Catamaran

Abstract

The utility model discloses a catamaran which comprises a ship bottom forming an independent air chamber, side ship bodies, a keel located at the bottom of the ship bottom and a detachable tail plate arranged close to the tail of the ship bottom. The ship bottom comprises a ship bottom main plate and a front head bottom plate which is located at the position of the ship bow and connected with the ship bottom main plate to be warped upwards. The ship bottom main plate and the front head bottom plate mutually form an independent air chamber and are in double connection through connecting strip gluing and heat sealing welding. The side hulls are connected with the hull bottom through zippers; the bow end of the keel forms a wave breaking head in transition fit with the front bottom plate; according to the utility model, the split independent air chamber is designed to be lighter and beneficial to ensuring safety; the keels can increase buoyancy and enhance water breaking performance, so that driving is faster and more stable; the zippers between the inflatable plates are detachable, so that the inflatable plates are convenient to disassemble and assemble and are easier to recover after being disassembled, and are easier to carry and transfer; the space utilization rate is increased through the simple hull design, and dining and entertainment are facilitated; the dependence on a wharf and a dock is greatly reduced, and the production efficiency is favorably improved.

Description

Technical Field

[0001] The utility model relates to a hull, in particular to a catamaran, and belongs to the field of ships. Background Art

[0002] The current water sports market is experiencing growing demand, and the production process for space fabrics has matured. Customers are increasingly demanding products and are seeking novelty. A catamaran, as the name suggests, is a vessel composed of two separate hulls joined horizontally. Compared to monohulls, catamarans are more resistant to stronger waves and offer a more stable sailing experience. This has proven popular with customers and holds significant market potential.

[0003] Currently, yachts on the market are primarily constructed from rigid materials like aluminum alloy and fiberglass. These materials are difficult to disassemble and store, forcing boats to be moored and stored at docks or dedicated docking facilities. These facilities often incur additional mooring management fees, increasing the cost of ownership. Furthermore, boats made from rigid materials like aluminum alloy and fiberglass are expensive and heavy, often requiring trailers for transportation, significantly reducing their portability.

[0004] Inflatable catamarans exist in the field, but the vast majority of existing inflatable catamarans utilize manually powered valves, resulting in very low wavebreaking capabilities. For example, the inflatable catamaran disclosed in Publication (Announcement) No. CN216102643U comprises a hull assembly, a bottom support, and a stern support. The hull assembly includes two spaced-apart side hulls and a bow support connected at both ends to the bow portions of the two side hulls. Both the side hulls and the bow support are inflatable structures. The bottom support is connected to the two side hulls, and the stern support is connected at both ends to the stern portions of the two side hulls. This inflatable catamaran is essentially a manually powered valve, with the side hulls being inflatable columns. Its wavebreaking capabilities are very poor, and the excessively long and narrow sterns of the side hulls make the sterns more susceptible to wave disturbances, increasing the hull's sway amplitude and affecting navigational stability. Consequently, this structural solution suffers from low wavebreaking capabilities, large sway amplitude, and poor navigational stability. It is unsuitable for powerboats and is also inconvenient to disassemble and install. Utility Model Content

[0005] In order to solve the deficiencies existing in the above technologies, the utility model provides a catamaran.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a catamaran, comprising a bottom forming an independent air chamber, side hulls located on the left and right sides of the bottom, a keel located at the bottom of the bottom, and a detachable transom provided near the rear of the bottom;

[0007] The bottom of the ship includes a main bottom plate and a fore bottom plate at the bow that is connected to the main bottom plate and tilted upwards. The main bottom plate and the fore bottom plate form independent air chambers and are double-connected by gluing and heat-sealing welding.

[0008] The side hulls are connected to the bottom of the boat by zippers;

[0009] The bow end of the keel forms a transition to the wave-breaking head of the bow bottom plate.

[0010] Furthermore, the edges of the bottom and side hulls are respectively heat-sealed and welded by PVC edge banding strips.

[0011] Furthermore, the bottom mainboard is a flat bottom structure, and the angle formed between the bottom mainboard and the front bottom plate is 150°±5°.

[0012] Furthermore, the edges of the bottom mainboard and the front bottom board and their respective top surfaces also form connecting edges with arc transitions, and the connecting edges of the bottom mainboard and the front bottom board are jointly sewn with zippers that are detachably connected to the side hull.

[0013] Furthermore, the position of the lowest end of the bottom mainboard does not exceed the position of the lowest end of the side hull, and the position of the highest end of the front bottom plate does not exceed the position of the highest end of the side hull.

[0014] Furthermore, the tail portion of the mainboard of the bottom of the ship forms a power machinery installation position that intrudes into the main body thereof.

[0015] Furthermore, a flat bottom surface adapted to the length of the bottom mainboard is formed on the bottom side of the side hull, and a tilted head surface adapted to the tilting angle of the front bow bottom board is integrally formed on the bow side of the flat bottom surface.

[0016] Furthermore, the keel is glued to the longitudinal center line of the bottom of the ship, the diameter of the wave breaking head gradually decreases toward the free end thereof, and the wave breaking head is glued to the bottom surface of the front bottom plate.

[0017] Furthermore, the detachable tail plate is assembled at a position flush with the inner side of the power machinery installation position, and a gap for avoiding installation is opened on the detachable tail plate.

[0018] A catamaran has a split connection structure that is easy to disassemble and install, and the split independent air chamber design is more lightweight and also helps to ensure safety. Even if a single air chamber is damaged, the catamaran as a whole will not lose its buoyancy. The keel design of the bottom of the boat increases the overall buoyancy, making the boat better able to break through water during sailing, and the boat travels faster and more steadily. The zipper detachable design is adopted between the inflatable plates, which is convenient for disassembly and assembly, and the disassembled split structure is more convenient to recycle and easier to carry and transfer. The simple hull design increases space utilization and can be used for dining and entertainment. The application greatly reduces the dependence on docks and shipyards, and is also conducive to improving production efficiency and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0020] Figure 2 This is an assembly diagram of the utility model Figure 2 .

[0021] Figure 3 This is an assembly diagram of the utility model Figure 3 .

[0022] Figure 4 This is a schematic diagram of the bow of the utility model.

[0023] In the figure: 10, bottom of the ship; 11, bottom mainboard; 12, front bottom plate; 13, PVC edge banding; 14, connecting edge; 15, power machinery installation position;

[0024] 20. Side hull; 21. Flat bottom; 22. Warped nose;

[0025] 30. keel; 31. wave-breaking head;

[0026] 40. Removable tailgate; 41. Avoid installation gaps. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] like Figure 1-4 As shown together, the present embodiment relates to a catamaran, specifically an inflatable catamaran equipped with a power machinery. The catamaran of the present embodiment is easy to assemble and disassemble and convenient to carry. It includes a bottom 10 that forms independent air chambers, side hulls 20 located on the left and right sides of the bottom 10, and a keel 30 located at the bottom of the bottom 10. That is to say, the bottom 10, the side hulls 20, and the keel 30 are all independently inflated structures. It can be understood that the number of the side hulls 20 is two. In addition, it also includes a detachable tail plate 40 arranged near the tail of the bottom 10.

[0029] On this basis, the bottom 10 includes a bottom main plate 11 and a forward bottom plate 12 located at the bow position and connected to the bottom main plate 11. The bottom main plate 11 and the forward bottom plate 12 form independent air chambers with each other and the two are doubly connected by gluing and heat welding with connecting strips. The bottom main plate 11 and the forward bottom plate 12 are inflated independently of each other, which is conducive to further reducing the trouble of carrying when disassembling, and is conducive to reducing the cost and life problems of collision damage; the bottom 10, side hull 20 and keel 30 of this embodiment all use hollow cloth as the molding material to improve the structural strength.

[0030] The side hull 20 of this embodiment is connected to the bottom 10 through a zipper. This embodiment does not show a specific schematic diagram of the zipper. The zipper is not a specific technical feature that needs to be protected in this application. Those skilled in the art can customize a suitable zipper according to the size. In addition, for convenience, the zipper can also be replaced by an adhesive strip, and the adhesive strip bonding also facilitates disassembly.

[0031] In order to enhance the support, buoyancy and anti-swaying ability of this embodiment, a keel 30 is provided. In order to improve the wave-breaking ability of the keel 30 , the bow end of the keel 30 forms a wave-breaking head 31 that transitions to fit the front bottom plate 12 .

[0032] Preferably, the edges of the bottom 10 and the side hull 20 are heat-sealed and welded with PVC edge banding strips 13 respectively. Prior to this, the bottom 10 and the side hull 20 are inflated. This operation is a prior art and is not explained in this application. During the actual processing, in order to ensure the sealing and structural strength of the sealing position, the bottom 10 and the side hull 20 are each heat-sealed and welded with the PVC edge banding strips 13, and then heat-sealed and welded with the PVC sealing strips in turn, and are glued together with the PVC protective strips.

[0033] The bottom main plate 11 has a flat bottom structure, and the angle formed between the bottom main plate 11 and the front bottom plate 12 is 150°±5°.

[0034] The edges of the bottom main board 11 and the front bottom board 12 and their respective top surfaces also form a connecting edge 14 with an arc transition. The connecting edges 14 of the bottom main board 11 and the front bottom board 12 are jointly sewn with a zipper strip that is detachably connected to the side hull 20. It is needless to say that the chain piece of another zipper strip that cooperates with each other is sewn at the matching position of the side hull 20, so that a zipper connection is achieved between the bottom 10 and the side hull 20, and it can be clearly seen that the present application facilitates installation / disassembly through the zipper.

[0035] The lowest end of the bottom main plate 11 does not exceed the lowest end of the side hull 20. In other words, the lowest end of the side hull 20 exceeds the bottom surface of the bottom main plate 11. Therefore, the lower end of the side hull 20 touches the water before the bottom main plate 11 and touches the water deeper. This effectively enhances the wave-breaking ability of the side hull 20. The highest end of the front bottom plate 12 does not exceed the highest end of the side hull 20.

[0036] The tail portion of the ship bottom main plate 11 forms a power machinery installation position 15 that intrudes into the main body thereof. The power machinery installation position 15 is used to provide an avoidance position for the installation of an engine / motor.

[0037] A flat bottom surface 21 that is adapted to the length of the bottom mainboard 11 is formed on the bottom side of the side hull 20, and a tilted head surface 22 that is adapted to the tilting angle of the front bow bottom plate 12 is integrally formed on the bow side of the flat bottom surface 21. This is beneficial to enhancing the wave-breaking ability of the side hull 20, and the tail of the side hull 20 of this embodiment does not exceed the bottom mainboard 11. By making the two basically flush, the stern's ability to resist disturbances in waves is improved, thereby enhancing the overall anti-swaying performance of the ship.

[0038] The keel 30 is glued to the longitudinal centerline of the hull 10, and the diameter of the wave breaker 31 gradually decreases towards its free end, so the wave breaker 31 has low water resistance and excellent wave-breaking ability. The wave breaker 31 is glued to the bottom surface of the bow bottom plate 12, making it more fit and secure.

[0039] The detachable tail plate 40 is assembled at a position flush with the inner side of the power machinery installation position 15. The detachable tail plate 40 is provided with an avoidance installation gap 41. The detachable tail plate 40 is used for the adaptive installation of the engine / motor. In the usage scenario of this embodiment, it is specifically used for the on-hook installation of the engine / motor.

[0040] On the basis of the above disclosed structure of this embodiment, in order to achieve the purpose of rain and sun protection in the actual application of this embodiment, there is a design form of adding a detachable tent; and in order to increase the shipping convenience of this embodiment, an inflatable tugboat can be customized and adapted; the above structural settings are the specific real states that have been selectively customized and applied in actual implementation of this application, and are hereby explained.

[0041] The present application discloses a catamaran with a split connection structure that is easy to disassemble and install. The split independent air chamber design is more lightweight and also helps to ensure safety. Even if a single air chamber is damaged, the catamaran as a whole will not lose its buoyancy. The keel design of the bottom of the ship increases the overall buoyancy, making the ship better able to break through water during sailing, and the ship travels faster and more steadily. The zipper detachable design is adopted between the inflatable panels, which is convenient for disassembly and assembly. At the same time, the disassembled split structure is more convenient to recycle and easier to carry and transfer. The simple hull design increases space utilization and can be used for dining and entertainment. The present application greatly reduces the dependence on docks and shipyards, and is also conducive to improving production efficiency and has strong adaptability.

[0042] The above-mentioned implementation manner is not a limitation of the present invention, and the present invention is not limited to the above-mentioned examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A catamaran, characterized in that: The invention comprises a bottom (10) forming an independent air chamber, side hulls (20) located on the left and right sides of the bottom (10), a keel (30) located at the bottom of the bottom (10), and a detachable tail plate (40) arranged near the tail of the bottom (10); The bottom (10) comprises a bottom main plate (11) and a fore-end bottom plate (12) located at the bow and connected to the bottom main plate (11). The bottom main plate (11) and the fore-end bottom plate (12) form independent air chambers and are doubly connected by gluing and heat-sealing welding with connecting strips. The side hull (20) is connected to the bottom (10) via a zipper; The bow end of the keel (30) forms a wave-breaking head (31) that transitionally matches the front bottom plate (12).

2. The catamaran according to claim 1, characterized in that: The edges of the bottom (10) and the side hull (20) are respectively heat-sealed and welded by PVC edge banding strips (13).

3. The catamaran according to claim 1, characterized in that: The bottom main plate (11) is a flat bottom structure, and the angle formed between the bottom main plate (11) and the front bottom plate (12) is 150°±5°.

4. The catamaran according to claim 3, characterized in that: The edges of the bottom mainboard (11) and the front bottom board (12) and their respective top surfaces also form arc-shaped transition connecting edges (14), and the connecting edges (14) of the bottom mainboard (11) and the front bottom board (12) are jointly sewn with a zipper strip that is detachably connected to the side hull (20).

5. The catamaran according to claim 3, characterized in that: The position of the lowest end of the bottom main plate (11) does not exceed the position of the lowest end of the side hull (20), and the position of the highest end of the front bottom plate (12) does not exceed the position of the highest end of the side hull (20).

6. The catamaran according to claim 5, characterized in that: The tail portion of the bottom main plate (11) forms a power machinery installation position (15) that intrudes into the main body of the ship.

7. The catamaran according to claim 1, characterized in that: The bottom side of the side hull (20) is formed with a flat bottom surface (21) that matches the length of the bottom main board (11), and the bow side of the flat bottom surface (21) is integrally formed with a tilted head surface (22) that matches the tilted angle of the front bow bottom board (12).

8. The catamaran according to claim 1, characterized in that: The keel (30) is glued to the longitudinal center line of the bottom (10), the diameter of the wave-breaking head (31) gradually decreases toward its free end, and the wave-breaking head (31) is glued to the bottom surface of the front bottom plate (12).

9. The catamaran according to claim 6, characterized in that: The detachable tail plate (40) is assembled at a position flush with the inner side of the power machinery installation position (15), and a vacant space (41) for avoiding installation is opened on the detachable tail plate (40).

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