A seat integrated with a thigh support and calf support assembly

Abstract

The utility model discloses a seat integrated with thigh support and shank support assembly is provided with the thigh support assembly that can support the thigh in the position of seat relative to the thigh, be equipped with the first drive structure that can drive the sliding of thigh support assembly on the thigh support assembly, be equipped with the shank support assembly that can support the shank in the position of seat relative to the shank, be equipped with the second drive structure that can drive the angle adjustment of shank support assembly and the third drive structure that can drive the sliding of shank support assembly on the shank support assembly. The utility model discloses through the linkage cooperation of thigh support assembly and shank support assembly, can realize six -way adjustment, to form scientific segmented support to the leg, realized the collaborative force of different area of leg, and the structure of shank support assembly is relatively simple, and the rigidity is higher, and the leg support surface cover can keep the tightness unchanged when the length adjustment of shank support assembly.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seats, specifically relating to a seat that integrates a thigh support and a calf support assembly. Background Technology

[0002] Currently, most existing leg support structures for car seats are four-way leg supports, meaning that when unfolded, their length can be adjusted along the length of the lower leg to support the occupant's lower leg. When not in use, the leg support structure can be retracted. For example, patent number "2024226809986," titled "A Four-Way Leg Support with a Multi-Link Mechanism," describes a leg support structure comprising a linkage assembly consisting of eight links and a drive assembly 1 for driving the linkage assembly. The linkage assemblies on both sides are rotatably connected to a support platform. A horizontally arranged slide and a drive assembly 2 are provided between the support platform and the pedal. The drive assembly 1 drives the linkage assembly to unfold or retract the support platform and pedal, while the drive assembly 2 drives the pedal to slide up and down relative to the support platform along the horizontal slide. However, this patent has the following problems:

[0003] 1. The linkage assembly has a complicated structure, and the slide between the support platform and the pedal is arranged horizontally, so the rigidity of the leg support structure is weak.

[0004] 2. The steel wire used to attach the leg support cover of this leg support structure is connected between the sixth link on both sides. Therefore, the leg support cover will tighten or loosen as the pedal extends or retracts. When the pedal moves upward, the cover is in a loose state and wrinkles are likely to appear. When the pedal moves downward, the cover will gradually tighten and creases will appear, which will reduce the aesthetic appearance of the leg support structure.

[0005] 3. The leg rest structure only has four-way adjustment for up and down movement and unfolding and retracting. It cannot be adjusted according to the thigh length of different drivers and passengers, nor can it provide support for the thighs. Therefore, people with shorter thighs need to adjust their sitting posture forward to adapt to the leg rest structure, while people with longer thighs will have insufficient thigh support, concentrating the pressure on the buttocks and the root of the thigh. In addition, since there is no support for the front of the thigh, the knee joint is slightly suspended, which increases the stress on the knee joint. Utility Model Content

[0006] The purpose of this utility model is to solve the above-mentioned problems and provide a seat that integrates thigh support and calf support assemblies. The seat integrates thigh support and calf support assemblies on the seat frame. Through the linkage and cooperation of the thigh support and calf support assemblies, six-way adjustment can be achieved to form scientific segmented support for the legs, realizing coordinated force distribution in different areas of the legs. Moreover, the structure of the calf support assembly is relatively simple and has higher rigidity. The tightness of the leg support cover can remain unchanged when the length of the calf support assembly is adjusted.

[0007] To achieve the above objectives, this utility model provides a seat integrating a thigh support and a calf support assembly. The seat frame is provided with a thigh support assembly at the position relative to the thigh to support the thigh. The thigh support assembly is provided with a first drive structure that can drive the thigh support assembly to slide. The seat frame is provided with a calf support assembly at the position relative to the calf to support the calf. The calf support assembly is provided with a second drive structure that can drive the calf support assembly to adjust its angle and a third drive structure that can drive the calf support assembly to slide.

[0008] As a further optimization, the thigh support assembly includes an upper cover plate, which is slidably connected to a lower cover plate via a first slide rail. A left connector and a right connector are symmetrically arranged on the upper cover plate. The left connector and the right connector pass through the lower cover plate and are connected to a lead screw mounting plate. The lead screw mounting plate is connected to a driving part on a first driving structure. The first driving structure is connected to the lower cover plate. The thigh support assembly is connected to the seat frame via the lower cover plate.

[0009] As a further optimization, the first drive structure includes a first lead screw motor, which is connected to the lower cover plate via a first motor bracket. A lead screw support is threaded onto the lead screw of the first lead screw motor, and the lead screw support is engaged in a locking hole in the lead screw mounting plate.

[0010] As a further optimization, the lower leg support assembly includes an angle adjustment structure and a length adjustment structure. The lower leg support assembly is connected to the seat frame through the angle adjustment structure, and the angle adjustment structure is provided with a second drive structure that allows the angle adjustment structure to be adjusted. The angle adjustment structure is connected to the length adjustment structure through a linkage bracket structure, and the length adjustment structure is provided with a third drive structure that allows the length adjustment structure to slide.

[0011] As a further optimization, the angle adjustment structure includes two sets of linkage structures. Each linkage structure includes a leg support fixing bracket. A motor fixing front beam and a motor fixing rear beam are fixedly connected between the two leg support fixing brackets. Both leg support fixing brackets are rotatably connected to the ends of linkage A and linkage B. The other end of linkage A is rotatably connected to one end of linkage C. The middle part of linkage C is rotatably connected to the middle part of linkage B. A transmission rod is fixedly connected between the two linkages B. The other end of linkage B is rotatably connected to one end of linkage D. A stabilizing rod is fixedly connected between the two linkages D. The other ends of linkage C and linkage D are rotatably connected to the linkage bracket structure. The second drive structure is connected to the motor fixing front beam and the motor fixing rear beam. The drive part of the second drive structure is connected to the transmission rod.

[0012] As a further optimization, the second drive structure includes a second lead screw motor, which is connected to the front and rear fixed beams of the motor via a second motor bracket. The lead screw of the second lead screw motor is connected to the connecting rod transmission arm, and the connecting rod transmission arm is fixedly connected to the transmission rod.

[0013] As a further optimization, the linkage support structure includes a connecting bracket, the angle adjustment structure is connected to the linkage support structure through the connecting bracket, one end of the connecting bracket is rotatably connected to the first connecting arm, the other end of the first connecting arm is rotatably connected to the second connecting arm, the second connecting arm is rotatably connected to the connecting fixing seat, and the linkage support structure is connected to the length adjustment structure through the connecting bracket and the connecting fixing seat.

[0014] As a further optimization, the length adjustment structure includes a connecting plate, the opposite sides of which are connected to one end of a second slide rail, the other end of which is connected to a side baffle, a front baffle is provided between the two side baffles, and a third drive structure is provided between the front baffle and the connecting plate. The length adjustment structure is connected to the connecting rod support structure through the side baffle and the connecting plate.

[0015] As a further optimization, the third drive structure includes a third lead screw motor, which is connected to the connecting plate via a third motor bracket, and the lead screw of the third lead screw motor is connected to the front baffle via a lead screw connecting bracket.

[0016] Advantages and beneficial effects of this utility model

[0017] 1. This utility model integrates a thigh support assembly and a calf support assembly on the seat. Through the linkage and cooperation of the thigh support assembly and the calf support assembly, a scientific segmented support is formed for the legs, realizing the coordinated force distribution of different areas of the legs. This effectively disperses local pressure to a larger contact area, reducing physical fatigue and further optimizing the comfort experience during driving and riding, thus improving the overall riding quality.

[0018] 2. This utility model innovatively designs the length adjustment of the thigh support assembly and the angle and length adjustment of the calf support assembly, which can flexibly meet the needs of drivers and passengers in various scenarios such as driving and leisure. It can not only provide exclusive comfort support for drivers and passengers of different sizes, but also greatly enhance the applicability of the product.

[0019] 3. The connecting structure on both sides of the lower leg support assembly in this utility model is composed of six links, and the second slide rail is vertically arranged between the side baffle and the connecting plate, so the lower leg support assembly has stronger rigidity.

[0020] 4. The angle adjustment structure in this utility model is connected to the length adjustment structure through a connecting rod bracket structure. The added connecting rod bracket structure can be connected to the steel wire used to hang the leg support cover. When the length adjustment structure is adjusted, the steel wire will move accordingly, so that the tightness of the leg support cover remains unchanged when the length adjustment structure extends and retracts, thus improving the aesthetic appearance of the lower leg support assembly. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure provided in the embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the unfolded lower leg support assembly provided in this embodiment of the present invention;

[0024] Figure 3 This is an exploded view of the front of the thigh support assembly provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the reverse side of the thigh support assembly provided in this embodiment of the present utility model;

[0026] Figure 5 This is an exploded view of the reverse side of the thigh support assembly provided in this embodiment of the utility model;

[0027] Figure 6 This is an exploded view of the calf support assembly provided in this embodiment of the utility model;

[0028] Figure 7 This is a schematic diagram of the angle adjustment structure provided in an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the linkage support structure provided in this embodiment of the utility model;

[0030] Figure 9 This is a schematic diagram of the length adjustment structure provided in an embodiment of the present invention;

[0031] Figure 10 This is an exploded view of the length adjustment structure provided in this embodiment of the utility model.

[0032] Reference numerals: 1. Seat frame; 2. Thigh support assembly; 3. Upper cover plate; 4. First slide rail; 5. Lower cover plate; 6. Left connector; 7. Right connector; 8. Screw mounting plate; 9. First drive structure; 10. First screw motor; 11. First motor bracket; 12. Screw support seat; 13. Lower leg support assembly; 14. Angle adjustment structure; 15. Linkage structure; 16. Leg support fixing bracket; 17. Linkage A; 18. Linkage B; 19. Linkage C; 10. Linkage D; 10. Motor fixing front beam; 11. Motor fixing... The following components are included: rear beam 4013, transmission rod 4014, stabilizer rod 4015, length adjustment structure 402, connecting plate 4021, second slide rail 4022, side baffle 4023, front baffle 4024, connecting rod support structure 403, connecting bracket 4031, first connecting arm 4032, second connecting arm 4033, connecting fixing seat 4034, second drive structure 5, second lead screw motor 501, second motor bracket 502, connecting rod transmission arm 503, third drive structure 6, third lead screw motor 601, third motor bracket 602, and lead screw connecting bracket 603. Detailed Implementation

[0033] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein.

[0034] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] like Figure 1 and Figure 2As shown, a seat integrating thigh support and calf support assemblies includes a seat frame 1 with a thigh support assembly 2 positioned relative to the thigh for thigh support. The thigh support assembly 2 has a first drive structure 3 that can drive the thigh support assembly 2 to slide back and forth. The seat frame 1 has a calf support assembly 4 positioned relative to the calf for calf support. The calf support assembly 4 has a second drive structure 5 that can drive the calf support assembly 4 to adjust its angle and a third drive structure 6 that can drive the calf support assembly 4 to slide up and down. Through the coordinated operation of the thigh support assembly 2 and the calf support assembly 4, scientific segmented support can be formed for the legs, realizing coordinated force distribution in different areas of the legs, effectively dispersing local pressure to a larger contact area, reducing physical fatigue, further optimizing the comfort experience during driving and riding, and improving the overall riding quality.

[0036] like Figures 3-5 As shown, the thigh support assembly 2 includes an upper cover plate 201, which is connected to the upper slide rail of the first slide rail 202 by rivets. The lower slide rail of the first slide rail 202 is connected to the lower cover plate 203 by bolts and nuts. A left connecting piece 204 and a right connecting piece 205 are symmetrically connected to the upper cover plate 201 by rivets. The left connecting piece 204 and the right connecting piece 205 pass through the lower cover plate 203 through clearance holes and are connected to the lead screw mounting plate 206. The lead screw mounting plate 206 is connected to the driving part of the first driving structure 3. Specifically, the first driving structure 3 includes a first lead screw motor 301. The first lead screw motor 301 is screwed to the bottom of the lower cover plate 203 via the first motor bracket 302. The lead screw of the first lead screw motor 301 is threaded with a lead screw support 303, which is engaged in the locking hole of the lead screw mounting plate 206. The extension and retraction of the lead screw drives the lead screw mounting plate 206 to move back and forth. The left connecting piece 204 and the right connecting piece 205 drive the upper cover plate 201 to move back and forth relative to the lower cover plate 203 along the first slide rail 202, thereby adjusting the length of the thigh support assembly 2 according to the needs of the driver and passengers. The thigh support assembly 2 is connected to the seat frame 1 via the lower cover plate 203.

[0037] like Figure 6As shown, the calf support assembly 4 includes an angle adjustment structure 401 and a length adjustment structure 402. The calf support assembly 4 is connected to the seat frame 1 via the angle adjustment structure 401, and the angle adjustment structure 401 is provided with a second drive structure 5 that allows for angle adjustment. The angle adjustment structure 401 is connected to the length adjustment structure 402 via a linkage bracket structure 403. The linkage bracket structure 403 can be connected to a steel wire that holds the calf support cover. When the length adjustment structure is adjusted, the steel wire moves accordingly, thus keeping the calf support cover at a constant tightness as the length adjustment structure 402 extends and retracts, improving the aesthetic appearance of the calf support assembly 4. The length adjustment structure 402 is provided with a third drive structure 6 that allows the length adjustment structure 402 to slide up and down.

[0038] like Figure 6 and Figure 7 As shown, the angle adjustment structure 401 includes two sets of linkage structures 4011. Each linkage structure 4011 includes a leg support fixing bracket 40111. A motor fixing front beam 4012 and a motor fixing rear beam 4013 are fixedly connected between the two leg support fixing brackets 40111. One end of each of the two leg support fixing brackets 40111 is rotatably connected to a connecting rod A40112 and a connecting rod B40113 on its sidewall. The other end of connecting rod A40112 is rotatably connected to one end of connecting rod C40114. The middle of connecting rod C40114 is rotatably connected to the middle of connecting rod B40113. A transmission rod 4014 is fixedly connected between the two connecting rods B40113. The transmission rod 4014 increases the stability of the two linkage structures 4011 and can drive the two linkage structures 4011 to move synchronously. The other end of connecting rod B40113 is connected to a connecting rod D40115. One end is rotatably connected, and a stabilizing rod 4015 is fixed between the two connecting rods D40115. The stabilizing rod 4015 can increase the stability of the two connecting rods D40115. The other end of the connecting rod C40114 and the connecting rod D40115 is connected to the connecting rod support structure 403. The second drive structure 5 includes a second lead screw motor 501. The second lead screw motor 501 is connected to the motor fixing front beam 4012 and the motor fixing rear beam 4013 through the second motor bracket 502. The lead screw of the second lead screw motor 501 is connected to the connecting rod transmission arm 503 by bolts. The connecting rod transmission arm 503 is fixedly connected to the transmission rod 4014. Driven by the second lead screw motor 501, the transmission rod 4014 and the two connecting rods B40113 can be driven to rotate around the leg support fixing bracket 40111, thereby driving the lower leg support assembly 4 to unfold or retract through the connecting rod structure 4011 on both sides.

[0039] like Figure 6 and Figure 8As shown, the linkage support structure 403 includes a connecting bracket 4031. The angle adjustment structure 401 is rotatably connected to the connecting bracket 4031 through the ends of connecting rods C40114 and D40115. The front end of the connecting bracket 4031 is rotatably connected to the rear end of the first connecting arm 4032. The front end of the first connecting arm 4032 is rotatably connected to the rear end of the second connecting arm 4033. The middle part of the second connecting arm 4033 is rotatably connected to the lower end of the connecting fixing seat 4034. The front ends of the second connecting arms 4033 on both sides are connected to the steel wires for hanging the leg support face shield. The linkage support structure 403 is connected to the length adjustment structure 402 through the connecting bracket 4031 and the connecting fixing seat 4034. When the length adjustment structure 402 adjusts the length, the first connecting arm 4032 and the second connecting arm 4033 will unfold or retract with the length adjustment.

[0040] like Figure 6 , Figure 9 and Figure 10 As shown, the length adjustment structure 402 includes a connecting plate 4021. The left and right side walls of the connecting plate 4021 are connected to the inner slide rail of the vertically arranged second slide rail 4022 by bolts and nuts. The outer slide rail of the second slide rail 4022 is connected to the side baffle 4023 by rivets. A front baffle 4024 is connected between the two side baffles 4023 by rivets. A third driving structure 6 is provided between the front baffle 4024 and the connecting plate 4021. The third driving structure 6 includes a third lead screw motor 601. The third lead screw motor 601 is connected to the connecting plate 4021 by a third motor bracket 602. The lead screw of the third lead screw motor 601 is connected to the front baffle 4024 by a lead screw connecting bracket 603. Driven by the third lead screw motor 601, the front baffle 4024 and the left and right side baffles 4023 can slide up and down relative to the connecting plate 4021 along the second slide rail 4022. Since the connecting fixing seat 4034 on the linkage bracket structure 403 is connected to the side baffle 4023, and the connecting bracket 4031 is connected to the connecting plate 4021, when the front baffle 4024 drives the two side baffles 4023 to move up and down relative to the connecting plate 4021, the connecting fixing seat 4034 will also move up and down with the side baffles 4023. Therefore, the first connecting arm 4032 and the second connecting arm 4033 will unfold or retract as the length is adjusted. The first lead screw motor 301, the second lead screw motor 501 and the third lead screw motor 601 are connected to the seat wiring harness through the wiring harness to realize the transmission of power and signal. When the thigh support assembly 2 and the calf support assembly 4 need to be adjusted in length and / or angle, the suspension at any position can be achieved simply by controlling the start or stop of the lead screw motor.

[0041] Work process

[0042] Passengers can adjust the length of the thigh support assembly 2 and the unfolding angle and extension length of the calf support assembly 4 according to their individual needs.

[0043] When the passenger has long legs, the first lead screw motor 301 drives the lead screw to extend forward, causing the lead screw mounting plate 206, left connector 204, and right connector 205 to move forward. This causes the upper cover plate 201 to move forward along the first slide rail 202 relative to the lower cover plate 203. When the desired position is reached, the drive of the first lead screw motor 301 is stopped, allowing the thigh support assembly 2 to cover a longer thigh area and prevent the front of the thigh from being suspended. When resting, the lower leg support assembly 4 adjusts the angle between the lower leg and the thigh through the angle adjustment structure 401. Specifically, the second lead screw motor 501 drives the lead screw to move forward, causing the connecting rod transmission arm 503 and transmission rod 4014 to move forward. This, in turn, causes the connecting rod B40113 to rotate forward around the leg support fixing bracket 40111. Finally, the connecting rod structure 4011 causes the lower leg support assembly 4 to unfold to the angle required by the passenger, at which point the drive of the second lead screw motor 501 is stopped, allowing the angle adjustment structure to unfold. 401 is suspended, and then the support length of the lower leg is adjusted by the length adjustment structure 402. Specifically, the third lead screw motor 601 drives the lead screw to move downward, which drives the lead screw connecting bracket 603 and the front baffle 4024 to move downward. Finally, the side baffles 4023 on both sides move downward relative to the connecting plate 4021 along the second slide rail 4022. When the appropriate length is reached, the drive of the third lead screw motor 601 is stopped, so that the length adjustment structure 402 can cover a longer area of ​​the lower leg to support the entire lower leg.

[0044] When the person has short legs, the thigh support assembly 2 can be shortened backward to avoid hitting the knee joint, and the calf support assembly 4 can be extended to a certain angle and length according to the driver's wishes to support the entire calf.

[0045] This invention can be adapted to different sitting postures and scenarios.

[0046] 1. In work or driving scenarios, the torso is upright, the thigh support assembly 2 can be adjusted according to the thigh length of the driver or passenger, and the lower leg support assembly 4 is retracted and reset.

[0047] 2. In rest or leisure scenarios, the seat back rotates backward and the torso tilts backward. The thigh support assembly 2 can extend forward according to the torso tilt angle, and the calf support assembly 4 can unfold and extend as needed, allowing the calf to naturally lift up with the body tilting backward. This utility model, through the angle adjustment structure 401, allows the calf to be suspended at any position within the initial range of 90° to 168° relative to the thigh, thereby providing effective support for the legs through the coordinated force of the thigh support assembly 2 and the calf support assembly 4.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the present utility model.

Claims

1. A seat integrating a thigh support and a calf support assembly, characterized in that: A thigh support assembly (2) is provided on the seat frame (1) at the position relative to the thigh to support the thigh. The thigh support assembly (2) is provided with a first drive structure (3) that can drive the thigh support assembly (2) to slide. A calf support assembly (4) is provided on the seat frame (1) at the position relative to the lower leg to support the lower leg. The calf support assembly (4) is provided with a second drive structure (5) that can drive the calf support assembly (4) to adjust its angle and a third drive structure (6) that can drive the calf support assembly (4) to slide.

2. A seat integrating a thigh support and a calf support assembly according to claim 1, characterized in that: The thigh support assembly (2) includes an upper cover plate (201), which is slidably connected to a lower cover plate (203) via a first slide rail (202). A left connector (204) and a right connector (205) are symmetrically arranged on the upper cover plate (201). The left connector (204) and the right connector (205) pass through the lower cover plate (203) and are connected to a lead screw mounting plate (206). The lead screw mounting plate (206) is connected to a driving part on a first driving structure (3). The first driving structure (3) is connected to the lower cover plate (203). The thigh support assembly (2) is connected to the seat frame (1) via the lower cover plate (203).

3. A seat integrating a thigh support and a calf support assembly according to claim 2, characterized in that: The first drive structure (3) includes a first lead screw motor (301), which is connected to the lower cover plate (203) via a first motor bracket (302). A lead screw support seat (303) is threaded onto the lead screw of the first lead screw motor (301), and the lead screw support seat (303) is snapped into the snap hole of the lead screw mounting plate (206).

4. A seat integrating a thigh support and a calf support assembly according to claim 1, characterized in that: The lower leg support assembly (4) includes an angle adjustment structure (401) and a length adjustment structure (402). The lower leg support assembly (4) is connected to the seat frame (1) through the angle adjustment structure (401). The angle adjustment structure (401) is provided with a second drive structure (5) that allows the angle adjustment structure (401) to be adjusted. The angle adjustment structure (401) is connected to the length adjustment structure (402) through a linkage bracket structure (403). The length adjustment structure (402) is provided with a third drive structure (6) that allows the length adjustment structure (402) to slide.

5. A seat integrating a thigh support and a calf support assembly according to claim 4, characterized in that: The angle adjustment structure (401) includes two sets of linkage structures (4011). Each linkage structure (4011) includes a leg support fixing bracket (40111). A motor fixing front beam (4012) and a motor fixing rear beam (4013) are fixedly connected between the two leg support fixing brackets (40111). Both leg support fixing brackets (40111) are rotatably connected to the ends of linkage A (40112) and linkage B (40113). The other end of linkage A (40112) is rotatably connected to one end of linkage C (40114). The middle part of linkage C (40114) is connected to linkage B (40113). The middle part is rotatably connected, and a transmission rod (4014) is fixed between the two connecting rods B (40113). The other end of the connecting rod B (40113) is rotatably connected to one end of the connecting rod D (40115). A stabilizing rod (4015) is fixed between the two connecting rods D (40115). The other end of the connecting rod C (40114) and the connecting rod D (40115) is rotatably connected to the connecting rod support structure (403). The second drive structure (5) is connected to the motor fixed front beam (4012) and the motor fixed rear beam (4013). The drive part of the second drive structure (5) is connected to the transmission rod (4014).

6. A seat integrating a thigh support and a calf support assembly according to claim 5, characterized in that: The second drive structure (5) includes a second lead screw motor (501), which is connected to the front beam (4012) and the rear beam (4013) of the motor via a second motor bracket (502). The lead screw of the second lead screw motor (501) is connected to the connecting rod transmission arm (503), and the connecting rod transmission arm (503) is fixedly connected to the transmission rod (4014).

7. A seat integrating a thigh support and a calf support assembly according to claim 4, characterized in that: The linkage support structure (403) includes a connecting bracket (4031). The angle adjustment structure (401) is connected to the linkage support structure (403) through the connecting bracket (4031). The connecting bracket (4031) is rotatably connected to one end of the first connecting arm (4032). The other end of the first connecting arm (4032) is rotatably connected to the second connecting arm (4033). The second connecting arm (4033) is rotatably connected to the connecting fixing seat (4034). The linkage support structure (403) is connected to the length adjustment structure (402) through the connecting bracket (4031) and the connecting fixing seat (4034).

8. A seat integrating a thigh support and a calf support assembly according to claim 4, characterized in that: The length adjustment structure (402) includes a connecting plate (4021), with the opposite sides of the connecting plate (4021) connected to one end of the second slide rail (4022), and the other end of the second slide rail (4022) connected to the side baffle (4023). A front baffle (4024) is provided between the two side baffles (4023), and a third drive structure (6) is provided between the front baffle (4024) and the connecting plate (4021). The length adjustment structure (402) is connected to the connecting rod support structure (403) through the side baffle (4023) and the connecting plate (4021).

9. A seat integrating a thigh support and a calf support assembly according to claim 8, characterized in that: The third drive structure (6) includes a third lead screw motor (601), which is connected to the connecting plate (4021) via a third motor bracket (602). The lead screw of the third lead screw motor (601) is connected to the front baffle (4024) via a lead screw connecting bracket (603).

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