Adjusting device, seat and vehicle

Abstract

The utility model provides an adjusting device, a seat and a vehicle. The adjusting device comprises a base part, a first adjusting part, a second adjusting part, a first adjusting part and a second adjusting part, the frame part comprises a first frame and a second frame; the driving part is arranged between the first bottom plate and the second bottom plate in the width direction and is used for providing driving force; the first transmission part comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism is movably connected to the first bottom plate and the first frame, and the second transmission mechanism is movably connected to the second bottom plate and the second frame. The first transmission mechanism and the second transmission mechanism are driven by the same driving part, so that the frame part can be far away from and close to the base part in the height direction; in the length direction, the first transmission part is arranged at the front side end of the adjusting device, and the driving part is arranged on the rear side of the first transmission part.

Description

Technical Field

[0001] This application relates to an adjustment device, a seat, and a vehicle. Background Technology

[0002] As automotive products continue to evolve, automotive seat products are also being upgraded and improved. Automotive seats generally consist of a backrest and a seat. To ensure drivers of different heights can comfortably operate the steering wheel and passengers have a comfortable riding experience, the seat needs to be designed to be adjustable in height and tilt angle, allowing drivers and passengers to adjust according to their needs. Furthermore, this adjustment mechanism should be stable and reliable. In addition, there is a need to further develop compact designs for automotive seats to save space for additional features such as seat components. These factors place new demands on the research and development of automotive seat products.

[0003] In view of this, the inventors have proposed an adjustment device, a seat, and a means of transportation. Utility Model Content

[0004] The purpose of this application is to provide an adjustment device.

[0005] Another objective of this application is to provide a seat.

[0006] Another objective of this application is to provide a means of transportation.

[0007] According to one aspect of this application, an adjustment device includes: a base portion including a first base plate and a second base plate respectively located on both sides in the width direction; a frame portion including a first frame and a second frame respectively located on both sides in the width direction; a drive portion disposed between the first base plate and the second base plate in the width direction for providing driving force; a first transmission portion including a first transmission mechanism and a second transmission mechanism respectively located on both sides in the width direction; the first transmission mechanism is movably connected to the first base plate and the first frame respectively, and the second transmission mechanism is movably connected to the second base plate and the second frame respectively; the first transmission mechanism and the second transmission mechanism are driven by the same drive portion so that the frame portion can move away from and closer to the base portion in the height direction; wherein, in the length direction, the first transmission portion is disposed at the front end of the adjustment device, and the drive portion is disposed at the rear side of the first transmission portion.

[0008] The adjustment device described in the above embodiments adopts a structural layout in which the first base plate, the second base plate, the first frame, the second frame, the first transmission mechanism, and the second transmission mechanism are all distributed on both sides in the width direction. The first transmission mechanism and the second transmission mechanism are driven synchronously by the same drive unit, which makes the structure more rigid and ensures that the adjustment device maintains balanced and stable adjustment on both sides without vibration, jumping, or dead noise. It can also maintain balanced deformation on both sides during a collision and can withstand high-energy impacts, especially for seats with integrated seat belts where the seat belt retractor is located in the seat, to prevent the seat from failing due to impact after a collision. In addition, the arrangement of placing the drive unit on the rear side of the first transmission unit creates a larger space on the front side of the drive unit, further achieving a compact design.

[0009] In one or more embodiments, the adjusting device includes: a second transmission part disposed at the rear end of the adjusting device in the length direction, and including a third transmission mechanism and a fourth transmission mechanism respectively located on both sides in the width direction; wherein the third transmission mechanism is movably connected to the first base plate and the first frame respectively, the fourth transmission mechanism is movably connected to the second base plate and the second frame respectively, and the third transmission mechanism and the fourth transmission mechanism are fixedly connected by a first connecting pipe to move synchronously.

[0010] In one or more embodiments, the driving unit includes: a motor bracket, a motor, a first gear set, a first lead screw and nut mechanism, a second gear set, and a second lead screw and nut mechanism; the motor bracket is arranged along the width direction; the motor is fixedly connected to the middle of the motor bracket; the first gear set and the second gear set are driven by the motor and are respectively fixedly connected to the two ends of the motor bracket; the first gear set is rotatably connected to the first base plate, and the second gear set is rotatably connected to the second base plate; under the drive of the motor, the first gear set can drive the nut of the first lead screw and nut mechanism to rotate and drive the lead screw to move along the length direction, and the second gear set can drive the nut of the second lead screw and nut mechanism to rotate and drive the lead screw to move along the length direction; the front end of the first lead screw and nut mechanism is rotatably connected to the first transmission mechanism, and the front end of the second lead screw and nut mechanism is rotatably connected to the second transmission mechanism.

[0011] In one or more embodiments, the drive unit includes: a first mounting plate and a second mounting plate; the first mounting plate is fixedly connected to the first base plate and rotatably connected to the first gear set; the second mounting plate is fixedly connected to the second base plate and rotatably connected to the second gear set.

[0012] In one or more embodiments, the first transmission part includes a second connecting pipe; both the first transmission mechanism and the second transmission mechanism include a first connecting rod and a second connecting rod; one end of the first connecting rod is rotatably connected to the driving part, and the other end is rotatably connected to the second connecting rod; the other end of the second connecting rod is rotatably connected to the frame part; the second connecting pipe is rotatably connected between the first base plate and the second base plate, and passes through the middle of the first connecting rod, so that the first connecting rod can rotate relative to the base plate part.

[0013] In one or more embodiments, the second transmission part includes a fifth connecting pipe; the third transmission mechanism and the fourth transmission mechanism each include a third connecting rod; the third connecting rod is rotatably connected to the base part; the fifth connecting pipe is rotatably connected between the first frame and the second frame, and passes through the third connecting rod, so that the third connecting rod can rotate relative to the frame part.

[0014] In one or more embodiments, the third or fourth transmission mechanism is provided with a locking member for locking its relative movement with respect to the base portion.

[0015] According to another aspect of this application, a seat includes the adjustment device described in the above embodiments.

[0016] In one or more embodiments, the seat further includes a leg rest disposed in the front space of the drive unit.

[0017] According to another aspect of this application, a means of transportation includes the regulating device described in the above embodiments. Attached Figure Description

[0018] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:

[0019] Figure 1 This is a schematic diagram of the adjustment device according to one embodiment from a certain perspective.

[0020] Figure 2 This is a schematic diagram of the adjustment device of one embodiment from another perspective.

[0021] Figure 3 This is a partial structural schematic diagram of the drive unit in one embodiment.

[0022] Figure 4This is a schematic diagram of the adjustment device of one embodiment from another perspective.

[0023] Figure 5 This is a schematic diagram of the structure of the adjustment device in one state according to an embodiment.

[0024] Figure 6 This is a schematic diagram of the structure of the adjustment device in another state according to one embodiment.

[0025] Figure 7 This is a schematic diagram of the structure of an adjustment device according to one embodiment, viewed from one angle.

[0026] Figure 8 This is a schematic diagram of the adjustment device according to one embodiment from another perspective.

[0027] Figure 9 This is a schematic diagram of the adjustment device of one embodiment from another perspective.

[0028] Figure 10 This is a partial structural schematic diagram of the second transmission unit in one embodiment.

[0029] Figure label:

[0030] 100. Adjustment device;

[0031] 10. Base section;

[0032] 11. First base plate; 12. Second base plate;

[0033] 20. Frame section;

[0034] 21. First frame; 22. Second frame;

[0035] 30. Drive unit;

[0036] 31. Motor bracket; 32. Motor; 33. First gear set; 34. First lead screw and nut mechanism; 35. Second gear set; 36. Second lead screw and nut mechanism; 37. First mounting plate; 38. Second mounting plate;

[0037] 40. First transmission unit;

[0038] 41. First transmission mechanism; 42. Second transmission mechanism; 43, 43'. First connecting rod; 44, 44'. Second connecting rod; 45. Second connecting pipe; 46. Third connecting pipe; 47. Fourth connecting pipe;

[0039] 50. Second transmission unit;

[0040] 51. Third transmission mechanism; 52. Fourth transmission mechanism; 53. First connecting pipe; 54, 54'. Third connecting rod; 55. Fifth connecting pipe; 56. Sixth connecting pipe. Detailed Implementation

[0041] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0042] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0043] In the following description, the terms "upper," "lower," or other directional terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, or be implemented in a specific orientation. Therefore, they should not be construed as limitations on this application. In this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance.

[0044] It is understood that the technical solution of this application is particularly applicable to the height and angle adjustment of car seat products, but is not limited thereto. It can also be applied to other applicable occasions, such as seat products, where height and angle adjustment is required; for example, it can also be applied to other means of transportation, such as railway trains, ships, etc., and to other places, such as meeting venues, cinemas, etc.

[0045] In this application, the terms "length direction," "width direction," and "height direction" are determined according to the seating arrangement, i.e., the x, y, and z directions shown in the illustration. Furthermore, "front side" and "rear side" are distinguished according to the seating orientation, i.e., when the user is seated, they face forward and have their back to the rear. The term "middle" used in this application does not represent a strictly defined middle position, but rather refers to a position between one end and the other.

[0046] refer to Figure 1As shown, this application provides an adjustment device 100, which includes: a base portion 10, including a first base plate 11 and a second base plate 12 located on both sides in the width direction; a frame portion 20, including a first frame 21 and a second frame 22 located on both sides in the width direction; a drive portion 30, which is disposed between the first base plate 11 and the second base plate 12 along the width direction for providing driving force; a first transmission portion 40, including a first transmission mechanism 41 and a second transmission mechanism 42 located on both sides in the width direction; the first transmission mechanism 41 is movably connected to the first base plate 11 and the first frame 21, and the second transmission mechanism 42 is movably connected to the second base plate 12 and the second frame 22, respectively; the first transmission mechanism 41 and the second transmission mechanism 42 are driven by the same drive portion 30 so that the frame portion 20 can move away from and closer to the base portion 10 in the height direction; wherein, in the length direction, the first transmission portion 40 is disposed at the front end of the adjustment device 100, and the drive portion 30 is disposed at the rear side of the first transmission portion 40.

[0047] Specifically, the base portion 10 can be used to install the adjustment device 100 and the seat in the application environment, such as on the floor of a car interior, and the base portion 10 may also include a slide rail arranged along the length direction, so that the adjustment device 100 and the seat can be adjusted in the length direction; the frame portion 20 can be used to provide the installation position of the seat body, such as the seat cushion and backrest, and the frame portion 20 can drive the seat body to move under the adjustment of the adjustment device 100; the drive portion 30 is a component or assembly for providing driving force, such as by electric, hydraulic, or pneumatic means, but not limited thereto; the first transmission portion 40 is disposed at the front end of the adjustment device 100, that is, it can be mainly used for adjusting the front end of the seat; such as Figure 1 , Figure 7 As shown, the first transmission mechanism 41 and the second transmission mechanism 42 may be structures including multiple links or a single link, but are not limited thereto, so that the frame part 20 and the base part 10 can move relative to each other;

[0048] The adjustment device 100 described in the above embodiments adopts a structural layout in which the first base plate 11, the second base plate 12, the first frame 21, the second frame 22, the first transmission mechanism 41, and the second transmission mechanism 42 are distributed on both sides in the width direction, and the first transmission mechanism 41 and the second transmission mechanism 42 are driven by the same drive unit 30. This makes the structure more rigid and ensures that the adjustment device 100 maintains balanced and stable adjustment on both sides. It can also maintain balanced deformation on both sides during a collision and withstand large-energy impacts, especially for seats with integrated seat belts where the seat belt retractor is located in the seat, preventing the seat from failing due to impact after a collision. In addition, the arrangement of placing the drive unit 30 on the rear side of the first transmission unit 40 creates a larger space on the front side of the drive unit 30, further achieving a compact design. Furthermore, the adjustment device 100 has the advantages of simple structure and low cost.

[0049] like Figures 7 to 10 As shown, in one or more embodiments, the adjusting device 100 includes: a second transmission part 50 disposed at the rear end of the adjusting device 100 in the length direction, and including a third transmission mechanism 51 and a fourth transmission mechanism 52 respectively located on both sides in the width direction; wherein, the third transmission mechanism 51 is movably connected to the first base plate 11 and the first frame 21 respectively, the fourth transmission mechanism 52 is movably connected to the second base plate 12 and the second frame 22 respectively, and the third transmission mechanism 51 and the fourth transmission mechanism 52 are fixedly connected by a first connecting pipe 53 to move synchronously.

[0050] It is understood that the second transmission unit 50 can primarily provide height and angle adjustment for the rear end of the seat, making the adjustment device more flexible and improving the comfort of the seat, etc. In addition, given that the rear end adjustment mechanism of a certain comparative solution suffers from uneven collision deformation and failure due to the locking component on one side during seat belt anchor point tests and frontal collisions, the first connecting pipe 53 is used to fix the third transmission mechanism 51 and the fourth transmission mechanism 52, which improves the structural strength and makes the collision deformation on both sides more balanced. It also has a cost advantage compared to the solution with locking components on both sides.

[0051] like Figure 3 , Figure 4As shown, in one or more embodiments, the drive unit 30 includes: a motor bracket 31, a motor 32, a first gear set 33, a first lead screw and nut mechanism 34, a second gear set 35, and a second lead screw and nut mechanism 36; the motor bracket 31 is arranged along the width direction; the motor 32 is fixedly connected to the middle of the motor bracket 31; the first gear set 33 and the second gear set 35 are driven by the motor 32 and are respectively fixedly connected to the two ends of the motor bracket 31; the first gear set 33 is rotatably connected to the first base plate 11, and the second gear set 35 is... The two gear sets 35 are rotatably connected to the second base plate 12; under the drive of the motor 32, the first gear set 33 can drive the nut of the first lead screw and nut mechanism 34 to rotate and drive the lead screw to move along the length direction, and the second gear set 35 can drive the nut of the second lead screw and nut mechanism 36 to rotate and drive the lead screw to move along the length direction; the front end of the first lead screw and nut mechanism 34 is rotatably connected to the first transmission mechanism 41, and the front end of the second lead screw and nut mechanism 36 is rotatably connected to the second transmission mechanism 42.

[0052] The first gear set 33 and the second gear set 35 do not refer to all their components being gears in the narrow sense, but rather to components that use the gear transmission principle for transmission. Specifically, the output shaft of the motor 32 can extend to both sides along the width direction, cooperating with the first gear set 33 and the second gear set 35 to transmit driving force; the first gear set 33 and the second gear set 35 respectively drive the nut components of the first lead screw nut mechanism 34 and the second lead screw nut mechanism 36 to rotate, and convert this into linear movement of the lead screw components of the first lead screw nut mechanism 34 and the second lead screw nut mechanism 36, thereby driving the transmission part to perform adjustment activities; the first gear set 33 and the second gear set 35 can be housed in a housing to form a gearbox, and are rotatably connected to the first base plate 11 and the second base plate 12 respectively. The drive part 30 has a simple and reliable structure, enabling stable adjustment and avoiding vibration, jumping, and dead noise problems.

[0053] like Figures 1 to 3 As shown, in one or more embodiments, the drive unit 30 includes: a first mounting plate 37 and a second mounting plate 38; the first mounting plate 37 is fixedly connected to the first base plate 11 and rotatably connected to the first gear set 33; the second mounting plate 38 is fixedly connected to the second base plate 12 and rotatably connected to the second gear set 35.

[0054] like Figures 1 to 4As shown, in one or more embodiments, the first transmission part 40 includes a second connecting pipe 45; the first transmission mechanism 41 and the second transmission mechanism 42 each include a first connecting rod 43, 43' and a second connecting rod 44, 44'; one end of the first connecting rod 43, 43' is rotatably connected to the drive part 30, and the other end is rotatably connected to the second connecting rod 44, 44'; the other end of the second connecting rod 44, 44' is rotatably connected to the frame part 20; the second connecting pipe 45 is rotatably connected between the first base plate 11 and the second base plate 12, and passes through the middle of the first connecting rod 43, 43', so that the first connecting rod 43, 43' can rotate relative to the base plate part 10. Specifically, the second connecting rod 44 and the second connecting rod 44' can also be connected by a third connecting pipe 46, and the first frame 21 and the second frame 22 can also be connected by a fourth connecting pipe 47.

[0055] like Figures 7 to 9 As shown, in one or more embodiments, the second transmission part 50 includes a fifth connecting pipe 55; the third transmission mechanism 51 and the fourth transmission mechanism 52 each include a third connecting rod 54 and 54'; the third connecting rods 54 and 54' are rotatably connected to the base part 10; the fifth connecting pipe 55 is rotatably connected between the first frame 21 and the second frame 22, and passes through the third connecting rods 54 and 54', so that the third connecting rods 54 and 54' can rotate relative to the frame part 20; optionally, as Figure 4 As shown, the first base plate 11 and the second base plate 12 are connected by a sixth connecting pipe 56; this provides a solution that easily achieves the height and angle of the rear end of the seat, and the structure is simple and reliable.

[0056] In one or more embodiments, the third transmission mechanism 51 or the fourth transmission mechanism 52 is provided with a locking member for locking its relative movement with the base portion 10. Using a locking member on one side of the third transmission mechanism 51 or the fourth transmission mechanism 52, while still satisfying the locking function of the second transmission portion 50, offers a cost advantage compared to having locking members on both sides.

[0057] refer to Figure 5 , Figure 6 The operation of the adjusting device 100 is as follows:

[0058] The motor 32 drives the first gear set 33, the first lead screw and nut mechanism 34, the second gear set 35, and the second lead screw and nut mechanism 36, causing the lead screw components of the first lead screw and nut mechanism 34 and the second lead screw and nut mechanism 36 to move linearly; for example Figure 5As shown, when the lead screw moves backward, it drives the first connecting rod 43 to rotate around the second connecting pipe 45 and drives the second connecting rod 44 to rotate, thereby bringing the frame part 20 and the base part 10 closer together to achieve height and angle adjustment; Figure 6 As shown, when the lead screw moves forward, it drives the first connecting rod 43 to rotate around the second connecting pipe 45 and drives the second connecting rod 44 to rotate, thereby causing the frame part 20 and the base part 10 to move away from each other to achieve height and angle adjustment. The adjustment device 100 is used for seat height and angle adjustment, enabling the seat to adapt to the user's ideal sitting posture, such as achieving a "zero gravity mode".

[0059] According to another aspect of this application, a seat includes the adjustment device 100 described in the above embodiments.

[0060] In one or more embodiments, the seat further includes a leg rest disposed in the front space of the first transmission section 40. The addition of the leg rest further enhances the comfort of the seat.

[0061] In one or more embodiments, the seat is an ABTS (Integrated Seat Belt and Seat Belt) seat. This design, which secures the seat belt retractor to the seat, provides a more effective seat belt restraint at different seat heights and angles, offering better protection for the user compared to traditional solutions that place the seat belt retractor in other locations.

[0062] According to another aspect of this application, a means of transportation includes the regulating device 100 described in the above embodiments.

[0063] In summary, the advanced technical effects of this application include, but are not limited to, at least one of the following:

[0064] 1. The structure adopts a layout in which the first base plate, the second base plate, the first frame, the second frame, the first transmission mechanism, and the second transmission mechanism are all distributed on both sides in the width direction, and the first transmission mechanism and the second transmission mechanism are driven synchronously by the same drive unit. This results in good structural rigidity and ensures that the adjustment device maintains balanced and stable adjustment on both sides, without vibration, jumping, or dead noise. It can also maintain balanced deformation on both sides during a collision and withstand high-energy impacts, especially for seats with integrated seat belts where the seat belt retractor is located in the seat, preventing the seat from failing due to impact after a collision. In addition, the arrangement of placing the drive unit on the rear side of the first transmission unit creates a larger space on the front side of the drive unit, further achieving a compact design.

[0065] 2. The second transmission unit is mainly used to provide adjustment of the rear end of the seat, making the seat adjustment more flexible and improving the seat comfort. In addition, given that the rear end adjustment mechanism of a certain comparative solution fails in the seat belt fixing point test and frontal collision due to uneven collision deformation caused by the locking component on one side, the connecting tube is used to fix the third transmission mechanism and the fourth transmission mechanism, which improves the structural strength, makes the collision deformation on both sides more balanced, and has a cost advantage compared to the solution with locking components on both sides.

[0066] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. An adjusting device (100), characterized in that, include: The base portion (10) includes a first base plate (11) and a second base plate (12) located on both sides in the width direction; The frame section (20) includes a first frame (21) and a second frame (22) located on both sides in the width direction; A drive unit (30) is disposed between the first base plate (11) and the second base plate (12) in the width direction for providing driving force; The first transmission unit (40) includes a first transmission mechanism (41) and a second transmission mechanism (42) located on both sides in the width direction; the first transmission mechanism (41) is movably connected to the first base plate (11) and the first frame (21), and the second transmission mechanism (42) is movably connected to the second base plate (12) and the second frame (22); the first transmission mechanism (41) and the second transmission mechanism (42) are driven by the same driving unit (30) so that the frame part (20) can move away from and closer to the base part (10) in the height direction; In the longitudinal direction, the first transmission part (40) is disposed at the front end of the adjustment device (100), and the drive part (30) is disposed at the rear side of the first transmission part (40).

2. The adjusting device (100) according to claim 1, characterized in that, Also includes: The second transmission unit (50) is provided at the rear end of the adjustment device (100) in the length direction and includes a third transmission mechanism (51) and a fourth transmission mechanism (52) located on both sides in the width direction. The third transmission mechanism (51) is movably connected to the first base plate (11) and the first frame (21), and the fourth transmission mechanism (52) is movably connected to the second base plate (12) and the second frame (22), and the third transmission mechanism (51) and the fourth transmission mechanism (52) are fixedly connected by the first connecting pipe (53) to move synchronously.

3. The adjusting device (100) according to claim 1, characterized in that, The drive unit (30) includes: a motor bracket (31), a motor (32), a first gear set (33), a first lead screw and nut mechanism (34), a second gear set (35), and a second lead screw and nut mechanism (36); The motor bracket (31) is arranged along the width direction; The motor (32) is fixedly connected to the middle of the motor bracket (31); The first gear set (33) and the second gear set (35) are driven by the motor (32) and are respectively fixedly connected to the two ends of the motor bracket (31); the first gear set (33) is rotatably connected to the first base plate (11) and the second gear set (35) is rotatably connected to the second base plate (12); Driven by the motor (32), the first gear set (33) can drive the nut of the first lead screw nut mechanism (34) to rotate and drive the lead screw to move along the length direction. The second gear set (35) can drive the nut of the second lead screw nut mechanism (36) to rotate and drive the lead screw to move along the length direction. The front end of the first lead screw nut mechanism (34) is rotatably connected to the first transmission mechanism (41), and the front end of the second lead screw nut mechanism (36) is rotatably connected to the second transmission mechanism (42).

4. The adjusting device (100) according to claim 3, characterized in that, The drive unit (30) includes: a first mounting plate (37) and a second mounting plate (38); The first mounting plate (37) is fixedly connected to the first base plate (11) and rotatably connected to the first gear set (33); the second mounting plate (38) is fixedly connected to the second base plate (12) and rotatably connected to the second gear set (35).

5. The adjusting device (100) according to claim 1, characterized in that, The first transmission part (40) includes: a second connecting pipe (45); the first transmission mechanism (41) and the second transmission mechanism (42) each include: a first connecting rod (43, 43') and a second connecting rod (44, 44'); One end of the first connecting rod (43, 43') is rotatably connected to the drive unit (30), and the other end is rotatably connected to the second connecting rod (44, 44'); The other end of the second link (44, 44') is rotatably connected to the frame part (20); The second connecting pipe (45) is rotatably connected between the first base plate (11) and the second base plate (12), and passes through the middle of the first connecting rod (43, 43'), so that the first connecting rod (43, 43') can rotate relative to the base plate (10).

6. The adjusting device (100) according to claim 2, characterized in that, The second transmission unit (50) includes: a fifth connecting pipe (55); the third transmission mechanism (51) and the fourth transmission mechanism (52) both include: a third connecting rod (54, 54'); The third connecting rods (54, 54') are rotatably connected to the base portion (10); The fifth connecting pipe (55) is rotatably connected between the first frame (21) and the second frame (22), and passes through the third connecting rod (54, 54'), so that the third connecting rod (54, 54') can rotate relative to the frame part (20).

7. The adjusting device (100) according to claim 2, characterized in that, The third transmission mechanism (51) or the fourth transmission mechanism (52) is provided with a locking component for locking its relative movement with respect to the base portion (10).

8. A type of seat, characterized in that, Includes the regulating device (100) as described in any one of claims 1 to 7.

9. The seat according to claim 8, characterized in that, It also includes a leg rest, which is disposed in the front space of the drive unit (30).

10. A means of transportation, characterized in that, Includes the seat as described in claim 8 or 9.

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