JP2962141B2 - Turbid water drainage for 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 muddy water drainage device for a fire hydrant, which is connected to an existing fire hydrant to be used at the time of washing and draining inside a water distribution pipe so as to be able to collect foreign matters in muddy water to be drained.

[0002]

2. Description of the Related Art Conventionally, it has been generally difficult to collect foreign substances discharged outside a pipe when cleaning the inside of a water pipe by drainage from a fire hydrant. Therefore, when connecting a fire hose to an existing fire hydrant and collecting foreign matter in muddy water to be drained, as shown in FIG. Connect the fire hose 3 and attach a hand net 20 to the end of the fire hose 3.
And a simple method of collecting foreign matter from the muddy water to be drained was adopted.

[0003]

In the above-described conventional method of collecting foreign matter from the turbid water to be drained, the fire hose 3 dances due to the strong momentum of the drainage from the fire hose 3 and, as a result, the human fire is constantly performed. However, there is a troublesome problem that it is necessary to hold the net 20.

[0004] The present invention solves the above-mentioned problem, and when connecting to an existing fire hydrant to clean and drain the inside of a water distribution pipe,
It is an object of the present invention to provide a turbid water drainage device for a fire hydrant that can increase the amount of drainage and prevent the fire hose from dancing, and can easily collect foreign matter from the turbid water to be drained.

[0005]

In order to solve the above-mentioned problems, a turbid water drainage device for a fire hydrant according to the present invention connects an intermediate joint pipe having a flow meter and a water sampling port to a fire hose connected to the fire hydrant. A hose with a diameter larger than the fire hose can be connected to the intermediate joint pipe, and a strainer section consisting of a transparent pipe containing a strainer with a detachable cup at the end detachably attached to this hose can be removed. It is configured by connecting to.

[0006]

According to the above construction, when cleaning the inside of the water distribution pipe by drainage from the fire hydrant, the foreign substances discharged outside the pipe are collected in the foreign substance collecting cup of the strainer part. Therefore, the foreign substance collecting cup is removed from the strainer. Thus, foreign matter can be easily collected. In addition, since the drainage is performed through a hose having a larger diameter than the fire hose and further through the strainer of the strainer portion, the momentum is reduced to prevent the hose from dancing and increase the drainage amount. further,
The amount of drainage can be monitored and adjusted by an electromagnetic flow meter, and the water in the pipe can be sampled by the sampling port.
Water quality surveys can be done easily.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall configuration diagram of a turbid water drainage device for a fire hydrant according to one embodiment of the present invention, and FIG. 2 is an exploded perspective view showing a main part thereof. 1 and 2, reference numeral 1 denotes an existing fire hydrant, 2 denotes a standpipe raised from the hydrant 1, and 3 denotes a fire hose connected to the standpipe 2 to absorb the step, which is used for drainage of conventional turbid water. It is the same as what is done. Reference numeral 4 denotes an intermediate joint pipe used to connect the fire hose 3 and a large-diameter vinyl hose 5 for reducing water pressure, and is provided with an electromagnetic flow meter 6 and a water sampling port 7. Further, two reinforcing plates 8 for stably maintaining the posture of the intermediate joint pipe 4 and protecting the electromagnetic flow meter 6 are connected to each other at front and rear positions of the intermediate joint pipe 4 sandwiching the electromagnetic flow meter 6. Attached with a structure. The intermediate joint pipe 4 and the vinyl hose 5 are connected by a different diameter pipe connection coupling 9. Reference numeral 10 denotes a strainer section to which the vinyl hose 5 is connected, which drains muddy water from the vinyl hose 5 and collects foreign matter in the muddy water.

[0008] As shown in FIG.
A cylindrical transparent tube 11 for confirming the turbidity of turbid water, and a tapered strainer 12 removably housed therein.
And a transparent cup 14 for collecting foreign matter detachably attached to the small-diameter opening side of the strainer 12, and the intermediate joint pipe 4 of the vinyl hose 5 is provided on the large-diameter opening side of the strainer 12.
A flange 15 is provided which can be clamped between an end surface of the socket 14 provided at an end opposite to the end of the transparent tube 11 and an end surface of the transparent tube 11 on the socket 14 side.
A stopper shaft 16 is provided so as to protrude toward the socket 14 side of the vinyl hose 5 along the wall surface, and a stopper ring 18 which can be fitted to a step 17 at the back of the socket 14 of the vinyl hose 5 at the tip of the stopper shaft 16. Is provided. This stopper ring 18 is a split ring 1
8a and 18b.
Reference numeral 18b denotes a structure that can be separated from each other, or a structure in which one ends of the split rings 18a and 18b are pivotally supported and the other end is openable. The vinyl hose 5 of the strainer section 10 is attached by holding the strainer 12 to which the transparent cup 13 for collecting foreign matters is accommodated in the transparent tube 11, and by attaching the flange 15 of the strainer 12 to the end face of the socket 14 of the vinyl hose 5 and the transparent tube. 2 and is fixed to the end surface of the stepped portion 17 on the back of the socket 14 at both ends of one of the split rings 18a and 18b located on the upper surface of the step 17 as shown in FIG. Then, the two ends of the other ring 18b wound around the lower surface of the step portion 17 are connected by appropriate connecting claws or the like.

The turbid water drainage device for a fire hydrant having the above structure operates as follows. When the inside of the water distribution pipe is cleaned by drainage from the fire hydrant 1, foreign substances discharged outside the pipe are removed from the strainer unit 1.
0 is collected in the transparent cup 13 for collecting foreign matter. At this time, the drainage passes through the vinyl hose 5 having a larger diameter than the fire hose 3, so that the momentum is weakened and the hose can be prevented from dancing, and the drainage can be increased. Since the drainage is performed through the strainer 12, there is almost no decrease in the amount of drainage due to the blockage of the strainer, and there is almost no increase in the pressure in the apparatus. The amount of drainage is measured by the electromagnetic flow meter 6, and a considerable amount of water can be sampled in a short time by the water sampling port 7 for water quality inspection such as residual chlorine. The turbidity of the discharged turbid water can be confirmed by seeing through the transparent tube 11 of the strainer unit 10. In addition, the collection of foreign matter is done by fire hydrant 1
This can be easily achieved by simply stopping drainage from the container and removing the transparent cup 13 for collecting foreign matter.

FIG. 3 is an exploded perspective view showing a main part of a turbid water drainage device for a fire hydrant according to another embodiment of the present invention. 3 differs from FIG. 1 in that the transparent tube 19 of the strainer section 10 connected to the vinyl hose 5 is not cylindrical but has a truncated conical shape at the tip on the drain side, making the structure difficult to roll. That is the point.

As described above, according to the present embodiment, since it can be structurally divided into a fire hose, an electromagnetic flow meter and a water sampling port, a vinyl hose, and a strainer portion, it is easy to carry. The strainer part consists of a strainer, a transparent cup for collecting foreign matter, and a transparent tube.These can be easily attached to the vinyl hose socket, and foreign matter can be easily collected by removing the transparent cup for collecting foreign matter at the end of the strainer. it can. Furthermore, by using a plate made of a hard salt as a reinforcing plate, the structure can be made lightweight. In addition, advantages such as almost no decrease in drainage volume due to strainer blockage, little increase in pressure inside the device due to strainer blockage, and the ability to collect a considerable amount of water in a short time are possible. Can also be confirmed.

[0012]

As described above, according to the present invention, a hose having a larger diameter than a normal fire hose is connected to a fire hose connected to a fire hydrant, and the hose is prevented from dancing by using a strainer. Also, the drainage can be earned enough. In addition, by using a transparent tube for the strainer part, it is possible to check the turbidity of the turbid water drained.Furthermore, by attaching a cup to the end of the strainer, most foreign substances can be collected just by attaching and detaching the cup. Becomes possible. In addition, by attaching an electromagnetic flow meter, the amount of drainage can be monitored and adjusted, and by attaching a water sampling port, water in the distribution pipe can be collected, and water quality inspection can be easily performed.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a turbid water drainage device for a fire hydrant according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a main part of the turbid water drainage device for a fire hydrant according to one embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a main part of a turbid water drainage device for a fire hydrant according to another embodiment of the present invention.

FIG. 4 is a diagram illustrating a conventional turbid water drainage method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire hydrant 3 Fire hose 4 Intermediate joint pipe 5 Vinyl hose 6 Electromagnetic flowmeter 7 Sampling port 10 Strainer part 11 Transparent pipe 12 Strainer 13 Transparent cup for collecting foreign substances 14 Socket 15 Flange 16 Stopper shaft 17 Step 18 Stopper ring 19 Transparent pipe

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yutaka Isu 2-26, Ohama-cho, Amagasaki City, Hyogo Prefecture Inside Kubota Mukogawa Works Co., Ltd. (56) Reference Literature 4-110299 (JP, U) (58) Surveyed field (Int.Cl. ⁶ , DB name) E03B 9/14 E03B 7/08

Claims (1)

(57) [Claims] 1. A fire hose connected to a fire hydrant, an intermediate joint pipe having a flow meter and a water sampling port, a hose having a diameter larger than the fire hose, a strainer, and a foreign matter detachably attached to an end of the strainer. A turbid water drainage device for a fire hydrant, in which a sampling cup and a strainer section made of a transparent tube accommodating them are sequentially connected in this order.