Elastic pad and elastic component for elastic pad

Abstract

The present disclosure provides an elastic component for an elastic pad, including a first elastic module and a second elastic module that extend along the height direction of the elastic pad and are capable of undergoing elastic deformation along the height direction. In a lateral direction perpendicular to the height direction, one of the first and the second elastic modules is an outer elastic module, and the other is an inner elastic module, and the outer elastic module surrounds the inner elastic module along its circumferential direction on the outside of the inner elastic module. Along the height direction, the upper end portion of the first elastic module is higher than that of the second elastic module, so that when the elastic component is subjected to a downward pressure, the first elastic module directly receives the pressure first, and then the second elastic module directly receives the pressure or indirectly receives the downward pressure transmitted by the first elastic module. The present disclosure also provides an elastic pad including the elastic component, and a piece of furniture including the elastic pad.

Description

Technical Field

[0001] The present disclosure relates to the field of furniture, and particularly to an elastic pad and its elastic components used in furniture such as beds or sofas. Background Art

[0002] In order to improve the comfort of sitting or lying, furniture such as beds or sofas often has an elastic pad. There are already various elastic pads in the prior art, such as sponge pads, spring pads, etc. Traditional elastic pads are usually integrated, which is inconvenient to carry. Therefore, people hope to have an elastic pad that is convenient for users to assemble by themselves.

[0003] For spring pads, various solutions have been proposed in the prior art to improve their comfort, such as spring pads composed of independent pocket springs, spring pads composed of independent spring modules, etc. However, the elastic characteristics that these spring pads can provide are still limited. People hope to have more elastic pads with different elastic characteristics to choose from. Summary of the Invention

[0004] The present disclosure at least partially solves or alleviates the above-mentioned defects existing in the prior art.

[0005] According to one aspect of the present disclosure, an elastic component for an elastic pad is provided. The elastic component includes a first elastic module and a second elastic module that extend along the height direction of the elastic pad and can undergo elastic deformation along the height direction. In a transverse direction perpendicular to the height direction, one of the first and the second elastic modules is an outer elastic module, and the other is an inner elastic module. The outer elastic module surrounds the inner elastic module along its circumferential direction outside the inner elastic module. Along the height direction, the upper end portion of the first elastic module is higher than that of the second elastic module, so that when the elastic component is subjected to a downward pressure, the first elastic module directly receives the pressure first, and then the second elastic module directly receives the pressure or indirectly receives the downward pressure transmitted by the first elastic module. The present disclosure also provides an elastic pad including the elastic component, and furniture including the elastic pad.

[0006] In accordance with another aspect of the present disclosure, an elastic component for an elastic pad is provided. The elastic component includes a first elastic module extending along the height direction of the elastic pad and a holding module for holding the first elastic module. The holding module is formed with an upwardly opening receiving space to allow the first elastic module to be inserted downward into the receiving space of the holding module from above, and thereby hold the first elastic module. In a state where the first elastic module has been inserted into and held by the receiving space of the holding module, an upper end portion of the first elastic module extends upward out of the receiving space and is higher than the holding module, so that when the elastic component is subjected to a downward pressure, the first elastic module first receives the pressure. The present disclosure also provides an elastic pad including the elastic component, and furniture including the elastic pad.

[0007] In accordance with yet another aspect of the present disclosure, an elastic pad is provided. The elastic pad includes a main elastic layer providing a main elastic source. The main elastic layer includes a plurality of elastic components arranged in an array in an extending plane perpendicular to the height direction of the elastic pad. Each elastic component includes a first elastic module extending along the height direction of the elastic pad and capable of elastically deforming along the height direction, and a second elastic module surrounding the first elastic module circumferentially along its outer side. Along the height direction, an upper end portion of the first elastic module is higher than the second elastic module, so that when the elastic component is subjected to a downward pressure from outside the elastic pad, the first elastic module first directly receives the pressure, and then the second elastic module directly receives the pressure or indirectly receives the downward pressure transmitted by the first elastic module. The main elastic layer further includes an interconnected elastic net. The interconnected elastic net extends in a plane perpendicular to the height direction and is located between the upper surface and the lower surface of the main elastic layer. The interconnected elastic net is connected to the second elastic modules of at least a part of the plurality of elastic components for transmitting the pressure and / or elastic deformation between the second elastic modules interconnected by the interconnected elastic net. When any one of the second elastic modules of the at least a part of the elastic components elastically deforms due to the pressure, the pressure is transmitted via the interconnected elastic net to other connected second elastic modules, so that the connected second elastic modules together bear the pressure. The present disclosure also provides furniture including the elastic pad.

[0008] According to another aspect of the present disclosure, there is provided a holding module for an elastic pad, which is configured to hold a first elastic module and form an elastic assembly extending along the height direction of the elastic pad together with the first elastic module. The holding module includes a second elastic body capable of elastically deforming along the height direction; and a mounting cylinder supported by the second elastic body. The mounting cylinder is hollow, and its inner surface defines a receiving space for receiving the first elastic module. The receiving space of the mounting cylinder extends along the height direction and is open upward, so as to allow the first elastic module to be inserted into the receiving space of the mounting cylinder from above, and thereby hold the first elastic module. The downward or upward movement of the mounting cylinder can correspondingly compress or release the second elastic body. The present disclosure also provides an elastic assembly including the holding module, an elastic pad including the elastic assembly, and a piece of furniture including the elastic pad.

[0009] According to another aspect of the present disclosure, there is provided an elastic module for an elastic pad. The elastic module includes: a second elastic body extending along the height direction of the elastic pad and having opposite upper and lower ends, and capable of elastically deforming in the height direction; a flat base surrounding the second elastic body and located between the upper end and the lower end in the height direction; and at least one flexible member connected between the second elastic body and the base to allow the second elastic body to move relative to the base in the height direction. The present disclosure also provides an elastic assembly including the elastic module, an elastic pad including the elastic assembly, and a piece of furniture including the elastic pad.

[0010] According to another aspect of the present disclosure, there is provided an elastic pad. The elastic pad has an extending plane and a height direction perpendicular to the extending plane. The elastic pad includes a plurality of first elastic modules and a flat base layer in the extending plane. The base layer has an upper surface and a lower surface opposite to the upper surface; and a plurality of holding pits arranged in an array at the upper surface, each of the holding pits being recessed downward from the upper surface of the base layer. The plurality of first elastic modules extend along the height direction of the elastic pad and are capable of elastically deforming in the height direction. The lower end of each first elastic module is inserted into the pit so as to be held by the base layer. The upper end of each first elastic module extends upward and exceeds the upper surface of the base layer. The present disclosure also provides a piece of furniture including the elastic pad.

[0011] The elastic components of the present disclosure and the elastic pads formed by the elastic components are easy to assemble. Moreover, in some embodiments, since each elastic component is composed of two elastic modules, by respectively adjusting the elastic coefficient of each elastic module, the respective structural changes of the elastic modules, and the connection and / or positional relationship between the elastic modules, various different elastic characteristics can be presented. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present disclosure and form a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings, the dimensions and ratios do not represent the dimensions and ratios of the actual products. The drawings are merely illustrative and, for clarity, certain non-essential elements or features are omitted.

[0013] Figure 1 is a perspective view of the elastic pad of the first embodiment.

[0014] Figure 2 is Figure 1 a side view of the shown elastic pad as viewed along the X-axis direction.

[0015] Figure 3 is Figure 1 an exploded view of the shown elastic pad.

[0016] Figure 4 is during the assembly of Figure 1 a perspective view of the elastic base layer composed of interconnected second elastic modules in the process of the shown elastic pad.

[0017] Figure 5 is during the assembly of Figure 1 a schematic diagram showing the insertion of the first elastic module into the second elastic module in the process of the shown elastic pad.

[0018] Figure 6 is during the assembly of Figure 1 a perspective view of the main elastic layer formed after inserting the first elastic module into the second elastic module in the process of the shown elastic pad.

[0019] Figure 7 is during the assembly of Figure 1 a schematic diagram showing the laying of the first cushion layer on the main elastic layer in the process of the shown elastic pad.

[0020] Figure 8 is Figure 3 a partially enlarged side view of region B in

[0021] Figure 9 is Figure 1 a partially enlarged side view of the shown elastic pad.

[0022] Figure 10 is Figure 1 the first cushion layer in the elastic pad shown, where its lower surface is shown facing upward.

[0023] Figure 11 is Figure 5 an enlarged view of region C of

[0024] Figure 12 is showing Figure 1 several first elastic modules in the elastic pad shown are in a nested state.

[0025] Figure 13 is Figure 1 a schematic diagram of the first elastic module in the elastic pad shown, where its internal structure is shown by dashed lines.

[0026] Figure 14 is Figure 1 a perspective view of the second elastic module in the elastic pad shown.

[0027] Figure 15 is showing several Figure 14 second elastic modules in the elastic pad shown are in a nested state.

[0028] Figure 16 is Figure 6 a side view of the main elastic layer in the elastic pad shown.

[0029] Figure 17 is a perspective view of the elastic pad of the second embodiment.

[0030] Figure 18 is Figure 17 a side view of the elastic pad shown when viewed along the X-axis direction.

[0031] Figure 19 is Figure 17 an exploded view of the elastic pad shown.

[0032] Figure 20 is Figure 17 a perspective view of the second elastic module in the elastic pad shown.

[0033] Figure 21 is showing several Figure 20 second elastic modules in the elastic pad shown are in a nested state.

[0034] Figure 22 is a perspective view of the elastic base layer composed of interconnected second elastic modules during the assembly of the Figure 17 elastic pad shown.

[0035] Figure 23 is Figure 17 a side view of the main elastic layer of the elastic pad shown.

[0036] Figure 24 is a perspective view of the elastic pad of the third embodiment.

[0037] Figure 25 is Figure 24 a side view of the shown elastic pad as viewed in the X-axis direction.

[0038] Figure 26 is Figure 24 an exploded view of the shown elastic pad.

[0039] Figure 27 is Figure 24 a perspective view of the second elastic module in the shown elastic pad.

[0040] Figure 28 is Figure 27 a longitudinal sectional view of the shown second elastic module.

[0041] Figure 29 is showing a number of Figure 28 the shown second elastic modules in a nested state.

[0042] Figure 30 is a perspective view of the elastic base layer composed of interconnected second elastic modules during the assembly of the Figure 24 shown elastic pad.

[0043] Figure 31 is Figure 24 a longitudinal sectional view of the elastic component in the shown elastic pad.

[0044] Figure 32 is a concave-shaped helical spring.

[0045] Figure 33 is a schematic diagram of the elastic component of another embodiment.

[0046] Figure 34 is a schematic diagram of the elastic component of yet another embodiment.

[0047] Figure 35 is schematically showing the main elastic layer composed of the Figure 33 elastic components, and an interconnected elastic net is also shown.

[0048] Figure 36 is another elastic base layer.

[0049] Figure 37 The upper half of Figure 36 is a perspective view of the shown elastic base layer with a part cut off vertically, and the cut surface shows the shape of the retaining pit; the lower half is a side view of the upper half.

[0050] Figure 38 is showing that a plurality of first elastic modules are to be inserted intoFigure 36 into the corresponding retaining pits in the elastic base layer shown.

[0051] Figure 39 is represented by Figure 36 the elastic pad composed of the elastic base layer, a plurality of first elastic modules and the first cushion layer shown.

[0052] Figure 40 A bed having any of the elastic pads in the present disclosure. Detailed implementation manners

[0053] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0055] Figure 1 and Figure 2 shows the assembled elastic pad 1000 according to the first embodiment of the present invention. As Figure 1 and Figure 2 shown, the elastic pad 1000 is substantially flat and extends in the X-Y plane and has a height or thickness extending in the Z direction. Typically, the elastic pad 1000 can be applied to a bed or a sofa and provide an elastic support surface to provide a comfortable elastic support for a person sitting or lying on the support surface.

[0056] The elastic pad 1000 may include a main elastic layer 1100 and a first cushion layer 1200 covering the main elastic layer. The main elastic layer 1100 may be made of an elastic material and provide the main elastic source for the elastic pad 1000. The first cushion layer 1200 may be located above the main elastic layer 1100 and be closer to the human body than the main elastic layer 1100 during use. The first cushion layer 1200 generally may have a substantially continuous and flat surface to provide a surface more suitable for human contact for the elastic pad 1000. The first cushion layer 1200 may also have a certain degree of elasticity to provide an auxiliary elastic source for the elastic pad 1000. The first cushion layer 1200 may be made of, for example, sponge or silica gel, which also applies to the first cushion layer in subsequent other embodiments.

[0057] The main elastic layer 1100 may include a plurality of elastic components 1110 arranged in an array along the X-Y plane. The structures of the elastic pad 1000 and the elastic components 1110 are Figure 3 more clearly visible in the Figure 3 exploded view. As

[0058] shown, each elastic component 1110 in the main elastic layer 1100 may include a first elastic module 1120 and a second elastic module 1130 that extend along the height direction Z and are capable of elastic deformation along the height direction Z. The first elastic module 1120 can be inserted downward along the height direction Z into the corresponding second elastic module 1130 and be held by it. That is to say, the second elastic module 1130 can be both an elastic module and a holding module for holding the first elastic module 1120. In the assembled state, the first elastic modules 1120 of the respective elastic components 1110 are independent of each other, while the second elastic modules 1130 of adjacent elastic components 1110 are connected to each other.

[0058] During assembly, the second elastic modules 1130 of the respective elastic components 1110 can be first connected to each other to form an elastic base layer 1140 having elasticity along the height direction Z, as Figure 4 shown. The elastic base layer 1140 may be located within the extension plane (i.e., the X-Y plane) of the elastic pad. The elastic base layer 1140 is flat and has an upper surface 1141 and a lower surface 1142 opposite to the upper surface 1141. The elastic base layer 1140 may have a plurality of holding pits 1143 distributed in an array at its upper surface, and each holding pit 1143 recesses downward from the upper surface 1411 of the elastic base layer 1140. As will be clear below, the holding pit 1143 may be formed by the accommodation space 1135 of the second elastic module 1130 for holding the corresponding first elastic module 1120. Then, as Figure 5 and Figure 6As shown, the lower end of the first elastic module 1120 of each elastic component 1110 can be inserted downward from above into the corresponding second elastic module 1130, that is, into the holding pit 1143 of the elastic base layer 1140, so as to be held by the second elastic module 1130 or the entire elastic base layer 1140. The upper end of the first elastic module 1120 can extend upward beyond the second elastic module 1130, or beyond the upper surface 1141 of the elastic base layer 1140. For the sake of clarity of illustration, Figure 5 only a part of the elastic base layer 1140 is shown, and several first elastic modules 1120 to be inserted into the corresponding second elastic modules 1130 are exemplarily shown. It should be understood that each first elastic module 1120 and its corresponding second elastic module 1130 constitute the aforementioned elastic component 1110 (which is schematically shown by the rectangular dotted line frame 1110 in Figure 5 ). After all the first elastic modules 1120 are inserted into their respective corresponding second elastic modules 1130, the Figure 6 shown main elastic layer 1100 can be formed, which is composed of a plurality of elastic components 1110 arranged in an array.

[0059] Finally, as Figure 7 shown, the first cushion layer 1200 can be laid on the main elastic layer 1100 composed of the assembled elastic components 1110 to form the Figure 1 and Figure 2 shown assembled elastic pad 1000.

[0060] Figure 8 and Figure 9 show the assembly process of the elastic pad 1000 more clearly in the form of a partial enlarged view. Figure 8 is an enlarged view of area B in the side view seen along the X direction in the exploded view of Figure 3 , in which the internal structure of the first elastic module 1120 is additionally shown by a dotted line. Again, it should be understood that each first elastic module 1120 and its corresponding second elastic module 1130 constitute the aforementioned elastic component 1110 (which is schematically shown by the rectangular dotted line frame 1110 in Figure 8 ). As Figure 8 shown, after the second elastic modules 1130 of the elastic components 1110 are connected into the elastic base layer 1140 as Figure 4 shown, the first elastic modules 1120 of the elastic components 1110 can be inserted downward into the second elastic modules 1130 along the direction shown by arrow A (that is, the height direction Z described above) to form the Figure 1 , Figure 2 , Figure 6 and Figure 7The main elastic layer 1100 shown in [figure]. Finally, the first cushion layer 1200 is laid downwards along the direction shown by arrow A on top of the main elastic layer 1100 composed of a plurality of elastic components 1110, forming the assembled elastic pad 1000 as shown in Figure 9 shown.

[0061] In order to define the position of the first cushion layer 1200 relative to the main elastic layer 1100 thereunder in the horizontal direction (within the plane where the X and Y directions are located), the first cushion layer 1200 may have a plurality of limiting protrusions 1210. Referring to Figure 8 , during the assembly process, each limiting protrusion 1210 may extend downwards along the direction of arrow A into the interior of a corresponding first elastic module 1120, thereby restricting the movement of the first cushion layer 1200 relative to the main elastic layer 1100 in the horizontal direction. After the assembly is completed, as shown in Figure 9 shown, the first elastic modules 1120 of each elastic component 1110 may be held in place by corresponding second elastic modules 1130, while the first cushion layer 1200 may be laid on top of each elastic component 1110. In particular, Figure 9 the internal structure of the rightmost elastic component 1110 is also exemplarily shown by a dashed line. It can be seen that the limiting protrusions 1210 of the first cushion layer 1200 extend into the interior of the first elastic module 1120, thereby defining the relative position of the first cushion layer 1200 relative to the elastic component 1110 thereunder.

[0062] To more clearly show the first cushion layer 1200 with limiting protrusions 1210, Figure 10 the lower surface 1211 of the first cushion layer 1200 in [figure] is shown facing upwards. Referring to Figure 10 , the first cushion layer 1200 may include a flat main body 1220. The main body 1220 has a lower surface 1221 that faces downwards in the assembled state. Adjacent to the edge of the main body 1220, a plurality of limiting protrusions 1210 protrude outwards from the lower surface 1221 of the main body 1220.

[0063] Figure 11 is Figure 5Enlarged view of region C, which more clearly shows the first elastic module 1120 and the second elastic module 1130 of each elastic component 1110. The first elastic module 1120 can be made of an elastic material so as to be able to provide elastic deformation occurring along the height direction Z. The first elastic module 1120 can be generally frustoconical in shape. In the assembled state, the lateral dimension of the first elastic module 1120 tapers from the upper end or the enlarged end 1121 to the lower end or the reduced end 1122 along the height direction Z, presenting an inverted frustoconical shape. The first elastic module 1120 can be hollow and open outward at its enlarged end 1121 to form an opening 1123. Such a hollow and frustoconical first elastic module 1120 can, on the one hand, provide elastic characteristics that vary due to different dimensions along the height direction Z, and on the other hand, facilitate storage and transportation in the non-assembled state. As Figure 12 shown, through the opening 1123 at the enlarged end 1122 of the first elastic module 1120, one first elastic module 1120 can be inserted into the interior of another first elastic module 1120, so that a plurality of first elastic modules 1120 can be nested with each other to reduce the storage occupied space.

[0064] Returning to Figure 8 and Figure 9 , the first elastic module 1120 can be in the form of a pocket spring of a conical spiral spring wrapped with a flexible material, which is seen more clearly in Figure 13 . Figure 13 More clearly shows the internal structure of the first elastic module 1120. As Figure 13As shown, the helical spring 1124 serving as the elastic body can taper from the enlarged end 1121 to the reduced end 1122 of the first elastic module 1120. The outer surface and the inner surface of the first elastic module 1120 can be formed by an outer flexible material layer 1125 and an inner flexible material layer 1126 respectively, while the helical spring 1124 can extend between the outer flexible material layer 1125 and the inner flexible material layer 1126. The outer flexible material layer 1125 and the inner flexible material layer 1126 are connected to each other to form a flexible sleeve. The helical spring 1124 can be encapsulated in the flexible sleeve in a certain pre-compressed state (not a completely free state), so that the formed first elastic module 1120 can not only undergo elastic deformation but also have a certain stiffness. The stiffness of the first elastic module can be beneficial to maintaining the shape of the first elastic module 1120 in the static state and helps to provide a suitable initial hardness or initial supporting force for the elastic pad 1000. In other embodiments, the flexible sleeve encapsulating the helical spring 1124 can also be a single-layer flexible material layer covering the outer surface of the helical spring 1124. In other embodiments, the helical spring 1124 can also be pre-compressed in other ways, such as the way of the flexible band used in the second elastic module 1130 described below. In some embodiments, the elastic body of the first elastic module can also adopt other forms or materials different from the helical spring 1124, such as a sponge body or a plurality of vertically extending strip leaf springs arranged circumferentially, etc.

[0065] Figure 14 Schematically shows a second elastic module 1130 applicable to the elastic assembly 1110. As Figure 14 shown, the second elastic module 1130 can include a helical spring 1133 capable of elastic deformation. The helical spring 1133 can be used as the elastic body of the second elastic module 1130 and is hollow. The helical spring 1133 can be installed and constrained between the base 1131 and the end cap 1132. The flat base 1131 can be located at the upper end of the second elastic module 1130, and the end cap 1132 can be located at the lower end of the second elastic module 1130. Specifically, the helical spring 1133 can abut against the base 1131 at one of its ends (the upper end in Figure 14 ), and can abut against the end cap 1132 at the other end (the lower end in Figure 14 ). The helical spring 1133 can also be connected to the base 1131 at its upper end by, for example, a snap connection. The abutment or connection between the helical spring 1133 and the base 1131 can be substantially rigid, that is to say, the movement of the base 1131 and the upper end of the helical spring 1133 in the height direction Z can be synchronous.

[0066] Outside the helical spring 1133, a plurality of flexible straps 1134 extend between the base 1131 and the end cap 1132. In this way, by pre-determining the length of the flexible straps 1134, the distance between the base 1131 and the end cap 1132 can be restricted, thereby constraining the distance between the upper end portion and the lower end portion of the helical spring 1133, such that the helical spring 1133 can be constrained between the base 1131 and the end cap 1132 in a pre-compressed state (not a completely free state). By means of the pre-compressed helical spring 1133, the formed second elastic module 1130 can not only undergo elastic deformation but also has a certain stiffness. The stiffness possessed by the second elastic module 1130 can be beneficial for maintaining the shape of the second elastic module 1130 in a stationary state and can provide an appropriate initial hardness or initial supporting force when it is compressed and deformed. In other embodiments, the helical spring 1133 of the second elastic module 1130 can also adopt a packaging and pre-compression method similar to that of the pocket spring of the first elastic module 1120 shown in Figure 13 and then install its upper end portion onto the base 1131 described above. In appropriate circumstances, the second elastic module 1130 can also adopt an elastic body other than a helical spring, such as a sponge or a leaf spring.

[0067] The base 1131 of the second elastic module 1130 can have a connecting portion 1136 for interconnecting with the base 1131 of the second elastic module 1130 of other adjacent elastic components 1110 during the assembly process to form, for example, Figure 4 the elastic base layer 1140 shown in. For the convenience of assembly, the bases 1131 of several second elastic modules 1130 can be integrally formed to form a module including multiple second elastic modules. In this way, during assembly, it is not necessary to splice the second elastic modules one by one, but only to splice a smaller number of modules together. In fact, Figure 4 each row of the second elastic modules 1130 in the X direction in is such a module.

[0068] The second elastic module 1130 and its helical spring 1133 can be frustum-shaped that tapers in the direction from the base 1131 to the end cap 1132, and, in the assembled state, the frustum shape can be inverted. The second elastic module 1130 can be hollow, and its base 1131 can have an opening 1137, so that the second elastic module 1130 has an upward-opening accommodation space 1135. The accommodation space 1135 can be defined by the inner side surface of the helical spring 1133 and the upper surface of the end cap. In this way, referring to the previous drawings, especially Figures 8 - 10, it is allowed to insert the first elastic module 1120 downward from above into the accommodation space 1135 of the second elastic module 1130, so that the first elastic module 1120 can be held by the second elastic module 1130, forming the assembled elastic component 1110. The accommodation space 1135 can also be an inverted truncated cone shape that tapers along the direction from the base 1131 to the end cap 1132, so it can basically form a conical surface fit with the inverted truncated cone-shaped first elastic module 1120, so that the second elastic module 1130 can hold the first elastic module 1120 more firmly, which can be seen in Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9 .

[0069] It can be seen that this conical surface fit between the first elastic module 1120 and the accommodation space 1135 of the second elastic module 1130 is particularly convenient for assembly. Just inserting the first elastic module 1120 downward from above into the accommodation space 1135 of the second elastic module 1130 with such a simple single insertion action can make the second elastic module 1130 hold the first elastic module 1120, so as to assemble them into the required elastic component 111, without complex alignment and / or connection operations. This conical surface fit is also convenient for disassembling the elastic component 1110. Among them, using a single pulling action of pulling the first elastic module 1120 out of the accommodation space 1135 of the second elastic module 1130 can make the first elastic module 1120 disengage from the second elastic module 1130. In other embodiments, the first elastic module 1120 can have an outer surface with other shapes, and the accommodation space 1135 of the second elastic module 1130 can also have a shape matching the outer surface of the first elastic module 1120, so as to form other non-conical surface fits and at the same time have the aforementioned advantages of easy assembly and disassembly.

[0070] Moreover, since the second elastic module 1130 has a hollow truncated cone shape and the base 1131 at its upper end has an opening 1137, this allows another second elastic module 1130 to be inserted into the accommodation space 1135 inside the current second elastic module 1130 through the opening 1137, so that multiple second elastic modules 1130 can be nested with each other in a non-assembled state, as shown in Figure 15 , which is convenient for storing and transporting the second elastic module 1130 in a compact volume in a non-assembled state.

[0071] It should also be noted that referring to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9, in the assembled state where the first elastic module 1120 is inserted into the second elastic module 1130, along the height direction Z, the upper end portion of the first elastic module 1120 extends beyond the accommodation space 1135 of the second elastic module 1130, such that the upper end portion of the first elastic module 1120 is higher than the second elastic module 1130. At the same time, in the lateral direction perpendicular to the height direction Z, the second elastic module 1130 circumferentially surrounds and holds the first elastic module 1120 on the outside thereof. In this way, when the elastic pad 1000, especially each elastic component 1110 in its main elastic layer 1100, bears a downward pressure, the first elastic module 1120 directly receives the pressure, and the second elastic module 1130 indirectly receives the downward pressure transmitted by the first elastic module 1120.

[0072] Figure 16 is Figure 6 a side view of the main elastic layer 1100 shown below, and the elastic characteristics of the main elastic layer 1100 will be described below with reference to Figure 16 As shown in Figure 16 , the main elastic layer 1100 may include a plurality of elastic components 1110 arranged in an array in the X-Y plane. In the case where one elastic component 1110a among the plurality of elastic components 1110 is subjected to a downward pressure F, or in other words, when the elastic component 1110a is located at the concentration point of the pressure F, the elastic component 1110a will be able to perform a first compression process and selectively perform a second compression process.

[0073] During the first compression process, the first elastic module 1120a in the elastic component 1110a first directly receives the downward pressure F and is significantly compressed downward, while the second elastic module 1130a is not compressed downward or is not significantly compressed downward. Specifically, for the first elastic module 1120a having an inverted truncated conical helical spring, referring to Figure 13 , its upper part has a relatively small elastic coefficient (i.e., relatively soft) due to its larger diameter, while its lower part has a relatively large elastic coefficient (i.e., relatively hard) due to its smaller diameter. In this way, under the action of the pressure F, the upper part of the first elastic module 1120a will be significantly compressed first. During the first compression process, although the second elastic module 1130a will receive the pressure transmitted from the first elastic module 1120a due to contact with the first elastic module 1120a, the transmitted pressure basically acts dispersedly on the bottom surface and the conical side surface of the second elastic module 1130a, and the upper end portion of the second elastic module 1130a does not receive an obvious concentrated downward pressure, so the second elastic module 1130a is not significantly compressed.

[0074] Moreover, referring to Figure 4, the second elastic modules 1130 of each elastic component 1110 form an elastic base layer 1140 through mutual connection at the base 1131, which makes the second elastic modules 1130 not independent of each other, but have mutual influence. In this way, when the second elastic module 1130a receives a downward pressure, the pressure will be transmitted to a plurality of second elastic modules 1130 in the surrounding area through the base 1131 and bear the pressure together with them. This also makes the second elastic module 1130a not undergo significant deformation during the first compression process. Return Figure 16 , the mutually connected bases 1131 of each second elastic module 1130 can actually form an interconnected elastic network extending in the X-Y plane (such as the part surrounded by the dashed box 1150). The interconnected elastic network 1150 is used to connect or link the second elastic modules 1130 of each elastic component 1110 in the main elastic layer 1100, so as to transmit pressure and / or elastic deformation between the mutually connected second elastic modules 1130, thereby forming the aforementioned mutual influence. In this way, when the elastic component 1110a is compressed to a certain extent so that its second elastic module 1130a begins to undergo elastic deformation, the pressure can be transmitted to the second elastic modules 1130 of other elastic components 1110 (especially adjacent elastic components) through the interconnected elastic network 1150, so that other elastic components 1110 (especially the second elastic module 1130) can bear the pressure together. In this embodiment, since the base 1131 is located at the upper end of the second elastic module 1130 or the helical spring 1133, relative to the assembled elastic component 1110, the base 1131 is located at a position between its upper end and lower end, which also makes the interconnected elastic network 1150 located between the upper surface and the lower surface of the entire main elastic layer 1100. In other embodiments, only the bases of a part of the second elastic modules 1130 in the main elastic layer 1100 can be mutually connected, and the interconnected elastic network 1150 formed in this way can transmit pressure / or elastic deformation only between the mutually connected second elastic modules 1130, so as to contribute different elastic characteristics to the main elastic layer 2100.

[0075] Finally, alternatively or additionally, the second elastic module 1130a can also be made not to undergo significant deformation during the first compression process by making the second elastic module 1130a itself have a larger elastic coefficient, such as a harder helical spring 1133.

[0076] It should be noted that during the first compression process, the elastic deformation of the main elastic layer 1100 is mainly provided by the elastic deformation of the first elastic module 1120 of the elastic component 1110 alone. Moreover, the first elastic modules 1120 of each elastic component 1110 are independent of each other, so the elastic characteristics of obvious independent spring pads are presented.

[0077] When the deformation of the first elastic module 1120a during the first compression process is not yet sufficient to fully counteract the pressure F, a second compression process can be carried out after the first compression process. During the second compression process, the entire elastic assembly 1110a is continuously compressed downward by the pressure F. At this time, the first elastic module 1120a and the second elastic module 1130a are compressed downward substantially synchronously. Moreover, as the second elastic module 1130a is compressed downward, its base 1131 will immediately transfer the deformation of the second elastic module 1130a directly to the second elastic modules 1130 of other adjacent elastic assemblies 1110, so that the adjacent second elastic modules 1130 will be involved in jointly counteracting the pressure F. From the perspective of the interconnected elastic network 1150 formed by the interconnected bases 1131, once the second elastic module 1130a is compressed, the compression deformation of the second elastic module 1130a is directly transmitted via the interconnected elastic network 1150 connected thereto to the second elastic modules 1130 of other adjacent elastic assemblies 1110, so that the second elastic modules 1130 of other adjacent elastic assemblies 1110 that receive this deformation and the current elastic assembly 1110a jointly bear the pressure. In this way, the second compression process will exhibit a higher elastic coefficient than the first compression process. In other words, people will feel that the second compression process of the main elastic layer 1100 is "harder" than the first compression process.

[0078] Based on the first and second compression processes, it can be seen that the main elastic layer 1100 and the elastic pad 1000 having the same have the following elastic characteristics: 1) presenting an obvious two-stage elastic characteristic from "soft" to "hard"; and 2) presenting an obvious independent elastic pad characteristic in the first stage of being "soft", that is, the compression states of different regions of the elastic pad 1000 are independent and do not affect each other.

[0079] Figure 17 and Figure 18 shows the assembled elastic pad 2000 according to the second embodiment of the present invention. As Figure 17 and Figure 18As shown, the elastic pad 2000 is substantially flat and extends in the X-Y plane, and has a height or thickness extending in the Z direction. The elastic pad 2000 may include a main elastic layer 2100 and a first cushion layer 2200 covering the main elastic layer. The main elastic layer 2100 may be made of an elastic material and provide the main elastic source for the elastic pad 2000. The first cushion layer 2200 may be located above the main elastic layer 2100 and be closer to the human body than the main elastic layer 1100 during use. The first cushion layer 2200 may generally have a substantially continuous and flat surface to provide a surface more suitable for human contact for the elastic pad 2000. The first cushion layer 2200 may also have a certain degree of elasticity to provide an auxiliary elastic source for the elastic pad 2000.

[0080] The main elastic layer 2100 may include a plurality of elastic components 2110 arranged in an array along the X-Y plane. The structure of the elastic pad 2000 and the elastic components 2110 can be seen more clearly in Figure 19 the exploded view. As Figure 19 shown, each elastic component 2110 in the main elastic layer 2100 may include a first elastic module 2120 and a second elastic module 2130 that extend along the height direction Z and are capable of elastically deforming along the height direction Z. The first elastic module 2120 can be inserted downward along the height direction Z into the corresponding second elastic module 2130 and be held by it. That is to say, the second elastic module 2130 can be both an elastic module and a holding module for holding the first elastic module 2120. In the assembled state where the first elastic module 2120 is inserted into the second elastic module 2130, along the height direction Z, the upper end portion of the first elastic module 2120 extends out of the accommodation space 2135 of the second elastic module 2130 (see Figure 20 ), so that the upper end portion of the first elastic module 2120 is higher than the second elastic module 2130. At the same time, in the lateral direction perpendicular to the height direction Z, the second elastic module 2130 circumferentially surrounds and holds the first elastic module 2120 on the outside of the first elastic module 2120. In this way, when the elastic pad 2000, especially each elastic component 2110 in its main elastic layer 2100, bears a downward pressure, it is the first elastic module 2120 that directly receives the pressure, and the second elastic module 2130 indirectly receives the downward pressure transmitted by the first elastic module 2120.

[0081] It should be noted that in this assembled state, the first elastic modules 2120 of each elastic component 2110 can be independent of each other, while the second elastic modules 2130 of adjacent elastic components 2110 can be connected to each other.

[0082] The first elastic module 2120 of each elastic component 2110 in the elastic pad 2000 can adopt a shape and structure similar to that of the first elastic module 1120 in the elastic pad 1000 of the first embodiment, such as Figure 13 shown. The assembly process of the elastic pad 2000 is also similar to that of the elastic pad 1000 of the first embodiment. The main difference between the elastic pad 2000 and the elastic pad 1000 lies in the structure of the second elastic module 2130. Except for this, the description of the elastic pad 1000 in the previous text basically applies to the elastic pad 2000.

[0083] Figure 20 Schematically shows a second elastic module 2130 that can be applied to the elastic component 2110. As Figure 20 shown, the second elastic module 2130 can include a helical spring 2133 that can elastically deform. The helical spring 2133 can be used as the elastic main body of the second elastic module 2130 and is hollow. The helical spring 2133 can be installed and constrained between the annular seat ring 2139 and the end cover 2132. Specifically, the helical spring 2133 can abut against and be held by the seat ring 2139 at one of its ends (the upper end in Figure 20 ), and can abut against the end cover 2132 at the other end (the lower end in Figure 20 ). Outside the helical spring 2133, a plurality of flexible straps 2134 extend between the seat ring 2139 and the end cover 2132. In this way, by pre-determining the length of the flexible straps 2134, the distance between the seat ring 2139 and the end cover 1132 can be restricted, so that the helical spring 2133 can be constrained between the seat ring 2139 and the end cover 2132 in a pre-compressed state (non-fully free state). With the pre-compressed helical spring 2133, the formed second elastic module 2130 can not only elastically deform, but also has a certain stiffness. The stiffness possessed by the second elastic module 2130 can be beneficial to the shape retention of the second elastic module 2130 in the static state and can provide a suitable initial hardness or initial supporting force when it is compressed and deformed. In other embodiments, the helical spring 2133 of the second elastic module 2130 can also adopt a packaging and pre-compression method similar to that of the pocket spring of the first elastic module 1120 as Figure 13 shown, and then its upper end can be installed on the seat ring 2139. In appropriate cases, the second elastic module 1130 can also adopt an elastic main body other than a helical spring, such as a sponge, a leaf spring, etc.

[0084] Return Figure 20The flat base 2131 can surround the coil spring 2133 and be positioned below the upper end of the coil spring 2133, or below the seat ring 2139, thus being located vertically (in the height direction Z) between the seat ring 2139 and the end cap 2132. In other words, the base 2131 can be lower than the upper end of the second elastic module 2130 and located between the upper and lower ends of the second elastic module 2130. Typically, in the height direction Z, the base 2131 can be located between halfway up the height of the coil spring 2133 and the upper end. The base 2131 can be connected to the seat ring 2139 at the upper end of the coil spring 2133 via a flexible member 2138. This allows relative movement between the upper end of the coil spring 2133, or the seat ring 2139, and the base 2131 in the height direction Z. The flexible member 2138 can be elastic, allowing for elastic deformation to transfer force between the seat ring 2139 and the base 2131, and can self-restore to its initial relative position after relative movement between the seat ring 2139 and the base 2131. The end cap 2132, the flexible strap 2134, and the flexible member 2138 can be made of the same material and can be integrally formed. In other embodiments, when the seat ring 2139 is omitted, the flexible member 2138 can be directly attached to the base 2131 and the upper end of the coil spring 2133, respectively.

[0085] The base 2131 of the second elastic module 2130 may have a connecting portion 2136 for connecting with the base 2131 of the second elastic module 2130 of another adjacent elastic assembly 2110 during assembly to form, for example, Figure 22 The elastic base layer 2140 shown in FIG. The description of the elastic base layer 2140 can refer to the first embodiment. Figure 4 The description of the elastic base layer 1140 is omitted here. Similar to the first embodiment, for the convenience of assembly, the bases 2131 of the plurality of second elastic modules 2130 can be integrally formed to form a module including a plurality of second elastic modules. Figure 20As shown, these connecting parts 2136 may include a protruding connecting part 2136a and a notch connecting part 2136b of a concave-convex structure. The protruding connecting part 2136a may be inserted into the notch connecting part 2136b of the base 2131 of an adjacent another second elastic module 2130, and the notch connecting part 2136b may receive the protruding connecting part 2136a of the base 2131 of the another second elastic module 2130. These connecting parts 2136 may further include a slide rail connecting part 2136c and a slide groove connecting part 2136d of a "slide rail - slide groove" type. The slide rail connecting part 2136c may be inserted into the slide groove connecting part 2136d of the base 2131 of an adjacent another second elastic module 2130, and the slide groove connecting part 2136d may receive the slide rail connecting part 2136c of the base 2131 of the another second elastic module 2130.

[0086] As Figure 20 shown, the second elastic module 2130 and its helical spring 2133 may be a frustum of a cone that tapers in the direction from the seat ring 2139 to the end cap 2132, and in the assembled state, the frustum of the cone may be inverted. The second elastic module 2130 may be hollow, and its seat ring 2139 may have an opening 2137, so that the second elastic module 1130 has an upward-opening accommodation space 2135. The accommodation space 2135 may be defined by the inner side surface of the helical spring 2133 and the upper surface of the end cap 2132. In this way, it is allowed to insert the first elastic module 2120 downward from above into the accommodation space 2135 of the second elastic module 2130, so that the first elastic module 2120 can be held by the second elastic module 2130 to form an assembled elastic assembly 2110. The accommodation space 2135 may also be an inverted frustum of a cone that tapers in the direction from the seat ring 2139 to the end cap 2132, so that it can be substantially in a conical surface fit with the inverted frustum of a cone-shaped first elastic module 2120, thus enabling the second elastic module 2130 to hold the first elastic module 2120 more firmly. It can be seen that this conical surface fit between the first elastic module 2120 and the accommodation space 2135 of the second elastic module 2130 is particularly convenient for assembling and disassembling the elastic assembly 2110, which can refer to the relevant description of the elastic assembly 1110 for the first embodiment above and will not be elaborated here. In other embodiments, other shaped surface fits that are convenient for assembling and disassembling between the first elastic module 2120 and the accommodation space 2135 of the second elastic module 2130 are also feasible. Moreover, the frustum of a cone shape of the second elastic module 2130 and its upward-opening accommodation space 2135 also allow multiple second elastic modules 2130 to be nested with each other, as Figure 21As shown, this facilitates storing and transporting the second elastic module 2130 in a compact volume in a non-assembled state. It should be noted that for the convenience of nesting, the flexible member 2138 may extend outward and downward obliquely starting from the upper end of the helical spring 2133.

[0087] Figure 23 is Figure 17 and Figure 18 a side view of the main elastic layer 2100 in Figure 23 which will be described below with reference to Figure 23 to describe the elastic characteristics of the main elastic layer 2100. As Figure 23 shown, the main elastic layer 2100 may include a plurality of elastic components 2110 arranged in an array in the X-Y plane. When a downward pressure F is applied to one elastic component 2110a among the plurality of elastic components 2110, or when the elastic component 2110a is located at the concentration point of the pressure F, the elastic component 2110a will be able to perform a first compression process and selectively perform second and third compression processes.

[0088] In the first compression process, the first elastic module 2120a in the elastic component 2110a first directly receives the downward pressure F and is significantly compressed downward, while the second elastic module 2130a is not compressed downward or is not significantly compressed downward. Specifically, for the first elastic module 2120a having an inverted frustum-shaped helical spring, its upper part has a relatively small elastic coefficient (i.e., relatively soft) due to its larger diameter, while its lower part has a relatively large elastic coefficient (i.e., relatively hard) due to its smaller diameter. Thus, under the action of the pressure F, the upper part of the first elastic module 2120a will be first significantly compressed. In the first compression process, although the second elastic module 2130a will receive the pressure transmitted from the first elastic module 2120a due to contact with the first elastic module 2120a, the transmitted pressure basically acts dispersedly on the bottom surface and the conical side surface of the second elastic module 2130a, and the upper end of the second elastic module 2130a will not receive an obvious concentrated downward pressure, so the second elastic module 1130 will not be significantly compressed.

[0089] Moreover, referring to Figure 22, the second elastic modules 2130 of the respective elastic components 2110 form an elastic base layer 2140 through mutual connection at the base 2131, which makes the second elastic modules 2130 not independent of each other, but have mutual influence. In this way, when the flexible member 2138 is an elastic member capable of transmitting force, when the second elastic module 2130a receives a downward pressure, the pressure will be transmitted to a plurality of second elastic modules 2130 in the surrounding area via the flexible member 2138 and the base 2131, and bear the pressure together with them. This also makes the second elastic module 2130a not undergo significant deformation during the first compression process.

[0090] Finally, alternatively or additionally, the second elastic module 2130a can also be made not to undergo significant deformation during the first compression process by making the second elastic module 2130a itself have a larger elastic coefficient, such as a harder helical spring 2133.

[0091] It should be noted that during the first compression process, the elastic deformation of the main elastic layer 2100 is mainly provided by the elastic deformation of the first elastic modules 2120 of the elastic components 2110 alone. Moreover, the first elastic modules 2120 of the respective elastic components 2110 are independent of each other, so the elastic characteristics of an obvious independent spring pad are presented.

[0092] When the deformation of the first elastic module 2120a during the first compression process is not sufficient to completely resist the pressure F, a second compression process can be carried out after the first compression process. During the second compression process, the entire elastic component 2110a is continuously compressed downward by the pressure F. At this time, the first elastic module 2120a and the second elastic module 2130a are compressed downward basically synchronously.

[0093] The upper end of the second elastic module 2130a, or its seat ring 2139, is connected to the base 2131 via the flexible member 2138. When the flexible member 2138 is an elastic member, at the beginning of the second compression process, as the second elastic module 2130a is compressed downward, the downward displacement of the seat ring 2139 caused by the deformation of the second elastic module 2130a can be significantly absorbed by the flexible member 2138 and will not be significantly transmitted to the second elastic modules 2130 of other adjacent elastic components 2110. That is to say, during the second compression process, it is mainly the deformation of the first elastic module 2120a and the second elastic module 2130a that resists the pressure F, and the interconnected elastic net 2150 and other adjacent elastic components 2110 do not participate significantly. The main elastic layer 2100 of the second embodiment will show a higher elastic coefficient during the second compression process than during the first compression process. In other words, people will feel that the second compression process of the main elastic layer 2100 is more "rigid" than the first compression process.

[0094] When the deformations of the first elastic module 2120a and the second elastic module 2130a during the second compression process are not yet sufficient to fully counteract the pressure F, a third compression process can be carried out after the second compression process.

[0095] During the third compression process, since the flexible member 2138 is unable to continue absorbing the deformation of the second elastic module 2130a, or since the seat ring 2139 of the second elastic module 2130a has moved downward to a position substantially flush with the base 2131, the base 2131 will begin to significantly bear the pressure F and directly transmit the deformation of the second elastic module 2130a to the second elastic modules 2130 of other adjacent elastic components 2110, so that the adjacent second elastic modules 2130 will be involved in counteracting the pressure F together. From the perspective of the interconnected elastic network 2150 formed by the interconnected bases 2131, when the base 2131 begins to significantly bear the pressure F, that is, when the interconnected elastic network 2150 begins to significantly bear the pressure F. At this time, the interconnected elastic network 2150 will significantly participate in the compression process and transmit the pressure F to the second elastic modules 2130 of other adjacent elastic components 2110, so that the second elastic modules 2130 of other adjacent elastic components 2110 and the current elastic component 2110a bear the pressure together. In this way, the third compression process will exhibit a higher elastic coefficient than the second compression process. In other words, people will feel that the third compression process of the main elastic layer 2100 is "harder" than the second compression process.

[0096] See Figure 23It should be noted that the interconnected bases 2131 of the respective second elastic modules 2130 can actually form an interconnected elastic network extending in the X-Y plane (such as the part surrounded by the dashed box 2150). This interconnected elastic network 2150 is used to connect or link the second elastic modules 2130 of the respective elastic components 2110 in the main elastic layer 2100, so as to transfer pressure and / or elastic deformation between the interconnected second elastic modules 2130, thereby forming the aforementioned mutual entanglement. In this way, when the elastic component 2110a is compressed to a certain extent so that its second elastic module 2130a begins to undergo elastic deformation, the pressure can be transferred to other adjacent elastic components 2110 (especially adjacent elastic components) via the interconnected elastic network 2150, so that other elastic components 2110 (especially the second elastic modules 2130) can bear the pressure together. In this embodiment, since the base 2131 is located at the upper end of the second elastic module 2130 or the helical spring 2133, relative to the assembled elastic component 2110, the base 2131 is located at a position between its upper end and lower end, which also makes the interconnected elastic network 2150 located between the upper surface and the lower surface of the entire main elastic layer 2100. In other embodiments, only the bases 2131 of some of the second elastic modules 2130 in the main elastic layer 2100 can be interconnected, and the interconnected elastic network 2150 formed in this way can transfer pressure / or elastic deformation only between the interconnected second elastic modules 2130, thereby contributing different elastic characteristics to the main elastic layer 2100.

[0097] Based on the first to third compression processes, the main elastic layer 2100 and the elastic pad 2000 having the same have the following elastic characteristics: 1) showing an obvious three-stage elastic characteristic from "soft" to "hard" to "harder", which is different from the two-stage elastic characteristic of the elastic pad 1000; and 2) showing obvious independent elastic pad characteristics in both the first and second stages, that is, the compression states of different regions of the elastic pad 2000 are independent and do not affect each other.

[0098] In the foregoing description, the base 2131 is lower than the upper end of the second elastic module 2130 and is between the upper and lower ends of the second elastic module 2130. In another embodiment (not shown), the base 2131 may be positioned higher than the upper end of the helical spring 2133, or higher than the seat ring 2139. That is to say, the base 2131 forms the upper end of the entire second elastic module 2130 and is between the upper and lower ends of the entire elastic component 2110. In this way, after only the first elastic module 2120 is compressed, before the first elastic module 2120 and the second elastic module 2130 are compressed synchronously, the interconnected elastic net 2150 formed by the interconnected bases 2131 will participate and involve other adjacent elastic components 2110 to resist the pressure F together. That is to say, the interconnected elastic net 2150 will participate in the work earlier than Figure 23 the situation shown, so that the elastic pad and the main elastic layer exhibit elastic characteristics different from those of the second embodiment.

[0099] In yet another embodiment (not shown), the position of the base 2131 in the second elastic module 2130 can be further lowered, so that the base 2131 is located at the lower end of the second elastic module 2130, and thus the base 2131 is also at the lower end of the entire elastic component 2110. In this way, the interconnected structure formed by the interconnected bases 2131 will not participate in any compression process, so that the elastic pad and the main elastic layer exhibit elastic characteristics different from those of the second embodiment.

[0100] Figure 24 and Figure 25 FIGS. show the assembled elastic pad 3000 according to the third embodiment of the present invention. As Figure 24 and Figure 25 shown, the elastic pad 3000 is substantially flat and extends in the X-Y plane and has a height or thickness extending in the Z direction. The elastic pad 3000 may include a main elastic layer 3100 and a first cushion layer 3200 covering the main elastic layer. The main elastic layer 3100 may be made of an elastic material and provide the main elastic source for the elastic pad 3000. The first cushion layer 3200 may be located above the main elastic layer 3100 and is closer to the human body than the main elastic layer 3100 during use. The first cushion layer 3200 generally may have a substantially continuous and flat surface to provide a more suitable surface for human contact for the elastic pad 3000. The first cushion layer 3200 may also have a certain degree of elasticity to provide an auxiliary elastic source for the elastic pad 3000.

[0101] It should be noted that although the first cushion layer 3200 is generally substantially flat, this does not exclude the upper surface of the first cushion layer 3200 from having concave and / or convex structures 3220 that do not affect the comfort of human contact, and such structures are preferably elastic.

[0102] The main elastic layer 3100 may include a plurality of elastic components 3110 arranged in an array along the X-Y plane. The structures of the elastic pad 3000 and the elastic components 3110 are Figure 26 more clearly visible in the exploded view of. As Figure 26 shown, each elastic component 3110 in the main elastic layer 3100 may include a first elastic module 3120 and a second elastic module 3130 that extend along the height direction Z and are capable of elastically deforming along the height direction Z. The first elastic module 3120 can be inserted downward along the height direction Z into the corresponding second elastic module 3130 and held by it. That is to say, the second elastic module 3130 can be both an elastic module and a holding module for holding the first elastic module 3120. In the assembled state where the first elastic module 3120 is inserted into the second elastic module 3130, along the height direction Z, the upper end portion of the first elastic module 3120 extends out of the accommodation space 3135 of the second elastic module 3130 (see Figure 27 ), so that the upper end portion of the first elastic module 3120 is higher than the second elastic module 3130. At the same time, in the lateral direction perpendicular to the height direction Z, the second elastic module 3130 can circumferentially surround and hold the first elastic module 3120 on the outside of the first elastic module 3120. In this way, when the elastic pad 3000, especially each elastic component 3110 in its main elastic layer 3100, bears a downward pressure, it is the first elastic module 3120 that directly receives the pressure, and the second elastic module 3130 indirectly receives the downward pressure transmitted by the first elastic module 3120.

[0103] It should be noted that in this assembled state, the first elastic modules 3120 of the respective elastic components 3110 can be independent of each other, while the second elastic modules 3130 of adjacent elastic components 3110 can be connected to each other.

[0104] The first elastic modules 3120 of the respective elastic components 3110 in the elastic pad 3000 can adopt a shape and structure similar to that of the first elastic module 1120 in the elastic pad 1000 of the first embodiment or the first elastic module 2120 in the elastic pad 2000 of the second embodiment, such as Figure 13As shown. The assembly process of the elastic pad 3000 is also similar to that of the elastic pads 1000 and 2000 of the first and second embodiments. The main difference between the elastic pad 3000 and the elastic pads 1000 and 2000 lies in the structure of the second elastic module 3130. Except for this, the descriptions of the elastic pads 1000 and 2000 in the foregoing also basically apply to the elastic pad 3000.

[0105] Figure 27 and Figure 28 Schematically shows a second elastic module 3130 that can be applied to the elastic assembly 3110. As Figure 27 and Figure 28 shown, the second elastic module 3130 may include a helical spring 3133 that can elastically deform. The helical spring 3133 can be used as the elastic body of the second elastic module 3130 and is hollow. Along the height direction Z, the helical spring 3133 can be installed and constrained between the mounting cylinder 3132 and the flat base 3131. The base 3131 can be located at the lower end of the elastic assembly 3110. The mounting cylinder 3132 can be made of an inelastic material that is not easily deformed and can have a flange 3139 extending laterally outward at its upper end. In this way, the helical spring 3133 can abut against the lower surface of the flange 3139 of the mounting cylinder 3132 at the upper end to support the mounting cylinder, and can abut against the base 3131 at the lower end. The mounting cylinder 3132 extends downward from its flange 3139 inside the helical spring 3133, so it is basically extended inside the helical spring 3133. The downward or upward movement of the mounting cylinder 3132 can correspondingly compress or release the helical spring 3133. In other embodiments, the mounting cylinder 3132 can also be connected to the upper end of the helical spring 3133 in other suitable ways.

[0106] In order to stably hold the helical spring 3133, the base 3131 may have an annular groove 3131a so that the lower end portion of the helical spring 3133 can be detachably fitted into the annular groove 3131a. Outside the helical spring 3133, a plurality of flexible straps 3134 extend between the mounting cylinder 3132 and the base 3131. In this way, by presetting the length of the flexible straps 3134, the distance between the mounting cylinder 3132 and the base 3131 can be restricted, so that the helical spring 3133 can be constrained between the mounting cylinder 3132 and the base 3131 in a pre-compressed state (not a completely free state). With the pre-compressed helical spring 3133, the formed second elastic module 3130 can not only undergo elastic deformation but also has a certain stiffness. The stiffness of the second elastic module 3130 can be beneficial to maintaining the shape of the second elastic module 3130 in a static state and can provide an appropriate initial hardness or initial supporting force when it is compressed and deformed. The flexible straps 3134 and the mounting cylinder 3132 can be made of the same material and are integrally formed.

[0107] The base 3131 of the second elastic module 3130 may have a connecting portion 3136 for connecting with the base 3131 of the second elastic module 3130 of other adjacent elastic components 3110 during the assembly process to form, for example, Figure 30 the elastic base layer 3140 shown in. The description of the elastic base layer 3140 can refer to the description of the elastic base layer 1140 in the first embodiment, which will not be elaborated here. Similarly to the first embodiment, for the convenience of assembly, the bases 2131 of several second elastic modules 2130 can be integrally formed to form a module including a plurality of second elastic modules. As Figure 4 shown, these connecting portions 3136 may include a slide rail connecting portion 3136c and a chute connecting portion 3136d of the "slide rail - chute" type. The slide rail connecting portion 3136c can be inserted into the chute connecting portion 3136d of the base of another adjacent second elastic module 3130, and the chute connecting portion 3136d can receive the slide rail connecting portion 3136c of the base of another second elastic module 3130. Figure 27 shown, these connecting portions 3136 may include a slide rail connecting portion 3136c and a chute connecting portion 3136d of the "slide rail - chute" type. The slide rail connecting portion 3136c can be inserted into the chute connecting portion 3136d of the base of another adjacent second elastic module 3130, and the chute connecting portion 3136d can receive the slide rail connecting portion 3136c of the base of another second elastic module 3130.

[0108] As Figure 27As shown, the helical spring 3133 of the second elastic module 3130 may be a frustum cone that tapers from the upper end to the lower end in the vertical direction or height direction Z. And, in the assembled state, this frustum cone may be upright, which is different from the inverted frustum cone-shaped helical springs 1133 and 2133 in the first and second embodiments. In this case, the required accommodation space 3135 can be provided by the mounting cylinder 3132 to receive the inverted frustum cone-shaped first elastic module 3120. The mounting cylinder 3132 may be hollow, and its upper end may have an opening 3137U, so that the mounting space 3135 of the mounting cylinder 3132 is open upward. In this way, it is allowed to insert the first elastic module 3120 from above downward into the accommodation space 3135 of the second elastic module 3130, so that the first elastic module 3120 can be held by the second elastic module 3130 to form an assembled elastic assembly 3110. The accommodation space 3135 defined by the inner side surface of the hollow mounting cylinder 3132 may also be an inverted frustum cone that tapers from the upper end to the lower end in the assembled state, so that it can be substantially formed into a conical surface fit with the inverted frustum cone-shaped first elastic module 3120 in the assembled state, so that the second elastic module 3130 holds the first elastic module 3120 more firmly. The mounting cylinder 3132 can firmly hold the first elastic module 3120 only by using this surface fit between it and the first elastic module 3120, without other connection and fixing operations. <>

[0109] and fixing operations. It can be seen that this conical surface fit between the first elastic module 3120 and the accommodation space 3135 of the second elastic module 3130 is particularly convenient for assembling and disassembling the elastic assembly 2110. For details, reference can be made to the relevant description of the elastic assembly 1110 in the first embodiment above, which will not be elaborated here. In other embodiments, other shaped surface fits that are convenient for assembling and disassembling between the first elastic module 3120 and the accommodation space 3135 of the second elastic module 3130 are also feasible.

[0110] The second elastic module 3130 as a whole presents a substantially M-shaped cross-sectional shape. The outer contour formed by the helical spring 3122 of the second elastic module 3130 is basically an upright frustum cone, and the inner contour formed by the mounting cylinder 3132 is an inverted frustum cone, which is Figure 27It can be seen more clearly in the cross-sectional view shown. In addition, the base 3131 of the second elastic module 3130 may have an opening 3131b, and the size of the opening 3131b may be larger than the size of the upper end portion of the second elastic module 3130. For example, it may be larger than the diameter of the annular flange 3139. Since the second elastic module 3130 has a hollow M-shaped shape and the base 3131 at its lower end has an opening 3131b, this allows another second elastic module 3130 to be inserted into the current second elastic module 3130 through the opening 3131b, so that a plurality of second elastic modules 3130 can be nested together with each other in a non-assembled state, as Figure 29 shown, which facilitates storing and transporting the second elastic module 3130 in a compact volume in a non-assembled state.

[0111] See Figure 28 , in which the dashed line D in the figure represents the plane where the bottom surface of the second elastic module 3130 is located, and it is located at the lowest position of the second elastic module 3130. It can be understood that the plane shown by the dashed line D is also the plane on which the bottom surface of the elastic component 3110 and the bottom surface of the main elastic layer 3100 sit, as Figure 25 and 37 shown. Return Figure 28 , it can be seen that the vertical position of the lower end portion of the mounting cylinder 3132 can be significantly higher than the bottom surface of the second elastic module 3130. In this way, when the mounting cylinder 3132 is subjected to a downward pressure, it can move downward by compressing the helical spring 3133. The mounting cylinder 3132 may also have an opening 3137L at its lower end portion. In this way, as Figure 31 shown, when the first elastic module 3120 is inserted into the second elastic module 3130 to form the elastic component 3110, the lower end portion of the first elastic module 3120 will first pass through the upper opening 3137U of the mounting cylinder 3132 and then pass through the lower opening 3137L of the mounting cylinder 3132 until the first elastic module 3120 is firmly held by the mounting cylinder 3132. By pre-determining the taper of the first elastic module 3120 and the mounting cylinder 3132 and the length of the first elastic module 3120, in the assembled state, the lower end portion of the first elastic module 3120 can be higher than the bottom surface of the second elastic module 3130 or the elastic component 3110 shown by the dashed line D, or is suspended above the bottom surface.

[0112] In this way, see Figure 31, when the elastic component 3110 is subjected to a downward pressure F, first, the first elastic module 3120 directly receives the pressure F and is significantly compressed downward by it. During the compression of the first elastic module 3120, due to its contact with the mounting cylinder 3132 of the second elastic module 3130, this pressure will be quickly transmitted to the conical side surface of the mounting cylinder 3132. Since the mounting cylinder 3132 and the lower end portion of the first elastic module 3120 are suspended, the pressure on the conical side surface of the mounting cylinder 3132 will act on the upper end portion of the helical spring 3133 at its flange 3139, so that the second elastic module 3130 is also subjected to an obvious downward pressure and works together with the first elastic module 3120 to resist the pressure F. In other words, for the elastic component 3110 of this embodiment, the first elastic module 3120 and the second elastic module 3130 basically work together from the very beginning to resist the pressure F. This is different from the elastic components 1110 and 2110 in the first and second embodiments, in which during the first compression process, mainly the first elastic modules 1120 and 2120 resist the pressure F, and the second elastic modules 1130 and 2130 do not significantly participate.

[0113] Since the helical spring 3133 of the second elastic module 3130 is a regular truncated cone, while the helical spring (not labeled in the figure) of the first elastic module 3120 is an inverted truncated cone, and they work together when the elastic component 3110 is subjected to a downward pressure F, the overall elastic performance of the elastic component 3110 is similar to Figure 32 the concave-shaped helical spring shown. Compared with the inverted conical helical spring 1124 shown in Figure 13 during the first compression process in the first and second embodiments, the elastic component 3110 of this embodiment will exhibit a more "soft" elastic characteristic at the very beginning.

[0114] In addition, in this third embodiment, the base 3131 of the second elastic module 3130 is located at the bottom surface (dotted line D) of the entire elastic component 3110. Therefore, the connection points of adjacent second elastic modules 3130 are also at the bottom surface of the elastic component 3110. In this way, during the entire compression process of the elastic component 3110, no other elastic components 3110 will be involved, so compared with the elastic components 1110 and 2110 in the first and second embodiments, it exhibits better elastic characteristics of an independent spring pad.

[0115] Compared with an integral concave helical spring, the elastic component 3110 can be composed of two independent conical helical springs, namely a first elastic module 3120 and a second elastic module 3130. In this way, more different elastic properties can be combined by separately adjusting the elastic characteristics of these two helical springs. Moreover, the first elastic module 3120 and the second elastic module 3130 each having a conical shape is conducive to nested storage respectively. Finally, the assembly of the first elastic module 3120 and the second elastic module 3130 is simple, and only needs to insert the first elastic module 3120 into the second elastic module 3130 from above.

[0116] Other embodiments:

[0117] Figure 33 Another elastic component 4110 of an embodiment is schematically shown. As Figure 33 shown, similar to the elastic components 1110, 2110, and 3110 in the first to third embodiments, the elastic component 4110 may include a first elastic module 4120 and a second elastic module 4130 that can elastically deform along the height direction Z of the elastic pad. Along the height direction Z, the upper end portion of the first elastic module may be higher than that of the second elastic module. At the same time, in the transverse direction perpendicular to the height direction Z, the second elastic module 4130 may surround the first elastic module 4120 along its circumferential direction outside the first elastic module 4120. That is, the tall first elastic module 4120 is the inner elastic module, and the short second elastic module 4130 is the outer elastic module.

[0118] Different from the elastic components 1110, 2110, and 3110 in the first to third embodiments, the first elastic module 4120 and the second elastic module 4130 of the elastic component 4110 may not have a mating relationship in which one holds the other. In this way, when the elastic component 4110 is subjected to a downward pressure, the first elastic module 4120 directly receives the pressure first, but the first elastic module 4120 does not significantly transfer the pressure to the second elastic module 4130. Therefore, during the first compression process, the first elastic module 4120 is significantly compressed downward, and the second elastic module 4130 is not compressed downward. In other words, during the first compression process, the deformation of the elastic component 4110 along the height direction Z is entirely provided by the deformation of the first elastic module. Until the first elastic module 4120 is significantly compressed by a certain distance, for example, when its upper end portion is basically flush with the upper end portion of the second elastic module 4130, the second compression process will start. During the second compression process, the second elastic module 4130 can directly receive the pressure together with the first elastic module 4120 and be synchronously compressed downward. In other words, during the second compression process, the deformation of the elastic component 4110 along the height direction Z is provided by the deformation of the first elastic module 4120 and the second elastic module 4130 together.

[0119] It should be noted that, compared with only the first elastic module 4120 resisting pressure during the first compression process, during the second compression process, both the first elastic module 4120 and the second elastic module 4130 resist pressure together. Therefore, the overall elastic component 4110 exhibits a greater elastic coefficient during the second compression process than during the first compression process, and people will feel that the elastic component 4110 and the elastic pad formed by it are "harder" during the second compression process. In this way, the elastic component 4110 can also provide a two-stage elastic characteristic from "soft" to "hard".

[0120] Figure 34 The elastic component 5110 of another embodiment is schematically shown. The difference from the elastic component 4110 is that in the elastic component 5110, the tall first elastic module 5120 is the outer elastic module, and the short second elastic module 5130 is the inner elastic module. The compression process and elastic characteristics of the elastic component 5110 are similar to those of the elastic component 4110.

[0121] Figure 33 and Figure 34 Each elastic module of the elastic components 4110 and 5110 shown in the figure can be a helical spring with an equal diameter in the height direction Z, or it can also be a pocket spring package formed by covering a flexible material outside the helical spring. During assembly, the outer elastic module can be sleeved outside the inner elastic module. Although not shown, the elastic components 4110 and 5110 can also have a base to connect adjacent elastic components to each other when assembling the main elastic layer. Arranging a plurality of elastic components 4110 and 5110 in an array along the X-Y plane can form the main elastic layer of the elastic pad. Laying the first cushion layer such as in the first to third embodiments above the main elastic layer can assemble the required elastic pad.

[0122] In the elastic components of the first to third embodiments, the first elastic module is generally frustum-shaped as a whole, and the accommodation space for holding the first elastic module by the second elastic module is also generally frustum-shaped as a whole. In other embodiments, the accommodation space and the first elastic module may not be tapered as a whole, but each has a tapered portion. The tapered portion of the accommodation space of the second elastic module holds the corresponding tapered portion of the first elastic module and is basically formed as a conical surface fit. Only having a tapered portion formed locally may not be conducive to the compact storage and transportation of the first elastic module and the second elastic module in a nested manner, but it is still feasible when manufacturing and selling an integrated elastic pad.

[0123] In one embodiment, the elastic component may include a first elastic module extending in the height direction of the elastic pad and a holding module for holding the first elastic module. The holding module may be formed with an accommodation space having an upward opening to allow the first elastic module to be inserted downward into the accommodation space from above, and thereby hold the first elastic module. In a state where the first elastic module has been inserted into and held by the accommodation space of the holding module, the upper end portion of the first elastic module may extend upward out of the accommodation space and be higher than the holding module, so that when the elastic component is subjected to a downward pressure, the first elastic module first receives the pressure. The first elastic module may be selected from one of the first elastic modules described in the above embodiments. The holding module may be elastic and may be selected from one of the second elastic modules capable of elastically deforming in the height direction of the elastic pad as described in the above embodiments. The elastic component formed in this way is as described in the first to third embodiments.

[0124] The holding module may also be inelastic. For example, the holding module may have the characteristics of the holding function of the second elastic module (such as the accommodation space, etc.), while the elastic characteristics of the second elastic module (such as a helical spring, etc.) may be omitted. In some embodiments, the holding module may be in the form of a holding seat formed of a material that is not easily deformed and has an accommodation space for holding the first elastic module as described above. Such a holding module is a substantially rigid module that substantially does not deform in the height direction Z. It should be understood that the elastic component constituted by such a holding module also has the advantages of being convenient for assembly and disassembly as described for the elastic components in the first and third embodiments, that is, the assembly and disassembly of the elastic component can be achieved by a simple single insertion or pulling action.

[0125] Take Figure 31 the illustrated elastic component 3110 as an example for illustration. In order to enable the holding module (here the second elastic module 3130) to firmly hold the first elastic module 3120, in the assembled state, the height H1 of the portion of the first elastic module 3120 above the upper end portion of the holding module preferably does not exceed 80% of the total height H2 of the first elastic module 3120. Generally, H1 may be between 30% and 70% of H2. This also applies to the elastic components in the first and second embodiments, as well as the elastic components including other types of holding modules.

[0126] In one embodiment, the elastic pad may include a main elastic layer, and the main elastic layer may include a plurality of elastic components and an interconnected elastic net. Each elastic component may include a first and a second elastic module. The elastic pad may be the elastic pads 1000 and 2000 of the first and second embodiments, wherein the interconnected elastic net may be formed by interconnected bases 1131 and 2131, as Figure 16 and 27The interconnected resilient meshes 1150, 2150 shown in [figure]. In other embodiments, the interconnected resilient mesh may be other structures independent of the base. For example, the base 2131 and the flexible member 2138 in the second resilient module 2130 shown in [figure] may be omitted, and the seat rings 2139 of adjacent second resilient modules may be interconnected with connecting members during assembly to form an internetwork. Another example is that for the resilient assembly 4110 shown in [figure], when a plurality of such resilient assemblies 4110 are densely arranged in an array, a main resilient layer 4100 may be formed, as shown in [figure]. It should be understood that for the sake of clarity of illustration, only a small number of resilient assemblies 4110 are shown. Above the bottom surface of the main resilient layer 4100, the second resilient modules 4130 of the resilient assemblies 4110 adjacent in the directions parallel and perpendicular to the paper plane may be connected together at local positions by bonding, welding, etc., and the connection positions are schematically indicated by black dots in the figure. Such a connection method can also form the required interconnected resilient mesh 4150. Figure 20 In [figure], the base 2131 and the flexible member 2138 in the second resilient module 2130 are omitted, and the seat rings 2139 of adjacent second resilient modules are interconnected with connecting members during assembly to form an internetwork. Another example is that for the resilient assembly 4110 shown in [figure], when a plurality of such resilient assemblies 4110 are densely arranged in an array, a main resilient layer 4100 may be formed, as shown in [figure]. It should be understood that for the sake of clarity of illustration, only a small number of resilient assemblies 4110 are shown. Above the bottom surface of the main resilient layer 4100, the second resilient modules 4130 of the resilient assemblies 4110 adjacent in the directions parallel and perpendicular to the paper plane may be connected together at local positions by bonding, welding, etc., and the connection positions are schematically indicated by black dots in the figure. Such a connection method can also form the required interconnected resilient mesh 4150. Figure 33 For the resilient assembly 4110 shown in [figure], when a plurality of such resilient assemblies 4110 are densely arranged in an array, a main resilient layer 4100 may be formed, as shown in [figure]. It should be understood that for the sake of clarity of illustration, only a small number of resilient assemblies 4110 are shown. Above the bottom surface of the main resilient layer 4100, the second resilient modules 4130 of the resilient assemblies 4110 adjacent in the directions parallel and perpendicular to the paper plane may be connected together at local positions by bonding, welding, etc., and the connection positions are schematically indicated by black dots in the figure. Such a connection method can also form the required interconnected resilient mesh 4150. Figure 35 It should be understood that for the sake of clarity of illustration, only a small number of resilient assemblies 4110 are shown. Above the bottom surface of the main resilient layer 4100, the second resilient modules 4130 of the resilient assemblies 4110 adjacent in the directions parallel and perpendicular to the paper plane may be connected together at local positions by bonding, welding, etc., and the connection positions are schematically indicated by black dots in the figure. Such a connection method can also form the required interconnected resilient mesh 4150. Figure 35 Above the bottom surface of the main resilient layer 4100, the second resilient modules 4130 of the resilient assemblies 4110 adjacent in the directions parallel and perpendicular to the paper plane may be connected together at local positions by bonding, welding, etc., and the connection positions are schematically indicated by black dots in the figure. Such a connection method can also form the required interconnected resilient mesh 4150.

[0127] In one embodiment, a resilient pad may include a flat base layer located in its extended plane and a plurality of first resilient modules. The base layer may have an upper surface and a lower surface opposite to the upper surface. The base layer may have a plurality of holding pits distributed in an array on its upper surface, and each holding pit is recessed downward from the upper surface of the base layer. Each first resilient module may extend along the height direction of the resilient pad and be capable of elastic deformation along the height direction. The lower end portion of each first resilient module may be inserted into a pit of the base layer so as to be held by the base layer. The upper end portion of each first resilient module may extend upward and beyond the upper surface of the base layer. The base layer may be elastic along the height direction Z, and such a base layer may be, for example, the elastic base layers 1140, 2140, 3140 in the first to third embodiments. Such an elastic base layer is formed by interconnecting a plurality of second resilient modules 1130, 2130, 3130 extending in the height direction Z in the extended plane X-Y, and the accommodation spaces therein form the holding pits in this embodiment. For example, see [figure]. Figure 4, the accommodation space 1135 of the second elastic module 1130 is also the holding pit 1143 of the elastic base layer 1140. For the specific structure of the second elastic module, reference can be made to the description thereof in the foregoing text, which will not be elaborated herein. It should be understood that the second elastic bodies of the second elastic modules 1130, 2130, 3130 constituting the elastic base layers 1140, 2140, 3140 may be helical springs 1133, 2133, 3133 extending in the height direction, which makes the elastic base layers 1140, 2140, 3140 actually a spring net with a certain thickness. In other embodiments, the base layer may adopt other suitable forms of spring nets.

[0128] In another embodiment, the base layer may also be integrally formed of other elastic materials, such as sponge, silica gel, rubber, etc., as Figures 36 - 40 shown. Figure 36 The base layer 6140 is shown therein. The base layer 6140 has a flat main body 6144 made of an elastic material such as sponge, an upper surface 6141, and a lower surface 6142 opposite to the upper surface 6141. The base layer 6140 may also have a plurality of holding pits 6143 arranged in an array on its upper surface 6141. Each holding pit 6143 is recessed from the upper surface 6141 of the base layer 6140 into the main body 6144, that is, recessed downward toward the lower surface 6142. The holding pit 6143 may have an inverted frustum shape, that is, its lateral dimension tapers along the direction from the upper surface 6141 to the lower surface 6142, which is more clearly seen in Figure 37 the sectional view of. This frustum shape of the holding pit 6143 is particularly suitable for holding the inverted frustum-shaped first elastic module 6120, as Figure 38 shown. Each first elastic module 6120 may extend along the height direction Z of the elastic pad and be capable of elastically deforming along the height direction Z. Each first elastic module 6120 corresponds to a holding pit 6143, and the lower end portion of the first elastic module 6120 may be inserted into the corresponding holding pit 6143 in the base layer 6140 so as to be held by the base layer 6140. As Figure 39As shown, in a state where the first elastic module 6120 has been inserted into the holding pit 6143, the upper end portion of the first elastic module 6120 can extend upward outside the holding pit 6143, that is, extend beyond the upper surface of the base layer 6140. By laying the first cushion layer 6200 on the array of the first elastic modules 6120, the elastic pad 6000 can be formed. The first elastic module 6120 can be similar to the first elastic modules in the foregoing embodiments, such as the first elastic modules 1120, 2120, and 3120, which will not be described in detail herein. In other embodiments, the base layer 6140 can also be inelastic, and thus does not contribute elasticity to the elastic pad 6000, but only serves to hold the first elastic module 6120. In this case, the main body 6144 of the base layer 6140 can be made of a suitable inelastic material.

[0129] As Figure 40 As shown, the elastic pads of the foregoing embodiments can form a bed after being wrapped in an outer cover and placed on a support bed frame. In other embodiments, the elastic pads of the foregoing embodiments can also be directly placed on the ground as a bed under suitable circumstances. In other embodiments, the elastic pads of the foregoing embodiments can be arranged on a sofa support to form the required sofa.

[0130] The foregoing are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements can be made without departing from the principle of the present invention, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An elastic component for an elastic pad, comprising a first elastic module and a second elastic module that extend along the height direction of the elastic pad and are capable of elastically deforming along the height direction; in the transverse direction perpendicular to the height direction, the second elastic module is an outer elastic module, and the first elastic module is an inner elastic module. The outer elastic module surrounds the inner elastic module along its circumferential direction outside the inner elastic module. Among them, Along the height direction, the upper end portion of the first elastic module is higher than the second elastic module, so that when the elastic component is subjected to a downward pressure, the first elastic module directly receives the pressure first, and then the second elastic module directly receives the pressure or indirectly receives the downward pressure transmitted by the first elastic module. The compression process in which the elastic component is compressed due to the downward pressure includes a first compression process. In the first compression process, all or mainly the deformation of the elastic component along the height direction is provided by the deformation of the first elastic module. After the first compression process, when the elastic component is continuously compressed downward by the pressure, the compression process of the elastic component further includes a second compression process. In the second compression process, the deformation of the elastic component along the height direction is provided by the deformation of the first elastic module and the second elastic module together. The second elastic module is formed with an upwardly opening receiving space to allow the first elastic module to be inserted downward into the receiving space of the second elastic module from above; wherein, in the state where the first elastic module has been inserted into the receiving space of the second elastic module and is held by it, the upper end portion of the first elastic module extends upward out of the receiving space. From top to bottom along the height direction, the receiving space is tapered or has a tapered portion, and the first elastic module is tapered; wherein, in the state where the first elastic module has been inserted into the receiving space of the second elastic module, the receiving space of the second elastic module holds the first elastic module in a tapered surface mating manner.

2. The elastic component according to claim 1, characterized in that The second elastic module includes a hollow second elastic main body, and the receiving space is defined by the inner side surface of the second elastic main body; the second elastic main body is a helical spring integrally in an inverted conical or frustum conical shape.

3. The elastic component according to claim 2, wherein The second elastic module further includes a base for mounting the second elastic main body. The base has a connecting portion for connecting the base of the current elastic component with the bases of other adjacent elastic components.

4. The elastic component according to claim 3, characterized in that, The base is located at the upper end portion of the second elastic module and is rigidly abutted or connected to the upper end portion of the second elastic main body. The base is at a position between the upper end portion and the lower end portion of the entire elastic component.

5. The elastic component according to claim 3, characterized in that, The base is connected to the upper end portion of the second elastic main body via a flexible member to allow relative movement along the height direction between the upper end portion of the second elastic main body and the base; the flexible member is elastic.

6. The elastic component according to claim 5, wherein Along the height direction, the base is positioned below the upper end of the second elastic module and is at a position between the upper end and the lower end of the entire elastic component.

7. The elastic component according to claim 3, wherein The base is located at the lower end of the second elastic module so that the base is at the lower end of the entire elastic component.

8. The elastic component according to any one of claims 1-7, characterized in that The second elastic module is hollow and conical or frustoconical, and its upper end has an opening to allow another second elastic module to be inserted into the interior of the second elastic module through the opening, so that a plurality of the second elastic modules can be stored in a nested manner in the non-assembled state.

9. The elastic component according to claim 1, wherein The second elastic module includes a hollow second elastic body and a hollow mounting cylinder. The upper end of the mounting cylinder is open, and the accommodating space is defined by the inner side surface of the mounting cylinder; the mounting cylinder rigidly abuts against or is connected to the upper end of the second elastic body; the mounting cylinder extends inside the second elastic body.

10. The elastic component according to claim 9, wherein The second elastic body is conical or frustoconical in shape. Along the height direction, the lateral dimension of the second elastic body gradually increases from the upper end to the lower end.

11. The elastic component according to claim 10, wherein The mounting cylinder is conical or frustoconical in shape. Along the height direction, the lateral dimension of the mounting cylinder gradually decreases from the upper end to the lower end.

12. The elastic component according to claim 11, characterized in that The position of the lower end of the mounting cylinder is higher than the bottom surface of the second elastic module to allow the mounting cylinder to move downward by compressing the second elastic body when the mounting cylinder is subjected to a downward pressure; the lower end of the mounting cylinder is open. In the assembled state, the lower end of the first elastic module passes downward through the lower end of the mounting cylinder, and the position of the lower end of the first elastic module is higher than the bottom surface of the second elastic module.

13. The elastic component according to any one of claims 9-12, characterized in that, The second elastic module further includes a base for mounting the second elastic body. The base has a connecting portion for connecting the current elastic component to the bases of other adjacent elastic components.

14. The elastic component according to claim 13, wherein, The base is located at the lower end of the second elastic module and abuts against or is connected to the lower end of the second elastic body, and the base is at the lower end of the entire elastic component.

15. The elastic component according to claim 14, wherein The lower end of the second elastic module has an opening to allow another second elastic module to be inserted into the interior of the second elastic module through the opening, so that a plurality of the second elastic modules can be stored in a nested manner in the non-assembled state.

16. The elastic component according to claim 15, characterized in that, The first elastic module is formed as an inverted cone or frustum of a cone.

17. The elastic component according to claim 16, wherein The first elastic module includes a first elastic body; the first elastic body is a helical spring that is integrally conical or frustoconical.

18. The elastic component according to claim 16, wherein The first elastic module is hollow and its upper end is open to allow a plurality of the first elastic modules to be stored in a nested manner in the non-assembled state.

19. The elastic component according to claim 2 or 17, characterized in that, The first elastic module and / or the second elastic module further includes a pre-compression structure for pre-compressing their respective corresponding elastic bodies; The pre-compression structure includes: a flexible sleeve that wraps the elastic body, and the elastic body is in a compressed state within the flexible sleeve; or, a restraint band that extends between the upper end and the lower end of the elastic body to compress the elastic body by restricting the distance between the upper end and the lower end of the elastic body.

20. An elastic pad, comprising a main elastic layer providing a main elastic source, the main elastic layer comprising a plurality of elastic components as described in any one of claims 1-19, and the plurality of elastic components being arranged in an array in the extension plane of the elastic pad.

21. The elastic pad according to claim 20, wherein, It further comprises a first cushion layer covering the main elastic layer.

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