time, the top and / or bottom ends of the pre-compression springs are not directly connected, ensuring that the pre-compression springs are relatively independent and can bear force independently.

[0011] In a possible implementation, the connecting plug is plugged into the two connecting slots respectively. In the above technical solution, the connecting plug is plugged into the two connecting slots respectively, thereby connecting the connecting members where the two connecting slots are located, and further connecting the two pre-compression springs.

[0012] In a possible implementation, at least one connecting plug is inserted into each of the connecting grooves of the two connecting members, and the two connecting plugs can be connected to each other or through a third member. In the above technical solution, the two pre-compression springs are connected through the interconnected connecting plugs.

[0013] In a possible implementation, the connecting member includes two opposite connecting grooves, and each connecting groove is connected to one or two pre-compression springs via a connecting plug-in.

[0014] In a possible implementation, the pre-compression springs in the front row are connected to the pre-compression springs in the two rear rows at the sides through two opposite connecting grooves.

[0015] In one possible implementation, a stopper is provided in the middle of the connector, perpendicular to the insertion direction, and the maximum width of the connector along the direction in which the stopper extends is greater than the height of the connecting slot. In this technical solution, since the maximum width of the connector along the direction in which the stopper extends is greater than the height of the connecting slot, the relative position of the connector and the connecting slot, as well as the insertion depth, can be restricted, making insertion more convenient.

[0016] In a possible implementation, a first positioning hole is provided on the side wall and / or outer wall of the connecting groove, and a second positioning hole or a positioning shaft that matches the first positioning hole is provided at a corresponding position of the connecting plug.

[0017] In one possible implementation, at least some of the pre-compression springs are waisted. In the above technical solution, at least some of the pre-compression springs are waisted, and the diameters at both ends of the pre-compression springs are larger than the diameter at the middle. This pre-compression spring can reserve space for the connector, reducing the impact of the connector's placement on the pre-compression spring density, and thereby reducing the impact on the support performance of the elastic module and elastic pad.

[0018] In one possible implementation, some of the pre-compression springs are waist-drum-shaped, with the waist-drum-shaped pre-compression springs and waist-drum-shaped pre-compression springs arranged alternately. In another possible implementation, some of the pre-compression springs on the outer edge of the elastic module are waist-drum-shaped, with the waist-drum-shaped pre-compression springs and waist-drum-shaped pre-compression springs arranged alternately along the outer edge of the elastic module. In the above technical solution, the staggered arrangement of the waist-drum-shaped pre-compression springs and waist-drum-shaped pre-compression springs increases the density of the pre-compression springs, thereby improving the support performance of the elastic module and the elastic pad. Furthermore, the side surfaces of the elastic module are made smoother and more beautiful.

[0019] In one possible implementation, the elastic module further includes an auxiliary filling unit, the cross section of the auxiliary filling unit is elliptical, the length of the major axis of the maximum cross section of the auxiliary filling unit is the same as the length of the diameter of the pre-compression spring, and the length of the minor axis of the maximum cross section of the auxiliary filling unit is less than or equal to the length of the radius of the pre-compression spring;

[0020] The auxiliary filling unit is provided with an auxiliary connecting piece for cooperating with the connecting plug-in.

[0021] In a possible implementation, the pre-compression spring sleeve is provided with two or more connecting pieces. When the pre-compression spring is high, the effect of only one connecting piece is limited. By providing two or more connecting pieces, a better connection effect can be achieved.

[0022] An elastic pad comprises the elastic module with the connection structure.

[0023] The present invention employs a connector mounted on a pre-compressed spring and a connector plugged into a connecting slot. The slot and the connector cooperate to connect the central portion of the pre-compressed spring. While ensuring that the pre-compressed springs do not separate from each other, the top and / or bottom ends of the pre-compressed springs are not directly connected, ensuring that the pre-compressed springs are relatively independent and can independently withstand loads. The elastic module and elastic pad with this structure can deform synchronously with the body's posture, providing high comfort and support performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is an exploded view of a pre-compression spring and a connecting member in Example 1;

[0025] FIG2 is a schematic structural diagram of the pre-compression spring and the connecting member after assembly in Example 1;

[0026] FIG3 is a front view of the pre-compression spring and the connecting member after assembly in Example 1;

[0027] FIG4 is a left side view of the pre-compression spring and the connecting member after assembly in Example 1;

[0028] FIG5 is a right side view of the pre-compression spring and the connecting member after assembly in Example 1;

[0029] FIG6 is a top view of the pre-compression spring and the connecting member after assembly in Example 1;

[0030] FIG7 is a bottom view of the pre-compression spring and the connecting member after assembly in Example 1;

[0031] FIG8 is a schematic diagram of a pre-compression spring connected via a connecting member in Example 1;

[0032] FIG9 is a schematic structural diagram of the elastic module in Example 1;

[0033] FIG10 a is an exploded view of the pre-compression spring and the connecting member in the second embodiment;

[0034] FIG10 b is a schematic structural diagram of the T-shaped protrusion 224 of Example 2;

[0035] FIG10c is a schematic structural diagram of a T-shaped groove in Example 2;

[0036] FIG11 is a schematic structural diagram of the pre-compression spring and the connecting member after assembly in Example 2;

[0037] FIG12 is a front view of the pre-compression spring and the connector after assembly in Example 2;

[0038] FIG13 is a rear view of the pre-compression spring and the connector after assembly in the second embodiment;

[0039] FIG14 is a left side view of the pre-compression spring and the connector after assembly in the second embodiment;

[0040] FIG15 is a right side view of the pre-compression spring and the connector after assembly in Example 2;

[0041] FIG16 is a top view of the pre-compression spring and the connector after assembly in Example 2;

[0042] FIG17 is a bottom view of the pre-compression spring and the connector after assembly in Example 2;

[0043] FIG18 is a schematic structural diagram of a connecting member in Example 2;

[0044] FIG19 is a schematic diagram of the connection of the connecting member in the second embodiment;

[0045] Figure 20 is a schematic diagram of the connection of the connecting member in Example 2;

[0046] FIG21 is a schematic diagram of a plurality of pre-compression springs connected by a connector in Example 2;

[0047] FIG22 is an exploded view of the pre-compression spring and the connecting member in Example 3;

[0048] FIG23 is a schematic diagram of the structure of the pre-compression spring and the connecting member after assembly in Example 3;

[0049] FIG24 is a front view of the pre-compression spring and the connector after assembly in Example 3;

[0050] FIG25 is a rear view of the pre-compression spring and the connector after assembly in Example 3;

[0051] FIG26 is a left side view of the pre-compression spring and the connector after assembly in Example 3;

[0052] FIG27 is a right side view of the pre-compression spring and the connector after assembly in Example 3;

[0053] FIG28 is a top view of the pre-compression spring and the connector after assembly in Example 3;

[0054] FIG29 is a bottom view of the pre-compression spring and the connector after assembly in Example 3;

[0055] Figure 30 is a schematic structural diagram of the connecting member in Example 3;

[0056] Figure 31 is a schematic diagram of the connection of the connecting member in Example 3;

[0057] Figure 32 is a schematic diagram of the connection of the connecting member in Example 3;

[0058] FIG33 is a schematic diagram of a plurality of pre-compression springs connected by a connector in Example 3;

[0059] FIG34 is an exploded view of the pre-compression spring and the connecting member in the fourth embodiment;

[0060] FIG35 is a schematic structural diagram of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0061] FIG36 is a front view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0062] FIG37 is a rear view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0063] FIG38 is a left side view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0064] FIG39 is a right side view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0065] FIG40 is a top view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0066] FIG41 is a bottom view of the pre-compression spring and the connector after assembly in the fourth embodiment;

[0067] FIG42 is a schematic diagram of a pre-compression spring connected via a connector in the fourth embodiment;

[0068] FIG43 is a schematic diagram of a pre-compression spring connected via a connector in Example 4;

[0069] FIG44 is an exploded view of the elastic module in the fourth embodiment;

[0070] FIG45 is a schematic structural diagram of the elastic module in the fourth embodiment;

[0071] FIG46 is a schematic structural diagram of a pre-compression spring provided with a connector in the fifth embodiment.

[0072] FIG47 is a schematic diagram of a pre-compression spring connected via a connector in Example 5;

[0073] FIG48 is a schematic diagram of a pre-compression spring connected via a connector in Example 5;

[0074] FIG49 is a schematic structural diagram of a pre-compression spring and a connecting member in Example 6;

[0075] Figure 50 is a front view of the pre-compression spring and the connecting member in Example 6;

[0076] Figure 51 is a top view of the pre-compression spring and the connecting member in Example 6;

[0077] FIG52 is a schematic structural diagram of the elastic module in Example 6;

[0078] FIG53 is a front view of the elastic module in Example 6;

[0079] FIG54 is a right side view of the elastic module in Example 6;

[0080] FIG55 is a top view of the elastic module in Example 6;

[0081] The reference numerals in the figure are: 1-pre-compression spring, 11-spring, 12-cloth cover, 2-connecting piece, 21-connecting groove, 211-opening, 212-first positioning hole, 213-plug interface, 22-connecting plug-in, 221-front convex buckle, 222-rear concave slot; 223-limiting and disengagement part; 224-T-shaped protrusion; 2241-positioning sub-component; 225-T-shaped groove; 2251-positioning mother part; 226-positioning pin; 227-insert; 3-ribbon; 4-auxiliary filling unit; 41-auxiliary connecting piece. DETAILED DESCRIPTION

[0082] 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.

[0083] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly defined, directional words such as the terms "height", "upper end", "top", "bottom", "inside", "outside", "up", "down", "front", "back" and the like indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention.

[0084] The "plug-in direction" in this application refers to the direction of movement of the connecting plug when it enters the connecting slot, and the "vertical direction" refers to the direction of the elastic force of the pre-compression spring.

[0085] Example 1

[0086] The pre-compression spring 1 used in Examples 1 to 6 is a pre-compression spring 1 implemented in an independent bag. Taking Example 1 as an example, as shown in Figures 1-2, it includes a spring 11 and a cloth cover 12. The spring 11 is a waisted spring, and the spring 11 is covered by the cloth cover 12. The cloth cover 12 is inserted into the rear end of the spring 11, pinched and knotted, and the knot is pushed into the closing ring of the spring 11 or the hole in the top cover to form the pre-compression spring 1. Another method of pre-compression spring structure includes a top cover, a base, and a cloth cover or a strap connected between the top cover and the base. The spring is placed in a cavity surrounded by the top cover, base, and cloth cover.

[0087] In other possible implementations, the pre-compression spring 1 may be a spring that can be pre-compressed in any manner, including but not limited to a pre-compression spring that is pre-compressed by a flexible belt, a net, or other materials.

[0088] As shown in FIG. 9 , the spring module of this embodiment includes a plurality of pre-compression springs arranged in a staggered manner, and adjacent sides of the pre-compression springs are connected by a connecting member 2 .

[0089] Figures 1 to 7 are various views of the pre-compression spring 1 and the connecting member 2 after assembly. The connecting member 2 is sleeved on the middle part of the pre-compression spring 1. The connecting member 2 has a connecting structure on the four sides of the pre-compression spring. The four connecting structures form a quadrilateral. The connecting structure includes a connecting groove 21 and a connecting plug-in 22. The connecting member 2 is provided with four connecting grooves 21. Each connecting groove 21 has two opposite openings 211 on the side. The openings 211 can respectively insert a connecting plug-in 22. In this embodiment, one end of the connecting plug-in 22 is provided with a front convex buckle 221 and a rear convex-concave slot 222. The front convex buckle 221 can partially enter the rear convex-concave slot 222 of another pre-compression spring and be snapped into the rear convex-concave slot 222.

[0090] Furthermore, a limiting and releasing portion 223 extending perpendicular to the plug-in direction is provided on the front convex buckle 221, and the limiting portion is suspended from the buckle body. The limiting portion 223 makes the cross-section of the front convex buckle 221 larger than the opening 211 of the connecting groove 21, so that the front convex buckle 221 passes through the connecting groove 21 partly beyond the cross-sectional extension line of the connecting groove 21, squeezing the limiting and releasing portion toward the middle, and the structure of the front convex buckle 221 is elastic and can be detached from the rear concave buckle slot.

[0091] As shown in Figures 8 and 9, considering that the elastic module can be expanded by connecting pre-compression springs 1, or two elastic modules can be spliced ​​together, in this embodiment, each connector 2 is provided with four connecting slots 21 to increase the degree of freedom of interconnection of pre-compression springs 1. Specifically, the connecting slot 21 has two opposing openings 211, each of which is inserted with a forward protruding buckle 221 or a rearward concave buckle 222. The four connecting plugs 22 provided on each pre-compression spring 1 respectively cooperate with the connecting structures 2 on the other four pre-compression springs 1, so that two adjacent rows of pre-compression springs 1 in the elastic module are staggered.

[0092] The pre-compression spring 1 located on the outer edge of the elastic module is connected only to two pre-compression springs 1. Therefore, the connector 2 mounted on the outer pre-compression spring 1 only needs to be connected to two connecting plugs 22 through the connecting slots 21 (correspondingly, only one or two connecting slots 21 need to be provided on the connector 2) to achieve the connection between the outer pre-compression spring 1 and the inner pre-compression spring 1. In this embodiment, as shown in Figure 9, the connector 2 on the outer pre-compression spring 1 is also provided with four connecting slots 21. The outer pre-compression springs 1 are connected by providing additional connecting plugs 22 or webbing 3 on the connecting slots 21, making the elastic module more aesthetically pleasing and having higher connection reliability.

[0093] Example 2

[0094] Figures 10 to 18 are schematic diagrams of the pre-compression spring 1 and the connecting structure 2 in Example 2. The structure of the pre-compression spring 1 and the connecting member 2 in Example 2 is the same as that in Example 1, both are sleeved on the middle part of the pre-compression spring and have T-shaped protrusions 224 and T-shaped grooves 225 on the four sides. The main difference is that the connecting structure in Example 2 is on the four corners of the pre-compression spring, and the connecting structure is a T-shaped protrusion 224 and a T-shaped groove 225 provided on one end of the plug-in 22.

[0095] Figure 10 illustrates the specific structure of the T-shaped protrusion 224 and the T-shaped groove 225. A positioning member 2241 protrudes from the T-shaped protrusion 224, extending parallel to the insertion direction. A corresponding position on the T-shaped groove 225 includes a positioning member 2251, which mates with the positioning member 2241. The T-shaped groove 225 engages the T-shaped groove 225, restricting relative movement of the two connected connectors 22 in the insertion direction. The positioning member 2241 is received within the positioning member 2251, restricting vertical relative movement of the two connected connectors 22.

[0096] Figures 19 and 20 show the connection schematic diagrams between the connecting structures 2 in Example 2. The T-shaped protrusion 224 slides into the T-shaped groove 225 from the vertical direction to realize the connection between the two connecting structures 2. The structure after the pre-compression spring 1 is connected through the connecting structure 2 is shown in Figure 21.

[0097] T-shaped protrusions 224 and T-shaped grooves 225 are arranged at intervals on the four corners of a pre-compression spring 1. They can be arranged on the same horizontal plane. Since the pre-compression spring has elasticity, it can still be plugged in from the vertical direction.

[0098] Example 3

[0099] Figures 22 to 29 show the pre-compression spring 1 and the connecting structure 2 in the third embodiment. The structure of the pre-compression spring 1 and the connecting member 2 in the third embodiment is basically the same as that in the first embodiment. The main difference is that only one connecting plug 22 is inserted into the connecting groove 21.

[0100] Specifically, as shown in Figures 22 and 30 , the two openings 211 of the connecting slot 21 are connected, and a first positioning hole 212 is defined on the outer wall of the connecting slot 21. The connecting plug 22 has a connected front convex buckle 221 and a rear concave slot 222. A positioning pin 226 is provided in the middle of the connecting plug 22 to engage with the first positioning hole 212. When the connecting plug 22 is plugged into the connecting slot 21, the positioning pin 226 passes through the first positioning hole 212 to secure the connecting plug 22.

[0101] Figures 31 and 32 are connection diagrams of the connecting structure 2 in Example 3. The protrusion 227 of the connecting plug-in 22 enters the cavity 222 of the front connecting plug-in 22 to complete the connection. The structure after the pre-compression spring 1 is connected through the connecting structure 2 is shown in Figure 33.

[0102] Example 4

[0103] Figures 34-41 illustrate the pre-compression spring 1 and connection structure 2 of the fourth embodiment. The main difference between the fourth embodiment and the first embodiment lies in the structure of the connection plug 22. In this embodiment, each connection slot 21 receives only one connection plug 22, which has a forward protruding buckle 221 and a rearward protruding buckle 222.

[0104] As shown in Figures 42 and 43, in the fourth embodiment, two connecting slots 21 of the connector 2 are connected to connecting plugs 22. The connecting plugs 22 are separated by a forward protruding buckle 221 and a rearward recessed groove 222, which are fixed to the connecting slot 21. The forward protruding buckle 221 has two parallel claws, and the rearward recess has two correspondingly separated grooves, which makes the connection between the two more precise. The forward protruding buckles 221 of the two connecting plugs 22 respectively cooperate with the rearward recess 222 of the front row connecting plug 22, thereby connecting the two rows of pre-compression springs 1, which are arranged in a staggered manner.

[0105] Referring again to Figures 44 and 45 , in this embodiment, the outer edge of the elastic module is further provided with another connecting plug 22 having two oriented tabs 227 and an auxiliary filling unit 4. The pre-compressed springs are staggered. At one end, the pre-compressed springs cannot be closely arranged, but are filled with the auxiliary filling unit to maintain a uniform outer perimeter. The connecting plug 22 and auxiliary filling unit 4 provided along the outer edge contribute to a more regular and aesthetically pleasing appearance of the elastic module.

[0106] The auxiliary filling unit 4 has an elliptical cross-section. Since the pre-compression spring 1 is a waisted spring 11, the auxiliary filling unit 4 is correspondingly designed as a shuttle shape that tapers from the middle to the ends. Specifically, the length of the major axis of the auxiliary filling unit 4's maximum cross-section is the same as the diameter of the pre-compression spring 1, and the length of the minor axis of the auxiliary filling unit 4's maximum cross-section is less than or equal to the radius of the pre-compression spring 1. An auxiliary connector 41 is provided in the middle of the auxiliary filling unit 4. The auxiliary connector 41 can connect to the connector plug 22 on the pre-compression spring 1, allowing the auxiliary filling unit 4 to be positioned between the two extended pre-compression springs 1.

[0107] Example 5

[0108] As shown in Figures 46 to 48, in this embodiment, the connecting grooves 21 in the connecting parts 2 of adjacent pre-compression springs 1 are close to each other, and each opening 211 of the connecting grooves 21 on the adjacent pre-compression springs 1 is arranged in parallel, and the connecting plug-in 22 has two unidirectional plug-ins 227. In other possible implementations, the connecting plug-in 22 is a U-shaped plug-in, and the two arms of the U-shaped plug-in are respectively plugged into a connecting groove 21.

[0109] When the pre-compression springs 1 need to be connected, the connecting pieces 2 on the two pre-compression springs 1 are simply arranged side by side, and then the two inserts 227 are respectively inserted into the two connecting grooves 21. As can be seen from Figure 48, the pre-compression springs 1 of the elastic module in this embodiment are aligned.

[0110] Specifically, the two opposite connecting grooves 21 of the pre-compression spring 1 are respectively close to the front of the connecting groove 21 of a pre-compression spring and plugged in through the link plug 22 to realize the connection of the pre-compression springs 1 in the same row. Afterwards, the pre-compression springs 1 in each row are arranged, and the two pre-compression springs 1 at the head and tail of each row are plugged in with the pre-compression springs 1 at the head and tail of the adjacent row through the connecting plug 22 to realize the assembly of the elastic module, which is easy to operate.

[0111] Alternatively, in other possible implementations, each pre-compression spring 1 is brought into contact with the front of the connection grooves of the adjacent pre-compression springs 1 in the same row and the adjacent pre-compression springs 1 in the same column through the connection grooves 21 in different directions on the connecting member 2, and then respectively connected through the linking plugs 22 to realize the assembly of the elastic module. Although this connection method is relatively cumbersome, it has higher structural stability.

[0112] Example 6

[0113] Figures 49 to 55 are schematic structural diagrams of the pre-compression spring 1, the connecting member 2 and the connecting plug-in 22 in this embodiment. In this embodiment, the connecting plug-in 22 has two plug-in pieces 227 arranged back to back, and the upper and lower walls of the connecting groove 21 are respectively provided with plug-in interfaces 213 corresponding to the front protruding buckle 221. The two rows of pre-compression springs 1 are staggered and connected through the connecting plug-in 22.

[0114] The above are merely preferred embodiments of the present invention, and therefore cannot be used to limit the scope of the present invention. In other words, equivalent changes and modifications made according to the scope of the present invention and the contents of the specification should still fall within the scope of the present invention. Industrial Applicability

[0115] The present invention discloses an elastic module and an elastic pad with a connecting structure, wherein the elastic module includes an elastic module, including a pre-compression spring and a connecting piece, the connecting piece is sleeved on the middle part of the pre-compression spring, the connecting piece has four connecting structures on the side of the pre-compression spring, the four connecting structures form a quadrilateral, and the pre-compression springs are connected through the connecting structure; wherein the connecting structure includes a connecting groove and a connecting plug-in, the connecting groove is open on both sides, the connecting plug-in is plugged into the connecting groove of the pre-compression spring, and connects two adjacent pre-compression springs. The pre-compression spring of the present invention is sleeved with a connecting piece, and the middle part of the pre-compression spring is connected by the cooperation of the connecting groove and the connecting plug-in in the connecting piece. While ensuring that the pre-compression springs do not separate from each other, the top and / or bottom ends of the pre-compression springs are not directly connected, ensuring that the pre-compression springs are relatively independent and can bear force independently, and have industrial practicality.

Claims

1. An elastic module with a connection structure, characterized in that: It comprises a pre-compression spring and a connecting piece, wherein the plurality of pre-compression springs are arranged in a staggered manner to form an elastic module, the connecting piece is sleeved on the middle part of the pre-compression spring, the connecting piece has a connecting structure on the four sides of the pre-compression spring, and the pre-compression springs are connected through the connecting structure; Wherein, the connection structure comprises a connection groove and a connection plug-in, the connection groove is open at both sides, and the connection plug-in is plugged into the connection groove of the pre-compression spring to connect two adjacent pre-compression springs.

2. The elastic module according to claim 1, characterized in that: The connecting plug-in unit is plugged into the two connecting slots respectively.

3. The elastic module according to claim 1, characterized in that: At least one connecting plug-in is respectively inserted into the connecting grooves of the two connecting members, and the two connecting plug-ins can be connected to each other or through a third member.

4. The elastic module according to claim 1, characterized in that: The connecting member comprises two opposite connecting grooves, and each of the connecting grooves is connected to one or two pre-compression springs through the connecting plug-in.

5. The elastic module according to claim 4, characterized in that: The pre-compression springs in the front row are connected to the pre-compression springs in the two rear rows at the sides through two opposite connecting grooves.

6. The elastic module according to claim 1, characterized in that: A limiting and disengaging portion perpendicular to the plug-in direction is disposed in the middle of the connecting plug-in, and the maximum width of the connecting plug-in in the extending direction of the limiting portion is greater than the height of the connecting groove.

7. The elastic module according to claim 1, characterized in that: A first positioning hole is arranged on the side wall and / or the outer wall of the connecting groove, and a second positioning hole or a positioning shaft matching with the first positioning hole is arranged at a corresponding position of the connecting plug-in.

8. The elastic module according to claim 1, characterized in that: At least part of the pre-compression spring is waisted.

9. The elastic module according to claim 8, characterized in that: Some of the pre-compression springs are in a waist-drum shape, and the waist-shaped pre-compression springs and the waist-drum-shaped pre-compression springs are arranged alternately.

10. The elastic module according to claim 8, characterized in that: The pre-compression springs at the outer edge of the elastic module are in a waist-drum shape, and the waist-shaped pre-compression springs and the waist-drum-shaped pre-compression springs are alternately arranged at the outer edge of the elastic module.

11. The elastic module according to claim 1, characterized in that: Also includes an auxiliary filling unit, the cross section of the auxiliary filling unit is elliptical, the length of the major axis of the maximum cross section of the auxiliary filling unit is the same as the length of the diameter of the pre-compression spring, and the length of the minor axis of the maximum cross section of the auxiliary filling unit is less than or equal to the length of the radius of the pre-compression spring; The auxiliary filling unit is provided with an auxiliary connecting piece for cooperating and connecting with the connecting plug-in.

12. The elastic module according to claim 1, characterized in that: The pre-compression spring sleeve is provided with two or more connecting members.

13. An elastic pad, characterized in that: The elastic module having a connecting structure comprises any one of claims 1 to 12.

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