Seat back plate with leg support structure

Abstract

The utility model discloses a seat back plate with a leg support structure, relates to the technical field of seat back plates, and provides the following scheme aiming at the problems that in the prior art, an interval is reserved between a pulled-out leg support and a leg of a human body, and the comfort is not enough, the seat back plate comprises a backrest, and the bottom of the backrest is rotatably connected with a seat plate; fixing plates are fixed to the two sides of the bottom of the seat plate, a leg supporting mechanism is connected between the two fixing plates, and the leg supporting mechanism comprises a first push rod motor and a U-shaped frame fixed to one end of the first push rod motor. The first push rod motor extends to be matched with the fixing plate slidably connected with the U-shaped frame, so that the U-shaped frame extends out of the bottom of the seat plate, the second push rod motor extends to drive the connecting block and the connecting frame to push the supporting cushion, and therefore the inclination angle of the supporting cushion is adjusted; through the telescopic length of the first push rod motor and the telescopic length of the second push rod motor, the supporting pad and the legs of the human body are attached and supported.

Description

Technical Field

[0001] The utility model relates to the technical field of seat backboards, in particular to a seat backboard with a leg support structure. Background Art

[0002] With the continuous development of the automotive industry, people have put forward higher requirements for the comfort of car seats. More and more car seats have added retractable or foldable leg rests at the front to support the legs of passengers of different heights and relieve leg fatigue.

[0003] Traditional car seat cushions are generally connected to the bottom of the seat with the help of plastic parts. The leg rest can be pulled out from the bottom of the seat by pulling. However, there is a gap between the pulled out leg rest and the human body's legs, which makes it less comfortable. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the present invention provides a seat back panel with a leg support structure, which overcomes the deficiencies of the existing technology and effectively solves the problem in the existing technology that the leg support that is pulled out leaves a gap between the legs of the human body and the comfort is insufficient.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A seat back with a leg support structure includes a backrest, the bottom of the backrest is rotatably connected to a seat plate, and fixed plates are fixed on both sides of the bottom of the seat plate, a leg support mechanism is connected between the two fixed plates, and the leg support mechanism includes a first push rod motor, a U-shaped frame fixed to one end of the first push rod motor, a support pad connected to the inner walls on both sides of the U-shaped frame, a movable plate arranged on one side of the support pad, a second push rod motor fixed to the outer wall of one side of the movable plate, a connecting block fixed to one end of the second push rod motor, and a connecting frame rotatably connected to the connecting block.

[0007] By extending the first push rod motor and cooperating with the fixed plate slidably connected to the U-shaped frame, the U-shaped frame is extended from the bottom of the seat plate. By extending the second push rod motor, the connecting block and the connecting frame are driven to push the support pad, thereby adjusting the inclination angle of the support pad. The support pad is made to fit and support the legs of the human body through the telescopic length of the first push rod motor and the telescopic length of the second push rod motor.

[0008] Preferably, a sliding groove is provided on the outer wall of the two fixing plates on the side close to each other, and the sliding groove forms a sliding fit with the U-shaped frame.

[0009] The U-shaped frame slides along the slide groove, and the two fixed plates guide and support the movement of the U-shaped frame.

[0010] Preferably, a mounting seat is fixed to the tail end of the first push rod motor, and the mounting seat is fixed to the bottom of the seat plate by bolts.

[0011] The first push rod motor is installed and fixed by the mounting base.

[0012] Preferably, connecting rods are fixed to both ends of the movable plate, and the connecting rods are rotatably connected to the U-shaped frame.

[0013] The movable plate rotates freely in the U-shaped frame through the connecting rod.

[0014] Preferably, a protruding rod is fixed to one end of the outer walls on both sides of the support pad, and the protruding rod is rotatably connected to the U-shaped frame.

[0015] The supporting pad is freely rotated in the U-shaped frame through the protruding rod.

[0016] Preferably, the bottom of the support pad is an inclined surface structure, and the connecting frame is fixed to the inclined surface of the support pad by bolts.

[0017] The second push rod motor is extended and retracted to drive the connecting block and the connecting frame to push and pull the support pad, thereby adjusting the inclination angle of the support pad so that the support pad fits and supports the legs of the human body.

[0018] The beneficial effects of the utility model are:

[0019] By extending the first push rod motor and cooperating with the fixed plate slidingly connected to the U-shaped frame, the U-shaped frame is extended from the bottom of the seat plate, and by cooperating with the extension of the second push rod motor, the connecting block and the connecting frame are driven to push the support pad, thereby adjusting the inclination angle of the support pad. By the telescopic length of the first push rod motor and the telescopic length of the second push rod motor, the support pad is made to fit and support the legs of the human body, which effectively solves the problem in the prior art that the leg rest pulled out leaves a gap between the legs of the human body and the comfort is insufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a seat backboard with a leg support structure proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a leg support mechanism of a seat back panel with a leg support structure proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the movable plate structure of a seat back panel with a leg support structure proposed by the present invention.

[0023] In the figure: 1. backrest; 2. seat; 3. fixed plate; 4. leg support mechanism; 5. first push rod motor; 6. mounting base; 7. U-shaped frame; 8. support pad; 9. movable plate; 10. connecting rod; 11. second push rod motor; 12. connecting block; 13. connecting frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example:

[0026] Reference Figure 1-3 A seat backboard with a leg support structure includes a backrest 1, the bottom of the backrest 1 is rotatably connected to a seat board 2, fixed plates 3 are fixed on both sides of the bottom of the seat board 2, a leg support mechanism 4 is connected between the two fixed plates 3, and the leg support mechanism 4 includes a first push rod motor 5, a U-shaped frame 7 fixed to one end of the first push rod motor 5, a support pad 8 connected to the inner walls of both sides of the U-shaped frame 7, a movable plate 9 provided on one side of the support pad 8, a second push rod motor 11 fixed to the outer wall of one side of the movable plate 9, a connecting block 12 fixed to one end of the second push rod motor 11, and a connecting frame 13 rotatably connected to the connecting block 12;

[0027] The outer walls of the two fixed plates 3 on the side close to each other are both provided with a sliding groove, which forms a sliding fit with the U-shaped frame 7. The U-shaped frame 7 slides along the sliding groove, and the two fixed plates 3 guide and support the movement of the U-shaped frame 7. The tail end of the first push rod motor 5 is fixed with a mounting seat 6, which is fixed to the bottom of the seat plate 2 by bolts, and the first push rod motor 5 is installed and fixed by the mounting seat 6;

[0028] Both ends of the movable plate 9 are fixed with connecting rods 10, which are rotatably connected to the U-shaped frame 7. The movable plate 9 can rotate freely in the U-shaped frame 7 through the connecting rods 10. One end of the outer wall on both sides of the supporting pad 8 is fixed with a convex rod, which is rotatably connected to the U-shaped frame 7. The supporting pad 8 can rotate freely in the U-shaped frame 7 through the convex rod. The bottom of the supporting pad 8 is a sloped structure. The connecting frame 13 is fixed to the slope of the supporting pad 8 by bolts. The second push rod motor 11 is extended and retracted to drive the connecting block 12 and the connecting frame 13 to push and pull the supporting pad 8, thereby adjusting the inclination angle of the supporting pad 8 so that the supporting pad 8 can fit and support the legs of the human body.

[0029] Working principle:

[0030] During operation, the U-shaped frame 7 is extended from the bottom of the seat plate 2 by extending the first push rod motor 5 in cooperation with the fixed plate 3 slidably connected to the U-shaped frame 7, and the second push rod motor 11 is extended to drive the connecting block 12 and the connecting frame 13 to push the support pad 8, thereby adjusting the inclination angle of the support pad 8. Through the telescopic length of the first push rod motor 5 and the telescopic length of the second push rod motor 11, the support pad 8 is made to fit and support the legs of the human body.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seat back with a leg support structure, comprising a backrest (1), characterized in that: The bottom of the backrest (1) is rotatably connected to a seat plate (2), and fixed plates (3) are fixed on both sides of the bottom of the seat plate (2), a leg support mechanism (4) is connected between the two fixed plates (3), and the leg support mechanism (4) includes a first push rod motor (5), a U-shaped frame (7) fixed to one end of the first push rod motor (5), a support pad (8) connected to the inner walls of both sides of the U-shaped frame (7), a movable plate (9) arranged on one side of the support pad (8), a second push rod motor (11) fixed to the outer wall of one side of the movable plate (9), a connecting block (12) fixed to one end of the second push rod motor (11), and a connecting frame (13) rotatably connected to the connecting block (12).

2. The seat back plate with a leg support structure according to claim 1, characterized in that: A sliding groove is provided on the outer walls of the two fixing plates (3) on the sides close to each other, and the sliding groove forms a sliding fit with the U-shaped frame (7).

3. The seat back plate with a leg support structure according to claim 1, characterized in that: A mounting seat (6) is fixed to the tail end of the first push rod motor (5), and the mounting seat (6) is fixed to the bottom of the seat plate (2) by means of bolts.

4. The seat back plate with a leg support structure according to claim 1, characterized in that: Connecting rods (10) are fixed to both ends of the movable plate (9), and the connecting rods (10) are rotatably connected to the U-shaped frame (7).

5. The seat back plate with a leg support structure according to claim 1, characterized in that: A protruding rod is fixed to one end of the outer wall on both sides of the supporting pad (8), and the protruding rod is rotatably connected to the U-shaped frame (7).

6. The seat back with a leg support structure according to claim 1, characterized in that: The bottom of the support pad (8) is a sloped structure, and the connecting frame (13) is fixed to the slope of the support pad (8) by bolts.

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