A waterborne float

Abstract

The embodiment of the present application provides a water floating body, which comprises: a floating body comprising a hollow box body, wherein the floating body comprises opposite front and back surfaces; a plurality of convex parts and a plurality of concave parts which are dispersedly arranged on the front and back surfaces; one or more pull ears which are arranged on the side surface of the floating body and / or the top surface of the floating body and / or between the side surface of the floating body and other surfaces of the floating body; and one or more filling holes which are arranged on the floating body and through which foam material can be filled in the floating body; wherein the plurality of concave parts of the front or back surface of the floating body are adapted to accommodate the plurality of corresponding convex parts of the back or front surface of the floating body. The water floating body in the present application has the advantages of wind and wave resistance, large buoyancy and strong working stability.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic technology, and in particular to a floating body on water. Background Technology

[0002] Solar energy is a clean energy source. Using photovoltaic (PV) power plants to directly convert solar energy into electricity is a highly efficient way to utilize solar energy. Floating PV refers to building PV power plants on idle water surfaces. Floating PV power plants have many advantages, such as not occupying land resources, reducing water evaporation, and avoiding algae growth, and have broad development prospects.

[0003] As the scale of floating solar power continues to expand, it becomes necessary to install box-type transformers on the water surface near the solar power station to reduce the amount of cables used and lower costs. However, traditional floating bodies have disadvantages such as large weight, low buoyancy, and poor wave resistance, making them unable to provide stable support for box-type transformers. Furthermore, if the surface of existing floating bodies is damaged, they will lose buoyancy, making it easy for the box-type transformer to fall into the water and cause damage. Summary of the Invention

[0004] To address the technical problems existing in the prior art, the present invention proposes a floating body, comprising: a floating body including a hollow box, wherein the floating body includes a front and a back side; a plurality of protrusions and a plurality of recesses, which are distributed on the front and the back side; one or more pull tabs, which are disposed between the side and / or the top surface and / or the side and other surfaces of the floating body; and one or more filling holes, which are disposed on the floating body, through which foam material can be filled into the floating body; wherein the plurality of recesses on the front or back side of the floating body are adapted to accommodate the plurality of corresponding protrusions on the back or front side of the floating body.

[0005] As described above, the multiple protrusions and multiple recesses are alternately distributed on the front and back of the floating body, and multiple channels are maintained between the multiple protrusions and multiple recesses when the multiple recesses are accommodated within the multiple protrusions.

[0006] As described above, the height of the protrusion in the floating body is 14-16mm, and the width of the channel is 45mm-55mm.

[0007] As described above, the floating body material includes HDPE material and the foam material includes polyurethane foam material.

[0008] As described above, the top surface of the floating body includes vent holes, and the vent holes include a waterproof and breathable membrane.

[0009] As described above, the floating body has a first lug extending from the top to near the middle on its side. The first lug includes one or more mounting holes, and reinforcing ribs are evenly distributed around the mounting holes.

[0010] The floating body described above further includes: an undulating structure disposed on the side of the floating body and below the first pull lug, the undulating structure having an M-shaped cross-section.

[0011] As described above, the floating body has a first groove on its front and back sides, and a second groove on its opposite sides.

[0012] As described above, the second limiting groove on the side of the floating body includes a second pull lug.

[0013] As described above, the thickness of the floating body is 3-6 mm, and the buoyancy of the floating body is 900-1200 kg.

[0014] The floating body in this application has multiple protrusions and multiple recesses on two opposite sides. The multiple recesses can accommodate multiple protrusions, increasing the bonding force between the two floating bodies. The floating body can be made of HDPE material, which has advantages such as wear resistance, light weight, and long service life. The floating body in this application includes foam material, so even if the outer surface is damaged, it will not affect its use. Attached Figure Description

[0015] The preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings, wherein:

[0016] Figure 1A This is a schematic diagram of the structure of a floating body according to an embodiment of this application;

[0017] Figure 1B This is a schematic diagram of the front structure of a floating body according to an embodiment of this application;

[0018] Figure 1C This is a schematic diagram of the structure of the back of a floating body according to an embodiment of this application;

[0019] Figure 2A This is one of the structural schematic diagrams of a floating body unit according to an embodiment of this application;

[0020] Figure 2B This is a second schematic diagram of the structure of a floating body unit according to an embodiment of this application;

[0021] Figure 3A This is one of the structural schematic diagrams of a floating body array according to an embodiment of this application;

[0022] Figure 3B This is a second schematic diagram of the structure of a floating array according to an embodiment of this application;

[0023] Figure 3C yes Figure 3B A magnified view of a portion of the image. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the following detailed description, reference can be made to the accompanying drawings, which form part of this application and illustrate specific embodiments of the present application. In the drawings, similar reference numerals describe substantially similar components in different figures. Specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to implement the technical solutions of the present application. It should be understood that other embodiments may also be utilized, or structural, logical, or electrical changes may be made to the embodiments of the present application.

[0026] To address the aforementioned issues, this application presents a redesigned floating body. This floating body features multiple protrusions and recesses on its two opposite sides. The recesses accommodate the protrusions, preventing relative movement between multiple floating bodies. The interior of the floating body is filled with foam material, ensuring its normal operation even if the outer surface is damaged. This floating body offers advantages such as easy assembly, structural stability, large size, high buoyancy, and light weight, thus meeting the requirements for supporting load boxes.

[0027] Figure 1A This is a schematic diagram of the structure of a floating body according to an embodiment of this application. Figure 1B This is a schematic diagram of the front structure of a floating body according to an embodiment of this application. Figure 1C This is a schematic diagram of the rear structure of a floating body according to an embodiment of this application. Figure 1A As shown, the floating body 100 includes a floating body 110, one or more lugs 120, multiple protrusions 130, and multiple recesses 140. The floating body 110 can be a hollow box, and its material can be HDPE. The floating body 110 made of HDPE material has advantages such as wear resistance, light weight, and long service life.

[0028] In one embodiment of this application, the length of the floating body 110 is 1300-1500mm, the width is 700-800mm, and the height is 1000-1200mm. Preferably, the length of the floating body 100 is 1400mm, the width is 750mm, and the height is 1100mm. The thickness of the floating body 100 is 3-6mm. The thicker the floating body, the heavier it is; the weight of the floating body is 16-28KG. In one embodiment, the buoyancy of the floating body 100 is 900-1200KG. The volume of the floating body 100 in this application is significantly larger than that of existing floating bodies, and it is easy to combine with each other, thus meeting the support requirements of heavy box-type transformers.

[0029] The pull lug 120 includes a first pull lug 121, which is symmetrically disposed on two opposite sides of the floating body 110. The first pull lug 121 can be a plate-like structure, located at the middle position of the side of the floating body 110, extending from the top position to the middle position of the side of the floating body 110. By increasing the contact area with the side of the floating body 110, the first pull lug 121 improves the bonding strength between the first pull lug 121 and the floating body 110. Positioning the first pull lug 121 at the middle position of the floating body 110 ensures that the first pull lug 121 is subjected to uniform force on the floating body 110, avoiding the problem of deformation of the floating body 110 due to tension. In one embodiment, the thickness of the pull lug is 5mm-10mm.

[0030] In one embodiment of this application, the first pull lug 121 includes one or more mounting holes 122 and reinforcing ribs 123. The mounting holes 122 are used to engage with a fixing device to secure the water-floating body 100. The length of the mounting holes 122 in the vertical direction is greater than its length in the horizontal direction. The reinforcing ribs 123 are evenly distributed around the mounting holes 122. By adding the reinforcing ribs 123, the tensile strength of the first pull lug 121 can be enhanced.

[0031] like Figure 1B and 1C As shown, multiple protrusions 130 and multiple recesses 140 are distributed on the front side of the floating body 110, and multiple protrusions 130 and multiple recesses 140 are distributed on the back side of the floating body 110. The multiple recesses 140 on the front or back side of the floating body 110 are adapted to accommodate multiple corresponding protrusions 140 on the back or front side of the floating body 110. When two adjacent floating bodies 100 are stacked on top of each other, the multiple protrusions 130 and multiple recesses 140 on the front side of the floating body 110 interact with the multiple protrusions 130 and multiple recesses 140 on the back side of the adjacent floating body 110, preventing relative movement between the floating bodies 100 and avoiding separation, thus improving the stability of the two floating bodies 100 when combined.

[0032] According to one embodiment of this application, a plurality of protrusions 130 and a plurality of recesses 140 are alternately distributed on the front and back sides of the floating body 110, with a fixed distance between adjacent protrusions 130 and a fixed distance between adjacent recesses 140. (See reference...) Figure 1A and Figure 1B The protrusions 130 are rectangular bumps, and the recesses 140 are rectangular grooves. A fixed distance is maintained between adjacent protrusions 130 and adjacent recesses 140. When multiple recesses 140 are accommodated within multiple protrusions 130, multiple channels are maintained between the protrusions 130 and recesses 140 to prevent water residue from remaining between the floating bodies 100. The height of the protrusions is 14-16 mm, and the width of the channels is 45 mm-55 mm.

[0033] Those skilled in the art should understand that Figure 1A-1C This illustration only shows one embodiment of the arrangement of multiple protrusions and recesses on the front and back of the floating body of this application. Those skilled in the art should understand that the protrusions and recesses of the floating body of this application can also be arranged in other ways. For example, the sizes of the protrusions and recesses are not all the same, the intervals between the protrusions and recesses can be different, or their distribution on the front and back of the floating body can also be in other ways.

[0034] In one embodiment of this application, a plurality of protrusions 130 are interference-fitted with a plurality of recesses 140 at corresponding positions, which can strengthen the bonding force between adjacent floating bodies 100. Furthermore, the provision of a plurality of protrusions 130 and a plurality of recesses 140 on the front and back of the floating body 110 can enhance the compressive strength of the floating body itself.

[0035] The floating body 100 also includes one or more filling holes 150, which can be located on the top surface of the floating body 110. Through the filling holes 150, when foam material is filled into the floating body 100, the through holes 160 on the side of the floating body 110 and the vent holes 170 on the top surface of the floating body 110 can be opened. After filling is completed, the filling holes 150 and through holes 160 are sealed, leaving only the vent holes 170 connected to the outside of the floating body 100. The foam material includes polyurethane foam. Filling the floating body 100 with polyurethane foam increases its overall strength, compressive strength, resistance to deformation, and resistance to thermal expansion and contraction. Furthermore, filling the floating body 100 with polyurethane foam provides buoyancy even if the floating body 110 is damaged and water enters, improving the operational stability of the floating body 100.

[0036] According to one embodiment of this application, the vent 170 includes a waterproof and breathable membrane that allows only gas to pass through but not liquid. When the floating body 100 is compressed, its internal pressure will change. Gas exchange through the vent 170 can ensure the balance of air pressure inside and outside the floating body 100.

[0037] According to one embodiment of this application, the floating body 110 includes a limiting groove 180, which includes a first limiting groove 181 disposed on the front and back sides of the floating body 110. The opposite sides of the floating body 110 include a second groove 182. The first limiting groove 181 and the second limiting groove 182 are at approximately the same height. Both the first limiting groove 181 and the second limiting groove 182 are disposed in the lower middle part of the floating body 110 and are used to cooperate with a limiting device after the floats are assembled, thereby providing a more stable float structure. For example, the first limiting groove 181 and the second limiting groove 182 are used to accommodate a limiting frame, confining the limiting frame within the limiting groove 180, preventing displacement between the limiting frame and the floating body, and improving the stability of the fixation between multiple floating bodies 100.

[0038] According to one embodiment of this application, the floating body 110 includes an undulating structure 190 disposed on the side of the floating body 110 and below the first pull lug 121. The undulating structure 190 has an "M" shaped cross-section, with high sides and a low middle. The undulating structure 190 is disposed in the middle position on the side of the floating body 110, increasing the compressive strength of the floating body 100.

[0039] According to another embodiment of this application, the lower parts of the two sides of the floating body 110 are symmetrically provided with second pull ears 124. The second pull ears 124 can be disposed in the second limiting groove 182. The outer surfaces of the second pull ears 124 and the first pull ears 121 are on the same vertical plane as the undulating structure 190. The second pull ears 124 are similar to the first pull ears 121, including mounting holes and reinforcing ribs, which will not be described in detail here.

[0040] Figure 2A This is one of the structural schematic diagrams of a floating body unit according to an embodiment of this application. For example... Figure 2A As shown, the float unit 200 includes multiple floating bodies 100 and a first connector 210. The first connector 210 is connected to one or more lugs of the multiple floating bodies 100, thereby connecting the stacked floating bodies 100 in series. In one embodiment, the float unit 200 includes 2-5 floating bodies 100. The more floating bodies 100 in the float unit 200, the greater the buoyancy it can provide, while reducing the material used in the first connector 210 of each float unit 200, thus saving costs.

[0041] According to one embodiment of this application, the first connector 210 includes a first connecting plate disposed in a first recessed area 111 on the top surface of the float unit 200. When the first connecting plate is disposed in the first recessed area 111 on the top surface of the float unit 200, the height of the first connecting plate is lower than or approximately equal to the top surface of the float unit 200. Designing the first connector 210 as a plate structure can increase the support area of ​​the float unit, distribute the force, and ensure the support stability of the float unit. In one embodiment, the top surface of the float 100 is a plane, and the first recessed area 111 is disposed at one end of the top surface of the float. The height of the first recessed area 111 is less than the height of the middle of the top surface of the float 100. When the first connecting plate is disposed in the first recessed area 111, the height of the first connecting plate is lower than or approximately equal to the height of the top surface of the float, thereby improving the flatness of the top surface of the float unit 200.

[0042] According to one embodiment of this application, the float unit 200 further includes a second connector 220. One or more lugs of the plurality of floating bodies 100 are configured to connect to the second connector 220, thereby connecting the stacked plurality of floating bodies 100 in series. The second connector 220 includes a second connecting plate disposed in a second recessed area 112 of the float unit. When the second connecting plate is disposed in the second recessed area 112 on the top surface of the float unit 200, the height of the second connecting plate 220 is lower than or approximately equal to the top surface of the float unit 200. The second recessed area 112 is disposed at the other end of the top surface of the floating body 100. The first recessed area 111 and the second recessed area 112 are respectively disposed at both ends of the top surface of the floating body 100. When the first recessed area 111 and the second recessed area 112 are respectively provided with the first connecting plate and the second connecting plate, the balance of the float unit can be ensured, and the capsizing can be avoided.

[0043] According to one embodiment of this application, one or more pull lugs 120 are connected to a first connector 210 and / or a second connector 220 via a connector 230. The connector 230 includes a bent first portion and a bent second portion. The first portion is fixedly connected to the pull lug 120, and the second portion is fixedly connected to a first connecting plate or a second connecting plate. The first portion can be fixedly connected to a mounting hole on the first pull lug 121 using bolts, and the second portion is a horizontal connecting plate, which is fixedly connected to the first connecting plate or the second connecting plate using bolts.

[0044] In one embodiment of this application, the first connecting plate is connected to the first recessed area 111 by means of adhesion, adsorption, or mechanical connection, and / or the second connecting plate is connected to the second recessed area 112 by means of adhesion, adsorption, or mechanical connection. This can further strengthen the bonding strength between the multiple floating bodies 100 in the floating body unit 200 and ensure the stability of the floating body unit 200.

[0045] Multiple floating body units can be combined to form a floating body array. The upper surface of the floating body array can be flat, capable of supporting heavy objects. A floating body array composed of multiple floating body units can bear weights of up to several tons. How to combine the floating body units together without changing the shape of the floating body array when bearing heavy loads is a problem that urgently needs to be solved. This application designs a novel limiting frame, which improves the operational stability of the floating body array.

[0046] Figure 2B This is a second schematic diagram of the structure of a floating body unit according to an embodiment of this application. Figure 2B As shown, the floating body unit can also connect multiple floating bodies 100 in series using connectors 240. Specifically, the first lugs 121 between the floating bodies are fixedly connected by connectors 240, and the second lugs 124 between the floating bodies are fixedly connected by connectors 240, thereby connecting multiple floating bodies in series into a floating body unit. Figure 2B The example shows three floating bodies 100 connected in series. Those skilled in the art should understand that any number of floating bodies can be connected in series according to actual usage.

[0047] The connector 240 can be a steel wire rope with connecting holes at both ends. These connecting holes coincide with the mounting holes on the lugs and are secured with bolts, thus fixing two adjacent floating bodies 100 together. The steel wire rope flexibly connects the floating bodies 100, ensuring that the distance between them is dynamically balanced when they float on the water, reducing the force exerted by the steel wire rope and improving the stability of the connection.

[0048] Series-connected floating units, laid on the water surface, can form an artificial passageway. These units can be secured to the water surface with steel cables, and their upper surfaces are walkable. Series-connected floating units can also be positioned around floating photovoltaic and / or floating platforms to prevent wave splashes or ice floes from impacting the photovoltaic equipment and / or the floating platform, improving the safety of the photovoltaic equipment. Furthermore, series-connected floating units can also be used to support cables, securing them to the upper surface of the floating units to prevent contact between the cables and the water, improving the operational safety of the cables. Those skilled in the art will understand that series-connected floating units can also be applied in other working scenarios, without limitation.

[0049] Figure 3A This is one of the schematic diagrams of a floating array structure according to an embodiment of this application; Figure 3B This is a second schematic diagram of a floating array structure according to an embodiment of this application; Figure 3C yes Figure 3B A magnified view of a portion of the image. For example... Figure 3AAs shown, the float array 300 includes multiple float units 200 and a limiting frame. Each float unit 200 includes multiple floating bodies 100 that are stacked and attached to each other. The limiting frame defines multiple float unit spaces, and the multiple float units 200 are disposed in the multiple float unit spaces.

[0050] The limiting frame includes multiple interconnected outer beams 310, which can enclose a rectangular floating unit space. When multiple floating units 200 are arranged in the floating unit space, the multiple outer beams 310 are embedded in the first limiting groove 181 and / or the second limiting groove 182 of the multiple floats of the floating unit 200. By embedding the outer beams 310 in the first limiting groove 181 and / or the second limiting groove 182, the floating units fit more tightly together, preventing swaying caused by water flow fluctuations and affecting the stability of the floating array.

[0051] In one embodiment of this application, the depth of the first limiting groove 181 and / or the second limiting groove 182 is 10mm-80mm; the distance between the first limiting groove 181 and / or the second limiting groove 182 and the top surface of the float is 0.7m-0.9m. The first limiting groove 181 and / or the second limiting groove 182 are disposed in the lower middle part of the float, so that the limiting frame applies force in the lower middle part of the float, gathering the floats together. The connecting piece applies force above the float, so that the float unit has a limiting effect both above and below, making the multiple floats in the float unit fit together more tightly.

[0052] like Figure 3B As shown, the limiting frame also includes one or more inner beams 320 connected to the outer beam 310. The multiple inner beams 320 are embedded in the first limiting grooves 181 and / or second limiting grooves 182 of the multiple floats of the float unit 200. The multiple inner beams 320 include multiple first inner beams 321, multiple second inner beams 322, and multiple third inner beams 323. The multiple first inner beams 321, second inner beams 322, and third inner beams 323 are respectively connected to the outer beam 310, dividing multiple float unit spaces. Each float unit space contains one or more float units. The spacing between adjacent float spaces is 0.4m-0.6m.

[0053] In one embodiment, the second inner beam 322 and the third inner beam 323 are symmetrically arranged laterally along the outer beam 310. The length of the third inner beam 323 is shorter than that of the second inner beam 322. The combined use of the second inner beam 322 and the third inner beam 323 can save the amount of inner beam 320 used and reduce the assembly difficulty of the limiting frame. Multiple outer beams 310 and multiple inner beams 320 are fixedly connected by bolts passing through fixing holes, which are racetrack-shaped. When the outer beams 310 and inner beams 310 are arranged longitudinally, the longitudinal length of the fixing hole is greater than the transverse length; when the outer beams 310 and inner beams 310 are arranged laterally, the transverse length of the fixing hole is greater than the longitudinal length.

[0054] refer to Figure 3A Multiple outer beams 310 and multiple inner beams 320 enclose multiple floating body unit spaces. Each floating body unit space contains two floating body units, and each floating body unit includes two floats. Those skilled in the art will understand that the number of floating body units in a floating body unit space and the number of floats in each floating body unit can vary depending on the weight and center of gravity of the cargo box. In one embodiment, a floating body unit space includes 1-3 floating body units 200, and each floating body unit 200 includes 2-5 floats.

[0055] like Figure 3C As shown, the float array 300 also includes one or more columns 330. The columns 330 are disposed between the first connector 210 or the second connector 220 and the outer beam 310. The columns 330 are used to connect the limiting frame to the first connector 210 or the second connector 220, preventing the limiting frame from detaching from the float unit 200 under gravity. The column 330 includes a first part, a second part, and a third part. The first and second parts are perpendicular to the third part, respectively, and are located at both ends of the third part. The first part is connected to the first connector 210 or the second connector 220, and the third part is connected to the limiting frame. According to one embodiment of this application, when the column 330 is disposed near the connector 230, the contact portion between the column 330 and the connector 230 is fixedly connected, improving the bonding force between the column 330 and the float array 300. According to one embodiment of this application, when the column 330 is located near the connector 230, the third part of the column 330 is fixedly connected to the first pull ear to replace the connector 230 being fixedly connected to the first pull ear 121, thereby reducing the number of connectors 230 used and reducing costs.

[0056] In summary, the floating body in this application has multiple protrusions and multiple recesses on its two opposite sides. The multiple recesses can accommodate multiple protrusions, increasing the bonding force between the two floating bodies. The floating body can be made of HDPE material, which has advantages such as wear resistance, light weight, and long service life. Furthermore, the floating body also includes one or more filling holes, through which foam material can be filled inside the floating body. Even if the outer surface of the floating body is damaged, it can still provide buoyancy, improving the operational stability of the floating body.

[0057] The above embodiments are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various changes and modifications without departing from the scope of the invention. Therefore, all equivalent technical solutions should also fall within the scope of the invention.

Claims

1. A waterborne float, characterized in that, The water floating body comprises: a floating body comprising a hollow box, wherein the floating body comprises opposite front and back surfaces; a plurality of convex portions and a plurality of concave portions distributed on the front and back surfaces; one or more pull ears arranged on the side surface of the floating body and / or the top surface of the floating body and / or between the side surface of the floating body and other surfaces of the floating body; and one or more filling holes arranged on the floating body, through which a foam material can be filled in the floating body; wherein the plurality of convex portions protrude from the front and back surfaces of the floating body, the plurality of concave portions are recessed in the front and back surfaces of the floating body, the plurality of convex portions and the plurality of concave portions are alternately distributed on the front and back surfaces of the floating body, the plurality of concave portions on the front or back surface of the floating body are adapted to accommodate the plurality of corresponding convex portions on the back or front surface of the floating body, and the plurality of convex portions are in interference fit with the plurality of concave portions in the corresponding positions; the front and back surfaces of the floating body comprise first limiting grooves, and the opposite side surfaces of the floating body comprise second limiting grooves, the heights of the first limiting grooves and the second limiting grooves are equivalent, and the first limiting grooves and the second limiting grooves are arranged at the middle and lower parts of the floating body and are adapted to cooperate with a limiting device after the floating body is combined with a floating body, the limiting device applies a force at the middle and lower parts of the floating body to gather a plurality of water floating bodies together; the water floating body is used for placing a box-type transformer on water, the length of the floating body is 1300-1500 mm, the width of the floating body is 700-800 mm, the height of the floating body is 1000-1200 mm, the front and back surfaces of the floating body are perpendicular to the water surface, the areas of the front and back surfaces of the floating body are greater than the area of the top surface of the floating body, the top surface of the floating body has a recessed area for placing a first connecting plate, and the first connecting plate is used for connecting with one or more pull ears of a plurality of water floating bodies to connect the plurality of water floating bodies in series. When the plurality of concave portions accommodate the plurality of convex portions, a plurality of channels are reserved between the plurality of convex portions and the plurality of concave portions.

2. A watercraft according to claim 1, characterised in that The height of the convex portion is 14-16 mm, and the width of the channel is 45 mm-55 mm.

3. A watercraft according to claim 2, characterised in that The material of the floating body comprises an HDPE material, and the foam material comprises a polyurethane foam material.

4. The watercraft of claim 1, wherein, The top surface of the floating body comprises air-permeable holes, and the air-permeable holes comprise a waterproof air-permeable film.

5. The watercraft of claim 1, wherein, The side surface of the floating body comprises a first pull ear extending from the top to the middle part, the first pull ear comprises one or more mounting holes, and reinforcing ribs are uniformly distributed around the mounting holes.

6. The watercraft of claim 1, wherein, Further comprising:

7. A watercraft according to claim 6, characterised in that an undulating structure arranged below the side surface of the floating body and the first pull ear, and the cross section of the undulating structure is M-shaped. The second limiting groove of the side surface of the floating body comprises a second pull ear.

8. The watercraft of claim 1, wherein, The thickness of the floating body is 3-6 mm, and the buoyancy of the water floating body is 900-1200 Kg.

9. The watercraft of claim 1, wherein, ​

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