Seat Armrest with Display Device and Seat

Abstract

The present application discloses a seat armrest with a display device and a seat, relating to the technical field of automobiles. The seat armrest includes a connection unit, a moving unit, and a stretching unit. Among them, a display device is provided on the moving unit, and the moving unit is connected to the connection unit by the stretching unit; the stretching unit includes at least one telescopic rod and a connecting rod connected to the telescopic rod, and a rotating part is further provided on the connecting rod, and the rotating part is connected to the moving unit; wherein, when the telescopic rod expands and contracts, the distance between the moving unit and the stretching unit is changed; the moving unit rotates relative to the connection unit through the rotating part. For the seat armrest with a display device and the seat disclosed in the present application, the front end of the seat armrest can be stretched and rotated, so as to meet the needs of the user group for the usage modes and interaction modes of the display device in different application scenarios.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly relates to a seat armrest with a display device and a seat. Background Art

[0002] With the continuous development of artificial intelligence and Internet technologies, in the automotive industry, a multi-screen cockpit is expected to redefine human-machine interaction and gradually become the core of the human-machine interaction experience. A multi-screen cockpit generally integrates the multi-screen fusion of a full liquid crystal instrument, a central control screen, and rear seat entertainment, thereby bringing a more intelligent interaction experience to users.

[0003] In related technologies, a traditional in-vehicle display device is usually fixed at a designated position, and the display state of the display device relative to the user, such as the tilt angle and the distance from the user, etc., is also fixed. Therefore, the user can only adjust their own posture to adapt to the display state of the display device.

[0004] In the process of implementing the present application, the inventors found that the related technologies have at least the following problems: The display device cannot be adjusted, so it is difficult to meet the needs of the user group for the usage methods and interaction methods of the display device in different application scenarios. Summary of the Invention

[0005] An embodiment of the present application provides a seat armrest with a display device and a seat. The front end of the seat armrest can be stretched and rotated, thereby meeting the needs of the user group for the usage methods and interaction methods of the display device in different application scenarios. The specific technical solutions are as follows:

[0006] On the one hand, an embodiment of the present application provides a seat armrest with a display device. The seat armrest includes a connection unit, a moving unit, and a stretching unit; wherein,

[0007] A display device is arranged on the moving unit, and the moving unit is connected to the connection unit by the stretching unit;

[0008] The stretching unit includes at least one telescopic rod and a connecting rod connected to the telescopic rod. A rotating part is further arranged on the connecting rod, and the rotating part is connected to the moving unit;

[0009] Wherein, the telescopic rod is configured to change the distance between the moving unit and the stretching unit when telescoping; the moving unit rotates relative to the connection unit through the rotating part.

[0010] In an implementation manner of the embodiment of the present application,

[0011] The rotating part includes a first cylinder connected to the connecting rod. A second cylinder is arranged inside the first cylinder, and the second cylinder is connected to the moving unit;

[0012] The moving unit can rotate around the second cylinder, or the moving unit drives the second cylinder to rotate inside the first cylinder.

[0013] In one implementation of the embodiment of the present application, the telescopic rod includes a sleeve rod and a moving rod received in the sleeve rod;

[0014] The sleeve rod includes a first rod portion, a second rod portion and a third rod portion connected in sequence, and the first rod portion is fixedly arranged inside the connecting unit;

[0015] One end of the second rod portion is connected to the first rod portion inside the connecting unit, and the other end of the second rod portion is connected to the third rod portion through a hole in the bottom of the connecting unit;

[0016] The third rod portion is arranged at the bottom of the connecting unit, and the third rod portion extends along the bottom of the connecting unit towards the moving unit;

[0017] The moving rod is connected to the third rod portion, and the moving rod can move axially inside the third rod portion along the third rod portion.

[0018] In one implementation of the embodiment of the present application, the relative side surface of the moving unit in contact with the connecting unit is an arc surface;

[0019] The arc surface of the moving unit protrudes towards the connecting unit, and the arc surface of the connecting unit is recessed towards the inside of the connecting unit.

[0020] In one implementation of the embodiment of the present application, a rotating shaft is arranged inside the connecting unit, and the connecting unit can rotate through the rotating shaft to drive the moving unit to move away from or close to the backrest of the seat;

[0021] The display device is arranged on the side surface of the moving unit facing the armrest box.

[0022] In one implementation of the embodiment of the present application, the rotating shaft is horizontally arranged inside the connecting unit, and both ends of the rotating shaft extend to the outside of the connecting unit;

[0023] A through hole is arranged on the first rod portion, and the rotating shaft passes through the through hole and is connected to the first rod portion.

[0024] In one implementation of the embodiment of the present application, a limiting shaft parallel to the fixed shaft is further arranged inside the connecting unit, and both ends of the limiting shaft extend to the outside of the connecting unit;

[0025] A notch is provided at the top end of the first rod portion, and the limiting shaft passes through the notch and is connected to the first rod portion.

[0026] In one implementation of the embodiment of the present application, a limiting device is provided inside the telescopic rod, and the limiting device is used to limit the sliding position of the moving rod.

[0027] On the other hand, the embodiment of the present application provides a seat, a seat back, a seat cushion and the above-mentioned seat armrest;

[0028] One end of the seat armrest away from the moving unit is connected to an armrest box, the armrest box is longitudinally arranged on one side of the seat back, and the seat armrest can be received in the armrest box.

[0029] In one implementation of the embodiment of the present application, a limiting notch is provided at the contact position between the armrest box and the limiting shaft, and the limiting notch is used to limit the rotation range of the seat armrest relative to the armrest box.

[0030] The beneficial effects of the embodiment of the present application at least include:

[0031] The seat armrest and the seat provided with a display device in the embodiment of the present application, the armrest includes a connection unit, a moving unit and a stretching unit. The moving unit can change the distance between it and the connection unit through the telescopic rod in the stretching unit; it can also rotate relative to the connection unit through the rotating part in the stretching unit. A display device is provided on the moving unit, so that the orientation and viewing angle of the display device relative to the user can be adjusted, meeting the needs of the user group for the usage methods and interaction methods of the display device in different application scenarios. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 An isometric structural diagram of a stretched and rotated state of a seat armrest provided by an embodiment of the present application;

[0034] Figure 2 An isometric structural diagram of an initial state of a seat armrest provided by an embodiment of the present application;

[0035] Figure 3 An isometric structural diagram of a stretched state of a seat armrest provided by an embodiment of the present application;

[0036] Figure 4Front view structural schematic diagram of a stretched state of a seat armrest provided by an embodiment of the present application;

[0037] Figure 5 Rear view structural schematic diagram of a stretched state of a seat armrest provided by an embodiment of the present application;

[0038] Figure 6 Cross-sectional structural schematic diagram of a stretched state of a seat armrest provided by an embodiment of the present application;

[0039] Figure 7 For Figure 6 Partial enlarged structural schematic diagram of the rotating part in;

[0040] Figure 8 Isometric structural schematic diagram of a rotating state of a seat armrest provided by an embodiment of the present application;

[0041] Figure 9 Rear view structural schematic diagram of a rotating state of a seat armrest provided by an embodiment of the present application;

[0042] Figure 10 Structural schematic diagram of a control switch of a seat armrest provided by an embodiment of the present application;

[0043] Figure 11 Structural schematic diagram of an armrest box of a seat provided by an embodiment of the present application;

[0044] Figure 12 Schematic diagram of a storage state of a seat provided by an embodiment of the present application;

[0045] Figure 13 Schematic diagram of an open state of a seat provided by an embodiment of the present application.

[0046] The reference numerals respectively represent:

[0047] 1, display device; 2, seat armrest; 21, connection unit; 22, moving unit; 23, stretching unit; 231, telescopic rod; 2311, sleeve rod; 23111, first rod portion; 23112, second rod portion; 23113, third rod portion; 2312, moving rod; 2313, limiting device; 23131, first limiting block; 23132, second limiting block; 232, connecting rod; 233, rotating part; 2331, first cylinder; 2332, second cylinder; 234, moving switch; 235, spring; 236, lifting device; 237, buckle; 24, armrest box; 241, seat frame; 2411, limiting notch; 25, rotating shaft; 26, limiting shaft. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of this application more clear, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0049] An embodiment of this application provides a display device. As Figure 1 shown in 4 Figures 4, 5, and 6, the seat armrest 2 includes a connection unit 21, a moving unit 22, and a stretching unit 23. A display device 1 is provided on the moving unit 22, and the moving unit 22 is connected to the connection unit 21 by the stretching unit 23.

[0050] The stretching unit 23 includes two telescopic rods 231 and a connecting rod 232 connected to the telescopic rods 231. A rotating part 233 is further provided on the connecting rod 232, and the rotating part 233 is connected to the moving unit 22. Figure 2 As shown in 3 Figures 7 and 8, the telescopic rods 231 are configured to change the distance between the moving unit 22 and the connection unit 21 when telescoping. The moving unit 22 rotates relative to the connection unit 21 through the rotating part 233. In other embodiments of this application, the stretching unit may also include only one telescopic rod or multiple telescopic rods.

[0051] The seat armrest provided with a display device according to the embodiment of this application, the seat armrest 2 includes a connection unit 21, a moving unit 22, and a stretching unit 23. The moving unit 22 can change its distance from the connection unit 21 through the telescopic rods 231 in the stretching unit 23; it can also rotate relative to the connection unit 21 through the rotating part 233 in the stretching unit 23. A display device 1 is provided on the moving unit 22, so that the orientation and viewing angle of the display device 1 relative to the user can be adjusted, meeting the usage and interaction requirements of different application scenarios of the display device by the user group.

[0052] In some embodiments of this application, as Figure 7 shown in

[0053] In other embodiments of the present application, two third limiting blocks may be further provided on the inner wall of the first cylinder, and a fourth limiting block may be provided on the outer wall of the second cylinder. The fourth limiting block moves between the two third limiting blocks. The fourth limiting block and the third limiting blocks are used to limit the rotation range of the moving unit. The included angle between the line connecting the centers of the two third limiting blocks and the center of the second cylinder does not exceed 150°, that is, the maximum range within which the moving unit 22 can rotate left and right relative to the stretching unit is 75°. Optionally, the maximum range within which the moving unit 22 can rotate left and right relative to the stretching unit is 45°.

[0054] Further, to enable the longitudinal angle of the moving unit to be adjustable, a rotating rod may be provided in the middle of the connecting rod. The rotating rod can rotate relative to both ends of the connecting rod, and the first cylinder is fixedly connected to the rotating rod. When the seat is in the horizontal position, both ends of the rotating rod can rotate up and down inside the connecting rod, or the rotating rod is sleeved outside the connecting rod and rotates up and down around the connecting rod, so that the moving unit drives the rotating part to rotate on the connecting rod, realizing the adjustment of the longitudinal angle of the display device. A positioning device may also be provided at the connection between the rotating rod and the connecting rod to fix the longitudinal angle of the moving unit.

[0055] In the embodiments of the present application, as Figure 5 shown, the stretching unit 23 may include two telescopic rods 231 arranged in parallel. The first end of the telescopic rod 231 may be provided at the bottom of the connecting unit 21, and the second end may be provided at the bottom of the moving unit 22. A connecting rod 232 may be provided between the second ends of the two telescopic rods. The axial direction of the connecting rod 232 is perpendicular to the axial direction of the telescopic rod 231. Both ends of the connecting rod 232 may be bent towards the second ends of the two telescopic rods 231 respectively.

[0056] As Figure 6 shown, the telescopic rod 231 may include a sleeve rod 2311 and a moving rod 2312 received in the sleeve rod 2311. As Figure 8 shown, when the opposite sides of the moving unit 22 and the connecting unit 21 are in contact, the moving rod 2312 is received in the sleeve rod 2311. When the opposite sides of the moving unit 22 and the connecting unit 21 in contact are separated, the moving rod 2312 moves outwards along the axial direction (i.e., the length direction of the armrest) from the sleeve rod 2311.

[0057] In the embodiments of the present application, as Figure 6As shown, the sleeve rod 2311 may include a first rod portion 23111, a second rod portion 23112, and a third rod portion 23113 that are connected in sequence. The first rod portion 23111 is fixedly disposed inside the connection unit 21. The sleeve rod 2311 is divided into three parts, so that the sleeve rod 2311 is fixedly connected to the moving unit 21, making the structure of the stretching unit 23 more stable. When the seat armrest 2 is in the horizontal position, the first rod portion 23111 is horizontally disposed inside the connection unit 21, that is, the axial direction of the first rod portion 23111 is parallel to the length direction of the seat armrest 2.

[0058] Since the moving unit 22 has a relatively large volume, when the seat armrest 2 is in the horizontal position, a relatively large longitudinal space is required to arrange the moving unit 22. The first rod portion 23111 is fixedly disposed inside the connection unit 21, while the third rod portion 23113 is disposed at the bottom of the connection unit 21 and extends along the bottom of the connection unit 21 in the direction of the moving unit 22. Thus, when the seat armrest 2 is in the horizontal position, there is a longitudinal height difference between the third rod portion 23113 and the first rod portion 23111, and the second rod portion 23112 is longitudinally or obliquely disposed. The second rod portion 23112 is longitudinally disposed, that is, the axial direction of the second rod portion 23112 is parallel to the thickness direction of the seat armrest 2.

[0059] As Figure 5 and 6 shown, one end of the second rod portion 23112 may be connected to the first rod portion 23111 inside the connection unit 21, and the other end of the second rod portion 23112 may be connected to the third rod portion 23113 through a hole (not shown in the figure) on the bottom of the connection unit 21. The hole on the bottom of the connection unit 21 has the same diameter as the diameter of the third rod portion 2311-3.

[0060] The moving rod 2312 may be connected to the third rod portion 23113. The inside of the third rod portion 23113 is hollow, so that the moving rod 2312 can move along the axial direction of the third rod portion 23113 inside the third rod portion 23113. The diameter of the moving rod 2312 is smaller than the inner diameter of the third rod portion 2311-3. The first rod portion 23111 and the second rod portion 23112 are also provided as hollow structures, and the sleeve rod 2311 is integrally formed. In other embodiments of the present application, the first rod portion 2311-1 and the second rod portion 2311-2 may also be provided as solid structures.

[0061] To prevent the moving unit 22 from colliding with the front seat in the vehicle or other devices, as shown in Figure 6, a limiting device 2313 can be provided inside the telescopic rod 231. The limiting device 2313 is used to limit the sliding position of the moving rod 2312. Specifically, a first limiting block 23131 is provided at one end of the moving rod 2312 connected to the third rod portion 23113. Correspondingly, a second limiting block 23132 is provided inside the third rod portion 23113. When the moving rod 2312 moves to a position where the first limiting block 23131 and the second limiting block 23132 come into contact, the moving rod 2312 reaches the maximum moving position, thereby preventing the moving rod 2312 from moving further outwards.

[0062] In other embodiments of the present application, such as Figure 10 shown, in order to fix the moving unit 22 at any position within the moving range and prevent the moving unit 22 from moving randomly, the stretching unit 23 may further include a moving switch 234. The moving switch 234 can be provided below the connecting rod 232 or on the side facing the connecting unit 21, and the moving switch 234 is provided at the middle position of the connecting rod 232. The moving switch 234 can be used to lock the position of the moving rod 2312, that is, when the moving switch 234 is pressed, the moving rod 2312 can move freely in the sleeve rod 2311; when the moving switch 234 pops up, the position of the moving rod 2312 in the sleeve rod 2311 is fixed and cannot move further.

[0063] Specifically, the moving switch 234 can be connected to a spring 235, and the spring 235 is connected to a lifting device 236 provided inside the moving rod 2312 and the connecting rod 232. The lifting device 236 can be made of a metal wire that is not easily deformed or broken, such as iron wire. When the stretching unit 23 includes two moving rods 2312, the lifting device 236 penetrates from one end of the moving rod 2312 connected to the sleeve rod 2311, passes through the moving rod 2312, the connecting rod 232, and the other moving rod 2312, and then penetrates from the end of the other moving rod 2312 connected to the sleeve rod 2311. Clasps 237 are provided at both ends of the lifting device 236 respectively.

[0064] When the moving switch 234 pops up, both ends of the clasp 237 abut against the inner wall of the sleeve rod 2311, thereby fixing the position of the moving rod 2312. When the moving switch 234 is pressed, the spring 235 is compressed, thereby driving both ends of the lifting device 236 to move forward (i.e., the direction in which the moving rod moves outwards). The lifting device 236 applies a pulling force to the clasp 237, causing both ends of the clasp 237 to contract inwards until they are separated from the inner wall of the sleeve rod 2311, so that the moving rod 2312 can move freely in the sleeve rod 2311.

[0065] In the embodiments of the present application, such as Figure 1 、 8As shown in FIGS. 8 and 9, the opposite side surface of the moving unit 22 in contact with the connecting unit 21 may be an arc surface. The arc surface of the moving unit 22 protrudes toward the connecting unit 21, and the arc surface of the connecting unit 21 is recessed toward the inside of the connecting unit 21. This opposite side surface has a concentric circle structure, so that when the moving rod 2312 is received in the sleeve rod 2311, the moving unit 22 can rotate along the arc surface of the connecting unit 21.

[0066] As Figure 12 and 13 shown, the seat armrest 2 can rotate, so as to have at least two states of longitudinal storage or horizontal opening. In the embodiment of the present application, as Figure 13 and 6 shown, an armrest box 24 may be provided on the backrest side of the seat, and one end of the connecting unit 21 away from the moving unit 22 may be connected to the armrest box 24 in the seat. A rotating shaft 25 is provided inside the connecting unit 21, and both ends of the rotating shaft 25 are connected to the armrest box 24. The connecting unit 21 can rotate through the rotating shaft 25, driving the moving unit 22 to move away from or close to the backrest 31 of the seat.

[0067] As Figure 6 shown, the rotating shaft 25 is horizontally arranged inside the connecting unit 21, and both ends of the rotating shaft 25 extend to the outside of the connecting unit 21. A limiting shaft 26 parallel to the rotating shaft 25 may also be provided inside the connecting unit 21, and both ends of the limiting shaft 26 extend to the outside of the connecting unit 21.

[0068] A through hole (not shown in the figure) may be provided on the first rod portion 2311-1, and the rotating shaft 25 passes through the through hole and is connected to the first rod portion 2311-1. A notch (not shown in the figure) may be provided at the top of the first rod portion 2311-1, and the limiting shaft 26 passes through the notch and is connected to the first rod portion 2311-1. In the embodiment of the present application, the side of the first rod portion 2311-1 connected to the rotating shaft 25 and the limiting shaft 26 may be set to be flat, and the side connected to the first rod portion 2311-2 is set to be cylindrical.

[0069] In the embodiment of the present application, as Figure 12 and 13 shown, the display device 1 is arranged on the side surface of the moving unit 22 facing the armrest box 24. When the seat armrest 2 is in the storage state, the display unit 1 is received in the seat armrest 2. A mask (not shown in the figure) may also be provided above the display device 1, and the user can operate on the display device 1 after opening the mask. When the user only uses the armrest function, the mask can be closed. The mask can be opened to one side or opened by pushing and pulling.

[0070] In some embodiments of the present application, the display device can form a projection in the air. The surface of the display device can be rectangular. The long side of the display device is arranged in the width direction of the seat armrest, and the short side of the display device is arranged in the length direction of the seat armrest, thus conforming to the imaging principle and the user's operating habits, making it easier for the user to read the display content and operate the display device in a non-voice situation. Alternatively, the display device can include a display screen disposed on the surface of the mobile unit, and the display screen is used to display the content selected by the user. In other embodiments of the present application, a decorative panel can also be provided at the bottom of the armrest, so that when the armrest is in the retracted state, it does not affect the user's leaning.

[0071] Embodiments of the present application also provide a seat, as Figure 12 and 13 shown, the seat includes a backrest 31, a seat cushion 32 and the above-mentioned seat armrest 2. One end of the seat armrest 2 away from the mobile unit 22 is connected to an armrest box 24. The armrest box 24 is longitudinally arranged on one side of the backrest, and the seat armrest 2 can be retracted into the armrest box 24.

[0072] In some embodiments of the present application, as Figure 11 shown, a limiting notch 2411 is provided at the contact position between the armrest box 24 and the limiting shaft 26. The limiting notch 2411 is used to limit the rotation range of the seat armrest 2 relative to the armrest box 24. Specifically, a seat frame 241 can be provided in the armrest box 24. The armrest box 24 is connected to the parts of the rotating shaft 25 and the limiting shaft 26 extending outside the connecting unit 21 through the seat frame 241. The rotating shaft 25 can rotate relative to the seat frame 241. The limiting notch 2411 can be provided on the seat frame 241. When the seat armrest 2 rotates to the horizontal position, the limiting shaft 26 rotates to the inside of the limiting notch 2411, thereby restricting the connecting unit 21 from continuing to rotate.

[0073] The seat armrest provided by the embodiments of the present application has an armrest including a connecting unit, a mobile unit and a stretching unit. The mobile unit can change its distance from the connecting unit through the telescopic rod in the stretching unit; it can also rotate relative to the connecting unit through the rotating part in the stretching unit. A display device is provided on the mobile unit, so that the orientation and viewing angle of the display device relative to the user can be adjusted, meeting the needs of the user group for the usage and interaction methods of the display device in different application scenarios.

[0074] The above are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A seat armrest with a display device, characterized in that, the seat armrest (2) includes a connecting unit (21), a moving unit (22) and a stretching unit (23), wherein, a display device (1) is arranged on the moving unit (22), and the moving unit (22) is connected to the connecting unit (21) by the stretching unit (23). The opposite side surfaces of the moving unit (22) in contact with the connecting unit (21) are arc surfaces, and the opposite side surfaces are of the same concentric structure. The arc surface of the moving unit (22) protrudes towards the connecting unit (21) side, and the arc surface of the connecting unit (21) is recessed towards the inside of the connecting unit (21); the stretching unit (23) includes at least one telescopic rod (231) and a connecting rod (232) connected to the telescopic rod (231). The connecting rod (232) is located at the bottom of the moving unit (22), and a rotating part (233) is further arranged on the connecting rod (232), and the rotating part (233) is connected to the moving unit (22); wherein, the telescopic rod (231) is configured to change the distance between the moving unit (22) and the connecting unit (21) when telescoping; the moving unit (22) rotates relative to the connecting unit (21) through the rotating part (233); the telescopic rod (231) includes a sleeve rod (2311) and a moving rod (2312) received in the sleeve rod (2311), and the moving rod (2312) is connected to the connecting rod (232); the sleeve rod (2311) includes a first rod part (23111), a second rod part (23112) and a third rod part (23113) connected in sequence. The first rod part (23111) is fixedly arranged inside the connecting unit (21); one end of the second rod part (23112) is connected to the first rod part (23111) inside the connecting unit (21), and the other end of the second rod part (23112) is connected to the third rod part (23113) through a hole in the bottom of the connecting unit (21); the third rod part (23113) is arranged at the bottom of the connecting unit (21), and the third rod part (23113) extends along the bottom of the connecting unit (21) towards the moving unit (22); the moving rod (2312) is connected to the third rod part (23113), and the moving rod (2312) can move axially inside the third rod part (23113) along the third rod part (23113).

2. The seat armrest according to claim 1, characterized in that, the rotating part (233) includes a first cylinder (2331) connected to the connecting rod (232). A second cylinder (2332) is arranged inside the first cylinder (2331), and the second cylinder (2332) is connected to the moving unit (22); The moving unit (22) can rotate around the second cylinder (2332), or the moving unit (22) drives the second cylinder (2332) to rotate inside the first cylinder (2331).

3. The seat armrest according to claim 1, wherein, a rotating shaft (25) is arranged inside the connecting unit (21), and the connecting unit (21) can rotate through the rotating shaft (25) to drive the moving unit (22) to move away from or close to the backrest (31) of the seat; The display device (1) is arranged on a side of the moving unit (22) away from the connecting rod (232).

4. The seat armrest according to claim 3, wherein, The rotating shaft (25) is horizontally arranged inside the connecting unit (21), and both ends of the rotating shaft (25) extend to the outside of the connecting unit (21); A through hole is arranged on the first rod portion (23111), and the rotating shaft (25) passes through the through hole and is connected to the first rod portion (23111).

5. The seat armrest according to claim 3, wherein, A limiting shaft (26) parallel to the rotating shaft (25) is further arranged inside the connecting unit (21), and both ends of the limiting shaft (26) extend to the outside of the connecting unit (21); A notch is arranged at an end of the first rod portion (23111) away from the second rod portion (23112), and the limiting shaft (26) passes through the notch and is connected to the first rod portion (23111).

6. The seat armrest according to claim 1, wherein, A limiting device (2313) is arranged inside the telescopic rod (231), and the limiting device (2313) is used to limit the sliding position of the moving rod (2312).

7. A seat, wherein, comprising a backrest (31), a seat cushion (32) and the seat armrest (2) according to any one of claims 1-6; One end of the seat armrest (2) away from the moving unit (22) is connected to an armrest box (24), the armrest box (24) is longitudinally arranged on one side of the backrest, and the seat armrest (2) can be received in the armrest box (24).

8. The seat according to claim 7, wherein, A limiting shaft (26) is arranged inside the connecting unit (21), both ends of the limiting shaft (26) extend to the outside of the connecting unit (21), and a limiting notch (2411) is arranged at a contact position between the armrest box (24) and the limiting shaft (26), and the limiting notch (2411) is used to limit the rotation range of the seat armrest (2) relative to the armrest box (24).

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