Office chair with adjustable armrests

Abstract

The utility model relates to the technical field of office chairs, in particular to an office chair with adjustable armrests. Comprising a base and a seat, the seat is mounted on the base, a mounting base plate is arranged at the bottom of the seat, a backrest is connected to the rear side of the mounting base plate, L-shaped armrest rods are fixedly connected to the two sides of the mounting base plate, the upper portions of the L-shaped armrest rods are sleeved with armrest rod sleeves, and armrest seats are fixedly connected to the tops of the armrest rod sleeves; a limiting mechanism matched with the grab rail sleeve is arranged on the upper portion of the L-shaped grab rail. The utility model provides an office chair with adjustable armrests, which is reasonable in structure, convenient to operate and stable in support, aiming at the problems of inconvenience in height adjustment, poor stability and the like of the armrests of the office chair in the prior art.

Description

Technical Field

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

[0002] With the continuous upgrading of modern office environments, people have placed higher demands on the comfort and functionality of office chairs. As an important component of office chairs, the height adjustment function of armrests directly affects the user's arm support comfort and posture adaptability.

[0003] Currently, the armrest adjustment structures of office chairs on the market generally have the following shortcomings: traditional armrest adjustment mostly uses bolt fixing or gear transmission structure, which requires users to use tools to perform multiple disassembly or rotation operations. The adjustment process is cumbersome and inefficient, and cannot meet the needs of quick adjustment. Utility Model Content

[0004] This invention addresses the problems of inconvenient armrest height adjustment and poor stability in existing office chairs by providing an adjustable armrest office chair with a reasonable structure, convenient operation, and stable support.

[0005] The technical solution adopted by this utility model is as follows: an office chair with adjustable armrests, including a base and a seat, with the seat installed on the base. The bottom of the seat is provided with a mounting base plate, and a backrest is connected to the rear side of the mounting base plate. L-shaped armrests are fixedly connected to both sides of the mounting base plate. An armrest sleeve is fitted on the upper part of the L-shaped armrest, and an armrest seat is fixedly connected to the top of the armrest sleeve. A limiting mechanism that matches the armrest sleeve is provided on the upper part of the L-shaped armrest.

[0006] As a further improvement of this utility model, the base is a five-legged base, and each of the five legs of the five-legged base is equipped with movable casters.

[0007] As a further improvement of this utility model, the armrest is equipped with a plurality of massage wheels that are rotatably connected to it and the plurality of massage wheels are evenly arranged.

[0008] As a further improvement of this utility model, the limiting mechanism includes fixing grooves respectively disposed on both sides of the upper part of the L-shaped handrail, and a spring connected to the L-shaped handrail is installed in the fixing groove, with one end of the spring connected to a limiting block that passes through the handrail sleeve.

[0009] As a further improvement of this utility model, multiple evenly distributed limiting holes are provided on both sides of the handrail sleeve, and the multiple limiting holes are adapted to the limiting blocks.

[0010] The beneficial effects of this utility model are as follows: By using a spring-driven limiting block in the limiting mechanism and a multi-level limiting hole on the handrail sleeve, the user can quickly and steplessly adjust the height of the handrail by pressing the limiting block with one hand. After adjustment, the limiting block automatically embeds into the corresponding limiting hole under the spring's reset action, ensuring that the handrail seat is securely locked. This solves the pain points of traditional adjustment methods that rely on tools and are cumbersome to operate, and avoids the problem of easy loosening after adjustment. At the same time, the multi-level design can adapt to the needs of different user heights and usage scenarios, significantly improving the convenience, stability and ergonomic adaptability of adjustment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an office chair with adjustable armrests according to this utility model;

[0012] Figure 2 This utility model relates to an office chair with adjustable armrests. Figure 1 Another perspective illustration;

[0013] Figure 3 This is a partial structural schematic diagram of an office chair with adjustable armrests according to the present invention;

[0014] Figure 4 This is a partial structural cross-sectional view of an office chair with adjustable armrests according to this utility model;

[0015] Figure 5 This utility model relates to an office chair with adjustable armrests. Figure 4 Schematic diagram of section A.

[0016] As shown in the figure: 1. Base; 2. Seat; 3. Mounting base plate; 4. Backrest; 5. L-shaped armrest; 6. Armrest sleeve; 7. Armrest seat; 8. Limiting mechanism; 801. Fixing groove; 802. Spring; 803. Limiting block; 804. Limiting hole; 9. Movable casters; 10. Massage rollers. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] This utility model provides an office chair with adjustable armrests as shown in Figures 1-5, including a base 1 and a seat 2, with the seat 2 mounted on the base 1. The bottom of the seat 2 is provided with a mounting base 3, and a backrest 4 is connected to the rear side of the mounting base 3. L-shaped armrests 5 are fixedly connected to both sides of the mounting base 3. An armrest sleeve 6 is fitted on the upper part of the L-shaped armrest 5, and an armrest seat 7 is fixedly connected to the top of the armrest sleeve 6. A limiting mechanism 8 that is adapted to the armrest sleeve 6 is provided on the upper part of the L-shaped armrest 5.

[0021] like Figure 1 and Figure 2 As shown, in this utility model, the base 1 is a five-legged base, and each of the five legs of the five-legged base is equipped with movable casters 9, which facilitates the movement and turning of the office chair and improves the flexibility of use.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, in this utility model, the armrest seat 7 is equipped with multiple massage rollers 10 that are rotatably connected to it, and the multiple massage rollers 10 are evenly arranged. When the user is working for a long time, his / her arm can be rested on the armrest seat 7. The massage rollers 10 contact the arm and generate a slight rotation, thereby massaging the arm area, improving the user's comfort, and increasing the functionality of the office chair.

[0023] like Figure 3 , Figure 4 Figure 5 As shown, the limiting mechanism 8 in this utility model includes fixing grooves 801 respectively disposed on both sides of the upper part of the L-shaped handrail 5. A spring 802 connected to the L-shaped handrail 5 is installed in the fixing groove 801, and one end of the spring 802 is connected to a limiting block 803 that passes through the handrail sleeve 6. Multiple evenly distributed limiting holes 804 are provided on both sides of the handrail sleeve 6, and the multiple limiting holes 804 are adapted to the limiting blocks 803.

[0024] Working Principle: In practical implementation, the user can press the limiting block 803 with one hand to compress the spring 802, causing the limiting block 803 to disengage from the current limiting hole 804 and move into the fixing groove 801. Then, the armrest sleeve 6 slides up and down, adjusting the height of the armrest seat 7 and the upper part of the L-shaped armrest 5 relative to the lower part of the L-shaped armrest 5 until a suitable height is achieved. After releasing the limiting block 803, the spring 802 resets and pushes the limiting block 803 to automatically embed into the corresponding height limiting hole 804, completing the rapid adjustment of the armrest height while ensuring the armrest seat 7 is securely locked. The entire adjustment process requires no tools, making it convenient to operate. Furthermore, the multi-level limiting hole 804 design adapts to different user heights and usage scenarios, significantly improving the comfort and functionality of the office chair.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An office chair with adjustable armrests, comprising a base (1) and a seat (2) wherein the seat (2) is mounted on the base (1), characterized in that: The seat (2) has a mounting base plate (3) at the bottom, and a backrest (4) is connected to the back of the mounting base plate (3). L-shaped armrests (5) are fixedly connected to both sides of the mounting base plate (3). An armrest sleeve (6) is fitted on the upper part of the L-shaped armrest (5). An armrest seat (7) is fixedly connected to the top of the armrest sleeve (6). A limiting mechanism (8) that matches the armrest sleeve (6) is provided on the upper part of the L-shaped armrest (5).

2. The office chair with adjustable armrests according to claim 1, characterized in that: The base (1) is a five-legged base, and each of the five legs of the five-legged base is equipped with movable casters (9).

3. An office chair with adjustable armrests according to claim 1, characterized in that: The armrest seat (7) is equipped with multiple massage rollers (10) that are rotatably connected to it, and the multiple massage rollers (10) are evenly arranged.

4. An office chair with adjustable armrests according to claim 1, characterized in that: The limiting mechanism (8) includes fixing grooves (801) respectively set on both sides of the upper part of the L-shaped handrail (5). A spring (802) connected to the L-shaped handrail (5) is installed in the fixing groove (801), and one end of the spring (802) is connected to a limiting block (803) that passes through the handrail sleeve (6).

5. An office chair with adjustable armrests according to claim 4, characterized in that: The handrail sleeve (6) has multiple evenly distributed limiting holes (804) on both sides, and the multiple limiting holes (804) are adapted to the limiting block (803).

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