Driving mechanism, vehicle-mounted display screen and vehicle

Abstract

The invention relates to a driving mechanism, a vehicle-mounted display screen and a vehicle, which are applied to the field of mechanical transmission and comprise a mounting part, a first connecting rod, a second connecting rod, a third connecting rod and a driving assembly. The driving assembly drives the third connecting rod to move, and the mounting part, the first connecting rod, the third connecting rod and the second connecting rod are distributed in a quadrangle shape and are rotationally connected with one another, so that when the included angle between the third connecting rod and the first connecting rod is changed, the position of the mounting part and the included angle between the mounting part and the horizontal plane are changed; therefore, the purpose of adjusting the position of the display screen is achieved, namely the position of the display screen is adjusted from the first state shown in the figure to the second state shown in the figure or the position of the display screen is adjusted from the second state shown in the figure to the first state shown in the figure. The angle and the position of the display screen can be adjusted only through one driving assembly, and the manufacturing cost of the driving mechanism is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical transmission, in particular to a driving mechanism, a vehicle-mounted display screen and a vehicle. BACKGROUND

[0002] Under the background of the rapid development of the automobile industry, the demand for various intelligent products such as vehicle-mounted display screens, vehicle-mounted electric ceiling screens, and electric folding table plates is increasing.

[0003] A vehicle-mounted display screen angle adjusting device is disclosed in Chinese Patent No. 201721062090.2, which comprises a mounting frame, a first angle adjusting block, a second angle adjusting member, a first driving device in transmission connection with the first angle adjusting block, and a second driving device in transmission connection with the second angle adjusting member. The mounting frame is provided with a first guide rail, the first angle adjusting block is assembled on the first guide rail, the first angle adjusting block is provided with a second guide rail staggered and crossed with the first guide rail, and the second angle adjusting member is assembled on the second guide rail. A vehicle-mounted display screen mechanism and a car are also provided, which comprise a vehicle-mounted display screen and the aforementioned vehicle-mounted display screen angle adjusting device. The back of the vehicle-mounted display screen is provided with a connecting block, the connecting block is ball-hinged with the mounting frame, and the connecting block is ball-hinged with each display screen support part. The first driving device and the second driving device drive the first angle adjusting block and the second adjusting block to drive the vehicle-mounted display screen to adjust the angle in different directions. The display angle is adjusted conveniently and stably supports the vehicle-mounted display screen. Although the angle of the vehicle-mounted display screen can be flexibly adjusted, two driving devices need to be set, which is high in cost.

[0004] Therefore, there is an urgent need for a driving mechanism, a vehicle-mounted display screen and a vehicle. SUMMARY

[0005] In order to help solve the problems in the related art, the present application provides a driving mechanism, which adopts the following technical solution: comprising a mounting part, a first connecting rod, a second connecting rod, a third connecting rod and a driving assembly;

[0006] The first connecting rod is rotationally connected with the mounting part through a first rotating shaft, and rotationally connected with the third connecting rod through a second rotating shaft; The second connecting rod is rotationally connected with the mounting part through a third rotating shaft, and rotationally connected with the third connecting rod through a fourth rotating shaft; The first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are coaxial, and the axis of the first rotating shaft, the axis of the second rotating shaft, the axis of the third rotating shaft and the axis of the fourth rotating shaft are respectively located at four vertices of a quadrilateral; The driving assembly is used to drive the third connecting rod to move, so as to adjust the included angle between the third connecting rod and the first connecting rod.

[0007] In one specific implementation, the driving component includes a carrier, a slider, and a driving member. The slider is slidably disposed on the carrier, and the driving member is used to drive the slider to perform linear motion on the carrier. The first connecting rod is rotatably connected to the carrier via a fifth rotating shaft, which is located on the side of the second rotating shaft away from the first rotating shaft. The slider is rotatably connected to the third connecting rod via a sixth rotating shaft, and the sixth rotating shaft is disposed between the second rotating shaft and the fourth rotating shaft; The axial direction of the fifth rotating shaft and the axial direction of the sixth rotating shaft are both consistent with the axial direction of the first rotating shaft.

[0008] In one specific implementation, a guide rod is provided on the carrier, and the slider is sleeved on the guide rod.

[0009] In one specific implementation, the driving component includes a lead screw and a power assembly, the lead screw being disposed on the carrier, and the axial direction of the lead screw being aligned with the axial direction of the guide rod; The slider is sleeved on the lead screw and threadedly connected to the lead screw.

[0010] In one specific implementation, the power assembly includes a motor, the output end of which is provided with a worm gear, and a worm wheel is coaxially provided on the lead screw, the worm gear and the worm wheel meshing.

[0011] In one specific implementation, there are two second links arranged in parallel, and the third link is arranged between the two second links.

[0012] In one specific implementation, a connecting plate is provided between the two second links.

[0013] In one specific implementation, the third link includes an intermediate plate and two connecting arms parallel to the intermediate plate, and each of the two connecting arms is rotatably connected to the two second links through a fourth pivot. The first connecting rod is rotatably connected to the intermediate plate via the second rotating shaft; The slider is disposed between the two connecting arms, and the slider is rotatably connected to the two connecting arms via the fifth rotating shaft.

[0014] In one specific implementation, an in-vehicle display screen includes the aforementioned drive mechanism.

[0015] In one specific implementation, a vehicle includes the aforementioned drive mechanism.

[0016] In summary, the present invention has at least the following beneficial technical effects: In use, the display screen is mounted on the mounting part with bolts; the drive assembly is mounted on the vehicle; when the screen position needs to be adjusted, the third link is driven by the drive assembly. Since the mounting part, the first link, the third link, and the second link are arranged in a quadrilateral shape and are rotatably connected to each other, when the angle between the third link and the first link changes, the position of the mounting part and its angle with the horizontal plane change, thereby achieving the purpose of adjusting the position of the display screen, i.e., adjusting from the first state shown in the figure to the second state shown in the figure, or adjusting from the second state shown in the figure to the first state shown in the figure; thus, only one drive assembly is needed to achieve the adjustment of the display screen angle and position, reducing the manufacturing cost of the drive mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure in the first state of the present invention; Figure 2 This is a structural schematic diagram of the second state of the present invention; Figure 3 This is a side view of the first link, second link, third link, and carrier of the present invention; Figure 4 This is a schematic diagram of the structure of the first link, the second link, the third link, and the drive assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the driving component of the present invention; Figure 6 This is a schematic diagram of the structure of the second link of the present invention; Figure 7 This is a schematic diagram of the structure of the first and third connecting rods of the present invention.

[0018] Reference numerals: 100, Mounting part; 200, First connecting rod; 300, Second connecting rod; 400, Third connecting rod; 410, Intermediate plate; 420, Connecting arm; 500, Carrier; 510, Guide rod; 600, Slider; 700, Lead screw; 710, Worm gear; 800, Motor; 810, Worm; 900, Connecting plate; A, First rotating shaft; B, Second rotating shaft; C, Third rotating shaft; D, Fourth rotating shaft; E, Fifth rotating shaft; F, Sixth rotating shaft. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0021] The following is in conjunction with the appendix Figures 1-7 The specific structure of the drive mechanism described in this application is described in detail.

[0022] Reference Figure 1 and Figure 3 The drive mechanism includes a mounting part 100, a first link 200, a second link 300, a third link 400, and a drive assembly; The first link 200 is rotatably connected to the mounting part 100 via the first rotating shaft A, and the first link 200 is rotatably connected to the third link 400 via the second rotating shaft B; The second link 300 is rotatably connected to the mounting part 100 via the third rotating shaft C, and the second link 300 is rotatably connected to the third link 400 via the fourth rotating shaft D; The first, second, third, and fourth rotating shafts are aligned axially. The axis centers of the first, second, third, and fourth rotating shafts are located at the four vertices of a quadrilateral, respectively. In other words, the mounting part 100, the first connecting rod 200, the third connecting rod 400, and the second connecting rod 300 are connected sequentially and arranged in a quadrilateral shape. The drive assembly is used to drive the third link 400 to move, thereby adjusting the angle between the third link 400 and the first link 200.

[0023] Based on the above structure, in use, the display screen is mounted on the mounting part 100 with bolts; the drive assembly is mounted on the vehicle; when the screen position needs to be adjusted, the third link 400 is driven to move by the drive assembly. Since the mounting part 100, the first link 200, the third link 400, and the second link 300 are arranged in a quadrilateral shape and are rotatably connected to each other, when the included angle between the third link 400 and the first link 200 changes, the position of the mounting part 100 and its included angle with the horizontal plane change, thereby achieving the purpose of adjusting the position of the display screen, i.e., from... Figure 1 The first state shown is as follows: Figure 2 The second state adjustment shown or from, as Figure 2 The second state shown is as follows Figure 1 The first state adjustment shown achieves the goal of adjusting the angle and position of the display screen with only one drive component, reducing the manufacturing cost of the drive mechanism.

[0024] like Figure 4 and Figure 5 As shown, the drive assembly includes a carrier 500, a slider 600, and a drive component. The slider 600 is slidably mounted on the carrier 500. The drive component drives the slider 600 to move linearly on the carrier 500. A guide rod 510 is provided on the carrier 500, and the slider 600 is sleeved on the guide rod 510. The drive component includes a lead screw 700 and a power component. The lead screw 700 is mounted on the carrier 500 (the axis of the lead screw 700 is perpendicular to the axis of the first rotating shaft), and the axial direction of the lead screw 700 is consistent with the axial direction of the guide rod 510. During installation, the carrier 500 is mounted on a vehicle. The slider 600 is sleeved on the lead screw 700 and threadedly connected to the lead screw 700. Thus, the movement of the slider 600 is guided by the guide rod 510, and at least two guide rods 510 can be provided, respectively located on both sides of the lead screw 700, to make the slider 600 more stable. When sliding is required, the slider 600 is driven to move by a drive component to rotate the lead screw 700, thereby driving the slider 600 to move along the axial direction of the lead screw 700. Since the first connecting rod 200 is rotatably connected to the carrier 500 through the fifth rotating shaft E, the fifth rotating shaft is located on the side of the second rotating shaft away from the first rotating shaft. The slider 600 is rotatably connected to the third connecting rod 400 through the sixth rotating shaft F, the sixth rotating shaft is located between the second rotating shaft and the fourth rotating shaft. The axial directions of the fifth rotating shaft and the sixth rotating shaft are both consistent with the axial direction of the first rotating shaft. Therefore, when the slider 600 slides, the third connecting rod 400 rotates on the carrier 500, thereby causing the second connecting rod 300 and the first connecting rod 200 to rotate on the third connecting rod 400. The positions of the second connecting rod 300 and the first connecting rod 200 change simultaneously, thereby adjusting the position and angle of the mounting part 100 and the display screen on the mounting part 100.

[0025] like Figure 5As shown, in order to drive the lead screw 700 to rotate, the power assembly includes a motor 800. A worm 810 is provided at the output end of the motor 800, and a worm wheel 710 is coaxially provided on the lead screw 700. The worm 810 and the worm wheel 710 mesh. In this way, the motor 800 provides power, and the worm 810 and the worm wheel 710 transmit power to drive the lead screw 700 to rotate. By adopting the transmission structure of the worm wheel 710 and the worm 810, the transmission direction is changed, so that the axial direction of the output shaft of the motor 800 can be perpendicular to the axial direction of the lead screw 700, reducing the length of the drive assembly and improving the compactness of the drive assembly.

[0026] Further optimizations include, for example Figure 6 As shown, there are two second connecting rods 300 arranged in parallel. A third connecting rod 400 is located between the two second connecting rods 300, and a connecting plate 900 is provided between the two second connecting rods 300. The design of connecting the two second connecting rods 300 through the connecting plate 900 improves the stability of the connection and the compressive strength of the structure.

[0027] Similarly, and Figure 7 As shown, the third link 400 includes an intermediate plate 410 and two connecting arms 420 arranged parallel to the intermediate plate 410. Each of the two connecting arms 420 is rotatably connected to the two second links 300 through a fourth pivot. The first link 410 is rotatably connected to the intermediate plate 410 through a second pivot. The slider 600 is disposed between the two connecting arms 420 and is rotatably connected to the two connecting arms 420 through a fifth pivot. In other words, the third link 400 is U-shaped as a whole, and the two connecting arms 420 are respectively disposed on both sides of the slider 600 and are respectively connected to the two second links 300, which improves the stability of connection and drive as well as the strength of the structure.

[0028] The present invention also discloses an in-vehicle display screen, which includes the above-mentioned driving mechanism.

[0029] The present invention also discloses a vehicle comprising the above-described drive mechanism.

[0030] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that are directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A driving mechanism, characterized in that: It includes a mounting section (100), a first link (200), a second link (300), a third link (400), and a drive assembly; The first connecting rod (200) is rotatably connected to the mounting part (100) via a first rotating shaft, and the first connecting rod (200) is rotatably connected to the third connecting rod (400) via a second rotating shaft; The second link (300) is rotatably connected to the mounting part (100) via a third pivot, and the second link (300) is rotatably connected to the third link (400) via a fourth pivot; The first, second, third, and fourth rotating shafts are aligned axially, and the axes of the first, second, third, and fourth rotating shafts are located at the four vertices of the quadrilateral, respectively. The drive assembly is used to drive the third link (400) to move, thereby adjusting the angle between the third link (400) and the first link (200).

2. The driving mechanism according to claim 1, characterized in that: The driving assembly includes a carrier (500), a slider (600), and a driving member. The slider (600) is slidably disposed on the carrier (500), and the driving member is used to drive the slider (600) to perform linear motion on the carrier (500). The first connecting rod (200) is rotatably connected to the carrier (500) via a fifth rotating shaft, the fifth rotating shaft being located on the side of the second rotating shaft away from the first rotating shaft; The slider (600) is rotatably connected to the third link (400) via a sixth pivot, which is located between the second pivot and the fourth pivot. The axial direction of the fifth rotating shaft and the axial direction of the sixth rotating shaft are both consistent with the axial direction of the first rotating shaft.

3. The driving mechanism according to claim 2, characterized in that: The carrier (500) is provided with a guide rod (510), and the slider (600) is sleeved on the guide rod (510).

4. The driving mechanism according to claim 3, characterized in that: The driving component includes a lead screw (700) and a power assembly. The lead screw (700) is mounted on the carrier (500), and the axial direction of the lead screw (700) is consistent with the axial direction of the guide rod (510). The slider (600) is sleeved on the lead screw (700) and threadedly connected to the lead screw (700).

5. The driving mechanism according to claim 4, characterized in that: The power assembly includes a motor (800), the output end of which is provided with a worm (810), and a worm wheel (710) is coaxially provided on the lead screw (700), and the worm (810) and the worm wheel (710) mesh.

6. The driving mechanism according to claim 2, characterized in that: There are two second links (300), which are arranged in parallel, and the third link (400) is arranged between the two second links (300).

7. The driving mechanism according to claim 6, characterized in that: A connecting plate (900) is provided between the two second links (300).

8. The driving mechanism according to claim 6, characterized in that: The third link (400) includes an intermediate plate (410) and two connecting arms (420) arranged parallel to each other on the intermediate plate (410). Each of the two connecting arms (420) is rotatably connected to the two second links (300) through a fourth pivot. The first connecting rod (410) is rotatably connected to the intermediate plate (410) via the second rotating shaft; The slider (600) is disposed between the two connecting arms (420), and the slider (600) is rotatably connected to the two connecting arms (420) through the fifth rotating shaft.

9. A vehicle-mounted display screen, characterized in that: It includes the drive mechanism as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: It includes the drive mechanism as described in any one of claims 1 to 8.

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