A high-efficiency lifesaving device for marine vessels

Abstract

This invention relates to the field of marine lifesaving technology, specifically disclosing a high-efficiency lifesaving device for marine navigation, including a lifesaver slide; a life raft, a balancing component located on the side of the life raft away from the lifesaver slide, and a detection component located inside the lifesaver slide. This high-efficiency lifesaving device for marine navigation indirectly determines the weight and impact kinetic energy by detecting the passenger's descent speed through the detection component. Simultaneously, the balancing component increases the water load on the side of the life raft away from the lifesaver slide, achieving adaptive adjustment where the faster the speed, the greater the counterweight water volume. This counteracts the lateral tilting force generated by passengers of different weights falling, prevents disorderly shift of the life raft's center of gravity, alleviates swaying and resonance problems under strong winds and waves, and reduces the risk of capsizing and overturning of the life raft when passengers of different weights fall along the lifesaver slide.

Description

Technical Field

[0001] This invention relates to the field of marine lifesaving device technology, specifically to a high-efficiency marine lifesaving device. Background Technology

[0002] Marine lifesaving equipment refers to various emergency equipment equipped on ships during navigation to ensure the safety of crew and passengers in the event of sudden accidents such as collisions, grounding, fires, and sinking. It generally includes three categories: personal lifesaving equipment, such as life jackets, life rings, and thermal life suits; group evacuation equipment, such as lifeboats, inflatable life rafts, and life buoys; and auxiliary support systems, such as personal locator beacons, emergency communication equipment, and automatic release devices.

[0003] When using existing mass evacuation life rafts, the crew presses a control button, the storage box door opens automatically, the slide is pulled out and begins to inflate, the slide extends from the deck to the sea surface, and the life raft inflates and floats at the same time. Passengers slide down one by one and directly enter the life raft. Once the life raft is full, it is disconnected from the hull and drifts away from the danger zone. It can safely evacuate the most people to the sea surface life raft in the shortest time and is the core guarantee of modern maritime safety.

[0004] However, in severe sea conditions such as strong winds and high waves, the life rafts are already constantly rolling and pitching. The impact of a passenger falling will further cause the life raft to sway. Furthermore, as passengers of significantly different weights fall in one after another, the life raft's center of gravity will rapidly and irregularly tilt towards the heavier side, resonating with the rolling of the waves. This uncontrolled swaying will cause extreme panic among passengers, leading to scrambling, pushing, and crowding, further disrupting the evacuation order and increasing secondary injuries and fatalities not caused by sea conditions. Therefore, we propose a highly efficient life-saving device for ship navigation. Summary of the Invention

[0005] The purpose of this invention is to provide a highly efficient life-saving device for ships, in order to solve the problem mentioned in the background art that uncontrolled swaying can cause passengers to panic, resulting in scrambling, pushing, and crowding, further disrupting the evacuation order and amplifying secondary casualties caused by factors other than sea conditions.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency life-saving device for ship navigation, comprising two life-saving slides; and further comprising multiple life rafts arranged in an array, wherein the top of one life raft is connected to the life-saving slide; The balancing component is located on the side of the life raft away from the life slide. When a passenger falls into the life raft, the balancing component simultaneously increases the water load on the side of the life raft away from the life slide. The detection component is located inside the life raft and is connected to the balancing component. The detection component detects the sliding speed of passengers in the life raft, and the faster the passengers slide, the greater the increase in water load on the side of the life raft away from the life raft by the balancing component.

[0007] The balancing assembly includes a water-carrying bladder located on the side of the life raft away from the rescue slide. A drain pipe is connected to the outside of the water-carrying bladder, and the drain pipe runs through the life raft and connects to the outside. A control device for controlling the connection of the drain pipe is provided at the end of the drain pipe near the water-carrying bladder. Two sliding columns are fixedly connected to the inner wall of the life raft, and the two sliding columns are respectively connected to two rescue slides. Two buffer airbags are fixedly connected inside the life raft. One-way air intake valves are installed on the surface of the buffer airbags. The buffer airbags are located inside the sliding columns. A filling device for filling the water-carrying bladder is provided between the buffer airbags and the water-carrying bladder.

[0008] The bottom of the water-carrying bladder is tilted towards the drain pipe, and the end of the drain pipe away from the water-carrying bladder is above the water surface.

[0009] The control component includes a sealing plug that is slidably and sealingly connected to the drain pipe. Connecting rods are fixedly connected to both sides of the sealing plug. The connecting rods are slidably connected to the inner wall of the drain pipe. A spring plate is fixedly connected to the end of the connecting rod away from the sealing plug. The spring plate is fixedly connected to the inner wall of the drain pipe.

[0010] The sealing plug is tapered at the end near the drain pipe.

[0011] The filling component includes an air supply pipe connected to the buffer airbag. The ends of the two air supply pipes away from the buffer airbag are connected to the water-carrying bladder. The middle of the air supply pipe is a constriction section, and the bottom of the constriction section is connected to a water suction pipe. The end of the water suction pipe away from the air supply pipe is located at the bottom of the life raft.

[0012] The detection component includes a trigger airbag and a termination airbag located on the inner wall of the rescue slide. The trigger airbag and the termination airbag are distributed along the axial direction of the rescue slide. The trigger airbag is located above the termination airbag. An extrusion member is provided on the outside of the constriction section of the air supply pipe to adjust the extrusion force on the constriction section of the air supply pipe according to the time interval between the trigger airbag and the termination airbag being triggered.

[0013] The compression component includes a compression air ring. The inner side of the compression air ring is located outside the constriction section of the air supply pipe. The outer side of the compression air ring is fixed to the inner wall of the life raft. The side of the compression air ring near the constriction section is made of rubber. A connecting box is connected to the outer side of the compression air ring. An inflation component for adjusting the air intake is provided on the inner wall of the connecting box. The inflation component is connected to the trigger airbag and the termination airbag respectively.

[0014] The inflatable component includes an air inlet pipe 1 connected to the connecting box. The end of the air inlet pipe 1 away from the connecting box is connected to the trigger airbag. A sealing plate is slidably sealed to the inner wall of the connecting box. A return spring is fixedly connected to the top of the sealing plate. Two support plates are fixedly connected to the inner wall of the connecting box. The end of the return spring away from the sealing plate is fixed to the support plate. An air inlet pipe 2 is connected to the top of the connecting box. The air inlet pipe 2 is connected to the termination airbag. Two one-way valves are installed on the inner wall of each support plate.

[0015] Among them, the two check valves in the same support plate have opposite flow directions. The allowed flow direction of one check valve is to flow into the connecting box, and the allowed flow direction of the remaining check valve is to flow out of the connecting box. The inner diameter of the check valve flowing out of the connecting box is smaller than the inner diameter of the check valve flowing into the connecting box.

[0016] The present invention has at least the following beneficial effects: In use, this application uses a detection component to detect the passenger's descent speed, indirectly determining their weight and impact kinetic energy. A balancing component simultaneously increases the water load on the side of the life raft furthest from the rescue slide, achieving adaptive adjustment where the faster the speed, the greater the counterweight water volume. This counteracts the lateral tilting force generated by passengers of different weights falling, preventing disorderly shifting of the life raft's center of gravity, mitigating swaying and resonance issues under strong winds and waves, and reducing the risk of capsizing or overturning when passengers of different weights fall along the rescue slide. Furthermore, the balancing component only fills with water to form a counterweight at the moment of passenger fall and automatically drains water after the impact, ensuring instantaneous balance without continuously increasing the life raft's load. This avoids problems such as excessive draft leading to seawater backflow and decreased buoyancy, maintaining the stability of the raft's foundation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a side sectional view of the rescue slide structure of the present invention; Figure 3 This is a top view of the life raft structure of the present invention; Figure 4 This is a schematic diagram of the main cross-sectional structure of the life raft of the present invention; Figure 5 for Figure 4 Enlarged diagram of area A in the middle; Figure 6 for Figure 4 Enlarged diagram of area B in the middle; Figure 7 This is a schematic diagram of the main cross-sectional structure of the connecting box of the present invention.

[0018] In the diagram: 1. Lifeline slide; 2. Life raft; 3. Balancing assembly; 30. Water bladder; 31. Drain pipe; 32. Control unit; 33. Sliding column; 34. Buffer airbag; 35. One-way air intake valve; 36. Filler; 37. Sealing plug; 38. Connecting rod; 39. Spring plate; 310. Air supply pipe; 311. Contraction section; 312. Water suction pipe; 4. Detection assembly; 40. Trigger airbag; 41. Termination airbag; 42. Squeezing component; 43. Squeezing air ring; 44. Connecting box; 45. Inflating component; 46. Air intake pipe one; 47. Sealing plate; 48. Return spring; 49. Support plate; 410. Air intake pipe two; 411. One-way valve. Detailed Implementation

[0019] Please see Figures 1 to 7 This invention provides a technical solution: a high-efficiency life-saving device for ship navigation, comprising two life-saving slides 1; and multiple life-saving rafts 2 arranged in an array, with the top of one life-saving raft 2 connected to the two life-saving slides 1; a balancing component 3 located on the side of the life-saving raft 2 away from the life-saving slides 1, which simultaneously increases the water load on the side of the life-saving raft 2 away from the life-saving slides 1 when a passenger falls into the life-saving raft 2; and a detection component 4 located inside the life-saving slides 1 and connected to the balancing component 3, which detects the sliding speed of the passenger within the life-saving slides 1, and the faster the passenger's sliding speed, the greater the increase in water load on the side of the life-saving raft 2 away from the life-saving slides 1 by the balancing component 3.

[0020] In the event of a ship's emergency, the crew triggers a control button, causing life slide 1 to inflate and extend to the sea surface. Multiple life rafts 2, arranged in an array, inflate simultaneously and float on the surface. Passengers slide down life slide 1 in sequence. A detection component 4 detects the passengers' descent speed, indirectly determining their weight and impact kinetic energy. A balancing component 3 simultaneously increases the water load on the side of life rafts 2 furthest from life slide 1, and adds water to create counterweight at the moment of impact. After the impact, the water is automatically drained, ensuring instantaneous balance without continuously increasing the load on life rafts 2 and preventing water loss. To address the issues of seawater backflow and decreased buoyancy caused by excessive water depth, the system maintains the stability of the raft foundation and achieves adaptive adjustment by increasing the counterweight water volume as the speed increases. This counteracts the lateral tilting force generated by passengers of different weights falling, prevents disorderly shift of the center of gravity of life raft 2, alleviates swaying and resonance problems under strong winds and waves, and reduces the risk of life raft 2 capsizing or overturning when passengers of different weights fall along life raft 1. After passengers land safely in life raft 2, they can enter other life rafts 2 through the raft doors of life raft 2. Once life raft 2 is full, it detaches and sails away from the danger zone, continuously completing the group evacuation operation.

[0021] The balancing component 3 includes a water-carrying bladder 30, which is initially in a deflated state. The water-carrying bladder 30 is located on the side of the life raft 2 away from the life-saving slide 1. A drain pipe 31 is connected to the outside of the water-carrying bladder 30. The drain pipe 31 passes through the life raft 2 and connects to the outside. A control component 32 for controlling the connection of the drain pipe 31 is provided at the end of the drain pipe 31 near the water-carrying bladder 30. Two sliding columns 33 are fixedly connected to the inner wall of the life raft 2. The two sliding columns 33 are respectively connected to the two life-saving slides 1. Two buffer airbags 34 are fixedly connected inside the life raft 2. A one-way air inlet valve 35 is installed on the surface of the buffer airbag 34. The buffer airbag 34 is located inside the sliding column 33. A filling component 36 for filling the water-carrying bladder 30 with water is provided between the buffer airbag 34 and the water-carrying bladder 30. The bottom of the water-carrying bladder 30 is tilted towards the drain pipe 31. The end of the drain pipe 31 away from the water-carrying bladder 30 is above the water surface.

[0022] When in use, the passenger falls to the end of the slide column 33 and squeezes the buffer airbag 34. After the buffer airbag 34 is squeezed, it triggers the filling component 36. The filling component 36 causes the airflow to carry seawater into the water-carrying bladder 30. After the high-speed gas enters the water-carrying bladder 30, it triggers the control component 32, which closes the drain pipe 31. The larger the amount of counterweight water on the side of the life raft 2 away from the slide, the more the instantaneous counterweight can counteract the side tilting force of the fall and suppress the swaying of the life raft 2. After the passenger leaves the slide column 33, the cushioning airbag 34 is inflated and rebounds through the one-way air intake valve 35. After the gas does not impact the control component 32, the control component 32 releases the seal on the drain pipe 31. Combined with the inclined structure at the bottom of the water-carrying bladder 30, the seawater inside the bladder is quickly discharged to the outside through the drain pipe 31. There is no water residue, the counterweight is automatically released, and the life raft 2 returns to its initial lightweight state, avoiding the reduction of buoyancy and stability due to continuous load, waiting for the next passenger to slide in and repeat the above balancing process.

[0023] The control component 32 includes a sealing plug 37 that is slidably and sealingly connected to the drain pipe 31. Connecting rods 38 are fixedly connected to both sides of the sealing plug 37. The connecting rods 38 are slidably connected to the inner wall of the drain pipe 31. A spring plate 39 is fixedly connected to the end of the connecting rod 38 away from the sealing plug 37. The spring plate 39 is fixedly connected to the inner wall of the drain pipe 31. The end of the sealing plug 37 near the drain pipe 31 is tapered.

[0024] When the gas discharged from the buffer airbag 34 enters the water-carrying bag 30, the gas impacts the sealing plug 37 at the end of the drain pipe 31. The sealing plug 37 is inserted into the drain pipe 31 to complete the sealing of the drain pipe 31. The sealing plug 37 pushes the connecting rod 38 to slide on the inner wall of the drain pipe 31, and the connecting rod 38 compresses the spring plate 39. After the passenger leaves the slide column 33, no more gas enters the water-carrying bladder 30. The compressed spring plate 39 pushes the connecting rod 38 to move. The connecting rod 38 pushes the sealing plug 37 to slide out of the drain pipe 31. Combined with the inclined structure at the bottom of the water-carrying bladder 30, the seawater inside the bladder is quickly discharged to the outside through the drain pipe 31.

[0025] The filling component 36 includes an air supply pipe 310 connected to the buffer airbag 34. The ends of the two air supply pipes 310 away from the buffer airbag 34 are connected to the water-carrying bag 30. The middle part of the air supply pipe 310 is a constriction section 311. The bottom of the constriction section 311 is connected to a water suction pipe 312. The end of the water suction pipe 312 away from the air supply pipe 310 is located at the bottom of the life raft 2.

[0026] After the buffer airbag 34 is compressed, the internal gas is transported to the water-carrying bag 30 through the air supply pipe 310. When the airflow passes through the contraction section 311 of the air supply pipe 310, the flow velocity increases sharply due to the smaller pipe diameter. According to Bernoulli's principle, the pressure at the contraction section 311 is significantly reduced, forming a negative pressure. The external seawater is then quickly drawn into the water-carrying bag 30 through the water suction pipe 312.

[0027] The detection component 4 includes a trigger airbag 40 and a stop airbag 41 located on the inner wall of the rescue slide 1. The trigger airbag 40 and the stop airbag 41 are distributed along the axial direction of the rescue slide 1. The trigger airbag 40 is located above the stop airbag 41. An extrusion member 42 is provided on the outside of the constriction section 311 of the air supply pipe 310 to adjust the extrusion force on the constriction section 311 of the air supply pipe 310 according to the time interval between the trigger airbag 40 and the stop airbag 41 being triggered.

[0028] When a passenger slides down the rescue slide 1, the trigger airbag 40 inside the rescue slide 1 is first squeezed. The gas inside the trigger airbag 40 enters the squeezing member 42. After the squeezing member 42 expands, it squeezes the constriction section 311 of the air supply pipe 310. When the passenger leaves the airbag 40, the gas inside the compression member 42 flows back into the airbag 40. When the termination airbag 41 is squeezed, the gas inside the termination airbag 41 enters the squeezing member 42, and the squeezing member 42 no longer inflates the trigger airbag 40. After the passenger leaves the termination airbag 41, the compression member 42 slowly inflates the termination airbag 41, which reduces the rebound speed of the trigger airbag 40. As a result, when the passenger compresses the buffer airbag 34, the inner diameter of the constriction section 311 of the air supply pipe 310 is reduced by the compression member 42.

[0029] The compression component 42 includes a compression air ring 43. The inner side of the compression air ring 43 is located outside the constriction section 311 of the air supply pipe 310. The outer side of the compression air ring 43 is fixed to the inner wall of the life raft 2. The side of the compression air ring 43 near the constriction section 311 is made of rubber. A connecting box 44 is connected to the outer side of the compression air ring 43. An inflation component 45 for adjusting the air intake is provided on the inner wall of the connecting box 44. The inflation component 45 is connected to the trigger airbag 40 and the termination airbag 41 respectively.

[0030] The inflatable component 45 includes an air inlet pipe 46 communicating with the connecting box 44. The end of the air inlet pipe 46 away from the connecting box 44 is connected to the trigger airbag 40. A sealing plate 47 is slidably sealed to the inner wall of the connecting box 44. A return spring 48 is fixedly connected to the top of the sealing plate 47. Two support plates 49 are fixedly connected to the inner wall of the connecting box 44. One support plate 49 is located in the air passage of the connecting box 44 communicating with the air inlet pipe 46, and the other support plate 49 is located in the air passage of the connecting box 44 communicating with the second air inlet pipe 410. The end of the return spring 48 away from the sealing plate 47 is connected to the support plate 49. The support plate 49 is fixed, and the top of the connecting box 44 is connected to the second air inlet pipe 410. The second air inlet pipe 410 is connected to the termination airbag 41. Two one-way valves 411 are installed on the inner wall of each support plate 49. The flow directions of the two one-way valves 411 in the same support plate 49 are opposite. The allowed flow direction of one one-way valve 411 is to flow into the connecting box 44, and the allowed flow direction of the remaining one-way valve 411 is to flow out of the connecting box 44. The inner diameter of the one-way valve 411 flowing out of the connecting box 44 is smaller than the inner diameter of the one-way valve 411 flowing into the connecting box 44.

[0031] As passengers slide down the rescue slide 1, they first compress the trigger airbag 40 inside the slide. The gas enters the connecting box 44 through the air inlet pipe 46. The sealing plate 47 does not block the air passage inside the connecting box 44 in the initial state, allowing the gas inside the trigger airbag 40 to enter the compression air ring 43 through the inflow one-way valve 411 in the support plate 49. After the compression air ring 43 is inflated, it compresses the constriction section 311 of the air supply pipe 310 on its inner side, thereby compressing the inner diameter of the constriction section 311 of the air supply pipe 310. When the passenger leaves the airbag 40, the airbag 40 rebounds, and the gas in the squeeze ring 43 flows out through the outflow one-way valve 411 in the support plate 49. Since the inner diameter of the one-way valve 411 flowing out of the connecting box 44 is smaller than the inner diameter of the one-way valve 411 flowing into the connecting box 44, the gas in the squeeze ring 43 flows out slowly. When the passenger squeezes the termination airbag 41, the gas in the termination airbag 41 enters the connecting box 44 through the second air inlet pipe 410 and enters through the inflow one-way valve 411 in the support plate 49. The airflow pushes the sealing plate 47 to slide along the inner wall of the connecting box 44. The sealing plate 47 prevents the gas in the squeeze air ring 43 from being discharged. When the sealing plate 47 slides along the inner wall of the connecting box 44, the return spring 48 is stretched simultaneously. After the passenger leaves the termination airbag 41, the tensioned return spring 48 pulls the sealing plate 47 to reset, causing the gas between the sealing plate 47 and the support plate 49 to flow out through the outflow one-way valve 411 in the support plate 49. Since the inner diameter of the outflow one-way valve 411 from the connecting box 44 is smaller than the inner diameter of the inflow one-way valve 411 into the connecting box 44, the sealing plate 47 resets slowly. This delayed reset structure ensures that when the passenger falls into the buffer airbag 34, the sealing plate 47 will not release the blockage of the gas in the compression ring 43 until the passenger leaves the buffer airbag 34. Then the sealing plate 47 releases the blockage of the compression ring 43, and the termination airbag 41 and the trigger airbag 40 return to their initial state, waiting for the next passenger to slide in and repeat the above process.

[0032] Because the life-saving slide 1 is a flexible inflatable slide, not an ideal smooth slope, lighter people (the elderly and children) will sink into the surface of the life-saving slide 1, increasing the contact area and drag resistance, and sliding slower. Heavier people will press the life-saving slide 1 flatter and harder, reducing the contact surface resistance and sliding more smoothly and faster. The faster the passenger slides, the shorter the time interval between the compression of the airbag 40 and the termination airbag 41, the greater the inflation volume in the compression air ring 43, and the stronger the compression force on the constriction section 311 of the air supply pipe 310. The greater the pipe diameter contraction of the constriction section 311, the smaller the pipe diameter, the faster the airflow speed, the greater the negative pressure, and the more seawater is sucked into the water-carrying bag 30. That is, the faster the passenger slides down (the heavier the passenger), the greater the amount of counterweight water on the side of the life raft 2 away from the slide. The instantaneous counterweight can counteract the falling side tilting force and suppress the swaying of the life raft 2.

Claims

1. A high-efficiency life-saving device for ship navigation, comprising: Two rescue slides; Its characteristic is that it also includes life rafts, wherein multiple life rafts are provided and arranged in an array, and the top of one of the life rafts is connected to the life slide; A balancing assembly located on the side of the life raft away from the rescue slide, which simultaneously increases the water load on the side of the life raft away from the rescue slide when a passenger falls into the life raft; The detection component is located inside the life raft and is connected to the balancing component. The detection component detects the sliding speed of passengers in the life raft, and the faster the passenger slides, the greater the increase in water load on the side of the life raft away from the life raft by the balancing component.

2. The high-efficiency life-saving device for marine navigation according to claim 1, characterized in that: The balancing assembly includes a water-carrying bladder located on the side of the life raft away from the rescue slide. A drain pipe is connected to the outside of the water-carrying bladder, and the drain pipe passes through the life raft and connects to the outside. A control device for controlling the connection of the drain pipe is provided at the end of the drain pipe near the water-carrying bladder. Two sliding columns are fixedly connected to the inner wall of the life raft, and the two sliding columns are respectively connected to two rescue slides. Two buffer airbags are fixedly connected inside the life raft. A one-way air inlet valve is installed on the surface of the buffer airbag, and the buffer airbag is located inside the sliding column. A filling element for filling the water-carrying bladder is provided between the buffer airbag and the water-carrying bladder.

3. The high-efficiency life-saving device for marine navigation according to claim 2, characterized in that: The bottom of the water-carrying bladder is tilted toward the drain pipe, and the end of the drain pipe away from the water-carrying bladder is above the water surface.

4. The high-efficiency life-saving device for marine navigation according to claim 2, characterized in that: The control component includes a sealing plug that is slidably and sealingly connected to the drain pipe. Connecting rods are fixedly connected to both sides of the sealing plug. The connecting rods are slidably connected to the inner wall of the drain pipe. A spring plate is fixedly connected to the end of the connecting rod away from the sealing plug. The spring plate is fixedly connected to the inner wall of the drain pipe.

5. The high-efficiency life-saving device for marine navigation according to claim 4, characterized in that: The sealing plug is tapered at the end near the drain pipe.

6. The high-efficiency life-saving device for marine navigation according to claim 2, characterized in that: The filling component includes an air supply pipe connected to the buffer airbag. The ends of the two air supply pipes away from the buffer airbag are connected to the water-carrying bladder. The middle part of the air supply pipe is a constriction section, and the bottom of the constriction section is connected to a water suction pipe. The end of the water suction pipe away from the air supply pipe is located at the bottom of the life raft.

7. The high-efficiency life-saving device for marine navigation according to claim 6, characterized in that: The detection component includes a trigger airbag and a stop airbag located on the inner wall of the rescue slide. The trigger airbag and the stop airbag are distributed along the axial direction of the rescue slide. The trigger airbag is located above the stop airbag. An extrusion member is provided on the outer side of the constriction section of the air supply pipe to adjust the extrusion force on the constriction section of the air supply pipe according to the time interval between the trigger airbag and the stop airbag being triggered.

8. The high-efficiency life-saving device for marine navigation according to claim 7, characterized in that: The compression component includes a compression air ring. The inner side of the compression air ring is located outside the constriction section of the air supply pipe. The outer side of the compression air ring is fixed to the inner wall of the life raft. The side of the compression air ring near the constriction section is made of rubber. A connecting box is connected to the outer side of the compression air ring. An inflation component for adjusting the air intake is provided on the inner wall of the connecting box. The inflation component is connected to the trigger airbag and the termination airbag respectively.

9. The high-efficiency life-saving device for marine navigation according to claim 8, characterized in that: The inflatable component includes an air inlet pipe 1 connected to the connecting box, the end of the air inlet pipe 1 away from the connecting box being connected to the trigger airbag, a sealing plate being slidably sealed to the inner wall of the connecting box, a return spring being fixedly connected to the top of the sealing plate, two support plates being fixedly connected to the inner wall of the connecting box, the end of the return spring away from the sealing plate being fixed to the support plate, an air inlet pipe 2 being connected to the top of the connecting box, the air inlet pipe 2 being connected to the termination airbag, and two one-way valves being installed on the inner wall of each support plate.

10. The high-efficiency life-saving device for marine navigation according to claim 9, characterized in that: The two check valves within the same support plate have opposite flow directions. One check valve is allowed to flow into the connecting box, while the other check valve is allowed to flow out of the connecting box. The inner diameter of the check valve flowing out of the connecting box is smaller than the inner diameter of the check valve flowing into the connecting box.

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