JP2002147679A - Piping system, and flexion coupling pipe for piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily inspect and clean the whole flexion piping by being integrated with the inspection and cleaning of a straight pipe part. SOLUTION: This flexion coupling pipe 2 forming a flexion piping conduit by combined with a straight pipe 1 has an openable and closeable hole part 3 oppositely to the extended straight pipe 1, and the straight pipe 1 in the piping conduit can be seen from a cylindrical body 31 of the openable and closeable hole part 3, and a cleaning tool or the like can be inserted by rotating and demounting a plug 4 from the cylindrical body 31 according to the necessary after the piping.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping system suitable for inspecting and cleaning a bent pipe such as a water supply pipe, and a bent pipe for a pipe.

[0002]

2. Description of the Related Art For example, as shown in FIG. 5, a water supply pipe branching from a water supply main pipe and drawn into a residential land to reach a water tap is provided with a straight pipe 1 (1a,...) And an elbow or the like. The bent joint pipes 2 (2a,...) Are combined to form a bent pipe path bent in multiple directions.

[0003]

However, in such a bent pipe, once the pipe is once piped, the straight pipe 1 and the bent joint pipe 2 cannot be easily disassembled. For this reason, since cleaning and repair could not be performed while checking the dirt and damage in the pipeline, it was very inconvenient for maintenance, inspection, and ensuring cleanliness.

[0004] These problems are, of course, not only in single-family houses, but also in multi-dwelling houses such as condominiums in which a large number of bent pipes are arranged in layers and in parallel.

The present invention has been made in view of the above circumstances, and has as its object to provide a piping system and a piping system capable of easily performing inspection and cleaning of a bent piping path. It is to provide a joint pipe.

[0006]

According to the present invention, in order to achieve the above object, as a piping system, a straight pipe and a bent joint pipe such as an elbow are combined as described in claim 1. In a piping system for performing bent pipes in multiple directions, a bent pipe in a desired direction is provided with a freely openable / closable hole portion in a pipe portion of a bent joint pipe at a position facing an end face of a straight pipe to be extended. Is performed.

Further, as a pipe joint pipe, in a bent joint pipe such as an elbow for performing bent pipes in multiple directions while being combined with a straight pipe, the end face of the combined straight pipe is opposed to the end face of the combined pipe. An opening / closing hole is provided in the pipe portion at the location where the opening and closing can be performed so that the inside of the pipe can be visually checked and a cleaning tool can be inserted.

Further, as described in claim 3, the openable and closable hole portion protrudes outwardly from the cylindrical body having a threaded portion formed on the inner peripheral surface from the peripheral edge of the opening formed in the tubular body. And a sealing plug that opens and closes the cylindrical body and the opening so that the cylindrical body and the opening can be opened and closed while the threaded portion on the outer peripheral surface is screwed into the threaded portion of the cylindrical body.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view showing an example of a piping system according to the present invention, and FIG. 2 is an explanatory sectional view showing an example of a bent joint pipe for piping according to the present invention. The same members as those in the related art will be described with the same reference numerals.

As shown in FIG. 1, in this piping system, a bent pipe runs in a desired direction while combining a straight pipe 1 (1a,...) And a bent joint pipe 2 (2a,...) Such as an elbow. However, at this time, the bent joint pipe 2 is provided with an openable / closable hole 3 at a pipe portion facing the end face of the straight pipe 1 to be extended, and the openable / closable hole of the bent joint pipe 2 is provided. By opening 3, it is possible to visually check the inside of the straight pipe 1 and to insert a cleaning tool (not shown) into the straight pipe 1.

FIGS. 2 and 3 show a specific structure of the openable and closable hole portion 3 of the bent joint pipe 2. A tubular body 31 having a threaded portion 31b formed in the inner peripheral surface from the peripheral edge thereof is integrally formed in the opening 31a opened in the tubular body of the bent joint tube 2 so as to protrude outwardly by welding or the like. , And the cylindrical body 41
a formed on the outer peripheral surface of the cylindrical body 31
The cylindrical body 31 and the opening 31a are screwed into the threaded portion 31b.
And a sealing stopper 4 for opening and closing the container.

The threaded portion 31b of the tubular body 31 and the threaded portion 41b of the sealing plug 4 may be screwed together, and either of them may be a male or female threaded portion. Further, the head 42 of the sealing plug 4 may be a square bolt turned by a spanner or a ratchet wrench, or a screw part turned by a + screw or a-screw.

Although the bent joint pipe 2 is exemplified as a 90 ° elbow in FIG. 2, it may be a T-shaped pipe as shown in FIG. 4 or may be applied to other various pipes.

According to this embodiment constructed as described above, the bent joint pipe which is combined with the straight pipe to form a bent pipe path can be freely opened and closed at a position opposed to the straight pipe to be extended. Since the hole is provided, even after the piping, if the sealing plug is rotated and removed from the tubular body as necessary, the straight pipe in the piping path can be viewed from the tubular body.

Therefore, the condition in the bent pipe can be easily inspected without cutting or disassembling the pipe. In addition, by inserting the in-pipe cleaning tool from the tubular body in the open state and cleaning the straight pipe portion, the entire bent pipe can be easily cleaned.

Therefore, conventionally, it has been necessary to cut a bent pipe line or insert a bent wire or the like to follow the bent pipe line. However, such a work is not required, and only the sealing plug at a necessary portion is removed. Inspection and cleaning of the straight pipe can be performed.

[0017]

As described above, according to the present invention, the inspection and cleaning of the entire bent pipe can be easily performed by summing up the inspection and cleaning of the straight pipe portion.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of a piping system according to the present invention.

FIG. 2 is an explanatory sectional view showing one example of a bent joint pipe for piping according to the present invention.

FIG. 3 is an explanatory sectional view showing a use state of the bent joint pipe in FIG. 2;

FIG. 4 is an explanatory sectional view showing another example of the bent joint pipe for piping according to the present invention.

FIG. 5 is an explanatory diagram showing an example of a conventional piping system.

[Brief description of reference numerals]

 DESCRIPTION OF SYMBOLS 1 Straight pipe 2 Bend joint pipe 3 Openable and closable hole 4 Sealing plug

Claims (3)

[Claims] 1. A pipe system for performing a bent pipe in multiple directions while combining a straight pipe and a bent joint pipe such as an elbow in a pipe system of a bent joint pipe at a position opposed to an end face of an extended straight pipe. A piping system characterized by performing bent piping in a desired direction while arranging a freely openable / closable hole portion in the portion. 2. In a bent joint pipe such as an elbow that performs bent pipes in multiple directions while being combined with a straight pipe, a pipe portion at a position opposed to an end face of the straight pipe to be combined is provided with a visual inspection inside the pipe. A bent joint pipe for piping, which is provided with a freely openable and closable portion for inserting a cleaning tool or the like. 3. The openable and closable hole portion is formed by projecting a tubular body having a threaded portion formed on an inner peripheral surface from the periphery of an opening formed in a tubular body to the outside of the tube, and a threaded portion on an outer peripheral surface. The bent joint pipe for piping according to claim 2, characterized in that the pipe comprises a sealing plug which is openably and closably sealed between the cylindrical body and the opening while being screwed into a screw portion of the cylindrical body.