Highly sealed panoramic drive underwater camera

Abstract

The present application relates to professional underwater camera technical field, specifically, it relates to a kind of highly sealed panoramic driving underwater camera.Sealing pipe is integrally formed with sealing shell, and is arranged on outlet port, and is communicated with outlet port, tensile nut is sealed with sealing pipe, winding column is fixed on the side of sealing pipe, a chamfered hole is arranged on tensile nut, chamfered hole corresponds with outlet port, limit slot is arranged around chamfered hole, limit slot and winding column are matched to form tensile structure.The above structure avoids the problem that circuit board soldering point falls off caused by transmission line axial pull by special tensile structure design, and has higher sealing property and pressure resistance, is suitable for use in various water depths, and magnetic coupling transmission is used for panoramic driving, which can be conveniently disassembled and assembled underwater, and the camera assembly is protected to the greatest extent, a third degree of freedom automatically adjustable structure that can be disassembled and assembled is designed, and the efficiency of panoramic driving is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of professional underwater camera technology, and more specifically, to a highly sealed panoramic drive underwater camera. Background Technology

[0002] The underwater camera system uses high-quality cables for video transmission and control, along with an auxiliary control equipment such as a control box and a cable-laying winch. It is primarily used in underwater fields such as oil and gas exploration, deep-sea exploration, underwater operations, and marine fisheries.

[0003] Since underwater operations are required, the sealing requirements are extremely high. From the perspective of the application environment, the sealing effect of underwater cameras directly determines their service life and has a significant impact on the video footage they capture. Underwater wireless signal propagation is highly unstable, making it suitable only for shallow water and simple, open environments. The primary method still relies on transmission cables. Traditional underwater cameras have a transmission cable outlet on their sealed housing, where waterproof material is used to directly press the cable in place. However, this waterproof structure cannot prevent axial tension on the cable, often causing solder joints on the internal circuit board to detach due to this tension. Another approach is to design a special connector, connecting it to the outlet first, then the output cable passes through the outlet, enters the connector, is secured, and then exits. While this improves tensile strength, the connector is not universal and requires customization. Special designs are needed for cameras of different shapes and sizes, and installation can easily damage the housing. Furthermore, the connector size is limited, restricting the use of small-sized connectors and limiting space for more complex fixing structures. Given the volatile underwater environment, where sudden high tensile forces are common, even with connectors, there is still a high probability of solder joint detachment. This sudden high axial tensile force is a major factor in damaging the cable outlet's seal.

[0004] Moreover, once the shell's seal is compromised, it becomes unusable and the entire shell needs to be replaced. Pulling off the weld points requires repair. Therefore, the current sealing structure for the outlet is difficult to cope with the complex conditions of underwater operations. Summary of the Invention

[0005] The purpose of this invention is to provide a highly sealed panoramic underwater camera to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a highly sealed panoramic underwater camera includes a sealed housing with a cable outlet. A lens assembly is disposed within the sealed housing, and a transmission line of the lens assembly is led out through the cable outlet. A sealing component for the transmission line is provided at the cable outlet. The camera is characterized by further including a sealing tube and a tension nut. The sealing tube is integrally formed with the sealed housing and is disposed at the cable outlet, communicating with it. The tension nut is screwed into the sealing tube in a sealed manner. A winding post is fixedly disposed on the side of the sealing tube. A chamfered hole is provided on the tension nut, corresponding to the cable outlet. A limiting groove is provided around the chamfered hole, and the limiting groove cooperates with the winding post to form a tensile structure.

[0007] This feature includes a sealing tube, a tension nut, and a winding post at the outlet. After the transmission line is led out from the outlet, it is first bent downwards along the limiting groove, and then wound around the winding post. If there is a single winding post, it is wound on that single winding post; if there are multiple winding posts, it is wound on several winding posts in combination. Finally, it is pulled back along the limiting groove to form a matching tension assembly. The chamfered hole protects the transmission line from damage due to its sharp edges.

[0008] Preferably, the sealing assembly includes a sealing gasket and a sealing plug. The sealing gasket is attached to the outlet, and the sealing plug is pressed on the sealing gasket. When the tension nut is screwed onto the sealing tube, the tension nut presses down on the sealing plug. The transmission line passes through the outlet, the sealing gasket, the sealing plug, and the tension nut in sequence.

[0009] This design incorporates a special sealing component to ensure a tight seal between the transmission line and the outlet. The tension nut provides pressure to tighten the sealing plug, providing better sealing and clamping force for the transmission line, further enhancing the sealing effect. In conjunction with the tension structure, it ensures that the transmission line will not shift axially due to tension, maximizing the protection of the circuit solder joints inside the sealed housing.

[0010] Preferably, a protective cover is also included. The sealed housing is fixedly installed inside the protective cover. An outlet is provided on the protective cover. A tensile groove is provided on the inner wall corresponding to the outlet. The tensile groove is engaged with a tensile ring. The inner hole size of the tensile ring is smaller than that of the outlet. The inner wall of the tensile ring is an arc-shaped surface. The transmission line passes through the tensile ring and the outlet in sequence.

[0011] This design employs a protective cover. Typically, protective covers cannot be molded in one piece due to assembly issues; they must be sealed and joined together in two halves. These often use a regular, symmetrical shape, such as a sphere, for greater structural stability. The inner diameter of the tension ring is designed to be within the outlet. Therefore, when the transmission line is pulled, only the tension ring bears the force, while the outlet of the protective cover experiences minimal stress, better ensuring the structural stability of the cover. If the transmission line pull causes direct stress on the outlet, it could easily damage or even open the protective cover's structure. Thus, the inner diameter of the tension ring is designed to be within the outlet, protecting the protective cover's structure. The inner wall of the tension ring is curved to protect the transmission line from cuts. Since a soft plug is still pressed into the outlet during actual use to cooperate with the tension structure, forming a secondary tension structure, it can still function normally even underwater when there is no traction line and the transmission line is used directly as the traction line. There is no risk of damaging the structure or affecting the circuit solder joints within the sealed housing, providing a high level of encapsulation and protection.

[0012] Preferably, the system also includes a buoyancy support, which comprises a pitch coupling frame and a pitch coupling motor. The pitch coupling motor is fixedly installed inside a sealed housing. The sealed housing has symmetrically protruding coupling chambers on both sides. The pitch coupling frame has a U-shaped opening, and coupling cavities are provided on the left and right inner walls of the U-shaped opening. An active magnet is fixedly installed on the output shaft of the pitch coupling motor. The active magnet is located in one of the coupling chambers. A driven magnet is fixedly installed in the coupling cavity. The coupling chamber and the coupling cavity are sleeved together to form a pitch coupling motion.

[0013] This setup includes a pitch coupling frame and a pitch coupling motor. This coupled rotation structure ensures rotational engagement under sealed conditions. This relatively independent sealed design allows the camera of this invention to be assembled and disassembled underwater according to actual needs, without requiring additional sealing designs. This meets various underwater operational requirements. The support frame allows for fixed-point observation in the pitch direction. If manual handheld operation is required, the support frame can be removed. This quick-release structure is not the primary protected structure of this invention and is therefore described in the specification. Typically, a two-half splicing design is used, with the two halves connected by bolts and nuts, allowing for manual quick assembly and disassembly. Since the specific structure of the coupling transmission is readily available in existing technology, this invention will not elaborate on the specific structure and coupling principle.

[0014] Preferably, the buoyancy support also includes a horizontal coupling motor and a counterweight adjustment frame. The horizontal coupling motor is fixedly installed at the bottom of the buoyancy support. An active magnet is fixedly installed on the output shaft of the horizontal coupling motor. A fixed shaft is provided on the counterweight adjustment frame. A driven magnet is fixedly installed on the fixed shaft. The driven magnet is rotatably connected to the buoyancy support and is sleeved around the active magnet to form a horizontal magnetic coupling motion cooperation.

[0015] This setup also employs magnetic coupling rotation in the horizontal rotation structure. Utilizing the characteristic that magnetic coupling rotation assembly does not require additional sealing design, it can achieve horizontal rotation in a sealed state. Combined with pitch coupling, it can achieve two-degree-of-freedom rotation adjustment, thereby achieving panoramic drive function in a sealed state. Explaining from the coupling principle, the coupling motor and its active magnet are generally pre-sealed in a drive box. During assembly, it is only necessary to attach the driven magnet from the sealed drive box to the outside of the active magnet. Therefore, it can be directly disassembled and assembled in a sealed state, unaffected by the underwater environment. While achieving panoramic drive, it can also adapt to various auxiliary operation requirements.

[0016] Preferably, the counterweight adjustment frame includes a counterweight block and an automatic adjustment frame. The automatic adjustment frame is a set of hinged buckles that are arranged vertically and hinged to each other. The upper hinged buckle is fixedly connected to a fixed shaft, and the counterweight block is connected to the lower hinged buckle.

[0017] This setup needs explanation. During underwater operations, different cameras have different weights; some have buoyancy greater than the camera's weight, while others have buoyancy less than the camera's weight. In this setup, the buoyancy bracket, combined with the camera, still has an overall weight less than the buoyancy. Therefore, a counterweight is needed. The counterweight helps the entire setup sink to the bottom while keeping the camera afloat and stationary in a specific position. This is because the seabed is often not flat. After the counterweight sinks and contacts the bottom, the buoyancy bracket and camera rise due to the buoyancy. Thanks to the hinge, the counterweight can be adjusted using buoyancy regardless of the angle of contact between the counterweight and the bottom, ensuring the camera always aligns with the direction of buoyancy and maintains a stable position. Therefore, the automatic adjustment bracket actually provides a third degree of freedom for automatic adjustment, allowing for faster panoramic drive adjustment of the horizontal and vertical two-degrees of freedom.

[0018] It is important to emphasize that in the horizontal coupling, due to the friction caused by the counterweight sinking to the bottom, the horizontal coupling motor cannot drive the counterweight adjustment frame to rotate. Therefore, the pitch coupling frame will rotate horizontally due to the relative action. The pitch coupling structure works similarly. Although the pitch coupling motor is located inside the sealed housing as the active drive, it also cannot drive the pitch coupling frame. The camera rotates in pitch under the reaction force. The reason for this design is mainly due to the underwater assembly and disassembly environment. If the pitch coupling motor were also external, three power cables would be required for underwater use, which is too complicated. By placing it inside the sealed housing, at most two power cables are needed for assembly and disassembly, greatly reducing the risk of wire entanglement.

[0019] Preferably, the buoyancy support also includes a horizontal coupling motor and a horizontal coupling disk. The horizontal coupling motor is fixedly installed at the bottom of the buoyancy support. An active magnet is fixedly installed on the output shaft of the horizontal coupling motor. A driven magnet is fixedly installed inside the horizontal coupling disk. The driven magnet is rotatably connected to the buoyancy support and is sleeved around the active magnet to form a horizontal magnetic coupling motion cooperation.

[0020] This setup directly connects the horizontal coupling disc to the bottom of the buoyancy support in a rotatable manner. With this structure, as long as the horizontal coupling disc is added to ensure that the overall weight is greater than the buoyancy, it can sink to the bottom and work. It has a high degree of integration and is suitable for situations where the bottom is flat. The reason for this highly integrated structure is that the power cable of the horizontal coupling motor can be completely inserted into the sealed housing through the coupling cavity, sharing the power cable with the pitch coupling motor for single-line traction, thus completely avoiding the problem of cable winding, and there is no problem of axial pull.

[0021] Preferably, the device also includes an auxiliary adjustment frame and a counterweight plate. The auxiliary adjustment frame is fixedly connected to the bottom of the horizontal coupling plate. The auxiliary adjustment frame is a set of hinged buckles that are arranged vertically and hinged to each other. The upper hinged buckle is fixedly connected to the bottom of the horizontal coupling plate, and the counterweight plate is connected to the lower hinged buckle.

[0022] This setup also includes an auxiliary adjustment frame and a counterweight plate, forming a third degree of freedom adjustment. For highly integrated single-line traction structures, if the overall weight is still less than the buoyancy, the counterweight plate sinks to the bottom, and the auxiliary adjustment frame, through its buoyancy adjustment function, can still ensure that the camera remains in the buoyancy direction, allowing for faster panoramic drive adjustment. Of course, with the structure of the auxiliary adjustment frame and counterweight plate, even if the overall weight is still less than the buoyancy, the camera can remain stably stationary in the same buoyancy direction regardless of whether the bottom is flat. Horizontal rotation from this position is horizontal, effectively reducing the adjustment steps. Otherwise, if the bottom is sloped, the horizontal coupling plate will be angled against the bottom, and the horizontal rotation will be parallel to the bottom plane. Therefore, when directional shooting is required, the pitch and rotation structures need to work continuously to complete shooting in different directions, requiring a much higher level of adjustment complexity, making it impossible to quickly complete orientation using only two degrees of freedom.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: Through a special tensile structure design, the problem of circuit board solder joints falling off due to axial pulling of the transmission line is completely avoided. Moreover, the tensile sealing structure has higher sealing and pressure resistance, making it suitable for use in various water depths.

[0024] The panoramic drive uses magnetic coupling transmission, which can be freely disassembled and assembled underwater. While ensuring sealing, it is more convenient to use and protects the camera assembly to the greatest extent. Not only is it easy to disassemble and assemble, but it also reduces maintenance costs to some extent. As long as the camera assembly has a long service life, all parts can be replaced and disassembled, which greatly improves the product's service life.

[0025] The design incorporates a detachable, automatically adjustable third degree of freedom structure to maintain camera position stability, making it suitable for various underwater environments and significantly improving the efficiency of panoramic driving.

[0026] It should be emphasized that the fixed connections mentioned in this invention are not non-removable in the traditional sense, but rather removable fixed connections, such as reversible fixed connections with bolts and nuts, which can be freely selected according to actual usage requirements. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the underwater camera structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the underwater camera structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the buoyancy support of the present invention; Figure 4 This is a schematic diagram of the structure of the buoyancy support II of the present invention; Figure 5 This is a schematic diagram of the buoyancy support three of the present invention; Figure 6 This is a structural schematic diagram of the buoyancy support of the present invention in three cross-sectional views. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] refer to Figure 1-2As can be seen, the present invention provides a highly sealed panoramic driving underwater camera, including a sealed housing 1, a cable outlet 11 on the sealed housing 1, a lens assembly 12 on the sealed housing 1, the transmission line of the lens assembly 12 passing through the cable outlet 11 and led out, the cable outlet 11 is provided with a sealing assembly for the transmission line, including a sealing tube 13 and a tension nut 2, the sealing tube 13 is integrally formed with the sealed housing 1 and is provided on the cable outlet 11 and communicates with the cable outlet 11, the tension nut 2 is sealed and screwed to the sealing tube 13, a winding post 14 is fixedly provided on the side of the sealing tube 13, a chamfered hole 21 is provided on the tension nut 2, the chamfered hole 21 corresponds to the cable outlet 11, a limiting groove 22 is provided around the chamfered hole 21, the limiting groove 22 and the winding post 14 cooperate to form a tensile structure.

[0030] The sealing assembly includes a sealing gasket 3 and a sealing plug 31. The sealing gasket 3 is attached to the outlet 11, and the sealing plug 31 is pressed against the sealing gasket 3. When the tension nut 2 is screwed onto the sealing tube 13, the tension nut 2 presses down on the sealing plug 31. The transmission line passes through the outlet 11, the sealing gasket 3, the sealing plug 31, and the tension nut 2 in sequence. In this embodiment, the sealing plug 31 is inverted conical, which makes it easier to press into the hole when the tension nut 2 is pressed down, ensuring a sealing effect.

[0031] It also includes a protective cover 4, and a sealing housing 1 is fixedly installed inside the protective cover 4. The protective cover 4 is provided with an outlet 41, and a tensile groove 42 is provided on the inner wall corresponding to the outlet 41. The tensile groove 42 is engaged with a tensile ring 43. The inner hole size of the tensile ring 43 is smaller than that of the outlet 41, so that the tensile ring 43 and the wall thickness of the outlet 41 can form a sealed cavity. In this embodiment, a sealing filler is also added in this sealed cavity during actual use. The inner hole wall is an arc-shaped surface, and the transmission line passes through the tensile ring 43 and the outlet 41 in sequence.

[0032] refer to Figure 3 It is known that the buoyancy support includes a pitch coupling frame 5 and a pitch coupling motor 51. The pitch coupling motor 51 is fixedly installed inside the sealed housing 1. The sealed housing 1 has protruding and symmetrical coupling chambers 15 on both sides. The pitch coupling frame 5 has a U-shaped opening. The left and right inner walls of the U-shaped opening are provided with coupling cavities 52. An active magnet 53 is fixedly installed on the output shaft of the pitch coupling motor 51. The active magnet 53 is located in one of the coupling chambers 15. A driven magnet 54 is fixedly installed in the coupling cavity 52. ​​The coupling chamber 15 and the coupling cavity 52 are sleeved together to form a pitch coupling motion cooperation.

[0033] The buoyancy support also includes a horizontal coupling motor 6 and a counterweight adjustment frame 61. The horizontal coupling motor 6 is fixedly installed at the bottom of the buoyancy support. An active magnet 53 is fixedly installed on the output shaft of the horizontal coupling motor 6. A fixed shaft 611 is provided on the counterweight adjustment frame 61. A driven magnet 54 is fixedly installed on the fixed shaft 611. The driven magnet 54 is rotatably connected to the buoyancy support and is sleeved around the active magnet 53 to form a horizontal magnetic coupling motion cooperation.

[0034] The counterweight adjustment frame 61 includes a counterweight block (not marked in the figure) and an automatic adjustment frame 7. The automatic adjustment frame 7 is a set of hinged buckles arranged vertically and hinged to each other. The upper hinged buckle 71 is fixedly connected to the fixed shaft 611, and the counterweight block is connected to the lower hinged buckle 72. In actual use, there are many choices for the counterweight block in this embodiment, which can be divided into two main categories. One category is rope-suspended counterweight, in which the counterweight block is hung on the lower hinged buckle 72 by a rigid rope. The other category is using a hinged counterweight block, which is hinged to the lower hinged buckle 72. It should be noted that although the hinge rotation direction is only one direction, during the sinking process of this product, if the bottom is not flat, the upper part of the counterweight block is affected by positive buoyancy when it contacts the bottom. Therefore, under the adjustment of the buoyancy torque, the hinge part can automatically adjust to keep the hinge rotation direction consistent with the buoyancy. It can also be adjusted by the horizontal coupling motor 6 to sink to the bottom.

[0035] refer to Figure 4 As can be seen, this is a special embodiment. In actual use, this embodiment adopts a structure in which both the pitch coupling motor 51 and the horizontal coupling motor 6 are externally mounted. That is, the pitch coupling motor 51 is also externally mounted and installed in the coupling cavity 52. ​​The driven magnet 54 is installed in the coupling chamber 15 of the sealed shell 1 and driven. Thus, both the pitch coupling motor 51 and the horizontal coupling motor 6 can be used as externally detachable components. This buoyancy bracket is mainly suitable for underwater retrieval. The camera has a long service life. However, since each motor requires a power cord, this structure has at least three leads, so it is only used in special environments.

[0036] refer to Figure 5-6 It is understood that the buoyancy support also includes a horizontal coupling motor 6 and a horizontal coupling disk 8. The horizontal coupling motor 6 is fixedly installed at the bottom of the buoyancy support. An active magnet 63 is fixedly installed on the output shaft of the horizontal coupling motor 6. A driven magnet 54 is fixedly installed inside the horizontal coupling disk 8. The driven magnet 54 is rotatably connected to the buoyancy support and is sleeved around the active magnet 53 to form a horizontal magnetic coupling motion cooperation. In this embodiment, the positions of the active magnet 53 and the driven magnet 54 can be interchanged. According to the principle of coupling motion, the active magnet 53 can be selected to be inside and the driven magnet 54 to be outside, or vice versa. However, in general, the structure with the active magnet 53 inside and the driven magnet 54 outside is selected.

[0037] It also includes an auxiliary adjustment frame and a counterweight plate 9. The auxiliary adjustment frame is fixedly connected to the bottom of the horizontal coupling plate 8. The auxiliary adjustment frame is a set of hinged buckles that are set up vertically and hinged to each other. The upper hinged buckle 71 is fixedly connected to the bottom of the horizontal coupling plate 8, and the counterweight plate 9 is connected to the lower hinged buckle 72. In this embodiment, the counterweight plate 9 and the lower hinged buckle 72 are connected by hinges.

[0038] Working principle of this embodiment: Principle 1: When using a plumb bob as a counterweight, Figure 3 or Figure 4 With a buoyancy support, after sinking to the bottom, the lead weight will lock and rotate horizontally. Under the action of buoyancy, the rotation direction of the lower hinge buckle 72 is consistent with the direction of buoyancy, keeping the upper part always vertical and upward, so that the camera can maintain a good posture. For horizontal adjustment, the horizontal coupling motor 6 is driven to rotate. Since the lower part is locked, the pitch coupling frame 5 reverses and rotates horizontally. The pitch angle is adjusted by the pitch coupling motor 51. If the pitch coupling motor 51 is on the pitch coupling frame 5, it directly drives the camera to pitch. If the pitch coupling motor 51 is in the sealed housing, since the pitch coupling frame 5 is locked, the camera reverses and adjusts the pitch angle, thus forming a three-degree-of-freedom adjustment.

[0039] Principle 2: Adopt an integrated structure, such as... Figure 5-6 Without the counterweight plate 9, the whole thing sinks directly to the bottom, and the horizontal coupling plate 8 contacts the bottom. The horizontal coupling motor 6 cannot drive the horizontal coupling plate 8, so the overall pitch coupling frame 5 reverses to adjust the horizontal position. The pitch adjustment is the same as the principle described above. When the bottom is not flat, the counterweight plate 9 and the auxiliary adjustment frame are added. The third degree of freedom adjustment effect in principle 1 is achieved through the double hinge structure, thus completing the three-degree-of-freedom adjustment.

[0040] It should be noted that the disassembly and assembly structure is for the pitch coupling frame 5 and its related accessories, while the sealed housing 1 and the protective cover 4 are used as a single unit, serving as the core.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sealed panoramic underwater camera, comprising a sealed housing, a cable outlet on the sealed housing, a lens assembly disposed within the sealed housing, a transmission line of the lens assembly passing through the cable outlet, and a sealing assembly for the transmission line disposed on the cable outlet, characterized in that: It also includes a sealing tube and a tension nut. The sealing tube is integrally formed with the sealing shell and is set on the outlet, communicating with the outlet. The tension nut is screwed and sealed to the sealing tube. A winding post is fixed on the side of the sealing tube. A chamfered hole is provided on the tension nut, corresponding to the outlet. A limiting groove is provided around the chamfered hole. The limiting groove and the winding post cooperate to form a tensile structure. The sealing assembly includes a sealing gasket and a sealing plug. The sealing gasket is attached to the outlet, and the sealing plug is pressed on the sealing gasket. When the tension nut is screwed to the sealing tube, the tension nut presses down on the sealing plug. The transmission line passes through the outlet, sealing gasket, sealing plug and tension nut in sequence. It also includes a protective cover. The sealing shell is fixedly set in the protective cover. The protective cover has an outlet. A tensile groove is provided on the inner wall of the outlet. The tensile groove is engaged with a tensile ring. The inner hole size of the tensile ring is smaller than that of the outlet. The inner hole wall is arc-shaped. The transmission line passes through the tensile ring and outlet in sequence.

2. The highly sealed panoramic driving underwater camera according to claim 1, characterized in that: It also includes a buoyancy support, which includes a pitch coupling frame and a pitch coupling motor. The pitch coupling motor is fixedly installed inside a sealed housing. The sealed housing has raised and symmetrical coupling chambers on both sides. The pitch coupling frame has a U-shaped opening, and the left and right inner walls of the U-shaped opening are provided with coupling cavities. An active magnet is fixedly installed on the output shaft of the pitch coupling motor. The active magnet is located in one of the coupling chambers. A driven magnet is fixedly installed in the coupling cavity. The coupling chamber and the coupling cavity are sleeved together to form a pitch coupling motion.

3. The highly sealed panoramic driving underwater camera according to claim 2, characterized in that: The buoyancy support also includes a horizontal coupling motor and a counterweight adjustment frame. The horizontal coupling motor is fixedly installed at the bottom of the buoyancy support. An active magnet is fixedly installed on the output shaft of the horizontal coupling motor. A fixed shaft is provided on the counterweight adjustment frame. A driven magnet is fixedly installed on the fixed shaft. The driven magnet is rotatably connected to the buoyancy support and is sleeved around the active magnet to form a horizontal magnetic coupling motion cooperation.

4. The highly sealed panoramic driving underwater camera according to claim 3, characterized in that: The counterweight adjustment frame includes a counterweight block and an automatic adjustment frame. The automatic adjustment frame is a set of hinged buckles that are arranged vertically and hinged to each other. The upper hinged buckle is fixedly connected to a fixed shaft, and the counterweight block is connected to the lower hinged buckle.

5. The highly sealed panoramic driving underwater camera according to claim 2, characterized in that: The buoyancy support also includes a horizontal coupling motor and a horizontal coupling disk. The horizontal coupling motor is fixedly installed at the bottom of the buoyancy support. An active magnet is fixedly installed on the output shaft of the horizontal coupling motor. A driven magnet is fixedly installed inside the horizontal coupling disk. The driven magnet is rotatably connected to the buoyancy support and is sleeved around the active magnet to form a horizontal magnetic coupling motion cooperation.

6. The highly sealed panoramic driving underwater camera according to claim 5, characterized in that: It also includes an auxiliary adjustment frame and a counterweight plate. The auxiliary adjustment frame is fixedly connected to the bottom of the horizontal coupling plate. The auxiliary adjustment frame is a set of hinged buckles that are set up vertically and hinged to each other. The upper hinged buckle is fixedly connected to the bottom of the horizontal coupling plate, and the counterweight plate is connected to the lower hinged buckle.

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