JP2007217976A - Emergency water storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency water storage device capable of raising discharge efficiency of a sediment even if a water tank has big capacity and hardly needing such a maintenance that the inside of the water tank is cleaned or that the sediment is discharged. <P>SOLUTION: A water supply pipe 13 is connected to the lower part of the water tank 12 and, at the same time, water pipes 14 and 15 are connected to the upper and lower parts of the water tank 12, the other end section of the upper side water pipe 14 between both water pipes 14 and 15 is connected to a water supply facility having high frequency acted as drinking water, the other end section of the lower side water pipe 15 between both water pipes 14 and 15 is connected to a water supply facility having low frequency actuated as the drinking water and, at the same time, one end section of the lower side water pipe 15 is connected in the vicinity of a bottom wall 12d of the water tank 12 so that the sediment in the water tank 12 can be easily discharged. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an emergency water storage device that is buried underground in a residential site or the like in order to secure drinking water during a disaster.

  Conventionally, in this type of emergency water storage device, as shown in FIG. 12, a water supply pipe 5 connected to a water supply pipe 4 is connected to an upper end panel 3 near the bottom wall 2 of the water storage tank 1. The water pipe 7 is connected to the upper part of the lower end panel 6 so that the water tank 1 normally functions as a part of the water pipe, and the water in the water tank 1 is replaced with fresh water by using daily life water. It has become. And at the time of a water stop, it was comprised so that the water stored in the water storage tank 1 could be pumped and used from the pumping port 9 provided in the cover body 8 (refer patent document 1).

However, the above-described conventional emergency water storage device has the following problems. That is, when a large-capacity water storage tank (for example, about 400 to 500 liters) is used to accommodate the number of family members, water stagnation occurs in the water storage tank 1, and various germs are generated in the water storage tank 1. Or impurities contained in tap water may accumulate. If germs or impurities accumulate in the water tank 1, not only at the time of a disaster, but also the daily use of daily water is hindered.
Then, the water in the water storage tank 1 is stirred by flowing the water spouted from the opening pipe end of the water supply pipe 5 along the inner peripheral wall of the water storage tank 1 to prevent the water from becoming stagnation. Proposed. However, according to such a method, it is difficult to sufficiently discharge impurities having a specific gravity greater than that of water, and impurities having a specific gravity greater than that of water accumulate as precipitates in the water storage tank 1 over a long period of use. was there.
And if sediment accumulates excessively, the water quality in the water tank 1 will be deteriorated. Therefore, it is necessary to periodically clean the water tank 1 from the inspection port 10 or provide a drain hole to discharge the sediment. There was troublesome maintenance.

JP 2004-238820 A

  Therefore, the present invention was made to solve the above-described problems of the prior art, and can improve the sediment discharge efficiency even in a large-capacity water tank, And it aims at providing the emergency water storage apparatus which does not require the maintenance which cleans the inside of a water tank or discharges | emits sediment.

In order to achieve the above object, the first invention provides a water supply pipe on the upper side of the water storage tank, connects the water supply pipe to a water supply pipe to supply water to the water storage tank, and supplies the water to the water storage tank. A water pipe is connected to the water tank so that the water tank is always kept full, and water can be supplied by a water supply facility connected to the water pipe, and the water in the water tank can be pumped out when the water is shut off. Emergency water storage device
The water pipe is connected to the lower part of the water tank, the water pipe is connected to the upper and lower parts of the water tank, and the other end of the upper water pipe among the water pipes is frequently used for beverages. Connected to the water supply facility, the other end of the lower water pipe among the water pipes is connected to a water supply facility that is less frequently used for beverages, and one end of the lower water pipe is connected to the water tank. It is characterized by being connected to the vicinity of the bottom wall of the water storage tank so as to easily discharge the sediment.

According to the first aspect of the present invention, when a water supply facility that is frequently used for beverages, for example, a faucet for beverages such as kitchens and baths, is opened, the supernatant water is sent from the vicinity of the upper wall of the water storage tank to the upper side. Water is supplied to a water supply facility frequently used for beverages through a water pipe. On the other hand, if you open a faucet or other faucet that is used less frequently for beverages, such as a toilet or an outdoor sprinkler, the water collected on the bottom wall of the water tank will be used for beverages via the lower water pipe. Water is supplied to water supply equipment that is used less frequently. As a result, water can be used as usual by opening the tap of the water supply equipment as necessary, and water is supplied from the water supply pipe according to the amount of water used at this time, so the water level in the water tank Is automatically kept full. Furthermore, the specific gravity is higher than the water contained in tap water, and the sediment accumulated on the bottom wall of the water tank is discharged from the lower water pipe every time a water supply facility such as a toilet or outdoor watering is used. . Since such water supply facilities are used on a daily basis, the water in the water tank can always be kept fresh and clean. And since the water supplied from a lower side water supply pipe is hardly used for drinks, even if the taste of water is somewhat inferior, there is no influence. Furthermore, since water supply equipment that is frequently used for beverages such as kitchens and baths is connected to the upper water pipe, it is possible to provide supernatant water containing almost no sediment, that is, good quality and delicious water. it can.
Moreover, since fresh water containing almost no precipitate is stored in the water tank on a daily basis, even if the water outage is prolonged, it is possible to secure water with good hygiene over a long period of time.

  To achieve the above object, according to a second invention, in the first invention, the water supply pipe is branched and connected to the upper and lower parts of the water storage tank, and the water supply equipment connected to the upper water supply pipe and the lower side According to the amount of water used with the water supply equipment connected to the water supply pipe, a water supply switching device is provided that can supply water to the water storage tank from either the upper water supply pipe or the lower water supply pipe of the water supply pipe. Features.

  To achieve the above object, according to a third invention, in the second invention, the water supply switching device is configured such that the upper water supply pipe and the lower water supply pipe are connected, and the upper water supply pipe or the lower water supply pipe is connected. A connection thin tube from a water supply pipe is connected, and the upper water supply pipe or the lower water supply pipe is mechanically switched according to a pressure change of the upper water supply pipe or the lower water supply pipe.

According to the second and third inventions, when the plug of the water supply facility connected to the upper water supply pipe is opened, the water pressure of the upper water supply pipe decreases, and the upper water supply pipe and the lower water supply pipe The change in the pressure difference is transmitted to the water supply switching device via the connecting thin tube, and the water supply pipe and the lower water supply pipe are communicated with each other, so that the supernatant water from the upper wall of the water storage tank can be used for beverages via the upper water supply pipe. Water is supplied to a frequently used water supply facility. In addition, when the tap of the water supply equipment connected to the lower water pipe is opened, the water pressure in the lower water pipe decreases, and the change in the pressure difference between the upper water pipe and the lower water pipe is connected to the connecting thin pipe. Since the water supply pipe and the upper water supply pipe are communicated with each other, the water collected near the bottom wall of the water storage tank is used for beverages along with the sediment through the lower water supply pipe. Water is supplied to water supply facilities that are less frequent. As a result, in addition to the effects of the first invention, the flow of water in the water storage tank can be controlled according to the water supply situation, and the positive discharge of sediment from the lower water pipe and the upper feed It becomes possible to automatically and efficiently supply clean drinking water from the water pipe. Accordingly, it is possible to supply good quality and delicious water that does not contain sediment further to the water supply facility on a daily basis than the first invention, and contains almost no sediment in the water tank. You will be able to store no water on a daily basis.
In particular, according to the third aspect of the invention, the water supply switching device mechanically automatically switches according to the pressure change in the upper water supply pipe or the lower water supply pipe, so that the water supply switching device can operate even during a power failure. Thus, the water supply switching function can be maintained unless the water is cut off. Moreover, since an electric system is not required, maintenance of the water supply switching device can be facilitated, and no electric power is applied, so that it can be configured at low cost.

  To achieve the above object, according to a fourth invention, in the second or third invention, when water is supplied only to a water supply facility connected to the upper water supply pipe, the inside of the water storage tank is changed from the upper side to the lower side. When water is supplied from the lower water supply pipe so as to flow spirally toward the water supply equipment connected to the lower water supply pipe, the sediment deposited in the water storage tank is not diffused. Water is supplied from the upper water supply pipe so as to be discharged.

  According to the fourth aspect of the invention, when water is supplied only to the water supply equipment connected to the upper water pipe, the water is supplied into the water storage tank so as to flow spirally along the inner wall of the water storage tank. Thereby, it can prevent that the water in a water tank is always stirred and stagnated. Further, when water is supplied only to the water supply equipment connected to the lower water supply pipe, water is supplied from the upper water supply pipe into the water storage tank so as to discharge the sediment deposited in the water storage tank without diffusing. Thereby, in addition to the effect of 2nd or 3rd invention, it becomes possible to discharge | emit more efficiently, without diffusing the sediment deposited in the water tank.

  In order to achieve the above object, according to a fifth invention, in the second or third invention, a partition for maintaining a water supply direction from the upper water supply pipe and a water supply direction from the lower water supply pipe in the water storage tank. In the case where only the water supply equipment connected to the upper water supply pipe is supplied and water is supplied from the upper water supply pipe, and only the water supply equipment connected to the lower water supply pipe is supplied, Water is supplied from the lower water supply pipe so as to discharge the sediment deposited in the water storage tank without diffusing.

  According to the fifth aspect, the water ejected from the upper water supply pipe flows by the partition member so as to travel substantially straight from the upper side to the lower side of the water storage tank. Further, the water ejected from the lower water supply pipe also flows so as to travel substantially straight from the upper side of the water storage tank to the lower side by the partition member. Thereby, in addition to the effects of the second or third invention, even if water flows from the upper side to the lower side of the water tank, the diffusion of the sediment accumulated on the bottom wall of the water tank is prevented. The water supplied from the upper water supply pipe to the water supply facility contains almost no precipitate, and the precipitate can be discharged more efficiently from the lower water supply pipe.

According to the emergency water storage apparatus of the present invention, the water supply pipe is connected to the lower part of the water storage tank, the water supply pipe is connected to the upper and lower parts of the water storage tank, and the other end part of the upper water supply pipe among the water supply pipes is used for beverages. Connected to the water supply equipment that is frequently used as the other end of the lower water pipe among the water pipes, and the one end of the lower water pipe is connected to the water supply equipment that is less frequently used for beverages. It was connected to the vicinity of the bottom wall of the water tank so that the sediment in the water tank could be easily discharged.
This makes it possible to use the water in the supernatant that overflows from the water storage tank via the upper water pipe when opening the faucet or other water supply equipment that is frequently used for beverages such as kitchens and baths. When water is supplied to a water supply facility that is frequently used, but when a faucet or other faucet of a water supply facility that is used infrequently is used for drinking, such as toilets or outdoor sprinklers, the water collected on the bottom wall of the water tank Is supplied to a water supply facility that is less frequently used for beverages via the lower water pipe, so that the specific gravity is larger than the water slightly contained in the tap water, and the sediment accumulated on the bottom wall of the water tank is It is discharged from the lower water pipe every time a water supply facility such as a toilet or outdoor watering is used. Since such water supply facilities are used on a daily basis, the water in the water tank can always be kept fresh and clean. And since the water supplied from a lower side water supply pipe is hardly used for drinks, even if the taste of water is somewhat inferior, there is no influence. Furthermore, since water supply equipment that is frequently used for beverages such as kitchens and baths is connected to the upper water pipe, it is possible to provide supernatant water containing almost no sediment, that is, good quality and delicious water. it can.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view of an emergency water storage apparatus according to the first embodiment of the present invention, and FIG. 2 is a schematic diagram showing the flow of water inside a storage tank in the same example.

  As shown in FIGS. 1 and 2, the emergency water storage device 11 is embedded in the basement of a residential site or the like so that water for daily use at the time of a disaster can always be secured, and includes a water storage tank 12 and a water supply pipe 13. The upper water supply pipe 14 and the lower water supply pipe 15 are provided.

More specifically, the water storage tank 12 has a main body portion 12a formed in a horizontal cylindrical shape, and a cylindrical rising portion 12b having an inspection port 16 opened upward is formed on the upper surface of the central portion in the longitudinal direction. It is integrally formed. Furthermore, the water tank 12 is provided with strength, durability, and the like that normally function as a part of a water pipe, and is made of a material that is lightweight and excellent in rust prevention (for example, a stainless steel plate).
In addition, although the capacity | capacitance of the water storage tank which concerns on this embodiment is made into the magnitude | size of about 400-500 liter, it is not limited to this.

  A lid 17 is placed on the upper side of the inspection port 16, and the lid 17 is detachably attached to the inspection port 16 by a plurality of set bolts (not shown). Then, by removing these plurality of retaining bolts, the lid 17 can be opened and the inside of the water storage tank 12 can be easily inspected and cleaned. Further, the lid 17 has an air vent (not shown) for venting air in the water storage tank 12 and a pumping port (not shown) for pumping water in the water tank using a pump or the like. Opening and closing caps 18 and 19 are respectively attached to the air vent port and the pumping port.

  On the upper side of the water storage tank 12, a water supply pipe 13 for supplying water into the water storage tank 12 is provided. One end of the water supply pipe 13 is connected to a water supply pipe 20 embedded in a road or the like via a check valve (not shown). The other end of the water supply pipe 13, that is, the opening pipe end, is piped so as to be positioned in the vicinity of the bottom wall 12 d in the water storage tank 12 while penetrating the lower part of the upper end panel 12 c on the main body 12 a. ing. Further, the opening pipe end of the water supply pipe 13 is directed to the side so as to face the inner wall of the main body 12 a of the water storage tank 12, and slightly directed to the end plate 12 e on the lower side in the water storage tank 12. ing. As a result, water from the water supply pipe 20 flows into the water storage tank 12 through the check valve due to the water pressure, and the water ejected from the open pipe end of the water supply pipe 13 is as shown in FIG. Along the inner wall of the water storage tank 12, the water flows spirally from the upper side toward the lower side.

  On the other hand, on the lower side of the water storage tank 12, two water supply pipes for supplying the water in the water storage tank 12 to a water supply facility (not shown), that is, the upper water supply pipe 14 and the lower water supply pipe 15 are vertically separated. It is piped in the state. One end of the upper water supply pipe 14 is connected to a position in the vicinity of the upper wall 12f (shown in FIG. 2) of the main body 12a, that is, in this embodiment, the upper part of the lower end panel 12e of the main body 12a. ing. The other end of the upper water supply pipe 14 is connected to water supply equipment that is frequently used for beverages, such as a kitchen or a bathroom in a house.

On the other hand, one end of the lower water supply pipe 15 is connected to a bottom wall 12d in the vicinity of the lower end plate 12e of the main body 12a. In addition, the other end of the lower water supply pipe 15 is connected to a water supply facility that is used less frequently for drinks, such as a toilet or an outdoor sprinkler.
In addition, the one end part of the lower water supply pipe 15 is not limited to the configuration connected to the bottom wall 12d of the main body part 12a, and can be connected to, for example, the lowermost part of the lower end panel 12e. is there.

  According to this configuration, water from the water supply pipe 20 flows into the main body 12a of the water storage tank 12 from the water supply pipe 13 via the check valve, and the water level tries to reach the upper wall 12f of the main body 12a. The state in which the inflow of water from the water supply pipe 13 is stopped by closing the taps of the faucets and the like of the water supply equipment connected to the upper and lower water supply pipes 14, 15. It has become. Then, when a faucet or the like of a water supply facility that is frequently used for beverages is opened, water overflowed from the main body 12a is supplied to the water supply facility that is frequently used for beverages via the upper water supply pipe 14. Is done. On the other hand, when a faucet or the like of a water supply facility that is used less frequently for beverages is opened, the water collected on the bottom wall 12d of the main body 12a is used for beverages via the lower water supply pipe 15. Water is supplied to low water supply facilities. In this way, when the tap of the water supply facility is opened as necessary, water can be used as usual, and water is supplied from the water supply pipe 13 according to the amount of water used at this time. The water level inside is automatically kept full. Moreover, since the water supplied into the water storage tank 12 is ejected from the opening pipe end of the water supply pipe 13 and flows spirally along the inner wall of the water storage tank 12, the water in the water storage tank 12 is always stirred. So there is no stagnation.

  Moreover, the specific gravity is larger than the water slightly contained in the tap water, and the sediment accumulated at the bottom of the water storage tank 12 is discharged from the lower water supply pipe 15 every time a water supply facility such as a toilet or an outdoor sprinkler is used. . Since such water supply equipment is used on a daily basis, the water in the water storage tank 12 is always kept fresh and clean. Moreover, since the water supplied from the lower water supply pipe 15 is rarely used for beverages, there is no influence even if the taste of water is somewhat inferior. Furthermore, since the water supply equipment that is frequently used for beverages such as kitchens and baths is connected to the upper water supply pipe 14, it should provide supernatant water that contains almost no sediment, that is, good quality and delicious water. Can do.

  When the water supply is cut off due to a disaster, the check valve is activated as the water pressure in the water supply pipe 20 decreases, preventing water from flowing backward from the water storage tank 12 toward the water supply pipe 20 side. Therefore, the water storage tank 12 can be held in a full state. Therefore, the water stored in the water storage tank 12 can be freely pumped out from the pumping port provided in the lid body 17 by a manual pump or the like, and can be used as drinking water or domestic water. As described above, according to the present embodiment, water that is fresh on a daily basis and contains almost no sediment is stored, and therefore, even if the water outage is prolonged, it is possible to secure water with good hygiene over a long period of time. Will be able to.

Next, a second embodiment will be described in detail with reference to FIGS.
FIG. 3 is a side view of an emergency water storage apparatus according to the second embodiment of the present invention, FIG. 4 is a schematic diagram showing the flow of water inside the storage tank in the example, and FIG. 5 is a storage in the example. FIG. 6A is a schematic view showing the flow of water inside the tank, FIG. 6A is a cross-sectional view showing the internal structure of the water supply switching device in the same example, and FIG. 6B is a cross-section showing one operating state of the water supply switching device. FIG. 4C is a cross-sectional view showing an operating state of the water supply switching device different from FIG.

  In the emergency water storage apparatus 110 according to the second embodiment, the riser 12b, the upper and lower water supply pipes 14 and 15 are substantially the same as the configuration of the emergency water storage apparatus 11 according to the first embodiment. It is provided as a constituent member, and these descriptions are omitted here.

  3-5, between the water storage tank 12 and the water supply pipe 20 in the emergency water storage apparatus 110 according to the second embodiment, the water supply pipe 20 is supplied with water so as to supply water to the water storage tank 12. A water supply pipe 21 that is connected and bifurcated in the middle of the pipe is connected. The bifurcated water supply pipe 21 is vertically separated from the upper end plate 12c of the water storage tank 12, and the lower water supply pipe 21a and the water storage tank are located near the bottom wall 12d of the end plate 12c of the water storage tank. An upper water supply pipe 21b is connected to a position near the upper wall 12f of the end plate 12c.

  As shown in FIGS. 4 and 5, the opening pipe end of the lower water supply pipe 21 a is piped so as to be positioned in the vicinity of the bottom wall 12 d in the water storage tank 12 while penetrating the lower part of the end plate 12 c. . Further, the opening pipe end of the lower water supply pipe 21a is directed to the side so as to face the inner wall of the main body part 12a, and slightly directed to the end plate 12e on the lower side. Thereby, the water spouted from the opening pipe end portion of the lower water supply pipe 21 a flows spirally from the upper side to the lower side along the inner wall of the water storage tank 12.

  Furthermore, a gentle slope 12d1 is integrally formed on the bottom wall 12d of the water storage tank 12 from the upper side to the lower side, preferably toward the lower water supply pipe 15 below the opening pipe end of the lower water supply pipe 21a. It is formed like this, and has a structure in which sediment accumulated on the bottom wall 12d of the water storage tank 12 is easily accumulated on the lower side, and the flow rate is secured by providing innumerable small holes 21b1.

  On the other hand, the open pipe end portion of the upper water supply pipe 21b is extended so as to be close to the lower end end plate 12e while penetrating the upper part of the upper end end plate 12c. Further, the upper water supply pipe 21b in the water storage tank 12 is formed with innumerable small holes 21b1 capable of discharging water from the inside of the pipe toward the outside of the pipe. These small holes 21b1 are set to have a diameter so that the water in the pipe is gently diffused downward and the water in the water storage tank 12 is not stirred.

  Further, the upper water supply pipe 21b has a pipe diameter that does not cause resistance when water ejected from the lower water supply pipe 21a flows spirally in the main body 12a. Thereby, the water supplied from the upper water supply pipe 21b flows into the main body 12a without strongly stirring the sediment deposited on the bottom wall 12d. The sediment deposited on the bottom wall 12d is efficiently accumulated on the lower side through the slope 12d1 and then discharged from the lower water supply pipe 15.

  In addition, although the upper side water supply pipe 21b in the water storage tank 12 is suspended from the upper wall 12f of the main-body part 12a via the support member which is not shown in figure, such a support member is also omissible. Further, when the support member is disposed, it is desirable that the support member be formed in a shape and an arrangement place that do not cause resistance of water flowing spirally in the main body portion 12a.

  And the water supply switching apparatus 22 is provided in the branch part of these upper side water supply pipes 21b and lower side water supply pipes 21a, as FIG. 3 shows. The water supply switching device 22 is provided with a check valve (not shown), and the water supply switching device 22 and the water supply pipe 20 are connected via the check valve. And the water from the waterworks pipe 20 flows into the water storage tank 12 through the check valve by the water pressure.

  The water supply switching device 22 is connected to a connection thin tube 23 connected to the upper water supply tube 14 and a connection thin tube 24 connected to the lower water supply tube 15, and is transmitted through these connection thin tubes 23 and 24. According to the water pressure, the water from the water supply pipe 20 is configured to supply water by selecting one of the upper water supply pipe 21b and the lower water supply pipe 21a. As in the first embodiment, the upper water supply pipe 14 is a water supply facility that is frequently used for beverages such as a kitchen or a bathroom in a house, and the lower water supply pipe 15 is used for a toilet or an outdoor sprinkler. It is connected to water supply equipment that is used less frequently for beverages.

  An example of the water supply switching device 22 will be described. As shown in FIG. 6A, the water supply switching device 22 includes a cylindrical main body 22a, a switching passage 22b as a cylindrical movable body that moves forward and backward in the longitudinal direction of the main body 22a, Spring members 22e and 22f as a pair of urging members respectively disposed in first and second pressure regulating chambers 22c and 22d formed between the main body portion 22a and the upper and lower end portions of the switching passage portion 22b; , And is configured.

  A connection port 22a1 for the water supply pipe 21 or the water supply pipe 20 is formed in the upper side surface of the main body 22a. Further, the lower side surface portion has a connection port 22a2 for the upper water supply pipe 21b and a connection port 22a3 for the lower water supply pipe 21a, which are opened in a state of being vertically separated from each other. Further, a connection port 22a4 for the upper connection thin tube is formed on the upper surface of the main body 22a, and a connection port 22a5 for the lower connection thin tube is formed on the lower surface. The upper thin tube connection port 22a4 is connected to the connection thin tube 24 connected to the lower water supply tube 15, and the lower thin tube connection port 22a5 is connected to the connection thin tube 23 connected to the upper water supply tube 14. ing.

  Two openings 22b1 and 22b2 that are spaced apart in the vertical direction are formed on the side surface of the upper side of the switching passage 22b. These openings 22b1 and 22b2 have a hole diameter substantially the same as that of the water supply pipe 21 or the water supply pipe 20. Then, as shown in FIGS. 6B and 6C, when the switching passage 22b moves in the longitudinal direction and contacts the end of the main body 22, the opening 22b1 (or the opening 22b2) and the water supply The position with the tube 21 is substantially coincident.

  On the other hand, an opening 22b3 is formed at the center of the side surface on the lower side of the switching passage 22b. The opening 22b3 has a hole diameter substantially the same as that of the upper water supply pipe 21b or the lower water supply pipe 21a. As shown in FIG. 6B, when the switching passage 22b moves and contacts the lower portion of the main body 22a, the opening 22b3 and the lower water supply pipe 21a communicate with each other. Further, as shown in FIG. 6C, when the switching passage 22b moves and contacts the upper portion of the main body 22a, the opening 22b3 and the upper water supply pipe 21b communicate with each other.

  In addition, a plurality of flow rate adjusting holes 22b4 for adjusting the flow rate of water to the connection thin tubes 23 and 24 are provided in the upper surface portion and the lower surface portion of the switching passage portion 22b, and the switching passage portion 22b has two water supply pipes. By switching to one of 21a and 21b, a part of the flow rate adjusting hole 22b4 is blocked, thereby limiting the amount of water supplied from the connection thin tubes 23 and 24 to the water supply tubes 14 and 15. In this embodiment, a part of the flow rate adjusting hole 22b4 is always in communication with the water supply pipes 14 and 15 in order to make the water supply switching device 22 function stably.

  The spring members 22e and 22f urge the switching passage 22b so as to sandwich the switching passage 22b from above and below. The urging force of the spring members 22e and 22f is connected to the connection thin tubes 23 and 24 when all the faucets of the water supply equipment connected to the upper and lower water supply pipes 14 and 15 are closed. The pressure difference with the narrow tube is a reference (in this case, the pressure difference is 0), and as shown in FIG. 6A, the switching passage portion 22b is set so as to be located substantially at the center position of the main body portion 22a. . In this state, the switching passage portion 22b does not communicate with either the upper water supply pipe 21b or the lower water supply pipe 22a.

  In addition, the urging force of the spring members 22e and 22f is such that the water pressure of the upper water supply pipe 14 is lowered when the plug of the water supply equipment connected to the upper water supply pipe 14 is opened, thereby As a result, the pressure in the second pressure regulating chamber 22d decreases, and the switching passage 22b moves downward against the biasing force of the lower spring member 22f as shown in FIG. It is set to contact the lower surface. In this state, the switching passage portion 22b functions to allow the water supply pipe 20 and the lower water supply pipe 21a to communicate with each other.

  Furthermore, the urging force of the spring members 22e and 22f is connected to the lower water pipe 15 when the water pressure of the lower water pipe 15 is lowered when the plug of the water supply equipment connected to the lower water pipe 15 is opened. As shown in FIG. 6C, the switching passage 22b moves upward against the biasing force of the upper spring member 22e as shown in FIG. It is set so that it may contact | abut to the upper surface part. And in this state, the switching channel | path part 22b functions so that the waterworks pipe 20 and the upper side water supply pipe 21b may be connected.

  That is, in the second embodiment, when the tap of the water supply equipment connected to the upper water supply pipe 14 is opened, the water pressure in the upper water supply pipe 14 decreases, so that the water supply pipe 20 A small amount of water flows into the upper water supply pipe 14 through the water supply switching device 22 and the connecting narrow pipe 24. In this state, the change in the pressure difference between the upper water supply pipe 14 and the lower water supply pipe 15 is transmitted to the water supply switching device 22 via the connecting thin tubes 23 and 24, and the switching passage portion 22b is shown in FIG. As shown in Fig. 5, the water supply pipe 20 and the lower water supply pipe 21a are connected. Thereby, the water supplied from the lower water supply pipe 21a and the water overflowing from the main body 12a is supplied to the water supply equipment that is frequently used for beverages via the upper water supply pipe 14. Further, as shown in FIG. 4, the water supplied into the water storage tank 12 is ejected from the open pipe end of the lower water supply pipe 21a and flows spirally along the inner wall of the water storage tank. The water in the tank 12 is always stirred to prevent stagnation.

  Moreover, in the state in which the stopper of the water supply equipment connected to the lower water supply pipe 15 is opened, the water pressure in the lower water supply pipe 15 decreases, so that water from the water supply pipe 20 is supplied to the water supply switching device 22 and A small amount flows into the lower water supply pipe 15 through the connecting thin pipe 23. In this state, the change in the pressure difference between the upper water supply pipe 14 and the lower water supply pipe 15 is transmitted to the water supply switching device 22 via the connecting thin tubes 23 and 24, and the switching passage portion 22b is shown in FIG. As shown in Fig. 5, the water supply pipe 20 and the upper water supply pipe 21b are connected. As a result, water is supplied from the upper water supply pipe 21b, and the water collected in the vicinity of the bottom wall 12d of the main body 12a is supplied to the low-frequency water supply equipment that is used together with the precipitate through the lower water supply pipe 15 for drinking. Is done. Further, as shown in FIG. 5, the water supplied into the water storage tank 12 flows from the pipe end of the upper water supply pipe 21 b and the small hole 21 b 1 so as not to stir the water inside the water storage tank 12. In combination with the slope 12d1, the sediment can be discharged more smoothly.

As described above, the water supply switching device 22 automatically switches the flow paths of the water supply pipes 21a and 21b in accordance with the use status of the water supply equipment connected to the upper water supply pipe 14 and the lower water supply pipe 15. In addition, not only is it difficult for sediment to accumulate in the water storage tank 12, but also the sediment is quickly discharged out of the water storage tank 12.
As a result, the flow of water in the water storage tank 12 can be controlled according to the water supply situation, and the active discharge of the sediment from the lower water pipe 15 and the clean drinking water from the upper water pipe 14 are achieved. Water supply can be performed automatically and efficiently. Therefore, as compared with the first embodiment, it is possible to supply high-quality and delicious water that does not contain precipitates on a daily basis toward the water supply facility, and the water storage tank 12 has fresh and precipitates. Water that contains almost no water can be stored on a daily basis.
Furthermore, since the water supply switching device 22 performs mechanical automatic switching according to the pressure change of the upper water supply pipe 14 or the lower water supply pipe 15, the water supply switching device 22 can operate even during a power failure. The water supply switching function can be maintained unless the water is cut off. Moreover, since an electric system is not required, the maintenance of the water supply switching device 22 can be facilitated, and no electric power is applied, so that it can be configured at a low cost.

  The connecting thin tubes 23 and 24 are sufficiently narrower than the upper water supply tube 21b, the lower water supply tube 21a, and the upper and lower water supply tubes 14 and 15, and the change in pressure difference between the upper and lower water supply tubes 14 and 15 is reduced. Is configured with a pipe diameter that can be sufficiently transmitted to the water supply switching device 22. For this reason, the flow volume of the water supplied to the water supply equipment from the connection thin tubes 23 and 24 is a small part of the water used in the water supply equipment.

Moreover, in this 2nd Embodiment, although it comprised so that the connection thin tubes 23 and 24 might be connected from the up-down direction of the water supply switching apparatus 22, it is not limited to this, The connection thin tubes 23 and 24 are comprised. The water supply switching device 22 can be configured to be connected from a substantially horizontal direction. By doing so, the pressure transmitted through the connecting thin tubes 23 and 24 from the upper water supply pipe 14 and the lower water supply pipe 15 becomes substantially equal in the water supply switching device 22 at the time of water stoppage. The spring members 22e and 22f for driving the switching passage portion 22b can be easily designed.
As a result, compared to the first embodiment, the emergency water storage device 110 according to the second embodiment can provide good quality and delicious water that does not contain precipitates.

  As a modification of the second embodiment, there is a configuration as shown in FIGS. FIG. 7 is a side view showing a modification of the second embodiment, FIG. 8A is a sectional view of the water supply switching device in the example, and FIG. 7B is an operation of the water supply switching device in the example. It is sectional drawing shown.

  According to the emergency water storage device 111, the water supply switching device 220 normally connects the water supply pipe 20 and the lower water supply pipe 21a, and depends on the use situation of the water supply equipment connected to the lower water supply pipe 15. Thus, the water supply pipe 20 and the upper water supply pipe 21b are switched to communicate with each other.

  Specifically, as shown in FIG. 8A, the water supply switching device 220 includes a switching plate 222 that is rotatably supported by a rotation fulcrum 221 by a pressing spring 223 and a pressing member 224 at normal times. By pressing, the upper water supply pipe 21b is blocked and the water supply pipe 20 and the lower water supply pipe 21a function so as to communicate with each other. When the amount of water used in the water supply facility connected to the lower water supply pipe 15 increases, a force is applied to the switching plate 222 via the connection thin tube 24 as shown in FIG. By being drawn in to the connecting thin tube 24 side, the lower water supply pipe 21a is blocked, and the water supply pipe 20 and the upper water supply pipe 21b communicate with each other. With this configuration, it is possible to reduce the number of parts compared to the second embodiment while exhibiting substantially the same functions as those of the second embodiment.

Next, a third embodiment will be described with reference to FIGS.
FIG. 9 is a side view of an emergency water storage apparatus according to the third embodiment of the present invention, FIG. 10A is a schematic diagram showing the flow of water inside the storage tank in the example, and FIG. (A) AA arrow sectional drawing in FIG. 11, FIG. 11 is the schematic diagram which showed the flow of the water inside the storage tank in the example.

  In the emergency water storage apparatus 112 according to the third embodiment, the start-up portion 12b, the upper and lower water supply pipes 14, 15 are substantially the same as the configuration of the emergency water storage apparatus 110 in the second embodiment. These components are provided here, and the description thereof will be omitted here.

  As shown in FIG. 9, a water supply pipe 21 for supplying water to the water storage tank 12 is piped on the upper side of the water storage tank 12 of the emergency water storage device 112, and in the vicinity of the bottom wall 12 d of the water storage tank 12. An upper water supply pipe 21b is connected in the vicinity of the lower water supply pipe 21a and the upper wall 12f. The upper water supply pipe 21b and the lower water supply pipe 21a are branched from the water supply switching device 22 as in the second embodiment, and are embedded in the road or the like on the upper side of the water supply switching device. Connected water pipes are connected. And it is comprised so that the water from a waterworks pipe may flow in in a water storage tank with the water pressure.

The water supply switching device 22 is substantially the same device as the water supply switching device (illustrated in FIG. 6) used in the second embodiment.
In the third embodiment, as shown in FIG. 9, the upper narrow tube connection port 22a4 and the upper water supply tube 14 are connected via the connection thin tube 23, and the lower thin tube connection port. 22 a 5 and the lower water supply pipe 15 are connected via a connection thin tube 24. Thereby, when the stopper of the water supply equipment connected to the upper water supply pipe 14 is opened, water is supplied from the upper water supply pipe 21b into the water storage tank 12, and when the stopper of the water supply equipment connected to the lower water supply pipe 15 is opened, Water is supplied into the water storage tank 12 from the side water supply pipe 21a.

  As shown in FIGS. 10 (a) and 11, the opening pipe end of the lower water supply pipe 21a is disposed so as to face almost straight toward the lower end plate 12e, which is the second embodiment. The configuration of the opening pipe end portion of the lower water supply pipe 21a shown in the embodiment, that is, the opening pipe end portion is directed to the side so as to face the inner wall of the main body portion 12a of the water storage tank 12, and is directed slightly forward. The configuration is different.

  In addition, a gentle slope 12d1 from the upper side to the lower side is formed on the bottom wall 12d in the water storage tank 12 so as not to interfere with the lower water supply pipe 21a. For this reason, the sediment which accumulates on the bottom wall in the water storage tank 12 is structured to be easily accumulated on the lower side.

  Further, between the opposing surfaces of the upper wall 12f and the bottom wall 12d of the water storage tank 12, as shown in FIGS. 10 (a) and 10 (b), a partition plate 25 as a partition member is moved from the upper side to the lower side. It is arranged to extend. The partition plate 25 is supported at both ends in the longitudinal direction by the upper end plate 12c and the lower end plate 12e so as not to interfere with the upper and lower water supply pipes 21b and 21a.

  Further, as shown in FIG. 10 (b), the sectional view shape of the partition plate 25 is a convex shape toward the upper wall 12f, and a concave shape toward the bottom wall 12d. The left and right ends of the body and the inner wall of the main body 12a are appropriately spaced from each other. For this reason, the water of the upper side and the lower side of the partition plate 25 can come and go through the left and right sides of the partition plate 25. Furthermore, water above the partition plate 25 easily flows into the lower side of the partition plate 25, whereas water below the partition plate 25 is less likely to flow into the upper side of the partition plate 25. Yes.

  As described above, the water supply switching device 22 performs a switching operation by the same principle and action as in the second embodiment. However, in this embodiment, when the amount of water used in the water supply facility connected to the upper water supply pipe 14 increases. As shown in FIG. 6C, the switching passage portion 22b functions to communicate the water supply pipe 20 and the upper water supply pipe 21b. On the other hand, when the amount of water used in the water supply facility connected to the lower water supply pipe 15 increases, the switching passage 22b is connected to the water supply pipe 20 and the lower water supply pipe 21a as shown in FIG. 6 (b). Functions to communicate.

  Then, the water ejected from the upper water supply pipe 21b flows so as to travel substantially straight from the upper side to the lower side of the water storage tank 12 by the partition plate 25, as shown in FIG. Further, as shown in FIG. 11, the water ejected from the lower water supply pipe 21 a also flows so as to travel substantially straight from the upper side to the lower side of the water storage tank 12 by the partition plate 25. For this reason, even if water flows from the upper side to the lower side of the water storage tank 12, the diffusion of the sediment accumulated on the bottom wall 12d of the main body 12a is prevented.

Further, the water supplied from the upper water supply pipe 14 to the water supply facility contains almost no precipitate, and the precipitate can be discharged more efficiently from the lower water supply pipe 15. Further, since the partition plate 25 has a convex shape, the sediment does not accumulate on the partition plate 25 but accumulates on the bottom wall 12 d of the water storage tank 12. For this reason, the mixing prevention effect of the sediment to the water supplied to the water supply equipment from the upper water supply pipe 14 can be further enhanced.
In addition, about 3rd Embodiment, it is possible to comprise so that the water supply switching apparatus 220 which was demonstrated in the modification of 2nd Embodiment can be used.

It is a side view of the emergency water storage apparatus which concerns on the 1st Embodiment of this invention. It is the schematic diagram which showed the flow of the water inside the storage tank in the example. It is a side view of the emergency water storage apparatus which concerns on the 2nd Embodiment of this invention. It is the schematic diagram which showed the flow of the water inside the storage tank in the example. It is the schematic diagram which showed the flow of the water inside the storage tank in the example. (A) is sectional drawing which showed the internal structure of the water supply switching apparatus in the example, (b) is sectional drawing which showed one operation state of the water supply switching apparatus, (c) is water supply different from (b) It is sectional drawing which showed the operation state of the switching apparatus. It is the side view which showed the modification of 2nd Embodiment. (A) is sectional drawing of the water supply switching apparatus in the example, (b) is sectional drawing which showed operation | movement of the water supply switching apparatus in the example. Side view of the emergency water storage apparatus according to the third embodiment of the present invention (A) is the schematic diagram which showed the flow of the water inside the storage tank in the example, (b) is AA arrow sectional drawing in (a). It is the schematic diagram which showed the flow of the water inside the storage tank in the example. It is a side view of the conventional emergency water storage apparatus.

Explanation of symbols

11, 110, 111, 112 Emergency water storage device 12 Water storage tank 12a Main body 12d Bottom wall 12d1 Slope 12f Upper wall 13 Water supply pipe 14 Upper water supply pipe 15 Lower water supply pipe 20 Water supply pipe 21 Two-way water supply pipe 21a Lower water supply pipe 21b Upper water supply pipe 21b1 Small holes 22, 220 Water supply switching devices 23, 24 Connection narrow pipe 25 Partition plate (partition member)

Claims (5)

A water supply pipe is connected to the upper side of the water storage tank, the water supply pipe is connected to a water supply pipe to supply water to the water storage tank, and a water supply pipe is connected to the lower side of the water storage tank. In an emergency water storage device that is configured to be always kept in a full water state, water can be supplied by a water supply facility connected to the water pipe, and water in the water storage tank can be pumped out when the water is shut off.
While connecting the water supply pipe to the lower part of the water storage tank, connecting the water supply pipe to the upper and lower parts of the water storage tank,
Connect the other end of the upper water pipe among the water pipes to a water supply facility that is frequently used for beverages,
The other end of the lower water pipe among the water pipes is connected to a water supply facility that is less frequently used for beverages, and one end of the lower water pipe discharges sediment in the water tank. An emergency water storage device, wherein the water storage device is connected to the vicinity of the bottom wall of the water storage tank so as to facilitate the operation.   The water supply pipe is branched and connected to the upper and lower parts of the water storage tank, and the water supply according to the amount of water used by the water supply equipment connected to the upper water supply pipe and the water supply equipment connected to the lower water supply pipe The emergency water storage apparatus according to claim 1, further comprising a water supply switching device that enables water supply to the water storage tank from any one of an upper water supply pipe or a lower water supply pipe.   In the water supply switching device, the upper water supply pipe and the lower water supply pipe are connected, and the upper water supply pipe or a connection narrow pipe from the lower water supply pipe is connected, and the upper water supply pipe or the lower water supply pipe is connected. The emergency water storage apparatus according to claim 2, wherein the upper water supply pipe or the lower water supply pipe is mechanically switched in accordance with a pressure change of the side water supply pipe.   When water is supplied only to the water supply equipment connected to the upper water supply pipe, water is supplied from the lower water supply pipe so as to spirally flow from the upper side to the lower side in the water storage tank, and the lower side water supply pipe is supplied. 4. When supplying water only to a water supply facility connected to a water pipe, water is supplied from the upper water supply pipe so that the sediment deposited in the water storage tank is discharged without being diffused. The emergency water storage device described in 1.   A partition member for maintaining the water supply direction from the upper water supply pipe and the water supply direction from the lower water supply pipe is disposed in the water tank, and water is supplied only to the water supply equipment connected to the upper water supply pipe. In this case, when water is supplied from the upper water supply pipe and supplied only to the water supply equipment connected to the lower water supply pipe, the sediment deposited in the water storage tank is discharged without being diffused. The emergency water storage device according to claim 2 or 3, wherein water is supplied from a lower water supply pipe.

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