A backrest chair capable of compact packaging and easy disassembly

Abstract

The utility model discloses a back chair of realizing compact packing and easily dismounting, including chair seat body, back body, two back legs connecting body and a pair of left and right symmetrical handrails - front leg combination, two back legs connecting body is by two back legs and the connecting rod of connecting between two back legs constitute, the handrails - front leg combination is by handrail and front leg integral constitute, wherein: the front end both sides of chair seat body are respectively with corresponding side front leg detachable connection, and the rear end of chair seat body is with the connecting rod of two back legs connecting body detachable connection, and the rear part of left and right handrails is respectively with corresponding side back leg detachable connection, and the lower part of back body is detachable with the upper part of two back legs connects. The utility model discloses back chair's compact packing can not only obviously reduce packing volume, save storage space, improve the packing amount and reduce the warehousing cost and transportation cost, but also can obviously improve user's use portability, in addition still has simple structure, easily realizes batch etc.

Description

Technical Field

[0001] This utility model relates to a backrest chair that can be compactly packaged and easily disassembled, belonging to the field of furniture design technology. Background Technology

[0002] Chairs with backrests are common furniture items used in homes, leisure spaces, and offices. However, the production and sales of chairs inevitably involve packaging, warehousing, and transportation. Compact packaging for chairs would not only reduce packaging volume, save storage space, and increase packing capacity, significantly reducing warehousing and transportation costs, but also improve portability. For example, it would make moving easier and allow for convenient carrying for outdoor or camping use. However, existing chairs either suffer from excessively large packaging volumes and wasted storage space, or, while reducing packaging volume, have complex structures and cumbersome assembly and disassembly. Therefore, it is necessary to develop a chair with compact packaging and simple assembly / disassembly to meet the needs of low-cost warehousing, transportation, and portability. 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 backrest chair that can be compactly packaged and easily disassembled.

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

[0005] A compact and easily assembled / disassembled chair includes a seat, a backrest, two rear leg connectors, and a pair of symmetrical armrest-front leg connectors. The two rear leg connectors consist of two rear legs and a connecting rod between them. The armrest-front leg connectors are integrally formed by the armrests and the front legs. The front sides of the seat are detachably connected to the corresponding front legs, the rear end of the seat is detachably connected to the connecting rod in the two rear leg connectors, the rear parts of the left and right armrests are detachably connected to the corresponding rear legs, and the lower part of the backrest is detachably connected to the upper part of the two rear legs.

[0006] In one embodiment, the chair seat is composed of a fixed frame and a seat body. The fixed frame is formed by a front rod, a left rod, and a right rod fixedly connected together. Fixed ears for connecting to the front legs are fixed at the left and right ends of the front rod, and the rear ends of the left and right rods protrude beyond the rear end of the seat body.

[0007] In one embodiment, each side fixing lug is provided with an upper screw through hole a and a lower screw through hole a, and the inner side of each front leg is provided with an upper screw blind hole a corresponding to the upper screw through hole a and a lower screw blind hole a corresponding to the lower screw through hole a. By connecting the upper screw through hole a and the upper screw blind hole a on the same side with a screw A and connecting the lower screw through hole a and the lower screw blind hole a on the same side with another screw A, the front ends of the chair seat can be detachably connected to the corresponding front legs.

[0008] In one embodiment, a fixed protrusion A is provided on the front side of the connecting rod in the two rear leg connecting body, which corresponds to and can be nested with the rear ends of the left and right rods respectively. A screw through hole b is provided in the center of the fixed protrusion A. By first fitting the rear ends of the left and right rods into the corresponding fixed protrusion A respectively, and then connecting them to the screw through hole b by screw B, a detachable connection can be achieved between the rear end of the chair seat and the connecting rod in the two rear leg connecting body.

[0009] In one embodiment, a fixing protrusion B is provided on the inner side of the rear end of both the left and right armrests. The center of each fixing protrusion B is provided with a screw blind hole b. The upper part of each of the two rear legs is provided with a screw through hole c that communicates with the corresponding screw blind hole b. By connecting the screw through hole c and the screw blind hole b on the same side with a screw C, the rear part of the left and right armrests can be detachably connected to the corresponding rear leg.

[0010] In one embodiment, the backrest body includes a U-shaped frame with the opening facing downwards, wherein the lower ends of the two arms of the U-shaped frame are respectively sleeved with the upper ends of the corresponding rear legs and then connected with screws.

[0011] In one embodiment, the U-shaped frame is integrally formed by a rectangular square tube or a round tube. The upper end of the rear leg is provided with a socket that can be nested with the lower ends of the two side arms of the U-shaped frame. By first connecting the lower ends of the two side arms of the U-shaped frame with the corresponding sockets and then fixing them with screws D, a detachable connection can be achieved between the lower part of the backrest and the upper part of the two rear legs.

[0012] In a preferred embodiment, the backrest further includes a reinforcing rib, the upper end of which is fixedly connected to the top of the U-shaped frame, the lower end of which protrudes from the lower end of the U-shaped frame and extends downward to a position below the armrest but above the height of the connecting rod in the connecting body of the two rear legs, and a transverse connecting rod is fixedly provided at the lower end of the reinforcing rib, the two ends of which are respectively fixed to the corresponding parts of the rear legs by screws E.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0014] This utility model disassembles a chair into a seat, a backrest, two rear leg connectors, and a pair of symmetrical armrest-front leg connectors. The front sides of the seat are detachably connected to the corresponding front legs, the rear end of the seat is detachably connected to the connecting rods in the rear leg connectors, the rear parts of the left and right armrests are detachably connected to the corresponding rear legs, and the lower part of the backrest is detachably connected to the upper part of the two rear legs. This not only achieves detachable packaging of the chair but also allows for stacking and storage of the disassembled components, significantly reducing packaging volume and saving storage space. This compact packaging increases packing capacity and reduces warehousing and transportation costs. Furthermore, assembly and disassembly are very simple, requiring only the tightening or loosening of a few screws, significantly improving user portability. In addition, the chair of this utility model has advantages such as simple structure and ease of mass production. Therefore, this utility model is not only progressive but also has significant practical value. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a backrest chair that can be compactly packaged and easily disassembled, provided by an embodiment.

[0016] Figure 2 yes Figure 1 The diagram shows the structure of the chair with the backrest from another perspective.

[0017] Figure 3 yes Figure 1 The diagram shows the exploded structure of the chair with the backrest shown.

[0018] Figure 4 yes Figure 3 A structural diagram from another perspective;

[0019] Figure 5 This is a schematic diagram of the structure of the chair seat as described in the embodiment;

[0020] Figure 6 This is a schematic diagram of the armrest-front leg assembly described in the embodiment;

[0021] Figure 7 This is a schematic diagram of the structure of the two hind leg connectors described in the embodiment;

[0022] Figure 8 This is a schematic diagram of the backrest body described in the embodiment;

[0023] Figure 9 This is a diagram showing the stacked packaging of the chairs described in the embodiment;

[0024] Figure 10 yes Figure 9 A view of the stacked assembly from another perspective.

[0025] The labels in the diagram are as follows:

[0026] 1. Seat body; 1-1. Fixed frame; 1-11. Front end bar; 1-12. Left side bar; 1-13. Right side bar; 1-14. Fixed lug; 1-141. Upper screw through hole a; 1-142. Lower screw through hole a; 1-2. Seat body; 2. Backrest body; 2-1. U-shaped frame; 2-11. Side arms of the U-shaped frame; 2-12. Top of the U-shaped frame; 2-2. Reinforcing rib; 2-3. Transverse connecting rod; 3. Connector for both rear legs; 3-1 1. Rear leg; 3-11. Screw through hole c; 3-12. Socket joint; 3-2. Connecting rod; 3-21. Fixing protrusion A; 3-211. Screw through hole b; 4. Handrail-front leg assembly; 4-1. Handrail; 4-11. Fixing protrusion B; 4-111. Screw blind hole b; 4-2. Front leg; 4-21. Upper screw blind hole a; 4-22. Lower screw blind hole a; 5. Screw A; 6. Screw B; 7. Screw C; 8. Screw D; 9. Screw E. Detailed Implementation

[0027] 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.

[0028] Example

[0029] Please combine Figures 1 to 4 As shown, this embodiment provides a compact and easily detachable chair, including a seat body 1, a backrest body 2, two rear leg connecting bodies 3, and a pair of symmetrical armrest-front leg connecting bodies 4. The two rear leg connecting bodies 3 are composed of two rear legs 3-1 and a connecting rod 3-2 connecting the two rear legs 3-1. The armrest-front leg connecting bodies 4 are integrally formed by the armrest 4-1 and the front leg 4-2. The front ends of the seat body 1 are detachably connected to the corresponding front legs 4-2, the rear ends of the seat body 1 are detachably connected to the connecting rod 3-2 in the two rear leg connecting bodies 3, the rear parts of the left and right armrests 4-1 are detachably connected to the corresponding rear legs 3-1, and the lower part of the backrest body 2 is detachably connected to the upper part of the two rear legs 3-1.

[0030] Please see again. Figure 5As shown, in this embodiment, the chair seat 1 is composed of a fixed frame 1-1 and a seat body 1-2. The seat body 1-2 and the fixed frame 1-1 can be connected as one unit by welding, plugging, or screw fixing. The fixed frame 1-1 is formed by fixing the front end rod 1-11 to the left side rod 1-12 and the right side rod 1-13 (e.g., by welding or screw connection). Fixing ears 1-14 for connecting with the front legs are fixed at the left and right ends of the front end rod 1-11, and the rear ends of the left side rod 1-12 and the right side rod 1-13 both protrude beyond the rear end of the seat body 1-2.

[0031] Please combine Figures 1 to 6 As shown, each fixed ear 1-14 on each side is provided with an upper screw through hole a 1-141 and a lower screw through hole a 1-142. The inner side of each front leg 4-2 is provided with an upper screw blind hole a 4-21 corresponding to the upper screw through hole a 1-141 and a lower screw blind hole a 4-22 corresponding to the lower screw through hole a 1-142. By connecting the upper screw through hole a 1-141 and the upper screw blind hole a 4-21 on the same side with a screw A 5 and connecting the lower screw through hole a 1-142 and the lower screw blind hole a 4-22 on the same side with another screw A 5, the front ends of the seat body 1 and the corresponding front legs 4-2 can be detachably connected.

[0032] Please combine Figures 1 to 5 and Figure 7 As shown, in this embodiment, a fixed protrusion A 3-21 is provided on the front side of the connecting rod 3-2 in the two rear leg connecting body 3, which corresponds to and can be nested with the rear ends of the left rod 1-12 and the right rod 1-13 respectively. A screw through hole b 3-211 is provided in the center of the fixed protrusion A 3-21. By first connecting the rear ends of the left rod 1-12 and the right rod 1-13 to the corresponding fixed protrusion A 3-21 respectively, and then connecting the screw B 6 to the screw through hole b 3-211, a detachable connection can be achieved between the rear end of the chair seat body 1 and the connecting rod 3-2 in the two rear leg connecting body 3.

[0033] Please combine Figures 1 to 4 and Figure 6 and Figure 7 As shown, in this embodiment, a fixing protrusion B 4-11 is provided on the inner rear end of both the left and right armrests 4-1. The center of each fixing protrusion B 4-11 is provided with a screw blind hole b 4-111. The upper part of each of the two rear legs 3-1 is provided with a screw through hole c 3-11 that communicates with the corresponding screw blind hole b 4-111. By connecting the screw through hole c 3-11 and the screw blind hole b 4-111 on the same side with a screw C 7, the rear part of the left and right armrests 4-1 can be detachably connected to the corresponding rear leg 3-1.

[0034] Please combine Figures 1 to 4 and Figure 7 and Figure 8 As shown, in this embodiment, the backrest body 2 includes a U-shaped frame 2-1 with the opening facing downwards. The U-shaped frame 2-1 is integrally formed by a rectangular square tube (or a round tube, or a solid rectangular rod or round rod, etc.). (If it is a metal tube, it can be integrally formed by welding or screw connection; if it is a solid wooden rod, it can be integrally formed by screw connection or mortise and tenon connection, etc.) The upper end of the rear leg 3-1 is provided with a socket joint 3-12 that can be nested with the lower end square tube of the two side arms 2-11 of the U-shaped frame. By first connecting the lower ends of the two side arms 2-11 of the U-shaped frame with the corresponding socket joint 3-12, and then fixing them with screw D 8, the lower part of the backrest body 2 and the upper part of the two rear legs 3-1 can be detachably connected.

[0035] As a preferred embodiment, the backrest body 2 further includes a reinforcing rib 2-2. The upper end of the reinforcing rib 2-2 is fixedly connected to the upper top 2-12 of the U-shaped frame. The lower end of the reinforcing rib 2-2 protrudes from the lower end of the U-shaped frame 2-1 and extends downward to a height below the armrests but above the connecting rods 3-2 in the connecting bodies 3 of the two rear legs. Furthermore, a transverse connecting rod 2-3 is fixed to the lower end of the reinforcing rib 2-2, and both ends of the transverse connecting rod 2-3 are respectively fixed to the corresponding parts of the rear legs 3-1 by screws E9. This design enhances the strength and stability of the backrest body 2.

[0036] Then by Figure 3 As shown, the chair backrest of this utility model can be assembled or disassembled simply by screwing on or off screws A5, B6, C7, D8, and E9, making the assembly and disassembly operations very simple. Furthermore, the disassembled components—seat 1, backrest 2, two rear leg connectors 3, and a pair of symmetrical armrest-front leg connectors 4—can be stacked and stored together. For example, please refer to [link to relevant documentation]. Figure 9 As shown, the two symmetrical armrest-front leg joints 4 can be placed facing each other first, then the two rear leg connectors 3 can be placed in the cavity enclosed by the two armrest-front leg joints 4, then the seat body 1 can be stacked on top of the two rear leg connectors 3, and finally the backrest body 2 can be stacked on top of the seat body 1; obviously, this utility model can achieve a compact package of the chair (see...). Figure 9 and Figure 10 As shown in the figure, it can not only significantly reduce packaging volume, save storage space, increase packing volume and reduce warehousing and transportation costs, but also significantly improve user portability.

[0037] Furthermore, the chair with a backrest described in this utility model has the advantages of simple structure and easy mass production; therefore, this utility model is not only progressive, but also has significant practical value.

[0038] 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 backrest chair that can be compactly packaged and easily disassembled, characterized in that: The chair includes a seat, a backrest, two rear leg connectors, and a pair of symmetrical armrest-front leg connectors. The two rear leg connectors are composed of two rear legs and connecting rods connecting the two rear legs. The armrest-front leg connectors are integrally formed by the armrests and the front legs. Specifically, the front sides of the seat are detachably connected to the corresponding front legs, the rear ends of the seat are detachably connected to the connecting rods in the two rear leg connectors, the rear parts of the left and right armrests are detachably connected to the corresponding rear legs, and the lower part of the backrest is detachably connected to the upper part of the two rear legs.

2. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 1, characterized in that: The chair seat is composed of a fixed frame and a seat body. The fixed frame is formed by a front rod, a left rod, and a right rod that are fixedly connected together. Fixed ears for connecting to the front legs are fixed at the left and right ends of the front rod, and the rear ends of the left and right rods protrude beyond the rear end of the seat body.

3. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 2, characterized in that: Each fixed ear on each side is provided with an upper screw through hole a and a lower screw through hole a. On the inner side of each front leg, there is an upper screw blind hole a corresponding to the upper screw through hole a and a lower screw blind hole a corresponding to the lower screw through hole a. By connecting the upper screw through hole a and the upper screw blind hole a on the same side with a screw A and connecting the lower screw through hole a and the lower screw blind hole a on the same side with another screw A, the front sides of the chair seat can be detachably connected to the corresponding front legs.

4. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 2, characterized in that: The front side of the connecting rod in the two rear leg connector has a fixed protrusion A that corresponds to and can be nested with the rear ends of the left and right rods, respectively. A screw through hole b is provided in the center of the fixed protrusion A. By first fitting the rear ends of the left and right rods into the corresponding fixed protrusion A, and then connecting them to the screw through hole b with screw B, a detachable connection can be achieved between the rear end of the chair seat and the connecting rod in the two rear leg connector.

5. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 1, characterized in that: A fixed protrusion B is provided on the inner side of the rear end of both the left and right armrests. A screw blind hole b is provided in the center of each fixed protrusion B. A screw through hole c is provided on the upper part of each of the two rear legs, which is connected to the corresponding screw blind hole b. By connecting the screw through hole c and the screw blind hole b on the same side with a screw C, the rear part of the left and right armrests can be detachably connected to the corresponding rear legs.

6. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 1, characterized in that: The backrest includes a U-shaped frame with the opening facing downwards. The lower ends of the two arms of the U-shaped frame are respectively connected to the upper ends of the corresponding rear legs and then connected with screws.

7. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 6, characterized in that: The U-shaped frame is integrally formed by a rectangular square tube or a round tube. The upper end of the rear leg is provided with a socket that can be nested with the lower end of the two arms of the U-shaped frame. By first connecting the lower end of the two arms of the U-shaped frame with the corresponding socket, and then fixing it with screw D, the lower part of the backrest body and the upper part of the two rear legs can be detachably connected.

8. The backrest chair that can achieve compact packaging and easy assembly / disassembly according to claim 6, characterized in that: The backrest also includes a reinforcing rib. The upper end of the reinforcing rib is fixedly connected to the top of the U-shaped frame. The lower end of the reinforcing rib protrudes from the lower end of the U-shaped frame and extends downward to a position lower than the armrest but higher than the connecting rod in the connecting body of the two rear legs. Furthermore, a transverse connecting rod is fixed to the lower end of the reinforcing rib. The two ends of the transverse connecting rod are respectively fixed to the corresponding parts of the rear legs by screws E.

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