JP3049257U - Ship propulsion - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To effectively protect a ship's propulsion device, and to make water propelled by the propulsion device flow in and out in order, thereby concentrating hydraulic power and increasing propulsion power further. It is to provide a propulsion device for a ship. SOLUTION: A hull is provided with a propulsion device, the propulsion device comprises a transmission main shaft and an impeller, a protection cover is connected to the hull, and the protection cover is connected to the hull with a fixed structure, and the propulsion device is provided around the propulsion device. Are combined to cover
The protective cover is provided with a water supply through which the propulsion device extends, the impeller is fixed to the transmission main shaft and is formed to rotate at a fixed position, and the protective cover is provided with a launch hole and a drain hole. It is configured.

Description

[Detailed description of the invention]

[0001]

[Field to which the invention belongs]

 The present invention mainly relates to a propulsion device having a new structure for a ship.

[0002]

[Prior art]

 Conventionally, this type is as follows. A conventional ship propulsion device generally has an impeller type structure and is configured to protrude rearward and outward of the hull. Further, in the conventional impeller type propulsion device, the impeller rotates so as to push water to move the ship forward.

The following problems can be pointed out with respect to the conventional technology. With the conventional ship propulsion system described above, there is a risk that the propulsion system will wrap around the fishnet while the ship is sailing, which not only prevents the ship from marching in a normal state, but also makes it difficult to break the fishnet. It can also lead to destruction and loss of the fishnet. In addition, the water propelled by the rotation of the impeller enters from all sides of the impeller and is discharged in a diffusion manner.Thus, the propulsion generated by the rotation of the impeller is lost to some extent, and the impeller rotates. Propulsion cannot be fully exerted to propel the ship forward.

[0004]

[Problems to be solved by the invention]

 The present invention has been made in view of such problems of the prior art, and aims at providing the following things. An object of the present invention is to provide a propulsion device for a ship with a new structure, effectively protect the propulsion device of the ship, and to concentrate the hydraulic power by moving the water propelled by the propulsion device in and out in order. The driving force is further increased.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the ship propulsion device according to the present invention is as follows. That is, in the propulsion device of the ship of the present invention, a propulsion device 11 is provided on a hull 1, the propulsion device 11 includes a transmission main shaft 13 and an impeller, and a protection cover 2 is connected to the hull 1, and a protection cover 2 Is fixed to the hull 1 with a fixed structure, and is connected so as to cover the periphery of the propulsion unit 11. The protective cover 2 is provided with a water supply 22 for the propulsion unit 11 to extend into, and the impeller is connected to the transmission main shaft 13. The protective cover 2 is provided so as to be fixed and rotated at a fixed position, and a water launch hole 21 and a drain hole 22 are provided in the protective cover 2.

[0006] The propulsion device for a ship according to the present invention can be configured as follows. First. The launch hole 21 of the protective cover 2 is provided at the bottom of the protective cover 2 and is formed in a fence net shape. Second. The drain hole 22 of the protective cover 2 is provided on the upper part of the protective cover 2, and the pusher 11 is provided therein. Third. The fixing structure of the protective cover 2 is fixed so as to be integrated with the hull by welding or fixing with screws or rivets.

[0007]

[Embodiment of the invention]

 An embodiment of the present invention will be described with reference to the drawings. In the exploded perspective view of the embodiment of the present invention shown in FIG. On the rear side of the hull 1, a propulsion device 11 is provided, and the propulsion device 11 includes a transmission main shaft 13 and an impeller. The impeller is fixed to the transmission main shaft 13 and can be rotated at a fixed position, and the protective cover 2 is connected to the hull 1. The protective cover 2 is connected to the hull 1 with a fixed structure and is also connected around the propulsion unit 11, so that the propulsion unit 11 can be protected. The fixing structure of the protective cover 2 can be fixed so as to be integrated with the hull 1 by welding, or by a structure such as fixing with screws or rivets. .

A water opening 21 is provided at the bottom of the protective cover 2, a fence net is formed at the bottom of the water opening 21, and a water supply 22 is formed above the protective cover 2. The water supply 22 is used for the propulsion device 11 to extend in, so that when the propulsion device 11 rotates, the water is sucked from the bottom launch hole 21 by causing the water to push the water, and It is formed so as to be discharged from the upper drain hole 23.

In the cross-sectional side view of the combined state of the embodiment of the present invention shown in FIGS. 2 and 3 and the cross-sectional view along the line 3-3, the propulsion unit 11 itself is covered by the protective cover 2, Not only does the problem that the propulsion device 11 wraps around the fishnet or rope not only occur, but also, when the propulsion device 11 rotates, the rotation in the water supply 22 causes the water to flow, and As a result of the suction force being formed, a large amount of water is replenished and the water is discharged through the drain holes 23, so that a concentrated propulsion force in the opposite direction to the hull 1 is formed. It is configured to control the direction of its advance.

[0010]

[Effect of the invention]

 Since the present invention is configured as described above, the following effects can be obtained. The propulsion device of the ship of the present invention can effectively protect the propulsion device of the hull, and can prevent it from wrapping around a foreign object such as a fishnet or a rope, thereby reducing the loss of the fishnet. As well as avoiding the problems of getting stuck in a ship. In addition, since the propulsion device is accommodated and operated in the tap water, the water is formed so as to flow in and out in order, so that a larger propulsion force is obtained as compared with a state in which the water is discharged in a diffusion manner. be able to.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment according to the present invention.

FIG. 2 is a side cross-sectional view of a combined state of the embodiment of the present invention.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Hull 13 Transmission main shaft 2 Protective cover 21 Launch hole 11 Propeller 22 Water supply 12 Rudder 23 Drainage hole

Claims (4)

[Utility model registration claims] A hull (1) is provided with a propulsion device (11), the propulsion device (11) is composed of a transmission main shaft (13) and an impeller, and a protection cover (2) is connected to the hull (1). The protective cover (2) is coupled to the hull (1) with a fixed structure, and is coupled so as to cover the periphery of the propulsion unit (11).
A water supply (22) is provided for extending 1), the impeller is fixed to the transmission main shaft (13) and is formed to rotate at a fixed position, and the impeller (2) is provided in the protective cover (2).
1) and a water propulsion device provided with a drain hole (22). 2. The ship propulsion device according to claim 1, wherein the launch hole (21) of the protective cover (2) is provided at the bottom of the protective cover (2) and is formed in a fence net shape. . 3. The drainage hole (22) of the protective cover (2) is provided on the upper part of the protective cover (2).
1) is configured to be provided therein.
Or a propulsion device for a ship according to 2. 4. The fixing structure of the protective cover (2) is fixed by welding, or fixed by screws or by rivets so that the protective cover (2) is integrated with the hull. The ship propulsion device according to claim 1, 2 or 3, which is configured as described above.