Automobile backseat armrest

Abstract

The utility model relates to an automobile backseat armrest, which relates to the technical field of automobile seats and comprises an armrest seat and an armrest body, a rotating shaft is rotatably arranged at the top end of the armrest seat, the armrest body is fixedly arranged on the rotating shaft, a locking mechanism is arranged on the armrest body, and a control component for controlling the locking mechanism to open and close is arranged on the armrest body. In the locking state, the armrest body is used as a seat backrest, when the armrest needs to be used, the control assembly starts and controls the locking mechanism to be opened, the armrest body is unlocked and rotates forwards around the axis of the rotating shaft, after the armrest is used, the armrest body is pushed to rotate backwards around the axis of the rotating shaft to return to the initial position, and the locking mechanism locks the armrest body. A passenger does not need to pull or pull the armrest body at a specific angle, so that the use convenience and stability of the automobile backseat armrest are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to an automobile rear seat armrest. Background Art

[0002] The rear seats of a car usually seat three people. In order to provide elbow support for the rear passengers, improve the stability of the rear passengers, and provide storage space, an armrest is set between the two rear seats. Most of the rear seat armrests are folding armrests. When the armrest is not in use, push the armrest between the two seat backs to provide back support for the middle passenger. When the armrest is needed, pull the armrest downward from between the two seats to rotate and keep it horizontal. When not in use, push the armrest back to its original position.

[0003] Currently, there are roughly two ways to position the rear seat armrests of cars. One is to fix the armrest position by squeezing the skin on both sides of the armrest with the skin of the seat back. The other is to use a locking mechanism to align the locking pin or lock hook inside the armrest with the hole position of the external mounting bracket to control the fixation of the armrest. Both methods require the structure outside the armrest for positioning, and both require the passenger to forcefully pry the armrest or pull the rope connected to the lock hook at a specific angle when releasing it, which reduces the convenience of using the rear seat armrest of the car. Utility Model Content

[0004] In order to improve the convenience of using a rear seat armrest of an automobile, the utility model provides a rear seat armrest of an automobile.

[0005] The present application provides a rear seat armrest for a car, which adopts the following technical solution:

[0006] A rear seat armrest for a car comprises an armrest seat and an armrest body, wherein the armrest seat is located between two rear seats of the car, a rotating shaft is rotatably arranged on the top of the armrest seat, the armrest body is fixed on the rotating shaft, a locking mechanism is arranged on the armrest body, and a control component for controlling the opening and closing of the locking mechanism is arranged on the armrest body.

[0007] By adopting the above technical solution, when in the locked state, the armrest body is used as a seat backrest. When the armrest needs to be used, the control component starts to control the locking mechanism to open, the armrest body is unlocked and rotates forward around the axis of the rotation shaft. After the armrest is used, the armrest body is pushed to rotate backward around the axis of the rotation shaft back to the initial position, and the locking mechanism locks the armrest body. There is no need for the passenger to bend or pull the armrest body at a specific angle, thereby improving the convenience and stability of using the rear seat armrest of the car.

[0008] Optionally, the locking mechanism includes:

[0009] A first ratchet wheel, wherein the first ratchet wheel is coaxially fixed on the rotating shaft;

[0010] a first pawl, wherein the first pawl is disposed in the armrest body and meshes with the first ratchet wheel, and when the first pawl meshes with the first ratchet wheel, the armrest body can only rotate backward, and the control assembly is connected to the first pawl;

[0011] A release assembly is arranged on the armrest seat and is used to drive the armrest body to rotate forward.

[0012] By adopting the above technical solution, when the armrest body is stored, the armrest body rotates backward, and the armrest body drives the first ratchet to rotate synchronously. After the armrest body rotates into place, the first pawl cooperates with the first ratchet to limit the armrest body, thereby reducing the probability of the armrest body falling down automatically. When in use, the control component is started to disengage the first pawl from the first ratchet, and the release component is started to drive the armrest body to rotate forward. After the armrest body rotates into place, the first pawl re-engages with the first ratchet. After the armrest body is used, the armrest body can be pushed back to its original position, thereby improving the convenience of using the rear seat armrest of the car.

[0013] Optionally, the release component includes:

[0014] A release box, wherein the release box is fixed in the armrest seat, and the rotating shaft extends into the release box;

[0015] The spiral spring is arranged in the release box and connected to the rotating shaft and is used to drive the rotating shaft in the unlocked state to rotate. When the armrest body is rotated backward and locked, the spiral spring is gradually tightened.

[0016] By adopting the above technical solution, when the armrest body is pushed back, the spiral spring is gradually tightened. When the armrest body moves back to a vertical state, due to the limiting effect of the first pawl and the first ratchet wheel, the spiral spring continues to be in a tightened state. When the armrest is used, the control component disengages the first pawl from the first ratchet wheel. At this time, the spiral spring rebounds. The rebound of the spiral spring causes the rotating shaft to rotate forward, thereby pushing the armrest body to rotate forward, thereby realizing the rotation of the armrest body. There is no need for the passenger to bend or pull the armrest body at a specific angle, thereby improving the convenience of using the rear seat armrest of the car.

[0017] Optionally, the control component includes:

[0018] An unlocking button, the unlocking button being rotatably disposed on the outer surface of the armrest body;

[0019] A cable, wherein the cable is inserted into the armrest body, and two ends of the cable are respectively connected to the unlocking button and the first pawl;

[0020] An unlocking spring is arranged between the unlocking button and the armrest body.

[0021] By adopting the above technical solution, when the unlocking button is pressed, the unlocking spring contracts. At the same time, the unlocking button drives the cable to pull the first pawl away from the first ratchet wheel. Then, the scroll spring is released and drives the armrest body to rotate. When in use, only the unlocking button needs to be pressed, thereby improving the convenience of using the rear seat armrest of the vehicle.

[0022] Optionally, a limiting mechanism for limiting the armrest body in a horizontal state is further provided inside the armrest body.

[0023] By adopting the above technical solution, when the armrest body rotates to the horizontal state, the limiting mechanism limits the armrest body, reducing the probability of the armrest body returning due to bumps or vibrations. When the armrest body is not needed, it can be pushed back to its original position.

[0024] Optionally, the limiting mechanism includes:

[0025] A second ratchet wheel, which is coaxially fixed on the rotating shaft and is arranged opposite to the first ratchet wheel;

[0026] A second pawl, which is arranged inside the armrest body and meshes with the second ratchet wheel. When the second ratchet wheel meshes with the second pawl, the armrest body can only rotate forward;

[0027] A driving component, which is connected to the second pawl and is used to drive the second pawl to disengage from the second ratchet wheel.

[0028] By adopting the above technical solution, in the initial state, the second ratchet wheel meshes with the second pawl, and the first ratchet wheel meshes with the first pawl. The armrest body is in a vertical locked state. When the armrest body needs to be used, the first pawl disengages from the first ratchet wheel, and the scroll spring rebounds to drive the armrest body to rotate forward. The rotating shaft rotates to drive the first ratchet wheel and the second ratchet wheel to rotate synchronously. During the rotation, the second pawl meshes with the second ratchet wheel. When the armrest body is in the horizontal state, the second ratchet wheel meshes with the second pawl, and the first ratchet wheel meshes with the first pawl. At this time, due to the limitation of the second ratchet wheel and the second pawl, the armrest body cannot rotate backward. At the same time, due to the limitation of the first ratchet wheel and the first pawl, the armrest body cannot rotate forward, thereby realizing the limitation during the use of the armrest body, improving the stability of the use of the armrest body. After use, the driving component is activated to drive the second pawl to disengage from the second ratchet wheel. At this time, the armrest body is unlocked, and it can be pushed back to the initial position, thereby improving the convenience and stability of using the rear seat armrest of the vehicle.

[0029] Optionally, the driving component includes:

[0030] A driving button, which is rotatably arranged on the outer surface of the armrest body and is spaced apart from the unlocking button;

[0031] A pull rope, the pull rope is inserted into the armrest body, and the two ends of the pull rope are respectively connected to the driving button and the second ratchet;

[0032] A driving spring is arranged between the driving button and the armrest body.

[0033] By adopting the above technical solution, when the armrest body needs to be folded up, the driving button is pressed to compress the driving spring, and at the same time, the driving button drives the pull rope to pull the second pawl out of the second ratchet, and then push the armrest body backward to move back to the initial position. During the return process of the armrest body, the driving spring is gradually reset. When the armrest body moves back to the initial position, the second pawl re-engages with the second ratchet, thereby realizing the return of the armrest body.

[0034] Optionally, a cup groove and a storage groove are provided on the armrest body at intervals.

[0035] By adopting the above technical solution, when the armrest body is in a horizontal state, a water cup can be placed in the cup groove, and items can be placed in the storage groove, thereby improving the functionality of the rear seat armrest of the car.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. In the locked state, the armrest body is used as a seat backrest. When the armrest needs to be used, the control component starts to control the locking mechanism to open, the armrest body is unlocked and rotates forward around the axis of the rotation axis. After the armrest is used, the armrest body is pushed to rotate backward around the axis of the rotation axis and move back to the initial position. The locking mechanism locks the armrest body, and the passenger does not need to bend or pull the armrest body at a specific angle, thereby improving the convenience and stability of using the rear seat armrest of the car.

[0038] 2. In the initial state, the second ratchet wheel is meshed with the second pawl, the first ratchet wheel is meshed with the first pawl, and the armrest body is in a vertical locked state. When the armrest body needs to be used, the first pawl is disengaged from the first ratchet wheel, and the spiral spring rebounds to drive the armrest body to rotate forward. The rotation of the rotating shaft drives the first ratchet wheel and the second ratchet wheel to rotate synchronously. During the rotation process, the second pawl is meshed with the second ratchet wheel. When the armrest body is in a horizontal state, the second ratchet wheel is meshed with the second pawl, and the first ratchet wheel is meshed with the first pawl. At this time, due to the limitation of the second ratchet wheel and the second pawl, the armrest body cannot rotate backward. At the same time, due to the limitation of the first ratchet wheel and the first pawl, the armrest body cannot rotate forward. In this way, the armrest body is limited when in use, thereby improving the stability of the armrest body in use. After use, the driving assembly is started to drive the second pawl to disengage from the second ratchet wheel. At this time, the armrest body is unlocked, and the armrest body is pushed back to the initial position, thereby improving the convenience and stability of using the rear seat armrest of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0040] Figure 2 It is a schematic diagram of the overall structure of the armrest body in the present application;

[0041] Figure 3 It is a schematic diagram of the structure of the locking mechanism in the present application;

[0042] Figure 4 It is Figure 3 an enlarged schematic diagram of part A in

[0043] Figure 5 It is Figure 3 an enlarged schematic diagram of part B in

[0044] Figure 6 It is a partial cross-sectional view of the armrest body in the present application.

[0045] Reference numerals: 1, armrest base; 11, seat; 12, rotating shaft; 2, armrest body; 21, cup slot; 22, storage slot; 231, limiting track; 232, positioning track; 24, first fixing block; 241, torsion spring; 25, first groove; 26, second fixing block; 27, second groove; 3, locking mechanism; 31, first ratchet; 32, first pawl; 33, release assembly; 331, release box; 332, volute spring; 4, control assembly; 41, unlocking button; 42, cable; 43, unlocking spring; 5, limiting mechanism; 51, second ratchet; 52, second pawl; 53, driving assembly; 531, driving button; 532, pull rope; 533, driving spring. Detailed Description of the Invention

[0046] The following further describes the present application in detail with reference to the attached Figures 1-6 drawings.

[0047] An embodiment of the present application discloses an automotive rear seat armrest.

[0048] Referring to Figure 1 and Figure 2 , an automotive rear seat armrest includes an armrest base 1 and an armrest body 2. The armrest base 1 is fixedly provided between two seats 11 of the automotive rear seat, and the height of the armrest base 1 is lower than that of the seat 11. The armrest base 1 is concave-shaped, and a horizontally extending rotating shaft 12 is rotatably provided at the top of the armrest base 1. The armrest body 2 is fixedly provided on the rotating shaft 12 and can rotate back and forth around the axis of the rotating shaft 12. A locking mechanism 3 is provided on the armrest body 2, and a control assembly 4 for controlling the opening and closing of the locking mechanism 3 is provided on the armrest body 2.

[0049] Referring to Figure 1 and Figure 2, in the initial state, the armrest body 2 is in a vertical locked state. When in use, the armrest body 2 is in a horizontal state. Taking the armrest body 2 being in a horizontal state as an example, the upper surface of the armrest body 2 has a cup slot 21 for placing a water cup, and the upper surface of the armrest body 2 also has a storage slot 22. A shielding cover (not shown in the figure) is rotatably provided in the storage slot 22. The armrest body 2 has an installation cavity inside, and the installation cavity is located below the cup slot 21 and the storage slot 22. The rotating shaft 12 is located in the installation cavity and extends horizontally and extends into the armrest seat 1.

[0050] Referring to Figure 2 , Figure 3 and Figure 4 , the locking mechanism 3 includes a first ratchet wheel 31, a first pawl 32 and a release assembly 33. The first ratchet wheel 31 is coaxially fixed on the rotating shaft 12 and is located in the installation cavity. A first fixing block 24 is provided in the installation cavity. The first pawl 32 is rotatably provided on the first fixing block 24 through a torsion spring 241 and meshes with the first ratchet wheel 31. When the first pawl 32 meshes with the first ratchet wheel 31, the armrest body 2 can only rotate backward around the axis of the rotating shaft 12.

[0051] Referring to Figure 2 and Figure 3 , the release assembly 33 is provided on the armrest seat 1 and is used to drive the armrest body 2 to rotate forward. The release assembly 33 includes a release box 331 and a volute spring 332. The release box 331 is fixed in the armrest seat 1. One end of the rotating shaft 12 extends into the release box 331. The inner end of the volute spring 332 is fixed on the rotating shaft 12, and the other end of the volute spring 332 is fixedly connected to the inner wall of the release box 331. When the armrest body 2 rotates backward from the horizontal state to the vertical state, the volute spring 332 gradually tightens. When the first pawl 32 disengages from the first ratchet wheel 31, the armrest body 2 is unlocked, and the volute spring 332 releases and drives the rotating shaft 12 to rotate forward.

[0052] Referring to Figure 2 , Figure 3 and Figure 5 , the control assembly 4 is connected to the first pawl 32 and is used to control the first pawl 32 to disengage from the first ratchet wheel 31. The control assembly 4 includes an unlocking button 41, a cable 42 and an unlocking spring 43. There is a first groove 25 on the outer surface of the armrest body 2 away from the rotating shaft 12. The unlocking button 41 is rotatably provided in the first groove 25. The cable 42 is threaded through the installation cavity. The two ends of the cable 42 are respectively connected to the unlocking button 41 and the first pawl 32. A limiting track 231 for limiting the cable 42 is provided in the installation cavity. The extending direction of the limiting track 231 is the same as the extending direction of the cable 42, and the cable 42 slides in the limiting track 231.

[0053] Referring to Figure 2 , Figure 3 and Figure 5, the unlocking spring 43 is fixedly arranged on the inner bottom wall of the first groove 25. The other end of the unlocking spring 43 is fixedly connected to the unlocking button 41. The resilience speed of the unlocking spring 43 is less than that of the scroll spring 332. When the unlocking button 41 is pressed, the unlocking button 41 rotates and compresses the unlocking spring 43. At the same time, the first pawl 32 is driven by the cable 42 to disengage from the first ratchet wheel 31. Then, the scroll spring 332 is released and drives the rotating shaft 12 to rotate forward to the horizontal state.

[0054] Referring to Figure 2 and Figure 3 , a limiting mechanism 5 for limiting the armrest body 2 in the horizontal state is further arranged in the armrest body 2. The limiting mechanism 5 includes a second ratchet wheel 51, a second pawl 52 and a driving component 53. The second ratchet wheel 51 is coaxially fixedly arranged on the rotating shaft 12 and is located in the installation cavity. The first ratchet wheel 31 and the second ratchet wheel 51 are oppositely arranged at both ends of the rotating shaft 12. A second fixing block 26 is arranged in the installation cavity. The second pawl 52 is rotatably arranged on the second fixing block 26 through a torsion spring 241 and meshes with the second ratchet wheel 51. When the second pawl 52 meshes with the second ratchet wheel 51, the armrest body 2 can only rotate forward around the axis of the rotating shaft 12.

[0055] Referring to Figure 2 and Figure 3 , the driving component 53 is arranged on the armrest body 2 and is connected to the second pawl 52 and used to drive the second pawl 52 to disengage from the second ratchet wheel 51. The driving component 53 includes a driving button 531, a pulling rope 532 and a driving spring 533.

[0056] Referring to Figure 2 , Figure 3 and Figure 6 , on the outer surface of one end of the armrest body 2 far from the rotating shaft 12, there is a second groove 27. The first groove 25 and the second groove 27 are arranged at intervals. The driving button 531 is rotatably arranged in the second groove 27. The pulling rope 532 is arranged in the installation cavity. Both ends of the cable 42 are respectively connected to the driving button 531 and the second pawl 52. A positioning track 232 for limiting the pulling rope 532 is arranged in the installation cavity. The extending direction of the positioning track 232 is consistent with the extending direction of the pulling rope 532, and the pulling rope 532 slides in the positioning track 232.

[0057] Referring to Figure 2 , Figure 3 and Figure 6The driving spring 533 is fixed on the inner bottom wall of the second groove 27, and the other end of the driving spring 533 is fixedly connected to the driving button 531. The driving button 531 is pressed, and the driving button 531 rotates and squeezes the driving spring 533. At the same time, the second pawl 52 is driven to disengage the second ratchet wheel 51 through the pull rope 532. At this time, the first pawl 32 and the first ratchet wheel 31 are in a meshing state, pushing the armrest body 2 backward until the armrest body 2 is in a vertical state. In the process of pushing the armrest body 2, the armrest body 2 can stop at any angle during the rotation process. When stopping, due to the restriction of the first pawl 32 and the first ratchet wheel 31, the armrest body 2 will not rotate forward. At the same time, due to the restriction of the second pawl 52 and the second ratchet wheel 51, the armrest will not rotate backward. The armrest body 2 is in a stable state and can be used as an armrest to rely on, which is suitable for different support requirements. After the armrest is rotated into place, the spiral spring 332 is tightened, and the armrest body 2 is used as a backrest.

[0058] Reference Figure 2 , Figure 3 and Figure 6 In this embodiment, for the sake of easy distinction, the unlocking button 41 is rectangular and the driving button 531 is oval. In other embodiments, the two buttons can also be distinguished by color or material to improve the convenience of use.

[0059] Reference Figure 2 and Figure 3 In the initial state, the armrest body 2 is in a vertical locked state and used as a backrest. At this time, the spiral spring 332 is in a tightened state, and the second ratchet 51 is engaged with the second pawl 52. However, the armrest body 2 is at the lower limit of the engagement between the first ratchet 31 and the first pawl 32. When the armrest body 2 needs to be used, the unlocking button 41 is pressed to drive the first pawl 32 to disengage from the first ratchet 31 through the cable 42. The spiral spring 332 rebounds and drives the armrest body 2 to rotate forward. The rotation of the rotating shaft 12 drives the first ratchet 31 and the second ratchet 51 to rotate synchronously. During the rotation, the second pawl 52 is engaged with the second ratchet 51, thereby realizing the automatic folding of the armrest body 2 without the passenger having to bend or pull the armrest body 2 at a specific angle.

[0060] Reference Figure 2 and Figure 3 When the armrest body 2 is in a horizontal state, due to the rebound effect of the unlocking spring 43, the first ratchet 31 and the first pawl 32 return to the meshing state. At this time, due to the limitation of the second ratchet 51 and the second pawl 52, the armrest body 2 cannot rotate backward. At the same time, due to the limitation of the first ratchet 31 and the first pawl 32, the armrest body 2 cannot rotate forward, thereby realizing the limitation of the armrest body 2 when in use, thereby improving the stability of the armrest body 2 when in use.

[0061] Reference Figure 2 and Figure 3After use, pressing the drive button 531 drives the second pawl 52 to disengage the second ratchet 51 through the pull rope 532. At this time, the armrest body 2 is unlocked, and the passenger can push the armrest body 2 back to the initial position. In the process of pushing the armrest body 2, the armrest body 2 can stop at any angle during the rotation process. When stopping, due to the restrictions of the first pawl 32 and the first ratchet 31, the armrest body 2 will not rotate forward. At the same time, due to the restrictions of the second pawl 52 and the second ratchet 51, the armrest will not rotate backward. The armrest body 2 is in a stable state and can be used as an armrest to rely on, which is suitable for different support requirements. After the armrest is rotated into place, the spiral spring 332 is tightened, and the armrest body 2 is used as a backrest, thereby improving the convenience and stability of using the rear seat armrest of the car.

[0062] The working principle of the embodiment of the present application is as follows:

[0063] In the initial state, the armrest body 2 is in a vertical locked state and used as a backrest. At this time, the spiral spring 332 is in a tightened state, and the second ratchet 51 is engaged with the second pawl 52. However, the armrest body 2 is at the lower limit of the engagement between the first ratchet 31 and the first pawl 32. When the armrest body 2 needs to be used, the unlocking button 41 is pressed to drive the first pawl 32 to disengage from the first ratchet 31 through the cable 42. The spiral spring 332 rebounds and drives the armrest body 2 to rotate forward. The rotation of the rotating shaft 12 drives the first ratchet 31 and the second ratchet 51 to rotate synchronously. During the rotation, the second pawl 52 is engaged with the second ratchet 51, thereby realizing the automatic folding of the armrest body 2 without the passenger having to bend or pull the armrest body 2 at a specific angle.

[0064] When the armrest body 2 is in a horizontal state, due to the rebound effect of the unlocking spring 43, the first ratchet 31 and the first pawl 32 return to the meshing state. At this time, due to the limitation of the second ratchet 51 and the second pawl 52, the armrest body 2 cannot rotate backward. At the same time, due to the limitation of the first ratchet 31 and the first pawl 32, the armrest body 2 cannot rotate forward, thereby realizing the limitation of the armrest body 2 when in use, thereby improving the stability of the armrest body 2 when in use.

[0065] After use, press the drive button 531 to drive the second pawl 52 away from the second ratchet wheel 51 through the pull rope 532. At this time, the armrest body 2 is unlocked, and the passenger can push the armrest body 2 back to the initial position. During the process of pushing the armrest body 2, the armrest body 2 can stop at any angle during rotation. When it stops, due to the limitation of the first pawl 32 and the first ratchet wheel 31, the armrest body 2 will not rotate forward. At the same time, due to the limitation of the second pawl 52 and the second ratchet wheel 51, the armrest will not rotate backward either. The armrest body 2 is in a stable state and can be used as an armrest for support, adapting to different support requirements. After the armrest rotates in place, the scroll spring 332 is tightened, and the armrest body 2 is used as a backrest. Therefore, the convenience and stability of using the rear seat armrest of the car are improved.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rear seat armrest for a car, characterized in that: The invention comprises an armrest seat (1) and an armrest body (2), wherein the armrest seat (1) is located between two seats (11) at the rear of a car, a rotating shaft (12) is rotatably provided at the top of the armrest seat (1), the armrest body (2) is fixedly arranged on the rotating shaft (12), a locking mechanism (3) is provided on the armrest body (2), and a control component (4) for controlling the opening and closing of the locking mechanism (3) is provided on the armrest body (2).

2. The rear seat armrest of a car according to claim 1, characterized in that: The locking mechanism (3) comprises: A first ratchet wheel (31), wherein the first ratchet wheel (31) is coaxially fixed on the rotating shaft (12); a first pawl (32), the first pawl (32) being arranged in the armrest body (2) and meshing with the first ratchet (31); when the first pawl (32) meshes with the first ratchet (31), the armrest body (2) can only rotate backwards, and the control assembly (4) is connected to the first pawl (32); A release assembly (33) is arranged on the armrest seat (1) and is used to drive the armrest body (2) to rotate forward.

3. The rear seat armrest of a car according to claim 2, characterized in that: The release assembly (33) comprises: A release box (331), wherein the release box (331) is fixedly arranged in the armrest seat (1), and the rotating shaft (12) extends into the release box (331); A spiral spring (332) is arranged in the release box (331) and connected to the rotating shaft (12) and is used to drive the rotating shaft (12) in the unlocked state to rotate. When the armrest body (2) is rotated backward to lock, the spiral spring (332) is gradually tightened.

4. The rear seat armrest of a car according to claim 2, characterized in that: The control component (4) comprises: An unlocking button (41), the unlocking button (41) being rotatably disposed on the outer surface of the armrest body (2); A pull cable (42), wherein the pull cable (42) is inserted into the armrest body (2), and two ends of the pull cable (42) are respectively connected to the unlocking button (41) and the first ratchet (32); An unlocking spring (43), wherein the unlocking spring (43) is arranged between the unlocking button (41) and the armrest body (2).

5. The rear seat armrest of a car according to claim 2, characterized in that: A limiting mechanism (5) for limiting the position of the armrest body (2) in a horizontal state is also provided in the armrest body (2).

6. The rear seat armrest of a car according to claim 5, characterized in that: The limiting mechanism (5) comprises: a second ratchet (51), the second ratchet (51) being coaxially fixed on the rotating shaft (12) and arranged opposite to the first ratchet (31); a second ratchet pawl (52), the second ratchet pawl (52) being disposed in the armrest body (2) and meshing with the second ratchet wheel (51); when the second ratchet wheel (51) meshes with the second ratchet pawl (52), the armrest body (2) can only rotate forward; A driving assembly (53) is connected to the second ratchet pawl (52) and is used to drive the second ratchet pawl (52) to disengage from the second ratchet wheel (51).

7. The rear seat armrest of a car according to claim 6, characterized in that: The driving assembly (53) comprises: A driving button (531), the driving button (531) being rotatably disposed on the outer surface of the armrest body (2) and spaced apart from the unlocking button (41); A pull rope (532), wherein the pull rope (532) is inserted into the armrest body (2), and two ends of the pull rope (532) are respectively connected to the driving button (531) and the second ratchet (52); A driving spring (533), wherein the driving spring (533) is arranged between the driving button (531) and the armrest body (2).

8. The rear seat armrest of a car according to claim 1, characterized in that: The armrest body (2) is provided with a cup groove (21) and an object storage groove (22) at intervals.

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