Automobile seat leg support adjusting and supporting structure and method

Abstract

The invention provides an automobile seat leg support adjusting and supporting structure and method, and relates to the technical field of automobile seat leg support adjusting.The adjusting and supporting structure comprises a leg support fixing support, a leg support telescopic upper plate, a fixing hook, elastic cloth, skin, a first power device and a second power device; the leg support foam and the skin are supported and fixed through the leg support fixing support, the leg support telescopic upper plate and the fixing device, it is guaranteed that the protective face is flat in the leg support telescopic process, and the first power device drives the leg support telescopic upper plate to rotate to achieve angle adjustment. The second power device drives the leg support telescopic upper plate to move in the direction away from the leg support fixing support to achieve extension distance adjustment, when the leg support stretches out and the elastic cloth is in a stretching state, the elastic cloth and the fixing hooks form tension duality, a leg support skin is smooth, and wrinkles are avoided. The technical problems that when an existing seat leg support is opened and closed, wrinkles are prone to being accumulated, and the angle distance adjusting range is limited are solved.

Description

Technical Field

[0001] The invention relates to the technical field of adjusting a leg support of an automobile seat, and in particular to an adjusting support structure and a method for a leg support of an automobile seat. Background Art

[0002] In the design of the leg rest support structure of existing car seats, the skin of the front part of the seat cushion is prone to accumulate wrinkles when opening and closing the leg rest, which may affect the aesthetics of the seat and the riding comfort. The process of dealing with wrinkles is difficult, which affects the user experience of the product. The adjustable leg rest support structure is usually more complex in design, which leads to increased manufacturing costs, and is more prone to mechanical failure or wear after long-term use, which increases the difficulty and cost of subsequent maintenance. In addition, although the leg rest design is intended to accommodate the differences in leg lengths of different occupants, many existing designs may have a limited adjustment range and cannot meet the needs of all users. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a car seat leg support adjustment support structure and method.

[0004] A car seat leg support adjustment support structure comprises: a leg support fixing bracket and a telescopic upper plate of the leg support, the leg support fixing bracket and the telescopic upper plate of the leg support are hinged, a seat cushion foam is arranged on the leg support fixing bracket, a leg support foam is arranged on the telescopic upper plate of the leg support, a skin is arranged on the seat cushion foam and the leg support foam, a fixing hook is arranged at the hinge of the leg support fixing bracket and the telescopic upper plate of the leg support, the skin is hung with the fixing hook, the skin on the leg support foam is also connected with an elastic cloth, a hanging point is also arranged on the telescopic upper plate of the leg support, the elastic cloth is hung on the hanging point, fixing devices are arranged on both sides of the telescopic upper plate of the leg support, the fixing devices are connected with the skin, the adjustment support structure also comprises a first power device and a second power device, the fixed installation end of the first power device is located on the leg support fixing bracket, the power output end of the first power device is hinged with the telescopic upper plate of the leg support, and the power output end of the second power device is connected with the telescopic upper plate of the leg support.

[0005] Furthermore, the first power device includes a driving unit and a connecting rod group, and a fixed frame is also provided on the leg rest fixing bracket, a fixed rotating shaft is provided at one end of the fixed frame close to the telescopic upper plate of the leg rest, and a fixed shaft is provided at the other end of the fixed frame, one end of the connecting rod group is hinged to the fixed rotating shaft and the fixed shaft, and the other end of the connecting rod group is hinged to the telescopic upper plate of the leg rest, and the connecting rod group is connected to the driving end of the driving unit.

[0006] Furthermore, the connecting rod group includes a first rotating arm and a second rotating arm which are hingedly arranged in sequence, the first rotating arm is hingedly connected to the fixed shaft, and one end of the second rotating arm away from the first rotating arm is hingedly connected to the telescopic upper plate of the leg support.

[0007] Furthermore, the connecting rod group also includes a third rotating arm and a fourth rotating arm which are hinged in sequence, the third rotating arm is connected to the driving end of the driving unit, one end of the third rotating arm away from the fourth rotating arm is hinged to the fixed rotating shaft, one end of the fourth rotating arm away from the third rotating arm is hinged to the telescopic upper plate of the leg support, and the second rotating arm is hinged to the third rotating arm.

[0008] Furthermore, the drive unit includes a first motor, a first lead screw, a drive connecting rod and a U-shaped bend pipe, the power output end of the first motor is threadedly connected to the first lead screw, the first lead screw is hinged to one end of the drive connecting rod, the other end of the drive connecting rod is connected to the U-shaped bend pipe, and the U-shaped bend pipe is connected to the third rotating arm.

[0009] Furthermore, the adjustable support structure also includes a telescopic lower plate of the leg support, which is arranged between the telescopic upper plate of the leg support and the connecting rod group, the telescopic lower plate of the leg support is slidably connected to the telescopic upper plate of the leg support, and the telescopic lower plate of the leg support is hinged to the connecting rod group.

[0010] Furthermore, the suspension point is a steel wire, which is arranged on the telescopic upper plate of the leg support, and the elastic fabric is hung on the steel wire.

[0011] Furthermore, the fixing device is a fixed baffle, which is arranged on both sides of the telescopic upper plate of the leg support, and the fixed baffle is connected to the skin.

[0012] Furthermore, the second power device includes a second motor and a second screw rod, the second motor is arranged on the telescopic lower plate of the leg support, the power output end of the second motor is threadedly connected to the second screw rod, and the second screw rod is connected to the telescopic upper plate of the leg support.

[0013] The present invention also includes a method for adjusting and supporting a leg rest of a car seat, which is implemented based on an adjusting and supporting structure of a leg rest of a car seat as described in any of the above items, wherein a first power device drives the telescopic upper plate of the leg rest to rotate to achieve angle adjustment, and a second power device drives the telescopic upper plate of the leg rest to move in a direction away from the leg rest fixed bracket to achieve extension distance adjustment.

[0014] The technical solution of the present invention has the following advantages: In the technical solution provided by the present invention, the leg rest foam and skin are supported and fixed by a leg rest fixing bracket, a leg rest telescopic upper plate and a fixing device to ensure that the surface is flat during the extension and retraction of the leg rest. The first power device drives the telescopic upper plate of the leg rest to rotate to adjust the angle. The second power device drives the telescopic upper plate of the leg rest to move away from the leg rest fixing bracket to adjust the extension distance. At the same time, the skin is hung with a fixing hook, and the skin is connected with an elastic cloth. When the elastic cloth is in a stretched state after the leg rest is extended, the elastic cloth and the fixing hook form a tensile duality, so that the leg rest skin is smooth and wrinkles are avoided. This structure can be applied to the front driver and co-driver seats of a car, as well as to the second or third row of seats in a car, and the adjustment of multi-posture zero-gravity seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the fixing hook and seat cushion structure of the present invention; Figure 3 It is a schematic diagram of the connecting rod assembly, the telescopic upper plate of the leg support and the steel wire structure of the present invention; Figure 4 It is a schematic diagram of the positional relationship of the connecting rod assembly, the telescopic upper plate of the leg support, the steel wire and the elastic cloth of the present invention; Figure 5 It is a schematic diagram of the structure of the present invention when the angle is unfolded; Figure 6 It is a schematic diagram of the structure of the present invention when the angle is expanded and the length is extended; Figure 7 It is a schematic diagram of the structural composition of the connecting rod group of the present invention.

[0017] Description of reference numerals: 1-leg support fixing bracket; 2-first screw; 3-driving connecting rod; 4-connecting rod group; 5-leg support telescopic lower plate; 6-second screw; 7-leg support telescopic upper plate; 8-left baffle plate; 9-right baffle plate; 10-fixing hook; 11-steel wire; 12-elastic cloth; 13-fixed rotating shaft; 14-fixed shaft; 15-first rotating arm; 16-second rotating arm; 17-third rotating arm; 18-fourth rotating arm; 19-seat cushion foaming; 20-U-shaped bend pipe. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figure 1~Figure 4 The shown car seat leg support adjustment support structure comprises: a leg support fixing bracket 1 and a leg support telescopic upper plate 7, wherein the leg support fixing bracket 1 and the leg support telescopic upper plate 7 are hinged, a seat cushion foam 19 is arranged on the leg support fixing bracket 1, and a leg support foam is arranged on the leg support telescopic upper plate 7, both the seat cushion foam 19 and the leg support foam are provided with a skin, a fixing hook 10 is arranged at the hinge of the leg support fixing bracket 1 and the leg support telescopic upper plate 7, the skin is hung with the fixing hook 10, the skin on the leg support foam is also connected with an elastic cloth 12, a hanging point is also arranged on the leg support telescopic upper plate 7, the elastic cloth 12 is hung on the hanging point, fixing devices are arranged on both sides of the leg support telescopic upper plate 7, the fixing devices are connected with the skin, the adjustment support structure also comprises a first power device and a second power device, the fixed installation end of the first power device is located on the leg support fixing bracket 1, the power output end of the first power device is hinged with the leg support telescopic upper plate 7, and the power output end of the second power device is connected with the leg support telescopic upper plate 7.

[0023] The above-mentioned car seat leg rest adjustment support structure supports and fixes the leg rest foam and skin through the leg rest fixing bracket 1, the leg rest telescopic upper plate 7 and the fixing device, ensuring that the surface is flat during the leg rest extension and retraction process. The first power device drives the leg rest telescopic upper plate 7 to rotate to adjust the angle, and the second power device drives the leg rest telescopic upper plate 7 to move away from the leg rest fixing bracket 1 to adjust the extension distance. At the same time, the skin is hung with the fixing hook 10, and the skin is connected with the elastic fabric 12. When the elastic fabric 12 is in a stretched state after the leg rest is extended, the elastic fabric 12 and the fixing hook 10 form a tensile duality, so that the leg rest skin is smooth and avoids wrinkles. This structure can be applied to the front driver and co-driver seats of the car, and can also be applied to the second or third row of seats of the car, as well as the adjustment of multi-posture zero-gravity seats.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7 As shown, in this embodiment, the first power device includes a driving unit and a connecting rod group 4, and a fixed frame is also provided on the leg support fixing bracket 1, and a fixed rotating shaft 13 is provided at one end of the fixed frame close to the telescopic upper plate 7 of the leg support, and a fixed shaft 14 is provided at the other end of the fixed frame, one end of the connecting rod group 4 is hinged to the fixed rotating shaft 13 and the fixed shaft 14, and the other end of the connecting rod group 4 is hinged to the telescopic upper plate 7 of the leg support, and the connecting rod group 4 is connected to the driving end of the driving unit; the connecting rod group 4 includes a first rotating arm 15 and a second rotating arm 16 which are hingedly arranged in sequence, the first rotating arm 15 is hinged to the fixed shaft 14, and the end of the second rotating arm 16 away from the first rotating arm 15 is hinged to the telescopic upper plate 7 of the leg support; the connecting rod group 4 also includes a third rotating arm 17 and a fourth rotating arm 18 which are hingedly arranged in sequence, the third rotating arm 17 is connected to the driving end of the driving unit, and the end of the third rotating arm 17 away from the fourth rotating arm 18 is hinged to the fixed rotating shaft 13 The fourth rotating arm 18 is hinged at one end away from the third rotating arm 17 and is hinged to the telescopic upper plate 7 of the leg support, and the second rotating arm 16 is hinged to the third rotating arm 17; the driving unit includes a first motor, a first screw 2, a driving connecting rod 3 and a U-shaped bent pipe 20, the power output end of the first motor is threadedly connected to the first screw 2, the first screw 2 is hinged to one end of the driving connecting rod 3, the other end of the driving connecting rod 3 is connected to the U-shaped bent pipe 20, and the U-shaped bent pipe 20 is connected to the third rotating arm 17; the adjusting support structure also includes a telescopic lower plate 5 for the leg support, which is arranged between the telescopic upper plate 7 for the leg support and the connecting rod group 4, the telescopic lower plate 5 for the leg support is slidably connected to the telescopic upper plate 7 for the leg support, and the telescopic lower plate 5 for the leg support is hinged to the connecting rod group 4; the principle process of the first power device during the angle adjustment process is as follows: start the first motor to drive the first screw 2 to move in the direction close to the driving connecting rod 3, so that the first screw 2 drives the driving connecting rod 3 according to Figure 7In the state shown, the driving connecting rod 3 rotates clockwise. Since the driving connecting rod 3 is connected to the U-shaped bending pipe 20, and the U-shaped bending pipe 20 is connected to the third rotating arm 17, the driving connecting rod 3 rotates clockwise according to Figure 7 When rotating clockwise in the shown state, the third rotating arm 17 also rotates clockwise, thereby driving the first rotating arm 15 to rotate clockwise at the same time, and correspondingly, the second rotating arm 16 and the fourth rotating arm 18 push the telescopic lower plate 5 of the leg rest and the telescopic upper plate 7 of the leg rest to move away from the first screw 2, thereby realizing the angle adjustment of the leg rest. In addition, the connecting rod group 4 is arranged in pairs, so that the U-shaped bend pipe 20 can simultaneously drive the two groups of connecting rod groups 4 to adjust the angle of the leg rest more smoothly.

[0025] like Figure 1~Figure 4 As shown, in this embodiment, the suspension point is a steel wire 11, which is arranged on the telescopic upper plate 7 of the leg support, and the elastic cloth 12 is hung on the steel wire 11; the fixing device is a fixed baffle, which is arranged on both sides of the telescopic upper plate 7 of the leg support, and the fixed baffle is connected to the skin; when the elastic cloth 12 is in a stretched state after the leg support is extended, the elastic cloth 12 and the fixed hook 10 form a tension duality, so that the leg support skin is smooth to avoid wrinkles; the fixed baffle specifically includes a left baffle 8 and a right baffle 9, and the left baffle 8 and the right baffle 9 are correspondingly arranged on both sides of the telescopic upper plate 7 of the leg support. , used to connect and fix with the skin and leg support foam to ensure the flat surface during the extension and retraction of the leg support. When the leg support is unfolded, the connecting rod group 4 is in a fully expanded state, the leg support retractable upper plate 7 extends to the front end, the elastic cloth 12 is in a stretched state, and the skin at the connection between the leg support and the seat cushion is hung on the fixing hook 10, thereby eliminating the wrinkles between the leg support and the seat cushion; during the extension and retraction of the leg support, a tension duality is formed between the elastic cloth 12 and the fixing hook 10, so that the leg support skin is smooth to avoid wrinkle defects. When the leg support is unfolded and retracted, the left baffle 8 and the right baffle 9 move with the mechanism.

[0026] like Figure 1~Figure 4 As shown, in this embodiment, the second power device includes a second motor and a second screw rod 6, the second motor is arranged on the telescopic lower plate 5 of the leg support, the power output end of the second motor is threadedly connected to the second screw rod 6, the second screw rod 6 is connected to the telescopic upper plate 7 of the leg support, and the principle process of the second power device for adjusting the extension length is as follows: start the second motor, the second motor drives the second screw rod 6 to move away from the leg support fixed bracket 1, and the second screw rod 6 is connected to the telescopic upper plate 7 of the leg support, the telescopic lower plate 5 of the leg support is slidably connected to the telescopic upper plate 7 of the leg support, so the second screw rod 6 drives the telescopic upper plate 7 of the leg support to move away from the leg support fixed bracket 1 to achieve the extension distance adjustment.

[0027] like Figure 1 to Figure 7As shown, the present invention also includes a method for adjusting the support of a leg rest of a car seat, which is implemented based on the support structure of the leg rest of a car seat as described in any one of the above items, wherein the first power device drives the telescopic upper plate 7 of the leg rest to rotate to adjust the angle, and the second power device drives the telescopic upper plate 7 of the leg rest to move in a direction away from the leg rest fixing bracket 1 to adjust the extension distance; Specifically, the first motor is started to drive the first lead screw 2 to move toward the driving connecting rod 3, so that the first lead screw 2 drives the driving connecting rod 3 to move in a direction close to the driving connecting rod 3. Figure 7 In the state shown, the driving connecting rod 3 rotates clockwise. Since the driving connecting rod 3 is connected to the U-shaped bending pipe 20, and the U-shaped bending pipe 20 is connected to the third rotating arm 17, the driving connecting rod 3 rotates clockwise according to Figure 7 When the third rotating arm 17 rotates clockwise in the state shown, the third rotating arm 17 also rotates clockwise, thereby driving the first rotating arm 15 to rotate clockwise at the same time, and correspondingly, the second rotating arm 16 and the fourth rotating arm 18 push the telescopic lower plate 5 of the leg support and the telescopic upper plate 7 of the leg support to move in the direction away from the first screw 2, thereby realizing the angle adjustment of the leg support; starting the second motor, the second motor drives the second screw rod 6 to move in the direction away from the leg support fixed bracket 1, and the second screw rod 6 is connected to the telescopic upper plate 7 of the leg support, and the telescopic lower plate 5 of the leg support is slidably connected to the telescopic upper plate 7 of the leg support, so the second screw rod 6 drives the telescopic upper plate 7 of the leg support to move in the direction away from the leg support fixed bracket 1 to realize the extension distance adjustment; The manufacturing of the present invention is a seat assembly, the leg support mechanism is assembled at the lower front end of the seat cushion, the frame and the motion components, the motor and the transmission connecting rod and other mechanisms are fixed first, and then the foaming and the skin are assembled, the upper end of the skin is fixed to the fixing hook 10 through the clamping strip, and the elastic fabric of the lower end of the skin is hung on the steel wire 11 through the clamping strip, and the skins on both sides cover the left baffle 8 and the right baffle 9, and the assembly process can be completed on the whole chair assembly line; The above-mentioned car seat leg rest adjustment and support method can realize four-way functional adjustment of the leg rest, namely, opening angle adjustment and telescopic length adjustment. The maximum opening angle can reach 70°, and the maximum length can be extended by 50mm; and in the leg rest adjustment process, the foam and the skin slide on the telescopic upper plate 7 of the leg rest, and the elastic cloth 12 is telescopic to realize the delivery function, thereby avoiding defects such as accumulation of wrinkles and poor appearance of the skin after folding; and the maximum extension length can be extended to 80mm according to needs; at this time, if the telescopic deformation of the elastic cloth 12 is too large, the steel wire 11 can be replaced with an elastic torsion form to compensate for the telescopic delivery of the skin. The present application has a simple structure and is easy to operate. It can be applied to the front main and co-pilot seats of the car, as well as the second or third row seats of the car, and multi-posture zero-gravity seats, and can be adjusted and used with the functions to provide comfort and convenience for the passengers.

[0028] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A car seat leg support adjustment support structure, comprising: The leg support fixing bracket (1) and the leg support telescopic upper plate (7) are characterized in that the leg support fixing bracket (1) and the leg support telescopic upper plate (7) are hinged, a seat cushion foam (19) is arranged on the leg support fixing bracket (1), a leg support foam is arranged on the leg support telescopic upper plate (7), a skin is arranged on the seat cushion foam (19) and the leg support foam, a fixing hook (10) is arranged at the hinge of the leg support fixing bracket (1) and the leg support telescopic upper plate (7), the skin is hung on the fixing hook (10), and the skin on the leg support foam is also connected to The elastic cloth (12) is provided with a suspension point on the telescopic upper plate (7) of the leg support, and the elastic cloth (12) is hung on the suspension point. Fixing devices are provided on both sides of the telescopic upper plate (7) of the leg support, and the fixing devices are connected to the skin. The adjustment support structure also includes a first power device and a second power device. The fixed installation end of the first power device is located on the leg support fixing bracket (1), the power output end of the first power device is hinged to the telescopic upper plate (7) of the leg support, and the power output end of the second power device is connected to the telescopic upper plate (7) of the leg support.

2. The car seat leg support adjustment support structure according to claim 1, characterized in that: The first power device comprises a driving unit and a connecting rod group (4); a fixed frame is also provided on the leg support fixing bracket (1); a fixed rotating shaft (13) is provided at one end of the fixed frame close to the telescopic upper plate (7) of the leg support; a fixed shaft (14) is provided at the other end of the fixed frame; one end of the connecting rod group (4) is hinged to the fixed rotating shaft (13) and the fixed shaft (14); the other end of the connecting rod group (4) is hinged to the telescopic upper plate (7) of the leg support; and the connecting rod group (4) is connected to the driving end of the driving unit.

3. The car seat leg support adjustment support structure according to claim 2, characterized in that: The connecting rod group (4) comprises a first rotating arm (15) and a second rotating arm (16) which are hingedly arranged in sequence, the first rotating arm (15) being hingedly connected to the fixed shaft (14), and an end of the second rotating arm (16) away from the first rotating arm (15) being hingedly connected to the telescopic upper plate (7) of the leg support.

4. The car seat leg support adjustment support structure according to claim 3, characterized in that: The connecting rod group (4) further comprises a third rotating arm (17) and a fourth rotating arm (18) which are hingedly arranged in sequence, the third rotating arm (17) being connected to the driving end of the driving unit, one end of the third rotating arm (17) away from the fourth rotating arm (18) being hingedly connected to the fixed rotating shaft (13), one end of the fourth rotating arm (18) away from the third rotating arm (17) being hingedly connected to the telescopic upper plate (7) of the leg support, and the second rotating arm (16) being hingedly connected to the third rotating arm (17).

5. The car seat leg support adjustment support structure according to claim 4, characterized in that: The drive unit comprises a first motor, a first lead screw (2), a drive connecting rod (3) and a U-shaped curved pipe (20); the power output end of the first motor is threadedly connected to the first lead screw (2); the first lead screw (2) is hinged to one end of the drive connecting rod (3); the other end of the drive connecting rod (3) is connected to the U-shaped curved pipe (20); and the U-shaped curved pipe (20) is connected to the third rotating arm (17).

6. The vehicle seat leg support adjustment support structure according to claim 2, characterized in that: The adjustable support structure further comprises a telescopic lower plate (5) for a leg support, the telescopic lower plate (5) for a leg support being arranged between the telescopic upper plate (7) for a leg support and the connecting rod group (4), the telescopic lower plate (5) for a leg support being slidably connected to the telescopic upper plate (7) for a leg support, and the telescopic lower plate (5) for a leg support being hinged to the connecting rod group (4).

7. The vehicle seat leg support adjustment support structure according to claim 1, characterized in that: The suspension point is a steel wire (11), which is arranged on the telescopic upper plate (7) of the leg support, and the elastic fabric (12) is hung on the steel wire (11).

8. The vehicle seat leg support adjustment support structure according to claim 1, characterized in that: The fixing device is a fixed baffle, which is arranged on both sides of the telescopic upper plate (7) of the leg support, and the fixed baffle is connected to the skin.

9. The vehicle seat leg support adjustment support structure according to claim 6, characterized in that: The second power device comprises a second motor and a second screw rod (6); the second motor is arranged on the telescopic lower plate (5) of the leg support; the power output end of the second motor is threadedly connected to the second screw rod (6); and the second screw rod (6) is connected to the telescopic upper plate (7) of the leg support.

10. A method for adjusting and supporting a leg support of a car seat, the method being implemented based on the adjusting and supporting structure of a leg support of a car seat according to any one of claims 1 to 9, characterized in that: The first power device drives the telescopic upper plate (7) of the leg support to rotate to achieve angle adjustment, and the second power device drives the telescopic upper plate (7) of the leg support to move in a direction away from the leg support fixed bracket (1) to achieve extension distance adjustment.

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