Turnover adjusting device, vehicle-mounted display screen and vehicle

Abstract

The utility model relates to a turnover adjusting device, a vehicle-mounted display screen and a vehicle, which are applied to the field of mechanical transmission, and comprise a fixing frame, a bearing mechanism is rotatably connected to the fixing frame, a driving mechanism for driving the bearing mechanism to rotate relative to the fixing frame is arranged on the bearing mechanism, and the driving mechanism comprises a driven screw rod arranged on the fixing frame. A driving lead screw is rotationally connected into the bearing mechanism and connected with a transmission block, the driven lead screw penetrates through the transmission block, and a driving unit used for driving the driving lead screw is further arranged in the bearing mechanism. The device has the advantages that the driving mechanism is started to drive the bearing mechanism to rotate relative to the fixing frame, so that the bearing mechanism is folded, the angle and the position of the bearing mechanism are convenient to adjust, the flexibility of the bearing mechanism is improved, the driving mechanism is arranged in the bearing mechanism, the thickness of the whole device is reduced, and the cost is reduced. The occupied space is reduced, the use requirement when the space is narrow is met, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, in particular to a folding and adjusting device, an in-vehicle display screen and a vehicle. Background Art

[0002] Under the background of the rapid development of new energy vehicles, the demand for various intelligent products such as in-vehicle electric ceiling screens, electric adjustable footrests, and electric folding table boards is increasing day by day.

[0003] Publication No. CN220639715U discloses a multi-stage gear transmission mechanism, a rotating mechanism and a ceiling screen, including: a worm for connecting to a motor shaft; a power output shaft for outputting power; a multi-stage gear set including N gear sets sequentially connected between the worm and the power output shaft in sequence, where N is a natural number greater than or equal to 4 and less than or equal to 8; along the direction from the worm to the power output shaft, the transmission ratio of the multi-stage gear set decreases.

[0004] During the use of the above multi-stage gear transmission mechanism, the multi-stage gear rotating mechanism is arranged outside the rotating part and perpendicular to the rotating part. The multi-stage gear set needs to occupy a large space inside the vehicle, making the overall device too thick and difficult to meet the demand for large torque output, resulting in low operating efficiency. Summary of the Invention

[0005] In order to help solve the problem that the multi-stage gear transmission mechanism for driving the rotating part to rotate in the related art is arranged outside the rotating part, which needs to occupy a large space inside the vehicle, making the overall device too thick and difficult to meet the demand for large torque output, resulting in low operating efficiency, a folding and adjusting device provided by the utility model adopts the following technical solutions: including a fixed frame, a bearing mechanism is rotatably connected to the fixed frame, a driving mechanism for driving the bearing mechanism to rotate relative to the fixed frame is arranged on the bearing mechanism, the driving mechanism includes a driven lead screw arranged on the fixed frame, a driving lead screw is rotatably connected inside the bearing mechanism, the driving lead screw is connected to a transmission block, the driven lead screw passes through the transmission block, and a driving unit for driving the driving lead screw is further included inside the bearing mechanism.

[0006] In a specific feasible embodiment, the driving lead screw is threadedly connected with a nut through an outer edge, the nut is rotatably connected with a transmission block, the driven lead screw is threadedly connected with the transmission block, and the transmission block is slidably connected with the bearing mechanism through a stabilizing unit.

[0007] In a specific feasible embodiment, the lead of the driven lead screw is greater than the lead of the driving lead screw.

[0008] In a specific feasible embodiment, the driving unit includes a driving motor disposed within the bearing mechanism, and one end of the driving lead screw is connected to the output end of the driving motor.

[0009] In a specific feasible embodiment, the stabilizing unit includes a guide rail disposed within the bearing mechanism. A slider that matches the guide rail is slidably connected to the guide rail. The transmission block is disposed on the slider, and a limiting component for preventing the slider from detaching from the guide rail is provided on the slider.

[0010] In a specific feasible embodiment, the limiting component includes a limiting block disposed on the slider. A sliding groove that matches the slider is formed on the surface of the guide rail facing the slider. A limiting groove is formed on the groove wall of the sliding groove. The slider is slidably connected within the sliding groove and the limiting block is inserted into the limiting groove.

[0011] In a specific feasible embodiment, a support seat is provided within the bearing mechanism. Both ends of the driving lead screw are rotatably connected to the support seat through bearings.

[0012] In a specific feasible embodiment, connecting shafts are respectively provided at both ends of the driven lead screw. The two connecting shafts respectively pass through the bearing mechanism partially and are connected to the fixing frame.

[0013] In a specific feasible embodiment, a bushing is provided between the bearing mechanism and the connecting shaft, and the bushing is pressed tightly between the bearing mechanism and the connecting shaft.

[0014] In a specific feasible embodiment, a driving circuit board is provided within the bearing mechanism. A control circuit is provided on the driving circuit board, and one end of the control circuit departing from the driving circuit board is connected to the driving unit.

[0015] In a specific feasible embodiment, a main wire hole is formed on the connecting shaft. A secondary wire hole is formed on the hole wall of the main wire hole. The control circuit passes through the secondary wire hole and the main wire hole in sequence and is connected to the driving unit.

[0016] In a specific feasible embodiment, a vehicle-mounted display screen is also disclosed, which includes the above-mentioned folding and adjusting device.

[0017] In a specific feasible embodiment, a vehicle is also disclosed, which includes the above-mentioned folding and adjusting device.

[0018] In summary, the present utility model has at least the following beneficial technical effects: By starting the drive mechanism, the bearing mechanism is driven to rotate relative to the fixed frame, thereby realizing the folding of the bearing mechanism, facilitating the adjustment of the angle and position of the bearing mechanism, improving the flexibility of the bearing mechanism. By arranging the drive mechanism inside the bearing mechanism, the overall thickness of the device is reduced, the occupied space is decreased, the usage requirements in a narrow space are met, and the operation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 FIG. is a schematic diagram for showing the structure of the transmission block in an embodiment of the present utility model.

[0021] Figure 3 FIG. is Figure 2 an enlarged schematic view of part A in FIG.

[0022] Reference numerals: 1, fixed frame; 2, bearing mechanism; 3, driven lead screw; 4, driving lead screw; 5, nut; 6, transmission block; 7, driving motor; 8, guide rail; 9, slider; 10, limiting block; 11, sliding groove; 12, limiting groove; 13, support seat; 14, connecting shaft; 15, driving circuit board; 16, control circuit; 17, main wiring hole; 18, auxiliary wiring hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present utility model in detail Figures 1-3 with reference to the accompanying drawings.

[0024] An embodiment of the present utility model discloses a folding and adjusting device.

[0025] Referring to Figure 1 and Figure 2 , the folding and adjusting device includes a fixed frame 1. The folding and adjusting device can be installed and fixed to a required position, such as a body sheet metal structural member, through the fixed frame 1. A bearing mechanism 2 is rotatably connected to the fixed frame 1. The bearing mechanism 2 in the embodiment of the present utility model can be various products such as an in-vehicle display screen, an in-vehicle electric ceiling screen, a foot panel of an electric adjustable footrest, a table board panel of an electric folding table, etc. A drive mechanism for driving the bearing mechanism 2 to rotate relative to the fixed frame 1 is arranged inside the bearing mechanism 2.

[0026] Referring to Figure 1 and Figure 2, the driving mechanism includes a driven lead screw 3 arranged on the fixed frame 1. A driving lead screw 4 is rotatably connected inside the bearing mechanism 2. The driving lead screw 4 and the driven lead screw 3 are arranged in parallel. A nut 5 is threadedly connected to the outer edge of the driving lead screw 4. A transmission block 6 is rotatably connected to the nut 5. In the embodiment of the present invention, a number of reinforcing ribs are fixedly connected to the transmission block 6, enhancing the structural strength of the transmission block 6 and improving the stability during the rotation of the transmission block 6. The driven lead screw 3 passes through the transmission block 6 and is threadedly connected to the transmission block 6. A driving unit for driving the rotation of the driving lead screw 4 is arranged inside the bearing mechanism 2. The transmission block 6 is slidably connected to the bearing mechanism 2 through a stabilizing unit. In the embodiment of the present invention, the lead pitch of the driven lead screw 3 is greater than that of the driving lead screw 4, reducing the speed during the rotation of the transmission block 6, thereby reducing the speed during the rotation of the bearing mechanism 2, and solving the problem of the layout of the deceleration device in the case of limited radial space and an available space in the shape of a slender strip.

[0027] Therefore, start the driving unit to drive the rotation of the driving lead screw 4 at the output end of the driving unit. The nut 5 on the driving lead screw 4 reciprocates along the driving lead screw 4 as the driving lead screw 4 rotates. The nut 5 drives the transmission block 6 to move synchronously. Since the driven lead screw 3 passes through the transmission block 6 and is threadedly connected to the transmission block 6, the transmission block 6 utilizes the thread pair existing between the transmission block 6 and the driven lead screw 3 during the movement, thereby realizing the rotation of the transmission block 6. During the rotation of the transmission block 6, the bearing mechanism 2 is driven to rotate synchronously through the stabilizing unit, causing the bearing mechanism 2 to have an angular deflection relative to the fixed frame 1, realizing the folding of the bearing mechanism 2 and improving the flexibility of the bearing mechanism 2.

[0028] Refer to Figure 1 and Figure 2 , the driving unit includes a driving motor 7 arranged inside the bearing mechanism 2. One end of the driving lead screw 4 is connected to the output end of the driving motor 7. Therefore, drive the driving motor 7 to drive the rotation of the driving lead screw 4 at the output end of the driving motor 7. By arranging the driving motor 7 inside the bearing mechanism 2 for driving, the driving lead screw 4 and the driving motor 7 are in the same plane, reducing the practical space occupied by the driving unit, reducing the overall device thickness while maintaining the overall strength, realizing the large torque output requirement, reducing the running noise while improving the running efficiency. In addition, the driving unit in the embodiment of the present invention can be replaced by a synchronous belt drive, and the driving lead screw 4 and the driving unit can also be replaced by other linear driving mechanisms according to the actual situation, such as a rack and pinion mechanism.

[0029] Refer to Figure 2 and Figure 3, the stabilizing unit includes a guide rail 8 bolted to the bearing mechanism 2. The guide rail 8 is arranged in parallel with the driven lead screw 3. A slider 9 matching the size of the guide rail 8 is slidably connected to the guide rail 8. The transmission block 6 is arranged on the slider 9. A limiting component for preventing the slider 9 from detaching from the guide rail 8 is arranged on the slider 9. In the embodiment of the present utility model, the number of guide rails 8 can be set to multiple according to actual situations, and sliders 9 matching the size of the guide rails 8 are correspondingly arranged on the multiple guide rails 8, thereby further improving the stability of the transmission block 6 during operation. The limiting component includes a limiting block 10 arranged on the slider 9. A sliding groove 11 matching the size of the slider 9 is formed on the surface of the guide rail 8 facing the slider 9. A limiting groove 12 is formed on the groove wall of the sliding groove 11. The slider 9 is slidably connected in the sliding groove 11 and the limiting block 10 is inserted into the limiting groove 12.

[0030] Therefore, during the movement of the transmission block 6, the slider 9 is driven to slide in the sliding groove 11. Since the transmission block 6 is located between the driven lead screw 3 and the guide rail 8, the load is reduced, and the stability of the transmission block 6 during movement is improved. The limiting groove 12 limits the position of the limiting block 10, reducing the possibility of the limiting block 10 detaching from the limiting groove 12, and improving the stability of the slider 9 when moving in the sliding groove 11.

[0031] Refer to Figure 1 and Figure 2 , a support seat 13 is fixedly connected inside the bearing mechanism 2. The two ends of the driving lead screw 4 are respectively rotatably connected to the support seat 13 through bearings. Therefore, the friction between the driving lead screw 4 and the support seat 13 is reduced through the bearings, and at the same time, the driving lead screw 4 is supported and positioned, enabling it to rotate smoothly. The two ends of the driven lead screw 3 can also be correspondingly provided with bearing structures with reference to the driving lead screw 4.

[0032] Refer to Figure 1 and Figure 2 , connecting shafts 14 are respectively fixedly sleeved on the two ends of the driven lead screw 3. The two connecting shafts 14 respectively pass through the bearing mechanism 2 partially and are connected to the fixed frame 1, balancing the gravity load of the bearing mechanism 2, and further improving the stability of the bearing mechanism 2 during rotation. A bushing is installed between the bearing mechanism 2 and the connecting shaft 14. The bushing is pressed tightly between the bearing mechanism 2 and the connecting shaft 14. The bushing forms a protective barrier between the bearing mechanism 2 and the connecting shaft 14, reducing the direct contact and friction between the two, thereby prolonging the service life. The bushing also has a certain shock absorption and noise reduction function, capable of absorbing and dispersing vibration energy, and reducing the noise and vibration generated when the bearing mechanism 2 rotates.

[0033] Refer to Figure 1 and Figure 2, a drive circuit board 15 is provided inside the bearing mechanism 2. A control line 16 is connected to the drive circuit board 15. One end of the control line 16 departing from the drive circuit board 15 is connected to the drive unit. The drive circuit board 15 emits a control signal to control the start and stop of the drive unit. A main wire hole 17 is formed on the connecting shaft 14. An auxiliary wire hole 18 is formed on the hole wall of the main wire hole 17. Chamfers are provided on the sharp edges of the main wire hole 17 and the auxiliary wire hole 18 in the embodiment of the present utility model, reducing the possibility of the sharp edges of the main wire hole 17 and the auxiliary wire hole 18 scratching the control line 16. The control line 16 sequentially passes through the auxiliary wire hole 18 and the main wire hole 17 and then is connected to the drive unit, enabling the control line 16 to route inside the connecting shaft 14. While the connecting shaft 14 protects the control line 16, it further optimizes the space inside the bearing mechanism 2 and improves the space utilization rate.

[0034] The implementation principle of the embodiment of the present utility model is as follows: Start the drive unit to drive the rotation of the driving lead screw 4 at the output end of the drive unit. The nut 5 on the driving lead screw 4 reciprocates along the driving lead screw 4 as the driving lead screw 4 rotates. The nut 5 drives the transmission block 6 to move synchronously. Since the driven lead screw 3 passes through the transmission block 6 and is threadedly connected to the transmission block 6, the transmission block 6 rotates by utilizing the thread pair existing between the transmission block 6 and the driven lead screw 3 during the movement process. During the rotation of the transmission block 6, the bearing mechanism 2 is driven to rotate synchronously through the stabilizing unit, causing the bearing mechanism 2 to deflect at an angle relative to the fixed frame 1, realizing the folding of the bearing mechanism 2, facilitating the adjustment of the angle and position of the bearing mechanism 2, improving the flexibility of the bearing mechanism 2. Compared with the driving method realized outside the bearing mechanism 2 in the related art, by arranging the drive mechanism inside the bearing mechanism 2, the noise generated during operation is reduced, the overall thickness of the device is thinned, the structure is simple, and the occupied space is reduced, which can meet the use requirements when the space is narrow and improve the operation efficiency.

[0035] The present utility model also discloses a vehicle-mounted display screen, including the above-mentioned folding and adjusting device.

[0036] The present utility model also discloses a vehicle, including the above-mentioned folding and adjusting device.

[0037] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A folding adjustment device, characterized in that: The invention comprises a fixed frame (1), a bearing mechanism (2) being rotatably connected to the fixed frame (1), a driving mechanism for driving the bearing mechanism (2) to rotate relative to the fixed frame (1) being provided on the bearing mechanism (2), the driving mechanism comprising a driven screw (3) arranged on the fixed frame (1), a driving screw (4) being rotatably connected inside the bearing mechanism (2), the driving screw (4) being connected to a transmission block (6), the driven screw (3) passing through the transmission block (6), and the bearing mechanism (2) also comprising a driving unit for driving the driving screw (4).

2. The folding adjustment device according to claim 1, characterized in that: The active screw rod (4) is connected to a nut (5) via an outer edge thread, a transmission block (6) is rotatably connected to the nut (5), the driven screw rod (3) is connected to the transmission block (6) via a thread, and the transmission block (6) is slidably connected to the bearing mechanism (2) via a stabilizing unit.

3. The folding adjustment device according to claim 2, characterized in that: The lead of the driven screw (3) is greater than the lead of the driving screw (4).

4. The folding adjustment device according to claim 2, characterized in that: The driving unit comprises a driving motor (7) arranged in the supporting mechanism (2), and one end of the active screw rod (4) is connected to the output end of the driving motor (7).

5. The folding adjustment device according to claim 2, characterized in that: The stabilizing unit comprises a guide rail (8) arranged in the bearing mechanism (2), a slider (9) matching the guide rail (8) being slidably connected to the guide rail (8), the transmission block (6) being arranged on the slider (9), and a limiting component for preventing the slider (9) from detaching from the guide rail (8) being provided on the slider (9).

6. The folding adjustment device according to claim 5, characterized in that: The limit assembly comprises a limit block (10) arranged on the slider (9); a sliding groove (11) matching the slider (9) is provided on the surface of the guide rail (8) facing the slider (9); a limit groove (12) is provided on the groove wall of the sliding groove (11); the slider (9) is slidably connected in the sliding groove (11) and the limit block (10) is inserted in the limit groove (12).

7. The folding adjustment device according to claim 2, characterized in that: A support seat (13) is provided in the bearing mechanism (2), and both ends of the active screw rod (4) are rotatably connected to the support seat (13) via bearings.

8. The folding adjustment device according to claim 2, characterized in that: Connecting shafts (14) are respectively provided at both ends of the driven screw rod (3), and the two connecting shafts (14) respectively partially pass through the bearing mechanism (2) and are connected to the fixing frame (1).

9. The folding adjustment device according to claim 8, characterized in that: A bushing is provided between the bearing mechanism (2) and the connecting shaft (14), and the bushing is tightly pressed between the bearing mechanism (2) and the connecting shaft (14).

10. The folding adjustment device according to claim 8, characterized in that: A driving circuit board (15) is provided in the bearing mechanism (2), a control circuit (16) is provided on the driving circuit board (15), and one end of the control circuit (16) facing away from the driving circuit board (15) is connected to the driving unit.

11. The folding adjustment device according to claim 10, characterized in that: The connecting shaft (14) is provided with a main wiring hole (17), the hole wall of the main wiring hole (17) is provided with a secondary wiring hole (18), and the control circuit (16) is connected to the drive unit after passing through the secondary wiring hole (18) and the main wiring hole (17) in sequence.

12. A vehicle-mounted display screen, characterized in that: It comprises the folding adjustment device as claimed in any one of claims 1 to 11.

13. A vehicle, characterized in that: It comprises the folding adjustment device as claimed in any one of claims 1 to 11.

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