Ceiling screen sliding and folding device and vehicle

Abstract

The utility model relates to a ceiling screen sliding and folding device and a vehicle, which are applied to the field of automobiles, the ceiling screen sliding and folding device comprises a mounting frame, a sliding groove is formed in the mounting frame, a vehicle-mounted ceiling screen is connected in the sliding groove in a sliding mode through a first connecting unit, and the vehicle-mounted ceiling screen is rotatably connected to the mounting frame through a second connecting unit. The mounting frame is provided with a driving unit used for driving the vehicle-mounted ceiling screen to turn over and synchronously slide along the sliding grooves. The vehicle-mounted ceiling screen has the advantages that the driving unit is started, the vehicle-mounted display screen is driven to slide synchronously along the sliding groove and can be turned over at the same time, in-vehicle space occupied by the vehicle-mounted ceiling screen in the turning-over process is reduced in a sliding and turning-over mode, the flexibility of the vehicle-mounted ceiling screen in the operation process is improved, and the driving unit is utilized to drive the vehicle-mounted display screen to slide synchronously. The thickness of the whole device 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 automobiles, in particular to a ceiling screen sliding and folding device and a vehicle. Background Technique

[0002] In the context of the rapid development of new energy vehicles, the demand for various intelligent products such as in-vehicle electric ceiling screens is increasing day by day. The in-vehicle ceiling screen is a display screen used to provide functions such as video entertainment or navigation, and is usually installed on the inner ceiling wall of the vehicle for the entertainment of rear passengers.

[0003] Publication No. CN220639715U discloses a multi-stage gear transmission mechanism, a rotating mechanism and a ceiling screen, including: a worm for connecting to the 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 gears run with large noise, and the multi-stage gear rotating mechanism is arranged outside the rotating part and perpendicular to the rotating part, requiring a large layout space. Due to space limitations, it is difficult to set a large reduction ratio, making the overall device too thick while it is difficult to meet the requirement of large torque output, resulting in low operating efficiency. Summary of the Invention

[0005] In order to help solve the problems in the related technology that the method of using gears to drive the ceiling screen to flip occupies a large use space, has large transmission noise, is difficult to achieve a large reduction ratio, and results in low operating efficiency, a ceiling screen sliding and folding device provided by the utility model adopts the following technical solutions: including a mounting frame, a chute is opened on the mounting frame, an in-vehicle ceiling screen is slidably connected in the chute through a first connection unit, the in-vehicle ceiling screen is rotatably connected to the mounting frame through a second connection unit, and a driving unit is provided on the mounting frame for driving the in-vehicle ceiling screen to fold and simultaneously slide synchronously along the chute.

[0006] In a specific feasible embodiment, the driving unit includes a driving lead screw and a driven lead screw rotatably connected to the mounting frame, a transmission block is threadedly connected to the outer edge of the driving lead screw, the driven lead screw passes through the transmission block and is threadedly connected to the transmission block, and a driving component is provided on the mounting frame for driving the driving lead screw to rotate.

[0007] In a specific feasible embodiment, the driving component includes a driving motor provided on the mounting frame, and one end of the driving lead screw is connected to the output end of the driving motor.

[0008] In a specific possible implementation manner, the lead of the driven screw is greater than the lead of the driving screw.

[0009] In a specific possible implementation scheme, the first connecting unit includes a slider that is slidably connected in a slide groove and matches the slide groove, the slider is provided with a connecting hole, and a rotating shaft that matches the connecting hole is provided on the surface of the vehicle-mounted ceiling screen facing the slider, and the rotating shaft is passed through and rotatably connected in the connecting hole.

[0010] In a specific feasible implementation scheme, a mounting groove is provided on the sliding block, a gap-eliminating plate is embedded in the mounting groove, a placement groove is provided at the bottom of the mounting groove facing the mounting frame, a compression spring is embedded in the placement groove, the compression spring is pressed tightly between the bottom of the placement groove and the gap-eliminating plate, and the rotating shaft is located on the side of the gap-eliminating plate close to the compression spring.

[0011] In a specific feasible implementation scheme, the second connecting unit includes a first connecting shaft fixedly sleeved on one end of the driven screw rod, a connecting rod is provided on the outer edge of the first connecting shaft, a second connecting shaft is provided on the end of the connecting rod away from the first connecting shaft, a connecting frame is provided on the vehicle-mounted ceiling screen, two rotating grooves matching the second connecting shaft are opened on the connecting frame, and the two ends of the second connecting shaft are respectively rotatably connected in the two rotating grooves.

[0012] In a specific possible implementation scheme, a support seat is provided on the mounting frame, a support hole matching the first connecting shaft is opened on the support seat, and the first connecting shaft passes through the support hole and is rotatably connected to the support seat.

[0013] In a specific possible implementation manner, a bushing matching the rotating groove is provided in the rotating groove, and the bushing is pressed tightly between the second coupling shaft and the connecting frame.

[0014] The utility model also provides a vehicle, comprising the above-mentioned ceiling screen sliding and folding device.

[0015] In summary, the utility model has at least the following beneficial technical effects:

[0016] 1. Start the driving unit to drive the vehicle-mounted ceiling screen to slide synchronously along the slide groove and fold at the same time. The sliding and folding method reduces the space inside the vehicle occupied by the vehicle-mounted ceiling screen during the folding process, improves the flexibility of the vehicle-mounted ceiling screen during operation, and uses the driving unit to reduce the thickness of the overall device, making the structure compact, reducing the space occupied, meeting the use needs when the space is narrow, and improving the operation efficiency.

[0017] 2. Start the drive motor to drive the active lead screw to rotate. The transmission block on the active lead screw reciprocates along the active lead screw as the active lead screw rotates. The driven lead screw rotates as the transmission block moves. Since the lead of the driven lead screw is greater than that of the active lead screw, the deceleration of the output end of the driven lead screw is achieved, and the opening and closing speed of the in-vehicle ceiling screen is controlled, solving the problem of the layout of the deceleration device in the case where the radial space is limited and the available space is in the shape of a slender strip. The transmission method of the lead screw has low transmission noise and high position control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic diagram of the overall structure in the open state of the embodiment of the present invention.

[0019] Figure 2 FIG. is a schematic diagram of the overall structure in the closed state of the embodiment of the present invention.

[0020] Figure 3 FIG. is a schematic diagram for embodying the structure of the active lead screw in the embodiment of the present invention.

[0021] Figure 4 FIG. is a schematic diagram for embodying the structure of the backlash elimination plate in the embodiment of the present invention.

[0022] Figure 5 FIG. is a schematic diagram for embodying the structure of the support seat in the embodiment of the present invention.

[0023] Reference numerals: 1, mounting bracket; 2, chute; 3, in-vehicle ceiling screen; 4, first connection unit; 5, second connection unit; 6, active lead screw; 7, driven lead screw; 8, transmission block; 9, drive motor; 10, connection bracket; 11, slider; 12, rotating shaft; 13, mounting groove; 14, backlash elimination plate; 15, placement groove; 16, compression spring; 17, first coupling shaft; 18, connecting rod; 19, second coupling shaft; 20, support seat; 21, support hole; 22, protective shell. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will Figures 1-5 further describe the present invention in detail with reference to the

[0025] The embodiment of the present invention discloses a ceiling screen sliding and folding device.

[0026] Refer to Figure 1 , Figure 2 and Figure 3, the ceiling-mounted screen sliding and folding device includes a mounting frame 1. Two sliding grooves 2 are oppositely provided on the mounting frame 1. A vehicle-mounted ceiling screen 3 is slidably connected in the sliding grooves 2 through a first connection unit 4. The vehicle-mounted ceiling screen 3 is located between the two sliding grooves 2. The vehicle-mounted ceiling screen 3 is rotationally connected to the mounting frame 1 through a second connection unit 5. A driving unit is provided on the mounting frame 1 for driving the vehicle-mounted ceiling screen 3 to fold while sliding synchronously along the sliding grooves 2. In the embodiment of the present invention, a protective shell 22 can be provided on the mounting frame 1, and the driving unit is integrally arranged on the inner edge of the protective shell 22. The protective shell 22 plays a protective role, reducing the possibility of external interference with the driving unit and damage to the vehicle-mounted ceiling screen 3.

[0027] Therefore, when the driving unit is started, the vehicle-mounted ceiling screen 3 can be folded while sliding synchronously along the sliding grooves 2. By means of sliding and folding, the interior space occupied by the vehicle-mounted ceiling screen 3 during the folding process is reduced, the flexibility of the vehicle-mounted ceiling screen 3 during operation is improved. By using the driving unit, the thickness of the overall device is reduced, the structure is compact, the occupied space is reduced, the use requirements in a narrow space are met, and the operation efficiency is improved.

[0028] Refer to Figure 3 and Figure 4 , the driving unit includes a driving lead screw 6 and a driven lead screw 7 that are rotationally connected to the mounting frame 1. The driving lead screw 6 and the driven lead screw 7 in the embodiment of the present invention are arranged in parallel. A transmission block 8 is threadedly connected to the outer edge of the driving lead screw 6. The driven lead screw 7 passes through the transmission block 8 and is threadedly connected to the transmission block 8. A driving assembly for driving the driving lead screw 6 to rotate is provided on the mounting frame 1. The driving assembly includes a driving motor 9 provided on the mounting frame 1, and one end of the driving lead screw 6 is connected to the output end of the driving motor 9. The driving lead screw 6 and the driven lead screw 7 in the embodiment of the present invention can adopt a lead screw structure with self-locking design, so that the vehicle-mounted ceiling screen 3 will not shake even when the driving motor 9 is not started, improving the stability of the vehicle-mounted ceiling screen 3.

[0029] Refer to Figure 3 and Figure 4 , the lead of the driven lead screw 7 is greater than the lead of the driving lead screw 6. If the lead of the driving lead screw 6 is S1 and the lead of the driven lead screw 7 is S2, when the power is transmitted along the power transmission path, the speed ratio of the driven lead screw 7 to the driving lead screw 6 is S1:S2, so as to achieve a large reduction ratio reduction, realize the deceleration of the output end of the driven lead screw 7. The driven lead screw 7 outputs power to drive the vehicle-mounted ceiling screen 3 to flip, realizing the control of the opening and closing speed of the vehicle-mounted ceiling screen 3, improving the stability of the vehicle-mounted ceiling screen 3 during the flipping process, and facilitating the storage of the vehicle-mounted ceiling screen 3 by switching the opening and closing states of the vehicle-mounted ceiling screen 3, improving the utilization rate of the interior space of the vehicle.

[0030] Therefore, start the drive motor 9 to drive the rotation of the driving lead screw 6. The transmission block 8 on the driving lead screw 6 reciprocates along the driving lead screw 6 as the driving lead screw 6 rotates. The driven lead screw 7 rotates as the transmission block 8 moves. During the rotation of the driven lead screw 7, the vehicle-mounted ceiling screen 3 is driven to fold through the second connection unit 5. Since the lead of the driven lead screw 7 is greater than that of the driving lead screw 6, deceleration at the output end of the driven lead screw 7 is achieved. The way of the cooperation transmission between the lead screw and the transmission block 8 can achieve stepless adjustment, with high precision in controlling the opening and closing speed of the vehicle-mounted ceiling screen 3 and the position control of the vehicle-mounted ceiling screen 3. It solves the problem of the layout of the deceleration device in the case where the radial space is limited and the available space is in a slender shape. The way of lead screw transmission has low transmission noise and high position control precision.

[0031] Referring to Figure 3 and Figure 4 , the first connection unit 4 includes a slider 11 slidably connected in the chute 2 and matching the size of the chute 2. A connection hole is provided on the slider 11. A rotating shaft 12 matching the size of the connection hole is fixedly connected to the surface of the vehicle-mounted ceiling screen 3 facing the slider 11. The rotating shaft 12 passes through and is rotatably connected in the connection hole. Therefore, during the rotation of the driven lead screw 7, the vehicle-mounted ceiling screen 3 is driven to fold through the second connection unit 5. During the folding process of the vehicle-mounted ceiling screen 3, the slider 11 is driven to synchronously slide along the chute 2 through the rotating shaft 12, improving the stability of the vehicle-mounted ceiling screen 3 during the folding process.

[0032] Referring to Figure 4 and Figure 5 , an installation groove 13 is provided on the slider 11, and a backlash elimination plate 14 is embedded in the installation groove 13. In the embodiment of the present utility model, there is a gap between the backlash elimination plate 14 and the groove wall of the installation groove 13. Two cylindrical placement grooves 15 are provided at the groove bottom of the installation groove 13 facing the mounting frame 1. Compression springs 16 are respectively embedded in the two placement grooves 15. The compression springs 16 are abutted between the bottom of the placement groove 15 and the backlash elimination plate 14. The rotating shaft 12 is located on the side of the backlash elimination plate 14 close to the compression spring 16 and between the two placement grooves 15.

[0033] Therefore, if the slider 11 wears due to long-term frequent reciprocating sliding along the chute 2, there will be a gap between the slider 11 and the chute 2. By using the fact that the compression spring 16 stores mechanical energy when compressed, a reaction force is provided to the backlash elimination plate 14 through the compression spring 16 to eliminate the gap between the slider 11 and the chute 2, reducing the possibility of shaking of the vehicle-mounted ceiling screen 3 and improving the stability of the vehicle-mounted ceiling screen 3 during the folding and sliding processes.

[0034] Referring to Figure 3 and Figure 4The second connecting unit 5 includes a first connecting shaft 17 fixedly sleeved on one end of the driven screw rod 7, the outer edge of the first connecting shaft 17 is fixedly connected to a connecting rod 18, and the end of the connecting rod 18 away from the first connecting shaft 17 is fixedly connected to a second connecting shaft 19, the first connecting shaft 17 and the second connecting shaft 19 are arranged in parallel, and a connecting frame 10 is installed on the vehicle-mounted ceiling screen 3, and the connecting frame 10 is provided with two rotating grooves matching the size of the second connecting shaft 19, and the two ends of the second connecting shaft 19 are rotatably connected in the two rotating grooves respectively, and a bushing matching the size of the rotating groove is placed in the rotating groove, and the bushing is tightly pressed between the second connecting shaft 19 and the connecting frame 10. In the rotating groove, the bushing can be pressed between the second connecting shaft 19 and the connecting frame 10, the second connecting shaft 19 has a slight interference fit with the bushing and has rotation damping, forming a relatively smooth contact surface, reducing the friction during rotation, reducing the gap and vibration caused by friction, thereby improving the stability of the second connecting shaft 19 during rotation and extending the service life of the second connecting shaft 19.

[0035] Therefore, the driven screw 7 drives the first connecting shaft 17 to rotate during the rotation process, and the first connecting shaft 17 drives the connecting rod 18 and the second connecting shaft 19 to rotate synchronously. The second connecting unit 5 plays a role in transmitting force, thereby driving the vehicle-mounted ceiling screen 3 to fold. During the folding process, the vehicle-mounted ceiling screen 3 drives the slider 11 to slide synchronously along the slide groove 2 through the rotating shaft 12, thereby improving the stability of the vehicle-mounted ceiling screen 3 during the folding process.

[0036] Reference Figure 3 and Figure 4 A support seat 20 is integrally formed on the mounting frame 1, and a support hole 21 matching the size of the first connecting shaft 17 is opened on the support seat 20. The first connecting shaft 17 passes through the support hole 21 and is rotatably connected to the support seat 20. The support seat 20 supports the first connecting shaft 17, reduces the possibility of position deviation of the first connecting shaft 17 during rotation, and improves the stability of the driven screw 7 when driving the first connecting shaft 17 to rotate.

[0037] The implementation principle of the embodiment of the utility model is as follows: Start the drive motor 9 to drive the rotation of the active lead screw 6. The transmission block 8 on the active lead screw 6 reciprocates along the active lead screw 6 as the active lead screw 6 rotates. The driven lead screw 7 rotates as the transmission block 8 moves. During the rotation of the driven lead screw 7, the first coupling shaft 17 is driven to rotate. The first coupling shaft 17 drives the connecting rod 18 and the second coupling shaft 19 to rotate synchronously, realizing that during the folding process of the vehicle-mounted ceiling screen 3, the slider 11 is driven to slide synchronously along the sliding groove 2 through the rotating shaft 12. The double-degree-of-freedom drive adjustment of the vehicle-mounted ceiling screen 3 can be realized by the sliding and folding method, reducing the space occupied by the vehicle-mounted ceiling screen 3 in the vehicle during the folding process, improving the flexibility of the vehicle-mounted ceiling screen 3 during operation. By using the drive unit, the thickness of the overall device is reduced, the structure is compact, the occupied space is reduced, and the use requirements in a narrow space are met. The transmission method using the active lead screw 6 and the driven lead screw 7 has low transmission noise and high position control accuracy, improving the operation efficiency.

[0038] The utility model also discloses a vehicle, comprising the above-mentioned ceiling screen sliding and folding device.

[0039] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, 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 ceiling screen sliding and folding device, characterized in that: The invention comprises a mounting frame (1), wherein a slide groove (2) is provided on the mounting frame (1), a vehicle-mounted ceiling screen (3) is slidably connected in the slide groove (2) via a first connecting unit (4), the vehicle-mounted ceiling screen (3) is rotationally connected to the mounting frame (1) via a second connecting unit (5), and the mounting frame (1) is provided with a driving unit for driving the vehicle-mounted ceiling screen (3) to fold and synchronously slide along the slide groove (2).

2. The ceiling screen sliding and folding device according to claim 1, wherein: The drive unit comprises an active screw (6) and a driven screw (7) which are rotatably connected to the mounting frame (1); the outer edge of the active screw (6) is threadedly connected to a transmission block (8); the driven screw (7) passes through the transmission block (8) and is threadedly connected to the transmission block (8); and a drive assembly for driving the active screw (6) to rotate is provided on the mounting frame (1).

3. The ceiling screen sliding and folding device according to claim 2, characterized in that: The driving assembly comprises a driving motor (9) arranged on a mounting frame (1), and one end of the active screw rod (6) is connected to an output end of the driving motor (9).

4. The ceiling screen sliding and folding device according to claim 2, wherein: The lead of the driven screw (7) is greater than the lead of the driving screw (6).

5. The ceiling screen sliding and folding device according to claim 4, wherein: The first connection unit (4) comprises a slider (11) which is slidably connected in the slide groove (2) and matches the slide groove (2); a connection hole is provided on the slider (11); a rotating shaft (12) which matches the connection hole is provided on the surface of the vehicle-mounted ceiling screen (3) facing the slider (11); the rotating shaft (12) is passed through and rotatably connected in the connection hole.

6. The ceiling screen sliding and folding device according to claim 5, wherein: The slider (11) is provided with a mounting groove (13), a backlash-eliminating plate (14) is embedded in the mounting groove (13), a placement groove (15) is provided at the bottom of the mounting groove (13) facing the mounting frame (1), a compression spring (16) is embedded in the placement groove (15), the compression spring (16) is pressed tightly between the bottom of the placement groove (15) and the backlash-eliminating plate (14), and the rotating shaft (12) is located on a side of the backlash-eliminating plate (14) close to the compression spring (16).

7. The ceiling screen sliding and folding device according to claim 6, characterized in that: The second connecting unit (5) comprises a first connecting shaft (17) fixedly sleeved on one end of the driven screw rod (7); a connecting rod (18) is provided on the outer edge of the first connecting shaft (17); a second connecting shaft (19) is provided on the end of the connecting rod (18) away from the first connecting shaft (17); a connecting frame (10) is provided on the vehicle-mounted ceiling screen (3); two rotating grooves matching the second connecting shaft (19) are opened on the connecting frame (10); and the two ends of the second connecting shaft (19) are respectively rotatably connected in the two rotating grooves.

8. The ceiling screen sliding and folding device according to claim 6, characterized in that: The mounting frame (1) is provided with a support seat (20), the support seat (20) is provided with a support hole (21) matching the first connecting shaft (17), and the first connecting shaft (17) passes through the support hole (21) and is rotatably connected to the support seat (20).

9. The ceiling screen sliding and folding device according to claim 7, characterized in that: A bushing matching the rotating groove is arranged in the rotating groove, and the bushing is tightly pressed between the second connecting shaft (19) and the connecting frame (10).

10. A vehicle, characterized in that: It comprises the ceiling screen sliding and folding device as described in any one of claims 1 to 9.

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