Deflection generating device for vehicle-mounted damping

Abstract

The utility model relates to a vehicle-mounted damping deflection generating device which is characterized by comprising a mounting seat, a driving part, a transmission mechanism and a damping mechanism are arranged on the mounting seat, a main shaft is arranged at the output end of the transmission mechanism, the driving part drives the main shaft to rotate through a transmission assembly, and the damping mechanism is arranged on the main shaft. The damping mechanism is arranged on the main shaft and provides damping force for rotation of the main shaft. Wherein the damping mechanism comprises a damping shaft sleeve and an elastic piece, the damping shaft sleeve is movably arranged on the main shaft in a sleeving mode, the elastic piece is arranged on the damping shaft sleeve in a sleeving mode, and the elastic piece extrudes the damping shaft sleeve towards the main shaft. The utility model has the advantages that the damping structure is simplified, the installation and maintenance are convenient, the production and processing cost is reduced, the transmission noise is reduced, and the flexibility and applicability of the damping mechanism are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted screen auxiliary structures, in particular to a vehicle-mounted damping deflection generating device. Background Art

[0002] With the development of automotive electronic technology, in-vehicle central control screens have become more and more common to meet the needs of visual vehicle parameters and multimedia. However, in the current existing technology, fixed central control screens are often used, and the deflection angle of the central control screen cannot be adjusted, which affects the viewing experience of the driver and passengers in the car. A small number of designs use a more complex damping rotation solution, which reduces the overall design space, reduces the flexibility and applicability of the structure, increases production and processing costs, and is not conducive to subsequent maintenance. Utility Model Content

[0003] The utility model aims to provide a vehicle-mounted damping yaw generating device, aiming to solve the technical problems existing in the prior art such as reduced design space, low structural flexibility and applicability, increased production and processing costs, and inconvenience in subsequent maintenance.

[0004] In order to solve the above technical problems, the utility model provides a vehicle-mounted damping yaw generating device, including: a mounting seat, on which a driving member, a transmission mechanism, and a damping mechanism are provided, a main shaft is provided at the output end of the transmission mechanism, the driving member drives the main shaft to rotate through the transmission assembly, the damping mechanism is arranged on the main shaft and provides a damping force for the rotation of the main shaft; wherein the damping mechanism includes a damping sleeve movably mounted on the main shaft, and an elastic member mounted on the damping sleeve, and the elastic member presses the damping sleeve toward the main shaft.

[0005] Setting a transmission mechanism between the drive and the spindle can control the output speed and torque, and improve the load capacity of the spindle; setting a damping mechanism on the spindle can eliminate the axial and radial clearances of the spindle, effectively absorb and consume the excess energy generated during the deflection, prevent the spindle from shaking, and help reduce the vibration of the spindle, thereby reducing noise and protecting internal components; the damping mechanism can also assist in adjusting the rotation speed of the spindle, which is beneficial to maintaining the stability of the deflection; when the screen deflects to a specified angle, the damping mechanism can keep the spindle stable without being slightly disturbed by the outside world, thereby improving the stability of the spindle. While maintaining a stable damping force, only damping sleeves and elastic parts are used, which effectively simplifies the damping mechanism and allows it to be used in a variety of structures, which is beneficial to expanding the design space, reducing production and processing costs, facilitating subsequent maintenance, and further improving the flexibility and applicability of the damping mechanism.

[0006] Preferably, a plurality of convex portions are provided at intervals and around the outer circumference of the damping sleeve, the elastic member is sleeved on the outer circumference of the plurality of convex portions, and the mounting seat is provided with a plurality of grooves matching the plurality of convex portions.

[0007] Multiple convex portions spaced apart and surrounding the outer circumference of the damping sleeve can be used to extrude the damping sleeve using a variety of elastic parts, so that the various elastic parts can fully contact and extrude the damping sleeve, which is beneficial to improving the damping adjustment capability and expanding the flexibility and adaptability of the damping mechanism; in addition, when the main shaft rotates, the convex portions and the grooves cooperate to limit the damping sleeve from rotating with the main shaft, ensuring that the damping sleeve can normally generate damping force on the main shaft, which is beneficial to improving the stability of the damping mechanism.

[0008] Preferably, the damping sleeve is provided with a first opening, and the elastic member is provided with a second opening, and the elastic member contracts the second opening to squeeze the damping sleeve, thereby contracting the first opening.

[0009] The elastic part is provided with a second opening, which makes the elastic part easy to install, disassemble and subsequently maintain, which is beneficial to reducing assembly time and saving production and processing costs. When the elastic part shrinks inwardly and has an interference fit with the damping sleeve, a certain shrinkage space can also be provided; the damping sleeve is provided with a first opening, which can reduce the material usage of the damping sleeve and facilitate installation and disassembly. When the elastic part squeezes the damping sleeve, a certain space can also be provided to allow the damping sleeve to shrink toward the main shaft, which is beneficial to simplifying the assembly process, saving production and processing costs, and improving the damping adjustment capability.

[0010] Preferably, the elastic member comprises a plurality of damping retaining springs, and the plurality of damping retaining springs are stacked.

[0011] The damping retaining spring is small in size, light in weight, and easy to install and disassemble, which is beneficial to simplifying the damping mechanism and reducing production and processing costs. According to the required damping force, a corresponding number of damping retaining springs can be set to have an interference fit with the damping sleeve, which is beneficial to improving the damping adjustment capability and expanding the flexibility and adaptability of the damping mechanism.

[0012] Preferably, the two ends of the main shaft are rotatably clamped on the mounting seat, and the main shaft is also provided with a gap elimination mechanism, which includes a first sealing ring and a second sealing ring sleeved on both ends of the main shaft, a bearing is sleeved on the outer periphery of the second sealing ring, and a pressure plate is provided on the upper end of the bearing.

[0013] The mounting seat, bearing and pressure plate can eliminate the axial clearance of the spindle, reduce the axial movement of the spindle, reduce the vibration when the spindle rotates, and prevent abnormal wear between the spindle and other contactable parts, which is beneficial to improving the transmission accuracy of the spindle, reducing the transmission noise of the spindle, improving the stability of the spindle transmission, and increasing the life of the equipment; the first sealing ring, the second sealing ring and the bearing can eliminate the radial clearance of the spindle, reduce the radial shaking of the spindle, and reduce the energy loss caused by unnecessary contact friction of the spindle, which is beneficial to improving the stability of the spindle rotation, reducing the transmission noise of the spindle, and improving the transmission efficiency of the spindle.

[0014] Preferably, the damping mechanism further comprises a wave spring, and the wave spring is located between the pressure plate and the bearing.

[0015] On the one hand, the wave spring can cooperate with the pressure plate and the bearing to eliminate the axial clearance of the main shaft, and its function is consistent with that of the anti-backlash mechanism. On the other hand, the wave spring helps to absorb mechanical vibrations and reduce the noise of the main shaft transmission. In addition, the wave spring is compact in design and easy to install, which helps to reduce assembly complexity and subsequent maintenance costs.

[0016] Preferably, the transmission mechanism includes a worm connected to the driving member, a worm wheel meshing with the worm, a primary gear meshing with the worm wheel, a secondary gear meshing with the primary gear, a third gear meshing with the secondary gear, and a fourth gear, and the third gear is fixedly connected to the main shaft.

[0017] The worm gear combined with multi-stage gears can provide a larger transmission ratio, which is beneficial to improving the accuracy of speed and position control; the worm gear transmission has a self-locking characteristic, and when the output end is subjected to external force, the transmission will not reverse, which is beneficial to increase the safety of the transmission mechanism; the line contact engagement between the worm and the worm wheel reduces impact and vibration, which is beneficial to reducing transmission noise and improving transmission stability; the worm gear and multi-stage gears can realize complex multi-stage transmission in a limited space, which is beneficial to improving space utilization; the contact line of the worm gear is longer, and combined with multi-stage gears it can provide a higher load capacity and provide rotation stability for the spindle.

[0018] Preferably, a potentiometer is provided on the four-stage gear.

[0019] The fourth-stage gear is meshed with the second-stage gear. When the second-stage gear drives the third-stage gear to rotate, the fourth-stage gear will also rotate accordingly. The potentiometer set on the fourth-stage gear can identify the rotation angle of the fourth-stage gear, and then identify the rotation angle of the main shaft driven by the third-stage gear, which is convenient for precise control of the rotation angle of the main shaft and is beneficial to improving the control accuracy of the rotation angle.

[0020] Preferably, the mounting seat is provided with a mounting reference that matches the driving member and the components of the transmission mechanism.

[0021] The installation reference on the mounting seat can provide a stable assembly and operating environment, unify the installation reference and position accuracy between components, provide a stable fixed-axis transmission gear assembly, prevent poor meshing between gear transmissions at all levels, and help improve the stability of the transmission mechanism, reduce assembly difficulty and facilitate subsequent maintenance.

[0022] Preferably, a screen fixing frame is fixedly connected to the main shaft for installing a vehicle-mounted screen.

[0023] The screen fixing frame can provide additional support for the screen, which helps prevent the screen from shaking and enhance the visual experience; the screen fixing frame can reduce the stress on the screen from the main axis, reduce the risk of screen damage, and help increase the life of the screen; in addition, the screen fixing frame can also integrate additional functions and enhance the appearance.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The elastic part is used to extrude the damping sleeve, so that the friction between the damping sleeve and the output spindle is increased to provide the damping force. The overall structure is simple, occupies a small space, can effectively reduce the production and processing cost, can be applied to a variety of devices, and is convenient for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 The figure is a schematic diagram of the overall structure of a vehicle-mounted damping yaw generating device.

[0028] Figure 2 It is a structural schematic diagram of the damping mechanism and the transmission mechanism.

[0029] Figure 3 Exploded diagram of the damping mechanism.

[0030] Figure 4 It is a top view of the installation reference on the base and lower cover.

[0031] Icons: 10-mounting seat; 11-base; 12-front cover; 13-lower cover; 20-driving member; 21-driving mounting reference; 30-transmission mechanism; 31-worm; 32-worm wheel; 321-zero mounting reference; 33-first gear; 331-first mounting reference; 34-second gear; 341-second mounting reference; 35-third gear; 36-fourth gear; 361-fourth mounting reference; 40-damping mechanism Structure; 41-shaft fixing cover; 411-groove; 42-damping sleeve; 421-limiting portion; 422-convex portion; 423-first opening; 43-elastic member; 431-second opening; 44-wave spring; 50-main shaft; 51-limiting protrusion; 52-sealing groove; 60-clearance elimination mechanism; 63-bearing; 61-first sealing ring; 62-second sealing ring; 64-pressing plate; 70-potentiometer; 80-screen fixing frame. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0033] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3As shown, the present invention provides a vehicle-mounted damping deflection generating device, which includes a mounting seat 10, on which a driving member 20, a transmission mechanism 30, and a damping mechanism 40 are arranged. A rotatable main shaft 50 is arranged at the output end of the transmission mechanism 30, and the driving member 20 drives the main shaft 50 to rotate through the transmission assembly; the damping mechanism 40 is arranged on the main shaft 50 to provide a damping force for the rotation of the main shaft 50, and the damping mechanism 40 includes a damping sleeve 42 sleeved on the main shaft 50, and an elastic member 43 sleeved on the damping sleeve 42, and the damping sleeve 42 and the main shaft 50 are movable, and the elastic member 43 presses the damping sleeve 42 toward the main shaft 50, and the damping sleeve 42 is squeezed and shrinks toward the main shaft 50, so that a damping force is generated between the damping sleeve 42 and the main shaft 50.

[0036] In this embodiment, please refer to Figure 2 and Figure 3 As shown, a plurality of convex portions 422 are arranged at intervals and around the outer circumference of the damping sleeve 42, and the convex portions 422 are arranged in a prism shape along the height direction of the damping sleeve 42; the elastic member 43 is sleeved on the outer circumference of these convex portions 422, and presses the convex portions 422 toward the main shaft 50; the mounting seat 10 is provided with a plurality of grooves 411 matching these convex portions 422, and the convex portions 422 are inserted into the grooves 411 when the damping sleeve 42 is installed;

[0037] It can be understood that the protrusion 422 is used to be squeezed by the elastic member 43 so that the damping sleeve 42 shrinks toward the main shaft 50 and fully contacts the main shaft 50, and is engaged with the mounting seat 10 to prevent the damping sleeve 42 from rotating with the main shaft 50. Therefore, when the above conditions are met, the shape and structure of the protrusion 422 can be changed within a certain range, and a slope can be set at one end close to the groove 411 to facilitate installation and disassembly.

[0038] Furthermore, in order to prevent the damping sleeve 42 from axial displacement, a limiting protrusion 51 can be set on the main shaft 50, and a limiting portion 421 abutting against the limiting protrusion 51 can be set on the damping sleeve 42 accordingly. The protrusion 422 and the groove 411 of the mounting seat 10 can limit the axial displacement of the damping sleeve 42.

[0039] In addition, in order to meet modular requirements and enhance the flexibility and adaptability between the main shaft 50 and the mounting seat 10, an axis fixing cover 41 can be set between the main shaft 50 and the mounting seat 10. The main shaft 50 is clamped with the axis fixing cover 41, and the axis fixing cover 41 is fixedly installed on the mounting seat 10. Similarly, a groove 411 is also correspondingly provided on the axis fixing cover 41.

[0040] For details, please refer to Figure 2As shown, the damping sleeve 42 is provided with a first opening 423, and the first opening 423 passes through the two ends of the damping sleeve 42, so that the damping sleeve 42 can be unfolded from the first opening 423, which is convenient for installation and removal; the elastic member 43 is provided with a second opening 431, and the second opening 431 can also make the elastic member 43 open from the second opening 431, which is convenient for installation and removal; when the elastic member 43 and the damping sleeve 42 are interference fit, the elastic member 43 contracts the second opening 431 and squeezes the damping sleeve 42 through its own elastic force, and the damping sleeve 42 is squeezed and shrinks toward the main shaft 50, and the first opening 423 reserves a certain space for the shrinkage of the damping sleeve 42.

[0041] Therefore, the shapes and positions of the first opening 423 and the second opening 431 may be changed so as to satisfy the above functions.

[0042] More specifically, please refer to Figure 2 As shown, the elastic member 43 includes a plurality of damping retaining springs, which are stacked. The damping retaining spring is sleeved on the damping sleeve 42, and its inner ring abuts against the convex portion 422 on the damping sleeve 42, so that the damping sleeve 42 is subjected to a certain degree of extrusion, providing a certain damping force for the rotation between the main shaft 50 and the damping sleeve 42. A plurality of damping retaining springs can be provided according to the damping force to be adjusted as needed, and the stacked arrangement is convenient for installation and prevents the axial deviation of the plurality of damping retaining springs, which causes the extrusion force to be offset, thereby affecting the damping force.

[0043] Therefore, the elastic member 43 may also be a spring, a rubber ring, an elastic clamp, etc. that can be radially contracted.

[0044] In this embodiment, please refer to Figure 2 and Figure 3 As shown, both ends of the main shaft 50 are rotatably clamped on the mounting seat 10 to make the main shaft 50 vertical. The main shaft 50 is also provided with a backlash elimination mechanism 60, which includes a first sealing ring 61 and a second sealing ring 62 sleeved on both ends of the main shaft 50.

[0045] The first sealing ring 61 and the second sealing ring 62 are both rubber sealing rings. The first sealing ring 61 is sleeved at the joint between the bottom of the main shaft 50 and the mounting seat 10, and cooperates with the mounting seat 10 to eliminate the axial and radial clearances at the bottom of the main shaft 50. If the main shaft 50 is set on the shaft fixing cover 41, the first sealing ring 61 cooperates with the shaft fixing cover 41 to eliminate the axial and radial clearances at the bottom of the main shaft 50;

[0046] The second sealing ring 62 is sleeved on the top of the main shaft 50, and an oil-containing bearing 60 is sleeved on the outer periphery of the second sealing ring 62. A pressure plate 64 is provided on the top of the bearing 60. The main shaft 50 passes through the pressure plate 64 and is rotatably connected to the pressure plate 64. The pressure plate 64 is fixedly connected to the mounting seat 10. The second sealing ring 62, the bearing 60, and the pressure plate 64 cooperate to eliminate the axial and radial clearances at the top of the main shaft 50.

[0047] In addition, an oil-containing bearing 60 may be provided on the outer periphery of the first sealing ring 61, and a sealing groove 52 may be provided around the main shaft 50 by the first sealing ring 61 and the second sealing ring 62 to prevent the sealing ring from being offset due to the rotation of the main shaft 50 and affecting the clearance elimination effect.

[0048] Specifically, the damping mechanism 40 also includes a wave spring 44, which is located between the pressure plate 64 and the bearing 60. It can be understood that a limit groove (not shown) can be set on the end face of the pressure plate 64 relative to the bearing 60, and the wave spring 44 can be set in the limit groove. When the pressure plate 64 is installed, the bearing 60 can abut and squeeze the wave spring 44. When mechanical vibration is transmitted from the main shaft 50 or the outside world, the wave spring 44 can absorb the mechanical vibration, so that the transmission of the main shaft 50 remains stable and the noise is reduced.

[0049] Therefore, the wave spring 44 can also be replaced by disc springs, coil springs, washers and other components that can achieve the above functions.

[0050] In this embodiment, please refer to Figure 2 As shown, the transmission mechanism 30 includes a worm 31 connected to the output end of the driving member 20, a worm wheel 32 meshing with the worm 31, a primary gear 33 meshing with the worm wheel 32, a secondary gear 34 meshing with the primary gear 33, a tertiary gear 35 meshing with the secondary gear 34, and a fourth gear 36, and the tertiary gear 35 is fixedly connected to the main shaft 50.

[0051] It can be understood that the driving member 20 drives the main shaft 50 to rotate through the transmission of the worm wheel 32, worm 31 and three gears, wherein at least two gears are used according to different design requirements, and three gears are used in this embodiment. These three gears can adopt a linkage scheme of half gears, single gears, double gears, or other types of gears, so as to achieve a compact layout and drive the main shaft 50 to rotate forward and reverse by only one driving member 20.

[0052] Specifically, a potentiometer 70 is provided on the axis of the fourth-stage gear 36. It can be understood that the fourth-stage gear 36 is meshed with the second-stage gear 34. When the second-stage gear 34 drives the third-stage gear 35 to rotate, the fourth-stage gear 36 will also rotate accordingly. The potentiometer 70 provided on the fourth-stage gear 36 can identify the rotation angle of the fourth-stage gear 36, and then identify the rotation angle of the third-stage gear 35 driving the main shaft 50 to rotate, so as to facilitate the control of the rotation angle of the main shaft 50.

[0053] Therefore, a potentiometer 70 may be provided on any one-stage gear 33 to also meet the functions of detecting the rotation angle of the main shaft 50 and improving the control accuracy of the deflection action.

[0054] For details, please refer to Figure 4As shown, a plurality of mounting datums are provided on the mounting seat 10, including a driving mounting datum 21, a zeroth mounting datum 321, a first mounting datum 331, a second mounting datum 341, and a fourth mounting datum 361, which respectively correspond to the driving member 20, the worm gear 32, and the first, second, and fourth gears 36. The third gear 35 is fixedly connected to the main shaft 50, and the top and bottom ends respectively abut against the bearing 60 and the limiting protrusion 51.

[0055] It is understandable that if other numbers of gear linkage schemes are adopted, the corresponding installation references will also change. In addition, the structure of these installation references is also variable, so as to provide a stable assembly and operating environment, unify the installation references and position accuracy between various components, and prevent poor meshing between various levels of gear transmission.

[0056] In addition, refer to Figure 1 and Figure 4 As shown, the mounting base 10 can also be divided into three parts, namely, a base 11, a front cover 12, and a lower cover 13, to achieve modularization, and to be produced, processed, and subsequently maintained separately. At this time, the lower half of the mounting base is set on the lower cover 13, and the front cover 12 is responsible for closing the damping mechanism 40 to prevent external interference therewith.

[0057] In this embodiment, please refer to Figure 1 As shown, a plurality of threaded holes are provided at the top of the main shaft 50, and the screen fixing frame 80 is connected to the main shaft 50 by bolts. The vehicle-mounted screen can be installed on the screen fixing frame 80 to isolate the vehicle-mounted screen from the main shaft 50 to prevent damage to the screen and the transmission structure including the main shaft 50 at the same time.

[0058] The specific application process of the utility model is as follows:

[0059] The driving member 20 rotates forward or reversely, and through the step-by-step transmission of the worm wheel 32, the worm 31 and the three gears, the main shaft 50 drives the screen fixing frame 80 to rotate forward or reversely. The potentiometer 70 identifies the rotation angle and accurately controls the left and right swing of the screen. During the rotation of the main shaft 50, the damping retaining spring and the damping sleeve 42 have an interference fit, so that the damping sleeve 42 shrinks toward the main shaft 50, increasing the friction between the damping sleeve 42 and the main shaft 50, counteracting the relative rotation between the damping sleeve 42 and the main shaft 50, providing damping force for the main shaft 50, and making the left and right swing of the screen more stable.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted damping yaw generating device, characterized in that: include: A mounting seat, wherein a driving member, a transmission mechanism, and a damping mechanism are arranged on the mounting seat, a main shaft is arranged at an output end of the transmission mechanism, the driving member drives the main shaft to rotate through the transmission mechanism, and the damping mechanism is arranged on the main shaft and provides a damping force for the rotation of the main shaft; Wherein, the damping mechanism comprises a damping sleeve movably sleeved on the main shaft, and an elastic member sleeved on the damping sleeve, and the elastic member presses the damping sleeve toward the main shaft.

2. A vehicle-mounted damping deflection generating device according to claim 1, characterized in that: A plurality of convex parts are arranged at intervals and around the outer periphery of the damping sleeve, the elastic member is sleeved on the outer periphery of the plurality of convex parts, and a plurality of grooves matching the plurality of convex parts are arranged on the mounting seat.

3. A vehicle-mounted damping deflection generating device according to claim 2, characterized in that: The damping sleeve is provided with a first opening, and the elastic member is provided with a second opening. The elastic member contracts the second opening to squeeze the damping sleeve, thereby contracting the first opening.

4. A vehicle-mounted damping deflection generating device according to claim 3, characterized in that: The elastic member includes a plurality of damping retaining springs, and the plurality of damping retaining springs are stacked.

5. The vehicle-mounted damping deflection generating device according to claim 1, characterized in that: The two ends of the main shaft are rotatably clamped on the mounting seat. The main shaft is also provided with a gap elimination mechanism, which includes a first sealing ring and a second sealing ring sleeved on the two ends of the main shaft. The outer periphery of the second sealing ring is sleeved with a bearing, and the upper end of the bearing is provided with a pressure plate.

6. A vehicle-mounted damping deflection generating device according to claim 5, characterized in that: The damping mechanism further includes a wave spring located between the pressure plate and the bearing.

7. The vehicle-mounted damping deflection generating device according to claim 1, characterized in that: The transmission mechanism includes a worm connected to the driving member, a worm wheel meshing with the worm, a primary gear meshing with the worm wheel, a secondary gear meshing with the primary gear, a third gear meshing with the second gear, and a fourth gear, wherein the third gear is fixedly connected to the main shaft.

8. A vehicle-mounted damping deflection generating device according to claim 7, characterized in that: A potentiometer is arranged on the four-stage gear.

9. The vehicle-mounted damping deflection generating device according to claim 7, characterized in that: The mounting seat is provided with a mounting reference which matches the driving member and the components of the transmission mechanism.

10. The vehicle-mounted damping deflection generating device according to claim 1, characterized in that: The main shaft is fixedly connected with a screen fixing frame for installing a vehicle-mounted screen.

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