An underwater rescue apparatus

By designing miniaturized underwater rescue equipment, and utilizing foldable airbags and propellers to provide buoyancy and power, the problem of heavy and difficult-to-carry lifebuoys has been solved, enabling rapid and effective underwater rescue.

CN117508522BActive Publication Date: 2026-07-21WEIHAI DUOYU MARINE TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WEIHAI DUOYU MARINE TECH CO LTD
Filing Date
2023-12-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing lifebuoys or rescue containers are large and heavy, making them inconvenient for non-professionals to carry and use, and difficult to conduct underwater rescues quickly and effectively.

Method used

An underwater rescue device was designed, comprising a storage box, an expansion and floating mechanism, an air supply mechanism, an air guiding and positioning mechanism, a moving mechanism, and a driving mechanism. It provides buoyancy and power through folding airbags and propellers, enabling miniaturized carrying and long-distance throwing, and can be fixed to the drowning person.

Benefits of technology

It enables miniaturization, portability, and long-distance throwing, providing buoyancy and power, saving rescuers' energy, improving rescue efficiency, preventing device loss, and adapting to different rescue scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses underwater rescue equipment, including storage box, the top of storage box is provided with top cover, and both ends of the bottom of top cover are fixedly connected with limiting plates; the inflatable floating mechanism comprises a gas collection box, the gas collection box is fixedly connected with the storage box, the top of the gas collection box is fixedly connected with a gas collection cover, the gas collection cover is communicated with the gas collection box, a plurality of connecting pipes are fixedly connected with the gas collection cover, the connecting pipes are fixedly connected with folding air bags, a plurality of fixed ropes are fixedly connected with the folding air bags, the folding air bags similar to life buoys are compressed to the storage box, the top cover and other small storage spaces, so that the occupied space of the whole device will be small, which is not only convenient for storage, but also convenient for carrying, and since the occupied space is small, the device can be conveniently thrown, and the gas tank is matched with the deflation, so that the rescuer can directly throw the device to the position needing rescue without getting into water, and then the device is inflated to provide a floating object for the drowning person.
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Description

Technical Field

[0001] This invention relates to the field of underwater rescue, and more particularly to an underwater rescue device. Background Technology

[0002] Underwater rescue refers to emergency rescue operations conducted underwater, typically used to rescue people who are trapped, injured, or in danger. This type of rescue usually involves divers, diving equipment, underwater communication equipment, search and rescue tools, and underwater medical equipment.

[0003] Accidents of swimmers falling into the water frequently occur at swimming pools and beaches. To rescue swimmers who have fallen into the water, i.e. those in distress, life rings or rescue containers are usually used.

[0004] Because lifebuoys or rescue cans are difficult to throw out of the water and cannot be thrown very far, rescuers carry lifebuoys or rescue cans with them and use them close to the person in the water.

[0005] However, life rings or rescue containers are large and heavy, making them inconvenient to carry. It is difficult for non-professional underwater rescuers to carry them to a designated location for rescue, and they are not convenient to use. Summary of the Invention

[0006] The purpose of this invention is to provide an underwater rescue device to solve the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] An underwater rescue device includes a storage box, the top of which is provided with a top cover, and both ends of the bottom of the top cover are fixedly connected to limit plates;

[0009] An inflatable buoyancy mechanism is located inside the top cover and is fixedly connected to the storage box. The inflatable buoyancy mechanism is used to support the user's buoyancy.

[0010] An air supply mechanism, located inside the storage box and threadedly connected to the storage box, is used to supply gas to the expansion and floating mechanism;

[0011] An air guiding and positioning mechanism is located inside the storage box and is fixedly connected to the storage box. The air guiding and positioning mechanism is used in conjunction with an air supply mechanism to fix the limiting plate.

[0012] A moving mechanism located inside the storage box, the moving mechanism being moved by a drive expansion and floating mechanism;

[0013] A drive mechanism is located to the left of the air guiding and positioning mechanism. The drive mechanism is fixedly connected to the storage box. The drive mechanism, together with the air guiding and positioning mechanism and the air supply mechanism, is used to adjust the position of the moving mechanism.

[0014] The expansion and floating mechanism includes an air-gathering box, which is fixedly connected to a storage box. An air-gathering cover is fixedly connected to the top of the air-gathering box and is connected to the air-gathering box. Multiple connecting pipes are fixedly connected to the air-gathering cover, and folding airbags are fixedly connected to the connecting pipes. Multiple fixing ropes are fixedly connected to the folding airbags.

[0015] Preferably, the gas supply mechanism includes a gas storage tank, which is threadedly connected to a storage box. A fixing ring is fixedly connected to the gas storage tank, and a sealing plate is inserted into the fixing ring.

[0016] A top rod is fixedly connected to the top of the sealing plate. The top rod passes through the gas storage tank and extends to the outside of the gas storage tank. The top rod passes through the storage box and is slidably connected to the storage box. A through hole is provided on the storage box. A third spring is fixedly connected to the bottom of the sealing plate. A positioning frame is fixedly connected to the bottom of the third spring. The positioning frame is fixedly connected to the gas storage tank.

[0017] The gas storage tank is equipped with a baffle, which is fixedly connected to the top rod.

[0018] Preferably, the air guiding and positioning mechanism includes an air guiding pipe, which is fixedly connected to the storage box and communicates with the air gathering box. A guide tube is fixedly connected inside the air guiding pipe, and a slide plate is slidably connected inside the guide tube. The top of the slide plate is connected to the guide tube through a fourth spring, and two pull ropes are fixedly connected to the bottom of the slide plate.

[0019] Preferably, a fixed tube is fixedly connected to the right side of the air guide tube, and a limit block is slidably connected inside the fixed tube. The limit block is connected to the fixed tube through a second spring. A pull rope located on the right side of the bottom of the slide plate extends into the fixed tube and is fixedly connected to the limit block. The limit block is inserted into a limit plate.

[0020] Preferably, the driving mechanism includes a mounting box, which is fixedly connected to the storage box. A slide rod is slidably connected to the mounting box, which passes through and is slidably connected to the air duct. The slide rod is fixedly connected to a pull rope, and a magnetic block is fixedly connected to the slide rod. The magnetic block is slidably connected to the mounting box.

[0021] Preferably, a telescopic tube is fixedly connected to the bottom of the mounting box, a connecting column is fixedly connected inside the telescopic tube, the top of the connecting column is connected to the telescopic tube through a first spring, a magnetic column is provided inside the first spring, the magnetic column is fixedly connected to the connecting column, and the magnetic block has the opposite magnetism to the magnetic block.

[0022] Preferably, the drive mechanism includes a mounting cover, which is fixedly connected to a connecting column. A drive box is fixedly connected to the right side of the mounting cover. A second protective box is fixedly connected to the drive box. A motor is fixedly connected inside the second protective box. A rotating shaft is fixedly connected to the power output shaft of the motor. The rotating shaft passes through the drive box and is rotatably connected to the drive box. Two one-way components are provided inside the drive box.

[0023] Preferably, the unidirectional component includes a first rotating tube, which is rotatably connected to the drive box. A first drive wheel is fixedly connected to the first rotating tube, and a toothed groove is formed through the first drive wheel. A first rotating column is provided inside the first rotating tube, and a first actuating piece is fixedly connected to the first rotating column.

[0024] A second drive wheel is provided on the left side of the first drive wheel. A connecting frame is fixedly connected to the second drive wheel. The connecting frame is fixedly connected to the rotating shaft. A second rotating column is provided inside the second drive wheel. A second rotating tube is fixedly connected to the second rotating column. The second rotating tube is rotatably connected to the drive box. A second actuating piece is fixedly connected to the second rotating column.

[0025] Preferably, a plurality of second fixing boxes are fixedly connected to the mounting cover, and a first fixing box is fixedly connected between the plurality of second fixing boxes. A drive shaft is rotatably connected to the first fixing box, and a propeller is fixedly connected to the drive shaft. A third pulley is fixedly connected to both the drive shaft and the rotating tube located on the right side of the inner cavity of the drive box, and the two third pulleys are connected by a third connecting belt.

[0026] Preferably, the mounting cover has a groove, a positioning block is fixedly connected inside the groove, a reciprocating screw is rotatably connected to the positioning block, an auxiliary plate is threadedly connected to the reciprocating screw, and the auxiliary plate is slidably connected to the mounting cover.

[0027] The top of the mounting cover is fixedly connected to a first protective box, and a universal joint is rotatably connected to the first protective box. The universal joint passes through the drive box and is rotatably connected to the drive box.

[0028] The universal joint is fixedly connected to a second pulley at one end of the first protective box and to the reciprocating lead screw. The two second pulleys are connected by a second connecting belt. The universal joint is fixedly connected to a first pulley at one end inside the drive box and to the rotating tube located on the left side of the drive box cavity. The two first pulleys are connected by a first connecting belt.

[0029] The beneficial effects of this invention are:

[0030] 1. This invention compresses a foldable airbag, similar to a lifebuoy, into a very small storage space, such as a storage box and a top cover. This makes the entire device occupy very little space, which is not only convenient for storage but also for carrying. Because of its small size, it can be easily thrown. With the deflating of the air tank, rescuers can effectively throw it to the location where rescue is needed without entering the water. The device then inflates to provide buoyancy for the drowning person.

[0031] 2. When the gas supply begins, this invention not only removes the limiting plate, but also allows the top cover to be removed as the gas fills the folded airbag, thus fully unfolding and providing a floating effect. With the help of the fixing rope, it can also be effectively tied to the body to avoid loss. It can also drive the magnetic block, and with the help of the magnetic block and magnetic column, it can effectively move the mounting cover and propeller out of the storage box. The propeller can also effectively provide a power, making it convenient for users to move with less physical effort.

[0032] 3. This invention enables the groove on the upper part of the mounting cover to move out of the auxiliary plate, thereby effectively changing the area of ​​the upper part of the mounting cover. This allows for the creation of an optimal flow environment through appropriate control or guidance of fluid flow, thereby improving the propulsion efficiency of the propeller. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 A schematic diagram of the internal structure of the storage box of this invention;

[0035] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0036] Figure 4 This is a schematic diagram of the expansion and floating mechanism of the present invention;

[0037] Figure 5 This is a schematic diagram of the gas supply mechanism of the present invention;

[0038] Figure 6 This is a schematic diagram of the drive mechanism of the present invention;

[0039] Figure 7 for Figure 6 Enlarged schematic diagram of part B;

[0040] Figure 8 for Figure 6 Enlarged schematic diagram of part C;

[0041] Figure 9 This is a schematic diagram of the structure of the unidirectional component of the present invention;

[0042] Figure 10This is a right view of the driving mechanism of the present invention.

[0043] Reference numerals: 1. Storage box; 2. Top cover; 3. Mounting cover; 4. Telescopic tube; 5. First spring; 6. Magnetic column; 7. Slide rod; 8. Magnetic block; 9. Mounting box; 10. Gas tank; 11. Air guide tube; 12. Through hole; 13. Slide plate; 14. Top rod; 15. Pull rope; 16. Second spring; 17. Fixing tube; 18. Limiting block; 19. Limiting plate; 20. Fourth spring; 21. Guide tube; 22. Folding airbag; 23. Gas gathering cover; 24. Connecting tube; 25. Fixing rope; 26. Gas gathering box; 27. Baffle; 28. Fixing ring; 29. ​​Third spring; 30. Positioning frame; 31. Sealing plate; 32. Propeller; 33. First fixing box; 34. Second fixing box; 35. First connecting belt; 36. First pulley; 37. Universal joint; 38. Second pulley; 39. First protective box; 40. Second connecting belt; 41. Reciprocating lead screw; 42. Positioning block; 43. Auxiliary plate; 44. Second rotating column; 45. Second rotating tube; 46. Third pulley; 47. Second drive wheel; 48. Connecting frame; 49. Second actuating plate; 50. Rotating shaft; 51. Motor; 52. Second protective box; 53. Third connecting belt; 54. Drive shaft; 55. First drive wheel; 56. First rotating column; 57. First actuating plate; 58. First rotating tube. Detailed Implementation

[0044] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0045] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0046] Example 1:

[0047] like Figure 1-10 As shown, an underwater rescue device includes a storage box 1, a top cover 2 is provided on the top of the storage box 1, and limit plates 19 are fixedly connected to both ends of the bottom of the top cover 2.

[0048] An expansion and floating mechanism is located inside the top cover 2 and is fixedly connected to the storage box 1. The expansion and floating mechanism is used to support the user's floating.

[0049] An air supply mechanism is located inside the storage box 1 and is threadedly connected to the storage box 1. The air supply mechanism is used to supply gas to the expansion and floating mechanism.

[0050] An air guiding and positioning mechanism is located inside the storage box 1 and is fixedly connected to the storage box 1. The air guiding and positioning mechanism, together with the air supply mechanism, is used to fix the limiting plate 19.

[0051] The moving mechanism is located inside the storage box 1 and is moved by a drive expansion and floating mechanism.

[0052] The drive mechanism is located to the left of the air guiding and positioning mechanism. The drive mechanism is fixedly connected to the storage box 1. The drive mechanism, together with the air guiding and positioning mechanism and the air supply mechanism, is used to adjust the position of the moving mechanism.

[0053] The expansion and floating mechanism includes an air-gathering box 26, which is fixedly connected to the storage box 1. An air-gathering cover 23 is fixedly connected to the top of the air-gathering box 26. The air-gathering cover 23 is connected to the air-gathering box 26. Multiple connecting pipes 24 are fixedly connected to the air-gathering cover 23. A folding airbag 22 is fixedly connected to the connecting pipes 24. Multiple fixing ropes 25 are fixedly connected to the folding airbag 22.

[0054] The gas supply mechanism includes a gas storage tank 10, which is threadedly connected to a storage box 1. A fixing ring 28 is fixedly connected to the gas storage tank 10, and a sealing plate 31 is inserted into the fixing ring 28.

[0055] A top rod 14 is fixedly connected to the top of the sealing plate 31. The top rod 14 passes through the gas storage tank 10 and extends to the outside of the gas storage tank 10. The top rod 14 passes through the storage box 1 and is slidably connected to the storage box 1. A through hole 12 is provided on the storage box 1. A third spring 29 is fixedly connected to the bottom of the sealing plate 31. A positioning frame 30 is fixedly connected to the bottom of the third spring 29. The positioning frame 30 is fixedly connected to the gas storage tank 10.

[0056] The gas storage tank 10 is equipped with a baffle 27, which is fixedly connected to the top rod 14;

[0057] The air guiding and positioning mechanism includes an air guiding pipe 11, which is fixedly connected to the storage box 1 and connected to the air gathering box 26. A guide pipe 21 is fixedly connected inside the air guiding pipe 11, and a slide plate 13 is slidably connected inside the guide pipe 21. The top of the slide plate 13 is connected to the guide pipe 21 through a fourth spring 20, and two pull ropes 15 are fixedly connected to the bottom of the slide plate 13.

[0058] A fixed tube 17 is fixedly connected to the right side of the air duct 11. A limit block 18 is slidably connected inside the fixed tube 17. The limit block 18 is connected to the fixed tube 17 through a second spring 16. A pull rope 15 located on the right side of the bottom of the slide plate 13 extends into the fixed tube 17 and is fixedly connected to the limit block 18. The limit block 18 is inserted into the limit plate 19.

[0059] When someone is drowning, but there are no personnel on site capable of providing rescue;

[0060] By rotating the gas tank 10, the gas tank 10 will continuously drive the top rod 14 to move upward. The upward movement of the top rod 14 will squeeze the slide plate 13. Since the third spring 29 has a greater elastic force than the first spring 5 and the second spring 16, the top rod 14 will first drive the slide plate 13 to move upward. The slide plate 13 pulls the pull rope 15, and the pull rope 15 pulls the limit block 18. The limit block 18 disengages from the limit plate 19, thereby canceling the limit on the top cover 2.

[0061] As the push rod 14 moves upward, when the push rod 14 moves to the moving position, the sealing plate 31 on the push rod 14 will also detach from the fixing ring 28, thus creating a gap. In this way, the gas in the gas storage tank 10 will be discharged through the gap and the air outlet at the top of the gas storage tank 10, and the discharged gas will enter the folded airbag 22 through the air guide pipe 11.

[0062] Because the size of the gap can be controlled, reducing the size of the gap slows down the gas release rate. Furthermore, due to the small size of the device itself, it can be thrown directly to the drowning person. During this process, due to the continuous release of gas, when it reaches the drowning person, the folding airbag 22 will continuously expand, squeezing out the top cover 2 and fully expanding. The drowning person can gain buoyancy through the expanding folding airbag 22, thus being rescued.

[0063] Example 2:

[0064] like Figure 1-10 As shown, while all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0065] When there are rescuers on site, the device can be carried on their person due to its small size. When the rescuers arrive at the designated location, they can quickly open it using the method described above. After opening, the folding airbag 22 inflates. With the help of the fixing rope 25 on the folding airbag 22, it can be fixed to the drowning person to prevent loss.

[0066] Example 3:

[0067] like Figure 1-10 As shown, while other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the driving mechanism includes a mounting box 9, which is fixedly connected to the storage box 1. A sliding rod 7 is slidably connected to the mounting box 9. The sliding rod 7 passes through the air duct 11 and is slidably connected to the air duct 11. The sliding rod 7 is fixedly connected to the pull rope 15. A magnetic block 8 is fixedly connected to the sliding rod 7 and is slidably connected to the mounting box 9.

[0068] The bottom of the mounting box 9 is fixedly connected to a telescopic tube 4, and a connecting post is fixedly connected inside the telescopic tube 4. The top of the connecting post is connected to the telescopic tube 4 through a first spring 5. A magnetic post 6 is provided inside the first spring 5. The magnetic post 6 is fixedly connected to the connecting post. The magnetic block 8 has the opposite magnetism to the magnetic block 8.

[0069] The drive mechanism includes a mounting cover 3, which is fixedly connected to a connecting column. A drive box is fixedly connected to the right side of the mounting cover 3. A second protective box 52 is fixedly connected to the drive box. A motor 51 is fixedly connected inside the second protective box 52. A rotating shaft 50 is fixedly connected to the power output shaft of the motor 51. The rotating shaft 50 passes through the drive box and is rotatably connected to the drive box. Two one-way components are provided inside the drive box.

[0070] The one-way component includes a first rotating tube 58, which is rotatably connected to the drive box. A first drive wheel 55 is fixedly connected to the first rotating tube 58. A toothed groove is opened through the first drive wheel 55. A first rotating column 56 is provided inside the first rotating tube 58. A first actuating piece 57 is fixedly connected to the first rotating column 56.

[0071] A second drive wheel 47 is provided on the left side of the first drive wheel 55. A connecting frame 48 is fixedly connected to the second drive wheel 47. The connecting frame 48 is fixedly connected to the rotating shaft 50. A second rotating column 44 is provided inside the second drive wheel 47. A second rotating tube 45 is fixedly connected to the second rotating column 44. The second rotating tube 45 is rotatably connected to the drive box. A second actuating piece 49 is fixedly connected to the second rotating column 44.

[0072] Multiple second fixing boxes 34 are fixedly connected to the mounting cover 3. A first fixing box 33 is fixedly connected between the multiple second fixing boxes 34. A drive shaft 54 ​​is rotatably connected to the first fixing box 33. A propeller 32 is fixedly connected to the drive shaft 54. A third pulley 46 is fixedly connected to both the drive shaft 54 ​​and the rotating tube located on the right side of the inner cavity of the drive box. The two third pulleys 46 are connected by a third connecting belt 53.

[0073] The mounting cover 3 has a groove, and a positioning block 42 is fixedly connected inside the groove. A reciprocating screw 41 is rotatably connected to the positioning block 42, and an auxiliary plate 43 is threadedly connected to the reciprocating screw 41. The auxiliary plate 43 is slidably connected to the mounting cover 3.

[0074] The top of the mounting cover 3 is fixedly connected to a first protective box 39, and a universal joint 37 is rotatably connected to the first protective box 39. The universal joint 37 passes through the drive box and is rotatably connected to the drive box.

[0075] The universal joint 37 is fixedly connected to a second pulley 38 at one end of the first protective box 39 and to the reciprocating screw 41. The two second pulleys 38 are connected by a second connecting belt 40. The universal joint 37 is fixedly connected to a first pulley 36 at one end inside the drive box and to the rotating tube located on the left side of the drive box cavity. The two first pulleys 36 are connected by a first connecting belt 35.

[0076] When the pull rope 15 is pulled, the pull rope 15 will also drive the magnetic block 8 to move. The magnetic block 8 will move to the top of the magnetic column 6, so that the magnetic block 8 will act on the magnetic column 6. The magnetic column 6 will drive the connecting column to stretch the telescopic tube 4, thereby causing the mounting cover 3 to move out of the storage box 1.

[0077] In this way, the motor 51 can be started by the waterproof switch installed on the second protective box 52. The forward rotation of the motor 51 will drive the rotating shaft 50 to rotate, which will drive the first rotating column 56 to rotate. The first rotating column 56 will drive the first drive wheel 55 to rotate through the first actuating piece 57. The first drive wheel 55 will drive the first rotating tube 58 to rotate. The first rotating tube 58 will drive the drive shaft 54 ​​to rotate through the third connecting belt 53 and the third pulley 46. The drive shaft 54 ​​will drive the propeller 32 to rotate. The propeller 32 provides power and can effectively move the folding airbag 22. The folding airbag 22 is fixed on the person and can move the person well, which can effectively facilitate the rescue and avoid the phenomenon that the rescued person loses strength and cannot swim back. It also saves the strength of the rescuers.

[0078] By controlling the motor 51 to reverse, the motor 51 drives the connecting frame 48 to rotate via the rotating shaft 50. The connecting frame 48 drives the second drive wheel 47 to rotate. The second drive wheel 47 will drive the second actuating plate 49 to rotate via the tooth groove, thereby driving the second rotating column 44 to rotate. The second rotating column 44 drives the second rotating tube 45 to rotate. The second rotating tube 45 drives the universal joint 37 to rotate via the first pulley 36 and the first connecting belt 35. The universal joint 37 drives the reciprocating screw 41 to rotate via the second connecting belt 40 and the second pulley 38. The reciprocating screw 41 drives the auxiliary plate 43 to move, thereby moving the auxiliary plate 43 out of the groove.

[0079] This effectively changes the area of ​​the upper part of the mounting cover 3, thereby creating an optimal flow environment through appropriate control or guidance of fluid flow, and thus improving the propulsion efficiency of the propeller 32.

[0080] 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. An underwater rescue device, comprising a storage box (1), characterized in that: The storage box (1) is provided with a top cover (2) on the top, and the bottom ends of the top cover (2) are fixedly connected to limit plates (19). An inflatable floating mechanism is located inside the top cover (2) and fixedly connected to the storage box (1). The inflatable floating mechanism is used to support the user's floating. An air supply mechanism is located inside the storage box (1) and threadedly connected to the storage box (1). The air supply mechanism is used to supply gas to the expansion and floating mechanism. An air guiding and positioning mechanism is located inside the storage box (1) and is fixedly connected to the storage box (1). The air guiding and positioning mechanism is used in conjunction with an air supply mechanism to fix the limiting plate (19). A moving mechanism located inside the storage box (1) is moved by a drive expansion floating mechanism; The driving mechanism is located to the left of the air guiding and positioning mechanism. The driving mechanism is fixedly connected to the storage box (1). The driving mechanism, together with the air guiding and positioning mechanism and the air supply mechanism, is used to adjust the position of the moving mechanism. The expansion and floating mechanism includes an air-gathering box (26), which is fixedly connected to the storage box (1). An air-gathering cover (23) is fixedly connected to the top of the air-gathering box (26). The air-gathering cover (23) is connected to the air-gathering box (26). Multiple connecting pipes (24) are fixedly connected to the air-gathering cover (23). A folding airbag (22) is fixedly connected to the connecting pipe (24). Multiple fixing ropes (25) are fixedly connected to the folding airbag (22). The gas supply mechanism includes a gas storage tank (10), which is threadedly connected to the storage box (1). A fixing ring (28) is fixedly connected to the gas storage tank (10), and a sealing plate (31) is inserted into the fixing ring (28). The top of the sealing plate (31) is fixedly connected to a top rod (14), the top rod (14) passes through the gas storage tank (10) and extends to the outside of the gas storage tank (10), the top rod (14) passes through the storage box (1) and is slidably connected to the storage box (1), the storage box (1) is provided with a through hole (12), the bottom of the sealing plate (31) is fixedly connected to a third spring (29), the bottom of the third spring (29) is fixedly connected to a positioning frame (30), and the positioning frame (30) is fixedly connected to the gas storage tank (10); The gas storage tank (10) is provided with a baffle (27) inside, and the baffle (27) is fixedly connected to the top rod (14); The air guiding and positioning mechanism includes an air guiding pipe (11), which is fixedly connected to the storage box (1) and communicates with the air gathering box (26). A guide pipe (21) is fixedly connected inside the air guiding pipe (11), and a sliding plate (13) is slidably connected inside the guide pipe (21). The top of the sliding plate (13) is connected to the guide pipe (21) through a fourth spring (20), and two pull ropes (15) are fixedly connected to the bottom of the sliding plate (13). A fixed tube (17) is fixedly connected to the right side of the air duct (11). A limit block (18) is slidably connected inside the fixed tube (17). The limit block (18) is connected to the fixed tube (17) through a second spring (16). A pull rope (15) located on the right side of the bottom of the slide plate (13) extends into the fixed tube (17) and is fixedly connected to the limit block (18). The limit block (18) is inserted into the limit plate (19). The third spring (29) has a greater elastic force than the second spring (16).

2. The underwater rescue equipment according to claim 1, characterized in that: The drive mechanism includes a mounting box (9), which is fixedly connected to the storage box (1). A slide rod (7) is slidably connected to the mounting box (9). The slide rod (7) passes through the air duct (11) and is slidably connected to the air duct (11). The slide rod (7) is fixedly connected to the pull rope (15). A magnet (8) is fixedly connected to the slide rod (7). The magnet (8) is slidably connected to the mounting box (9).

3. The underwater rescue equipment according to claim 2, characterized in that: The bottom of the mounting box (9) is fixedly connected to a telescopic tube (4), and a connecting column is fixedly connected inside the telescopic tube (4). The top of the connecting column is connected to the telescopic tube (4) through a first spring (5). A magnetic column (6) is provided inside the first spring (5). The magnetic column (6) is fixedly connected to the connecting column. The magnetic block (8) has opposite magnetism to the magnetic block (8).

4. The underwater rescue equipment according to claim 3, characterized in that: The drive mechanism includes a mounting cover (3), which is fixedly connected to a connecting column. A drive box is fixedly connected to the right side of the mounting cover (3). A second protective box (52) is fixedly connected to the drive box. A motor (51) is fixedly connected inside the second protective box (52). A rotating shaft (50) is fixedly connected to the power output shaft of the motor (51). The rotating shaft (50) passes through the drive box and is rotatably connected to the drive box. Two unidirectional components are provided inside the drive box.

5. The underwater rescue equipment according to claim 4, characterized in that: The unidirectional component includes a first rotating tube (58), which is rotatably connected to the drive box. A first drive wheel (55) is fixedly connected to the first rotating tube (58), and a toothed groove is provided through the first drive wheel (55). A first rotating column (56) is provided inside the first rotating tube (58), and a first actuating piece (57) is fixedly connected to the first rotating column (56). A second drive wheel (47) is provided on the left side of the first drive wheel (55). A connecting frame (48) is fixedly connected to the second drive wheel (47). The connecting frame (48) is fixedly connected to the rotating shaft (50). A second rotating column (44) is provided inside the second drive wheel (47). A second rotating tube (45) is fixedly connected to the second rotating column (44). The second rotating tube (45) is rotatably connected to the drive box. A second actuating piece (49) is fixedly connected to the second rotating column (44).

6. The underwater rescue equipment according to claim 5, characterized in that: Multiple second fixing boxes (34) are fixedly connected to the mounting cover (3). A first fixing box (33) is fixedly connected between the multiple second fixing boxes (34). A drive shaft (54) is rotatably connected to the first fixing box (33). A propeller (32) is fixedly connected to the drive shaft (54). A third pulley (46) is fixedly connected to both the drive shaft (54) and the rotating tube located on the right side of the inner cavity of the drive box. The two third pulleys (46) are connected by a third connecting belt (53).

7. The underwater rescue equipment according to claim 5, characterized in that: The mounting cover (3) has a groove, and a positioning block (42) is fixedly connected inside the groove. A reciprocating screw (41) is rotatably connected to the positioning block (42), and an auxiliary plate (43) is threadedly connected to the reciprocating screw (41). The auxiliary plate (43) is slidably connected to the mounting cover (3). The top of the mounting cover (3) is fixedly connected to a first protective box (39), and a universal joint (37) is rotatably connected to the first protective box (39). The universal joint (37) passes through the drive box and is rotatably connected to the drive box. The universal joint (37) is fixedly connected to a second pulley (38) at one end of the first protective box (39) and to the reciprocating screw (41). The two second pulleys (38) are connected by a second connecting belt (40). The universal joint (37) is fixedly connected to a first pulley (36) at one end inside the drive box and to the rotating tube located on the left side of the drive box cavity. The two first pulleys (36) are connected by a first connecting belt (35).