Support lifting device for automobile seat

Abstract

The invention discloses a support lifting device for an automobile seat, and relates to the technical field of automobile seat lifting supports, the support lifting device comprises a backrest framework assembly and a support assembly, the backrest framework assembly is rotatably mounted on the support assembly, and a driving mechanism is mounted at the rotary joint of the backrest framework assembly and the support assembly; the driving mechanism enables the backrest framework assembly to rotate on the support assembly, a lifting support for lifting the cushion and a lifting mechanism are installed on the support assembly, and the lifting mechanism drives the lifting support to rotate. When the backrest is adjusted backwards, the lifting mechanism drives the lifting support to rotate, the cushion is lifted, the Z-direction height difference between the cushion and the backrest is reduced, and even the cushion and the backrest form the same horizontal plane. The seat cushion is lifted, the height difference between the seat cushion and the backrest is reduced, the hip of a passenger is lifted, the problem that the backrest abuts against the waist is solved, and the comfort of the passenger during a rest is improved. When the cushion is lifted to the same plane with the backrest, a passenger can lie on the seat, and the requirement of the passenger for resting in a lying posture is met.

Description

Technical Field

[0001] This invention relates to the field of automotive seat lifting bracket technology, specifically an automotive seat lifting device. Background Technology

[0002] Car seats are one of the core components of a vehicle, and are systems engineering products that integrate ergonomics, mechanical drive, and control engineering to provide comfortable support for drivers and passengers. With the development of technology and the increasing demand for comfort, car seats have evolved from basic seating tools into comprehensive systems that integrate safety, comfort, and intelligence.

[0003] When passengers rest in their seats, there are two scenarios: 1. Short rest (nap): The car seat back is adjusted backward to allow passengers to recline at a large angle. This is a common scenario for many users. Currently, when the backrest of a car seat is adjusted backward, a significant Z-axis height difference easily occurs between the backrest and the rear of the seat cushion. This height difference causes the passenger's lower back to buckle while reclining, and their buttocks do not contact the seat cushion, affecting passenger comfort. 2. Long-term rest: Reclining flat is more comfortable for passengers. Because traditional seat backrests fold flat, an even larger Z-axis step difference is created between the backrest and the seat cushion, making it impossible for passengers to recline completely flat.

[0004] In addition to the issues mentioned above, existing seats still fall short in terms of leg support and comfort. Furthermore, current seatbacks cannot fully recline flat and are not adaptable to different vehicle body styles. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art, and to propose a car seat support lifting device.

[0006] To solve the above problems, the present invention provides the following technical solution: a car seat support lifting device, comprising a backrest frame assembly and a support assembly, wherein the backrest frame assembly is rotatably mounted on the support assembly, and a driving mechanism is installed at the rotatable connection between the backrest frame assembly and the support assembly, the driving mechanism causing the backrest frame assembly to rotate on the support assembly, and a rear lifting bracket and a lifting mechanism for lifting the seat cushion are installed on the support assembly, the lifting mechanism causing the rear lifting bracket to rotate on the support assembly, thereby reducing the Z-axis height difference between the seat cushion and the backrest or even forming the same plane.

[0007] The rear lifting bracket is connected to a bracket connecting rod, and a bracket seat is installed at each end of the bracket connecting rod. A rotating seat is rotatably connected to the bracket seat. The rotating seat is connected to the support assembly. A pad rod is provided at one end of the support assembly that is connected to the backrest frame assembly. A support member for supporting the rear lifting bracket is installed on the pad rod.

[0008] The lifting mechanism includes two angle adjusters symmetrically mounted on the support assembly and a seat drive motor. The rotation centers of the two angle adjusters are connected by a linkage shaft. The seat drive motor is connected to the linkage shaft for transmission. The angle adjusters are mounted on the support assembly via a fixing plate. A drive plate is mounted on one end of the angle adjuster. A lifting plate is rotatably connected to one end of the drive plate. One end of the lifting plate is rotatably connected to the rear lifting bracket via a connecting frame. A rotating baffle is provided on the drive plate to cooperate with the angle adjusters.

[0009] The lifting mechanism includes two angle adjusters 1 symmetrically mounted on the support assembly, a seat cushion drive motor, and an overall lifting motor. The rotation centers of the two angle adjusters 1 are connected by a linkage shaft. The overall lifting motor is connected to the linkage shaft for transmission. The angle adjusters 1 are mounted on the support assembly through an overall fixing plate. An overall drive plate is mounted on one end of the angle adjuster 1 located on the outside of the support assembly. An overall lifting plate is mounted on one end of the overall drive plate. The overall lifting plate is connected to the drive mechanism.

[0010] The two rotating seats are connected by a rear support rod. Two side rods are symmetrically installed on the rear support rod. One end of the two side rods is connected to an integral connecting rod. The two ends of the integral connecting rod are respectively connected to two integral lifting plates. A support rod for the rotating connection support assembly is installed on the side rod.

[0011] Both side rods are rotatably connected to the rear lifting bracket via a rear lifting link. The seat cushion drive motor is mounted on the rear support rod via a mounting base, and the output end of the seat cushion drive motor is connected to the rear lifting bracket.

[0012] The lifting mechanism includes two angle adjusters 1 symmetrically mounted on the support assembly, a seat drive motor and a front drive motor. The rotation centers of the two angle adjusters 1 are connected by a linkage shaft. The front drive motor is connected to the linkage shaft for transmission. The angle adjusters 1 are mounted on the support assembly by a fixing plate. A drive plate is mounted on one end of the angle adjuster 1. A lifting plate is rotatably connected to one end of the drive plate.

[0013] The two rotating seats are connected by a rear support rod. Two side rods are symmetrically installed on the rear support rod. One end of the two side rods is connected to a rotating rod. The rotating rod is rotatably connected to the pad rod through a connector.

[0014] The lifting plate is rotatably connected to the side rods via a connecting frame, and both side rods are rotatably connected to the rear lifting bracket via a rear lifting connecting rod.

[0015] The seat cushion drive motor is mounted on the rear support rod via a mounting bracket, and the output end of the seat cushion drive motor is connected to the rear lifting bracket.

[0016] The lifting mechanism includes two angle adjusters 1 symmetrically mounted on the support assembly, a seat cushion drive motor and a seat cushion lifting motor. The rotation centers of the two angle adjusters 1 are connected by a linkage shaft. The seat cushion lifting motor is connected to the linkage shaft for transmission. The angle adjusters 1 are mounted on the support assembly by a fixing plate. A drive plate is installed at one end of the angle adjusters 1.

[0017] The two rotating seats are connected by a rear support rod. Two side rods are symmetrically installed on the rear support rod. The side rods are rotatably connected to the drive plate. One end of each side rod is bent and connected to form a seat cushion lifting bracket. A support rod for rotatably connecting the support assembly is installed on the side rod.

[0018] Both side rods are rotatably connected to the rear lifting bracket via a rear lifting link. The seat cushion drive motor is mounted on the rear support rod via a mounting base, and the output end of the seat cushion drive motor is connected to the rear lifting bracket.

[0019] The lifting mechanism includes two sets of angle adjusters 1 symmetrically mounted on the support assembly, a seat drive motor, a front drive motor, and an overall lifting motor. Each set of angle adjusters 1 has two angle adjusters 1. The rotation centers of the two sets of angle adjusters 1 are connected by a linkage shaft and a front linkage shaft, respectively. The overall lifting motor is connected to the linkage shaft for transmission, and the front drive motor is connected to the front linkage shaft for transmission.

[0020] A set of angle adjusters connected to the overall lifting motor is mounted on the support assembly via an overall fixing plate. An overall drive plate is mounted on one end of the angle adjuster located on the outside of the support assembly, and one end of the overall drive plate is connected to the drive mechanism.

[0021] Another set of the angle adjusters connected to the front drive motor is mounted on the support assembly via a fixing plate. A drive plate is mounted on the other end of the angle adjuster, and a support rod is rotatably connected to one end of the drive plate.

[0022] The two rotating seats are connected by a rear support rod, on which two side rods are symmetrically mounted. The side rods are rotatably connected to the support rod, and one end of the two side rods is connected to an integral connecting rod. The two ends of the integral connecting rod are respectively connected to the drive mechanism.

[0023] Both side rods are rotatably connected to the rear lifting bracket via a rear lifting link. The seat cushion drive motor is mounted on the rear support rod via a mounting base, and the output end of the seat cushion drive motor is connected to the rear lifting bracket.

[0024] The seat cushion drive motor is a lead screw motor, and the rear lifting linkage consists of two plates that are rotatably connected at one end. The other two ends of the two plates are rotatably connected to the side rod and the rear lifting bracket, respectively.

[0025] The drive mechanism includes two backrest angle adjusters symmetrically mounted on the backrest frame assembly. The two backrest angle adjusters are connected and driven by a backrest linkage shaft. A lower connecting plate is mounted on the outer side of the backrest angle adjuster. One end of the lower connecting plate is connected to the support assembly. A backrest drive motor is mounted on the backrest frame assembly. The backrest drive motor is located on one side of one of the backrest angle adjusters and is connected and driven by the backrest linkage shaft.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention reduces the height difference between the seat cushion and the backrest by raising the seat cushion, thus elevating the passenger's buttocks and avoiding the problem of the backrest pressing against the lower back, thereby improving the passenger's comfort when taking a nap. When the seat cushion is raised to the same plane as the backrest, the passenger can lie flat on the seat, meeting the passenger's need for reclining rest.

[0028] 2. The seat cushion is raised forward to increase leg support and improve comfort when the backrest is adjusted to a large angle.

[0029] 3. The overall lifting mechanism can raise the backrest pivot, allowing the backrest to fold flat to avoid wheel arches and adapt to different vehicle body environments. Attached Figure Description

[0030] Figure 1 This is an overall structural diagram of the present invention (Embodiment 1);

[0031] Figure 2 This is a perspective view of the connection between the rear lifting bracket and the support assembly of the present invention (Embodiment 1).

[0032] Figure 3 This is a perspective view of the connection between the seat cushion drive motor and the linkage shaft of the present invention (Embodiment 1).

[0033] Figure 4 This is an overall structural diagram of the present invention (Embodiment 2);

[0034] Figure 5 This is a perspective view of the connection between the support rod and the rear lifting support of the present invention (Embodiment 2).

[0035] Figure 6 This is a perspective view of the connection between the drive plate and the lifting plate of the present invention (Embodiment 2).

[0036] Figure 7 This is a perspective view of the connection between the side rod and the rear lifting bracket of the present invention (Embodiment 2).

[0037] Figure 8 This is an overall structural diagram of the present invention (Embodiment 3);

[0038] Figure 9This is a diagram showing the positional distribution of the overall lifting motor and the seat cushion drive motor of the present invention (Embodiment 3).

[0039] Figure 10 This is a diagram showing the connection between the rear lifting link and the side link of the present invention (Embodiment 3).

[0040] Figure 11 This is an overall structural diagram of the present invention (Embodiment 4);

[0041] Figure 12 This is a distribution diagram of the seat cushion drive motor, front drive motor and overall lifting motor of the present invention (Embodiment 4).

[0042] Figure 13 This is a perspective view of the connection between the front drive motor and the front linkage shaft of the present invention (Embodiment 4).

[0043] Figure 14 This is a connection diagram of the overall connecting rod, side rod, and lower connecting plate of the present invention (Embodiment 4).

[0044] Figure 15 This is a connection diagram of the drive plate and support rod of the present invention (Embodiment 4).

[0045] Figure 16 This is an overall structural diagram of the present invention (Embodiment 5);

[0046] Figure 17 This is a perspective view of the connection between the support rod, drive plate and side rod of the present invention (Embodiment 5).

[0047] Figure 18 This is a perspective view of the connection between the seat cushion lifting motor and the linkage shaft of the present invention (Embodiment 5).

[0048] Figure 19 This is a perspective view of the connection between the seat drive motor and the rear support rod of the present invention (Embodiment 5).

[0049] In the diagram: 1. Backrest frame assembly; 2. Backrest drive motor; 3. Backrest angle adjuster; 4. Lower connecting plate; 5. Support assembly; 6. Angle adjuster one; 7. Fixing plate; 8. Drive plate; 9. Lifting plate; 10. Linkage shaft; 11. Seat cushion drive motor; 12. Rear lifting bracket; 13. Bracket base; 14. Rotating seat; 15. Rotating baffle; 17. Front drive motor; 18. Rear support rod; 19. Side rod; 20. Rotating rod; 21. Mounting base; 22. Rear lifting linkage; 23. Bracket linkage; 24. Support rod; 25. Overall linkage; 26. Overall lifting motor; 27. Overall fixing plate; 28. Overall drive plate; 29. ​​Overall lifting plate; 30. Front linkage shaft; 31. Seat cushion lifting motor; 32. Seat cushion lifting bracket. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0051] Example: Figure 1 - Figure 19 As shown, the present invention provides a technical solution: a car seat support lifting device, including a backrest frame assembly 1 and a support assembly 5. The backrest frame assembly 1 is rotatably mounted on the support assembly 5. A driving mechanism is installed at the rotatable connection between the backrest frame assembly 1 and the support assembly 5. The driving mechanism causes the backrest frame assembly 1 to rotate on the support assembly 5. A rear lifting bracket 12 for lifting the seat cushion and a lifting mechanism are installed on the support assembly 5. The lifting mechanism causes the rear lifting bracket 12 to rotate on the support assembly 5, thereby reducing the Z-axis height difference between the seat cushion and the backrest or even forming the same plane.

[0052] The drive mechanism includes two backrest adjusters 3 symmetrically mounted on the backrest frame assembly 1. The two backrest adjusters 3 are connected and driven by a backrest linkage shaft. A lower connecting plate 4 is mounted on the outside of the backrest adjuster 3. A backrest drive motor 2 is mounted on the backrest frame assembly 1. The backrest drive motor 2 is located on one side of one of the backrest adjusters 3 and is connected and driven by the backrest linkage shaft.

[0053] The rear lifting bracket 12 is connected to a bracket connecting rod 23. A bracket seat 13 is installed at each end of the bracket connecting rod 23. A rotating seat 14 is rotatably connected to the bracket seat 13. The rotating seat 14 is connected to the support assembly 5. A pad rod is provided at the end of the support assembly 5 that is connected to the backrest frame assembly 1. A support member supporting the rear lifting bracket 12 is installed on the pad rod.

[0054] As a rotating and locking pair, the angle adjuster ensures both stability and rigidity, and also has the ability to lock at various angles.

[0055] Example 1, as Figure 1 - Figure 3 As shown, the main purpose is to lift the seat cushion backward, so that the effect is that the rear lifting combined with the backrest can be flattened, thus achieving a double bed mode.

[0056] The lower connecting plate 4 is connected to the support assembly 5.

[0057] The lifting mechanism includes two angle adjusters 6 symmetrically mounted on the support assembly 5 and a seat drive motor 11. The rotation centers of the two angle adjusters 6 are connected by a linkage shaft 10. The seat drive motor 11 is connected to the linkage shaft 10 for transmission. The angle adjusters 6 are mounted on the support assembly 5 through a fixing plate 7. A drive plate 8 is mounted on one end of the angle adjuster 6. A lifting plate 9 is rotatably connected to one end of the drive plate 8. One end of the lifting plate 9 is rotatably connected to the rear lifting bracket 12 through a connecting frame. A rotating baffle 15 is provided on the drive plate 8 to cooperate with the angle adjuster 6.

[0058] When the seat cushion needs to be raised, the seat cushion drive motor 11 drives the two angle adjusters 6 to rotate via the linkage shaft 10. The angle of the angle adjusters 6 is transmitted, and the drive plate 8 rotates under the drive of the angle adjusters 6, causing the lifting plate 9 to move. This raises the rear lifting bracket 12 by rotating it around the rotation axis (i.e., the rotation axis of the connection point between the bracket base 13 and the rotating seat 14) via the bracket connecting rod 23 and the bracket base 13. By raising the rear end of the seat cushion, the height difference between the seat cushion and the backrest in the Z-direction is reduced, and the seat cushion and backrest may even be made to form a flat plane in the Z-direction.

[0059] Example 2, as Figure 4 - Figure 7 As shown, the main purpose is to lift the seat cushion backward and forward. The effects are: 1. The backward lifting, combined with the backrest folding flat, can achieve a flat bed mode; 2. The forward lifting of the seat cushion increases leg support and improves comfort when the backrest is adjusted to a large angle.

[0060] The lower connecting plate 4 is connected to the support assembly 5.

[0061] The lifting mechanism includes two angle adjusters 6 symmetrically mounted on the support assembly 5, a seat drive motor 11 and a front drive motor 17. The rotation centers of the two angle adjusters 6 are connected by a linkage shaft 10. The front drive motor 17 is connected to the linkage shaft 10 for transmission. The angle adjusters 6 are mounted on the support assembly 5 through a fixing plate 7. A drive plate 8 is mounted on one end of the angle adjuster 6. A lifting plate 9 is rotatably connected to one end of the drive plate 8.

[0062] The two rotating seats 14 are connected by a rear support rod 18. Two side rods 19 are symmetrically installed on the rear support rod 18. One end of the two side rods 19 is connected to a rotating rod 20. The rotating rod 20 is rotatably connected to the pad rod through a connector.

[0063] The lifting plate 9 is rotatably connected to the side rod 19 via the connecting frame, and both side rods 19 are rotatably connected to the rear lifting bracket 12 via the rear lifting connecting rod 22.

[0064] The seat drive motor 11 is mounted on the rear support rod 18 via the mounting base 21, and the output end of the seat drive motor 11 is connected to the rear lifting bracket 12.

[0065] When the seat cushion is raised forward, the front drive motor 17 works, and the linkage shaft 10 drives the two angle adjusters 6 to rotate, which causes the drive plate 8 to drive the lifting plate 9 to rotate. The lifting plate 9 rotates to lift the side rod 19. During the rotation and lifting process, the side rod 19 rotates around the pad rod through the rotating rod 20, and rotates and lifts the rear support rod 18, the rotating seat 14, the bracket seat 13, the bracket connecting rod 23, and the rear lifting bracket 12.

[0066] When the seat cushion is raised, the seat cushion drive motor 11 operates, and the output shaft of the seat cushion drive motor 11 extends, pushing the rear lifting bracket 12, the bracket connecting rod 23, and the bracket base 13 to rotate and rise around the rotation axis (i.e., the rotation axis of the rotation connection point between the bracket base 13 and the rotating seat 14). During the rotation, the rear lifting connecting rod 22 rotates between the rear lifting bracket 12 and the side rod 19, providing auxiliary support for the raised rear lifting bracket 12.

[0067] Example 3, as Figure 8 - Figure 10 As shown, the main purpose is to lift the seat cushion and lift the entire seat. The effects achieved are: 1. The overall lifting can raise the backrest pivot, allowing the backrest to fold flat to avoid the wheel wells and adapt to different vehicle environments; 2. The rear lifting combined with the backrest folding flat can achieve a flat bed mode.

[0068] The lifting mechanism includes two angle adjusters 6 symmetrically mounted on the support assembly 5, a seat drive motor 11, and an integral lifting motor 26. The rotation centers of the two angle adjusters 6 are connected by a linkage shaft 10. The integral lifting motor 26 is connected to the linkage shaft 10 for transmission. The angle adjusters 6 are mounted on the support assembly 5 through an integral fixing plate 27. An integral drive plate 28 is mounted on one end of the angle adjuster 6 located outside the support assembly 5. An integral lifting plate 29 is mounted on one end of the integral drive plate 28. The integral lifting plate 29 is connected to the lower connecting plate 4.

[0069] The two rotating seats 14 are connected by a rear support rod 18. Two side rods 19 are symmetrically installed on the rear support rod 18. One end of the two side rods 19 is connected to an integral connecting rod 25. The two ends of the integral connecting rod 25 are respectively connected to two integral lifting plates 29. A support rod 24 of the rotating connection support assembly 5 is installed on the side rods 19.

[0070] Both side rods 19 are rotatably connected to the rear lifting bracket 12 via the rear lifting link 22. The seat drive motor 11 is mounted on the rear support rod 18 via the mounting base 21, and the output end of the seat drive motor 11 is connected to the rear lifting bracket 12.

[0071] During the overall lifting process, the overall lifting motor 26 operates, transmitting power through the linkage shaft 10. The overall drive plate 28 drives the overall lifting plate 29 to rotate, raising the backrest pivot (i.e., the location of the backrest linkage shaft) via the lower connecting plate 4 and the backrest angle adjuster 3. During the lifting process, the overall lifting plate 29 rotates and raises the overall connecting rod 25, causing the overall connecting rod 25 to rotate and raise one end of the side rod 19. During the rotation and lifting process, a thrust is generated on the side rod 19 away from the backrest. During the rotation of the side rod 19, one end of the support rod 24 rotates on the support assembly 5, and the other end follows the rotation of the side rod 19. The support rod 24 and the overall connecting rod 25 cooperate to rotate and raise the side rod 19. During the rotation and raising of the side rod 19, the rear support rod 18, the rotating seat 14, the bracket seat 13, the bracket connecting rod 23, and the rear lifting bracket 12 will rotate and raise synchronously.

[0072] When the seat cushion is raised, the seat cushion drive motor 11 operates, and the output shaft of the seat cushion drive motor 11 extends, pushing the rear lifting bracket 12, the bracket connecting rod 23, and the bracket base 13 to rotate and rise around the rotation axis (i.e., the rotation axis of the rotation connection point between the bracket base 13 and the rotating seat 14). During the rotation, the rear lifting connecting rod 22 rotates between the rear lifting bracket 12 and the side rod 19, providing auxiliary support for the raised rear lifting bracket 12.

[0073] Example 4, as Figure 11 - Figure 15 As shown, the main purpose is to lift the seat cushion backward, lift the entire seat, and lift the seat cushion forward. The effects achieved are: 1. Lifting the entire seat can raise the backrest pivot, allowing the backrest to fold flat backward to avoid wheel arches and adapt to different vehicle environments; 2. Lifting the rear seat in conjunction with folding the backrest flat can achieve a flat-lying, double-bed mode; 3. Lifting the seat cushion forward increases leg support and improves comfort when the backrest is adjusted to a large angle.

[0074] The lifting mechanism includes two sets of angle adjusters 6 symmetrically mounted on the support assembly 5, a seat drive motor 11, a front drive motor 17, and an overall lifting motor 26. Each set of angle adjusters 6 has two angle adjusters. The rotation centers of the two sets of angle adjusters 6 are connected by a linkage shaft 10 and a front linkage shaft 30, respectively. The overall lifting motor 26 is connected to the linkage shaft 10 for transmission, and the front drive motor 17 is connected to the front linkage shaft 30 for transmission.

[0075] A set of angle adjusters 6 connected to the overall lifting motor 26 is mounted on the support assembly 5 via an overall fixing plate 27. An overall drive plate 28 is installed at one end of the angle adjuster 6 located on the outside of the support assembly 5. One end of the overall drive plate 28 is connected to the lower connecting plate 4.

[0076] Another set of angle adjusters 6 connected to the front drive motor 17 is mounted on the support assembly 5 via a fixing plate 7. A drive plate 8 is mounted on the other end of the angle adjuster 6, and a support rod 24 is rotatably connected to one end of the drive plate 8.

[0077] The two rotating seats 14 are connected by a rear support rod 18. Two side rods 19 are symmetrically installed on the rear support rod 18. The side rods 19 are rotatably connected to the support rod 24. One end of the two side rods 19 is connected to an integral connecting rod 25. The two ends of the integral connecting rod 25 are rotatably connected to the lower connecting plate 4 respectively.

[0078] Both side rods 19 are rotatably connected to the rear lifting bracket 12 via the rear lifting link 22. The seat drive motor 11 is mounted on the rear support rod 18 via the mounting base 21, and the output end of the seat drive motor 11 is connected to the rear lifting bracket 12.

[0079] During the overall lifting process, the overall lifting motor 26 operates, transmitting power through the linkage shaft 10. The overall drive plate 28 drives the lower connecting plate 4 to rotate and lift, raising the backrest pivot (i.e., the location of the backrest linkage shaft) through the lower connecting plate 4 and the backrest angle adjuster 3. During the lifting process, the lower connecting plate 4 rotates and lifts the overall connecting rod 25, causing the overall connecting rod 25 to rotate and lift one end of the side rod 19. During the rotation and lifting process, a thrust is generated on the side rod 19 away from the backrest. During the rotation of the side rod 19, one end of the support rod 24 rotates on the drive plate 8, and the other end follows the rotation of the side rod 19. The support rod 24 and the overall connecting rod 25 cooperate to rotate and lift the side rod 19. During the rotation and lifting process of the side rod 19, the rear support rod 18, the rotating seat 14, the bracket seat 13, the bracket connecting rod 23, and the rear lifting bracket 12 will rotate and lift synchronously.

[0080] When the seat cushion is raised forward, the front drive motor 17 operates, using the front linkage shaft 30 to drive the two angle adjusters 6 to rotate, causing the drive plate 8 to drive the support rod 24 to rotate. The support rod 24 rotates to raise the side rod 19. During the rotation and raising process, the side rod 19 rotates around the axis of the integral connecting rod 25, and also rotates and raises the rear support rod 18, the rotating seat 14, the bracket seat 13, the bracket connecting rod 23, and the rear lifting bracket 12.

[0081] When the seat cushion is raised, the seat cushion drive motor 11 operates, and the output shaft of the seat cushion drive motor 11 extends, pushing the rear lifting bracket 12, the bracket connecting rod 23, and the bracket base 13 to rotate and rise around the rotation axis (i.e., the rotation axis of the rotation connection point between the bracket base 13 and the rotating seat 14). During the rotation, the rear lifting connecting rod 22 rotates between the rear lifting bracket 12 and the side rod 19, providing auxiliary support for the raised rear lifting bracket 12.

[0082] Example 5, such as Figure 16 - Figure 19 As shown, the main purpose is to lift the seat cushion from the back and lift the seat cushion as a whole.

[0083] The lower connecting plate 4 is connected to the support assembly 5.

[0084] The lifting mechanism includes two angle adjusters 6 symmetrically mounted on the support assembly 5, a seat drive motor 11 and a seat lifting motor 31. The rotation centers of the two angle adjusters 6 are connected by a linkage shaft 10. The seat lifting motor 31 is connected to the linkage shaft 10 for transmission. The angle adjusters 6 are mounted on the support assembly 5 through a fixing plate 7. A drive plate 8 is mounted on one end of the angle adjuster 6.

[0085] The two rotating seats 14 are connected by a rear support rod 18. Two side rods 19 are symmetrically installed on the rear support rod 18. The side rods 19 are rotatably connected to the drive plate 8. One end of the two side rods 19 is bent and connected to form a seat cushion lifting bracket 32. A support rod 24 of the rotatably connected support assembly 5 is installed on the side rods 19.

[0086] Both side rods 19 are rotatably connected to the rear lifting bracket 12 via the rear lifting link 22. The seat drive motor 11 is mounted on the rear support rod 18 via the mounting base 21, and the output end of the seat drive motor 11 is connected to the rear lifting bracket 12.

[0087] When the seat cushion is lifted as a whole, the seat cushion lifting motor 31 works and drives the drive plate 8 to rotate. The drive plate 8 rotates and lifts the side rod 19. During the rotation and lifting process, the side rod 19 drives the support rod 24 to rotate around the rotation point with the support assembly 5. During the rotation process, the support rod 24 cooperates with the drive plate 8 to rotate and lift the side rod 19. The side rod 19 rotates and lifts the rear support rod 18, the rotating seat 14, the bracket seat 13, the bracket connecting rod 23, and the rear lifting bracket 12.

[0088] When the seat cushion is raised, the seat cushion drive motor 11 operates, and the output shaft of the seat cushion drive motor 11 extends, pushing the rear lifting bracket 12, the bracket connecting rod 23, and the bracket base 13 to rotate and rise around the rotation axis (i.e., the rotation axis of the rotation connection point between the bracket base 13 and the rotating seat 14). During the rotation, the rear lifting connecting rod 22 rotates between the rear lifting bracket 12 and the side rod 19, providing auxiliary support for the raised rear lifting bracket 12.

[0089] In embodiments two, three, four, and five, the seat drive motor 11 used is a lead screw motor, and the rear lifting link 22 is composed of two plates that are rotatably connected at one end. The other two ends of the two plates are rotatably connected to the side rod 19 and the rear lifting bracket 12, respectively.

[0090] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A car seat support lifting device, characterized in that: The backrest frame assembly (1) and the support assembly (5) are included. The backrest frame assembly (1) is rotatably mounted on the support assembly (5). A drive mechanism is installed at the rotatable connection between the backrest frame assembly (1) and the support assembly (5). The drive mechanism causes the backrest frame assembly (1) to rotate on the support assembly (5). A rear lifting bracket (12) for lifting the seat cushion and a lifting mechanism are installed on the support assembly (5). The lifting mechanism causes the rear lifting bracket (12) to rotate on the support assembly (5), thereby reducing the Z-direction height difference between the seat cushion and the backrest or even forming the same plane.

2. The car seat support lifting device according to claim 1, characterized in that: The rear lifting bracket (12) is connected to a bracket connecting rod (23). A bracket seat (13) is installed at each end of the bracket connecting rod (23). A rotating seat (14) is rotatably connected to the bracket seat (13). The rotating seat (14) is connected to the support assembly (5). A pad rod is provided at one end of the support assembly (5) that is connected to the backrest frame assembly (1). A support member for supporting the rear lifting bracket (12) is installed on the pad rod.

3. The car seat support lifting device according to claim 2, characterized in that: The lifting mechanism includes two angle adjusters (6) symmetrically mounted on the support assembly (5) and a seat drive motor (11). The rotation centers of the two angle adjusters (6) are connected by a linkage shaft (10). The seat drive motor (11) is connected to the linkage shaft (10) for transmission. The angle adjuster (6) is mounted on the support assembly (5) by a fixing plate (7). A drive plate (8) is mounted on one end of the angle adjuster (6). A lifting plate (9) is rotatably connected to one end of the drive plate (8). One end of the lifting plate (9) is rotatably connected to the rear lifting bracket (12) through a connecting frame. A rotating baffle (15) is provided on the drive plate (8) for use with the angle adjuster (6).

4. The car seat support lifting device according to claim 2, characterized in that: The lifting mechanism includes two angle adjusters (6) symmetrically mounted on the support assembly (5), a seat drive motor (11), and an integral lifting motor (26). The rotation centers of the two angle adjusters (6) are connected by a linkage shaft (10). The integral lifting motor (26) is connected to the linkage shaft (10) for transmission. The angle adjusters (6) are mounted on the support assembly (5) through an integral fixing plate (27). An integral drive plate (28) is installed at one end of the angle adjuster (6) located outside the support assembly (5). An integral lifting plate (29) is installed at one end of the integral drive plate (28). The integral lifting plate (29) is connected to the drive mechanism. The two rotating seats (14) are connected by a rear support rod (18). Two side rods (19) are symmetrically installed on the rear support rod (18). One end of the two side rods (19) is connected to an integral connecting rod (25). The two ends of the integral connecting rod (25) are respectively connected to two integral lifting plates (29). The side rods (19) are equipped with support rods (24) of the rotating connection support assembly (5). Both side rods (19) are rotatably connected to the rear lifting bracket (12) via the rear lifting link (22). The seat drive motor (11) is mounted on the rear support rod (18) via the mounting base (21). The output end of the seat drive motor (11) is connected to the rear lifting bracket (12).

5. The car seat support lifting device according to claim 2, characterized in that: The lifting mechanism includes two angle adjusters (6) symmetrically mounted on the support assembly (5), a seat drive motor (11) and a front drive motor (17). The rotation centers of the two angle adjusters (6) are connected by a linkage shaft (10). The front drive motor (17) is connected to the linkage shaft (10) for transmission. The angle adjusters (6) are mounted on the support assembly (5) by a fixing plate (7). A drive plate (8) is mounted on one end of the angle adjuster (6). A lifting plate (9) is rotatably connected to one end of the drive plate (8). The two rotating seats (14) are connected by a rear support rod (18). Two side rods (19) are symmetrically installed on the rear support rod (18). One end of the two side rods (19) is connected to a rotating rod (20). The rotating rod (20) is rotatably connected to the pad rod through a connector. The lifting plate (9) is rotatably connected to the side rod (19) via a connecting frame, and both side rods (19) are rotatably connected to the rear lifting bracket (12) via a rear lifting connecting rod (22); The seat drive motor (11) is mounted on the rear support rod (18) via the mounting base (21), and the output end of the seat drive motor (11) is connected to the rear lifting bracket (12).

6. The car seat support lifting device according to claim 2, characterized in that: The lifting mechanism includes two angle adjusters (6) symmetrically mounted on the support assembly (5), a seat drive motor (11) and a seat lifting motor (31). The rotation centers of the two angle adjusters (6) are connected by a linkage shaft (10). The seat lifting motor (31) is connected to the linkage shaft (10) for transmission. The angle adjusters (6) are mounted on the support assembly (5) by a fixing plate (7). A drive plate (8) is mounted on one end of the angle adjusters (6). The two rotating seats (14) are connected by a rear support rod (18). Two side rods (19) are symmetrically installed on the rear support rod (18). The side rods (19) are rotatably connected to the drive plate (8). One end of the two side rods (19) is bent and connected to form a seat cushion lifting bracket (32). A support rod (24) for rotatably connecting the support assembly (5) is installed on the side rods (19). Both side rods (19) are rotatably connected to the rear lifting bracket (12) via the rear lifting link (22). The seat drive motor (11) is mounted on the rear support rod (18) via the mounting base (21). The output end of the seat drive motor (11) is connected to the rear lifting bracket (12).

7. The car seat support lifting device according to claim 2, characterized in that: The lifting mechanism includes two sets of angle adjusters (6) symmetrically mounted on the support assembly (5), a seat drive motor (11), a front drive motor (17) and an overall lifting motor (26). Each set of angle adjusters (6) has two angle adjusters. The rotation centers of the two sets of angle adjusters (6) are connected by a linkage shaft (10) and a front linkage shaft (30) respectively. The overall lifting motor (26) is connected to the linkage shaft (10) for transmission, and the front drive motor (17) is connected to the front linkage shaft (30) for transmission. A set of angle adjusters (6) connected to the overall lifting motor (26) is mounted on the support assembly (5) via an overall fixing plate (27). An overall drive plate (28) is mounted on one end of the angle adjuster (6) located outside the support assembly (5). One end of the overall drive plate (28) is connected to the drive mechanism. Another set of the angle adjusters (6) connected to the front drive motor (17) is mounted on the support assembly (5) via a fixing plate (7). The other end of the angle adjuster (6) is equipped with a drive plate (8), and one end of the drive plate (8) is rotatably connected to a support rod (24). The two rotating seats (14) are connected by a rear support rod (18). Two side rods (19) are symmetrically installed on the rear support rod (18). The side rods (19) are rotatably connected to the support rod (24). One end of the two side rods (19) is connected to an integral connecting rod (25). The two ends of the integral connecting rod (25) are respectively connected to the drive mechanism.

8. The car seat support lifting device according to claim 7, characterized in that: Both side rods (19) are rotatably connected to the rear lifting bracket (12) via the rear lifting link (22). The seat drive motor (11) is mounted on the rear support rod (18) via the mounting base (21). The output end of the seat drive motor (11) is connected to the rear lifting bracket (12).

9. A car seat support lifting device according to any one of claims 4-8, characterized in that: The seat cushion drive motor (11) is a lead screw motor, and the rear lifting link (22) is composed of two plates that are rotatably connected at one end. The other two ends of the two plates are rotatably connected to the side rod (19) and the rear lifting bracket (12), respectively.

10. A car seat support lifting device according to any one of claims 1-8, characterized in that: The drive mechanism includes two backrest angle adjusters (3) symmetrically mounted on the backrest frame assembly (1). The two backrest angle adjusters (3) are connected and driven by a backrest linkage shaft. A lower connecting plate (4) is installed on the outside of the backrest angle adjuster (3). One end of the lower connecting plate (4) is connected to the support assembly (5). A backrest drive motor (2) is installed on the backrest frame assembly (1). The backrest drive motor (2) is located on one side of one of the backrest angle adjusters (3). The backrest drive motor (2) is connected and driven by the backrest linkage shaft.

Images