Emergency drinking water storage device

Abstract

To provide a new emergency drinking water storage device capable of securing necessary emergency drinking water even if supply of tap water is stopped.SOLUTION: A conduit 10 for introducing city water from a water main pipe L to a building B and a water supply pipe 20 for supplying the introduced city water to the building B are provided, a water storage pipe 30 is connected between the water supply pipe 20 and the conduit 10, and a water intake means 40 is provided in the water storage pipe 30. Thus, even when the supply of the tap water from the water main pipe L is stopped by a disaster such as an earthquake, since a certain amount of tap water is stored in the water storage pipe 30, the tap water is taken in to be secured as emergency drinking water.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a water supply system for high-rise buildings such as buildings and apartment buildings, and in particular to an emergency drinking water storage device that can supply emergency drinking water required in the event of a disaster. [Background technology]

[0002] Traditionally, the water supply system for high-rise buildings such as office buildings and condominiums has been as follows: tap water supplied from an underground water main is first stored in a water tank installed near ground level, and then this water is supplied directly to each unit using a pump, or sent via a pumping pipe to a tank installed on the roof, and then from the rooftop tank it is supplied to each unit via a water supply pipe.

[0003] However, systems using such receiving tanks or rooftop water tanks require regular cleaning and maintenance to ensure sanitary conditions, and there are problems such as high costs for renovations due to aging and long periods of water outage until the renovations are completed. Furthermore, rooftop water tanks are at risk of being damaged or collapsing in an earthquake, and may not be able to fulfill their role as a water tank. For this reason, in recent years, as shown in Patent Documents 1 and 2 below, water supply systems that do not use receiving tanks or rooftop water tanks have become more common. These systems include direct-connected, pressurized water supply systems that utilize the water pressure of tap water supplied from the water mains to send it directly to each home, and direct-connected, boosted-pressure water supply systems that further boost the water pressure with a pump and supply it directly to each home. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-273185 [Patent Document 2] Japanese Patent Application Publication No. 9-296483 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, conventional water supply systems using water storage tanks or rooftop tanks have the advantage that even if the supply of tap water is cut off due to a disaster such as an earthquake or a pump failure, a certain amount of tap water remains in the tank or rooftop tank, which can be used as emergency drinking water for residents.However, as mentioned above, this advantage cannot be enjoyed with direct-connected, direct-pressure water supply systems or direct-connected, booster-pressure water supply systems, which do not have this feature.

[0006] Therefore, the present invention was devised to solve these problems, and its purpose is to provide a new emergency drinking water storage device that can secure the necessary emergency drinking water even if the supply of tap water is cut off. [Means for solving the problem]

[0007] In order to solve the above problem, the first invention is an emergency drinking water storage device comprising a water conduit that introduces tap water from a water main pipe into a building, and a water supply pipe that supplies the tap water introduced from the water conduit pipe to the building, a water storage pipe connected between the water supply pipe and the water conduit pipe, and a water intake means provided in the water storage pipe.

[0008] With this configuration, even if the supply of tap water from the main water pipe is stopped due to a disaster such as an earthquake, a certain amount of tap water remains in the storage pipe, and by taking in the tap water using the water intake means, it can be secured as emergency drinking water. Furthermore, since fresh tap water is constantly flowing from the water conveyance pipe in normal times, there is no stagnation in the storage pipe, so there are no hygiene problems.

[0009] The second invention is an emergency drinking water storage device according to the first invention, characterized in that the height of part or all of the water storage pipe in the direction of gravity is lower than the height of the connection part with the water conveyance pipe. With this configuration, even if the supply of tap water is stopped and the water pressure is lost, it is possible to reliably prevent a situation in which all the tap water in the storage pipe flows back into the water conveyance pipe and is lost.

[0010] The third invention is an emergency drinking water storage device according to the first invention, characterized in that a check valve is provided at the connection between the water conveyance pipe and the storage pipe or in the water conveyance pipe. With this configuration, the provision of a check valve makes it possible to prevent tap water in the storage pipe from flowing back into the water conveyance pipe even if the water pressure is lost, as in the second invention, even if the storage pipe is not installed low. Furthermore, even if water accumulated in a water supply pipe downstream of the storage pipe applies reverse water pressure to the storage pipe, the tap water in the storage pipe can be prevented from flowing back into the water conveyance pipe.

[0011] The fourth invention is the emergency drinking water storage device of the first invention, characterized in that the water storage pipe comprises a standpipe connected to the water conveyance pipe side and a horizontal pipe extending approximately horizontally from the standpipe and connected to the water supply pipe side. With this configuration, as with the second invention, not only can it be prevented that tap water in the horizontal pipe that constitutes part of the water storage pipe flows back to the water conveyance pipe side, but also, when water pressure is lost, the tap water in the horizontal pipe returns to the standpipe, so that tap water in the horizontal pipe can be easily taken from the standpipe side.

[0012] The fifth invention is an emergency drinking water storage device according to the fourth invention, characterized in that the tip of the horizontal pipe is piped at a position higher than the connection part with the standpipe to form a gradient, and the water intake means is provided on the standpipe side. With this configuration, tap water accumulated in the horizontal pipe by gravity returns to the standpipe due to the gradient, so that the tap water accumulated in the horizontal pipe can be efficiently taken up by the water intake means.

[0013] The sixth invention is an emergency drinking water storage device according to the fourth invention, characterized in that the tip of the horizontal pipe is piped at a position lower than the connection with the standpipe to form a gradient, and the water intake means is provided at the tip. With this configuration, tap water accumulated in the horizontal pipe by gravity is all collected at the tip of the horizontal pipe due to the gradient, so that the tap water accumulated in the horizontal pipe can be efficiently taken from the tip by the water intake means.

[0014] The seventh invention is the sixth invention, in which an emergency water supply chamber is provided at the tip of the horizontal pipe, and the water intake means is provided in the emergency water supply chamber. With this configuration, tap water accumulated in the horizontal pipe can be efficiently taken from the emergency water supply chamber.

[0015] The eighth invention is an emergency drinking water storage device according to any one of the first to seventh inventions, characterized in that the inner diameter of the water storage pipe is larger than the inner diameter of the water conveyance pipe or the water supply pipe. With this configuration, the capacity of the water storage pipe is increased, so a large amount of tap water can be stored without making the water storage pipe longer.

[0016] The ninth invention is the emergency drinking water storage device of the first invention, characterized in that the water storage pipe is installed in the basement or first floor ceiling piping space of the building. With this configuration, it is possible to effectively utilize existing space without securing new space for installing the water storage pipe.

[0017] The tenth invention is an emergency drinking water storage device according to any one of the first to seventh inventions, characterized in that the water supply pipes located in the private areas of each unit are laid out in a serpentine or detoured manner on the ceiling or under the floor of each unit, and the water supply pipes are further provided with the water intake means. With this configuration, the water supply pipes in the serpentine or detoured portions themselves function as water storage pipes, making it possible for each unit (each room) to use the tap water stored in the water supply pipes as drinking water in an emergency.

[0018] An eleventh invention is an emergency drinking water storage device according to any one of the first to seventh inventions, characterized in that the water intake means is lockable. With this configuration, only authorized administrators can operate the water intake means to draw tap water from the water storage pipe, thereby preventing tampering and theft. [Effects of the Invention]

[0019] According to the present invention, even if the supply of tap water from the main water pipe is stopped due to a disaster such as an earthquake, a certain amount of tap water remains in the storage pipe, and by taking in the tap water using the water intake means, it is possible to secure this tap water as emergency drinking water. Furthermore, since fresh tap water is always flowing from the water conveyance pipe in normal times, there is no stagnation in the storage pipe, and there is no problem with hygiene. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is an overall view showing an embodiment of an emergency drinking water storage device 100 according to the present invention. [Figure 2] 2 is a vertical cross-sectional view showing the positional relationship between the water conveyance pipe 10 and the water storage pipe 30. FIG. [Figure 3] 1 is an overall view showing another embodiment of the emergency drinking water storage device 100 according to the present invention. [Figure 4] FIG. 10 is an explanatory diagram showing the state of water intake using a manual pump 60. [Figure 5] 1 is an overall view showing another embodiment of the emergency drinking water storage device 100 according to the present invention. [Figure 6] 1 is an overall view showing another embodiment of the emergency drinking water storage device 100 according to the present invention. [Figure 7] 1 is an explanatory diagram showing an embodiment of a water supply pipe 20 that is piped to each house in an emergency drinking water storage device 100 according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 shows one embodiment of an emergency drinking water storage device 100 according to the present invention. As shown in the figure, the emergency drinking water storage device 100 is mainly composed of a water conduit 10 that introduces tap water from a water main L, a water supply pipe 20 that supplies the tap water introduced from the water conduit 10 to a building B, and a water storage pipe 30 connected between the water supply pipe 20 and the water conduit 10.

[0022] The water conduit 10 branches off from the underground main water pipe L to carry tap water. It is made of a relatively strong material, such as a metal pipe (iron, copper, or stainless steel) or ductile cast iron pipe, or a resin such as a polyethylene pipe or impact-resistant PVC pipe. There are no particular restrictions on its inner diameter, but those with an inner diameter of around 40 to 100 mm are often used. A water meter M that measures the amount of tap water used and a water pump P that boosts the pressure of the introduced tap water are installed in this water conduit 10. The arrows in the figure indicate the direction of tap water flow.

[0023] On the other hand, like the water conduit 10, the water supply pipe 20 is also made of metal or resin, and its inner diameter is often the same as that of the water conduit 10, for example, about 40 to 100 mm. In the case of a high-rise building B as shown in the figure, this water supply pipe 20 is installed so as to rise vertically inside the building B along the wall, and tap water pressurized by a water pump P is branched off from here and supplied to each floor.

[0024] One end of the water storage pipe 30 is connected to the water supply pipe 20, and the other end is connected to the water conveyance pipe 10, so that tap water supplied from the water conveyance pipe 10 passes through and flows into the water supply pipe 20. The water storage pipe 30 is made of substantially the same material as the water supply pipe 20 and the water conveyance pipe 10, and its inner diameter is at least twice as large as the water supply pipe 20 and the water conveyance pipe 10, for example, 150 to 200 mm, although it is not particularly limited. The length is also not particularly limited, but is, for example, about 20 to 40 m, and is laid horizontally in a circular or serpentine shape in an open space such as the first floor or basement, as shown in the figure.

[0025] Steps D1 and D2 are formed near the joints at both ends of the water storage pipe 30, so that the piping position of the water storage pipe 30, i.e., its height in the direction of gravity, is lower than the positions of the water conveyance pipe 10 and the water supply pipe 20. The heights of these steps D1 and D2 are not particularly limited, but are preferably about 1.5 times the inner diameter of the water storage pipe 30, for example, about 225 mm if the inner diameter of the water storage pipe 30 is 150 mm as shown in Figure 2.

[0026] The water storage pipe 30 is also provided with a water intake means 40, which allows tap water stored in the water storage pipe 30 to be directly extracted. The water intake means 40 is made up of, for example, a manually operable on-off valve 41 and a water faucet 42. The water intake means 40 is preferably attached to the lowest position in the water storage pipe 30.

[0027] The above is the basic configuration of the emergency drinking water storage device 100 according to the present invention, but the water conveyance pipe 10, water supply pipe 20, and water storage pipe 30 are appropriately equipped with bypass pipes 50, various on-off valves V, automatic intake and exhaust valves A, etc. to control the flow of tap water and air flowing through them. The building B shown in the figure is an example of an office building (high-rise building) with five floors from the 1st to 5th floors and a penthouse PH on the roof.

[0028] Next, we will explain the operation of the emergency drinking water storage device 100 according to the present invention, which is configured as described above. Under normal circumstances, tap water flowing through the water main L is introduced into building B via the water conveyance pipe 10, and after its flow rate is measured by the water meter M, it is pressurized by the water pump P and sent to the water storage pipe 30. The tap water that flows into the water storage pipe 30 passes through it and flows to the water supply pipe 20 as shown by the arrows in the figure, and the water pressure causes it to rise almost vertically and be supplied to each floor according to the water demand on each floor.

[0029] In contrast, if a disaster such as an earthquake breaks the water main L or the motor stops, making it impossible to supply tap water, the flow of tap water in the water conveyance pipe 10, water supply pipe 20, and water storage pipe 30 may stop, or a backflow phenomenon may occur due to a decrease in water pressure in the water conveyance pipe 10 and water supply pipe 20. However, because steps D1 and D2 are formed near the junctions between the water conveyance pipe 10 and water supply pipe 20 and the water storage pipe 30, backflow or outflow does not occur in the water storage pipe 30, and most of the water remains accumulated inside the water storage pipe 30.

[0030] Therefore, if the supply of tap water is stopped, the tap water accumulated in the water storage pipe 30 can be used as emergency drinking water by manually drawing it into a plastic bottle or the like using the water intake means 40. Furthermore, since fresh tap water is constantly flowing from the water conveyance pipe 10 into the water storage pipe 30 under normal circumstances and does not stagnate, there is absolutely no risk of the tap water being contaminated and there are no hygiene problems.

[0031] In order to eliminate stagnation in the water storage pipe 30 and to allow fresh water to be taken in in an emergency, the on-off valve 41 of the water intake means 40 is located as close as possible to the water storage pipe 30 and is normally kept closed, opening only in an emergency. Furthermore, to prevent vandalism and theft, it is desirable that this water intake means (faucet 42 or on-off valve 41) 40 be locked so that only authorized managers can operate it.

[0032] The amount of emergency drinking water available from this water storage pipe 30 is determined by the amount of water stored in the water storage pipe 30, i.e., the capacity calculated from its diameter and length. Meanwhile, the amount of drinking water needed in an emergency is said to be at least 3 liters per person per day, or at least three days' worth, for a total of 9 liters. Multiplying this three-day amount (9 liters) by the number of people in Building B will give the amount of emergency drinking water needed for everyone in Building B.

[0033] For example, if there are 60 people in Building B, the amount of emergency drinking water needed is 9 L x 60 people = 540 L. If we calculate this using a pipe with an inner diameter of 150 mm, we get 540,000 cc / (7.5 cm x 7.5 cm x π) = approximately 3,057 cm, and the required pipe length is approximately 31 m. In other words, if a pipe with an inner diameter of 150 mm is used as water storage pipe 30, a length of approximately 31 m will be enough to store and supply three days' worth of emergency drinking water for everyone in Building B.

[0034] Furthermore, the larger the inner diameter of the water storage pipe 30, the shorter the length of the pipe can be, but if it is too large, a large installation space will be required and there will be a higher risk of stagnation areas inside.On the other hand, if it is too small, a corresponding length will be required.Therefore, if the inner diameter of the water supply pipe 20 and the water conveyance pipe 10 is approximately 50 mm as mentioned above, it is desirable that the inner diameter of the water storage pipe 30 be at least twice that, approximately 150 mm or more.

[0035] In addition, in this embodiment, an example in which a pressure-boosting lifting pump P is provided has been described, but this may be omitted in cases where water can be supplied solely by the water pressure of the water main L, such as in low-rise housing. Furthermore, in cases where space does not allow for the installation of a large step D1 in the basement or first floor, a check valve (backflow prevention valve) V1 may be provided at the connection point or on the water conduit 10 side in place of or together with the step D1 to prevent backflow from the water storage pipe 30 to the water conduit 10.

[0036] This prevents the tap water in the water storage pipe 30 from flowing back into the water conveyance pipe 10 even if water stored in the water supply pipe 20 downstream of the water storage pipe 30 applies reverse water pressure to the water storage pipe 30. Furthermore, the water stored in the water supply pipe 20 also returns to the water storage pipe 30 as the water in the water storage pipe 30 decreases due to water intake, so this water can also be taken as emergency drinking water.

[0037] 3 and 7 show an embodiment in which the emergency drinking water storage device 100 according to the present invention is applied to a high-rise building B with many residents (rooms), such as a large apartment building. First, in the embodiment shown in Fig. 3, the water storage pipe 30 is composed of a vertical pipe 31 connected to the water conveyance pipe 10 side and a horizontal pipe 32 connected to the water supply pipe 20 side.

[0038] This standpipe 31 has an inner diameter of, for example, 150 to 200 mm and a height of about 50 cm to 1000 cm, and its lower end is closed to form a boiler compartment 31b, and its upper end is provided with an open / close lid 31a closed with bolts or the like. A water conduit 10 is connected near the upper end of this standpipe 31, and water intake means 40 is provided. This water intake means 40 is composed of, for example, an open / close valve 41 and a faucet 42 (tap), etc., as in the above embodiment.

[0039] On the other hand, the horizontal pipe 32 also has an inner diameter of, for example, 150 to 200 mm and a length of 100 to 130 m, and is arranged so as to extend substantially horizontally from the vicinity of the boiler compartment 31b of the vertical pipe 31. Furthermore, the tip (pipe end) side of this horizontal pipe 32 is arranged at a position higher than the connection part with the vertical pipe 31, forming a gradient of, for example, about 1 / 300. A plurality of water supply pipes 20 are connected in parallel to this horizontal pipe 32.

[0040] With this configuration, emergency drinking water can be provided for all the residents of the apartment building, just as in the previous embodiment. For example, if the total number of residents in this apartment building is 220, then a three-day supply of emergency drinking water is required: 9 L x 220 = 1980 L. Therefore, if the length of this water storage pipe 30, i.e., the horizontal pipe 32 that makes up the majority of it, is approximately 113 m when the inner diameter is 150 mm, this will be sufficient to store 1980 L of emergency drinking water. Furthermore, if the inner diameter is 200 mm, then approximately 63 m will be sufficient.

[0041] The method of drawing water from this water storage pipe 30 involves first opening the on-off valve 41 and the water faucet 42 (tap) of the water intake means 40, and drawing water from there into a plastic bottle or the like. That is, even if the introduction of tap water from the water conveyance pipe 10 is stopped in an emergency, a certain amount of tap water remains in each water supply pipe 20, and the resulting head pressure exerts reverse water pressure on the water storage pipe 30. Therefore, the water intake means 40 is first opened to drain the excess tap water. Note that an automatic intake / exhaust valve A is provided at the upper end of each water supply pipe 20, and the inflow of air from this valve allows the operation of draining the tap water from each water supply pipe 20 to be carried out smoothly.

[0042] When the tap water in the water supply pipe 20 eventually runs out and the water pressure disappears, it becomes impossible to take water from the water intake means 40, so next, as shown in Figure 3, the openable cover 31a at the top end of the standpipe 31 is opened and the tap water stored in the water storage pipe 30 is taken from here using a manual pump 60 or the like. This manual pump 60 is equipped with a pump body 62 equipped with a handle 61, a water intake hose 63 and a discharge hose 64, and after attaching a weight 63a to the tip of the water intake hose 63 and placing it in the boiler compartment 31b at the bottom of the standpipe 31, the tap water in the boiler compartment 31b can be pumped up and taken out from the discharge hose 64 by manually moving the handle 61 back and forth.

[0043] The manual pump 60 does not require any special structure, and can be, for example, a pump similar to that conventionally used in wells. As mentioned above, the horizontal pipe 32 constituting the water storage pipe 30 has a slope, so all of the tap water in the horizontal pipe 32 flows into the boiler room 31b, allowing for efficient water intake. In this embodiment, too, to ensure fresh water intake in an emergency, the on-off valve 41 is located as close to the vertical pipe 31 as possible and is normally closed, opening only in an emergency. It is also desirable to use lockable covers 31a, faucets 42, and on-off valves 41 so that only authorized personnel can operate them.

[0044] With this configuration, the emergency drinking water storage device 100 of the present invention can be applied to a high-rise building B such as a large apartment building where several hundred people live, and the emergency drinking water necessary for all residents can be secured and supplied. If it is desired to further increase the amount of stored water, it is sufficient to make not only this water storage pipe 30 but all or some of the water supply pipes 20 thicker than before.

[0045] Next, in the embodiment shown in Figure 5, of the vertical pipe 31 and horizontal pipe 32 that make up this water storage pipe 30, the horizontal pipe 32 is inclined, for example, at a gradient of about 1 / 300 so that its tip (downstream side) is lower, opposite to the configuration in Figure 3, and an emergency water supply chamber 70 is installed at the tip side of the horizontal pipe 32, and water intake means 40 is provided within this emergency water supply chamber 70. This emergency water supply chamber 70 is, for example, an existing basement such as a pit or pump room, and can be accessed by opening an inspection hatch (with a lock) 71 formed in the ground level (GL) on the first floor and using stairs 72, etc.

[0046] Furthermore, by providing water intake means 40 consisting of a faucet 42 and an on-off valve 41 in this emergency water supply room 70, only authorized managers can operate the emergency water supply room 70 to draw water in an emergency. Moreover, because the tip of the horizontal pipe 32 that makes up this water storage pipe 30 is lowest, the entire amount of water stored in the water supply pipe 20 and water storage pipe 30 can be efficiently drawn without using a manual pump 60 or the like. Furthermore, by connecting a portion of the water supply pipe 20 to this water intake means 40 as shown in the figure, tap water will not stagnate at the tip of the horizontal pipe 32, and fresh tap water will always flow throughout the entire water storage pipe 30.

[0047] Next, in the embodiment shown in Fig. 6, this water storage pipe 30 is installed on the ceiling of the entrance or open corridor on the first floor, and when there is no space to install the water storage pipe 30 underground, etc., the same functions and effects as those of the above embodiment can be obtained by installing the water storage pipe 30 using the piping space on the first floor ceiling in this way. Also, in the embodiment, as in Fig. 3, if a gradient of, for example, about 1 / 300 is formed so that the tip (end of the pipe) of this water storage pipe 30 is higher, water can be efficiently taken in from the connection side with the water conveyance pipe 10 by the water intake means 40 (faucet 42, on-off valve 41) in an emergency.

[0048] Furthermore, as shown in Figure 7, of the water supply pipes 20 connecting from this water storage pipe 30 to each unit (each room), the water supply pipes 20 located in the exclusive area after the water meter M can be made longer than usual (for example, 3 to 10 times longer) by zigzagging or detouring horizontally in the ceiling (Figure (A)) or under the floor (Figure (B)) of each unit (each room), and if this water supply pipe 20 is equipped with a water intake means 40, this extra length of water supply pipe 20 itself will function as the aforementioned water storage pipe 30, making it possible for each unit (each room) to use the tap water stored in that water supply pipe 20 as drinking water in an emergency.

[0049] In each example, it is desirable to slope the water supply pipe 20 as much as possible within the available space so that water will naturally flow toward the water intake means 40 in the event of a water outage. Furthermore, as shown in Figure 1(C), if the water supply pipe 20 is made in a mesh or lattice shape, it will be possible to store more water (the same applies to the ceiling), and if a step is provided in front of the water intake means 40 under the floor to lower the water intake means 40, it will be easier to take water. [Explanation of symbols]

[0050] 10...Water pipe 20…Water supply pipe 30...Water storage pipe 31…Stand pipe 31a…Opening / closing lid 31b…Kamaba 32…Horizontal pipe 40…Water intake means 41...Shut-off valve 42...Faucet 50...Bypass pipe 60...Manual pump 61...Handle 62...Pump body 63...Water intake hose 63a…weight 64...Drain hose 70…Emergency water supply room 71...Inspection hatch 72...Stairs 100...Emergency drinking water storage device A...Automatic intake and exhaust valve B…Building D1, D2...step L...Water main M...Water meter P...Water pump V1: Check valve

Claims

1. An emergency drinking water storage device is characterized by comprising a water conduit that introduces tap water from a water main pipe into a building, and a water supply pipe that supplies the tap water introduced from the water conduit pipe to the building, a water storage pipe connected between the water supply pipe and the water conduit pipe, and a water intake means provided in the water storage pipe.

2. The emergency drinking water storage device according to claim 1, An emergency drinking water storage device characterized in that the height of part or all of the water storage pipe in the direction of gravity is lower than the height of the connection part with the water conveyance pipe.

3. The emergency drinking water storage device according to claim 1, An emergency drinking water storage device characterized in that a check valve is provided at the connection between the water conduit and the water storage pipe or in the water conduit.

4. The emergency drinking water storage device according to claim 1, An emergency drinking water storage device characterized in that the water storage pipe consists of a vertical pipe connected to the water conveyance pipe side and a horizontal pipe extending approximately horizontally from the vertical pipe and connected to the water supply pipe side.

5. The emergency drinking water storage device according to claim 4, An emergency drinking water storage device characterized in that the tip of the horizontal pipe is piped at a position higher than the connection with the vertical pipe to form a slope, and the water intake means is provided on the vertical pipe side.

6. The emergency drinking water storage device according to claim 4, An emergency drinking water storage device characterized in that the horizontal pipe has its tip piped at a position lower than the connection with the vertical pipe to form a slope, and the water intake means is provided at the tip side.

7. The emergency drinking water storage device according to claim 6, An emergency drinking water storage device characterized in that an emergency water supply chamber is provided at the tip of the horizontal pipe, and the water intake means is provided within the emergency water supply chamber.

8. The emergency drinking water storage device according to any one of claims 1 to 7, An emergency drinking water storage device characterized in that the inner diameter of the water storage pipe is larger than the inner diameter of the water conveyance pipe or water supply pipe.

9. The emergency drinking water storage device according to claim 1, An emergency drinking water storage device characterized in that the water storage pipe is installed in the ceiling piping space in the basement or first floor of a building.

10. The emergency drinking water storage device according to any one of claims 1 to 7, An emergency drinking water storage device characterized in that the water supply pipes located in the private areas of each unit are laid out in a serpentine or detour pattern within the ceiling or under the floor of each unit, and that the water supply pipes are further equipped with the water intake means.

11. The emergency drinking water storage device according to any one of claims 1 to 7, An emergency drinking water storage device characterized in that the water intake means is lockable.

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