CN215043453U

CN215043453U - Ship bottom structure

Info

Publication number: CN215043453U
Application number: CN202121517141.2U
Authority: CN
Inventors: 麦树雄
Original assignee: Guangxi Wuzhou Win Xin Shipbuilding Co ltd
Current assignee: Guangxi Wuzhou Win Xin Shipbuilding Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-07
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a ship bottom structure, belonging to the technical field of ship manufacturing, which can effectively reduce the resistance between the ship bottom and the water in the running process of the ship body and has the characteristics of convenient operation and control and fast speed; the utility model provides a ship bottom structure, includes the hull, wherein, the rear portion bottom surface of hull is equipped with ship bottom friction surface, ship bottom friction surface be V die cavity, the open end of ship bottom friction surface is arranged towards the rear end of hull, the blind end of ship bottom friction surface is equipped with the inlet port, the inlet port pass through trachea and hull upper portion intercommunication.

Description

Ship bottom structure

Technical Field

The utility model relates to a shipbuilding's technical field, more specifically says, especially relates to a ship bottom structure.

Background

The pursuit of speed is increasing for boats as a means of transportation on water. When the ship moves forward in water, the ship is subjected to gravity, buoyancy, resistance and thrust generated by a power device of the ship, wherein the gravity and the buoyancy are a pair of balance forces in the vertical direction, the resistance applied to the ship body is horizontal force or can be decomposed into horizontal force, and the thrust of the ship is horizontal force. When the ship advances in water, a large resistance is generated between the bottom of the ship and the water due to the viscosity between the bottom of the ship and the water, and a large amount of kinetic energy is consumed for advancing the ship body in order to overcome the resistance between the bottom of the ship and the water. Some existing ship bottom structures are provided with an inverted V-shaped air guide groove 10 at the middle position of the ship bottom in order to reduce the resistance between the ship bottom and water, as shown in fig. 1, when the advancing speed of the ship body reaches a certain value, a vacuum chamber is formed in the air guide groove, so that the resistance between the ship bottom and the water is reduced, and the ship body is accelerated more quickly. Therefore, it is desired to design a ship bottom structure that can reduce the resistance between the ship bottom and the water at any time without being affected by the driving speed value of the ship body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hull bottom structure, this hull structure can effectively reduce the resistance between hull bottom and the water at the hull in-process of traveling, have control convenient, fast characteristics.

The utility model adopts the technical scheme as follows:

the utility model provides a ship bottom structure, includes the hull, wherein, the rear portion bottom surface of hull is equipped with ship bottom friction surface, ship bottom friction surface be V die cavity, the open end of ship bottom friction surface is arranged towards the rear end of hull, the blind end of ship bottom friction surface is equipped with the inlet port, the inlet port pass through trachea and hull upper portion intercommunication.

Furthermore, an inflating device is also arranged on the air pipe.

Furthermore, the number of the air inlet holes is two, and the two air inlet holes are symmetrically arranged at the closed end of the ship bottom friction surface.

Furthermore, a screen sheet is arranged on the air inlet hole.

Furthermore, the top surface of the ship bottom friction surface is two inclined surfaces extending towards the two sides of the ship body in an inclined mode, and each inclined surface corresponds to one air inlet hole.

Furthermore, a plurality of flow distribution plates are further arranged on the bottom surface of the front portion of the ship body, and the flow distribution plates extend in the front-back direction of the ship body.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

the utility model discloses a ship bottom structure, through the ship bottom friction surface that sets up the opening and arrange towards the hull rear end in the rear portion bottom surface of hull, and the blind end at ship bottom friction surface sets up the inlet port, the inlet port passes through trachea and hull upper portion intercommunication, can be through trachea and inlet port like this toward the air of initiative income in the ship bottom friction surface, at the hull in-process of traveling, the stern blister flows away the structure, form the air bead of a lot of smallness in hull rear portion bottom surface, thereby greatly reduced ship bottom and the resistance between the water, it is more convenient to control, the hull is accelerated also fast.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic structural view of the bottom of a prior art hull;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a rear view of the present invention.

Wherein: 10-air guide groove, 1-ship body, 2-ship bottom friction surface, 3-air inlet and 4-flow distribution plate.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Referring to fig. 2 and 3, the utility model discloses a ship bottom structure, including hull 1, wherein, the rear portion bottom surface of hull 1 is equipped with ship bottom friction surface 2, ship bottom friction surface 2 be the V die cavity, the open end of ship bottom friction surface 2 is arranged towards the rear end of hull 1, the blind end of ship bottom friction surface 2 is equipped with inlet port 3, inlet port 3 communicate through trachea and hull upper portion. Through the hull rear portion bottom surface at hull 1 set up the hull bottom friction surface 2 that the opening was arranged towards the hull rear end, and set up inlet port 3 at the blind end of hull bottom friction surface 2, inlet port 3 passes through trachea and hull upper portion intercommunication, can be through trachea and inlet port 3 air of initiatively discharging in the hull bottom friction surface 2 like this, at the hull in-process of traveling, the stern forms the bubble and flows away the structure, form the air bead of a lot of minimums in hull rear portion bottom surface, thereby greatly reduced ship bottom and the resistance between the water, it is more convenient to control, the hull is accelerated also fast.

The air pipe is also provided with an inflating device, and when the air supply requirement on the ship bottom friction surface 2 cannot be met through a natural ventilation air supply mode after the speed of the ship body is increased, the air can be supplied to the air pipe through the inflating device, so that the number of air beads in the ship bottom friction surface 2 is increased.

The two air inlet holes 3 are symmetrically arranged at the closed end of the ship bottom friction surface 2, the air displacement of the two air inlet holes 3 is larger, and the effect is better.

The air inlet 3 is provided with the screen mesh, air sent into the ship bottom friction surface 2 can be better dispersed through the dispersion of the screen mesh, more fine air beads are formed, and foreign matters can be effectively prevented from entering the ship bottom friction surface 2 to influence the exhaust effect.

The top surface of hull bottom friction surface 2 is two inclined planes that extend to the slope of hull both sides, every the inclined plane all correspond an inlet port 3, can disperse the air that two inlet ports 3 exhaust on the inclined plane that corresponds one side like this, dispersion effect is better.

The anterior bottom surface of hull 1 still is equipped with a plurality of flow distribution plates 4, the flow distribution plate extend along the hull fore-and-aft direction and arrange, a plurality of flow distribution plates 4 can reduce the resistance between anterior bottom surface of hull and the water.

The above description is only for the preferred embodiment of the present invention, and all modifications, equivalents, improvements and the like made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a ship bottom structure, includes hull (1), its characterized in that, the rear portion bottom surface of hull (1) is equipped with ship bottom friction surface (2), ship bottom friction surface (2) be the V die cavity, the open end of ship bottom friction surface (2) is arranged towards the rear end of hull (1), the blind end of ship bottom friction surface (2) is equipped with inlet port (3), inlet port (3) communicate through trachea and hull upper portion.

2. The bottom structure of claim 1, wherein said air tube further comprises an air pump.

3. A ship bottom structure according to claim 1, characterized in that said air intake holes (3) are two, and two of said air intake holes (3) are symmetrically arranged at the closed end of the friction surface (2) of the ship bottom.

4. A bottom structure according to claim 1, 2 or 3, wherein said air intake holes (3) are provided with mesh sheets.

5. A bottom structure according to claim 3, wherein the top surface of the friction surface (2) is formed by two inclined surfaces extending obliquely to the sides of the hull, each of said inclined surfaces corresponding to one of the air intake holes (3).

6. A bottom structure according to claim 1, wherein the bottom surface of the front part of the hull (1) is further provided with a plurality of flow distribution plates (4) extending in the fore-and-aft direction of the hull.