JPS60146794A - Underwater observation apparatus - Google Patents

Abstract

PURPOSE:To obtain an underwater observation apparatus with which the underwater scene can be easily observed for a long time by raising and lowering the underwater observation chamber vertically with respect to a supporting floater. CONSTITUTION:A long guide cylinder is installed in projection into a water-sealingness inspection box 1, and said guide cylinder is inserted into the guide hole on a supporting floater 5. An inspection box raising and lowering winch 6 is installed at the upper edge of the supporting floater 5, and a wire 7 wound onto the winch 6 is laid onto a shieve 8 installed in projection at the upper ege of the large-diameter part and engaged with the supporting floater 5. A rope 13 wound onto a longitudinally transferring winch 12 is fixed onto a weight 14 through a shieve 15 installed at a quay. The above-described inspection box 1 can be raised and lowered vertically by the winch 6 and can be transferred in the longitudinal direction along a shore protection wall C by a winch 12.

Description

[Detailed Description of the Invention] This is carried out by a diving operator, and important parts are judged by inspectors by looking at underwater photographs, underwater television, etc.

However, such means have the following drawbacks.

(1) For underwater inspections, it is necessary for inspectors to acquire diving ability, and it is also necessary for divers to acquire inspection ability.

(2) Underwater photographs and underwater televisions taken by diving operators do not always show the parts that they want to see, leading to omissions in inspections.

(8) There is a part where you have to trust the diving operator.

(4) Diving time is limited and therefore inspection time is short.

The present invention was proposed in view of the above circumstances, and an object of the present invention is to provide an underwater observation device that is portable and allows easy underwater observation for a long time.

To this end, the present invention provides a support floater that floats on the water surface and has a vertical watertight guide hole in the center, and a long guide tube with a relatively small diameter that is inserted into the guide hole of the support floater at the upper end and protrudes in communication with the support floater. a fixed ballast detachably attached to the lower end of the underwater observation chamber; and a lifting means for moving the underwater observation chamber upwardly and downwardly relative to the support floater. , characterized in that it comprises vertical movement means for moving the supporting floater along the revetment wall, and lateral movement means for moving the support floater in a direction perpendicular to the revetment wall.

An example of the application of this flat plate for bank protection work is explained with reference to the drawings. Figure 1 is a longitudinal cross-sectional view, Figure 2 is a plan view of Figure 1, and Figure 3 is a tn-itt of Figure 1. FIG.

In the above figure, l is a large diameter cylindrical watertightness inspection box, and a long small diameter cylindrical guide tube is protruding from the upper end of the box. 2 is a removable fixed ballast mounted on the lower end of the inspection box l; 3 is a stopper protruding from the upper end of the guide tube of the inspection box l to prevent the inspection box 1 from falling off the support floater, which will be described later; 4 is a stopper A watertight cover for opening and closing the upper end of the guide tube of the inspection box L, 5 is a support floater with an upright cubic structure that floats on the water surface A, and a watertight guide hole is provided in the center of the support floater, through which the guide tube of the inspection box L is inserted. There is. Reference numeral 6 indicates a winch for lifting and lowering the inspection box protruding from the upper end of the support floater 5;
is a wire whose one end is locked to the support floater 5, the middle part is hooked around sheaves 8, 8 protruding from the upper end of the large diameter part of the inspection box l, and the other end is wound around the lifting winch 6. , 9 are fixed to the front and rear of the upper end of the support floater 5 via support metal fittings 11, and extendable and retractable parallel support arms each have a rotary tire lO pivotally attached to their tips; A vertically moving winch 13 has an intermediate part wound around a vertically moving winch 12, and both first ends 7'7 each extend slightly diagonally with respect to the y seawall C and are fixed to the seawall C at appropriate intervals. These ropes suspend the counterweights 14 through sheaves 15 and 15, respectively.

In such a device, the inspector enters the inspection box l through the watertight hatch cover 4 shown in Figure 1, and inspects the underwater belt through an appropriate number of observation windows provided at appropriate locations in the inspection box l. Inspection group.

The inspection box l has a light that illuminates the inspection area.

It is equipped with a moving operation box for inspection equipment, traffic equipment, and collision protection structures for outer panels such as fenders.

The weight of the fixed ballast 20 attached to the inspection box 1 is equal to the weight of the inspection box 1 planned to reach the maximum water depth during construction, and the weight of the fixed ballast 20 attached to the wire 7 to prevent the inspection box 1 from rotating at the minimum water depth during construction. This is the weight plus the amount that applies tension.

The inspection box 1 has such buoyancy that it floats on the water surface including all the attached items and its upper part appropriately protrudes into the air.

The support floater 5 constantly suspends the inspection box 1 with a wire 7.
- When given in a state of
This is done by winding up and unwinding with the lifting winch 6, and this operation can also be performed inside the inspection box.

The lateral movement of the inspection box l perpendicular to the revetment wall C is carried out manually or mechanically by moving in and out a pair of support arms 9 attached to the support floater 5 and having a rotary tire comb lO pivotally attached to the tip, and this operation is performed during inspection. This is possible even inside the box 1, and the vertical and lateral movement of the support arm 9 is restrained by the support hardware 11.

The vertical movement of the inspection box L along the seawall C' is carried out by winding the necessary number of ropes 13 around the support floater 5 with a winch for vertical movement installed on the support floater 5.
Sheaves 15Y are provided at both ends of the sheave 15Y, which is fixedly fixed, and the winch 12 for vertical movement is rotated.

According to such a device, the inspector does not need diving ability and can inspect the place he/she wants to inspect by his/her own operation, thereby reducing the number of missed inspections.

Furthermore, when conducting an inspection by diving, conventionally there is a restriction on diving time, but with this device, there is no time restriction (and inspections can be performed with high safety and inspection ability).

Furthermore, this device includes an inspection box l, a fixed ballast 2, a support floater 5. Power supply (shore power, onboard power, portable power)
Because it can be disassembled into two parts, it is convenient for land and sea transportation.

In short, according to the present invention, a support floater that floats on the water surface and has a vertical watertight guide hole in the center, and a relatively small-diameter long guide tube inserted into the guide hole of the support floater at the upper end communicate with each other. A relatively large-diameter underwater observation room,
a fixed ballast detachably attached to the lower end of the underwater observation chamber; a lifting means for moving the underwater observation chamber up and down relative to the support floater; and a lifting means for moving the support floater along the seawall. By providing vertical movement means for moving the support floater in a direction perpendicular to the seawall, a portable underwater observation device that is easy to handle is obtained.
The present invention is extremely useful industrially.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing an embodiment in which the present invention is applied to bank protection construction, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a
- This is a cross-sectional view taken at ■■. l...Inspection box, 2...Fixed ballast, 3...Stopper, 4...Water honey cover, 5 River support 70-ta,
6... Lifting winch, 7... Wire, 8...
Sheep, 9...Support arm, lo mountain rotating tire, ll
...Support hardware, 12...Winch for vertical movement, 13.
...a-p, 14...counterweight, 15...
Sheep, A...Water surface, B...Water K, C...Revetment Patent attorney Masafumi Tsukamoto rFigure 1\Figure 2Figure 3

Claims (1)

[Claims] A support floater that floats on the water surface and has a vertical water guide hole in the center, and a relatively large diameter floater that communicates with and protrudes from its upper end with a relatively small diameter long guide tube that is inserted into the guide hole of the support 70-ta. an underwater observation room; a fixed ballast detachably attached to the lower end of the underwater observation room; a lifting means for moving the underwater observation room up and down relative to the support floater; An underwater observation device comprising: a vertical movement means for moving the support floater along a wall; and a lateral movement means for moving the support floater in a direction perpendicular to the seawall.