JP2853514B2 - Exhaust equipment such as fire hydrants - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mud for discharging mud such as sediment accumulated in a connection between a pipeline for water supply and sewage, agricultural water supply and the like and a drain pipe such as a fire hydrant connected thereto. Related to the device.

[0002]

2. Description of the Related Art Conventionally, when a fire hydrant is connected to a pipeline for water and sewage, agricultural water, or the like, as shown in FIG. The fire hydrant 3 is attached to the drain port 2a by intervening, and water can be discharged from the fire hydrant 3 by opening the on-off valve 3a of the fire hydrant 3.

[0003]

In the above-mentioned conventional configuration,
It can only discharge water from the pipeline 1 through the fire hydrant 3, and has no function of removing mud such as earth and sand accumulated in the pipeline 1. Therefore, a strainer is disposed in the pipeline 1 to remove mud such as sediment accumulated in the strainer or to remove mud such as sediment accumulated before a valve interposed in the pipeline 1. However, in this method, with the water supply from the pipeline 1 temporarily stopped, the strainer is disassembled to remove mud such as sediment accumulated in the strainer, or the short pipe 2 is lifted using a chain block or the like. As a result, it is necessary to disassemble the pipeline 1 and clean the valve, and there is a drawback that it takes a lot of trouble and time for the sludge discharging operation.

The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a fire extinguisher or other mud discharging apparatus capable of easily removing mud such as earth and sand accumulated in a pipeline to which a fire hydrant or the like is connected. And

[0005]

In order to achieve the above object, the present invention is directed to a U-shaped pipe formed at the lower part of a short pipe concentrically interposed in a pipeline for water supply and sewerage, agricultural water supply and the like. At the same time, the lower part of the short pipe and the central part of the U-shaped pipe are communicated with each other, and a water discharge pipe with an on-off valve such as a fire hydrant is connected to one end opening of the U-shaped pipe. A drain pipe with an on-off valve is connected to the other end opening of the tubular pipe.

[0006]

According to the above construction, the mud such as earth and sand contained in the running water flowing through the pipeline accumulates in the central portion of the U-shaped pipe lower than the bottom of the short pipe interposed in the pipeline. By opening the on-off valve of the mud pipe and draining through the U-shaped pipe and the drain pipe, mud such as sediment accumulated in the center of the U-shaped pipe is also discharged out of the pipeline together with the drain. Can be.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a short pipe 5 is concentrically interposed in a pipeline 1 for water supply and sewage, agricultural water supply, and the like, and a central portion of a U-shaped pipe 6 is fitted to a lower portion of the short pipe 5. A fire hydrant (water discharge pipe) 7 is connected to one end opening 6a of the U-shaped pipe 6, and a sludge pipe 8 with an on-off valve 8a is connected to the other end opening 6b of the U-shaped pipe 6.

A communication port 9 is formed from the central portion of the U-shaped tube 6 to one end opening 6a for communicating the U-shaped tube 6 and the short tube 5 with each other. The mud a such as earth and sand contained in the U-shaped pipe 6 is accumulated in a central portion of the U-shaped pipe 6. In addition, a partition wall 10 that separates the U-shaped pipe 6 and the short pipe 5 is formed from the center of the U-shaped pipe 6 to the other end opening 6b.
a is released and the mud a such as sediment accumulated in the center of the U-shaped pipe 6 is discharged to the outside of the pipeline 1 together with the drainage. Like that.

Further, of the two on-off valves 7a, 8a, at least the on-off valve 8a on the mud pipe 8 side is formed by a full port valve whose internal flow path is completely opened when the ball valve or the like is fully opened. Sometimes, mud a such as earth and sand is prevented from clogging the on-off valve 8a.

In the above configuration, when performing a fire extinguishing activity, it is only necessary to open the on-off valve 7a of the fire hydrant 7. Thereby, the U-shaped pipe 6 and the fire hydrant 7
Can be drained through.

When performing a mud discharging operation, it is only necessary to open the on-off valve 8a of the mud discharging pipe 8. As a result, the water is drained from the pipeline 1 through the U-shaped pipe 6 and the drain pipe 8, so that the mud a
Can be discharged out of the pipeline 1 together with the drainage.

When the water supply is stopped by closing a valve interposed in the pipeline 1, pressurized water is pumped from the fire hydrant 7 side to the one end opening 6a of the U-shaped pipe 6 by a small pump. The mud a such as earth and sand accumulated in the central portion of the U-shaped pipe 6 can be discharged from the drain pipe 8 to the outside of the pipeline 1. Further, U is connected via one on-off valve 7a or 8a.
It is also possible to insert a flexible pipe up to the center of the U-shaped pipe 6 and to suck up mud a such as earth and sand accumulated in the center of the U-shaped pipe 6 through the flexible pipe by a water absorption pump.

In the above embodiment, the fire hydrant 7 is attached to the one end opening 6a of the U-shaped tube 6, but a pipe may be attached in place of the fire hydrant 7 to discharge water. Also,
Although both ends 6a and 6b of the U-shaped tube 6 are vertically upwards, the both ends 6a and 6b may be horizontal and horizontal.

[0014]

According to the present invention, mud such as sediment accumulated in the pipeline is discharged to the outside of the pipeline together with the drain by simply opening the on-off valve of the drain pipe and draining the water. In addition, unlike the related art, there is no need to stop water supply to the pipeline or disassemble the pipeline, and it is possible to quickly and easily perform the drainage operation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a mud discharging apparatus such as a fire hydrant according to an embodiment of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 4 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipeline 5 Short pipe 6 U-shaped pipe 6a One end opening of U-shaped pipe 6b Other end opening of U-shaped pipe 6 7 Fire hydrant (drain pipe) 7a On-off valve 8 Drainage pipe 8a On-off valve 9 Communication mouth

Claims (1)

(57) [Claims] 1. A central portion of a U-shaped tube is externally fitted to a lower portion of a short tube concentrically interposed in pipelines for water supply and sewerage, agricultural water supply, and the like, and a lower portion of the short tube and a U-shaped tube are connected. The central portion of the pipe is communicated with each other, a drain pipe with an open / close valve such as a fire hydrant is connected to one end opening of the U-shaped pipe, and a drainage pipe with an open / close valve is connected to the other end opening of the U-shaped pipe. A mud discharging device, such as a fire hydrant, which is connected.