JPH0648788Y2 - Underwater detachable connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an underwater detachable connector for connecting electric wires for power or control of various machines installed underwater.

[Conventional technology]

As shown in FIG. 4, a conventional underwater detachable connector has a male connector 8 made of an insulator having a protrusion 2 provided with a male conductive portion 1 at its tip, and a female conductive portion 4 provided at the inner side of a cylindrical opening hole 9. After aligning the female connector 11 made of an insulating material in the portion with the male guide pin 3 and the female guide pin hole 12, the male conductive portion 1
And the female conductive portion 4 are joined in water.

However, in the conventional connector, the gap between the diameter of the male conductive portion 1 which is the pin of the male connector 8 and the diameter of the opening hole 9 which is the pin hole of the female connector 1 is made extremely small so that water does not enter. Therefore, when connecting the connectors 8 and 11,
It is difficult to remove the water in the opening hole 9 of the female connector 11.

Therefore, it is necessary to push it in with an extremely large force, and it is difficult to perform the attaching / detaching operation in water. Furthermore, when the male conductive portion 1 side which is a pin or the opening hole 9 of the male connector 11 which is a pin hole is damaged by a foreign substance or the like, water intrudes into the hole from there, causing insulation failure or a short circuit.

[Problems to be solved by the invention]

The present invention has been made in order to overcome such a conventional problem, and an object thereof is to attach / detach underwater without requiring a large force, and the conductive portion can be insulated from the outside. An object is to provide a detachable connector.

[Means for Solving the Problems]

The underwater detachable connector of the present invention which achieves the above-mentioned object is provided with a female conductive portion having a diameter smaller than that of the cylindrical opening hole of a female connector made of an insulating material, and attached to and detached from the female connector. The male connector made of an insulating material is provided with a mounting shaft having a male conductive portion fixed at the tip slidably in the attaching / detaching direction of the connector for a predetermined distance, and the male conductive portion at the tip of the mounting shaft and the male connector side are It is characterized in that a tubular insulator which is expandable and contractible in the diameter and axial directions is interposed between the two.

In the underwater detachable connector configured as described above, when the female conductive portion and the male conductive portion are coupled, water in the pin hole is easily drained and it is not necessary to push in with a large force. In addition, the cylindrical insulator is crushed by the force when connecting the connectors to each other and spreads out in the radial direction, and adheres closely to the cylindrical opening hole of the female connector,
The conductive part is insulated from the outside.

The above-mentioned underwater detachable connector is preferably provided with guide pins and guide pin holes for aligning both male and female connectors. Further, it is desirable to provide a locking device such as a claw or a stopper in order to maintain the coupled state after coupling the both connectors.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a male connector 8 provided with a pin having a male conductive portion 1 at its tip, and a female connector provided with a corresponding pin hole.
11 and. Both of these connectors 8 and 11 are made of an insulating material, and further, a male guide pin 3 and a female guide pin hole 12 are provided, respectively.
It is designed to be aligned when combined.

The female connector 11 is provided with a cap-shaped female conductive portion 4 having a diameter smaller than that of the opening hole 9 at the rear end of the cylindrical opening hole 9 which is a pin hole. The lead wire 20 is connected to the female conductive portion 4.

On the other hand, to the male connector 8, a mounting shaft (pin) 1B having the male conductive portion 1 fixedly attached at its tip is slidably mounted at a predetermined distance, for example, a distance H, in the connector attaching / detaching direction indicated by an arrow X. The mounting shaft 1B is locked in the male connector 8 by a stopper 1D.

Further, a lead wire connected to the male conductive portion 1 inside the mounting shaft 1B.
Through 20, the mounting shaft 1B itself is made of an insulating material.

Further, a cylindrical insulator 5 that is expandable and contractible in the diameter and the axial direction is interposed between the male conductive portion 1 fixed to the tip of the mounting shaft 1B and the cylindrical protrusion 6 provided on the male connector 8 side. .

Note that, in FIG. 2, the IC shows an insulating portion interposed between the male conductive portion 1 and the expanded diameter portion of the mounting shaft 1B.

As the tubular insulator 5, a tubular bag made of an insulating material such as a stretchable rubber filled with a liquid or a flexible and flexible tubular insulating material is used. As shown, a spring 5A that axially extends the tubular insulator 5.
May be built in.

Next, the coupling operation of the above-mentioned underwater detachable connector will be described.

After the guide pin 3 of the male connector 8 and the guide pin hole 12 of the female connector 11 are aligned, the male conductive portion 1 is inserted into the opening hole 9 of the female connector 11. Since the diameters of the portion 1, the tubular insulating portion 5 and the tubular projection 6 are made larger, the male conductive portion 1 is smoothly inserted into the opening hole 9 and coupled with the female conductive portion 4.

Then, when the male connector 8 is further pressed against the female connector 11, the cylindrical projection 6 is crushed by the cylindrical insulator 5 and spreads in the radial direction R thereof as shown in FIG. Stick inside. Then, the male conductive portion 1 and the female conductive portion 4 are insulated from the outside.

After that, the lock claw 7 of the male connector 8 is hooked on the stopper 10 of the female connector 11 to lock the male connector 8 and the female connector 11.

The connection between the male connector 8 and the female connector 11 may be released in the reverse order of the above.

[Effect of device]

As described above, according to the present invention, a female conductive member having a diameter smaller than the opening is provided at the inner end of the cylindrical opening hole of the female connector made of an insulating material, and the female connector made of an insulating material is attached to and detached from the female connector. The male connector is provided with a mounting shaft with a male conductive part fixed to the tip so that it can slide in the connector's attaching / detaching direction by a predetermined distance, and the diameter and axis are between the male conductive part at the tip of the mounting shaft and the male connector side. Since the tubular insulator that is expandable and contractible in the direction is interposed, when the female connector and the male connector are coupled, the water in the pin hole is easily drained, and it is not necessary to push in with a large force. As a result, the connector can be easily attached and detached.

Further, when the male and female connectors are coupled to each other, the tubular insulator that is crushed and expanded in the radial direction comes into close contact with the inside of the opening hole of the female connector, so that the conductive portion is insulated from the outside.

[Brief description of drawings]

FIG. 1 is a side view including a partial cross-section showing a state before coupling of a two-pole underwater detachable connector according to the present invention, FIG. 2 is an enlarged side view of a male conductive portion, and FIG. 3 is a tubular insulation. FIG. 4 is a side cross-sectional view of the body, and FIG. 4 is a side view including a partial cross-section showing a state before the connection of the conventional underwater detachable connector. DESCRIPTION OF SYMBOLS 1 ... Male conductive part, 1B ... Mounting shaft, 4 ... Female conductive part, 5 ... Cylindrical insulator, 8 ... Male connector, 9 ... Open hole, 11 ... Female connector.

Claims (1)

[Scope of utility model registration request] 1. A female connector made of an insulating material, wherein a female conductive portion having a diameter smaller than that of the opening hole is provided at the rear end of the cylindrical opening hole, and a male connector made of an insulating material is attached to and detached from the female connector. A mounting shaft with a male conductive part fixed at the tip is slidable in the connector attachment / detachment direction for a predetermined distance, and can be expanded and contracted in the diameter and axial direction between the male conductive part at the tip of the mounting shaft and the male connector side. Underwater detachable connector with a simple tubular insulator.