JP2009174189A - Drainage implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage implement which enables turbid water in a water supply pipe to be easily observed, for example, in the replacement of a water works meter. <P>SOLUTION: This drainage implement 13 is used in the attachment/detachment and replacement of the water works meter 3 connected to the water supply pipe 1 for running water. An opening is provided on at least the upstream end side of a pipe body 15 having both ends equipped with connecting portions 17A and 17B for the water supply pipe 1, so as to be connected to the water supply pipe 1 as a substitute for the water works meter 3; a drainage connection portion 21 equipped with a drain outlet 21A so as to connect a drain hose 19 is provided in the proper position of the pipe body 15; a transparent portion for checking the turbid water in the pipe body 15 is provided in the pipe body 15; the pipe body 15 is a pipe in which openings communicating with each other are provided on the upstream and downstream end sides; and the downstream endside opening and the drain outlet are openably/closably constituted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drainage device used for draining muddy water in a water supply pipe by connecting to the water supply pipe instead of a water meter when a water meter connected to a water supply pipe is attached or detached.

The water meter used for water supply is replaced with a new water meter every eight years according to the measurement law. As shown in FIG. 2, the water meter is generally connected to a water supply pipe (see Patent Document 1).
Japanese Patent Laid-Open No. 2005-214951

  The water meter 3 is connected to the water supply pipe 1 as shown in FIG. That is, the upstream end and the downstream end of the water meter 3 can be attached to and detached from the downstream side of the on-off valve 5 disposed on the upstream side of the water supply pipe 1 via meter connection sockets 7 and 9 made of cap nuts or the like. Is connected to. A backflow prevention valve 11 is connected to the downstream side of the water meter 3.

  In the configuration described above, when the turbid water generated when the water meter 3 is attached / detached or replaced, or when the water pipe 1 is washed by removing the water meter 3 and draining from this position, the on-off valve After tightening 5 to shut off the water flow in the water supply pipe 1, the sockets 7 and 9 are loosened and the water meter 3 is removed. Thereafter, one end of a drain pipe or the like is connected to the upstream socket 7 and the other end of the drain pipe is disposed in a manhole or the like. And the turbid water in the water supply pipe | tube 1 is discharged | emitted by loosening the said on-off valve 5 and flowing water.

  When discharging muddy water as described above, conventionally, the state of muddy water discharged from the other end of the drain pipe is observed to confirm whether or not muddy water has been discharged. Therefore, when the water meter mounting position of the water supply pipe 1 is close to the arrangement position of the other end of the drainage pipe, it is relatively easy to observe the state of muddy water. When the position of the end is far away, it is necessary to reciprocate between the water meter mounting position and the other end of the drain pipe many times in order to observe the state of muddy water. There is a problem that efficiency is bad.

  The present invention has been made in view of the conventional problems as described above, and is a drainage device used when a water meter connected to a water supply pipe is attached or detached, and is connected to the water supply pipe instead of the water meter. In order to do so, an opening is provided at least on the upstream end side of the pipe main body provided with both ends of the connection to the water supply pipe, and a drain outlet is provided at an appropriate position of the pipe main body for connecting a drain hose. In addition, the pipe main body includes a transparent portion for confirming muddy water in the pipe main body.

  Further, in the drainage device, the pipe body is a pipe having an opening communicating with the upstream end side and the downstream end side, and is configured to be able to open and close the opening portion on the downstream end side and the drain port. It is characterized by this.

  According to the present invention, a pipe body connected to a water supply pipe instead of a water meter is provided with a drainage connection part for connecting a drainage hose and a transparent part for checking muddy water in the pipe body. Since it is a structure, when draining muddy water using the pipe main body connected to the water supply pipe instead of a water meter, muddy water can be observed through a transparent part. Therefore, turbid water can be observed efficiently, and the conventional problems as described above can be solved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to components having the same functions as those of the above-described conventional configuration, and redundant description will be omitted.

  A drainage device 13 connected to the water supply pipe 1 in place of the water meter 3 removed by loosening the sockets 7 and 9 for connecting the meter in the water supply pipe 1 includes a pipe body 15 formed of a transparent resin. At both ends of the pipe body 15, connection portions 17A and 17B for connecting to the water supply pipe 1 are formed. The connection portions 17A and 17B are formed in male screw portions for connection via sockets 7 and 9, respectively. However, when the attachment / detachment mechanism of the water meter 3 is unitized and the water meter 3 is attached / detached without using the sockets 7, 9, etc., the configuration of the connecting portion corresponding to the attachment / detachment mechanism may be used. It is.

  The pipe body 15 may be configured to have an opening on the upstream end side, the downstream end side may be closed in advance, and the opening communicating with the opening on the upstream end side may be a downstream end side. However, it is desirable that the opening is provided on the downstream end side. In order to connect the drainage hose 19, a drainage connection portion 21 having a drainage port 21 </ b> A is provided at an appropriate position of the pipe body 15. The muddy water that has flowed into the pipe body 15 is discharged from the drainage connection portion 21 via the drainage hose 19, so that the pipe body 15 can be made opaque and the drainage connection portion 21 can be transparent. is there.

  That is, in order to observe the state of muddy water in the pipe body 15, at least a part of the pipe body 15 should be transparent.

  In the configuration as described above, when the water meter 3 is attached to or detached from the water supply pipe 1 or when the water meter 3 is removed and the inside of the water supply pipe 1 is cleaned, the opening / closing valve 5 is first tightened. After blocking the water flow in the water supply pipe 1, the sockets 7 and 9 are loosened and the water meter 3 is removed. Next, instead of the water meter 3, connection portions 17 </ b> A and 17 </ b> B at both ends of the pipe body 15 are screwed and connected to the water supply pipe 1 through the sockets 7 and 9. Here, in the case where the opening is provided on the downstream end side of the pipe body 15, the downstream end opening is closed on the downstream end side of the pipe body 15 via the packing 23 as a closing member. And

  Furthermore, one end portion of a drainage hose 19 made of, for example, a flexible pipe is connected to the drainage connection portion 21, and the other end portion of the drainage hose 19 is positioned at a drainage place such as a manhole. Thereafter, when the on-off valve 5 is loosened, the water in the water supply pipe 1 is drained to the drainage place through the pipe body 15 and the drainage hose 19.

  Therefore, the state of the turbid water due to the scales peeled off in the water supply pipe 1 during the removal work of the water meter 3 or the turbid water generated during the cleaning of the water supply pipe 1 can be observed at the position of the transparent pipe body 15. Therefore, after the muddy water is removed, the on-off valve 5 is closed, the sockets 7 and 9 are loosened, and the pipe body 15 is removed. A new, separate water meter can then be installed.

  By the way, as described above, when the pipe main body 15 is installed in place of the water meter 3, when it is necessary to collect foreign matter from the muddy water in the drainage, the strainer 25 is provided in the opening on the upstream end side of the pipe main body 15. And the socket 7 of the pipe body 15 may be connected.

  When it is necessary to clean the inside of the water supply pipe 1 on the downstream side of the pipe body 15, a closing packing 27 is interposed between the drainage hose 19 and the drainage connection portion 21, and the drainage connection portion 21. A drain hose 19 is connected. The downstream end side of the pipe body 15 and the socket 9 are connected in a state where the packing 23 is removed. In such a state, when the on-off valve 5 is loosened and opened, the water in the water supply pipe 1 flows into the water supply pipe 1 downstream from the pipe body 15 without flowing into the drainage hose 19 side. Therefore, the water supply pipe 1 on the downstream side of the pipe body 15 can be cleaned. At this time, the water supply pipe on the upstream side of the pipe body 15 can be cleaned at the same time, and muddy water can be discharged from the tap at the downstream end.

  As understood from the above description, the turbid water in the water supply pipe 1 can be easily observed because the pipe body 15 attached to the water supply pipe 1 instead of the water meter 3 is transparent. Further, when the pipe body 15 is attached to the water supply pipe 1, it is attached in a state of being supported at both ends, so that generation of vibration can be prevented as compared with the cantilever type, and the attachment strength can be improved. Is.

It is explanatory drawing of the drainage device attached to a water supply pipe instead of a water meter. It is explanatory drawing which shows the general attachment structure of the water meter with respect to a water supply pipe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply pipe 3 Water meter 5 On-off valve 7,9 Socket 11 Backflow prevention valve 13 Drainage device 15 Pipe body 17A, 17B Connection part 19 Connection hose 21 Drainage connection part

Claims (2)

  A drainage device for use in attaching and detaching a water meter connected to a water supply pipe, and a pipe provided at both ends with a connection to the water supply pipe in order to connect to the water supply pipe instead of the water meter An opening is provided at least on the upstream end side of the main body, and a drainage connection portion provided with a drainage port for connecting a drainage hose is provided at an appropriate position of the pipe main body, and turbid water in the pipe main body is confirmed. A drainage device having a transparent part of the pipe body.   2. The drainage device according to claim 1, wherein the pipe body is a pipe provided with openings connected to each other on an upstream end side and a downstream end side, and is configured to be able to open and close the opening portion on the downstream end side and the drainage port. Drainage device characterized by being.

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