JP2000016386A - Underwater navigating body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily couple and uncouple a pressure-proof vessel, and to prevent generation of the noise during the navigation while ensuring an excellent watertight structure. SOLUTION: In an underwater navigating body 1, a plurality of cylindrical pressure-proof vessels 3, 4 which can be uncoupled, are coupled with each other. An outer circumferential groove 13 is provided in an outer circumferential surface of coupling parts of the pressure-proof vessels 3, 4, semi-circular annular bodies 6, etc., of a two-split coupling ring 2 is fitted to the outer circumferential groove 13, and both end parts of the annular body 6, etc., are fixed by tightening bolts to assemble the pressure-proof vessels 3, 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater vehicle such as an underwater robot equipped with a fish finder.

[0002]

2. Description of the Related Art Generally, an underwater vehicle 5 as shown in FIG.
Reference numeral 1 denotes a decomposable structure composed of a plurality of sections, and is constituted by joining a plurality of adjacent pressure-resistant containers 52, 53, 54 and a lid 55 adjacent to each other. For this reason, flanges 52a, 52b, 53a, 53b, 54a projecting outward are provided on the outer periphery of the joint of the pressure vessels 52, 53, 54 in order to secure a watertight structure.
A number of bolt holes (not shown) for inserting the bolts 56 are formed in the flanges 52a to 54a and the lid 55 at intervals in the circumferential direction.
Accordingly, the underwater vehicle 51 is connected to the flange 5 with the sealing material such as a gasket (not shown) interposed therebetween.
2a to 54a and the lid 55 are overlapped, and a bolt 56 and a nut 57 are screwed through a bolt hole, and tightened with a torque wrench.
The cover 54 and the lid 55 are fixedly assembled to each other.

[0003]

However, in the above-described conventional underwater vehicle 51, the adjacent pressure vessel 5
Since a large number of bolts 56 and nuts 57 are required for joining the 2, 53, 54, etc., and torque management at the time of tightening is required, the joining and disassembling operations of the pressure-resistant containers 52, 53, 54 are extremely difficult. In addition to being cumbersome and time-consuming, the joining and disassembling operations must be performed with care so as not to damage the sealing material such as a gasket, and it has been difficult to improve workability. Further, in the conventional underwater vehicle 51, the flanges 52a to 54a and the like protrude outward from the outer peripheral surfaces of the pressure-resistant containers 52, 53, and 54. This is not only a cause, but also unfavorable in terms of fluid dynamics.

[0004] The present invention has been made in view of such circumstances, and an object thereof is to enable connection and disassembly of a pressure-resistant container by a simple operation, and to operate the vessel while maintaining an excellent watertight structure. An object of the present invention is to provide an underwater vehicle capable of preventing occurrence of noise during traveling.

[0005]

According to the present invention, there is provided an underwater vehicle comprising a plurality of disassembled cylindrical pressure-resistant containers joined to each other. A circumferential groove is provided on the outer peripheral surface of the joint of
The semi-circular annular body of the joint ring formed in two is fitted into the circumferential groove, and the both ends of these annular bodies are fixed with bolts, thereby assembling the pressure-resistant container. Also,
In the present invention, it is possible to connect the one end side of the annular body formed into two parts of the joining ring so as to be rotatable with each other by a hinge.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a perspective view showing a joining ring used for assembling a pressure vessel of an underwater vehicle according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a part of the underwater vehicle in a state in which the pressure vessel is assembled using the joining ring, and FIG. 3 is a cross-sectional view showing a joint portion of the pressure vessel. As shown in FIGS. 1 to 3, the underwater vehicle 1 of the present embodiment is a watertight structure that travels in water, and is a cylindrical body whose front and rear ends are closed. That is, the underwater vehicle 1 is configured by joining a plurality of cylindrical pressure-resistant containers 3, 4, 5 that can be disassembled using the joining ring 2.

As shown in FIG. 1, the joining ring 2 is divided into two by semi-circular upper and lower annular members 6 and 7, and is fitted into an outer peripheral groove of a joining portion of the pressure-resistant containers 3, 4, and 5 described later. It has become. One ends of the annular bodies 6 and 7 are rotatably connected to each other by a hinge 8, and the other ends of the annular bodies 6 and 7 are tightening bolts (two in this embodiment).
9 for fastening and fixing. And
On the outer peripheral surface on the other end side of the upper annular body 6, an oval-shaped concave portion 10 for housing the head of the tightening bolt 9 without projecting the head is juxtaposed. A through hole (not shown) for inserting the shaft portion is provided. In addition, a screw hole (not shown) for screwing the tightening bolt 9 is provided on the other end surface of the lower annular body 7. The head of the tightening bolt 9 is provided with a fitting recess for receiving the tip of a torque wrench formed in a hexagonal shape, for example. In addition, the inner peripheral surface of the joining ring 2, that is, the annular body 6,
As shown in FIGS. 1 and 3, an inner circumferential groove 1 having a continuous concave cross section (substantially U-shaped cross section) is formed in the center of the inner circumferential surface of the inner circumferential surface in the width direction.
1 and 12 are provided respectively.

On the other hand, as shown in FIGS. 2 and 3, outer peripheral grooves 13 for fitting the annular bodies 6 and 7 of the joint ring 2 are provided on the outer peripheral surfaces of the joints of the pressure-resistant containers 3, 4 and 5, respectively. ing. The outer peripheral groove 13 is fitted with the joining ring 2
The outer peripheral surface of the joint ring 2 and the outer peripheral surfaces of the pressure-resistant containers 3, 4, 5 are flush with each other, and have a length in the front-rear direction substantially matching the width of the joint ring 2. Further, the inner peripheral grooves 11 and 12 of the annular bodies 6 and 7 are provided on the bottom surface at the center in the front-rear direction of the outer peripheral groove 13.
A projection 13a that fits with the projection is provided. Therefore, the inner peripheral grooves 11 and 12 of the annular bodies 6 and 7 and the pressure-resistant containers 3 and
The outer peripheral grooves 13 of 4 and 5 are formed in a cross-sectional uneven shape to be fitted to each other, and a pressure resistance is obtained by an engagement action between both side walls of the inner peripheral grooves 11 and 12 and the projection 13 a of the outer peripheral groove 13. The containers 3, 4, and 5 are prevented from being disassembled in the front-rear direction.

A positioning pin 14 is implanted on one end surface of the joint between the pressure-resistant containers 3, 4, and 5, and a fitting hole for fitting the positioning pin 14 is formed on the other end surface. 1
5 are provided. An O-ring (seal ring) 16 is provided on the end face of the joint between the pressure-resistant containers 3, 4, and 5.
The watertightness of the joint of No. 5 is ensured. In addition, the O-ring 16 is fixed to the outer peripheral groove 13 and the positioning pin 1 so that the O-ring 16 does not come into contact with the joint ring 2 when the pressure-resistant containers 3, 4, 5 are assembled.
4 is disposed inside.

In order to assemble the underwater vehicle 1 of the present embodiment, first, an O.D.
While the ring 16 is mounted and the positioning pin 14 is inserted into the fitting hole 15 and positioned, these pressure-resistant containers 3,
The end faces of the joints 4 and 5 are overlapped. Next, the annular bodies 6 and 7 of the joint ring 2 shown in FIG. 1 are rotated in the opposite direction to open the other end, and the annular bodies 6 and 7 are applied to the respective outer circumferential grooves 13 and the inner circumferential grooves 11 thereof. , 12 to the projection 13a of the outer circumferential groove 13
And the other ends of the annular bodies 6 and 7 are closed. Thereafter, the shaft portions of the two tightening bolts 9 are screwed into the screw holes from the concave portions 10 of the annular body 6 through through holes (not shown), and the tightening bolts 9 are tightened to a predetermined tightening force using a torque wrench. If tightened and fixed, the pressure-resistant containers 3, 4, and 5 are prevented from moving in the radial direction and the front-rear direction, and in a state where watertightness is maintained.
It will be firmly joined and assembled (see FIGS. 2 and 3). In order to disassemble the pressure vessels 3, 4 and 5, the tightening bolt 9 is loosened using a torque wrench, pulled out of the joint ring 2, and the other end of the annular bodies 6, 7 is opened to open each pressure vessel. Remove from joints 3, 4, and 5. Then, when the adjacent pressure-resistant containers 3, 4, and 5 are pulled in the front-rear direction, the joining between them is released, and the underwater vehicle 1 is disassembled.

In the underwater vehicle 1 according to the present embodiment, the annular members 6 and 7 of the joint ring 2 are fitted into the outer peripheral groove 13 of the joint between the pressure-resistant containers 3, 4 and 5, and the tightening bolt 9 is attached to the torque wrench. Since the pressure-resistant containers 3, 4, and 5 adjacent to each other are assembled by being tightened with each other, the joining and disassembling operations of the pressure-resistant containers 3, 4, and 5 can be easily performed. Moreover, the one ends of the annular bodies 6 and 7 are rotatably connected by hinges 8 and the number of tightening portions of the tightening bolts 9 is reduced, so that simple torque management is sufficient and workability is improved. .

Further, in the underwater vehicle 1 according to the present embodiment, the inner circumferential grooves 11, 1 of the annular bodies 6, 7 constituting the joint ring 2 are provided.
2 and an outer peripheral groove 1 located at a joint portion between the pressure-resistant containers 3, 4, and 5
3 are formed in a cross-sectional uneven shape that fits into each other, so that the annular bodies 6 and 7 are bolted so that the pressure-resistant containers 3 and 4 can be moved not only in the radial direction but also in the front-rear direction. , 5 can be securely joined. In addition, since the joining ring 2 does not protrude from the outer peripheral surfaces of the pressure-resistant containers 3, 4, and 5, and the outer peripheral surface is a flat surface, noise is not generated by the joining ring 2 and hydrodynamically. The underwater vehicle 1 is also excellent. Furthermore, O
The ring 16 is disposed inside the outer peripheral groove 13 and the positioning pin 14 and is not damaged by the joining ring 2 when the pressure-resistant containers 3, 4, and 5 are assembled. There is no need to be careful in fitting, and workability can be further improved and watertightness can be maintained.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes may be made without departing from the gist of the present invention. What you get. For example, in the present embodiment, one end sides of the annular bodies 6 and 7 are rotatably connected to each other by the hinge 8, but both ends of the annular bodies 6 and 7 are configured to be fixed by bolting. Is also good. The number of pressure vessels to be assembled is not limited to three, but may be two or three or more depending on the model or the like.

[0015]

As described above, the underwater vehicle according to the present invention is formed by joining a plurality of decomposable cylindrical pressure-resistant containers to each other, and providing a circumferential groove on the outer peripheral surface of the joint portion of the pressure-resistant container. ,
The pressure-resistant container is assembled by fitting a semicircular annular body of a joining ring formed in two into the circumferential groove and fixing both ends of these annular bodies by bolts, so that simple torque management is achieved. The connection and disassembly work of the pressure vessel can be easily performed, a watertight structure can be realized, and the generation of noise at the time of sailing can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a joining ring according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the underwater vehicle mounted using the joint ring according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a joint between adjacent pressure-resistant containers of the underwater vehicle according to the embodiment of the present invention.

FIG. 4 is a front view showing a conventional underwater vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Underwater vehicle 2 Joining ring 3,4,5 Pressure vessel 6,7 Annular body 8 Hinge 9 Tightening bolt 10 Depression 11,12 Inner peripheral groove 13 Outer peripheral groove 14 Positioning pin 15 Fitting hole 16 O-ring

Claims (4)

[Claims] 1. An underwater vehicle comprising a plurality of disassemblable cylindrical pressure-resistant containers joined to each other, wherein a peripheral groove is provided on an outer peripheral surface of a joint portion of the pressure-resistant container, and the peripheral groove is divided into two parts. An underwater vehicle, wherein the pressure-resistant container is assembled by fitting the semicircular annular bodies of the joined rings, and fixing both ends of these annular bodies with bolts. 2. The underwater vehicle according to claim 1, wherein one end side of the annular body divided into two parts of the joining ring is rotatably connected to each other by a hinge. 3. An inner peripheral groove is provided on an inner peripheral surface of the joining ring, and the inner peripheral groove and an outer peripheral groove on an outer peripheral surface of a joint portion of the pressure-resistant container are provided.
The underwater vehicle according to claim 1 or 2, wherein the underwater vehicle has a cross-sectional uneven shape fitted to each other. 4. The underwater vehicle according to any one of claims 1 to 3, wherein a seal ring is provided on an end surface of a joint of the pressure vessel.