JPH0340264B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a valve having a water inlet.

2. Description of the Related Art Conventionally, pipes such as water pipes are generally installed through valves (gate valves) A as shown in FIGS. 1 and 2. This valve A includes a valve box 1 having pipe connection flanges 1b on both sides of a water passage 1a, and a valve body 2 provided in the valve box 1 to shut off the water passage 1a.

By the way, when replacing a part of the piping connected through the valve A with a new pipe as shown by the reference numeral 3 in FIG. 3 and cleaning the new pipe 3,
The fire hydrant (or air valve, mud spouting pipe, etc.) 4 formed in the new pipe was used as a drain pipe or exhaust pipe, and valve A was closed to discharge mud and dust inside the new pipe 3 using water or air current. .

However, the fire hydrant 4 is not attached to the new pipe. Therefore, conventionally, in this case, a new drain pipe 5 was installed on the new pipe 3' as shown in Fig. 4, or a fire hydrant 5 was installed among other pipes connected to the new pipe 3'' as shown in Fig. 5. It was necessary to extend the cleaning section to the pipe 6 having the pipe 3'' and wash the new pipe 3'' and the pipe 6 together, which often took a long time to clean. In addition, as shown in Figure 6, when cleaning a new pipe 3 with a fire hydrant 4'' attached to the center, it is necessary to introduce water or the like from both ends of the new pipe 3 and drain water from the fire hydrant 4''. , cleaning work was complicated. Note that forming a drainage pipe for cleaning in a new pipe would increase the number of irregularly shaped pipes that differ in shape from other pipes, which is not preferable from the perspective of piping construction. Furthermore, when a drain pipe 5, etc. is attached to the new pipe 3, it becomes necessary to newly provide a valve chamber 8 for the drain pipe 5 in addition to the valve chamber 7 for operating the valve A, as shown in FIG. There is a problem that the equipment becomes complicated.

The present invention has been made in view of the above circumstances, and includes a valve box having pipe connection flanges on both sides of a water passage, and a valve body that blocks the water passage. The water passageway is provided in at least one of the upper part of the valve box between the inside of the pipe connection flange and the outer body of the valve box, or the upper part of the valve box between the inside of the other pipe connection flange and the outer body of the valve box. By integrally forming a water pipe that opens through a water port, and attaching a fixing means such as a flange to the tip of the water pipe, the pipe can be easily cleaned, and The purpose of the present invention is to provide a valve with a water inlet that eliminates irregularly shaped pipes, prevents complication of equipment around the piping, and facilitates installation of fire hydrants, air valves, etc.

The present invention will be described below based on embodiments shown in the drawings.

Figures 7 to 13 show one embodiment of the present invention, and in the figures, B indicates a valve, and like the conventional valve A, valve B is a pipe body such as a water pipe buried underground. 10... are connected.
Note that 11 in FIG. 7 indicates a valve chamber that surrounds the valve B and communicates with the ground.

The valve B has a water passage 12a and a valve collection chamber 12b.
etc. are formed inside, a valve cover 13 attached to the valve case 12, a valve rod 14 provided through the valve cover 13, and a valve attached to the lower end of the valve rod 14. The main components are a body 15 and a water pipe 16, which will be described later, which is integrally formed with the valve box 12.

The center portion of the water passage 12a is formed into a partition chamber 12d having a larger diameter than the water passage 12a, and a valve collection chamber 12b is formed upward through the partition chamber 12d. And the partition chamber 1 of the water passage 12a
A ring-shaped valve box valve seat 12 is provided at each opening on the 2d side.
e is fitted, and a connecting flange 12f is formed at the upper end of the valve box at the upper end of the valve receiving chamber 12b. Also, a connecting flange 1 is attached to the lower end of the valve cover 13.
3a is formed, and the valve lid 13 is attached to this connecting flange 1.
3a is bolted to the connecting flange 12f of the valve box 12 to be joined to the valve box 12, and a valve housing chamber 13b is formed inside the valve cover 13, and this valve housing chamber 13b is used as a valve housing for the valve housing 12. It communicates with the chamber 12b. Furthermore, a valve rod 14 provided through the valve cover 13 is movable up and down along the valve cover 13. At the lower end of this valve rod 14 is a valve body 1.
5 is attached to both sides of the valve body 15, and a valve body valve seat 15a is attached to both sides of the valve body 15.
Guide protrusions 15b are formed at the center of the side circumferential surfaces of the valve body 15, and when the valve rod 14 moves up and down, the guide protrusions 15b move into the guide grooves 12g formed on the inner wall of the valve collecting chamber 12b. It is arranged to move up and down within the valve collection chambers 12b, 13b while following the direction. Then, the valve body 15 descends and the valve body valve seat 15a
When the valve body is brought into close contact with the valve seat 12e, the water passage 12
It has become possible to block out On the other hand, the valve box 1
Pipe connection flanges 12h are formed on both sides of the water passage 12 facing outward.

The upper part of the valve box 12 between the inside of the flange 12h of the valve box 12 and the outer body (outer circumferential wall of the valve box 12) 12i is located above the water passage 12 and is connected to the valve box valve. A water outlet 12 is provided near the seat 15a.
A water pipe 16 is provided in a protruding manner and is opened by a hole 1. This water pipe 16 has a lower part 16a that is connected to the water passage 1.
2a and the flange 12h, facing upward, and the central portion 16b of the valve collection chamber 12
The outer shell 12 is integrally connected to the outer shell 12i on the outside of b.
It extends obliquely upward away from i, and its upper part 16c is formed to face upward, and this upper part 16c
A flange (fastening means) 16d is formed at the periphery of the opening. A fire hydrant 17 is attached to this water pipe 16 via a flange 16d.

To clean the pipe body 10 connected through the valve B configured as described above, the valve rods 14 of the valves B and B on both sides of the pipe body 10 are operated to clean the valve body 10.
5, each water passage 12a is closed, fluid is introduced through the water passage pipe 16 of valve B on one side of the pipe body 10, and the pipe body 1 is closed.
It is preferable to discharge the fluid from the water pipe 16 of the valve B on the other side of the valve B.

When the pipe body 10 is connected using the valve B in this way, the valve B and the fire hydrant 17 can be put together in one place, so in the conventional example shown in FIG.
The number of valve chambers that were previously required can be reduced to one.
Moreover, since all the tube bodies 10 can be of the same shape, irregularly shaped tubes are not required.

In addition, since two water pipes 16 are formed in the valve B in the valve chamber 11, in addition to the fire hydrant 17, a stop valve, an air valve, an auxiliary valve, a fire hydrant,
It is also possible to attach one pressure gauge or the like, or optionally two of these. In addition, water pipe 1
6 may be closed with a blind plate or a blind plate with a plug may be attached. In addition, if devices such as fire hydrants and pressure gauges are attached to the water pipes 16, 16, various valve operations such as valve operation, pipe washing operation, use during fire extinguishing activities, and pressure measurement operation can be performed in one valve chamber 11. This also makes it possible to centrally manage valves.

In the above embodiment, the water pipes 16 are provided on both sides of the valve box 12, but it is of course possible to provide the water pipes 16 on only one side. Furthermore,
The fastening means provided at the tip of the water pipe 16 is not limited to the flange 16d of the above embodiment, but may be a threaded portion or the like.

By the way, when a fire hydrant, an auxiliary valve, etc. are attached to the water pipe 16, it goes without saying that the water pipe 16 can be freely opened and closed separately from the opening and closing of the water passage 12a by the valve body 15.

Further, in the above embodiment, the present invention is applied to the valve B having the partition chamber 12d having a larger diameter than the water passage 12a, but the invention can also be applied to a valve in which the diameter of the partition is the same as the diameter of the water passage.

As explained above, the present invention provides a valve including a valve box having pipe connection flanges on both sides of a passageway, and a valve body for blocking the passageway.
At least the upper part of the valve box between the inside of the one pipe connection flange and the outer body of the valve box, or the upper part of the valve box between the inside of the other pipe connection flange and the outer body of the valve box. On the other hand, a water flow pipe that opens into the water flow channel through a water flow port is integrally formed, and a fastening means such as a flange is attached to the tip of the water flow pipe. When the pipes are connected, the water pipe can be used as a discharge path for fluid for cleaning the pipes, so the pipes can be easily cleaned. Additionally, in the past, it was necessary to attach a special drain pipe or the like to the pipe body as a drainage path for cleaning fluid, or to use a fire hydrant, etc. as a drainage path for cleaning fluid, making cleaning often time-consuming. By using this valve, the above-mentioned effort can be omitted. Further, the water pipe is provided with a fastening means, and devices such as a fire hydrant, an air valve, or a pressure gauge can be connected to the water pipe, so that various functions of the valve can be centrally controlled around the valve of the present invention. Furthermore, since there is no need to connect the various devices mentioned above to the pipe body, it is possible to omit the valve chamber for operating the devices, which was conventionally required for each device. Furthermore, since all tube bodies can be of the same shape, there is no need for irregularly shaped tubes.

[Brief explanation of the drawing]

Figure 1 is a partially sectional front view of an example of a conventional valve, Figure 2 is a partially sectional side view of the valve shown in Figure 1, and Figure 3 is a partial sectional view of the valve shown in Figure 1. Fig. 4 is a block diagram showing a second example of the pipe connected through the pipe and buried in the soil, Fig. 5 is a block diagram showing the second example of the pipe, and Fig. 5 is the third example of the pipe connected through FIG. 6 is a configuration diagram showing a fourth example of the same tube body, FIGS. 7 to 13 show an embodiment of the present invention, and FIG. 7 is a diagram of this embodiment. A configuration diagram showing how the valve is used; Figure 8 is a front view with a portion of the valve in cross section; Figure 9 is a side view with a portion of the valve in cross section; Figure 10 is a plan view of the valve. , 11th
The figure is a plan view of the valve box of the same valve, FIG. 12 is a front view with a part of the valve box in section, and FIG. 13 is a plan view of the valve box. B... Valve, 12... Valve box, 12a... Water passage, 12e... Valve box valve seat, 12h... Pipe connection flange, 12i... Outer body, 12l... Water inlet, 15
... Valve body, 15a... Valve body valve seat, 16... Water pipe, 16d... Flange.

Claims (1)

[Claims] 1. In a valve consisting of a valve box having pipe connection flanges on both sides of a passageway, and a valve body etc. that shuts off the passageway, between the inside of one of the pipe connection flanges and the outer body of the valve box. The top of the valve box, or
At least one of the upper parts of the valve box between the inside of the other pipe connection flange and the outer body of the valve box is integrally formed with a water pipe that opens into the water passage through a water port, and A valve with a water inlet, characterized in that a fixing means such as a flange is attached to the tip of the water pipe.