Anti-pinch vehicle-mounted screen driving mechanism

Abstract

The utility model discloses an anti-pinch vehicle-mounted screen driving mechanism. The anti-pinch vehicle-mounted screen driving mechanism comprises a display screen module; the rotating shaft is connected with the display screen module and is used for driving the display screen module to turn over; the driving module is connected with the rotating shaft and used for driving the rotating shaft to rotate; the driving module comprises a rotary driving mechanism, a driving gear, a transmission gear set and an output shaft which are in transmission connection in sequence; a first-stage transmission gear of the transmission gear set is meshed with the driving gear, a last-stage transmission gear of the transmission gear set is coaxially installed on the output shaft, transmission is conducted between the driving gear and the first-stage transmission gear through helical teeth, and the output shaft is connected with the rotating shaft. The vehicle-mounted electric folding display screen solves the problem that an existing vehicle-mounted electric folding display screen cannot be quickly opened after being clamped by hands.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted equipment technology, and in particular to an anti-pinch vehicle-mounted screen drive mechanism. Background Technology

[0002] With the development of the automotive industry, many vehicles now feature in-vehicle tilt-and-turn displays, which can be used to play live videos or recordings, providing passengers with a better service experience. As technology has advanced, in-vehicle tilt-and-turn displays have also seen significant development. Current displays are typically electrically driven, improving user convenience. However, existing electrically driven tilt-and-turn displays use worm gear drives to operate the folding motion. Worm gear drives have a self-locking mechanism; if a user's hand is accidentally placed on the folding path, it can easily be caught in the folding display. The only way to open the display is through the control system's reverse rotation. If the control system malfunctions, the display cannot be opened, and this operation is time-consuming and cannot quickly open the display, failing to effectively protect the user in emergency situations. Utility Model Content

[0003] The main purpose of this utility model is to provide an anti-pinch vehicle screen drive mechanism, which aims to solve the problem that existing vehicle electric flip-up displays cannot be opened quickly after being pinched.

[0004] To achieve the above objectives, this utility model proposes an anti-pinch vehicle screen driving mechanism, comprising:

[0005] Display module;

[0006] A pivot, connected to the display module, is used to drive the display module to rotate;

[0007] A drive module, connected to the rotating shaft, is used to drive the rotating shaft to rotate. The drive module includes a rotary drive mechanism, a drive gear, a transmission gear set, and an output shaft that are connected in sequence. The first stage transmission gear of the transmission gear set meshes with the drive gear, and the last stage transmission gear of the transmission gear set is coaxially mounted on the output shaft. The drive gear and the first stage transmission gear are connected by helical gear transmission. The output shaft is connected to the rotating shaft.

[0008] Optionally, the transmission gear set includes a first-stage gear, a second-stage gear, a third-stage gear, a fourth-stage gear, a fifth-stage gear, a sixth-stage gear, and output gears that mesh sequentially. The first-stage gear includes a first-stage gear and a first-stage shaft gear that are coaxially connected. The second-stage gear includes a second-stage gear and a second-stage shaft gear that are coaxially connected. The third-stage gear includes a third-stage gear and a third-stage shaft gear that are coaxially connected. The fourth-stage gear includes a fourth-stage gear and a fourth-stage shaft gear that are coaxially connected. The fifth-stage gear includes a fifth-stage gear and a fifth-stage shaft gear that are coaxially connected. The sixth-stage gear includes a sixth-stage gear and a sixth-stage shaft gear that are coaxially connected.

[0009] The first-stage gear meshes with the drive gear, the first-stage shaft gear meshes with the second-stage gear, the second-stage shaft gear meshes with the third-stage gear, the third-stage shaft gear meshes with the fourth-stage gear, the fourth-stage shaft gear meshes with the fifth-stage gear, the fifth-stage shaft gear meshes with the sixth-stage gear, and the sixth-stage shaft gear meshes with the output gear. The output gear is coaxially mounted on the output shaft.

[0010] Optionally, both the drive gear and the first-stage plate gear are configured as helical gears.

[0011] Optionally, the primary teeth are configured as a one-piece molded structure made of POM material.

[0012] Optionally, the drive module further includes a detachably connected gearbox and cover, the rotary drive mechanism is mounted on the outside of the gearbox, the drive gear and transmission gear set are mounted inside the gearbox, and the output shaft passes through the gearbox.

[0013] Optionally, both ends of the output shaft extend to the outside of the gearbox, and one end of the output shaft is connected to the rotating shaft, while the other end of the output shaft is connected to a damper.

[0014] Optionally, the gearbox is provided with a bearing chamber, and the output shaft is connected to the gearbox via a bearing.

[0015] Optionally, the rotating shaft is fixedly connected to the display module, and the rotating shaft and the display module are configured as an integral structure. One end of the rotating shaft is connected to the output shaft, and the other end of the rotating shaft is connected to a damper.

[0016] Optionally, the display module includes a bracket and a display screen, the bracket having a mounting groove, and the display screen being rotatably mounted in the mounting groove via the pivot.

[0017] Optionally, the rotary drive mechanism is configured as a motor.

[0018] The beneficial effects of this utility model are as follows: It improves the driving structure of the existing vehicle-mounted electric flip-up display screen. In the driving module, a transmission gear set is used for power transmission. In the event of a hand pinching accident, the user can directly push the display screen open manually. The response time is "zero delay". There is no need to wait for the control system to detect the fault and issue a reversal command. There is also no need to face the problem that the display screen cannot be opened due to the self-locking of the worm gear transmission, thus improving the safety performance of the user. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the vehicle-mounted screen of this utility model;

[0021] Figure 2 This is an exploded view of the overall structure of the vehicle-mounted screen of this utility model;

[0022] Figure 3 This is a schematic diagram of the drive module structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the transmission structure of the drive module of this utility model;

[0024] Label Explanation:

[0025] 11. Bracket; 12. Display screen; 13. Mounting slot;

[0026] 2. Shaft;

[0027] 31. Rotary drive mechanism; 32. Drive gear; 331. First-stage gear; 332. First-stage shaft gear; 333. Second-stage gear; 334. Second-stage shaft gear; 335. Third-stage gear; 336. Third-stage shaft gear; 337. Fourth-stage gear; 338. Fourth-stage shaft gear; 339. Fifth-stage gear; 3310. Fifth-stage shaft gear; 3311. Sixth-stage gear; 3312. Sixth-stage shaft gear; 3313. Output gear; 34. Output shaft; 35. Gearbox; 36. Gearbox cover; 37. Bearing;

[0028] 4. Dampers.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] One embodiment of this utility model proposes an anti-pinch vehicle screen driving mechanism, referencing... Figures 1 to 4 ,include:

[0034] Display module;

[0035] The rotating shaft 2 is connected to the display module and is used to drive the display module to rotate.

[0036] A drive module is connected to the rotating shaft 2 and is used to drive the rotating shaft 2 to rotate. The drive module includes a rotary drive mechanism 31, a drive gear 32, a transmission gear set, and an output shaft 34 that are connected in sequence. The first stage transmission gear of the transmission gear set meshes with the drive gear 32, and the last stage transmission gear of the transmission gear set is coaxially mounted on the output shaft 34. The drive gear 32 and the first stage transmission gear are connected by helical gear transmission. The output shaft 34 is connected to the rotating shaft 2.

[0037] This embodiment improves the driving structure of the existing vehicle-mounted electric folding display screen 12. In the driving module, a transmission gear set is used for power transmission. When the display screen module encounters external force such as a hand during the folding process, the rotating shaft 2 can drive the output shaft 34, the transmission gear set and the driving gear 32 to rotate in the opposite direction, so that the display screen module can quickly reverse and open, thereby avoiding the hand being pinched for a long time. In an emergency, the pinched part can be quickly released, providing users with a higher level of safety protection.

[0038] The drive module forms a stable and reliable power transmission path through a rotary drive mechanism 31, a drive gear 32, a transmission gear set, and an output shaft 34 connected in sequence. The power provided by the rotary drive mechanism 31 is transmitted to the output shaft 34 step by step through the drive gear 32 and the transmission gear set, ultimately driving the rotating shaft 2 to rotate, thereby realizing the folding motion of the display module. This transmission structure not only ensures the smoothness and efficiency of power transmission, but also improves the load-bearing capacity and reliability of the entire drive system through the multi-stage gear transmission design, ensuring that the display module can fold as expected, meeting the user's need for convenient use of the vehicle-mounted display screen 12.

[0039] Furthermore, the transmission gear set includes a first-stage gear, a second-stage gear, a third-stage gear, a fourth-stage gear, a fifth-stage gear, a sixth-stage gear, and an output gear 3313 that mesh sequentially. The first-stage gear includes a first-stage gear 331 and a first-stage shaft gear 332 that are coaxially connected. The second-stage gear includes a second-stage gear 333 and a second-stage shaft gear 334 that are coaxially connected. The third-stage gear includes a third-stage gear 335 and a third-stage shaft gear 336 that are coaxially connected. The fourth-stage gear includes a fourth-stage gear 337 and a fourth-stage shaft gear 338 that are coaxially connected. The fifth-stage gear includes a fifth-stage gear 339 and a fifth-stage shaft gear 3310 that are coaxially connected. The sixth-stage gear includes a sixth-stage gear 3311 and a sixth-stage shaft gear 3312 that are coaxially connected.

[0040] The first-stage tooth 331 meshes with the drive gear 32, the first-stage shaft tooth 332 meshes with the second-stage tooth 333, the second-stage shaft tooth 334 meshes with the third-stage tooth 335, the third-stage shaft tooth 336 meshes with the fourth-stage tooth 337, the fourth-stage shaft tooth 338 meshes with the fifth-stage tooth 339, the fifth-stage shaft tooth 3310 meshes with the sixth-stage tooth 3311, the sixth-stage shaft tooth 3312 meshes with the output tooth 3313, and the output tooth 3313 is coaxially mounted on the output shaft 34.

[0041] In this embodiment, a transmission chain consisting of six gears is used to transmit the output torque of the rotary drive mechanism 31 step by step. The gear teeth of each gear are designed to be coaxial with the shaft teeth, forming a double gear meshing structure.

[0042] Furthermore, both the drive gear 32 and the first-stage gear 331 are configured as helical gears. In this embodiment, a helical gear structure is adopted, and the tooth surface of the helical gear is spirally inclined. During meshing, it is a gradual line contact, which significantly reduces meshing impact compared to the surface contact of spur gears. This makes the meshing process smoother when power is transmitted from the rotary drive mechanism 31 to the transmission gear set, reduces the noise and vibration of the transmission system during operation, and improves the quietness of the vehicle screen folding process.

[0043] Furthermore, the primary tooth 331 is configured as a one-piece molded structure made of POM material. POM, or polyoxymethylene, is an engineering plastic with advantages such as high strength, high rigidity, wear resistance, and self-lubrication. It is often used in gears and other parts that require wear resistance and low friction. In this embodiment, the primary tooth 331 is made of POIM material, which improves the wear resistance of the primary tooth 331 while reducing transmission noise, making the transmission process quieter and improving the user experience.

[0044] Furthermore, the drive module also includes a detachably connected gearbox 35 and a cover 36. The rotary drive mechanism 31 is installed on the outside of the gearbox 35, the drive gear 32 and the transmission gear set are installed inside the gearbox 35, and the output shaft 34 passes through the gearbox 35.

[0045] In this embodiment, the gearbox 35 and the cover 36 form a sealed cavity, completely enclosing the drive gear 32 and the transmission gear set, preventing dust, oil, and moisture from entering, thus enhancing the protection of the transmission module and ensuring its service life. The gearbox 35 and the cover 36 are detachably connected, such as by clips or bolts, realizing modular packaging of the drive module. During maintenance, only the cover 36 needs to be removed to quickly inspect the gear set or replace worn parts, without disassembling the entire drive module, reducing maintenance costs.

[0046] Furthermore, both ends of the output shaft 34 extend to the outside of the gearbox 35, and one end of the output shaft 34 is connected to the rotating shaft 2, while the other end of the output shaft 34 is connected to a damper 4. In this embodiment, the damper 4 can provide resistance torque during the rotation of the display module, making the rotation process of the display module smoother (this is an extended function; if your company's damper does not have this function, it can be removed).

[0047] Furthermore, the gearbox 35 is provided with a bearing chamber 37, and the output shaft 34 is connected to the gearbox 35 through the bearing 37. In this embodiment, two ball bearings 37 are used to cooperate with the output shaft 34 to ensure the stability of the output shaft 34 during rotation, thereby stably transmitting the rotational driving force to the rotating shaft 2 and the display module, making the folding of the display screen 12 smoother.

[0048] Furthermore, the rotating shaft 2 is fixedly connected to the display module, and the rotating shaft 2 and the display module are configured as an integral structure. One end of the rotating shaft 2 is connected to the output shaft 34, and the other end of the rotating shaft 2 is connected to a damper 4. In this embodiment, by symmetrically arranging the rotating shafts 2 on both sides of the display module, a dual-support point drive structure is formed, making the force on the module more balanced during the folding process. At the same time, the dampers 4 on both sides can further improve the stability of the display module during rotation, allowing the module to be stably suspended at any angle, improving user convenience.

[0049] Furthermore, the display module includes a bracket 11 and a display screen 12. The bracket 11 has a mounting groove 13, and the display screen 12 is rotatably mounted in the mounting groove 13 via the pivot 2. In this embodiment, the bracket 11 provides a mounting groove 13 for housing the display screen 12. When not in use, the display screen 12 can be hidden in the mounting groove 13, forming a flat surface for storage and protection. When the display screen 12 is needed, it can be flipped out from the mounting groove 13.

[0050] Furthermore, the rotary drive mechanism 31 is configured as a motor. In this embodiment, a small motor is integrated with the gearbox 35 to reduce the overall size. While satisfying the flip function of the display screen 12, it also reduces the space occupancy rate, meets the usage requirements of small space installation, and is applicable to a wider range of scenarios.

[0051] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A drive mechanism for an anti-pinch vehicle screen, characterized in that, include: Display module; A pivot, connected to the display module, is used to drive the display module to rotate; A drive module, connected to the rotating shaft, is used to drive the rotating shaft to rotate. The drive module includes a rotary drive mechanism, a drive gear, a transmission gear set, and an output shaft that are connected in sequence. The first stage transmission gear of the transmission gear set meshes with the drive gear, and the last stage transmission gear of the transmission gear set is coaxially mounted on the output shaft. The drive gear and the first stage transmission gear are connected by helical gear transmission. The output shaft is connected to the rotating shaft.

2. The anti-pinch vehicle screen driving mechanism according to claim 1, characterized in that, The transmission gear set includes a first-stage gear, a second-stage gear, a third-stage gear, a fourth-stage gear, a fifth-stage gear, a sixth-stage gear, and output gears that mesh sequentially. The first-stage gear includes a first-stage gear and a first-stage shaft gear that are coaxially connected. The second-stage gear includes a second-stage gear and a second-stage shaft gear that are coaxially connected. The third-stage gear includes a third-stage gear and a third-stage shaft gear that are coaxially connected. The fourth-stage gear includes a fourth-stage gear and a fourth-stage shaft gear that are coaxially connected. The fifth-stage gear includes a fifth-stage gear and a fifth-stage shaft gear that are coaxially connected. The sixth-stage gear includes a sixth-stage gear and a sixth-stage shaft gear that are coaxially connected. The first-stage gear meshes with the drive gear, the first-stage shaft gear meshes with the second-stage gear, the second-stage shaft gear meshes with the third-stage gear, the third-stage shaft gear meshes with the fourth-stage gear, the fourth-stage shaft gear meshes with the fifth-stage gear, the fifth-stage shaft gear meshes with the sixth-stage gear, and the sixth-stage shaft gear meshes with the output gear. The output gear is coaxially mounted on the output shaft.

3. The anti-pinch vehicle screen driving mechanism according to claim 2, characterized in that, Both the drive gear and the first-stage plate gear are configured as helical gears.

4. The anti-pinch vehicle screen driving mechanism according to claim 3, characterized in that, The primary teeth are made of POM material in a single molded structure.

5. The anti-pinch vehicle screen driving mechanism according to claim 1, characterized in that, The drive module also includes a detachably connected gearbox and cover. The rotary drive mechanism is mounted on the outside of the gearbox, the drive gear and transmission gear set are mounted inside the gearbox, and the output shaft passes through the gearbox.

6. The anti-pinch vehicle screen driving mechanism according to claim 5, characterized in that, The output shaft extends to the outside of the gearbox at both ends, and one end of the output shaft is connected to the rotating shaft, while the other end of the output shaft is connected to a damper.

7. The anti-pinch vehicle screen driving mechanism according to claim 5, characterized in that, The gearbox is equipped with a bearing chamber, and the output shaft is connected to the gearbox via a bearing.

8. The anti-pinch vehicle screen driving mechanism according to claim 1, characterized in that, The rotating shaft is fixedly connected to the display module, and the rotating shaft and the display module are configured as an integral structure. One end of the rotating shaft is connected to the output shaft, and the other end of the rotating shaft is connected to a damper.

9. The anti-pinch vehicle screen driving mechanism according to claim 1, characterized in that, The display module includes a bracket and a display screen. The bracket has a mounting slot, and the display screen is rotatably mounted in the mounting slot via the pivot.

10. The anti-pinch vehicle screen driving mechanism according to claim 1, characterized in that, The rotary drive mechanism is configured as a motor.

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