JPH0131826Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is used for connecting pipes used, for example, when connecting a water supply hose to a connecting pipe that communicates with a bathtub for cleaning the bathtub. The present invention relates to a plug, and more particularly to a pipe connection plug for connecting a fluid transport pipe to a connection pipe having a plurality of rotary operation protrusions protruding from the inner circumferential surface for attachment to a wall.

[Prior art]

In the above-mentioned plug, it is necessary to seal against the fluid at the connection point. Conventionally, as shown in Fig. 1 (see Japanese Utility Model Application Publication No. 167486/1986), a screw was installed in the middle of the plug body 01 in the axial direction of the cylinder. A portion 02 is provided, a movable collar 03 is externally fitted onto the threaded portion 02, and a cylindrical sponge rubber 05 is externally fitted between the fixed collar 04 connected to the connecting pipe side end of the plug body 01, and , the movable collar 03 is fixed to the fixed collar 04
A nut 06 is provided to displace the sponge rubber 05 to the side, the sponge rubber 05 is inserted into the connecting pipe, and the nut 06 is screwed in to compress the sponge rubber 05 in the longitudinal direction and expand it in the radial direction. 05 is brought into pressure contact with the inner peripheral surface of the connecting pipe.

However, each time the plug body 01 is connected or disconnected, the nut 06 must be rotated while keeping the plug body 01 inserted into the connecting pipe, making the connection and disconnection operations time-consuming and cumbersome. I was getting used to it.

[Problem that the invention attempts to solve]

SUMMARY OF THE INVENTION The present invention aims to provide a pipe connecting plug which is simple in structure and inexpensive, and which can be easily connected to and removed from a connecting pipe.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides the pipe connection plug described at the beginning with a connecting part for connecting the fluid transport pipe on the outer periphery of the plug body on one end side in the direction of the cylinder axis. A first collar body is connected to the other end in the axial direction, and a second collar body is connected to the middle of the plug body in the cylinder axis direction, and an elastic member is provided between the first collar body and the second collar body. A cylindrical sealing material is fitted onto the outside, and a notch is provided at a predetermined position in the circumferential direction of the first collar body for passing through the protrusion and applying a pressing force to the sealing material, and the pressing force of the protrusion is applied to the sealing material. The plug body is configured to be connected and fixed to the connecting pipe in a state where the sealing material is expanded in diameter and the sealing material is in pressure contact with the inner circumferential surface of the connecting pipe.

[Effect]

In other words, by inserting the plug body into the connecting pipe and pushing it deep, the protrusion for rotational operation originally provided inside the connecting pipe is utilized.
The protrusion acts on the sealing material to expand the diameter of the sealing material, and with the connection portion sealed, the plug body is connected and fixed to the connecting pipe.

〔effect〕

Therefore, following the original operation for connection, which is pushing the plug body into the connecting pipe, it is necessary to push it deeper into the connection, and to remove it, it is necessary to pull it out in the opposite direction. This eliminates the need for troublesome operations such as rotating the nut and holding the plug body to maintain its posture while rotating the nut, making it easy to connect and disconnect from the connecting pipe. Summer.

In addition, since the rotary operation protrusion originally provided in the connecting pipe is effectively used as a pressing member for expanding the diameter of the sealing material, the second collar is designed to receive the sealing member pushed by the protrusion. All that is needed is to connect the body to the plug body, eliminating the need for threaded parts or nuts, making the structure simple and extremely inexpensive to manufacture.

〔Example〕

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

A connecting portion 2 for connecting a fluid transport pipe such as a water supply hose is formed on the outer periphery of the plug body 1 on one end side in the cylinder axis direction, and a first collar body is formed on the other end side of the plug body 1 in the cylinder axis direction. 3 are connected in series, and a second collar body 4 is connected in the middle of the plug body 1 in the direction of the cylinder axis, and between the first collar body 3 and the second collar body 4,
An elastic cylindrical sealing material 5 is fitted onto the outside to form a pipe connection plug 6.

For example, as shown in FIG. 3, this plug 6 is attached to the tip of a water supply hose 8 as a fluid transport pipe connected to a pump 7, and this plug 6 is attached to a wall 10 of a bathtub 9. It is used by being connected and fixed to the attached connecting pipe 11.

That is, according to this usage example, by filling the bathtub 9 with a predetermined amount of hot water or water in the above-mentioned connected state and starting the pump 7, water or water is poured into the bathtub 12 connected via the connecting pipe 11. By pumping hot water under pressure, limescale and the like inside the bath pot 12 can be washed and removed.

As shown in FIGS. 4 and 5, the connecting tube 11 has protrusions 13, 13 for rotational operation protruding from its inner peripheral surface with a phase difference of 180 degrees, and
A flange 14 that presses against the wall 10 is connected to the end on the bathtub 9 side in the axial direction of the cylinder, and a threaded portion for screwing into the communication pipe 15 with the bath pot 12 at the other end. 16 is formed and the tool is inserted into said protrusion 1
3 and 13, the connecting tube 11 is rotated and screwed onto the communicating tube 15.

The second collar body 4 is configured to have a larger diameter than the inner peripheral diameter of the connecting pipe 11.

The first collar body 3 is configured to have a slightly smaller diameter than the inner circumferential diameter of the connecting pipe 11, and has a phase difference of 180 degrees in the circumferential direction, and connects the protrusions 13, 1.
Notches 17, 17 are formed that are sufficient to allow each of the three pieces to pass through.

An elastic cylindrical sealing material 5 such as soft rubber is fitted between the first collar body 3 and the second collar body 4,
As the plug body 1 is pushed into the connecting pipe 11, the sealing material 5 is pressed by the projections 13, 13, the diameter of the sealing material 5 is expanded, and the sealing material 5 is pressed against the outer peripheral surface thereof, and the projections 13, 13 are pressed against the sealing material 5. is bitten into the sealing material 5, and its action prevents it from coming off, so that the water supply hose 8 can be connected and fixed to the connecting pipe 11 in a sealed state.

In the above embodiment, the water supply hose 8 connected to the pump 7 is connected to the plug body 1, but for example, a hose with one end connected to a water tap can be connected, or one end can be connected to a steam generator. Various types of fluid transport pipes 8 can be connected, such as connecting a pipe connected to the pipe.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional example, Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a schematic vertical sectional view showing an example of use, and Fig. 4 is a main part showing a state before connection. Fig. 5 is a sectional view taken along the - line in Fig. 4, Fig. 6 is a sectional view taken along the line -
The figure is a sectional view of main parts showing a connected state. 1...Plug body, 2...Connection part, 3...First
Flange body, 4...Second collar body, 5...Sealing material, 8
... Fluid transport pipe, 10 ... Wall body, 11 ... Connection pipe, 13 ... Protrusion, 17 ... Notch.

Claims (1)

[Scope of utility model registration request] Rotation operation protrusion 13 for attachment to wall 10
This is a pipe connection plug for connecting a fluid transport pipe 8 to a plurality of connecting pipes 11 having a plurality of pipes protruding from the inner peripheral surface thereof, and the fluid transport pipe 8 is connected to the outer periphery of the plug body 1 on one end side in the cylinder axis direction. At the same time, a first collar body 3 is provided in series on the other end side in the direction of the cylinder axis,
A second collar body 4 is connected to the middle of the plug body 1 in the direction of the cylinder axis, and the first collar body 3 and the second collar body 4 are connected to each other.
An elastic cylindrical sealing material 5 is externally fitted between the collar body 4 and a pressing force is applied to the sealing material 5 at a predetermined location in the circumferential direction of the first collar body 3 through the protrusion 13. A notch 17 is provided, and the protrusion 13
The sealing material 5 is expanded in diameter by the pressing force of
A pipe connecting plug configured such that the plug body 1 is connected and fixed to the connecting pipe 11 with the sealing material 5 pressed against the inner circumferential surface of the connecting pipe 11.