JPH04110698U - Underwater observation device - Google Patents

Abstract

(57) [Summary] [Purpose] This article relates to devices that are attached to unmanned or manned diving equipment to conduct underwater observations of estuaries, bays, ports, etc., and particularly relates to underwater observation devices that are capable of making observations in turbid water.
The underwater observation device of the present invention can also be used to investigate the interior of sedimentation ponds at sewage treatment plants and seabed surveys at marine farms. [Structure] A funnel-shaped base frame 20 is attached to the front end of the submersible 1 through a rotation shaft 21 at the top thereof so that it can be rotated within a range of approximately 180° by operating the elevation device 11. A trumpet-shaped bellows 6 that can be expanded when supplied with compressed air is attached to the opening of the bellows 6, and a duct 7 connected to the filtration device 2, the pump 3, the flow rate control valve 4, and the hose 5 is connected to the bellows 6 in a spiral shape. After the turbid water in the bellows 6 is replaced with clear water by supplying fresh water into the bellows 6 from the water fountain hole 7a of the duct 7, underwater observation is performed using the underwater television camera 10 and the floodlight 9. Has characteristics.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention can be installed on unmanned or manned diving equipment and can be used in estuaries, bays, and ports. Regarding equipment for underwater observation such as do.

0002 The underwater observation device of this invention can be used to investigate the inside of sedimentation ponds at sewage treatment plants and the ocean at marine farms. It can also be used for bottom surveys, etc.

0003

[Conventional technology]

Conventional underwater vehicles (ROVs) and submersibles have the ability to observe and observe the underwater environment. It is equipped with a floodlight and underwater TV camera, etc., and there is a peephole and underwater TV camera. Observations and monitoring are being carried out throughout the country.

0004

[Problem that the idea aims to solve]

In this way, underwater observation using conventional submersibles is done through a peephole or underwater television. This is carried out by observation and monitoring of Water tends to become turbid during construction, making accurate observation and monitoring difficult. There is a problem.

[0005] This invention attempts to solve these problems, and When using an underwater observation device equipped with a medium TV camera in turbid water, Replace the water within the viewing angle of the TV camera and the lighting angle of the floodlight with highly transparent fresh water. To provide an underwater observation device that enables accurate underwater observation. With the goal.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the underwater observation device of the present invention is installed on a submersible, etc. In underwater observation equipment, a trumpet-shaped base whose base is rotatably attached to the above-mentioned submersible, etc. It is equipped with a flexible bellows and has many fountain holes formed on the inner wall of the bellows. A pump capable of supplying fresh water is connected to the duct. It is characterized by an underwater television camera and floodlight installed inside the bellows. There is.

[0007]

[Effect]

In the underwater observation device of the present invention described above, fresh water is supplied inside the bellows prior to underwater observation. It is ejected and has the effect of replacing the turbid water in the bellows with clear water.

[0008] You can also rotate the bellows to observe the bottom, front, and top of the target. I can.

[0009]

【Example】

Below, an underwater observation device as an embodiment of the present invention will be explained with reference to drawings. , FIG. 1 is a schematic side sectional view, and FIG. 2 is a schematic diagram of the operating state.

0010 The submersible 1 is constructed with a known pressure-resistant shell structure and is capable of three-dimensional navigation underwater. is equipped with a known propulsion device.

[0011] Furthermore, power, air, Control signals etc. are supplied through a penetration fitting 16 attached to the shell structure of the submersible 1. It is configured to be remotely controlled from the support ship 13.

0012 At the front end of the submersible 1, a funnel-shaped base frame 20 rotates at its top via a rotation shaft 21. It is mounted so that it can be rotated within a range of approximately 180° by operating the elevation device 11. It looks like this.

[0013] A bellows 6 in a trumpet shape (flaring at the end) is attached to the opening of the base frame 20. . The bellows 6 consists of two flexible sheets, and there is a flexible wire between the inner and outer sheets. By pressurizing air through the flexible hose 8, as shown in FIG. It is configured to expand into a pop-up shape.

[0014] Reference numeral 6a indicates a contact portion between the inner and outer sheets.

[0015] A duct 7 is spirally attached to the inner wall surface of the bellows 6.

[0016] A large number of fountain holes 7a are formed in the duct 7, and the base end of the duct 7 is flexible. The pump 3 is connected to the pump 3 via a sex hose 5. Code 4 is a flow control valve, code 2 indicate a turbid water filtration device.

[0017] An underwater television camera 10 and a floodlight 9 are installed inside the bellows 6. Ru. In the figure, numeral 14 is an offshore structure, and numeral 15 is fresh water supplied from a support ship. or filtered water) piping, and reference numeral 17 indicates the seabed.

[0018] In the above configuration, the submersible 1 approaches near the base of the marine structure 14 in turbid water. When this happens, pressurized air is supplied to the bellows 6 through the flexible hose 8. Then, the bellows 6 is extended. At the same time, the turbid water filtration device 2 and pump 3 operates, and the flexible hose 5, duct 7, and injection hole 7a enter the bellows 6. Fresh water is supplied through the bellows 6, and the turbid water in the bellows 6 is replaced with fresh water. In addition, As the transparency inside the bellows 6 becomes better, the flow rate control valve 4 is slightly throttled and the flow rate becomes smaller. A certain amount of filtered water is sent into the bellows 6 to maintain transparency.

[0019] When the transparency inside the bellows 6 is good, look down according to the position of the underwater observation target. The operation of the elevation device 11 causes the upper (state 61) and lower (state 62) The bellows can be directed in any direction. At this time, the floodlight 9, underwater television camera 10 are also pointed in the same direction, and observations are made using an underwater television camera.

[0020] The bellows 6 has an air-expandable flexible structure, so it can be used for marine structures. It is possible to attach it closely to the target such as 14, and when doing so, the bellows 6 Because it blocks turbid water, transparency can be further improved.

[0021] In addition, when it is necessary to improve the transparency inside the bellows 6 and to provide a large volume of filtered water, a support ship From 13 via support cable 12 filtered water or fresh water can be supplied.

[0022]

[Effect of the idea]

As detailed above, the underwater observation device of the present invention has the following effects and benefits. You get points. (1) The interior of the bellows equipped with an underwater television camera and floodlight will be purified. Underwater observation using an underwater television camera can be carried out easily and accurately. (2) Since the bellows can be lifted up and down, it can be used to (e.g.) and the upper surface (e.g. the ocean floor). (3) Even when water clarity is good but there are many microorganisms in the water, filtered water is used, so It is possible to maintain better transparency inside the bellows.

[Brief explanation of drawings]

FIG. 1 is a schematic side sectional view of an underwater observation device as an embodiment of the present invention.

FIG. 2 is a schematic diagram of the same operating state.

[Explanation of symbols]

1 Submersible 2 Filtration device 3 pump 4 Flow control valve 5 Flexible hose 6 Bellows 7 Duct 7a Fountain hole 8 Flexible hose 9 Floodlight 10 Underwater TV 11 Elevation device 12 Support ship cable 13 Support ship 14 Marine structures 16 Penetration fitting

Claims (1)

[Scope of utility model registration request] Claim 1: An underwater observation device to be attached to a submersible, etc., comprising a trumpet-shaped flexible bellows whose base is rotatably attached to the submersible, etc., and a large number of water fountains on the inner wall of the bellows. An underwater observation device characterized in that a duct formed with a duct is attached to the duct, a pump capable of supplying fresh water is connected to the duct, and an underwater television camera and a floodlight are installed in the bellows.