Multi-attitude car seat

Abstract

The present application relates to the technical field of automobile seat, and discloses a multi-posture automobile seat, wherein a slide rail is arranged on a vehicle body to allow the automobile seat to slide forward and backward, and the automobile seat comprises a base, a cushion and a backrest, the base is arranged on the slide rail to slide forward and backward, the cushion is arranged on the base and can be adjusted in rotation relative to the base, and the backrest is rotatably arranged on the cushion; wherein the backrest comprises a backrest body and a shoulder support rotatably arranged on the backrest body, the cushion is provided with a height adjustment module and a back inclination adjustment module, and a leg support is arranged on the cushion close to the front end position of the cushion, the leg support can be unfolded forward relative to the cushion to support the legs of a passenger, and the leg support can be folded on the cushion, and the automobile seat has the advantages of multiple functions, multiple postures, convenient adjustment of the shoulder support and the leg support, and high comfort of the passenger.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more particularly to a multi-position automotive seat. Background Technology

[0002] With the development of automotive intelligence, end customers have higher requirements for the multi-scenario and multi-position capabilities of car seats, demanding that car seats have more posture functions. The comfort of car seats directly affects the passenger's riding experience, and the existing multi-position car seat functions are relatively limited, leaving considerable room for expansion.

[0003] For example, the disclosure number "CN112977187A" discloses a zero-gravity car seat. In this solution, the height and rotation of the seat cushion assembly can be adjusted, and the rotation and locking of the backrest assembly can be achieved. The two work together to achieve zero-gravity adjustment of the car seat to ensure comfort.

[0004] For example, the publication number "CN116653729A" discloses a zero-gravity seat frame adjustment structure and automobile. In this solution, the seat frame can be adjusted to a zero-gravity state and can meet the support requirements of the seat for the three main parts of the passenger's feet, thighs and torso.

[0005] However, both solutions have the following problems: the backrest lacks shoulder adjustment, failing to support the passenger's shoulders; and the support for the passenger's lower legs is poor when the passenger is lying down; furthermore, the seat belt cannot be integrated into the seat, and Isofix cannot be integrated into the rear tube. In addition, in Solution 1, a central bracket is added to the lower end for fixation. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to propose a multi-functional, multi-posture car seat with shoulder support adjustment, leg support adjustment, and the ability to rotate and slide.

[0007] The technical solution adopted by this invention to solve its technical problem is to propose a multi-position car seat, which can be configured on the body of a car, and the body of the car is provided with a sliding rail for the car seat to slide back and forth. The car seat includes:

[0008] The base, seat cushion, and backrest are arranged sequentially from bottom to top. The base is slidably mounted on a slide rail. The seat cushion is mounted on the base and is adjustable relative to the base. The backrest is rotatably mounted on the seat cushion.

[0009] The backrest includes a backrest body and a shoulder support rotatably mounted on the backrest body. A first angle adjuster is provided between the shoulder support and the backrest body. A first motor is provided on the shoulder support. A drive gear is provided on the output shaft of the first motor. A driven gear is provided between the drive gear and the first adjuster. The driven gear meshes with the drive gear and can drive the first angle adjuster. The drive gear is located on the back side close to the backrest.

[0010] The seat cushion is equipped with a height adjustment module and a tilt adjustment module. The height adjustment module can drive the seat cushion to move up and down to adjust the height of the seat cushion. The tilt adjustment module can lift the front end of the seat cushion to make the car seat tilt back.

[0011] The seat cushion is provided with a leg rest near its front end. The leg rest can be extended forward relative to the seat cushion to support the passenger's legs. The leg rest can also be folded onto the seat cushion.

[0012] Furthermore, the first motor is located on the back side near the backrest, and the driven gear is located on the side near the front of the backrest;

[0013] The driving gear and the driven gear are disposed in the housing, and the central shaft of the driving gear extends out from one side of the housing, while the central shaft of the driven gear extends out from the other side of the housing.

[0014] Furthermore, a second angle adjuster is provided between the backrest body and the seat cushion, the second angle adjuster being used to adjust the tilt angle of the backrest relative to the seat cushion; the backrest can be rotated backward relative to the seat cushion and reclined to be flush with the seat cushion.

[0015] Furthermore, the leg rest includes a mounting body and a support plate, the mounting body being rotatably disposed at the front end of the seat cushion, and the support plate being telescopically disposed on the mounting body;

[0016] The seat cushion is equipped with a second motor, which is connected to the mounting body and can drive the mounting body to rotate relative to the seat cushion.

[0017] When the second motor drives the mounting body to rotate forward and unfold relative to the seat cushion, the support plate extends synchronously relative to the mounting body; when the second motor drives the mounting body to rotate backward and fold relative to the seat cushion, the support plate retracts synchronously relative to the mounting body.

[0018] Furthermore, a first rack is provided on the pallet, and a transmission gear is provided on the mounting body. The transmission gear meshes with the first rack, and the transmission gear can drive the first rack to extend and retract.

[0019] Furthermore, the mounting body includes a first bracket and a second bracket that are movably connected, the second bracket being connected to the first bracket, the transmission gear being mounted on the second bracket, and the tray being retractably mounted on the second bracket;

[0020] The first bracket is also equipped with a second rack, and the transmission gear is provided with an intermediate gear arranged coaxially with it. The intermediate gear meshes with the second rack. When the second rack meshes with the intermediate gear, it drives the transmission gear to rotate, thereby driving the first rack to extend and retract.

[0021] The first bracket is rotatably connected to the second motor, and the first bracket is rotatably connected to the seat cushion; the second bracket is rotatably connected to the seat cushion via a connector.

[0022] Furthermore, the height adjustment module, the tilt adjustment module, and the seat cushion form a five-bar linkage mechanism; the height adjustment module includes a height adjustment motor, and the tilt adjustment module includes a tilt adjustment motor, the height adjustment motor and the tilt adjustment motor respectively provide power for the height adjustment and the tilt adjustment of the seat cushion.

[0023] Furthermore, the five-bar linkage includes a base frame, multiple connecting brackets and an upper bracket, wherein one of the connecting brackets is rotatably connected to both the base frame and the upper bracket, and the base frame is provided with a shaped stop pin, and the connecting bracket is provided with a sliding groove. When the connecting bracket rotates relative to the base frame, the relative position of the shaped stop pin in the sliding groove changes.

[0024] The irregularly shaped stop pin can rotate clockwise and counterclockwise relative to the base frame. The irregularly shaped stop pin has a first protrusion and a second protrusion along its circumference. The distance between the first protrusion and the second protrusion is greater than the width of the slide groove.

[0025] When a car collides, the irregularly shaped stop pin rotates under force, and it can rotate until the first protrusion and the second protrusion respectively abut against the two side walls of the slide groove, so as to restrict the rotation of the connecting bracket.

[0026] Furthermore, the bottom of the cushion has a turntable, which is rotatable on the base.

[0027] Furthermore, the backrest is provided with a through slot for the seat belt to pass through; the side of the backrest body is provided with an armrest, and the backrest body is provided with an armrest drive motor, which can drive the armrest to rotate so as to realize the stepless adjustment of the armrest.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] In this invention, the backrest is rotatably mounted on the seat cushion, and a height adjustment module and a tilt adjustment module are configured on the seat cushion, forming a five-bar linkage mechanism with the seat cushion to realize height adjustment (i.e., lift adjustment) and tilt adjustment of the seat cushion. This allows the car seat to have multiple usage postures, such as: a normal passenger sitting posture; when the backrest is rotated backward relative to the seat cushion to fully recline, the passenger can lie on the car seat, and at this time, the leg rest on the seat cushion can rotate forward relative to the seat cushion and extend, providing support for the passenger's legs and ensuring the passenger's reclining comfort; by adjusting the tilt angle of the backrest relative to the seat cushion, adjusting the height of the seat cushion, and adjusting the extension degree of the leg rest relative to the seat cushion, the car seat can be adjusted to a zero-gravity state to ensure passenger comfort.

[0030] In this invention, a shoulder support is provided on the backrest, and the shoulder support can be rotated and adjusted relative to the main body of the backrest to provide support for the passenger's shoulders and improve passenger comfort. In this solution, a drive gear is set on the output shaft of the first motor, and the shoulder support is adjusted by driving the first angle adjuster through a driven gear meshing with the drive gear. The drive gear can be arranged near the back of the backrest, that is, the synchronizing rod can be placed at the rear, and the first motor can also be placed at the rear, without changing the original position of the first angle adjuster, ensuring that the synchronizing rod and the first motor do not touch the passenger's back, thus improving passenger comfort.

[0031] In this invention, the leg rest has a first rack on its support plate, a transmission gear on the second bracket of its mounting body, and a second rack on the first bracket of its mounting body. During use, when the second motor drives the mounting body to unfold forward relative to the seat cushion (i.e., when the leg rest unfolds), the support plate unfolds downward relative to the mounting body under the meshing transmission of the first rack and transmission gear, as well as the second rack and intermediate gear. That is, the unfolding of the support plate is achieved simultaneously with the rotation and unfolding of the leg rest. This can be achieved with just one motor, resulting in low cost and high adjustment efficiency.

[0032] In this invention, an irregularly shaped stop pin is provided between a connecting bracket and a base frame. The irregularly shaped stop pin can rotate clockwise and counterclockwise relative to the base frame. When a car collides, the irregularly shaped stop pin rotates under force, causing it to rotate relative to the base frame, so that the first protrusion and the second protrusion respectively abut against the two side walls of the slide groove. Since the distance between the first protrusion and the second protrusion is greater than the width of the slide groove, the irregularly shaped protrusion will restrict the rotation of the connecting bracket, prevent the seat cushion from shifting, and reduce the injury to passengers in the event of a collision. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the car seat of the present invention mounted on a track;

[0034] Figure 2 for Figure 1 A schematic diagram of the structure after removing the track and base;

[0035] Figure 3 for Figure 2 A structural diagram from another perspective;

[0036] Figure 4 This is a schematic diagram of the leg support structure;

[0037] Figure 5 This is an assembly drawing of the first rack, second rack, intermediate gear, and transmission gear in the leg support;

[0038] Figure 6 This is a schematic diagram of the backrest structure;

[0039] Figure 7 A schematic diagram of the drive mechanism for shoulder support on the backrest;

[0040] Figure 8 This is a schematic diagram of the seat cushion structure;

[0041] Figure 9 for Figure 8 A structural diagram from another perspective;

[0042] Figure 10 This is an assembly drawing for the irregularly shaped stop pin, connecting bracket, and base frame.

[0043] In the picture:

[0044] 1. Slide rail;

[0045] 2. Base;

[0046] 3. Seat cushion; 31. Height adjustment module; 310. Height adjustment motor; 32. Tilt adjustment module; 320. Tilt adjustment motor; 330. Base frame; 331. Connecting bracket; 331A. Slide groove; 332. Upper bracket; 333. Irregularly shaped stop pin; 333A. First protrusion; 333B. Second protrusion;

[0047] 4. Backrest; 40. Backrest main body; 41. Shoulder support; 42. First angle adjuster; 43. First motor; 44. Drive gear; 440. Synchronizing rod; 45. Driven gear; 46. Box body;

[0048] 5. Leg support; 50A. First bracket; 50B. Second bracket; 501. Transmission gear; 502. Second rack; 503. Intermediate gear; 51. Support plate; 510. First rack; 52. Second motor. Detailed Implementation

[0049] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0051] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] like Figures 1-3As shown, a multi-position car seat can be configured on the body of a car, and the body is provided with a slide rail 1 for the car seat to slide back and forth. The car seat in this embodiment mainly includes: a base 2, a seat cushion 3, a backrest 4, and a leg rest 5.

[0055] The base 2, seat cushion 3, and backrest 4 are arranged sequentially from bottom to top. The base 2 is slidably mounted on the slide rail 1. The seat cushion 3 is mounted on the base 2 and can be rotated relative to the base 2 for adjustment. Specifically, the bottom of the seat cushion 3 has a turntable that can rotate 360° on the base 2. During actual rotation adjustment, the turntable has corresponding locking points at 90°, 180°, 270°, and 360° rotations, providing a distinct locking feel, allowing the seat to stop at these angles.

[0056] like Figures 2-5 As shown, in this embodiment, a leg rest 5 is disposed near the front end of the seat cushion 3. The leg rest 5 can unfold forward relative to the seat cushion 3 to support the passenger's legs; and the leg rest 5 can be folded onto the seat cushion 3. The leg rest 5 prevents the passenger's lower legs from dangling in the air, improving the passenger's riding comfort. Specifically, the leg rest 5 includes a mounting body and a support plate 51. The mounting body is rotatably disposed at the front end of the seat cushion 3, and the support plate 51 is telescopically disposed on the mounting body. A second motor 52 is disposed on the seat cushion 3, and the second motor 52 is connected to the mounting body. The second motor 52 can drive the mounting body to rotate relative to the seat cushion 3, that is, the second motor 52 drives the leg rest 5 to move between the unfolded position and the folded position. When the second motor 52 drives the mounting body to rotate forward and unfold relative to the seat cushion 3, the support plate 51 extends synchronously relative to the mounting body. When the second motor 52 drives the mounting body to rotate backward and fold relative to the seat cushion 3, the support plate 51 retracts synchronously relative to the mounting body. One second motor 52 can drive the leg support 5 to rotate and unfold at the same time, and drive the leg support 5 to fold and retract at the same time, which has high adjustment efficiency and low cost.

[0057] More specifically, a first rack 510 is mounted on the support plate 51, and a transmission gear 501 is mounted on the mounting body. The transmission gear 501 meshes with the first rack 510, and the transmission gear 501 can drive the first rack 510 to extend and retract. The mounting body includes a first bracket 50A and a second bracket 50B that are movably connected. The first bracket 50A is rotatably connected to the second motor 52 and the seat cushion 3; the second bracket 50B is rotatably connected to the seat cushion 3 via a connector. The transmission gear 501 is mounted on the second bracket 50B, and the support plate 51 is movably mounted on the second bracket 50B. A second rack 502 is also mounted on the first bracket 50A. The transmission gear 501 has an intermediate gear 503 coaxially arranged with it, and the intermediate gear 503 meshes with the second rack 502. When the second rack 502 meshes with the intermediate gear 503, it drives the transmission gear 501 to rotate, thereby driving the first rack 510 to extend and retract.

[0058] In this embodiment, the leg rest 5 is equipped with a first rack 510 on its support plate 51, a transmission gear 501 on the second bracket 50B of its mounting body, and a second rack 502 on the first bracket 50A of its mounting body. During use, when the second motor 52 drives the mounting body to unfold forward relative to the seat cushion 3 (i.e., when the leg rest 5 unfolds), the support plate 51 unfolds downward relative to the mounting body under the meshing transmission of the first rack 510 and the transmission gear 501, as well as the second rack 502 and the intermediate gear 503. That is, the unfolding of the support plate 51 is achieved simultaneously with the rotation and unfolding of the leg rest 5. This can be achieved with just one motor, resulting in low cost and high adjustment efficiency.

[0059] When the second motor 52 drives the mounting body to rotate and unfold, the second rack 502 on the first bracket 50A meshes with the intermediate gear 503 on the second bracket 50B. The second rack 502 drives the intermediate gear 503 to rotate. The intermediate gear 503 and the transmission gear 501 are coaxially arranged, and the intermediate gear 503 makes the transmission gear 501 rotate synchronously. The transmission gear 501 meshes with the first rack 510, causing the first rack 510 to extend and retract. The first rack 510 is fixed on the support plate 51, so the support plate 51 extends and retracts with the first rack 510.

[0060] The process by which the second motor 52 drives the leg support 5 to fold is the reverse of the process described above, and will not be repeated here.

[0061] like Figures 2-3 as well as Figures 6-7As shown, in this embodiment, the backrest 4 is rotatably mounted on the seat cushion 3. The backrest 4 includes a backrest body 40 and a shoulder support 41 rotatably mounted on the backrest body 40. A first angle adjuster 42 is provided between the shoulder support 41 and the backrest body 40. A first motor 43 is mounted on the shoulder support 41. A drive gear 44 is mounted on the output shaft of the first motor 43. A driven gear 45 is provided between the drive gear 44 and the first adjuster. The driven gear 45 meshes with the drive gear 44 and can drive the first angle adjuster 42. The drive gear 44 is located near the back of the backrest 4.

[0062] Specifically, in this embodiment, the first motor 43 is located near the back of the backrest 4, the driven gear 45 is located near the front of the backrest 4, the driving gear 44 and the driven gear 45 are disposed in the housing 46, and the central shaft of the driving gear 44 extends out from one side of the housing 46, while the central shaft of the driven gear 45 extends out from the other side of the housing 46. A second angle adjuster is provided between the backrest body 40 and the seat cushion 3, which is used to adjust the tilt angle of the backrest 4 relative to the seat cushion 3; the backrest 4 can be rotated backward relative to the seat cushion 3 and reclined to be flush with the seat cushion 3.

[0063] In practical use, this embodiment features a shoulder support 41 on the backrest 4, which can rotate and adjust relative to the backrest body 40 to provide support for the passenger's shoulders and improve passenger comfort. In this design, a drive gear 44 is mounted on the output shaft of the first motor 43, and the shoulder support 41 is adjusted by driving the first angle adjuster 42 via a driven gear 45 meshing with the drive gear 44. The drive gear 44 can be positioned near the back of the backrest 4, meaning the synchronizing rod 440 and the first motor 43 can also be positioned rearwards without changing the original position of the first angle adjuster 42. This ensures that the synchronizing rod 440 and the first motor 43 do not touch the passenger's back, thus improving passenger comfort.

[0064] Preferably, the backrest 4 has a through slot for the seat belt to pass through. In this embodiment, the seat belt can be fully integrated into the seat, ensuring that the seat belt moves with the seat and improving passenger safety. The backrest body 40 has armrests (not shown in the figure) on its side, and the backrest body 40 has an armrest drive motor. The armrest drive motor can drive the armrest to rotate, so as to realize stepless adjustment of the armrest and ensure more comfortable adjustment for passengers in a zero-gravity posture.

[0065] like Figures 2-3 as well as Figures 8-10As shown, the seat cushion 3 in this embodiment is equipped with a height adjustment module 31 and a tilt adjustment module 32. The height adjustment module 31 drives the seat cushion 3 to move up and down to adjust its height; the tilt adjustment module 32 lifts the front end of the seat cushion 3 to tilt the car seat backward. In this embodiment, the height adjustment module 31, the tilt adjustment module 32, and the seat cushion 3 form a five-bar linkage. The height adjustment module 31 includes a height adjustment motor 310, and the tilt adjustment module 32 includes a tilt adjustment motor 320. The height adjustment motor 310 and the tilt adjustment motor 320 provide power for the height adjustment and tilt adjustment of the seat cushion 3, respectively. In actual use, the five-bar linkage of the seat cushion 3 in this embodiment achieves both seat height adjustment and seat tilt adjustment. Each function is implemented by a separate motor, and the tilt and height adjustments do not interfere with each other. During use, the rear tube of the seat cushion 3 does not move with the seat and has a single direction, facilitating the installation of an ISOFIX interface for easy connection of a child safety seat.

[0066] Specifically, the five-bar linkage of this embodiment includes a base frame 330, multiple connecting brackets 331, and an upper bracket 332. Each connecting bracket 331 is rotatably connected to both the base frame 330 and the upper bracket 332. The base frame 330 is equipped with a shaped stop pin 333. The connecting bracket 331 has a sliding groove 331A. When the connecting bracket 331 rotates relative to the base frame 330, the relative position of the shaped stop pin 333 in the sliding groove 331A changes. The shaped stop pin 333 can rotate clockwise and counterclockwise relative to the base frame 330. The shaped stop pin 333 has a first protrusion 333A and a second protrusion 333B along its circumference. The distance between the first protrusion 333A and the second protrusion 333B is greater than the width of the sliding groove 331A. When a collision occurs, the irregularly shaped stop pin 333 rotates under force, causing the first protrusion 333A and the second protrusion 333B to abut against the two side walls of the slide groove 331A, thereby restricting the rotation of the connecting bracket 331. In actual use, an irregularly shaped stop pin 333 is provided between a connecting bracket 331 and a base frame 330. The irregularly shaped stop pin 333 can rotate clockwise and counterclockwise relative to the base frame 330. When a collision occurs, the irregularly shaped stop pin 333 rotates under force, causing the first protrusion 333A and the second protrusion 333B to abut against the two side walls of the slide groove 331A, respectively. Since the distance between the first protrusion 333A and the second protrusion 333B is greater than the width of the slide groove 331A, the irregularly shaped protrusions restrict the rotation of the connecting bracket 331, preventing the seat cushion 3 from shifting and reducing the injury to the passenger in the event of a collision.

[0067] In summary, in this embodiment, the backrest 4 is rotatably mounted on the seat cushion 3, and a height adjustment module 31 and a tilt adjustment module 32 are configured on the seat cushion 3. These modules form a five-bar linkage with the seat cushion 3, enabling height adjustment (i.e., lift adjustment) and tilt adjustment of the seat cushion 3. This allows the car seat to have multiple usage postures, such as: a normal passenger sitting posture; when the backrest 4 is rotated backward relative to the seat cushion 3 to fully recline, the passenger can lie on the car seat, and at this time, the leg rest 5 on the seat cushion 3 can rotate forward relative to the seat cushion 3 and extend, providing support for the passenger's legs and ensuring the passenger's reclining comfort; by adjusting the tilt angle of the backrest 4 relative to the seat cushion 3, adjusting the height of the seat cushion 3, and adjusting the degree of extension of the leg rest 5 relative to the seat cushion 3, the car seat can be adjusted to a zero-gravity state, ensuring passenger comfort.

[0068] In this design, the car seat has multiple functions and postures, and the shoulder support 41 and leg rest 5 are easily adjustable, providing high passenger comfort.

Claims

1. A multi-position car seat, which can be configured on the body of a car, and the body is provided with a sliding rail for the car seat to slide back and forth, characterized in that... The car seat includes: The base, seat cushion, and backrest are arranged sequentially from bottom to top. The base is slidably mounted on a slide rail. The seat cushion is mounted on the base and is adjustable relative to the base. The backrest is rotatably mounted on the seat cushion. The backrest includes a backrest body and a shoulder support rotatably mounted on the backrest body. A first angle adjuster is provided between the shoulder support and the backrest body. A first motor is provided on the shoulder support. A drive gear is provided on the output shaft of the first motor. A driven gear is provided between the drive gear and the first angle adjuster. The driven gear meshes with the drive gear and can drive the first angle adjuster. The drive gear is located on the back side close to the backrest. The seat cushion is equipped with a height adjustment module and a tilt adjustment module. The height adjustment module can drive the seat cushion to move up and down to adjust the height of the seat cushion. The tilt adjustment module can lift the front end of the seat cushion to make the car seat tilt back. The seat cushion is provided with a leg rest near its front end. The leg rest can be extended forward relative to the seat cushion to support the passenger's legs. The leg rest can also be folded back onto the seat cushion. The height adjustment module, the tilt adjustment module, and the seat cushion form a five-bar linkage mechanism; the height adjustment module includes a height adjustment motor, and the tilt adjustment module includes a tilt adjustment motor, the height adjustment motor and the tilt adjustment motor provide power for the height adjustment and the tilt adjustment of the seat cushion, respectively; The five-bar linkage includes a base frame, multiple connecting brackets and an upper bracket. Each connecting bracket is rotatably connected to both the base frame and the upper bracket. The base frame is equipped with a shaped stop pin, and the connecting bracket is provided with a sliding groove. When the connecting bracket rotates relative to the base frame, the relative position of the shaped stop pin in the sliding groove changes. The irregularly shaped stop pin can rotate clockwise and counterclockwise relative to the base frame. The irregularly shaped stop pin has a first protrusion and a second protrusion along its circumference. The distance between the first protrusion and the second protrusion is greater than the width of the slide groove. When a car collides, the irregularly shaped stop pin is subjected to rotational force and can rotate until the first protrusion and the second protrusion respectively abut against the two side walls of the slide groove to restrict the rotation of the connecting bracket.

2. The multi-posture car seat according to claim 1, characterized in that, The first motor is located on the back side near the backrest, and the driven gear is located on the side near the front of the backrest; The driving gear and the driven gear are disposed in the housing, and the central shaft of the driving gear extends out from one side of the housing, while the central shaft of the driven gear extends out from the other side of the housing.

3. The multi-posture car seat according to claim 1, characterized in that, A second angle adjuster is provided between the backrest body and the seat cushion. The second angle adjuster is used to adjust the tilt angle of the backrest relative to the seat cushion. The backrest can be rotated backward relative to the seat cushion and reclined to be flush with the seat cushion.

4. The multi-posture automotive seat according to claim 1, characterized in that, The leg rest includes a mounting body and a support plate. The mounting body is rotatably disposed at the front end of the seat cushion, and the support plate is telescopically disposed on the mounting body. The seat cushion is equipped with a second motor, which is connected to the mounting body and can drive the mounting body to rotate relative to the seat cushion. When the second motor drives the mounting body to rotate forward and unfold relative to the seat cushion, the support plate extends synchronously relative to the mounting body; when the second motor drives the mounting body to rotate backward and fold relative to the seat cushion, the support plate retracts synchronously relative to the mounting body.

5. The multi-posture automotive seat according to claim 4, characterized in that, The pallet is provided with a first rack, and the mounting body is provided with a transmission gear. The transmission gear meshes with the first rack, and the transmission gear can drive the first rack to extend and retract.

6. The multi-posture automotive seat according to claim 5, characterized in that, The mounting body includes a first bracket and a second bracket that are movably connected, the transmission gear is mounted on the second bracket, and the tray is retractably mounted on the second bracket; The first bracket is also equipped with a second rack, and the transmission gear is provided with an intermediate gear arranged coaxially with it. The intermediate gear meshes with the second rack. When the second rack meshes with the intermediate gear, it drives the transmission gear to rotate, thereby driving the first rack to extend and retract. The first bracket is rotatably connected to the second motor, and the first bracket is rotatably connected to the seat cushion; the second bracket is rotatably connected to the seat cushion via a connector.

7. The multi-posture automotive seat according to claim 1, characterized in that, The bottom of the cushion has a turntable, which is rotatable on the base.

8. The multi-posture automotive seat according to claim 1, characterized in that, The backrest has a through slot for the seat belt to pass through; the backrest body has an armrest on its side and an armrest drive motor on its backrest body, which can drive the armrest to rotate so as to achieve stepless adjustment of the armrest.

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