JPH09296484A - Emergency drinking water tank - Google Patents

Abstract

(57) [Abstract] [Problem] To provide a water tank that always stores clean drinking water and is not disabled even in the event of a major disaster such as an earthquake. SOLUTION: An inflow port 4, an outflow port 5, and an upper opening 6 are provided in a tank main body 3 arranged in the middle of an underground water supply pipe 1 of a water supply or pumping pump. The inflow port 4 and the outflow port 5 are connected to the water source side and the building side of the water supply pipe 1 via water stop valves 14 and 15, respectively. The upper opening 6 is the tank body 3
And the upper end reaches the ground, and the lid 9 is attached to the upper end. The tank main body 3 is housed in a protective housing 17, and glass wool or the like is filled between the protective housing 17 and the tank main body 3. The lid 9 is a screw lid and has two or more protrusions 12 on the upper surface. In an emergency,
The tip of a log is inserted into the concave portion between the protrusions 12 of the lid, and the lid 9 is opened. The tank body 3 is preferably made of FRP, and the protective housing 17 is preferably made of concrete block.

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 storing drinking water in case of an emergency such as an earthquake, and more particularly to a water tank having a structure buried underground.

[0002]

2. Description of the Related Art When a fixed amount of tap water is constantly stored by being placed in the water supply pipe of water supply, and when the supply of water is stopped due to water supply limitation due to drought, etc., it is stored in the water supply pipe. A water tank which can use the stored water for drinking and cooking is disclosed in, for example, JP-A-55-26381, JP-A-56-46674, and JP-A-56-1.
Various structures have been proposed in Japanese Patent No. 6316, Japanese Utility Model Laid-Open No. 63-9364, and the like. These water tanks are of relatively small capacity installed indoors, and the water flowing out of the faucet always flows through this water tank, so that new water is constantly stored in the water tank. ing.

On the other hand, as water tanks installed under the ground surface, there are underground fire-fighting water tanks and water tanks installed in the basement of a high-rise apartment building. Of these, the fire-fighting water tank is made with the idea that it is sufficient to store a large amount of water for a long period of time without leaking or evaporating, as the quality of the water does not matter so much. It is made, and the stored water is not always replaced with new water. In addition, the water tank in the basement of the apartment house is designed to store tap water in this tank first and then pump it up to the water tank on the roof to supply water to the houses on each floor. It is provided to supply water.

[0004]

When the supply of clean water is stopped due to an earthquake or the like, there arises a problem of how to secure drinking water while the water supply system is restored. Conventionally, water was mainly supplied by water trucks, but when the disaster area is large or the road is blocked due to collapse of buildings, it is impossible to quickly supply the required amount of drinking water.

In such a case, it is considered that the water tank installed in the middle of the tap water supply pipe as described above is effective, but when the building collapses due to an earthquake, the water tank becomes an underlay of the building. Therefore, even if water is stored in the water storage tank, it cannot be used. In addition, when a fire occurs, the water in the water tank in the building or in the basement of the building evaporates, so it cannot be used again.

The present invention has been made in order to solve the problem of such a conventional water storage tank, and it is possible to reliably store clean drinking water at all times, and even when a major disaster occurs. It is an object to provide a water tank for drinking water for emergencies that never becomes unusable.

[0007]

The drinking water tank of the present invention comprises:
It is placed in the middle of the underground water supply pipe 1 that is drawn into each house from the mains of the water supply and pumping pumps, and is generally installed in the open space that is not under the building on the site of each building. The tank body 3 includes an inlet 4, an outlet 5, and an upper opening 6. The inlet 4 and the outlet 5 are the water shutoff valve 1
4 and 15 are connected to the water source side and the building side of the water supply pipe 1, respectively. The upper opening 6 stands up from the tank main body 3 and has an upper end reaching the ground, and a lid 9 is attached to the upper end. The lid 9 is not opened in the normal state,
The packing 11 and the like are provided so that the opening 6 is completely sealed when closed.

The tank main body 3 is housed in a protective housing 17, and a space between the protective housing 17 and the tank main body 3 is filled with a non-combustible material 23 having a buffering property, such as glass wool. The upper surface of the protective housing 17 is located on the ground surface, and the opening 6 of the tank body penetrates the upper surface plate 24 of the protective housing.

The lid 9 of the opening is a screw lid, and two or more protrusions 12 are provided on the upper surface thereof. In an emergency, insert the tip of the log 13 into the recess between the protrusions 12 and rotate the lid 9 by leverage to open the opening 6.
open. The tank main body 3 preferably has an FRP structure, and the protective housing 17 is made of concrete blocks each of which is divided into a plurality of pieces in the vertical direction, and has a structure that can be stacked vertically and installed on site.

[0010]

The drinking water tank 2 of the present invention is provided at a position not under the building on the way of the water supply pipe to the building, so that the clean water used in the building always flows through the drinking water tank. New water is always stored in the water tank 2, and even when a building collapses or a fire occurs due to an earthquake, the drinking water tank becomes the underlay of the building and cannot be used, or the heat of the fire evaporates the water. The situation can be minimized.

When the water supply stops in an emergency,
The water shutoff valves 14 and 15 connected to the drinking water tank are closed, the lid 9 of the opening is opened, and the water in the tank body 3 is pumped up and used. The lid 9 is normally tightly closed so that the opening 6 is completely sealed, but the tip of a log or the like is fitted between the protrusions 12 of the lid, and the lid 9 is utilized by utilizing the lever action.
It can be opened by rotating. That is,
The lid 9 can be opened without using a special tool, and in case of emergency, it can be opened by using existing logs, square pieces, iron pipes, or the like.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention. A drinking water tank 2 of the present invention is installed in the middle of a water supply underground pipe 1 on the premises connected to a main of a public water supply or a pump with a domestic pressure water tank. The tank body 3 of the drinking water tank has a cylindrical shape made of FRP, and is provided with an inflow port 4, an outflow port 5 and an opening 6 for pumping water in the tank in an emergency in the upper part thereof.

The opening 6 is provided with a rising cylinder 7 rising upward from the tank body, and a male screw is provided on the outer periphery of the upper end of the rising cylinder. A flange 8 is provided in the middle of the rising cylinder 7 by being bonded to the rising cylinder 7 with an adhesive at the time of construction. A lid 9 is screwed onto the male screw of the rising cylinder, and a packing 11 is provided on the lid to seal the opening 6. Four protrusions 12 are formed on the upper surface of the lid 9, and as shown in FIG. 2, the tip of a log 13 or the like is inserted into a recess between the protrusions 12 in an emergency and the logs are pushed and moved. The lid 9 is rotated by the lever action to open the opening 6.

To the inflow port 4 of the tank body, the water supply main pipe or the pump side of the underground water supply pipe 1 is connected via a check valve 28 and a water stop valve 14. The building side of the underground water supply pipe is connected to the outflow pipe 5 via a water stop valve 15. The building side of the underground water supply pipe stands on the ground just outside the outer wall of the building, and further branches into pipes for bathrooms, kitchens, washrooms, etc., and a faucet 16 is provided at the tip of each pipe.

The tank body 3 is housed in a protective casing 17 made of concrete block. The protective housing 17 has a lower part 1
8, a frame made of a concrete block divided into three parts into a middle frame 19 and an upper part 21, and the joint part of each block is
A meshing portion 22 is provided. A non-combustible cushioning material 23 such as glass wool is provided between the protective housing 17 and the tank body 3.
Is filled. The rising cylinder 7 penetrates the upper surface plate 24 of the protective housing, and the periphery of the flange described above and the upper surface plate 24 of the protective housing are sealed with caulking material 25.

In order to install the drinking water tank 2 having the above structure, the ground in the middle of the water supply underground pipe 1 of the water supply is dug, the lower block 18 and the middle frame block 19 of the protective casing are placed, and glass wool is appropriately packed. Meanwhile, the tank body 3 is installed in the protective housing. The through hole 26 provided in the middle frame block 19,
By piping through 27, the inflow port 4 and the outflow port 5 are connected to the water supply underground pipe 1 through the water shutoff valves 14 and 15. Between the inlet 4 and the water shutoff valve 14 on that side,
The check valve 28 is provided to prevent the water in the tank main body from flowing back due to the internal pressure of the tank main body 3 and the drop of the pipes in the building when the water pressure in the underground water supply pipe disappears.

The space between the pipes passing through the through holes 26, 27 of the middle frame block is sealed with a caulking material 29 after the pipes. Next, the upper block 21 provided with an opening through which the rising cylinder 7 can pass is covered, and then the flange 8 is inserted through the rising cylinder 7 and fixed to the rising cylinder 7 with an adhesive, and the outer circumference of the flange 8 and the upper block. The upper surface of 21 is sealed with caulking material 25. Then, by packing the packing 11 on the upper end of the rising cylinder 7 and screwing the lid 9 firmly,
The opening 6 of the tank body is closed.

[Brief description of drawings]

FIG. 1 is a sectional side view showing an embodiment of the present invention.

FIG. 2 is a top view of the opening lid of FIG.

[Explanation of symbols]

 1 Underground piping for water supply 3 Tank body 4 Inlet 5 Outlet 6 Opening 7 Lid 11 Packing 12 Protrusion 14 Water stop valve 15 Water stop valve 17 Protective housing 23 Non-combustible cushioning material

Claims (3)

[Claims] 1. Inlet (4), outlet (5) and upper opening (6)
With a tank body (3) with and a water shutoff valve at the inlet (4)
It is connected to the water source side of the underground water supply pipe (1) via (14), and the outlet (5) is connected to the building side of the underground water supply pipe (1) via the stop valve (15), and the upper opening ( 6) is equipped with a lid (9) with a sealed structure at the upper end that rises from the tank body (3) and reaches the ground,
The tank body (3) is a protective enclosure (17) filled with non-combustible cushioning material (23).
An emergency drinking water tank installed in a part of the open space that is not housed under the building in the middle of the water supply underground pipe (1). 2. The emergency drinking water tank according to claim 1, wherein the lid (9) of the opening is a screw lid, and the upper surface thereof is provided with two or more protrusions (12). 3. The emergency drinking water tank according to claim 1 or 2, wherein the protective casing (17) is a casing having a stacked structure in which a plurality of vertically divided portions are made of concrete blocks.