JP2002089777A - Pipe end closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a pipe end closing device 1 to be easily fitted into a pipe P. SOLUTION: With a swing member 28 swung to an upper side against the force of an energizing means 30, the force is removed from the swing member 28 to swing the swing member 28 downward after a tube body 3 is fitted into the pipe P through an opening 29. By this, the pipe P can be held by the edge part 29a of the opening 29 on the free end side of the swing member 28 and the edge part 29b of the opening 29 on the pivot shaft 24 side of the swing member 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe end closure.

[0002]

2. Description of the Related Art Conventionally, immediately after completion of plumbing work of a water pipe, water is filled in the plumbing system at a stage where the plumbing system can be repaired, and then the open end of the plumbing system pipe is closed with a plug. The piping system was used as a closed space, and pressure was applied to water in the piping system to check for leaks in the piping system.

[0003]

Disadvantages of the prior art The above prior art has the following disadvantages. At the time of the above-mentioned work, as described above, since the opening end of the pipe of the piping system was closed with a stopper, the stopper came off due to water pressure during the check, or on the contrary, even if the stopper was removed after the check was completed. There was a drawback that there was no.

[0004]

The present invention employs the following means to solve the above-mentioned drawbacks. The invention according to claim 1 is a main body having a downwardly projecting cylindrical body which is fitted into an upper end portion of a pipe having an open upper end from above, and whose axial center is oriented vertically and an annular packing is fitted around the outer peripheral portion. A swinging member provided on the main body so as to be swingable up and down through a pivot having a horizontal axis and movable in a direction perpendicular to the axis of the pivot; and a swinging member directed downward. And an opening through which the pipe passes. The swinging member is opened in a state where the swinging member is swung upward against the force of the urging means. After the cylindrical member is fitted into the pipe through the pipe, when the rocking member is rocked downward by removing the force from the rocking member, the edge of the opening on the free end side of the rocking member and the rocking of the opening The tube is held and held by the pivotal edge of the member. The invention according to claim 2 is the invention according to claim 1, wherein an air vent hole is formed in the main body so as to be openable and closable by a valve body.

[0005]

According to the present invention, the following effects can be obtained by the above configuration. According to the first aspect of the present invention, in a state where the swinging member is swung upward against the force of the urging means, after the tube is fitted into the pipe through the opening, the force is removed from the swinging member. When the rocking member is rocked downward, the edge of the opening on the free end side of the rocking member,
Since the pipe is pinched and held by the edge of the opening on the pivot side of the swinging member, the pipe end closing device reliably and easily closes the open end of the pipe belonging to the piping system. On the other hand, after the check is completed, the swinging member is swung upward against the force of the urging means, and then the pipe end closing tool is easily removed from the pipe by pulling the pipe end closing tool upward. I can do it. According to the second aspect of the present invention, air can be removed from the pipe in a state where the pipe end closing tool is attached to the pipe end.

[0006]

Embodiments of the present invention will be described below. The pipe end closing device 1 is a downwardly projecting tubular body 3 fitted into the upper end of a pipe P having an open upper end from above, and having an axial center oriented vertically and an annular packing 4 fitted around the outer periphery. Has a main body 2 having An air vent hole 6 is formed in the main body 2, and a male screw portion 9 formed on the outer peripheral surface of the valve element 8 is screwed into a female screw portion 7 formed on the upper inner peripheral surface of the air vent hole 6. . The valve 8 is
An annular contact member 10 is provided at a lower portion. The contact member 10 is brought into close contact with a valve seat portion 11 formed in the air vent hole 6 so that the air vent hole 6 is closed. When the contact member 10 is removed from the valve seat 11, the inside of the cylindrical body 3 is connected to the outside air via the air passage 12 and the air vent hole 6 formed in the valve body 8.

At the lower part of the main body 2, there is provided an annular hanging male screw 17 with a gap 16 in which the pipe P is fitted. The hanging male screw 17 is provided in an opening 19 formed in the fixing member 18. The female screw tube 20 is screwed into the drooping male screw portion 17, and the female screw tube 20 and the main body 2
The fixing member 18 is sandwiched by the projecting portion above the hanging male screw portion 17.

The fixing member 18 is provided with a hanging wall 22, and a pair of brackets 23 facing each other is provided on the hanging wall 22, and a pivot 24 having a horizontal axis is passed to these brackets 23. A pair of brackets 25 facing each other have elongated holes 26 formed in them.
The swing member 28 is formed integrally with these brackets 25. With such a configuration, the swing member 28 can swing up and down and can move in a direction perpendicular to the axis of the pivot 24. An opening 29 into which the pipe P is fitted is formed in the swing member 28,
The lower part of the cylinder 3 is fitted in the opening 29. The swing member 28 is urged by an urging means 30 such as a spring to swing downward.

[0009]

In the state where the swinging member 28 is swung upward against the force of the urging means 30, the opening 29 is used.
After the cylindrical body 3 is fitted into the pipe P through the through hole, when the rocking member 28 is rocked downward by removing the force from the rocking member 28, the rocking member 28 can be rocked up and down and the pivot 24 Since it is movable in the direction perpendicular to the axis, the opening 29
The edge 29 a on the free end side of the swing member 28 and the opening 29
The pipe P can be sandwiched and held by the pivot member 24 and the edge 29b on the pivot 24 side. Then, after attaching the pipe end closure 1 to the opening of the other pipe of the piping system, the contact member 10 of the valve body 8 is separated from the valve seat portion 11 so that air can escape from the air vent hole 6. , Fill the piping system with water. After that, the contact member 10 of the valve body 8 is brought into contact with the valve seat portion 11,
After closing the air vent hole 6 to make the piping system a closed space, pressure is applied to water in the piping system to check whether there is any leakage in the piping system. After the check is completed, the pipe end closing device 1 is removed from the pipe P in the reverse procedure.

[0010]

[Modifications and the like] Modifications and the like will be described below. (1) The main body 2 and the fixing member 18 may be integrated. (2) The shape of the main body 2 is arbitrary.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

[Explanation of symbols]

 P pipe 1 pipe end closure 2 body 3 cylinder 4 annular packing 24 pivot 28 swinging member 29 opening 29a edge 29b edge 30 biasing means

Claims (2)

[Claims] 1. A main body having a downwardly projecting cylindrical body which is fitted into an upper end of a tube having an open upper end from above, and has an axial center oriented vertically and an annular packing fitted around an outer periphery thereof. A swinging member provided on the main body via a pivot having a horizontal axis so as to be vertically swingable and movable in a direction perpendicular to the axis of the pivot, and biasing the swinging member downward. An opening through which the pipe passes, and wherein the swinging member is swung upward against the force of the biasing means, and the swinging member is provided with a pipe through the opening. After fitting the cylindrical body to the swinging member, when the swinging member is swung downward by removing the force from the swinging member, the edge of the opening on the free end side of the swinging member,
A pipe end closing device adapted to pinch and hold a pipe with a pivot-side edge of a swinging member. 2. The pipe end closing device according to claim 1, wherein an air vent hole is formed in the main body so as to be openable and closable by a valve body.