Camera

Abstract

The present invention discloses a camera device, comprising: a ring-moving component, the ring-moving component having a stationary part and a rotating part, the stationary part being used to be fixedly connected to a fixed surface, the stationary part and the rotating part being coaxially arranged, and the rotating part being capable of horizontally rotating relative to the stationary part; a first camera component, the first camera component being coaxially hung on the rotating part, and being capable of pitching and rotating relative to the ring-moving component, and horizontally rotating relative to the stationary part under the drive of the rotating part; wherein the rotating part comprises: a driving motor; a reducer component, the reducer component being coaxially arranged with the stationary part, the reducer component being transmission-connected between the driving motor and the stationary part, the driving motor and the input end of the reducer component having a first transmission ratio, and the reducer component having a second transmission ratio; the first camera component and the output end of the reducer component rotate synchronously, the terminal transmission ratio of the first camera component corresponds to the second transmission ratio, and the second transmission ratio is greater than the first transmission ratio.

Description

Technical Field

[0001] The present invention relates to the technical field of camera equipment, and in particular to a camera device. Background Art

[0002] The existing ball machine plus ring action bolt structure is as follows Figure 1 As shown, the entire system consists of a top cover assembly 1, a bolt assembly 2, a circular motion assembly 3, and a dome camera 4. The top cover assembly 1 is relatively stationary and fixed to a bracket. The circular motion assembly 3 drives the bolt assembly 2 and dome camera 4 to rotate horizontally, achieving the overall circular motion function. The bolt assembly 2 itself can achieve independent horizontal and vertical rotation. The dome camera 4 can also achieve independent horizontal and vertical movement.

[0003] The ring-motion assembly 3 requires a certain degree of self-locking capability, but the short lifespan of worm gear transmissions cannot meet the product's five-year service life. Therefore, the conventional ring-motion transmission solution uses a permanent magnet stepper motor with a gearbox reduction gearbox and a single-stage reduction transmission with a transmission ratio of 4 to 6. This transmission can be selected from gears or synchronous belts according to specific space requirements.

[0004] This transmission method offers the advantages of low cost and easy installation. However, due to the gear drive at the terminal, there is some wobble due to backlash. Ring assembly 3 drives sphere 4. Due to backlash in the transmission terminal gears (which objectively exists because the gears cannot fully mesh, there must be clearance. Without backlash, the gears cannot be installed), vibration or external forces can result in approximately 1° of wobble. Although the motor shaft has motion damping, this cannot offset the backlash. This is reflected in dome camera 4, causing image offset at high magnifications. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a camera device, which increases the terminal transmission ratio of the camera component without changing the transmission structure, thereby enhancing the vibration resistance of the camera device and avoiding the problem of tooth gap movement caused by vibration, thereby causing picture offset.

[0006] One embodiment of the present invention provides a camera device, including:

[0007] An annular motion assembly, the annular motion assembly comprising a stationary portion and a rotating portion, the stationary portion being configured to be fixedly connected to a fixed surface, the stationary portion being coaxially disposed with the rotating portion, and the rotating portion being capable of horizontally rotating relative to the stationary portion;

[0008] a first camera assembly coaxially mounted on the rotating portion and capable of pitching relative to the rotating assembly and horizontally rotating relative to the stationary portion driven by the rotating portion;

[0009] Wherein, the rotating part includes:

[0010] Drive motor;

[0011] a reducer assembly, the reducer assembly being coaxially arranged with the stationary portion, the reducer assembly being transmission-connected between the drive motor and the stationary portion, the drive motor and the input end of the reducer assembly having a first transmission ratio, and the reducer assembly having a second transmission ratio;

[0012] The first camera assembly rotates synchronously with the output end of the reducer assembly, the terminal transmission ratio of the first camera assembly corresponds to the second transmission ratio, and the second transmission ratio is greater than the first transmission ratio.

[0013] In one embodiment, the rotating portion includes:

[0014] a housing, the top of which is closed by the stationary portion;

[0015] The reducer assembly includes:

[0016] an input end, the input end being drivingly connected to an output shaft of the drive motor via a synchronizing device, the synchronizing device having a first transmission ratio;

[0017] an output end, the output end and the input end having the second transmission ratio, the output end being fixedly connected to the housing;

[0018] A fixed end, the fixed end is fixedly connected to the stationary part, and the input end and the output end are rotatably supported on the fixed end.

[0019] In one embodiment, the synchronization device is a synchronous belt or a synchronous gear set, and the drive motor is offset from the reducer assembly.

[0020] In one embodiment, the drive motor is fixedly connected to the housing.

[0021] In one embodiment, the reducer assembly comprises a harmonic reducer, and the harmonic reducer comprises:

[0022] a harmonic generator, the harmonic generator forming the input terminal;

[0023] A rigid wheel, the rigid wheel forming the output end, the outer wall of the rigid wheel being fixedly connected to the housing;

[0024] The flexible spline is deformably engaged between the outer wall of the harmonic generator and the inner wall of the rigid spline.

[0025] In one embodiment, the reducer assembly comprises:

[0026] A transfer shaft is provided through the central axis of the harmonic reducer, and the top end of the transfer shaft is fixedly connected to the fixed end.

[0027] In one embodiment, the reducer assembly comprises:

[0028] a power supply board, the power supply board being fixed to the stationary portion;

[0029] A control board, the control board is fixed in the housing, and the power board and the control board are connected via a cable;

[0030] The adapter shaft is a hollow shaft, so as to form a passage for the cable in communication with the stationary portion and the interior of the housing in the axial direction thereof.

[0031] In one embodiment, the control board includes a photoelectric switch for the power board;

[0032] The reducer assembly includes a photoelectric baffle for triggering the photoelectric switch. The photoelectric baffle is installed at the bottom end of the adapter shaft. The photoelectric baffle can rotate horizontally relative to the control board to trigger the photoelectric switch corresponding to the position of the first camera assembly.

[0033] In one embodiment, the second gear ratio is at least ten times greater than the first gear ratio.

[0034] In one embodiment, the fixed end is fixedly connected to the stationary part via a clip.

[0035] In one embodiment, the method includes:

[0036] The second camera assembly is fixed to the housing and offset from the rotating portion so as to rotate horizontally relative to the stationary portion under the drive of the rotating portion.

[0037] It can be seen from the above technical solution that this embodiment increases the terminal transmission ratio of the camera assembly without changing the overall structure of the ring-shaped assembly. Therefore, the torque required for the shaking of the transmission device will also increase accordingly. Compared with the existing transmission structure, when the total transmission ratio is equal and the structure is the same (the lever arm is the same), a greater force is required to produce tooth clearance, thereby enhancing the vibration resistance of the camera device and avoiding the tooth clearance movement caused by vibration, which in turn causes the problem of image offset.

[0038] The ring-moving assembly 10 of this embodiment introduces a reducer assembly 40 coaxially arranged with the rotating part 12. The reducer assembly 40 is transmission-connected between the drive motor 30 and the stationary part 11, thereby increasing the transmission ratio of the entire ring-moving assembly 10 to the internal transmission ratio of the drive motor 30 × the first transmission ratio × the second transmission ratio. Among them, the first transmission ratio can correspond to Figure 3The transmission ratio of the first-stage reduction transmission in the comparative example is shown. However, in this embodiment, a reducer assembly 40 is added, which is coaxially arranged with the rotating portion 12, thereby changing the terminal transmission ratio of the camera assembly. The terminal transmission ratio of the camera assembly in this embodiment corresponds to the second transmission ratio. Therefore, compared with the comparative example, this embodiment provides an imaging device with an improved terminal transmission ratio and simultaneously provides an increased overall transmission ratio through the second-stage reduction transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following drawings are only used to schematically illustrate and explain the present invention and are not intended to limit the scope of the present invention.

[0040] Figure 1 It is a structural diagram of an existing circular motion camera device.

[0041] Figure 2 It is a cross-sectional view of a first embodiment of the ring-moving assembly of the camera device of the present invention.

[0042] Figure 3 It is a cross-sectional view of a second embodiment of an imaging device according to the present invention.

[0043] Figure 4 It is a schematic diagram of the principle of the harmonic reducer in the present invention.

[0044] Figure 5 It is a structural schematic diagram of the reducer assembly in the present invention.

[0045] Figure 6 It is an exploded view of the second embodiment of the reducer assembly in the present invention.

[0046] Figure 7 It is an exploded view of the second embodiment of the reducer assembly in the present invention.

[0047] Figure 8 FIG. 1 is a schematic diagram of the appearance of a third embodiment of an imaging device according to the present invention.

[0048] Figure 9 2 is an exploded schematic diagram of a third embodiment of the camera device of the present invention. DETAILED DESCRIPTION

[0049] In order to have a clearer understanding of the technical features, purposes and effects of the invention, specific embodiments of the present invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0050] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0051] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure and do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled.

[0052] In order to solve the technical problem of excessive tooth clearance in the camera device in the prior art, the purpose of the present invention is to provide a camera device, which increases the terminal transmission ratio of the camera assembly without changing the transmission structure, thereby enhancing the vibration resistance of the camera device and avoiding the problem of tooth clearance movement caused by vibration, thereby causing image offset.

[0053] Figure 2 FIG is a cross-sectional view of a first embodiment of the imaging device of the present invention. Figure 2 As shown, one embodiment of the present invention provides a camera device, including:

[0054] The ring-moving assembly 10 includes a stationary portion 11 and a rotating portion 12. The stationary portion 11 is used to be fixedly connected to a fixed surface. The stationary portion 11 and the rotating portion 12 are coaxially arranged. The rotating portion 12 can rotate horizontally relative to the stationary portion 11.

[0055] The first camera assembly 20 is coaxially mounted on the rotating portion 12 and can pitch relative to the rotating assembly 10 and horizontally rotate relative to the stationary portion 11 driven by the rotating portion 12;

[0056] The rotating part 12 includes:

[0057] Drive motor 30;

[0058] The reducer assembly 40 is coaxially arranged with the stationary portion 11. The reducer assembly 40 is transmission-connected between the drive motor 30 and the stationary portion 11. The drive motor 30 and the input end of the reducer assembly 40 have a first transmission ratio, and the reducer assembly 40 has a second transmission ratio.

[0059] The first camera assembly 20 rotates synchronously with the output end of the reducer assembly 40 . The terminal transmission ratio of the first camera assembly 20 corresponds to the second transmission ratio, and the second transmission ratio is greater than the first transmission ratio.

[0060] In order to solve the tooth gap problem in the prior art, this embodiment increases the terminal transmission ratio of the camera assembly without changing the overall structure of the ring-shaped assembly. Therefore, the torque required for the shaking of the transmission device will also increase accordingly. Compared with the existing transmission structure, when the total transmission ratio is equal and the structure is the same (the lever arm is the same), a greater force is required to produce tooth gap, thereby enhancing the vibration resistance of the camera device and avoiding the tooth gap movement caused by vibration, which in turn causes the problem of image offset.

[0061] In an existing comparative example, the transmission structure uses a permanent magnet stepper motor with a gearbox for speed reduction, coupled with a single-stage reduction transmission with a transmission ratio of 4 to 6. This transmission can be selected based on specific space requirements using either a gear drive or a synchronous belt drive. The terminal transmission ratio of the camera assembly corresponds to the transmission ratio of the single-stage reduction transmission, i.e., 4 to 6. This ratio cannot be increased further due to space limitations.

[0062] And as Figure 2 As shown, the ring-moving assembly 10 of this embodiment introduces a reducer assembly 40 coaxially arranged with the rotating part 12. The reducer assembly 40 is transmission-connected between the drive motor 30 and the stationary part 11, thereby increasing the transmission ratio of the entire ring-moving assembly 10 to the internal transmission ratio of the drive motor 30 × the first transmission ratio × the second transmission ratio. Among them, the first transmission ratio can correspond to Figure 3 The transmission ratio of the first-stage reduction transmission in the comparative example is shown. However, in this embodiment, a reducer assembly 40 is added, which is coaxially arranged with the rotating portion 12, thereby changing the terminal transmission ratio of the camera assembly. The terminal transmission ratio of the camera assembly in this embodiment corresponds to the second transmission ratio. Therefore, compared with the comparative example, this embodiment provides an imaging device with an improved terminal transmission ratio and simultaneously provides an increased overall transmission ratio through the second-stage reduction transmission.

[0063] In one embodiment, the second transmission ratio is at least ten times greater than the first transmission ratio. For example, the first transmission ratio is 5:1, the second transmission ratio is 50:1, and the total transmission ratio is 250:1. The second transmission ratio of 50:1 is the terminal transmission ratio, which is nearly 10 times greater than the terminal transmission ratio of 4 to 6 in the original gear transmission. Therefore, the torque required to cause the gear to wobble is also increased by 10 times. In other words, compared to the original structure, with the same total transmission ratio and the same structure (same lever arm), 10 times more force is required to produce backlash.

[0064] like Figure 3 and Figure 5 As shown, in a specific embodiment, the rotating portion 12 includes:

[0065] The housing 121 is enclosed on top by the stationary portion 11. Furthermore, the stationary portion 12 can be connected to the end cap 61 to further connect components such as the bracket;

[0066] The reducer assembly 40 includes:

[0067] An input terminal A is connected to the output shaft of the drive motor 30 via a synchronizing device, and the synchronizing device has a first transmission ratio;

[0068] Output terminal B, which has a second transmission ratio with respect to input terminal A, and is fixedly connected to housing 121;

[0069] The fixed end C is fixedly connected to the stationary portion 11 , and the input end A and the output end B are rotatably supported on the fixed end C.

[0070] The synchronizing device is a synchronous belt or a synchronous gear set, and the driving motor 30 is offset from the reducer assembly 40. The driving motor 30 is fixedly connected to the housing 121.

[0071] In this embodiment, in addition to providing an input end A and an output end B for the second transmission ratio, the reducer assembly 40 also provides a fixed end C for fixed connection to the stationary portion 11. The fixed end C is connected between the stationary portion 11 and the rotating portion 12. The fixed end C can be fixedly connected to the stationary portion 11 via a flange or other structure to bear the weight of the entire reducer assembly 40, as well as the rotating portion and the camera assembly mounted thereon.

[0072] In one embodiment, the reducer assembly 40 may include: Figure 4 The harmonic reducer shown in the figure. The harmonic reducer comprises three basic components: a harmonic generator 41, a flexible gear 43, and a rigid gear 42. The harmonic generator 41 is a component in which a thin-walled ball bearing is assembled on the outer periphery of an elliptical cam. The inner wheel of the bearing is fixed to the cam, and the outer wheel can be elastically deformed by the ball. The flexible gear 43 is a thin-walled metal elastic component with a gear engraved on the outer periphery of its opening. The bottom of the flexible gear (cup-shaped bottom) is called the diaphragm. The rigid gear 42 is a rigid annular component with a gear engraved on its inner periphery. It has 1-3 more teeth than the flexible gear 43. In the free state (without the generator), the two wheels are concentric, and the gaps between the teeth of the rigid and flexible gears are uniform. The generator installed in the flexible gear causes the flexible gear to deform radially, becoming elliptical.

[0073] Before assembly, the flexspline and its inner bore are circular. Once the wave generator is installed, the wave generator's length slightly exceeds the flexspline's inner diameter, causing the flexspline to assume an elliptical shape. This forces the flexspline to fully engage with the fixed rigid pulley along the ellipse's major axis and completely separate along its minor axis. The remaining teeth are either "engaged" or "disengaged," depending on the flexspline's rotational position. Because the rigid pulley is fixed, the flexspline rotates clockwise when the wave generator rotates counterclockwise. As the wave generator rotates continuously, the major and minor axes of the flexspline, as well as the positions of "engagement" and "disengagement," constantly change. The flexspline teeth shift from engagement to disengagement, then from engagement to disengagement, and then from disengagement to disengagement. This cycle of engagement, engagement, disengagement, disengagement, engagement, engagement, engagement, and so on repeats, forcing the flexspline to rotate continuously.

[0074] As the wave generator rotates, the flexspline rotates once when one of its teeth meshes with a tooth on the rigid wheel and then meshes with the same tooth on the rigid wheel again. During this time, the wave generator rotates many times. The ratio of the wave generator's rotations to the flexspline's rotations (one rotation) is the reduction ratio of the harmonic gear reducer, so its reduction ratio is very large. Throughout the entire motion process, the deformation of the flexspline forms a continuous simple harmonic waveform on the expanded diagram of the flexspline's circumference. Therefore, this transmission is called a harmonic gear drive.

[0075] Harmonic gear reducers are categorized by the number of mechanical waves: single-wave, double-wave, and triple-wave. Double-wave transmission is the most commonly used. In harmonic transmission, the difference in the number of teeth between the rigid and flexible gears should be equal to an integer multiple of the number of mechanical waves, usually equal to the number of waves.

[0076] Combine Figure 2 and Figure 5 As shown, the harmonic reducer in this embodiment includes:

[0077] a harmonic generator 41 , the harmonic generator 41 forming an input terminal;

[0078] The rigid wheel 42 is formed as an output end, and the outer wall of the rigid wheel 42 is fixedly connected to the housing 121;

[0079] The flexible spline 43 is deformably engaged between the outer wall of the harmonic generator 41 and the inner wall of the rigid spline 42 .

[0080] In this embodiment, a larger second transmission ratio is achieved by the harmonic reducer, thereby achieving the effect of increasing the terminal transmission ratio.

[0081] The harmonic reduction structure is mainly composed of a harmonic reducer, a synchronous pulley at the harmonic reducer end, a synchronous pulley at the motor end, a motor, a synchronous belt, a transfer shaft, and a transfer baffle.

[0082] The harmonic reducer consists of a relatively stationary component, a relatively moving component, and a harmonic generator. The relatively stationary component can be fixed to a relatively stationary structural component, while the relatively moving component can be fixed to a structural component that requires a high transmission ratio rotation. A 50 transmission ratio is generated between the relatively rotating and relatively stationary components.

[0083] The synchronous pulley at the harmonic reducer end is fixedly connected to the harmonic generator, which is the input end of the harmonics. In this case, the harmonic reducer and the motor are driven by synchronous pulleys and synchronous belts, producing a transmission ratio of 5. The synchronization device is not limited to this transmission method. Depending on the structural space, it can also be a single-stage reduction transmission such as gears, pulleys, sprockets, and rack and pinion drives.

[0084] This solution uses an HB motor, and the internal transmission ratio of the HB motor is 1. Therefore, the total transmission ratio = terminal transmission ratio (harmonic reduction transmission ratio) × input end transmission ratio (transmission ratio between synchronous wheels) × motor internal transmission ratio = 50 × 5 × 1 = 250, achieving a large terminal transmission ratio and eliminating the function of tooth clearance.

[0085] Among them, harmonic deceleration is divided into the static end and the moving end.

[0086] The stationary end is fixedly connected to the relatively stationary part by screws; the moving end is fixedly connected to the relatively moving part by screws.

[0087] The synchronous wheel is fixedly connected to the moving end by screws, the motor drives the synchronous wheel to rotate through the synchronous belt, and the motor is fixedly connected to the rotating part by screws.

[0088] The end cap and the central through hole of the harmonic component are added with a wiring structure, and a photoelectric trigger structure is fixed at the end to achieve zero-degree triggering of the motion position.

[0089] The harmonic reducer is sealed with the stationary parts through a sealing ring; and is sealed with the rotating parts through a sealing ring.

[0090] like Figure 5 and Figure 6 As shown, the reducer assembly 40 includes:

[0091] The adapter shaft 44 is passed through the central axis of the harmonic reducer, and the top end of the adapter shaft 44 is fixedly connected to the fixed end.

[0092] The reducer assembly 40 includes:

[0093] A power board 51 is fixed to the stationary portion 11;

[0094] The control board 52 is fixed in the housing 121, and the power board 51 is connected to the control board via a cable 53;

[0095] The adapter shaft 44 is a hollow shaft, so as to form a passage for the cable 53 in the axial direction thereof, which connects the stationary portion 11 and the interior of the housing 121 .

[0096] This embodiment takes into account the problems of line passing and photoelectric triggering, and adds a transfer shaft 44, whose screws are fixed to the harmonic reducer-relatively stationary part to achieve line passing in the middle of the harmonic reduction structure; adds a transfer baffle clamp fixing structure to achieve line passing in the middle and trigger the photoelectric switch function on the PCB board.

[0097] The control board 52 includes a photoelectric switch 521 for the power board 51;

[0098] The reducer assembly 40 includes a photoelectric baffle 45 for triggering the photoelectric switch 521. The photoelectric baffle 45 is installed at the bottom end of the adapter shaft 44. The photoelectric baffle 45 can rotate horizontally relative to the control board 52 to trigger the photoelectric switch 521 corresponding to the position of the first camera assembly 20.

[0099] Combine Figure 2 and Figure 7 As shown, the fixed end is fixedly connected to the stationary part 11 via a clamping spring 60 .

[0100] Figure 8 FIG. 1 is a schematic diagram of the appearance of a third embodiment of an imaging device according to the present invention. Figure 9 FIG. 1 is an exploded schematic diagram of a third embodiment of the camera device of the present invention. Figure 8 and Figure 9 As shown, the camera device of this embodiment further includes:

[0101] The second camera assembly 70 is fixed to the housing 121 and is offset from the rotating portion 12 so as to be driven by the rotating portion 12 to rotate horizontally relative to the stationary portion 11 .

[0102] The top cover assembly is relatively stationary and fixed to the bracket. The circular motion assembly drives the bolt assembly and dome camera for horizontal rotation, achieving integrated circular motion. The bolt assembly itself can achieve independent horizontal and vertical rotation. The dome camera itself can achieve independent horizontal and vertical movement. Fixing components such as the top cover adapter are fixedly connected to the top box of the circular motion assembly. The bolt assembly and dome camera are fixedly connected to the inner housing of the circular motion assembly. The circular motion drives the bolt and dome camera for rotation. The dome camera and bolt assembly can also achieve independent vertical and horizontal movement, achieving the bolt camera's purpose of wide-area monitoring.

[0103] In order to solve the tooth gap problem in the prior art, this embodiment increases the terminal transmission ratio of the camera assembly without changing the overall structure of the ring-shaped assembly. Therefore, the torque required for the shaking of the transmission device will also increase accordingly. Compared with the existing transmission structure, when the total transmission ratio is equal and the structure is the same (the lever arm is the same), a greater force is required to produce tooth gap, thereby enhancing the vibration resistance of the camera device and avoiding the tooth gap movement caused by vibration, which in turn causes the problem of image offset.

[0104] In an existing comparative example, the transmission structure uses a permanent magnet stepper motor with a gearbox for speed reduction, coupled with a single-stage reduction transmission with a transmission ratio of 4 to 6. This transmission can be selected based on specific space requirements using either a gear drive or a synchronous belt drive. The terminal transmission ratio of the camera assembly corresponds to the transmission ratio of the single-stage reduction transmission, i.e., 4 to 6. This ratio cannot be increased further due to space limitations.

[0105] The ring-moving assembly 10 of this embodiment introduces a reducer assembly 40 coaxially arranged with the rotating part 12. The reducer assembly 40 is transmission-connected between the drive motor 30 and the stationary part 11, thereby increasing the transmission ratio of the entire ring-moving assembly 10 to the internal transmission ratio of the drive motor 30 × the first transmission ratio × the second transmission ratio. Among them, the first transmission ratio can correspond to Figure 3 The transmission ratio of the first-stage reduction transmission in the comparative example is shown. However, in this embodiment, a reducer assembly 40 is added, which is coaxially arranged with the rotating portion 12, thereby changing the terminal transmission ratio of the camera assembly. The terminal transmission ratio of the camera assembly in this embodiment corresponds to the second transmission ratio. Therefore, compared with the comparative example, this embodiment provides an imaging device with an improved terminal transmission ratio and simultaneously provides an increased overall transmission ratio through the second-stage reduction transmission.

[0106] Herein, “a” or “an” does not mean limiting the number of the relevant parts of the present invention to “only one”, and “a” or “an” does not mean excluding the situation where the number of the relevant parts of the present invention is “more than one”.

[0107] Unless otherwise stated, numerical ranges herein include not only the entire range between its two endpoints but also the several sub-ranges contained therein.

[0108] The series of detailed descriptions listed above are merely specific descriptions of feasible implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not depart from the technical spirit of the present invention, such as the combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A camera device, characterized in that: include: A ring-moving assembly (10), the ring-moving assembly (10) comprising a stationary portion (11) and a rotating portion (12), the stationary portion (11) being used for fixed connection with a fixed surface, the stationary portion (11) and the rotating portion (12) being coaxially arranged, and the rotating portion (12) being capable of horizontally rotating relative to the stationary portion (11); a first camera assembly (20), the first camera assembly (20) being coaxially mounted on the rotating portion (12) and capable of pitching and rotating relative to the circumferentially movable assembly (10), and horizontally rotating relative to the stationary portion (11) driven by the rotating portion (12); Wherein, the rotating part (12) comprises: Drive motor (30); A reducer assembly (40), the reducer assembly (40) comprising a harmonic reducer, the reducer assembly (40) being coaxially arranged with the stationary portion (11), the reducer assembly (40) being transmission-connected between the drive motor (30) and the stationary portion (11), the drive motor (30) and an input end of the reducer assembly (40) having a first transmission ratio, and the reducer assembly (40) having a second transmission ratio; The first camera assembly (20) rotates synchronously with the output end of the reducer assembly (40), the terminal transmission ratio of the first camera assembly (20) corresponds to the second transmission ratio, and the second transmission ratio is greater than the first transmission ratio; The rotating part (12) comprises: a housing (121), wherein the top of the housing (121) is closed by the stationary portion (11); The reducer assembly (40) includes: An input end, the input end being transmission-connected to an output shaft of the drive motor (30) via a synchronization device, the synchronization device having a first transmission ratio; an output end, the output end and the input end having the second transmission ratio, the output end being fixedly connected to the housing (121); a fixed end, the fixed end being fixedly connected to the stationary portion (11), the input end and the output end being rotatably supported on the fixed end, the fixed end being fixedly connected to the stationary portion (11) via a retaining spring (60) to bear the weight of the reducer assembly (40), the rotating portion (12) and the first camera assembly (20); The second gear ratio is at least ten times greater than the first gear ratio.

2. The imaging device according to claim 1, wherein The synchronization device is a synchronization belt or a synchronization gear set, and the drive motor (30) and the reducer assembly (40) are offset.

3. The imaging device according to claim 1, wherein The drive motor (30) is fixedly connected to the housing (121).

4. The imaging device according to claim 1, wherein The harmonic reducer comprises: a harmonic generator (41), the harmonic generator (41) forming the input end; A rigid wheel (42), the rigid wheel (42) forming the output end, the outer wall of the rigid wheel (42) being fixedly connected to the housing (121); The flexible wheel (43) is deformably engaged between the outer wall of the harmonic generator (41) and the inner wall of the rigid wheel (42).

5. The imaging device according to claim 4, wherein: The reducer assembly (40) includes: A transfer shaft (44), the transfer shaft (44) is passed through the central axis of the harmonic reducer, and the top end of the transfer shaft (44) is fixedly connected to the fixed end.

6. The imaging device according to claim 5, wherein: The reducer assembly (40) includes: a power supply board (51), the power supply board (51) being fixed to the stationary portion (11); A control board (52), the control board (52) being fixed in the housing (121), and the power board (51) and the control board being connected via a cable (53); The adapter shaft (44) is a hollow shaft, so as to form a passage for the cable (53) in the axial direction thereof, which is connected to the stationary portion (11) and the interior of the housing (121).

7. The imaging device according to claim 6, wherein: The control board (52) includes a photoelectric switch (521) for the power board (51); The speed reducer assembly (40) includes a photoelectric baffle (45) for triggering the photoelectric switch (521). The photoelectric baffle (45) is installed at the bottom end of the adapter shaft (44). The photoelectric baffle (45) can rotate horizontally relative to the control board (52) to trigger the photoelectric switch (521) corresponding to the position of the first camera assembly (20).

8. The imaging device according to claim 1, wherein include: A second camera assembly (70) is fixed to the housing (121) and is offset from the rotating portion (12) so as to rotate horizontally relative to the stationary portion (11) under the drive of the rotating portion (12).

9. A camera device, characterized in that: include: A ring-moving assembly (10), the ring-moving assembly (10) comprising a stationary portion (11) and a rotating portion (12), the stationary portion (11) being used for fixed connection with a fixed surface, the stationary portion (11) and the rotating portion (12) being coaxially arranged, the rotating portion (12) being horizontally rotatable relative to the stationary portion (11), the rotating portion (12) comprising a housing (121), the top of the housing (121) being closed by the stationary portion (11); a first camera assembly (20), the first camera assembly (20) being coaxially mounted on the rotating portion (12) and capable of pitching and rotating relative to the circumferentially movable assembly (10), and horizontally rotating relative to the stationary portion (11) driven by the rotating portion (12); Wherein, the rotating part (12) comprises: a drive motor (30), the drive motor (30) being fixedly connected to the housing (121); A reducer assembly (40), the reducer assembly (40) and the stationary portion (11) are coaxially arranged, the reducer assembly (40) is transmission-connected between the drive motor (30) and the stationary portion (11), the drive motor (30) and the input end of the reducer assembly (40) have a first transmission ratio, and the reducer assembly (40) has a second transmission ratio; The first camera assembly (20) rotates synchronously with the output end of the reducer assembly (40), the terminal transmission ratio of the first camera assembly (20) corresponds to the second transmission ratio, and the second transmission ratio is greater than the first transmission ratio; The reducer assembly (40) includes a harmonic reducer and an adapter shaft (44), the adapter shaft (44) is arranged through the central axis of the harmonic reducer, the top end of the adapter shaft (44) is fixedly connected to the fixed end of the reducer assembly (40), and the fixed end is fixedly connected to the stationary part (11) via a retaining spring (60); The reducer assembly (40) further comprises: a power supply board (51), the power supply board (51) being fixed to the stationary portion (11); a control board (52), the control board (52) being fixed in the housing (121), the power supply board (51) and the control board being connected via a cable (53); the adapter shaft (44) being a hollow shaft, so as to form a passage for the cable (53) in the axial direction thereof, which is connected to the stationary portion (11) and the interior of the housing (121); The control board (52) includes a photoelectric switch (521) for the power board (51); The speed reducer assembly (40) includes a photoelectric baffle (45) for triggering the photoelectric switch (521). The photoelectric baffle (45) is installed at the bottom end of the adapter shaft (44). The photoelectric baffle (45) can rotate horizontally relative to the control board (52) to trigger the photoelectric switch (521) corresponding to the position of the first camera assembly (20).

10. The imaging device according to claim 9, wherein The reducer assembly (40) includes: An input end, the input end being transmission-connected to an output shaft of the drive motor (30) via a synchronization device, the synchronization device having a first transmission ratio; an output end, the output end and the input end having the second transmission ratio, the output end being fixedly connected to the housing (121); A fixed end, the fixed end is fixedly connected to the stationary part (11), and the input end and the output end are rotatably supported on the fixed end.

11. The imaging device according to claim 10, wherein: The synchronization device is a synchronization belt or a synchronization gear set, and the drive motor (30) and the reducer assembly (40) are offset.

12. The imaging device according to claim 9, wherein The reducer assembly (40) includes a harmonic reducer, and the harmonic reducer includes: a harmonic generator (41), the harmonic generator (41) forming the input end; A rigid wheel (42), the rigid wheel (42) forming the output end, the outer wall of the rigid wheel (42) being fixedly connected to the housing (121); The flexible wheel (43) is deformably engaged between the outer wall of the harmonic generator (41) and the inner wall of the rigid wheel (42).

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