Helicopter underwater escape training equipment

By using an annular slide, floating box inclination mechanism, opening and closing mechanism and rotating mechanism in the helicopter underwater escape training equipment, the problem that existing equipment cannot effectively simulate multiple water inlet scenarios is solved, and more complex and real training effects are achieved.

CN119516859AInactive Publication Date: 2025-02-25CHINA ENERGY OCEAN TECH DEV CO LTD
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Patent Information

Application Number
CN202411936076.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-02-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing helicopter underwater escape training equipment cannot effectively simulate the various water inlet scenarios and complex emergencies after the helicopter lands on the water surface, resulting in limited training results.

Method used

A helicopter underwater escape training equipment is designed, using an annular slide and floating box inclination mechanism to simulate the situation where the helicopter enters water at the head or tail end, and increases the difficulty and complexity of training through the opening and closing mechanism and rotating mechanism.

Benefits of technology

It realizes the simulation of a variety of water inlet scenarios and complex situations in underwater escape training, improves the difficulty and effect of training, and enhances the students' adaptability and escape path selection ability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of training equipment, and discloses helicopter underwater escape training equipment which comprises a cabin body, an annular slide way is fixedly installed on the outer surface of the middle section of the cabin body, and a lifting appliance is installed on the annular slide way. By switching on a power supply of a waterproof motor mounted at the bottom of any buoyancy tank, the waterproof motor drives a transmission shaft to rotate, a hollow guide frame mounted on the outer surface of the transmission shaft rotates along with the transmission shaft, the hollow guide frame drives a sealing plate to move through a guide column slidably mounted in the hollow guide frame, and the sealing plate opens openings formed in the two sides of the corresponding buoyancy tank; one buoyancy tank is in a closed state, so that water can quickly enter the buoyancy tank after the buoyancy tank enters the water, and the other buoyancy tank which is still in a closed state floats upwards under the buoyancy of the water, so that the whole cabin body is in an inclined state after entering the water and is turned over in the inclined state, and the scene state that the helicopter enters the water at the head end or the tail end is simulated; therefore, the underwater escape ability of the trainee in different state environments can be trained.
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Description

Technical Field

[0001] The invention relates to the technical field of training equipment, and in particular to a helicopter underwater escape training device. Background Art

[0002] When a helicopter malfunctions while flying over water, it may need to make an emergency landing (or crash) on the water. After the aircraft crashes into the water, it will immediately immerse in the water, and then tilt, flip, and sink. At this time, the passengers or the pilot on the aircraft should escape from the cabin as soon as possible. Since the aircraft's sinking process is relatively short, its posture in the water is different, and the passengers are nervous and flustered when an accident occurs, it is difficult for the passengers to escape smoothly without professional training.

[0003] At present, there are not many types of underwater escape training equipment used at home and abroad. According to the available information, there are two types of training cabins: one is long and the other is spherical. Some of the long training cabins are barrel-shaped containers with one end open, with several seats placed inside, and doors and windows set on the two side walls according to the door and window structure of the helicopter, and the passengers enter the cabin from the open end; some are closed at both ends in the shape of a helicopter cockpit, with seats placed inside, and doors and windows set on the two side walls, and the passengers enter the cabin from the door. A slewing ring is set in the middle of the long training cabin, and the slewing hoist hangs on the slewing ring, and the training cabin is lifted into the pool and immersed in the water. After the brakes are released, the training cabin flips vertically around the center line of the slewing ring under the action of buoyancy.

[0004] Because the existing helicopter underwater escape training equipment can only flip the training cabin in the vertical direction around the center line of the turning ring when in use, it is difficult to simulate more complex and realistic emergency situations such as various water entry scenarios after the helicopter is forced to land on the water surface in real situations, resulting in limited training results. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a helicopter underwater escape training device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A helicopter underwater escape training device comprises a cabin, an annular slide is fixedly mounted on the outer surface of the middle section of the cabin, a sling is mounted on the annular slide, two escape doors are arranged on the outer surfaces of opposite sides of the cabin, two pontoons are respectively fixedly mounted on the bottom of the cabin on both sides of the annular slide, a tilting mechanism is separately mounted inside the two pontoons, a partition is fixedly mounted on the inner wall of the cabin near the bottom, a plurality of rows of seats are rotatably mounted on the upper surface of the partition via a rotating shaft, the rotating shaft passes through the lower surface of the partition and is fixedly mounted on the bottom of the seats, a locking mechanism for limiting the seats is mounted on the lower surface of the partition, and an opening and closing mechanism for opening and closing the escape door is mounted inside the cabin.

[0008] As a further solution of the present invention, the tilting mechanism includes two openings staggered on the outer surfaces of the two opposite sides of the pontoon, and sealing plates are slidably installed on the inner walls of the pontoon close to the openings, a transmission shaft is rotatably installed at the center position of the pontoon, and two hollow guide frames are symmetrically fixedly installed on the outer surface of the transmission shaft, a fixing plate is fixedly installed on the outer surface of the sealing plate close to the inner side of the pontoon, and a guide column matching the hollow guide frame is fixedly installed on the outer surface of the fixing plate away from the sealing plate, and the guide column is slidably installed on the inner wall of the hollow guide frame.

[0009] As a further solution of the present invention, the locking mechanism includes two support plates symmetrically fixedly installed on the lower surface of the partition, a worm is rotatably installed between the two support plates, a worm wheel is fixedly installed on the bottom end of the rotating shaft fixedly installed on the bottom of the seat, and the worm is meshed with the worm wheel.

[0010] As a further solution of the present invention, the opening and closing mechanism includes a door slidably mounted on the inner wall of the cabin body close to each escape door, an L-shaped plate is fixedly mounted on the bottom end of the door, two racks are slidably mounted on the bottom wall of the cabin body, the ends of the two L-shaped plates on the same side away from the door are fixedly mounted on the sides of the corresponding racks, a synchronization component is installed between the transmission shaft and the rack, and a rotation mechanism is provided between the two racks and the worm gear.

[0011] As a further solution of the present invention, the synchronization component includes a synchronization gear fixedly mounted on the top of the transmission shaft, and the outer surface of the rack close to the transmission shaft is evenly and fixedly mounted with a plurality of teeth matching the synchronization gear, and the synchronization gear is meshed with the teeth.

[0012] As a further solution of the present invention, the rotating mechanism includes a transmission gear movably mounted on the outer surface of the worm, the transmission gear is meshed with the rack, a moving component is provided between the transmission gear and the rack, and a coupling component is provided between the transmission gear and the worm.

[0013] As a further solution of the present invention, the coupling assembly includes a plurality of limit blocks evenly and fixedly installed on the outer surface of the worm in the circumferential direction, and the inner wall of the transmission gear is provided with limit grooves matching the plurality of limit blocks.

[0014] As a further solution of the present invention, the moving component includes a fixed tube fixedly mounted on the outer surface of an end of the transmission gear away from the worm, a butterfly wheel is fixedly mounted on the end of the fixed tube away from the transmission gear, a guide block is fixedly mounted on the side of the rack close to the butterfly wheel, a guide groove matching the butterfly wheel is formed on the upper surface of the guide block, the guide groove is composed of a section of oblique groove and a straight groove connected to each other, and the butterfly wheel is arranged inside the guide groove.

[0015] As a further solution of the present invention, a waterproof motor is fixedly installed at the bottom of the buoyancy box, and the output end of the waterproof motor passes through the bottom wall of the buoyancy box and is fixedly installed with the rotation center of the transmission shaft.

[0016] As a further solution of the present invention, the inner wall opening of the transmission gear close to the worm gear is a bell-mouth structure.

[0017] The beneficial effects of the present invention are:

[0018] 1. By connecting the power of the waterproof motor installed at the bottom of any pontoon, the waterproof motor drives the transmission shaft to rotate, so that the hollow guide frame installed on the outer surface of the transmission shaft rotates accordingly, and the hollow guide frame drives the sealing plate to move through the guide column installed with sliding inside, so that the sealing plate opens the openings opened on both sides of the corresponding pontoon, so that after the pontoon enters the water, water can quickly enter the pontoon, and the other pontoon that is still in a closed state will float upward due to the buoyancy of the water, so that the whole cabin is in an inclined state after entering the water, and flips over in the inclined state, simulating the scene of a helicopter entering the water at the head or tail end, so as to train trainees in underwater escape capabilities under different conditions;

[0019] 2. When one of the transmission shafts rotates, the two doors will be driven to move through the opening and closing mechanism, so that one of the doors on one side closes the escape door that is normally open in the initial state, and the other door opens the escape door that is normally closed in the initial state, so that trainees can escape from escape doors in different positions, increase the difficulty and challenge of training, cultivate trainees' adaptability, and let trainees learn to respond flexibly and find the most effective escape route;

[0020] 3. When the rack moves, the rotating mechanism drives the worm to rotate, so that the worm drives the worm wheel meshing with it to rotate, and the worm wheel drives the seat to rotate 180° through the rotating shaft, so that the trainees change their original sitting orientation, so as to train the trainees' adaptability after turning, further increase the difficulty of training, and increase the complexity of the escape training process, so that after more difficult training, the trainees can adapt to and become familiar with the escape process in different environments, so as to escape more calmly and confidently in real situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a helicopter underwater escape training device proposed by the present invention;

[0022] Figure 2 A schematic diagram of the internal structure of a helicopter underwater escape training device proposed by the present invention;

[0023] Figure 3 A schematic diagram of the bottom structure of a helicopter underwater escape training device proposed by the present invention;

[0024] Figure 4 A schematic diagram of the internal structure of a buoyancy tank for helicopter underwater escape training equipment proposed by the present invention;

[0025] Figure 5 A schematic diagram of the internal structure of a cabin of a helicopter underwater escape training device proposed by the present invention;

[0026] Figure 6 A schematic diagram of the door structure of a helicopter underwater escape training device proposed by the present invention;

[0027] Figure 7 A schematic diagram of the rack structure of a helicopter underwater escape training device proposed by the present invention;

[0028] Figure 8 A schematic diagram of a worm structure of a helicopter underwater escape training device proposed by the present invention;

[0029] Fig. 9 A schematic diagram of the guide block structure of a helicopter underwater escape training device proposed by the present invention;

[0030] Fig.10 A schematic diagram of the door and rack installation structure of a helicopter underwater escape training device proposed by the present invention;

[0031] Fig.11 for Figure 7 A magnified view of the structure in the middle.

[0032] In the figure: 1. Cabin; 2. Annular slide; 3. Hoist; 4. Float; 5. Partition; 6. Seat; 7. Escape door; 8. Opening; 9. Drive shaft; 10. Sealing plate; 11. Fixed plate; 12. Guide column; 13. Hollow guide frame; 14. Worm gear; 15. Support plate; 16. Worm; 17. Cabin door; 18. Rack; 19. Gear; 20. Synchronous gear; 21. Transmission gear; 22. Fixed pipe; 23. Butterfly wheel; 24. Limit block; 25. Guide block; 26. Guide groove; 27. L-shaped plate; 28. Waterproof motor. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] See attached Figure 1 -Attached Fig.11 A helicopter underwater escape training device comprises a cabin 1, an annular slide 2 is fixedly installed on the outer surface of the middle section of the cabin 1, a sling 3 is installed on the annular slide 2, a clamping cylinder is installed in the sling 3, a clamping head for pressing against the annular slide 2 is installed at the telescopic end of the clamping cylinder, two escape doors 7 are provided on the outer surfaces of the cabin 1 on opposite sides, and escape windows are also provided on the outer surfaces of the cabin 1 on opposite sides; two buoyancy tanks 4 are fixedly installed on the bottom of the cabin 1 on both sides of the annular slide 2, and tilting machines are separately installed inside the two buoyancy tanks 4. A partition 5 is fixedly installed on the inner wall of the cabin 1 near its bottom, and multiple rows of seats 6 are rotatably installed on the upper surface of the partition 5 through a rotating shaft. Safety belts are installed on the seats 6. The rotating shaft passes through the lower surface of the partition 5 and is fixedly installed on the bottom of the seats 6. A locking mechanism for limiting the seat 6 is installed on the lower surface of the partition 5. An opening and closing mechanism for opening and closing the escape door 7 is installed inside the cabin 1. A waterproof motor 28 is fixedly installed on the bottom of the buoyancy box 4, and the output end of the waterproof motor 28 passes through the bottom wall of the buoyancy box 4 and is fixedly installed with the rotation center of the transmission shaft 9.

[0036] In this embodiment, the tilting mechanism includes two openings 8 that are staggered on the outer surfaces of the two opposite sides of the pontoon 4, and the inner walls of the pontoon 4 near the openings 8 are slidably installed with sealing plates 10. A transmission shaft 9 is rotatably installed at the center position of the pontoon 4, and two hollow guide frames 13 are symmetrically fixedly installed on the outer surface of the transmission shaft 9. A fixing plate 11 is fixedly installed on the outer surface of the sealing plate 10 near the inner side of the pontoon 4, and a guide column 12 matching the hollow guide frame 13 is fixedly installed on the outer surface of the fixing plate 11 away from the sealing plate 10. The guide column 12 is slidably installed on the inner wall of the hollow guide frame 13.

[0037] When in use, by connecting the power of the waterproof motor 28 installed at the bottom of any pontoon 4, the waterproof motor 28 drives the transmission shaft 9 to rotate, and the hollow guide frame 13 installed on the outer surface of the transmission shaft 9 rotates accordingly, so that the hollow guide frame 13 drives the sealing plate 10 to move through the guide column 12 slidably installed inside it, so that the sealing plate 10 opens the openings 8 opened on both sides of the corresponding pontoon 4, so that after the pontoon 4 enters the water, water can quickly enter this pontoon 4, and the other pontoon 4 that is still in a closed state will float upward due to the buoyancy of the water, so that the cabin 1 as a whole is in a tilted state after entering the water, and flips over in the tilted state, simulating the situation of a helicopter entering the water at the head or tail end, so as to train students to have underwater escape capabilities in different environments.

[0038] In this embodiment, the locking mechanism includes two support plates 15 symmetrically fixedly installed on the lower surface of the partition 5, a worm 16 is rotatably installed between the two support plates 15, a worm wheel 14 is fixedly installed at the bottom end of the rotating shaft fixedly installed at the bottom of the seat 6, and the worm 16 is meshed with the worm wheel 14.

[0039] In this embodiment, the opening and closing mechanism includes a door 17 slidably mounted on the inner wall of the cabin 1 on one side close to each escape door 7, an L-shaped plate 27 is fixedly mounted on the bottom end of the door 17, two racks 18 are slidably mounted on the bottom wall of the cabin 1, and the ends of the two L-shaped plates 27 on the same side away from the door 17 are fixedly mounted on the sides of the corresponding racks 18, a synchronization component is installed between the transmission shaft 9 and the rack 18, a rotating mechanism is provided between the two racks 18 and the worm 16, the synchronization component includes a synchronization gear 20 fixedly mounted on the top of the transmission shaft 9, and a plurality of latch teeth 19 matching the synchronization gear 20 are evenly and fixedly mounted on the outer surface of the rack 18 close to the transmission shaft 9, and the synchronization gear 20 is meshed with the latch teeth 19.

[0040] When one of the transmission shafts 9 rotates, the synchronous gear 20 will be driven to rotate, so that the synchronous gear 20 drives the engaging tooth 19 to rotate, so that the tooth 19 drives one of the racks 18 to move left or right, so that one of the racks 18 drives the two doors 17 to move through the L-shaped plate 27 installed on its side, so that one of the doors 17 on one side closes the escape door 7 which is normally open in the initial state, and the other door 17 opens the escape door 7 which is normally closed in the initial state, so that trainees can escape from the escape doors 7 in different positions, which increases the difficulty and challenge of the training, can cultivate the trainees' adaptability, and let the trainees learn to respond flexibly and find the most effective escape route.

[0041] In this embodiment, the rotating mechanism includes a transmission gear 21 movably mounted on the outer surface of the worm 16, the transmission gear 21 is meshed with the rack 18, a moving component is provided between the transmission gear 21 and the rack 18, and a combining component is provided between the transmission gear 21 and the worm 16. The combining component includes a plurality of limit blocks 24 evenly and fixedly mounted on the outer surface of the worm 16 in the circumferential direction. The inner wall of the transmission gear 21 close to the worm 16 is a bell mouth structure, and the inner wall of the transmission gear 21 is provided with limit grooves matching the plurality of limit blocks 24. The moving component includes a fixed tube 22 fixedly mounted on the outer surface of one end of the transmission gear 21 away from the worm 16, and a butterfly wheel 23 is fixedly mounted on the end of the fixed tube 22 away from the transmission gear 21. A guide block 25 is fixedly mounted on the side of the rack 18 close to the butterfly wheel 23. A guide groove 26 matching the butterfly wheel 23 is provided on the upper surface of the guide block 25. The guide groove 26 is composed of a section of an oblique groove and a straight groove connected to each other, and the butterfly wheel 23 is arranged inside the guide groove 26.

[0042] When the rack 18 moves, it will drive the guide block 25 installed on its side to move, and drive the transmission gear 21 meshing with it to rotate, so that the guide groove 26 opened on the guide block 25 can push the transmission gear 21 to the direction of the limit block 24 through the butterfly wheel 23 and the fixed tube 22, so that the limit groove opened on the inner wall of the transmission gear 21 is engaged with the limit block 24, so that the transmission gear 21 can drive the worm 16 to rotate, so that the worm 16 can drive the worm wheel 14 meshing with it to rotate, and the worm wheel 14 drives the seat 6 to rotate 180° through the rotating shaft, so that the trainee changes the original sitting posture, so as to train the trainee's adaptability after turning, further increase the training difficulty, and increase the complexity of the escape training process, so that after more difficult training, the trainee can adapt to and be familiar with the escape process in different environments, so as to escape more calmly and confidently in real situations.

[0043] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: when in use, the sling 3 is connected to the lifting equipment, and the cabin 1 is lifted as a whole by the lifting equipment;

[0044] During the training, the trainee enters the cabin 1, sits on the seat 6 and fastens the safety belt. The cabin 1 is slowly and completely sunk into the swimming pool through the lifting equipment, and the clamping cylinder inside the lifting device 3 is released to make the clamping head away from the annular slide 2. Since two buoyancy tanks 4 are installed at the bottom of the cabin 1, the two buoyancy tanks 4 are turned upward under the action of buoyancy, so that the cabin 1 is turned over as a whole. After the turning over is completed, the trainee swims out of the water from the escape door 7 or escape window opened on both sides of the cabin 1, so as to achieve the underwater escape training effect;

[0045] After the training is completed, the cabin 1 is hoisted as a whole by the hoisting equipment, so that the two buoys 4 installed at the bottom of the cabin 1 float to the surface, and the cabin 1 is turned over and reset as a whole under the action of its gravity, and the clamping cylinder in the hoist 3 drives the clamp to move and clamp the annular slide 2 to achieve the fixing effect of the cabin 1;

[0046] When the intensity of underwater escape training needs to be strengthened, the waterproof motor 28 installed at the bottom of any pontoon 4 is powered on, so that the waterproof motor 28 drives the transmission shaft 9 to rotate, and the hollow guide frame 13 installed on the outer surface of the transmission shaft 9 rotates accordingly, so that the hollow guide frame 13 drives the sealing plate 10 to move through the guide column 12 slidably installed inside it, so that the sealing plate 10 opens the openings 8 opened on both sides of the corresponding pontoon 4, so that after the pontoon 4 enters the water, water can quickly enter this pontoon 4, and the other pontoon 4 that is still in a closed state will float upward due to the buoyancy of the water, so that the cabin 1 as a whole is in a tilted state after entering the water, and flips over in the tilted state, simulating the situation of a helicopter entering the water at the head end or the tail end, so as to train trainees in underwater escape capabilities under different conditions and environments;

[0047] When one of the transmission shafts 9 rotates, the synchronous gear 20 is driven to rotate, so that the synchronous gear 20 drives the engaging tooth 19 to rotate, so that the tooth 19 drives one of the racks 18 to move left or right, so that one of the racks 18 drives the two hatches 17 to move through the L-shaped plate 27 installed on its side, so that one of the hatches 17 on one side closes the escape door 7 that is normally open in the initial state, and the other hatch 17 opens the escape door 7 that is normally closed in the initial state, so that the trainees can escape from the escape doors 7 at different positions, increase the difficulty and challenge of the training, cultivate the trainees' adaptability, and let the trainees learn to respond flexibly and find the most effective escape path;

[0048] When the rack 18 moves, it will drive the guide block 25 installed on its side to move, and drive the transmission gear 21 meshing with it to rotate, so that the guide groove 26 opened on the guide block 25 can push the transmission gear 21 to the direction of the limit block 24 through the butterfly wheel 23 and the fixed tube 22, so that the limit groove opened on the inner wall of the transmission gear 21 is engaged with the limit block 24, so that the transmission gear 21 can drive the worm 16 to rotate, so that the worm 16 can drive the worm wheel 14 meshing with it to rotate, and the worm wheel 14 drives the seat 6 to rotate 180° through the rotating shaft, so that the trainee changes the original sitting posture, so as to train the trainee's adaptability after turning, further increase the training difficulty, and increase the complexity of the escape training process, so that after more difficult training, the trainee can adapt to and be familiar with the escape process in different environments, so as to escape more calmly and confidently in real situations.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A helicopter underwater escape training device, comprising a cabin (1), an annular slideway (2) is fixedly mounted on the outer surface of the middle section of the cabin (1), a sling (3) is mounted on the annular slideway (2), two escape doors (7) are provided on the outer surfaces of opposite sides of the cabin (1), and the device is characterized in that: The cabin (1) is provided with two buoyancy boxes (4) fixedly mounted at the bottom of both sides of the annular slideway (2), and the interiors of the two buoyancy boxes (4) are individually provided with tilting mechanisms. The cabin (1) is provided with a partition (5) fixedly mounted on the inner wall near the bottom thereof, and a plurality of rows of seats (6) are rotatably mounted on the upper surface of the partition (5) via a rotating shaft, and the rotating shaft passes through the lower surface of the partition (5) and is fixedly mounted on the bottom of the seats (6). A locking mechanism for limiting the position of the seats (6) is mounted on the lower surface of the partition (5), and an opening and closing mechanism for opening and closing the escape door (7) is mounted inside the cabin (1).

2. A helicopter underwater escape training device according to claim 1, characterized in that: The tilting mechanism comprises two openings (8) staggeredly arranged on the outer surfaces of opposite sides of the buoyancy box (4); the inner walls of the buoyancy box (4) close to the openings (8) are slidably mounted with sealing plates (10); a transmission shaft (9) is rotatably mounted at the center of the buoyancy box (4); two hollow guide frames (13) are symmetrically fixedly mounted on the outer surface of the transmission shaft (9); a fixing plate (11) is fixedly mounted on the outer surface of the sealing plate (10) close to the inside of the buoyancy box (4); a guide column (12) matching the hollow guide frame (13) is fixedly mounted on the outer surface of the fixing plate (11) away from the sealing plate (10); and the guide column (12) is slidably mounted on the inner wall of the hollow guide frame (13).

3. A helicopter underwater escape training device according to claim 2, characterized in that: The locking mechanism comprises two support plates (15) symmetrically fixedly mounted on the lower surface of the partition (5); a worm (16) is rotatably mounted between the two support plates (15); a worm wheel (14) is fixedly mounted at the bottom end of a rotating shaft fixedly mounted at the bottom of the seat (6); and the worm (16) is meshed with the worm wheel (14).

4. The helicopter underwater escape training equipment according to claim 3, characterized in that: The opening and closing mechanism comprises a door (17) slidably mounted on the inner wall of a cabin (1) close to each escape door (7); an L-shaped plate (27) is fixedly mounted on the bottom end of the door (17); two racks (18) are slidably mounted on the bottom wall of the cabin (1); one end of two L-shaped plates (27) on the same side away from the door (17) is fixedly mounted on the side of the corresponding rack (18); a synchronizing assembly is mounted between the transmission shaft (9) and the rack (18); and a rotating mechanism is provided between the two racks (18) and the worm (16).

5. The helicopter underwater escape training equipment according to claim 4, characterized in that: The synchronization component comprises a synchronization gear (20) fixedly mounted on the top end of the transmission shaft (9); a plurality of latching teeth (19) matching the synchronization gear (20) are evenly fixedly mounted on the outer surface of the rack (18) on the side close to the transmission shaft (9); and the synchronization gear (20) meshes with the latching teeth (19).

6. The helicopter underwater escape training equipment according to claim 5, characterized in that: The rotating mechanism comprises a transmission gear (21) movably mounted on the outer surface of the worm (16); the transmission gear (21) is meshed with a rack (18); a moving component is provided between the transmission gear (21) and the rack (18); and a coupling component is provided between the transmission gear (21) and the worm (16).

7. The helicopter underwater escape training equipment according to claim 6, characterized in that: The coupling assembly comprises a plurality of limit blocks (24) which are evenly fixedly mounted on the outer surface of the worm (16) in the circumferential direction, and the inner wall of the transmission gear (21) is provided with limit grooves which match the plurality of limit blocks (24).

8. The helicopter underwater escape training equipment according to claim 7, characterized in that: The moving assembly comprises a fixed tube (22) fixedly mounted on the outer surface of one end of the transmission gear (21) away from the worm (16); a butterfly wheel (23) is fixedly mounted on the end of the fixed tube (22) away from the transmission gear (21); a guide block (25) is fixedly mounted on the side of the rack (18) close to the butterfly wheel (23); a guide groove (26) matching the butterfly wheel (23) is formed on the upper surface of the guide block (25); the guide groove (26) is composed of a section of an oblique groove and a straight groove connected to each other; and the butterfly wheel (23) is arranged inside the guide groove (26).

9. The helicopter underwater escape training equipment according to claim 2, characterized in that: A waterproof motor (28) is fixedly mounted on the bottom of the buoyancy box (4); the output end of the waterproof motor (28) passes through the bottom wall of the buoyancy box (4) and is fixedly mounted to the rotation center of the transmission shaft (9).

10. The helicopter underwater escape training equipment according to claim 6, characterized in that: The inner wall opening of the transmission gear (21) close to the worm (16) is a bell-mouth structure.