Compressible seat with spring framework

Abstract

The invention relates to a compressible seat with a spring framework. The compressible seat comprises a compressible square sponge seat or a plurality of spliced square sponge seats; the sponge base comprises a bottom sponge block and four side surrounding sponge blocks, a top sponge block covers the upper ends of the four side surrounding sponge blocks, and the bottom sponge block, the side surrounding sponge blocks and the top sponge block define a square containing cavity; the spring framework is arranged in the containing cavity in a matched mode, used for supporting the cotton jacking block and comprises a plurality of spring bag sets arranged in a matrix mode, each spring bag set comprises a plurality of installation bags and springs, the installation bags are sequentially connected in an abutting mode, the springs are arranged in the installation bags respectively, the installation bags are cylindrical, and the upper ends and the lower ends of the springs abut against the inner walls of the upper ends and the lower ends of the installation bags. The circumferential side wall of the spring abuts against the side inner wall of the mounting bag. At least the exposed part of the seat is coated with the elastic fabric. According to the scheme, the spring framework with high resilience, fatigue resistance and compressibility is arranged in the sponge seat, so that comprehensive requirements of the sofa on comfort, durability and transportation convenience are met.

Description

Technical Field

[0001] The present invention relates to the technical field of sofas, and particularly to a compressible seat with a spring skeleton. Background Art

[0002] A sofa is a multi-seat chair with cushions, generally made of metal or wood, and is a backrest chair equipped with springs or thick foam plastics, with armrests on both sides, and is a kind of software furniture. Currently, in order to facilitate the transportation and storage of sofas, sofas are processed into combined structures. Such sofas are very bulky, which is extremely inconvenient for consumers without elevators or with narrow elevators to move. Currently, in order to facilitate transportation and handling, a fully sponge compressible sofa is made. For example, a Chinese invention patent with the publication number CN217065817U discloses a fully sponge compressible sofa, which includes a sponge mounting base and at least one sponge sofa seat arranged on the sponge mounting base. The sponge mounting base includes a base and two armrests symmetrically arranged on the base. Each armrest includes an armrest main body and a limiting flange arranged on one side of the armrest main body. Each sponge sofa seat includes a seat cushion and a backrest arranged at one end of the seat cushion. The side of any one of the armrests where the limiting flange is arranged faces the other armrest. When the sponge sofa seat is installed on the sponge mounting base, the limiting flange of each armrest abuts against the seat cushion of one sponge sofa seat to limit the position of the sponge sofa seat on the sponge mounting base. This fully sponge compressible sofa is easy to install and can be assembled or disassembled according to needs, bringing great convenience to the transportation and handling of sofas.

[0003] The fully sponge compressible sofa in the above solution is very convenient for transportation and handling after compression, but after the fully sponge compressible sofa is compressed and transported to the user in a compression bag, the resilience performance of the fully sponge cannot be guaranteed, and some products cannot be restored to the original appearance of the sofa. In addition, with single sponge support, it is easy to deform after long-term use, lacks stability, and sitting for a long time easily causes uneven stress on the lumbar spine. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a compressible seat with a spring skeleton. By combining a sponge seat and a spring bag group as a supporting seat cushion, it is easy to assemble, and the entire seat can be put into an air compression bag for compression to reduce its volume, which is very convenient for transportation and handling. It solves the problems of traditional sofas being bulky, occupying a large volume during transportation, having a small loading capacity in containers, high costs, and difficult assembly. At the same time, the spring bag group constitutes the main support, with dynamic resilience and not easy to collapse. The spring skeleton with high resilience, anti-fatigue property and compressibility meets the comprehensive requirements of sofas for comfort, durability and transportation convenience, and solves the problem of easy deformation and insufficient support of existing compressible sofas.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A compressible seat with a spring skeleton, characterized in that it includes a compressible: A square sponge seat, or a plurality of square sponge seats joined together; the sponge seat includes a bottom sponge block and four side surround sponge blocks erected on the upper edges of the four sides of the bottom sponge block, the four side surround sponge blocks are symmetrically distributed in pairs, a top sponge block is covered on the upper ends of the four side surround sponge blocks, and the bottom sponge block, the side surround sponge blocks and the top sponge block enclose a square accommodation cavity; A spring skeleton, adaptively arranged in the accommodation cavity for supporting the top sponge block, which includes a plurality of spring bag groups arranged in a matrix, the spring bag group includes a plurality of installation bags connected in sequence and springs respectively arranged in the installation bags, the installation bag is in a cylindrical shape, the spring is longitudinally arranged in the installation bag, the upper and lower ends of the spring abut against the inner walls of the upper and lower ends of the installation bag, and the circumferential side wall of the spring abuts against the inner side wall of the installation bag; pores for adding spices are formed in the spring; An elastic fabric, at least the exposed part of the seat is covered with the elastic fabric.

[0006] Preferably, adjacent installation bags in the spring bag group are sewn together.

[0007] Preferably, the plurality of spring bag groups include first spring bag groups on both sides and a plurality of second spring bag groups between them. A hot melt adhesive is pasted in the middle of one side of the installation bag in the first spring bag group opposite to the second spring bag group, and hot melt adhesives are pasted in the middle of both sides of the installation bag in the second spring bag group. The plurality of spring bag groups are bonded and fixed by the hot melt adhesive to form a square integral body adapted to be placed in the square accommodation cavity.

[0008] Preferably, an anti-slip cloth is provided on the lower end surface of the bottom sponge block, and the bottom sponge block and the anti-slip cloth, the side surround sponge block and the bottom sponge block, adjacent side surround sponge blocks, and the side surround sponge block and the top sponge block are bonded by glue.

[0009] Preferably, the elastic fabric is corduroy.

[0010] Preferably, the compressible sofa includes a rectangular sponge seat, and also includes two compressible armrest sponge blocks and a backrest sponge block. The spring skeleton is adaptively installed in the accommodation cavity of the sponge seat. The two armrest sponge blocks are bonded to both sides of the upper end of the top sponge block, and the backrest sponge block is bonded to the rear side of the upper end of the top sponge block; a first arc surface protrudes outward on the surface of the backrest sponge block facing the top sponge block, and a second arc surface adapted to the first arc surface is recessed inward at the inner end of the armrest sponge block. The first arc surface and the second arc surface are bonded and fixed, and at least the exposed part of the surface of the sponge seat, the armrest sponge block and the backrest sponge block is provided with an elastic fabric.

[0011] Preferably, the compressible sofa includes a plurality of rectangular sponge seats that are joined together. Adjacent sponge seats are connected by Velcro or cable ties. The sofa also includes two compressible armrest sponge blocks and a backrest sponge block disposed at the rear of each sponge seat. A spring skeleton is disposed in the accommodation cavity of each sponge seat. The two armrest sponge blocks are adhesively bonded to the outer sides of the upper ends of the top sponge blocks on both sides. Each backrest sponge block is adhesively bonded to the rear side of the upper end of the corresponding top sponge block. Adjacent backrest sponge blocks are adhesively fixed to each other. On the backrest sponge block, the surface facing the top sponge block protrudes outward to form a first arc surface. The inner end of the armrest sponge block is recessed inward to form a second arc surface adapted to the first arc surface. The first arc surface and the second arc surface are adhesively fixed. At least a part of the surface of the sofa exposed on the sponge seat, the armrest sponge block, and the backrest sponge block is provided with an elastic fabric.

[0012] Preferably, the compressible sofa includes a rectangular sponge seat or a square sponge seat. It also includes a compressible armrest sponge block and a backrest sponge block. When the sponge seat is a rectangular sponge seat, the spring skeleton is adaptively installed in the accommodation cavity of the sponge seat. The backrest sponge block is configured as a long backrest sponge block and is adhesively bonded to the long side of the upper end of the top sponge block. The armrest sponge block is adhesively bonded to the wide side of the upper end of the top sponge block. Or the backrest sponge block is configured as a short backrest sponge block and is adhesively bonded to the wide side of the upper end of the top sponge block. The armrest sponge block is adhesively bonded to the long side of the upper end of the top sponge block and forms a gap with this long side. Or when the sponge seat is a square sponge seat, the backrest sponge block and the armrest sponge block are adhesively bonded to two adjacent sides of the upper end of the top sponge block. When the sponge seat is a rectangular sponge seat, the surface of the backrest sponge block facing the top sponge block protrudes outward to form a first arc surface. The inner end of the armrest sponge block is recessed inward to form a second arc surface adapted to the first arc surface. The first arc surface and the second arc surface are adhesively fixed. When the sponge seat is a square sponge seat, the surface where the backrest sponge block and the armrest sponge block are in contact is an inclined surface. At least a part of the surface of the sofa exposed on the sponge seat, the armrest sponge block, and the backrest sponge block is provided with an elastic fabric.

[0013] Preferably, the compressible sofa includes a rectangular sponge seat and also includes a compressible backrest sponge block. The spring skeleton is adaptively installed in the accommodation cavity of the sponge seat. The backrest sponge block is adhesively bonded to the wide side or the long side of the upper end of the top sponge block. At least a part of the surface of the sofa exposed on the sponge seat, the armrest sponge block, and the backrest sponge block is provided with an elastic fabric.

[0014] Preferably, the compressible sofa includes a square sponge seat. The spring skeleton is adaptively installed in the accommodation cavity of the sponge seat. At least a part of the surface of the sofa exposed on the sponge seat is provided with an elastic fabric.

[0015] The present invention adopts the above technical solutions and has the following effects: ①, The seating furniture at least includes a compressible sponge seat, a spring framework, and an elastic fabric. The spring framework is adaptively installed in the accommodation cavity of the sponge seat and plays a major supporting role for the sponge seat. The spring framework includes multiple spring bag groups, and each spring bag group further includes multiple installation bags and springs disposed in the installation bags, that is, each spring is independently bagged. The two ends and the side wall of the spring are in close contact with the inner wall of the installation bag. The spring has a good resilience effect and can fully recover even after being compressed, unlike a pure sponge that sags too deeply and has poor resilience performance, affecting the user experience. At the same time, each spring operates independently and can automatically adjust the supporting force according to the sitting posture. For example, the forces on the waist and hips are different, reducing the pressure on the lumbar spine and avoiding back pain caused by insufficient support. It takes into account both compressibility and supportiveness, making the seating furniture more comfortable and durable, and solving the problem of easy deformation and insufficient support of existing compressible sofas. ②, The sponge seat, the spring framework, and the elastic fabric are all compressible materials. The entire seating furniture can be packed into an air compression bag for compression to reduce its volume, making transportation and handling very convenient, and solving the problems of large volume occupied during transportation, low loading capacity of the container, and high costs in the traditional structure of the sofa. ③, Springs are packaged in independent installation bags, and the sitting pressure distribution is more uniform, reducing local pressure. ④, The springs are wrapped in the installation bags, avoiding metal friction noise, having strong anti-interference ability, and good sound insulation effect. ⑤, The porosity of the spring structure is larger than that of the sponge, and the air circulation is better. It is not easy to get stuffy and sweaty after sitting for a long time, reducing peculiar smell and bacterial growth. Fragrances can be added to the gaps inside the springs. ⑥, The sponge is prone to collapse after use, while the independent spring has a slow attenuation of the supporting force and a longer service life. ⑦, If a certain installation bag is damaged, a single installation bag can be replaced by disassembling the local stitching thread without scrapping the entire spring framework, improving the maintainability of the product and reducing the maintenance cost.

[0016] ⑧, After stitching, the spring bag groups form pre-assembled strip-shaped units, and subsequently, they only need to be quickly assembled into a square whole adapted to the accommodation cavity through hot melt adhesive bonding, greatly reducing the on-site assembly complexity. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structure schematic diagram of a single-person compressible seating furniture.

[0018] Figure 2 It is Figure 1 the front structure schematic diagram of

[0019] Figure 3 It is Figure 1 the top view cross-sectional structure schematic diagram of

[0020] Figure 4 It is Figure 1 the side schematic diagram of the middle armrest sponge block in

[0021] Figure 5 Schematic diagram of the three-dimensional structure of a two-person compressible seat

[0022] Figure 6 It is Figure 5 front structure schematic diagram

[0023] Figure 7 Schematic diagram of the three-dimensional structure of a three-person compressible seat

[0024] Figure 8 It is Figure 7 front structure schematic diagram

[0025] Figure 9 Schematic diagram of the three-dimensional structure of a two-person compressible seat with a single armrest

[0026] Figure 10 It is Figure 9 front structure schematic diagram

[0027] Figure 11 Schematic diagram of the three-dimensional structure of a chaise longue compressible seat

[0028] Figure 12 It is Figure 11 front structure schematic diagram

[0029] Figure 13 Schematic diagram of the three-dimensional structure of a corner compressible seat

[0030] Figure 14 It is Figure 13 front structure schematic diagram

[0031] Figure 15 Schematic diagram of the three-dimensional structure of a two-person compressible seat without armrests

[0032] Figure 16 It is Figure 15 front structure schematic diagram

[0033] Figure 17 Schematic diagram of the three-dimensional structure of a single-person compressible seat without armrests

[0034] Figure 18 It is Figure 17 front structure schematic diagram

[0035] Figure 19 Schematic diagram of the three-dimensional structure of a single-sponge seat compressible seat

[0036] Figure 20 It is Figure 19 front structure schematic diagram

[0037] Figure 21Schematic diagram of the arrangement of the hot melt adhesive.

[0038] Figure 22 Schematic diagram of the arrangement of the anti-slip cloth. Detailed implementation manners

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0042] In the present invention, unless otherwise clearly specified and defined, the terms "mount", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0044] Such as Figures 1 - 22 shown, a compressible seat with a spring skeleton, comprising a compressible: a square sponge seat 1, or a plurality of square sponge seats 1 joined together; the sponge seat 1 includes a bottom sponge block 2 and four side surround sponge blocks 3 erected on the upper peripheral edges of the bottom sponge block 2, the four side surround sponge blocks 3 are symmetrically distributed in pairs, a top sponge block 4 is covered on the upper ends of the four side surround sponge blocks 3, and the bottom sponge block 2, the side surround sponge blocks 3 and the top sponge block 4 enclose a square accommodation cavity 5; a spring skeleton, adaptively arranged in the accommodation cavity 5 for supporting the top sponge block 4, which includes a plurality of spring bag groups arranged in a matrix, the spring bag group includes a plurality of mounting bags 6 connected in sequence and adjacent to each other, and springs 7 respectively arranged in the mounting bags 6, the mounting bag 6 is cylindrical, the spring 7 is longitudinally arranged in the mounting bag 6, the upper and lower ends of the spring 7 abut against the inner walls of the upper and lower ends of the mounting bag 6, and the circumferential side wall of the spring 7 abuts against the inner side wall of the mounting bag 6; pores for adding spices are formed in the spring 7; an elastic fabric, at least the exposed part of the seat is covered with the elastic fabric; The compressible seat with a spring skeleton can be used as a complete set of modular sofas through permutation and combination, or can also be used alone as a seat.

[0045] In the above technical solution, the seating furniture at least includes a compressible sponge seat, a spring skeleton, and an elastic fabric. The spring skeleton is adaptively installed in the accommodation cavity of the sponge seat and plays a main supporting role for the sponge seat. The spring skeleton includes multiple spring bag groups, and each spring bag group further includes multiple installation bags and springs disposed in the installation bags. That is, each spring is independently bagged. The two ends and the side wall of the spring are in close contact with the inner wall of the installation bag. Therefore, the entire seating furniture can be placed in an air compression bag for compression to reduce its volume, which is very convenient for transportation and handling, solving the problems of traditional sofas being bulky, occupying a large volume during transportation, having a small loading capacity in containers, and high costs. At the same time, the spring bag groups constitute the main support, with dynamic resilience and not easily collapsing, taking into account compressibility and supportiveness, making the seating furniture more comfortable and durable, and solving the problem of existing compressible sofas being prone to deformation and insufficient support. At the same time, each spring operates independently and can automatically adjust the supporting force according to the sitting posture. For example, the forces on the waist and hips are different, reducing the pressure on the lumbar spine and avoiding back pain caused by insufficient support, being healthier.

[0046] In addition, the number of independent pocket springs is usually 200 - 500 per square meter, which is denser than about 50 - 100 of the integral spring network. The sitting pressure distribution is more uniform, reducing local compression such as numbness in the thighs and buttocks.

[0047] The independent springs do not interfere with each other. The springs are wrapped in non-woven installation bags, avoiding metal friction noise. The sound insulation effect is improved by 50% compared to the integral spring network.

[0048] The spring resilience speed is moderate, about 0.3 - 0.5 seconds. It is neither as rigid as a hard wooden board nor as deeply sunken as pure sponge. The sitting posture adjustment is easier, with dynamic resilience and not tiring after long sitting.

[0049] The spring structure has good air permeability, with a porosity > 70%, while that of the sponge is only 20% - 30%. The air circulation in the sponge seat is better. It is not easily stuffy and sweaty after long sitting, and the temperature of the sitting surface is 3 - 5°C lower than that of pure sponge. In a humid environment such as in southern regions, it can prevent mildew and moisture, reducing odor and bacterial growth. Moreover, the pores in the spring structure in the independent bag can be added with spices and can be used in combination according to the scenario.

[0050] In addition, the supporting force attenuation of high-quality independent springs is < 10% in 10 years, while the high-density sponge may collapse by 30% in 3 - 5 years. Therefore, this seating furniture has the characteristics of being extremely durable, not easily collapsing, and having strong anti-attenuation ability.

[0051] If a certain installation bag is damaged, a single installation bag can be replaced by disassembling the local stitching line without scrapping the entire spring skeleton, improving the maintainability of the product and reducing the maintenance cost.

[0052] Furthermore, adjacent mounting bags 6 in the spring bag group are connected by stitching. In this technical solution, the stitched spring bag group forms a pre-assembled strip unit, and subsequently, it can be quickly assembled into a square integral body adapted to the accommodation cavity only by hot melt adhesive bonding, greatly reducing the on-site assembly complexity.

[0053] Each cylindrical mounting bag independently wraps a single spring, and the relative positions of adjacent mounting bags are fixed by stitching to ensure that the spring always remains vertical within the mounting bag. This design prevents the spring from laterally shifting or tilting when compressed, avoiding problems such as uneven support force or local collapse caused by spring misalignment.

[0054] The cylindrical shape of the mounting bag closely fits the circumferential side wall of the spring, and stitching further restricts the lateral displacement of adjacent mounting bags, forming a stable matrix arrangement. Even when the sofa is subjected to lateral pressure (such as a person leaning on it), the spring bag group can still maintain its overall shape through the stitching structure, preventing the mounting bags from stacking or misaligning.

[0055] Stitching connection allows each mounting bag to deform independently when compressed (such as shrinking under local pressure), and at the same time transmits the resilience between adjacent mounting bags through the stitching thread. This design not only retains the independent movement characteristics of individual springs but also forms an overall coordinated resilience through stitching, ensuring that the sofa quickly returns to its original shape after being compressed.

[0056] The stitching process is more resistant to repeated stretching than pure adhesive bonding, can withstand the mechanical stress of compression-release cycles for a long time, and reduces the risk of connection failure caused by long-term use.

[0057] Furthermore, the multiple spring bag groups include first spring bag groups on both sides and multiple second spring bag groups between them. A hot melt adhesive is pasted in the middle of one side of the mounting bag 6 in the first spring bag group relative to the second spring bag group, and hot melt adhesives are pasted in the middle of both sides of the mounting bag 6 in the second spring bag group. The multiple spring bag groups are fixedly bonded by hot melt adhesive to form a square integral body adapted to be placed in the square accommodation cavity 5. In this technical solution, after the hot melt adhesive cures, it forms a flexible bonding layer, allowing the spring bag group to undergo minor deformations (such as local compression or tilting) when compressed, avoiding problems such as stress concentration or cracking caused by rigid bonding (such as epoxy resin); the bonding area is concentrated in the central axis region, which not only ensures the lateral fixation of adjacent spring bag groups but also allows a certain degree of freedom to be retained in the edge region, improving the anti-shear performance of the overall framework; the hot melt adhesive is in a liquid state when heated and quickly cures when cooled, without the need for long-term pressurization or static placement, greatly shortening the assembly time and adapting to the high-efficiency production requirements of industrial assembly lines. The hot melt adhesive does not contain volatile organic compounds (VOCs), avoiding the corrosion risk of traditional solvent-based glues to sponges or fabrics, and at the same time meeting environmental protection standards.

[0058] Such as Figure 21As shown in the figure, multiple bonding points can be set on the side wall of the spring bag with hot melt adhesive to improve stability, or they can be set at the upper and lower ends of the spring bag to form an integral part with the entire sponge seat, improving overall stability and providing better support effect.

[0059] Therefore, the stitching process is responsible for maintaining the close arrangement of the internal units of the spring bag group, while the hot melt adhesive focuses on strengthening the connection between the external spring bag groups. When the sofa bears dynamic loads (such as the impact force when a person sits down), the elastic bonding layer of the hot melt adhesive can absorb the instantaneous impact energy, and the stitching structure provides long-term tensile strength. The two work together to extend the skeleton life, fix the spring bag group and retain the compression deformation space; they complement each other to improve the overall fatigue resistance of the skeleton.

[0060] By stitching multiple cylindrical installation bags into a spring bag group, this design achieves a balance between independent restraint and overall coordination: it not only retains the independent movement characteristics of the springs to adapt to the human body curve, but also provides stable support through the matrix structure formed by stitching. Combined with the subsequent hot melt adhesive bonding process, a spring skeleton with high resilience, fatigue resistance and compressibility is finally constructed, meeting the comprehensive requirements of the sofa for comfort, durability and transportation convenience.

[0061] As Figure 22 shown, an anti-slip cloth 400 is provided on the lower end surface of the bottom sponge block 2. The bottom sponge block 2 is adhesively bonded to the anti-slip cloth, the side surround sponge block 3 is adhesively bonded to the bottom sponge block 2, adjacent side surround sponge blocks 3, and the side surround sponge block 3 is adhesively bonded to the top sponge block 4 with glue, or multiple pieces of magic tape 300 are arranged around the anti-slip cloth and adhered to the sponge seat, which is convenient for disassembly and assembly; in addition, a zipper 200 can also be provided on the anti-slip cloth to facilitate opening the bottom for spring maintenance and installation, and it can also be an effective fixing method such as stitching. In this technical solution, the setting of the anti-slip cloth not only significantly increases the static friction force to prevent the sofa from shifting, but also effectively prevents the springs from poking out through the bottom sponge when there is a damaged installation bag that is not discovered and repaired after long-term use. In addition, the glue layer of the anti-slip cloth fills the pores of the sponge to improve the connection strength. The size of the anti-slip cloth can be the same as the cross-sectional size of the accommodation cavity, so that elastic fabrics are provided at the four peripheral edges of the bottom anti-slip cloth, or the size of the anti-slip cloth is the same as the cross-sectional size of the sponge seat.

[0062] Furthermore, the elastic fabric is corduroy. In this technical solution, the exposed part of the sponge seat is covered, and preferably corduroy material is used, which has both elasticity and wear resistance.

[0063] As Figures 1 - 8The compressible seat shown includes a rectangular sponge seat 1, and also includes two compressible armrest sponge blocks and a backrest sponge block. The spring skeleton is adaptively installed in the accommodation cavity 5 of the sponge seat 1. The two armrest sponge blocks are adhesively bonded to both sides of the upper end of the top sponge block 4, and the backrest sponge block is adhesively bonded to the rear side of the upper end of the top sponge block 4. On the side of the backrest sponge block facing the top sponge block 4, a first arc surface protrudes outward. The inner end of the armrest sponge block is recessed inward to form a second arc surface adapted to the first arc surface. The first arc surface and the second arc surface are adhesively fixed. At least a part of the surface of the seat is exposed on the sponge seat 1, the armrest sponge blocks and the backrest sponge block, and an elastic fabric is provided. Among them, Figures 1 - 4 The seat shown is a single-seat, with a total of 238 springs arranged in 14 rows * 17 columns; Figures 5 - 6 The seat shown is a double-seat, with a total of 378 springs arranged in 14 rows * 27 columns; Figures 7 - 8 The seat shown is a triple-seat, with a total of 518 springs arranged in 14 rows * 37 columns.

[0064] As Figures 5 - 8 The compressible seat shown includes a plurality of rectangular sponge seats 1 that are joined together. Adjacent sponge seats 1 are connected by Velcro or zip ties. The seat also includes two compressible armrest sponge blocks and a backrest sponge block provided at the rear side of each sponge seat 1. A spring skeleton is provided in the accommodation cavity 5 of each sponge seat 1. The two armrest sponge blocks are adhesively bonded to the outer sides of the upper ends of the two side top sponge blocks 4, and each backrest sponge block is adhesively bonded to the rear side of the upper end of the corresponding top sponge block 4. Adjacent backrest sponge blocks are adhesively fixed to each other. On the side of the backrest sponge block facing the top sponge block 4, a first arc surface protrudes outward. The inner end of the armrest sponge block is recessed inward to form a second arc surface adapted to the first arc surface. The first arc surface and the second arc surface are adhesively fixed. At least a part of the surface of the seat is exposed on the sponge seat 1, the armrest sponge blocks and the backrest sponge block, and an elastic fabric is provided. In the above solution, a multi-seat can be formed by splicing single-seats. In this way, a longer seat can be compressed into multiple shorter seats for splicing and combination, which is more convenient for transportation and handling.

[0065] As Figures 9 - 14 The compressible seat shown includes a rectangular sponge seat 1 or a square sponge seat 1, and also includes a compressible armrest sponge block and a backrest sponge block; As Figures 9 - 12 shown, when the sponge seat 1 is a rectangular sponge seat 1, the spring skeleton is adaptively installed in the accommodation cavity 5 of the sponge seat 1. The backrest sponge block is configured as a long backrest sponge block and is adhesively bonded to the long side of the upper end of the top sponge block 4, and the armrest sponge block is adhesively bonded to the wide side of the upper end of the top sponge block 4. Or the backrest sponge block is configured as a short backrest sponge block and is adhesively bonded to the wide side of the upper end of the top sponge block 4, and the armrest sponge block is adhesively bonded to the long side of the upper end of the top sponge block 4 and forms a gap with this long side. Or as Figures 13 - 14As shown, when the sponge seat 1 is a square sponge seat 1, the backrest sponge block and the armrest sponge block are bonded to two adjacent sides at the upper end of the top sponge block 4.

[0066] As Figures 9 - 12 shown, when the sponge seat 1 is a rectangular sponge seat 1, one side of the backrest sponge block facing the top sponge block 4 bulges outward to form a first arc surface, and the inner end of the armrest sponge block is recessed inward to form a second arc surface adapted to the first arc surface, and the first arc surface and the second arc surface are bonded and fixed.

[0067] As Figures 13 - 14 shown, when the sponge seat 1 is a square sponge seat 1, the surface where the backrest sponge block and the armrest sponge block are in contact is inclined; at least a part of the surface of the seat exposed on the sponge seat 1, the armrest sponge block and the backrest sponge block is provided with an elastic fabric.

[0068] Among them, as Figures 9 - 10 shown, the single-arm double-seat has 322 springs in 14 rows * 23; as Figures 11 - 12 shown, the chaise longue seat has 350 springs in 14 rows * 25; as Figures 13 - 14 shown, the corner seat has 196 springs in 14 rows * 14.

[0069] As Figures 15 - 18 shown, the compressible seat includes a rectangular sponge seat 1, and also includes a compressible backrest sponge block. The spring skeleton is adaptively installed in the accommodation cavity 5 of the sponge seat 1, and the backrest sponge block is bonded to one side of the upper end of the top sponge block 4 in the width direction or the length direction; at least a part of the surface of the seat exposed on the sponge seat 1, the armrest sponge block and the backrest sponge block is provided with an elastic fabric. Among them, as Figures 15 - 16 shown, the armless double-seat has 266 springs in 14 rows * 19; as Figures 17 - 18 shown, the armless single-seat has 126 springs in 14 rows * 9.

[0070] As Figures 19 - 20 shown, the compressible seat includes a square sponge seat 1, the spring skeleton is adaptively installed in the accommodation cavity 5 of the sponge seat 1, and at least a part of the surface of the seat exposed on the sponge seat 1 is provided with an elastic fabric, and it has 140 springs in 14 rows * 10.

[0071] It should be noted here that the thickness ratio of the bottom sponge block to the top sponge block is 1 to 3. Specifically, the spring used has a height of 35 cm and a diameter of 6.5 cm.

[0072] In this specific embodiment, in view of the problems of the existing traditional sofas being bulky, taking up a large volume during transportation, having a small loading capacity in containers, high costs, and difficult assembly, as well as the problems of the existing compressible all-sponge sofas being prone to deformation and having insufficient support, the above solution sets a spring skeleton in the sponge seat. The spring skeleton includes multiple spring bag groups, and each spring bag group further includes a plurality of springs installed in independent installation bags and connected by stitching. This not only retains the independent movement characteristics of the springs to adapt to the human body curve but also provides stable support through the matrix structure formed by stitching. Combining the hot melt adhesive bonding process between the spring bag groups, a spring skeleton with high resilience, anti-fatigue property, and compressibility is finally constructed, meeting the comprehensive requirements of the sofa for comfort, durability, and transportation convenience.

[0073] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0074] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and purposes of the present invention.

Claims

1. A compressible seat with a spring skeleton, characterized in that: Including compressible: A square sponge seat (1), or multiple square sponge seats (1) joined together; the sponge seat (1) includes a bottom sponge block (2) and four side surround sponge blocks (3) erected on the upper peripheral edges of the bottom sponge block (2). The four side surround sponge blocks (3) are symmetrically distributed in pairs. A top sponge block (4) is provided covering the upper ends of the four side surround sponge blocks (3). The bottom sponge block (2), side surround sponge blocks (3) and top sponge block (4) enclose a square accommodation cavity (5). A spring framework, adaptively arranged in the accommodation cavity (5) for supporting the top sponge block (4). It includes multiple spring bag groups arranged in a matrix. The spring bag group includes a plurality of mounting bags (6) connected adjacent to each other in sequence and springs (7) respectively arranged in the mounting bags (6). The mounting bag (6) is cylindrical. The spring (7) is longitudinally arranged in the mounting bag (6). The upper and lower ends of the spring (7) abut against the inner walls of the upper and lower ends of the mounting bag (6). The circumferential side wall of the spring (7) abuts against the inner side wall of the mounting bag (6). A pore for adding fragrance is formed in the spring (7). An elastic fabric, at least the exposed part of the seat is covered with the elastic fabric. The compressible seat with a spring framework can be assembled into a complete set of modular sofas by permutation and combination, or can be used alone as a seat.

2. The compressible seat with a spring skeleton according to claim 1, characterized in that: The adjacent mounting bags (6) in the spring bag group are stitched and connected.

3. The compressible seat with a spring skeleton according to claim 2, characterized in that: The multiple spring bag groups include first spring bag groups on both sides and multiple second spring bag groups between them. A hot melt adhesive is pasted in the middle of one side of the mounting bag (6) in the first spring bag group relative to the second spring bag group. Hot melt adhesives are pasted in the middle of both sides of the mounting bag (6) in the second spring bag group. The multiple spring bag groups are bonded and fixed by hot melt adhesives to form a square integral body adapted to be placed in the square accommodation cavity (5).

4. The compressible seat with a spring skeleton according to claim 3, characterized in that: An anti-slip cloth is provided on the lower end surface of the bottom sponge block (2). The bottom sponge block (2) and the anti-slip cloth, the side surround sponge block (3) and the bottom sponge block (2), adjacent side surround sponge blocks (3), and the side surround sponge block (3) and the top sponge block (4) are bonded by glue.

5. The compressible seat with a spring skeleton according to claim 1, wherein: The elastic fabric is corduroy.

6. The compressible seat with a spring skeleton according to claim 4, characterized in that: The compressible seat includes a rectangular sponge seat (1), and also includes two compressible armrest sponge blocks (8) and a backrest sponge block (9). The spring framework is adaptively installed in the accommodation cavity (5) of the sponge seat (1). The two armrest sponge blocks (8) are bonded to both sides of the upper end of the top sponge block (4). The backrest sponge block (9) is bonded to the rear side of the upper end of the top sponge block (4). A first arc surface (10) protrudes outward on the surface of the backrest sponge block (9) facing the top sponge block (4). The inner end of the armrest sponge block (8) is recessed inward to form a second arc surface (11) adapted to the first arc surface (10). The first arc surface (10) and the second arc surface (11) are bonded and fixed. At least the exposed part of the surface of the sponge seat (1), armrest sponge blocks (8) and backrest sponge block (9) of the seat is provided with an elastic fabric.

7. The compressible seat with a spring skeleton according to claim 4, characterized in that: The compressible seat includes a plurality of rectangular sponge seats (1) that are joined together. Adjacent sponge seats (1) are connected by Velcro or cable ties. The seat also includes two compressible armrest sponge blocks (8) and a backrest sponge block (9) provided at the rear side of each sponge seat (1). A spring skeleton is provided in the accommodation cavity (5) of each sponge seat (1). The two armrest sponge blocks (8) are adhesively bonded to the outer sides of the upper ends of the two side top sponge blocks (4). Each backrest sponge block (9) is adhesively bonded to the rear side of the upper end of the corresponding top sponge block (4). Adjacent backrest sponge blocks are adhesively fixed. On the backrest sponge block (9), a first arc surface (10) protrudes outward on the side facing the top sponge block (4). The inner end of the armrest sponge block (8) is recessed inward to form a second arc surface (11) adapted to the first arc surface (10). The first arc surface (10) and the second arc surface (11) are adhesively fixed. At least a part of the surface of the seat is exposed on the sponge seat (1), the armrest sponge block (8), and the backrest sponge block (9), and an elastic fabric is provided.

8. The compressible seat with a spring skeleton according to claim 4, characterized in that: The compressible seat includes a rectangular sponge seat (1) or a square sponge seat (1), and also includes a compressible armrest sponge block (8) and a backrest sponge block (9). When the sponge seat (1) is a rectangular sponge seat (1), the spring skeleton is adaptively installed in the accommodation cavity (5) of the sponge seat (1). The backrest sponge block (9) is configured as a long backrest sponge block (9) and is adaptively adhesively bonded to the long side of the upper end of the top sponge block (4). The armrest sponge block (8) is adaptively adhesively bonded to the wide side of the upper end of the top sponge block (4), or the backrest sponge block (9) is configured as a short backrest sponge block (9) and is adaptively adhesively bonded to the wide side of the upper end of the top sponge block (4). The armrest sponge block (8) is adhesively bonded to the long side of the upper end of the top sponge block (4) and forms a gap with this long side. When the sponge seat (1) is a square sponge seat (1), the backrest sponge block (9) and the armrest sponge block (8) are adhesively bonded to two adjacent sides of the upper end of the top sponge block (4). When the sponge seat (1) is a rectangular sponge seat (1), a first arc surface (10) protrudes outward on the side of the backrest sponge block (9) facing the top sponge block (4). The inner end of the armrest sponge block (8) is recessed inward to form a second arc surface (11) adapted to the first arc surface (10). The first arc surface (10) and the second arc surface (11) are adhesively fixed. When the sponge seat (1) is a square sponge seat (1), the surface where the backrest sponge block (9) and the armrest sponge block (8) are in contact is inclined. At least a part of the surface of the seat is exposed on the sponge seat (1), the armrest sponge block (8), and the backrest sponge block (9), and an elastic fabric is provided.

9. The compressible seat with a spring skeleton according to claim 4, characterized in that: The compressible seat includes a rectangular sponge seat (1), and also includes a compressible backrest sponge block (9). The spring skeleton is adaptively installed in the accommodation cavity (5) of the sponge seat (1). The backrest sponge block (9) is adhesively bonded to the wide side or the long side of the upper end of the top sponge block (4). At least a part of the surface of the seat is exposed on the sponge seat (1), the armrest sponge block (8), and the backrest sponge block (9), and an elastic fabric is provided.

10. A compressible seat with a spring skeleton according to claim 4, characterized in that: The compressible seat includes a square sponge seat (1), and a spring skeleton is adaptively installed in the accommodation cavity (5) of the sponge seat (1). At least a part of the surface of the seat is exposed on the sponge seat (1) and is provided with an elastic fabric.

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