A vibration-damping boat bottom structure and an amphibious boat

Abstract

This invention provides a vibration-damping hull structure and an amphibious vessel, relating to the technical field of amphibious vessels. The vibration-damping hull structure includes: vibration-damping airbags and polymer wear-resistant plates; the vibration-damping airbags and polymer wear-resistant plates are located at the bottom of the main hull, with the vibration-damping airbags positioned between the polymer wear-resistant plates and the main hull; the vibration-damping airbags are cylindrical structures extending from the stern to the bow of the main hull; there are multiple vibration-damping airbags arranged along the left-right direction of the main hull; the shape of the vibration-damping airbags follows the hull's bottom profile; there are multiple polymer wear-resistant plates laid out in a cross-stack manner, and their shape also follows the hull's bottom profile; the left and right sides of the polymer wear-resistant plates are fixed to the left and right sides of the main hull. This invention solves the problems of poor vibration damping effect and difficult maintenance associated with traditional vibration damping systems installed on wear-resistant layers.

Description

Technical Field

[0001] The present invention relates to the technical field of amphibious boats, and in particular to a vibration-damping boat bottom structure and an amphibious boat. Background Art

[0002] An amphibious vessel is a special means of transportation that has the ability to travel on both water and land. It can sail on the water like an ordinary ship, and can also travel on land relying on tires, tracks or other special devices. It breaks through the limitations of traditional water transportation on the driving area and can be used in a variety of complex environments.

[0003] An amphibious boat is a special amphibious boat that can travel on water and land. It is mainly used in the following scenarios:

[0004] Polar scientific research: In polar regions, amphibious vessels are one of the important tools for scientific research. They can carry scientific researchers and equipment to navigate and land in complex environments such as polar ice seas and glaciers, providing convenient transportation and operating platforms for polar scientific research, and helping scientists conduct research on polar climate, ecology, geology and other aspects.

[0005] Ice transportation: In the cold northern regions, rivers, lakes and other waters freeze in winter, making it impossible for ordinary ships to pass. Amphibious boats can transport personnel, materials and equipment on the ice, provide necessary support for local residents' lives, industrial production and infrastructure construction, and ensure the supply of materials and transportation in ice areas.

[0006] Ice rescue: When people or vehicles are in distress on the ice, amphibious boats can quickly arrive at the scene to rescue them.

[0007] Tourism: Some tourist attractions in cold regions, such as the Ice and Snow Festival and the Arctic Village, have also begun to introduce amphibious boats as one of their tourism projects. Tourists can take an amphibious boat to tour the ice, enjoy the beautiful scenery of the ice and snow, and experience a unique ice tour, which adds new highlights and fun to the tourism industry.

[0008] Some snowboats have a shock-absorbing system composed of spring components between the cabin and the hull. In the shock-absorbing method of the above structure, the elasticity of the spring will gradually weaken or even fail, resulting in poor shock-absorbing effect. In addition, auxiliary components such as rubber pads and connectors used in conjunction with the springs are also prone to wear and aging, and need to be regularly inspected and replaced. Since the spring shock-absorbing system is installed between the cabin and the hull, the location is relatively hidden. During daily inspection and maintenance, it is necessary to dismantle some of the decorations and equipment inside the cabin for a comprehensive inspection. The operation is cumbersome and maintenance is difficult, which increases maintenance costs. Summary of the invention

[0009] The problem solved by the invention is how to solve the problems of poor vibration reduction effect and high maintenance cost in the traditional vibration reduction system.

[0010] In a first aspect, the present invention provides a vibration-damping boat bottom structure, comprising: a vibration-damping airbag and a polymer wear-resistant plate; the vibration-damping airbag and the polymer wear-resistant plate are located at the bottom of the main hull, and the vibration-damping airbag is located between the polymer wear-resistant plate and the main hull;

[0011] The vibration-damping airbag is a cylindrical structure, and its extension direction is from the stern to the bow of the main hull; there are multiple vibration-damping airbags, and they are arranged along the left and right directions of the main hull; the shape of the vibration-damping airbag follows the bottom line of the main hull;

[0012] There are multiple polymer wear-resistant plates, which are laid in sequence in a cross-stacked manner from the tail end to the bow end of the main hull, and their shapes follow the bottom line of the main hull; the left and right sides of the polymer wear-resistant plates are fixed to the left and right sides of the main hull;

[0013] A clamp is sleeved on the outer side of the plurality of vibration-damping airbags. The clamp is arranged at the position of the flat bottom section of the main hull and is connected to the main hull.

[0014] Optionally, the multiple shock-absorbing airbags include multiple middle airbags, multiple side airbags, two bilge airbags and two side airbags; the multiple middle airbags are of equal length and are located in the middle of the bottom of the main hull; the multiple side airbags are respectively located on both sides of the middle airbag, and their lengths gradually decrease from the middle to the sides; the two bilge airbags are respectively located on the outside of the side airbags on both sides; the two side airbags are respectively located on the outside of the two bilge airbags, and the side airbags extend along the side of the bottom of the main hull, and a part of the side airbags located at the bow wraps around the ends of the side airbags and the bilge airbags, and the end located at one end of the bow is arranged next to the end of the middle airbag located at one end of the bow.

[0015] Optionally, the plurality of polymer wear-resistant plates include a plurality of straight wear-resistant plates and a plurality of transition wear-resistant plates, the straight wear-resistant plates are located below the flat bottom section of the bottom of the main hull, and the transition wear-resistant plates are located below the curved section of the bottom of the main hull.

[0016] Optionally, the ends of the shock-absorbing airbags are provided with connecting ears, and the shock-absorbing airbags are fixedly connected to each other by passing connecting ropes or steel wires through the connecting ears.

[0017] Optionally, fixing holes are provided on the left and right sides of the polymer wear-resistant plate and the front end of the polymer wear-resistant plate corresponding to the bow of the main hull, and corresponding through holes are provided at positions on the main hull corresponding to the above-mentioned fixing holes. The steel wire rope passes through the fixing holes and the through holes in turn to fix the polymer wear-resistant plate to the main hull.

[0018] Optionally, multiple U-shaped shackles are evenly spaced on the left and right sides of the polymer wear-resistant plate, and multiple lifting ring nuts are evenly spaced on the left and right sides of the main hull, and the number and positions of the U-shaped shackles correspond to the lifting ring nuts; the steel wire rope passes through the U-shaped shackles and the lifting ring nuts alternately in turn, thereby fixing the polymer wear-resistant plate to the main hull.

[0019] Optionally, a pad is installed on the inner surface of the clamp, and the shape of the pad is the same as the shape of the outer side after the multiple shock-absorbing airbags are connected.

[0020] Optionally, a bolt is fixed to the bottom of the main hull, and an opening is provided on the clamp; the end of the bolt passes through the opening on the clamp and is connected to a nut; a spring is sleeved on the bolt, and the spring is located between the bottom of the main hull and the clamp.

[0021] Optionally, washers are provided at the upper and lower ends of the spring, and the opening diameter of the clamp is larger than the diameter of the bolt and smaller than the diameter of the nut.

[0022] In a second aspect, the present invention provides an amphibious boat, comprising the above-mentioned vibration-damping bottom structure.

[0023] The beneficial effects of the vibration-damping boat bottom structure and the amphibious boat of the present invention are as follows: the boat bottom structure adopts air bags as a buffer layer, and the outermost layer is coated with a polymer polyethylene plate as a wear-resistant layer, and the polymer polyethylene plate is laid in a scale-like manner, and the two sides are flexibly connected to the side of the boat body by steel wire ropes, so that the overall vibration reduction performance is more excellent. After being equipped on the amphibious boat, it can provide a better-performing and longer-life transportation tool for disaster relief, material transportation or scientific investigation for my country's northern border and polar regions; and the shock-absorbing component mainly adopts air bags, which has the advantages of low manufacturing and maintenance costs. During maintenance, the air bags can be deflated to provide maintenance space, and maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the bottom structure of the vibration-absorbing boat according to an embodiment of the present invention;

[0025] Figure 2 It is a schematic structural diagram of a vibration-damping airbag in a vibration-damping boat bottom structure according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic structural diagram of a polymer wear-resistant plate in a bottom structure of a vibration-damping boat according to an embodiment of the present invention;

[0027] Figure 4 A side view of the bottom structure of a vibration-damping boat according to an embodiment of the present invention;

[0028] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0029] Figure 6 It is a schematic structural diagram of a clamp in a vibration-damping boat bottom structure according to an embodiment of the present invention;

[0030] Figure 7 A cross-sectional view of a clamp in a vibration-damping boat bottom structure according to an embodiment of the present invention;

[0031] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0032] Description of reference numerals:

[0033] 1. Vibration-damping airbag; 101. Central airbag; 102. Side airbag; 103. Bilge airbag; 104. Side airbag; 2. Polymer wear-resistant plate; 201. Straight wear-resistant plate; 202. Transition wear-resistant plate; 3. Main hull; 4. U-shaped shackle; 5. Eye nut; 6. Wire rope; 7. Clamp; 8. Bolt; 9. Nut; 10. Spring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0035] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0036] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0037] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a vibration-damping boat bottom structure and an amphibious boat.

[0038] like Figure 1 As shown, a vibration-damping bottom structure provided by an embodiment of the present invention is mainly installed at the bottom of the main hull of an amphibious boat. The rear half of the bottom of the main hull is a flat bottom, which gradually rises from the midship to the bow, similar to a sled. The power part of the amphibious boat is propelled by an air propeller and can travel in a variety of interface environments.

[0039] A vibration-damping boat bottom structure provided by an embodiment of the present invention comprises: a vibration-damping airbag 1 and a polymer wear-resistant plate 2, wherein the vibration-damping airbag 1 and the polymer wear-resistant plate 2 are both located at the bottom of a main hull 3, and the vibration-damping airbag 1 is located between the polymer wear-resistant plate 2 and the main hull 3. The main hull 3 is made of aluminum alloy or fiberglass.

[0040] The vibration-damping airbag 1 is a cylindrical structure, and its extension direction is from the stern to the bow. There are multiple vibration-damping airbags 1, which are arranged in the left-right direction of the main hull 3. The shape of the vibration-damping airbag 1 follows the bottom line of the main hull 3, and is curved in the length direction. Its bending position is located at the position of the vibration-damping airbag 1 from the midship to the bow relative to the main hull, and its bending shape is also the same as the curvature of the bottom of the main hull 3 from the midship to the bow, so that it can be attached to the bottom of the boat and connected with other airbags to form an airbag vibration-damping layer.

[0041] There are multiple polymer wear-resistant plates 2, which are laid in sequence in a cross-stacked manner along the direction from the tail end to the bow end of the main hull 3, and their shapes follow the bottom line of the main hull 3. The left and right sides of the polymer wear-resistant plates 2 are fixed to the left and right sides of the main hull 3.

[0042] like Figure 6 As shown, a plurality of vibration-damping airbags 1 are sleeved with a clamp 7 on the outside to fix the vibration-damping airbags 1. The clamps 7 are all arranged at the position of the flat bottom section of the main hull 3 and connected to the main hull 3.

[0043] Specifically, the number of the clamps 7 is 1 to 3.

[0044] In this embodiment, the bottom structure of the boat adopts air bags as a buffer layer, and the outermost layer is coated with a polymer polyethylene plate as a wear-resistant layer. The polymer polyethylene plate is laid in a scale-like manner, and the two sides are flexibly connected to the side of the hull by steel wire ropes. The overall vibration reduction performance is more superior. After being equipped on amphibious boats, it can provide a better-performing and longer-life means of transportation for disaster relief, material transportation or scientific investigation for my country's northern border and polar regions; and the shock-absorbing components mainly use air bags, which have the advantages of low manufacturing and maintenance costs. During maintenance, the air bags can be deflated to provide maintenance space, which is convenient for maintenance.

[0045] The clamp can fix the airbag tightly in a predetermined position. During the operation of the amphibious boat, especially in the case of complex land-water conversion, high-speed driving, and wind and wave impact, the shock-absorbing airbag 1 may be displaced or shaken due to various external forces. The existence of the clamp effectively limits the unnecessary movement of the airbag, ensuring that it is always in the correct working position, thereby ensuring the stability and reliability of the shock-absorbing system.

[0046] Specifically, Figure 2 As shown, the multiple vibration-damping airbags 1 include multiple middle airbags 101, multiple side airbags 102, two bilge airbags 103 and two side airbags 104. The multiple middle airbags 101 are of equal length and are located in the middle of the bottom of the main hull 3; the multiple side airbags 102 are respectively located on both sides of the middle airbag 101, and their lengths gradually decrease from the middle to the two sides. The two bilge airbags 103 are respectively located on the outside of the side airbags 102 on both sides, and the outside of the side airbags 102 on both sides, i.e., the side airbags 102 on the left and right sides, are respectively far away from the middle airbag 101, and the length of the bilge airbag 103 is also the shortest one among the vibration-damping airbags. The two side airbags 104 are respectively located on the outside of the two bilge airbags 103, that is, the outermost sides of the multiple airbags arranged in the left-right direction, and extend along the side of the bottom of the main hull. The part located at the bow wraps the ends of the side airbags 102 and the bilge airbags 103, and the end located at one end of the bow is arranged next to the end of the middle airbag 101 located at one end of the bow.

[0047] Specifically, Figure 3 As shown, the plurality of polymer wear-resistant plates 2 include a plurality of straight wear-resistant plates 201 and a plurality of transition wear-resistant plates 202. The straight wear-resistant plates 201 are located below the flat bottom section of the bottom of the main hull 3, and the transition wear-resistant plates 202 are located below the bent section of the bottom of the main hull 3. The straight wear-resistant plates 201 and the transition wear-resistant plates 202 are laid in a cross-stacked manner.

[0048] Specifically, the material of the shock-absorbing airbag 1 is Hypalon tape, with a thickness of 1.2 mm, a working pressure of 16 kPa, and a maximum pressure resistance of 48 kPa.

[0049] Specifically, the polymer wear-resistant plate 2 is made of polymer polyethylene with a thickness of 8 mm. It has strong wear resistance, can effectively resist long-term friction, reduce wear, thereby extending service life and reducing maintenance and replacement costs.

[0050] Specifically, the overlapping parts between adjacent polymer wear-resistant plates 2 have the same overlapping width, so that the adjacent polymer wear-resistant plates 2 can work better together when subjected to force.

[0051] In this embodiment, the shock-absorbing airbag 1 can provide buoyancy in the water and support and cushioning on the ice surface. In addition, the polymer wear-resistant plates 2 are cross-stacked and arranged in a fish scale shape, and when subjected to external forces, they can also effectively absorb external impacts through deformation.

[0052] Optionally, a connecting ear is provided at the end of the shock-absorbing airbag 1, and multiple shock-absorbing airbags 1 are fixedly connected by passing a connecting rope or steel wire through the connecting ear, and the ends of multiple shock-absorbing airbags 1 can also be fixedly connected to the main hull 3 by connecting ropes or steel wires.

[0053] In this optional embodiment, the vibration-damping airbags are fixedly connected by connecting ropes or steel wires, so that the multiple vibration-damping airbags can form an organic whole. When the amphibious boat is vibrated, the vibration-damping airbags can work together to share and absorb the vibration energy, thereby avoiding the problem of excessive local vibration or uneven vibration-damping effect that may occur when a single vibration-damping airbag acts alone, thereby improving the stability and reliability of the entire vibration-damping system.

[0054] Alternatively, if Figure 4 As shown, fixing holes are provided on the left and right sides of the polymer wear-resistant plate 2 and the front end of the polymer wear-resistant plate 2 corresponding to the bow of the main hull 3, and corresponding through holes are also provided at positions corresponding to the above-mentioned fixing holes on the main hull 3. Steel wire ropes are passed through the fixing holes and the through holes in turn to fix the polymer wear-resistant plate 2 on the main hull 3.

[0055] In this optional embodiment, by fixing with steel wire ropes, the external forces generated by shaking, vibration, etc. during the navigation of the ship can be effectively withstood, ensuring that the position of the polymer wear-resistant plate 2 on the main hull 3 is relatively fixed and will not easily shift or fall off, thereby ensuring that the wear-resistant plate can continue to play its wear-resistant protective role.

[0056] Alternatively, if Figure 5 As shown, a plurality of U-shaped shackles 4 are evenly spaced on the left and right sides of the polymer wear-resistant plate 2, and a plurality of lifting ring nuts 5 are evenly spaced on the left and right sides of the main hull 3, and the number and position of the U-shaped shackles 4 correspond to the lifting ring nuts 5; the steel wire rope 6 passes through the U-shaped shackles 4 and the lifting ring nuts 5 alternately in turn and is tightened, thereby fixing the polymer wear-resistant plate 2 on the main hull 3.

[0057] Specifically, the U-shaped shackle 4 is a U-shaped shackle of M8 specification, and the eye nut 5 is an eye nut of M8 specification.

[0058] In this optional embodiment, when the amphibious boat is deformed, such as when entering or exiting the water from the ice surface, when the hull structure is deformed due to the change in force, the wear-resistant plate can be adaptively adjusted in position as the hull is deformed, avoiding excessive stress concentration during the deformation process due to excessive fixation, thereby damaging the wear-resistant plate or the hull structure, and always maintaining good wear resistance. In addition, the polymer wear-resistant plate 2 can also limit the vibration-damping airbag 1.

[0059] Optionally, a pad is installed on the inner surface of the clamp 7. The shape of the pad is the same as the shape of the outer side of the multiple damping airbags 1 after being connected. It can be attached to the outer side of the damping airbags 1 to play a fixing role. The pad is preferably a rubber pad; in addition, soft plastic can also be selected as the pad material, such as polyurethane (PU) material, which has the characteristics of high elasticity, high strength and wear resistance. The thickness of the pad is usually between 5 mm and 25 mm. For ship damping airbags that are subjected to greater impact, thicker pad materials will be selected to provide better buffering performance.

[0060] In this optional embodiment, the pad has several important functions: first, it can increase the friction between the clamp and the airbag to prevent the airbag from sliding when subjected to vibration or other external forces; second, the rubber pad can act as a buffer to prevent the clamp from directly contacting the airbag and causing damage to the airbag surface; in addition, the rubber pad can also make up for the tiny gap that may exist between the clamp and the airbag to a certain extent, making the fixation tighter.

[0061] Alternatively, if Figure 7 and Figure 8 As shown, a bolt 8 is fixed to the bottom of the main hull 3. An opening is provided on the clamp 7, and the end of the bolt 8 passes through the opening on the clamp 7 and is connected to the nut 9. A spring 10 is sleeved on the bolt 8, and the spring 10 is located between the bottom of the main hull 3 and the clamp 7.

[0062] Specifically, the bolts 8 are fixed to the bottom of the main hull 3 by welding.

[0063] Specifically, washers are provided at the upper and lower ends of the spring 10 , and the opening diameter of the clamp 7 is larger than the diameter of the bolt 8 and smaller than the diameter of the nut 9 .

[0064] In this optional embodiment, during the operation of the amphibious boat, even in the face of complex working conditions, such as severe turbulence, wave impact, etc., the bolt 8 can effectively prevent the clamp 7 and the shock-absorbing airbag 1 from shifting or loosening, thereby ensuring the stability of the shock-absorbing system. Under complex working conditions, the spring 10 itself is elastically deformed to convert the instantaneous strong impact force into a relatively mild force transmitted to the clamp 7 and the shock-absorbing airbag 1, thereby avoiding the impact force directly acting on the clamp 7 and the shock-absorbing airbag 1 to cause premature damage, while also reducing the impact on the main hull 3 and protecting the entire hull structure. The setting of the opening size on the clamp 7 can ensure that the clamp has a certain degree of freedom of movement in the diameter direction of the shock-absorbing airbag 1.

[0065] Optionally, the opening on the clamp 7 is disposed between the adjacent middle airbag 101 and the side airbag 102 to avoid collision or interference with the shock-absorbing airbag 1 .

[0066] In this optional embodiment, the opening is arranged at a position that can effectively utilize the gap space between the airbags, making it easier for installers to pass the bolt 8 through the opening of the clamp 7 and connect it with the nut 9, and making it easier for maintenance personnel to approach and operate related components during regular inspection or maintenance.

[0067] An amphibious boat provided in an embodiment of the present invention includes the vibration-damping boat bottom structure as described above.

[0068] The beneficial effects of an amphibious boat of this embodiment relative to the prior art are the same as those of the above-mentioned vibration-damping boat bottom structure, which will not be described in detail here.

[0069] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A vibration-damping boat bottom structure, characterized in that: include: A vibration-damping airbag (1) and a polymer wear-resistant plate; the vibration-damping airbag (1) and the polymer wear-resistant plate are located at the bottom of the main hull (3), and the vibration-damping airbag (1) is located between the polymer wear-resistant plate (2) and the main hull (3); The vibration-damping airbag (1) is a cylindrical structure, and its extension direction is from the stern to the bow of the main hull (3); the vibration-damping airbag (1) is multiple in number and is arranged along the left-right direction of the main hull (3); the shape of the vibration-damping airbag (1) follows the bottom line of the main hull (3); The number of the polymer wear-resistant plates (2) is plural, and the plurality of polymer wear-resistant plates (2) are laid in sequence in a cross-stacked manner along the direction from the rear end to the front end of the main hull (3), and the shape follows the bottom line of the main hull (3); the left and right sides of the polymer wear-resistant plates (2) are fixed to the left and right sides of the main hull (3); A clamp (7) is sleeved on the outer sides of the plurality of vibration-damping airbags (1); the clamp (7) is arranged at the position of the flat bottom section of the main hull (3) and is connected to the main hull (3); The plurality of vibration-damping airbags (1) include a plurality of middle airbags (101), a plurality of side airbags (102), two bilge airbags (103) and two side airbags (104); the plurality of middle airbags (101) are of equal length and are located in the middle of the bottom of the main hull (3); the plurality of side airbags (102) are respectively located on both sides of the middle airbag (101), and the length of the side airbags (102) gradually decreases from the middle to the two sides; the two bilge airbags (103) are located in the middle of the bottom of the main hull (3); The airbags (103) are respectively located outside the side airbags (102) on both sides; the two side airbags (104) are respectively located outside the two bilge airbags (103); the side airbags (104) extend along the side of the bottom of the main hull (3); a portion of the side airbags (104) located at the bow wraps around the ends of the side airbags (102) and the bilge airbags (103); and the end portion located at one end of the bow is arranged next to the end portion of the middle airbag (101) located at one end of the bow; The plurality of polymer wear-resistant plates (2) include a plurality of straight wear-resistant plates (201) and a plurality of transition wear-resistant plates (202), wherein the straight wear-resistant plates (201) are located below the flat bottom section of the bottom of the main hull (3), and the transition wear-resistant plates (202) are located below the bent section of the bottom of the main hull (3); A bolt (8) is fixed to the bottom of the main hull (3), and an opening is provided on the clamp (7); an end of the bolt (8) passes through the opening on the clamp (7) and is connected to a nut (9); a spring (10) is sleeved on the bolt (8), and the spring (10) is located between the bottom of the main hull (3) and the clamp (7); Gaskets are provided at the upper and lower ends of the spring (10), and the diameter of the opening on the clamp (7) is larger than the diameter of the bolt (8) and smaller than the diameter of the nut (9).

2. The vibration-damping boat bottom structure according to claim 1, characterized in that: The end of the vibration-damping airbag (1) is provided with a connecting ear, and a connecting rope or a steel wire is passed through the connecting ear to fix and connect a plurality of vibration-damping airbags (1).

3. The vibration-damping boat bottom structure according to claim 1, characterized in that: The left and right sides of the polymer wear-resistant plate (2) and the front end of the polymer wear-resistant plate (2) corresponding to the bow of the main hull (3) are provided with fixing holes, and corresponding through holes are provided at positions on the main hull (3) corresponding to the fixing holes. The steel wire rope (6) passes through the fixing holes and the through holes at corresponding positions in sequence to fix the polymer wear-resistant plate (2) on the main hull (3).

4. The vibration-damping boat bottom structure according to claim 1, characterized in that: A plurality of U-shaped shackles (4) are arranged at equal intervals on the left and right sides of the polymer wear-resistant plate (2), and a plurality of lifting eye nuts (5) are arranged at equal intervals on the left and right sides of the main hull (3), wherein the number and position of the U-shaped shackles (4) correspond to those of the lifting eye nuts (5); a steel wire rope (6) is passed through the U-shaped shackles (4) and the lifting eye nuts (5) alternately in sequence, thereby fixing the polymer wear-resistant plate on the main hull (3).

5. The vibration-damping boat bottom structure according to claim 1, characterized in that: A pad is installed on the inner surface of the clamp (7), and the shape of the pad is the same as the shape of the outer side after the plurality of vibration-damping airbags (1) are connected.

6. An amphibious boat, characterized in that: The invention comprises the vibration-damping boat bottom structure as claimed in any one of claims 1 to 5.

Images