A rescue boat for buffering wave energy

Abstract

The invention discloses a rescue boat for buffering wave energy, comprising a hull and an airbag 1 arranged on the lower surface of the hull, the upper surface of the airbag 1 is connected to the lower surface of the hull, the airbag 1 is filled with gas, the air pressure value of the gas satisfies that the area of ​​the airbag 1 multiplied by the upper surface area of ​​the airbag 1 is equal to 2 / 3 to 9 / 10 of the weight of the rescue boat, and the surface of the airbag 1 is made of chlorosulfonated polyethylene material. The invention arranges the airbag 1 under the hull, so that when the rescue boat has a tendency to tilt longitudinally or laterally under the action of waves, a part of the airbag 1 is compressed and deformed, which plays a role in buffering wave energy and can prevent the rescue boat from tilting or heeling. In this way, the longitudinal distribution of the weight of each part or the longitudinal position of the buoyancy center can be avoided without changing the longitudinal distribution of the weight of each part or changing the longitudinal position of the buoyancy center; and the arrangement of the airbag 1 is flexible and diverse, and is arranged in a shape avoiding a driving component or a plurality of airbags 1 on both sides, and the amount of inflation or deflation can be adjusted according to the sea conditions, which is suitable for actual navigation conditions.

Description

Technical Field

[0001] The invention relates to water transport operations, ships or other water vessels, and in particular to a rescue boat for buffering wave energy. Background Art

[0002] The trim angle is the angle between the water plane of a ship when it is floating upright and the water plane after trimming. The trim angle refers to the floating state when the middle longitudinal section of the ship is perpendicular to the still water surface, but the middle transverse section is at a trim angle with the plumb line. Usually, the tilt of a ship toward the bow is called "bow trim", and the corresponding trim angle is positive; the tilt toward the stern is called "stern trim", and the corresponding trim angle is negative. Usually, trim adjustment is carried out on the basis of line design and overall layout division. First, the floating state of each load condition should be calculated, and the overall layout should be adjusted according to the calculation results, that is, the longitudinal distribution of the weight of each part should be changed until the floating state is satisfactory. It is worth noting that the floating state is only one of the main factors to be considered in the overall layout design, that is, the floating state adjustment should be carried out within the range of possible adjustments of the overall layout, otherwise it should be carried out through other methods such as changing the longitudinal position of the center of buoyancy. At present, the longitudinal trim is taken into consideration when designing the boat. Some scholars have also made structural design innovations to make the counterweight automatically adjust when the longitudinal trim or heel occurs. This is one idea, but if the wave energy can be directly buffered to avoid the longitudinal trim or heel, it will be another major breakthrough. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects in the prior art and provide a rescue boat for buffering wave energy, which can buffer the effect of wave energy and prevent the rescue boat from heeling and / or pitching. It can avoid pitching or heeling without changing the longitudinal distribution of the weight of each part or changing the longitudinal position of the center of buoyancy. The present invention has a simple structure and an ingenious design. It can be inflated and deflated in real time according to the specific conditions of the speed and sea conditions during navigation to maximize the effect of buffering wave energy.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is to design a rescue boat for buffering wave energy, including a hull and an airbag 1 arranged on the lower surface of the hull, the upper surface of the airbag 1 is connected to the lower surface of the hull, and the airbag 1 is filled with gas, the air pressure value of the gas satisfies that the area multiplied by the upper surface of the airbag 1 is equal to 2 / 3 to 9 / 10 of the weight of the rescue boat, and the surface of the airbag 1 is made of chlorosulfonated polyethylene material. The airbag 1 is arranged under the hull, so that when the rescue boat has a tendency to tilt longitudinally and / or laterally under the action of surge, a part of the airbag 1 is compressed and deformed, which plays a role in buffering wave energy and can prevent the rescue boat from tilting or pitching. In this way, the longitudinal distribution of the weight of each part or the longitudinal position of the center of buoyancy can be avoided without changing the longitudinal distribution of the weight of each part or changing the longitudinal position of the center of buoyancy. The surface of the airbag 1 is made of hypalon (chlorosulfonated polyethylene is also known as hypalon or hypalon), which is impact-resistant, easy to care for, and not easy to break. The maximum capacity of airbag 1 depends on the situation, but after multiplying it by the area of ​​airbag 1, it can support a part of the weight of the hull. Because if it cannot support it, it means that the hull directly compresses airbag 1 completely, and airbag 1 cannot play a role in buffering wave energy. If the air filled in airbag 1 can support all the weight of the hull, then airbag 1 can be regarded as a solid connected to the bottom of the hull, and it cannot play a role in buffering wave energy. That is, the gas in airbag 1 must have a certain air pressure, so that it can be deformed to absorb wave energy when there are waves.

[0005] A further technical solution is that the outer edge of the airbag 1 is streamlined; the airbag 1 is composed of an inner elastic material layer and an outer chlorosulfonated polyethylene layer; the airbag 1 is fixedly connected or detachably connected to the hull. Considering that the airbag 1 is set under the hull, it will affect the sailing resistance of the hull, so the airbag 1 is set to be streamlined, and the shape of the airbag 1 at the bow can even be set to a bulbous bow, which can not only reduce the sailing resistance caused by the airbag 1 to the hull, but also reduce the wave-making resistance. The airbag 1 can be fixedly set or movably connected to the hull, such as hanging under the hull, so that it can be removed for cleaning or maintenance when not needed.

[0006] A further technical solution is that the elastic material layer is an ethylene-vinyl acetate copolymer layer. A further technical solution is that the shape of the airbag 1 is U-shaped or V-shaped. In this way, the driving components of the rescue boat, such as a propeller or a jet pump, can be avoided, so that the airbag 1 can still be set without affecting the driving components.

[0007] A further technical solution is that a plurality of air bags are provided, which are respectively located on both sides of the hull.

[0008] A further technical solution is that the rescue boat also includes a barometer arranged on the airbag 1 and fixedly connected to the airbag 1, an air pipe is connected to the airbag 1, the other end of the air pipe is connected to the air pump arranged in the boat body, and an air valve is arranged on the air pipe. In this way, the air pressure of the airbag 1 can be adjusted according to the air pressure value displayed by the barometer and the sea conditions (if the sea conditions are relatively bad, the airbag 1 is inflated in multiple directions), and the air pressure in the airbag 1 can be adjusted in time according to the changes in the sea conditions. The air valve on the air pipe is also arranged in the boat body, that is, the air pump and a part of the air pipe are located in the cabin of the boat body, and the operator can adjust the opening degree of the air valve or close the air valve according to the air pressure value of the barometer and the sea conditions, and the operator can understand the air pressure in real time through the reflector arranged near the barometer (the reflector is fixedly connected to the outer surface of the boat body through a connecting rod).

[0009] A further technical solution is that an exhaust air pipe is connected to the air pipe, and an air valve is also arranged on the exhaust air pipe. In this way, when the sea condition turns from bad to good, part of the air pressure can be released by properly opening the air valve on the exhaust air pipe.

[0010] A further technical solution is to set a plurality of partitions in the airbag 1 to divide the airbag 1 into a plurality of air cavities, and set an air valve on the surface of the airbag 1 corresponding to each air cavity. In this way, when the sea conditions are not bad, only part of the air cavities need to be inflated, and when the sea conditions are bad, multiple air cavities or all air cavities are inflated at the same time, which is flexible in design and widely adaptable.

[0011] The advantages and beneficial effects of the present invention are as follows: an airbag is arranged under the hull, so that when the rescue boat has a tendency to tilt longitudinally or laterally under the action of waves, a part of the airbag is compressed and deformed, which plays a role in buffering wave energy and can prevent the rescue boat from tilting longitudinally or longitudinally. In this way, the longitudinal tilt or heeling can be avoided without changing the longitudinal distribution of the weight of each part or changing the longitudinal position of the center of buoyancy. The surface of the airbag is made of hypalon (chlorosulfonated polyethylene is also known as hypalon or hypalon), which is impact-resistant, easy to care for, and not easy to break. The airbag is set to be streamlined, and the shape of the airbag at the bow can even be set to a bulbous bow, which can not only reduce the sailing resistance caused by the airbag to the hull, but also reduce the wave-making resistance. An airbag is set under the hull, so that when the rescue boat tends to tilt or tilt due to the action of waves, a part of the airbag is compressed and deformed, which plays a role in buffering wave energy and preventing the rescue boat from tilting or tilting. In this way, the longitudinal distribution of the weight of each part or the longitudinal position of the buoyancy center can be avoided without changing the longitudinal distribution of the weight of each part or changing the longitudinal position of the buoyancy center. The setting of the airbag is flexible and diverse, and it can be set to avoid the shape of the driving component or multiple airbags on both sides. The amount of inflation or deflation can be adjusted according to the sea conditions, which is suitable for actual navigation conditions. The surface of the airbag is made of hypalon (chlorosulfonated polyethylene, also known as hypalon or hypalon), which is impact-resistant, easy to care for, and not easy to break. The maximum amount of airbag 1 is determined according to the situation, but after multiplying it by the area of ​​airbag 1, it can support part of the weight of the hull. If it cannot support it, it means that the hull directly compresses the airbag 1 completely, and the airbag 1 cannot play a role in buffering wave energy. If the air filled in the airbag 1 can support the weight of the hull, the airbag 1 can be regarded as a solid connected to the bottom of the hull, and it cannot play a role in buffering wave energy. That is, the gas in the airbag 1 must have a certain air pressure, so that it can be deformed to absorb wave energy when there are waves. Considering that the airbag 1 is set under the hull, it will affect the sailing resistance of the hull. Therefore, the airbag 1 is set to be streamlined, and the shape of the airbag 1 at the bow can even be set to be a bulbous bow. In addition to reducing the sailing resistance caused by the airbag 1 to the hull, it can also reduce the wave-making resistance. The airbag 1 can be fixed or movably connected to the hull, such as hanging under the hull, so that it can be removed for cleaning or maintenance when it is not needed. The U-shaped or V-shaped airbag can avoid the driving components of the rescue boat, such as the propeller or the jet pump, so that the airbag can still be set without affecting the driving components. The inflation pressure of the airbag can be adjusted according to the pressure value displayed by the barometer and the sea conditions (if the sea conditions are bad, the airbag can be inflated more often). The air pressure in the airbag can be adjusted in time according to the changes in the sea conditions.The air valve on the air pipe is also set in the hull, that is, the air pump and part of the air pipe are located in the cabin of the hull. The operator can adjust the opening degree of the air valve or close the air valve according to the air pressure value of the barometer and the sea conditions. The operator can understand the air pressure in real time through the reflector set near the barometer (the reflector is fixedly connected to the outer surface of the hull through a connecting rod). When the sea conditions change from bad to good, part of the air pressure can be released by properly opening the air valve on the exhaust air pipe. When the sea conditions are not bad, only part of the air cavity needs to be inflated. When the sea conditions are bad, multiple air cavities or all air cavities are inflated at the same time. The design is flexible and widely adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a rescue boat for buffering wave energy according to a first embodiment of the present invention;

[0013] Figure 2 yes Figure 1 A partially enlarged schematic diagram of a middle portion of the middle airbag;

[0014] Figure 3 is a three-dimensional schematic diagram of the first embodiment of the present invention;

[0015] Figure 4 yes Figure 1 A schematic diagram of a compressed state of the airbag;

[0016] Figure 5 yes Figure 1 A schematic diagram of another state in which the airbag is compressed;

[0017] Figure 6 is a bottom view of the hull of the second embodiment of the present invention;

[0018] Figure 7 is a schematic diagram of Embodiment 3 of the present invention;

[0019] Figure 8 yes Figure 7 Schematic diagram of the state after bow trim.

[0020] In the figure: 1. hull; 2. airbag 1; 3. gas; 4. elastic material layer; 5. chlorosulfonated polyethylene layer; 6. barometer; 7. air pipe; 8. air pump; 9. air valve; 10. exhaust air pipe; 11. ballast water tank; 12. partition; 13. rubber airbag 2. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Embodiment 1:

[0022] like Figures 1 to 5 As shown (for ease of illustration, Figure 1 The present invention is a rescue boat for buffering wave energy, comprising a hull 1 and an airbag 2 arranged on the lower surface of the hull 1, the upper surface of the airbag 2 is fixedly connected to the lower surface of the hull 1, the airbag 2 is filled with gas 3, the air pressure value of the gas 3 satisfies that the pressure multiplied by the area of ​​the upper surface of the airbag is equal to 2 / 3 to 9 / 10 of the weight of the rescue boat, and the surface of the airbag 2 is made of chlorosulfonated polyethylene material. The shape of the airbag 2 is streamlined; the airbag 2 is composed of an inner elastic material layer 4 and an outer chlorosulfonated polyethylene layer 5. The elastic material layer 4 is an ethylene-vinyl acetate copolymer layer. The rescue boat also includes a pressure gauge 6 arranged on the airbag 1 and fixedly connected to the airbag 1, an air pipe 7 is connected to the airbag 1, the other end of the air pipe 7 is connected to the air pump 8 arranged in the hull, and an air valve 9 is arranged on the air pipe 7. An exhaust air pipe 10 is also connected to the air pipe 7, and an air valve 9 is also arranged on the exhaust air pipe 10. Embodiment 2:

[0023] The difference from the first embodiment is that Figure 6 As shown, the airbag 2 under the hull 1 is in a U-shape. Embodiment three:

[0024] The difference from the first embodiment is that Figure 7 , Figure 8 As shown, on the basis of the first embodiment (it can also solve the self-righting problem when the hull 1 is tilted, Figure 7It is only for illustration. In practice, the airbag 1 fills up the space above the ballast water and is tightly attached to the bulkhead). A ballast water tank 11 is arranged in the hull 1. The ballast water tank 11 is in a rectangular shape, and its length is parallel to the length of the hull 1. The horizontal plane of the ballast water is lower than the top wall of the ballast water tank 11 when the hull 1 is floating. A bulkhead 12 is suspended at the centerline of the top wall. The bulkhead 12 is vertically arranged when the hull 1 is floating, and its direction is parallel to the width direction of the hull 1. The lower end of the bulkhead 12 keeps a distance from the horizontal plane when the hull 1 is floating, and the distance is greater than or equal to zero. A rubber airbag 2 13 is fixedly arranged on both sides of the bulkhead 12. The upper surface of the rubber airbag 2 13 is fixedly connected to the top wall. The rubber airbag 2 13 is in a rectangular shape. After the rubber airbag 2 13 is filled with air, it just fills the space in the ballast water tank 11 except the ballast water. With such an arrangement, when the hull 1 tilts longitudinally, since the bulkhead 12 is heavier and in a suspended state, it deviates in the direction of the longitudinal tilt (such as bow tilt), so that the bulkhead 12 compresses the rubber airbag 2 13 near the bow, so that the rubber airbag 2 13 near the bow squeezes the ballast water below it, while the rubber airbag 2 13 near the stern is under very little pressure and is released and becomes larger. Since one rubber airbag 2 13 is compressed and the other is not compressed, the ballast water below the compressed rubber airbag 2 13 is squeezed and flows to the bottom of the uncompressed rubber airbag 2 13 due to the deformation of the rubber airbag 2 13. In this way, when the bow tilts, the ballast water at the stern becomes more, which plays a role in adjusting the ballast counterweight, and can achieve the effect of self-righting when the hull 1 tilts longitudinally, such as Figure 8 As shown in the figure, although the rubber airbag 2 on the left is compressed, it can expand downward, thus squeezing the ballast water below it. Although the rubber airbag 2 on the right is not compressed at this time, the one on the right should become larger, but the ballast water on the left is squeezed and flows to the right. At this time, the rubber airbag 2 on the right has a smaller air pressure and is unable to resist the ballast water flowing from the left. Figure 8 In the state shown, although the rubber airbag 2 on the left is compressed, due to its higher air pressure, it expands and squeezes the ballast water so that the ballast water flows to the right. Although the rubber airbag 2 on the right is not compressed, it can only accept the ballast water flowing from the left due to its lower air pressure. Such an arrangement can achieve self-righting. It has a simple structure and ingenious design but achieves self-righting.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rescue boat for buffering wave energy, characterized in that: It comprises a hull and an airbag 1 arranged on the lower surface of the hull, the upper surface of the airbag 1 is connected to the lower surface of the hull, the airbag 1 is filled with gas, the air pressure value of the gas satisfies that the gas pressure multiplied by the area of ​​the upper surface of the airbag 1 is equal to 2 / 3 to 9 / 10 of the weight of the rescue boat, and the surface of the airbag 1 is made of chlorosulfonated polyethylene material; A ballast water tank is arranged in the hull. The ballast water tank is in a rectangular shape, and its long direction is parallel to the long direction of the hull. A partition is suspended at the centerline position of the top wall of the ballast water tank. A rubber airbag 2 is fixed on both sides of the partition. The upper surface of the rubber airbag 2 is fixedly connected to the top wall. When the rubber airbag 2 is filled with air, it just fills the space in the ballast water tank except for ballast water. The rubber airbag 2 is in a rectangular shape.

2. A rescue boat for buffering wave energy according to claim 1, characterized in that: The outer edge of the airbag 1 is streamlined; the airbag 1 is composed of an inner elastic material layer and an outer chlorosulfonated polyethylene layer; the airbag 1 is fixedly connected or detachably connected to the boat body.

3. A rescue boat for buffering wave energy according to claim 2, characterized in that: The elastic material layer is an ethylene-vinyl acetate copolymer layer.

4. A rescue boat for buffering wave energy according to claim 3, characterized in that: The shape of the airbag 1 is U-shaped or V-shaped.

5. A rescue boat for buffering wave energy according to claim 3, characterized in that: The airbags are provided in a plurality and are respectively located at both sides of the boat body.

6. A rescue boat for buffering wave energy according to claim 4 or 5, characterized in that: The rescue boat also includes a pressure gauge arranged on the airbag 1 and fixedly connected to the airbag 1, an air pipe is connected to the airbag 1, the other end of the air pipe is connected to the air pump arranged in the boat body, and an air valve is arranged on the air pipe.

7. A rescue boat for buffering wave energy according to claim 6, characterized in that: The air pipe is also connected to an exhaust air pipe, and an air valve is also arranged on the exhaust air pipe.

8. A rescue boat for buffering wave energy according to claim 7, characterized in that: A plurality of partitions are arranged in the airbag 1 to divide the airbag 1 into a plurality of air cavities, and an air valve is arranged on the surface of the airbag 1 corresponding to each air cavity.

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