Improved totally-closed lifeboat
By incorporating air intake and exhaust components within the fully enclosed lifeboat, and combining them with a flow guide ring structure, the issues of insufficient sealing and stability were resolved, thereby improving gas flow and enhancing the comfort and stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天津弘盛科技有限公司
- Filing Date
- 2026-04-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing fully enclosed lifeboats lack sufficient sealing and stability under adverse weather conditions, and the lack of internal air circulation leads to stuffiness and discomfort for personnel.
An air inlet and an air outlet were designed. The air inlet guides external gas into the hollow cavity, and the air outlet discharges internal gas. A guide ring structure is set to prevent rainwater from entering, ensuring gas flow and device stability.
It improves the comfort and stability of the lifeboat's interior, prevents stuffiness and rainwater from entering, and enhances personnel safety and emergency response capabilities.
Smart Images

Figure CN224184473U_ABST
Abstract
Description
An improved fully enclosed lifeboat Technical Field
[0001] This utility model belongs to the field of fully enclosed lifeboat technology, specifically relating to an improved fully enclosed lifeboat. Background Technology
[0002] Lifeboats play an indispensable role in maritime rescue missions. However, with the increasing complexity of the marine environment and the diversification of rescue missions, traditional lifeboats have gradually revealed shortcomings in some key technologies. First, traditional lifeboats have limitations in terms of sealing. In severe weather conditions, such as strong winds, high waves, or heavy rain, the sealing performance of lifeboats is often challenged, potentially leading to water ingress or adverse effects on the crew from the external environment. Second, the stability of traditional lifeboats needs improvement. On turbulent seas, lifeboats are easily affected by wind and waves, posing a risk of rocking, pitching, or even capsizing, thus threatening the safety of the crew.
[0003] Therefore, fully enclosed lifeboats have emerged. Compared with traditional lifeboats, fully enclosed lifeboats have better watertightness and are safer. However, existing fully enclosed lifeboats still have certain defects. For example, Chinese patent with publication number "CN 220616143U" discloses a fire-resistant fully enclosed lifeboat. This device includes a lifeboat body, with fasteners fixedly connected to both sides of the lifeboat body. A bottom baffle and a buffer plate are provided below the lifeboat body, and the bottom baffle and the buffer plate are fixedly connected. The fasteners have cavities inside, and an external pressure spring and an internal pressure spring are provided in the cavities. The internal pressure spring is located inside the external pressure spring. One end of the internal pressure spring and the external pressure spring are fixedly connected to the inner surface of the cavity, and the other end of the internal pressure spring and the external pressure spring are fixedly connected to a telescopic rod. One end of the telescopic rod is fixedly connected to the buffer plate. When this device is in use, because there is no air supply structure, the air inside the lifeboat does not circulate, and the people inside the lifeboat will feel stuffy and hot, which can easily lead to discomfort for the people inside the lifeboat. Summary of the Invention
[0004] The purpose of this invention is to provide an improved fully enclosed lifeboat to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved fully enclosed lifeboat, including a hull component, wherein a hollow cavity for protecting personnel is formed inside the hull component, and an air inlet and an air outlet are fixedly connected to the top of the hull component;
[0006] The air inlet, hollow cavity and air outlet form a gas delivery channel along a preset path. The air inlet includes a second rain shield, an inner cover and an air inlet pipe. The bottom of the air inlet pipe is fixedly connected to the inner top of the second rain shield. The inner cover is fixed to the circumferential surface of the air inlet pipe and is located inside the second rain shield. Multiple air inlet holes are opened on the circumferential surface of the air inlet pipe. The air inlet holes are located between the inner top of the second rain shield and the top of the inner cover.
[0007] Preferably, a plurality of second guide rings are fixedly connected at equal intervals from top to bottom on the inner wall of the second rain cover, and a plurality of first guide rings are fixedly connected at equal intervals from top to bottom on the outer circumferential surface of the inner cover. The first guide rings and the second guide rings are staggered between the outer wall of the inner cover and the inner wall of the second rain cover, and a gap is formed between the first guide rings and the second guide rings to allow gas to pass through.
[0008] Preferably, both the second guide ring and the first guide ring slope downwards from top to bottom to form a guide ramp.
[0009] Preferably, the air outlet component includes an air outlet pipe, an installation cavity is formed inside the air outlet pipe, an exhaust fan is installed inside the installation cavity, and a ventilator is fixedly connected above the air outlet pipe, with a first rain shield fixedly connected to the top of the ventilator.
[0010] Preferably, the hull component includes a lifeboat body, the hollow cavity is formed inside the lifeboat body, the top of the lifeboat body is open to form an entrance, and a hatch for covering the entrance is rotatably connected to the top of the lifeboat body.
[0011] Preferably, the hatch is equipped with a handle lock.
[0012] Preferably, an observation hood is fixedly connected to the top of the lifeboat body, and mounting slots are provided on both sides of the observation hood. Tempered glass is fixedly connected inside the mounting slots. The inlet and outlet are located between the air inlet pipe and the observation hood, and the air outlet pipe is fixedly connected to the top of the observation hood.
[0013] Preferably, anti-tilt plates are fixedly connected to both symmetrical sides of the lifeboat body.
[0014] Preferably, railings are fixedly connected to both sides of the lifeboat body, and the railings are located above the anti-tipping plate.
[0015] Preferably, two connecting rings are symmetrically fixed to the top of the lifeboat body, and the observation hood and air intake pipe are located between the two connecting rings.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) By setting up an air inlet and an air outlet, when personnel use the lifeboat body, the air inlet guides the outside air into the hollow cavity and the air outlet discharges the air inside the hollow cavity, so that the air inside the hollow cavity can maintain air circulation, so that the personnel inside the lifeboat will not feel stuffy and will not easily cause discomfort to the personnel inside the lifeboat.
[0018] (2) Based on the above-mentioned beneficial effects, when the present invention draws in gas through the air intake component, by setting an inner cover and a second rain shield on the air intake pipe, the gas passes between the second rain shield and the inner cover and enters the interior of the air intake pipe, thereby blocking the probability of rainwater entering the interior of the air intake pipe, preventing water from entering the interior of the hollow cavity along with the gas, improving the dryness of the interior of the hollow cavity, and further improving the comfort of personnel.
[0019] (3) Based on the above-mentioned beneficial effects, this utility model provides a second guide ring on the inner wall of the second rain cover and a first guide ring on the outer wall of the inner cover. When the gas passes through the first guide ring and the second guide ring, the first guide ring and the second guide ring block the water body, thereby further reducing the probability of water body entering the air inlet pipe and improving the stability of the device during use. Attached Figure Description
[0020] Figure 1 is one of the perspective views of this utility model;
[0021] Figure 2 is a second perspective view of this utility model;
[0022] Figure 3 is a third perspective view of this utility model;
[0023] Figure 4 is one of the perspective views of the hatch of this utility model after it is opened;
[0024] Figure 5 is a second perspective view of the hatch of this utility model after it is opened;
[0025] Figure 6 is a perspective view of the present invention with the first and second rain shields removed;
[0026] Figure 7 is a cross-sectional view of the second rain cover of this utility model;
[0027] Figure 8 is one of the cross-sectional views of the first rain cover of this utility model;
[0028] Figure 9 is a second cross-sectional view of the first rain cover of this utility model;
[0029] Figure 10 is a diagram of the internal structure of the first rain cover of this utility model;
[0030] In the diagram: 1. Connecting ring; 2. Lifeboat body; 3. Anti-tilt plate; 4. Railing; 5. Air intake; 51. Air intake pipe; 52. Air intake hole; 53. First guide ring; 54. Second guide ring; 55. Inner cover; 56. Second rain cover; 6. Hatch door; 7. Air outlet; 71. Air outlet pipe; 72. Exhaust fan; 73. Mounting cavity; 74. First rain cover; 75. Ventilation cover; 8. Mounting slot; 9. Tempered glass; 10. Observation hood; 11. Entrance / exit; 12. Handle lock. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please refer to Figures 1-10. The present invention provides the following technical solution:
[0033] An improved fully enclosed lifeboat includes a hull component, the interior of which forms a hollow cavity to protect personnel, and an air inlet 5 and an air outlet 7 are fixedly connected to the top of the hull component.
[0034] A gas delivery channel is formed between the air inlet 5, the hollow cavity and the air outlet 7 to deliver gas along a preset path. The air inlet 5 includes a second rain shield 56, an inner cover 55 and an air inlet pipe 51. The bottom of the air inlet pipe 51 is fixedly connected to the inner top of the second rain shield 56. The inner cover 55 is fixed to the circumferential surface of the air inlet pipe 51 and is located inside the second rain shield 56. Multiple air inlets 52 are opened on the circumferential surface of the air inlet pipe 51. The air inlets 52 are located between the inner top of the second rain shield 56 and the top of the inner cover 55.
[0035] To improve the emergency response capabilities and escape skills of the crew through the above technical solutions, it is also necessary to organize regular emergency drills. By simulating the escape process in an emergency, the crew can become familiar with the emergency facilities and usage methods of the lifeboat, improving their self-rescue capabilities in real emergencies. When personnel need to use the device, they enter the hollow cavity inside the hull structure, and then the hull structure is lowered to the water surface. The hull structure protects the personnel, and to maintain air circulation inside the hollow cavity, the air inlet 5 and air outlet 7 operate to allow air to enter. Component 5 draws in outside air, supports the air intake pipe 51 through the cabin components, supports the inner cover 55 and the second rain shield 56 through the air intake pipe 51, draws in outside air through the air intake hole 52, and when the air enters through the air intake hole 52, the second rain shield 56 and the inner cover 55 cooperate to prevent rainwater from entering the air intake pipe 51 through the air intake hole 52, delivers the air to the hollow cavity through the air intake pipe 51, and finally discharges the air inside the hollow cavity through the air outlet component 7, thereby maintaining air flow inside the hollow cavity and improving the comfort of the personnel inside the cabin components.
[0036] In addition, in this utility model, in order to further reduce the amount of water entering the air inlet pipe 51, as shown in Figures 1-2 and 4-5, a plurality of second guide rings 54 are fixedly connected at equal intervals from top to bottom on the inner wall of the second rain shield 56, and a plurality of first guide rings 53 are fixedly connected at equal intervals from top to bottom on the outer circumferential surface of the inner cover 55. The first guide rings 53 and the second guide rings 54 are staggered between the outer wall of the inner cover 55 and the inner wall of the second rain shield 56, and a gap for gas to pass through is formed between the first guide rings 53 and the second guide rings 54.
[0037] Both the second guide ring 54 and the first guide ring 53 slope downwards from top to bottom to form a guide ramp.
[0038] In this embodiment, when gas enters through the second rain shield 56 and the inner cover 55, the second rain shield 56 supports multiple second guide rings 54, and the inner cover 55 supports multiple first guide rings 53. When gas enters between the second rain shield 56 and the inner cover 55, the guide ramps on the second rain shield 56 and the inner cover 55 work together to ensure that if rainwater accidentally enters between the second rain shield 56 and the inner cover 55, the rainwater will automatically drain out from between the second rain shield 56 and the inner cover 55, preventing rainwater from entering the interior of the air inlet 52.
[0039] Specifically, in one embodiment, regarding the aforementioned air outlet 7:
[0040] As shown in Figures 1-2 and 4-7, the air outlet component 7 includes an air outlet pipe 71, an installation cavity 73 is formed inside the air outlet pipe 71, an exhaust fan 72 is installed inside the installation cavity 73, and a ventilator 75 is fixedly connected above the air outlet pipe 71. A first rain shield 74 is fixedly connected to the top of the ventilator 75.
[0041] In this embodiment, the air outlet pipe 71 is supported by the cabin components, and the exhaust fan 72 inside the air outlet pipe 71 works to guide the gas inside the hollow cavity to be discharged through the air outlet pipe 71. When the air outlet pipe 71 discharges gas, the ventilation cover 75 and the first rain cover 74 prevent external debris from entering the interior of the mounting cavity 73.
[0042] Specifically, in one embodiment, regarding the aforementioned hull components:
[0043] As shown in Figures 1-6, the hull components include a lifeboat body 2, a hollow cavity is formed inside the lifeboat body 2, the top of the lifeboat body 2 is open to form an entrance 11, and a hatch 6 for covering the entrance 11 is rotatably connected to the top of the lifeboat body 2.
[0044] The hatch 6 is equipped with a handle lock 12.
[0045] In this embodiment, when personnel need to enter the interior of the lifeboat body 2, the hatch 6 is opened, and personnel enter the hollow cavity inside the lifeboat body 2 through the entrance 11. The hatch 6 is then rotated back to its original position, and the handle lock 12 is turned to close the hatch 6.
[0046] In order to observe the exterior of the lifeboat body 2, as shown in Figures 1-2 and 4-6, an observation cover 10 is fixedly connected to the top of the lifeboat body 2. The observation cover 10 has mounting slots 8 on both sides symmetrically. Tempered glass 9 is fixedly connected inside the mounting slots 8. The inlet and outlet 11 is located between the air inlet pipe 51 and the observation cover 10. The air outlet pipe 71 is fixedly connected to the top of the observation cover 10.
[0047] In this embodiment, the observation hood 10 is supported by the lifeboat body 2, and the tempered glass 9 is supported by the observation hood 10, allowing personnel to observe the outside world through the tempered glass 9.
[0048] To improve the stability of the lifeboat body 2, as shown in Figures 1-6, anti-tilt plates 3 are fixedly connected to both sides of the lifeboat body 2.
[0049] In this embodiment, when the device is placed on the water surface, the anti-tilt plate 3 is used to increase the stability of the lifeboat body 2.
[0050] To allow life-saving equipment to be suspended and to facilitate movement of people on the device, as shown in Figures 1-6, railings 4 are fixedly connected to both sides of the lifeboat body 2 symmetrically, with the railings 4 positioned above the anti-tilt plate 3.
[0051] To facilitate the lifting of the docking frame, as shown in Figures 1-2, two connecting rings 1 are symmetrically fixed to the top of the lifeboat body 2, with the observation hood 10 and the air intake pipe 51 located between the two connecting rings 1.
[0052] In this embodiment, the docking frame is connected by the connecting ring 1, and the docking frame can drive the lifeboat body 2 to move, making it easy to lower the lifeboat body 2 to the water surface for use.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An improved fully enclosed lifeboat, characterized in that: The device includes a hull component, which forms a hollow cavity to protect personnel. An air inlet (5) and an air outlet (7) are fixedly connected to the top of the hull component. A gas delivery channel is formed between the air inlet (5), the hollow cavity, and the air outlet (7) to deliver gas along a preset path. The air inlet (5) includes a second rain shield (56), an inner cover (55), and an air inlet pipe (51). The bottom of the air inlet pipe (51) is fixedly connected to the top of the inside of the second rain shield (56). The inner cover (55) is fixed to the circumferential surface of the air inlet pipe (51) and is located inside the second rain shield (56). Multiple air inlets (52) are opened on the circumferential surface of the air inlet pipe (51). The air inlets (52) are located between the top of the inside of the second rain shield (56) and the top of the inner cover (55).
2. The improved fully enclosed lifeboat according to claim 1, characterized in that: The inner wall of the second rain cover (56) is fixedly connected with multiple second guide rings (54) at equal intervals from top to bottom. The outer circumferential surface of the inner cover (55) is fixedly connected with multiple first guide rings (53) at equal intervals from top to bottom. The first guide rings (53) and the second guide rings (54) are staggered between the outer wall of the inner cover (55) and the inner wall of the second rain cover (56), and a gap is formed between the first guide rings (53) and the second guide rings (54) to allow gas to pass through.
3. An improved fully enclosed lifeboat according to claim 2, characterized in that: The second guide ring (54) and the first guide ring (53) both slope downward from top to bottom to form a guide slope.
4. An improved fully enclosed lifeboat according to claim 3, characterized in that: The air outlet component (7) includes an air outlet pipe (71), an installation cavity (73) is formed inside the air outlet pipe (71), an exhaust fan (72) is installed inside the installation cavity (73), and a ventilator (75) is fixedly connected above the air outlet pipe (71), and a first rain shield (74) is fixedly connected to the top of the ventilator (75).
5. An improved fully enclosed lifeboat according to claim 1, characterized in that: The hull components include a lifeboat body (2), the hollow cavity is formed inside the lifeboat body (2), the top of the lifeboat body (2) is open to form an entrance (11), and the top of the lifeboat body (2) is rotatably connected to a hatch (6) for covering the entrance (11).
6. An improved fully enclosed lifeboat according to claim 5, characterized in that: The hatch (6) is equipped with a handle lock (12).
7. An improved fully enclosed lifeboat according to claim 5, characterized in that: The top of the lifeboat body (2) is fixedly connected to an observation hood (10). The observation hood (10) has mounting slots (8) on both sides symmetrically. The interior of the mounting slots (8) is fixedly connected to tempered glass (9). The inlet (11) is located between the air inlet pipe (51) and the observation hood (10). The air outlet pipe (71) is fixedly connected to the top of the observation hood (10).
8. An improved fully enclosed lifeboat according to claim 7, characterized in that: The lifeboat body (2) has anti-tilt plates (3) fixedly connected to both sides of its symmetrical shape.
9. An improved fully enclosed lifeboat according to claim 8, characterized in that: The lifeboat body (2) is fixedly connected to railings (4) on both sides symmetrically, and the railings (4) are located above the anti-tilt plate (3).
10. An improved fully enclosed lifeboat according to claim 9, characterized in that: The top of the lifeboat body (2) is symmetrically fixed with two connecting rings (1), and the observation hood (10) and the air inlet pipe (51) are located between the two connecting rings (1).
Citation Information
Patent Citations
Fire-resistant totally-closed lifeboat
CN220616143U