Turnover type seat armrest and seat

Abstract

The utility model provides a turnover type seat armrest and a seat, and the turnover type seat armrest comprises an armrest mounting part which is fixedly arranged on a seat body; the rotary connecting part is rotationally arranged on the handrail mounting part around a rotary middle shaft, and the rotary middle shaft extends in the first direction; the armrest frame is connected to the rotary connecting part, the armrest frame comprises an elbow support part extending in the first direction, and the extending direction of the elbow support part deviates from the rotary middle shaft; the limiting assembly is arranged on the rotary connecting part and the armrest mounting part and used for limiting the rotary connecting part when the rotary connecting part rotates to a preset position; the elbow support part rotates around the rotating center shaft, and has an accommodating state in which the elbow support part is accommodated in the side face of the seat body and an unfolding state in which the elbow support part is suspended above the side face of the seat body. The problem that in the prior art, the armrest cannot be effectively stored to the side face of the seat body after being folded, so that the armrest is inconvenient to use on the application occasion without the armrest is solved.

Description

Technical Field

[0001] This application relates to the field of seat structure technology, and more particularly to a flip-up seat armrest and seat. Background Technology

[0002] Armrests are an important component of a seat, primarily used to support the user's arms. Existing seat armrests are generally divided into fixed or foldable types. Fixed armrests are fixed to the left and right sides of the seat and cannot move; some seats use foldable armrests to facilitate user entry and exit (e.g., car seats) or to facilitate seat folding (wheelchairs).

[0003] However, current movable folding armrests can typically only swing up and down to raise or lower the armrest, as in car seats; or fold forward and backward, as in wheelchairs. When folded, the armrests still occupy space on the outside of the seat body and cannot be folded and hidden inside the seat surface. This makes them inconvenient in some armrest-free applications, such as preventing office chairs from being placed side-by-side for lunch breaks, and also making them inconvenient to transport when placed side-by-side.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a flip-up armrest and a seat, which solves the problem that the armrest cannot be folded and hidden inside the seat surface in the prior art, resulting in inconvenience in use in applications without armrests.

[0006] On the one hand, this application provides a flip-up seat armrest for rotating on the seat body, wherein the flip-up seat armrest includes: an armrest mounting part, which is fixedly mounted on the seat body;

[0007] A rotating connection part is rotatably mounted on the handrail mounting part about a central axis of rotation, wherein the central axis of rotation extends along a first direction;

[0008] The handrail is connected to the rotating connection part, and the handrail includes an elbow support extending in a first direction, the extension direction of which is offset from the rotation axis.

[0009] A limiting component is provided on the rotating connection and the handrail mounting part to limit the rotating connection when it rotates to a predetermined position.

[0010] The elbow rest rotates around a central axis to have a stowed state that is tucked into the side of the seat body and an extended state that is suspended above the side of the seat body.

[0011] Optionally, the limiting component includes: a limiting hole, which is formed on the rotary connection portion;

[0012] An anti-rotation part is radially movable on the handrail mounting part;

[0013] Elastic element, the elastic element connects the anti-rotation part and the handrail mounting part;

[0014] The rotating connecting part moves along the first direction by being pushed by the elbow support part, so that the anti-rotation part moves along the first direction into the limiting hole or into the rotating connecting part.

[0015] Optionally, the anti-rotation part includes a stop block, which has a guide slope on one side in the first direction and limit sides on both sides perpendicular to the first direction. The limit sides are used to abut against the inner wall of the limit hole to limit the rotation of the rotating connection part.

[0016] The elastic element includes a spring, which is disposed in the handrail mounting part and, through elasticity, causes the stop block to move radially in and out of the handrail mounting part.

[0017] Optionally, a limit stop is provided at one end of the handrail mounting part;

[0018] The limiting component also includes an elastic return part, which is disposed on the rotary connection part;

[0019] The rotating connecting part moves along the first direction by being pushed by the elbow support part, so that the elastic return part elastically extends and retracts on the limit stop.

[0020] Optionally, the elastic return section includes multiple folding springs;

[0021] Multiple folding spring clips are arranged around the rotating connecting part.

[0022] Optionally, the rotary connection includes: a connecting sleeve having a hollow hole;

[0023] The handrail mounting section includes: a fixing tube, which has a cable routing hole;

[0024] The connecting sleeve is fitted onto the fixed insertion tube and can rotate around the fixed insertion tube.

[0025] Optionally, the handrail frame also includes: a handle connection part, one end of which is connected to a rotating connection part, and the other end is offset from the rotation axis and connected to an elbow support part;

[0026] The angle between the handle connection and the elbow support is a right angle or an obtuse angle.

[0027] In the unfolded state, the elbow support and the rotating connection are spaced apart by a predetermined length in the left-right direction.

[0028] Optionally, the armrest is equipped with a control device for sending control commands to adjust the seat body.

[0029] Optionally, the control device includes a touch panel located on the surface of the handrail;

[0030] The touch panel has a power button, a seat height adjustment button, and a seat back angle adjustment button to send corresponding adjustment commands to the seat body.

[0031] On the other hand, this application also proposes a seat and two flip-up seat armrests as described above, with the two flip-up seat armrests respectively disposed on the left and right sides of the seat body;

[0032] The armrest mounting part of the flip-up seat armrest is fixedly mounted on the seat body, and the rotating connecting part of the flip-up seat armrest is rotatably mounted on the armrest mounting part.

[0033] The left and right sides of the seat body are provided with receiving slots, which are used to accommodate the armrest frame of the flip-up seat armrest.

[0034] Beneficial Effects: This application discloses a flip-up seat armrest and seat. The flip-up seat armrest is mounted on the seat body via an armrest mounting part. An armrest frame is installed on a rotating connecting part, allowing the armrest frame to rotate around the central axis of the rotating connecting part. This allows the armrest frame to have two states: a retracted state (folded into the side of the seat body) and an unfolded state (suspended above the side of the seat body). In the retracted state, the armrest frame can be stored inside the side of the seat body, leaving the sides of the seat body empty to fully utilize the space on both sides. This is suitable for seats with space requirements, especially in applications without armrests. Furthermore, the armrest frame can be stored inside the side of the seat body, facilitating the folding and storage of the entire seat. When the armrest frame is in the unfolded state, it rotates and stands upright on the left and right sides of the seat body. A limiting component limits the rotation of the rotating connecting part to a predetermined position, locking the rotating connecting part and preventing it from rotating, thus achieving the armrest function. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a seat according to an embodiment of this application;

[0036] Figure 2 This is a structural schematic diagram of a flip-up seat armrest according to an embodiment of this application;

[0037] Figure 3 This is a schematic diagram of the disassembled structure of a flip-up seat armrest according to an embodiment of this application;

[0038] Figure 4This is a cross-sectional view of the limiting component portion of a flip-up seat armrest according to an embodiment of this application.

[0039] In the diagram: 10, Flip-up armrest; 100, Armrest mounting part; 110, Fixing tube; 120, Limiting block; 121, Locking hole; 200, Rotating connection part; 210, Connecting sleeve; 220, Elastic return part; 221, Folding spring; 300, Armrest frame; 310, Elbow support part; 320, Handle connection part; 400, Limiting component; 410, Limiting hole; 420, Anti-rotation part; 421, Stop block; 422, Guide slope; 430, Elastic element; 500, Control device; 510, Touch panel; 20, Seat body; 21, Receiving slot. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this application clearer and more explicit, the following detailed description of this application is provided with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0041] Current chair armrests come in various forms, some even adjustable. However, most armrest structures only allow for height and angle adjustments, failing to fold and conceal the armrests within the seat. This not only prevents office chairs from being arranged side-by-side for lunch breaks but also hinders transportation. Furthermore, the adjustment functions of many functional chairs are scattered in different locations, such as the seat base, affecting aesthetics and making operation inconvenient for users. To address these issues, the specific embodiments proposed in this application are as follows:

[0042] Example 1

[0043] like Figure 1 As shown, this embodiment proposes a flip-up seat armrest 10, which is rotatably mounted on the seat body 20. For ease of structural description, the left-right, front-back, and up-down directions when the seat body is in use are used as the directions for structural description in this embodiment. Therefore, as... Figure 2 , Figure 3As shown, the flip-up seat armrest 10 of this embodiment mainly includes: an armrest mounting part 100, a rotating connecting part 200, an armrest frame 300, and a limiting component 400. The armrest mounting part 100 is fixedly mounted on the seat body 20. In actual use, the armrest mounting part 100 can also be installed on the seat body 20 first, or it can be integrated as part of the seat body 20. The rotating connecting part 200 is rotatably mounted on the armrest mounting part 100 about a central axis of rotation, wherein the central axis of rotation extends along a first direction; in this embodiment, the first direction is the front-back direction, so the rotating connecting part 200 extends a predetermined length in the front-back direction and is rotatably connected to the armrest mounting part 100 in the front-back direction. The armrest frame 300 is connected to the rotating connecting part 200. The armrest frame 300 includes an elbow support part 310 extending along the first direction. The elbow support part 310 extends a predetermined length in the front-back direction, and can support the user's arms when the user sits on the seat body 20. The elbow support 310 extends vertically away from the rotation axis; the armrest frame 300 functions as an armrest via the elbow support 310, allowing the rotating connecting part 200 to rotate and thus enabling the armrest frame 300 to flip. A limiting assembly 400 is provided on the rotating connecting part 200 and the armrest mounting part 100, and is used to limit the rotation of the rotating connecting part 200 to a predetermined position. The elbow support 310 rotates about the rotation axis to have a retracted state (folded into the side of the seat body 20) and an extended state (suspended above the side of the seat body 20).

[0044] like Figure 1 , Figure 2 As shown, in the stowed state, the armrest frame 300 can be stored inside the side of the seat body 20, thus leaving the sides of the seat body 20 empty and making full use of the space on both sides of the seat body 20. This is suitable for seats with space requirements, and is especially convenient in applications without armrests. Furthermore, the armrest frame 300 can be stored inside the side of the seat body 20, which also facilitates the folding, storage, and transportation of the entire seat. When the armrest frame 300 is in the unfolded state, it rotates and stands upright on the left and right sides of the seat body 20. The rotating connecting part 200 is locked in place by the limiting component 400, preventing it from rotating, thereby achieving the armrest function.

[0045] Therefore, in this embodiment, the flip-up seat armrest 10 is mounted on the seat body 20 via the armrest mounting part 100. By providing the armrest frame 300 on the rotating connecting part 200, the armrest frame 300 can rotate around the central axis of rotation of the rotating connecting part 200. In this way, the armrest frame 300 can be stored on the side of the seat body 20, thereby leaving the sides of the seat body 20 empty, which facilitates storage, transportation, and makes it more convenient to use in applications without armrests. For example, multiple seats can be spliced ​​together to expand the seat space.

[0046] like Figure 2 , Figure 3 As shown, the handrail frame 300 of this embodiment further includes a handle connecting part 320, one end of which is connected to the rotating connecting part 200, and the other end is offset from the rotation axis and connected to the elbow support part 310. The front end of the handle connecting part 320 is connected to the elbow support part 310, and the rear end is connected to the rotating connecting part 200. The handle connecting part 320 can take various shapes, and the included angle between the handle connecting part 320 and the elbow support part 310 is a right angle or an obtuse angle, which can support the elbow support part 310 and make the elbow support part 310 offset from the rotating connecting part 200 in the vertical direction. In this embodiment, the elbow support part 310 can take a square structure and have rounded corners at the edges to make the structure more aesthetically pleasing.

[0047] like Figure 2 , Figure 3 As shown, further, in the unfolded state, the elbow support 310 and the rotating connection 200 are spaced apart by a predetermined length in the left-right direction. Therefore, when the armrest 300 is erected on the left and right sides of the seat body 20, the distance between the two elbow supports 310 in the outward unfolded state is greater than the width of the seat body 20, thereby providing a larger seating space between the left and right armrests 300, making it more comfortable for the user to sit in the larger seating space.

[0048] like Figure 2 , Figure 3 , Figure 4As shown, further, the rotating connecting part 200 of this embodiment specifically includes a connecting sleeve 210, which has a hollow hole. The armrest mounting part 100 specifically includes a fixing insert 110, which has a wiring hole for easy wiring. The fixing insert 110 is fixed to the seat body 20, and the connecting sleeve 210 is fitted onto the fixing insert 110 and can rotate around the fixing insert 110. In the specific structure, insertion holes can be opened on the left and right sides of the seat plate, and the connecting sleeve 210 is fixed in the insertion holes, with an installation space between it and the insertion holes. This allows the connecting sleeve 210 to be directly fitted onto the outside of the fixing insert 110 and inserted into the insertion hole, and the connecting sleeve 210 can rotate. This makes the installation process of the rotating connecting part 200 and the armrest mounting part 100 more convenient.

[0049] like Figure 2 , Figure 3 , Figure 4 As shown, the limiting component 400 in this embodiment further includes: a limiting hole 410, an anti-rotation portion 420, and an elastic member 430. The limiting hole 410 is formed on the outer wall of the rotating connecting portion 200. The limiting hole 410 can be elongated and extends in the front-back direction. The limiting hole 410 is used to accommodate the anti-rotation portion 420. By moving the rotating connecting portion 200 back and forth, the anti-rotation portion 420 can slide within the limiting hole 410. The anti-rotation portion 420 is radially movably disposed on the handrail mounting portion 100, and the elastic member 430 connects the anti-rotation portion 420 and the handrail mounting portion 100. The anti-rotation part 420 is pushed by the elastic force of the elastic member 430 and protrudes from the side of the armrest mounting part 100. When the anti-rotation part 420 is pressed, it enters the armrest mounting part 100 radially, while the elastic member 430 is compressed. When the anti-rotation part 420 is not pressed, it moves radially outward under the push of the elastic member 430, thus protruding from the side of the armrest mounting part 100. Therefore, when the rotating connecting part 200 moves back and forth, the limiting hole 410 moves back and forth. During the movement, the anti-rotation part 420 can be pressed downward, causing the anti-rotation part 420 to descend into the armrest mounting part 100, disengage from the limiting hole 410, and enter the hollow hole of the rotating connecting part 200. Freed from the constraint of the limiting hole 410, the rotating connecting part 200 can rotate on the armrest mounting part 100, thereby realizing the function of the armrest frame 300 being accommodated in the side of the seat body 20. When unfolding, the handrail frame 300 is rotated to rotate the rotating connecting part 200 to a predetermined position (a limit block is provided at the corresponding position). This position is also the position where the handrail frame 300 is unfolded vertically. Then, the handrail frame 300 is moved in the front-back direction, which drives the rotating connecting part 200 to move back and forth. This allows the anti-rotation part 420 to move from the hollow hole of the rotating connecting part 200 into the limiting hole 410. By limiting the rotation of the rotating connecting part 200 through the limiting hole 410, the rotating connecting part 200 cannot be rotated, and thus the handrail frame 300 cannot be rotated either.

[0050] like Figure 2 , Figure 3 , Figure 4 As shown, when the user needs to adjust the position of the handrail frame 300, pressing the elbow support 310 backward causes the handrail frame 300 to move the connecting sleeve 210 backward. The backward-moving limiting hole 410 presses against the anti-rotation part 420, causing the anti-rotation part 420 to slide into the connecting sleeve 210, thereby allowing the handrail frame 300 to rotate, realizing the extension and retraction of the handrail frame 300. Conversely, the rotation of the handrail frame 300 can be limited in the extended position. In the specific structure, multiple limiting components 400 can be provided, and multiple limiting components 400 can be arranged around the handrail mounting part 100, thus making the limiting more stable.

[0051] like Figure 2 , Figure 3 , Figure 4 As shown, further, the anti-rotation part 420 of this embodiment specifically includes a stop block 421. The stop block 421 has a guide slope 422 on one side located in the first direction and limit sides on both sides perpendicular to the first direction. The limit sides are used to abut against the inner wall of the limit hole 410 to limit the rotation of the rotating connection part 200. In the specific structure, the stop block 421 has a right trapezoidal structure. The surface away from the fixed insertion tube 110 is the upper surface, and the surface close to the fixed insertion tube 110 is the lower surface. The side length of the upper surface is smaller than the side length of the lower surface. The guide slope 422 is arranged to gradually move away from the rotation axis in the direction from front to back. Thus, through the guidance of the guide slope 422, the rearward moving connection sleeve 210 gradually squeezes the stop block 421, so that the stop block 421 moves radially toward the fixed insertion tube 110. When the stop block 421 is located within the limiting hole 410, the limiting sides on both the left and right sides engage with the inner walls of the limiting hole 410 on both the left and right sides, thus preventing the connecting sleeve 210 from rotating on the fixed insertion tube 110. In this embodiment, the elastic element 430 includes a spring, which is disposed within the handrail mounting portion 100 and, through elasticity, causes the stop block 421 to move radially in and out of the handrail mounting portion 100. The spring is arranged radially along the fixed insertion tube 110, thereby applying a spring force to the stop block 421, causing it to move radially outward along the fixed insertion tube 110.

[0052] like Figure 2 , Figure 3 , Figure 4As shown, further, a limit stop 120 is provided at one end of the handrail mounting portion 100. Specifically, the limit stop 120 is located at the rear end of the fixed insertion tube 110 and protrudes from the outer wall of the fixed insertion tube 110. The limiting assembly 400 also includes an elastic return portion 220, which is disposed on the rotary connection portion 200 and can abut against the limit stop 120. The elastic return portion 220 applies a spring force to the rotary connection portion 200, causing the rotary connection portion 200 to move forward.

[0053] like Figure 2 , Figure 3 , Figure 4 As shown, the rotating connecting part 200 moves along the first direction by being pushed by the elbow support part 310, so that the elastic return part 220 elastically extends and retracts on the limiting block 120. When the user needs to adjust the position of the armrest 300 and presses the elbow support part 310 backward, not only is the anti-rotation part 420 squeezed from the limiting hole 410 into the hollow hole inside the connecting sleeve 210, but the connecting sleeve 210 also presses the elastic return part 220 backward, causing the elastic return part 220 to contract backward and generate a large elastic force. When the armrest 300 rotates to the left and right sides of the seat body 20, the armrest 300 can be stored through the left and right sides, so that the elastic return part 220 remains in a compressed state. When the armrest 300 is extended and flipped to the top of the seat body 20 and is in the extended state, the elastic return part 220 is compressed and pushes the connecting sleeve 210 forward, thereby causing the limiting hole 410 on the connecting sleeve 210 to move forward, and then the stop block 421 located in the connecting sleeve 210 enters the limiting hole 410. Under the push of the spring, the stop block 421 is locked in the limiting hole 410, thus achieving the limiting.

[0054] like Figure 2 , Figure 3 , Figure 4 As shown, the elastic return part 220 can further adopt various structures. For example, the elastic return part 220 specifically includes multiple folding springs 221, which are arranged around the rotating connecting part 200. Correspondingly, a limiting block 120 is arranged around the outer wall of the handrail mounting part 100, so that the rear ends of the multiple folding springs 221 can abut against the limiting block, making the force on the elastic return part 220 more even and the pushing of the rotating connecting part 200 more stable. Alternatively, a locking hole 121 can be formed on the front surface of the limiting block, and the rear ends of the folding springs 221 can be embedded in the locking hole 121, making the installation of the elastic return part 220 more stable.

[0055] like Figure 1 , Figure 3As shown, in this embodiment, a control device 500 is further provided on the armrest frame 300. The control device 500 is used to send control commands to adjust the seat body 20. In the specific structure, the elbow support 310 extends in the front-to-back direction and is horizontally arranged. A hollow area is provided inside, so that the control device 500 can be fixed on the elbow support 310. The control device 500 has a control part located on the outer surface of the elbow support 310 and a circuit board located in the hollow area of ​​the elbow support 310. The control part is set on the surface of the elbow support 310, so as to facilitate the user's operation. The handle connection part 320 in this embodiment is also hollow, so that it can communicate with the hollow elbow support 310 and the hollow rotating connection part 200. When the rotating connection part 200 is rotatably set on the armrest mounting part 100, since the armrest mounting part 100 has a wiring hole, the circuit board and the transmission component inside the seat body 20 can be connected by a cable. The transmission components include at least one of the following: seat height adjustment, backrest angle adjustment, seat cushion sliding level adjustment, and footrest position adjustment. The seat height, backrest angle, seat level position, and footrest position can be adjusted separately via a circuit board.

[0056] like Figure 1 , Figure 3 As shown, the control unit includes a touch panel 510, which is located on the surface of the armrest 300. The touch panel 510 has a power button, a seat height adjustment button, and a seat back angle adjustment button to send corresponding adjustment commands to the seat body 20. Specifically, the circuit board outputs corresponding adjustment commands to the transmission components that adjust the seat based on the input signals from the touch panel 510, thereby controlling the seat functions. In use, pressing the corresponding buttons adjusts the seat height, backrest angle, etc.

[0057] Example 2

[0058] like Figure 1 , Figure 2 As shown, this embodiment proposes a chair and two flip-up armrests 10 as described above, which are respectively disposed on the left and right sides of the chair body 20. The armrest mounting portion 100 of the flip-up armrest 10 is fixedly mounted on the chair body 20, and the rotating connecting portion 200 of the flip-up armrest 10 is rotatably mounted on the armrest mounting portion 100. One of the flip-up armrests 10 may not have a control device 500 on its armrest frame 300, while the other flip-up armrest 10 may have a control device 500 on its armrest frame 300. Alternatively, neither of the two flip-up armrests 10 may have a control device 500 on its armrest frame 300, or both may have a control device 500 on their armrest frames 300. Therefore, this chair can be used for functions such as massage, and can also be used as a regular office chair, with broad application prospects.

[0059] like Figure 1 As shown, receiving slots 21 are provided on the left and right sides of the seat body 20. The receiving slots 21 are used to accommodate the armrest frame 300 of the flip-up seat armrest 10. This allows the armrest frame 300 in the receiving state to be concealed in the receiving slots 21 and not to protrude from the outside of the seat body 20.

[0060] In summary, the flip-up armrest and seat proposed in this application allow the armrests to be flipped to the left and right sides of the seat and stored in a receiving slot, improving space utilization and making it suitable for seats with space requirements. Furthermore, when flipped outwards, the space between the two armrests is larger than the seat itself, making the occupant more comfortable. Simultaneously, the seat control functions are centralized on the armrests, and wiring channels are provided within the internal space for power cord routing, simplifying the seat structure and enhancing its aesthetics while facilitating user operation.

[0061] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 application.

Claims

1. A flip-up armrest for rotating on the seat body, characterized in that, The flip-up seat armrest includes an armrest mounting part, which is fixedly mounted on the seat body; A rotating connection portion is rotatably disposed on the armrest mounting portion about a central axis of rotation, wherein the central axis of rotation extends along a first direction; A handrail frame connected to the rotating connection portion, the handrail frame including an elbow support portion extending along a first direction, the extending direction of the elbow support portion being offset from the rotation axis; A limiting component is disposed on the rotating connection and the handrail mounting portion, and is used to limit the rotating connection to a predetermined position when it rotates to a predetermined position. The elbow rest can be rotated around the central axis of rotation to have a retracted state that is stored in the side of the seat body and an extended state that is suspended above the side of the seat body.

2. The flip-up seat armrest according to claim 1, characterized in that, The limiting component includes: a limiting hole, which is formed on the rotary connecting part; An anti-rotation part is radially movably disposed on the handrail mounting part; An elastic element connects the anti-rotation part and the handrail mounting part; The rotating connecting part moves along a first direction by being pushed by the elbow support part, so that the anti-rotation part moves along the first direction into the limiting hole or into the rotating connecting part.

3. The flip-up armrest of the seat according to claim 2, characterized in that, The anti-rotation part includes a stop block. The stop block has a guide slope on one side in the first direction and limit sides on both sides perpendicular to the first direction. The limit sides are used to abut against the inner wall of the limit hole to limit the rotation of the rotating connection part. The elastic element includes a spring, which is disposed within the handrail mounting portion and, through elasticity, causes the stop block to move radially in and out of the handrail mounting portion.

4. The flip-up armrest of the seat according to claim 2, characterized in that, A limit stop is provided at one end of the handrail mounting part; The limiting component further includes an elastic return part, which is disposed on the rotary connection part; The rotating connecting part moves along the first direction by being pushed by the elbow support part, so that the elastic return part elastically extends and retracts on the limiting block.

5. The flip-up armrest of the seat according to claim 4, characterized in that, The elastic return section includes multiple folding spring pieces; Multiple folding springs are arranged around the rotating connecting portion.

6. The flip-up armrest of the seat according to claim 1, characterized in that, The rotary connection includes: a connecting sleeve having a hollow hole; The handrail mounting part includes: a fixing tube, the fixing tube having a wiring hole; The connecting sleeve is fitted onto the fixed insertion tube and can rotate around the fixed insertion tube.

7. The flip-up armrest of the seat according to claim 1, characterized in that, The handrail frame further includes: a handle connecting part, one end of which is connected to the rotating connecting part, and the other end is offset from the rotating central axis and connected to the elbow support part; The included angle between the handle connection and the elbow support is a right angle or an obtuse angle. In the unfolded state, the elbow support and the rotating connection are spaced apart by a predetermined length in the left-right direction.

8. The flip-up armrest according to any one of claims 1-7, characterized in that, The armrest is equipped with a control device, which is used to send control commands to adjust the seat body.

9. The flip-up armrest of the seat according to claim 8, characterized in that, The control device includes a touch panel located on the surface of the handrail frame; The touch panel is equipped with a power switch, a seat height adjustment button, and a seat back angle adjustment button to send corresponding adjustment commands to the seat body.

10. A type of seat, characterized in that, The seat includes a seat body and two flip-up armrests as described in any one of claims 1-8, wherein the two flip-up armrests are respectively disposed on the left and right sides of the seat body; The armrest mounting part of the flip-up seat armrest is fixedly mounted on the seat body, and the rotating connecting part of the flip-up seat armrest is rotatably mounted on the armrest mounting part. The left and right sides of the seat body are provided with receiving grooves, which are used to accommodate the armrest frame of the flip-up seat armrest.

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