Self-balancing table plate for automobile seat

Abstract

The utility model relates to a self-balancing table plate for an automobile seat. Comprising a small table board body folded and unfolded on the back face of a seat backrest, a four-bar mechanism connected with the small table board body and a seat backrest framework, two driving motors installed in the small table board body and used for driving the small table board body to be folded and unfolded on the seat backrest framework, and a gyroscope installed on the small table board body and used for detecting the angle of the small table board. The four-connecting-rod mechanism comprises two upper connecting rods and two lower connecting rods, the two lower connecting rods drive the small table plate body to be unfolded or folded on the seat backrest framework, the gyroscope is used for sensing whether the table plate is horizontal or not, and the vehicle controller controls the two driving motors to drive the four-connecting-rod mechanism to conduct self-balancing adjustment; the self-balancing seat has the advantages that the small table plate is connected to the seat framework through the four-connecting-rod mechanism, the motor drives the lower connecting rods on the left side and the right side to achieve rotation of the table plate, whether the table plate is horizontal or not is sensed through sensors such as the gyroscope arranged in the table plate, then a signal is fed back to the controller, and self-balancing adjustment is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to car seat technical field especially relates to a self -balancing table board for car seat. BACKGROUND

[0002] At present in the market on vehicle small table board, all are through manual operation or electric control setting fixed angle, but in the seat backrest angle adjustment time, and vehicle in the process of driving meet the slope time, small table board angle can be inclined, lead to article on the table board will slip, or water cup is easy to pour down etc. UTILITY MODEL CONTENTS

[0003] In view of above problem, the utility model discloses a self -balancing table board for car seat for making small table board always be in self -balancing state to overcome the deficiency of prior art.

[0004] The utility model provides a self -balancing table board for car seat, include: the small table board body that is retracted on the back of seat backrest, the four connecting rod mechanism of connecting small table board body and seat backrest skeleton, install in the small table board body inside for drive small table board body retract on seat backrest skeleton two drive motor and install on small table board body for detecting small table board angle gyroscope, four connecting rod mechanism includes: two upper links and two lower links, two upper links one end is hinged in the upper portion of small table board body back, two upper links other end is hinged on seat backrest skeleton, two lower links one end is hinged in the lower portion of small table board body back, two lower links other end is hinged on seat backrest skeleton, two drive motor drive shaft is connected with two gear box input, the output shaft at two gear box output end is solid with two lower links, two drive motor drive two lower links of four connecting rod mechanism through gear box, two lower links drive small table board body retract or set up on seat backrest skeleton, the gyroscope is used for sensing whether the table board is horizontal, and then feedback signal gives vehicle controller (MCU), and vehicle controller controls two drive motor drive four connecting rod mechanism and carries out self -balancing adjustment.

[0005] As the utility model's preferred, the output shaft of gear box is fixed to small table board body through ball bearing.

[0006] As the utility model's preferred, small table board body includes: small table board skeleton, the upper casing and lower casing on the both sides of small table board skeleton, two upper links and two lower links pass through the avoidance hole of lower casing and are hinged on small table board skeleton.

[0007] As the preferred of the utility model, the gear box comprises: a first stage transmission of a worm and gear, a second stage transmission of a second gear shaft and a second bevel gear, a third stage transmission of a third gear shaft and a third bevel gear, and a fourth stage transmission of a fourth gear shaft and a fourth bevel gear, the worm of the first stage transmission is connected with the driving shaft of the driving motor, the first stage transmission drives the second stage transmission, the third stage transmission and the fourth stage transmission in turn, and the output shaft of the fourth stage transmission is fixedly connected with the lower connecting rod and drives the lower connecting rod.

[0008] The utility model discloses the beneficial effect is as follows:

[0009] 1, the small table board of the utility model is connected to the seat framework through four connecting rod mechanisms, and the four connecting rods on the left and right sides are divided into upper and lower connecting rods. The motor is arranged in the table board, and the motor drives the lower connecting rods on the left and right sides to realize the rotation of the table board. The gyroscope and other sensors arranged in the table board sense whether the table board is horizontal, and then feedback signals to the controller to realize self-balancing adjustment.

[0010] 2, the utility model discloses the double motor drive is adopted, and the double motor drives the lower connecting rods on the two sides respectively. The motor output shaft directly drives the connecting rod, and the output shaft is fixed to the table board framework through the ball bearing, so that the operation is more stable.

[0011] 3, the utility model discloses the bevel gear in the gear box realizes self-locking, and then prolongs the service life of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other purposes and results of the utility model will be more apparent and easy to understand by referring to the following description in conjunction with the drawings and with the more comprehensive understanding of the utility model. In the drawings:

[0013] Fig. 1 It is the overall structure schematic diagram in the embodiment.

[0014] Fig. 2 It is the overall structure schematic diagram of the gear box in the embodiment.

[0015] Fig. 3 It is the overall structure front view of the gear box in the embodiment.

[0016] Mark: small table board body 1, driving motor 2, upper connecting rod 3, lower connecting rod 4, gear box 5, first stage transmission 6, second stage transmission 7, third stage transmission 8, fourth stage transmission 9, small table board framework 10, ball bearing 11. DETAILED DESCRIPTION

[0017] Reference Figs. 1-3As shown, the self-balancing table board for car seat provided by the embodiment comprises a small table board body 1 folded on the back of the seat back, a four-bar linkage connecting the small table board body 1 and the seat back skeleton, two drive motors 2 installed inside the small table board body 1 for driving the small table board body 1 to fold on the seat back skeleton, and a gyroscope (not shown) installed on the small table board body 1 for detecting the angle of the small table board, the four-bar linkage comprises two upper connecting rods 3 and two lower connecting rods 4, one end of the two upper connecting rods 3 is hinged to the upper part of the back of the small table board body 1, the other end of the two upper connecting rods 3 is hinged to the seat back skeleton, one end of the two lower connecting rods 4 is hinged to the lower part of the back of the small table board body 1, the other end of the two lower connecting rods 4 is hinged to the seat back skeleton, the drive shafts of the two drive motors 2 are connected with the input ends of two gear boxes 5, the output shafts at the output ends of the two gear boxes 5 are fixedly connected with the two lower connecting rods 4, the two drive motors 2 drive the two lower connecting rods 4 of the four-bar linkage through the gear boxes 5, the two lower connecting rods 4 drive the small table board body 1 to unfold or fold on the seat back skeleton, the gyroscope is used for sensing whether the table board is horizontal, and then feeding back a signal to a vehicle controller (MCU), the vehicle controller controls the two drive motors 2 to drive the four-bar linkage to self-balance and adjust.

[0018] Further, the small table board body 1 in the embodiment comprises a small table board skeleton 10, an upper shell and a lower shell located on the upper and lower sides of the small table board skeleton, and the two upper connecting rods 3 and the two lower connecting rods 4 are hinged to the small table board skeleton through the avoiding holes of the lower shell.

[0019] Further, the output shafts of the gear boxes 5 in the embodiment are fixed to the small table board body 1 through ball bearings 11. The gear box 5 comprises a first-stage transmission 6 composed of a worm and a worm gear, a second-stage transmission 7 composed of a second-stage gear shaft and a second-stage helical gear, a third-stage transmission 8 composed of a third-stage gear shaft and a third-stage helical gear, and a fourth-stage transmission 9 composed of a fourth-stage gear shaft and a fourth-stage helical gear. The worm of the first-stage transmission 6 is connected with the drive shaft of the drive motor 2, and the first-stage transmission 6 drives the second-stage transmission 7, the third-stage transmission 8 and the fourth-stage transmission 9 in sequence. The output shaft of the fourth-stage transmission 9 is fixedly connected with the lower connecting rod 4 and drives the lower connecting rod.

[0020] Further, the gyroscope in the embodiment is installed near the controller at the middle position of the small table board body 1.

[0021] Working principle: The small table board body 1 is connected to the seat back skeleton through the four-bar linkage, wherein the four-bar linkages on the left and right sides are divided into upper and lower connecting rods. The drive motors 2 are arranged inside the small table board body 1, the small table board body 1 is rotated by driving the lower connecting rods 4 on the left and right sides through the two drive motors 2, and the gyroscope arranged inside the small table board body 1 is used as a sensor to sense whether the small table board body 1 is horizontal, and then feeds back a signal to the controller, so as to realize self-balancing adjustment.

[0022] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A self-balancing table board for a car seat, characterized by, The utility model relates to a small table board body unfolded on the back of seat back, four connecting rod mechanisms connecting the small table board body and seat back skeleton, two drive motors installed in the small table board body interior for driving the small table board body to unfold on the seat back skeleton, and a gyroscope installed on the small table board body for detecting the small table board angle, the four connecting rod mechanisms include two upper connecting rods and two lower connecting rods, one end of the two upper connecting rods is hinged on the upper part of the small table board body back, the other end of the two upper connecting rods is hinged on the seat back skeleton, one end of the two lower connecting rods is hinged on the lower part of the small table board body back, the other end of the two lower connecting rods is hinged on the seat back skeleton, the drive shaft of two drive motors is connected with the input end of two gear boxes, the output shaft at the output end of two gear boxes is fixedly connected with two lower connecting rods, two drive motors drive the two lower connecting rods of four connecting rod mechanisms through gear boxes, and two lower connecting rods drive the small table board body to unfold or fold on the seat back skeleton, the gyroscope is used for sensing whether the table board is horizontal, and then feeds back signals to the vehicle controller, and the vehicle controller controls two drive motors to drive four connecting rod mechanisms to carry out self-balancing adjustment. The output shaft of the gear box is fixed to the small table board body through a ball bearing.

2. The self-balancing table board for a car seat according to claim 1, wherein The small table board body includes a small table board skeleton, an upper shell and a lower shell located on the upper and lower sides of the small table board skeleton, and two upper connecting rods and two lower connecting rods are hinged to the small table board skeleton through the avoiding holes of the lower shell.

3. The self-balancing table board for a car seat according to claim 1, wherein The gear box includes a first-stage transmission composed of a worm and a worm gear, a second-stage transmission composed of a second-stage gear shaft and a second-stage helical gear, a third-stage transmission composed of a third-stage gear shaft and a third-stage helical gear, and a fourth-stage transmission composed of a fourth-stage gear shaft and a fourth-stage helical gear, the worm of the first-stage transmission is connected with the drive shaft of the drive motor, the first-stage transmission drives the second-stage transmission, the third-stage transmission and the fourth-stage transmission in sequence, and the output shaft of the fourth-stage transmission is fixedly connected with the lower connecting rod and drives the lower connecting rod.

4. The self-balancing table board for a car seat according to claim 1, wherein ​

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