Electric four-way leg support of automobile seat

Abstract

The utility model discloses an electric four-way leg support of an automobile seat, which comprises a connecting rod lifting mechanism, a connecting rod lifting mechanism and a connecting rod lifting mechanism, a seat connector; a leg support supporting plate; a leg support movable part; the first driving piece comprises a first lead screw, and the end of the first lead screw is hinged to the main driving rod; the second driving piece comprises a second screw rod, and the end part of the second screw rod is hinged with the leg support movable piece; an avoiding structure is arranged on the main driving rod, the avoiding structure is used for avoiding the second lead screw, and when the main driving rod is rotated by the first driving piece, the avoiding structure always reserves an avoiding space for the second lead screw. According to the utility model, the first lead screw and the second lead screw do not interfere with each other, and the avoiding structure can rotate along with the rotation of the main driving rod; the movement space of the second lead screw is increased, the displacement amount between the leg support movable part and the leg support supporting plate is increased, when the second lead screw controls the leg support supporting plate to move in the direction away from the leg support movable part, more rotation space is reserved for the first lead screw, and therefore the maximum lifting angle is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to an electric four-way leg support for an automobile seat. Background Art

[0002] In the field of car seat design, leg rests, as an important component to improve the comfort and practicality of car seats, are gaining more and more attention from consumers and manufacturers. The traditional four-way leg rest structure usually has the functions of lifting up and down and unfolding left and right, aiming to provide users with more personalized leg support. However, with the continuous development of the seat market and the increasing diversification of user needs, the limitations of the existing four-way leg rest structure have gradually become apparent.

[0003] In the existing four-way leg rests for car seats, the opening angle and extension length of the leg rest are insufficient and cannot meet the customer's needs for lifting the legs at a larger angle. Specifically, due to the telescopic structure of the connecting rod lifting mechanism in the four-way leg rest and the limitations of the seat space, a longer lead screw motor cannot be used. If a longer lead screw motor is used, it will cause interference or resonance between the lead screws or between the lead screws and other parts, thereby causing jamming and noise problems when the leg rest is lifted. Utility Model Content

[0004] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides an electric four-way leg rest for a car seat, which can solve the problem of the height and extension of the leg rest, and provide a larger movement space for the second screw rod by setting an avoidance structure, so that a longer second screw rod can be used to increase the extension length of the leg rest, and the extension length of the leg rest is increased, so that the activity space of the first screw rod is increased, and thus the maximum height that the leg rest can be lifted is increased by changing direction.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An electric four-way leg support for a car seat comprises: a connecting rod lifting mechanism, wherein a main driving rod is arranged in the connecting rod lifting mechanism; a seat connecting member, wherein the seat connecting member is hinged to one end of the connecting rod lifting mechanism; a leg support support plate, wherein the seat connecting member is hinged to the other end of the connecting rod lifting mechanism; a leg support movable member, wherein the leg support movable member is slidably connected to the leg support support plate; and a first driving member, wherein the first driving member is assembled on the seat connecting member, wherein the first driving member comprises a first screw rod, wherein an end of the first screw rod is hinged to the main driving rod. To drive the main driving rod to rotate so as to lift the connecting rod lifting mechanism; a second driving member, the second driving member is assembled on the leg rest support plate, the second driving member includes a second screw rod, the end of the second screw rod is hinged to the leg rest movable member to enable relative sliding between the leg rest support plate and the leg rest movable member; wherein, an avoidance structure is provided on the main driving rod, the avoidance structure is used to avoid the second screw rod, and when the main driving rod is rotated by the first driving member, the avoidance structure always reserves avoidance space for the second screw rod.

[0007] By adopting the above scheme, the first screw rod and the second screw rod do not interfere with each other, and the avoidance structure can rotate along with the main driving rod, thereby increasing the movable space of the second screw rod, and further increasing the relative displacement between the leg rest movable part and the leg rest support plate. When the second screw rod controls the leg rest support plate to move away from the leg rest movable part, more rotation space is reserved for the first screw rod, thereby increasing the maximum lifting angle of the connecting rod lifting mechanism.

[0008] Furthermore, a guide sliding mechanism is provided between the leg rest support plate and the leg rest movable member, and the leg rest movable member slides relative to the leg rest support plate along the guide sliding mechanism.

[0009] By adopting the above solution and setting a guiding mechanism, a stable guiding effect can be provided for the displacement between the leg rest movable part and the leg rest support plate.

[0010] Furthermore, the guide sliding mechanism includes: a sliding sleeve, which is fixedly connected to the leg rest support plate; a U-shaped sliding tube, which includes a first sliding tube, a second sliding tube and a U-shaped portion connected therebetween, the first sliding tube is slidably arranged in the sliding sleeve, and the second sliding tube is fixedly connected to the leg rest movable part.

[0011] By adopting the above solution, a stable sliding effect can be achieved, thereby improving the smoothness of the relative sliding between the leg rest movable part and the leg rest support plate.

[0012] Furthermore, the avoidance structure is an arc-shaped tube connected to the main driving rod, and the inner circle radius of the arc-shaped tube is greater than the radius of the second screw rod.

[0013] By adopting the above solution, the second screw rod is effectively provided with a movable space.

[0014] Furthermore, the seat connector includes: a first side connecting plate, the edge of which is bent to form a first assembly plate for assembly with the seat; a second side connecting plate, the edge of which is bent to form a second assembly plate for assembly with the seat; a first cross bar, one end of which is fixed to the first side connecting plate, and the other end is fixed to the second side connecting plate; a second cross bar, one end of which is fixed to the first side connecting plate, and the other end is fixed to the second side connecting plate.

[0015] By adopting the above solution, the stability of the seat connector itself is improved, which is conducive to achieving a more solid assembly effect between the seat and the seat.

[0016] Furthermore, the first driving member includes: a first motor fixing plate, the first motor fixing plate is fixed between the first cross bar and the second cross bar; a first driving motor, the first driving motor drives the first screw rod to move, and the first driving motor is assembled on the first motor fixing plate.

[0017] By adopting the above solution, the assembly stability of the first driving member is improved, and a stable driving effect is provided for the first screw rod.

[0018] Furthermore, the connecting rod lifting mechanism is provided with two groups, each comprising: a first connecting rod, one end of which is hinged to the seat connecting piece; a second connecting rod, one end of which is hinged to the other end of the first connecting rod, and the other end of the second connecting rod is hinged to the leg rest support plate; a third connecting rod, one end of which is hinged to the seat connecting piece; a fourth connecting rod, one end of which is hinged to the other end of the third connecting rod, and the other end of the fourth connecting rod is hinged to the leg rest support plate; wherein, the first connecting rod and the fourth connecting rod are hinged in an X shape.

[0019] By adopting the above solution, the seat connecting part can be lifted.

[0020] Furthermore, both ends of the main driving rod are respectively connected to the first connecting rods in the two groups of connecting rod lifting mechanisms.

[0021] By adopting the above solution, the main driving rod can be driven to rotate by the driving of the first screw rod, thereby driving the connecting rod lifting mechanism to perform a lifting operation.

[0022] Furthermore, the leg rest support plate includes: a first support plate; a second support plate; a third cross bar, one end of the third cross bar is fixedly connected to the first support plate, and the other end is fixedly connected to the second support plate; a fourth cross bar, one end of the fourth cross bar is fixedly connected to the first support plate, and the other end is fixedly connected to the second support plate.

[0023] By adopting the above solution, the stability of the leg rest support plate itself is improved, thereby improving the sliding stability of the leg rest movable plate.

[0024] Furthermore, the second driving member includes: a second motor fixing plate, the second motor fixing plate is fixed between the third cross bar and the fourth cross bar; a second driving motor, the second driving motor drives the second screw rod to move, and the second driving motor is assembled on the second motor fixing plate.

[0025] By adopting the above solution, the assembly stability of the second driving member is improved, and a stable driving effect is provided for the second screw rod.

[0026] In summary, the electric four-way leg support for a car seat provided by the utility model has the following technical effects:

[0027] 1. Increase the extension length of the leg rest: By setting up an avoidance structure to provide a larger movement space for the second screw rod, a longer second screw rod can be used, thereby increasing the extension length of the leg rest and meeting the user's needs for a larger leg lift;

[0028] 2. Increase the lifting height of the leg rest: As the length of the leg rest increases, the activity space of the first screw rod also increases accordingly, thereby increasing the maximum height that the leg rest can be lifted to. This design allows users to adjust the lifting angle of the leg rest according to their needs, further improving the comfort and personalization of the seat;

[0029] 3. Reduce interference and noise: The design of the avoidance structure effectively avoids the mutual interference between the first screw and the second screw during movement, reduces the occurrence of resonance and jamming, thereby reducing the noise level and improving the user experience;

[0030] 4. Enhanced structural stability: Through reasonable structural design and assembly methods, the stability and reliability of the leg rest during lifting and extension are ensured, which improves the safety and service life of the seat;

[0031] 5. Strong adaptability: The electric four-way leg rest is flexibly designed and can be adaptively adjusted according to different vehicle models and seat sizes to meet the diverse needs of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0033] Figure 2 It is a schematic diagram of the top structure of an embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of a partial explosion structure of an embodiment of the utility model;

[0035] Figure 4 This is a schematic diagram of the connection structure of the leg support plate of an embodiment of the utility model;

[0036] Figure 5 This is a schematic diagram of the structure of the guide sliding mechanism of an embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram of the retracted structure of the connecting rod lifting mechanism of an embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of a partial explosion structure of the connecting rod lifting mechanism of an embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of the lifting structure of the connecting rod lifting mechanism of an embodiment of the utility model.

[0040] The meanings of the reference numerals are as follows: 1. connecting rod lifting mechanism; 11. first connecting rod; 111. fifth hinge point; 12. second connecting rod; 13. third connecting rod; 14. fourth connecting rod; 15. main driving rod; 151. avoidance structure; 2. seat connecting member; 21. first side connecting plate; 211. first assembly plate; 212. first hinge point; 213. second hinge point; 22. second side connecting plate; 221. first assembly plate; 23. first cross bar; 24. second cross bar; 3. leg rest support plate; 31. first support plate; 311. third hinge point; 312. fourth hinge point; 32. second support plate; 33. third cross bar; 34. fourth cross bar; 4. leg support movable part; 5. first drive member; 51. first screw rod; 52. first motor fixing plate; 53. first drive motor; 6. second drive member; 61. second screw rod; 62. second motor fixing plate; 63. second drive motor; 7. guide sliding mechanism; 71. sliding sleeve; 72. U-shaped sliding tube; 721. first sliding tube; 722. U-shaped portion; 723. second sliding tube. DETAILED DESCRIPTION

[0041] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments 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.

[0042] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the 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 cannot be understood as a limitation on the present invention.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0045] Embodiment 1 of the present utility model is referred to Figure 1-Figure 8As shown, an electric four-way leg rest for a car seat is disclosed, comprising a connecting rod lifting mechanism 1, a seat connecting member 2, a leg rest support plate 3, a leg rest movable member 4, a first driving member 5 and a second driving member 6, wherein the leg rest movable member 4 is slidably connected to the leg rest support plate 3; the connecting rod lifting mechanism 1 is provided with two groups, one end of the two groups of connecting rod lifting mechanisms 1 is hinged to the two sides of the seat connecting member 2, and the other end of the two groups of connecting rod lifting mechanisms 1 is hinged to the two sides of the leg rest support plate 3, the first driving member 5 is assembled on the seat connecting member 2, the first driving member 5 comprises a first screw rod 51, the end of the first screw rod 51 is hinged to the main driving rod 15, so as to drive the main driving rod 15 to rotate and lift the connecting rod lifting mechanism 1; the second driving member 6 is assembled on the leg rest support plate 3, the second driving member 6 comprises a second screw rod 61, the end of the second screw rod 61 is hinged to the leg rest movable member 4, so as to Relative sliding occurs between the leg rest support plate 3 and the leg rest movable part 4; a main driving rod 15 is arranged between the two groups of the connecting rod lifting mechanism 1, and an avoidance structure 151 is arranged on the main driving rod 15, and the avoidance structure 151 is used to avoid the second screw rod 61, and when the main driving rod 15 is rotated by the first driving part 5, the avoidance structure 151 always reserves avoidance space for the second screw rod 61, thereby making it possible for the first screw rod 51 and the second screw rod 61 to not interfere with each other, and the avoidance structure 151 can rotate with the rotation of the main driving rod 15, thereby increasing the movable space of the second screw rod 61, and further increasing the relative displacement between the leg rest movable part 4 and the leg rest support plate 3, and when the second screw rod 61 controls the leg rest support plate 3 to move away from the leg rest movable part 4, more rotation space is reserved for the first screw rod 51, thereby increasing the maximum lifting angle of the connecting rod lifting mechanism 1.

[0046] Preferably, the avoidance structure 151 is an arc-shaped tube connected to the main driving rod 15 , and the inner circle radius of the arc-shaped tube is larger than the radius of the second screw rod 61 , thereby effectively providing a movable space for the second screw rod 61 .

[0047] Specifically, the seat connector 2 includes a first side connecting plate 21, a second side connecting plate 22, a first cross bar 23, and a second cross bar 24. The first side connecting plate 21 is parallel to the second side connecting plate 22, the first cross bar 23 and the second cross bar 24 are parallel to each other, the first side connecting plate 21 and the first cross bar 23 and the second cross bar 24 are vertically connected, and the connection method between the first side connecting plate 21, the second side connecting plate 22, the first cross bar 23 and the second cross bar 24 is, but not limited to, welding fixation, clamping fixation or screw fixation. The edge of the first side connecting plate 21 is bent to form a first assembly plate 211 for assembly with the seat, and the second side connecting plate 21 is parallel to the second side connecting plate 22, and the first cross bar 23 and the second cross bar 24 are parallel to each other. The edge of the plate 22 is bent to form a second assembly plate 221 for assembly with the seat, which is conducive to achieving a more secure assembly effect with the seat; the leg rest support plate 3 includes a first support plate 31, a second support plate 32, a third cross bar 33 and a fourth cross bar 34, the first support plate 31 is parallel to the second support plate 32, the third cross bar 33 and the fourth cross bar 34 are parallel, the first support plate 31 is vertically connected to the third cross bar 33 and the fourth cross bar 34, the connection method between the first support plate 31, the second support plate 32, the third cross bar 33 and the fourth cross bar 34 includes but is not limited to welding fixation, clamping fixation or screw fixation to improve its own stability.

[0048] The first side connecting plate 21 and the second side connecting plate 22 are symmetrically arranged, and the first side connecting plate 21 and the second side connecting plate 22 are both provided with a first hinge point 212 and a second hinge point 213; the first support plate 31 and the second support plate 32 are symmetrically arranged, and the first support plate 31 and the second support plate 32 are provided with a third hinge point 311 and a fourth hinge point 312; the connecting rod lifting mechanism 1 includes a first connecting rod 11, a second connecting rod 12, a third connecting rod 13 and a fourth connecting rod 14, one end of the first connecting rod 11 is hinged to the first hinge point 212 of the seat connecting member 2, and ... One end of the second link 12 is hinged to the other end of the first link 11, the other end of the second link 12 is hinged to the third hinge point 311 of the leg rest support plate 3, one end of the third link 13 is hinged to the second hinge point 213 of the seat connector 2, one end of the fourth link 14 is hinged to the other end of the third link 13, the other end of the fourth link 14 is hinged to the fourth hinge point 312 of the leg rest support plate 3, and a fifth hinge point 111 is provided in the center of the first link 11 and the fourth link 14, so that the first link 11 and the fourth link 14 are hinged in an X shape.

[0049] In this embodiment 1, both ends of the main driving rod 15 are respectively connected to the first connecting rods 11 in the two groups of the connecting rod lifting mechanisms 1, and the connection methods include but are not limited to welding fixation or clamping fixation. Specifically, the connection part between the end of the main driving rod 15 and the first connecting rod 11 is located between one end of the first connecting rod 11 and the fifth hinge 111. According to this arrangement, the main driving rod 15 can be driven to rotate by the drive of the first screw rod 51, thereby driving the connecting rod lifting mechanism 1 to perform a lifting operation.

[0050] In some embodiments, in order to improve the sliding smoothness and stability between the leg support plate 3 and the leg support movable part 4, preferably, a guide sliding mechanism 7 is provided between the leg support plate 3 and the leg support movable part 4, and the leg support movable part 4 slides relative to the leg support plate 3 along the guide sliding mechanism 7. By providing a guide mechanism, a stable guiding effect can be provided for the displacement between the leg support movable part 4 and the leg support plate 3. Preferably, in this embodiment 1, the guide sliding mechanism 7 includes a sliding sleeve 71 and a U-shaped sliding tube 72, the sliding sleeve 71 is fixedly connected to the leg support plate 3, the U-shaped sliding tube 72 includes a first sliding tube 721, a second sliding tube 723 and a U-shaped portion 722 connected therebetween, the first sliding tube 721 is slidably disposed in the sliding sleeve 71, and the second sliding tube 723 is fixedly connected to the leg support movable part 4, which can achieve a stable sliding effect and improve the smoothness of the relative sliding between the leg support movable part 4 and the leg support plate 3.

[0051] It should be noted that the sliding sleeve 71 and the leg rest support plate 3 are fixed by welding or screws, the second sliding tube 723 and the leg rest movable part 4 are fixed by welding or screws, and the first sliding tube 721, the second sliding tube 723 and the U-shaped part 722 are connected by an integral connection or welding.

[0052] In the present embodiment 1, the first driving member 5 comprises a first motor fixing plate 52 and a first driving motor 53, the first motor fixing plate 52 is fixed between the first cross bar 23 and the second cross bar 24, the first driving motor 53 drives the first screw rod 51 to move, and the first driving motor 53 is mounted on the first motor fixing plate 52. Thus, the assembly stability of the first driving member 5 can be improved, and a stable driving effect can be provided for the first screw rod 51. The second driving member 6 comprises a second motor fixing plate 62 and a second driving motor 63, the second motor fixing plate 62 is fixed between the third cross bar 33 and the fourth cross bar 34, the second driving motor 63 drives the second screw rod 61 to move, and the second driving motor 63 is mounted on the second motor fixing plate 62. Thus, the assembly stability of the second driving member 6 can be improved, and a stable driving effect can be provided for the second screw rod 61.

[0053] When in use, the first drive motor 53 drives the first screw rod 51 forward. Since the first screw rod 51 is hinged to the hinge plate in the middle of the main drive rod 15, it can drive the main drive rod 15 to rotate, thereby driving the connecting rod lifting mechanism 1 to lift. During the lifting process, the second screw rod 61 is always in the avoidance structure 151 of the main drive rod 15. When it is lifted to a certain height, the second drive motor 63 drives the second screw rod 61 forward, thereby causing the leg rest movable part 4 to slide forward to extend the overall length of the leg rest. The second screw rod 61 gradually disengages from the avoidance structure 151, thereby providing more operating space for the first screw rod 51. At this time, the first screw rod 51 can continue to rotate to lift the connecting rod lifting mechanism 1 to the maximum angle.

[0054] In summary, the electric four-way leg support for a car seat provided by the utility model has the following technical effects:

[0055] 1. Increase the extension length of the leg rest: By setting the avoidance structure 151, a larger movement space is provided for the second screw rod 61, so that a longer second screw rod 61 can be used, thereby increasing the extension length of the leg rest and meeting the user's demand for raising the legs at a larger angle;

[0056] 2. Increase the lifting height of the leg rest: As the extension length of the leg rest increases, the activity space of the first screw rod 51 also increases accordingly, thereby increasing the maximum height to which the leg rest can be lifted. This design allows the user to adjust the lifting angle of the leg rest according to their needs, further improving the comfort and personalization of the seat;

[0057] 3. Reduce interference and noise: The design of the avoidance structure 151 effectively avoids mutual interference between the first screw rod 51 and the second screw rod 61 during movement, reduces the occurrence of resonance and jamming, thereby reducing the noise level and improving the user experience;

[0058] 4. Enhanced structural stability: Through reasonable structural design and assembly methods, the stability and reliability of the leg rest during lifting and extension are ensured, which improves the safety and service life of the seat;

[0059] 5. Strong adaptability: The electric four-way leg rest is flexibly designed and can be adaptively adjusted according to different vehicle models and seat sizes to meet the diverse needs of the market.

[0060] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric four-way leg support for a car seat, characterized in that: include: A connecting rod lifting mechanism (1), wherein a main driving rod (15) is provided in the connecting rod lifting mechanism (1); A seat connecting member (2), wherein the seat connecting member (2) is hingedly connected to one end of the connecting rod lifting mechanism (1); A leg support plate (3), the seat connecting member (2) being hinged to the other end of the connecting rod lifting mechanism (1); A leg support movable part (4), wherein the leg support movable part (4) is slidably connected to the leg support support plate (3); A first driving member (5), the first driving member (5) being mounted on the seat connecting member (2), the first driving member (5) comprising a first screw rod (51), the end of the first screw rod (51) being hinged to the main driving rod (15) so as to drive the main driving rod (15) to rotate so as to lift the connecting rod lifting mechanism (1); A second driving member (6), the second driving member (6) being mounted on the leg support plate (3), the second driving member (6) comprising a second screw rod (61), the end of the second screw rod (61) being hinged to the leg support movable member (4) so ​​as to enable relative sliding between the leg support plate (3) and the leg support movable member (4); Wherein, the main driving rod (15) is provided with an avoidance structure (151), and the avoidance structure (151) is used to avoid the second screw rod (61), and when the main driving rod (15) is rotated by the first driving member (5), the avoidance structure (151) always reserves avoidance space for the second screw rod (61).

2. The electric four-way leg support for a car seat according to claim 1, characterized in that: A guide sliding mechanism (7) is provided between the leg support plate (3) and the leg support movable member (4), and the leg support movable member (4) slides along the guide sliding mechanism (7) relative to the leg support plate (3).

3. The electric four-way leg support for a car seat according to claim 2, characterized in that: The guide sliding mechanism (7) comprises: A sliding sleeve (71), wherein the sliding sleeve (71) is fixedly connected to the leg support plate (3); A U-shaped sliding tube (72), the U-shaped sliding tube (72) comprising a first sliding tube (721), a second sliding tube (723) and a U-shaped portion (722) connected therebetween, the first sliding tube (721) being slidably disposed in the sliding sleeve (71), and the second sliding tube (723) being fixedly connected to the leg support movable part (4).

4. The electric four-way leg support for a car seat according to claim 1, characterized in that: The avoidance structure (151) is an arc-shaped tube connected to the main driving rod (15), and the inner circle radius of the arc-shaped tube is greater than the radius of the second screw rod (61).

5. The electric four-way leg support for a car seat according to claim 1, characterized in that: The seat connection member (2) comprises: A first side connecting plate (21), wherein the edge of the first side connecting plate (21) is bent to form a first assembly plate (211) for assembly with a seat; A second side connecting plate (22), the edge of the second side connecting plate (22) being bent to form a second assembly plate (221) for assembly with the seat; a first cross bar (23), wherein one end of the first cross bar (23) is fixed to the first side connecting plate (21), and the other end of the first cross bar (23) is fixed to the second side connecting plate (22); A second cross bar (24), wherein one end of the second cross bar (24) is fixed to the first side connecting plate (21), and the other end of the second cross bar (24) is fixed to the second side connecting plate (22).

6. The electric four-way leg support for a car seat according to claim 5, characterized in that: The first driving member (5) comprises: A first motor fixing plate (52), wherein the first motor fixing plate (52) is fixed between the first cross bar (23) and the second cross bar (24); A first drive motor (53), the first drive motor (53) drives the first screw rod (51) to move, and the first drive motor (53) is mounted on the first motor fixing plate (52).

7. The electric four-way leg support for a car seat according to claim 1, characterized in that: The connecting rod lifting mechanism (1) is provided with two groups, each comprising: A first connecting rod (11), one end of which is hinged to the seat connecting member (2); A second connecting rod (12), one end of the second connecting rod (12) being hinged to the other end of the first connecting rod (11), and the other end of the second connecting rod (12) being hinged to the leg support plate (3); A third connecting rod (13), one end of which is hinged to the seat connecting member (2); a fourth connecting rod (14), one end of the fourth connecting rod (14) being hinged to the other end of the third connecting rod (13), and the other end of the fourth connecting rod (14) being hinged to the leg support plate (3); Wherein, the first connecting rod (11) and the fourth connecting rod (14) are hinged in an X shape.

8. The electric four-way leg support for a car seat according to claim 7, characterized in that: Both ends of the main driving rod (15) are respectively connected to the first connecting rods (11) in the two sets of connecting rod lifting mechanisms (1).

9. The electric four-way leg support for a car seat according to claim 1, characterized in that: The leg support plate (3) comprises: A first supporting plate (31); A second support plate (32); a third cross bar (33), one end of the third cross bar (33) being fixedly connected to the first support plate (31), and the other end of the third cross bar (33) being fixedly connected to the second support plate (32); A fourth cross bar (34), one end of the fourth cross bar (34) is fixedly connected to the first support plate (31), and the other end of the fourth cross bar (34) is fixedly connected to the second support plate (32).

10. The electric four-way leg support for a car seat according to claim 9, characterized in that: The second driving member (6) comprises: A second motor fixing plate (62), wherein the second motor fixing plate (62) is fixed between the third cross bar (33) and the fourth cross bar (34); A second driving motor (63), the second driving motor (63) drives the second screw rod (61) to move, and the second driving motor (63) is mounted on the second motor fixing plate (62).

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