A buoy recovery device suitable for research vessels

Abstract

This invention relates to the field of buoy recovery technology, and particularly to a buoy recovery device suitable for research vessels. It includes a lifting module with a fixed ring. The fixed ring is fixedly connected to circumferentially distributed limiting frames. The limiting frames are slidably connected to fixed frames. The circumferentially distributed fixed frames are collectively fixed to a support ring. The support ring is slidably connected to circumferentially distributed mounting seats. The mounting seats are fixedly connected to an air flotation module. The air flotation module is fixedly connected to a mounting shell. The mounting shell is slidably connected to a first sliding member, which is rotatably connected to a first plate. This invention uses circumferentially distributed first plates to surround the buoy, facilitating clamping and fixing the buoy, improving the accuracy of buoy clamping. Simultaneously, the opposing movement of all the first plates clamps and fixes the buoy, ensuring a uniform clamping force on the buoy, reducing the probability of tilting due to uneven force, and guaranteeing smooth buoy recovery operations.

Description

Technical Field

[0001] This invention relates to the field of buoy recovery technology, and more particularly to a buoy recovery device suitable for research vessels. Background Technology

[0002] Research vessel buoys are core equipment for ocean observation, undertaking the important task of long-term, continuous, and multi-dimensional collection of marine environmental data. After use, buoys need to be recovered. However, buoy recovery is a complex and meticulous process involving multiple steps and strict safety procedures. Its main objective is to safely and completely retrieve buoys deployed in the ocean and their onboard instruments from the ship. Currently, research vessels primarily recover small and medium-sized buoys by throwing a long, hooked rod from the ship's side to hook the buoy's towing ring, and by using small boats and drones for assisted recovery.

[0003] Research has found that when using the three recovery methods mentioned above to recover buoys, the clamping or hooking equipment is first connected to the buoy, and the buoy is pulled upwards. However, during this process, the complex sea conditions can cause the clamping or hooking equipment to fail to connect accurately to the buoy. At the same time, during the buoy's inspection process, impurities (seaweed or barnacles) on the sea surface can adhere to the buoy's surface, causing the buoy's center of gravity to shift. As the buoy is recovered and moved upwards, it can cause the buoy to detach from the clamping or hooking equipment, resulting in low recovery efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a buoy recovery device suitable for scientific research vessels.

[0005] The technical implementation of the present invention is as follows: a buoy recovery device suitable for scientific research vessels, comprising a lifting module, a fixing ring, a circumferentially distributed limiting frame fixedly connected to the fixing ring, a fixing frame slidably connected to the limiting frame, a support ring fixedly connected to the circumferentially distributed fixing frame, a mounting seat slidably connected to the support ring, an air flotation module fixedly connected to the mounting seat, an mounting shell fixedly connected to the air flotation module, a first sliding member slidably connected to the mounting shell, a first plate rotatably connected to one end of the first sliding member located outside the mounting shell, and the circumferentially distributed first plates collectively used to clamp and fix the buoy.

[0006] Furthermore, the mounting shell is slidably connected to a drive plate, and a first elastic element is fixedly connected between the two. The drive plate is fixedly connected to the adjacent first sliding element. A pull rope is fixedly connected to the drive plate. The pull rope is fixedly connected to the fixing ring. The mounting base is rotatably connected to a guide wheel, and the guide wheel is used to guide the pull rope.

[0007] Furthermore, a sliding sleeve is hinged to the air flotation module, a limiting groove is provided on the sliding sleeve, a sliding support rod is slidably connected to the sliding sleeve, the sliding support rod is connected to the fixed ring, and a guide block is fixedly connected to the sliding support rod, the guide block slides within the limiting groove.

[0008] Furthermore, the limiting groove is composed of a straight groove and an inclined groove.

[0009] Furthermore, the first sliding member is slidably connected to a detection rod, and a second elastic member is fixed between the two. A third elastic member is fixed between the mounting base and the support ring. The limiting frame is used to limit the mounting base. The circumferentially distributed detection rods are used to jointly adapt and fit the buoy.

[0010] Furthermore, the diameter of the circle containing the opposing sides of all the detection rods is smaller than the inner diameter of the fixing ring.

[0011] Furthermore, the mounting base is fixedly connected to a fixed shell, and a limiting toothed plate is slidably connected inside the fixed shell. The lower side of the support ring is provided with circumferentially distributed slots, and the slots on the support ring are used to limit the adjacent limiting toothed plates. A pressing rod is slidably connected inside the fixed shell, and the pressing rod is in contact with the limiting toothed plate. The detection rod is used to drive the pressing rod to move.

[0012] Furthermore, the mounting shell is slidably connected to a second sliding member, which is slidably connected to the adjacent drive plate, and a fourth elastic member is fixed between them. A second plate is hinged to the side of the second sliding member away from the adjacent drive plate, and a fifth elastic member is fixed between them. The circumferentially distributed second plates are used together to clamp and fix the buoy.

[0013] Furthermore, a positioning plate is slidably connected inside the mounting housing, and a sixth elastic member is fixedly connected between the two. Limiting teeth are fixedly connected to the second sliding member, and the positioning plate is used to limit the adjacent limiting teeth.

[0014] Furthermore, the first sliding member is fixedly connected to a transmission rod, which is used to drive the positioning plate to move.

[0015] The present invention has the following advantages: The present invention surrounds the buoy with circumferentially distributed first plates, which facilitates the clamping and fixing of the buoy and improves the accuracy of clamping the buoy. At the same time, the buoy is clamped and fixed by the opposing movement of all the first plates, so that the buoy is subjected to uniform clamping force, reducing the probability of the buoy tilting due to uneven force, and ensuring the smooth progress of buoy recovery operation.

[0016] This invention uses circumferentially distributed detection rods to first detect the size of the buoy, thereby positioning the first plate and ensuring that the first plate accurately clamps the buoy.

[0017] This invention uses a rope to drive an adjacent drive plate, thereby ensuring that the first plate always exerts a squeezing force on the buoy, thus improving the stability of the buoy clamping.

[0018] This invention uses a second plate distributed circumferentially to clamp and fix the lower part of the buoy, further improving the stability of the buoy's movement and ensuring the smooth recovery of the buoy. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the fixing ring of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the fixing ring and limiting frame of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the fixing frame and support ring of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the air flotation module and mounting shell of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the first sliding member and the first plate of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the drive plate and pull rope of the present invention;

[0026] Figure 8 This is an exploded three-dimensional view of the sliding sleeve and sliding support rod of the present invention;

[0027] Figure 9 This is a three-dimensional structural diagram of the detection rod and the fixing shell of the present invention;

[0028] Figure 10 This is an exploded three-dimensional view of the limiting tooth plate and the extrusion rod of the present invention;

[0029] Figure 11 This is a three-dimensional structural cross-sectional view of the mounting shell of the present invention;

[0030] Figure 12 This is a three-dimensional structural diagram of the second sliding member and the second plate of the present invention.

[0031] The attached figures are labeled as follows: 1-Lifting module, 2-Fixing ring, 3-Limiting frame, 4-Fixing frame, 5-Supporting ring, 6-Mounting base, 7-Air flotation module, 8-Mounting shell, 9-First sliding component, 10-First plate, 21-Drive plate, 22-Pull rope, 23-Guide wheel, 24-Sliding sleeve, 241-Limiting groove, 25-Sliding support rod, 251-Guide block, 31-Detection rod, 32-Fixing shell, 33-Limiting tooth plate, 34-Extrusion rod, 41-Second sliding component, 42-Second plate, 44-Transmission rod, 45-Positioning plate, 46-Limiting tooth. Detailed Implementation

[0032] 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.

[0033] Research has found that existing buoy recovery devices mainly use clamping or hooking equipment to recover buoys. In this process, the clamping or hooking equipment first connects to the buoy, but the buoy is difficult to connect to the clamping or hooking equipment due to the action of waves, resulting in low recovery efficiency.

[0034] Example 1

[0035] A buoy recovery device suitable for research vessels, such as Figures 1-7 and Figures 10-12 As shown, it includes a lifting module 1, a fixed ring 2, a circumferentially distributed limiting frame 3 fixedly connected to the fixed ring 2, a fixed frame 4 slidably connected to the limiting frame 3, a support ring 5 slidably connected to the circumferentially distributed fixed frame 4, a mounting seat 6 slidably connected to the support ring 5, an air flotation module 7 fixedly connected to the mounting seat 6, an air flotation module 7 fixedly connected to the air flotation module 7, a mounting shell 8 slidably connected to the mounting shell 8, a first sliding member 9 slidably connected to the first sliding member 9 located outside the mounting shell 8, a first plate 10 rotatably connected to the first sliding member 9, and the circumferentially distributed first plates 10 are used to clamp and fix the buoy.

[0036] In the above scheme, the lifting module 1 is installed on the deck of the research vessel. The lifting module 1 mainly consists of a lifting drive device (hydraulic push rod) and a winch. In this paper, there are six limit frames 3, and all circumferentially distributed parts have six of each and are evenly distributed. The diameter of the fixing ring 2 is smaller than the diameter of the support ring 5. A square through groove is provided in the middle of the mounting base 6, and the support ring 5 slides in the square through groove. The air flotation module 7 is located on the lower side of the mounting base 6. The air flotation module 7 is an existing airbag flotation device used to support all the parts on it, so that all the parts float on the sea surface. Rubber pads are provided on the opposite sides of all the first plates 10 to reduce the hard squeezing force on the buoy. A protective shell can be installed on the air flotation module 7 to wrap all the parts on it, so as to prevent impurities in the seawater (seaweed, etc.) from getting tangled on the parts and affecting their normal use.

[0037] Furthermore, such as Figures 2-4 and Figure 8 As shown, the mounting shell 8 is slidably connected to the drive plate 21, and a first elastic element is fixed between the two. The drive plate 21 is fixedly connected to the adjacent first sliding element 9. The drive plate 21 is fixedly connected to the pull rope 22, and the pull rope 22 is fixedly connected to the fixing ring 2. The mounting base 6 is rotatably connected to the guide wheel 23, and the guide wheel 23 is used to guide the pull rope 22.

[0038] In the above scheme, the first elastic element is a tension spring, which is used to drive the drive plate 21 to reset; the pull rope 22 is a steel wire rope, and its surface is coated with a corrosion-resistant coating to extend the service life of the pull rope 22.

[0039] Furthermore, such as Figures 2-4 and Figure 8 As shown, a sliding sleeve 24 is hinged to the air flotation module 7. A limiting groove 241 is provided on the sliding sleeve 24. A sliding support rod 25 is slidably connected to the sliding sleeve 24. The sliding support rod 25 is ball-jointed with the fixed ring 2. A guide block 251 is fixedly connected to the sliding support rod 25. The guide block 251 slides within the limiting groove 241. The limiting groove 241 is composed of a straight groove and an inclined groove.

[0040] In the above scheme, each air flotation module 7 has two sliding sleeves 24. Through the support of the sliding sleeves 24 and the adjacent sliding support rods 25, the adjacent air flotation modules 7 are limited, reducing the amplitude of the shaking of the air flotation modules 7, and the air flotation modules 7 can only move along the extension line of the corresponding radius on the support ring 5. The inclined groove of the limiting groove 241 is used to limit the adjacent guide block 251. During the initial lowering of the air flotation module 7, the guide block 251 is located in the inclined groove of the adjacent limiting groove 241.

[0041] Furthermore, such as Figures 4-6 , Figure 9 and Figure 10As shown, the first sliding member 9 is slidably connected to the detection rod 31, and the two are fixedly connected to the second elastic member. The mounting base 6 and the support ring 5 are fixedly connected to the third elastic member. The limiting frame 3 is used to limit the mounting base 6. The circumferentially distributed detection rods 31 are used to adapt and fit the buoy together. The diameter of the circle on the opposite side of all detection rods 31 is smaller than the inner diameter of the fixed ring 2.

[0042] In the above scheme, the diameter of the circle containing the opposing sides of all detection rods 31 is smaller than the diameter of the circle containing the opposing sides of all first plates 10, so that the detection rods 31 contact the buoy first before the first plates 10; the second elastic element on the detection rod 31 is a spring, used to drive the adjacent detection rod 31 to reset; the third elastic element on the mounting base 6 is a spring, and is initially in a compressed and stored state; the lower side of the limiting frame 3 and the inside of the mounting base 6 are both provided with inclined surfaces (such as... Figure 6 As shown in the figure, initially, the limit bracket 3 is attached to the mounting base 6, thus preventing the mounting base 6 from moving.

[0043] Furthermore, such as Figure 5 , Figure 6 , Figure 9 and Figure 10 As shown, the mounting base 6 is fixedly connected to a fixed shell 32, and a limiting toothed plate 33 is slidably connected inside the fixed shell 32. The lower side of the support ring 5 is provided with circumferentially distributed slots. The slots on the support ring 5 are used to limit the adjacent limiting toothed plates 33. A pressing rod 34 is slidably connected inside the fixed shell 32. The pressing rod 34 is in contact with the limiting toothed plate 33. The detection rod 31 is used to drive the pressing rod 34 to move.

[0044] In the above scheme, the mounting base 6 has two fixed shells 32 that are symmetrically distributed. When the limiting tooth plate 33 moves upward and contacts the adjacent slot of the support ring 5, the limiting tooth plate 33 will be unable to move. The limiting tooth plate 33 is located on the upper side of the corresponding pressing rod 34. The left side of the pressing rod 34 is provided with an inclined surface, and the left side of the detection rod 31 is provided with symmetrically distributed inclined surfaces. When the detection rod 31 moves to the left, the detection rod 31 presses the pressing rod 34 through its inclined surface, causing the pressing rod 34 to move upward.

[0045] The working principle of a buoy recovery device suitable for scientific research vessels disclosed in this embodiment is as follows:

[0046] When it is necessary to recover the buoy, the research vessel is moored near the buoy (within the coverage area of ​​the lifting module 1). Then, the lifting module 1 is activated, which moves the fixed ring 2 horizontally to directly above the buoy. The fixed ring 2 is then lowered, which moves all the sliding support rods 25 on it downward. During this process, the guide block 251 is located in the inclined groove of the adjacent limiting groove 241. The sliding sleeve 24 will not move relative to the adjacent sliding support rod 25 under the gravity of all the parts connected to it, so that all the parts connected to the sliding sleeve 24 move downward.

[0047] During the lowering of the fixing ring 2, the fixing ring 2 drives the limiting frame 3 on it to move downward. The limiting frame 3 is always in contact with the adjacent mounting seat 6 and limits it, so that the mounting seat 6 cannot move relative to the support ring 5. That is, all the first plates 10 and all the detection rods 31 will not move horizontally.

[0048] During the downward movement of the air flotation module 7, when all the air flotation modules 7 are in contact with the sea surface, the air flotation modules 7 will not continue to move downward under the action of buoyancy, and all the parts on them will not continue to move. At this time, the fixing ring 2 will continue to move downward. The fixing ring 2 drives one end of the pull rope 22 to move downward, making the pull rope 22 loose. The fixing ring 2 also drives all the sliding support rods 25 to move downward. The sliding support rods 25 drive the guide block 251 to move and squeeze the adjacent limiting groove 241, causing the sliding sleeve 24 to swing and the sliding support rods 25 to rotate at the same time, until the guide block 251 slides to the connection between the inclined groove and the straight groove on the adjacent limiting groove 241, and the lowering of the fixing ring 2 stops.

[0049] When the fixed ring 2 stops being lowered, all the first plates 10 and all the detection rods 31 are aligned with the buoy and surround the buoy. Then, the fixed ring 2 is moved upward by controlling the lifting module 1. The fixed ring 2 drives all the sliding support rods 25 on it to move upward. During the process, the sliding support rods 25 slide relative to the adjacent sliding sleeves 24, that is, the guide block 251 slides upward along the straight groove of the adjacent limiting groove 241. The fixed ring 2 drives one end of the pull rope 22 on it to move upward.

[0050] As the fixed ring 2 moves upward, it drives all the limiting frames 3 to move. The limiting frames 3 slide relative to the adjacent fixed frames 4 and gradually lose their limiting effect on the adjacent mounting seats 6. The mounting seats 6 move horizontally under the action of the third elastic element on them, that is, all the mounting seats 6 move in opposite directions. The mounting seats 6 drive the detection rods 31 to move through the fixed shell 32 and the pressing rod 34 on them. The mounting seats 6 drive the first plate 10 to move through the air flotation module 7, the mounting shell 8, the drive plate 21 and the first sliding element 9. That is, all the detection rods 31 and all the first plates 10 move in opposite directions. During the above process, the pull rope 22 is always in a slack state.

[0051] During the movement of all the detection rods 31 in opposite directions, when a detection rod 31 contacts the buoy, it cannot move. The mounting base 6 continues to move under the action of the third elastic element on it. The first sliding member 9 continues to move and squeezes the second elastic element between itself and the adjacent detection rod 31. At the same time, the squeezing rod 34 continues to move and squeezes the adjacent detection rod 31. During the process, the squeezing rod 34 begins to move upward and pushes the adjacent limiting tooth plate 33 to move until the limiting tooth plate 33 contacts the corresponding slot on the support ring 5. Then the limiting tooth plate 33 cannot move. The limiting tooth plate 33 limits the mounting base 6 through the adjacent fixed shell 32. Neither the mounting base 6 nor the air flotation module 7 can continue to slide. At this time, all the detection rods 31 are in contact with the buoy, and all the first plates 10 are about to contact the buoy. The size of different buoys is detected by all the detection rods 31, thus determining the specific position of the first plate 10, which facilitates the clamping and fixing of different buoys by the first plate 10, increasing the applicability of this device.

[0052] After the detection rod 31 contacts the buoy, the fixing ring 2 continues to move upward and stretches the pull rope 22 on it. The pull rope 22 slides along the adjacent guide wheel 23 until the pull rope 22 is in a taut state. The fixing ring 2 drives the adjacent drive plate 21 to move through the pull rope 22. The first elastic element on the drive plate 21 is stretched. The drive plate 21 drives the adjacent first sliding element 9 to move (the first sliding element 9 squeezes the adjacent second elastic element). The first sliding element 9 drives the adjacent first plate 10 to move, so that all the first plates 10 move towards each other again until the first plate 10 contacts the buoy. The first plate 10 swings under the squeezing action of the buoy sidewall, so that the first plate 10 fits the buoy more closely. Then the first plate 10 stops moving.

[0053] After the first plate 10 contacts the buoy, the buoy is clamped and fixed. Then, the fixing ring 2 continues to move upward. The fixing ring 2 drives the first plate 10 to move upward through the pull rope 22, and uses all the first plates 10 to drive the buoy to move upward. During this process, the pull rope 22 always applies a pulling force to the drive plate 21, and the drive plate 21 always applies a lateral force to the adjacent first plates 10, so that the first plates 10 have a squeezing force on the buoy, ensuring the stability of the buoy's movement. The circumferentially distributed first plates 10 surround and clamp the buoy, improving the accuracy of clamping the buoy and enhancing the fixing effect of the buoy.

[0054] During the upward movement of the buoy, the fixed ring 2 is moved by controlling the lifting module 1, causing the buoy to move onto the deck of the research vessel. When the buoy is in contact with the deck, all the first plates 10 and all the detection rods 31 cannot move. The fixed ring 2 moves downward and the pull rope 22 is loosened. At this time, the drive plate 21, under the action of the first elastic element on it, drives the first plates 10 to move, causing the first plates 10 to lose contact with the buoy. During this process, the fixed ring 2 drives the limiting frame 3 to move downward until the limiting frame 3 contacts and squeezes the adjacent mounting seat 6. Then, all the mounting seats 6 are manually moved backward until the mounting seats 6 are reset. The limiting frame 3 contacts the adjacent mounting seat 6 again, and all the detection rods 31 lose contact with the buoy. Then, the fixed ring 2 is moved upward and away from the buoy by controlling the lifting module 1, and the lifting module 1 is turned off, thus completing the buoy recovery operation.

[0055] Example 2

[0056] Based on Example 1, further, such as Figures 4-7 , Figure 11 and Figure 12 As shown, the mounting shell 8 is slidably connected to a second sliding member 41, which is slidably connected to an adjacent drive plate 21, and a fourth elastic member is fixed between them. A second plate 42 is hinged to the side of the second sliding member 41 away from the adjacent drive plate 21, and a fifth elastic member is fixed between them. The circumferentially distributed second plates 42 are used together to clamp and fix the buoy.

[0057] In the above scheme, the second sliding member 41 is composed of two cylinders with different diameters. The fourth elastic element of the second sliding member 41 is a spring. The drive plate 21 drives the adjacent second sliding member 41 to move through the fourth elastic element. All the opposing sides of the second plates 42 are provided with rubber pads to reduce the hard squeezing force on the buoy and reduce the damage to the buoy. The fifth elastic element on the second plate 42 is a spring, which is used to drive the second plate 42 to move.

[0058] Furthermore, such as Figure 7 , Figure 11 and Figure 12 As shown, a locking plate 45 is slidably connected inside the mounting shell 8, and a sixth elastic member is fixed between the two. A limiting tooth 46 is fixedly connected to the second sliding member 41, and the locking plate 45 is used to limit the adjacent limiting tooth 46. A transmission rod 44 is fixedly connected to the first sliding member 9, and the transmission rod 44 is used to drive the locking plate 45 to move.

[0059] In the above scheme, the lower side of the positioning plate 45 is configured with an array of protrusions, and the sixth elastic element on the positioning plate 45 is a tension spring. This sixth elastic element is used to drive the adjacent positioning plates 45 to move upward and reset; when the positioning plate 45 moves downward and contacts the adjacent limiting teeth 46, the limiting teeth 46 will be unable to move; the lower side of the transmission rod 44 is provided with an inclined surface (such as... Figure 12 As shown), the upper side of the positioning plate 45 is provided with an inclined surface. The transmission rod 44 presses the adjacent positioning plate 45 through its upper inclined surface, causing the positioning plate 45 to move downward.

[0060] The working principle of a buoy recovery device suitable for scientific research vessels disclosed in this embodiment is as follows:

[0061] Based on the working principle of Embodiment 1, during the process of all mounting shells 8 moving in opposite directions, the mounting shell 8 drives the first sliding member 9 and the second sliding member 41 inside it to move through the drive plate 21. The second sliding member 41 drives the adjacent second plate 42 to move, that is, the second plate 42 moves synchronously with the first plate 10 and gradually approaches the buoy.

[0062] During the process of the pull rope 22 driving the adjacent drive plate 21 to move, the drive plate 21 drives the first plate 10 to move through the first sliding member 9. At the same time, the drive plate 21 drives the second sliding member 41 to move through the fourth elastic member on it, so that the second sliding member 41 slides relative to the adjacent mounting shell 8. The second sliding member 41 drives the adjacent second plate 42 to move and gradually contact the buoy. When the second plate 42 contacts the buoy, the second plate 42 will swing adaptively along the side wall of the buoy and compress the fifth elastic member on it. After that, the second plate 42 can no longer move. The drive plate 21 continues to move and compress the fourth elastic member on it. The drive plate 21 will drive the first plate 10 to move through the first sliding member 9 and contact the buoy, clamping and fixing the buoy. In this way, all the second plates 42 are used to clamp and fix the lower side of the buoy, further enhancing the fixing effect of the buoy, reducing the probability of the buoy falling off during the buoy recovery process, and ensuring the smooth progress of the buoy recovery operation.

[0063] After the second plate 42 contacts the buoy, the drive plate 21 drives the first sliding member 9 to move, and the first sliding member 9 drives the transmission rod 44 on it to move. The transmission rod 44 moves downward and presses the locking plate 45, causing the locking plate 45 to move downward and compress the adjacent sixth elastic member. When the locking plate 45 contacts the adjacent limiting tooth 46, the locking plate 45 limits the limiting tooth 46, thereby limiting the second sliding member 41 and ensuring the stability of the second sliding member 41, thus ensuring the stability of the second plate 42 in fixing the buoy.

[0064] During the release of the buoy, all the drive plates 21 move in opposite directions. The drive plates 21 drive the transmission rod 44 to reset through the first sliding member 9, thereby losing the pressure on the positioning plate 45. This causes the positioning plate 45 to reset under the action of the sixth elastic member. During this process, the drive plates 21 lose the pressure on the fourth elastic member and drive the second sliding member 41 to reset through the fourth elastic member, thereby causing the second plate 42 to lose contact with the buoy.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A buoy recovery device suitable for research vessels, characterized in that: The device includes a lifting module (1), which is provided with a fixing ring (2). The fixing ring (2) is fixedly connected to a circumferentially distributed limiting frame (3). The limiting frame (3) is slidably connected to a fixing frame (4). The circumferentially distributed fixing frames (4) are jointly fixedly connected to a support ring (5). The support ring (5) is slidably connected to a circumferentially distributed mounting seat (6). The mounting seat (6) is fixedly connected to an air flotation module (7). The air flotation module (7) is fixedly connected to a mounting shell (8). The mounting shell (8) is slidably connected to a first sliding member (9). The end of the first sliding member (9) located outside the mounting shell (8) is rotatably connected to a first plate (10). The circumferentially distributed first plates (10) are used together to clamp and fix the buoy.

2. A buoy recovery device suitable for research vessels according to claim 1, characterized in that: The mounting shell (8) is slidably connected to a drive plate (21), and a first elastic element is fixed between the two. The drive plate (21) is fixedly connected to the adjacent first sliding element (9). The drive plate (21) is fixedly connected to a pull rope (22), and the pull rope (22) is fixedly connected to the fixing ring (2). The mounting base (6) is rotatably connected to a guide wheel (23), and the guide wheel (23) is used to guide the pull rope (22).

3. A buoy recovery device suitable for research vessels according to claim 2, characterized in that: The air flotation module (7) is hinged with a sliding sleeve (24), and the sliding sleeve (24) is provided with a limiting groove (241). The sliding sleeve (24) is slidably connected to a sliding support rod (25), and the sliding support rod (25) is ball-jointed with the fixed ring (2). The sliding support rod (25) is fixedly connected to a guide block (251), and the guide block (251) slides within the limiting groove (241).

4. A buoy recovery device suitable for research vessels according to claim 3, characterized in that: The limiting groove (241) consists of a straight groove and an inclined groove.

5. A buoy recovery device suitable for research vessels according to claim 3, characterized in that: The first sliding member (9) is slidably connected to the detection rod (31), and a second elastic member is fixed between the two. A third elastic member is fixed between the mounting base (6) and the support ring (5). The limiting frame (3) is used to limit the mounting base (6). The detection rods (31) distributed in the circumferential direction are used to adapt and fit the buoy together.

6. A buoy recovery device suitable for research vessels according to claim 5, characterized in that: The diameter of the circle containing the opposite sides of all the detection rods (31) is smaller than the inner diameter of the fixing ring (2).

7. A buoy recovery device suitable for research vessels according to claim 5, characterized in that: The mounting base (6) is fixedly connected to a fixed shell (32), and a limiting toothed plate (33) is slidably connected inside the fixed shell (32). The lower side of the support ring (5) is provided with circumferentially distributed slots. The slots on the support ring (5) are used to limit the adjacent limiting toothed plates (33). A pressing rod (34) is slidably connected inside the fixed shell (32). The pressing rod (34) is in contact with the limiting toothed plate (33). The detection rod (31) is used to drive the pressing rod (34) to move.

8. A buoy recovery device suitable for research vessels according to claim 7, characterized in that: The mounting shell (8) is slidably connected to a second sliding member (41), which is slidably connected to the adjacent drive plate (21), and a fourth elastic member is fixed between them. The second sliding member (41) is hinged to a second plate (42) on the side away from the adjacent drive plate (21), and a fifth elastic member is fixed between them. The circumferentially distributed second plates (42) are used together to clamp and fix the buoy.

9. A buoy recovery device suitable for research vessels according to claim 8, characterized in that: The mounting shell (8) is slidably connected to a positioning plate (45), and a sixth elastic member is fixed between the two. A limiting tooth (46) is fixed on the second sliding member (41), and the positioning plate (45) is used to limit the adjacent limiting tooth (46).

10. A buoy recovery device suitable for research vessels according to claim 9, characterized in that: The first sliding member (9) is fixedly connected to a transmission rod (44), which is used to drive the positioning plate (45) to move.

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