JPH0126957Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application and overview of the invention] The present invention is a flexible pipe connector, particularly a type of coupling device that connects pipes connected to each other using a coupling device consisting of a male and a female. This relates to a flexible pipe connector, and by providing a lock release mechanism on the male side of the connector to release the connection between this and the female connector, the male and female connectors can be joined by a unidirectional operating force. This allows them to be separated at the same time.

[Prior art and its problems] As one of the devices that utilizes a flexible pipe connection device using a coupling device, a so-called click-type gas connection device that enables a one-touch device is known. As shown,
An annular groove 10 is formed on the outer periphery of the tip of the plug 1 protruding from the plug body A.

In this type of gas tank, the gas rubber pipe and the gas tank can be connected and separated with one touch by using the mechanism shown in FIGS. 5 and 6.

That is, the plug 1 has an annular groove 1 at its tip.
On the other hand, the socket 2 is provided with a rubber cylinder 21 which is pressed against the end face of the plug 1 and biased by a spring 26, a holding cylinder 22 in which the rubber cylinder 21 is housed, and a holding cylinder 22 which has the rubber cylinder 21 built therein. A ball 23 is provided on the cylinder 22, and a reciprocating cylinder 24 is fitted onto the holding cylinder 22 so as to be slidable in the axial direction and is biased in the projecting direction by a spring 27.

In this case, when the holding cylinder 22 is fitted onto the tip of the plug 1 and the socket 2 is pushed in, the rubber cylinder 2
1 is shrunk, and the ball 23 and the annular groove 10 match, and the reciprocating cylinder 2, which had been engaged with the ball 23 until now,
The stepped portion 25 of No. 4 presses the ball 23 into the annular groove 10, and the engagement is disengaged and the reciprocating tube 24 protrudes, and the plug 1 and socket 2 are connected in a non-removable manner as shown in FIG.

Conversely, when the reciprocating cylinder 24 is moved backward from the state shown in FIG. comes off, and socket 2 can be removed.

However, with the conventional type described above, it is troublesome to remove the socket 2, and when the flexible pipe connector is incorporated into a box socket that is embedded in a wall or floor, a special device is required to remove the socket 2. Become.

This is because when removing the socket 2, the reciprocating cylinder 24 must be pulled forward in order to cause the holding cylinder 22 and the retractable cylinder 24 to slide relative to each other.

[Technical Problem] The present invention consists of a plug 1 that is attached to the end of a fixed pipe such as a gas tank, and a socket 2 that is connected to the plug and to which a flexible pipe is connected downstream. The reciprocating cylinder 24 is of a type that is provided with a cylinder 24 and is in a protruding state when the plug 1 and the socket 2 are connected, and in a non-protruding state, the plug 1 and the socket 2 are in an unconnected state. In order to simplify the operation of removing the socket 2 from the plug 1, the object is to make the reciprocating cylinder 24 retreat into the socket 2 by pushing the socket 2 toward the plug 1 side.

[Means] The technical means of the present invention for solving the above problems is to provide a rib 11 around the outer periphery of the tip of the cylindrical plug 1 and fit a sliding tube 12 on the outside of the cylindrical plug 1.
2 is lightly biased toward the tip by a spring 13 so as to come into contact with the rib 11, and the outer periphery of the tip of the sliding tube 12 is chamfered to form a tapered surface 15. , the tip surface of the reciprocating tube 24 of the socket 2 is aligned with the fixing surface 1 on the outer periphery of the base of the plug 1.
4 so that it approaches or comes into contact with it.

[Effect] The above technical means works as follows.

When the socket is not connected, the sliding tube 12 fitted onto the plug 1 is urged toward the tip by the spring 13 and comes into contact with the rib 11. A tapered surface 1 is provided on the outer periphery of the tip of the sliding tube 12.
5 is formed, and the tapered surface portion and the rib 11
As a result, a shallow annular groove is formed on the outer periphery of the plug 1.

Now, in this state, when the socket 2 is fitted onto the plug 1 and the socket 2 is pushed in, the rubber tube 21 of the socket 2 contracts and the ball 23 is inserted into the rib 11 of the plug 1, as in the conventional socket 2 described above. and sliding tube 1
This corresponds to the shallow annular groove formed by the tip tapered surface 15 of No. 2.

At the same time, the reciprocating tube 24 of the socket 2 is made to protrude by the elastic force of the spring 27 that urges it in the protruding direction, and the stepped portion 25 of the reciprocating tube 24, which had been engaged with the ball 23, is now pushed out. , attempts to push the ball 23 deeper into the annular groove in order to widen the shallow annular groove at the tip of the plug.

When the ball 23 tries to spread the shallow annular groove at the tip of the plug and penetrate deeply into it, the sliding tube 1
2 is moved back against the spring 13 as the ball 23 enters, whereby the ball 23 completely engages with the rib 11 at the tip of the plug so as to prevent it from coming off. Further, the reciprocating tube 24 of the socket 2 is also in its most protruding state.

Next, to remove the connected socket 2,
From this connected state, it is sufficient to push the socket 2 further toward the plug 1 side.

That is, when socket 2 is connected,
Since the front end surface of the reciprocating tube 24 of the socket 2 is in contact with or approaching the fixed surface 14 on the outer periphery of the base of the plug 1, when the socket 2 is pushed further toward the plug 1 side, as the socket 2 is pushed in, The reciprocating cylinder 24 receives a force from the fixing surface 14 and is retracted inward of the socket 2.

When the reciprocating cylinder 24 is retracted inward of the socket 2, the ball 23 moves against the stepped portion 2 of the reciprocating cylinder 24.
It corresponds to the large diameter part following 5. At the same time, the ball 2
3 is lifted by the tapered end surface 15 of the sliding tube 12 which is urged forward by the spring 13, and the ball 23 is thereby pushed up against the stepped portion 25 of the reciprocating tube 24.
It returns to the initial state where it is re-engaged.

After that, when the reciprocating tube 24 is pulled out, the plug 1 also returns to the initial invitation state, and the socket 2 can be removed from the plug 1.

[effect] The present invention has the following unique effects.

Since the connected socket 2 can be removed by simply pushing the socket 2 toward the plug 1, the socket 2 can be easily attached and detached. Furthermore, when used in a box or the like, no special removal mechanism is required.

[Example] Next, an example of the present invention described above will be described in detail with reference to the drawings.

Figure 1 shows a gas tank in which the present invention was implemented.

The plug 1 protruding from the Kotuku main body A has a cylindrical shape with a rib 11 around its tip, and the outer circumferential surface of the plug 1 installation part in the Kotuku main body A serves as the above-mentioned fixing surface 14. There is. A sliding tube 12 biased toward the tip by a spring 13 is fitted onto the plug 1, and the outer periphery of the tip of the sliding tube 12 is chamfered to form a tapered surface 15. Therefore, a shallow annular groove 16 is formed by the tapered surface 15 and the rib 11 at the tip of the plug. Also, the above spring 1
The elasticity of No. 3 is set to be weaker than that of the spring 27 that urges the reciprocating tube 24 of the socket 2 to protrude.

When the socket 2 is fitted over the plug 1 and the socket 2 is pushed in from the initial state shown in FIG.
It is pushed out in the direction of the plug by the small diameter portion 28 that follows.

When the ball 23 is pushed out in the direction of the plug 1,
As shown in FIG.
5, the ball 23 fully engages the rib 11 of the plug 1.
That is, socket 2 is connected.

Subsequently, when the socket 2 is pushed further toward the plug 1 from the state shown in FIG. 2, the reciprocating cylinder 24 is pushed inwardly into the socket 2 by the fixing surface 14 on the outside of the proximal end of the plug. At the same time, the sliding tube 12 also protrudes forward due to the biasing force of the spring 13, and as shown in FIG. Due to this, the ball 23 and the stepped portion 2 of the reciprocating cylinder 24
5 becomes engaged again.

Thereafter, when the socket 2 is further pulled out from this state, the socket 2 is removed from the plug 1.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the embodiment of the invention, Figures 2 and 3.
The figure is an explanatory diagram of its operation, and FIGS. 4 to 6 are explanatory diagrams of a conventional example. In the figures, 1... plug, 2... socket, 11... rib, 12... sliding tube, 13... ...Spring, 14...Fixed surface, 15...Tapered surface, 24...Movement/retraction cylinder.

Claims (1)

[Scope of utility model registration request] It consists of a plug 1 that is attached to the terminal end of a fixed pipe such as a gas tank, and a socket 2 that is connected to the plug and to which a flexible pipe is connected downstream. 24 is the tip of the cylindrical plug 1 in a type that is in a protruding state when the plug 1 and the socket 2 are connected, and in a non-protruding state, the plug 1 and the socket 2 are in an unconnected state. A rib 11 is provided around the outer periphery of the part, and a sliding tube 12 is fitted onto the outside, and the sliding tube 12 is lightly biased toward the tip with a spring 13 to abut against the rib 11.
The outer periphery of the tip of the plug 2 is chamfered to form a tapered surface 15, and in addition, when the socket 2 is installed, the tip surface of the reciprocating tube 24 approaches the fixing surface 14 on the outer periphery of the base of the plug 1. A flexible pipe fitting that makes contact.