JP3012118U - Water storage device and filtration unit - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Regarding a water storage device and a filtration unit that collect rainwater and use it as cleaning water, flush toilet water, etc. It is an object of the present invention to provide a device that can supply purified water to a simple type, that is small in size and inexpensive, and that does not run out of water. [Structure] An integrated tank 11 is divided into two by a partition plate 12, one of which serves as a settling tank 13 and the other of which serves as a water storage tank 14, and the settling tank 13 is provided at or near the lower end of the partition plate 12.
And the water tank 14 are communicated with each other, the settling tank 13 is provided with a filter portion 16 communicated with the inflow port 15, and the water tank 14 is provided with an outflow pipe 18 for water supply, the lower end of which is provided. The pumping port 18i is disposed near the bottom of the water storage tank 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water storage device and a filtration unit that collect rainwater and use it as cleaning water, flush toilet water, or the like. In recent years, due to the tight supply of tap water, it has been recommended to collect rainwater and make effective use of it, and even local governments are providing subsidies to promote its use.

[0002]

[Prior art]

 Conventionally, concrete tanks are buried underground to collect rainwater and use it as agricultural water, but it cannot be used for household cleaning, flush toilets, rinsing, etc.

On the other hand, as shown in FIG. 9, it is a water tank 2 arranged in a part of a downspout 1 for inducing rainwater to flow down. Japanese Utility Model Publication No. 2-42762 proposes a water storage tank which is separately formed in the left-right direction into two tanks, a primary tank 5 for storing water and a secondary tank 6 for storing filtered water.

Then, the vertical gutter 1 is connected to the primary tank 5 to form a rainwater inflow tank, and a communication hole that connects the primary tank 5 and the secondary tank 6 to the lower portion of the partition plate 4 described above. And a filter 8 for filtering and moving rainwater flowing into the primary tank 5 to the secondary tank 6 by hydraulic pressure in the communication hole.

Further, an overflow pipe 7 is provided in the primary tank 5, one end of the overflow pipe 7 is opened above the primary tank 5, and the other end of the overflow pipe 7 is connected to the discharge pipe 3, The secondary tank 6 is provided with a water supply port for supplying filtered water in the tank as fire extinguishing water.

[0006]

Since the water tank is equipped with the filter 8, it can be used for cleaning at home, for flush toilets, for washing, etc., but the water in the primary tank 5 is kept under pressure. Since it is used to pass through the filter, the water tank 2 must be raised, and as a result, it can be applied only to condominiums and buildings such as 5-story buildings, etc. It cannot be applied to ordinary private houses such as two-story buildings.

Further, since the water tank 2 having a height of about 3 to 4 floors must be provided adjacent to the wall surface of a building such as a five-story building, it becomes a large scale, requires a large installation space, and requires a large construction cost. Get higher

Since the filter 8 is attached to the bottom side of the primary tank 5 so that the water in the primary tank 5 can move to the secondary tank 6 side due to the head difference, when the filter 8 is replaced from the manhole 9 In this case, the water in the primary tank 5 and the secondary tank 6 must be drained and emptied before the work is started, and the water is cut off.

The technical problem of the present invention is to pay attention to such a problem, and to supply the purified water to the extent that it can be used for cleaning at home etc., for flush toilets, for washing etc. by using rainwater. The purpose is to realize a water storage device and a filtration unit that are simple, compact, and inexpensive, and prevent water from running out.

[0010]

[Means for Solving the Problems]

 The water storage device according to claim 1 divides the integrated tank 11 into two by a partition plate 12, one set as a settling tank 13 and the other set as a water storage tank 14, and the settling tank at the lower end or near the lower end of the partition plate 12. 13 and the water storage tank 14 are connected. The settling tank 13 is provided with a filter section 16 communicating with the inflow port 15, the water storage tank 14 is provided with an outflow pipe 18 for water supply, and a pumping port 18i at the lower end thereof is provided in the water storage tank 14. It is located near the bottom.

According to a second aspect of the present invention, in the settling tank 13 of the first aspect, a sand reservoir 17 is arranged below the filter portion 16 to provide a water storage device.

A third aspect of the present invention is to provide the air supply pipe 19 in the water storage tank 14 according to the first or second aspect, and to dispose the air diffuser 20 at the lower end of the water supply pipe 19 near the bottom of the water storage tank 14. It is a device.

A fourth aspect of the present invention is a water storage device characterized in that a replenishment pipe 21 for supplying tap water is arranged in the water storage tank 14 of the first to third aspects.

A fifth aspect of the present invention is a water storage device characterized in that an overflow port 22 is provided above the water storage tank 14 of the first to fourth aspects.

According to a sixth aspect of the present invention, there is provided a water storage device characterized in that an inspection manhole 23 is provided on an upper portion of the water storage tank 14 according to the first to fifth aspects.

According to a seventh aspect of the present invention, the tank 11 of the first to sixth aspects is buried in the ground, and the inflow port 15 of the filter section 16 is connected to the down gutter of the building. Is.

A seventh aspect of the present invention is a filtration unit connected to a front stage of a water storage device, wherein the housing 25 is divided into a strainer chamber 27 and a filter chamber 28 by a partition plate 26, and a lower end of the partition plate 26. The strainer chamber 27 and the filter chamber 28 are communicated with each other through a passage 32 near the lower end.

A strainer 29 is built in the strainer chamber 27, an inflow port 30 communicating with the upper side thereof is provided, a filter 31 is built in the filter chamber 28, and the lower side of the filter 31 is the above-mentioned. The structure is such that it communicates with the passage 32 and the upper side communicates with the outlet 33.

According to a ninth aspect, the filter 31 in the filter chamber 28 according to the eighth aspect has a layered structure of two or more layers, and the mesh is relatively coarse on the lower side with respect to the upper side. It is a characteristic filtration unit.

A tenth aspect of the present invention is a filtration unit, characterized in that a drain port 34 is provided at the bottom of the filter chamber 28 of the eighth to ninth aspects.

According to the eleventh aspect, the integrated tank 11 is divided into two parts by a partition plate 12, one of which is a sink tank 13 and the other is a water storage tank 14, and the settling is performed at the lower end of the partition plate 12 or near the lower end thereof. This is a water storage device in which the tank 13 and the water storage tank 14 communicate with each other through a passage 35.

Further, the settling tank 13 is connected to the outlet 33 of the filtration unit 24 according to any of claims 8 to 10 by piping. Further, the water storage tank 14 is provided with an outlet 18 for water supply, a pumping port 18i at the lower end thereof is disposed near the bottom of the water storage tank 14, and a supply pipe 21 for supplying tap water is provided.

According to a twelfth aspect of the present invention, in the water storage device, an integral tank 11 buried in the ground is divided into two by a partition plate 12, one of which serves as a settling tank 13 and the other of which serves as a water storage tank 14. The settling tank 13 and the water storage tank 14 are connected to each other at or near the lower end. A filtration unit 24 connected to the settling tank 13 by piping is arranged on the ground.

[0024]

[Action]

 In the water storage device according to claim 1, since the settling tank 13 and the water storage tank 14 are communicated with each other at the lower portion, and the settling tank 13 is provided with the filter section 16, the water that has passed through the filter section 16 is stored in the water storage tank 14 It is moved to and stored. Then, it is pumped up from the outlet 18 of the water supply pipe and supplied as cleaning water, flush toilet water, washing water, or the like.

As described above, since the filter section 16 is provided on the upper side of the settling tank 13 instead of being provided on the partition section as in the conventional case, it is not necessary to apply a special pressure, and therefore, it is not necessary to increase the tank. , Can be miniaturized. Moreover, since the filter can be replaced from above in the water storage state, it is not necessary to empty the water storage device, and there is no fear of water interruption.

In the water storage device of the second aspect, since the sand pool 17 is arranged below the filter portion 16 in the settling tank 13, it is easy to remove and clean the sedimented sediment. In addition, it is possible to prevent the sediment from spreading around, and it is possible to prevent the water in the settling tank 13 from being soiled with the sediment.

In the water storage device of claim 3, the air diffuser 20 at the lower end of the air supply pipe 19 provided in the water storage tank 14 of claims 1 and 2 is disposed near the bottom of the water storage tank 14 to constantly perform aeration. Therefore, it is possible to prevent the water in the water storage tank 14 from spoiling and always supply clean water.

Since the water storage device of claim 4 is configured such that the supply pipe 21 for supplying tap water is disposed in the water storage tank 14 of claims 1 to 3, rainwater does not collect due to drought and the low water level. If this occurs, it is possible to prevent the equipment from becoming unusable by supplementing the minimum amount of tap water and always maintaining the minimum water level. When rainwater begins to collect due to rainfall, tap water is not supplied and only rainwater is stored.

In the water storage device of the fifth aspect, since the overflow port 22 is disposed above the water storage tank 14 of the first to fourth aspects, when the water storage tank 14 becomes full during the rainy season or the like. It can be discharged to drains, etc.

Since the water storage device of claim 6 has the inspection manhole 23 in the upper part of the water storage tank 14 of claims 1 to 5, even if water is contained in the water storage tank 14, The inside of the tank 14 can be inspected and maintained.

In the water storage device of claim 7, since the tank 11 of claims 1 to 6 is buried in the ground, it is not necessary to secure an installation space on the ground, and the water storage device is effective as a parking lot or the like. Available. Moreover, since the inlet 15 of the filter part 16 is connected to the down gutter of the building, rainwater collected on the roof of the building can be collected and supplied to the water storage device of the present invention to store the water, thereby effectively utilizing water resources. Can contribute to.

Since the filtration unit connected to the preceding stage of the water storage tank makes the strainer chamber 27 and the filter chamber 28 communicate with each other through the passage 32 and the strainer 29 and the filter 31 perform filtration, the filtration is surely performed. Becomes Further, since the water to be filtered has a structure that rises from the lower side of the filter 31, if water is sprinkled from above the filter 31 with a hose when cleaning the filter 31, dust and contaminants attached during the filtering can be obtained. Etc. easily drop from the filter 31, so cleaning is easy.

According to a ninth aspect, when the filter 31 has a layered structure of two or more layers, and the mesh is relatively coarse on the lower side with respect to the upper side, large dust and foreign matters are formed. Are blocked on the lower side of the filter 31 and blocked on the upper side as the filter 31 becomes finer, so that efficient and reliable filtration can be achieved. Also, when water is sprinkled from above during cleaning, the filter is coarser on the lower side, so that small dust accumulated on the upper side easily moves to the lower side and falls off and is removed from the filter 31.

When the drain port 34 is provided at the bottom of the filter chamber 28 as in claim 10, when cleaning the filter 31, dust and the like dropped from the filter 31 can be easily discharged from the drain port 34 below. Can be discharged to the outside for easier cleaning.

When the settling tank 13 of the tank having the settling tank 13 and the water storage tank 14 is connected to the above-mentioned filtration unit 24 by piping as in claim 11, the arrangement of the filtration unit 24 becomes free and the installation unit It is possible to freely design according to the request of. Further, since the water supply tank 21 is provided with the supply pipe 21 for supplying tap water, when rainwater does not accumulate due to drought, tap water can be replenished and used by the present apparatus.

According to a twelfth aspect, when the tank having the settling tank 13 and the water storage tank 14 is buried in the ground, and the filtration unit 24 connected to the settling tank 13 by piping is arranged on the ground, Since there is a filtration unit on the ground that requires regular cleaning, it can be easily cleaned on the ground, and there is no need to empty the water tank when cleaning as in the past, so there is no risk of water interruption.

[0037]

【Example】

 Next, practical examples of how the water storage device and the filtration unit according to the present invention are embodied will be described.

[Embodiment of Water Storage Device] FIGS. 1 to 3 are views showing an embodiment of the water storage device according to the present invention. FIG. 1 is a plan view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. It is a BB sectional view of FIG.

Reference numeral 11 denotes a horizontally long cylindrical tank, which is divided into two by a partition plate 12 as shown in FIG. 2, and a left side is a settling tank 13 and a right side is a water storage tank 14. Then, at the lower end of the partition plate 12 or in the vicinity of the lower end, the settling tank 13 and the water storage tank 14 are connected by a passage 35.

The settling tank 13 is provided with a filter section 16 communicating with the inflow port 15, and a sand pool 17 is provided just below the guide cylinder 36 at the lower end of the filter section. Therefore, if a vertical gutter of a building is connected to the inflow port 15, rainwater flows from the inflow port 15 into the filter unit 16 and is filtered, and then flows into the settling tank 13 from the guide cylinder 36. During this period, earth and sand and the like are settled in the settling tank 13, but most of them fall from the guide cylinder 36 into the sand pool 17 and are collected.

Since the filter part 16 is a filter box and has a structure for attaching / detaching to / from the tank 11, the filter part 16 is removed to enter the settling tank 13 to clean the sand in the sand pool 17. You can take it out. When replacing the filter, only the filter can be removed from the filter box.

In the water storage tank 14 on the right side, a water supply pipe 18 is provided in the vertical direction, the upper end thereof is connected to the outlet 18 o, and the lower end pumping port 18 i is arranged near the bottom of the water storage tank 14. Since the outlet port 18 is connected to a pump, the water in the water tank 14 is pumped up and used for household cleaning, flush toilets, laundry, etc.

Since the lower end of the water supply pipe 18 reaches the bottom of the water tank 14 and is fixed, the stability of the water supply pipe 18 is improved, and a connecting device such as cheese may be attached at a position slightly above the bottom. By attaching it, a horizontal pumping port 18i is formed.

An air supply pipe 19 is vertically provided in the water storage tank 14, an air diffusion pipe 20 at the lower end thereof is arranged near the bottom of the water storage tank 14, and an air supply port 19i at the upper end of the air supply pipe 19 is It is connected to a blower driven by a motor. Therefore, it is possible to prevent the water in the water storage tank 14 from spoiling by generating air bubbles from the vicinity of the bottom of the water storage tank 14 and performing aeration.

Further, a replenishment pipe 21 for supplying tap water is vertically arranged in the water storage tank 14, and an inflow port 21i at an upper end thereof is connected to a tank in which tap water is stored. A valve (ball tap) whose opening / closing is controlled by the level of the float 37 is attached to the lower end 21o of the supply pipe 21.

Therefore, when rainwater does not collect due to drought and the water level in the water tank 14 drops to the vicinity of the float 37, the valve of the ball tap opens and the tank where the tap water is collected passes through the inflow port 21i. , The minimum required tap water is replenished. As a result, when the water level rises, the valve of the ball tap closes, preventing further inflow of tap water, so maintaining the lowest water level at all times will prevent the device from becoming unusable.

Even when the rainwater starts to accumulate due to rainfall and the water level rises, the valve of the ball tap closes and the inflow of tap water is blocked, so that the rainwater that has passed through the filter unit 16 subsequently begins to accumulate.

Since the overflow port 22 is provided on the upper side of the water storage tank 14, in the case of heavy rain such as during the rainy season, excess rainwater overflows from the overflow port 22 and is discharged to a drain or the like. It

A manhole 23 for inspection is provided on the upper part of the water storage tank 14, but if this manhole 23 is arranged near the water supply pipe 18, the air supply pipe 19, the supply pipe 21, etc., it can be used for maintenance and inspection. It is convenient.

The water storage device of the present invention can be installed and used on the ground, but when the tank 11 is buried in the ground and the inflow port 15 of the filter part 16 is connected to the down gutter of the building, The tank 11 can be used as a parking lot or the like, which can contribute to effective use of land. At this time, it is advantageous for maintenance and inspection that the filter part 16 and the manhole 23 are exposed on the surface of the earth or installed at a position shallow from the ground.

The tank 11 is reinforced by fixing a ring-shaped reinforcing pipe 38 to the inner circumference of the tank 11. Legs 39 are fixed to the lower outside of the tank 11 so that the tank is stable.

[Embodiment of Filtration Unit] FIGS. 4 to 7 are views showing an embodiment of the filtration unit according to the present invention. FIG. 4 is a plan view with a half of the lid cut off, and FIG. 5 is A-A in FIG. FIG. 6 is a right side view and FIG. 7 is a cross sectional view showing another embodiment. This filtration unit is installed before the water storage device that does not have a filter function.

Reference numeral 25 denotes a rectangular parallelepiped casing, the inside of which is partitioned by a partition plate 26 into a strainer chamber 27 and a filter chamber 28, but the lower end of the partition plate 26 or the vicinity of the lower end is open, and the strainer The chamber 27 and the filter chamber 28 communicate with each other through a passage 32.

A strainer 29 is built in the strainer chamber 27, and a vertical gutter 40 of a building is connected to an inflow port 30 provided on the upper side of the strainer chamber 27 so that rainwater can flow in.

The outflow chamber 41 having the outflow port 33 and the filter chamber 28 are partitioned by a partition plate 42, and the filter chamber 28 and the outflow chamber 41 communicate with each other in a space 43 above the partition plate 42. ing.

Therefore, as shown by the arrow, the water flowing into the strainer chamber 27 passes through the strainer 29, descends, and then rises from the lower side of the filter chamber 28 via the passage 32 to the filter. After passing through 31, the space 43 above the partition plate 42 flows into the outflow chamber 41, and is supplied from the outflow port 33 to the water storage device.

The filter 31 in the filter chamber 28 has a layered structure of two or more layers. The upper part has a finer mesh, and the lower part has a coarser mesh. Therefore, since large dusts and impurities are blocked on the lower side of the filter 31 and blocked on the upper side as the filter 31 becomes finer, the filter can be efficiently and reliably filtered, and the filter is less likely to be clogged. Also, when the filter is clogged, since the filter is coarser toward the lower side, small dust accumulated on the upper side easily moves to the lower side and is removed and removed from the filter 31.

A drainage port 34 is provided at the bottom of the filter chamber 28, and when cleaning the filter 31, dust and the like that has fallen off from the filter 31 is easily discharged to the outside from the drainage port 34 directly below. it can. The upper lid 44 is removed when cleaning, replacing, maintaining, or inspecting the filter 31 and the strainer 29.

FIG. 7 shows another embodiment of the filtration unit, in which the outflow chamber 41 in FIG. 5 is omitted and the size is reduced. That is, the partition plate 42 and the right side wall of the housing 25 are integrated, the upper space 43 of the partition plate 42 in FIG. 5 is closed by the right side wall of the housing 25, and the housing 25 is provided with the outlet 33. is there.

[Example in which the filtration unit and the water storage device are connected] FIG. 8 is a piping diagram showing a state in which the filtration unit and the water storage device having no filtration function are connected and can be used. 24 is the above-mentioned filtration unit, the inflow port 30 of which is connected to the downspout 40 of the building 45. The outflow port 33 of the filtration unit 24 is connected to a water storage device buried underground by a pipe 46.

This water storage device has basically the same structure as the water storage device illustrated in FIGS. 1 to 3 except that the filter portion 16 is omitted. That is, the inside of the tank 11 buried underground is partitioned by the partition plate 12 into the settling tank 13 and the water storage tank 14, and only the lower end of the partition plate 12 is in communication.

Therefore, dust and the like settle in the settling tank 13, and only clean water that does not contain dust and the like moves to the water storage tank 14 from the passage 35 and is pumped up by the pump 47 from the water supply pipe 18 to the flush toilet. It is also used for washing machines, car wash and irrigation.

The air pressure-fed from the blower 48 on the ground passes through the air supply pipe 19, floats up as air bubbles from the diffusion pipe 20 at the lower end, and aerates the water in the water storage tank 14, so that the water is decomposed. It can be prevented.

Since the replenishment pipe 21 is arranged in the water storage tank 14 and is connected to the elevated water tank 49, when rainwater does not collect due to drought and the water level drops, the ball tap valve opens. The tap water is replenished from the elevated water tank 49, and the lowest water level is always stored, so the water storage device will not be disabled.

In the Okinawa region, as a measure against drought, even in a house with 1 to 3 floors, an elevated water tank is installed to store tap water, so that the “(upper) tap water” in the present invention is used. Indicates water supplied from a tank such as an elevated water tank.

An overflow port 22 is provided at the upper end of the water storage tank 14, and when the water storage device becomes full during the rainy season, the water overflowing from the overflow port 22 is discharged to the drain groove 50 and the like. To be done.

Since the manhole 23 exposed on the ground is provided on the water tank 14, the inside of the water tank 14 can be inspected, maintained, and cleaned. The settling tank 13 also has a manhole 51 for maintenance and inspection and cleaning.

[0068]

[Effect of device]

 According to the water storage device of claim 1, since the water that has passed through the filter section 16 in the settling tank 13 is moved to and stored in the water storage tank 14, clean water is constantly pumped up for cleaning water, flush toilet water, and laundry. It can be supplied for business purposes. Moreover, since the water that has passed through the filter portion 16 is stored in the settling tank 13 and the water storage tank 14, it is not necessary to increase the head difference and apply pressure to pass the filter, which is suitable for downsizing. In addition, since the filter can be replaced from above while it is used as a water storage tank, there is no need to empty the water storage device and there is no fear of water interruption.

According to the second aspect, since the sediment that has settled is deposited in the sand pool 17 on the lower side of the filter portion 16, the removal and cleaning of the sediment becomes easy, and the sediment spreads around. Since it does not exist, it is possible to prevent the water in the settling tank 13 from being soiled with soil.

According to the third aspect, since the air is generated from the air diffuser 20 provided in the water storage tank 14 to constantly aerate the water in the water storage tank 14, the water in the water storage tank 14 is decomposed. Can be prevented.

According to the fourth aspect, since the tap water can be replenished from the replenishment pipe 21 when the water level is low, the required minimum water level can be maintained even when the water level is low, and the device is not disabled.

According to the fifth aspect, since the overflow port 22 is provided on the upper side of the water storage tank 14, when the water storage tank 14 becomes full due to heavy rain, excess water can be discharged to a drainage channel or the like.

According to the sixth aspect, since the inspection manhole 23 is provided on the upper portion of the water tank 14, the inside of the water tank can be inspected and maintained by opening the manhole 23 even when water is contained.

According to the seventh aspect, since the water storage device itself is buried in the ground, the water storage device can be effectively used as a parking lot or the like. In addition, since the rainwater that has fallen on the roof of the building is collected and passed through the filter section 16 and stored in the water storage device of the present invention, it has a great effect on the effective use of water resources.

Since the filtration unit connected to the front stage of the water storage tank filters by the strainer 29 and the filter 31 as in claim 8, the filtration is ensured. Further, since the water to be filtered rises from the lower side of the filter 31, when cleaning the filter 31, if water is sprayed from above the filter 31 with a hose or the like, dust and contaminants attached during the filtration can be obtained. Can be easily separated from the filter 31 and fall down, which makes cleaning easy.

When the filter 31 has a layered structure of two or more layers and the lower side is relatively coarse with respect to the upper side as in claim 9, large dust and foreign matters are blocked by the lower side of the filter 31. Since the finer the particles, the finer the particles are blocked on the upper side, the filtration can be performed efficiently and reliably, and the filter effect is extended. Also, when water is sprayed from above to clean, the filter is coarser on the lower side, so even small dust accumulated on the upper side can easily move to the lower side and fall off the filter 31.

When the drain port 34 is provided at the bottom of the filter chamber 28 as in claim 10, dust and the like that fall off from the filter 31 during cleaning of the filter 31 can be easily discharged from the drain port 34 directly below. It can be discharged to the outside and cleaning becomes easy.

When the settling tank 13 of the water storage device is pipe-connected to the filtration unit 24 as described in claim 11, the water storage device does not need to have a filtering function, and the filtration unit 24 can be arranged freely. become. In addition, since water supply can be supplied to the water storage tank 14, it is possible to maintain the minimum water level at the time of drought and prevent the water storage device from becoming unusable.

When the water storage device is buried in the ground and the filtration unit 24 connected to the settling tank 13 by piping is disposed on the ground, the filtration unit that needs to be cleaned regularly is provided. Since it is on the ground, it can be easily cleaned on the ground, and since there is no need to empty the water tank when cleaning as in the past, there is no fear of water interruption.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a water storage device according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG.

3 is a sectional view taken along line BB in FIG.

FIG. 4 is a plan view (a state in which a half of the lid is cut off) showing an embodiment of the filtration unit according to the present invention.

5 is a sectional view taken along the line AA in FIG.

FIG. 6 is a right side view of an embodiment of the filtration unit according to the present invention.

FIG. 7 is a vertical sectional view showing another embodiment of the filtration unit.

FIG. 8 is a connection piping diagram of the filtration unit and a water storage device having no filtration function.

FIG. 9 is a vertical cross-sectional view of a conventional water storage device.

[Explanation of symbols]

 11 Tank 12 Partition Plate 13 Settling Tank 14 Water Tank 15 Inlet Port 16 Filter Part 17 Sand Pool 18 Water Supply Pipe 18i Pumping Port 19 Air Supply Pipe 20 Air Diffusing Part (Diffusing Pipe) 21 Supply Pipe 22 Overflow Port 23 Manhole 24 Filtration Unit 25 Housing Body 26 Partition Plate 27 Strainer Chamber 28 Filter Chamber 29 Strainer 30 Inlet 31 Filter 32 Passage 33 Outlet 34 Drainage 35 Passage

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[Procedure amendment]

[Submission date] July 14, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (12)

[Scope of utility model registration request] 1. An integral tank 11 is divided into two by a partition plate 12, one set as a settling tank 13 and the other as a water storage tank 14, and the settling tank 13 and the water storage tank at the lower end or near the lower end of the partition plate 12. 14, the settling tank 13 is provided with a filter portion 16 communicating with the inflow port 15, and the water storage tank 14 is provided with an outflow pipe 18 for water supply, and a pumping port at the lower end thereof. 18i is disposed near the bottom of the water storage tank 14, and a water storage device characterized by the above. 2. The water storage device according to claim 1, wherein a sand pool 17 is arranged below the filter portion 16 in the settling tank 13. 3. An air supply pipe 19 is provided in the water storage tank 14, and an air diffuser 20 at the lower end thereof is arranged near the bottom of the water storage tank 14, according to claim 1 or 2. Water storage device. 4. The water storage device according to claim 1, wherein a replenishment pipe 21 is provided in the water storage tank 14 for connecting to a tank in which tap water is stored. 5. An overflow port 22 is provided above the water storage tank 14, and the overflow port 22 is provided.
Water storage device described in. 6. The water storage device according to claim 1, wherein a manhole 23 for inspection is provided on an upper portion of the water storage tank 14. 7. The water storage device according to claim 1, wherein the tank 11 is buried in the ground, and the inflow port 15 of the filter section 16 is connected to a vertical gutter of a building. 8. A filtration unit connected to a front stage of a water storage device, wherein the housing 25 is partitioned by a partition plate 26 into a strainer chamber 27 and a filter chamber 28, and the lower end or the lower end of the partition plate 26 is in the vicinity thereof. In the above, the strainer chamber 27 and the filter chamber 28 are communicated with each other through the passage 32. The strainer chamber 27 has the strainer 29 built therein, and the inflow port 30 communicating with the upper side thereof is provided, and the filter chamber 28 has the filter 31 built therein. The filter unit has a structure in which the lower side of the filter 31 communicates with the passage 32, and the upper side communicates with the outflow port 33. 9. The filter 31 in the filter chamber 28 has a layered structure of two or more layers, and the mesh is relatively coarse on the lower side with respect to the upper side. Filtration unit. 10. The filtration unit according to claim 8, wherein a drain port 34 is provided at the bottom of the filter chamber 28. 11. The integrated tank 11 is divided into two by a partition plate 12, one of which serves as a settling tank 13 and the other of which serves as a water storage tank 14, and the settling tank 13 and the water storage tank near the lower end of the partition plate 12 14. The settling tank 13 is connected to the filter unit 24 according to claim 8.
The water storage tank 14 is provided with an outflow pipe 18 for water supply, and a pumping port 18i at the lower end thereof is disposed near the bottom of the water storage tank 14 to supply tap water. A water storage device having a supply pipe 21. 12. An integrated tank 11 buried in the ground is divided into two by a partition plate 12, one of which serves as a settling tank 13 and the other of which serves as a water storage tank 14, and the lower end or near the lower end of the partition plate 12, A water storage device, characterized in that the settling tank 13 and the water storage tank 14 are communicated with each other, and that the filtration unit 24 of claim 8 which is connected to the settling tank 13 by piping is arranged on the ground.