Low-cost camera rotating mechanism and working method thereof

Abstract

The invention discloses a low-cost camera rotating mechanism and a working method thereof, relates to the related field of camera rotation, and aims to solve the problems that in the prior art, the manufacturing cost is increased and the occupied space is large due to bearing installation. A closed top cover is arranged at the upper end of the outer part of the bearing inner ring; a bearing outer ring is arranged in the U-shaped frame along the outer part of the peripheral part of the bearing inner ring, a fixing hole is formed in the bearing outer ring, a screw hole is formed in the U-shaped frame, and the U-shaped frame and the bearing outer ring are fixed through a screw; a rolling body assembly is arranged between the bearing outer ring and the bearing inner ring, the rolling body assembly is composed of a bearing retainer and rotating balls, twenty-eight ball groove positions are formed in the bearing retainer, and one rotating ball is placed in each groove position. And the bearing inner ring, the bearing outer ring, the bearing retainer and the twenty-eight rotating balls form a set of rolling bearing structure.

Description

Technical Field

[0001] The present invention relates to the field related to camera rotation, and in particular to a low-cost camera rotation mechanism and a working method thereof. Background Art

[0002] With the rise of AI, the functions of video equipment such as smart homes, self-media equipment, and video conferencing are becoming more and more complete. Video cameras not only need to be used at fixed points, but also need to rotate continuously during recording to meet more complex functional applications. As the core component for realizing multi-angle visual acquisition, the market demand for camera rotation mechanism has shown explosive growth.

[0003] Traditional camera rotation mechanisms generally use motor-driven pan / tilts to achieve 360° rotation, and one or two standard bearings are usually installed on the rotating structure.

[0004] However, with the increasing size and miniaturization of camera products, standard bearing installation methods are becoming increasingly unsuitable. This is primarily due to two reasons. First, installing bearings increases the overall manufacturing cost of the mechanism, including the purchase cost of the bearings themselves and the need for additional parts such as the pressure plate to secure them. Second, installing bearings takes up a large amount of space, making the entire rotating mechanism less compact, making it unsuitable for miniaturized products and unsuitable for use in space-constrained applications. Summary of the Invention

[0005] The object of the present invention is to provide a low-cost camera rotation mechanism and a working method thereof, so as to solve the problem proposed in the above background technology that the installation of bearings will increase the production cost and occupy a large space.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a low-cost camera rotation mechanism, comprising a fixing assembly and a U-frame, the fixing assembly comprising a bearing inner ring, a closed top cover being provided at the outer upper end of the bearing inner ring, an outer closed connecting snap ring being provided at the periphery of the closed top cover, a card slot being provided on the U-frame, and the U-frame and the closed top cover being fixed by the cooperation relationship between the outer closed connecting snap ring and the card slot; a bearing outer ring being provided at the outer side of the outer edge of the bearing inner ring along the inner edge of the U-frame, a fixing hole being provided on the bearing outer ring, and a screw hole being provided on the U-frame, and the U-frame and the bearing outer ring being fixed by screws; a rolling element assembly being provided between the bearing outer ring and the bearing inner ring, the rolling element assembly being composed of a bearing retainer and a rotating ball, twenty-eight ball slots being provided on the bearing retainer, a rotating ball being placed on each slot, and the bearing inner ring, the bearing outer ring, the bearing retainer and the twenty-eight rotating balls forming a set of rolling bearing structures; the closed top cover, the U-frame and the bearing outer ring are fixed to form the basic framework of the rotating assembly.

[0007] Preferably, a mounting bracket is provided upwardly from the central portion of the outer ring of the bearing, a screw hole is provided on the mounting bracket, and a motor mounting groove is formed in the mounting bracket.

[0008] Preferably, a driving motor is installed in the motor mounting groove, and the driving motor is fixed to the outer ring of the bearing by screws.

[0009] Preferably, a circular boss is provided downwardly at the center part of the inner ring of the bearing, a connecting tooth portion is provided on the outer circumference of the circular boss, a countersunk hole is provided on the boss surface of the circular boss, and a rotating gear is matched with the output shaft of the driving motor. The rotating gear is fixed to the output shaft of the driving motor by a screw, and the rotating gear is meshed with the connecting tooth portion on the inner ring of the bearing to form a first-stage gear transmission mechanism.

[0010] Preferably, the fixing assembly further comprises a boom bracket, the lower end surface of the boom bracket is provided with a screw hole, and the inner ring of the bearing is fixed to the boom bracket by a countersunk screw.

[0011] Preferably, a first annular groove is provided at the connection position between the boom bracket and the closed top cover, and a first sealing ring is embedded in the first annular groove, and the first sealing ring performs rotational sealing. A second annular groove is provided at the connection position between the closed top cover and the outer closed connecting clamp, and a second sealing ring is embedded in the second annular groove, and the second sealing ring performs static sealing. The closed top cover, U frame, first sealing ring, second sealing ring, bearing outer ring, drive motor and connecting tooth portion are fixed to form a complete rotating assembly.

[0012] Preferably, the U frame is composed of an outer frame, an inner frame and an upper connecting frame. The inner frame is located on the inner side of the outer frame, and the upper connecting frame is located at the upper end between the two inner frames. The outer frame, the inner frame and the upper connecting frame are integrally formed, and the drive motor is installed at the upper end of the upper connecting frame.

[0013] Preferably, an action groove is formed in the inner frame and the upper connecting frame, a lower camera mounting frame is provided in the action groove, and a groove is opened on the side of the lower camera mounting frame to form a camera mounting groove.

[0014] Preferably, a side rotating part is fixed on one side of the lower camera mounting frame, and the side rotating part is rotatably connected to the U frame through a bearing. A heat dissipation hole groove is provided on the other side of the lower camera mounting frame, and a lower circuit groove is provided on the lower end surface of the lower camera mounting frame.

[0015] A working method comprises the following steps:

[0016] Step 1: The driving motor drives the rotating gear to rotate. Since the inner ring of the bearing on the fixed assembly is fixed to the building, and the inner ring and the outer ring of the bearing are rotationally isolated by the rolling element assembly, the driving motor and the rotating gear are driven to rotate along the inner ring of the bearing through the meshing connection between the rotating gear and the external connecting teeth of the circular boss;

[0017] Step 2: Due to the fixed relationship between the drive motor and the mounting bracket on the bearing outer ring, the fixed relationship between the bearing outer ring and the U-frame, the fixed relationship between the U-frame and the closed top cover and the outer closed connecting clamp, and the rotary sealing relationship between the boom bracket and the closed top cover, the rotating assembly rotates around the fixed assembly;

[0018] Step 3: Install the camera in the camera mounting slot, and the rotation of the U bracket drives the camera to rotate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) In this invention, the rolling element assembly is as large as possible, and the driving motor is arranged in the internal space of the rolling bearing structure. The bearing rotation diameter can be maximized. When the overall structure of the rotating assembly rotates, the swing amplitude is minimized and the overall stability is better. At the same time, the rolling element assembly does not occupy the middle part of the space, thereby making the overall structure smaller, especially the height dimension.

[0021] (2) This invention integrates the rolling bearing structure into the rotating assembly through a unique structural design, avoiding the cost increase caused by installing additional bearings. At the same time, it reduces the number of parts and assembly processes, thereby lowering production and maintenance costs.

[0022] (3) In this invention, an integrated bearing structure is adopted, and a connecting tooth portion is provided on the outer side of the circular boss downwardly provided on the center part of the inner ring of the bearing, that is, the transmission functional part and the rotating functional part are integrated into one; the outer ring of the bearing fixes the motor and the U-frame, that is, the supporting part and the rotating functional part are integrated into one; the number of overall parts is greatly reduced, the structure is simpler, the failure points are reduced, and the space utilization rate is higher, thereby making the overall size smaller.

[0023] (4) In this invention, the smooth rotation of the rotating assembly is achieved through the coordination of the gear transmission mechanism and the rolling bearing structure. The gear transmission has high transmission accuracy and efficiency, which can ensure the accuracy and stability of the camera rotation. The rolling bearing structure reduces friction during the rotation process, reduces energy loss, improves transmission efficiency, and can withstand large loads, ensuring the reliability of the rotating assembly during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the main viewing angle of a low-cost camera rotation mechanism of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of a low-cost camera rotation mechanism at an upward viewing angle according to the present invention;

[0026] Figure 3It is a front view of a low-cost camera rotation mechanism of the present invention;

[0027] Figure 4 AA cross-sectional view of a low-cost camera rotation mechanism of the present invention;

[0028] Figure 5 This is a cross-sectional view of a low-cost camera rotation mechanism of the present invention at position BB;

[0029] Figure 6 A side view of a low-cost camera rotation mechanism of the present invention;

[0030] Figure 7 1. It is a cross-sectional view at CC of a low-cost camera rotation mechanism of the present invention;

[0031] Figure 8 This is a schematic structural diagram of a low-cost camera rotation mechanism according to the present invention, with the outer closed connection ring removed from the rotation assembly;

[0032] Figure 9 This is a bottom-up structural diagram of the connection between a fixed component and a bearing outer ring of a low-cost camera rotation mechanism of the present invention;

[0033] Figure 10 This is a schematic structural diagram of a rolling element assembly of a low-cost camera rotation mechanism of the present invention.

[0034] In the figure: 1. Fixed component; 2. Hanger bracket; 3. Bearing inner ring; 4. Rotating component; 5. Closed top cover; 6. External closed connecting clamp; 7. U-frame; 8. Outer frame; 9. Inner frame; 10. Upper connecting frame; 11. Action groove; 12. First sealing ring; 13. Second sealing ring; 14. Bearing outer ring; 15. Mounting bracket; 16. Motor mounting groove; 17. Bearing retainer; 18. Rotating ball; 19. Rolling element assembly; 20. Driving motor; 21. Rotating gear; 22. Round boss; 23. Connecting tooth; 24. Lower camera mounting bracket; 25. Camera mounting groove; 26. Side rotating part; 27. Lower line slot; 28. Heat dissipation hole slot. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figures 1-10 , an embodiment provided by the present invention:

[0037] (1) Connection between fixed component and rotating component

[0038] The fixing assembly 1 consists of a bearing inner ring 3 and a boom bracket 2. The lower end surface of the boom bracket 2 is provided with screw holes, which are secured to the bearing inner ring 3 and boom bracket 2 using countersunk screws. This fixing method allows the fixing assembly 1 to be stably installed on the building, providing reliable support for the entire rotating mechanism. Furthermore, the countersunk screw design creates a smoother surface after installation, reducing potential interference with surrounding objects caused by protruding screws.

[0039] A closed top cover 5 is provided at the outer upper end of the bearing inner ring 3, and an external closed connecting snap ring 6 is provided on the periphery of the closed top cover 5. A retaining groove is provided on the U-frame 7, and the U-frame 7 and the closed top cover 5 are fixed together by the cooperation between the external closed connecting snap ring 6 and the retaining groove, ensuring a stable connection between the U-frame 7 and the closed top cover 5, avoiding the increased cost and installation difficulties caused by a complex connection structure.

[0040] A bearing outer ring 14 is disposed outside the outer portion of the bearing inner ring 3 along the inner edge of the U-frame 7. The bearing outer ring 14 is provided with fixing holes, and the U-frame 7 is provided with screw holes. Screws secure the U-frame 7 to the bearing outer ring 14, making the connection between the U-frame 7 and the bearing outer ring 14 more secure, capable of withstanding large external forces and vibrations, and ensuring the stability of the rotating assembly 4 during operation. Furthermore, screw fastening facilitates disassembly and maintenance. When components need to be replaced or repaired, the screws can be easily removed, improving the maintainability of the equipment.

[0041] A first annular groove is provided at the connection position between the boom bracket 2 and the closed top cover 5, and a first sealing ring 12 is embedded in the first annular groove, and the first sealing ring 12 performs a rotational seal. A second annular groove is provided at the connection position between the closed top cover 5 and the outer closed connecting clamp 6, and a second sealing ring 13 is embedded in the second annular groove, and the second sealing ring 13 performs a static seal. It effectively prevents external impurities such as dust and moisture from entering the interior of the rotating component 4, protects the internal driving structure, rotating structure and other components, and extends the service life of the equipment. At the same time, the rotary sealing design of the first sealing ring 12 can adapt to the rotational motion of the rotating component 4. While ensuring the sealing effect, it will not generate excessive resistance to the rotational motion, ensuring the flexible rotation of the rotating component 4. The static sealing design of the second sealing ring 13 further enhances the reliability of the seal, and prevents component damage and malfunctions caused by the entry of external impurities.

[0042] (2) Design of rolling element assembly

[0043] A rolling element assembly 19 is positioned between the bearing outer ring 14 and the bearing inner ring 3. This assembly consists of a bearing retainer 17 and rotating balls 18. The bearing retainer 17 is equipped with twenty-eight ball slots, each housing a rotating ball 18. The bearing inner ring 3, the bearing outer ring 14, the bearing retainer 17, and the twenty-eight rotating balls 18 form a rolling bearing structure. This rolling bearing design cleverly enables relative rotation between the bearing inner ring 3 and the bearing outer ring 14. The rolling of the rotating balls 18 within the ball slots significantly reduces friction and energy loss during rotation. Furthermore, the twenty-eight rotating balls 18 enable the rolling bearing structure to withstand significant radial and axial loads, ensuring the smooth and reliable rotation of the rotating assembly 4. Compared to conventional bearings that require additional installation, this integrated rolling bearing structure not only reduces costs but also occupies less space, making the entire rotating mechanism more compact.

[0044] (3) Design of drive motor and transmission mechanism

[0045] A mounting bracket 15 is provided upwardly from the center portion of the bearing outer ring 14. The mounting bracket 15 is provided with screw holes, and a motor mounting slot 16 is formed in the mounting bracket 15. A drive motor 20 is mounted in the motor mounting slot 16 and is fixed to the bearing outer ring 14 by screws.

[0046] Mounting the drive motor 20 directly on the bearing outer ring 14 makes the entire rotating assembly 4 more compact, reduces the number of connections between components, and reduces the probability of failure. Furthermore, the design of the motor mounting slot 16 provides a stable mounting position for the drive motor 20, ensuring its stability during operation.

[0047] A circular boss 22 is formed downwardly in the center of the bearing inner ring 3. Connecting teeth 23 are located on the outer circumference of the boss 22, and a countersunk hole is formed on the boss surface of the boss 22. A rotating gear 21 is mounted on the output shaft of the drive motor 20 and secured to the output shaft by a screw. The rotating gear 21 meshes with the connecting teeth 23 on the bearing inner ring 3, forming a primary gear transmission mechanism. When the drive motor 20 is activated, it drives the rotating gear 21 to rotate. Due to the meshing connection between the rotating gear 21 and the connecting teeth 23 on the boss 22, the rotating gear 21 rotates along the inner ring 3 according to the principle of gear transmission. This primary gear transmission mechanism has a simple structure and high transmission efficiency, effectively transmitting the power of the drive motor 20 to the rotating assembly 4, achieving rotational motion. Furthermore, the gear transmission has high transmission precision, ensuring accurate and stable camera rotation, meeting the camera rotation angle and speed requirements of various application scenarios.

[0048] (4) Structural design of U-frame

[0049] The U-frame 7 is composed of an outer frame 8, an inner frame 9, and an upper connecting frame 10. The inner frame 9 is located on the inner side of the outer frame 8, and the upper connecting frame 10 is located at the upper end between the two inner frames 9. The outer frame 8, the inner frame 9, and the upper connecting frame 10 are integrally formed, and the drive motor 20 is mounted on the upper end of the upper connecting frame 10. The integrally formed design gives the U-frame 7 high strength and stability, capable of withstanding large external forces and vibrations, and ensuring the reliability of the rotating assembly 4 during operation. At the same time, this design reduces the connection gaps between components, improving the overall sealing and aesthetics.

[0050] (5) Design of camera mounting bracket

[0051] Actuation slot 11 is formed within the inner frame 9 and the upper connecting frame 10. A lower camera mounting bracket 24 is positioned within this slot 11. The side of the lower camera mounting bracket 24 is slotted to form a camera mounting slot 25. This design provides a stable mounting position for the camera, allowing for convenient installation within the slot 25 and adjustable mounting angles as needed. Furthermore, the design of the action slot 11 allows for rotation of the lower camera mounting bracket 24. A camera drive motor can be mounted on one side of the U-frame 7, with its output shaft connected to the lower camera mounting bracket 24. Driven by the motor, the lower camera mounting bracket 24 rotates, driving the camera's rotation and enabling the camera's all-around monitoring capabilities.

[0052] A side rotating portion 26 is fixed to one side of the lower camera mounting frame 24. The side rotating portion 26 is rotatably connected to the U-frame 7 via a bearing. This rotatable connection allows the lower camera mounting frame 24 to flexibly rotate within the U-frame 7, further improving the flexibility of the camera's rotation. A heat dissipation hole slot 28 is provided on the other side of the lower camera mounting frame 24. The design of the heat dissipation hole slot 28 can effectively dissipate the heat generated by the camera during operation, preventing the camera from being damaged due to overheating, and improving the reliability and service life of the camera. A lower wiring slot 27 is provided on the lower end surface of the lower camera mounting frame 24. The lower wiring slot 27 provides a channel for the camera's wiring layout, allowing the wiring to be neatly arranged, avoiding safety hazards caused by cluttered wiring, and also facilitating wiring installation and maintenance.

[0053] The working principle of this low-cost camera rotation mechanism is as follows:

[0054] After the drive motor 20 is started, its output shaft drives the rotating gear 21. Because the bearing inner ring 3 on the fixed assembly 1 is fixed to the building via the boom bracket 2, the bearing inner ring 3 and the bearing outer ring 14 are rotationally isolated by the rolling element assembly 19. Based on the principle of gear transmission, the rotating gear 21 meshes with the connecting teeth 23 on the exterior of the circular boss 22, causing the rotating gear 21 to rotate along the interior of the bearing inner ring 3. Simultaneously, the drive motor 20 is fixedly connected to the mounting bracket 15 on the bearing outer ring 14, which in turn is fixedly connected to the U-bracket 7, which is in turn fixedly connected to the closed top cover 5 and the outer closed connecting snap ring 6. Furthermore, the boom bracket 2 and the closed top cover 5 are rotationally sealed by the first sealing ring 12. This multi-layered fixing and sealing relationship enables the rotating assembly 4 to rotate stably around the fixed assembly 1. When the rotating assembly 4 rotates, the U-bracket 7 rotates with it, in turn driving the camera mounted in the camera mounting slot 25 to rotate, achieving the camera's omnidirectional monitoring function.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A low-cost camera rotation mechanism, comprising a fixing assembly (1) and a U-frame (7), characterized in that: The fixing assembly (1) includes a bearing inner ring (3), a closed top cover (5) is provided on the outer upper end of the bearing inner ring (3), an outer closed connecting clamp (6) is provided on the periphery of the closed top cover (5), a clamping groove is provided on the U frame (7), and the U frame (7) and the closed top cover (5) are fixed by the cooperation relationship between the outer closed connecting clamp (6) and the clamping groove; a bearing outer ring (14) is provided on the outer side of the outer edge of the bearing inner ring (3) along the inner side of the U frame (7), a fixing hole is provided on the bearing outer ring (14), and a screw hole is provided on the U frame (7), and the U frame (7) and the bearing outer ring (14) are fixed by screws. 4) fixed; a rolling element assembly (19) is provided between the bearing outer ring (14) and the bearing inner ring (3), the rolling element assembly (19) is composed of a bearing retainer (17) and a rotating ball (18), twenty-eight ball slots are provided on the bearing retainer (17), and a rotating ball (18) is placed on each slot, and the bearing inner ring (3), the bearing outer ring (14), the bearing retainer (17) and the twenty-eight rotating balls (18) constitute a set of rolling bearing structure; the closed top cover (5), the U frame (7) and the bearing outer ring (14) are fixed to form the basic frame of the rotating assembly (4).

2. The low-cost camera rotation mechanism according to claim 1, characterized in that: A mounting bracket (15) is provided upwardly at the center portion of the bearing outer ring (14), a screw hole is provided on the mounting bracket (15), and a motor mounting groove (16) is formed in the mounting bracket (15).

3. The low-cost camera rotation mechanism according to claim 2, characterized in that: A driving motor (20) is installed in the motor installation groove (16), and the driving motor (20) is fixed to the bearing outer ring (14) by screws.

4. The low-cost camera rotation mechanism according to claim 3, characterized in that: A circular boss (22) is provided downwardly at the center of the bearing inner ring (3), a connecting tooth portion (23) is provided on the outer circumference of the circular boss (22), and a countersunk hole is provided on the boss surface of the circular boss (22). A rotating gear (21) is matched with the output shaft of the driving motor (20), and the rotating gear (21) is fixed to the output shaft of the driving motor (20) by a screw. The rotating gear (21) is meshed and connected with the connecting tooth portion (23) on the bearing inner ring (3), forming a first-stage gear transmission mechanism.

5. The low-cost camera rotation mechanism according to claim 4, characterized in that: The fixing assembly (1) further comprises a boom bracket (2). The lower end surface of the boom bracket (2) is provided with a screw hole, and the bearing inner ring (3) is fixed to the boom bracket (2) by countersunk screws.

6. The low-cost camera rotation mechanism according to claim 5, characterized in that: A first annular groove is provided at the connection position between the boom bracket (2) and the closed top cover (5), and a first sealing ring (12) is embedded in the first annular groove, and the first sealing ring (12) performs a rotational seal. A second annular groove is provided at the connection position between the closed top cover (5) and the external closed connecting clamp (6), and a second sealing ring (13) is embedded in the second annular groove, and the second sealing ring (13) performs a static seal. The closed top cover (5), the U frame (7), the first sealing ring (12), the second sealing ring (13), the bearing outer ring (14), the drive motor (20) and the connecting tooth portion (23) are fixed to form a complete rotating assembly (4).

7. The low-cost camera rotation mechanism according to claim 1, characterized in that: The U frame (7) is composed of an outer frame (8), an inner frame (9) and an upper connecting frame (10), wherein the inner frame (9) is located on the inner side of the outer frame (8), and the upper connecting frame (10) is located at the upper end between the two inner frames (9). The outer frame (8), the inner frame (9) and the upper connecting frame (10) are integrally formed, and the driving motor (20) is installed at the upper end of the upper connecting frame (10).

8. The low-cost camera rotation mechanism according to claim 7, characterized in that: An action groove (11) is formed in the inner frame (9) and the upper connecting frame (10), a lower camera mounting frame (24) is provided in the action groove (11), and a camera mounting groove (25) is formed by slotting the side of the lower camera mounting frame (24).

9. The low-cost camera rotation mechanism according to claim 8, characterized in that: A side rotating portion (26) is fixed to one side of the lower camera mounting frame (24), and the side rotating portion (26) is rotatably connected to the U frame (7) via a bearing. A heat dissipation hole groove (28) is provided on the other side of the lower camera mounting frame (24), and a lower circuit slot (27) is provided on the lower end surface of the lower camera mounting frame (24).

10. A working method, implemented based on the low-cost camera rotation mechanism according to claim 6, characterized in that: The steps include: Step 1: The driving motor (20) drives the rotating gear (21) to rotate. Since the bearing inner ring (3) on the fixed component (1) is fixed to the building, and the bearing inner ring (3) and the bearing outer ring (14) are rotationally isolated by the rolling element component (19), the driving motor (20) and the rotating gear (21) are driven to rotate along the inner ring of the bearing (3) through the meshing connection relationship between the rotating gear (21) and the external connecting tooth portion (23) of the circular boss (22); Step 2: Due to the fixed relationship between the drive motor (20) and the mounting bracket (15) on the bearing outer ring (14), the fixed relationship between the bearing outer ring (14) and the U-frame (7), the fixed relationship between the U-frame (7) and the closed top cover (5) and the outer closed connecting clamp (6), and the rotary sealing relationship between the boom bracket (2) and the closed top cover (5), the rotating assembly (4) rotates around the fixed assembly (1); Step 3: The camera is installed in the camera installation slot (25), and the rotation of the U bracket (7) drives the camera to rotate.

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