An adjustable office chair

Abstract

The utility model provides an adjustable office chair relates to the technical field of seat, include: the seat board, the bottom of seat board and near the fixedly connected with the installation ring of center place, the outer arc wall symmetry fixedly connected with the fixed plate of installation ring, the top of fixed plate and near one end fixedly connected with the vertical column, the top of vertical column all has set up the round groove, the bottom inner wall of round groove all has set up the round hole, the inside embedding of round groove has T type pole, the top of T type pole has set up the screw hole, the inside embedding and screw thread connection of screw hole has the stud, the bottom embedding of stud round hole inside, the top of stud all fixedly connected with the handrail, in the utility model, through rotating the rotating ring and driving T type pole rotation, again because the limit block embeds the limit vertical groove inside, can make the stud inside screw hole along the limit vertical groove direction lift and fall, can play the effect of accurate regulation handrail height, can reach the effect that improves high office chair applicability.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to an adjustable office chair. Background Technology

[0002] The headrest of a seat is used to support the head. It is an auxiliary device designed to improve user comfort and safety. With the development of society, people have put forward higher requirements for the comfort of seats.

[0003] Traditional chair armrests often use a "sliding rail + simple locking device" design, with few adjustment levels and a large adjustment range. For users who have very high requirements for armrest height, it is impossible to achieve fine and precise adjustments, resulting in unnatural arm positioning and shoulder fatigue with long-term use. Utility Model Content

[0004] This utility model mainly provides an adjustable office chair with precisely adjustable armrest height.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable office chair, comprising: a seat plate, a mounting ring fixedly connected to the bottom of the seat plate near its center, a fixing plate symmetrically fixedly connected to the outer arc wall of the mounting ring, a vertical column fixedly connected to the top of the fixing plate near one end, a circular groove formed at the top of each vertical column, a circular hole formed on the inner wall of the bottom of each circular groove, a T-shaped rod embedded inside the circular groove, a screw hole formed at the top of the T-shaped rod, a stud threadedly connected inside the screw hole, the bottom of the stud threadedly embedded inside the circular hole, an armrest fixedly connected to the top of each stud, a rotating ring rotatably connected to the surface of the vertical column, the rotating ring being fixedly connected to the T-shaped rod, a T-shaped plate fixedly connected to the outer arc wall of the mounting ring, a screw rod symmetrically passing through one end of the T-shaped plate, a backrest fixedly connected to the top of the screw rod, and a mounting nut threadedly connected to the bottom of the screw rod.

[0006] Preferably, the diameter of the circular hole is adapted to the stud, and the diameter of the circular hole is smaller than the diameter of the circular groove. With the above arrangement, the T-shaped rod can be embedded in the circular groove and simultaneously fitted onto the stud.

[0007] Preferably, the inner wall of the circular groove is provided with an annular groove, and an annular plate is embedded in the annular groove on the inner wall of the circular groove. The T-shaped rod is fixedly connected to the annular plate. Through the above arrangement, the annular plate can limit the T-shaped rod.

[0008] Preferably, the inner wall of the circular hole is provided with equal-spaced limiting vertical grooves, and a limiting block is provided inside the limiting vertical groove and near the bottom. The limiting block is fixedly connected to the stud. Through the above arrangement, the stud can be limited.

[0009] Preferably, a pneumatic lifting rod is installed inside the mounting ring, which allows for adjustment of the seat height.

[0010] Preferably, a movable component is fixedly installed at the bottom of the pneumatic lifting rod, which allows the seat to be moved.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the rotating ring drives the T-shaped rod to rotate, and since the limiting block is embedded in the limiting vertical groove, the screw inside the screw hole can be raised and lowered along the direction of the limiting vertical groove, which can achieve the effect of precisely adjusting the height of the armrest, thereby improving the applicability of the high office chair.

[0013] 2. In this utility model, the screw and mounting nut facilitate the installation and disassembly of the chair, thereby improving the efficiency of chair installation and disassembly. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional view of the overall structure of an adjustable office chair;

[0015] Figure 2 A bottom view of the overall structure of an adjustable office chair is provided for this utility model;

[0016] Figure 3 This utility model provides an overall structural cross-sectional view of an adjustable office chair;

[0017] Figure 4 A cross-sectional view of a stud structure for an adjustable office chair is provided for this utility model.

[0018] Legend: 1. Seat plate; 2. Mounting ring; 3. Fixing plate; 4. Vertical column; 5. Circular groove; 6. Circular hole; 7. T-shaped rod; 8. Screw hole; 9. Screw; 10. Limiting vertical groove; 11. Limiting block; 12. Rotating ring; 13. Armrest; 14. Pneumatic lifting rod; 15. Moving component; 16. T-shaped plate; 17. Backrest; 18. Screw; 19. Mounting nut. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Please see Figures 1-4 This utility model provides a technical solution: an adjustable office chair, comprising: a seat plate 1, a mounting ring 2 fixedly connected to the bottom of the seat plate 1 near its center, a fixing plate 3 symmetrically fixedly connected to the outer arc wall of the mounting ring 2, a vertical column 4 fixedly connected to the top of the fixing plate 3 near one end, a circular groove 5 formed at the top of each vertical column 4, a circular hole 6 formed on the inner wall of the bottom of each circular groove 5, a T-shaped rod 7 embedded inside the circular groove 5, a screw hole 8 formed at the top of the T-shaped rod 7, a stud 9 embedded and threadedly connected inside the screw hole 8, the bottom of the stud 9 embedded inside the circular hole 6, an armrest 13 fixedly connected to the top of each stud 9, and a rotating ring 12 rotatably connected to the surface of the vertical column 4. 2 is fixedly connected to the T-shaped rod 7. The outer arc wall of the mounting ring 2 is fixedly connected to the T-shaped plate 16. One end of the T-shaped plate 16 is symmetrically connected to the screw rod 18. The top of the screw rod 18 is fixedly connected to the backrest 17. The bottom of the screw rod 18 is fitted with and threadedly connected to the mounting nut 19. Through the above settings, the rotating ring 12 can rotate and drive the T-shaped rod 7 to rotate. At this time, the rotation of the T-shaped rod 7 can drive the stud 9 inside the screw hole 8 to rise. The rise of the stud 9 can allow the limiting block 11 to slide inside the limiting vertical groove 10, which can limit the stud 9. At this time, the stud 9 rises and falls along the direction of the limiting vertical groove 10, which can precisely adjust the height of the armrest 13, thereby improving the applicability of the high office chair.

[0022] like Figure 3 As shown, the diameter of the circular hole 6 is adapted to the stud 9. The diameter of the circular hole 6 is smaller than the diameter of the circular groove 5. Through the above arrangement, the T-shaped rod 7 can be embedded in the circular groove 5 and simultaneously fitted onto the stud 9.

[0023] like Figure 3 As shown, the inner wall of the circular groove 5 is provided with an annular groove, and an annular plate is embedded in the annular groove on the inner wall of the circular groove 5. The T-shaped rod 7 is fixedly connected to the annular plate. Through the above arrangement, the annular plate can limit the T-shaped rod 7.

[0024] like Figure 3 and Figure 4 As shown, the inner wall of the circular hole 6 is provided with equal spacing of limiting vertical grooves 10. A limiting block 11 is provided inside the limiting vertical groove 10 and near the bottom. The limiting block 11 is fixedly connected to the stud 9. Through the above setting, the stud 9 can be limited.

[0025] like Figure 2 and Figure 3As shown, a pneumatic lifting rod 14 is installed inside the mounting ring 2. Through the above-mentioned setting, the height of the seat can be adjusted.

[0026] like Figure 1 As shown, a movable component 15 is fixedly installed at the bottom of the pneumatic lifting rod 14, which allows the seat to be moved.

[0027] The device is used and works as follows: By manually rotating the rotating ring 12, the rotating ring 12 can drive the T-shaped rod 7 to rotate. The rotation of the T-shaped rod 7 can drive the stud 9 inside the screw hole 8 to rise. The rise of the stud 9 can allow the limiting block 11 to slide inside the limiting vertical groove 10, which can limit the stud 9. At this time, the stud 9 can rise and fall along the direction of the limiting vertical groove 10, which can precisely adjust the height of the armrest 13, thereby improving the applicability of high office chairs.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An adjustable office chair, characterized in that, include: A base plate (1) is provided. A mounting ring (2) is fixedly connected to the bottom of the base plate (1) near its center. A fixing plate (3) is symmetrically fixedly connected to the outer arc wall of the mounting ring (2). A vertical column (4) is fixedly connected to the top of the fixing plate (3) near one end. A circular groove (5) is provided on the top of each vertical column (4). A circular hole (6) is provided on the bottom inner wall of each circular groove (5). A T-shaped rod (7) is embedded inside the circular groove (5). A screw hole (8) is provided on the top of the T-shaped rod (7). A stud (9) is embedded and threaded inside the screw hole (8). The bottom of the stud (9) is embedded in the round hole (6), and the top of the stud (9) is fixedly connected to the armrest (13). The surface of the vertical column (4) is fitted with and rotatably connected to the rotating ring (12). The rotating ring (12) is fixedly connected to the T-shaped rod (7). The outer arc wall of the mounting ring (2) is fixedly connected to the T-shaped plate (16). One end of the T-shaped plate (16) is symmetrically connected to the screw (18). The top of the screw (18) is fixedly connected to the backrest (17). The bottom of the screw (18) is fitted with and threadedly connected to the mounting nut (19).

2. The adjustable office chair according to claim 1, characterized in that: The diameter of the circular hole (6) is adapted to the stud (9), and the diameter of the circular hole (6) is smaller than the diameter of the circular groove (5).

3. The adjustable office chair according to claim 1, characterized in that: The inner wall of the circular groove (5) is provided with an annular groove, and an annular plate is embedded in the annular groove on the inner wall of the circular groove (5). The T-shaped rod (7) is fixedly connected to the annular plate.

4. An adjustable office chair according to claim 1, characterized in that: The inner wall of the circular hole (6) is provided with equal spacing of limiting vertical grooves (10), and a limiting block (11) is provided inside the limiting vertical groove (10) and near the bottom. The limiting block (11) is fixedly connected to the stud (9).

5. An adjustable office chair according to claim 1, characterized in that: The mounting ring (2) is equipped with a pneumatic lifting rod (14).

6. An adjustable office chair according to claim 5, characterized in that: A movable component (15) is fixedly installed at the bottom of the pneumatic lifting rod (14).

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