Multifunctional automobile seat leg support

Abstract

The multifunctional automobile seat leg support comprises a base, a lifting seat is arranged on the upper side face of the base, front connecting rods and rear connecting rods are rotationally connected to the front ends and the rear ends of the left side face and the right side face of the lifting seat respectively, and a connecting shaft inserted into the lifting seat is rotationally connected between the front connecting rods. A first lead screw frame is arranged on the upper side face of the base, a first lead screw is connected into the first lead screw frame in a threaded mode, and a first lead screw motor capable of driving the first lead screw to move front and back is arranged on the side face of the first lead screw frame. A rotating shaft is rotationally connected to the front end of the lifting seat, a rotating plate is arranged on the rotating shaft, and a rotating assembly capable of driving the rotating plate to rotate up and down is arranged in the lifting seat; an extension mechanism capable of stretching and retracting is arranged on the rotating plate; the pelvic bone lifting device has the advantage that the pelvic bone of a user can be lifted.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile seat leg supports and relates to a multifunctional automobile seat leg support. Background Art

[0002] A car seat leg support is an additional device for a car seat, mainly used to provide leg support and improve riding comfort. It is usually installed at the front or bottom of the seat and can be extended to support the passenger's calves.

[0003] The Chinese utility model patent with the authorization announcement number CN215793352U discloses a four-way leg support structure for a car seat, including an upper cover plate assembly, a multi-link riveting assembly and a leg support fixed connection bracket assembly, wherein the upper cover plate assembly includes an upper cover plate, an intermediate layer fixed plate, a guide rod, a connection bracket and a first lead screw, the multi-link riveting assembly includes a connecting rod mechanism and a connecting rod, the connecting rod mechanism is equipped with a motor fixing structure, the motor fixing structure is equipped with a foot support extension lead screw motor, the leg support fixed connection bracket assembly includes a leg support fixed connection bracket, the leg support fixed connection bracket The connecting bracket is installed with a fixed bracket connecting tube, and the fixed bracket connecting tube is installed with a leg support rotating screw motor fixing bracket, and the leg support rotating screw motor fixing bracket is installed with a leg support rotating screw motor. This technical solution can drive the second screw to move through the leg support rotating screw motor, and the movement of the second screw drives the multi-link riveting assembly to rotate, thereby realizing the rotation of the upper cover assembly; the foot support extension screw motor drives the first screw to rotate, thereby making the upper cover slide back and forth, but there is no device for lifting the user's pelvis in this technical solution, and the user may feel discomfort in the pelvis when using it. Utility Model Content

[0004] In view of the above problems, the utility model proposes a multifunctional car seat leg support, which well solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a multifunctional car seat leg support, comprising a base, a lifting seat is arranged on the upper side of the base, the front and rear ends of the left and right sides of the lifting seat are respectively rotatably connected with a front connecting rod and a rear connecting rod, the other ends of the front connecting rod and the rear connecting rod are rotatably connected to the base, a connecting shaft inserted in the lifting seat is rotatably connected between the two front connecting rods, a first screw frame is arranged on the upper side of the base, a first screw is connected to the first screw frame with an internal thread, the connecting shaft is rotatably connected to the first screw, and a first screw motor capable of driving the first screw to move forward and backward is arranged on the side of the first screw frame;

[0006] The front end of the lifting seat is rotatably connected to a rotating shaft, a rotating plate is arranged on the rotating shaft, and a rotating assembly capable of driving the rotating plate to rotate up and down is arranged in the lifting seat;

[0007] The rotating plate is provided with a retractable extension mechanism.

[0008] Furthermore, the rotating assembly includes a second screw frame arranged on the lower side of the lifting seat, a second screw motor arranged on the side of the second screw frame, a second screw threadedly connected in the second screw frame, and a connecting plate arranged on the rotating shaft, one end of the connecting plate is connected to the second screw, and the second screw motor can drive the second screw to move forward and backward in the second screw frame.

[0009] Furthermore, the extension mechanism includes a telescopic frame arranged on the side surface of the rotating plate, a telescopic plate slidably connected to the upper side surface of the telescopic frame, a third screw frame arranged on the lower side surface of the telescopic frame, a third screw motor arranged on the side surface of the third screw frame, and a third screw threadedly connected in the third screw frame, the lower side surface of the telescopic plate is threadedly connected to the third screw, and the third screw motor can drive the third screw to rotate in the third screw frame.

[0010] Furthermore, two springs are symmetrically arranged on the lower side of the rotating plate, and two ends of the springs are respectively connected to the rotating plate and the lifting seat.

[0011] Furthermore, the left and right ends of the front end of the lifting seat are symmetrically rotatably connected with two rotating connecting rods, and the other ends of the rotating connecting rods are fixedly connected to the telescopic frame and the rotating plate.

[0012] Furthermore, a control box is provided on the upper side of the base, and the control box is electrically connected to the first screw motor, the second screw motor and the third screw motor.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model achieves lifting of the lifting seat through the first screw motor, the first screw, the front connecting rod and the rear connecting rod, thereby achieving lifting of the user's pelvis, improving the practicality of the seat leg rest, and achieving adjustment of the angle and length of the seat leg rest through the rotating component and the extension mechanism, thereby improving the functionality of the seat leg rest. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 Rear view of.

[0018] In the figure, 1-base; 2-lifting seat; 3-rotating plate; 4-telescopic frame; 5-telescopic plate; 6-first screw motor; 7-rear connecting rod; 8-front connecting rod; 9-connecting shaft; 10-first screw; 11-second screw motor; 12-second screw; 13-rotating shaft; 14-connecting plate; 15-spring; 16-third screw; 17-third screw motor; 18-control box; 19-first screw frame; 20-second screw frame; 21-third screw frame; 22-rotating connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, a multifunctional car seat leg support comprises a base 1, a lifting seat 2 is arranged on the upper side of the base 1, front and rear ends of the left and right sides of the lifting seat 2 are rotatably connected with a front connecting rod 8 and a rear connecting rod 7 respectively, the other ends of the front connecting rod 8 and the rear connecting rod 7 are rotatably connected to the base 1 through bearings, a connecting shaft 9 inserted in the lifting seat 2 is rotatably connected between the two front connecting rods 8, a first screw frame 19 is fixed to the upper side of the base 1 by bolts, a first screw 10 is connected to the first screw frame 19 by internal threads, the connecting shaft 9 is rotatably connected to the first screw 10, a worm gear mechanism is arranged in the first screw frame 19, a first screw motor 6 is fixed to the side of the first screw frame 19 by bolts, and the output end of the first screw motor 6 can drive the first screw 10 to move forward and backward in the first screw frame 19 through the worm gear mechanism;

[0021] The front end of the lifting seat 2 is rotatably connected with a rotating shaft 13, and a rotating plate 3 is welded on the rotating shaft 13. A rotating assembly capable of driving the rotating plate 3 to rotate up and down is arranged in the lifting seat 2;

[0022] The rotating plate 3 is provided with a retractable extension mechanism; the above-mentioned rotating connection methods all adopt rotating connection methods such as bearings, hinges, etc. that can realize their work.

[0023] When in use, the output shaft of the first screw motor 6 drives the first screw 10 to move forward in the first screw frame 19 through the worm gear mechanism in the first screw frame 19, and at the same time, the front end of the first screw frame 10 drives the lifting seat 2 to move forward. Under the action of the front connecting rod 8 and the rear connecting rod 7, the lifting seat 2 moves forward and gradually rises, thereby realizing the lifting of the user's pelvis by the seat leg support, increasing the comfort of the user when in use; when the lifting seat 2 rises to the highest point, the front end of the front connecting rod 8 contacts the base 1, increasing the reliability of the lifting seat 2 after lifting, and improving the stability of the user when in use; when the lifting seat 2 is lifted, the rotating assembly can drive the rotating plate 3 to rotate, thereby realizing support for the user's thigh; when the angle adjustment of the rotating assembly is completed, the length of the seat leg support is extended by the extension mechanism, thereby supporting the user's calf and foot, satisfying the support and adjustment of the seat leg support for multiple positions of the user, and improving the practicality of the seat leg support when in use.

[0024] In this embodiment, the rotating assembly includes a second screw frame 20 fixed to the lower side of the lifting seat 2 by bolts, a second screw motor 11 fixed to the side of the second screw frame 20 by bolts, a second screw 12 threadedly connected to the second screw frame 20, and a connecting plate 14 welded to the rotating shaft 13, one end of the connecting plate 14 is hinged to one end of the second screw 12, and a worm gear mechanism is provided in the second screw frame 20. The output shaft of the second screw motor 11 can drive the second screw 12 to move forward and backward in the second screw frame 20 through the worm gear mechanism.

[0025] When in use, the second screw 12 pushes the connecting plate 14 to rotate under the drive of the worm gear mechanism and the second screw motor 11. When the connecting plate 14 rotates, it drives the rotating shaft 13 and the rotating plate 3 to rotate, thereby realizing the adjustment of the angle of the seat leg rest and increasing the comfort of the seat leg rest when in use.

[0026] In this embodiment, the extension mechanism includes a telescopic frame 4 fixed to the upper side of the rotating plate 3 by bolts, a telescopic plate 5 connected to the upper side of the telescopic frame 4 by sliding back and forth on a slide rail, a third screw frame 21 fixed to the lower side of the telescopic frame 4 by bolts, a third screw motor 17 fixed to the side of the third screw frame 21 by bolts, and a third screw 16 threadedly connected to the third screw frame 21. The lower side of the telescopic plate 5 is threadedly connected to the third screw 16, and a worm gear mechanism is provided in the third screw frame 21. The third screw motor 17 can drive the third screw 16 to rotate in the third screw frame 21 through the worm gear mechanism. When in use, the third screw 16 rotates under the drive of the worm gear mechanism and the third screw motor 17. At the same time, under the action of the thread, the telescopic plate 5 moves back and forth on the telescopic frame 4, thereby realizing the extension of the seat leg rest and improving the convenience of the user in adjusting the length of the seat leg rest.

[0027] In this embodiment, two springs 15 are symmetrically arranged on the lower side of the rotating plate 3, and the two ends of the spring 15 are respectively connected to the rotating plate 3 and the lifting seat 2. When in use, the spring 15 improves the connection strength between the lifting seat 2 and the rotating plate 3, ensuring the reliability of the seat leg support when in use.

[0028] In this embodiment, the left and right ends of the front end of the lifting seat 2 are symmetrically connected to each other by bearings, and the other ends of the rotating links 22 are connected and fixed to the telescopic frame 4 and the rotating plate 3. When in use, the telescopic frame 4, the rotating plate 3 and the lifting seat 2 are connected and fixed by the rotating links 22, which increases the connection strength between the three and ensures the stability of the telescopic frame 4 and the rotating plate 3 when they move with the lifting seat 2.

[0029] In this embodiment, a control box 18 is fixed to the upper side of the base 1 by bolts. The control box 18 is electrically connected to the first screw motor 6, the second screw motor 11 and the third screw motor 17. When in use, the control box 18 can be connected to an external control device or a vehicle computer, thereby improving the convenience of the user in controlling the first screw motor 6, the second screw motor 11 and the third screw motor 17.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional car seat leg support, comprising a base, characterized in that: A lifting seat is provided on the upper side of the base, and the front and rear ends of the left and right sides of the lifting seat are rotatably connected with a front connecting rod and a rear connecting rod respectively, and the other ends of the front connecting rod and the rear connecting rod are rotatably connected to the base, and a connecting shaft inserted in the lifting seat is rotatably connected between the two front connecting rods, and a first screw frame is provided on the upper side of the base, and a first screw is connected to the first screw frame with an internal thread, and the connecting shaft is rotatably connected to the first screw, and a first screw motor that can drive the first screw to move forward and backward is provided on the side of the first screw frame; The front end of the lifting seat is rotatably connected to a rotating shaft, a rotating plate is arranged on the rotating shaft, and a rotating assembly capable of driving the rotating plate to rotate up and down is arranged in the lifting seat; The rotating plate is provided with a retractable extension mechanism.

2. The multifunctional car seat leg support according to claim 1, characterized in that: The rotating assembly includes a second screw frame arranged on the lower side of the lifting seat, a second screw motor arranged on the side of the second screw frame, a second screw threadedly connected to the second screw frame, and a connecting plate arranged on the rotating shaft, one end of the connecting plate is connected to the second screw, and the second screw motor can drive the second screw to move forward and backward in the second screw frame.

3. The multifunctional car seat leg support according to claim 1, characterized in that: The extension mechanism includes a telescopic frame arranged on the side of the rotating plate, a telescopic plate slidably connected to the upper side of the telescopic frame, a third screw frame arranged on the lower side of the telescopic frame, a third screw motor arranged on the side of the third screw frame, and a third screw threadedly connected in the third screw frame. The lower side of the telescopic plate is threadedly connected to the third screw, and the third screw motor can drive the third screw to rotate in the third screw frame.

4. The multifunctional car seat leg support according to claim 1, characterized in that: Two springs are symmetrically arranged on the lower side of the rotating plate, and two ends of the springs are respectively connected to the rotating plate and the lifting seat.

5. The multifunctional car seat leg support according to claim 3, characterized in that: The left and right ends of the front end of the lifting seat are symmetrically rotatably connected with two rotating connecting rods, and the other ends of the rotating connecting rods are connected and fixed to the telescopic frame and the rotating plate.

6. The multifunctional car seat leg support according to claim 1, characterized in that: A control box is arranged on the upper side of the base, and the control box is electrically connected to the first screw motor, the second screw motor and the third screw motor.

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