Iron chair quick connecting structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of household chairs, in particular to an iron chair quick connecting structure convenient to disassemble and assemble. Comprising a chair back leaning frame, a chair seat frame and a chair leg frame, the chair back leaning frame and the chair seat frame are connected with the chair leg frame in an inserted mode, a first plug is welded to the side edge of the chair seat frame, a second plug is welded to the side edge of the chair back leaning frame, and a second plug bush is welded to the position, horizontal to the chair back leaning frame, of the front face of the chair leg frame. According to the structure, the chair seat can be disassembled and spliced respectively, so that the carrying and mounting efficiency is improved, the transportation cost is reduced, and the transportation volume is effectively reduced. The disassembly and assembly mode is simple and convenient, labor can be saved, meanwhile, acting force generated when a user sits is effectively dispersed, and stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses a household chair technology field, especially a kind of iron chair class quick connection structure convenient to disassemble. BACKGROUND

[0002] As a common furniture, chairs are designed in different styles according to their use scenarios. Currently, chairs on the market are usually assembled before leaving the factory. This fixed connection structure is not easy to disassemble, resulting in a large packaging volume, inconvenient transportation and high cost. These additional costs are passed on to consumers by manufacturers, making the price of chairs relatively high. In addition, retailers need to rent large warehouses to maintain adequate inventory, further increasing warehousing costs. In summary, the current non-detachable nature of chairs after leaving the factory not only increases the production and logistics costs of manufacturers, but also increases the warehousing burden of distributors. Ultimately, these costs are borne by consumers, which poses a significant economic pressure on producers, sellers and consumers. Therefore, it is necessary to optimize and innovate the current limitations of chairs.

[0003] Currently, fasteners are commonly used in existing technologies to achieve installation. For example, Chinese patent CN220832412U allows the chair surface, backrest, etc. to be disassembled, but there are many bolts, which are difficult to install and easy to lose. Therefore, the disassembly mode is improved in this application. SUMMARY

[0004] (I) Problem to be solved

[0005] It is mainly used to solve the problem of chair disassembly and installation of many parts, and provides a quick connection structure of iron chair convenient to disassemble.

[0006] (II) Technical solution

[0007] The utility model discloses a quick connection structure of iron chair convenient to disassemble, which comprises a backrest frame, a seat frame and a chair leg frame. The backrest frame and the seat frame are respectively inserted with the chair leg frame. The side edge of the seat frame is welded with a first plug, and the side edge of the backrest frame is welded with a second plug. The front surface of the chair leg frame is welded with a second plug sleeve at the position horizontally to the backrest frame, and a first plug sleeve is welded at the position horizontally to the seat frame.

[0008] As a preferred technical solution, the first plug comprises a recessed portion in the middle and a circular arc portion with both ends inwardly rolled, which is integrally formed with the recessed portion.

[0009] As a preferred technical solution, the first plug sleeve comprises a connecting portion in the middle and a circular arc wrapping portion with both ends inwardly rolled, which is integrally formed. The circular arc wrapping portion is slightly larger than the circular arc portion of the first plug. The first plug sleeve is integrally formed with a base at the bottom. The base is inwardly and upwardly rolled and wraps the first plug. The recessed portion is provided with a connecting hole, which is connected with the seat frame by bolts.

[0010] As a preferred technical scheme, the chair seat frame is arc-shaped as a whole, and comprises an upper chair seat frame and a lower chair seat frame, and the upper chair seat frame and the lower chair seat frame are welded through a support frame.

[0011] As a preferred technical scheme, the second plug is trapezoidal, and the welding position is shorter than the plug-in position of the second plug sleeve.

[0012] As a preferred technical scheme, the second plug sleeve is inverted trapezoidal and has an open front end, the second plug sleeve is provided with a positioning hole, and a positioning pin is installed opposite the second plug.

[0013] As a preferred technical scheme, the chair leg frame has three.

[0014] (Three) beneficial effects

[0015] The beneficial effects of the utility model lie in:

[0016] 1. The chair back frame, the chair seat frame and the chair leg frame can be respectively disassembled and spliced, the efficiency of carrying and installation is improved, the transportation cost is reduced, the transportation volume is effectively reduced, the disassembly and assembly mode is simple and convenient, and the labor can be saved.

[0017] 2. The first plug and the first plug sleeve are connected with the chair seat frame and the chair leg frame, the stress is mainly downward gravity, the connecting surface is arc-shaped, the stress can be effectively dispersed, and the connection stress between the chair seat frame and the chair leg frame is guaranteed. The bottom of the first plug sleeve is integrally formed with a base, can wrap the first plug, effectively bear the downward gravity, and improve the stability.

[0018] 3. The second plug and the second plug sleeve are connected with the chair back frame and the chair leg frame, the stress is mainly the backrest force of the seat back, the stress area of the connecting surface is increased, the backrest force in the back direction when the chair back is leaned again can be effectively dispersed, and the stability is improved.

[0019] 4. The connecting hole in the recessed part can adjust the height of the first plug, fine tune the chair seat frame, and adjust the actual height of the seat. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0021] Figure 1 It is the overall structure schematic view of the utility model;

[0022] Figure 2 is the connection diagram of the chair seat frame and the chair leg frame of the utility model;

[0023] Figure 3 is the connection diagram of the chair back frame and the chair leg frame of the utility model;

[0024] Figure 4 is the schematic diagram of the first plug and the first plug sleeve of the utility model;

[0025] Figure 5 is the schematic diagram of the first plug and the first plug sleeve of the utility model;

[0026] 1-chair back frame; 11-second plug; 12-positioning pin; 2-chair seat frame; 21-upper chair seat frame; 22-lower chair seat frame; 23-support frame; 24-first plug; 241-recessed part; 242-circular arc part; 3-chair leg frame; 31-first plug sleeve; 311-connection part; 312-circular arc wrapping part; 313-base; 32-second plug sleeve. DETAILED DESCRIPTION

[0027] The utility model discloses a kind of iron chair class quick connection structure of easy disassembly and assembly, which is further described in combination with drawings.

[0028] As shown in the accompanying Figure 1 It is a kind of iron chair class quick connection structure of easy disassembly and assembly, including chair back frame 1, chair seat frame 2 and chair leg frame 3, chair back frame 1 and chair seat frame 2 are respectively inserted with chair leg frame 3, first plug 24 is welded on the side of chair seat frame 2, second plug 11 is welded on the side of chair back frame 1, second plug sleeve 32 is welded on the position of the front of chair leg frame 3 horizontally with chair back frame 1, first plug sleeve 31 is welded on the position of chair seat frame 2 horizontally.

[0029] As shown in the accompanying Figure 2 , 4 ,

[0030] Further, the first plug sleeve 31 comprises a middle connecting part 311 and an arc wrapping part 312 integrally formed with both ends inwardly rolled, the arc wrapping part 312 is slightly larger than the arc part 242 of the first plug 24, and the force acting on it is mainly downward gravity, therefore, the connecting surface thereof is arc-shaped, which can effectively disperse the force and ensure the connection between the chair seat frame 2 and the chair leg frame 3. The bottom of the first plug sleeve 31 is integrally formed with a base 313, the base 313 is inwardly and upwardly rolled and wraps the first plug 24, and the bottom of the first plug sleeve 31 is integrally formed with the base 313, which can wrap the first plug 24 and effectively bear the downward gravity, thereby improving the stability. The recessed part 241 is provided with a connecting hole, which is bolted with the chair seat frame 2. The height of the first plug 24 can be adjusted, the chair seat frame 2 can be finely adjusted, and the actual use height of the seat can be adjusted.

[0031] Further, the chair seat frame 2 is arc-shaped as a whole and comprises an upper chair seat frame 21 and a lower chair seat frame 22, and the upper chair seat frame 21 and the lower chair seat frame 22 are welded through a support frame 23.

[0032] As shown in the accompanying drawings, Figure 3 Further, the second plug 11 is trapezoidal, and the welding part is shorter than the plug-in part of the second plug sleeve 32.

[0033] Further, the second plug sleeve 32 is inverted trapezoidal and has an open front end, and the second plug sleeve 32 is provided with a positioning hole, and the positioning pin 12 is installed opposite to the second plug 11. The force acting on it is mainly the backward force of the seat when it is reclined, therefore, the force acting area of the trapezoidal connecting surface is increased, which can effectively disperse the backward force when the chair back is reclined, thereby improving the stability.

[0034] Further, the chair leg frame 3 has three.

[0035] The working principle of the utility model is as follows: firstly, the chair leg frame 3 is placed vertically at three points, the first plug sleeve 31 and the second plug sleeve 32 are inward, and the positions of the first plug 24 of the chair seat frame 2 and the second plug 11 of the chair back frame 1 are opposite. When used for the first time, the height position between the chair seat frame 2 and the first plug 24 needs to be adjusted to the appropriate position and bolted. When installing, the chair seat frame 2 is pushed to the middle and lower part of the chair leg frame 3, the arc part 242 of the first plug 24 is inserted into the arc wrapping part 312 of the first plug sleeve 31, and the chair seat frame 2 is pushed to the bottom by using the downward force until the bottom of the first plug 24 contacts the base 313 and the first plug 24 is supported by the base 313, then the installation of the chair seat frame 2 is completed; the chair back frame 1 is inserted into the chair leg frame 3 in the same way, the second plug 11 is inserted into the second plug sleeve 32, and the quick installation of the iron chair is completed.

[0036] The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the design concept and scope of the present application. Without departing from the design concept of the present application, various modifications and improvements to the technical solution of the present application made by those of ordinary skill in the art shall fall within the protection scope of the present application. The technical content claimed by the present application has been entirely recorded in the claims.

Claims

1. A quick-connect structure for iron chairs that is easy to assemble and disassemble, comprising a chair back frame (1), a chair seat frame (2) and a chair leg frame (3), characterized in that: The chair backrest frame (1) and the seat frame (2) are respectively plugged into the chair leg frame (3); a first plug (24) is welded to the side of the seat frame (2); a second plug (11) is welded to the side of the chair backrest frame (1); a second socket (32) is welded to the front of the chair leg frame (3) at a position horizontal to the chair backrest frame (1); and a first socket (31) is welded to the front of the chair leg frame (3) at a position horizontal to the chair backrest frame (1).

2. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 1, characterized in that: The first plug (24) comprises a recessed portion (241) in the middle, and an arc portion (242) integrally formed with the recessed portion (241) and having both ends rolled inward.

3. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 2, characterized in that: The first socket (31) includes a middle connecting portion (311) and an integrally formed arc-wrapped portion (312) with both ends rolled inwards, the arc-wrapped portion (312) being slightly larger than the arc portion (242) of the first plug (24), a base (313) being integrally formed at the bottom of the first socket (31), the base (313) being rolled inwards and upwards and wrapping the first plug (24), the recessed portion (241) being provided with a connecting hole and being bolted to the seat frame (2).

4. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 1, characterized in that: The seat frame (2) is arc-shaped as a whole, and comprises an upper seat frame (21) and a lower seat frame (22). The upper seat frame (21) and the lower seat frame (22) are welded via a support frame (23).

5. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 1, characterized in that: The second plug (11) is trapezoidal in shape, and the welding portion is shorter than the plugging portion of the second socket (32).

6. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 5, characterized in that: The second socket (32) is in an inverted trapezoidal shape and has an open front end. A positioning hole is provided at the second socket (32), and a positioning pin (12) is installed opposite to the second plug (11).

7. The quick-connect structure for iron chairs that is easy to assemble and disassemble according to claim 1, characterized in that: There are three chair leg frames (3).

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