CN202193174U

CN202193174U - Cruiser stern casing

Info

Publication number: CN202193174U
Application number: CN2011203007038U
Authority: CN
Inventors: 陈弘文
Original assignee: DONGGUAN JIETENG MARINE CO LTD
Current assignee: DONGGUAN JIETENG MARINE CO LTD
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2012-04-18
Anticipated expiration: 2021-08-18

Abstract

The utility model discloses a cruiser stern casing which comprises an upper casing and a lower casing, wherein a full load water line is arranged between the upper casing and the lower casing, the lower casing comprises a main body and a stern extending part formed through upward extension along the front end of the main body in a bending manner, the stern extending part is provided with a smooth curved surface, and the upper casing and the lower casing are integrally formed. The cruiser stern casing provided by the utility model is mainly designed for yachts cruising for long distance at a low speed, not only can the resistance force be effectively reduced, but also propulsive efficiency is increased, the pitching motion is reduced, and the navigation performance is improved, and the comfort level for passenger is enhanced.

Description

A kind of cruiser stern shell

Technical field:

The utility model relates to a kind of shell, refers in particular to a kind ofly not only can effectively reduce resistance, increase propulsion coefficient and reduce trim, and can improve navigation performance and increase the cruiser stern shell of occupant's comfort level.

Background technology:

At present, common ship stern shape has two kinds, and first kind is oval ship stern, in the stern of ship short stern is installed and stretches portion, is upwards expansion of ellipsoid more than the knuckle line, and it is bigger that the end spills the water surface, makes oar and rudder on the boats and ships be prone to be damaged; This stern type of the many employings of past inercant ships only can be seen oval ship stern now on some barge.Second kind is square ship stern, and stern has vertical or oblique stern transom plate, and the stern current can rather level areas leave hull, and running resistance is reduced, thus square ship stern be installed on usually on the high speed ship, like the ship of enforcing the law, warship etc.

The utility model content:

The purpose of the utility model is to overcome the deficiency of prior art; Aiming at yacht that the long distance of low speed cruises provides a kind of and not only can effectively reduce resistance, increase propulsion coefficient and reduce trim, and can improve navigation performance and increase the cruiser stern shell of occupant's comfort level.

In order to solve the technical matters of above-mentioned existence; The utility model adopts following technical proposals: a kind of cruiser stern shell; Comprise a upper shell and a lower house; Between upper shell and lower house, be provided with a load water line, wherein, lower house constitutes by a main body and along the stern portion of stretching that the body front end K/UP extends to form; Described upper shell and lower house are one-body molded.

Furthermore, in the technique scheme, the described stern portion of stretching has the curved surface of a fairing.

The utility model cruiser stern shell has following beneficial effect compared with prior art:

1, the stern portion of stretching of the utility model cruiser stern shell bottom has the curved surface of fairing, and stern is most of to be immersed in the water, has increased waterline length, and when navigate by water than jogging speed, stern fairing curved surface can be repaiied along stern and flow, and helps reducing ship resistance at boats and ships.

2, near the stern waterline the load water line extends backward in the utility model; The stern that formation one has the fairing curved surface is stretched portion; Compare common square ship stern and can more effectively reduce stern wave making resistance and viscous pressure resistance; In the long distance navigation of low speed, can effectively reduce the navigability of trim and raising boats and ships, be suitable for very much the low velocity displacement boat.

Description of drawings:

Fig. 1 is the block diagram of the utility model;

Fig. 2 is the scheme drawing of the utility model.

Description of reference numerals:

1 load water line, 2 upper shells, 3 lower houses, 31 main bodys

32 sterns are stretched portion's 4 tail vane bases, 5 curved surface grooves

The specific embodiment:

Below in conjunction with specific embodiment and accompanying drawing the utility model is further specified.

See also Fig. 1,2, a kind of cruiser stern shell comprises a upper shell 2 and a lower house 3, between upper shell 2 and lower house 3, is provided with a load water line 1.

Particularly, load water line 1 be boats and ships when the fully laden freedom is just floating in the hydrostatic, the intersection of the molded hull surface and the water surface is also promptly corresponding to the waterline of full load displacement.Lower house 3 is by a main body 31 and stretch portion 32 along the stern that main body 31 front end K/UPs extend to form and constitute; Described upper shell 2 is one-body molded with lower house 3.Stern is stretched the curved surface that portion 32 has a fairing, can reduce be in operation stern wave making resistance and viscous pressure resistance.

Lower house 3 bottoms are provided with a tail vane base 4 are installed, wherein, and this tail vane base 4 and lower house 3 integrated injection moldings.Lower house 3 bottoms are provided with a curved surface groove 5, and this curved surface groove 5 is used to cooperate tail vane base 4 that the stern rudder is installed, and can reduce stern rudder occupation space.

More specifically, near the stern waterline the load water line 1 extends backward, and the stern that formation one has the fairing curved surface is stretched portion 32; Stern is most of to be immersed in the water; Increase waterline length, in the process of navigation, can reduce stern wave making resistance and viscous pressure resistance by actv..The utility model is applicable to long apart from cruising yacht at a slow speed; Its speed is below 12 joints; Each item performance is all within the optimal performance scope; So cruiser stern design can effectively reduce resistance to boats and ships at a slow speed, increases propulsion coefficient and reduces trim, improve navigation performance and increase occupant's comfort level.

Certainly; The above is merely an embodiment of the utility model; Be not to limit the utility model practical range, all equivalences of doing according to the said structure of the utility model claim, characteristic and principle change or modify, and all should be included in the utility model claim.

Claims

1. cruiser stern shell; Comprise a upper shell (2) and a lower house (3); Between upper shell (2) and lower house (3), be provided with a load water line (1), it is characterized in that: lower house (3) is stretched portion (32) formation by a main body (31) and along the stern that main body (31) front end K/UP extends to form; Described upper shell (2) is one-body molded with lower house (3).

2. cruiser stern shell according to claim 1 is characterized in that: described stern is stretched the curved surface that portion (32) has a fairing.