Modularized leisure chair
By using modular design and material replacement, the problems of high seat cost, difficult transportation, environmental non-environment and abnormal noise have been solved, and a lightweight, environmentally friendly, stable and comfortable seat solution has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-04-14
AI Technical Summary
Existing chairs have problems such as high motor costs, heavy and environmentally unfriendly wooden structures, high transportation costs, unstable connection methods and abnormal noises, and the need to configure side tables.
It adopts a modular design, uses a gas spring instead of a motor, and uses iron pipes to make the frame. The seat parts can be disassembled and modularly connected to increase storage space. Plastic snaps and circular serpentine springs are used to reduce noise, and the armrests can be folded into a table.
Reduce manufacturing costs, reduce transportation costs, improve the stability and comfort of the seats, reduce abnormal noises, and reduce the need for side table configurations.
Smart Images
Figure CN224112345U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seating technology, and in particular to a modular leisure seat. Background Technology
[0002] Existing chairs typically feature reclining backrests and folding legrests, allowing the seating to recline. To achieve these functions, a motor is usually installed within the seat frame. While motors offer high precision, their procurement costs are also high, thus increasing the overall manufacturing cost of the chair.
[0003] Furthermore, existing chairs or sofas made of wood are heavy, making them difficult to move, and their large size leads to high transportation costs after packaging. Meanwhile, the one-piece injection-molded structure has limited structural strength, affecting the lifespan of the chairs or sofas.
[0004] Furthermore, wooden structures are not only environmentally unfriendly, but the wood used in their production also contains glue, making it impossible to remove formaldehyde.
[0005] In addition, to improve comfort, existing seats often incorporate elastic components in their frames (sofas, lounge chairs, office chairs, and car seats, etc.) to provide rebound and shock absorption. Hooks connected to one end of the spring assembly hang directly on the cross tube, while a fastener connected to the other end of the spring assembly is attached to the cross tube via nails. During use, these two connection methods result in the hooks or fasteners lacking a fixed anchor point, making them prone to wobbling and rubbing against the cross tube, causing noise and discomfort. Furthermore, these connection methods are unstable and prone to detaching during use.
[0006] In addition to single seating, side tables are usually provided so that users can place items. The installation of side tables takes up space and increases the configuration cost. Summary of the Invention
[0007] To address the aforementioned issues, the purpose of this invention is to provide a modular leisure chair. The internal motor is replaced with a gas spring, and the installation method of the gas spring is adjusted to save manufacturing costs. The seat cushion, backrest, and armrests are detachable and modularly connected, facilitating assembly and disassembly, increasing storage capacity, improving transportation, and reducing transportation costs. The seat cushion, backrest, and armrests offer various styles to suit user needs for easy assembly and maintenance. Furthermore, the iron pipe frame replaces the wooden seat, making it lighter and more environmentally friendly. The frame also provides storage space for backrests and armrests, further enhancing storage efficiency.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A modular leisure chair includes a modular seat cushion, modular armrests and a modular backrest that are detachably and replaceably mounted on the modular seat cushion. Modular backrest lugs are detachably provided on both sides of the modular backrest. The seat frame of the modular seat cushion and the backrest frame of the modular backrest are made of iron pipe. The modular armrests are one of the following: iron frame armrests, solid wood armrests, and upholstered armrests. Each modular armrest includes two armrest frames. When the modular armrests are iron frame armrests or upholstered armrests, the armrest frames are made of iron pipe, and a foldable table is installed on at least one side of the armrest frame. When the modular armrests are solid wood armrests, rattan weaving or storage cabinets are installed on the armrest frames. The seat frame, backrest frame, and table of the modular leisure chair are covered with indoor foam. When the modular armrests are iron frame armrests or upholstered armrests, the armrest frames are covered with indoor foam, and the indoor foam can be detached and replaced with an external drainable foam. Its distinguishing feature is:
[0010] The modular seat cushion, backrest, armrest, and backrest ears are respectively provided with a seat frame, backrest frame, armrest frame, and backrest ear frame. The backrest frame and armrest frame are detachably mounted on the seat frame, and the backrest ear frames are detachably mounted on both sides of the backrest frame.
[0011] The seat frame includes two symmetrically arranged side iron frames, and two lower support iron pipes and two upper support iron pipes welded between the two side iron frames, which enclose a storage space; the armrest frame is detachably connected to the outer side of the side iron frames; connecting assemblies are installed on the inner side of the two side iron frames, and connecting iron pipes are provided between the two sets of connecting assemblies; a rear connecting iron plate is hinged to the rear side of the connecting assemblies, the rear connecting iron plate is hinged to the seat frame and one end of the rear connecting iron plate extends out of the seat frame and connects to the backrest frame; a front connecting iron plate is hinged to the front side of the connecting assemblies, and a leg is connected to the front connecting iron plate;
[0012] The lower part of the backrest frame is fixedly equipped with a mounting base, and a gas spring is provided in the storage space. The output end of the gas spring is connected to the connecting iron pipe, and the other end of the gas spring is connected to the mounting base. The gas spring can act on the connecting iron pipe to drive the connecting plate assembly to move, thereby causing the rear connecting iron plate to rotate so that the backrest frame can rotate a certain angle to tilt backward, and causing the front connecting iron plate to rotate so that the legs can rotate a certain angle to flip upward.
[0013] Preferably, the mounting base includes an L-shaped connecting plate detachably connected to the backrest frame, and a U-shaped iron pipe welded to the lower end of the L-shaped connecting plate. The U-shaped iron pipe is provided with a pair of rear docking iron plates, and the rear docking iron plates are provided with a first connecting hole. The connecting iron pipe is provided with a pair of front docking iron plates, and the front docking iron plates are provided with a second connecting hole. The two ends of the gas rod extend between the pair of rear docking iron plates and the pair of front docking iron plates, respectively. Pins are inserted into the first connecting hole and the second connecting hole to connect the gas rod to the front docking iron plates and the rear docking iron plates.
[0014] Preferably, the connecting assembly includes a first fixed iron plate, a second fixed iron plate, a first rotating iron plate, a second rotating iron plate, and a transmission iron plate. The first and second fixed iron plates are fixedly installed on the upper inner side of the side iron frame. The first rotating iron plate is hinged to the first fixed iron plate. Both ends of the second rotating iron plate are respectively hinged to the first rotating iron plate and the side iron frame. The connecting iron pipe is fixedly installed between the two first rotating iron plates. One end of the transmission iron plate is hinged to the first rotating iron plate, and the other end is hinged to the lower outer side of the rear connecting iron plate. The second fixed iron plate is hinged to the lower inner side of the rear connecting iron plate. The upper part of the rear connecting iron plate extends out of the seat frame and has a locking hole for connection with the backrest frame. The connecting assembly also includes a third rotating iron plate and a fourth rotating iron plate. Both ends of the third rotating iron plate are respectively hinged to the first fixed iron plate and the fourth rotating iron plate. The middle part of the third rotating iron plate is hinged to the second rotating iron plate. The other ends of the second and fourth rotating iron plates are hinged to the front connecting iron plate.
[0015] Preferably, the lower two sides of the backrest frame are fixedly provided with connectors, the connectors include a connecting shell and a U-shaped connecting piece set on the upper end of the connecting shell, an installation space is formed inside the connecting shell, a V-shaped spring plate is formed on the lower outer side of the U-shaped connecting piece, the upper part of the rear connecting iron plate extends into the installation space, and the inner end of the V-shaped spring plate extends into the card hole for snap-fit connection.
[0016] Preferably, the upper two sides of the backrest frame are fixedly provided with first inserts, the first inserts are trapezoidal in shape with the diameter gradually decreasing from top to bottom, and a first connecting groove with an open outer end is formed in the first insert; the inner end of the back ear frame is fixedly provided with a second insert that is inserted and cooperates with the first insert, the second insert is trapezoidal in shape that matches the first connecting groove, and a second connecting groove with an open outer end is formed in the second insert.
[0017] Preferably, the rear connecting iron plate includes an upper connecting plate and a lower connecting plate. The lower connecting plate is located below the rear upper supporting iron pipe, and the upper connecting plate is located outside the rear upper supporting iron pipe and forms a notch between the upper connecting plate and the lower connecting plate that abuts against the rear upper supporting iron pipe. The lower connecting plate forms a hinge connection with the transmission iron plate and the second fixed iron plate respectively.
[0018] Preferably, the side iron frame and the handrail frame are provided with multiple connection interfaces. When the modular handrail is an iron frame handrail or a soft-padded handrail, at least two vertical beams are welded inside the handrail frame. The vertical beams are hinged to the tabletop, so that the tabletop can be flipped relative to the vertical beams and kept in a horizontal state under the action of external force, or flipped relative to the vertical beams and restored to a vertical state.
[0019] Preferably, a connecting rib is fixedly provided below the upper tube of the side iron frame along the length of the side iron frame, and the seat cushion cover is installed on the connecting rib by a buckle. The connecting rib forms a protruding ridge and is welded and fixed to the lower end of the upper tube of the side iron frame.
[0020] Preferably, the upper supporting iron pipe has multiple symmetrical fixing holes on its upper and lower surfaces for installing plastic snap fasteners. The inner walls of the plastic snap fasteners have protrusions on their upper and lower surfaces, which extend into the fixing holes to secure the snap fasteners to the iron pipe. Two elliptical blocks are provided on the side ends of the plastic snap fasteners. Each elliptical block has a female tenon and a male tenon that are radially locked to it. After the two elliptical blocks are engaged, they form hollow elliptical holes. Circular serpentine springs are hung on the hollow elliptical holes on both sides to connect the plastic snap fasteners on both sides. The plastic snap fasteners are locked by the cooperation of the protrusions and fixing holes. It is tightly attached to the seat frame to prevent noise caused by friction between the plastic snap fastener and the seat frame when the circular serpentine springs move up and down repeatedly; the top of the plastic snap fastener has a U-shaped connecting block for detachable snap-fit fixation to the seat cover; the lower end face of multiple circular serpentine springs has a plastic-coated wire frame for connecting multiple circular serpentine springs so that they are evenly stressed and have high resilience; the plastic-coated wire frame includes PVC fixing frame strips and PVC fixing straight strips, which are fixed to the multiple circular serpentine springs by fixing sleeves.
[0021] Preferably, the bottom of the side iron frame is provided with several rubber feet. Each rubber foot includes a main body and a connecting rod fixed to the upper end of the main body. The connecting rod is threaded to the side iron frame. The main body is frustum-shaped and its outer diameter gradually increases from top to bottom. The side wall of the main body has a curved transition, and the bottom of the main body has a deformation groove constructed on the inner side of the main body.
[0022] The present invention adopts the above technical solution and has the following beneficial effects:
[0023] ① The seat cushion, backrest, armrests and backrest lugs in the chair can be detached and connected, which is convenient for disassembly and assembly, can increase the container capacity, facilitate transportation, and reduce transportation costs;
[0024] ② Replace the motor inside the seat with a pneumatic rod. The output power of the pneumatic rod is relatively small compared to that of the motor. Therefore, in order to better push the connecting iron pipe, the inner end of the pneumatic rod is lifted upward and connected to the backrest frame (the existing motor is usually fixed on the seat frame). This reduces the output angle and makes it easier to push the connecting iron pipe, thereby saving manufacturing costs.
[0025] ③ The seat components are all welded from a single piece of iron tubing, which removes formaldehyde, improving not only sturdiness but also lightness.
[0026] ④ The gas spring acts on the connecting iron pipe, and the backrest can be reclined and the tripod can be flipped through the connecting components, making it highly functional;
[0027] ⑤ The plastic snap fastener can wrap around and tightly clamp the iron pipe, effectively reducing the friction between the plastic snap fastener and the crossbeam caused by shaking, and reducing the occurrence of abnormal noise; the two sides of the circular serpentine spring are connected to the hollow oval hole, which has a good up-and-down rebound effect; multiple circular serpentine springs are connected by a plastic-coated wire frame, so that the circular serpentine springs are evenly stressed, thus achieving a high overall rebound effect, making the user more comfortable to sit on;
[0028] ⑥ The armrests can be hinged to tabletops, allowing the seat armrests to replace side tables and reduce the configuration cost of other tables;
[0029] ⑦ The seat cover is tied to the iron seat frame with connecting ribs, making it easy to assemble and disassemble. Attached Figure Description
[0030] Figure 1 This is an exploded structural diagram of a modular leisure seat.
[0031] Figure 2 This is a schematic diagram of the assembly of the mounting base and the backrest frame.
[0032] Figure 3 This is a schematic diagram of the installation of the connecting ribs.
[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the seat frame.
[0034] Figure 5 This is a schematic diagram of the installation of plastic snap fasteners.
[0035] Figure 6 This is a three-dimensional structural diagram of a lounge chair with armrests and storage compartments.
[0036] Figure 7 This is a three-dimensional structural diagram of a lounge chair with standard armrests.
[0037] Figure 8 A diagram illustrating the installation of rattan weaving in solid wood handrails.
[0038] Figure 9 This is an assembly diagram of the backrest frame and backrest ear frame.
[0039] Figure 10 This is a three-dimensional structural diagram of a plastic snap fastener.
[0040] Figure 11 This is a three-dimensional structural diagram of a plastic snap fastener from another perspective.
[0041] Figure 12 This is a schematic diagram of the three-dimensional structure of a plastic-coated wire frame.
[0042] Figure 13 This is a schematic diagram of the binding of a plastic-coated wire frame and a circular serpentine spring.
[0043] Figure 14 This is a schematic diagram of the cross-section of the rubber support leg.
[0044] Figure 15 This is a three-dimensional structural diagram of the iron frame handrail.
[0045] Figure 16 This is a schematic diagram of the assembly of the hinge and the tabletop.
[0046] Figure 17 This is a schematic diagram of the three-dimensional structure of the hinge.
[0047] Figure 18 A schematic diagram of the side structure opened for the long connecting section of the hinge.
[0048] Figure 19 This is a schematic diagram of a three-dimensional structure for another type of support.
[0049] Figure 20 This is a schematic diagram of a three-dimensional structure for another type of support leg.
[0050] Figure 21 This is a three-dimensional structural diagram of a semi-iron frame handrail. Detailed Implementation
[0051] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0052] In the description of this utility model, 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 accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0056] like Figure 1 A modular leisure chair includes a modular seat cushion, and modular armrests and a modular backrest that are detachable and replaceable on the modular seat cushion. The modular backrest has detachable modular backrest lugs on both sides. The seat frame 1 of the modular seat cushion and the backrest frame 2 of the modular backrest are made of iron pipes. The modular armrests are one of the following: iron frame armrests, solid wood armrests, and upholstered armrests. Each modular armrest includes two armrest frames 3. When the modular armrests are iron frame armrests or upholstered armrests, the armrest frames 3 are made of iron pipes, and a foldable tabletop 4 is installed on at least one side of the armrest frame 3. When the modular armrests are solid wood armrests, rattan woven fabric 5 or a storage cabinet 6 is installed on the armrest frame 3. The seat frame 1, backrest frame 2, and tabletop 4 of the modular leisure chair are fitted with indoor foam. When the modular armrests are iron frame armrests or upholstered armrests, the armrest frames 3 are fitted with indoor foam, and the indoor foam can be detached and replaced with an external drainable foam.
[0057] like Figure 1 , 6 As shown in 7, 8, 15 and 21, modular handrails can be interchanged from these, and they can also be other types of handrails.
[0058] The modular seat cushion is fixedly equipped with detachable and interchangeable modular armrests and detachable and interchangeable modular backrests that can be tilted and laid flat, or it may have a detachable and interchangeable support frame or detachable and interchangeable independent support legs. The modular armrests include all common types such as iron frame armrests, solid wood armrests, and soft-padded armrests. A foldable bracket and table are installed on any side of the modular armrest. The fabric covers of each component of the modular leisure seat can be removed and interchanged. The indoor sponge installed on the seat frame, backrest, armrests, table and other components of the modular leisure seat can be removed and interchanged with external water-draining sponge or rattan.
[0059] The modular seat cushion, backrest, armrest, and backrest ears are respectively provided with a seat frame 1, a backrest frame 2, an armrest frame 3, and a backrest ear frame. The backrest frame 2 and the armrest frame 3 are detachably mounted on the seat frame 1, and the backrest ear frames are detachably mounted on both sides of the backrest frame 2.
[0060] The seat frame 1 includes two symmetrically arranged side iron frames 7, and two lower support iron pipes 8 and two upper support iron pipes 9 welded between the two side iron frames 7. These iron parts enclose a storage space 100. The armrest frame 3 is detachably connected to the outer side of the side iron frames 7. Connecting assemblies are installed on the inner side of the two side iron frames 7, and connecting iron pipes 10 are provided between the two sets of connecting assemblies. A rear connecting iron plate 11 is hinged to the rear side of the connecting assemblies. The rear connecting iron plate 11 is hinged to the seat frame 1, and one end of the rear connecting iron plate 11 extends out of the seat frame 1 and connects to the backrest frame 2. A front connecting iron plate 12 is hinged to the front side of the connecting assemblies, and a leg 13 is connected to the front connecting iron plate 12.
[0061] The lower part of the backrest frame 2 is fixedly provided with a mounting base 14, and a gas spring 15 is provided in the storage space 100. The output end of the gas spring 15 is connected to the connecting iron pipe 10, and the other end of the gas spring 15 is connected to the mounting base 14. The gas spring 15 can act on the connecting iron pipe 10 to drive the connecting plate assembly to move, thereby driving the rear connecting iron plate 11 to rotate so that the backrest frame 2 can rotate a certain angle to tilt backward, and driving the front connecting iron plate 12 to rotate so that the leg frame 13 rotates a certain angle to flip upward.
[0062] In the above design, the seat cushion, backrest, armrests, and backrest lugs are detachable, facilitating assembly and disassembly, increasing container capacity, improving transportation, and reducing transportation costs. The internal motor is replaced with a gas spring. Since the output power of a gas cylinder is relatively small compared to a motor, the inner end of the gas spring is connected to the backrest frame (existing motors are usually fixed to the seat frame) to better push the connecting iron pipe, thus reducing the output angle and making it easier to push the connecting iron pipe, thereby saving manufacturing costs. All seat components are integrally welded from iron pipes, eliminating formaldehyde, improving not only sturdiness but also reducing weight. The gas spring acts on the connecting iron pipe, enabling the backrest to recline and the legrest to flip through the connecting components, offering strong functionality.
[0063] Furthermore, the mounting base 14 includes an L-shaped connecting plate 16 detachably connected to the backrest frame 2, and a U-shaped iron pipe 17 welded to the lower end of the L-shaped connecting plate 16. The U-shaped iron pipe 17 has a pair of rear connecting plates 18, each with a first connecting hole. The connecting iron pipe 10 has a pair of front connecting plates 19, each with a second connecting hole. The two ends of the gas spring 15 extend between the pair of rear connecting plates 18 and the pair of front connecting plates 19, respectively. Pins are inserted into the first and second connecting holes to connect the gas spring 15 to the front connecting plates 19 and the rear connecting plates 18. In this technical solution, the two ends of the gas spring are connected to the iron pipe and the mounting base respectively via pins, making assembly and disassembly convenient. It should be noted that when the gas spring output end acts on the connecting iron pipe, the two ends swing slightly up and down to adapt to the swinging of the connecting iron pipe with the connecting assembly.
[0064] Further, the connecting assembly includes a first fixed iron plate 20, a second fixed iron plate 21, a first rotating iron plate 22, a second rotating iron plate 23, and a transmission iron plate 24. The first fixed iron plate 20 and the second fixed iron plate 21 are fixedly installed on the upper inner side of the side iron frame 7. The first rotating iron plate 22 is hinged to the first fixed iron plate 20. Both ends of the second rotating iron plate 23 are respectively hinged to the first rotating iron plate 22 and the side iron frame 7. The connecting iron pipe 10 is fixedly installed between the two first rotating iron plates 22. One end of the transmission iron plate 24 is hinged to the first rotating iron plate 22. The other end of the transmission iron plate 24 is hinged to the lower outer side of the rear connecting iron plate 11, the second fixed iron plate 21 is hinged to the lower inner side of the rear connecting iron plate 11, the upper part of the rear connecting iron plate 11 extends out of the seat frame 1 and has a locking hole 25 for connection with the backrest frame 2; the connecting plate assembly also includes a third rotating iron plate 26 and a fourth rotating iron plate 27, the two ends of the third rotating iron plate 26 are respectively hinged to the first fixed iron plate 20 and the fourth rotating iron plate 27, the middle part of the third rotating iron plate 26 is hinged to the second rotating iron plate 23, and the other ends of the second rotating iron plate 23 and the fourth rotating iron plate 27 are hinged to the front connecting iron plate 12.
[0065] In the above technical solution, when the gas spring is pushed forward, it can drive the connecting iron pipe to move, thereby driving the first rotating iron plate to rotate, which in turn pulls the transmission iron plate to make the rear connecting iron plate rotate. The backrest frame connected to the rear connecting iron plate rotates and reclines, and also drives the rotation of the second, third and fourth rotating iron plates, thereby causing the front connecting iron plate and the tripod to flip. By controlling the gas spring, the backrest can recline and the tripod can be flipped in a comfortable position, making it more functional and comfortable.
[0066] Furthermore, connectors are fixedly provided on both sides of the lower part of the backrest frame 2. The connectors include a connecting shell 28 and a U-shaped connecting piece 29 disposed on the upper end of the connecting shell 28. An installation space is formed inside the connecting shell 28. A V-shaped spring-loaded piece 30 is formed on the lower outer side of the U-shaped connecting piece 29. The upper part of the rear connecting iron piece 11 extends into the installation space, and the inner end of the V-shaped spring-loaded piece 30 extends into the snap-fit hole 25 for connection. In this technical solution, the backrest frame and the seat frame are detachably assembled through the snap-fit connection between the connector and the connecting iron piece, which is very convenient for disassembly and assembly, reduces the packaging volume, and facilitates user assembly.
[0067] Furthermore, the upper sides of the backrest frame 2 are fixedly provided with first inserts 31, the first inserts 31 being trapezoidal in shape with a gradually decreasing diameter from top to bottom, and forming a first connecting groove with an open outer end inside the first inserts 31; the inner end of the back ear frame is fixedly provided with a second insert 32 that engages with the first inserts 31, the second insert 32 being trapezoidal in shape that matches the first connecting groove, and forming a second connecting groove with an open outer end inside the second insert 32. In this technical solution, the back ear and the backrest are assembled using two inserts, which is very convenient for assembly and disassembly, reduces the packaging volume, and facilitates user assembly.
[0068] Furthermore, the rear connecting iron plate 11 includes an upper connecting plate 33 and a lower connecting plate 34. The lower connecting plate 34 is located below the rear upper supporting iron pipe 9, and the upper connecting plate 33 is located outside the rear upper supporting iron pipe 9, forming a notch 35 between it and the lower connecting plate 34 that abuts against the rear upper supporting iron pipe 9. The lower connecting plate 34 forms a hinge with the transmission iron plate 24 and the second fixed iron plate 21. In this technical solution, the notch abuts against the rear upper supporting iron pipe to achieve a limiting action, so that when the gas spring is running, the upper connecting plate rotates rearward and outward to adjust the position of the backrest.
[0069] Furthermore, the side iron frame 7 and the handrail frame 3 are respectively provided with multiple connection interfaces 36. When the modular handrail is an iron frame handrail or a soft-padded handrail, at least two vertical beams 37 are welded inside the handrail frame 3. The vertical beams 37 are hinged to the table board 4 through hinges 38, so that the table board 4 can be flipped relative to the vertical beams 37 and kept in a horizontal state under the action of external force, or flipped relative to the vertical beams 37 to return to a vertical state.
[0070] Specifically, the hinge includes a short connecting section 108 and a long connecting section 109, and the adapter frame of the short connecting section is located on the upper outer side of the long connecting section. The two are rotatably connected to each other through the first connecting pin 110.
[0071] The long connecting section has longitudinally spaced limiting holes 111 on both sides. The lower part of the short connecting section is provided with a second connecting pin 112, and the upper part of the limiting holes on both sides is provided with a third connecting pin 113. The two ends of the second connecting pin and the two ends of the third connecting pin are respectively connected with limiting pieces 114. When the short connecting section and the long connecting section rotate relative to each other, they drive the limiting pieces to move, thereby pulling the third connecting pin to move longitudinally on the limiting holes. The connecting groove of the long connecting section is provided with a locking member, which is configured to lock the third connecting pin on the limiting holes when the short connecting section and the long connecting section are at right angles. The locking mechanism includes a U-shaped locking block 115, a fourth connecting pin 116, and a torsion spring. The fourth connecting pin passes 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, and the U-shaped locking block is located outside the torsion spring. The two torsion arms of the torsion spring abut against the upper and lower sides of the inner wall of the U-shaped locking block. When the third connecting pin moves upward, it pushes open the upper part of the U-shaped locking block and moves it to the upper end of the limiting hole. Under the action of the torsion spring, the U-shaped locking block returns to its original position and presses against the lower end of the third connecting pin, thus allowing the third connecting pin to remain at the upper end of the limiting hole. This keeps the limiting plate and the second connecting pin in a locked state, and the tabletop remains stable in a horizontal position. The multiple hinge design improves the load-bearing capacity of the tabletop. In this case, the two hinge designs allow the tabletop to bear a load of approximately 50KG, which is high enough to meet daily use. To unlock, simply press the outer side of the U-shaped locking block, the inner end of the U-shaped locking block rises, the third connecting pin falls, and the tabletop returns to its original position. It should be noted that if the short connecting section is fixed to the vertical beam, the third connecting pin will move laterally when it is in the limiting hole. If the long connecting section is fixed to the vertical beam, the third connecting pin will move longitudinally when it is in the limiting hole.
[0072] In this way, the tabletop can be kept in a horizontal position after being opened, which can be used to place items or for office work, and can replace the function of a side table, reducing the space occupied and configuration cost of a side table.
[0073] Furthermore, a connecting rib 39 is fixedly provided below the upper tube of the side iron frame 7 along the length of the side iron frame 7. The seat cushion cover is installed on the connecting rib 39 by snaps, and the connecting rib 39 forms a protruding ridge that is welded and fixed to the lower end of the upper tube of the side iron frame 7. In this technical solution, the seat cushion cover is installed without nails. A connecting rib is set on the side iron frame of the seat frame, and several snaps are installed on the inside of the seat cushion cover. The snaps are snapped onto the connecting rib to fix the fabric, eliminating the traditional nail-gluing method, improving work time and efficiency, and making the product appearance neater and more beautiful. The protruding ridge on the connecting rib is welded and fixed to the lower end of the upper tube of the side iron frame, which further fixes the connecting rib and prevents the connecting rib from bending due to excessive length.
[0074] Furthermore, the upper and lower surfaces of the supporting iron pipe 9 are symmetrically provided with multiple fixing holes for installing plastic snap fasteners 40. The inner walls of the plastic snap fasteners 40 are provided with protrusions 41 on their upper and lower surfaces. The protrusions 41 extend into the fixing holes, allowing the plastic snap fasteners 40 to be snapped and fixed onto the iron pipe. Two elliptical blocks 42 are provided on the side ends of the plastic snap fasteners 40. The two elliptical blocks 42 are fitted with female and male tenons that are radially locked to them. After the two elliptical blocks 42 are snapped together, they form hollow elliptical holes 43. Circular serpentine springs 44 are hung on the hollow elliptical holes 43 on both sides to connect the plastic snap fasteners 40 on both sides. The plastic snap fasteners 40 are connected by the protrusions 41 and the fixing holes. The plastic snap fastener 40 is locked onto the seat frame 1 to prevent noise caused by friction between the plastic snap fastener 40 and the seat frame 1 when the circular serpentine spring 44 moves up and down repeatedly. The top of the plastic snap fastener 40 is provided with a U-shaped connecting block 45 for detachable snap-fit fixation to the seat cover. The lower end face of the multiple circular serpentine springs 44 is provided with a plastic-coated wire frame to connect the multiple circular serpentine springs 44 so that they are evenly stressed as a whole, resulting in high resilience. The plastic-coated wire frame includes PVC fixing frame strips 46 and PVC fixing straight strips 47, which are tied and fixed to the multiple circular serpentine springs 44 by fixing sleeves 200. In this design, the plastic snap fastener can wrap around and tightly fasten the iron pipe, effectively reducing friction between the plastic snap fastener and the crossbeam caused by shaking, thus reducing abnormal noise; the two sides of the circular serpentine spring are connected to the hollow elliptical hole, providing good up-and-down rebound; multiple circular serpentine springs are connected by a plastic-coated wire frame, so that the circular serpentine springs are evenly stressed, thus achieving a high overall rebound effect and making the user more comfortable to sit on.
[0075] The seat frame is fixed to the iron seat frame using plastic U-shaped buckles, and the hollow oval side is used to hang the circular serpentine springs. The fixing holes of the circular serpentine springs are matched with the protrusions of the circular serpentine springs to prevent friction and noise when the human body repeatedly sits up and down. The seat frame and the circular serpentine springs are connected by plastic U-shaped buckles at both ends to achieve a more comfortable sitting experience. The top U-shaped plastic U-shaped buckle is fixed by a buckle from the seat cushion cover, which can be removed. The elastic component includes multiple circular serpentine springs. The circular serpentine springs are fixed by two plastic-coated wire frames on the top and bottom, so that the circular serpentine springs on the seat frame are evenly supported, achieving a high rebound effect and never deforming.
[0076] Furthermore, the bottom of the side iron frame 7 is provided with several rubber feet 48. Each rubber foot 48 includes a main body and a connecting rod 49 fixed to the upper end of the main body. The connecting rod 49 is threaded to the side iron frame 7. The main body is frustum-shaped and its outer diameter gradually increases from top to bottom. The side wall of the main body is curved and transitions. The bottom of the main body has a deformation groove 50 constructed on the inner side of the main body.
[0077] like Figure 14 , 19As shown in Figure 20, the independent feet can be interchanged with these, and they can also be other independent feet.
[0078] The seat frame is fixed with all interchangeable armrest support frames and independent leg support frames. The four corners of the seat frame have welded diagonal iron pipes with connection interfaces for installing independent support legs. The seat frame includes two symmetrically arranged side support iron frame armrests, which can be replaced with independent support legs. The screw holes for installing various armrests and backrests on both sides of the seat frame are standardized, allowing for interchangeability of any style of armrest and backrest. The four corners of the seat frame have welded diagonal iron pipes with holes for installing independent support legs, allowing for the disassembly and interchangeability of various styles of legs.
[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0080] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled 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 spirit of the present invention.
Claims
1. A modular lounge chair, comprising a modular seat cushion, modular armrests and a modular backrest detachably and replaceably mounted on the modular seat cushion, wherein modular backrest tabs are detachably provided on both sides of the modular backrest, wherein, The seat frame (1) of the modular seat cushion and the backrest frame (2) of the modular backrest are made of iron pipes. The modular armrest is one of iron frame armrest, solid wood armrest and soft-padded armrest. 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, rattan (5) or a storage cabinet (6) is installed on the armrest frame (3). The seat frame (1), backrest frame (2) and table board (4) of the modular leisure chair are fitted with indoor sponge. When the modular armrest is an iron frame armrest or a soft-padded armrest, the armrest frame (3) is fitted with indoor sponge. The indoor sponge can be detached and replaced with an external drainable sponge. The feature is that: The modular seat cushion, backrest, armrest and back ear are respectively provided with seat frame (1), backrest frame (2), armrest frame (3) and back ear frame. The backrest frame (2) and armrest frame (3) are detachably mounted on the seat frame (1), and the back ear frame is detachably mounted on both sides of the backrest frame (2). The seat frame (1) includes two symmetrically arranged side iron frames (7), and two lower support iron pipes (8) and two upper support iron pipes (9) welded between the two side iron frames (7). These iron parts enclose a storage space (100). The armrest frame (3) is detachably connected to the outer side of the side iron frame (7). Connecting assemblies are installed on the inner side of the two side iron frames (7), and connecting iron pipes (10) are provided between the two sets of connecting assemblies. A rear connecting iron plate (11) is hinged to the rear side of the connecting assemblies. The rear connecting iron plate (11) is hinged to the seat frame (1), and one end of the rear connecting iron plate (11) extends out of the seat frame (1) and connects to the backrest frame (2). A front connecting iron plate (12) is hinged to the front side of the connecting assemblies, and a leg frame (13) is connected to the front connecting iron plate (12). The lower part of the backrest frame (2) is fixedly provided with a mounting base (14), and a gas spring (15) is provided in the storage space (100). The output end of the gas spring (15) is connected to the connecting iron pipe (10), and the other end of the gas spring (15) is connected to the mounting base (14). The gas spring (15) can act on the connecting iron pipe (10) to drive the connecting plate assembly to move, thereby driving the rear connecting iron plate (11) to rotate so that the backrest frame (2) can rotate a certain angle to tilt backward, and driving the front connecting iron plate (12) to rotate so that the leg frame (13) rotates a certain angle to flip upward.
2. A modular leisure chair according to claim 1, characterized in that: The mounting base (14) includes an L-shaped connecting plate (16) detachably connected to the backrest frame (2), and a U-shaped iron pipe (17) welded to the lower end of the L-shaped connecting plate (16). The U-shaped iron pipe (17) is provided with a pair of rear docking iron plates (18), and a first connecting hole is provided on the rear docking iron plates (18). The connecting iron pipe (10) is provided with a pair of front docking iron plates (19), and a second connecting hole is provided on the front docking iron plates (19). The two ends of the gas rod (15) extend between the pair of rear docking iron plates (18) and the pair of front docking iron plates (19), respectively. Pins are inserted into the first connecting hole and the second connecting hole to connect the gas rod (15) with the front docking iron plates (19) and the rear docking iron plates (18).
3. A modular leisure chair according to claim 1, characterized in that: The connecting assembly includes a first fixed iron plate (20), a second fixed iron plate (21), a first rotating iron plate (22), a second rotating iron plate (23), and a transmission iron plate (24). The first fixed iron plate (20) and the second fixed iron plate (21) are fixedly installed on the upper inner side of the side iron frame (7). The first rotating iron plate (22) is hinged to the first fixed iron plate (20). The two ends of the second rotating iron plate (23) are respectively hinged to the first rotating iron plate (22) and the side iron frame (7). The connecting iron pipe (10) is fixedly installed between the two first rotating iron plates (22). One end of the transmission iron plate (24) is hinged to the first rotating iron plate (22). (24) The other end is hinged to the lower outer side of the rear connecting iron plate (11), the second fixed iron plate (21) is hinged to the lower inner side of the rear connecting iron plate (11), the upper part of the rear connecting iron plate (11) extends out of the seat frame (1) and has a card hole (25) for connecting with the backrest frame (2); the connecting plate assembly also includes a third rotating iron plate (26) and a fourth rotating iron plate (27), the two ends of the third rotating iron plate (26) are respectively hinged to the first fixed iron plate (20) and the fourth rotating iron plate (27), the middle part of the third rotating iron plate (26) is hinged to the second rotating iron plate (23), and the other ends of the second rotating iron plate (23) and the fourth rotating iron plate (27) are hinged to the front connecting iron plate (12).
4. A modular leisure chair according to claim 3, characterized in that: The lower two sides of the backrest frame (2) are fixed with connectors. The connectors include a connecting shell (28) and a U-shaped connecting piece (29) set on the upper end of the connecting shell (28). An installation space is formed inside the connecting shell (28). A V-shaped spring plate (30) is formed on the lower outer side of the U-shaped connecting piece (29). The upper part of the rear connecting iron piece (11) extends into the installation space, and the inner end of the V-shaped spring plate (30) extends into the card hole (25) for snap-fit connection.
5. A modular leisure chair according to claim 4, characterized in that: The upper sides of the backrest frame (2) are fixedly provided with first inserts (31), the first inserts (31) are trapezoidal in shape with the diameter gradually decreasing from top to bottom, and a first connecting groove with an open outer end is formed inside the first inserts (31); the inner end of the back ear frame is fixedly provided with a second insert (32) that is inserted and matched with the first inserts (31), the second inserts (32) are trapezoidal in shape that matches the first connecting groove, and a second connecting groove with an open outer end is formed inside the second inserts (32).
6. A modular leisure chair according to claim 3, characterized in that: The rear connecting iron plate (11) includes an upper connecting plate (33) and a lower connecting plate (34). The lower connecting plate (34) is located below the rear upper supporting iron pipe (9). The upper connecting plate (33) is located outside the rear upper supporting iron pipe (9) and forms a notch (35) between it and the lower connecting plate (34) that abuts against the rear upper supporting iron pipe (9). The lower connecting plate (34) forms a hinge with the transmission iron plate (24) and the second fixed iron plate (21) respectively.
7. A modular leisure chair according to claim 1, characterized in that: The side iron frame (7) and the handrail frame (3) are provided with multiple connection interfaces (36). When the modular handrail is an iron frame handrail or a soft-pack handrail, at least two vertical beams (37) are welded inside the handrail frame (3). The vertical beams (37) are hinged to the table (4) through hinges (38), so that the table (4) can be flipped relative to the vertical beams (37) and kept in a horizontal state under the action of external force, or flipped relative to the vertical beams (37) and restored to a vertical state.
8. A modular leisure chair according to claim 7, characterized in that: A connecting rib (39) is fixedly provided below the upper tube of the side iron frame (7) along the length direction of the side iron frame (7). The seat cover is installed on the connecting rib (39) by a buckle. A protruding ridge is formed on the connecting rib (39) and welded to the lower end of the upper tube of the side iron frame (7).
9. A modular leisure chair according to claim 8, characterized in that: The upper and lower surfaces of the supporting iron pipe (9) are symmetrically provided with multiple fixing holes for installing plastic snap fasteners (40). The inner walls of the plastic snap fasteners (40) are provided with protrusions (41) on the upper and lower surfaces. The protrusions (41) extend into the fixing holes to fix the plastic snap fasteners (40) onto the iron pipe. The side ends of the plastic snap fasteners (40) are provided with two elliptical blocks (42). The two elliptical blocks (42) are fitted with female and male tenons that are radially locked to them. After the two elliptical blocks (42) are fitted, they form hollow elliptical holes (43). Circular serpentine springs (44) are hung on the hollow elliptical holes (43) on both sides to connect the plastic snap fasteners (40) on both sides. The plastic snap fasteners (40) are connected by the protrusions (41) and fixing holes. The plastic clip (40) is locked to the seat frame (1) to prevent noise caused by friction between the plastic clip (40) and the seat frame (1) when the circular serpentine spring (44) moves up and down repeatedly; the top of the plastic clip (40) is provided with a U-shaped connecting block (45) for detachable snap-fit fixing to the seat cover; the lower end face of the multiple circular serpentine springs (44) is provided with a plastic-coated wire frame for connecting the multiple circular serpentine springs (44) so that they are evenly stressed as a whole, and play a high rebound role; the plastic-coated wire frame includes a PVC fixing frame strip (46) and a PVC fixing straight strip (47), and the PVC fixing frame strip (46) and the PVC fixing straight strip (47) are fixed to the multiple circular serpentine springs (44) by a fixing sleeve.
10. A modular leisure chair according to claim 9, characterized in that: The bottom of the side iron frame (7) is provided with several rubber feet (48). The rubber feet (48) include a main body and a connecting rod (49) fixed to the upper end of the main body. The connecting rod (49) is threaded to the side iron frame (7). The main body is frustum-shaped and its outer diameter gradually increases from top to bottom. The side wall of the main body is curved. The bottom of the main body has a deformation groove (50) built on the inner side of the main body.