A curved mirror rotating device

Abstract

A curved mirror rotating device. It includes a curved mirror, a lens bottom cover, a lens surface cover, a lens bracket, a shock absorbing spring, a turbine, and a reduction box; the lens bottom cover is clamped with the lens surface cover, the curved mirror is clamped between the lens bottom cover and the lens surface cover, and a rotating shaft is fixedly connected to both sides of the lens bottom cover; the lens bracket is an integrated bracket, and the rotating shafts on both sides of the lens bottom cover are rotatably arranged on the lens bracket; the lens bracket also extends a turbine bracket, and the turbine is connected to the rotating shaft and realizes coaxial rotation; the reduction box at least includes a motor, a multi-stage reduction gear set, and a worm, and the multi-stage reduction gear set at least includes an input gear and an output gear. The rotating shaft of the curved mirror rotating device is provided with a torsion spring, and the transmission mechanism adopts a turbine worm mode and an integrated bracket, which can realize stable rotation of the curved mirror, and at the same time has a shock-resistant function and high rotation accuracy.

Description

Technical Field

[0001] The invention relates to a vehicle-mounted head-up display device, in particular to a curved mirror rotating device with a torsion spring arranged on a rotating shaft, a transmission mechanism using a worm gear, and an integrated bracket, which can realize stable rotation of a curved mirror, has an anti-vibration function, and has high rotation accuracy. Background Art

[0002] With the development of the automobile industry, the technology of assisted driving is changing with each passing day, and the application of vehicle-mounted head-up display equipment is becoming more and more extensive. Its structure mainly includes light source, curved mirror, car windshield, and eye box.

[0003] The in-vehicle head-up display device obviously brings a lot of convenience to the driver. For example, it is more convenient to check important driving information such as speed and navigation without lowering the head, or to check the bottom and rear of the car without turning or lowering the head. This greatly facilitates the driver and allows him to concentrate more on driving the car, and the comfort level is also increased accordingly.

[0004] At the same time, there are still the following problems to be solved in the use of existing vehicle head-up display equipment:

[0005] 1. How to ensure accurate eye tracking due to different heights and driving habits of different people?

[0006] 2. Vehicles will produce vibrations and shakes of varying degrees while driving. How to ensure that the product's transmission system is not affected by vibrations and impact forces and maintains a good working condition? How to always ensure the driver's comfort and convenience in using the projection equipment and ensure that the projection of the optical lens is always clear and effective. Summary of the invention

[0007] The purpose of the present invention is to solve the above technical problems and to provide a curved mirror rotation device, wherein a torsion spring is arranged on the rotating shaft of the curved mirror rotation device, and the transmission mechanism adopts a worm gear method and an integrated bracket, which can realize stable rotation of the curved mirror, and at the same time has anti-vibration function and high rotation accuracy.

[0008] In order to solve the above-mentioned prior art problems, the technical solution of the present invention is:

[0009] The invention discloses a curved mirror rotating device, which comprises a curved mirror, a lens bottom cover, a lens surface cover, a lens bracket, a shock absorbing spring, a turbine, and a reduction box;

[0010] The lens bottom cover is snap-connected with the lens top cover, the curved mirror is clamped between the lens bottom cover and the lens top cover, and a rotating shaft is fixedly connected to both sides of the lens bottom cover;

[0011] The lens bracket is an integrated bracket, and the rotating shafts on both sides of the lens bottom cover are rotatably arranged on the lens bracket;

[0012] The lens bracket also extends out of a turbine bracket, the turbine is rotatably arranged on the turbine bracket, and the turbine is connected to the rotating shaft and realizes coaxial rotation, and then the turbine rotates coaxially with the lens bottom cover, the lens surface cover, and the curved mirror, and the turbine also includes a gear part;

[0013] The reduction box at least includes a motor, a multi-stage reduction gear set, and a worm. The multi-stage reduction gear set at least includes an input gear and an output gear. The motor includes an output shaft and the output shaft is fixedly connected to the input gear. The output gear is fixedly connected to the worm and rotates coaxially. The gear of the worm meshes with the gear of the turbine gear part, so that the motor drives the input gear, the output gear, the worm, and the turbine to rotate in sequence, thereby driving the curved mirror to rotate.

[0014] The shock absorbing spring is sleeved on any rotating shaft on both sides of the lens bottom cover.

[0015] Furthermore, the lens bottom cover adopts a thickened structure, and the middle of the lens bottom cover is a hollow structure, the hollow structure of the lens bottom cover is formed with a plurality of ribs, the rear end surface of the lens bottom cover matches the shape of the curved mirror, the lens bottom cover adopts a thickened, hollowed and reinforced structure, which can ensure the dimensional stability and surface accuracy of the curved mirror, the hollow structure prevents the size from shrinking, and the ribs ensure deformation and strength;

[0016] Further, a plurality of small bone positions are formed around the inner side surface of the lens surface cover, and a plurality of the small bone positions are contacted and limited with the curved mirror point, and a positioning column is formed on the left and right sides of the lens surface cover, and a positioning hole adapted to the positioning column is formed on the left and right sides of the lens bottom cover, respectively. The positioning columns on both sides of the lens surface cover pass through the positioning holes on both sides of the lens bottom cover, respectively, to realize the positioning of the lens surface cover and the lens bottom cover, and the lens bottom cover and the lens surface cover are also formed with a plurality of clamping structures, and the clamping structures respectively include a clamping male end and a clamping female end clamped to each other, and the lens bottom cover and the plurality of clamping structures of the lens surface cover are clamped, so that the lens bottom cover, the curved mirror, and the lens surface cover realize a screwless structure, which is convenient for assembly and saves time;

[0017] Further, the lens bracket is an integrated bracket, the integrated bracket includes a rear plate, two side plates extending forward from both ends of the rear plate, and two bottom plates extending outward from the lower ends of the two side plates respectively, the bottom plate of the integrated bracket is formed with a plurality of screw holes for fixing the rotating device to the vehicle body, a gourd-shaped open shaft hole is formed above the two side plates of the integrated bracket and close to the rear plate, the side plate on the right side of the integrated bracket also extends a turbine bracket outward, the turbine bracket is formed with a gourd-shaped open shaft hole with the same axis as the gourd-shaped open shaft hole of the side plate, the side plate on the right side of the integrated bracket is also formed with a plurality of screw holes for fixing the reduction box, and the rotating shafts on both sides of the lens bottom cover are rotatably arranged in the gourd-shaped open shaft holes of the side plates through bearings respectively;

[0018] Furthermore, the shock absorbing spring is a torsion spring having two torsion arms, the torsion spring is sleeved on the rotating shaft on the right side of the lens bottom cover, the two torsion arms are respectively clamped on the lens bottom cover and the integrated bracket, and the integrated bracket and the lens bottom cover are connected by the torsion spring to form a contraction force to fix the curved mirror without shaking;

[0019] Further, the turbine at least includes a connecting shaft and a gear portion formed with a continuous gear, the left side of the turbine connecting shaft extends into a square clamping shaft, the rotating shaft on the right side of the lens bottom cover is formed with a clamping shaft hole adapted to the square clamping shaft, the connecting shaft of the turbine is connected to the rotating shaft on the right side of the lens bottom cover to the left, and the square clamping shaft is embedded in the clamping shaft hole, and the connecting shaft of the turbine is rotated rightward and arranged in the gourd-shaped open shaft hole of the turbine bracket;

[0020] Further, the reduction box includes a motor, a PCB lower cover, a PCB upper cover, a PCB circuit board, a gear box left cover, a gear box right cover, a first-stage gear, a second-stage gear set, a third-stage gear set, a fourth-stage gear, a worm, a worm bottom cover, and a motor bracket. The motor bracket includes a rear plate for fixing the bracket, a left plate, and a right plate. The rear plate of the motor bracket is formed with a plurality of screw holes. The plurality of screw holes of the rear plate of the motor bracket are provided with bolts connected to the side plate on the right side of the integrated bracket to fix the reduction box.

[0021] Furthermore, the worm bottom cover is arranged at the left end of the worm, the four-stage gear is fixedly connected to the right end of the worm, and the four-stage gear and the worm are rotatably arranged between the left and right plates of the motor bracket through the same rotating shaft, the two-stage gear set includes a first gear and a second gear rotating coaxially, the three-stage gear set includes a third gear and a fourth gear rotating coaxially, the two-stage gear set and the three-stage gear set are rotatably arranged on the inner side of the right side plate of the motor bracket respectively, the motor is fixed to the outer side of the right side plate of the motor bracket, the motor includes an output shaft and the first-stage gear is fixedly connected to the output shaft, the first-stage gear is meshed with the first gear of the two-stage gear set, and the second gear of the two-stage gear set is meshed with the third-stage gear The third gear of the three-stage gear set is meshed with the fourth gear of the three-stage gear set, the fourth gear of the three-stage gear set is meshed with the fourth gear, the number of gears of the first gear is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the third gear of the three-stage gear set, and the number of gears of the fourth gear of the three-stage gear set is less than the number of gears of the fourth gear of the three-stage gear set, and the first gear, the two-stage gear set, the three-stage gear set, and the four-stage gear are driven to rotate in sequence by a motor, thereby driving the worm to rotate and realizing four-stage reduction;

[0022] Further, the PCB lower cover is snap-fitted with the PCB upper cover and the PCB lower cover is connected to the motor, the PCB circuit board is snap-fitted between the PCB lower cover and the PCB upper cover, the PCB circuit board is electrically connected to the motor to realize the circuit control of the motor, the gear box left cover is snap-fitted with the gear box right cover, and a gear box space is formed between the gear box left cover and the gear box right cover;

[0023] Furthermore, the motor, turbine and worm have a self-locking function, thereby achieving anti-vibration of the transmission mechanism, while also having a large speed ratio and smooth transmission.

[0024] The invention provides a curved mirror rotating device, which has the following beneficial effects:

[0025] 1. The rotating shaft is equipped with a torsion spring and the transmission mechanism adopts a worm gear and an integrated bracket. When the vehicle generates vibrations and shakes of varying sizes during driving, the transmission system of the product can be guaranteed not to be affected by vibrations and impact forces and maintain a good working condition;

[0026] 2. The transmission mechanism adopts a worm gear method, which has a self-locking function and can ensure the stable rotation of the curved mirror;

[0027] 3. The integrated bracket can reduce the error caused by assembly and has high rotation accuracy;

[0028] 4. The angle of the curved mirror can be easily adjusted. When people are of different heights and have different driving habits, it can ensure that the human eye accurately follows the projection display of the vehicle head-up display, always ensuring the comfort and convenience of the driver in using the projection equipment, and ensuring that the projection of the optical lens is always clear and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 , is a disassembled diagram of a curved mirror rotating device of the present invention;

[0030] Figure 2 ,for Figure 1 The three-dimensional embodiment shown Figure 1 ;

[0031] Figure 3 ,for Figure 1 The three-dimensional embodiment shown Figure 2 ;

[0032] Figure 4 ,for Figure 1 An exploded view of the reduction gearbox of the illustrated embodiment;

[0033] Figure 5 ,for Figure 1 A perspective view of the reduction gearbox of the illustrated embodiment;

[0034] Figure 6 ,for Figure 1 A perspective view of the lens holder of the illustrated embodiment;

[0035] Figure 7 ,for Figure 1 The connection diagram between the reduction gearbox and the turbine in the illustrated embodiment;

[0036] Figure 8 ,for Figure 1 Partial exploded view of the reduction gearbox and turbine in the illustrated embodiment. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with embodiments:

[0038] Example:

[0039] like Figure 1 to Figure 8 The present invention discloses a curved mirror rotating device, which comprises a curved mirror 1, a lens bottom cover 2, a lens surface cover 3, a lens bracket 4, a shock absorbing spring 5, a turbine 6, and a reduction box 7;

[0040] The lens bottom cover 2 is snap-connected with the lens top cover 3, the curved mirror 1 is sandwiched between the lens bottom cover 2 and the lens top cover 3, and a rotating shaft 21 is fixedly connected to both sides of the lens bottom cover;

[0041] The lens bracket 4 is an integrated bracket, and the rotating shafts 21 on both sides of the lens bottom cover are rotatably arranged on the lens bracket 4;

[0042] The lens bracket 4 also extends a turbine bracket 41, the turbine 6 is rotatably arranged on the turbine bracket 41, and the turbine is connected to the rotating shaft and realizes coaxial rotation, and then the turbine rotates coaxially with the lens bottom cover, the lens surface cover, and the curved mirror, and the turbine 6 also includes a gear part 61;

[0043] The reduction box 7 at least includes a motor 71, a multi-stage reduction gear set, and a worm 72. The multi-stage reduction gear set at least includes an input gear 73 and an output gear 74. The motor includes an output shaft and the output shaft is fixedly connected to the input gear. The output gear 74 is fixedly connected to the worm 72 and rotates coaxially. The gear of the worm 72 is meshed with the gear of the turbine gear part 61, so that it is driven by the motor to drive the input gear, the output gear in turn.

[0044] The wheel, worm, and turbine rotate, thereby driving the curved mirror to rotate;

[0045] The shock absorbing spring 5 is sleeved on any one of the rotating shafts on both sides of the lens bottom cover.

[0046] Furthermore, the lens bottom cover 2 adopts a thickened structure, and the middle of the lens bottom cover 2 is a hollow structure 22, and the hollow structure of the lens bottom cover is formed with a plurality of ribs 23. The rear end surface of the lens bottom cover matches the shape of the curved mirror. The lens bottom cover adopts a thickened, hollowed and reinforced structure, which can ensure the dimensional stability and surface accuracy of the curved mirror. The hollow structure prevents the size from shrinking, and the ribs ensure deformation and strength.

[0047] Further, a plurality of small bone positions 31 are formed around the inner side surface of the lens cover 3, and the plurality of small bone positions are contacted with the curved mirror for limiting position, and positioning posts 32 are formed on the left and right sides of the lens cover, and positioning holes 24 adapted to the positioning posts are formed on the left and right sides of the lens bottom cover, respectively. The positioning posts on both sides of the lens cover pass through the positioning holes on both sides of the lens bottom cover, respectively, to realize the positioning of the lens cover and the lens bottom cover, and the lens bottom cover and the lens cover are further formed with a plurality of snap-fitting structures 25, and the snap-fitting structures respectively include snap-fitting male ends and snap-fitting female ends that are snap-fitted to each other, and the plurality of snap-fitting structures of the lens bottom cover and the lens cover are snap-fitted, so that the lens bottom cover, the curved mirror, and the lens cover realize a screw-free structure, which is convenient for assembly and saves time;

[0048] Further, the lens bracket 4 is an integrated bracket, which includes a rear plate 42, two side plates 43 extending forward from both ends of the rear plate, and two bottom plates 44 extending outward from the lower ends of the two side plates, respectively. The bottom plate of the integrated bracket is formed with a plurality of screw holes for fixing the rotating device to the vehicle body, and a gourd-shaped open shaft hole 43a is formed above the two side plates of the integrated bracket and close to the rear plate, respectively. The side plate on the right side of the integrated bracket also extends a turbine bracket 41 outward, and the turbine bracket is formed with a gourd-shaped open shaft hole 41a with the same axis as the gourd-shaped open shaft hole of the side plate. The side plate on the right side of the integrated bracket is also formed with a plurality of screw holes for fixing the reduction box, and the rotating shafts on both sides of the lens bottom cover are rotatably arranged in the gourd-shaped open shaft holes of the side plates through bearings;

[0049] Furthermore, the shock absorbing spring 5 is a torsion spring, and the torsion spring has two torsion arms 51, and the torsion spring is sleeved on the rotating shaft on the right side of the lens bottom cover, and the two torsion arms are respectively clamped on the lens bottom cover and the integrated bracket, and the integrated bracket and the lens bottom cover are connected by the torsion spring to form a contraction force to fix the curved mirror without shaking;

[0050] Further, the turbine 6 at least includes a connecting shaft 62 and a gear portion 61 formed with a continuous gear, the left side of the turbine connecting shaft extends into a square clamping shaft 62a, the rotating shaft on the right side of the lens bottom cover is formed with a clamping shaft hole adapted to the square clamping shaft, the connecting shaft of the turbine is connected to the rotating shaft on the right side of the lens bottom cover to the left, and the square clamping shaft is embedded in the clamping shaft hole, and the connecting shaft 62 of the turbine is rotated rightward and arranged in the gourd-shaped opening shaft hole 41a of the turbine bracket;

[0051] The reduction box 7 at least includes a motor 71, a multi-stage reduction gear set, and a worm 72. The multi-stage reduction gear set at least includes an input gear 73 and an output gear 74. The motor includes an output shaft and the output shaft is fixedly connected to the input gear. The output gear 74 is fixedly connected to the worm 72 and rotates coaxially. The gear of the worm 72 is meshed with the gear of the turbine gear part 61, so that the motor drives the input gear, the output gear, the worm, and the turbine to rotate in sequence, thereby driving the curved mirror to rotate.

[0052] Further, the reduction box 7 includes a motor 71, a PCB lower cover 75a, a PCB upper cover 75b, a PCB circuit board 75c, a gear box left cover 76a, a gear box right cover 76b, a first-stage gear 73, a second-stage gear set, a third-stage gear set, a fourth-stage gear 74, a worm 72, a worm bottom cover 77, and a motor bracket 78. The motor bracket 78 includes a rear plate 78a for bracket fixing, a left side plate 78b, and a right side plate 78c. The rear plate of the motor bracket is formed with a plurality of screw holes. The plurality of screw holes of the rear plate of the motor bracket are provided with bolts to connect with the side plate on the right side of the integrated bracket to fix the reduction box.

[0053] Further, the worm bottom cover 77 is arranged at the left end of the worm 72, the four-stage gear 74 is fixedly connected to the right end of the worm, and the four-stage gear and the worm are rotatably arranged between the left and right plates of the motor bracket through the same rotating shaft, the two-stage gear set includes a first gear 79a and a second gear 79b that rotate coaxially, and the three-stage gear set includes a third gear 79c and a fourth gear 79d that rotate coaxially, and the two-stage gear set and the three-stage gear set are rotatably arranged on the inner side of the right side plate 78c of the motor bracket respectively, and the motor 71 is fixed to the outer side of the right side plate 78c of the motor bracket, and the motor includes an output shaft and the first-stage gear is fixedly connected to the output shaft, and the first-stage gear is meshed with the first gear of the two-stage gear set, and the two-stage gear set is meshed with the first gear of the two-stage gear set. The second gear of the gear set is meshed with the third gear of the three-stage gear set, and the fourth gear of the three-stage gear set is meshed with the four-stage gear, the number of gears of the first-stage gear is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the third gear of the three-stage gear set, and the number of gears of the fourth gear of the three-stage gear set is less than the number of gears of the third gear of the three-stage gear set, and the number of gears of the fourth gear of the three-stage gear set is less than the number of gears of the four-stage gear, and the first-stage gear, the two-stage gear set, the three-stage gear set, and the four-stage gear are driven to rotate in sequence by a motor, thereby driving the worm to rotate and realizing four-stage reduction;

[0054] Further, the PCB lower cover is snap-fitted with the PCB upper cover and the PCB lower cover is connected to the motor, the PCB circuit board is snap-fitted between the PCB lower cover and the PCB upper cover, the PCB circuit board is electrically connected to the motor to realize the circuit control of the motor, the gear box left cover is snap-fitted with the gear box right cover, and a gear box space is formed between the gear box left cover and the gear box right cover;

[0055] Furthermore, the motor, turbine and worm have a self-locking function, thereby achieving anti-vibration of the transmission mechanism, while also having a large speed ratio and smooth transmission.

[0056] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A curved mirror rotating device, characterized in that: It includes a curved mirror, a lens bottom cover, a lens surface cover, a lens bracket, a shock absorbing spring, a turbine, and a reduction box; The lens bottom cover is snap-connected with the lens top cover, the curved mirror is clamped between the lens bottom cover and the lens top cover, and a rotating shaft is fixedly connected to both sides of the lens bottom cover; The lens bracket is an integrated bracket, and the rotating shafts on both sides of the lens bottom cover are rotatably arranged on the lens bracket; The lens bracket also extends out of a turbine bracket, the turbine is rotatably arranged on the turbine bracket, and the turbine is connected to the rotating shaft and realizes coaxial rotation, and then the turbine rotates coaxially with the lens bottom cover, the lens surface cover, and the curved mirror, and the turbine also includes a gear part; The reduction box at least includes a motor, a multi-stage reduction gear set, and a worm. The multi-stage reduction gear set at least includes an input gear and an output gear. The motor includes an output shaft and the output shaft is fixedly connected to the input gear. The output gear is fixedly connected to the worm and rotates coaxially. The gear of the worm meshes with the gear of the turbine gear part, so that the motor drives the input gear, the output gear, the worm, and the turbine to rotate in sequence, thereby driving the curved mirror to rotate. The shock absorbing spring is sleeved on any rotating shaft on both sides of the lens bottom cover; The reduction box includes a motor, a PCB lower cover, a PCB upper cover, a PCB circuit board, a gear box left cover, a gear box right cover, a first-stage gear, a second-stage gear set, a third-stage gear set, a fourth-stage gear, a worm, a worm bottom cover, and a motor bracket. The motor bracket includes a rear plate for fixing the bracket, a left plate, and a right plate. The rear plate of the motor bracket is formed with a plurality of screw holes. The plurality of screw holes of the rear plate of the motor bracket are provided with bolts connected to the side plate on the right side of the integrated bracket to fix the reduction box. The worm bottom cover is arranged at the left end of the worm, the four-stage gear is fixedly connected to the right end of the worm, and the four-stage gear and the worm are rotatably arranged between the left and right plates of the motor bracket through the same rotating shaft, the two-stage gear set includes a first gear and a second gear rotating coaxially, the three-stage gear set includes a third gear and a fourth gear rotating coaxially, the two-stage gear set and the three-stage gear set are rotatably arranged on the inner side of the right side plate of the motor bracket respectively, the motor is fixed to the outer side of the right side plate of the motor bracket, the motor includes an output shaft and the first-stage gear is fixedly connected to the output shaft, the first-stage gear is meshed with the first gear of the two-stage gear set, and the second gear of the two-stage gear set is meshed with the third gear of the three-stage gear set The third gear is meshed, the fourth gear of the three-stage gear set is meshed with the four-stage gear, the number of gears of the first gear is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the first gear of the two-stage gear set, and the number of gears of the second gear of the two-stage gear set is less than the number of gears of the third gear of the three-stage gear set, and the number of gears of the fourth gear of the three-stage gear set is less than the number of gears of the third gear of the three-stage gear set, and the number of gears of the fourth gear of the three-stage gear set is less than the number of gears of the four-stage gear, and the first gear, the two-stage gear set, the three-stage gear set, and the four-stage gear are driven to rotate in sequence by a motor, thereby driving the worm to rotate and realizing four-stage reduction; The lens bracket is an integrated bracket, which includes a rear plate, two side plates extending forward from both ends of the rear plate, and two bottom plates extending outward from the lower ends of the two side plates respectively. The bottom plate of the integrated bracket is formed with a plurality of screw holes for fixing the rotating device to the vehicle body. A gourd-shaped open shaft hole is formed above the two side plates of the integrated bracket and close to the rear plate respectively. The side plate on the right of the integrated bracket also extends a turbine bracket outward. The turbine bracket is formed with a gourd-shaped open shaft hole with the same axis as the gourd-shaped open shaft hole of the side plate. The side plate on the right of the integrated bracket is also formed with a plurality of screw holes for fixing the reduction gearbox. The rotating shafts on both sides of the lens bottom cover are rotatably arranged in the gourd-shaped open shaft holes of the side plates through bearings.

2. A curved mirror rotating device according to claim 1, characterized in that: The lens bottom cover adopts a thickened structure, and the middle of the lens bottom cover is a hollow structure. The hollow structure of the lens bottom cover is formed with multiple ribs. The rear end face of the lens bottom cover matches the shape of the curved mirror. The lens bottom cover adopts a thickened, hollowed and reinforced structure, which can ensure the dimensional stability and surface accuracy of the curved mirror. The hollow structure prevents size shrinkage, and the ribs ensure deformation and strength.

3. A curved mirror rotating device according to claim 2, characterized in that: A plurality of small bone positions are formed around the inner side surface of the lens surface cover, and the plurality of small bone positions are contacted and limited with the curved mirror point. Positioning posts are respectively formed on the left and right sides of the lens surface cover, and positioning holes corresponding to the positioning posts are respectively formed on the left and right sides of the lens bottom cover. The positioning posts on both sides of the lens surface cover respectively pass through the positioning holes on both sides of the lens bottom cover to realize the positioning of the lens surface cover and the lens bottom cover. The lens bottom cover and the lens surface cover are also formed with a plurality of snap-in structures, and the snap-in structures respectively include a snap-in male end and a snap-in female end that are snap-in to each other, and the lens bottom cover and the multiple snap-in structures of the lens surface cover are snap-in to each other.

4. The curved mirror rotating device according to claim 1, characterized in that: The shock-absorbing spring is a torsion spring having two torsion arms. The torsion spring is sleeved on the rotating shaft on the right side of the lens bottom cover. The two torsion arms are respectively clamped on the lens bottom cover and the integrated bracket. The integrated bracket and the lens bottom cover are connected by the torsion spring to form a contraction force to fix the curved mirror without shaking.

5. The curved mirror rotating device according to claim 1, characterized in that: The turbine at least includes a connecting shaft and a gear portion formed with a continuous gear. The left side of the turbine connecting shaft extends into a square clamping shaft. The rotating shaft on the right side of the lens bottom cover is formed with a clamping shaft hole adapted to the square clamping shaft. The connecting shaft of the turbine is connected to the rotating shaft on the right side of the lens bottom cover to the left, and the square clamping shaft is embedded in the clamping shaft hole. The connecting shaft of the turbine is rotatable to the right and is arranged in the gourd-shaped open shaft hole of the turbine bracket.

6. The curved mirror rotating device according to claim 1, characterized in that: The PCB lower cover is snap-fitted with the PCB upper cover and the PCB lower cover is connected to the motor, the PCB circuit board is snap-fitted between the PCB lower cover and the PCB upper cover, the PCB circuit board is electrically connected to the motor to realize circuit control of the motor, the gear box left cover is snap-fitted with the gear box right cover, and a gear box space is formed between the gear box left cover and the gear box right cover.

7. The curved mirror rotating device according to claim 1, characterized in that: The motor, turbine and worm have a self-locking function, thereby realizing the anti-vibration of the transmission mechanism, and at the same time, the speed ratio is large and the transmission is stable.

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