A car electric seat leg adjuster assembly

Abstract

The present invention discloses a leg adjuster assembly for an automobile electric seat, which relates to the technical field of leg adjustment; in order to achieve relaxation and support for the legs; it specifically includes a base and a driving unit for adjusting the leg support assembly, the driving unit includes a power assembly and an adjustment assembly, and the adjustment assembly includes: a slider: two sliders are respectively movably connected to the inner wall of a slide groove opened on the upper surface of the base; a limit rod: two limit rods are respectively fixed to the outer wall of the top of the two sliders by pins. The present invention utilizes the relative rotation between the second adjustment arm and the first adjustment arm, so that when the position of the slider relative to the slide groove opened on the surface of the base remains unchanged, the roller drives the back of the leg support body during the movement, and utilizes the limiting effect of the contact plate and the card plate to make the leg support body remain in a state perpendicular to the horizontal plane and move laterally a certain distance, so as to ensure full support for the thigh and then rotate along the receiving plate to support the calf.

Description

Technical Field

[0001] The invention relates to the technical field of leg adjustment, in particular to a leg adjuster assembly of an automobile electric seat. Background Art

[0002] In the prior art, with the rapid development of automobile technology and the continuous improvement of people's living standards, people have higher requirements for the riding comfort of automobiles. Automobile seats are the most important components for people to experience riding comfort, and the multifunctional adjustment of automobile seats is also the guarantee of good comfort.

[0003] At present, car seats are mainly divided into manual adjustment and electric adjustment. For electric adjustment of seats, the front and back and up and down adjustment of car seats can be realized by using relevant adjustment buttons. For some high-end cars, leg rests are also installed on the seats, which can support the calves and relax the calves. At present, for the adjustment assembly of the legs of electric car seats, each adjustment item such as seat height, front and back, and the expansion and extension of the leg rest requires a separate control element such as a motor to drive. Although the adjustment function can be realized, the excessive use of motors will also increase the failure rate;

[0004] Therefore, the present application designs a leg adjuster assembly, which can simplify the assembly structure while improving its convenience during operation and realize flexible adjustment of the leg posture. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automobile electric seat leg adjuster assembly.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A vehicle electric seat leg adjuster assembly includes a base and a driving unit for adjusting a leg support assembly, wherein the driving unit includes a power assembly and an adjusting assembly, and the adjusting assembly includes:

[0008] Slide block: two slide blocks are movably connected to the inner wall of the slide groove opened on the upper surface of the base;

[0009] Limit rods: two limit rods are fixed to the top outer walls of the two sliders through pins respectively;

[0010] Extension plates: The two extension plates are movably connected to the outer walls of the two limit rods, and an adjustment arm 1 is fixed to the outer walls of one side of the two extension plates. The two ends of the adjustment arm 1 are movably connected to the adjustment arm 2 and the adjustment arm 4 through the rotating shaft, and the two adjustment arms 1 are fixedly connected through the connecting plate 1;

[0011] Roller: It is movably connected between two adjusting arms 4;

[0012] Adjustment arm three: two ends of which are movably connected to adjustment arm two and an end of adjustment arm four away from adjustment arm one through a rotating shaft;

[0013] The leg support assembly comprises:

[0014] U-shaped plate: fixed to the outer wall of one side of the connecting plate;

[0015] T-shaped rod: It is movably connected to the inner wall of the through hole opened at one end of the U-shaped plate, and a spring is fixed between the inner wall of one side of the T-shaped rod and the inner wall of one side of the U-shaped plate through a pin;

[0016] Accommodating plate: fixed to one end of the T-bar by a pin;

[0017] A toggle column: It is movably connected to the inner wall of the through hole opened on the surface of the accommodating plate, and the two ends of the toggle column are fixed with the same leg support body by pins;

[0018] Mounting shell: It is fixed to one end of the accommodating plate by a pin, and a coil spring is fixed between the inner wall of the mounting shell and the outer wall of the circumference of the toggle column by a pin;

[0019] Clamp: It is fixed to the top outer wall of the U-shaped plate by pins;

[0020] Resistance plate: It is fixed to the bottom of the connecting plate through pins.

[0021] Preferably: the power assembly includes an adjusting motor and a second connecting plate, the second connecting plate is fixed between two adjusting arms one, the adjusting motor is fixed to an outer wall of one side of the second connecting plate, and the output end of the adjusting motor is connected to a driving gear via a key.

[0022] Preferably, a driving rod is fixed to the rotating shaft between the adjusting arm 1 and the adjusting arm 2 by insertion, and a driven gear meshing with the driving gear is connected to the outer wall of the driving rod by a key.

[0023] Preferably: the power assembly also includes an inner tooth plate, an outer tooth plate and a bushing, the bushing is fixedly connected to one end of the inner tooth plate by riveting, a center cut block is placed on the inner side of the outer tooth plate, and a cut block is placed on the top of the center cut block, and the inner tooth plate and the outer tooth plate are connected by inlaying.

[0024] Preferably: the two card entrances opened on the surface of the cutting block are installed with tension springs by pressing, the convex bump at the end of the inner tooth plate is installed with a dial wheel by carding, one end of the outer tooth plate is fixed with a Persian cap by riveting, and the circumferential outer wall of the outer tooth plate is fixed with a shell by riveting.

[0025] Preferably, a card shell is fixed on the outer wall of one side of the adjusting arm, and the enclosure shell and the card shell are fixedly connected by embedding.

[0026] Preferably, a slideway is fixed on the top outer wall of the base, a vertical plate is welded on the bottom outer wall of the adjusting arm, and a roller is movably connected to the inner wall of the vertical plate.

[0027] Based on the above solution: a guide column is fixed to the inner wall of a slide groove opened on the surface of one of the bases through a pin.

[0028] Based on the above scheme, it is preferred that: a lead screw is movably connected to the inner wall of a slide groove opened on the other surface of the base, and a partition is welded to the inner wall of the slide groove, and a driving motor is fixed to the outer wall of one side of the partition.

[0029] On the basis of the above scheme, it is further preferred that: the circumferential outer wall of the roller shaft is connected with a gear through a key, and a tooth groove cooperating with the gear is opened on the back of the leg rest body, swing arms are fixed at both ends of the roller shaft, and a foot rest assembly is installed at the bottom of the two swing arms, the foot rest assembly includes a sleeve and an electric telescopic rod, the sleeve is fixed to the bottom of the swing arm, and the output end of the electric telescopic rod is fixed to the top inner wall of the sleeve by a pin, and the foot rest body is fixed to the bottom of the electric telescopic rod.

[0030] The beneficial effects of the present invention are:

[0031] 1. By utilizing the relative rotation between the second adjusting arm and the first adjusting arm, under the premise that the position of the sliding groove opened relative to the base surface remains unchanged, the roller drives the back of the leg support body during the movement, and the limiting effect of the resistance plate and the clamping plate is utilized to make the leg support body remain vertical to the horizontal plane and move laterally a certain distance, ensuring full support for the thigh and then rotating along the accommodating plate to support the calf, thereby achieving support and relaxation for the leg.

[0032] 2. At the same time, the relative rotation between the adjusting arm 2 and the adjusting arm 1 can be used to adjust the height of the adjusting arm 1 without changing the position of the slide relative to the slide groove provided on the base surface, so that the passengers can adjust the riding height vertically.

[0033] 3. A driving motor can be provided to drive the lead screw to rotate, so that the lateral position of the adjusting arm can be adjusted, so that the passenger can adjust the leg space relative to the front and rear space of the vehicle according to the leg length.

[0034] 4. An adjusting motor can be provided to drive the driving gear to rotate. The driving gear drives the driven gear and the driving rod to rotate, so that the driving rod can drive the paddle wheel to rotate synchronously. During the rotation of the paddle wheel, the tension spring can gradually tighten the cut block and then press the bushing so that there is always a pair of teeth in meshing state between the inner tooth plate and the outer tooth plate. During this process, the paddle wheel drives the cut block to make eccentric movement. After the paddle wheel rotates one circle, the inner tooth plate and the outer tooth plate move one tooth relative to each other, so that the adjusting motor can be used to drive the adjusting arm 2 to perform continuous adjustment relative to the adjusting arm 1.

[0035] 5. By providing a coil spring, when the roller is detached from the back of the leg rest body, the leg rest body can be quickly reset relative to the receiving plate, so that the leg rest body can be restored to be perpendicular to the horizontal plane. This can ensure the stability of the leg rest body when the leg rest body is no longer needed to support the calf. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of an automotive electric seat leg adjuster assembly proposed by the present invention;

[0037] Figure 2 A schematic diagram of the top view of the structure of a leg adjuster assembly of an electric seat for an automobile proposed by the present invention;

[0038] Figure 3 A schematic diagram of the installation structure of a leg support component of a leg adjuster assembly of an electric car seat proposed by the present invention;

[0039] Figure 4 This is a schematic diagram of the exploded structure of a leg support component of a leg adjuster assembly for an electric car seat proposed by the present invention;

[0040] Figure 5 This is a schematic diagram of the installation structure of the driving part of the leg adjuster assembly of an automobile electric seat proposed by the present invention;

[0041] Figure 6 A schematic diagram of the partial structure of a driving part of a leg adjuster assembly of an electric seat for an automobile proposed by the present invention;

[0042] Figure 7 This is a schematic diagram of the main structure of the angle adjuster of the leg adjuster assembly of an electric car seat proposed by the present invention;

[0043] Figure 8 This is a schematic diagram of the overall exploded structure of an angle adjuster of a leg adjuster assembly of an electric car seat proposed by the present invention;

[0044] Fig. 9 This is a schematic diagram of the exploded structure of the angle adjuster main body of the leg adjuster assembly of an electric car seat proposed by the present invention;

[0045] Fig.10 A schematic diagram of a partial explosion structure of an adjuster of a leg adjuster assembly of an electric seat for an automobile proposed by the present invention;

[0046] Fig.11 This is a schematic diagram of the installation structure of a footrest assembly of a leg adjuster assembly of an electric car seat proposed by the present invention;

[0047] Fig.12 The present invention is a schematic diagram of the main structure of a footrest component of a leg adjuster assembly for an electric car seat.

[0048] In the figure: 1-base, 2-guide column, 3-limit rod, 4-connecting plate 1, 5-adjusting arm 1, 6-adjusting arm 2, 7-driving motor, 8-screw, 9-slider, 10-extension plate, 11-accommodating plate, 12-card plate, 13-leg support body, 14-driving rod, 15-partition plate, 16-adjusting arm 3, 17-roller, 18-U-shaped plate, 19-adjusting arm 4, 20-contact plate, 21-spring, 22-T-shaped rod, 23-mounting shell, 24-sliding column, 2 5-coil spring, 26-casing, 27-driven gear, 28-adjusting motor, 29-driving gear, 30-connecting plate 2, 31-roller, 32-vertical plate, 33-slide, 34-envelope, 35-push wheel, 36-Persian cap, 37-inner tooth plate, 38-tension spring, 39-outer tooth plate, 40-bushing, 41-cut block, 42-center cut block, 43-tooth groove, 44-swing arm, 45-foot support body, 46-sleeve, 47-electric telescopic rod, 48-gear. DETAILED DESCRIPTION

[0049] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] Embodiment 1: A vehicle electric seat leg adjuster assembly, such as Figures 1 to 10 As shown, it includes a base 1 and a driving unit for adjusting the leg support assembly, the driving unit includes a power assembly and an adjustment assembly, and the adjustment assembly includes:

[0052] Slide blocks 9: two slide blocks 9 are respectively slidably connected to the inner walls of the slide grooves provided on the upper surface of the base 1;

[0053] Limit rods 3: two limit rods 3 are respectively fixed to the top outer walls of the two sliders 9 by pins;

[0054] Extension plates 10: The two extension plates 10 are respectively slidably connected to the outer circumferential walls of the two limit rods 3, and the outer walls of one side of the two extension plates 10 are fixed with an adjustment arm 1 5 by bolts, and the two ends of the adjustment arm 1 5 are respectively rotatably connected with an adjustment arm 2 6 and an adjustment arm 4 19 by a rotating shaft, and the two adjustment arms 1 5 are fixedly connected by a connecting plate 1 4;

[0055] Roller shaft 17: It is rotatably connected between two adjusting arms 19;

[0056] Adjustment arm three 16: two ends of which are rotatably connected to adjustment arm two 6 and an end of adjustment arm four 19 away from adjustment arm one 5 respectively through a rotating shaft;

[0057] The leg support assembly comprises:

[0058] U-shaped plate 18: fixed to the outer wall of one side of the connecting plate 4 by bolts;

[0059] T-shaped rod 22: It is slidably connected to the inner wall of the through hole opened at one end of the U-shaped plate 18, and a spring 21 is fixed between the inner wall of one side of the T-shaped rod 22 and the inner wall of one side of the U-shaped plate 18 through a pin;

[0060] The receiving plate 11 is fixed to one end of the T-shaped rod 22 by a pin;

[0061] The toggle post 24 is rotatably connected to the inner wall of the through hole formed on the surface of the receiving plate 11, and the two ends of the toggle post 24 are fixed to the same leg support body 13 by pins;

[0062] The mounting shell 23 is fixed to one end of the receiving plate 11 by a pin, and a coil spring 25 is fixed between the inner wall of the mounting shell 23 and the outer wall of the circumference of the toggle column 24 by a pin;

[0063] The clamping plate 12 is fixed to the top outer wall of the U-shaped plate 18 by pins;

[0064] The contact plate 20 is fixed to the bottom of the connecting plate 4 by a pin;

[0065] By providing a base 1, the entire assembly can be installed and fixed between the vehicle chassis, and the leg support body 13 can play a supporting role for the legs. When the legs need to be supported, the adjusting arm 2 6 and the adjusting arm 4 19 are driven to rotate along the adjusting arm 1 5, so that the roller 17 moves relative to the adjusting arm 1 5 toward the direction close to the back of the leg support body 13. When the roller 17 moves to the back of the leg support body 13, the resistance plate 20 is pressed against the top of the leg support body 13 in the initial stage, and the contact surface of the resistance plate 20 and the top of the leg support body 13 is a plane, so that when the roller 17 contacts the back of the leg support body 13, the leg support body 13 is pushed horizontally, so that the leg support body 13 moves outward a certain distance in a state perpendicular to the horizontal plane. During the process, the spring 21 is gradually stretched. The purpose of this is to ensure that the thigh is fully supported and avoid a gap between the thigh and the adjusting arm 1 5. As the leg support body 13 continues to move horizontally, When the leg support body 13 gradually separates from the spring 21, the outer wall of the receiving plate 11 moves to fit between the inner wall of the clamping plate 12. As the roller 17 continues to push the leg support body 13, the clamping plate 12 limits the position of the receiving plate 11, so that the leg support body 13 rotates along the receiving plate 11 under the driving action of the roller 17, so that the leg support body 13 gradually lifts the calf during the rotation. In this process, since the adjusting arm 2 6 and the adjusting arm 4 19 rotate along the two ends of the adjusting arm 1 5 respectively, the straight-line distance between the adjusting arm 1 5 and the adjusting arm 3 16 gradually decreases. Therefore, when the thigh is placed on the top of the adjusting arm 1 5, when the adjusting arm 3 16 is supported by the base 1, the adjusting arm 1 5 will slide down in the vertical direction under the guidance of the limiting rod 3 and the extension plate 10, so that the center of gravity of the adjusting arm 1 5 relative to the base 1 is lowered, so that the legs of the occupant can relax and rest more comfortably.

[0066] By providing a coil spring 25, when the roller 17 is detached from the back of the leg rest body 13, the leg rest body 13 can be quickly reset relative to the receiving plate 11, so that the leg rest body 13 is restored to be perpendicular to the horizontal plane. This can ensure the stability of the leg rest body 13 when the leg rest body 13 is no longer needed to support the calf.

[0067] Further, the power assembly includes an adjusting motor 28 and a connecting plate 2 30, the connecting plate 2 30 is fixed between the two adjusting arms 1 5 by bolts, the adjusting motor 28 is fixed to the outer wall of one side of the connecting plate 2 30 by bolts, and the output end of the adjusting motor 28 is connected to the driving gear 29 by a key, the rotating shaft between the adjusting arm 1 5 and the adjusting arm 2 6 is fixed with the driving rod 14 by insertion, and the outer wall of the driving rod 14 is connected with the driven gear 27 meshing with the driving gear 29 by a key; the power assembly also includes an inner tooth plate 37, an outer tooth plate 39 and a bushing 40, the bushing 40 is fixed between one end of the inner tooth plate 37 by riveting The outer tooth plate 39 is fixedly connected, a central cut block 42 is placed inside the outer tooth plate 39, and a cut block 41 is placed on the top of the central cut block 42, and the inner tooth plate 37 and the outer tooth plate 39 are connected by an inlay method, and the card inlets opened on the surfaces of the two cut blocks 41 are installed with a tension spring 38 by pressing, and the convex bulge at the end of the inner tooth plate 37 is installed with a dial wheel 35 by snapping, and a Persian cap 36 is fixed to one end of the outer tooth plate 39 by a pressure riveting method, and a shell 34 is fixed to the outer wall of the circumference of the outer tooth plate 39 by a rotary riveting method, and a card shell 26 is fixed to the outer wall of one side of the adjusting arm 5 by bolts, and the shell 34 and the card shell 26 are fixedly connected by embedding;

[0068] By providing an adjusting motor 28, the driving gear 29 can be driven to rotate. In the process of the driving gear 29 driving the driven gear 27 and the driving rod 14 to rotate, the driving rod 14 can drive the paddle wheel 35 to rotate synchronously. During the rotation of the paddle wheel 35, the tension spring 38 can gradually tighten the cut block 41 and then press the bushing 40 so that there is always a pair of teeth in meshing state between the inner tooth plate 37 and the outer tooth plate 39. During this process, the paddle wheel 35 drives the cut block 41 to make an eccentric movement. After the paddle wheel 35 rotates one circle, the inner tooth plate 37 and the outer tooth plate 39 move one tooth relative to each other, so that the adjusting motor 28 can be used to drive the adjusting arm 2 6 to perform continuous adjustment relative to the adjusting arm 1 5.

[0069] Furthermore, a slideway 33 is fixed to the top outer wall of the base 1 by bolts, and a vertical plate 32 is welded to the bottom outer wall of the adjusting arm 3 16, and a roller 31 is rotatably connected to the inner wall of the vertical plate 32;

[0070] When the power assembly drives the adjusting arm 2 6 to rotate along the end of the adjusting arm 1 5 , the roller 31 will roll along the top inner wall of the slide 33 during this process. The roller 31 and the slide 33 can avoid direct contact between the adjusting arm 3 16 and the base 1 , thereby causing greater friction between the adjusting arm 3 16 and the base 1 .

[0071] Furthermore, a guide column 2 is fixed to the inner wall of a slide groove opened on the surface of one base 1 by a pin, and a lead screw 8 is rotatably connected to the inner wall of a slide groove opened on the surface of another base 1, and a partition 15 is welded to the inner wall of the slide groove, and a drive motor 7 is fixed to the outer wall of one side of the partition 15 by bolts, and the output end of the drive motor 7 and one end of the lead screw 8 are connected by a coupling;

[0072] The drive motor 7 can drive the lead screw 8 to rotate, so that the slider 9 can move along the inner wall of the slide groove. In this way, the lateral position of the leg support assembly can be adjusted.

[0073] When the present embodiment is used, the base 1 and the vehicle chassis are first fixed, and then the car seat cushion is installed on the adjusting arm 15, and the buttocks are supported by the seat cushion. When the height of the adjusting arm 15 needs to be adjusted, the adjusting motor 28 is used to drive the driving gear 29 to rotate, and the driven gear 27 and the driving rod 14 are driven to rotate during the rotation of the driving gear 29, and then the power component is used to drive the adjusting arm 26 to rotate along the end of the adjusting arm 15. During this process, the roller 31 can slide along the top of the slideway 33, so that the adjusting arm 15 can move in the vertical direction under the guiding and limiting action of the extension plate 10 and the limiting rod 3, and the height of the adjusting arm 15 is adjusted under the premise that the position of the slider 9 relative to the slide groove opened on the surface of the base 1 remains unchanged. When the horizontal position of the adjusting arm 15 needs to be adjusted, the driving motor 7 is used to drive the screw 8 to rotate, so that the slider 9 can move horizontally along the slide groove opened on the surface of the base 1, so that the horizontal position of the adjusting arm 15 can be adjusted;

[0074] When the occupants need to use the leg support assembly to support their legs for relaxation and rest, the power assembly is used to drive the adjustment arm 2 6 to rotate along the adjustment arm 1 5, and the rotation angle of the adjustment arm 2 6 relative to the adjustment arm 1 5 is continuously increased. As the rotation angle of the adjustment arm 2 6 increases, when the roller 17 moves to the back of the leg support body 13, the limiting effect of the contact plate 20 is used to make the roller 17 first push the leg support body 13 laterally. The leg support body 13 first moves laterally a certain distance while maintaining verticality to the horizontal plane, thereby ensuring that the adjustment arm 1 5 can fully support the thigh after extension. When the leg support body 13 is detached from the surface of the contact plate 20, the accommodating plate 11 moves to fit between the inner wall of one side of the clamping plate 12. As the roller 17 continues to move, the roller 17 pushes the back of the leg support body 13. During this process, the leg support body 13 rotates along the accommodating plate 11 to lift the calf, thereby supporting and relaxing the calf.

[0075] Embodiment 2: A vehicle electric seat leg adjuster assembly, such as Figure 11 to Figure 12As shown, this embodiment makes the following supplements on the basis of the embodiment 1: the outer wall of the circumference of the roller shaft 17 is connected with a gear 48 through a key, and a tooth groove 43 used in conjunction with the gear 48 is provided on the back of the leg support body 13, swing arms 44 are fixed at both ends of the roller shaft 17, and foot support assemblies are installed at the bottom of the two swing arms 44, and the foot support assembly includes a sleeve 46 and an electric telescopic rod 47, the sleeve 46 is fixed to the bottom of the swing arm 44 by screws, and the output end of the electric telescopic rod 47 is fixed to the top inner wall of the sleeve 46 by a pin, and the foot support body 45 is fixed to the bottom of the electric telescopic rod 47 by screws, and the foot support body 45 and the sleeve 46 are slidably connected;

[0076] During the process of the roller 17 pushing against the back of the leg rest body 13, the cooperation between the tooth groove 43 and the gear 48 allows the roller 17 to rotate. During the rotation process, the roller 17 drives the swing arm 44 and the foot rest assembly to rotate. After the foot rest assembly rotates, it gradually moves to the front of the leg rest body 13. The foot rest body 45 can support the foot to improve the riding comfort of the person. When the length of the foot rest body 45 needs to be adjusted, the electric telescopic rod 47 is used to control the foot rest body 45 to slide along the sleeve 46 to adjust the length of the foot rest body 45.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle electric seat leg adjuster assembly, comprising a base (1) and a drive unit for adjusting a leg support assembly, characterized in that: The driving part includes a power component and an adjustment component, and the adjustment component includes: Slide blocks (9): two slide blocks (9) are movably connected to the inner walls of the slide grooves provided on the upper surface of the base (1); Limit rods (3): two limit rods (3) are respectively fixed to the top outer walls of the two sliders (9) by pins; Extension plates (10): the two extension plates (10) are movably connected to the circumferential outer walls of the two limit rods (3), and an adjustment arm 1 (5) is fixed to the outer wall of one side of the two extension plates (10), and the two ends of the adjustment arm 1 (5) are movably connected to the adjustment arm 2 (6) and the adjustment arm 4 (19) through a rotating shaft, and the two adjustment arms 1 (5) are fixedly connected through a connecting plate 1 (4); Roller shaft (17): movably connected between two adjusting arms (19); Adjustment arm three (16): two ends of which are movably connected to adjustment arm two (6) and an end of adjustment arm four (19) away from adjustment arm one (5) through a rotating shaft; The leg support assembly comprises: U-shaped plate (18): fixed to the outer wall of one side of the connecting plate (4); A T-shaped rod (22) is movably connected to the inner wall of a through hole formed at one end of the U-shaped plate (18), and a spring (21) is fixed between the inner wall of one side of the T-shaped rod (22) and the inner wall of one side of the U-shaped plate (18) via a pin; The receiving plate (11) is fixed to one end of the T-shaped rod (22) by a pin; A toggle column (24): the toggle column (24) is movably connected to the inner wall of a through hole formed on the surface of the receiving plate (11), and the two ends of the toggle column (24) are fixed to the same leg support body (13) via pins; A mounting shell (23) is fixed to one end of the accommodating plate (11) by a pin, and a coil spring (25) is fixed between the inner wall of the mounting shell (23) and the circumferential outer wall of the toggle column (24) by a pin; The clamping plate (12) is fixed to the top outer wall of the U-shaped plate (18) by means of pins; The contact plate (20) is fixed to the bottom of the connecting plate 1 (4) by means of a pin.

2. The automotive electric seat leg adjuster assembly according to claim 1, characterized in that: The power assembly comprises an adjusting motor (28) and a second connecting plate (30), wherein the second connecting plate (30) is fixed between the two adjusting arms (5), the adjusting motor (28) is fixed to an outer wall of one side of the second connecting plate (30), and an output end of the adjusting motor (28) is connected to a driving gear (29) via a key.

3. The automotive electric seat leg adjuster assembly according to claim 2, characterized in that: The rotating shaft between the adjusting arm 1 (5) and the adjusting arm 2 (6) is fixed with a driving rod (14) by insertion, and the outer wall of the driving rod (14) is connected with a driven gear (27) meshing with the driving gear (29) by a key.

4. The automotive electric seat leg adjuster assembly according to claim 3, characterized in that: The power assembly further comprises an inner tooth plate (37), an outer tooth plate (39) and a bushing (40); the bushing (40) is fixedly connected to one end of the inner tooth plate (37) by riveting; a central cut block (42) is placed inside the outer tooth plate (39); a cut block (41) is placed on the top of the central cut block (42); and the inner tooth plate (37) and the outer tooth plate (39) are connected by inlaying.

5. The automotive electric seat leg adjuster assembly according to claim 4, characterized in that: The card entrances opened on the surfaces of the two cutting blocks (41) are installed with a tension spring (38) by pressing, the convex bump at the end of the inner tooth plate (37) is installed with a dial wheel (35) by carding, one end of the outer tooth plate (39) is fixed with a Persian cap (36) by riveting, and the outer wall of the outer tooth plate (39) is fixed with a shell (34) by riveting.

6. The automotive electric seat leg adjuster assembly according to claim 5, characterized in that: A housing (26) is fixed to the outer wall of one side of the regulating arm (5), and the housing (34) and the housing (26) are fixedly connected by embedding.

7. The automotive electric seat leg adjuster assembly according to claim 6, characterized in that: A slideway (33) is fixed to the top outer wall of the base (1), a vertical plate (32) is welded to the bottom outer wall of the adjusting arm (16), and a roller (31) is movably connected to the inner wall of the vertical plate (32).

8. The automotive electric seat leg adjuster assembly according to claim 7, characterized in that: A guide column (2) is fixed to the inner wall of a slide groove formed on the surface of one of the bases (1) via a pin.

9. The automotive electric seat leg adjuster assembly according to claim 8, characterized in that: A lead screw (8) is movably connected to the inner wall of a slide groove provided on the surface of the other base (1), and a partition (15) is welded to the inner wall of the slide groove, and a drive motor (7) is fixed to the outer wall of one side of the partition (15).

10. The automotive electric seat leg adjuster assembly according to claim 9, characterized in that: The outer circumferential wall of the roller shaft (17) is connected to a gear (48) via a key, and a tooth groove (43) for use with the gear (48) is provided on the back of the leg support body (13). Swing arms (44) are fixed to both ends of the roller shaft (17), and a foot support assembly is installed at the bottom of the two swing arms (44). The foot support assembly comprises a sleeve (46) and an electric telescopic rod (47). The sleeve (46) is fixed to the bottom of the swing arm (44), and the output end of the electric telescopic rod (47) is fixed to the inner wall of the top of the sleeve (46) via a pin, and the foot support body (45) is fixed to the bottom of the electric telescopic rod (47).

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