Backrest type folding chair combined structure

Abstract

The utility model discloses a backrest type folding chair combined structure which comprises a backrest, the lower end of the backrest is integrally connected with a connecting bolt, the lower end of the backrest is connected with a main body back part in an inserted mode through the connecting bolt, the rear portion of the upper end of the main body back part is provided with a connecting slot, and the front portion of the upper end of the main body back part is provided with a connecting rotating shaft. The front part of the upper end of the main body back part is connected with a sitting part through a connecting rotating shaft, connecting joints are arranged at the front end and the rear end of the sitting part, and a connecting part is arranged in the middle of the sitting part. According to the backrest type folding chair combined structure disclosed by the utility model, the main body back part, the main body left side part, the main body right side part and the main body front part which are connected with one another through the connecting rotating shafts and the connecting joints, so that the whole folding chair is of a modular structure, and when one part of the folding chair is damaged, only the part needs to be correspondingly replaced; the practicability of the folding chair is effectively improved and the later use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of folding chairs, in particular to a backrest type folding chair combination structure. Background Art

[0002] A folding chair is a chair that can be easily folded and unfolded. It can be easily stored when not in use to save space. It is often used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, homes, etc.

[0003] The existing folding chair cannot be disassembled, is not strong enough in actual use, and has poor practicality.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a backrest type folding chair combination structure is proposed. Utility Model Content

[0005] The utility model discloses a backrest type folding chair combined structure, aiming to solve the technical problems that the folding chair cannot be disassembled, has insufficient strength and poor practicality during actual use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A backrest type folding chair combination structure comprises a backrest, the lower end of the backrest is integrally connected with a connecting pin, the lower end of the backrest is plugged with a main body back component through the connecting pin, a connecting slot is opened at the rear upper end of the main body back component, a connecting shaft is arranged at the front upper end of the main body back component, the front upper end of the main body back component is connected with a sitting component through the connecting shaft, connecting joints are arranged at both the front and rear ends of the sitting component, a connecting piece is arranged at the middle of the sitting component, the left side of the main body back component is movably connected with the left side part of the main body, the right side of the main body back component is movably connected with the right side part of the main body, and a positioning block is integrally arranged at the top of the right side part of the main body.

[0008] The whole folding chair realizes a modular structure by connecting the main body back part, the main body left part, the main body right part and the main body front part which are mutually connected by the connecting shaft and the connecting joint.

[0009] In a preferred solution, the outer side of the connecting pin is attached to the inner side of the connecting slot, and three groups of the connecting pin and the connecting slot are provided.

[0010] The connecting pin arranged at the lower end of the backrest cooperates with the connecting slot arranged at the rear part of the upper end of the main body back component, so that the backrest and the main body back component can be quickly plugged in and out and connected.

[0011] In a preferred solution, the seat components are of a split structure, and the seat components are connected to each other via connectors;

[0012] In a preferred embodiment, the left side part of the main body and the right side part of the main body are connected to the seat part in the same structure;

[0013] In a preferred solution, positioning blocks are provided on the tops of the left side component of the main body and the right side component of the main body.

[0014] In a preferred solution, the main body back part, the main body left part, the main body right part and the main body front part are all connected to each other via connecting shafts and connecting joints.

[0015] The connecting shaft and the connecting joint are connected to each other so that the entire backrest type folding chair can achieve a modular structure, thereby improving the convenience and practicality of the entire folding chair.

[0016] As can be seen from the above, the backrest type folding chair combination structure has the following improvements and advantages compared with the prior art:

[0017] The main body back part, the main body left part, the main body right part and the main body front part are interconnected by connecting the rotating shaft and the connecting joints, so that the entire folding chair has a modular structure. When one part of the folding chair is damaged, only the corresponding part needs to be replaced, which effectively improves the practicality of the folding chair and reduces the later use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the overall exploded structure of the backrest type folding chair combination structure.

[0019] Figure 2 It is a schematic diagram of the exploded structure of the backrest and the back side of the main back component of the backrest type folding chair combination structure proposed by the utility model.

[0020] Figure 3 This is a schematic diagram of the exploded structure of the backrest and the main back component of the backrest type folding chair combination structure proposed by the utility model being plugged into each other frontally.

[0021] Figure 4 This is a schematic diagram of the front structure of the backrest of the backrest type folding chair combination structure proposed by the utility model.

[0022] Figure 5 The utility model discloses a backrest structure schematic diagram of the backrest type folding chair assembly structure.

[0023] Figure 6 This is a schematic diagram of the back structure of the main back component of the backrest type folding chair assembly structure proposed by the utility model.

[0024] Figure 7This is a front structural schematic diagram of the main back component of the backrest type folding chair assembly structure proposed by the utility model.

[0025] Figure 8 It is a schematic diagram of the exploded structure of the seat component and the right side component of the main body of the backrest type folding chair combined structure proposed by the utility model.

[0026] In the attached drawings: 1. backrest; 2. connecting pin; 3. main body back part; 4. connecting slot; 5. connecting shaft; 6. sitting part; 7. connecting joint; 8. connecting piece; 9. main body left part; 10. main body right part; 11. positioning block; 12. main body front part. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] The backrest type folding chair combination structure disclosed by the utility model is mainly used in the scenario where the folding chair cannot be disassembled, has insufficient strength during actual use, and has poor practicality.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The backrest type folding chair combination structure comprises a backrest 1, a connecting pin 2 is integrally connected to the lower end of the backrest 1, a main body back component 3 is plugged into the lower end of the backrest 1 through the connecting pin 2, a connecting slot 4 is opened at the rear of the upper end of the main body back component 3, a connecting shaft 5 is arranged at the front of the upper end of the main body back component 3, a sitting component 6 is connected to the front and rear ends of the sitting component 6 through the connecting shaft 5, connecting joints 7 are arranged at both ends of the sitting component 6, a connecting piece 8 is arranged in the middle of the sitting component 6, a left side of the main body back component 3 is movably connected to a left side of the main body component 9, a right side of the main body back component 3 is movably connected to a right side of the main body component 10, a positioning block 11 is integrally arranged on the top of the right side of the main body component 10, and the connection structure of the left side of the main body component 9 and the right side of the main body component 10 is consistent with that of the sitting component 6.

[0031] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 In a preferred embodiment, the outer side of the connecting pin 2 is attached to the inner side of the connecting slot 4, and three groups of the connecting pin 2 and the connecting slot 4 are provided.

[0032] Specifically, the backrest 1 and the main back component 3 are quickly spliced ​​together through the connecting pin 2 and the connecting slot 4. At the same time, the connecting pin 2 and the connecting slot 4 are matched with each other in size to ensure the stability of the connection between the backrest 1 and the main back component 3. The small protrusion provided on the outside of the connecting pin 2 can effectively prevent looseness due to up and down displacement of the connection.

[0033] Reference Figure 1 and Figure 8 In a preferred embodiment, the seat part 6 is a split structure, and the seat parts 6 are connected to each other through a connecting member 8, and the entire folding chair is spliced ​​and folded through the split structure.

[0034] Reference Figure 1 and Figure 8 In a preferred embodiment, the left side part 9 and the right side part 10 of the main body are connected in the same structure as the seat part 6. The front end of the seat part 6 is movably connected to the front part 12 of the main body. The movably connected front part 12 of the main body is easy to fold and reduces the later maintenance cost of the entire chair.

[0035] Reference Figure 1 and Figure 8 In a preferred embodiment, the main body back part 3, the main body left part 9, the main body right part 10 and the main body front part 12 are all connected to each other through the connecting shaft 5 and the connecting joint 7.

[0036] Specifically, the entire folding chair realizes a modular structure. When a component of the folding chair is damaged, only the corresponding component needs to be replaced, thereby effectively improving the practicality of the folding chair.

[0037] Working principle: When in use, first insert the connecting pin 2 at the lower end of the backrest 1 into the connecting slot 4 at the rear upper end of the main back component 3, so that the backrest 1 is plugged and connected to the main back component 3, and then the split sitting component 6, the left side component 9 of the main body and the right side component 10 are spliced ​​through the connecting piece 8 respectively to form a complete sitting component 6, the left side component 9 of the main body and the right side component 10 of the main body, and finally the sitting component 6, the left side component 9 of the main body, the right side component 10 of the main body and the front component 12 of the main body are connected to each other through the connecting shaft 5 and the connecting joint 7 to complete the combination splicing of the backrest type folding chair.

[0038] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited to them. The replacement can be a replacement of part of the structure, device, method steps, or a complete technical solution. Equivalent replacement or changes based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A backrest type folding chair assembly structure, comprising a backrest (1), characterized in that: The lower end of the backrest (1) is integrally connected with a connecting pin (2), the lower end of the backrest (1) is plugged with a main body back component (3) through the connecting pin (2), a connecting slot (4) is provided at the rear of the upper end of the main body back component (3), a connecting shaft (5) is provided at the front of the upper end of the main body back component (3), the upper front end of the main body back component (3) is connected with a sitting component (6) through the connecting shaft (5), the front and rear ends of the sitting component (6) are both provided with connecting joints (7), the middle part of the sitting component (6) is provided with a connecting piece (8), the left side of the main body back component (3) is movably connected with a main body left side component (9), the right side of the main body back component (3) is movably connected with a main body right side component (10), and a positioning block (11) is integrally provided at the top of the main body right side component (10).

2. The backrest type folding chair assembly structure according to claim 1, characterized in that: The outer side of the connecting pin (2) is fitted to the inner side of the connecting slot (4), and three groups of the connecting pin (2) and the connecting slot (4) are provided.

3. The backrest type folding chair assembly structure according to claim 1, characterized in that: The seat components (6) are of a split structure, and the seat components (6) are connected to each other via a connecting piece (8).

4. The backrest type folding chair assembly structure according to claim 1, characterized in that: The connection structure of the left side part (9) of the main body and the right side part (10) of the main body is consistent with that of the seat part (6).

5. The backrest type folding chair assembly structure according to claim 1, characterized in that: Positioning blocks (11) are provided on the tops of the left side part (9) and the right side part (10) of the main body.

6. The backrest type folding chair assembly structure according to claim 1, characterized in that: The front end of the seat component (6) is movably connected to the main body front component (12).

7. The backrest type folding chair assembly structure according to claim 1, characterized in that: The main body back part (3), the main body left side part (9), the main body right side part (10) and the main body front part (12) are all connected to each other via a connecting shaft (5) and a connecting joint (7).

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