JPH11210025A - In-pipe foreign matter discharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge foreign matter in a branch pipe for connecting a discharger for discharging the foreign matter in the pipe efficiently even when a rust knob, etc., are generated in the branch pipe and the inside diameter of the pipe is reduced. SOLUTION: The in-pipe foreign matter discharger has a drain pipe 17 detachably installed to an upward branch pipe 14 branched from a pipeline 11 and a discharging instrument 35, which is mounted movably into the drain pipe 17 while being inserted into the branch pipe 14 and being able to reach into the pipeline 11. The discharging instrument 35 is composed of a cylindrical body, in which a lower end section is opened, while an edge section 37 is formed to the section of the opening 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for discharging foreign matter in a pipe, and more particularly to a pipe for connecting a branch pipe such as a fire hydrant branched from a pipe to discharge foreign matter flowing inside the pipe to the outside of the pipe. The present invention relates to an apparatus for discharging foreign matter in a pipe.

[0002]

2. Description of the Related Art Conventionally, when foreign matter flowing in a pipeline is discharged to the outside of the pipeline, for example, a fire hydrant main body is removed from a fire hydrant branch pipe connected to the pipeline in a branched state.
Instead, a drain pipe is attached to discharge foreign substances mixed in the water at the same time as drainage during the usual pipe washing operation. However, in this configuration, relatively heavy foreign matter flowing down the pipe bottom is difficult to be discharged, and requires a large amount of drainage,
The economy is bad.

[0003] For this reason, conventionally, a discharger formed of a tubular body is provided in a drain pipe, and this discharger can be made to reach the bottom of a pipe through a branch pipe. It has been proposed in 4-339927. The device described in this publication is configured as shown in FIG.

[0004] That is, in FIG. 4, reference numeral 11 denotes a pipe for water supply, which is made of ductile cast iron pipe, and is laid horizontally in a state of being buried underground. 12
Is a pit for fire hydrant, which has been cut from the ground surface 13,
Inside the pit 12, a branch pipe 14 that branches upward from the pipe line 11 is provided. The branch pipe 14 is provided with a sub-valve 15. A flange 16 is provided at an upper end of the branch pipe 14, and a hydrant (not shown) is attached to the flange 16 in a normal case.

[0007] Reference numeral 17 denotes a drain pipe, which is connected to the flange 16 after removing the above-mentioned fire hydrant from the flange 16 when discharging foreign matter in the pipe line 11. The drain pipe 17 is formed in an L shape having a vertical portion 18 extending upward from the flange 16 and a horizontal portion 19 extending laterally from the upper end of the vertical portion 18. A drain hose 22 on the ground is connected to a tip of the horizontal portion 19 via a drain valve 20 and a joint 21.

With this configuration, the drain pipe 1
The space inside 7 communicates linearly with the inside of the pipe line 11 via a branch pipe 14 having a sub-valve 15. Inside the drainage pipe 17 and the branch pipe 14 having the sub-valve 15, a discharger 26 composed of a cylindrical body having openings 24 and 25 at both upper and lower ends is movable vertically. Has been inserted. The vertical portion 18 of the drain pipe 17 can accommodate the discharger 26.

A vertical handle shaft 27 is connected to the upper end of the discharger 26. The handle shaft 27 is connected to the vertical portion 18 and the horizontal portion 19 of the drain pipe 17 at the upper end of the drain pipe 17. Through the fixing screw 28 provided in the drain pipe 17
Projecting upward. At the upper end of the handle shaft 27 on the ground, a handle 29 is provided. The handle shaft 27 penetrates a loosened fixing screw 28 in a sealed state so as to be slidable up and down. Therefore, when the handle 29 is moved up and down, the ejector 26 is connected to the drain pipe 17 Is moved up and down between a position inside the pipe 11 and a position inside the pipe line 11 via the branch pipe 14. Specifically, the ejector 26
As shown by the phantom line in FIG.
Can be inserted into the conduit 11 to a position corresponding to the bottom of the conduit 11. At this time, the upper opening 24
Is configured to communicate with the inside of the branch pipe 14. If the handle shaft 27 is fixed by tightening the fixing screw 28, the ejector 26 can be held at an arbitrary position.

In such a configuration, when the foreign matter in the pipe 11 is discharged to the outside, the sub-valve 15 of the branch pipe 14 is closed, and the pipe is originally attached to the flange 16 of the branch pipe 14. Remove the hydrant, and instead,
Drainage pipe 1 containing discharger 26 inside vertical portion 18
7 is attached. A drain hose 22 is connected to a drain valve 20 of the drain pipe 17 via a joint 21.

In this state, the sub-valve 15 is opened and the fixing screw 28
The handle 29 is pushed down with the lever loosened, and the ejector 26 is pushed into the inside of the pipeline 11 so that the opening 25 at the lower end thereof faces the bottom of the pipeline 11.

[0010] Then, when the fixing screw 28 is tightened and the drain valve 20 is opened, the water near the opening 25 at the lower end of the drainer 26 is vigorously sucked into the opening 25 by the action of the water pressure in the conduit 11. And this opening 25
Then, the liquid is guided to the branch pipe 14 through the cylindrical discharger 26 and the opening 24 at the upper end thereof, passes through the branch pipe 14 and the drain pipe 17, and is discharged to the outside by the drain hose 22. At this time, at the same time, relatively heavy foreign substances flowing at the bottom of the pipe 11 are also discharged out of the pipe together with water.

[0011]

However, as shown in FIG. 4, there are many cases where rust bumps 31 are generated on the branch pipe 14, and at that time, the inner diameter of the branch pipe 14 becomes small. Then, only the small-diameter discharger 26 corresponding to the reduced inner diameter can be used, and there is a problem that it is difficult to efficiently discharge the foreign matter in the pipeline 11.

Accordingly, the present invention solves such a problem, and when the inside diameter of a branch pipe for connecting a discharge device for discharging foreign matter in the pipe is reduced due to rust or the like, It is another object of the present invention to efficiently discharge the foreign matter in the pipe.

[0013]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention provides a drain pipe detachably attached to an upward branch pipe branched from a pipeline, and a drain pipe movably provided in the drain pipe. A discharger inserted into the branch pipe so as to be able to reach the inside of the conduit, the discharger is formed of a cylindrical body having an open lower end, and a blade portion is formed at a portion of the opening. Is formed.

With this configuration, when the ejector is moved toward the inside of the pipe by pushing down or the like, the blade at the opening at the lower end of the ejector removes rust bumps and the like on the inner surface of the branch pipe. become. For this reason, a large-diameter discharger can be used without being affected by rust bumps and the like, and foreign matters in the pipeline can be efficiently discharged.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 3 by attaching the same reference numerals to the same members as those shown in FIG. .

As shown in FIGS. 1 to 3, the apparatus for discharging foreign matter in a pipe according to the present invention has a discharger 35 formed of a cylindrical body as in the prior art. Is formed as large as possible in the range that can pass through the branch pipe 14 provided with. An opening 25 is formed at the lower end of the discharger 35, and a wall of the discharger 35 forming the periphery of the opening 25 is provided with an enlarged view of a main part of FIG. 2 and a developed view of FIG. As shown in detail, arch-shaped cutouts 36 are formed at one or more positions along the circumferential direction. Further, an inner blade-shaped blade portion 37 is formed at the lower end of the ejector 35 except for the portion where the cutout portion 36 is formed.

In such a configuration, when discharging foreign matter in the pipeline 11, a drain pipe 17 is attached in the same manner as in FIG. Then, the auxiliary valve 15 is opened, the drain valve 20 is further opened, and the drain 29 is pushed down by operating the handle 29 while draining the water in the pipeline 11. Then, the blade portion 37 of the ejector 35 hits the rust bump 31 in the branch pipe 14, and the rust bump 3 is pressed by the pushing force.
Crush 1 At this time, when a rotational force is simultaneously applied to the blade portion 37 of the ejector 26 by operating the handle 29, the rust bump 31 can be efficiently crushed by the action of the notch portion 36 and the like. The crushed rust bumps 31
It is prevented from being discharged to the outside by the water flow inside and mixed into the pipeline 11. At this time, the blade portion 37 of the ejector 35
When the inner blade is used as described above, the rust bumps 31 can be removed in the largest possible range as compared with the case where the inner blade is used as the outer blade. However, outer blades or other forms of blades may be used.

Thereafter, as shown by the imaginary line in FIG. 1, the ejector 35 is inserted into the conduit 11 and the notch 36 is made to face the bottom of the conduit 11 as in the case of FIG. As a result, foreign matter in the pipe 11 is discharged. At this time, since the notch 36 is formed, there is no problem even if the ejector 35 is brought close to the bottom of the conduit 11 to such an extent that the opening 25 is closed, and the foreign matter present at this bottom can be efficiently discharged. Can be. Further, as described above, since the discharger 35 is formed with an outer diameter as large as possible, foreign substances can be discharged efficiently by this as well.

When the operation of discharging foreign matters is completed, the discharger 35 is pulled up to the inside of the drainage pipe 17 by operating the handle 29, the drainage valve 20 and the sub-valve 15 are closed, and the drainage pipe 17 is After removal, the hydrant is attached to the flange 16 as before.

[0020]

As described above, according to the present invention, the pipe line is provided so as to be movable in a drain pipe detachably attached to an upward branch pipe branched from the pipe line and inserted into the branch pipe. An ejector that can be reached inside
Since the lower end portion is formed of a tubular body having an opening, and a blade portion is formed at the opening portion, it is possible to remove rust and the like on the inner surface of the branch pipe by the blade portion, For this reason, a large-diameter discharger can be used without being affected by rust bumps and the like, so that foreign substances in the pipeline can be discharged efficiently.

[Brief description of the drawings]

FIG. 1 is an overall view of a pipe foreign matter discharging device according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a lower end portion of the ejector in FIG.

FIG. 3 is a development view of a lower end portion of the ejector.

FIG. 4 is an overall view of a conventional pipe foreign matter discharging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Pipeline 14 Branch pipe 17 Drainage pipe 25 Opening 35 Discharger 36 Notch 37 Blade

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Eiji Yamamoto, Inventor 1145 Ondacho, Onda-cho, Aoba-ku, Yokohama, Kanagawa Prefecture (72) Toshihiro Kubo 2-26-26 Ohama-cho, Amagasaki-shi, Hyogo Kubota Co., Ltd. Inside the Mukogawa Works (72) Inventor Yutaka Isu 2-26, Ohama-cho, Amagasaki City, Hyogo Prefecture Inside the Kubota Mukogawa Works

Claims (1)

[Claims] 1. A drain pipe detachably attached to an upward branch pipe branched from a pipe, and movably provided in the drain pipe and inserted into the branch pipe so as to reach the pipe. And a discharger, wherein the discharger is formed of a cylindrical body having an open lower end, and a blade portion is formed at the opening. .