Seat backrest armrest and vehicle

Abstract

The utility model relates to the technical field of vehicles, and particularly discloses a seat backrest armrest and a vehicle, and the seat backrest armrest comprises a backrest armrest framework, a locking angle adjusting part and an unlocking part. Due to the fact that the other side of the backrest armrest framework is connected with the seat framework through the locking angle adjusting part, the unfolding angle of the backrest armrest framework can be adjusted according to the actual requirements of a user so as to meet the requirements of different crowds. When the backrest armrest framework is unfolded to a designated position, the locking angle adjusting part can lock the backrest armrest framework, so that the situation that a user turns over and spatters articles such as a water cup on the backrest armrest framework due to misoperation can be effectively prevented; the unlocking part and the locking angle adjusting part are connected, and the unlocking part is used for unlocking the position of the backrest armrest framework, which is locked by the locking angle adjusting part, so that the backrest armrest framework is convenient to fold. According to the scheme, the problems that in the prior art, a seat backrest armrest cannot be locked, so that the height of the backrest armrest cannot be adjusted, and articles such as a water cup are easily turned over due to misoperation are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a seat backrest armrest and a vehicle. Background Art

[0002] Currently, a backrest armrest is usually arranged inside the seat backrest of a vehicle, and the purpose of rest and separating objects can be achieved by folding down the backrest armrest. However, the use area of the backrest armrest in the prior art is small, the use height is fixed and cannot be locked, making it difficult to be suitable for different user groups; moreover, since there is no locking gear for the backrest armrest, the use height of the backrest armrest is fixed and cannot be adjusted to other heights for use, unable to meet the comfort during use; in addition, since the backrest armrest cannot be locked, items such as water cups placed on the backrest armrest are extremely easy to be overturned and spilled due to misoperation. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a seat backrest armrest and a vehicle, so as to solve the problem that the backrest armrest in the prior art cannot be locked, resulting in the inability to adjust the height of the backrest armrest and being easily overturned and spilled items such as water cups due to misoperation.

[0004] On the one hand, the utility model provides a seat backrest armrest, which includes: a backrest armrest skeleton, one side of the backrest armrest skeleton is rotatably connected to the seat skeleton; a locking angle adjustment part, the other side of the backrest armrest skeleton is connected to the seat skeleton through the locking angle adjustment part, the locking angle adjustment part can adjust the unfolding angle of the backrest armrest skeleton, and can lock the position of the backrest armrest skeleton; an unlocking part, which is arranged on the backrest armrest skeleton or the seat skeleton, the unlocking part is connected to the locking angle adjustment part, and can release the locking of the locking angle adjustment part on the position of the backrest armrest skeleton.

[0005] As a preferred technical solution of the seat backrest armrest, the locking angle adjustment part includes a rotating part, a locking angle adjustment structure and an elastic part, the rotating part passes through the seat skeleton and is rotatably connected to the seat skeleton, both the locking angle adjustment structure and the other side of the backrest armrest skeleton are sleeved on the rotating part, the elastic part is connected to the backrest armrest skeleton to make the unfolded backrest armrest skeleton return to its position, the unlocking part is connected to the rotating part and can drive the rotating part to rotate, so that the locking angle adjustment structure can adjust the unfolding angle of the backrest armrest skeleton and can lock the position of the backrest armrest skeleton.

[0006] As a preferred technical solution of the seat backrest armrest, the locking angle adjustment structure includes an angle adjustment disc and a locking disc which are connected to each other. The angle adjustment disc is sleeved on the rotating member. The angle adjustment disc has first engaging teeth, and the locking disc has second engaging teeth. The unlocking portion can make the first engaging teeth engage with the second engaging teeth through the rotating member to lock the position of the backrest armrest skeleton; or, the unlocking portion can make the first engaging teeth and the second engaging teeth avoid each other through the rotating member to adjust the unfolding angle of the backrest armrest skeleton.

[0007] As a preferred technical solution of the seat backrest armrest, the angle adjustment disc includes an angle adjustment shell, a rotating cam and a sliding angle adjustment plate arranged in the angle adjustment shell. The rotating cam is sleeved with the rotating member. The sliding angle adjustment plate has first engaging teeth, and the rotating cam can drive the first engaging teeth on the sliding angle adjustment plate to engage with or avoid the second engaging teeth.

[0008] As a preferred technical solution of the seat backrest armrest, the elastic member is a coil spring.

[0009] As a preferred technical solution of the seat backrest armrest, the unlocking portion includes a first unlocking structure and a second unlocking structure. The first unlocking structure is arranged on the seat skeleton and sleeved on the rotating member. The first unlocking structure can drive the rotating member to rotate. The second unlocking structure is arranged on the backrest armrest skeleton and connected to the first unlocking structure. The second unlocking structure can drive the first unlocking structure to rotate.

[0010] As a preferred technical solution of the seat backrest armrest, the first unlocking structure includes an unlocking plate and an unlocking pull belt. One end of the unlocking plate is connected to the rotating member, and the other end of the unlocking plate is connected to the unlocking pull belt. The unlocking pull belt is arranged on the seat skeleton and located at the bottom of the backrest armrest skeleton, and the unlocking pull belt can be operated by the staff.

[0011] As a preferred technical solution of the seat backrest armrest, the unlocking plate includes a plate body and a connecting sleeve arranged on the plate body. One end of the plate body is connected to the rotating member, and the other end of the plate body is connected to the unlocking pull belt. The second unlocking structure is connected to the connecting sleeve.

[0012] As a preferred technical solution of the seat backrest armrest, the second unlocking structure includes a pull wire and an unlocking buckle. One end of the pull wire is connected to the unlocking plate, and the other end of the pull wire is connected to the unlocking buckle. The unlocking buckle is arranged at the top of the backrest armrest skeleton and can be operated by the staff.

[0013] On the other hand, the present utility model provides a vehicle, which includes a seat skeleton and the seat backrest armrest in any of the above solutions. The seat backrest armrest is installed on the seat skeleton.

[0014] The beneficial effects of the present utility model are:

[0015] The present utility model provides a seat back armrest, which includes a back armrest skeleton, a locking angle adjustment part and an unlocking part. By using the seat back armrest provided by the present utility model, since the other side of the back armrest skeleton is connected to the seat skeleton through the locking angle adjustment part, the locking angle adjustment part can be used to adjust the unfolding angle of the back armrest skeleton according to the actual needs of the user, and at the same time, the height of the back armrest skeleton when it tilts up is also adjusted to meet the needs of different people. At the same time, when the back armrest skeleton is unfolded to a specified position, the locking angle adjustment part can also lock the back armrest skeleton. Such a setting can effectively prevent the user from overturning or spilling items such as water cups on the back armrest skeleton due to misoperation. And by connecting the unlocking part and the locking angle adjustment part, the unlocking part can be used to release the locking of the position of the back armrest skeleton by the locking angle adjustment part, which is convenient for folding up the back armrest skeleton. By using the seat back armrest provided by the present utility model, the problem in the prior art that the seat back armrest cannot be locked, resulting in the inability to adjust the height of the back armrest and being prone to overturning items such as water cups due to misoperation is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic structural diagram of the seat back armrest and the seat skeleton after installation in an embodiment of the present utility model;

[0017] Figure 2 FIG. is a schematic diagram of a partial structure of the seat back armrest and the seat skeleton in an embodiment of the present utility model;

[0018] Figure 3 FIG. is an enlarged partial view of the seat back armrest and the seat skeleton in an embodiment of the present utility model;

[0019] Figure 4 FIG. is an enlarged partial view of the seat back armrest and the seat skeleton from another angle in an embodiment of the present utility model;

[0020] Figure 5 FIG. is a schematic structural diagram of an angle adjustment disc in an embodiment of the present utility model;

[0021] Figure 6 FIG. is a schematic structural diagram of a locking disc in an embodiment of the present utility model;

[0022] Figure 7 FIG. is a schematic structural diagram of the seat back armrest at different angles when it is unfolded or folded up in an embodiment of the present utility model.

[0023] In the figure:

[0024] 1. Back armrest skeleton;

[0025] 2. Locking angle adjustment part; 21. Rotating part; 22. Locking angle adjustment structure; 221. Angle adjustment disc; 2211. First engaging tooth; 2212. Angle adjustment housing; 2213. Rotating cam; 2214. Sliding angle adjustment plate; 222. Locking disc; 2221. Second engaging tooth; 23. Elastic part;

[0026] 3. Unlocking part; 31. First unlocking structure; 311. Unlocking plate; 3111. Plate body; 3112. Connecting sleeve; 312. Unlocking pull belt; 32. Second unlocking structure; 321. Pull wire; 322. Unlocking handle;

[0027] 4. Seat frame. Detailed implementation manners

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0032] As Figures 1 to 7 shown, this embodiment provides a seat back armrest, which includes a back armrest skeleton 1, a locking angle adjustment part 2, and an unlocking part 3. Among them, one side of the back armrest skeleton 1 is rotatably connected to the seat skeleton 4, and the other side of the back armrest skeleton 1 is connected to the seat skeleton 4 through the locking angle adjustment part 2. The locking angle adjustment part 2 can adjust the unfolding angle of the back armrest skeleton 1 and can lock the position of the back armrest skeleton 1; moreover, the unlocking part 3 is connected to the locking angle adjustment part 2 and can release the locking of the position of the back armrest skeleton 1 by the locking angle adjustment part 2.

[0033] By using the seat back armrest provided by the present utility model, since the other side of the back armrest skeleton 1 is connected to the seat skeleton 4 through the locking angle adjustment part 2, the locking angle adjustment part 2 can be used to adjust the unfolding angle of the back armrest skeleton 1 according to the actual needs of the user, and at the same time, the height of the back armrest skeleton 1 when it tilts up is also adjusted to meet the needs of different people; at the same time, when the back armrest skeleton 1 is unfolded to a specified position, the locking angle adjustment part 2 can also lock the back armrest skeleton 1. Such a setting can effectively prevent the user from overturning or spilling items such as water cups on the back armrest skeleton 1 due to misoperation; and the unlocking part 3 is connected to the locking angle adjustment part 2, so that the unlocking part 3 can be used to release the locking of the position of the back armrest skeleton 1 by the locking angle adjustment part 2, which is convenient for folding up the back armrest skeleton 1. By using the seat back armrest provided by the present utility model, the problem in the prior art that the seat back armrest cannot be locked, resulting in the inability to adjust the height of the back armrest and being prone to overturning items such as water cups due to misoperation, is effectively solved.

[0034] In some embodiments, such as Figure 1 and Figure 3As shown, the locking angle adjustment part 2 includes a rotating part 21, a locking angle adjustment structure 22, and an elastic part 23. Among them, the rotating part 21 passes through the seat frame 4 and is rotatably connected to the seat frame 4. Both the locking angle adjustment structure 22 and the other side of the backrest armrest frame 1 are sleeved on the rotating part 21. The unlocking part 3 is connected to the rotating part 21. In this way, the unlocking part 3 can drive the rotating part 21 to rotate, and at the same time drive the locking angle adjustment structure 22 and the backrest armrest frame 1 to rotate, so that the locking angle adjustment structure 22 can adjust the unfolding angle of the backrest armrest frame 1. At the same time, when the required unfolding angle is reached, the unlocking part 3 stops driving the rotating part 21 to rotate, so that the locking angle adjustment structure 22 can lock the position of the backrest armrest frame 1, thus solving the problem that the seat backrest armrest in the prior art cannot be locked; at the same time, the elastic part 23 is connected to the backrest armrest frame 1. Such a setting can make the unfolded backrest armrest frame 1 return to its original position.

[0035] Optionally, the rotating part 21 includes, but is not limited to, a rotating shaft.

[0036] Specifically, as Figure 4 , Figure 5 and Figure 6 shown, the locking angle adjustment structure 22 includes an angle adjustment disc 221 and a locking disc 222 that are connected to each other. The angle adjustment disc 221 is sleeved on the rotating part 21. The angle adjustment disc 221 has a first meshing tooth 2211, and the locking disc 222 has a second meshing tooth 2221. Such a setting enables the unlocking part 3 to drive the rotating part 21 to rotate. The rotating part 21 drives the angle adjustment disc 221 to rotate. When the angle adjustment disc 221 rotates a certain angle, at this time, the first meshing tooth 2211 on the angle adjustment disc 221 can mesh with the second meshing tooth 2221, thereby locking the position of the backrest armrest frame 1; or, when the angle adjustment disc 221 rotates a certain angle again, the first meshing tooth 2211 and the second meshing tooth 2221 avoid each other, so that the unfolding angle of the backrest armrest frame 1 can be adjusted.

[0037] Furthermore, as Figure 5 shown, the angle adjustment disc 221 includes an angle adjustment shell 2212, a rotating cam 2213, and a sliding angle adjustment plate 2214 arranged inside the angle adjustment shell 2212. Among them, the rotating cam 2213 is sleeved on the rotating part 21. In this way, the rotating part 21 can drive the rotating cam 2213 to rotate. Since the rotating cam 2213 can abut against the sliding angle adjustment plate 2214, and the sliding angle adjustment plate 2214 has a first meshing tooth 2211, when the rotating cam 2213 rotates, it can drive the first meshing tooth 2211 on the sliding angle adjustment plate 2214 to mesh with or avoid the second meshing tooth 2221, so as to achieve the purpose of locking the backrest armrest frame 1 or adjusting the unfolding angle of the backrest armrest frame 1.

[0038] In this solution, the elastic part 23 includes, but is not limited to, a coil spring or a return spring, etc.

[0039] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 shown, the unlocking portion 3 includes a first unlocking structure 31 and a second unlocking structure 32. Among them, the first unlocking structure 31 is arranged on the seat frame 4 and sleeved on the rotating member 21. Through the first unlocking structure 31, the rotating member 21 can be driven to rotate. At the same time, the second unlocking structure 32 is arranged on the backrest armrest frame 1 and connected to the first unlocking structure 31, so that the second unlocking structure 32 can drive the first unlocking structure 31 to rotate. With such a setting, the first unlocking structure 31 and the second unlocking structure 32 can independently drive the rotating member 21 to rotate to unlock the backrest armrest frame 1, and this way can more conveniently adjust the unfolding angle of the backrest armrest frame 1.

[0040] Specifically, the first unlocking structure 31 includes an unlocking plate 311 and an unlocking pull belt 312. Among them, one end of the unlocking plate 311 is connected to the rotating member 21, the other end of the unlocking plate 311 is connected to the unlocking pull belt 312, and the unlocking pull belt 312 is arranged on the seat frame 4 and located at the bottom of the backrest armrest frame 1, so that the unlocking pull belt 312 is convenient for the staff to pull. Then the unlocking pull belt 312 drives the unlocking plate 311 to rotate, and further the unlocking plate 311 drives the rotating member 21 to rotate.

[0041] As Figure 3 shown, the unlocking plate 311 includes a plate body 3111 and a connecting sleeve 3112 arranged on the plate body 3111. Among them, one end of the plate body 3111 is connected to the rotating member 21, the other end of the plate body 3111 is connected to the unlocking pull belt 312, and the second unlocking structure 32 is connected to the connecting sleeve 3112, so as to achieve the purpose of the second unlocking structure 32 pulling the plate body 3111 to rotate. Among them, the connection method between the connecting sleeve 3112 and the plate body 3111 can be welding.

[0042] Specifically, as Figure 1 shown, the second unlocking structure 32 includes a wire 321 and an unlocking buckle 322. One end of the wire 321 is connected to the unlocking plate 311, and the other end of the wire 321 is connected to the unlocking buckle 322. The unlocking buckle 322 is arranged on the top of the backrest armrest frame 1, which is convenient for the staff to operate.

[0043] Optionally, the connecting sleeve 3112 includes a sleeve and a hook connected to each other. One end of the wire 321 is connected to the sleeve, the plate body 3111 has a through hole, the hook passes through the through hole, and the sleeve is fixed on the plate body 3111.

[0044] Optionally, the seat backrest armrest further includes a storage board and a cup holder which are spaced apart on the backrest armrest frame.

[0045] AsFigure 7 As shown, it can be seen that when the backrest armrest frame 1 is unfolded, that is, when the armrest is in use, by adjusting different angles, the height of the backrest armrest frame 1 lifted is also adjusted (i.e., Figure 7 10° shown in the figure); or when the backrest armrest frame 1 is folded up, that is, when the backrest is in use, the angle of the backrest armrest frame 1 can also be adjusted, so as to be suitable for different people.

[0046] This embodiment also provides a vehicle, including a seat frame 4 and the seat backrest armrest in the above solution, and the seat backrest armrest is installed on the seat frame 4. By using the vehicle provided by the present utility model, since the other side of the backrest armrest frame 1 is connected to the seat frame 4 through the locking angle adjustment part 2, the locking angle adjustment part 2 can be used to adjust the unfolding angle of the backrest armrest frame 1 according to the actual needs of the user, and at the same time, the height of the backrest armrest frame 1 lifted is also adjusted to meet the needs of different people; at the same time, when the backrest armrest frame 1 is unfolded to a specified position, the locking angle adjustment part 2 can also lock the backrest armrest frame 1. With such a setting, it can effectively prevent the user from overturning or spilling items such as water cups on the backrest armrest frame 1 due to misoperation; and the unlocking part 3 and the locking angle adjustment part 2 are connected, so that the locking of the position of the backrest armrest frame 1 by the locking angle adjustment part 2 can be released by using the unlocking part 3, which is convenient for folding up the backrest armrest frame 1. By using the vehicle provided by the present utility model, the problem in the prior art that the seat backrest armrest cannot be locked, resulting in the inability to adjust the height of the backrest armrest and being prone to overturning water cups and other items due to misoperation is effectively solved.

[0047] The advantages of the present utility model are as follows: Different users can adjust the seat backrest armrest to a suitable use height, improving the comfort width of the seat backrest armrest; at the same time, the seat backrest armrest is designed with two different unlocking methods (i.e., the first unlocking structure 31 and the second unlocking structure 32), greatly improving the convenience of using the seat backrest armrest. Even during driving, the armrest can be easily opened and adjusted. And, setting the locking angle adjustment part 2 can prevent the situation that the water cup is poured or overturned due to the user's misoperation.

[0048] Obviously, the above embodiments of the present utility model are only examples for clearly explaining the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A seat backrest armrest, characterized in that, Comprising: A backrest armrest skeleton (1), one side of the backrest armrest skeleton (1) is rotatably connected to a seat skeleton (4); A locking angle adjustment part (2), the other side of the backrest armrest skeleton (1) is connected to the seat skeleton (4) through the locking angle adjustment part (2), the locking angle adjustment part (2) can adjust the unfolding angle of the backrest armrest skeleton (1), and can lock the position of the backrest armrest skeleton (1); An unlocking part (3) is arranged on the backrest armrest skeleton (1) or the seat skeleton (4), the unlocking part (3) is connected to the locking angle adjustment part (2), and can release the locking of the position of the backrest armrest skeleton (1) by the locking angle adjustment part (2).

2. The seat backrest armrest according to claim 1, characterized in that, The locking angle adjustment part (2) includes a rotating part (21), a locking angle adjustment structure (22) and an elastic part (23), the rotating part (21) passes through the seat skeleton (4) and is rotatably connected to the seat skeleton (4), the locking angle adjustment structure (22) and the other side of the backrest armrest skeleton (1) are both sleeved on the rotating part (21), the elastic part (23) is connected to the backrest armrest skeleton (1) to make the unfolded backrest armrest skeleton (1) return to its original position, the unlocking part (3) is connected to the rotating part (21) and can drive the rotating part (21) to rotate, so that the locking angle adjustment structure (22) can adjust the unfolding angle of the backrest armrest skeleton (1) and can lock the position of the backrest armrest skeleton (1).

3. The seat backrest armrest according to claim 2, characterized in that, The locking angle adjustment structure (22) includes an angle adjustment disc (221) and a locking disc (222) connected to each other, the angle adjustment disc (221) is sleeved on the rotating part (21), the angle adjustment disc (221) has a first engaging tooth (2211), the locking disc (222) has a second engaging tooth (2221), the unlocking part (3) can make the first engaging tooth (2211) engage with the second engaging tooth (2221) through the rotating part (21) to lock the position of the backrest armrest skeleton (1); or, the unlocking part (3) can make the first engaging tooth (2211) avoid the second engaging tooth (2221) through the rotating part (21) to adjust the unfolding angle of the backrest armrest skeleton (1).

4. The seat backrest armrest according to claim 3, characterized in that, The angle adjustment disc (221) includes an angle adjustment shell (2212) and a rotating cam (2213) and a sliding angle adjustment plate (2214) arranged in the angle adjustment shell (2212), the rotating cam (2213) is sleeved on the rotating part (21), the sliding angle adjustment plate (2214) has the first engaging tooth (2211), and the rotating cam (2213) can drive the first engaging tooth (2211) on the sliding angle adjustment plate (2214) to engage with or avoid the second engaging tooth (2221).

5. The seat backrest armrest according to claim 2, characterized in that, The elastic part (23) is a coil spring.

6. The seat backrest armrest according to claim 2, characterized in that, The unlocking part (3) includes a first unlocking structure (31) and a second unlocking structure (32). The first unlocking structure (31) is arranged on the seat frame (4) and sleeved on the rotating member (21). The first unlocking structure (31) can drive the rotating member (21) to rotate. The second unlocking structure (32) is arranged on the backrest armrest frame (1) and connected to the first unlocking structure (31). The second unlocking structure (32) can drive the first unlocking structure (31) to rotate.

7. The seat backrest armrest according to claim 6, characterized in that, The first unlocking structure (31) includes an unlocking plate (311) and an unlocking pull strap (312). One end of the unlocking plate (311) is connected to the rotating member (21), and the other end of the unlocking plate (311) is connected to the unlocking pull strap (312). The unlocking pull strap (312) is arranged on the seat frame (4) and located at the bottom of the backrest armrest frame (1). The unlocking pull strap (312) can be operated by a staff member.

8. The seat backrest armrest according to claim 7, characterized in that, The unlocking plate (311) includes a plate body (3111) and a connecting sleeve (3112) arranged on the plate body (3111). One end of the plate body (3111) is connected to the rotating member (21), and the other end of the plate body (3111) is connected to the unlocking pull strap (312). The second unlocking structure (32) is connected to the connecting sleeve (3112).

9. The seat back armrest according to claim 7, characterized in that, The second unlocking structure (32) includes a wire rope (321) and an unlocking handle (322). One end of the wire rope (321) is connected to the unlocking plate (311), and the other end of the wire rope (321) is connected to the unlocking handle (322). The unlocking handle (322) is arranged at the top of the backrest armrest frame (1) and can be operated by a staff member.

10. A vehicle, characterized in that, It includes a seat frame (4) and the seat backrest armrest according to any one of claims 1-9. The seat backrest armrest is installed on the seat frame (4).

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