JPH10138996A - 360-degree rotatable ship jet nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a handling operation easier than ever and to reduce the number of malfunction below one third as compared with conventional type and to extremely increase the propelling force of a ship by reducing the number of screws. SOLUTION: A nozzle body 2 provided with a pump 1 for discharging water in one end thereof is shaped like a downward letter U and supports by the other end thereof the base end upper side of the nozzle mouth 4 shaped like a letter L having an outward jet port 3 via an operating handle 5 or a DC motor such that the nozzle mouth 4 can be turned 360 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 360-degree rotary marine jet injection nozzle mainly mounted on the bottom of a ship such as a work boat.

[0002]

2. Description of the Related Art Conventionally, ships such as work boats are all screw ships, and are equipped with a total of six screws, one at the front and rear ends of the ship and one at the front, rear, left and right sides of the ship. Was.

[0003]

However, conventional ships such as work boats are equipped with a total of six screws, one at the front and rear ends of the ship and one at the front, rear, left and right sides of the ship. As a result, maneuvering was complicated, requiring not only years of experience and skill but also many malfunctions.

Accordingly, the present invention has been made in view of the above-mentioned point of view, and has a number of screws smaller than that of a conventional screw, requires no years of experience and skill, is easy to operate, and has a malfunction. That can be reduced to 1/3 or less of the conventional one, and the propulsion of the ship can be significantly increased.
It is intended to provide a 60-degree marine jet jet nozzle.

[0005]

According to the present invention, in order to achieve the above-mentioned object, a nozzle body having a water delivery pump mounted in one end thereof is formed in a downward substantially U-shape.
At the lower end on the other end side of the nozzle body, the upper end on the base end side of a substantially L-shaped nozzle opening having an outer injection port on the tip end side was rotatably supported by 360 degrees via a steering handle or a DC motor. Things.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, as an embodiment of the present invention, a state in which it is mounted on the bottom of a ship such as a work boat and used will be described with reference to the drawings.

As shown in FIG. 1, the 360-degree rotary marine jet injection nozzle of the present invention has a nozzle body 2 having a water delivery pump 1 mounted in one end thereof, and is formed into a substantially downward U-shape. At the lower end of the other end of the nozzle body 2, the upper part of the base end of the substantially L-shaped nozzle opening 4 having the outer injection port 3 at the end is connected via the steering handle 5 or a DC motor.
It is formed so that it can be freely rotated by 0 degrees.

That is, the nozzle body 2 has a substantially inverted L-shaped water suction pipe 9 with a pump 1 having a water suction part 8 having a slightly larger diameter at the lower end than other parts. A straight water delivery pipe 10 for delivering water sucked up by the pump 1 of the pipe 9, and a substantially inverted L-shaped upper side for delivering the water delivered from the water delivery pipe 10 to the nozzle opening 4 side; An elbow 11 is connected in a downward substantially U-shape, and a check valve / flow rate changing nozzle 12 is provided inside the water delivery pipe 10. The upper elbow 11 of the check valve / flow rate changing nozzle 12 is provided. The water delivery pipe 10 in the vicinity is provided with an air outlet 19 for injecting compressed air sent from the outside by a compressor or the like in the water jetting direction on the upper elbow 11 side.

The nozzle mouth 4 has a substantially L-shaped lower elbow 13 for sending water sent from the upper elbow 11 of the nozzle body 2 to the outside, and the lower elbow 1
A straight outer injection port 3 for injecting the water discharged from the outside 3 is connected in a substantially L-shape, and a lower elbow 1 is provided on a lower outer peripheral surface of an upper elbow 11 of the nozzle body 2.
3 with the appropriate number of connecting balls 1 between them.
4 so as to be rotatable 360 degrees.

Further, the handle 5 is provided with a shaft receiver 1 fixed to the rear outer peripheral surface of the upper elbow 11 of the nozzle body 2.
5, is rotatably supported via the vicinity of the lower end of a shaft 17 having a small gear 16 fixed to the outer peripheral surface of the lower end.
The small gear 16 on the outer peripheral surface at the lower end of the shaft 17 of the handle 5 is rotatably meshed with a large gear 18 fixed to the upper outer peripheral surface of the lower elbow 13 of the nozzle body 4 so as to be rotatable 360 degrees. . Further, a DC motor with a button for operation may be attached instead of the handle 5.

[0011]

As described above, the 360-degree rotation type marine jet injection nozzle of the present invention forms the nozzle body 2 having the water delivery pump 1 attached to one end thereof into a substantially downward U-shape. At the lower end of the other end of the nozzle body 2, the upper portion of the base end of the substantially L-shaped nozzle opening 4 having the outer injection port 3 at the end is connected to the steering handle 5 or a DC motor.
In the case of a small work boat or the like, a front fixed hole B and a rear support hole C are formed at an appropriate interval in the middle of the bottom A of the ship, so that the front fixed hole is formed. B
The lower end of one end of the nozzle body 2 is fixed so as to be communicated from the inside of the ship bottom A to the outside, and several O-rings 6 The jet injection nozzle of the present invention is so arranged that the outer injection port 3 on the tip end side of the nozzle opening 4 is projected from the inside of the ship bottom A to the outside through the sealed holding ring 7 and is rotatable 360 degrees. With only one in the middle of the bottom A, the vessel can be moved freely with one handle 5 or one button of the DC motor.

[0012] Further, even for a large work boat or the like,
Only one jet injection nozzle of the present invention is installed at the front and rear of the ship bottom A by the same means as described above, and the ship can be freely operated with each handle 5 or one button of the DC motor as described above. Since the number of screws can be reduced, the number of screws can be reduced as compared with the conventional number of screws, the operation is easy, and the malfunction can be reduced to 1/3 or less of the conventional screw without requiring many years of experience and skill.

In addition, a nozzle body 2 having a water delivery pump 1 mounted in one end thereof is formed in a downward substantially U-shape, and an outer injection port 3 is provided at the lower end of the other end of the nozzle body 2 at the front end. The upper part of the base end side of the substantially L-shaped nozzle opening 4 is connected to the steering handle 5 or a DC motor through a 360
By being formed so as to be freely rotatable, the water delivered from one end side of the nozzle body 2 by the pump 1 bends the inside of the nozzle body 2 into a substantially U-shape, and then passes through the inside of the nozzle opening 4. The pressure builds up in the nozzle body 2 and the nozzle opening 4 while bending in a substantially L-shape, and the jet is strongly and instantaneously ejected from the outer injection opening 3 on the tip side of the nozzle opening 4 to the outside, so that the ship is propelled. The force can be increased significantly.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pump 2 Nozzle main body 3 Outer injection port 4 Nozzle body 5 Handle 6 O-ring 7 Seal holding ring 8 Water suction part 9 Water suction pipe 10 Water delivery pipe 11 Upper elbow 12 Check valve and flow rate changing nozzle 13 Lower elbow 14 Connection ball 15 Shaft receiver 16 Small gear 17 Shaft 18 Large gear 19 Air outlet A Ship bottom B Front fixed hole C Rear holding hole

Claims (1)

[Claims] 1. A nozzle body having a water delivery pump mounted in one end thereof is formed into a downward substantially U-shape.
A 360 ° rotary marine jet nozzle, wherein the base end of the U-shaped nozzle body is rotatably supported by a 360 ° via a steering handle or a DC motor.