Six-direction adjusting leg support assembly and automobile with same

Abstract

The invention discloses a six-direction adjusting leg support assembly and an automobile with the same, and relates to the technical field of automobile seats. Comprising a leg support lifting mechanism, a leg support extension mechanism and a pedal turnover mechanism, the leg support lifting mechanism comprises a first driving unit, a rotating rod and a leg support unit, the rotating rod is arranged on the leg support unit in a penetrating mode, and the first driving unit drives the leg support unit to rotate around the rotating rod; the leg support extension mechanism comprises an extension framework and a second driving unit, the extension framework is mounted on the leg support unit in a linear sliding manner, and the second driving unit drives the extension framework to do linear reciprocating motion on the leg support unit; the pedal turnover mechanism comprises a third driving unit and a pedal, the pedal is rotationally connected to the extension framework, and the third driving unit drives the pedal to rotate on the extension framework. The method has the beneficial effect that the riding experience feeling of a driver and passengers can be enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, in particular to a six-way adjustable leg rest assembly and an automobile having the same. Background Art

[0002] As people's living standards improve, the demand for travel increases. As common means of travel, cars, high-speed trains, airplanes, etc., their comfort directly affects the quality of passengers' travel. As the first carrier of passengers, the comfort of seats directly affects the passengers' driving experience. Therefore, improving seat comfort has become a research focus. Currently, high-end vehicles all have electric seat adjustment functions, but they mainly focus on posture, especially the adjustment of the overall fore and aft and pitch angles, ignoring the needs of the driver and passengers' legs and failing to meet the riding experience of the driver and passengers. Therefore, it is necessary to develop a seat leg support to achieve the functional requirements of multi-directional adjustment of high-end seats (not limited to automobiles) and improve the riding comfort of passengers. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a six-way adjustable leg rest assembly and a car having the same, which can adapt to the legs of the driver and passengers in multiple directions to improve the riding experience of the driver and passengers.

[0004] The present invention provides a six-way adjustable leg rest assembly, comprising a leg rest lifting mechanism, a leg rest extension mechanism and a pedal flipping mechanism; the leg rest lifting mechanism comprises a first driving unit, a rotating rod and a leg rest unit, the rotating rod is penetrated by the leg rest unit, and the first driving unit drives the leg rest unit to rotate around the rotating rod; the leg rest extension mechanism comprises an extension frame and a second driving unit, the extension frame can be linearly slidably installed on the leg rest unit, and the second driving unit drives the extension frame to make linear reciprocating movements on the leg rest unit; the pedal flipping mechanism comprises a third driving unit and a pedal, the pedal is rotatably connected to the extension frame, and the third driving unit drives the pedal to rotate on the extension frame.

[0005] Optionally, a accommodating space is formed inside the leg rest unit of the leg rest lifting mechanism, and one of the two opposite side walls of the leg rest unit forming the accommodating space has a bearing surface for supporting the human calf, and the rotating rod is connected to the other side wall. The leg rest extension mechanism is located in the accommodating space and the extension frame can move back and forth in a straight line in the accommodating space, and the accommodating space is connected to the outside in the moving direction of the extension frame.

[0006] Optionally, the leg support lifting mechanism also includes two first transmission units, which are respectively located at two ends of the rotating rod, and the first driving unit drives the rotating rod to rotate. The first transmission unit includes a mounting plate, a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm. The two ends of the rotating rod are respectively fixed to the first connecting arms of the two first transmission units, the two ends of the first connecting arm are respectively pivoted to the mounting plate and one end of the second connecting arm, the other end of the second connecting arm is pivoted to the assembly plate, the two ends of the third connecting arm are respectively pivoted to the mounting plate and one end of the fourth connecting arm, the other end of the fourth connecting arm is pivoted to the assembly plate, and the first connecting arm and the fourth connecting arm are pivoted at a position between their two ends.

[0007] Optionally, the mounting plate is provided with a mounting hole, and the mounting plate is connected to the seat through the mounting hole.

[0008] Optionally, the third connecting arm is arc-shaped, and the third connecting arm is bent in a direction away from the fourth connecting arm.

[0009] Optionally, a first connecting rod and a second connecting rod are further connected between the two first transmission units, and both ends of the first connecting rod are respectively fixedly connected to the second connecting arms of the two first transmission units, and both ends of the second connecting rod are respectively fixedly connected to the fourth connecting arms of the two first transmission units.

[0010] Optionally, the leg support extension mechanism also includes a second transmission unit, the second transmission unit includes a first unfolding arm, a second unfolding arm, a third unfolding arm, a fourth unfolding arm, a fifth unfolding arm and a sixth unfolding arm, the first unfolding arm and the second unfolding arm are pivoted through ends, the other ends of the first unfolding arm and the second unfolding arm are respectively pivoted to the ends of the third unfolding arm and the fourth unfolding arm, the other ends of the third unfolding arm and the fourth unfolding arm are respectively pivoted to the ends of the fifth unfolding arm and the sixth unfolding arm, the other ends of the fifth unfolding arm and the sixth unfolding arm are pivoted to each other and remain fixed to the extension frame, the third unfolding arm and the fourth unfolding arm are cross-arranged and pivoted at the intersection through a connecting member, the second driving unit is fixedly connected to the leg support lifting mechanism, and the second driving unit drives the connecting member to make a linear reciprocating movement.

[0011] Optionally, the pedal flipping mechanism also includes a third transmission unit, which includes a connecting plate, a transmission rod, a first gear and a second gear that are meshed with each other. The transmission rod is passed through the pedal and is fixedly connected to the pedal. Both ends of the transmission rod are rotatably connected to the extension frame. The second gear is sleeved on the transmission rod. The connecting plate is fixedly connected to the leg support extension mechanism, and an arc groove is provided on the connecting plate. The first gear has an extension portion, and the extension portion can rotate in the arc groove to drive the first gear to rotate. The third driving unit is fixedly connected to the connecting plate and drives the extension portion of the first gear to rotate in the arc groove.

[0012] Optionally, the third driving unit includes a third motor and a third screw rod, and the third motor drives the third screw rod to move linearly relative to the connecting plate. One end of the third screw rod is pivotally connected to the extension part, and the third screw rod is arranged obliquely relative to the connecting plate to adapt the extension part to rotate in the arc groove.

[0013] The present invention also provides a car, comprising the six-way adjustable leg rest assembly as described above.

[0014] The beneficial effect of the present invention is that the present invention can respectively adapt the knee bending angle, calf length and sole support of the driver and passenger through rotation adjustment through the leg rest lifting mechanism, the leg rest extending mechanism and the foot pedal flipping mechanism, thereby providing the driver and passenger with a satisfactory riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a six-way adjustable leg rest assembly of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of a six-way adjustable leg rest assembly of the present invention from another perspective.

[0018] Figure 3 It is a structural schematic diagram of a first driving unit and a first transmission unit in a six-way adjustable leg rest assembly of the present invention.

[0019] Figure 4 It is a partial structural schematic diagram of a first drive unit and a first transmission unit in a six-way adjustable leg rest assembly of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the first driving unit and the first transmission unit in the six-way adjustable leg rest assembly of the present invention from another perspective.

[0021] Figure 6 This is a structural schematic diagram of a six-way adjustable leg rest assembly of the present invention from another perspective.

[0022] Figure 7 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0023] Figure 8 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0024] Fig. 9 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0025] Fig.10 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0026] Fig.11 for Fig.10 A partial enlarged view of point A in the middle.

[0027] Fig.12 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0028] Fig.13 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0029] Fig.14 It is a partial structural schematic diagram of a six-way adjustable leg rest assembly of the present invention.

[0030] Fig.15 It is a structural schematic diagram of a third driving unit and a third transmission unit in a six-way adjustable leg rest assembly of the present invention.

[0031] In the figure: Leg rest lifting mechanism 10, leg rest unit 101, leg rest 11, assembly plate 12, vertical plate 121, slide rail 122, first slide rail 122a, second slide rail 122b, through slot 123, first drive unit 13, first motor 13a, first screw rod 13b, first assembly block 13c, rotating block 13d, rotating rod 14, first transmission unit 15, first connecting arm 15a, second connecting arm 15b, third connecting arm 15c, fourth connecting arm 15d, mounting plate 15e, mounting hole 15f, first pivot shaft 15g, connecting rod 16, first connecting rod 17, second connecting rod 18; Leg support extension mechanism 20, extension frame 21, second drive unit 22, second motor 22a, second screw rod 22b, second assembly block 22c, push block 22d, second transmission unit 23, first unfolding arm 23a, second unfolding arm 23b, third unfolding arm 23c, fourth unfolding arm 23d, fifth unfolding arm 23e, sixth unfolding arm 23f, second pivot shaft 23g, third pivot shaft 23h, slider 24, first slider 24a, second slider 24b; The pedal flipping mechanism 30, the pedal 31, the transmission rod 32, the third driving unit 33, the third motor 33a, the third screw rod 33b, the fifth pivot shaft 33b1, the third assembly block 33c, the third transmission unit 34, the connecting plate 34a, the arc groove 34a1, the first gear 34b, the extension part 34b1, and the second gear 34c. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0036] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a six-way adjustable leg rest assembly, including a leg rest lifting mechanism 10, a leg rest extension mechanism 20 and a pedal flipping mechanism 30. The leg rest lifting mechanism 10 includes a first driving unit 13, a rotating rod 14 and a leg rest unit 101. The rotating rod 14 is penetrated on the leg rest unit 101. The first driving unit 13 drives the leg rest unit 101 to rotate around the rotating rod 14. The leg rest unit 101 is used to carry the calf of the driver and the passenger. The leg rest unit 101 flips when rotating around the rotating rod 14, so as to provide a comfortable angle for the driver and the passenger to place the calf.

[0038] like Figure 7 As shown, the leg support extension mechanism 20 includes an extension frame 21 and a second drive unit 22. The extension frame 21 can be installed on the leg support unit 101 in a linearly slidable manner. The second drive unit 22 drives the extension frame 21 to make linear reciprocating movements on the leg support unit 101. The leg support extension mechanism 20 extends out of the leg support unit 101 by making linear movements to adapt to the calf lengths of people of different heights. When not in use, it is reset to the leg support unit 101 by making linear movements.

[0039] like Fig.13 As shown, the pedal flipping mechanism 30 includes a third driving unit 33 and a pedal 31. The pedal 31 is rotatably connected to the extension frame 21. The third driving unit 33 drives the pedal 31 to rotate on the extension frame 21. After the leg rest extension mechanism 20 is extended from the leg rest unit 101, the pedal 31 is driven by the third driving unit 33 to rotate on the extension frame 21 and adjusted to a comfortable angle for the driver and passengers to avoid the driver and passengers' feet being suspended in the air, thereby improving the riding experience.

[0040] As described above, when the six-way adjustable leg rest assembly provided in this embodiment is installed on a seat, the leg rest lifting mechanism is flipped on the seat, and the flip angle of the bearing surface (the surface used to support the passenger's calf) of the leg rest unit of the leg rest lifting mechanism is adjusted to adapt to the placement posture of the passenger's calf. The leg rest unit can be flipped upward or downward, and can be adapted to the passenger's calf through debugging. After the leg rest lifting mechanism is flipped, the extension frame of the leg rest extension mechanism moves linearly on the leg rest lifting mechanism, and the extension frame and the bearing surface of the leg rest unit jointly support the passenger's calf. The extension frame can be extended or retracted on the leg rest lifting mechanism, and adjusted and adapted according to the length of the passenger's calf. After the extension frame moves, the footrest of the footrest flipping mechanism rotates to a suitable angle on the extension frame to provide support for the passenger's feet. The footrest can be flipped upward or downward. In this way, the six-way adjustable leg rest assembly provided in this embodiment can adapt to the placement angle of the driver and passenger's calf, and can be adjusted to adapt to the calf length of people of different heights. At the same time, it can also provide the driver and passenger with a foot fulcrum by rotating the footrest 31, and rotate and adapt, thereby comprehensively improving the driver and passenger's riding experience.

[0041] Furthermore, a accommodating space is formed inside the leg support unit 101 of the leg support lifting mechanism 10, and one of the two opposite side walls of the leg support unit 10 forming the accommodating space has a bearing surface for supporting the human calf, and the rotating rod 14 is connected to the other side wall. The leg support extension mechanism 20 is located in the accommodating space and the extension skeleton 21 can move back and forth in a straight line in the accommodating space, and the accommodating space is connected to the outside in the moving direction of the extension skeleton 21.

[0042] Specifically, Figure 1 and Figure 2As shown, the leg rest unit 101 of the leg rest lifting mechanism 10 includes a leg rest 11 and an assembly plate 12. The bearing surface is arranged on the leg rest 11 for bearing the calves of the driver and the passenger. The leg rest 11 and the assembly plate 12 are fixedly connected and there is a distance between the leg rest 11 and the assembly plate 12. The leg rest 11 is roughly in a concave-shaped structure. The assembly plate 12 is detachably connected to the top of the concave-shaped structure of the leg rest 11 by means of screws and screw holes to close the top opening of the concave-shaped structure of the leg rest 11. At least one side of the concave-shaped structure of the leg rest 11 is in an open state in the two sides of the concave space between the top and the bottom. Thus, the assembly plate 12 and the leg rest 11 enclose a accommodating space with at least one end open, and the leg rest extension mechanism 20 is located between the leg rest 11 and the assembly plate 12. When the extension frame 21 of the leg rest extension mechanism 20 moves in a straight line, it extends from the open end of the accommodating space to adapt to the calf length of the driver and passenger, and the rotating rod 14 is passed through the assembly plate 12. When the first driving unit 13 drives the rotating rod 14 to rotate, the rotating rod 14 drives the assembly plate 12 to rotate synchronously, and then drives the leg rest lifting mechanism 10 to rotate as a whole. After the leg rest lifting mechanism 10 is rotated into place as a whole, the extension length of the extension frame 21 of the leg rest extension mechanism 20 is adjusted. Since the adjustments of the leg rest lifting mechanism 10, the leg rest extension mechanism 20 and the foot pedal flipping mechanism 30 are independent of each other and have no connection, the leg rest unit 101 is configured to be connected with the leg rest 11 and the assembly plate 12 to form an accommodation space, and the leg rest extension mechanism 20 is configured in the accommodation space. When the first driving unit 13 drives the rotating rod 14 to rotate and then drives the leg rest unit 101 to flip, the driving force brought by the rotating rod 14 acts on the assembly plate 12, and will not interfere with the leg rest extension mechanism 20 and the foot pedal flipping mechanism 30 between the leg rest 11 and the assembly plate 12, thereby ensuring that the leg rest lifting mechanism 10, the leg rest extension mechanism 20 and the foot pedal flipping mechanism 30 will not interfere with each other when they are adjusted, thereby ensuring the adjustment stability and product quality.

[0043] Further, such as Figure 2 , Figure 3 and Figure 4As shown, the leg rest lifting mechanism 10 provided in this embodiment also includes two first transmission units 15, which are respectively located at the two ends of the rotating rod 14. The first driving unit 13 drives the rotating rod 14 to rotate, and the first transmission unit 15 includes a connecting rod 16, a mounting plate 15e, a first connecting arm 15a, a second connecting arm 15b, a third connecting arm 15c and a fourth connecting arm 15d. The two ends of the connecting rod 16 are fixedly connected to the two mounting plates 15e, so that the two mounting plates 15e are kept fixed. The mounting plate 15e is provided with a mounting hole 15f. The mounting plate 15e is fixedly connected to the frame of the seat through the mounting hole 15f by bolts, so that the six-way adjustable leg rest assembly provided in this embodiment is fixedly held on the seat as a whole. The first driving unit 13 includes a first motor 13a, a first screw rod 13b, a first assembly block 13c and a rotating block 13d. The first assembly block 13c is fixedly mounted on a mounting plate 15e of one of the first transmission units 15. A threaded hole matching the first screw rod 13b is provided on the first assembly block 13c. The first screw rod 13b is penetrated in the first assembly block 13c. The first motor 13a is fixedly mounted on the first assembly block 13c. The first screw rod 13b moves back and forth in the first assembly block 13c under the drive of the first motor 13a. The motor drives the screw rod to move back and forth in the assembly block in a straight line, which belongs to the existing conventional technology and will not be elaborated here. Two connecting holes are provided on the rotating block 13d, one of which is pivotally connected to one end of the first screw rod 13b. The rotating block 13d can rotate relative to the first screw rod 13b around the connecting hole, and the other connecting hole of the rotating block 13d is fixedly connected to the rotating rod 14. When the first screw rod 13b moves linearly, the rotating block 13d rotates around the connecting hole connected to the first screw rod 13b, thereby driving the part of the rotating block 13d with another connecting hole to rotate. Since the other connecting hole is fixedly connected to the rotating rod 14, the rotating rod 14 is driven to swing. The rotating rod 14 is driven by the first motor 13a and the first screw rod 13b to have a large rotation stroke and stability. The two ends of the rotating rod 14 are respectively fixedly connected to the first connecting arms 15a of the two first transmission units 15. When the rotating rod 14 rotates, it drives the first connecting arms 15a of the two first transmission units 15 to rotate synchronously. The two ends of the first connecting arm 15a are respectively pivoted to the mounting plate 15e and one end of the second connecting arm 15b, and the other end of the second connecting arm 15b is pivoted to the vertical plate 121 of the assembly plate 12 ( Figure 4In order to clearly show the positional relationship between the connecting arms, the vertical plate 121 on one side is hidden), the vertical plate 121 is installed perpendicular to the assembly plate 12, the two ends of the third connecting arm 15c are pivoted to the mounting plate 15e and one end of the fourth connecting arm 15d, respectively, the third connecting arm 15c is arc-shaped, and the third connecting arm 15c is bent in the direction away from the fourth connecting arm 15d. The position where the third connecting arm 15c is connected to the mounting plate 15e is farther away from the rotating rod 14 than the position where the first connecting arm 15a is connected to the mounting plate 15e, and the position where the first connecting arm 15a is pivoted to the mounting plate 15e is above the rotating rod 14, and the position where the third connecting arm 15c is pivoted to the mounting plate 15e is below the rotating rod 14, and the other end of the fourth connecting arm 15d is pivoted to the vertical plate 121 of the assembly plate 12, and the first connecting arm 15a and the fourth connecting arm 15d are pivoted at a position between their two ends through a first pivot axis 15g. By means of transmission through the first connecting arm 15a, the second connecting arm 15b, the third connecting arm 15c and the fourth connecting arm 15d, the leg rest 11 can be flipped over with a larger stroke and a larger flip angle. The transmission through the four connecting arms has a greater supporting strength, and the rotation process of the leg rest 11 is more stable without shaking.

[0044] Further, such as Figure 5 As shown, a first connecting rod 17 and a second connecting rod 18 are further connected between the two first transmission units 15, and both ends of the first connecting rod 17 are respectively fixedly connected to the second connecting arms 15b of the two first transmission units 15, and both ends of the second connecting rod 18 are respectively fixedly connected to the fourth connecting arms 15d of the two first transmission units 15. In this way, it can be ensured that the first transmission units 15 on both sides move in a consistent manner during the flipping process of the leg rest 11, and the structural strength can be enhanced to provide a firm support for the leg rest 11.

[0045] To sum up, in the six-way adjustable leg rest assembly provided in this embodiment, the leg rest lifting mechanism 10 adapted to the calf placement angle of the driver and passenger has a larger flip angle, and has a higher supporting strength and a more stable flipping. At the same time, the leg rest 11 and the assembly plate 12 are combined to accommodate the leg rest extension mechanism 20 and the pedal flipping mechanism 30, ensuring that there is no mutual interference during the adjustment of the three, and having higher stability.

[0046] Further, for the leg support extension mechanism 20, as Figure 6 As shown in Figure 6 Schematic diagram of the overall structure of the six-way adjustable leg rest assembly, the leg rest extension mechanism 20 is located between the leg rest 11 and the assembly plate 12 of the leg rest lifting mechanism 10. Figure 7 As shown in Figure 7The first drive unit 13 and the first transmission unit 15 are hidden in the overall structural diagram. Slide blocks 24 are provided on both sides of the extension frame 21 of the leg support extension mechanism 20. The assembly plate 12 is provided with slide rails 122 matching the slide blocks 24. The extension frame 21 moves linearly between the leg support 11 and the assembly plate 12 through the slide blocks 24 on both sides. After the leg support lifting mechanism 10 is flipped into place, the extension frame 21 moves linearly between the leg support 11 and the assembly plate 12 under the drive of the second drive unit 22, providing a leg support of appropriate length for the driver and passenger. Figure 7 and Figure 8 As shown in Figure 8 for Figure 7 On the basis of the above, the structural schematic diagram of the assembly plate 12 is further hidden. The second driving unit 22 includes a second motor 22a, a second screw rod 22b, and a second assembly block 22c. The second motor 22a and the second assembly block 22c are fixedly mounted on the assembly plate 12. The second motor 22a drives the second screw rod 22b to make a linear reciprocating movement through the second assembly block 22c. A through slot 123 is provided on the assembly plate 12. The extension direction of the through slot 123 is consistent with the moving direction of the second screw rod 22b. One end of the second screw rod 22b passes through the through slot 123 of the assembly plate 12 and is fixedly connected to the extension frame 21 of the leg support extension mechanism 20 under the assembly plate 12, driving the extension frame 21 to make a linear reciprocating movement.

[0047] Please also read Figure 8The leg support extension mechanism 20 also includes a second transmission unit 23, which includes a first unfolding arm 23a, a second unfolding arm 23b, a third unfolding arm 23c, a fourth unfolding arm 23d, a fifth unfolding arm 23e and a sixth unfolding arm 23f. One end of the first unfolding arm 23a and the second unfolding arm 23b is pivoted by a second pivot shaft 23g passing through the end, and the other ends of the first unfolding arm 23a and the second unfolding arm 23b are pivoted to the ends of the fourth unfolding arm 23d and the third unfolding arm 23c, respectively. The other ends of the third unfolding arm 23c and the fourth unfolding arm 23d are pivoted to the ends of the fifth unfolding arm 23e and the sixth unfolding arm 23f, respectively. The other ends of the fifth unfolding arm 23e and the sixth unfolding arm 23f are pivoted to each other by the third pivot shaft 23h and remain fixed to the extension frame 21. The third unfolding arm 23c and the fourth unfolding arm 23d are arranged crosswise and at the intersection The fork is pivoted by a connecting piece, and the connecting piece can be a fourth pivot axis. A pushing block 22d is fixedly connected above the connecting piece. One end of the second screw rod 22b of the second driving unit 22 is fixedly connected to the pushing block 22d above the connecting piece of the leg support lifting mechanism 10. The second driving unit 22 drives the pushing block 22d to make a straight line reciprocating movement through the second screw rod 22b, and then through the pivoting movement of the first unfolding arm 23a, the second unfolding arm 23b, the third unfolding arm 23c, the fourth unfolding arm 23d, the fifth unfolding arm 23e and the sixth unfolding arm 23f, the extension frame 21 is pushed to make a straight line reciprocating movement. The transmission method of the second motor 22a, the second screw rod 22b and the second transmission unit 23 can make the extension frame 21 have a larger moving mileage during the movement process, and these unfolding arms can provide strong support for the extension frame 21, and will not shake when carrying the legs of the driver and passengers.

[0048] For the sliding of the extension frame 21 between the leg support 11 and the mounting plate 12, as shown in FIG. Figures 9 to 11 As shown in Fig. 9 The structural schematic diagram of the first driving unit 13 and the first transmission unit 15 is hidden in the six-way adjustable leg rest assembly provided in this embodiment. Fig.10 for Fig. 9 The structural diagram of the leg support 11 is further hidden on the basis of FIG. Fig.11 for Fig.10 A partial enlarged view of point A in the middle.

[0049] The first slider 24a and the second slider 24b are respectively arranged on both sides of the extension frame 21 and the bottom near both sides, and the assembly plate 12 is respectively provided with the first slide rail 122a and the second slide rail 122b on the corresponding two sides and the plate surface, the first slider 24a matches the first slide rail 122a, and the second slider 24b matches the second slide rail 122b. The first slider 24a and the second slider 24b of the extension frame 21 slide in the first slide rail 122a and the second slide rail 122b of the assembly plate 12 respectively, so that the extension frame 21 can move linearly between the assembly plate 12 and the leg support 11. Among them, the first slide rail 122a is a three-level slide rail, which has a strong load-bearing capacity and runs smoothly, and is suitable for providing support during the movement of the leg support. By respectively arranging the first slider 24a and the second slider 24b on both sides and the bottom of the extension frame 21, it can be ensured that the slider 24 is more stable during the movement, does not shake, and has a smaller sliding resistance, and can have a larger moving range under the drive of the second motor 22a and the second screw rod 22b.

[0050] To sum up, in the six-way adjustable leg rest assembly provided in this embodiment, the leg rest extension mechanism 20 adapted to the calf length of the driver and passenger has a large moving range, a high supporting strength and is relatively stable during movement, and the leg rest extension mechanism 20 and the leg rest lifting mechanism 10 are separated by the assembly plate 12, and no mutual interference will occur during the adjustment process, and the leg rest extension mechanism 20 has high stability.

[0051] For the pedal turning mechanism 30, Fig.12 and Fig.13 As shown in Fig.12 A schematic structural diagram of the six-way adjustable leg rest assembly provided in this embodiment from another perspective. Fig.13 for Fig.12 The structural diagram of the leg rest 11 is omitted. The footrest 31 of the footrest flipping mechanism 30 is rotatably connected to one side of the extension frame 21 and is located at the open end of the accommodation space enclosed by the assembly plate 12 and the leg rest 11. When the extension frame 21 moves out of the accommodation space, the footrest 31 is driven to move out of the accommodation space together, and then flipped on the extension frame 21 under the drive of the third driving unit 33 to provide foot support for the driver and passengers.

[0052] For further information, please also refer to Fig.14 and Fig.15The pedal flipping mechanism 30 also includes a third transmission unit 34, which includes a connecting plate 34a, a transmission rod 32, a first gear 34b and a second gear 34c that are meshed with each other. The transmission rod 32 is inserted through the pedal 31 and is fixedly connected to the pedal 31. The pedal 31 is in the shape of a long plate and provides support for the feet of the driver and passenger. The two ends of the transmission rod 32 are rotatably connected to the extension frame 21. The second gear 34c is sleeved on the transmission rod 32 and is fixedly connected to the transmission rod 32, and can drive 32 to rotate. The connecting plate 34a is fixedly connected to the leg support extension mechanism 20, and an arc groove 34a1 is opened on the connecting plate 34a. The first gear 34b has an extension part 34b1, and the extension part 34b1 can rotate in the arc groove 34a1 to drive the first gear 34b to rotate. The third driving unit 33 is fixedly connected to the connecting plate 34a and can drive the extension part 34b1 of the first gear 34b to rotate in the arc groove 34a1. The first gear 34 b is driven to rotate by the third driving unit 33 , thereby driving the second gear 34 c meshing with the first gear 34 b to rotate, thereby driving the pedal 31 to flip on the leg support 11 .

[0053] See especially Fig.15 The third driving unit 33 includes a third motor 33a, a third screw rod 33b and a third assembly block 33c. The third motor 33a is fixedly connected to the third assembly block 33c, and the third assembly block 33c is fixedly connected to the connecting plate 34a. The third motor 33a drives the third screw rod 33b to move linearly relative to the connecting plate 34a. One end of the third screw rod 33b and the extension portion 34b1 are provided with holes with the same axis. The third screw rod 33b and the extension portion 34b1 are pivotally connected together through the fifth pivot shaft 33b1 passing through them. The third screw rod 33b is arranged obliquely relative to the length direction of the connecting plate 34a. At the same time, the outer peripheral wall of the extension portion 34b1 is an arc that matches the arc groove 34a1, so that the third screw rod 33b can match the extension portion 34b1 to rotate in the arc groove 34a1 when making linear reciprocating movements. In this way, the pedal 31 can be driven to flip while occupying a small space, and the flip angle of the pedal 31 is large.

[0054] In summary, the six-way adjustable leg rest assembly provided in this embodiment provides six-way adjustment for the calf of the driver and passenger by flipping the leg rest 11, moving the extension frame 21 and flipping the footrest 31, thereby improving the user experience. The leg rest 11, the extension frame 21 and the footrest 31 all have a large rotation or movement range. In addition, the assembly is reasonable, the space utilization rate is high, and the leg rest lifting mechanism, the leg rest extension mechanism 20 and the footrest flipping mechanism 30 will not interfere during adjustment, and the overall stability is high. At the same time, the overall structural strength is high, and it will not easily shake or be damaged when carrying the legs of the driver and passenger, and the movement is relatively stable.

[0055] This embodiment also provides a seat, including the six-way adjustable leg rest assembly as described above.

[0056] This embodiment also provides a car, including the six-way adjustable leg rest assembly or seat as described above.

[0057] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A six-way adjustable leg rest assembly, characterized in that: The invention comprises a leg support lifting mechanism (10), a leg support extension mechanism (20) and a pedal flipping mechanism (30); the leg support lifting mechanism (10) comprises a first driving unit (13), a rotating rod (14) and a leg support unit (101); the rotating rod (14) is passed through the leg support unit (101); the first driving unit (13) can drive the leg support unit (101) to rotate around the rotating rod (14); the leg support extension mechanism (20) comprises an extension frame (21) and a second driving unit (22 ), the extension frame (21) can be linearly slidably mounted on the leg support unit (101), and the second drive unit (22) can drive the extension frame (21) to perform linear reciprocating movement on the leg support unit (101); the pedal flipping mechanism (30) comprises a third drive unit (33) and a pedal (31), the pedal (31) is rotatably connected to the extension frame (21), and the third drive unit (33) can drive the pedal (31) to rotate on the extension frame (21).

2. The six-way adjustable leg rest assembly according to claim 1, characterized in that: The leg support unit (101) of the leg support lifting mechanism (10) has an accommodation space formed inside, one of the two opposite side walls of the leg support unit (10) forming the accommodation space has a bearing surface for supporting the lower leg of a human body, the rotating rod (14) is connected to the other side wall, the leg support extension mechanism (20) is located in the accommodation space and the extension frame (21) can make a linear reciprocating movement in the accommodation space, and the accommodation space is connected to the outside in the moving direction of the extension frame (21).

3. The six-way adjustable leg rest assembly according to claim 2, characterized in that: The leg support lifting mechanism (10) further comprises two first transmission units (15), the two first transmission units (15) being respectively located at two ends of the rotating rod (14), the first driving unit (13) driving the rotating rod (14) to rotate, the first transmission unit (15) comprising a mounting plate (15e), a first connecting arm (15a), a second connecting arm (15b), a third connecting arm (15c) and a fourth connecting arm (15d), the two ends of the rotating rod (14) being respectively fixedly connected to the first connecting arms (15c) of the two first transmission units (15). a), the two ends of the first connecting arm (15a) are respectively pivoted to the mounting plate (15e) and one end of the second connecting arm (15b), the other end of the second connecting arm (15b) is pivoted to the assembly plate (12), the two ends of the third connecting arm (15c) are respectively pivoted to the mounting plate (15e) and one end of the fourth connecting arm (15d), the other end of the fourth connecting arm (15d) is pivoted to the assembly plate (12), and the first connecting arm (15a) and the fourth connecting arm (15d) are pivoted at a position between their two ends.

4. The six-way adjustable leg rest assembly according to claim 3, characterized in that: The mounting plate (15e) is provided with a mounting hole, and the mounting plate (15e) is connected to the seat via the mounting hole.

5. The six-way adjustable leg rest assembly according to claim 3, characterized in that: The third connecting arm (15c) is arc-shaped, and the third connecting arm (15c) is bent in a direction away from the fourth connecting arm (15d).

6. The six-way adjustable leg rest assembly according to claim 3, characterized in that: A first connecting rod (17) and a second connecting rod (18) are also connected between the two first transmission units (15); two ends of the first connecting rod (17) are respectively fixedly connected to the second connecting arms (15b) of the two first transmission units (15); and two ends of the second connecting rod (18) are respectively fixedly connected to the fourth connecting arms (15d) of the two first transmission units (15).

7. The six-way adjustable leg rest assembly according to claim 1, characterized in that: The leg support extension mechanism (20) further comprises a second transmission unit (23), wherein the second transmission unit (23) comprises a first unfolding arm (23a), a second unfolding arm (23b), a third unfolding arm (23c), a fourth unfolding arm (23d), a fifth unfolding arm (23e) and a sixth unfolding arm (23f), wherein the first unfolding arm (23a) and the second unfolding arm (23b) are pivotally connected at their ends, and the other ends of the first unfolding arm (23a) and the second unfolding arm (23b) are pivotally connected to the ends of the third unfolding arm (23c) and the fourth unfolding arm (23d), respectively. The other ends of the unfolding arm (23c) and the fourth unfolding arm (23d) are respectively pivoted to the ends of the fifth unfolding arm (23e) and the sixth unfolding arm (23f); the other ends of the fifth unfolding arm (23e) and the sixth unfolding arm (23f) are pivoted to each other and are fixed to the extension frame (21); the third unfolding arm (23c) and the fourth unfolding arm (23d) are cross-arranged and pivoted at the intersection by a connecting member; the second drive unit (22) is fixedly connected to the leg support lifting mechanism (10); the second drive unit (22) drives the connecting member to perform linear reciprocating movement.

8. The six-way adjustable leg rest assembly according to claim 1, characterized in that: The pedal flipping mechanism (30) further comprises a third transmission unit (34), the third transmission unit (34) comprising a connecting plate (34a), a transmission rod (32), a first gear (34b) and a second gear (34c) meshing with each other, the transmission rod (32) being passed through the pedal (31) and being fixedly connected to the pedal (31), the two ends of the transmission rod (32) being rotatably connected to the extension frame (21), the second gear (34c) being sleeved on the transmission rod (32), the connecting plate (34a) ) is fixedly connected to the leg support extension mechanism (20), and an arc groove (34a1) is provided on the connecting plate (34a), the first gear (34b) has an extension portion (34b1), and the extension portion (34b1) can rotate in the arc groove (34a1) and thereby drive the first gear (34b) to rotate, and the third driving unit (33) is fixedly connected to the connecting plate (34a) and drives the extension portion (34b1) of the first gear (34b) to rotate in the arc groove (34a1).

9. The six-way adjustable leg rest assembly according to claim 8, characterized in that: The third drive unit (33) comprises a third motor and a third screw rod, the third motor drives the third screw rod to move linearly relative to the connecting plate (34a), one end of the third screw rod is pivotally connected to the extension portion (34b1), and the third screw rod is arranged obliquely relative to the connecting plate (34a) to adapt the extension portion (34b1) to rotate in the arc groove (34a1).

10. An automobile, characterized in that: It comprises a six-way adjustable leg rest assembly as described in any one of claims 1-9.

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