Chair convenient to disassemble, assemble and package

Abstract

The utility model discloses a chair convenient to disassemble, assemble and package, which comprises a chair seat and backrest foldable combination body and a pair of armrest and supporting leg fixed combination bodies which are in bilateral symmetry, and the chair seat and backrest foldable combination body comprises a chair seat part and a backrest part; the armrest and supporting leg fixing combination body comprises a horizontal armrest part, a front supporting leg part and a rear supporting leg part, the left side and the right side of the front end of the chair seat part are fixedly connected with the front supporting leg parts on the corresponding sides through hand screws respectively, and the left side and the right side of the backrest part are fixedly connected with the rear supporting leg parts on the corresponding sides through hand screws respectively. The utility model discloses not only need professional technicians and tool-free assembly and disassembly, have the advantage of very convenient and fast disassembly and assembly, and also have the advantages of convenient packaging, can obviously improve the encasement volume and reduce the transportation cost, in addition, also have simple structure, easy realization of low-cost batch manufacturing and production, good stability, difficult damage, long service life and the like.

Description

Technical Field

[0001] This utility model relates to a chair that is easy to assemble, disassemble, and package, and belongs to the field of furniture design technology. Background Technology

[0002] Chairs are a common piece of furniture in people's lives, indispensable in homes, leisure spaces, and offices. Currently, chair sales are inseparable from packaging and transportation issues. While a model of pre-assembling and then packaging for transport avoids the hassle of users assembling themselves or hiring professionals, it suffers from problems such as excessive packaging volume, wasted storage space, susceptibility to damage during transport, and high transportation costs. Conversely, a sales model of disassembling and packaging for transport, followed by reassembly at the destination, requires chairs that are easy to assemble, ideally tool-free; otherwise, it will cause assembly difficulties for end users, potentially impacting sales. Therefore, there is a need in this field to develop chairs that are both easy to package and transport and easy to disassemble, enabling convenient sales through various models such as online and overseas sales. Utility Model Content

[0003] In view of the above-mentioned problems and needs of the existing technology, the purpose of this utility model is to provide a chair that is easy to disassemble and package.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A chair that is easy to assemble, disassemble, and pack includes a foldable combination of a seat and a backrest and a pair of symmetrical armrests and legs. The foldable combination of the seat and backrest includes a seat portion and a backrest. Each armrest and leg fixing assembly includes a horizontal armrest portion, a front leg, and a rear leg. The front left and right sides of the seat portion are fixedly connected to the corresponding front legs by hand-tightened screws. The left and right sides of the backrest are fixedly connected to the corresponding rear legs by hand-tightened screws.

[0006] In one embodiment, an L-shaped connector is fixedly provided on the lower left and right sides of the backrest, and the front parts of the horizontal arms of the L-shaped connectors on the left and right rear ends of the seat are rotatably connected to the corresponding sides of the backrest.

[0007] In a further embodiment, the vertical arm of the L-shaped connector extends downward from the lower end of the backrest, and the lower part of the vertical arm is connected to its corresponding rear support leg via a quick-release structure.

[0008] In one embodiment, a quick-connection hole is provided at the lower part of the vertical arm, and a quick-connection post is provided on the corresponding rear support leg. The quick-connection hole is integrally formed from top to bottom by a small-diameter positioning hole and a large-diameter inlet / outlet hole. The quick-connection post is formed by a large head and a narrow neck. Furthermore, the outer diameter of the large head is smaller than the diameter of the inlet / outlet hole but larger than the diameter of the positioning hole, and the outer diameter of the narrow neck is smaller than or equal to the diameter of the positioning hole.

[0009] In a preferred embodiment, the positioning hole is an oblong hole, and the inlet / outlet hole is a round hole.

[0010] In one embodiment, both the large head and the narrow neck are cylindrical.

[0011] In another embodiment, the large head is hemispherical and the narrow neck is cylindrical.

[0012] In a preferred embodiment, a protective sleeve is fitted onto the lower part of the vertical arm, and the protective sleeve has a through hole that matches the quick-connect hole.

[0013] In one embodiment, a fixing rod is fixedly provided at the bottom front of the seat. Screw holes A that are adapted to hand-tightening screws A are provided at the center of the left and right ends of the fixing rod. A fixing sleeve adapted to the end of the fixing rod is fixedly provided on the front support leg. The fixing sleeve and the corresponding end of the fixing rod are connected by a washer and a hand-tightening screw A.

[0014] In one embodiment, the hand-tightening end of the hand-tightening screw A is polygonal.

[0015] In one embodiment, fixed protrusions for connecting to the rear support legs are symmetrically fixed on the left and right sides of the backrest. A screw hole B adapted to a hand-tightening screw B is provided in the center of the fixed protrusion. A screw through hole is provided on the rear support leg at a position corresponding to the fixed protrusion. The hand-tightening screw B passes through the screw through hole and connects to the screw hole B.

[0016] In one embodiment, the hand-tightening end of the hand-tightening screw B is figure-eight shaped.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] This invention disassembles a chair into three components: a foldable seat and backrest, and a pair of symmetrical armrests and legs. Assembly requires only four hand-tightened screws, making assembly and disassembly extremely convenient, requiring no professional technicians or tools. Furthermore, because the seat and backrest are foldable and the armrests and legs are fixed as a single unit, packaging is very convenient, significantly reducing packaging volume and allowing for stacking of multiple units, thus saving storage space, increasing packing capacity, and reducing transportation costs. In addition, the chair of this invention has many advantages, including simple structure, ease of low-cost mass production, good stability, durability, and long service life. Therefore, this invention has significant practical value and progress compared to existing technologies. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a chair that is easy to disassemble and package, provided by an embodiment of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the chair provided in the embodiment from another perspective;

[0021] Figure 3 This is an exploded structural diagram of the chair provided in the embodiment;

[0022] Figure 4 This is a schematic diagram of the structure of the foldable combination of the seat and backrest described in the embodiment;

[0023] Figure 5 yes Figure 4 The diagram shown is a structural schematic of the foldable combination of seat and backrest from another perspective.

[0024] Figure 6 This is a schematic diagram of the structure of the fixed combination of handrail and support leg described in the embodiment;

[0025] Figure 7 yes Figure 6 The diagram shown is a structural schematic of the fixed assembly of the handrail and support legs from another perspective.

[0026] Figure 8 yes Figure 4 The diagram shows the structure of the foldable combination of seat and backrest in the inverted state.

[0027] Figure 9 This is a schematic diagram of the structure of the protective sleeve described in the embodiment;

[0028] Figure 10 This is a diagram showing the foldable combination of the seat and backrest described in the embodiment when folded.

[0029] Figure 11 This is a state diagram of the chairs being stacked and packaged as described in a single embodiment;

[0030] Figure 12 This is a diagram showing the stacking of the handrail and support leg fixed assembly as described in multiple embodiments;

[0031] Figure 13 These are state diagrams of the chairs being stacked and packaged as described in multiple embodiments;

[0032] The labels in the diagram are as follows:

[0033] 1. Foldable combination of seat and backrest; 1-1. Seat section; 1-11. Fixing rod; 1-111. Screw hole A; 1-2. Backrest; 1-21. Fixing protrusion; 1-211. Screw hole B; 2. Fixed combination of armrest and support leg; 2-1. Horizontal armrest section; 2-2. Front support leg section; 2-21. Fixing sleeve; 2-3. Rear support leg section; 2-31. Quick-connect connecting post; 2-311. Large head; 2-312. Narrow neck; 2-32. Screw through hole; 3. Hand-tightening screw; 3a. Hand-tightening screw A; 3b. Hand-tightening screw B; 4. L-shaped connector; 4-1. Horizontal arm; 4-2. Vertical arm; 4-21. Quick-connect connecting hole; 4-211. Positioning hole; 4-212. Inlet / outlet hole; 5. Pin; 6. Protective sleeve; 6-1. Through hole; 7. Washer. Detailed Implementation

[0034] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Furthermore, it should be noted that the terminology used in this utility model is for the purpose of describing specific embodiments only and is not intended to limit the utility model. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by those skilled in the art. The terms "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limiting the utility model.

[0035] Example

[0036] Please combine Figures 1 to 3As shown, this embodiment provides a chair that is easy to assemble, disassemble, and package, including a foldable combination of seat and backrest 1 and a pair of symmetrical armrest and leg fixing combinations 2. The foldable combination of seat and backrest 1 includes a seat part 1-1 and a backrest 1-2. Each armrest and leg fixing combination 2 includes a horizontal armrest part 2-1, a front leg part 2-2, and a rear leg part 2-3. The front left and right sides of the seat part 1-1 are fixedly connected to the corresponding front leg part 2-2 by hand-tightening screws 3 (in this embodiment, hand-tightening screw A 3a is used). The left and right sides of the backrest 1-2 are fixedly connected to the corresponding rear leg part 2-3 by hand-tightening screws 3 (in this embodiment, hand-tightening screw B 3b is used).

[0037] Specifically, please see Figure 4 and Figure 5 As shown, in this embodiment, an L-shaped connector 4 is fixedly provided on the lower left and right sides of the backrest 1-2. The front parts of the horizontal arms 4-1 of the L-shaped connector 4 on the left and right sides of the rear end of the seat 1-1 are rotatably connected by screws 5 (or other rotatable connection methods such as pins or pin shafts). The seat 1-1 and the backrest 1-2 are connected as one unit by the L-shaped connector 4, and the rotatable connection allows the seat 1-1 and the backrest 1-2 to be foldable (see [link to documentation]). Figure 10 As shown in the image, this design not only simplifies the assembly and disassembly process but also makes it easier to store and package.

[0038] In addition, in this embodiment, the vertical arm 4-2 of the L-shaped connector 4 extends downward from the lower end of the backrest 1-2, and a quick-connection hole 4-21 is provided at the lower part of the vertical arm 4-2. The quick-connection hole 4-21 is integrally formed from top to bottom by a small-diameter positioning hole 4-211 and a large-diameter inlet / outlet hole 4-212 (see [link]). Figure 4 and Figure 5 (As shown); a quick-connecting post 2-31 is provided on the corresponding rear support leg 2-3. The quick-connecting post 2-31 is formed by a large head 2-311 and a narrow neck 2-312. Furthermore, the outer diameter of the large head 2-311 is smaller than the diameter of the inlet / outlet hole 4-212 but larger than the diameter of the positioning hole 4-211, and the outer diameter of the narrow neck 2-312 is less than or equal to the diameter of the positioning hole 4-211 (see also...). Figure 6 and Figure 7(As shown); that is, the large head 2-311 of the quick-connecting post 2-31 can freely enter and exit through the inlet / outlet hole 4-212. When the narrow neck 2-312 of the quick-connecting post 2-31 is located at the high position of the positioning hole 4-211, a tight assembly connection between the quick-connecting post 2-31 and the quick-connecting hole 4-21 can be achieved. At this time, the large head 2-311 of the quick-connecting post 2-31 is located on the outer side of the positioning hole 4-211, which can further limit the position.

[0039] As a preferred embodiment, the positioning hole 4-211 is an oblong hole, and the inlet / outlet hole 4-212 is a round hole (see [link]). Figure 4 and Figure 5 As shown), this design not only facilitates processing but also makes disassembly and assembly easy; the large head 2-311 is hemispherical, and the narrow neck 2-312 is cylindrical (see [reference]). Figure 6 and Figure 7 As shown), of course, the large head 2-311 and the thin neck 2-312 can both be cylindrical, but a hemispherical design for the large head 2-311 will be more conducive to guidance and positioning.

[0040] As a preferred embodiment, a protective sleeve 6 is fitted onto the lower part of the vertical arm 4-2, and the protective sleeve 6 has a through hole 6-1 that corresponds to the quick-connect hole 4-21 (see [link]). Figures 8 to 10 As shown), the protective sleeve 6 protects the L-shaped connector 4 from scratches or bumps during transportation, and also prevents it from scratching or bumping the handle and leg fixing assembly 2 (see Figure 2) when stacked and packaged. Figure 11 (As shown).

[0041] In addition, please see Figures 1 to 8As shown, in this embodiment, a fixing rod 1-11 is fixedly provided at the bottom front of the seat 1-1. Screw holes A1-111, which are compatible with hand-tightened screws A3a, are provided at the center of both ends of the fixing rod 1-11. A fixing sleeve 2-21, which is compatible with the end of the fixing rod 1-11, is fixedly provided on the front support leg 2-2. The fixing sleeve 2-21 is connected to the end of the corresponding fixing rod 1-11 via a washer 7 and a hand-tightened screw A3a. Fixing protrusions 1-21, which are symmetrically fixed on the left and right sides of the backrest 1-2 for connection with the rear support leg 2-3, are provided. A screw hole B1-211, which is compatible with hand-tightened screws B3b, is provided at the center of the fixing protrusion 1-21. A screw through hole 2-32 is provided on the rear support leg 2-3 at a position corresponding to the fixing protrusion 1-21. The hand-tightened screw B3b passes through the screw through hole 2-32 and connects to the screw hole B1-211. It should be noted that the fixing rod 1-11 can be fixedly connected to the front bottom frame of the seat part 1-1 by welding or screws, preferably by screws. Both the hand-tightening screw A 3a and the hand-tightening screw B 3b consist of a screw shank and a hand-tightening end. In this embodiment, the hand-tightening end of the hand-tightening screw A 3a is a regular octagon, and the hand-tightening end of the hand-tightening screw B 3b is a figure-eight shape, but not limited to the shapes shown in the figure. This design in this embodiment also considers aesthetics.

[0042] Please see Figure 3 As shown, the specific assembly operation of the chair described in this utility model is as follows:

[0043] First, rotate the backrest 1-2 of the foldable combination of seat and backrest 1 backward until the horizontal arm 4-1 of the L-shaped connector 4 is in a horizontal state and the vertical arm 4-2 is in a downward vertical state.

[0044] Then, position the left armrest and leg fixing assembly 2 on the left side of the seat and backrest foldable assembly 1, and the right armrest and leg fixing assembly 2 on the right side of the seat and backrest foldable assembly 1. Then, position the fixing sleeves 2-21 on each armrest and leg fixing assembly 2 to the corresponding ends of the fixing rods 1-11 located at the bottom front of the seat 1-1. Finally, position the large heads 2-311 of the quick-connecting posts 2-31 on each armrest and leg fixing assembly 2 through their corresponding inlet / outlet holes 4-212. Then, press the rear end of the seat 1-1 downwards, causing the thin necks 2-312 of the quick-connecting posts 2-31 on both sides to enter their corresponding positioning holes 4-211 and reach the highest position of the positioning holes 4-211.

[0045] Next, pass the hand-tightened screw A 3a through the washer 7 and screw hole A 1-111 to achieve a detachable fixed connection between the front left and right sides of the seat 1-1 and the corresponding front support legs 2-2. Then, align the screw holes 2-32 on each rear support leg 2-3 with the screw holes B 1-211 on the fixing protrusions 1-21 on the left and right sides of the backrest 1-2. Then, pass the hand-tightened screw B 3b through the screw holes 2-32 and screw it into the screw holes B 1-211 to achieve a detachable fixed connection between the left and right sides of the backrest 1-2 and the corresponding rear support legs 2-3. This completes the assembly of the chair. Figure 1 The chair shown.

[0046] To disassemble the chair described in this utility model, simply unscrew the two hand-tightening screws A 3a located on both sides of the front end of the seat 1-1 and the two hand-tightening screws B 3b located on the left and right sides of the backrest 1-2. Then, press down on the armrest and leg fixing assembly 2 and lift the backrest 1-2 upwards. This will allow the narrow neck 2-312 of the quick-release connecting post 2-31 on the rear leg 2-3 to move down into the inlet / outlet hole 4-212, thereby allowing the quick-release connecting post 2-31 on the rear leg 2-3 to disengage from the quick-release connecting hole 4-21. This will allow the armrest and leg fixing assembly 2 to separate from the foldable assembly 1 of the seat and backrest, thus completing the disassembly operation.

[0047] Place the two disassembled armrests and leg fixing assembly 2 facing each other, then stack the disassembled, folded seat and backrest foldable assembly 1 on top of the two armrests and leg fixing assembly 2 to achieve neat packaging (see [link to packaging]). Figure 11 As shown in the figure, it has advantages such as easy packaging and small packaging volume.

[0048] Additionally, please see Figure 12 and Figure 13 As shown, the chair described in this utility model can also be stacked and packaged in multiple pieces. For example, the figure shows a stacking state of 6 chairs. First, 6 armrests and legs fixed together on the same side can be placed side by side, and then another 6 armrests and legs fixed together on the same side can be placed side by side. Then, the armrests and legs fixed together on both sides can be placed facing each other. Then, 6 foldable seats and backrests fixed together in a folded state can be stacked in two rows on top of the armrests and legs fixed together. Finally, the whole thing can be packed together, which can significantly save storage space, significantly increase the packing capacity and reduce transportation costs.

[0049] It should also be noted that the seat surface of the chair seat 1-1 and the backrest of the backrest 1-2 described in this utility model can be a board surface, a cloth surface, a rattan woven surface, etc., and this utility model does not make any special limitations on them.

[0050] As can be seen from the above, this utility model disassembles the chair into three components: a foldable combination of seat and backrest 1, and a pair of fixed combinations of armrests and legs 2. This allows for assembly using only four hand-tightened screws 3, making assembly and disassembly extremely convenient, requiring no professional technicians or tools. Furthermore, because the seat 1-1 and backrest 1-2 are foldable, and the armrests 2-1 and legs 2-2 and 2-3 on each side are fixed as a single unit, packaging is very convenient, significantly reducing packaging volume and allowing for stacking of multiple units, thus saving storage space, increasing packing capacity, and reducing transportation costs. In addition, the chair of this utility model has many advantages, including simple structure, ease of low-cost mass production, good stability, durability, and long service life. Therefore, this utility model has significant practical value and progress compared to existing technologies.

[0051] Finally, it should be pointed out that the above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chair that is easy to assemble, disassemble, and pack, comprising a foldable combination of a seat and a backrest and a pair of symmetrically arranged armrests and legs, wherein the foldable combination of the seat and backrest includes a seat portion and a backrest, and each of the armrest and leg fixing combinations includes a horizontal armrest portion, a front leg, and a rear leg; the front left and right sides of the seat portion are respectively fixedly connected to the corresponding front leg portions by hand-tightening screws, and the left and right sides of the backrest are respectively fixedly connected to the corresponding rear leg portions by hand-tightening screws; characterized in that: An L-shaped connector is fixedly installed on the lower left and right sides of the backrest. The front parts of the horizontal arms of the L-shaped connectors on the left and right rear ends of the seat are rotatably connected to the corresponding sides of the backrest. The vertical arm of the L-shaped connector extends downward from the lower end of the backrest, and the lower part of the vertical arm is connected to the corresponding rear support leg through a quick-release structure.

2. The chair that is easy to disassemble and package according to claim 1, characterized in that: A quick-connection hole is provided at the lower part of the vertical arm, and a quick-connection post is provided on the corresponding rear support leg. The quick-connection hole is integrally formed from top to bottom by a small-diameter positioning hole and a large-diameter inlet / outlet hole. The quick-connection post is formed by a large head and a narrow neck. Furthermore, the outer diameter of the large head is smaller than the diameter of the inlet / outlet hole but larger than the diameter of the positioning hole, and the outer diameter of the narrow neck is smaller than or equal to the diameter of the positioning hole.

3. The chair that is easy to disassemble and package according to claim 2, characterized in that: The positioning hole is an oblong hole, and the inlet / outlet hole is a round hole.

4. The chair that is easy to disassemble and package according to claim 2, characterized in that: Both the large head and the narrow neck are cylindrical.

5. The chair that is easy to disassemble and package according to claim 2, characterized in that: The large head is hemispherical, and the narrow neck is cylindrical.

6. The chair that is easy to disassemble and package according to claim 2, characterized in that: A protective sleeve is fitted on the lower part of the vertical arm, and the protective sleeve has a through hole that matches the quick-connect hole.

7. The chair that is easy to disassemble and package according to claim 1, characterized in that: A fixing rod is fixedly installed at the bottom front of the seat. Screw holes A that are compatible with hand-tightening screws A are provided at the center of the left and right ends of the fixing rod. Fixing sleeves that are compatible with the ends of the fixing rods are fixedly installed on the front support legs on both sides. The fixing sleeves are connected to the ends of the corresponding fixing rods by washers and hand-tightening screws A.

8. The chair that is easy to disassemble and package according to claim 1, characterized in that: On the left and right sides of the backrest, there are symmetrical fixed protrusions for connecting with the rear support legs. The center of the fixed protrusion is provided with a screw hole B that is compatible with the hand screw B. On the rear support leg, there is a screw through hole at the corresponding position of the fixed protrusion. The hand screw B passes through the screw through hole and connects with the screw hole B.

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