Chair

Abstract

The utility model relates to the field of chairs, in particular to a chair consisting of pipes and chair cloth. The chair comprises a chair frame and chair cloth, the chair cloth is mounted on the chair frame; the chair frame comprises two side frames, two end pipe assemblies, two reinforced limiting pipes and a plurality of connecting pipes; the two ends of the connecting pipe are connected to the two side frames in a bolt connection mode. Side frame inserting ends are arranged on the two sides of the side frame; side frame inserting ends are arranged at the two ends of the end pipe assembly; the side frame inserting ends and the side frame inserting ends are connected in an inserting mode so that the two ends of each end pipe assembly can be connected with the two side frames correspondingly. The cloth cover has the advantages that the perimeter of the cloth cover can be reduced, and the problem of looseness caused by the fact that the perimeter of the cloth cover is long is solved. And through the arrangement of the reinforcing limiting pipe, the two end pipe fittings can be locked through bolts, and separation of the inserting positions is avoided. Lock pins do not need to be arranged at the inserting positions of the side frames and the end pipe assemblies. The reinforcing limiting pipe supports the end pipe assembly from the middle, and the bearing capacity of the end pipe assembly is increased.

Description

Technical Field

[0001] The utility model relates to the field of chairs, in particular to a chair composed of pipes and chair cloths. Background Art

[0002] A chair is a living tool for people to rest. Traditional chairs are constructed of tubing and fabric. Fabric covers are typically placed at both ends of the fabric, which are then placed over the tubing to secure the fabric. The tubing often features curved ends to facilitate insertion and connection to the rest of the chair frame. In this case, the cover requires a large circumference to facilitate insertion through the curved ends onto the tubing. However, this method results in a loose fit.

[0003] Furthermore, to prevent the user from pulling on the tubing that holds the fabric cover to move the chair and causing it to separate at the insertion point, a locking pin is typically added to the tubing joint. This locking pin is relatively complex to install on the production line, as it bears the shear force when lifting the chair, requiring a high level of strength. Utility Model Content

[0004] The purpose of the present invention is to provide a chair to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A chair comprising: a chair frame and a chair fabric; the chair fabric being mounted to the chair frame; the chair frame comprising: two side frames, two end tube assemblies, two reinforcing limit tubes, and a plurality of connecting tubes; the ends of the connecting tubes being connected to the two side frames by bolts; side frame plug-in ends being provided on both sides of the side frames; side frame plug-in ends being provided at both ends of the end tube assemblies; the side frame plug-in ends and the side frame plug-in ends being plug-connected so that the ends of each end tube assembly are respectively connected to the two side frames;

[0007] The end tube assembly includes: two end tube fittings; the end tube fittings include: an integrally formed transverse tube portion and a bent tube portion; the transverse tube portions of the two end tube fittings are respectively provided with an end tube insertion end and an end tube plugging end; the end tube insertion end and the end tube plugging end are plug-connected; the one with the smaller inner diameter between the end tube insertion end and the end tube plugging end is defined as the inner tube; the one with the larger inner diameter between the end tube insertion end and the end tube plugging end is positioned as the outer tube; the outer tube is formed with an outer tube through hole; the inner tube is provided with a plunger; the plunger is formed with a threaded hole; the inner tube is inserted into the outer tube, and the threaded hole is aligned with the outer tube through hole; cloth cover structures are provided at both ends of the chair cloth; the two cloth cover structures are respectively sleeved onto the two end tube assemblies;

[0008] The two ends of the reinforced limit tube are fixed to the end tube assembly and the connecting tube by bolt connection respectively; pressure plates are provided at both ends of the reinforced limit tube; the bolts on the fixed end tube assembly and the reinforced limit tube pass through the pressure plate, chair cloth, and outer tube through-hole to form a threaded connection with the threaded hole.

[0009] As a further solution of the present invention: the side frame includes: an upper tube, a front leg tube and a rear leg tube; the top of the front leg tube is welded to the upper tube; the rear leg tube is bent into a V shape, one end of the rear leg tube is welded to the upper tube, and the other end of the rear leg tube is welded to the front leg tube.

[0010] As a further solution of the present invention: a foot pad for leveling is provided at the V-shaped intersection of the rear leg tubes; a screw is provided on the foot pad, which is bolted to the rear leg tubes.

[0011] As a further solution of the present invention: the chair cloth is provided with a chair cloth hole aligned with the threaded hole.

[0012] As a further solution of the present invention: there are two connecting tubes; one of the two connecting tubes is connected to the front leg tube; and the other of the two connecting tubes is connected to the rear leg tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the end tube assembly is composed of two end tube fittings that are plugged in, and the cloth cover structure can be installed without going through the bent tube portion of the end tube assembly, thereby reducing the circumference of the cloth cover, making the chair cloth and the end tube assembly more tightly combined, avoiding the looseness problem caused by the long circumference of the cloth cover.

[0014] The reinforced stop tube allows the two end tubes to be locked with bolts, preventing separation at the connection point. Furthermore, when the chair is lifted via the end tube assembly, the reinforced stop tube transfers the force between the end tube assembly and the side frame, eliminating the need for a locking pin at the connection between the side frame and the end tube assembly. Because the weight of the human body, transmitted by the chair fabric, is directly transferred to the end tube assembly, the reinforced stop tube supports the end tube assembly from the center, increasing its bearing capacity.

[0015] The upper pressure plate of the strengthening limit tube presses the tube portion, and further prevents the movement of the chair fabric relative to the end tube assembly.

[0016] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of a chair of the present invention;

[0018] Figure 2 yes Figure 1 A plan view of a chair;

[0019] Figure 3 yes Figure 1 A schematic diagram of a chair frame of a chair;

[0020] Figure 4 yes Figure 3 Exploded view of the middle chair frame;

[0021] Figure 5 yes Figure 4 A partial enlarged view of the structure.

[0022] List of accompanying drawings: chair 100, chair frame 10, side frame 11, upper tube 111, side frame plug-in end 1111, front leg tube 112, rear leg tube 113, foot pad 1131, end tube assembly 12, end tube fitting 121, transverse tube portion 1211, bent tube portion 1212, side frame plug-in end 1213, end tube plug-in end 1214, end tube plug-in end 1215, outer tube through hole 1216, plunger 1217, threaded hole 1218, reinforced limiting tube 13, pressure plate 131, connecting tube 14, chair cloth 20, cloth cover structure 21. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a chair 100 includes: a chair frame 10 and a chair cloth 20. The chair cloth 20 is installed to the chair frame 10. The chair frame 10 includes: two side frames 11, two end tube assemblies 12, two reinforced limit tubes 13 and a plurality of connecting tubes 14. Both ends of the connecting tube 14 are connected to the two side frames 11 by bolt connection. Side frame plug-in ends 1111 are provided on both sides of the side frame 11. Side frame plug-in ends 1213 are provided at both ends of the end tube assembly 12. The side frame plug-in ends 1111 and the side frame plug-in ends 1213 are plug-in connected so that the two ends of each end tube assembly 12 are respectively connected to the two side frames 11.

[0025] The end pipe assembly 12 includes: two end pipe fittings 121. The end pipe fittings 121 include: a transverse pipe portion 1211 and a bent pipe portion 1212. The transverse pipe portion 1211 and the bent pipe portion 1212 are integrally formed. The transverse pipe portions 1211 of the two end pipe fittings 121 are respectively provided with an end pipe insertion end 1214 and an end pipe plug-in end 1215. The end pipe insertion end 1214 and the end pipe plug-in end 1215 are plug-in connected. The one with the smaller inner diameter of the end pipe insertion end 1214 and the end pipe plug-in end 1215 is defined as the inner pipe. The one with the larger inner diameter of the end pipe insertion end 1214 and the end pipe plug-in end 1215 is positioned as the outer pipe. The outer pipe is formed with an outer pipe through hole 1216. The inner pipe is provided with a plunger 1217. Specifically, the plunger 1217 is mounted to the inner pipe by welding. The plunger 1217 is formed with a threaded hole 1218. The inner tube is inserted into the outer tube, and the threaded hole 1218 is aligned with the outer tube through hole 1216. The two ends of the chair fabric 20 are provided with a fabric cover structure 21. The two fabric cover structures 21 are respectively sleeved on the two end tube components 12.

[0026] The ends of the reinforcing stopper tube 13 are bolted to the end tube assembly 12 and the connecting tube 14, respectively. A pressure plate 131 is provided at each end of the reinforcing stopper tube 13. Bolts securing the end tube assembly 12 and reinforcing stopper tube 13 pass through pressure plates 131, the chair fabric 20, and outer tube through-holes 1216, forming a threaded connection with threaded holes 1218.

[0027] The pressure plate 131 is provided with pressure plate holes for the bolts to pass through. The seat fabric 20 can be pre-processed with seat fabric holes, or the user can punch holes during installation. The user punching method during installation eliminates the need to align the seat fabric holes.

[0028] Specifically, pressure plates are also provided at both ends of the connecting pipe 14. Pressure plate holes are provided on the pressure plates for bolts to pass through.

[0029] The side frames 11 are also provided with plungers. The plungers are welded to the side frames. Bolts pass through the pressure plate holes and mate with the bolt holes on the plungers, thereby connecting the two ends of the connecting pipe 14 to the two side frames 11 through bolt connections.

[0030] In a specific embodiment, the side frame 11 includes an upper tube 111, a front leg tube 112, and a rear leg tube 113. The top of the front leg tube 112 is welded to the upper tube 111. The rear leg tube 113 is bent into a V-shape, with one end welded to the upper tube 111 and the other end welded to the front leg tube 112.

[0031] As a specific embodiment, a foot pad 1131 is provided at the V-shaped intersection of the rear leg tube 113. The foot pad 1131 is used for leveling. A screw is provided on the foot pad 1131 and is bolted to the rear leg tube 113.

[0032] As a specific embodiment, the chair cloth 20 is provided with a chair cloth hole, which is aligned with the threaded hole 1218 .

[0033] As a specific embodiment, there are two connecting tubes 14 , one of which is connected to the front leg tube 112 , and the other of which is connected to the rear leg tube 113 .

[0034] The end tube assembly 12 is composed of two end tube pieces 121 that are plugged together. The cloth cover structure 21 can be installed without passing through the bent tube portion 1212 of the end tube assembly 12, thereby reducing the circumference of the cloth cover and making the chair cloth 20 more tightly combined with the end tube assembly 12, avoiding the looseness problem caused by the longer circumference of the cloth cover.

[0035] The provision of the reinforced stopper tube 13 allows the two end tubes 121 to be locked with bolts, preventing separation at the plug-in location. Furthermore, when the chair 100 is lifted using the end tube assembly 12, the reinforced stopper tube 13 transmits the force between the end tube assembly 12 and the side frame 11, eliminating the need for a locking pin at the connection between the side frame 11 and the end tube assembly 12. Because the weight of the human body transmitted by the chair fabric is directly transmitted to the end tube assembly 12, the reinforced stopper tube 13 supports the end tube assembly 2 from the center, increasing the bearing capacity of the end tube assembly 12.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A chair (100), comprising: Chair frame (10) and chair fabric (20); The chair cloth (20) is mounted on the chair frame (10); the chair frame (10) is characterized in that the chair frame (10) comprises: two side frames (11), two end tube assemblies (12), two reinforced limit tubes (13) and a plurality of connecting tubes (14); the two ends of the connecting tube (14) are connected to the two side frames (11) by bolt connection; both sides of the side frame (11) are provided with side frame plug-in ends (1111); the two ends of the end tube assembly (12) are provided with side frame plug-in ends (1213); the side frame plug-in ends (1111) and the side frame plug-in ends (1213) are plug-in connected so that the two ends of each end tube assembly (12) are respectively connected to the two side frames (11); The end pipe assembly (12) comprises: two end pipe fittings (121); the end pipe fittings (121) comprise: an integrally formed transverse pipe portion (1211) and a bent pipe portion (1212); the transverse pipe portions (1211) of the two end pipe fittings (121) are respectively provided with an end pipe inserting end (1214) and an end pipe plugging end (1215); the end pipe inserting end (1214) and the end pipe plugging end (1215) are plug-connected; the one with the smaller inner diameter between the end pipe inserting end (1214) and the end pipe plugging end (1215) is defined as an inner pipe; The one with the larger inner diameter between the end tube insertion end (1214) and the end tube plug-in end (1215) is positioned as the outer tube; the outer tube is formed with an outer tube through hole (1216); the inner tube is provided with a plunger (1217); the plunger (1217) is formed with a threaded hole (1218); the inner tube is inserted into the outer tube, and the threaded hole (1218) is aligned with the outer tube through hole (1216); cloth cover structures (21) are provided at both ends of the chair cloth (20); the two cloth cover structures (21) are respectively sleeved onto the two end tube assemblies (12); The two ends of the reinforced limiting tube (13) are fixed to the end tube assembly (12) and the connecting tube (14) respectively by bolt connection; both ends of the reinforced limiting tube (13) are provided with a pressure plate (131); the bolts fixing the end tube assembly (12) and the reinforced limiting tube (13) pass through the pressure plate (131), the chair cloth (20), the outer tube through hole (1216), and form a threaded connection with the threaded hole (1218).

2. A chair (100) according to claim 1, characterized in that: The side frame (11) comprises: an upper tube (111), a front leg tube (112) and a rear leg tube (113); the top of the front leg tube (112) is welded to the upper tube (111); the rear leg tube (113) is bent into a V-shape, one end of the rear leg tube (113) is welded to the upper tube (111), and the other end of the rear leg tube (113) is welded to the front leg tube (112).

3. A chair (100) according to claim 2, characterized in that: A foot pad (1131) for leveling is provided at the V-shaped intersection of the rear leg tube (113); a screw is provided on the foot pad (1131) and is bolted to the rear leg tube (113).

4. The chair (100) according to claim 1, characterized in that: The chair cloth (20) is provided with a chair cloth hole aligned with the threaded hole (1218).

5. The chair (100) according to claim 2, characterized in that: There are two connecting tubes (14); one of the two connecting tubes (14) is connected to the front leg tube (112); and the other of the two connecting tubes (14) is connected to the rear leg tube (113).

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