Iron frame type modularized seat

Abstract

The iron frame type modularized seat comprises a modularized seat cushion, W-shaped iron ribs are welded to the peripheral side of a seat frame of the modularized seat cushion, and binding strips are arranged on the inner wall of the peripheral side of a seat cushion outer sleeve and are detachably connected with the W-shaped iron ribs in a binding mode; the back frame is arranged at the upper end of the rear side of the seat frame, and a plurality of first connecting interfaces are correspondingly formed in the seat frame and the back frame; the armrest frames are attached to the two sides of the seat frame and the back frame, and a plurality of second connecting ports are formed in the seat frame and the armrest frames; the lower end of the armrest frame is lower than the lower end of the seat frame, so that the armrest frame can be supported on the ground, or the lower end of the armrest frame is flush with the lower end of the seat frame, a plurality of independent supporting legs are detachably arranged at the bottom of the seat frame, and a plurality of third connecting ports are correspondingly formed in the independent supporting legs and the seat frame. According to the scheme, the W-shaped iron ribs enhance the structural strength of the seat frame, and the cushion outer sleeve is convenient to detach, wash and replace; the seat cushion, the backrest and the armrests in the seat are detachably and modularly connected, so that the seat is convenient to disassemble and assemble, the loading quantity can be reduced, and the transportation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of seats, and in particular to an iron frame type modular seat. Background Art

[0002] Existing seats or sofas are made of wood, which are heavy and difficult to carry. In addition, due to their large size, the transportation cost after packing is high. The one-piece injection molding structure has limited structural strength, which affects the service life of the seat or sofa. In addition, if some parts of the seat are damaged, the integrated seat needs to be replaced as a whole, which is expensive.

[0003] Moreover, among the existing seats, a Chinese invention patent with publication number CN221903009U provides a sofa with a four-spring structure, including a sofa body, a sofa armrest including a solid wood support plate, two layers of super soft sponge are arranged on the solid wood support plate, and multiple mini pocket springs are arranged between the two layers of super soft sponge; the sofa back includes a sofa cushion and a sofa back frame body, multiple independent pocket springs A are arranged in the sofa cushion, and a bandage is arranged on the sofa back frame body; multiple independent pocket springs B and sponge are arranged in the sofa cushion, and a positioning line and multiple serpentine bow springs are arranged in the bottom frame of the sofa cushion, and the two ends of the serpentine bow spring are fixed to the bottom frame of the sofa cushion through bow spring buckles. The present invention sets springs of different structures for different parts of the same sofa according to the frequency of use and the pressure conditions, and different parts of the same sofa have different designs, which can not only reduce the production cost of the sofa, but also different parts are independent individuals, do not interfere with each other, have strong support force, and are durable.

[0004] In the above solution, the sofa adopts a wooden frame and laminates to achieve a frame structure, which is not only not environmentally friendly, but also contains glue components in the laminates, and the formaldehyde components cannot be removed.

[0005] In addition, in order to improve the comfort of existing seats, some elastic components are installed on the frames of seats (sofas, leisure sofas, office chairs and car seats, etc.) to play the role of rebound and shock absorption. The hook connected to one end of the spring group is directly hung on the cross tube, and the gusset plate connected to the other end of the spring group is connected to the cross tube through a nail gun. During use, these two connection methods make the hook or gusset plate without a fixed part easily shake and rub against the cross tube to produce abnormal noise, which makes people feel uncomfortable. In addition, these two connection methods are unstable and easy to fall off during use.

[0006] In addition, the fabric cover in the existing seat is fixed in a locked manner, which makes it very troublesome to remove and replace.

[0007] In addition, in addition to the single seat, side tables are usually provided for users to place items. The provision of side tables takes up space and increases the configuration cost. Summary of the invention

[0008] In order to solve the above problems, the purpose of the present invention is to provide an iron frame modular seat, in which the seat cushion, backrest and armrests are detachably connected in a modular manner, which is convenient for disassembly and assembly, can reduce the amount of cabinets, is conducive to transportation, and reduces transportation costs; the seat cushion, backrest and armrests in the seat have a variety of styles to choose from, which can be easily assembled and maintained according to user needs; and the frame made of iron pipes replaces wooden seats, which is relatively light and more environmentally friendly, and a storage space can be formed in the seat frame for placing components such as backrests and armrests, further improving the storage efficiency. In addition, the plastic clip can embrace the iron pipe and tightly clamp it on the plastic clip, effectively reducing the friction between the plastic clip and the beam caused by shaking, and reducing the occurrence of abnormal noise. At the same time, the two sides of the circular snake spring are connected to the hollow elliptical hole, and multiple circular snake springs are connected with a plastic-coated iron wire frame, which can improve the elastic effect of the cushion and make the seat more comfortable. The fabric cover can be detachably connected to each component, which is easy to disassemble and wash. In addition, the armrest is hinged with a table board, so that the armrest of the seat can replace the side table, reducing the configuration cost of other tables.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: A modular iron frame seat, comprising a modular seat cushion, and a modular armrest and a modular backrest detachably and replaceably arranged on the modular seat cushion, wherein the seat frame of the modular seat cushion and the back frame of the modular backrest are made of iron pipes, the modular armrest is one of an iron frame armrest, a solid wood armrest and a soft-pack armrest, and the modular armrest comprises two armrest frames; when the modular armrest is an iron frame armrest or a soft-pack armrest, the armrest frame is made of iron pipes, and a foldable table board is installed on at least one side of the armrest frame; when the modular armrest is a solid wood armrest, rattan is installed on the armrest frame; the seat frame, back frame and table board of the modular seat are covered with indoor sponges, and when the modular armrest is an iron frame armrest or a soft-pack armrest, the armrest frame is covered with indoor sponges, and the indoor sponges can be detachably replaced with external drainage sponges; the characteristics are: The seat frame is welded with a W-shaped iron reinforcement bar on the circumference thereof, a seat cushion cover is provided on the outer side of the seat frame, and a tie strip is provided on the circumference inner wall of the seat cushion cover and is detachably connected to the W-shaped iron reinforcement bar by bundling; the back frame is arranged at the upper end of the rear side of the seat frame, and the seat frame and the back frame are correspondingly provided with a plurality of first connection interfaces; the armrest frame is attached to both sides of the seat frame and the back frame, and the seat frame and the armrest frame should be provided with a plurality of second connection interfaces; the lower end of the armrest frame is lower than the lower end of the seat frame, so that the armrest frame can be supported on the ground, or the lower end of the armrest frame is flush with the lower end of the seat frame, and the bottom of the seat frame is detachably provided with a plurality of independent supporting feet, and a plurality of third connection interfaces are correspondingly provided on the independent supporting feet and the seat frame.

[0010] Preferably, the seat frame is a rectangular iron frame with a storage space formed inside the frame; the frame includes two symmetrically arranged side support iron frames, and two upper support iron pipes and two lower support iron pipes welded between the two side support iron frames, and a mounting platform is welded on the upper support iron pipe and the side support iron frame at the rear side of the upper end of the seat frame; inclined iron pipes are welded on both sides of the side support iron frame, and the inclined iron pipes and the side support iron frame are provided with the third connecting interface for connecting independent support legs; the first connecting interface, the second connecting interface and the third connecting interface on both sides of the seat frame are symmetrically arranged, and a variety of armrests and backrests can be installed replaceably; a connecting iron pipe is welded on the inner side of the upper part of the seat frame between the two side support iron frames, and the connecting iron pipe is arranged at the same level as the upper support iron pipe; a plurality of fixing holes for installing plastic clips are symmetrically provided on the upper and lower surfaces of the connecting iron pipe and the upper support iron pipe.

[0011] Preferably, the upper and lower surfaces of the inner wall of the plastic snap buckle are provided with protrusions, which extend into the fixing hole so that the plastic snap buckle is clamped and fixed on the iron pipe; two elliptical blocks are provided on the side end of the plastic snap buckle, and the two elliptical blocks are adapted to be provided with female tenons and male tenons radially locked with them. After the two elliptical blocks are clamped, a hollow elliptical hole is formed, and circular snake springs are hung on the hollow elliptical holes on both sides for connecting the plastic snap buckles on both sides; the plastic snap buckle is locked on the seat frame by the cooperation of the protrusion and the fixing hole, which is suitable for avoiding sound caused by friction between the plastic snap buckle and the seat frame when the circular snake spring moves up and down repeatedly; a U-shaped connecting block is provided on the top of the plastic snap buckle, which is used for detachable snap-on fixation with the seat cushion cover.

[0012] Preferably, a plastic-coated wire frame is provided on the lower end surface of the plurality of circular snake springs, which is used to connect the plurality of circular snake springs so that they are uniformly stressed as a whole and have a high rebound effect.

[0013] Preferably, the plastic-coated wire frame includes PVC fixed frame bars and PVC fixed straight bars, and the PVC fixed frame bars and the PVC fixed straight bars are tied and fixed to the multiple circular snake springs by means of fixing sleeves.

[0014] Preferably, a connecting frame is fixedly provided on the upper part of the back frame, and a support column is hinged on the connecting frame. The support column is obliquely arranged between the back frame and the backrest cover; the inclination angle of the back frame is adjusted by an angle adjuster between the back frame and the seat frame, and when the modular backrest is tilted and laid flat, the support column can be flipped and supported on the ground under the action of external force.

[0015] Preferably, a plurality of the first connection interfaces are provided at the upper end of the mounting platform; the bottom of the back frame is mounted on the mounting platform and correspondingly provided with a plurality of the first connection interfaces, and the back frame is arranged at the upper end of the rear side of the seat frame; there are two angle adjusters, which are symmetrically arranged on both sides of the mounting platform, and the angle adjuster includes a main body fixed on the side end of the mounting platform, and a seat frame connecting plate and a back frame connecting plate arranged on both sides of the main body, the seat frame connecting plate is fixed on the side end of the mounting platform and locked with the main body, and the back frame connecting plate is fixedly connected to the side end of the back frame and can be rotated relative to the main body to adjust the inclination angle of the back frame.

[0016] Preferably, the modular armrest can be detachably replaced with one of an iron frame armrest, a solid wood armrest and a soft-padded armrest through a second connection interface on the seat frame; the iron frame armrest includes an iron frame floor-standing armrest and an iron semi-ground-standing armrest, the lower ends of the iron frame floor-standing armrest and the soft-padded armrest are lower than the lower end of the iron frame seat frame, so that the iron frame armrest frame can be supported on the ground; the lower ends of the iron semi-ground-standing armrest and the solid wood armrest are flush with the lower end of the iron frame seat frame, and the lower end of the iron frame seat frame is supported on the ground by a plurality of independent legs; When the modular armrest is an iron frame armrest or a soft-pack armrest, two vertical beams are longitudinally welded in the armrest frame, and the two vertical beams are hinged to the table top through hinges respectively, and the hinge includes a short connecting section and a long connecting section that are hinged to each other, wherein one connecting section is fixedly connected to the vertical beam, and the other connecting section is fixedly connected to the table top; U-shaped connecting grooves are constructed on the short connecting section and the long connecting section, and their connecting grooves are arranged oppositely and the short connecting section adapter frame is arranged on the upper outer side of the long connecting section, and the two are relatively rotatably connected through a first connecting pin; Limiting holes are longitudinally provided on both sides of the long connecting section, a second connecting pin is passed through the lower part of the short connecting section, and a third connecting pin is passed through the limiting holes on both sides, and both ends of the second connecting pin and the two ends of the third connecting pin are respectively connected with limiting plates; when the short connecting section and the long connecting section rotate relative to each other, the limiting plates are driven to move, thereby pulling the third connecting pin to move longitudinally on the limiting hole; a locking piece is provided in the connecting groove of the long connecting section, and the locking piece is configured to lock the third connecting pin on the limiting hole when the short connecting section and the long connecting section are at a right angle.

[0017] Preferably, the locking member comprises a U-shaped locking block, a fourth connecting pin and a torsion spring, the fourth connecting pin is passed through the long connecting section and the U-shaped locking block and is located outside the limiting hole, the torsion spring is sleeved on the fourth connecting pin, the U-shaped locking block is located outside the torsion spring, and the torsion arms on both sides of the torsion spring abut against the upper and lower sides of the inner wall of the U-shaped locking block; when the table top is flipped to a horizontal state, the third connecting pin moves to the upper part of the limiting hole, and the upper end of the U-shaped locking block can be supported on the lower end of the third connecting pin, so that the third connecting pin and the limiting plate are in a locked state; The outer ends of the long connecting section are provided with accommodating openings that cooperate with the second connecting pin; when the short connecting section is fixed on the vertical beam, an arc-shaped buffer groove is provided on the vertical beam, and the table top is flipped to a vertical state, and the U-shaped locking block corresponds to the arc-shaped buffer groove.

[0018] Preferably, the independent support leg comprises a support leg body and a connecting column formed on the upper end of the support leg body, and the connecting column is provided with the plurality of third connecting interfaces; Alternatively, the independent support leg includes a connecting piece and a support leg body welded below the connecting piece; the third connection interface on the seat frame is arranged at the bottom of the seat frame, and the connecting piece is provided with the plurality of third connection interfaces connected and fixed to the bottom of the seat frame; The cushion cover on the outside of the seat frame can be detachably tied to the W-shaped iron reinforcement bar, the backrest cover is detachably and replaceably arranged on the back frame with a zipper set, and the armrest cover and table board cover are detachably and replaceably arranged on the armrest frame and the table board respectively with a zipper set.

[0019] The present invention adopts the above technical solution and has the following beneficial effects: ① The seat cushion, backrest and armrest in the seat can be detachably connected in a modular manner, which is convenient for disassembly and assembly, can reduce the amount of cabinets, facilitate transportation, and reduce transportation costs; ②, the seat cushions, backrests and armrests in the seats are available in a variety of styles, which can be easily assembled and maintained according to user needs; ③, The frame made of iron pipes replaces wooden seats. It is relatively light and more environmentally friendly. In addition, storage space can be formed inside the seat frame to place components such as backrests and armrests, thereby improving the storage effect; ④, The plastic buckle can wrap around the iron pipe and tightly clamp it on the plastic buckle, effectively reducing the friction caused by shaking between the plastic buckle and the beam, and reducing the occurrence of abnormal noise; ⑤, The two sides of the circular snake spring are connected to the hollow elliptical hole, and the up and down rebound effect is good; multiple circular snake springs are connected with a plastic-coated wire frame, so that the circular snake spring is evenly stressed as a whole, thereby playing the role of overall high rebound, making users sit more comfortable; ⑥ The table top can be hinged on the armrest, so that the armrest of the seat can replace the side table, reducing the configuration cost of other tableware; ⑦, the fabric cover can be detachably connected to each component, which is convenient for disassembly and assembly and easy for washing. Among them, the seat cushion cover cannot adopt a set zipper-type cover, so it is tied to the iron seat frame through a W-shaped iron reinforcement bar, which is also very convenient.

[0020] ⑧. The backrest can be tilted and laid flat, which can be used for users to lie down and sleep, and a support column is set on the back side of the iron back frame, which can be used to support the backrest after the backrest is folded down, which is very safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the three-dimensional structure of the first type of iron frame modular seat.

[0022] Figure 2 This is a schematic diagram of the exploded structure of the iron frame modular seating.

[0023] Figure 3 for Figure 1 Schematic diagram of the reclining backrest of the medium iron frame modular seat.

[0024] Figure 4 This is a schematic diagram of the second type of iron frame modular seat with its backrest lying down.

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the third type of iron frame modular seating.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the seat frame.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the angle adjuster.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of a plastic snap back.

[0029] Fig. 9 This is a schematic diagram of the three-dimensional structure of the plastic snap buckle from another perspective.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the plastic-coated wire frame.

[0031] Fig.11 This is a schematic diagram of the bundling of the plastic-coated wire frame and the round snake spring.

[0032] Fig.12 This is a schematic diagram of the three-dimensional structure of the iron frame floor handrail.

[0033] Fig.13 Schematic diagram of the table top opening on the iron frame floor-standing armrest.

[0034] Fig.14 This is a schematic diagram of the three-dimensional structure of the iron semi-ground-standing handrail.

[0035] Fig.15 Schematic diagram of the iron semi-floor-standing armrest with the table top opened.

[0036] Fig.16 Schematic diagram of the three-dimensional structure of the hinge.

[0037] Fig.17 A schematic diagram of the side structure of the hinge.

[0038] Fig.18 Schematic diagram of the hinge opening.

[0039] Fig.19 This is a schematic diagram of the three-dimensional structure of the first type of independent support leg.

[0040] Fig. 20 This is a schematic diagram of the three-dimensional structure of the second type of independent support leg.

[0041] Fig.21 Diagram for setting up pockets on the table top. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] like Figures 1 to 21 The iron frame modular seat shown in the figure comprises a modular seat cushion, and a modular armrest and a modular backrest which are detachably replaced on the modular seat cushion, wherein the seat frame 1 of the modular seat cushion and the back frame 2 of the modular backrest are made of iron pipes, the modular armrest is one of an iron frame armrest, a solid wood armrest and a soft-pack armrest, and the modular armrest comprises two armrest frames 3; when the modular armrest is an iron frame armrest or a soft-pack armrest, the armrest frame 3 is made of iron pipes, and a foldable table board 4 is installed on the armrest frame 3 on at least one side; when the modular armrest is a solid wood armrest, a rattan 5 is installed on the armrest frame 3; the seat frame 1, the back frame 2 and the table board 4 of the modular seat are covered with indoor sponges, and when the modular armrest is an iron frame armrest or a soft-pack armrest, the armrest frame 3 is covered with indoor sponges, and the indoor sponges can be removed and replaced with external drainage sponges; The modular seat cushion is fixed with detachable and interchangeable modular armrests and detachable and interchangeable modular backrests that can be tilted and laid flat, or detachable and interchangeable supporting seat frames or detachable and interchangeable independent legs. The modular armrests include all common modes such as iron frame armrests, solid wood armrests, and soft-packed armrests. A foldable bracket and a table board are installed on either side of the modular armrests. The fabric covers of various parts of the modular seat can be detached and interchanged. The indoor sponges installed on the seat frame, backrest, armrests, table boards and other parts of the modular seat can be detached and interchanged with external drainage sponges and rattan. A W-shaped iron reinforcement bar 6 is welded on the circumferential side of the seat frame 1, a seat cushion cover is provided on the outer side of the seat frame 1, and a tie strip is provided on the circumferential inner wall of the seat cushion cover, which is detachably connected to the W-shaped iron reinforcement bar 6; the back frame 2 is mounted on the upper end of the rear side of the seat frame 1, and a plurality of first connection interfaces 7 are correspondingly provided on the seat frame 1 and the back frame 2; the armrest frame 3 is attached to both sides of the seat frame 1 and the back frame 2, and a plurality of second connection interfaces 8 should be provided on the seat frame 1 and the armrest frame 3; the lower end of the armrest frame 3 is lower than the lower end of the seat frame 1, so that the armrest frame 3 can be supported on the ground, or the lower end of the armrest frame 3 is flush with the lower end of the seat frame 1, and the bottom of the seat frame 1 is detachably provided with a plurality of independent supporting feet 9, and a plurality of third connection interfaces 10 are correspondingly provided on the independent supporting feet 9 and the seat frame 1.

[0048] In the above technical solution, the W-shaped iron bars not only strengthen the structural strength of the seat frame, but also form a detachable connection with the seat cover, which is convenient for disassembly, washing and replacement; the seat cushion, backrest and armrest in the seat can be detachably connected in a modular manner, which is convenient for disassembly and assembly, can reduce the amount of cabinets, facilitate transportation, and reduce transportation costs; the seat cushion, backrest and armrest in the seat have a variety of styles to choose from, which can be easily assembled and maintained according to user needs. The frame made of iron pipes replaces wooden seats, is relatively light in weight, more environmentally friendly, and a storage space can be formed in the seat frame for placing components such as backrests and armrests, thereby improving the storage effect.

[0049] like Figure 2 , 6 As shown in Figure 11, the seat frame 1 is a rectangular iron frame, and a storage space 100 is formed in the frame; the frame includes two symmetrically arranged side support iron frames 11, and two upper support iron pipes 12 and two lower support iron pipes 13 welded between the two side support iron frames 11. A mounting platform 14 is welded on the upper support iron pipe 12 and the side support iron frame 11 at the rear side of the upper end of the seat frame 1; oblique iron pipes 15 are welded on both sides of the side support iron frame 11, and the oblique iron pipes 15 and the side support iron frame 11 are provided with a connection The third connection interface 10 is connected to the independent support leg 9; the first connection interface 7, the second connection interface 8 and the third connection interface 10 on both sides of the seat frame 1 are symmetrically arranged, and various armrests and backrests can be installed interchangeably; a connecting iron pipe 16 is welded between the two side support iron frames 11 on the upper inner side of the seat frame 1, and the connecting iron pipe 16 is arranged at the same level as the upper support iron pipe 12; a plurality of fixing holes are symmetrically provided on the upper and lower surfaces of the connecting iron pipe 16 and the upper support iron pipe 12 for installing plastic clips 17.

[0050] The seat frame fixes all the above-mentioned interchangeable armrests and independent feet supporting the seat frame. The four corners of the seat frame are welded with oblique iron pipes and have connection interfaces with holes for installing independent supporting feet. The seat frame includes two symmetrically arranged side supporting iron frame armrests or can be replaced with independent supporting feet. The various armrests and backrests installed on both sides of the seat frame have unified assembly screw holes, and any styles of armrests and backrests can be interchanged. The four corners of the seat frame are welded with oblique iron pipes and have holes for installing independent supporting feet, which can be disassembled and interchanged with various styles of feet. In this solution, the oblique iron pipes not only improve the structural strength of the seat frame, but also facilitate the installation of the first type of independent supporting feet.

[0051] like Figures 8 to 11As shown, the upper and lower surfaces of the inner wall of the plastic snap buckle 17 are provided with protrusions 18, and the protrusions 18 extend into the fixing holes so that the plastic snap buckle 17 is clamped and fixed on the iron pipe; the side ends of the plastic snap buckle 17 are provided with two elliptical blocks 19, and the two elliptical blocks 19 are adapted to be provided with female tenons and male tenons radially locked therewith, and the two elliptical blocks 19 are clamped to form a hollow elliptical hole 20, and circular snake springs 21 are hung on the hollow elliptical holes 20 on both sides for connecting the plastic snap buckles 17 on both sides; the plastic snap buckle 17 is locked on the seat frame 1 by the cooperation of the protrusions 18 and the fixing holes, which is suitable for avoiding the sound caused by the friction between the plastic snap buckle 17 and the seat frame 1 when the circular snake spring 21 repeatedly moves up and down; the top of the plastic snap buckle 17 is provided with a U-shaped connecting block 22, which is used for detachable snap-on fixation with the seat cushion cover. A plastic-coated wire frame is provided on the lower end surface of the plurality of circular snake springs 21, which is used to connect the plurality of circular snake springs 21 so that they are uniformly stressed as a whole and play a high rebound role. The plastic-coated wire frame includes a PVC fixed frame strip 23 and a PVC fixed straight strip 24, such as Fig.11 The PVC fixed frame strip 23 and the PVC fixed straight strip 24 are tied and fixed with the multiple circular snake springs 21 by the fixing sleeve 200. In this scheme, the plastic snap buckle can wrap around the iron pipe and tightly clamp it on the plastic snap buckle, effectively reducing the friction caused by shaking between the plastic snap buckle and the crossbeam, and reducing the occurrence of abnormal noise; the two sides of the circular snake spring are connected to the hollow elliptical hole, and the up and down rebound effect is good; multiple circular snake springs are connected by a plastic-wrapped iron wire frame, so that the circular snake spring is evenly stressed as a whole, thereby playing the role of overall high rebound, making users sit more comfortable.

[0052] The seat frame adopts plastic back-shaped buckles to connect the iron seat frame and fix it with the hollow elliptical circular snake spring on the side. The iron circular snake spring fixing hole cooperates with the protrusion of the circular snake spring, so that no friction and sound will be generated when the human body sits up and down repeatedly. The seat frame and the circular snake spring are grafted with plastic back-shaped buckles at both ends to achieve a more comfortable sitting feeling. The top U-shaped plastic back-shaped multifunctional buckle is fixed by the seat cushion jacket in a clip-on manner, and the jacket can be removed. The elastic component includes multiple circular snake springs. There are two plastic-coated iron wire frames on the upper and lower parts of the circular snake spring to fix it, so that the circular snake spring on the seat frame can be evenly borne as a whole, achieving a high rebound effect and never deforming.

[0053] like Figure 3 , 4As shown in Figures 7 and 8, a connecting frame 50 is fixedly provided on the upper part of the back frame 2, and a support column 51 is hingedly provided on the connecting frame 50. The support column 51 is obliquely arranged between the back frame 2 and the backrest cover; the inclination angle of the back frame 2 is adjusted by an angle adjuster 25 between the back frame 2 and the seat frame 1. When the modular backrest is tilted and laid flat, the support column 51 can be flipped and supported on the ground under the action of external force. A plurality of the first connection interfaces 7 are provided at the upper end of the mounting platform 14; the bottom of the back frame 2 is mounted on the mounting platform 14 and correspondingly provided with a plurality of the first connection interfaces 7, and the back frame 2 is arranged at the upper end of the rear side of the seat frame 1; there are two angle adjusters 25, which are symmetrically arranged on both sides of the mounting platform 14, and the angle adjuster 25 includes a main body 26 fixed on the side end of the mounting platform 14, and a seat frame connecting plate 27 and a back frame connecting plate 28 arranged on both sides of the main body 26, the seat frame connecting plate 27 is fixed on the side end of the mounting platform 14 and is locked with the main body 26, and the back frame connecting plate 28 is fixedly connected to the side end of the back frame 2 and can be rotated relative to the main body 26 to adjust the inclination angle of the back frame 2.

[0054] In the above technical solution, the modular backrest can be adjusted to tilt and lay flat, the backrest can be fixed and the backrest can be adjusted to various tilt angles through a recliner, a connecting iron pipe is welded between the two side support iron frames on the upper inner side of the seat frame, the connecting iron pipe is arranged at the same level as the upper support iron pipe, the front and rear ends of the connecting iron pipe correspond to multiple fixing holes and the upper support iron pipe away from the connecting iron pipe, the backrest can be fixed and the backrest can be adjusted to various tilt angles and laid flat through a recliner, and various styles of backrests can be disassembled and interchanged. When the backrest is laid flat, it can be used for lying down and sleeping, and the user opens the zipper on the backrest cover to turn the support column out and stand it upright on the ground, which supports the modular backrest and ensures the safety of lying down and sleeping on the seat.

[0055] like Figures 12 to 18 as well as Figure 1 As shown, the modular armrest can be disassembled and replaced into one of an iron frame armrest, a solid wood armrest and a soft-padded armrest through the second connection interface 8 on the seat frame 1; the iron frame armrest includes an iron frame floor armrest and an iron semi-ground-covered armrest, and the lower ends of the iron frame floor armrest and the soft-padded armrest are lower than the lower end of the iron frame seat frame 1, so that the iron frame armrest frame 3 can be supported on the ground; the lower ends of the iron semi-ground-covered armrest and the solid wood armrest are flush with the lower end of the iron frame seat frame 1, and the lower end of the iron frame seat frame 1 is supported on the ground by a plurality of independent legs 9; When the modular armrest is an iron frame armrest or a soft-pack armrest, two vertical beams 29 are longitudinally welded in the armrest frame 3, and the two vertical beams 29 are respectively hinged to the table board 4 through hinges 30, and the hinge 30 includes a short connecting section and a long connecting section that are hinged to each other, wherein one connecting section is fixedly connected to the vertical beam 29, and the other connecting section is fixedly connected to the table board 4; U-shaped connecting grooves are constructed on the short connecting section and the long connecting section, and their connecting grooves are arranged oppositely and the short connecting section adapter frame is arranged on the outer side of the upper part of the long connecting section, and the two are relatively rotatably connected through a first connecting pin 31; Limiting holes 32 are longitudinally provided on both sides of the long connecting section, a second connecting pin 33 is passed through the lower part of the short connecting section, and a third connecting pin 34 is passed through the limiting holes 32 on both sides, and both ends of the second connecting pin 33 and the third connecting pin 34 are respectively connected with limiting plates 35; when the short connecting section and the long connecting section rotate relative to each other, the limiting plates 35 are driven to move, thereby pulling the third connecting pin 34 to move longitudinally on the limiting hole 32; a locking member is provided in the connecting groove of the long connecting section, and the locking member is configured to lock the third connecting pin 34 on the limiting hole 32 when the short connecting section and the long connecting section are at a right angle.

[0056] The locking member includes a U-shaped locking block 36, a fourth connecting pin 37 and a torsion spring. The fourth connecting pin 37 is inserted through the long connecting section and the U-shaped locking block 36 and is located outside the limiting hole 32. The torsion spring is sleeved on the fourth connecting pin 37. The U-shaped locking block 36 is located outside the torsion spring. The torsion arms on both sides of the torsion spring abut against the upper and lower sides of the inner wall of the U-shaped locking block 36. When the table top 4 is flipped to a horizontal state, the third connecting pin 34 moves to the upper part of the limiting hole 32, and the upper end of the U-shaped locking block 36 can be supported on the lower end of the third connecting pin 34, so that the third connecting pin 34 and the limiting sheet 35 are in a locked state. The outer ends of the long connecting section are provided with accommodating openings 38 that cooperate with the second connecting pin 33; when the short connecting section is fixed on the vertical beam 29, an arc-shaped buffer groove 39 is provided on the vertical beam 29, and the table top 4 is flipped to a vertical state, and the U-shaped locking block 36 corresponds to the arc-shaped buffer groove 39.

[0057] In the above technical solution, when the short connecting section and the long connecting section are relatively unfolded, the linkage limit plate drives the third connecting pin to move in the limit hole. When the third connecting pin moves to a certain distance in the limit hole, the third connecting pin can be locked by the locking member, so that the table top is kept in a horizontal state, so that objects can be placed or used for office work. The locking member includes a U-shaped locking block 14, a fourth connecting pin 15 and a torsion spring. When the third connecting pin moves upward, the upper part of the U-shaped locking block is squeezed and moved to the upper end of the limit hole, and the U-shaped locking block is reset to support the lower end of the third connecting pin under the action of the torsion spring, so that the third connecting pin can maintain the upper end of the limit hole, and then the limit plate and the second connecting pin are in a locked state, and the table top is stable in a horizontal state. Multiple hinge designs can improve the load-bearing capacity of the table top; in this case, the two hinge designs make the table top load-bearing about 50KG, with high load-bearing capacity, which can meet daily use. To unlock, just press the outside of the U-shaped locking block, the inner end of the U-shaped locking block will rise, the third connecting pin will fall, and the table top will reset. If the short connecting section is fixed on the vertical beam, the third connecting pin will move laterally in the limiting hole. If the long connecting section is fixed on the vertical beam, the third connecting pin will move longitudinally in the limiting hole. The setting of the accommodating opening allows the second connecting pin to be accommodated in the accommodating opening of the long connecting section when the long connecting section and the short connecting section are closed, so that the table top is closer to the armrest in the initial vertical state, which is more beautiful. In addition, the setting of the arc-shaped buffer groove reduces the abnormal noise caused by the collision between the U-shaped locking block and the vertical beam when the table top is flipped to the vertical state, thereby better protecting the U-shaped locking block.

[0058] like Figures 19 and 20 As shown, the independent support leg 9 includes a support leg body 40 and a connecting column 41 formed on the upper end of the support leg body 40, and the connecting column 41 is provided with the plurality of third connection interfaces 10; or the independent support leg 9 includes a connecting piece 42 and a support leg body 40 welded to the bottom of the connecting piece 42; the third connection interface 10 on the seat frame 1 is arranged at the bottom of the seat frame 1, and the connecting piece 42 is provided with the plurality of third connection interfaces 10 and is connected and fixed to the bottom of the seat frame 1. In this solution, the independent support leg can be detachably connected, which is convenient for disassembly and assembly, and is convenient for storage and transportation. It should be noted here that Figure 1 and Figure 2 As shown in the comparison, Figure 2 The middle one indicates that the seat frame can be installed with the first type of independent feet. Figure 1 Whether it is installed depends on the support effect required by the user.

[0059] The cushion cover on the outside of the seat frame 1 is detachably tied to the W-shaped iron reinforcement bar 6, the backrest cover is detachably and replaceably arranged on the back frame 2 with a zipper set, and the armrest cover and the table board 4 cover are detachably and replaceably arranged on the armrest frame 3 and the table board 4 with a zipper set respectively.

[0060] Fig.21 In the embodiment, a plurality of pockets 300 may be provided on the outer surface of the table top.

[0061] The combination of the armrest frame, seat frame, back frame and legs illustrated in this embodiment does not represent all the combinations of the iron frame modular seat, and there are many other combinations.

[0062] like Figure 2 As shown, the first connection interface on the back frame is correspondingly connected to a row of first connection interfaces on the seat frame, and other first connection interfaces on the seat frame are prepared for connecting other types of backrests, which has a wide range of applications.

[0063] In this specific embodiment, in view of the problems existing in the existing seats, the above scheme connects the seat cushion, backrest and armrest in the seat in a detachable modular manner, which is easy to disassemble and assemble, can reduce the amount of cabinets, is conducive to transportation, and reduces transportation costs; and the seat cushion, backrest and armrest in the seat have a variety of styles to choose from, which can be easily assembled and maintained according to user needs; the frame made of iron pipes replaces wooden seats, which is relatively light and more environmentally friendly, and a storage space can be formed in the seat frame for placing components such as backrests and armrests, thereby improving the storage effect; the plastic snap buckle can be used to lock the iron pipe ring Hold and tightly clamp it on the plastic clip, effectively reducing the friction caused by shaking between the plastic clip and the beam, and reducing the occurrence of abnormal noise; the two sides of the circular spring are connected to the hollow elliptical hole, and the up and down rebound effect is good; multiple circular springs are connected with a plastic-coated wire frame, so that the circular spring is evenly stressed as a whole, thereby playing the role of overall high rebound, making users more comfortable to sit; the armrest can be hinged to the table board, so that the armrest of the seat can replace the side table, reducing the configuration cost of other tables; the fabric cover can be detachably connected to each component, which is easy to disassemble and wash.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A steel frame modular seat, comprising a modular seat cushion, and modular armrests and a modular backrest that are detachably and replaceably arranged on the modular seat cushion, wherein: The seat frame (1) of the modular seat cushion and the back frame (2) of the modular backrest are made of iron pipes, the modular armrest is one of an iron frame armrest, a solid wood armrest and a soft-padded armrest, and the modular armrest includes two armrest frames (3); when the modular armrest is an iron frame armrest or a soft-padded armrest, the armrest frame (3) is made of iron pipes, and a foldable table board (4) is installed on at least one side of the armrest frame (3); when the modular armrest is a solid wood armrest, a rattan (5) is installed on the armrest frame (3); the seat frame (1), the back frame (2) and the table board (4) of the modular seat are covered with indoor sponges, and when the modular armrest is an iron frame armrest or a soft-padded armrest, the armrest frame (3) is covered with indoor sponges, and the indoor sponges can be removed and replaced with external drainage sponges; the characteristics are: The seat frame (1) is welded with a W-shaped iron reinforcement bar (6) on the circumference thereof, a seat cushion cover is provided on the outer side of the seat frame (1), and a tie bar is provided on the inner wall of the circumference of the seat cushion cover and is detachably connected to the W-shaped iron reinforcement bar (6) by binding; the back frame (2) is mounted on the upper end of the rear side of the seat frame (1), and the seat frame (1) and the back frame (2) are provided with a plurality of first connection interfaces (7) correspondingly; the armrest frame (3) is attached to both sides of the seat frame (1) and the back frame (2), and the seat frame (1) and the armrest frame (3) are provided with a plurality of second connection interfaces (8); the lower end of the armrest frame (3) is lower than the lower end of the seat frame (1), so that the armrest frame (3) can be supported on the ground, or the lower end of the armrest frame (3) is flush with the lower end of the seat frame (1), and the bottom of the seat frame (1) is detachably provided with a plurality of independent legs (9), and the independent legs (9) and the seat frame (1) are provided with a plurality of third connection interfaces (10) correspondingly.

2. The iron frame modular seat according to claim 1, characterized in that: The seat frame (1) is a rectangular iron frame, and a storage space (100) is formed in the frame; the frame comprises two symmetrically arranged side support iron frames (11), and two upper support iron pipes (12) and two lower support iron pipes (13) welded between the two side support iron frames (11); a mounting platform (14) is welded on the upper support iron pipes (12) and the side support iron frames (11) at the rear side of the upper end of the seat frame (1); inclined iron pipes (15) are welded on both sides of the side support iron frames (11), and the inclined iron pipes (15) and the side support iron frames (11) are provided with a connection for connecting the independent The third connection interface (10) of the standing leg (9); the first connection interface (7), the second connection interface (8) and the third connection interface (10) on both sides of the seat frame (1) are symmetrically arranged, and various armrests and backrests can be installed interchangeably; a connecting iron pipe (16) is welded between the two side support iron frames (11) on the inner side of the upper part of the seat frame (1), and the connecting iron pipe (16) and the upper support iron pipe (12) are arranged at the same level; and a plurality of fixing holes for installing plastic snaps (17) are symmetrically arranged on the upper and lower surfaces of the connecting iron pipe (16) and the upper support iron pipe (12).

3. The iron frame modular seat according to claim 2, characterized in that: The upper and lower surfaces of the inner wall of the plastic snap buckle (17) are provided with protrusions (18), which extend into the fixing hole so that the plastic snap buckle (17) is clamped and fixed on the iron pipe; the side end of the plastic snap buckle (17) is provided with two elliptical blocks (19), and the two elliptical blocks (19) are adapted to be provided with a female tenon and a male tenon radially locked therewith, and the two elliptical blocks (19) are clamped to form a hollow elliptical hole (20), and circular snake springs (21) are hung on the hollow elliptical holes (20) on both sides for connecting the plastic snap buckles (17) on both sides; the plastic snap buckle (17) is locked on the seat frame (1) through the cooperation of the protrusion (18) and the fixing hole, and is suitable for preventing the plastic snap buckle (17) from making a sound due to friction with the seat frame (1) when the circular snake spring (21) repeatedly moves up and down; the top of the plastic snap buckle (17) is provided with a U-shaped connecting block (22) for detachably clamping and fixing it with the seat cushion cover.

4. The iron frame modular seat according to claim 3, characterized in that: A plastic-coated wire frame is provided on the lower end surface of the plurality of circular snake springs (21) for connecting the plurality of circular snake springs (21) so that they are uniformly stressed as a whole and play a high rebound role.

5. The steel frame modular seat according to claim 4, characterized in that: The plastic-coated wire frame comprises a PVC fixed frame strip (23) and a PVC fixed straight strip (24), and the PVC fixed frame strip (23) and the PVC fixed straight strip (24) are tied and fixed to the plurality of circular snake springs (21) via a fixing sleeve.

6. The steel frame modular seat according to claim 2, characterized in that: A connecting frame (50) is fixedly provided on the upper part of the back frame (2), and a support column (51) is hingedly provided on the connecting frame (50). The support column (51) is obliquely arranged between the back frame (2) and the backrest cover; the inclination angle of the back frame (2) is adjusted by an angle adjuster (25) between the back frame (2) and the seat frame (1), and when the modular backrest is tilted and laid flat, the support column (51) can be turned over and supported on the ground under the action of an external force.

7. The steel frame modular seat according to claim 6, characterized in that: The upper end of the mounting platform (14) is provided with a plurality of the first connection interfaces (7); the bottom of the back frame (2) is mounted on the mounting platform (14) and is correspondingly provided with a plurality of the first connection interfaces (7); the back frame (2) is arranged at the upper end of the rear side of the seat frame (1); there are two angle adjusters (25), which are symmetrically arranged on both sides of the mounting platform (14); the angle adjusters (25) include a main body (26) fixed to the side end of the mounting platform (14), and a seat frame connecting plate (27) and a back frame connecting plate (28) arranged on both sides of the main body (26); the seat frame connecting plate (27) is fixed to the side end of the mounting platform (14) and is locked with the main body (26); the back frame connecting plate (28) is fixedly connected to the side end of the back frame (2) and can rotate relative to the main body (26) to adjust the inclination angle of the back frame (2).

8. The steel frame modular seat according to claim 1, characterized in that: The modular armrest can be disassembled and replaced into one of an iron frame armrest, a solid wood armrest and a soft-padded armrest through a second connection interface (8) on the seat frame (1); the iron frame armrest includes an iron frame floor-standing armrest and an iron semi-non-floating armrest, the lower ends of the iron frame floor-standing armrest and the soft-padded armrest being lower than the lower end of the iron frame seat frame (1), so that the iron frame armrest frame (3) can be supported on the ground; the lower ends of the iron semi-non-floating armrest and the solid wood armrest are flush with the lower end of the iron frame seat frame (1), and the lower end of the iron frame seat frame (1) is supported on the ground by a plurality of independent legs (9); When the modular armrest is an iron frame armrest or a soft-pack armrest, two vertical beams (29) are longitudinally welded in the armrest frame (3), and the two vertical beams (29) are respectively hinged to the table top (4) through hinges (30), and the hinge (30) includes a short connecting section and a long connecting section that are hinged to each other, wherein one connecting section is fixedly connected to the vertical beam (29), and the other connecting section is fixedly connected to the table top (4); the short connecting section and the long connecting section are constructed with U-shaped connecting grooves, and their connecting grooves are arranged relative to each other and the short connecting section adapter frame is arranged on the upper outer side of the long connecting section, and the two are relatively rotatably connected via a first connecting pin (31); Limiting holes (32) are longitudinally provided on both sides of the long connecting section, a second connecting pin (33) is passed through the lower part of the short connecting section, and a third connecting pin (34) is passed through the limiting holes (32) on both sides, and limiting plates (35) are respectively connected to the two ends of the second connecting pin (33) and the two ends of the third connecting pin (34); when the short connecting section and the long connecting section rotate relative to each other, the limiting plates (35) are driven to move, thereby pulling the third connecting pin (34) to move longitudinally on the limiting hole (32); a locking member is provided in the connecting groove of the long connecting section, and the locking member is configured to lock the third connecting pin (34) on the limiting hole (32) when the short connecting section and the long connecting section are in a right angle state.

9. The steel frame modular seat according to claim 8, characterized in that: The locking member comprises a U-shaped locking block (36), a fourth connecting pin (37) and a torsion spring, wherein the fourth connecting pin (37) is inserted through the long connecting section and the U-shaped locking block (36) and is located outside the limiting hole (32), the torsion spring is sleeved on the fourth connecting pin (37), the U-shaped locking block (36) is located outside the torsion spring, and the torsion arms on both sides of the torsion spring abut against the upper and lower sides of the inner wall of the U-shaped locking block (36); when the table top (4) is flipped to a horizontal state, the third connecting pin (34) moves to the upper part of the limiting hole (32), and the upper end of the U-shaped locking block (36) can be supported on the lower end of the third connecting pin (34), so that the third connecting pin (34) and the limiting plate (35) are in a locked state; The outer ends of the long connecting section are provided with receiving openings (38) cooperating with the second connecting pin (33); when the short connecting section is fixed on the vertical beam (29), an arc-shaped buffer groove (39) is provided on the vertical beam (29); when the table top (4) is flipped to a vertical state, the U-shaped locking block (36) corresponds to the arc-shaped buffer groove (39).

10. The steel frame modular seat according to claim 8, characterized in that: The independent support leg (9) comprises a support leg body (40) and a connecting column (41) formed at the upper end of the support leg body (40), and the connecting column (41) is provided with the plurality of third connection interfaces (10); Alternatively, the independent support leg (9) comprises a connecting piece (42) and a support leg body (40) welded to the bottom of the connecting piece (42); the third connection interface (10) on the seat frame (1) is arranged at the bottom of the seat frame (1), and the connecting piece (42) is provided with a plurality of third connection interfaces (10) connected and fixed to the bottom of the seat frame (1); The seat cushion cover on the outside of the seat frame (1) is detachably tied to the W-shaped iron bar (6); the backrest cover is detachably and replaceably arranged on the back frame (2) by a zipper set; and the armrest cover and the table board (4) cover are detachably and replaceably arranged on the armrest frame (3) and the table board (4) by a zipper set.

Images