Multi-degree-of-freedom buffer and shock absorption underwater telescopic shooting device
Patent Information
- Application Number
- CN202522695032.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Traditional underwater video acquisition devices have long support rods, which are inconvenient to operate, take up a lot of space, and are prone to shaking and damage under the impact of waves, affecting the shooting effect and safety.
A multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device was designed. It adopts a fixed frame, a telescopic mechanism and a buffered and shock-absorbing mechanism. Flexible connection is achieved through a hinge seat and a limiting ring. The telescopic movement is achieved by a telescopic motor and a synchronous belt. A buffer sleeve and a spring are set on the limiting ring to absorb the impact of sea waves.
It effectively reduces the impact of waves on the shooting equipment, protects the equipment from damage, ensures shooting results and ease of operation, and reduces manufacturing costs.
Smart Images
Figure CN224932492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an underwater video acquisition device, and more particularly to a multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device. Background Technology
[0002] When conducting activities such as seabed resource exploration, benthic aquaculture, and seabed environmental monitoring, it is often necessary to use underwater video acquisition devices to collect underwater video footage in real time. Researchers or intelligent programs then make judgments based on the real-time seabed footage to guide further operations.
[0003] Traditional underwater video acquisition devices are relatively simple in structure, mostly consisting of a camera mounted at the bottom of a long pole. In use, the pole is lowered below the sea surface to capture images of the seabed. However, this type of video acquisition device has several problems: First, to ensure the camera can sink to the seabed, a relatively long support pole is required, making operation cumbersome. Second, when not in operation, the long support pole occupies a significant amount of space. Third, when operating in the ocean, the relatively long support pole is subject to the impact of waves, causing the camera to shake violently and significantly, affecting the recording quality. Moreover, since the support pole is usually fixed to the hull, it may break under the force of waves, resulting in economic losses.
[0004] Therefore, a method or apparatus is needed to solve the above problems. Utility Model Content
[0005] This invention addresses the aforementioned shortcomings of existing technologies by proposing a multi-degree-of-freedom buffer and shock-absorbing underwater telescopic shooting device that features a simple structure, ingenious design, reasonable layout, large effective range, and the ability to effectively reduce the impact of ocean waves, thereby ensuring the smooth progress of filming.
[0006] The technical solution of this utility model is: a multi-degree-of-freedom buffer and shock-absorbing underwater telescopic shooting device, characterized in that: the device includes a fixed frame 1, a fixed frame 2 is provided at the bottom of the fixed frame 1, a first screw 3 is threadedly connected to the outer plate of the fixed frame 2, a handwheel 4 is provided at one end of the first screw 3 outside the fixed frame 2, and a rubber clamp 5 is provided at the other end of the first screw 3 inside the fixed frame 2; the top of the fixed frame 1 is movably connected to the top of the telescopic mechanism 7 through a hinge seat 6; and a camera 8 is connected to the bottom of the telescopic mechanism 7 through a gimbal. A limiting ring 9 is also provided on the fixed frame 1. The telescopic mechanism 7 is located inside the limiting ring 9. At least three buffer and shock-absorbing mechanisms are provided on the side wall of the limiting ring 9, which are evenly distributed in the circumferential direction. The buffer and shock-absorbing mechanism includes a buffer sleeve 10 provided on the outer wall of the limiting ring 9. A buffer rod 11 is movably connected inside the buffer sleeve 10. A pad 12 is provided at one end of the buffer rod 11 inside the limiting ring 9. At the same time, a spring 13 is also sleeved on the buffer rod 11. The spring 13 is located between the inner wall of the limiting ring 9 and the pad 12. The pads 12 in all the buffer and shock-absorbing mechanisms are in contact with the outer wall of the telescopic mechanism 7.
[0007] The telescopic mechanism 7 includes a first cylindrical body 14, a telescopic motor 15 is provided at the top of the first cylindrical body 14, a second screw 16 is connected to the output end of the telescopic motor 15, and a second cylindrical body 17, a third cylindrical body 18 and a fourth cylindrical body 19 are provided inside the first cylindrical body 14 and are nested together. The second screw 16 is threadedly connected to the fourth cylindrical body 19. The second cylinder 17 has an upper synchronous pulley 20 at its top end, and the fourth cylinder 19 has a lower synchronous pulley 21 at its bottom end. The telescopic mechanism 7 is also equipped with a synchronous belt 22. One end of the synchronous belt 22 is fixedly connected to the top of the first cylinder 14, and the other end is fixedly connected to the bottom of the inner wall of the first cylinder 14. The synchronous belt 22 is also wound around the upper synchronous pulley 20 and the lower synchronous pulley 21 respectively. The top of the inner wall of the third cylinder 18 is fixedly connected to the synchronous belt 22 through a connecting block 23. The outer wall of the third cylinder 18 is slidably connected to the inner wall of the second cylinder 17, and the outer wall of the second cylinder 17 is slidably connected to the inner wall of the first cylinder 14. The camera 8 is connected to the bottom end of the third cylinder 18 via a gimbal.
[0008] There are four buffer and shock absorption mechanisms, and these four buffer and shock absorption mechanisms are evenly distributed in the circumferential direction of the limiting ring 9.
[0009] The buffer rod 11 is distributed radially along the limiting ring 9.
[0010] The limiting ring 9 is assembled from two semi-circular components.
[0011] Compared with the prior art, this utility model has the following advantages: This multi-degree-of-freedom buffer and shock-absorbing underwater telescopic filming device features a simple structure, ingenious design, and reasonable layout. Addressing the problems inherent in traditional underwater filming devices, it employs a unique structure. First, a specially designed frame connects the telescopic mechanism to the hull, and this flexible connection (hinge seat and limiting ring) effectively absorbs the impact of waves on the telescopic mechanism, protecting the filming device from damage. Second, its telescopic mechanism incorporates two layers of telescopic sleeve structures, with the innermost sleeve moving via a screw rotation. A synchronous belt and its matching pulleys synchronize the extension and retraction of the two sleeve structures. The extended and retracted states have a relatively large length, meeting the practical needs of deep-water filming (extended state) without occupying excessive space (retracted state). Furthermore, the device is simple to manufacture and inexpensive. Therefore, it possesses numerous advantages, making it particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0013] Figure 2 This is a top view of the limiting ring portion in an embodiment of this utility model.
[0014] Figure 3 This is a structural schematic diagram of the telescopic mechanism in an embodiment of this utility model. Detailed Implementation
[0015] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 The image shows a multi-degree-of-freedom, shock-absorbing, underwater telescopic shooting device. It includes a base frame 1, a fixed frame 2 at the bottom of the base frame 1, a first screw 3 threadedly connected to the outer plate of the fixed frame 2, a handwheel 4 at one end of the first screw 3 outside the fixed frame 2, and a rubber clamp 5 at the other end inside the fixed frame 2. The top of the base frame 1 is movably connected to the top of a telescopic mechanism 7 via a hinge seat 6, and a camera 8 is connected to the bottom of the telescopic mechanism 7 via a gimbal. A limiting ring 9 is also provided on the fixed frame 1. The telescopic mechanism 7 is located inside the limiting ring 9. At least three buffer and shock-absorbing mechanisms are provided on the side wall of the limiting ring 9, which are evenly distributed in the circumferential direction. The buffer and shock-absorbing mechanism includes a buffer sleeve 10 provided on the outer wall of the limiting ring 9. A buffer rod 11 is movably connected inside the buffer sleeve 10. A pad 12 is provided at one end of the buffer rod 11 inside the limiting ring 9. At the same time, a spring 13 is also sleeved on the buffer rod 11. The spring 13 is located between the inner wall of the limiting ring 9 and the pad 12. The pads 12 in all the buffer and shock-absorbing mechanisms are in contact with the outer wall of the telescopic mechanism 7.
[0016] The telescopic mechanism 7 includes a first cylindrical body 14, a telescopic motor 15 is provided at the top of the first cylindrical body 14, a second screw 16 is connected to the output end of the telescopic motor 15, and a second cylindrical body 17, a third cylindrical body 18 and a fourth cylindrical body 19 are provided inside the first cylindrical body 14 and are nested together. The second screw 16 is threadedly connected to the fourth cylindrical body 19. The second cylinder 17 has an upper synchronous pulley 20 at its top end, and the fourth cylinder 19 has a lower synchronous pulley 21 at its bottom end. The telescopic mechanism 7 is also equipped with a synchronous belt 22. One end of the synchronous belt 22 is fixedly connected to the top of the first cylinder 14, and the other end is fixedly connected to the bottom of the inner wall of the first cylinder 14. The synchronous belt 22 is also wound around the upper synchronous pulley 20 and the lower synchronous pulley 21 respectively. The top of the inner wall of the third cylinder 18 is fixedly connected to the synchronous belt 22 through a connecting block 23. The outer wall of the third cylinder 18 is slidably connected to the inner wall of the second cylinder 17, and the outer wall of the second cylinder 17 is slidably connected to the inner wall of the first cylinder 14. The camera 8 is connected to the bottom end of the third cylinder 18 via a gimbal.
[0017] There are four buffer and shock absorption mechanisms, and these four buffer and shock absorption mechanisms are evenly distributed in the circumferential direction of the limiting ring 9.
[0018] The buffer rod 11 is distributed radially along the limiting ring 9.
[0019] The limiting ring 9 is assembled from two semi-circular components.
[0020] The working process of the multi-degree-of-freedom buffer and shock-absorbing underwater telescopic shooting device of this utility model embodiment is as follows: First, the device is connected to the hull using the fixed frame 2, specifically, the fixed frame 2 is clamped on the side of the hull. The handwheel 4 is held and the first screw 3 is rotated, which drives the rubber clamp 5 to move towards the inside of the side of the hull until the rubber clamp 5 is pressed against the side of the hull. At this time, the device is fixedly connected to the hull. When it is necessary to use camera 8 to capture images of the seabed, the control system sends a signal to telescopic mechanism 7. The telescopic mechanism moves, and its overall length increases, which in turn drives camera 8, which is connected to its bottom, to descend until camera 8 reaches the seabed. Then, the gimbal drives camera 8 to rotate, and camera 8 works to capture images of the seabed in that area. The images are then transmitted back to the computer (or other terminal) set up on the ship for staff to view.
[0021] Since the top of the telescopic mechanism 7 is connected to the fixed frame 1 through the hinge seat 6, the telescopic mechanism 7 can move in a certain range of spherical direction relative to the hinge seat 6. In this way, when the telescopic mechanism is subjected to the lateral thrust from the waves, it will swing in the direction of the force, thereby preventing the telescopic mechanism 7 from being damaged. During the swinging process of the telescopic mechanism 7, a limit ring 9 is set on its exterior, and multiple buffer and shock absorption mechanisms set in the limit ring 9 restrict the telescopic mechanism 7. That is, when the telescopic mechanism 7 swings, the buffer rod 11 in its direction of movement moves to the outside of the limit ring 9, and the spring 13 on it is compressed. Meanwhile, the buffer rod 11 in the opposite direction of movement moves towards the center of the limit ring 9, and the spring 13 on it is extended. This structure can limit the swinging action of the telescopic mechanism 7 to a certain range. At the same time, the spring 13 can also absorb some kinetic energy and play a role in protecting the telescopic mechanism 7. After the external force is removed, the telescopic mechanism 7 can also return to its original position under the action of all the buffer rods 11 (i.e., the telescopic mechanism 7 and the limit ring 9 are coaxial). The operation process of the telescopic mechanism 7 is as follows: In the initial state, the second cylinder 17 and the third cylinder 18 are both in the retracted state. When the camera 8 needs to move to the seabed, the control system sends a signal to the telescopic motor 15. The telescopic motor 15 drives the second screw 16 to rotate, which in turn drives the fourth cylinder 19 to move along the length direction of the second screw 16. The fourth cylinder 19 (and the lower synchronous pulley 21) extends outward relative to the first cylinder 14. Since both ends of the synchronous belt 22 are fixed, the displacement of the lower synchronous pulley 21 will drive the synchronous belt 22 to move in space. First, the third cylinder 18, which is fixedly connected to the synchronous belt 22, will move accordingly. Second, the synchronous belt 22 will also "scoop" the upper synchronous pulley 20 downward, which will drive the second cylinder 17, which is fixedly connected to the upper synchronous pulley 20, to move downward. In other words, the movement of the fourth cylinder 19 will drive the second cylinder 17 and the third cylinder 18 to move downward relative to the first cylinder 14 at the same time, thereby realizing the extension action of the telescopic mechanism 7. When the telescopic mechanism 7 needs to be retracted, simply control the telescopic motor 15 to drive the second screw 16 to rotate in the opposite direction, so that the above actions can be reversed, thereby retracting the second cylinder 17 and the third cylinder 18 that are in the extended state.
Claims
1. A multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device, characterized in that: The device includes a fixed frame (1), a fixed frame (2) at the bottom of the fixed frame (1), a first screw (3) threadedly connected to the outer plate of the fixed frame (2), a handwheel (4) at one end of the first screw (3) outside the fixed frame (2), and a rubber clamp (5) at one end inside the fixed frame (2). The top of the fixed frame (1) is movably connected to the top of the telescopic mechanism (7) through a hinge seat (6), and a camera (8) is connected to the bottom of the telescopic mechanism (7) through a gimbal. A limiting ring (9) is also provided on the fixed frame (1). The telescopic mechanism (7) is located inside the limiting ring (9). At least three buffer and shock-absorbing mechanisms are provided on the side wall of the limiting ring (9) and are evenly distributed in the circumferential direction. The buffer and shock-absorbing mechanism includes a buffer sleeve (10) provided on the outer wall of the limiting ring (9). A buffer rod (11) is movably connected inside the buffer sleeve (10). A pad (12) is provided at one end of the buffer rod (11) inside the limiting ring (9). At the same time, a spring (13) is also sleeved on the buffer rod (11). The spring (13) is located between the inner wall of the limiting ring (9) and the pad (12). The pads (12) in all the buffer and shock-absorbing mechanisms are in contact with the outer wall of the telescopic mechanism (7).
2. The multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device according to claim 1, characterized in that: The telescopic mechanism (7) includes a first cylinder (14), a telescopic motor (15) is provided at the top of the first cylinder (14), a second screw (16) is connected to the output end of the telescopic motor (15), and a second cylinder (17), a third cylinder (18) and a fourth cylinder (19) are provided inside the first cylinder (14) and are nested together. The second screw (16) is threadedly connected inside the fourth cylinder (19). The top end of the second cylinder (17) is provided with an upper synchronous pulley (20), and the bottom end of the fourth cylinder (19) is provided with a lower synchronous pulley (21). The telescopic mechanism (7) is also equipped with a synchronous belt (22). One end of the synchronous belt (22) is fixedly connected to the top of the first cylinder (14), and the other end is fixedly connected to the bottom of the inner wall of the first cylinder (14). At the same time, the synchronous belt (22) is also wound around the upper synchronous pulley (20) and the lower synchronous pulley (21). The top of the inner wall of the third cylinder (18) is fixedly connected to the synchronous belt (22) through a connecting block (23). The outer wall of the third cylinder (18) is slidably connected to the inner wall of the second cylinder (17), and the outer wall of the second cylinder (17) is slidably connected to the inner wall of the first cylinder (14). The camera (8) is connected to the bottom end of the third cylinder (18) through a gimbal.
3. The multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device according to claim 1, characterized in that: There are four buffer and shock absorption mechanisms, and these four buffer and shock absorption mechanisms are evenly distributed in the circumferential direction of the limiting ring (9).
4. The multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device according to claim 1, characterized in that: The buffer rod (11) is radially distributed along the limiting ring (9).
5. The multi-degree-of-freedom buffered and shock-absorbing underwater telescopic shooting device according to claim 1, characterized in that: The limiting ring (9) is assembled from two semi-circular components.