A seat armrest

Abstract

The utility model provides a kind of seat armrest, including mounting block and armrest, the mounting block is used to install on the side wall of chair back, connecting block is vertically slidably equipped on the mounting block, the connecting block is equipped with the limiting piece between mounting block, which limits the sliding of connecting block, and one end of armrest is rotatably arranged in one side of connecting block.The armrest of the present application has the advantages of convenient height adjustment and overall armrest storage.

Description

Technical Field

[0001] This utility model relates to the field of seat component design technology, and in particular to a seat armrest. Background Technology

[0002] Office chairs are one of the main tools for daily office work. As people's requirements for life increase, office chairs are also being upgraded and replaced.

[0003] The prior art, such as the utility model patent with publication number CN220308747U entitled "A Seat Armrest", includes a first connecting arm, a protective sleeve fitted over the first connecting arm, a rotating seat rotatably connected to the protective sleeve, a second connecting arm hinged to the rotating seat, and an armrest crossbar that can slide and rotate relative to the second connecting arm; a control arm is hinged to the protective sleeve, a toggle piece is fixed on the control arm, and an opening is provided on the protective sleeve for the toggle piece to extend out.

[0004] Similar to the handrails mentioned above, although the height of the handrails themselves can be adjusted, the limitations of their structure prevent them from being flipped and stored. Similarly, existing flip handrails on the market also require a rotating function, making it difficult to conveniently adjust the height and thus not suitable for users of different body types, limiting their applicability. Utility Model Content To address the shortcomings of existing technologies, this utility model provides a seat armrest that solves the technical problem that existing armrests can only be adjusted in height or flipped for storage, resulting in a limited range of applications.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A seat armrest includes a mounting block and an armrest component. The mounting block is used to install on the side wall of the seat back. A connecting block is vertically slidably provided on the mounting block. A limiting member is provided between the connecting block and the mounting block to restrict the sliding of the connecting block. One end of the armrest component is rotatably disposed on one side of the connecting block.

[0006] The present invention is further configured such that: the handrail component includes a rotating frame and a handrail block, the rotating frame is rotatably connected to one side of the connecting block, and the handrail block is disposed on the top of the rotating frame and is used to support the user's arm.

[0007] The present invention is further configured such that: a shaft is fixedly provided on one side of the connecting block; a rotating groove coaxial with the shaft is provided on the rotating frame; the shaft is rotatably disposed in the rotating groove; a first protrusion is fixedly provided on the opposite sidewall of the shaft; the ends of the two first protrusions slide against the inner sidewall of the rotating groove; a second protrusion is fixedly provided on the opposite inner sidewall of the rotating groove; the ends of the two second protrusions slide against the sidewall of the shaft; and the sidewalls of the two second protrusions abut against the sidewalls of the two first protrusions respectively, thereby limiting the rotation angle of the rotating frame.

[0008] The present invention is further configured such that: a countersunk hole coaxial with the rotating groove is provided on the rotating frame, an abutment block is provided in the countersunk hole, the side wall of the abutment block slides against the side wall of the countersunk hole, and a limiting bolt with a nut is provided on the abutment block, the limiting bolt is used to be screwed to the shaft.

[0009] The present invention is further configured such that: an adjustment groove is provided on the mounting block, a strip-shaped sliding hole is vertically provided in the adjustment groove, a slider is fixed on the connecting block, and the slider slides through the sliding hole.

[0010] The present invention is further configured such that: the limiting member includes an adjusting block and a limiting block; the adjusting block is disposed in the adjusting groove; the adjusting block is fixedly connected to the end of the slider extending out of the sliding hole; the adjusting groove is vertically provided with an adjusting hole having a wavy track on one side of its inner wall; the limiting block is rotatably disposed on the adjusting block; the limiting block is used to abut against the wavy track on the adjusting hole; the side wall of the limiting block slides against the side wall of the adjusting hole; a spring is fixedly disposed on one side of the limiting block; the spring is fixedly connected to the side wall of the adjusting block.

[0011] The present invention is further configured such that the mounting block has a connection hole for easy connection with the chair back.

[0012] Compared to the beneficial effects achieved by existing technologies: This application, by rotatably mounting the armrest components onto a connecting block that can slide vertically along the mounting block, enables the armrest to not only have conventional horizontal rotation adjustment but also flexible overall height adjustment. This effectively overcomes the limitations of traditional fixed or single-rotation armrests, which are difficult to adapt to different user postures, heights, and usage habits. This structure significantly improves the ergonomic adaptability and comfort of the armrest, allowing users to precisely adjust it to the most suitable height and angle according to their needs. Furthermore, when not in use, the armrest can be folded upwards for storage, effectively saving space and enhancing the flexibility and overall aesthetics of the seating layout. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model; Figure 3 This is an exploded view of the overall structure of an embodiment of the present invention from another perspective; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0014] In the above attached figures: 1. Mounting block; 2. Connecting block; 3. Rotating frame; 4. Handrail block; 5. Shaft; 6. Rotating groove; 7. First protrusion; 8. Second protrusion; 9. Countersunk hole; 10. Abutment block; 11. Limiting bolt; 12. Adjusting groove; 13. Sliding hole; 14. Sliding block; 15. Adjusting block; 16. Limiting block; 17. Adjusting hole; 18. Spring; 19. Connecting hole. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example: Reference Figures 1-5 This application relates to a seat armrest, including a mounting block 1 and an armrest component. The mounting block 1 is used to install on the side wall of the chair back. The mounting block 1 has a connection hole 19 for easy connection with the chair back. During installation, it can be fixed by screwing a bolt through the connection hole 19 to one side of the chair back.

[0017] like Figure 2 and Figure 3 As shown, a connecting block 2 is vertically slidable on the mounting block 1. A limiting member restricts the sliding of the connecting block 2 between the connecting block 2 and the mounting block 1. An adjusting groove 12 is provided on the mounting block 1, and a strip-shaped sliding hole 13 is vertically provided in the adjusting groove 12. A slider 14 is fixed on the connecting block 2, and the slider 14 slides through the sliding hole 13. Figure 2 , Figure 3 and Figure 5As shown, the limiting component includes an adjusting block 15 and a limiting block 16. The adjusting block 15 is disposed within the adjusting groove 12 and is fixedly connected to the end of the slider 14 extending out of the sliding hole 13. The adjusting groove 12 has a vertically formed adjusting hole 17 with a wavy track on one side of its inner wall. The limiting block 16 is rotatably mounted on the adjusting block 15 and abuts against the wavy track on the adjusting hole 17. The side wall of the limiting block 16 slides against the side wall of the adjusting hole 17. A spring 18 is fixedly mounted on one side of the limiting block 16 and is fixedly connected to the side wall of the adjusting block 15. Through the continuous abutment of the limiting block 16 by the spring 18, the limiting block 16 abuts against the wavy track on the adjusting hole 17, thus completing the positioning of the adjusting block 15 and the connecting block 2.

[0018] like Figure 2 , Figure 3 and Figure 4 As shown, the handrail includes a rotating frame 3 and a handrail block 4. The rotating frame 3 is rotatably connected to one side of the connecting block 2, and the handrail block 4 is located on the top of the rotating frame 3 and is used to support the user's arm. A shaft 5 is fixedly mounted on one side of the connecting block 2. A rotating groove 6 coaxial with the shaft 5 is provided on the rotating frame 3. The shaft 5 is rotatably mounted in the rotating groove 6. A first protrusion 7 is fixedly mounted on the opposite side wall of the shaft 5. The ends of the two first protrusions 7 slide against the inner side wall of the rotating groove 6. A second protrusion 8 is fixedly mounted on the opposite inner side wall of the rotating groove 6. The ends of the two second protrusions 8 slide against the side wall of the shaft 5. The side walls of the two second protrusions 8 are used to abut against the side walls of the two first protrusions 7 respectively, thereby limiting the rotation angle of the rotating frame 3. Through the two first protrusions 7 and the two second protrusions 8, the rotating frame 3 can be adjusted upward within a certain range. The maximum actual rotation angle is 70°. After rotating upward, it is convenient to store the rotating frame 3 and the handrail block 4.

[0019] like Figure 2 and Figure 3 As shown, the rotating frame 3 has a countersunk hole 9 coaxial with the rotating groove 6. An abutment block 10 is provided inside the countersunk hole 9. The sidewall of the abutment block 10 slides against the sidewall of the countersunk hole 9. A limiting bolt 11 with a nut passes through the abutment block 10 and is used for screwing into the shaft 5. By setting the abutment block 10, and cooperating with the limiting bolt 11 passing through the countersunk hole 9 and screwing into the shaft 5 in the rotating groove 6, the rotating frame 3 is effectively prevented from slipping off the shaft 5.

[0020] Working principle: Mounting block 1 is fixed to the side wall of the chair back via connecting hole 19 and bolts. Slider 14 on connecting block 2 slides vertically within sliding hole 13 of mounting block 1, raising and lowering the entire armrest. Spring 18 continuously presses against limiting block 16, ensuring it is tightly against the wave-shaped track on the inner wall of adjustment hole 17. This friction allows for self-locking at any height. When the user's lifting force is sufficient to overcome this friction, limiting block 16 slides along the track, allowing for stepless height adjustment and locking. Angle adjustment is achieved through the engagement of shaft 5 on connecting block 2 and rotating groove 6 on armrest rotating frame 3. Rotating frame 3 can rotate around shaft 5. Simultaneously, the interference between the first protrusion 7 on shaft 5 and the second protrusion 8 on the inner wall of rotating groove 6 limits the rotation angle of rotating frame 3 to a maximum of 70 degrees. The friction between the first and second protrusions satisfies the angle adjustment requirements during use and facilitates the armrest's overall upward flipping for storage.

[0021] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A type of armrest for a seat, characterized in that: The chair includes a mounting block (1) and an armrest. The mounting block (1) is used to install on the side wall of the chair back. A connecting block (2) is vertically slidably provided on the mounting block (1). A limiting member is provided between the connecting block (2) and the mounting block (1) to restrict the sliding of the connecting block (2). One end of the armrest is rotatably located on one side of the connecting block (2). The armrest includes a rotating frame (3) and an armrest block (4). The rotating frame (3) is rotatably connected to one side of the connecting block (2). The armrest block (4) is located on the top of the rotating frame (3) and is used to support the user's arm. A shaft (5) is fixedly provided on one side of the connecting block (2). A rotating groove (6) coaxial with the shaft (5) is opened on the rotating frame (3). The shaft (5) is rotatably located in the rotating groove (6). A shaft (5) is fixedly provided on the opposite side wall of the shaft (5). The first protrusion (7) has two ends that slide against the inner wall of the rotating groove (6). The inner walls of the rotating groove (6) are fixed with second protrusions (8). The ends of the two second protrusions (8) slide against the side wall of the shaft (5). The side walls of the two second protrusions (8) are used to abut against the side walls of the two first protrusions (7) respectively, thereby limiting the rotation angle of the rotating frame (3). The rotating frame (3) has a countersunk hole (9) coaxial with the rotating groove (6). The countersunk hole (9) has an abutment block (10). The side wall of the abutment block (10) slides against the side wall of the countersunk hole (9). The abutment block (10) is fitted with a limiting bolt (11) with a nut. The limiting bolt (11) is used to be screwed to the shaft (5).

2. The armrest of a seat according to claim 1, characterized in that: The mounting block (1) is provided with an adjustment groove (12), and a strip-shaped sliding hole (13) is provided vertically in the adjustment groove (12). The connecting block (2) is fixed with a slider (14), and the slider (14) slides through the sliding hole (13).

3. A seat armrest according to claim 2, characterized in that: The limiting component includes an adjusting block (15) and a limiting block (16). The adjusting block (15) is disposed in the adjusting groove (12). The adjusting block (15) is fixedly connected to the end of the slider (14) extending out of the sliding hole (13). The adjusting groove (12) has a vertically opened adjusting hole (17) with a wave-shaped track on one side of its inner wall. The limiting block (16) is rotatably disposed on the adjusting block (15). The limiting block (16) is used to abut against the wave-shaped track on the adjusting hole (17). The side wall of the limiting block (16) slides against the side wall of the adjusting hole (17). A spring (18) is fixedly disposed on one side of the limiting block (16). The spring (18) is fixedly connected to the side wall of the adjusting block (15).

4. A seat armrest according to claim 1, characterized in that: The mounting block (1) has a connection hole (19) for easy connection with the chair back.

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