Double-layer assemblable and disassemblable elastic unit structure, and functional mattress

Abstract

A double-layer assemblable and disassemblable elastic unit structure, comprising a lower-layer spring module and an upper-layer spring module that can be assembled and disassembled. The lower-layer spring module consists of a plurality of lower spring members, and the upper-layer spring module consists of a plurality of upper spring members. One of each upper spring member and each lower spring member is provided with an insert, and the other is provided with a receptacle, and the insert and the receptacle form a detachable connection. The upper-layer spring module comprises third connecting members, each third connecting member is used for connecting two upper spring members, and the third connecting members are arranged on the ends of the upper spring members distant from the ends thereof in insertion connection with the lower spring members; or every two upper spring members remain independent and unconnected. The lower-layer spring module comprises bases, and the plurality of lower spring members are arranged on the bases. Two adjacent bases can be assembled and disassembled.

Description

Double-layer splicing and disassembling elastic unit structure and functional pad TECHNICAL FIELD

[0001] The present application relates to the technical field of household springs, and in particular to a double-layer splicing and disassembling elastic unit structure and functional pad. BACKGROUND

[0002] Household springs are commonly used in furniture, mattresses, chairs, seats, sofas and other equipment to provide elastic support and shock absorption and buffering, thereby improving the comfort and durability of use. Different household equipment requires different types and shapes of springs.

[0003] Household springs have high elasticity and can support different household equipment to provide good buffering and elastic support. Household springs provide support through elastic deformation and rebound, which is one of the important functions of springs.

[0004] It is known that an existing splicing household functional pad is spliced together by multiple elastic unit structures to achieve flexible combination and customization of the functional pad, which can adapt to the needs of different users. The elastic unit structures are connected by locking or pressure connection, so that the entire mattress has better disassembly and assembly performance. However, the existing splicing household functional pad is related to the splicing of single-layer elastic unit structures, and cannot meet the requirements of double-layer splicing in terms of functional pad height. Therefore, the functional pad is single in use scenarios with height requirements, and still cannot meet the requirements of customers. SUMMARY

[0005] The main technical problem to be solved by the present application is that the existing functional pad cannot meet the requirements of double-layer splicing, and therefore a double-layer splicing and disassembling elastic unit structure is provided.

[0006] In order to solve the above technical problems, the present application provides a double-layer splicing and disassembling elastic unit structure, which comprises a lower spring module and an upper spring module which can be spliced and disassembled; the lower spring module is composed of a plurality of lower spring pieces, and the upper spring module is composed of a plurality of upper spring pieces;

[0007] One of the upper spring pieces and the lower spring pieces is provided with a plug, and the other is provided with an interface, and the plug and the interface form a detachable connection;

[0008] The upper spring module comprises a third connecting piece, the third connecting piece is used for connecting two upper spring pieces, and the third connecting piece is arranged at an end of the upper spring piece away from the plug of the lower spring piece;

[0009] The lower spring module comprises a base, and a plurality of lower spring pieces are arranged on the base; two adjacent bases can be spliced and disassembled;

[0010] The upper spring piece and the lower spring piece are connected to form a connecting body, which has a deformation freedom in the height direction, and the connecting body has a structure with gradually increasing diameter upward or downward at the connection position of the upper spring piece and the lower spring piece.

[0011] In a preferred embodiment, the insert is a conical protrusion, and the interface is a conical cavity; the conical protrusion is inserted into the conical cavity.

[0012] In a preferred embodiment, the upper spring piece comprises an upper conical spring and an upper conical spring fixing sleeve; the upper conical spring is arranged in the upper conical spring fixing sleeve.

[0013] The small end of the upper conical spring fixing sleeve is detachably connected with the lower spring piece.

[0014] In a preferred embodiment, the lower spring piece comprises a lower conical spring and a lower conical spring fixing sleeve; the lower conical spring is arranged in the lower conical spring fixing sleeve.

[0015] The small end of the lower conical spring fixing sleeve is detachably connected with the upper spring piece.

[0016] In a preferred embodiment, the base is integrally arranged with the lower spring piece.

[0017] In a preferred embodiment, the lower spring piece is fixed on the base or the lower spring piece is detachably connected with the base.

[0018] In a preferred embodiment, a first sliding rail is arranged on the base, and a first sliding seat is arranged on the lower spring piece, which is arranged at the end of the lower spring piece away from the insert joint with the upper spring piece.

[0019] The first sliding seat and the first sliding rail are detachably mounted in a sliding manner.

[0020] In a preferred embodiment, a first sliding opening is arranged on one side of the base, and a clamping edge is arranged on the other side.

[0021] A locking piece is arranged at the first sliding opening; the lower spring piece is slid into the first sliding rail through the first sliding seat, and one end of the lower spring piece abuts against the clamping edge, and the other end of the lower spring piece is locked with the first locking piece.

[0022] In a preferred embodiment, a first elastic protrusion is arranged at the first sliding opening, and a first groove is arranged along the edge of the first sliding seat.

[0023] When the first sliding seat slides into the first sliding rail, the first elastic protrusion is clamped into the first groove, and the first elastic protrusion and the first groove cooperate to form the locking part.

[0024] In a preferred embodiment, a plurality of lower spring parts are arranged on the base in a single row or double rows.

[0025] In a preferred embodiment, at least three lower spring parts are arranged on the base in each row.

[0026] In a preferred embodiment, the third connecting part is arranged at the end of the upper spring part and is integrally arranged with the upper spring part.

[0027] The third connecting part is arranged as a buckle connecting part.

[0028] In a preferred embodiment, the connecting mode of the buckle connecting part is one of point touch type buckle, differential type buckle, and elastic sheet type buckle.

[0029] In a preferred embodiment, the third connecting part includes a first connecting head and a second connecting head, and the first connecting head and the second connecting head are staggered distributed on the edge of the upper spring part.

[0030] A clamping groove is arranged on one of the first connecting head and the second connecting head, and an elastic clamping part is arranged on the other connecting head.

[0031] When the first connecting head and the second connecting head are inserted, the elastic clamping part is arranged in the clamping groove to form a locking connection.

[0032] In a preferred embodiment, one of the connecting heads includes an upper clamping plate and a lower clamping plate, and a gap is arranged between the upper clamping plate and the lower clamping plate, and the gap is used for inserting the elastic clamping part.

[0033] The upper clamping part is arranged with the clamping groove, or the upper clamping plate and the lower clamping plate are both arranged with the clamping groove.

[0034] In a preferred embodiment, the other connecting head includes an insertion plate, and the insertion plate is hollow and connected to arrange the elastic clamping part.

[0035] The elastic clamping part is provided with a protruding part, and when the elastic clamping part is clamped into the clamping groove, the protruding part abuts against the bottom edge of the clamping groove.

[0036] In a preferred embodiment, the third connecting part is arranged as a fixing seat, and a plurality of upper spring parts are arranged on the fixing seat.

[0037] The upper spring part is integrally arranged with the fixing seat, and the fixing seats are independently connected or can be connected to form a connection.

[0038] In a preferred embodiment, the third connecting member is arranged as a fixing base, and a plurality of the upper spring members are arranged on the fixing base;

[0039] The upper spring members are fixed on the fixing base or detachably connected with the fixing base, and two of the fixing bases are independently not connected or are connectable by being spliced.

[0040] In a preferred embodiment, the fixing base is provided with a second sliding rail, and the upper spring member is provided with a second sliding seat arranged at an end of the upper spring member away from the lower spring member;

[0041] The second sliding seat and the second sliding rail are detachably mounted in a sliding manner.

[0042] In a preferred embodiment, the fixing base is provided with a second sliding opening corresponding to the second sliding rail, and the second sliding opening is provided with a locking member, and the upper spring member is slid into the second sliding rail by the second sliding seat and is fixed in the second sliding groove by the locking member.

[0043] In a preferred embodiment, a second elastic protrusion is arranged at the second sliding opening, and a second groove is arranged along an edge of the second sliding seat.

[0044] When the second sliding seat is slid into the second sliding rail, the second elastic protrusion is clamped into the second groove, and the second elastic protrusion and the second groove cooperate to form the locking member.

[0045] In a preferred embodiment, the fixing base is provided with a plurality of upper spring members arranged in a single row or double rows.

[0046] In a preferred embodiment, the fixing base is provided with at least three upper spring members arranged in each row.

[0047] The application further provides a double-layer splicable and detachable elastic unit structure, which comprises a lower spring module and an upper spring module that are splicable and detachable.

[0048] One of the upper spring member and the lower spring member is provided with a plug, and the other is provided with an interface, and the plug and the interface are detachably connected.

[0049] Two of the upper spring members are independently not connected, the lower spring module comprises a base, and a plurality of lower spring members are arranged on the base, and adjacent two bases are splicable and detachable.

[0050] The upper spring member and the lower spring member are connected to form a connecting body, the connecting body has a deformation freedom degree along a height direction, and the connecting body has a structure with a gradually increasing diameter upward or downward at a connection position of the upper spring member and the lower spring member; the connecting bodies are independently arranged.

[0051] The application also provides a functional pad, which is spliced by a plurality of elastic unit structures.

[0052] In a preferred embodiment, the functional pad is spliced and assembled by the bases.

[0053] In a preferred embodiment, a soft cushion layer is arranged above the functional pad.

[0054] In a preferred embodiment, the functional pad is covered by a cloth cover.

[0055] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0056] 1. The application provides a double-layer splicable elastic unit structure, which includes an elastic unit structure itself splicable to form a functional pad, spring unit structures arranged to be splicable upward and downward, and the spicable structure of the upper spring module and the lower spring module enables the formed functional pad to have two use modes of single-layer and double-layer, and the height requirement in use can be met by splicing the upper spring module when the single-layer height is insufficient.

[0057] 2. The application provides a double-layer splicable elastic unit structure, which adds a layer of structure on the basis of the existing single-layer functional pad to meet the requirement of double-layer splicing, improve the functional diversification of the functional pad in the use scene with height requirement, and meet the requirement of customers. DETAILED DESCRIPTION

[0058] Fig. 1 is a whole structure diagram of the elastic unit structure in the preferred embodiment of the application;

[0059] Fig. 2 is an exploded structure diagram of the elastic unit structure in the preferred embodiment of the application;

[0060] Fig. 3 is a splicing diagram of the lower spring module and the upper spring module in the preferred embodiment of the application;

[0061] Fig. 4 is a schematic diagram of the lower spring module and the upper spring module after splicing in the preferred embodiment of the application;

[0062] Fig. 5 is a whole structure diagram of the functional pad in the preferred embodiment of the application;

[0063] Figure 6 is a structure diagram of the soft cushion layer laid on the functional cushion in the preferred embodiment of the present application;

[0064] Figure 7 is a structure diagram of the cloth cover of the functional cushion in the preferred embodiment of the present application;

[0065] Figure 8 is a structure diagram of the independent upper spring element in the first embodiment of the present application;

[0066] Figure 9 is a splicing diagram of the elastic unit structure in the first embodiment of the present application;

[0067] Figure 10 is a structure diagram of the lower layer conical spring fixing sleeve and the base integrally arranged in the first embodiment of the present application;

[0068] Figure 11 is a whole structure diagram of the lower layer spring module in the first embodiment of the present application;

[0069] Figure 12 is a structure diagram of the lower layer conical spring fixing sleeve and the base separately arranged in the second embodiment of the present application;

[0070] Figure 13 is a whole structure diagram of the lower layer spring module in the second embodiment of the present application;

[0071] Figure 14 is a structure diagram of the upper spring element in the third embodiment of the present application;

[0072] Figure 15 is a schematic diagram of the upper spring element connected through the third connecting element in the third embodiment of the present application;

[0073] Figure 16 is a structure diagram of the upper layer spring module in the fourth embodiment of the present application;

[0074] Figure 17 is a schematic diagram of the upper spring element connected through the third connecting element in the fourth embodiment of the present application;

[0075] Figure 18 is a splicing schematic diagram of the single-row upper layer spring module in the fourth embodiment of the present application;

[0076] Figure 19 is a structure diagram of the double-row upper layer spring module in the fourth embodiment of the present application;

[0077] Figure 20 is a structure diagram of the double-row upper layer spring module (with built-in spring) in the fourth embodiment of the present application;

[0078] Figure 21 is a structure diagram of the upper layer conical spring fixing sleeve and the fixing base separately arranged in the fifth embodiment of the present application;

[0079] Figure 22 is a structure diagram of the double-row upper layer spring module in the fifth embodiment of the present application.

[0080] Explanation of reference signs: 1, upper spring module; 11, upper spring piece; 111, upper conical spring; 112, upper conical spring fixing sleeve; 113, second sliding seat; 114, second groove; 12, conical protrusion; 13, third connecting piece; 131, first connecting head; 1311, clamping groove; 1312, upper clamping plate; 1313, lower clamping plate; 132, second connecting head; 1321, insertion plate; 1322, elastic clamping piece; 1323, protruding part; 133, fixing seat; 1331, second sliding rail; 1332, second pull-out opening; 1333, second elastic protrusion; 2, lower spring module; 21, lower spring piece; 211, lower conical spring; 212, lower conical spring fixing sleeve; 213, first sliding seat; 214, first groove; 22, conical cavity; 23, base; 231, first sliding rail; 232, first pull-out opening; 233, clamping edge; 234, first elastic protrusion; 3, elastic unit structure; 4, functional pad; 5, soft pad layer; 6, cloth cover. DETAILED DESCRIPTION

[0081] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0082] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0083] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can be detachable connection, or integral connection, can be mechanical connection, can be electrical connection, can be direct connection, can be indirect connection through an intermediate medium, can be internal communication of two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0084] Referring to FIG. 1-7, the present embodiment provides a double-layer splicing and disassembling elastic unit structure 3, which comprises a lower-layer spring module 2 and an upper-layer spring module 1, the lower-layer spring module 2 is composed of a plurality of lower-layer spring pieces 21, and the upper-layer spring module 1 is composed of a plurality of upper-layer spring pieces 11.

[0085] The upper-layer spring piece 11 comprises an upper-layer conical spring 111 and an upper-layer conical spring fixing sleeve 112, and the upper-layer conical spring 111 is arranged in the upper-layer conical spring fixing sleeve 112. The lower-layer spring piece 21 comprises a lower-layer conical spring 211 and a lower-layer conical spring fixing sleeve 212, and the lower-layer conical spring 211 is arranged in the lower-layer conical spring fixing sleeve 212.

[0086] The splicing and disassembling structure of the lower-layer spring module 2 and the upper-layer spring module 1 is designed to use the upper-and-lower insertion structure of the upper-layer spring piece 11 and the lower-layer spring piece 21 as the splicing structure. One of the upper-layer spring piece 11 and the lower-layer spring piece 21 is provided with an insertion piece, and the other is provided with an interface, and the insertion piece and the interface form a detachable connection.

[0087] Specifically, the insertion piece is a conical protrusion 12 protruding from the end surface of the upper-layer conical spring fixing sleeve 112 and arranged at the small end of the upper-layer conical spring fixing sleeve 112. The interface is a conical cavity 22 recessed in the end surface of the lower-layer conical spring fixing sleeve 212 and arranged at the small end of the lower-layer conical spring fixing sleeve 212, and the conical protrusion 12 is inserted into the conical cavity 22 to form a detachable connection.

[0088] The lower-layer spring module 2 comprises a base 23, and a plurality of lower-layer spring pieces 21 are arranged on the base 23, and the lower-layer spring pieces 21 can be selectively fixed on the base 23 in a detachable or non-detachable manner. A plurality of lower-layer spring pieces 21 are arranged on the base 23 in a single row or double rows, and three lower-layer spring pieces 21 are arranged on each row of the base 23.

[0089] The upper-layer spring module 1 can be arranged to be independently composed of a plurality of upper-layer spring pieces 11, which are spliced on the lower-layer spring module 2 one by one, and the upper-layer spring pieces 11 are independently connected structures except for the splicing with the lower-layer spring. Or the upper-layer spring pieces can be arranged to be connected by a plurality of third connecting pieces 13, which are connected to form a connecting body first, and then spliced on the lower-layer spring module 2, and the upper-layer spring pieces 11 are connected together.

[0090] Through the splicing of the upper spring module 1 and the lower spring module 2, a double-layer elastic unit structure 3 is formed, which can be spliced together to form a functional mat 4. The splicing structure of the double-layer elastic unit structure 3 is arranged on the base 23 of the lower spring module 2, and the base 23 that can be spliced together is used to realize the splicing of multiple double-layer elastic unit structures 3.

[0091] A soft cushion layer 5 can be arranged above the functional mat 4, which is arranged above the upper spring module 1 to increase the softness and comfort of the functional mat 4. The functional mat 4 is used with a cloth cover 6 on the outside of the functional mat 4, which is more beautiful.

[0092] The first embodiment is shown in FIGS. 8-11.

[0093] An elastic unit structure 3 is provided, which includes upper spring modules 1 and lower spring modules 2 that can be spliced together.

[0094] The upper spring module 1 is composed of multiple independent upper spring pieces 11, and the upper spring piece 11 includes a conical protrusion 12.

[0095] The lower spring module 2 is composed of multiple independent lower spring pieces 21 spliced on the base 23, and the lower spring piece 21 includes a conical cavity 22.

[0096] The lower spring module 2 is arranged as a whole structure, and the lower spring piece 21 is fixed on the base 23 and cannot be separated from the base 23. The lower spring piece 21 can be fixed on the base 23 through a fixed structure, or the lower conical spring fixing sleeve 212 is arranged integrally with the base 23.

[0097] The elastic unit structure 3 is spliced by inserting the multiple independent upper spring pieces 11 of the upper spring module 1 into the base, and the conical protrusion 12 is inserted into the conical cavity 22, thereby completing the splicing of the elastic unit structure 3.

[0098] The second embodiment is shown in FIGS. 12-13.

[0099] An elastic unit structure 3 is provided, which includes upper spring modules 1 and lower spring modules 2 that can be spliced together.

[0100] The upper spring module 1 is composed of multiple independent upper spring pieces 11, and the upper spring piece 11 includes a conical protrusion 12.

[0101] The lower spring module 2 is composed of multiple independent lower spring pieces 21 spliced on the base 23, and the lower spring piece 21 includes a conical cavity 22.

[0102] The lower spring module 2 is provided in a split structure, i.e. the lower spring pieces 21 are detachably connected to the base 23 and can be detached from the base 23. The specific structure is as follows:

[0103] A first sliding rail 231 is provided on the base 23, and a first sliding seat 213 is provided on the lower spring piece 21, which is arranged at the large conical end of the lower spring piece 21 and forms a pull-out detachable connection with the first sliding rail 231. A first pull-out opening 232 is provided on one side of the base 23 and communicates with the first sliding rail 231, and a clamping edge 233 is provided on the other side of the base 23 opposite the first pull-out opening 232. The first pull-out opening 232 is used for sliding the first sliding seat 213 of the lower spring piece 21 into the first sliding rail 231. A locking piece is provided at the first pull-out opening 232. When the first lower spring piece 21 is slid into the first sliding rail 231 of the base 23 by a sufficient amount, the first lower spring piece 21 abuts against the clamping edge 233. After the last lower spring piece 21 is slid into the base 23, the locking piece is used to lock the last lower spring piece 21, so as to limit the last lower spring piece 21 from sliding out of the first sliding rail 231, thereby fixing the plurality of lower spring pieces 21 on the base 23.

[0104] The locking piece can adopt an existing buckle connection or plug-in connection, and as a structure capable of achieving locking or unlocking, the locking piece involved in the present embodiment can be used.

[0105] In the present embodiment, a specific structure of the locking piece is provided. A first elastic protrusion 234 is provided at the first pull-out opening 232, and a first groove 214 is provided along the edge of the first sliding seat 213. When the first sliding seat 213 of the last lower spring piece 21 is slid into the first sliding rail 231, the first elastic protrusion 234 is clamped into the first groove 214 of the last lower spring piece 21, and the first elastic protrusion 234 cooperates with the first groove 214 to form the locking piece. When disassembly is required, only the first elastic protrusion 234 needs to be pressed to deform and disengage from the first groove 214.

[0106] The third embodiment is shown in FIGS. 14-15.

[0107] On the basis of the first embodiment or the second embodiment, a different elastic unit structure 3 is provided, which is different from the first embodiment and the second embodiment. The elastic unit structure 3 includes upper spring modules 1 and lower spring modules 2 that can be spliced with each other.

[0108] The lower spring module 2 is composed of a plurality of independent lower spring pieces 21 assembled on a base 23. The lower spring piece 21 includes a conical cavity 22, and the lower spring piece 21 can be fixed on the base 23 or form a detachable connection with the base 23.

[0109] The difference is that in this embodiment, the upper spring module 1 is formed by a plurality of upper spring pieces 11 connected by third connecting pieces 13. The upper spring piece 11 includes a conical protrusion 12.

[0110] The large end of the conical upper spring fixing sleeve 112 in the upper spring piece 11 is provided with a connecting buckle structure along the edge, which is the third connecting piece 13, and can realize the connection of two upper spring pieces 11.

[0111] The third connecting piece 13 includes a first connecting head 131 and a second connecting head 132, which are staggered on the edge of the large end of the conical upper spring fixing sleeve 112.

[0112] The first connecting head 131 is provided with a clamping groove 1311, and the first connecting head 131 includes an upper clamping plate 1312 and a lower clamping plate 1313, and a gap is provided between the upper clamping plate 1312 and the lower clamping plate 1313. The upper clamping plate 1312 and the lower clamping plate 1313 are provided through the clamping groove 1311 in the vertical direction.

[0113] The second connecting head 132 is provided with an elastic clamping piece 1322, and the second connecting head 132 includes an insertion plate 1321 which is hollow and connected with the elastic clamping piece 1322, and the elastic clamping piece 1322 is provided with a protruding part 1323.

[0114] When two upper elastic pieces are connected, the second connecting head 132 of one of the upper elastic pieces is inserted into the first connecting head 131 of the other upper spring piece 11. By inserting the insertion plate 1321 into the gap between the upper clamping plate 1312 and the lower clamping plate 1313, the elastic clamping piece 1322 passes through the upper clamping plate 1312 and the lower clamping plate 1313 and is accommodated in the clamping groove 1311. Under the elastic force of the elastic clamping piece 1322, the elastic clamping piece 1322 protrudes upward and is clamped in the clamping groove 1311 provided in the upper clamping plate 1312, forming a clamping and fixed connection. When the elastic clamping piece 1322 protrudes upward, the protruding part 1323 abuts against the bottom edge of the clamping groove 1311 provided in the upper clamping plate 1312, preventing the elastic clamping piece 1322 from protruding excessively. When it is necessary to release the clamping, only need to press the elastic clamping piece 1322 downward in the clamping groove 1311, so that it is aligned with the gap, and then the insertion plate 1321 can be pulled out.

[0115] In this embodiment, the connecting buckle structure as the third connecting piece 13 can adopt one of the point touch buckle, differential buckle and elastic piece buckle, which can realize locking or unlocking as the structure involved in this embodiment.

[0116] The fourth embodiment is shown in Figures 16-20.

[0117] On the basis of the third embodiment, an elastic unit structure 3 different from the third embodiment is provided.

[0118] The difference is that in the present embodiment, the upper spring module 1 is connected by a plurality of upper spring pieces 11 through a third connecting piece 13, the third connecting piece 13 is not provided as a buckle connection, and the third connecting piece 13 is a fixed seat 133. A plurality of upper spring pieces 11 can be arranged on the fixed seat 133, and the connection of the upper spring pieces 11 is realized through the fixed seat 133.

[0119] The fixed seat 133 and the upper spring piece 11 are a connected structure, that is, the upper spring module 1 is provided as a whole structure, and the upper spring piece 11 is fixed on the fixed seat 133 and cannot be separated from the fixed seat 133. The upper spring piece 11 can be fixed on the fixed seat 133 through a fixed structure, or the upper layer conical spring fixing sleeve 112 thereof is integrally provided with the fixed seat 133.

[0120] The fixed seat 133 and the upper spring piece 11 are a connected structure, which can be provided as a single-row connected structure or a double-row connected structure, and three upper spring pieces 11 are arranged on the fixed seat 133.

[0121] The fifth embodiment is shown in FIGS. 21-22.

[0122] On the basis of the fourth embodiment, an elastic unit structure 3 different from the fourth embodiment is provided.

[0123] The difference is that in the present embodiment, the upper spring module 1 is connected by a plurality of upper spring pieces 11 through a third connecting piece 13, the third connecting piece 13 is not provided on the upper spring piece 11, and the third connecting piece 13 is an independent connecting piece.

[0124] The third connecting piece 13 is a fixed seat 133. A plurality of upper spring pieces 11 can be arranged on the fixed seat 133, and the connection of the upper spring pieces 11 is realized through the fixed seat 133.

[0125] The fixed seat 133 and the upper spring piece 11 are a detachable connection structure. The specific structure is as follows:

[0126] A second sliding rail 1331 is arranged on the fixed seat 133, and a second sliding seat 113 is arranged on the upper spring piece 11, the second sliding seat 113 being arranged at the conical large end of the upper spring piece 11; the second sliding seat 113 and the second sliding rail 1331 form a pull-out type detachable installation.

[0127] A second pull-out opening 1332 is arranged on one side of the fixing base 133, which is communicated with the second slide rail 1331, and is used for sliding the second slide base 113 of the upper spring member 11 into the second slide rail 1331. A locking member is arranged at the second pull-out opening 1332, and when the second slide rail 1331 of the fixing base 133 is slid into enough upper spring members 11, the last upper spring member 11 is locked by the locking member after being slid into the fixing base 133, and the last upper spring member 11 is limited to slide out of the second slide rail 1331, so as to fix the plurality of upper spring members 11 on the fixing base 133.

[0128] The locking member can adopt the existing buckle connection or plug-in connection, and can be the locking member related in the embodiment as the structure capable of realizing locking or unlocking.

[0129] A specific structure of the locking member is provided in the embodiment, a second elastic protrusion 1333 is arranged at the second pull-out opening 1332, and a second groove 114 is arranged along the edge of the second slide base 113, when the second slide base 113 of the last upper spring member 11 is slid into the second slide rail 1331, the second elastic protrusion 1333 is clamped into the second groove 114 of the last upper spring member 11, and the second elastic protrusion 1333 and the second groove 114 cooperatively form the locking member. When disassembly is needed, the second elastic protrusion 1333 is only needed to be pressed to deform and be separated from the second groove 114.

[0130] The above is only the preferred specific embodiment of the present application, but the design concept of the present application is not limited to this, and any skilled person in the art can make non-essential changes to the present application within the technical range disclosed by the present application, and the changes also belong to the behavior of infringing the protection range of the present application. Industrial applicability

[0131] The present application provides a double-layer splicable elastic unit structure, which comprises an elastic unit structure itself capable of being spliced into a functional pad, spring unit structures arranged with upper and lower spring modules capable of being spliced vertically, and the spicable structure of the upper and lower spring modules enables the formed functional pad to have two use modes of single-layer and double-layer, and when the single-layer height is insufficient, the upper spring module can be spliced to increase the height, so as to meet the height requirement in use. Moreover, one layer of structure is added on the basis of the existing single-layer functional pad, the requirement of double-layer splicing is met, the functional pad is improved in functional diversification in the use scene with height requirement, the requirement of customers is met, and good industrial applicability is achieved.

Claims

1. A double-layer, detachable and reconfigurable elastic unit structure, characterized in that: The elastic unit structure includes a lower spring module and an upper spring module that can be assembled and disassembled; the lower spring module is composed of multiple lower spring components, and the upper spring module is composed of multiple upper spring components. One of the upper and lower spring components is provided with a plug, and the other spring component is provided with an interface, wherein the plug and the interface form a detachable connection. The upper spring module includes a third connector, which is used for connecting two upper spring components. The third connector is located at the end of the upper spring component away from where it is inserted into the lower spring component. The lower spring module includes a base, and multiple lower spring components are disposed on the base; adjacent bases can be spliced ​​and disassembled. The upper spring member and the lower spring member are connected to form a connecting body. The connecting body has a degree of freedom of deformation along the height direction. The connecting body has a structure in which the diameter gradually increases upward or downward at the connection point of the upper spring member and the lower spring member.

2. The double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The plug is configured as a tapered protrusion, and the interface is configured as a tapered cavity; the tapered protrusion is inserted into the tapered cavity.

3. The double-layer, detachable, elastic unit structure according to claim 2, characterized in that: The upper spring component includes an upper conical spring and an upper conical spring retaining sleeve; the upper conical spring is installed inside the upper conical spring retaining sleeve; The tapered end of the upper tapered spring fixing sleeve is detachably connected to the lower spring component.

4. The double-layer, detachable, elastic unit structure according to claim 3, characterized in that: The lower spring component includes a lower conical spring and a lower conical spring retaining sleeve; the lower conical spring is installed inside the lower conical spring retaining sleeve; The tapered end of the lower tapered spring fixing sleeve is detachably connected to the upper spring component.

5. The double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The base and the lower spring are integrally formed.

6. The double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The lower spring component is fixed to the base or the lower spring component is detachably connected to the base.

7. The double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The base is provided with a first slide rail, and the lower spring member is provided with a first slide block, which is located at the end of the lower spring member away from the insertion of the upper spring member; The first slide block and the first slide rail are designed to be removable and detachable.

8. A double-layer, detachable, elastic unit structure according to claim 7, characterized in that: A first pull-out opening is provided on one side of the base, and a retaining edge is provided on the other side; A locking element is provided at the first pull-out opening; the lower spring element slides into the first slide rail with the first slide block, and one end abuts against the locking edge, while the other end is locked with the first locking element.

9. A double-layer, detachable, elastic unit structure according to claim 8, characterized in that: A first elastic protrusion is provided at the first pull-out opening, and a first groove is provided along the edge of the first slide block; When the first slide block slides into the first slide rail, the first elastic protrusion engages in the first groove, and the first elastic protrusion and the first groove cooperate to form the locking element.

10. A double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The base is provided with several lower spring components arranged in a single or double row.

11. A double-layer, detachable, elastic unit structure according to claim 10, characterized in that: At least three lower spring components are provided in each row on the base.

12. The double-layer, detachable and reassembleable elastic unit structure according to claim 1, characterized in that: The third connecting member is disposed at the end of the upper spring member and is integrally formed with the upper spring member; The third connector is configured as a snap-fit ​​connector.

13. A double-layer, detachable, elastic unit structure according to claim 12, characterized in that: The connection method of the buckle connector is set to one of the following: point contact buckle, differential buckle, and spring clip buckle.

14. A double-layer, detachable, elastic unit structure according to claim 12, characterized in that: The third connector includes a first connector and a second connector, which are staggered along the edge of the upper elastic member. A slot is provided on one of the first connector and the second connector, and an elastic clip is provided on the other connector. When the first connector and the second connector are inserted, the elastic clip is placed in the slot to form a locking connection.

15. A double-layer, detachable, elastic unit structure according to claim 14, characterized in that: One of the connectors includes an upper plate and a lower plate, with a gap between the upper plate and the lower plate for the insertion of the elastic clip; The upper card is provided with the card slot, or both the upper card plate and the lower card plate are provided with the card slot.

16. A double-layer, detachable, elastic unit structure according to claim 15, characterized in that: The other connector includes a insert plate, which is hollow and connected to the elastic clip. The elastic clip is provided with a protrusion, which abuts against the bottom edge of the clip when the elastic clip is inserted into the clip groove.

17. A double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The third connecting member is configured as a fixed base, and a plurality of the upper spring members are provided on the fixed base; The upper spring component is integrally formed with the fixed base; the fixed bases are either independent and not connected to each other, or they can be spliced ​​together to form a connection.

18. A double-layer, detachable, elastic unit structure according to claim 1, characterized in that: The third connecting member is configured as a fixed base, and a plurality of the upper spring members are provided on the fixed base; The upper spring component is fixed to the fixed base or the upper spring component is detachably connected to the fixed base; the fixed bases are either independent and not connected to each other or they can be spliced ​​together to form a connection.

19. A double-layer, detachable, elastic unit structure according to claim 18, characterized in that: The fixed base is provided with a second slide rail, and the upper spring member is provided with a second slide block, which is located at the end of the upper spring member away from where it is inserted into the lower spring member; The second slide block and the second slide rail are designed for pull-out and detachable installation.

20. A double-layer, detachable, elastic unit structure according to claim 19, characterized in that: The fixed base is provided with a second pull-out opening corresponding to the second slide rail; a locking member is provided at the second pull-out opening, and the upper spring member slides into the second slide rail via the second slide block and is fixed in the second slide groove by the locking member.

21. A double-layer, detachable, elastic unit structure according to claim 20, characterized in that: A second elastic protrusion is provided at the second pull-out opening, and a second groove is provided along the edge of the second slide block; When the second slide block slides into the second slide rail, the second elastic protrusion engages with the second groove, and the second elastic protrusion and the second groove cooperate to form the locking element.

22. A double-layer, detachable, elastic unit structure according to any one of claims 18-21, characterized in that: The fixed base is provided with several upper spring components in a single row or double row.

23. A double-layer, detachable, elastic unit structure according to claim 22, characterized in that: At least three upper spring components are provided in each row on the fixed base.

24. A double-layered, detachable, elastic unit structure, characterized in that: The elastic unit structure includes a lower spring module and an upper spring module that can be assembled and disassembled; the lower spring module is composed of multiple lower spring components, and the upper spring module is composed of multiple upper spring components. One of the upper and lower spring components is provided with a plug, and the other spring component is provided with an interface, wherein the plug and the interface form a detachable connection. Each pair of upper spring components is independent and not connected; the lower spring module includes a base, and multiple lower spring components are disposed on the base; adjacent bases can be spliced ​​and disassembled. The upper spring member and the lower spring member are connected to form a connecting body. The connecting body has a degree of freedom of deformation along the height direction. The connecting body has a structure with a gradually increasing diameter at the connection point of the upper and lower spring members. The connecting bodies are independently set.

25. A functional pad, characterized in that: The functional pad is composed of several elastic unit structures spliced ​​together; the elastic unit structure is a double-layer splicable and detachable elastic unit structure as described in any one of claims 1-24.

26. A functional pad according to claim 25, characterized in that: The bases can be spliced ​​together, and the functional pads are assembled by splicing the bases together.

27. A functional pad according to claim 26, characterized in that: A cushion layer is laid on top of the functional pad.

28. A functional pad according to claim 27, characterized in that: The outer side of the functional pad is covered with a cloth cover.

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