JP2021139475A - Multipurpose quick joint - Google Patents

Abstract

To enable a quick joint to simultaneously connect a gas passage and electricity, by solving a problem that a quick joint having a socket body and a sleeve made of resin cannot be electrically energized, while a quick joint made of metal has a risk of electric short-circuit.SOLUTION: A socket body and a sleeve are made of resin, a conductor is made to pass through the conductor, and a conductive adhesion is coated in the inside of the socket, or a metallic ring is provided on the inner side of the socket. The conductor is connected to the conductive adhesion or the metallic ring.SELECTED DRAWING: Figure 1

Description

The present invention relates to a quick joint that connects a hose through which a gas such as air passes with one touch. It is also commonly called a coupler and is widely used.

The quick joint consists of a socket body, a sleeve, and a hose nipple. By inserting a plug into the socket, a hose that allows gas such as air to pass through can be connected with a single touch. The function is to make it easy to connect a hose that allows gas to pass through, and to prevent gas from leaking from the socket even if the connection is disconnected.

The quick joint in the prior art document also basically has a structure as shown in FIG. When the plug is inserted into the socket, the valve 3 in the figure is pushed backward and moves in the direction of the hose nipple. When the valve moves, a gas passage can be secured between the valve and the socket body. When the plug is not plugged in, the valve 3 is pushed by the valve spring 12 towards the inlet of the socket, and the valve 3 and the valve O-ring 10 are designed to completely close the gas flow.

Patent 1992-307524

The quick joint whose socket body and sleeve are made of resin cannot be electrically energized. Quick joints made of metal can conduct electricity, but there is a risk of inadvertent electrical short circuits. It is an object of the present invention to enable both connection of passages through which gas flows and electrical connection with the same quick joint.

The socket body and sleeve are made of resin, a conductor is embedded in the socket, a conductive adhesive is applied to the inside of the socket body or a metal ring is provided, and this conductive adhesive and metal ring are connected to the conductor. .. The other end of the conductor is connected to a metal hose nipple.

By using the quick joint of the present invention, not only can the hose through which gas flows be easily attached and detached, but also electrical energization can be performed. The quick joint can have two different functions: securing a gas passage and passing electricity. It can be called a multipurpose quick joint.

Since the multipurpose quick joint of the present invention uses resin for the socket body and the sleeve, it is completely electrically insulated, and even if the socket of the quick joint comes into contact with the surrounding charging portion, it will not be short-circuited.

There is a control cableless arc welder that does not use a control cable as a device that allows not only gas to flow through the gas hose but also electricity to flow at the same time. When the multipurpose quick joint of the present invention is used in an arc welder that does not use a control cable at all, short circuit accidents are eliminated and quality is improved. Since the fuse is not blown due to a short circuit, the work is not interrupted.

Cross-sectional view of an embodiment of a multipurpose quick joint socket using the conductive adhesive of the present invention. Cross-sectional view of an embodiment of a multipurpose quick joint socket using the metal ring of the present invention. Cross-sectional view of an embodiment of a multipurpose quick joint socket in which the socket body of the present invention is divided. Cross-sectional view of an embodiment when a plug is inserted into the socket of the multipurpose quick joint of the present invention. Cross section of conventional quick joint socket

FIG. 1 shows a cross-sectional view of an example of a multipurpose quick joint using the conductive adhesive of the present invention, and FIG. 2 shows a cross-sectional view of an example of a multipurpose quick joint using a metal ring. The conductor 4 is built in the socket body of 2 in FIG. This conductor is connected to the conductive adhesive of FIG. 1 in FIG. In FIG. 2, 13 trumpet-shaped metal rings are connected.

FIG. 4 shows a cross-sectional view when a plug is connected to the quick joint of the present invention. When the plug is inserted into the socket and connected, the plug comes into contact with the conductive adhesive of 7 or the metal ring of 13.

The conductor of 4 is connected to a hose nipple made of the metal of 5. The electricity supplied from the plug will be supplied through 7 conductive adhesives or 13 metal rings, 4 conductors and 5 hose nipples.

In the multipurpose quick joints of the present invention shown in FIGS. 1 and 2, since the conductor 4 is embedded in the socket body made of resin, the charging portion is not exposed to the outside. Therefore, there is no need to worry about an electrical short circuit.

In FIGS. 1 and 2, the conductor 4 is passed through the socket body of 2, but the socket body of 2 is divided into a cylindrical shape in the gas passage direction, and the outer socket body having a large diameter is made of resin. The inner socket body with a small diameter may be made of metal.

FIG. 3 is a cross-sectional view of an embodiment of a multipurpose quick joint in which the socket body of the present invention is divided into two parts. In this case, it is not necessary to embed the conductor in the resin, but the socket body is divided into the outer socket body of 14 in the figure and the inner socket body of 15 in the figure.

In the multipurpose quick joint in which the socket body of the present invention shown in FIG. 3 is divided into two, the outer socket body of 14 and the sleeve of 1 are made of resin, so that the charging portion is not exposed.

The multipurpose quick joint of the present invention allows mechanical and electrical connections of gas hoses to be made simultaneously, allowing both electrical and gas connections to be made in a single operation. Gas and electricity can be connected at the same time.

In recent years, due to advances in communication technology, many products that use PLC (power line carrier technology) to reduce signal lines have become widespread. There is an arc welder that allows not only gas to pass through the gas hose but also electricity to pass through the gas hose, but if it is possible to connect gas and electricity, people's lives will be more convenient. Become.

Not only in arc welders, but also in equipment that uses both gas hoses and multi-core cabtyre cables, gas hoses that carry both gas and electricity are expected to expand. The multipurpose quick joint of the present invention may be widely used for connecting such gas hoses.

1 Sleeve 2 Socket body 3 Valve 4 Conductor 5 Hose nipple 6 Ball 7 Conductive adhesive 8 Plug nipple 9 Sleeve spring 10 Valve O-ring 11 Socket O-ring 12 Valve spring 13 Metal ring 14 Outer socket body 15 Inner socket body

Claims (3)

In a quick joint that connects a hose that allows gas such as air to pass through with one touch, the sleeve and socket body are made of resin and the hose nipple is made of metal, a conductor is provided inside the socket body, and the socket that fits with the plug of the socket body. A quick joint characterized in that a conductive adhesive is applied to the inner surface of the hose, and the conductive adhesive and the hose nipple are electrically connected by the conductor. The quick joint according to claim 1, wherein a metal ring is provided in the socket body, and the metal ring and the hose nipple are connected by the conductor. The quick joint according to claim 1, wherein the socket body is divided into two in a cylindrical shape in the gas passage direction, the outer portion having a large diameter is made of resin, and the inner portion having a small diameter is made of metal. ..

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