JP2000193113A - Cutoff valve installation structure in water tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent problems on a mounting position of a cutoff valve caused by an earthquake and the like by mounting a cutoff valve fixing part on a side surface or a bottom surface of a water tank and mounting a feed water outlet port from the cutoff valve on the same plane as a mounting surface of the cutoff valve fixing part through an elbow tube. SOLUTION: In an assembled water tank comprising a side surface 1 and a bottom surface 2 respectively formed by the panel unit bodies, an emergency cutoff valve 3 is installed on the bottom surface with the piping connection that a feed water outlet port 5 of the emergency cutoff valve 3 is mounted on the bottom surface 2 through an elbow tube 6, and the water is fed to the outside of the water tank through a short pipe 11 and a steel pipe. A cutoff valve fixing part 4 is mounted on the bottom surface 2 with a bolt and a nut. By mounting the fixing part 4 of the cutoff valve 3 and the feed water outlet port 5 on the same plane, the vibration caused by an earthquake can be totally received as the vibration same as the vibration of the mounting surface in the earthquake, whereby the problems such as the damage of the fixing part 4 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tank for supplying drinking water and securing emergency water, and installing an emergency shut-off valve for preventing outflow of stored water in these water supply facilities due to breakage of a water supply pipe during an earthquake. It is about structure.

[0002]

2. Description of the Related Art A water tank for supplying drinking water and securing emergency water is of an assembled type or integrated type with a panel unit, and an emergency shut-off valve is installed mainly to prevent the outflow of stored water during an earthquake. However, in order to save space, the shut-off valve is often installed inside the water tank. In this case, in order to support the shut-off valve, the fixing portion of the shut-off valve is generally fixed to the bottom of the water tank, and the water supply outlet from the shut-off valve is generally fixed to the side surface of the water tank.

FIG. 2 is a schematic view showing a method of supporting such a shut-off valve in an assembled water tank. Reference numeral 21 denotes a side of the water tank, 22 denotes a bottom of the water tank, and a fixing portion 24 of the shut-off valve 23 includes a bottom 22.
, And a water supply outlet 25 of the shutoff valve 23 is fixed to the side portion 21. When a seismic sensor (not shown) detects an earthquake, the shut-off valve 23 controls the control unit 26.
To calculate the difference from the initial value previously input to the control unit 26, and when the difference exceeds the initial value, the difference is transmitted to the shutoff valve 23 to shut off the water supply outlet 5.

However, in the event of an earthquake, if the side 21 of the water tank and the bottom 22 have the same swing, the side 21
Also, the shutoff valve 23 fixed across the bottom portion 22 swings in the same manner, so that there is not much problem. However, if the respective swings are different, a major problem occurs. The fixed portion 24 and the water supply outlet 25 swing separately. That is, a large external force is applied in different directions to the attachment portion between the fixed portion 24 and the bottom portion 22 and the attachment portion between the water supply outlet 25 and the side portion 21 in the shutoff valve 23.

[0005] For this reason, the bolt used for the mounting portion may break or come off, and in some cases, the water tank may be damaged. Even if the shut-off valve 23 functions normally to shut off the water supply to the outside of the water tank. The situation is such that the stored water flows out from the damaged portion. Further, when the shut-off valve 23 is large, the two mounting parts are in different installation environments due to a difference in the shape of the mounting surface, a difference in the amount of bending of the mounting surface due to hydrostatic pressure, and the like. There is a concern that the stored water may leak from around the outlet 25.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned prior art, and has an installation structure of a shut-off valve which does not cause a problem in a mounting portion of the shut-off valve even when an earthquake or the like occurs. Is provided.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention is a structure in which an emergency shutoff valve is installed inside a water tank, wherein a fixed portion of the shutoff valve is mounted on the side or bottom surface of the water tank, and a water supply outlet from the shutoff valve is provided. Is mounted with an elbow pipe on the same surface as the mounting surface of the shut-off valve fixing portion, wherein the shut-off valve is installed in a water tank.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention is characterized in that a water supply outlet of a shutoff valve to a water tank and a fixing part are provided on the same surface. The valve, the elbow pipe, and the water tank are installed in such a way that they can move together in the event of an earthquake. In addition, the fact that the water supply outlet and the shut-off valve fixing portion are mounted on the same surface has the same mounting surface shape, the same amount of deflection displacement due to water pressure, and complete integration is formed, and the stored water from the mounting portion is formed. There is no fear of water leakage.

In particular, when the water tank is an assembling type water tank assembled by using a panel unit, it becomes more effective if the water supply outlet and the shutoff valve fixing portion are mounted on the same panel.

[0010]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples. FIG. 1 is a conceptual diagram showing an embodiment of the present invention. In the drawing, reference numeral 1 denotes a side surface of the assembled water tank, which is constituted by a panel unit. Reference numeral 2 denotes a bottom surface, which is also constituted by a panel unit. Reference numeral 3 denotes an emergency shut-off valve, and its fixing part 4 is attached to the bottom face 2 with bolts and nuts in this example, and a water supply outlet 5 is also attached to the bottom face 2 via an elbow pipe 6. In the figure, reference numerals 7 and 8 denote bolts and nuts for mounting. It goes without saying that the bottom surface 2 to which these are attached is a single panel unit and preferably does not straddle two or more panel units. In the figure,
Reference numeral 11 denotes a short pipe for supplying water from the water supply outlet 5 to the outside of the water tank, and a steel pipe (not shown) is further connected to the short pipe for water distribution.

The emergency shut-off valve mounting structure of the present invention has the above-mentioned structure. Even when an earthquake occurs, the fixing part 4 of the shut-off valve 3 and the water supply outlet 5 are mounted on the same surface. In addition, the shaking caused by the earthquake as a whole is the same as the shaking of the mounting surface, and the occurrence of troubles in the fixed portion due to the shaking is extremely reduced.

[0012]

According to the present invention, the emergency shut-off valve installed in the water tank is completely integrated with the water tank, and the water tank is damaged even by an earthquake or movement by hydrostatic pressure. It has a great feature that there is no fear of water leakage.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a conventional installation structure.

[Explanation of symbols]

 1 ‥ Side of assembly tank, 2 ‥ Bottom of assembly tank, 3 ‥ Emergency shut-off valve, 4 ‥ Fixed part of emergency shut-off valve, 5 ‥ Emergency cut-off valve water supply outlet, 6 ‥ Elbow pipe, 7 ‥ Bolt, 8 ‥ nut.

Claims (1)

[Claims] 1. A structure in which an emergency shut-off valve is installed inside a water tank, wherein a shut-off valve fixing portion is mounted on a side surface or a bottom surface of the water tank, and a water supply outlet from the shut-off valve is connected to a mounting surface of the shut-off valve fixing portion. A shut-off valve installation structure in an aquarium, which is mounted on the same surface with an elbow pipe.