Seat reliable in connection

Abstract

The utility model belongs to the field of furniture, and discloses a reliably connected chair, which comprises a steel pipe chair frame, a seat plate and a backrest, the seat plate and the backrest are arranged on the steel pipe chair frame, the rear side of the upper end of the steel pipe chair frame is horizontally bent to form a convex pipe part, the convex pipe part forms a notch, a reinforcing sheet is fixedly arranged in the notch, and the reinforcing sheet is fixedly connected with the steel pipe chair frame. The lower end of the backrest is provided with a backrest horizontal part, the backrest horizontal part is clamped between the steel pipe chair frame and the seat plate, the bottom of the backrest horizontal part is provided with a groove part, the groove part is buckled with the protruding pipe part of the steel pipe chair frame and the reinforcing sheet, and the reinforcing sheet is connected with the groove part of the backrest and the seat plate through fasteners. The bottom of the backrest is pressed by the steel pipe chair frame, so that the overall strength of the backrest is enhanced, the backrest is prevented from loosening, and the use safety of people is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a seat with reliable connection. Background Art

[0002] With the development of the times, leisure chairs for leisure and negotiation have gradually entered people's field of vision. People not only require leisure chairs to bring relaxation and comfort, but also have higher requirements for the aesthetic appearance and stability of the chairs, and safety factors are highly considered. At the same time, the convenience of installation is also very high, including the simplification of accessories, etc. At present, most leisure chairs on the market are a combination of plastic backrests and steel pipe chair frames or bentwood backrests and steel pipe chair frames, but there are some defects that cannot be avoided: ① Because the seat plate and the backrest are made of the same material, the backrest and the seat plate can only be the same color, and color separation cannot be done, and the appearance diversity is limited; ② Some chairs use a combination of plastic backrest + bentwood seat plate, but considering that the backrest is subjected to greater force, a relatively thick iron plate needs to be welded to the bottom of the steel frame, so the processing cost is relatively high, and because most chair frames are curved, it is difficult to ensure the accuracy of welding, which brings great difficulties and troubles to the installation of the chair. Utility Model Content

[0003] The purpose of the utility model is to provide a seat with reliable connection to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A chair with reliable connection comprises a steel tube chair frame, a seat plate and a backrest arranged on the steel tube chair frame, wherein the rear side of the upper end of the steel tube chair frame is horizontally bent to form a protruding tube portion, the protruding tube portion forms a recess, a reinforcing plate is fixedly arranged in the recess, the lower end of the backrest has a backrest horizontal portion, the backrest horizontal portion is clamped between the steel tube chair frame and the seat plate, a groove portion is arranged at the bottom, the groove portion is engaged with the protruding tube portion and the reinforcing plate of the steel tube chair frame, and the reinforcing plate is connected to the groove portion of the backrest and the seat plate through fasteners.

[0006] Furthermore, the groove portion has a tubular groove, the width of the tubular groove matches the diameter of the steel pipe in the steel pipe chair frame, and the tubular groove is buckled with the protruding tube portion of the steel pipe chair frame.

[0007] Further, the protruding tube portion is a V-shaped structure, the reinforcing sheet is a triangular structure corresponding to the protruding tube portion, and the groove portion is a triangular structure corresponding to the protruding tube portion and the reinforcing sheet.

[0008] Furthermore, the steel tube chair frame includes two front and rear U-shaped tubes and a transverse tube connected between the upper ends of the front and rear U-shaped tubes.

[0009] Furthermore, the cross tube is connected to the seat plate via fasteners.

[0010] Furthermore, the backrest is a plastic backrest.

[0011] Furthermore, the seat plate is a bent wood seat plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The steel pipe chair frame presses the bottom of the backrest to strengthen the overall strength of the backrest, prevent the backrest from loosening, and ensure the safety of people;

[0014] 2) There is a groove at the bottom of the backrest, which can effectively locate the connection holes of the steel pipe chair frame and the seat plate through the buckle connection of the protruding pipe part, making it convenient and quick to install;

[0015] 3) The backrest and seat panel adopt a split structure, which can better match the colors and make the seat look rich and diverse;

[0016] 4) The steel pipe chair frame is easy to process and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] Figure 4 This is a schematic diagram of the steel tube chair frame structure in the utility model.

[0021] In the figure: a steel pipe chair frame 1, a protruding pipe portion 100, a notch 101, a U-shaped pipe 102, a transverse pipe 103, a seat plate 2, a backrest 3, a horizontal backrest portion 300, a groove portion 301, a tubular groove 302, and a reinforcing sheet 4. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4A chair with reliable connection includes a steel tube chair frame 1, a seat plate 2 and a backrest 3 arranged on the steel tube chair frame 1, the upper rear side of the steel tube chair frame 1 is horizontally bent to form a protruding tube portion 100, the protruding tube portion 100 forms a recess 101, a reinforcing sheet 4 is fixedly arranged in the recess 101, the reinforcing sheet 4 is an iron sheet, the lower end of the backrest 3 has a backrest horizontal portion 300, the backrest horizontal portion 300 is clamped between the steel tube chair frame 1 and the seat plate 2, and a groove portion 301 is arranged at the bottom thereof, the groove portion 301 is buckled with the protruding tube portion 100 and the reinforcing sheet 4 of the steel tube chair frame 1, and the reinforcing sheet 4 is connected to the groove portion 301 of the backrest 3 and the seat plate 2 through fasteners.

[0024] Continue reading Figure 4 The steel pipe chair frame 1 includes two front and rear U-shaped tubes 102 and two transverse tubes 103 connected between the upper ends of the front and rear U-shaped tubes 102. The transverse tubes 103 are connected to the seat plate 2 by fasteners.

[0025] Continue reading Figure 2 In one embodiment of the utility model, a tubular groove 302 is provided at the connection between the groove portion 301 and the main body of the horizontal portion 300 of the backrest, the width of the tubular groove 302 matches the diameter of the steel pipe in the steel pipe chair frame 1, and the shapes of the two also match, the tubular groove 302 is engaged with the protruding tube portion 100 of the steel pipe chair frame 1, and the rest of the groove portion 301 is engaged with the reinforcing plate 4.

[0026] Continue reading Figure 2 In one embodiment of the utility model, the protruding tube portion 100 is a V-shaped structure, the reinforcing sheet 4 is a triangular structure corresponding to the protruding tube portion 100, the groove portion 301 is a triangular structure corresponding to the protruding tube portion 100 and the reinforcing sheet 4, and the tubular groove 302 is a V-shaped structure corresponding to the protruding tube portion 100.

[0027] Furthermore, in one embodiment of the present invention, the backrest 3 is a plastic backrest, and the seat plate 2 is a bent wood seat plate.

[0028] The basic principle of the utility model is to bend the steel pipe into a triangular shape at the upper part of the rear leg of the steel pipe chair frame 1, weld a 2mm iron sheet at the triangular notch, leave holes for connecting screws on the iron sheet, and then design the plastic backrest into an L shape, design a groove part and a tubular groove at the bottom of the backrest, the diameter of the tubular groove matches the diameter of the steel pipe, and then leave 5 perforations at the bottom of the backrest for easy connection with the seat plate. During installation, first connect the plastic backrest to the seat plate with 2 screws on the left and right, and then connect the whole to the steel pipe chair frame. The protruding pipe part, the iron sheet on the chair frame, the groove part and the tubular groove of the plastic backrest are just snap-fitted and matched, which can play a positioning role, facilitate the connection of the steel pipe chair frame with the 4 screw holes of the seat plate, and connect the steel pipe at the triangle with the backrest and the seat plate by screws, effectively pressing the plastic backrest to prevent loosening. The above overall design is simple and practical, efficient to install, low cost and good stability.

[0029] The utility model has an innovative design for a steel pipe chair frame, a protruding pipe portion is formed on the steel pipe chair frame, and a reinforcing sheet is installed externally to effectively press the backrest and the seat plate, thereby ensuring the overall strength of the backrest. The utility model can be widely applied to furniture chair products.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chair with reliable connection, comprising a steel tube chair frame (1), a seat plate (2) and a backrest (3) arranged on the steel tube chair frame (1), characterized in that: The rear side of the upper end of the steel tube chair frame (1) is horizontally bent to form a protruding tube portion (100), and the protruding tube portion (100) forms a recess (101). A reinforcing plate (4) is fixedly arranged in the recess (101). The lower end of the backrest (3) has a backrest horizontal portion (300), and the backrest horizontal portion (300) is sandwiched between the steel tube chair frame (1) and the seat plate (2). A groove portion (301) is arranged at the bottom of the backrest, and the groove portion (301) is engaged with the protruding tube portion (100) and the reinforcing plate (4) of the steel tube chair frame (1). The reinforcing plate (4) is connected to the groove portion (301) of the backrest (3) and the seat plate (2) via a fastener.

2. A seat with reliable connection according to claim 1, characterized in that: The groove portion (301) has a tubular groove (302), the width of the tubular groove (302) matches the diameter of the steel tube in the steel tube chair frame (1), and the tubular groove (302) is engaged with the protruding tube portion (100) of the steel tube chair frame (1).

3. A seat with reliable connection according to claim 1, characterized in that: The protruding tube portion (100) is a V-shaped structure, the reinforcing sheet (4) is a triangular structure corresponding to the protruding tube portion (100), and the groove portion (301) is a triangular structure corresponding to the protruding tube portion (100) and the reinforcing sheet (4).

4. A seat with reliable connection according to claim 1, characterized in that: The steel tube chair frame (1) comprises two front and rear U-shaped tubes (102) and a transverse tube (103) connected between the upper ends of the two front and rear U-shaped tubes (102).

5. A seat with reliable connection according to claim 4, characterized in that: The transverse tube (103) is connected to the seat plate (2) via fasteners.

6. A seat with reliable connection according to claim 1, characterized in that: The backrest (3) is a plastic backrest.

7. A seat with reliable connection according to claim 1, characterized in that: The seat plate (2) is a bent wood seat plate.

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