Adjustable chair base

Abstract

The utility model relates to the technical field of chairs, in particular to an adjustable chair base which comprises a chair seat, a base body is movably installed at the bottom of the chair seat, a chair back is fixedly installed on the rear side of the top of the chair seat, the bottom of the base body comprises two bottom plates, supporting plates are fixedly installed on the tops of the two bottom plates, and first threaded holes are fixedly formed in the outer walls of the two supporting plates. Telescopic plates are movably mounted in the two supporting plates; the transverse telescopic plate can move in the transverse plate, so that the transverse telescopic plate can move outwards from the interior of the transverse plate, the distance between the two supporting plates can be synchronously adjusted through outward moving of the transverse telescopic plate, meanwhile, the overall width distance of the base can be synchronously adjusted, and the adjustment precision is improved. Therefore, the overall width distance of the base can be adjusted to a proper position according to the width of the chair seat, so that the base can be suitable for the installation of chair seats with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of chairs, in particular to an adjustable chair base. Background Art

[0002] A chair is a kind of seat with a backrest or armrests, which mainly supports the human body. A chair can be used for people to sit, work and rest.

[0003] Most traditional chairs have a simple structure, mainly consisting of a seat, a backrest, and a base, and have relatively simple functions. The height of the chair cannot be adjusted according to needs. At the same time, the width of the base on the chair is fixed and cannot be adjusted. When a seat of different widths needs to be replaced, the corresponding base also needs to be replaced. Therefore, we propose an adjustable chair base to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the background technology and proposes an adjustable chair base.

[0005] To achieve the above objectives, the technical solution adopted by the utility model is as follows: an adjustable chair base, comprising a seat, a base movably installed at the bottom of the seat, a chair back fixedly installed at the rear side of the top of the seat, the bottom of the base comprising two bottom plates, support plates fixedly installed at the tops of the two bottom plates, first threaded holes fixedly installed at the outer walls of the two support plates, telescopic plates movably installed inside the two support plates, multiple second threaded holes fixedly installed at the outer walls of the two telescopic plates, first bolts threadedly installed inside the first threaded holes and the second threaded holes, mounting seats fixedly installed at the tops of the two telescopic plates, third threaded holes fixedly installed on both sides of the outer walls of the two mounting seats, mounting blocks fixedly installed on both sides of the bottom of the seat, and the mounting blocks are movably installed inside the mounting seats, fourth threaded holes fixedly installed on both sides of the outer walls of the mounting blocks, and second bolts threadedly installed inside the third threaded holes and the fourth threaded holes, a transverse plate fixedly installed on the outer wall of the left support plate, a transverse telescopic plate fixedly installed on the outer wall of the right support plate, and the transverse telescopic plate movably installed inside the transverse plate.

[0006] Furthermore, the transverse expansion plate is adapted to the interior of the transverse plate.

[0007] Furthermore, the telescopic plate is adapted to the interior of the support plate, and the first threaded hole corresponds to the second threaded hole one by one.

[0008] Furthermore, the mounting block and the interior of the mounting seat are inlaid structures, and the third threaded hole corresponds to the fourth threaded hole one by one.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] (1) The transverse telescopic plate can be moved inside the transverse plate so that the transverse telescopic plate can be moved outward from the inside of the transverse plate. Thus, by moving the transverse telescopic plate outward, the distance between the two support plates can be adjusted synchronously, and the width distance of the base as a whole can be adjusted synchronously. Thus, the width distance of the base as a whole can be adjusted to a suitable position according to the width of the seat, so that the base can be suitable for installation on seats of different widths.

[0011] (2) The mounting block is embedded in the mounting seat so that the mounting block can be detached from the mounting seat, thereby facilitating disassembly and installation between the seat and the base, and the second bolt can be tightened into the third threaded hole and the fourth threaded hole to lock and fix the mounting block, so that the seat can be stably installed inside the base.

[0012] (3) By moving the telescopic plate inside the support plate, the extension height of the telescopic plate can be adjusted, and the height of the seat can be adjusted synchronously, so that the overall height of the base can be adjusted, and the first bolt can be tightened to the first threaded hole and the second threaded hole, so that the position of the telescopic plate can be locked and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model as a whole;

[0014] Figure 2 It is a schematic diagram of the overall split structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the main cross-sectional structure of the utility model as a whole;

[0016] Figure 4 It is a schematic diagram of the overall seat back structure of the utility model;

[0017] Figure 5 The utility model is the whole Figure 3 The enlarged structural diagram at A in the middle;

[0018] Figure 6 The utility model is the whole Figure 3 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1, base; 2, seat; 3, backrest; 4, bottom plate; 5, support plate; 6, first threaded hole; 7, telescopic plate; 8, second threaded hole; 9, bolt; 10, mounting seat; 11, third threaded hole; 12, mounting block; 13, fourth threaded hole; 14, bolt; 15, transverse plate; 16 transverse telescopic plate. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] like Figure 1-6 The adjustable chair base shown in the figure includes a seat 2, a base 1 is movably installed at the bottom of the seat 2, a backrest 3 is fixedly installed at the rear side of the top of the seat 2, the bottom of the base 1 includes two bottom plates 4, the tops of the two bottom plates 4 are fixedly installed with support plates 5, the outer walls of the two support plates 5 are fixedly installed with first threaded holes 6, the insides of the two support plates 5 are movably installed with telescopic plates 7, the outer walls of the two telescopic plates 7 are fixedly installed with multiple second threaded holes 8, the first threaded holes 6 and the second threaded holes 8 are threadedly installed with first bolts 9, and the tops of the two telescopic plates 7 are fixedly installed with mounting holes 6. The mounting seat 10 has third threaded holes 11 fixedly installed on both sides of the outer walls of the two mounting seats 10, mounting blocks 12 are fixedly installed on both sides of the bottom of the seat 2, and the mounting blocks 12 are movably installed inside the mounting seat 10, fourth threaded holes 13 are fixedly installed on both sides of the outer walls of the mounting blocks 12, and second bolts 14 are threadedly installed inside the third threaded holes 11 and the fourth threaded holes 13, a transverse plate 15 is fixedly installed on the outer wall of the left support plate 5, and a transverse telescopic plate 16 is fixedly installed on the outer wall of the right support plate 5, and the transverse telescopic plate 16 is movably installed inside the transverse plate 15.

[0022] In this embodiment, the transverse expansion plate 16 is adapted to the interior of the transverse plate 15 .

[0023] During specific use, the transverse expansion plate 16 can be moved inside the transverse plate 15, so that the transverse expansion plate 16 can be moved outward from the inside of the transverse plate 15, so that by moving the transverse expansion plate 16 outward, the distance between the two support plates 5 can be adjusted synchronously, and the overall width distance of the base 1 can be adjusted synchronously, so that the overall width distance of the base 1 can be adjusted to a suitable position according to the width of the seat 2, so that the base 1 can be suitable for installation of seats 2 of different widths.

[0024] In this embodiment, the telescopic plate 7 is adapted to the interior of the support plate 5 , and the first threaded holes 6 correspond to the second threaded holes 8 one by one.

[0025] During specific use, the telescopic plate 7 is moved inside the support plate 5, so that the extension height of the telescopic plate 7 can be adjusted, and the height of the seat 2 can be adjusted synchronously, so that the overall height of the base 1 can be adjusted, and the first bolt 9 can be tightened to the first threaded hole 6 and the second threaded hole 8, so that the position of the telescopic plate 7 can be locked and fixed.

[0026] In this embodiment, the mounting block 12 and the interior of the mounting seat 10 are inlaid structures, and the third threaded holes 11 and the fourth threaded holes 13 correspond one to one.

[0027] During specific use, the mounting block 12 is embedded in the mounting seat 10 so that the mounting block 12 can be detached from the mounting seat 10, thereby facilitating disassembly and installation between the seat 2 and the base 1, and the second bolt 14 can be tightened into the third threaded hole 11 and the fourth threaded hole 13, so that the mounting block 12 can be locked and fixed, so that the seat 2 can be stably installed inside the base 1.

[0028] The working principle of an adjustable chair base mentioned in the utility model:

[0029] When in use, the transverse expansion plate 16 can be moved inside the transverse plate 15, so that the transverse expansion plate 16 can be moved outward from the inside of the transverse plate 15, so that the distance between the two support plates 5 can be adjusted synchronously by moving the transverse expansion plate 16 outward, and the width distance of the base 1 as a whole can be adjusted synchronously, so that the width distance of the base 1 as a whole can be adjusted to a suitable position according to the width of the seat 2, so that the base 1 can be suitable for installation of seats 2 of different widths;

[0030] At the same time, the mounting block 12 is embedded in the mounting seat 10 so that the mounting block 12 can be separated from the mounting seat 10, so that the seat 2 and the base 1 can be easily disassembled and installed, and the second bolt 14 can be tightened into the third threaded hole 11 and the fourth threaded hole 13, so that the mounting block 12 can be locked and fixed, so that the seat 2 can be stably installed in the base 1;

[0031] At the same time, by moving the telescopic plate 7 inside the support plate 5, the extension height of the telescopic plate 7 can be adjusted, and the height of the seat 2 can be adjusted synchronously, so that the overall height of the base 1 can be adjusted, and the first bolt 9 can be tightened to the first threaded hole 6 and the second threaded hole 8, so that the position of the telescopic plate 7 can be locked and fixed.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An adjustable chair base, comprising a seat (2), characterized in that: The seat (2) has a base (1) movably mounted at the bottom, and a backrest (3) is fixedly mounted at the rear side of the top of the seat (2). The base (1) includes two bottom plates (4) at the bottom, and support plates (5) are fixedly mounted on the tops of the two bottom plates (4). The outer walls of the two support plates (5) are fixedly mounted with first threaded holes (6). The interiors of the two support plates (5) are movably mounted with telescopic plates (7). The outer walls of the two telescopic plates (7) are fixedly mounted with a plurality of second threaded holes (8). The first threaded holes (6) and the second threaded holes (8) are internally threaded with first bolts (9). The tops of the two telescopic plates (7) are fixedly mounted with mounting seats (10). The mounting seat (10) is fixedly provided with third threaded holes (11) on both sides of the outer wall, the seat (2) is fixedly provided with mounting blocks (12) on both sides of the bottom, and the mounting blocks (12) are movably installed inside the mounting seat (10), the mounting blocks (12) are fixedly provided with fourth threaded holes (13) on both sides of the outer wall, and the third threaded holes (11) and the fourth threaded holes (13) are threadedly provided with second bolts (14), the outer wall of the left support plate (5) is fixedly provided with a transverse plate (15), and the outer wall of the right support plate (5) is fixedly provided with a transverse telescopic plate (16), and the transverse telescopic plate (16) is movably installed inside the transverse plate (15).

2. An adjustable chair base according to claim 1, characterized in that: The transverse expansion plate (16) is adapted to the interior of the transverse plate (15).

3. The adjustable chair base according to claim 1, characterized in that: The telescopic plate (7) is adapted to the interior of the support plate (5), and the first threaded hole (6) corresponds to the second threaded hole (8) one by one.

4. The adjustable chair base according to claim 1, characterized in that: The mounting block (12) and the interior of the mounting seat (10) are inlaid structures, and the third threaded hole (11) and the fourth threaded hole (13) correspond one to one.

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