Seat frame, vehicle seat, and vehicle

Abstract

This invention discloses a seat frame, a vehicle seat, and a vehicle, relating to the field of seat technology. The seat frame includes a mounting base, a seat cushion frame, a connecting frame, a backrest frame, and a first drive mechanism. The seat cushion frame and the connecting frame are disposed on the mounting base, and the backrest frame is rotatably mounted on the connecting frame. The first drive mechanism includes a first drive member, a first connecting rod, and a second connecting rod. The first drive member is disposed on the mounting base. One end of the first connecting rod is connected to the drive end of the first drive member, and the other end is rotatably connected to the connecting frame. One end of the second connecting rod is connected to the drive end of the first drive member, and the other end is rotatably connected to the connecting frame. The connecting frame is configured to move from one side of the seat cushion frame to the opposite side of the seat cushion frame under the drive of the first drive mechanism. The position movement of the backrest frame is driven by the first drive mechanism, and the entire seat reversal process is highly automated, improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of seating technology, and in particular to a seat frame, a vehicle seat, and a vehicle. Background Technology

[0002] In related technologies, vehicle seats are mostly set with a fixed orientation. Some reversible seats require users to manually change the seating direction, which is cumbersome and has a low level of intelligence, failing to meet users' needs for intelligent and automated use of seats. Summary of the Invention

[0003] This invention proposes a seat frame, a vehicle seat, and a vehicle, with the aim of providing a seat frame capable of automated reversing.

[0004] One embodiment of the present invention provides a seat frame comprising: Mounting base; A seat cushion frame is provided on the mounting base; The connecting frame is movably mounted on the mounting base and located on one side of the seat cushion frame; Backrest frame, rotatably mounted on the connecting frame; The seat frame further includes a first drive mechanism, which includes a first drive member, a first connecting rod, and a second connecting rod. The first drive member is disposed on the mounting base. One end of the first connecting rod is connected to the drive end of the first drive member, and the other end is rotatably connected to the connecting frame. One end of the second connecting rod is connected to the drive end of the first drive member, and the other end is rotatably connected to the connecting frame. The connecting frame is configured to move from one side of the seat cushion frame to the opposite side of the seat cushion frame under the drive of the first drive mechanism.

[0005] In one embodiment, the driving end of the first driving member is provided with a drive wheel; The first connecting rod includes a first segment, a second segment, and a third segment connected in sequence. The first segment and the second segment, and the third segment and the second segment are arranged at an angle. The first segment is provided with a first driven wheel, which meshes with the driving wheel; and / or The second link includes a fourth link segment, a fifth link segment, and a sixth link segment connected in sequence. The fourth link segment is set at an angle to the fifth link segment, and the sixth link segment is set at an angle to the fifth link segment. The fourth link segment is provided with a second driven wheel, which meshes with the driving wheel.

[0006] In one embodiment, the connecting frame is provided with a snap-fit ​​portion; the second rod segment is provided with a first limiting notch, which is located near the second connecting rod; the fifth rod segment is provided with a second limiting notch, which is located near the first connecting rod. The seat frame has a first seating state and a second seating state. In the first seating state, the locking part is engaged with the first limiting notch; in the second seating state, the locking part is engaged with the second limiting notch.

[0007] In one embodiment, the seat frame further includes a second drive mechanism, which includes a second drive member, a third link, and a fourth link. The second drive member is disposed on the seat cushion frame, and one end of the third link is rotatably connected to the mounting base, and the other end is rotatably connected to the seat cushion frame. One end of the fourth link is rotatably connected to the mounting base, and the other end is rotatably connected to the seat cushion frame and driven by the second drive component.

[0008] In one embodiment, the fourth link includes a main rod segment and a bent segment connected to each other, the main rod segment and the bent segment are arranged at an angle, the main rod segment is rotatably connected to the mounting base, the bent segment is provided with teeth, and the driving end of the second driving member is provided with a gear, the gear meshing with the teeth.

[0009] In one embodiment, the seat frame further includes a locking mechanism, which is disposed on the connecting frame, and the mounting base is provided with a first latch and a second latch at both ends along the length direction of the seat cushion frame. The seat frame has a first seating state and a second seating state. In the first seating state, the locking mechanism is locked with the first latch; in the second seating state, the locking mechanism is locked with the second latch.

[0010] In one embodiment, the connecting frame has a downwardly extending portion, the locking mechanism is disposed on the extending portion, and the extending portion has an abutment notch. In the first riding state, the abutment notch abuts against the first latch; in the second state, the abutment notch abuts against the second latch.

[0011] In one embodiment, the mounting base includes a slide rail and a sliding seat, the sliding seat being slidably disposed on the slide rail, the first driving member, the first connecting rod, and the second connecting rod being disposed on the sliding seat, the seat cushion frame being disposed on the sliding seat, and the first latch and the second latch being disposed on the sliding seat.

[0012] In one embodiment, the mounting base further includes a third driving mechanism, which includes a third driving member and a connecting shaft. The third driving member is disposed between the two sliding seats, and the connecting shaft is connected to the driving end of the third driving member. The connecting shaft is also connected to the sliding seat in a transmission manner.

[0013] In one embodiment, the seat frame further includes a fourth drive mechanism, which includes a fourth drive member disposed on the backrest frame and used to drive the backrest frame to rotate relative to the connecting frame.

[0014] In one embodiment, the seat cushion frame includes two leg support frames and two seat cushion side plates. The two leg support frames are spaced apart along the length of the seat cushion frame, and each seat cushion side plate is connected to the two leg support frames and located on the same side of the two leg support frames.

[0015] In one embodiment, the backrest frame includes two backrest side panels and a headrest frame, the headrest frame being connected to the two backrest side panels, and the end of each backrest side panel away from the headrest frame being rotatably connected to a connecting frame.

[0016] In one embodiment, the backrest frame further includes an upper horizontal plate and a lower horizontal plate, the upper horizontal plate being connected to two of the backrest side plates respectively, and the lower horizontal plate being connected to two of the backrest side plates respectively, the upper horizontal plate and the lower horizontal plate being spaced apart in a vertical direction.

[0017] An embodiment of the present invention also provides a vehicle seat, including a seat cushion filling, a backrest filling, a seat cushion cover, a backrest cover, and a seat frame as described above, wherein the seat cushion frame is at least partially embedded in the seat cushion filling, the backrest frame is at least partially embedded in the backrest filling, the seat cushion cover covers the seat cushion frame and the seat cushion filling, and the backrest cover covers the backrest frame and the backrest filling.

[0018] An embodiment of the present invention also proposes a vehicle including the vehicle seat described above.

[0019] This invention achieves a change in the seating orientation by movably mounting the connecting frame on the mounting base and, driven by a first drive mechanism, allowing the connecting frame and backrest frame to move from one side of the seat cushion frame to the opposite side. Specifically, the seat frame includes a mounting base, a seat cushion frame, a connecting frame, a backrest frame, and a first drive mechanism. The mounting base is used to mount the seat frame onto the vehicle floor. The seat cushion frame, mounted on the mounting base, is used for occupant seating, while the backrest frame is used for occupant comfort. The connecting frame, movably mounted on the mounting base, is used to mount the backrest frame. The specific principle of this solution is as follows: the first drive member in the first drive mechanism drives the first and second connecting rods to rotate around the mounting base in the same direction. The other ends of the first and second connecting rods are rotatably connected to the connecting frame. Driven by the first and second connecting rods, the connecting frame and backrest frame move from one side of the seat cushion frame to the opposite side, thus changing the seating orientation. In this invention, the movement of the backrest frame is driven by the first drive mechanism, making the entire seat reversal process highly automated and improving the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A frontal perspective view of an embodiment of the seat frame provided by the present invention; Figure 2 A three-dimensional rear view of an embodiment of the seat frame provided by the present invention; Figure 3 A side view of an embodiment of the seat frame provided by the present invention; Figure 4 This is a schematic diagram of the first drive mechanism in the aforementioned seat frame; Figure 5 This is a schematic diagram of the structure for mounting the base in the aforementioned seat frame; Figure 6 for Figure 4 A schematic diagram of the first drive mechanism mounted on the mounting base; Figure 7 This is a structural diagram of the seat cushion frame in the aforementioned seat frame; Figure 8 for Figure 7 A schematic diagram of the fourth link in the middle; Figure 9 for Figure 7A structural diagram of the middle seat cushion frame from another angle; Figure 10 This is a schematic diagram of the connecting frame in the aforementioned seat frame; Figure 11 This is a schematic diagram of the locking mechanism in the aforementioned seat frame; Figure 12 A schematic diagram of the backrest frame mounted on the mounting base; Figure 13 for Figure 12 A magnified view of a section at point A in the middle; Figure 14 This is a structural diagram of the backrest frame in the aforementioned seat frame; Figure 15 A diagram demonstrating the process of reversing the seat frame; Figure 16 This is a schematic diagram of the seat frame in the first seating position; Figure 17 This is a schematic diagram of the seat frame in the second seating position.

[0022] Explanation of icon numbers: 100. Seat frame; 1. Mounting base; 11. Slide rail; 12. Sliding seat; 13. First locking buckle; 14. Second locking buckle; 15. Bridge support; 2. Seat cushion frame; 21. Leg support frame; 22. Seat cushion side panel; 3. Connecting frame; 31. Extension; 31a. Abutment notch; 32. Snap-fit ​​part; 4. Backrest frame; 41. Backrest side panels; 42. Headrest frame; 43. Upper cross panel; 44. Lower cross panel; 5. First drive mechanism; 51. First drive component; 511. First motor; 512. Drive wheel; 513. Reducer; 52. First connecting rod; 521. First rod segment; 5211. First driven wheel; 522. Second rod segment; 523. Third rod segment; 52a. First limiting notch; 53. Second connecting rod; 531. Fourth rod segment; 5311. Second driven wheel; 532. Fifth rod segment; 533. Sixth rod segment; 53a. Second limiting notch; 6. Second drive mechanism; 61. Second drive component; 62. Third link; 63. Fourth link; 631. Main link section; 632. Bending section; 633. Tooth; 7. Locking mechanism; 71. Locking actuator; 72. Locking motor; 8. Third drive mechanism; 81. Third drive component; 82. Connecting shaft; 9. Fourth drive mechanism; 91. Fourth drive component. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of various embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in multiple embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] Furthermore, if the various embodiments of this invention involve descriptions such as "first" or "second," these descriptions 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 with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0026] In vehicle interiors, vehicle seats are an important component for driving and riding, and their user experience directly affects the overall driving and riding comfort and ease of use of the vehicle.

[0027] In related technologies, traditional vehicle seat frames are mostly integrated and fixed designs, with the relative orientation of the backrest and seat cushion fixed and limited. Only minor adjustments to the backrest angle are possible, and a complete change in seating direction is impossible, making it difficult to adapt to various usage scenarios. While some vehicle seats with reversing functions rely entirely on manual operation, requiring manual unlocking of the positioning structure, force application to push the seat frame to rotate it, and then manual locking, the process is cumbersome, physically demanding, and prone to positioning errors that cause seat wobbling. Furthermore, the structural design of these manually reversing seats is not compatible with automated drive components and cannot integrate with the vehicle's intelligent control system, resulting in a low level of intelligence. This makes it difficult to meet current user demands for automated, intelligent, and convenient use of vehicle interior components, and it also fails to align with the overall technological development trend of smart cockpits.

[0028] To address the aforementioned problems, the present invention proposes a seat frame 100 to solve or at least alleviate the technical problems mentioned above.

[0029] Please see Figure 1 As shown, unless otherwise specified, the front-back direction in this application refers to the length direction of the vehicle, which is the direction in which passengers face when riding in the vehicle; the left-right direction in this application refers to the width direction of the vehicle, which is the direction of the line connecting multiple seats in the same row; the up-down direction in this application refers to the height direction of the vehicle, which is the direction in which the backrest of the connected seats extends.

[0030] Please continue reading. Figure 1 and combined Figure 3 In one embodiment of this application, the seat frame 100 includes a mounting base 1, a seat cushion frame 2, a connecting frame 3, a backrest frame 4, and a first drive mechanism 5. The seat cushion frame 2 and the connecting frame 3 are disposed on the mounting base 1, and the backrest frame 4 is rotatably disposed on the connecting frame 3. The first drive mechanism 5 includes a first drive member 51, a first connecting rod 52, and a second connecting rod 53. The first drive member 51 is disposed on the mounting base 1. One end of the first connecting rod 52 is connected to the drive end of the first drive member 51, and the other end is rotatably connected to the connecting frame 3. One end of the second connecting rod 53 is connected to the drive end of the first drive member 51, and the other end is rotatably connected to the connecting frame 3. The connecting frame 3 is configured to move from one side of the seat cushion frame 2 to the opposite side of the seat cushion frame 2 under the drive of the first drive mechanism 5.

[0031] Understandably, the seat cushion frame 2 serves as the supporting base structure of the seat, used to bear the weight of the driver's and passengers' buttocks and legs, providing stable seating support. At the same time, as an installation carrier, it can integrate and install various functional components of the seat. Furthermore, it is connected to the mounting base 1, providing a fixed motion reference for the reversing motion of the connecting frame 3, and limiting the range of motion trajectory of the connecting frame 3.

[0032] Furthermore, the backrest frame 4, serving as a support structure for the back and head of the driver and passengers, rotates in conjunction with the connecting frame 3. It can adjust its rotation angle relative to the connecting frame 3 according to the user's needs, adapting to different seating postures and achieving flexible adjustment of the backrest angle to improve seating comfort. Simultaneously, the backrest frame 4 moves synchronously with the reversing motion of the connecting frame 3, completing the switch of seating orientation, allowing the seat to adapt to different usage scenarios and expanding its functionality.

[0033] Furthermore, the connecting frame 3 serves as the transmission connection structure between the backrest frame 4, the mounting base 1, and the first drive mechanism 5. On the one hand, it provides a carrier for the rotational installation of the backrest frame 4, enabling the angle adjustment function of the backrest frame 4. On the other hand, it cooperates with the linkage assembly of the first drive mechanism 5 to convert the driving force of the first drive component 51 into its own linear or directional motion, driving the backrest frame 4 from one side of the seat cushion frame 2 to the opposite side, completing the automatic switching of the seat's orientation. At the same time, the connecting frame 3, as a force transmission structure, can disperse the external force on the backrest frame 4 and transfer the load to the mounting base 1, improving the overall structural strength and stress stability of the seat frame 100.

[0034] Please continue reading. Figure 1 and combined Figure 15 This application achieves a change in the seating direction by movably mounting the connecting frame 3 on the mounting base 1 and, driven by the first drive mechanism 5, allowing the connecting frame 3 and the backrest frame 4 to move from one side of the seat cushion frame 2 to the opposite side. Specifically, the principle of this solution is as follows: the first drive member 51 in the first drive mechanism 5 drives the first connecting rod 52 and the second connecting rod 53 to rotate around the mounting base 1 in the same direction. The other ends of the first connecting rod 52 and the second connecting rod 53 are rotatably connected to the connecting frame 3. Driven by the first connecting rod 52 and the second connecting rod 53, the connecting frame 3 and the backrest frame 4 move from one side of the seat cushion frame 2 to the opposite side, thus changing the seating direction. In this invention, the movement of the backrest frame 4 is driven by the first drive mechanism 5, making the entire seat reversal process highly automated and improving the user experience.

[0035] It should be noted that this application does not limit the specific structure, shape, or arrangement of the first connecting rod 52 and the second connecting rod 53. For example, one end of the first connecting rod 52 and the second connecting rod 53 may be spaced apart on the mounting base 1 and arranged parallel to each other, while the other end may be connected to the connecting frame 3. Alternatively, the first connecting rod 52 and the second connecting rod 53 may be connected near the mounting base 1, then rotated and mounted on the mounting base 1, with the other end connected to the connecting frame 3, forming an overall Y-shape.

[0036] Please see Figure 4 and combined Figure 6 In one embodiment of this application, in order to further optimize the structural rationality when the drive connecting frame 3 and the backrest frame 4 are reversed, the first connecting rod 52 includes a first rod segment 521, a second rod segment 522 and a third rod segment 523 connected in sequence. The first rod segment 521 is set at an angle to the second rod segment 522 and the third rod segment 523 is set at an angle to the second rod segment 522. The first rod segment 521 is provided with a first driven wheel 5211, which meshes with the driving wheel 512.

[0037] Understandably, the angled three-segment structure enables spatial reversal and transmission of driving force. The first segment 521, through the meshing transmission between the first driven wheel 5211 and the driving wheel 512, converts the circumferential driving force output by the first driving member 51 into a linear force of the first segment 521. By utilizing the angled arrangement between the first segment 521 and the second segment 522, and between the second segment 522 and the third segment 523, the direction of force transmission can be changed, making the driving force adapt to the motion trajectory of the connecting frame 3. The driving force is smoothly transmitted to the end of the third segment 523, which is rotatably connected to the connecting frame 3, avoiding the lateral component force caused by the misalignment of the force transmission direction with the motion direction of the connecting frame 3. This effectively reduces force loss during transmission and improves driving efficiency.

[0038] Accordingly, the second link 53 includes a fourth link segment 531, a fifth link segment 532 and a sixth link segment 533 connected in sequence. The fourth link segment 531 is set at an angle to the fifth link segment 532, and the sixth link segment 533 is set at an angle to the fifth link segment 532. The fourth link segment 531 is provided with a second driven wheel 5311, which meshes with the driving wheel 512.

[0039] Specifically, through the spatial layout and structural design of the double connecting rods, the first connecting rod 52, the second connecting rod 53, the mounting base 1, and the connecting frame 3 together form a parallelogram-like transmission support structure. The specific principle is as follows: the third segment 523 of the first connecting rod 52 and the sixth segment 533 of the second connecting rod 53 are rotatably connected to the connecting frame 3 at different positions. The first segment 521 of the first connecting rod 52 and the fourth segment 531 of the second connecting rod 53 are meshed with the first driving member 51 and the drive wheel 512 on the mounting base 1. The spacing between the first connecting rod 52 and the second connecting rod 53 on the mounting base 1, the included angle of each segment, and the length of the segments are all calibrated and designed to ensure that the double connecting rods maintain motion synchronization and positional parallelism during transmission.

[0040] When the driving wheel 512 of the first driving member 51 rotates, it synchronously drives the first driven wheel 5211 and the second driven wheel 5311 to rotate, thereby causing the first connecting rod 52 and the second connecting rod 53 to perform synchronous swinging motion, so that the line formed by the connection point of the double connecting rods with the connecting frame 3 and the mounting base 1 always remains parallel. Based on the characteristics of this mechanism, when the backrest frame 4 moves to any position with the connecting frame 3, including the intermediate transition position during the reversal process, the first connecting rod 52 and the second connecting rod 53 can provide synchronous bidirectional support and force transmission to the connecting frame 3 from different positions. The spaced arrangement of the double connecting rods allows the support force to act on different stress points of the connecting frame 3, forming a multi-point stable support structure and avoiding the problem of uneven load caused by single connecting rod support. When the backrest frame 4 is in the middle position during the reversing process, the supporting forces of the first link 52 and the second link 53 can cancel each other out the lateral component force, retaining only the driving force along the reversing direction and the supporting force in the vertical direction, providing reliable vertical support for the backrest frame 4, effectively preventing the backrest frame 4 from shaking or tilting due to the lack of effective support in the middle position of the reversing, and improving the structural stability and smoothness of movement of the seat frame 100 during the reversing process.

[0041] Please see Figure 6 In some embodiments, to ensure that the power output of the first driving member 51 meets the motion speed requirements of the first link 52 and the second link 53, the first driving member 51 includes a first motor 511 and a reducer 513. The input end of the reducer 513 is connected to the power output shaft of the first motor 511, and the output end of the reducer 513 forms the driving end of the first driving member 51 and is equipped with a drive wheel 512. In this way, through the coordinated cooperation of the motor and the reducer 513, stable power output and speed regulation can be achieved.

[0042] It should be noted that the first driving component 51 can be a servo motor or a pneumatic motor, and this application does not limit its specific type.

[0043] Please continue reading. Figure 3 and combined Figure 4 To ensure that the seat frame 100 can constrain the connecting frame 3 and the backrest frame 4 after the reversing position, preventing them from exceeding their travel range, in some embodiments, the connecting frame 3 is provided with a snap-fit ​​part 32. Correspondingly, the second rod segment 522 is provided with a first limiting notch 52a, which is located near the second connecting rod 53; the fifth rod segment 532 is provided with a second limiting notch 53a, which is located near the first connecting rod 52. The first limiting notch 52a and the second limiting notch 53a are oriented towards each other.

[0044] Specifically, the opening position and size of the first limiting notch 52a and the second limiting notch 53a are matched with the snap-fit ​​part 32 of the connecting frame 3, and their opening positions correspond to the reversing position of the connecting frame 3 in the first and second seating states of the seat frame 100.

[0045] In the first seating state, the connecting frame 3 moves with the first drive mechanism 5 to a preset position on one side of the seat frame 2. At this time, the locking part 32 of the connecting frame 3 engages with the first limiting notch 52a of the second segment 522 of the first connecting rod 52. The circumferential sidewall of the first limiting notch 52a reliably limits the locking part 32, restricting the retraction displacement and lateral offset of the connecting frame 3 in the reversing direction. In the second seating state, the connecting frame 3 moves with the first drive mechanism 5 to a preset position on the opposite side of the seat frame 2. The locking part 32 of the connecting frame 3 engages with the second limiting notch 53a of the fifth segment 532 of the second connecting rod 53. The sidewall structure of the second limiting notch 53a provides a reverse limiting constraint to the locking part 32, preventing the connecting frame 3 from moving towards the initial side.

[0046] It is understandable that after the snap-fit ​​part 32 engages with the corresponding first limiting notch 52a or second limiting notch 53a, the two form a rigid fitting structure. At this time, the vertical load and lateral force borne by the connecting frame 3 can be transmitted through the snap-fit ​​part 32 to the first connecting rod 52 or the second connecting rod 53, and then transmitted to the mounting base 1 through the connecting rod, thereby realizing the distributed transmission of load and optimizing the support stability and structural rigidity of the seat frame 100 in the in-position state.

[0047] To accommodate different seating orientations when the vehicle seats are rotated forward or backward, the seat cushion angle is adjusted to create an ergonomic support angle for the legs and hips of the driver and passengers, improving driving and riding comfort in different seating positions.

[0048] Please see Figure 7 and combined Figure 9 In some embodiments of this application, the seat cushion frame 2 is an adjustable structure. Specifically, the seat frame 100 further includes a second drive mechanism 6, which includes a second drive member 61, a third connecting rod 62, and a fourth connecting rod 63. The second drive member 61 is disposed on the seat cushion frame 2. One end of the third connecting rod 62 is rotatably connected to the mounting base 1, and the other end is rotatably connected to the seat cushion frame 2. One end of the fourth connecting rod 63 is rotatably connected to the mounting base 1, and the other end is rotatably connected to the seat cushion frame 2 and driven by the second drive member 61.

[0049] Understandably, the third link 62 is a follower link, which only performs adaptive swinging motion according to the posture changes of the seat cushion frame 2, providing stable support and motion guidance for the seat cushion frame 2. It limits the seat cushion frame 2 to swinging at a fixed angle around the hinge point with the mounting base 1, preventing lateral displacement or misalignment of the seat cushion frame 2 during adjustment. The fourth link 63 is an active transmission link, which is driven by the drive end of the second drive member 61. It can convert the power output by the second drive member 61 into its own swinging motion around the hinge point with the mounting base 1. When the second drive member 61 drives the fourth link 63 to swing, the end of the fourth link 63 away from the mounting base 1 will push or pull the corresponding position of the seat cushion frame 2 to produce displacement, causing the seat cushion frame 2 to deflect around the hinge point with the third link 62.

[0050] It should be noted that the staggered hinged arrangement of the third link 62 and the fourth link 63 allows them to form dual-point support from different positions of the seat cushion frame 2, providing stable mechanical support for the seat cushion frame 2 during tilt adjustment, ensuring that the seat cushion frame 2 has good structural stability at any tilt position, without the risk of wobbling or tipping over.

[0051] Please refer to further information. Figure 8 The fourth link 63 adopts a structural design in which the main link segment 631 and the bent segment 632 are connected at an angle. Power transmission is achieved through the meshing of the teeth 633 provided on the bent segment 632 with the gear at the drive end of the second drive member 61. Specifically, the end of the main link segment 631 away from the bent segment 632 forms a rotational hinge with the mounting base 1, which constitutes the fixed fulcrum for the swing motion of the fourth link 63. The side of the bent segment 632 away from the main link segment 631 is provided with teeth 633. The tooth profile and tooth pitch of the teeth 633 are adapted to the gear at the drive end of the second drive member 61, so that the meshing pair of the gear and the teeth 633 forms a transmission relationship. When the second drive unit 61 receives the tilt angle adjustment command, its drive end outputs circumferential rotational power and drives the gear to rotate synchronously. The gear and the teeth 633 of the bending section 632 form a meshing transmission, converting the circumferential rotational motion of the gear into the linear motion of the bending section 632. Since the main rod section 631 of the fourth link 63 is rotatably hinged to the mounting base 1, the linear force on the bending section 632 will be converted into a swing torque around the hinge point of the main rod section 631 and the mounting base 1, driving the fourth link 63 as a whole to make a fixed-axis swing motion around the hinge point, thereby causing the seat frame 2 to change its tilt direction.

[0052] It should be noted that the second driving component 61 can be a servo motor, stepper motor, pneumatic motor, etc., and this application does not impose any restrictions on it.

[0053] Please continue reading. Figure 9It should be noted that one or two second driving components 61 can be provided, and this application does not limit this. In one embodiment of this application, only one second driving component 61 is provided, that is, the second driving component 61 is only provided on the inner side of one side of the seat cushion side plate 22. A single second driving component 61 can provide sufficient driving force to the fourth link 63. Through the meshing transmission of gears and teeth 633, the fourth link 63 is driven to rotate. With the follow-up support of the third link 62, the tilt angle of the seat cushion frame 2 can be smoothly adjusted. Its power output can fully match the load requirements of the tilt angle adjustment of the seat cushion frame 2, and the stable realization of the adjustment function can be guaranteed without adding an additional driving component.

[0054] Understandably, the single-drive design significantly reduces the number of components in the drive mechanism, simplifies the overall structural layout of the second drive mechanism 6, lowers the manufacturing cost and assembly complexity of the seat frame 100, and reduces component wear and maintenance difficulty in later stages. Positioning it inside the single-sided seat cushion side panel 22 fully utilizes the unused inner space of the seat cushion frame 2, effectively avoids other functional components of the seat frame 100, prevents structural interference with the first drive mechanism 5, locking mechanism 7, etc., improves the utilization rate of the internal space of the seat frame 100, and achieves a compact overall structural design.

[0055] Please see Figure 11 To ensure rigid locking and fixation between the connecting frame 3 and the mounting base 1 when the seat frame 100 is in the first and second seating positions, preventing displacement or shaking of the connecting frame 3 and the backrest frame 4 during driving or riding, the seat frame 100 also includes a locking mechanism 7. The locking mechanism 7 is located on the connecting frame 3. See [link to relevant documentation] for details. Figure 5 The mounting base 1 has a first latch 13 and a second latch 14 at both ends along the length of the seat frame 2. In the first riding state, the locking mechanism 7 is locked with the first latch 13; in the second riding state, the locking mechanism 7 is locked with the second latch 14.

[0056] Please see Figure 12 and combined Figure 13 Specifically, the locking mechanism 7 operates on the following principle: the locking motor 72 is connected to the locking actuator 71, and the locking motor 72 is located on the backrest frame 4, while the locking actuator 71 is integrated into the connecting frame 3. The locking mechanism 7 is positioned to match the first latch 13 and the second latch 14 on the mounting base 1. The first latch 13 and the second latch 14 are located at both ends of the mounting base 1 along the length of the seat cushion frame 2, and their positions correspond to the reversing positions of the connecting frame 3 in the first and second seating states of the seat frame 100.

[0057] When the seat frame 100 is in the first seating position, the locking mechanism 7 receives a position signal, the locking motor 72 starts and outputs rotational power, driving the locking actuator 71 to perform the locking action of the locking tongue, so that the locking actuator 71 and the first latch 13 on the mounting base 1 form a rigid engagement, snap-fit ​​or buckle, realizing the precise locking of the locking mechanism 7 and the first latch 13, thereby fixing the connecting frame 3 and the mounting base 1 together at this position; when the seat frame 100 completes the reversal, and the connecting frame 3 drives the backrest frame 4 to move to the opposite side of the seat cushion frame 2 and form the second seating position, the locking mechanism 7 receives a position signal again, the locking motor 72 starts in reverse and outputs power, driving the locking actuator 71 to perform the reverse action, releasing the locking engagement with the first latch 13, and forming a rigid lock with the second latch 14 on the mounting base 1, completing the fixation of the connecting frame 3 and the mounting base 1 in the second seating position.

[0058] Please see Figure 10 and combined Figure 11 In one embodiment, in order to install the locking actuator 71, the connecting frame 3 is provided with an extension 31 facing downward, that is, towards the mounting base 1. The extension 31 has mounting holes to enable the detachable installation of the locking actuator 71. The locking actuator 71 can be installed by means of screwing, snap-fitting, etc., and this application does not limit this.

[0059] Please continue reading. Figure 10 In some embodiments, to achieve the positioning of the connecting frame 3 with the first latch 13 or the second latch 14, the lower end of the connecting frame 3 is provided with an abutment notch 31a. The inner sidewall of the abutment notch 31a forms a guide surface, which can form a snap-fit ​​guide for the first latch 13 or the second latch 14, constrain the movement trajectory of the connecting frame 3, and make the connecting frame 3 move accurately along the preset path to the position of the first riding state or the second riding state, avoiding hard collisions and positional deviations between the connecting frame 3 and the latch, ensuring the positional accuracy of the connecting frame 3 in the reversal position, and providing a pre-positioning guarantee for the accurate locking of the locking mechanism 7 and the corresponding latch.

[0060] Please see Figure 1 and combined Figure 5To achieve fore-and-aft adjustability of the seat frame 100 to meet the riding needs of users of different body sizes, the mounting base 1 includes a slide rail 11 and a sliding seat 12. The sliding seat 12 is slidably mounted on the slide rail 11. The first drive member 51, the first connecting rod 52, and the second connecting rod 53 are mounted on the sliding seat 12, and the seat cushion frame 2 is mounted on the sliding seat 12. The slide rail 11 extends along the fore-and-aft direction of the vehicle and serves as a displacement guide structure for the seat frame 100. The sliding seat 12 is adapted to and slidably connected to the slide rail 11, allowing the sliding seat 12 to make smooth linear reciprocating motion along the extension direction of the slide rail 11. The first drive member 51, the first connecting rod 52, and the second connecting rod 53 of the first drive mechanism 5 are all located on the sliding seat 12. The seat frame 2 is rotatably mounted on the sliding seat 12 via the third connecting rod 62 and the fourth connecting rod 63. The first latch 13 and the second latch 14 on the mounting base 1 are also correspondingly located on the sliding seat 12, so that the core functional components of the seat frame 100 form an integrated structural unit with the sliding seat 12 as the carrier.

[0061] This integrated structural unit can move synchronously along the slide rail 11 with the sliding seat 12, realizing the overall position adjustment of the seat frame 2, connecting frame 3, and backrest frame 4 in the vehicle's front-to-back direction. This ensures that components such as the first drive mechanism 5 and locking mechanism 7 maintain stable transmission and working performance after the seat frame 100 is positioned. The sliding engagement between the slide rail 11 and the sliding seat 12 restricts the seat frame 100 to only move in a linear direction along a preset front-to-back direction, avoiding lateral offset and jamming during adjustment, and ensuring the smoothness and accuracy of position adjustment.

[0062] Specifically, the sliding seat 12 is driven by the third drive mechanism 8, and the two sliding seats 12 are connected by the bridge bracket 15 to ensure that the movement speed of the two sliding seats 12 is completely consistent. The third drive mechanism 8 includes a third drive component 81 and a connecting shaft 82. The third drive component 81 can be a servo motor, a stepper motor, etc., and this application does not limit it. The third drive component 81 is mounted on the bridge bracket 15, and the connecting shaft 82 is mounted on the drive end of the third drive component 81 and is used to transmit the torque output by the third drive component 81. The other end of the connecting shaft 82 is connected to the sliding seat 12.

[0063] As an example, the output end of the connecting shaft 82 is provided with a gear, which is rotatably mounted on the sliding seat 12 and maintains the same movement as the sliding seat 12. The slide rail 11 is provided with a rack inside, and the gear at the end of the connecting shaft 82 meshes with the rack. When the third driving member 81 outputs power, the connecting shaft 82 rotates accordingly and drives the gear to rotate. The gear meshes with the rack, thereby driving the sliding seat 12 to move on the slide rail 11.

[0064] Understandably, this is to ensure that the seat cushion frame 2 and backrest frame 4 can still be locked by the first latch 13 or the second latch 14 even if their front-to-back positions change. Both the first latch 13 and the second latch 14 are located on the sliding seat 12 and move in the same direction as the sliding seat 12. This synchronized movement allows the first latch 13, the second latch 14, and core components such as the seat cushion frame 2 and the first drive mechanism 5 on the sliding seat 12 to work together. The front-to-back position adjustment, seating direction reversal, and locking functions of the seat frame 100 are independent yet work together without interference. The implementation of each function is unaffected by the actions of other functions, improving the overall functional coordination and smoothness of the seat frame 100.

[0065] Please see Figure 14 In one embodiment of this application, since the tilting direction of the backrest frame 4 is opposite in the first and second sitting states of the seat frame 100, in order to adjust the tilt angle of the backrest frame 4, the seat frame 100 further includes a fourth drive mechanism 9. The fourth drive mechanism 9 includes a fourth drive member 91, which is disposed on the backrest frame 4 and is used to drive the backrest frame 4 to rotate relative to the connecting frame 3.

[0066] Specifically, the fourth drive component 91 is mounted on the backrest frame 4, and its power output end is connected to the rotating joint of the backrest frame 4 and the connecting frame 3. The backrest frame 4 and the connecting frame 3 are hinged together, forming a relatively rotatable connection structure, and the hinge point is the fixed axis fulcrum for adjusting the angle of the backrest frame 4. When a backrest angle adjustment command is received, the fourth drive component 91 starts and outputs power, directly transmitting the power to the rotating joint of the backrest frame 4 and the connecting frame 3. Through power drive, the backrest frame 4 rotates relative to the connecting frame 3 around the hinge point, thereby achieving flexible adjustment of the tilt angle of the backrest frame 4.

[0067] Understandably, this arrangement fully utilizes the internal installation space of the backrest frame 4, adapts to the overall structure of the backrest frame 4, and achieves an integrated design of the drive mechanism without occupying additional external space of the seat frame 100, ensuring the compactness of the overall structure of the seat frame 100. The swing motion of the backrest frame 4 with the hinge point as the fixed axis makes the motion trajectory of the angle adjustment process more precise, enabling stepless adjustment of the backrest frame 4's tilt angle to adapt to the sitting habits and riding needs of different drivers and passengers, thereby improving driving and riding comfort.

[0068] As an example, when the seat is in the first seating position, the backrest frame 4, under the power support of the fourth drive component 91, maintains a preset tilt angle that matches the seating posture of the driver and passenger. At this time, the fourth drive component 91 is in a power pressure holding state, providing stable support torque for the backrest frame 4 and preventing the backrest frame 4 from shifting angle after being loaded.

[0069] When the first drive mechanism 5 starts and drives the connecting frame 3 to move the backrest frame 4 from one side of the seat cushion frame 2 to the opposite side, entering the transition stage from the first seating state to the second seating state, the fourth drive component 91 receives the linkage control signal and starts, outputting rotational power to drive the backrest frame 4 to make a reverse swinging motion relative to the connecting frame 3, so that the tilt angle of the backrest frame 4 gradually returns to the initial upright state. This adjustment of the upright angle can effectively avoid interference between the backrest frame 4 and the vehicle interior, seat cushion frame 2 and other surrounding structures during the reversal process, ensuring the smooth reversal action. Moreover, the swinging drive rate of the fourth drive component 91 is matched with the reversal motion rate of the connecting frame 3, realizing the synchronous coordination of the two actions.

[0070] When the connecting frame 3 drives the backrest frame 4 to change direction and form the second seating state, after the locking mechanism 7 and the second latch 14 complete the rigid locking, the fourth drive component 91 receives the angle adjustment signal again. According to the driving and riding requirements of the second seating state, it outputs power to drive the backrest frame 4 to make a forward swinging motion with the hinge point with the connecting frame 3 as the center, until the backrest frame 4 is adjusted to the preset tilt angle that conforms to ergonomics in the second seating state. Then, the fourth drive component 91 enters the power holding state again, providing continuous and stable support torque to the backrest frame 4, so that the backrest frame 4 maintains the preset angle, effectively bearing the back load of the driver and passenger, and avoiding problems such as the backrest frame 4 swinging back or shaking on its own.

[0071] Please see Figure 7 and combined Figure 9 To enable bidirectional seating, the seat frame 2 includes two leg support frames 21 and two seat side panels 22. The two leg support frames 21 are spaced apart along the length of the seat frame 2, and each seat side panel 22 is connected to the two leg support frames 21 and located on the same side of the two leg support frames 21. The seat cushion frame 2 adopts a symmetrical structural design of two leg support frames 21 and two seat cushion side plates 22. It is arranged symmetrically along its own length. The two leg support frames 21 are arranged parallel to each other along the length of the seat cushion frame 2, serving as the main support structure for the legs of the driver and passenger. They correspond to the leg support needs of the driver and passenger in the first and second seating states, respectively. The two seat cushion side plates 22 are respectively connected to the same side end of the two leg support frames 21, fixing the two leg support frames 21 into an integrated rigid support frame. This makes the seat cushion frame 2 form a symmetrical structure along the length direction and an enclosing structure along the width direction. This integrated frame provides the mounting base 1 and structural support for the seat cushion filling, which can effectively bear the load of the driver and passenger's buttocks and legs and evenly distribute the load to the mounting base 1, ensuring the support stability of the seat cushion frame 2.

[0072] Understandably, the symmetrical structural design ensures that the force distribution and load transmission path of the seat cushion frame 2 are completely consistent in both directions of seating, eliminating the need for structural adjustments for different seating conditions. This creates excellent functional synergy with the reversing motion of the connecting frame 3, guaranteeing the overall structural design uniformity and operational coordination of the seat frame 100. Furthermore, the interchangeability of components in the symmetrical structure reduces the complexity of manufacturing and assembly.

[0073] It should be noted that the leg support frame 21 in the seat cushion frame 2 of this application can be adjustable to adapt to the leg support needs of different users and improve riding comfort; it can also be fixed to ensure structural stability and reliable load-bearing capacity. This application does not limit this, and in this embodiment, the leg support frame 21 is a fixed structure.

[0074] Please see Figure 14 The backrest frame 4 adopts a split assembly structure in which two backrest side panels 41 and headrest frame 42 cooperate. The two backrest side panels 41 are spaced apart along the width of the seat and gradually expand from top to bottom, forming the vertical support body of the backrest frame 4. The headrest frame 42 is mounted on the top of the two backrest side panels 41 and is fixedly connected to them, so that the backrest frame 4 forms an overall rigid frame structure that runs through the top and bottom and surrounds the sides. The lower end of each backrest side panel 41 away from the headrest frame 42 is connected to a connecting frame 3 to form a rotating hinge, realizing the relative rotatable connection between the backrest frame 4 and the connecting frame 3.

[0075] Understandably, the two backrest side panels 41, as load-bearing components of the backrest frame 4, can effectively bear the back load of the driver and passengers and transfer the load vertically downward to the connecting frame 3, and then distribute it to the mounting base 1 through the connecting frame 3, ensuring the support stability and load transmission rationality of the backrest frame 4; the headrest frame 42 is connected to the top of the two backrest side panels 41, which not only provides reliable support for the head of the driver and passengers, improving the comfort and safety of the ride, but also forms a lateral limit and structural reinforcement for the top of the two backrest side panels 41, preventing the two backrest side panels 41 from opening laterally or deforming after being loaded, and strengthening the overall structural rigidity and deformation resistance of the backrest frame 4.

[0076] Specifically, the rotating hinge design of the lower end of each backrest side panel 41 to the corresponding connecting frame 3 allows the backrest frame 4 to swing relative to the connecting frame 3 around the hinge point as a fixed axis. This provides a structural basis for the angle adjustment of the backrest frame 4. Combined with the power drive of the fourth drive mechanism 9, the tilt angle of the backrest frame 4 can be flexibly adjusted to adapt to the sitting posture habits of different drivers and passengers. Moreover, the two backrest side panels 41 each form a rotating engagement with a connecting frame 3, so that both sides of the backrest frame 4 form stable rotational support, avoiding the problem of uneven load caused by unilateral hinges, ensuring the posture stability of the backrest frame 4 during angle adjustment and at different tilt angles, and preventing phenomena such as shaking and jamming.

[0077] Please continue reading. Figure 14 The headrest frame 42 can be an integral structure with the backrest side panel 41, or it can be an independent detachable structure; this application does not limit this. An integral structure creates a rigid overall frame for the backrest frame 41, significantly improving structural strength and resistance to deformation, ensuring the stability and reliability of the headrest support. An independent detachable structure allows for flexible assembly and disassembly of the headrest frame 42, facilitating later maintenance, replacement, and adaptation to different specifications of the headrest frame 42 according to user needs, improving the adaptability and flexibility of the seat. This application does not limit either structural form; both can meet the usage requirements of the seat.

[0078] like Figure 14 As shown, in some embodiments, the backrest frame 4 further includes an upper horizontal plate 43 and a lower horizontal plate 44. The upper horizontal plate 43 is connected to two backrest side plates 41 respectively, and the lower horizontal plate 44 is connected to two backrest side plates 41 respectively. The upper horizontal plate 43 and the lower horizontal plate 44 are arranged at intervals along the vertical direction.

[0079] Specifically, the upper horizontal plate 43 connects to the upper area of ​​the two backrest side plates 41, and the lower horizontal plate 44 connects to the lower area of ​​the two backrest side plates 41. The two form a double-layered lateral connection support, which can effectively constrain the relative displacement of the two backrest side plates 41, prevent the backrest side plates 41 from being laterally opened, vertically bent, or torsional deformed by the squeezing and impact forces of the back of the driver and passengers, greatly improve the overall structural rigidity and deformation resistance of the backrest frame 4, and ensure the structural stability of the backrest frame 4 after long-term support. The horizontal plates arranged at intervals divide the load-bearing area between the two backrest side plates 41 into layers, so that the back load of the driver and passengers acting on the backrest frame 4 can be quickly transferred to the backrest side plates 41 on both sides through the upper horizontal plate 43 and the lower horizontal plate 44, so as to achieve uniform distribution of load on the backrest frame 4 as a whole, avoid stress concentration at local positions of the backrest side plates 41, and extend the service life of the backrest frame 4.

[0080] Furthermore, the addition of the upper horizontal plate 43 and the lower horizontal plate 44 creates a regular frame structure for the backrest frame 4, providing a uniform support base for the backrest filling. This results in a higher degree of fit between the filling and the backrest frame 4, preventing localized collapse of the filling and optimizing the backrest comfort for passengers. This frame structure design also complements the symmetrical layout of the backrest frame 4. When the seat is rotated to different seating positions, the backrest frame 4 maintains consistent load-bearing capacity and structural stability, with no weak points on one side.

[0081] This application also proposes a vehicle seat, which includes a seat cushion filling, a backrest filling, a seat cushion cover, a backrest cover, and a seat frame 100 as described above. The seat cushion frame 2 is at least partially embedded in the seat cushion filling, the backrest frame 4 is at least partially embedded in the backrest filling, the seat cushion cover covers the seat cushion frame 2 and the seat cushion filling, and the backrest cover covers the backrest frame 4 and the backrest filling. The specific structure of the seat frame 100 is as described in the above embodiments. Since this vehicle seat adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0082] Understandably, the seat cushion frame 2 is at least partially embedded inside the seat cushion filling, and the backrest frame 4 is at least partially embedded inside the backrest filling, so that the rigid seat frame 100 and the flexible filling structure form a fitting connection. The seat frame 100 provides a shaping support base for the filling, preventing the filling from collapsing or deforming excessively after being loaded, and ensuring the overall support shape and structural stability of the vehicle seat. The filling covers the fitting part of the seat frame 100, realizing the combination of rigid support and flexible buffering, effectively reducing vibration and impact during driving and riding, and improving the comfort of riding.

[0083] It should be noted that the seat cushion filling and backrest filling can be made of polyurethane foam sponge or memory foam, and this application does not impose any restrictions on this.

[0084] The seat cushion cover completely covers the outside of the seat cushion frame 2 and the seat cushion filling, while the backrest cover completely covers the outside of the backrest frame 4 and the backrest filling, forming a full-dimensional protective covering for the internal structure of the seat. The cover can not only constrain and shape the seat cushion filling and backrest filling to prevent the filling from loosening or shifting, but also isolate external dust, water stains and other impurities from contacting the internal frame and filling, improving the vehicle seat's dirt resistance and service life. At the same time, the outer surface of the cover is the direct contact surface for drivers and passengers, and different materials and textures of fabric can be selected according to usage needs to optimize the tactile experience of driving and riding.

[0085] It should be noted that the seat cushion cover and backrest cover can be made of genuine leather, fabric, or suede; this application does not impose any restrictions on these materials.

[0086] Understandably, the assembly form of each component is compatible with the structure and function of the seat frame 100. The seat frame 100's functions, such as bidirectional reversing, tilt adjustment, backrest angle adjustment, and fore-and-aft position adjustment, can drive the fitted filling material and covering material to move synchronously. There is no movement interference between the components, ensuring the smooth implementation of various adjustment functions of the vehicle seat. Furthermore, the fitted arrangement of the seat cushion frame 2 and backrest frame 4 allows the force on the filling material to be evenly transmitted to the frame body, and then distributed to the mounting base 1 through the frame, achieving reasonable load transmission and avoiding damage and aging of the filling material caused by local stress concentration. In addition, this integrated structural design makes the assembly of each component of the vehicle seat compact and the overall structure regular. It retains the structural rigidity and functional diversity of the seat frame 100, while improving comfort and protection through the filling and covering structure. At the same time, each component is modularly designed, which facilitates production assembly and subsequent maintenance and replacement. It can flexibly adapt to different specifications of filling material and covering material according to actual usage needs, improving the adaptability and production economy of the vehicle seat.

[0087] Please see Figure 16 and combined Figure 17 This application also proposes a vehicle that includes the vehicle seats described above.

[0088] It should be noted that this vehicle can adopt a 2+3 or 2+2 seating layout, that is, a total of two rows of seats, with two seats in the first row and two or three seats in the second row. In this embodiment, the first row seats can be switched to a face-to-face seating mode with the second row seats. This allows for face-to-face interaction between the driver and passengers and the rear passengers in scenarios such as temporary parking or stationary use, improving the interactivity and flexibility of the interior space and meeting the needs of short-term communication and business meetings within the vehicle.

[0089] In another embodiment, the vehicle can adopt a 2+2+3 seating layout, that is, a total of three rows of seats: two seats in the first row, two seats in the second row, and three seats in the third row. In this embodiment, the second-row seats can be switched to face the third-row seats, which can adapt to usage scenarios such as long-distance driving and parking for rest. Second-row passengers can trigger the seat reversal according to their own needs, so that the second-row seats are arranged opposite to the third-row seats, which facilitates interaction and communication among rear passengers. Alternatively, the second-row seats can be switched to face the opposite direction of the vehicle's travel direction, forming a temporary in-vehicle rest and storage space in conjunction with the vehicle's interior storage structure, thus optimizing the rear passenger experience.

[0090] In this embodiment, the third-row seats can also be reversed. When the vehicle is parked and the trunk is opened to enter camping mode, the third-row seats can be reversed so that the seating orientation of the third-row seats is consistent with the direction of the trunk opening, forming an open seating space that connects the interior and the outdoors. This can meet the diverse needs of users for outdoor activities such as sightseeing, fishing, and camping, making full use of vehicle space and expanding the vehicle's outdoor functions, thereby improving the scene adaptability and practicality of the vehicle seats.

[0091] In another embodiment, the vehicle adopts a 2+3+2 seating layout, that is, a total of three rows of seats: the first row has 2 seats, the second row has 3 seats, and the third row has 2 seats. For the specific type of seating arrangement, please refer to the aforementioned 2+2+3 seating layout embodiment, which will not be repeated here.

[0092] It is understandable that multiple seats in the same row can be switched individually or simultaneously, depending on the user's needs.

[0093] It should be noted that the vehicle mentioned in this application can be a gasoline-powered vehicle, a pure electric vehicle, or a hybrid vehicle; this application does not impose any restrictions on this.

[0094] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A seat frame, characterized in that, include: Mounting base (1); A seat frame (2) is provided on the mounting base (1); The connecting frame (3) is movably mounted on the mounting base (1) and located on one side of the cushion frame (2); Backrest frame (4), rotatably mounted on the connecting frame (3); The seat frame further includes a first drive mechanism (5), which includes a first drive member (51), a first connecting rod (52), and a second connecting rod (53). The first drive member (51) is disposed on the mounting base (1). One end of the first connecting rod (52) is connected to the drive end of the first drive member (51), and the other end is rotatably connected to the connecting frame (3). One end of the second connecting rod (53) is connected to the drive end of the first drive member (51), and the other end is rotatably connected to the connecting frame (3). The connecting frame (3) is configured to move from one side of the seat cushion frame (2) to the opposite side of the seat cushion frame (2) under the drive of the first drive mechanism (5).

2. The seat frame as described in claim 1, characterized in that, The first driving member (51) has a driving wheel (512) at its driving end; The first connecting rod (52) includes a first rod segment (521), a second rod segment (522), and a third rod segment (523) connected in sequence. The first rod segment (521) is angled to the second rod segment (522), and the third rod segment (523) is angled to the second rod segment (522). The first rod segment (521) is provided with a first driven wheel (5211), which meshes with the driving wheel (512); and / or The second connecting rod (53) includes a fourth rod segment (531), a fifth rod segment (532) and a sixth rod segment (533) connected in sequence. The fourth rod segment (531) is set at an angle to the fifth rod segment (532), and the sixth rod segment (533) is set at an angle to the fifth rod segment (532). The fourth rod segment (531) is provided with a second driven wheel (5311), which meshes with the driving wheel (512).

3. The seat frame as described in claim 2, characterized in that, The connecting frame (3) is provided with a snap-fit ​​part (32); the second rod segment (522) is provided with a first limiting notch (52a), which is located near the second connecting rod (53); the fifth rod segment (532) is provided with a second limiting notch (53a), which is located near the first connecting rod (52); The seat frame has a first seating state and a second seating state. In the first seating state, the locking part (32) is locked with the first limiting notch (52a); in the second seating state, the locking part (32) is locked with the second limiting notch (53a).

4. The seat frame as described in any one of claims 1 to 3, characterized in that, The seat frame also includes a second drive mechanism (6), which includes a second drive member (61), a third link (62) and a fourth link (63). The second drive member (61) is disposed on the seat cushion frame (2). One end of the third link (62) is rotatably connected to the mounting base (1) and the other end is rotatably connected to the seat cushion frame (2). One end of the fourth link (63) is rotatably connected to the mounting base (1), and the other end is rotatably connected to the seat frame (2) and driven by the second drive member (61).

5. The seat frame as described in claim 4, characterized in that, The fourth link (63) includes a main rod section (631) and a bent section (632) connected to each other. The main rod section (631) and the bent section (632) are set at an angle. The main rod section (631) is rotatably connected to the mounting base (1). The bent section (632) is provided with teeth (633). The driving end of the second driving member (61) is provided with a gear, and the gear meshes with the teeth (633).

6. The seat frame as described in any one of claims 1 to 3, characterized in that, The seat frame also includes a locking mechanism (7), which is located on the connecting frame (3). The mounting base (1) is provided with a first buckle (13) and a second buckle (14) at both ends along the length of the seat frame (2). The seat frame has a first seating state and a second seating state. In the first seating state, the locking mechanism (7) is locked with the first latch (13); in the second seating state, the locking mechanism (7) is locked with the second latch (14).

7. The seat frame as described in claim 6, characterized in that, The connecting frame (3) has an extension (31) facing downwards, and the locking mechanism (7) is provided on the extension (31). The extension (31) has an abutment notch (31a). In the first riding state, the abutment notch (31a) abuts against the first buckle (13); in the second state, the abutment notch (31a) abuts against the second buckle (14).

8. The seat frame as described in claim 6, characterized in that, The mounting base (1) includes a slide rail (11) and a sliding seat (12). The sliding seat (12) is slidably disposed on the slide rail (11). The first driving member (51), the first connecting rod (52), and the second connecting rod (53) are disposed on the sliding seat (12). The seat frame (2) is disposed on the sliding seat (12). The first latch (13) and the second latch (14) are disposed on the sliding seat (12).

9. The seat frame as described in claim 8, characterized in that, The mounting base (1) further includes a third driving mechanism (8), which includes a third driving member (81) and a connecting shaft (82). The third driving member (81) is disposed between the two sliding seats (12), and the connecting shaft (82) is connected to the driving end of the third driving member (81). The connecting shaft (82) is connected to the sliding seat (12) in a transmission connection.

10. The seat frame as described in any one of claims 1 to 3, characterized in that, The seat frame also includes a fourth drive mechanism (9), which includes a fourth drive member (91). The fourth drive member (91) is disposed on the backrest frame (4) and is used to drive the backrest frame (4) to rotate relative to the connecting frame (3).

11. The seat frame as described in any one of claims 1 to 3, characterized in that, The seat frame (2) includes two leg support frames (21) and two seat side plates (22). The two leg support frames (21) are spaced apart along the length of the seat frame (2). Each seat side plate (22) is connected to the two leg support frames (21) and is located on the same side of the two leg support frames (21).

12. The seat frame as described in any one of claims 1 to 3, characterized in that, The backrest frame (4) includes two backrest side panels (41) and a headrest frame (42). The headrest frame (42) is connected to the two backrest side panels (41), and the end of each backrest side panel (41) away from the headrest frame (42) is rotatably connected to a connecting frame (3).

13. The seat frame as described in claim 12, characterized in that, The backrest frame (4) also includes an upper horizontal plate (43) and a lower horizontal plate (44). The upper horizontal plate (43) is connected to the two backrest side plates (41) respectively, and the lower horizontal plate (44) is connected to the two backrest side plates (41) respectively. The upper horizontal plate (43) and the lower horizontal plate (44) are arranged at intervals along the vertical direction.

14. A vehicle seat, characterized in that, The seat includes a seat cushion filling, a backrest filling, a seat cushion cover, a backrest cover, and a seat frame as claimed in any one of claims 1 to 13, wherein the seat cushion frame (2) is at least partially embedded in the seat cushion filling, the backrest frame (4) is at least partially embedded in the backrest filling, the seat cushion cover covers the seat cushion frame (2) and the seat cushion filling, and the backrest cover covers the backrest frame (4) and the backrest filling.

15. A vehicle, characterized in that, Including the vehicle seat as described in claim 14.

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