JPS585348Y2 - Underwater wire connection device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wire connecting device suitable for connecting underwater electrical equipment to a power source underwater.

In the future, the demands for ocean development will become more and more demanding, and as a result, the number of equipment used underwater will increase.

Underwater equipment requires connection to a power source to drive it, as well as connection work to the equipment's propulsion signal source, but when performing this maintenance in the air, it is necessary to connect the equipment with long electrical wires attached. From the air to the water Since the text had to be moved from the water to the air, work efficiency was poor, and the maintenance work on the equipment required time and manpower.

Conventionally, this type of invention has included plug and outlet □
There is a method in which the connection fitting is covered with a watertight cover, the cover is filled with insulating oil, and the connection is made by piercing this cup with both fittings.

However, with this plan, there is a fault in the insulation, which is extremely dangerous, especially when disconnecting the two underwater.Even if the disconnection is performed after the power is turned off, the insulation will deteriorate and the cover, etc. must be maintained before reuse. There are practical drawbacks such as the need for

The present invention eliminates the above-mentioned drawbacks by carrying out the connection work in a base filled with insulating oil.

The present invention will be explained below according to examples.

In FIG. 1, numeral 1 is a container whose upper part is closed and whose lower part is open, and is installed on the underwater side of the hull or bottom of a ship.

A deaeration hole 2 is provided on the upper side of the container 1, and a refueling hole 3 is provided on the lower side, and 2A and 3A are respective plugs.

One of the connecting plugs is attached to the upper part of the container.

A plurality of plug pins 5 are fixed to the insulating plate 6 according to the number of poles.

The insulating plate 6 is fixed to a hollow support 7& formed of an insulating material, and the base of the support is fixed to the upper surface of the container 1.

A holding fitting 8.8 for engaging and holding the other connection plug is fixed to the side surface of the tip of the support base T.

In addition, there are penetrating metal fittings 9 and 10 on the side walls of the support stand and the corners of the top surface of the container.
is installed watertight.

A cable 11 from an onboard power supply (not shown) is introduced into the support base 7 in a watertight manner through these metal fittings, and a plug pin 5. '5 is not connected.

12.13 is a tightening gland, and 14.15 is a gasket.

FIG. 2 shows another connecting plug corresponding to the connecting plug shown in FIG.

16.16 is fixed to the insulating plate 17 with a socket metal fitting.

The insulating plate 17 is fixed in the hollow part of the cylindrical body 1B made of an insulating material.

In this case, care is taken to ensure that the tip of the socket fitting does not protrude from the tip of the cylindrical body.

An annular groove is provided on the end surface of the tip end of the cylinder, and an O-ring 19 is inserted into the end surface of the cylindrical body. ;4 is being given.

Reference numeral 20 denotes a cable that is watertightly penetrated into the hollow portion from the rear of the cylindrical body 18, and its base end is connected to underwater equipment, and its distal end is connected to socket fittings 16 and 16.

21 is a washer, 22 is a gasket, and 23 is a tightening gland. By tightening the tightening gland 23, the gasket 22 holds the cable 20 in a watertight manner.

Reference numeral 24 denotes a watertight cover that seals off the tip of the cylindrical body 18 in a watertight manner, and is formed into a "T" shape on the side (opening in Figure 2) and a "makikamae" shape on the front.

An elongated hole 25° 25 in the vertical direction is provided in the center of the lower part of both legs of the watertight cover, and pins 26 and 26 planted in the lower side of the outer wall of the cylindrical body protrude from this elongated hole to the row section. It is being

Pins 2γ, 21 are installed above the elongated holes 25, 25, and a spring 28° 28, which is always under tension, is applied between the pins 26° 26 and the pins 2γ, 21.

The legs of the pins 27.27 extend through the side walls of the watertight sheathing into elongated grooves 29, 29 provided in the upper end of the barrel body.

A recess 30 is provided on the circumferential surface of the distal end of the cylindrical body, into which the holding fittings 8, 8 of the connecting plug shown in FIG. 1 are engaged.

The inner space of one of the connection plugs shown in FIG. 1 and the inner space of the other connection plug shown in FIG. 2 are filled with insulating grease 31.

Next, the state of use of the present device will be explained.

The inside of the container shall be completely dry.

First, the container is filled with insulating oil in the air, and the lower open end is closed with a lower lid 32, as shown in FIG.

An oil drain hole 33 is provided in the lower lid 32 and is closed with a plug 34.

35.35 is a volt.

Now, after the lower lid is attached, insulating oil is injected through the deaeration hole 2 or the oil supply hole 3 to fill the inside of the container, and then the deaeration hole is closed, and the preparation is completed.

Next, the connection work in water will be explained.

Before submerging the underwater equipment into the water, pass the socket side cable 20 shown in FIG.
9 to keep it watertight.

The base end of the cable is connected to underwater equipment.

Next, the insulating oil 40 is filled into the recess where the socket fitting 16 of the connection plug on the side of FIG. 2 is located.

Then, cover the watertight cover 24 to make the state shown in Fig. 2, and the spring 2
Maintains watertightness with elasticity of 8°28.

In this state, underwater equipment can be submerged underwater.

The diver opens the lower lid 32 of the container as shown in FIG.

However, the specific gravity of the insulating oil inside is lighter than that of seawater, so it floats and does not leak downward.

Next, the connection plug shown in FIG. 2 was brought into this insulating oil, and as shown by the arrow at the opening in FIG. At the point when the pin 26 reaches the lowest end of the elongated hole 25, it is rotated in the direction of the arrow and removed from the cylindrical body.

Since this work is carried out in insulating oil, there is no risk of degrading the insulation of the pins.

After that, connect the pins of both connection plugs and the soget as shown in FIG. 3, and bring them close together until the holding fittings 8, 8 of the connection plug 4 engage with the recesses 30 of the connection plug shown in FIG. The connection work is completed.

Finally, the lower lid 36 of the container 1 is closed to prevent the insulating oil from leaking out (for example, due to the movement of the ship).

It should be noted that the operation for separating the connection plug may be performed in the completely reverse order as described above.

Furthermore, when performing attachment/detachment work underwater, if the insulating oil in the container 1 becomes low, remove the stopper 3A or 34 and replenish the insulating oil before starting the work.

It is convenient to check the amount of insulating oil by detecting the difference in resistance with seawater using an electrode.

As explained above, according to this proposal, all the work of connecting and disconnecting the connection plug is done in insulating oil, so there is no risk of insulation failure, and parts need to be maintained and replaced after each connection. Since it is not necessary, it can be used as is regardless of the frequency of connection and disconnection work.

The grease in each connection plug is used to prevent insulating oil from escaping from the container and preventing water from entering if the cable side is not watertight (this is effective).

In the above-described embodiment, insulating oil was poured into the container in the air, but it is also possible to pour the oil into the container underwater immediately before work.

Of course, in this case, the pin-side connection plug must have a watertight cover.

[Brief explanation of drawings]

Fig. 1 shows one of the connecting plugs used in the proposed device, Fig. 2 shows a longitudinal cross-sectional view and a side view of the other connecting plug, and Fig. 3 shows a longitudinal cross-sectional view showing the connected state of the proposed device. It is a front view. 2... Deaeration hole, 3... Oil supply hole, I...
...Hollow support stand, 18 ... Cylindrical body, 19 ...
...OIJ song 24...Watertight cover, 25.
...Long hole, 2B...Tension spring, 29...
... Long groove, 31 ... Insulating grease, 33.
...Drain hole, 40...Insulating oil.

Claims (1)

[Scope of utility model registration request] A container that is closed at the top, open at the bottom, and filled with insulating oil under water, and a container installed inside the container? An underwater electric wire connection device consisting of a connection and a mating male connection plug having a detachable watertight cover.