CN219077412U

CN219077412U - Ship body and deep V-shaped folded angle half-small waterplane double-body ship

Info

Publication number: CN219077412U
Application number: CN202222431263.0U
Authority: CN
Inventors: 林纯鑫; 李炎锋; 刘旭
Original assignee: Afai Southern Shipyard Panyu Guangzhou Ltd
Current assignee: Afai Southern Shipyard Panyu Guangzhou Ltd
Priority date: 2021-09-18
Filing date: 2022-09-14
Publication date: 2023-05-26
Anticipated expiration: 2032-09-14
Also published as: CN113734349A; CN115503869A

Abstract

The utility model discloses a ship body and a deep V-shaped folded angle half-small waterplane double-hull ship, and belongs to the technical field of ships. The ship body comprises a first submerged body, a second submerged body, a first anti-rolling bilge keel, a second anti-rolling bilge keel, a first solid wood structure, a second solid wood structure and a V-shaped structure, wherein the longitudinal section shapes of the bottoms of the first submerged body and the second submerged body are all V-shaped structures. The two included angle sides of the V-shaped structure are flat line-shaped, so that the wave-making resistance is small, and the rapid navigation of the ship is facilitated; the comprehensive reaction force of the first anti-rolling bilge keels and the second anti-rolling bilge keels forces the ship body to be righted and erected, the wind and wave resistance of the ship body is enhanced, and the wave resistance, the seaworthiness and the riding comfort of the ship are improved; a propeller tunnel is formed between the bottom of the stern of the ship body and the tail of the solid wood structure, so that the ship body has soft beach-setting capacity during refund, and the propeller and rudder blade are protected.

Description

Ship body and deep V-shaped folded angle half-small waterplane double-body ship

Technical Field

The utility model relates to the technical field of ships, in particular to a ship body and a deep V-shaped folded angle half-small waterplane double-hull ship.

Background

Along with the coming high-speed development of offshore wind power construction, the total accumulated installed amount is increased year by year, the scale, the yield and the marine transportation requirements of the offshore wind power plant are rapidly increased from the beginning near-shore wind power plant to the near-sea wind power plant, and the offshore wind power operation and maintenance ship is rapidly developed. However, existing ship types do not fully meet the ever-increasing operational requirements of offshore wind farm developers, owners and operators for newly built wind farms.

The development of the domestic wind power operation and maintenance ship is rapid in overall development potential. From simple yachts, traffic boats, tugboats used very near shore, to specialized monohull steel service vessels, to specialized high-speed aluminum alloy catamarans. However, in the prior art, a steel low-speed operation and maintenance ship is still mainly used, the voyage speed is about 10 knots, and a high-speed double-body aluminum alloy operation and maintenance ship, as shown in fig. 1, is still in a technical state of an offshore ship along the sea, although the voyage speed has been developed to a high voyage speed state of about 25 knots, the voyage resistance of the operation and maintenance ship for conveying personnel is about 2 meters.

The current stage of the ship has low navigational speed, small wind and wave resistance capability and poor riding comfort of passengers, so that passengers are very easy to seasickness, and part of the ships have no beach-sitting capability.

For this reason, it is highly desirable to provide a hull and deep V-folded half-small waterplane catamaran that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a ship body and a deep V-shaped folded angle half small waterplane double-body ship, which can enhance the wind and wave resistance of the ship and improve the wave resistance, seaworthiness and riding comfort.

In order to achieve the above object, the following technical scheme is provided:

a hull, comprising:

the double-sheet body comprises a first lower submerged body and a second lower submerged body, wherein the longitudinal section shapes of the bottoms of the first lower submerged body and the second lower submerged body are V-shaped structures;

the first anti-rolling bilge keels are arranged on one side, far away from the second submerged body, of the first submerged body in a protruding mode, and extend along the length direction of the first submerged body;

the second anti-rolling bilge keels are arranged on one side, far away from the first submerged body, of the second submerged body in a protruding mode, and extend along the length direction of the second submerged body;

the first anti-rolling bilge keels and the second anti-rolling bilge keels are positioned at the same height and are bilaterally symmetrical relative to the ship body;

the bottom of the first diving body is provided with a first solid wood structure which extends along the length direction of the first diving body;

the bottom of the second submerged body is provided with a second solid wood structure, and the second solid wood structure extends along the length direction of the second submerged body.

As an alternative scheme of the ship body, at the stem of the ship body, the longitudinal section shapes of the tops of the first submerged body and the second submerged body are concave circular arc structures, and the first anti-rolling bilge keels and the second anti-rolling bilge keels are arranged at deep V-shaped folding angle lines of the concave circular arc structures and the V-shaped structures.

As an alternative scheme of the ship body, the included angle between the concave circular arc-shaped structure and the deep V-shaped folding angle line of the V-shaped structure is gradually reduced from the bow to the stern along the length direction of the ship body, and the concave depth of the concave circular arc-shaped structure is gradually reduced.

As an alternative scheme of the ship body, the side, close to the second submerged body, of the first submerged body is also provided with the first anti-rolling bilge keels, and the side, close to the first submerged body, of the second submerged body is also provided with the second anti-rolling bilge keels.

As the alternative scheme of hull, first solid wood structure includes first portion, middle installation department and second portion, middle installation department is used for installing screw blade, first portion with the left and right sides of second portion is all symmetry to be provided with indent guiding gutter, the water conservancy diversion direction of indent guiding gutter just to screw blade.

As an alternative to the hull, the width of the smallest narrow faces of the first and second sections are each half the width of the intermediate mounting section.

As an alternative scheme of the ship body, the bottom of the stern of the ship body is concaved inwards to form a blade avoiding concave surface.

As an alternative scheme of the hull, a distance L1 between two points of the blade avoidance concave surface CD is 1.3 times of the diameter of the propeller blade, and a distance L2 between two points of the blade tip of the propeller blade and the vertex of the blade avoidance concave surface GH is not less than 0.2 times of the diameter of the propeller blade.

As an alternative to the hull, the angle E between the front end of the bow of the hull and the front deck surface is 90 degrees.

The deep V-shaped folded angle half-small waterplane double-hull ship comprises operation and maintenance equipment and the ship body according to any one of the above, wherein the operation and maintenance equipment is arranged on the ship body, and the ship body is a square stern.

Compared with the prior art, the utility model has the beneficial effects that:

according to the ship body provided by the utility model, the bottoms of the first submerged body and the second submerged body of the double-sheet body are respectively provided with the V-shaped structure, and the two included angle sides of the V-shaped structure are flat line-shaped, so that the ship body obtains proper stabilizing force in the sailing process, and particularly in a high-speed state of not less than 25 knots, the wave-making resistance is small, and the quick sailing of a ship is facilitated; a first anti-rolling bilge keel is arranged on one side, far away from the second submerged body, of the first submerged body, a second anti-rolling bilge keel is arranged on one side, far away from the first submerged body, of the second submerged body, the first anti-rolling bilge keel and the second anti-rolling bilge keel are positioned at the same height and are bilaterally symmetrical relative to the ship body, more ship body parts are immersed in water along with pitching and rolling of the ship, and the comprehensive reaction force of the first anti-rolling bilge keel and the second anti-rolling bilge keel forces the ship body to straighten and erect, so that the storm resistance of the ship body is enhanced, and the wave resistance, seaworthiness and riding comfort of the ship are improved; the bottom of the diving body is provided with a solid wood structure, a propeller tunnel is formed between the bottom of the stern of the hull and the tail of the solid wood structure, and the hull is enabled to have soft beach-setting capability during refund, so that the propeller and rudder blades are protected; the solid wood structure extends along the length direction of the first lower submerged body, so that flow resistance produced by adding the solid wood structure is reduced, and the ship speed is improved.

According to the deep V-shaped folded angle half-small waterplane double-hull ship provided by the utility model, as the ship is pitching and rolling, more ship body parts are immersed in water, the comprehensive reaction force of the first anti-rolling bilge keels and the second anti-rolling bilge keels forces the ship body to be righted and erected, the wind and wave resistance is strong, and the wave resistance, the navigabion and the travelling comfort of the ship are improved; the two included angle edges of the V-shaped structure are flat line-shaped, so that the ship body obtains proper stabilizing force in the sailing process, and particularly in a high-speed state of not less than 25 knots, the wave-making resistance is small, and the rapid sailing of the ship is facilitated; the bottom of the diving body is provided with the solid wood structure, so that a propeller tunnel is formed between the diving body at the tail part and the solid wood structure, and the boat body has the capability of soft beach to sit on the beach during ebb, protects the propeller and rudder blade, and gives consideration to the use of the shoal on the coast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a structure of a submerged body in the prior art;

FIG. 2 is a schematic view of a first perspective of a hull (propeller blades not shown) according to an embodiment of the present utility model;

FIG. 3 is a top view of a hull according to an embodiment of the utility model;

FIG. 4 is a front view of a hull according to an embodiment of the utility model;

FIG. 5 is a composite profile of the V-shaped and concave circular arc structures of the hull according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a structure of a hull from a second perspective (propeller blades not shown) according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a third perspective of the hull of an embodiment of the present utility model (propeller blades not shown);

FIG. 8 is a cross-sectional view of a first deadwood structure tail in an embodiment of the utility model;

FIG. 9 is a schematic view of a fourth view of a hull according to an embodiment of the present utility model;

FIG. 10 is a partial enlarged view at B in FIG. 9;

FIG. 11 is a rear view of a hull according to an embodiment of the present utility model;

FIG. 12 is an enlarged view of a portion of FIG. 11 at A;

FIG. 13 is a schematic view of a fifth perspective of the hull of an embodiment of the present utility model (propeller blades not shown);

fig. 14 is a schematic view of a square stern according to an embodiment of the present utility model.

Reference numerals:

100. an arc-shaped plate; 200. an inclined plate;

1. a double sheet body; 2. a first bilge keel; 3. a second bilge keel; 4. a first solid wood structure; 5. a second solid wood structure; 6. a propeller tunnel; 7. a V-shaped structure; 8. an inward concave circular arc structure; 9. deep V-fold line; 10. propeller blades; 20. a stern tube; 30. a stern shaft;

11. a first lower submerged body; 12. a second submerged body; 13. a bow; 131. a front deck surface; 14. a stern; 141. a rear deck surface; 15. the blade avoids the concave surface.

41. A first section; 42. an intermediate mounting portion; 43. a second section; 44. and a concave diversion trench.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In order to achieve the combination of rapidity, seafastness, operability and comfort, the offshore wind power operation and maintenance double-hull ship is applicable to offshore wind power operation and maintenance ships in offshore shoal, coastal and offshore navigation areas, and particularly high-performance offshore wind power operation and maintenance ships for offshore remote wind power fields, the embodiment provides a ship body and a deep V-folded half-small waterplane double-hull ship, and the specific contents of the embodiment are described in detail below with reference to fig. 2 to 14.

As shown in fig. 2 to 7, the hull comprises a double sheet 1, a first bilge keels 2, a second bilge keels 3, a first solid wood structure 4, a second solid wood structure 5 and a V-shaped structure 7. The double-sheet body 1 comprises a first lower submerged body 11 and a second lower submerged body 12, and the bottom longitudinal section shapes of the first lower submerged body 11 and the second lower submerged body 12 are V-shaped structures 7. The first anti-rolling bilge keels 2 are arranged on one side, far away from the second submerged body 12, of the first submerged body 11 in a protruding mode, and the first anti-rolling bilge keels 2 extend along the length direction of the first submerged body 11. The second anti-rolling bilge keels 3 are arranged on one side, away from the first submerged body 11, of the second submerged body 12 in a protruding mode, and the second anti-rolling bilge keels 3 extend in the length direction of the second submerged body 12. The first anti-rolling bilge keels 2 and the second anti-rolling bilge keels 3 are positioned at the same height and are bilaterally symmetrical relative to the ship body. The bottom of the first lower submerged body 11 is provided with a first solid wood structure 4, and the first solid wood structure 4 extends along the length direction of the first lower submerged body 11. The bottom of the second submerged body 12 is provided with a second solid wood structure 5, and the second solid wood structure 5 extends along the length direction of the second submerged body 12.

In short, the ship body provided by the utility model has the advantages that the bottoms of the first submerged body and the second submerged body of the double-sheet body 1 are respectively provided with the V-shaped structure, and the two included angle sides of the V-shaped structure are flat line-shaped, so that the ship body obtains proper stabilizing force in the sailing process, particularly in a high-speed state of not less than 25 knots, the wave-making resistance is small, and the quick sailing of the ship is facilitated; a first anti-rolling bilge keel is arranged on one side, far away from the second submerged body, of the first submerged body, a second anti-rolling bilge keel is arranged on one side, far away from the first submerged body, of the second submerged body, the first anti-rolling bilge keel and the second anti-rolling bilge keel are positioned at the same height and are bilaterally symmetrical relative to the ship body, more ship body parts are immersed in water along with pitching and rolling of the ship, and the comprehensive reaction force of the first anti-rolling bilge keel and the second anti-rolling bilge keel forces the ship body to straighten and erect, so that the storm resistance of the ship body is enhanced, and the wave resistance, seaworthiness and riding comfort of the ship are improved; a solid wood structure is arranged at the bottom of the submerged body, a propeller tunnel 6 is formed between the bottom of the stern of the ship body and the tail of the solid wood structure, and the ship body has soft beach-setting capacity during deliquescing, so that the propellers and rudder blades are protected; the solid wood structure extends along the length direction of the first lower submerged body, so that flow resistance produced by adding the solid wood structure is reduced, and the ship speed is improved.

Specifically, as shown in fig. 2, in this embodiment, the bow of the hull includes a pointed portion at the front end of the submerged body, and the sea water is separated by breaking the waves forward through the pointed portion, so that the sea water can flow through the left and right sides of the submerged body quickly, in this embodiment, no bulb is required, and the manufacturing difficulty and cost of the hull are reduced.

Further, as shown in fig. 4 and 5, at the bow of the hull, the longitudinal cross-sectional shapes of the tops of the first submerged body 11 and the second submerged body 12 are concave arc structures 8, and the first bilge keels 2 and the second bilge keels 3 are arranged at deep V-folded angle lines 9 of the concave arc structures 8 and the V-shaped structures 7. Specifically, near the middle front part of the deep V-shaped ship body, an inward concave circular arc-shaped structure 8 (an inward concave half small waterplane line type) is arranged according to the requirement of improving the wave resistance at the design waterplane height, so that the ship type has the wave resistance of the small waterplane line type, the rapidity of the deep V-shaped ship type is considered, and the ship type is a composite line type of the deep V-shaped ship type and the small waterplane line type.

It can be understood that the depth of the concave circular arc structure 8 can be properly adjusted according to the arrangement requirement of the bottom bin of the ship, so that the arrangement function of the ship is balanced, the navigational speed higher than that of the ship with a small waterplane plane can be obtained, and the wave resistance better than that of the ship with a conventional deep V-shaped angle can be obtained.

Specifically, as shown in fig. 5 in combination with fig. 6, in the present embodiment, the angle between the concave circular arc structure 8 and the deep V-shaped inflection line 9 of the V-shaped structure 7 gradually decreases from the bow 13 to the stern 14 of the hull along the length direction of the hull, and the concave depth of the concave circular arc structure 8 gradually decreases. Specifically, as shown in fig. 6, the concave circular arc structure 8 has a concave depth near the stern 14 of the ship of zero.

As shown in fig. 2, the front deck surface 131 has a height greater than the rear deck surface 141. The front deck surface 131 of the bow 13 is raised, so that the impact of waves on the bottom of the connecting bridge is reduced, and the capacity of safely propping against the foundation pile of the fan under the condition of 2.5m sea waves is achieved.

Further, as shown in fig. 13, the angle E between the front end of the bow 13 of the hull and the front deck surface 131 is 90 degrees. The bow 13 of the ship body is designed to be vertical, and under the condition of the same deck length, the design waterline is longer than that of the oblique bow, so that the water inlet angle of the waterline is reduced, the wave making resistance of the ship in high-speed navigation is reduced, the longitudinal volume is increased, the buoyancy reserve distribution is more reasonable, and the navigation state is more stable.

The ship disclosed by the utility model is integrated with a deep V-shaped folding angle line 9, a half-small waterplane bow 13 (namely, a vertical bow 13 with an inward concave circular arc structure 8), a square stern line, and designs of an inner and outer anti-bilge keel, an inner anti-shake bilge keel, a dead wood structure at the tail, an inward concave propeller tunnel 6 and the like of the double-sheet body 1, so that the rapidness of the ship is ensured, the seaworthiness and the passenger comfort of the ship are improved, the dead wood structure design not only protects the propeller and can adapt to shallow draft, but also has the capability of sitting beach, and the new ship can simultaneously consider the sails of different navigation areas such as offshore shoal, coastal navigation area and offshore navigation area and the like, thereby meeting the operation and maintenance requirements of high sea condition of rapid development of offshore wind power construction.

Further, as shown in fig. 4, a first anti-rolling bilge keel 2 is also arranged on one side of the first lower submerged body 11 close to the second lower submerged body 12, and a second anti-rolling bilge keel 3 is also arranged on one side of the second lower submerged body 12 close to the first lower submerged body 11. That is, at this time, the first bilge keels 2 are respectively arranged on the inner side and the outer side of the first submerged body 11, and the second bilge keels 3 are respectively arranged on the inner side and the outer side of the second submerged body 12. The anti-bilge keels are arranged on the inner side and the outer side of the first submerged body 11 and the second submerged body 12, so that the comprehensive reaction force is further increased, and the wave resistance and the travelling comfort of the ship body are improved.

In particular, the first and

second bilge keels

2 and 3 are located at the middle tail of the entire hull.

Further, the first anti-rolling bilge keels 2 and the second anti-rolling bilge keels 3 are of a folded angle structure. Specifically, the first anti-rolling bilge keels 2 and the second anti-rolling bilge keels 3 are of long strip plate structures, the first anti-rolling bilge keels 2 are arranged at an included angle with the surface of the first submerged body 11, and the second anti-rolling bilge keels 3 are arranged at an included angle with the surface of the first submerged body 11.

In other embodiments, the first and

second bilge keels

2 and 3 are each circular arc shaped. The circular arc-shaped structure here includes a circular shape or an elliptical shape.

Further, as shown in fig. 7 and 8, the first solid wood structure 4 includes a first portion 41, a middle mounting portion 42 and a second portion 43, the middle mounting portion 42 is used for mounting the propeller blade 10, the left and right sides of the first portion 41 and the second portion 43 are symmetrically provided with concave diversion trenches 44, and the diversion direction of the concave diversion trenches 44 is opposite to the propeller blade 10. Specifically, the diversion height of the concave diversion trench 44 is just opposite to the half of the radius of the propeller blade 10, so that the seawater can be conveniently diverted to the main rotation part of the propeller blade 10 directly, and the thrust of the propeller blade 10 to the hull is increased.

Specifically, as shown in fig. 9 and 10, the first portion 41 and the second portion 43 are both recessed toward the stem 13 of the hull by a certain depth, the middle mounting portion 42 is embedded with the stern shaft tube 20, the stern shaft 30 is rotatably disposed in the stern shaft tube 20, one end of the stern shaft 30 is in driving connection with the engine inside the hull, and the other end of the stern shaft 30 is provided with the propeller blade 10.

Further, as shown in fig. 8 to 13, the width of the smallest narrow surfaces of the first portion 41 and the second portion 43 is half of the width of the middle mounting portion 42, which is beneficial to the smoothness of the incoming flow of the propeller blade 10 and the improvement of the propulsion efficiency of the propeller blade 10.

As shown in fig. 10 to 12, further, a blade avoiding concave surface 15 is concaved in the bottom of the stern 14 of the hull. Specifically, the distance L1 between two points of the line shape of the blade avoiding concave surface 15 and the CD intersecting with the line shape of the ship bottom is set to be 1.3 times the diameter of the propeller blade 10, and the distance L2 between two points of GH between the tip of the propeller blade 10 and the apex of the blade avoiding concave surface 15 is not less than 0.2 times the diameter of the propeller blade 10. The blade avoiding concave surface 15 is arranged like an elliptical line. The concave surface 15 is designed to ensure that the installation angle of the axis of the stern shaft 30 is reduced, so that the propeller blade 10 has higher efficiency and effective thrust, and the line type of the propeller tunnel 6 with the structural modeling has more favorable wave resistance than the line type of the conventional bilge type bottom.

The embodiment also provides a deep V-folded half-small waterplane double-hull ship, which comprises operation and maintenance equipment and the ship body, wherein the operation and maintenance equipment is arranged on the ship body, and the ship body is a square stern. Specifically, as shown in fig. 13 and 14, the angle F between the rear end of the stern 14 of the hull and the rear deck 141 is 90 degrees, and the rear deck 141 is square in a plan view as a whole. The stern 14 adopts square stern, combines customization screw tunnel 6 and solid wood, and furthest reduces the influence of hull to screw efficiency to square stern increases buoyancy and displacement under the waterline to reduce boats and ships heave and roll degree, obtain better wave resistance, improve passenger's travelling comfort.

To sum up, the ship-type working principle is as follows: the ship body can obtain stabilizing force and minimum swing from sailing by adopting a deep V-shaped angle ship, the front part in the sheet body is designed by adopting a small half small water plane, the inner side and the outer side of the tail part in the sheet body are provided with anti-rolling bilge keels, more and more ship bodies and auxiliary bodies are immersed in water along with the pitching and rolling of the ship, the comprehensive reaction force of the ship body can force the ship body to rightly stand up, and the high-speed and low-speed bearing state of the ship is excellent in wave resistance.

The ship type technical effect: 1. the technology improves the comprehensive wave resistance of the ship, reduces the seasickness rate and improves the riding comfort of passengers; 2. the technology reduces the resistance of the ship, improves the navigational speed, reduces the oil consumption, improves the economy of the ship and prolongs the service life of the host machine; 3. the technology is designed by solid wood, has the capability of setting a soft beach in an intertidal zone and protects the propeller blade 10; 4. the propeller tunnel 6 is designed, the efficiency is improved by embedding the blades, and the maximum draft of the ship is reduced; 5. the technology has the advantages of low material cost: the ship is made of the same material and is completely integrated into the ship building process, and maintenance is not needed after installation.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. Hull, characterized in that it comprises:

the double-sheet body (1) comprises a first lower submerged body (11) and a second lower submerged body (12), wherein the longitudinal cross sections of the bottoms of the first lower submerged body (11) and the second lower submerged body (12) are of V-shaped structures (7);

the first anti-shake bilge keels (2) are convexly arranged on one side, far away from the second submerged body (12), of the first submerged body (11), and the first anti-shake bilge keels (2) extend along the length direction of the first submerged body (11);

the second anti-rolling bilge keels (3) are convexly arranged on one side, far away from the first submerged body (11), of the second submerged body (12), and the second anti-rolling bilge keels (3) extend along the length direction of the second submerged body (12);

the first anti-rolling bilge keels (2) and the second anti-rolling bilge keels (3) are positioned at the same height and are bilaterally symmetrical relative to the ship body;

the bottom of the first diving body (11) is provided with a first solid wood structure (4), and the first solid wood structure (4) extends along the length direction of the first diving body (11);

the bottom of the second submerged body (12) is provided with a second solid wood structure (5), and the second solid wood structure (5) extends along the length direction of the second submerged body (12).

2. The hull according to claim 1, characterized in that at the bow (13) of the hull, the top longitudinal cross-sectional shape of the first and second submerged bodies (11, 12) is an inward concave circular arc structure (8), the first and second bilge keels (2, 3) are arranged at the deep V-fold lines (9) of the inward concave circular arc structure (8) and the V-shaped structure (7).

3. Hull according to claim 2, wherein the angle between the concave rounded structure (8) and the deep V-fold line (9) of the V-shaped structure (7) decreases gradually from the bow (13) to the stern (14) along the length of the hull, and the concave depth of the concave rounded structure (8) decreases gradually.

4. A hull according to claim 3, characterized in that the side of the first lower submerged body (11) close to the second lower submerged body (12) is also provided with the first bilge keels (2), and the side of the second lower submerged body (12) close to the first lower submerged body (11) is also provided with the second bilge keels (3).

5. Hull according to any of claims 1-4, wherein the first solid wood structure (4) comprises a first part (41), a middle mounting part (42) and a second part (43), wherein the middle mounting part (42) is used for mounting the propeller blade (10), concave diversion trenches (44) are symmetrically arranged on the left and right sides of the first part (41) and the second part (43), and the diversion direction of the concave diversion trenches (44) is opposite to the propeller blade (10).

6. Hull according to claim 5, wherein the smallest narrow faces of the first portion (41) and the second portion (43) each have a width that is half the width of the intermediate mounting portion (42).

7. Hull according to claim 5, characterized in that the bottom of the stern (14) of the hull is recessed with a blade-avoiding concave surface (15).

8. The hull according to claim 7, characterized in that the distance L1 between the points CD of the blade avoidance concave surface (15) is 1.3 times the diameter of the propeller blade (10), and the distance L2 between the points GH between the tip of the propeller blade (10) and the apex of the blade avoidance concave surface (15) is not less than 0.2 times the diameter of the propeller blade (10).

9. Hull according to claim 5, characterized in that the angle E between the fore end of the hull bow (13) and the fore deck surface (131) is 90 degrees.

10. A deep V-angle half-small waterplane catamaran comprising an operation and maintenance device and a hull according to any of claims 1-9, said operation and maintenance device being arranged on said hull, said hull being a square stern.