Rotary armrest of seat

Abstract

A seat rotating armrest comprises an armrest panel, a supporting column and a connecting piece, a lifting column is arranged in the supporting column, the supporting column is rotationally connected with the connecting piece, the supporting column has a vertical state and an inclined state, and a rotating mechanism used for controlling the supporting column to rotate is arranged on the connecting piece; the rotating mechanism comprises a limiting part and a limiting rod, a first limiting groove and a second limiting groove are formed in the limiting part, and the limiting rod is connected into the first limiting groove or the second limiting groove and used for achieving conversion of the supporting column between the inclined state and the vertical state; compared with the prior art, the rotating mechanism comprises the limiting part and the limiting piece, the limiting part is provided with the first limiting groove and the second limiting groove, the limiting piece is located in the first limiting groove or the second limiting groove, and the limiting piece is switched between the first limiting groove and the second limiting groove, so that switching of the handrail between the vertical state and the inclined state is achieved; and conversion is convenient and fast, slow adjustment is not needed, and the use convenience and comfort of a user are improved.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, specifically to an angle-adjustable rotating armrest for a seat. Background Technology

[0002] Armrests are a common component of chairs. Existing armrests are usually fixed on both sides of the chair, and their height and tilt angle are relatively inconvenient compared to the fixed chair. For office workers, most of the day is spent sitting at a desk in front of a computer. Sitting like this every day makes people feel very tired, and using the computer for too long makes their arms very uncomfortable. Existing chair armrests cannot be adjusted according to people's sitting posture, cannot give their arms a sufficient rest, and cannot meet the ergonomic requirements during use.

[0003] To address the aforementioned issues, Chinese Patent Application No. 201420464991.4 discloses a rotating armrest for a seat. The disclosed rotating armrest includes an armrest, an armrest base, a slider, and a compression spring. A connecting post is fixedly provided at one end of the armrest base connected to the armrest. A hollow cylindrical platform is fixedly provided in the middle of the slider. The slider and the armrest base are engaged and rotated through the connecting post and the cylindrical platform. The compression spring is sleeved on the outer wall of the cylindrical platform. The armrest and the armrest base are rotatably connected and coordinated. Chinese Patent Application No. 202121273802.1 discloses a rotatable armrest and seat. The disclosed rotatable armrest and seat include a mounting base and an armrest body. One end of the mounting base is used to connect to the seat, and the other end is provided with an armrest mounting section. The end of the armrest mounting section is provided with a central shaft, and the side of the central shaft is provided with a stop block. The armrest body is provided with a connecting sleeve, and the connecting sleeve is provided with an inner retaining ring. The inner retaining ring is provided with a central hole, and one end of the inner retaining ring is provided with a stop block two located inside the connecting sleeve. The central hole is sleeved on the central shaft, and when the armrest body is in use, the stop block one is connected to the stop block two.

[0004] In the aforementioned prior art, the armrests of the seats achieve arbitrary angle adjustment through the cooperation of structures such as armrest base, slider, compression spring, and connecting column, thereby meeting the user's needs for armrest angle. However, because the existing armrests can achieve arbitrary angle adjustment, when the user only uses a single angle, the armrest needs to be slowly adjusted until it is adjusted to the required angle. The whole process is relatively slow and prone to errors, which reduces the user's patience. Utility Model Content

[0005] The present invention aims to overcome the defects in the prior art and provide a seat rotating armrest that can achieve rapid adjustment of a single angle.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a rotating armrest for a seat, comprising an armrest panel, a support column, and a connector, wherein a lifting column is provided in the support column, the support column is rotatably connected to the connector, the support column is provided in a vertical state and an inclined state, and the connector is provided with a rotating mechanism for controlling the rotation of the support column; the rotating mechanism includes a limiting part and a limiting rod, the limiting part is provided with a first limiting groove and a second limiting groove, and the limiting rod is connected to the first limiting groove or the second limiting groove to realize the switching between the inclined and vertical states of the support column.

[0007] In a preferred embodiment of this utility model, the limiting part is disposed at the end of the connector, and the limiting part is perpendicular to the connector.

[0008] As a preferred embodiment of the present invention, the top of the limiting part is provided with a protrusion, the first limiting groove and the second limiting groove are respectively located at both ends of the protrusion, and the height of the second limiting groove is higher than that of the first limiting groove.

[0009] In a preferred embodiment of this utility model, when the limiting rod is located in the first limiting groove, the support column is in an inclined state; when the limiting rod is located in the second limiting groove, the support column is in a vertical state.

[0010] As a preferred embodiment of this utility model, the limiting part has a rotation center hole, a rotation shaft is provided in the rotation center hole, and the bottom end of the lifting column is provided with a mating hole that is rotatably connected to the rotation shaft.

[0011] As a preferred embodiment of this utility model, the protruding surface has an arc-shaped structure, and the protruding surface is coaxially arranged with the rotation center hole.

[0012] In a preferred embodiment of this utility model, the first limiting groove and the second limiting groove are located on the same circumference as the raised surface.

[0013] As a preferred embodiment of this utility model, the lifting column is further provided with mounting holes for installing a limit rod.

[0014] As a preferred embodiment of this utility model, the limiting part is provided with a protective sleeve, the protective sleeve is provided with a positioning rod, and the limiting part is provided with a positioning hole connected to the positioning rod.

[0015] As a preferred embodiment of this utility model, the bottom of the support column is also provided with a protective sleeve, which is fitted onto the lifting column.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The angle of the handrail is adjusted by a rotating mechanism. The rotating mechanism includes a limiting part and a limiting member. The limiting part is provided with a first limiting groove and a second limiting groove. The limiting member is located in the first limiting groove or the second limiting groove. The limiting member switches between the first limiting groove and the second limiting groove, thereby realizing the switching between the two angles of the handrail in the vertical state and the tilted state. The switching is convenient and quick, without the need for slow adjustment, which improves the convenience and comfort of the user.

[0018] 2. Furthermore, the protrusion has an arc-shaped structure, and the surface of the protrusion is coaxial with the rotation center hole. At the same time, the first limiting groove and the second limiting groove are located on the same circumference as the surface of the protrusion. This ensures that when the limiting rod switches between the first limiting groove and the second limiting groove, the distance between the limiting rod and the rotation center hole remains unchanged, thereby ensuring that there will be no jamming or stuck situation during the adjustment of the handrail. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rotating mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the limiting part of this utility model;

[0022] Figure 4 This is a schematic diagram of the protective case;

[0023] Figure 5 This is a structural diagram of the support column.

[0024] Reference numerals: 1. Handrail panel; 2. Support column; 201. Lifting column; 201. Mounting hole; 2011. Mating hole; 2012. Protective sleeve; 202. Connector; 3. Rotating mechanism; 4. Limiting part; 401. First limiting groove; 4011. Second limiting groove; 4012. Protrusion; 4013. Rotation center hole; 4014. Positioning hole; 4015. Rotation shaft; 4016. First limiting protrusion; 4017. Second limiting protrusion; 4018. Protective sleeve; 402. Positioning rod; 4021. Limiting rod; 403. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figures 1-5As shown, a rotating armrest for a seat includes an armrest panel 1, a support column 2, and a connector 3. The support column 2 has a lifting column 201. The support column 2 is rotatably connected to the connector 3. The support column 2 has a vertical state and an inclined state. The connector 3 has a rotating mechanism 4 for controlling the rotation of the support column 2. The rotating mechanism 4 includes a limiting part 401 and a limiting rod 403. The limiting part 401 has a first limiting groove 4011 and a second limiting groove 4012. The limiting rod 403 is connected to the first limiting groove 4011 or the second limiting groove 4012 to realize the switching between the inclined and vertical states of the support column 2.

[0027] Furthermore, the connector 3 is installed on the seat, and the bottom of the support column 2 is rotatably connected to the connector 3. A rotating mechanism 4 is provided on the connector 3, and the rotating mechanism 4 is connected to the bottom of the support column 2. The rotation adjustment of the support column 2 is achieved through the rotating mechanism 4. In this embodiment, the support column 2 has two states, namely a vertical state and an inclined state. When the user sits on the seat, the support column 2 is in the vertical state. When the user adjusts the seat back to make the user lie down, the adjustable armrest makes the support column 2 in the inclined state, thereby better supporting the arm.

[0028] Specifically, the limiting rod 403 in the rotating mechanism 4 moves between the first limiting groove 4011 and the second limiting groove 4012, thereby realizing the switching between the inclined and vertical states of the support column 2. This switching is more convenient and faster than the existing handrails, without the need for slow adjustment, thus improving the convenience and comfort of the user.

[0029] The limiting part 401 is provided at the end of the connector 3 and is perpendicular to the connector 3. Furthermore, one end of the connector 3 is connected to the seat, and the limiting part 401 is connected to the other end of the connector 3. The limiting part 401 and the connector 3 are an integral structure. At the same time, the limiting part 401 is perpendicular to the connector 3, so that the support column 2 can rotate in the vertical direction, thereby preventing the limiting part 401 from tilting along the length direction of the connector 3.

[0030] The top of the limiting part 401 is provided with a protrusion 4013. The first limiting groove 4011 and the second limiting groove 4012 are respectively located at both ends of the protrusion 4013. The height of the second limiting groove 4012 is higher than that of the first limiting groove 4011. Furthermore, the protrusion 4013 is located at the middle of the top of the limiting part 401. The first limiting groove 4011 is located below the protrusion 4013, and the second limiting groove 4012 is located above the protrusion 4013. When the limiting rod 403 is located in the first limiting groove 4011, the support column 2 is in an inclined state. When the limiting rod 403 is located in the second limiting groove 4012, the support column 2 is in a vertical state, thereby realizing the conversion between the inclined and vertical states of the handrail.

[0031] A first limiting protrusion 4017 is provided at the end of the first limiting groove 4011 away from the protrusion 4013. When the limiting rod 403 moves into the first limiting groove 4011, the first limiting protrusion 4017 acts to limit the movement of the limiting rod 403, preventing the limiting rod 403 from disengaging from the first limiting groove 4011. In addition, a second limiting protrusion 4018 is provided at the end of the second limiting groove 4012 away from the protrusion 4013. When the limiting rod 403 moves into the second limiting groove 4012, the second limiting protrusion 4018 acts to limit the movement of the limiting rod 403, preventing the limiting rod 403 from disengaging from the second limiting groove 4012.

[0032] The limiting part 401 has a rotation center hole 4014, and a rotation shaft 4016 is provided in the rotation center hole 4014. The bottom end of the lifting column 201 is provided with a mating hole 2012 that is rotatably connected to the rotation shaft 4016. Furthermore, the rotation shaft 4016 is inserted into the rotation center hole 4014, and the end of the rotation shaft 4016 extends into the lifting column 201 and is inserted into the mating hole 2012. The rotation shaft 4016 is connected to the lifting column 201, and the support column 2 rotates around the rotation shaft 4016 as the rotation center.

[0033] The surface of the protrusion 4013 has an arc-shaped structure, and the surface of the protrusion 4013 is coaxially arranged with the rotation center hole 4014. Furthermore, the surface of the protrusion 4013 and the rotation center hole 4014 are located on the same axis. When the limiting rod 403 moves on the surface of the protrusion 4013, the distance between the limiting rod 403 and the rotation center hole 4014 remains unchanged. Moreover, the first limiting groove 4011 and the second limiting groove 4012 are all located on the same circumference as the surface of the protrusion 4013. This ensures that when the limiting rod 403 switches between the first limiting groove 4011 and the second limiting groove 4012, the distance between the limiting rod 403 and the rotation center hole 4014 remains unchanged, thus ensuring that there will be no jamming or stuck situation during the adjustment of the handrail.

[0034] The lifting column 201 is also provided with a mounting hole 2011 for installing the limiting rod 403. Furthermore, the mounting hole 2011 is located above the mating hole 2012. The limiting rod 403 is fixedly connected in the mounting hole 2011 and extends toward the limiting part 401.

[0035] The limiting part 401 is provided with a protective sleeve 402, and a positioning rod 4021 is provided inside the protective sleeve 402. The limiting part 401 is provided with a positioning hole 4015 connected to the positioning rod 4021. Furthermore, the protective sleeve 402 covers the limiting part 401, and the protective sleeve 402 is fixed by the cooperation of the positioning rod 4021 and the positioning hole 4015. At the same time, there are two positioning rods 4021, and there are also two positioning holes 4015 on the limiting part 401 that correspond to the positioning rods 4021.

[0036] The bottom of the support column 2 is also provided with a protective sleeve 202, which is sleeved on the lifting column 201. Furthermore, the protective sleeve 202 is sleeved on the bottom of the lifting column 201 and fixed on the support column 2, thereby protecting the lower end of the support column 2 and the lifting column 201.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0038] Although this document frequently uses reference numerals from the accompanying drawings, such as: handrail panel 1, support column 2, lifting column 201, mounting hole 2011, mating hole 2012, protective sleeve 202, connector 3, rotating mechanism 4, limiting part 401, first limiting groove 4011, second limiting groove 4012, protrusion 4013, rotation center hole 4014, positioning hole 4015, rotating shaft 4016, first limiting protrusion 4017, second limiting protrusion 4018, protective sleeve 402, positioning rod 4021, and limiting rod 403, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A rotating armrest for a seat, comprising an armrest panel (1), a support column (2), and a connector (3), wherein the support column (2) is provided with a lifting column (201), characterized in that, The support column (2) is rotatably connected to the connector (3). The support column (2) is provided with a vertical state and an inclined state. The connector (3) is provided with a rotating mechanism (4) for controlling the rotation of the support column (2). The rotating mechanism (4) includes a limiting part (401) and a limiting rod (403). The limiting part (401) is provided with a first limiting groove (4011) and a second limiting groove (4012). The limiting rod (403) is connected to the first limiting groove (4011) or the second limiting groove (4012) to realize the conversion of the support column (2) between the inclined and vertical states.

2. A rotating armrest for a seat according to claim 1, characterized in that, The limiting part (401) is disposed at the end of the connector (3), and the limiting part (401) is perpendicular to the connector (3).

3. A rotating armrest for a seat according to claim 1, characterized in that, The top of the limiting part (401) is provided with a protrusion (4013), and the first limiting groove (4011) and the second limiting groove (4012) are respectively located at both ends of the protrusion (4013), and the height of the second limiting groove (4012) is higher than that of the first limiting groove (4011).

4. A rotating armrest for a seat according to claim 3, characterized in that, When the limiting rod (403) is located in the first limiting groove (4011), the support column (2) is in an inclined state; when the limiting rod (403) is located in the second limiting groove (4012), the support column (2) is in a vertical state.

5. A rotating armrest for a seat according to claim 3, characterized in that, The limiting part (401) has a rotation center hole (4014), a rotation shaft (4016) is provided in the rotation center hole (4014), and the bottom end of the lifting column (201) is provided with a mating hole (2012) that is rotatably connected to the rotation shaft (4016).

6. A rotating armrest for a seat according to claim 5, characterized in that, The surface of the protrusion (4013) is an arc-shaped structure, and the surface of the protrusion (4013) is coaxially arranged with the rotation center hole (4014).

7. A rotating armrest for a seat according to claim 5, characterized in that, The first limiting groove (4011) and the second limiting groove (4012) are all located on the same circumference as the surface of the protrusion (4013).

8. A rotating armrest for a seat according to claim 1, characterized in that, The lifting column (201) is also provided with mounting holes (2011) for installing the limiting rod (403).

9. A rotating armrest for a seat according to claim 1, characterized in that, The limiting part (401) is provided with a protective sleeve (402), and a positioning rod (4021) is provided inside the protective sleeve (402). The limiting part (401) is provided with a positioning hole (4015) that is connected to the positioning rod (4021).

10. A rotating armrest for a seat according to claim 1, characterized in that, The bottom of the support column (2) is also provided with a protective sleeve (202), which is fitted onto the lifting column (201).

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