JP2001115503A - Rainwater storage tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainwater storage tank capable of preventing rainwater through an introduction pipe from being led to the inside of a fire prevention water tank since there is a by-pass pipe in the fire prevention water tank unlike the conventional method, solving such a problem as a large quantity of rainwater is discharged in the case of an abnormal weather, having no possibility of causing a secondary disaster, or preventing the occurrence of damage from water in a setting equipment (sensor such as level sensor or the like is susceptible in moisture) and having no possibility of malfunction. SOLUTION: A rainwater storage tank is used as a storage separation room and a pumping room, a rainwater inlet pipe and an inlet pipe of waterworks are connected to the storage separation room, and a water outlet pipe and a water absorption pipe are connected to the pumping room, a by-pass pipe is provided to a rainwater settling section set in the rainwater inlet pipe, the by-pass pipe is connected to a combined flow section on an outflow side of the water outlet pipe, and it is so constituted that water exceeding a fixed quantity of water stored in the rainwater storage tank is reused. Accordingly, rainwater can be reused. In the case where abnormal weather occurs, rainwater is discharged through the by-pass pipe, and a secondary disaster can be prevented. The occurrence of damage from water in a setting equipment can be prevented. The upper surface of the rainwater storage tank is leveled off so as to make good use of it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater tank for reusing rainwater and a septic tank and for preventing the floating of the rainwater tank.

[0002]

2. Description of the Related Art Rainwater storage (rainwater storage tanks) using septic tanks from the viewpoint of effective use of resources and utilization of septic tanks for other purposes, and prevention of flood damage such as flash floods and floods, has been promoted in urban or urban areas. Tend to be installed in places such as However, in reality, there is no general household or a medium-sized rainwater cistern for the purpose of rainwater reuse, and there is a demand for such a rainwater cistern.

Incidentally, in the literature, there is a fire prevention water tank disclosed in Japanese Patent Application Laid-Open No. Hei 9-137482 if the invention is slightly related to the present invention. An object of the present invention is to use and reuse rainwater as fire protection. The structure is divided into a sedimentation chamber and a water storage chamber by a partition wall provided with a water inlet for a fire prevention water tank, and rainwater is introduced into the sedimentation chamber. A pipe is connected, a water supply pipe and a discharge pipe are connected to the water storage chamber, respectively, and the water level of the water storage chamber is always provided at a predetermined position through detection of a liquid level sensor and inflow of tap water from the water supply pipe (allowable water level). Maintained). With this configuration, an allowable water level is secured in the fire prevention water tank, and the water is used as disaster prevention and emergency water, and the rainwater stored in the fire prevention water tank is reused.

[0004]

In the above document, since no fire pipe is provided in the fire prevention water tank, rainwater from the introduction pipe is always guided into the fire prevention water tank, and a large amount of rainwater is discharged in an abnormal time. Problems such as secondary flood damage or damage to installed equipment due to water (because sensors such as liquid level sensors are sensitive to moisture) There is a problem that there is a fear that it is a problem.

[0005] Further, in the above document, since the water level is controlled by a liquid level sensor, countermeasures against water are required, so that there is a problem in that the device is installed outdoors, and there is a problem that it causes a failure. is there.

[0006] Further, the invention of the document has a configuration in which various devices are provided on the upper surface of the fire prevention water tank, so that it is impossible to use the space on the upper surface of the fire prevention water tank, and there is a problem that the space cannot be effectively used. is there.

[0007]

Means for Solving the Problems According to the invention of claim 1, a rain pipe is provided in a rain water storage tank, and rain water at the time of abnormality is discharged outside the rain water storage tank. It is intended to prevent secondary flood damage, to avoid damage to installed equipment due to water, to make the top surface of the rainwater tank flat, and to make effective use of land.

According to a first aspect of the present invention, there is provided a rainwater storage tank partitioned into a storage separation chamber and a pumping chamber by a partition plate having a communicating portion, wherein a rainwater inflow pipe is connected to the storage separation chamber and water flows out to the pumping chamber. A pipe is connected, and a rain pipe is provided at a rainwater sedimentation section provided on the inlet side of the rainwater inflow pipe, and an outflow side of the rainwater pipe is connected to a junction on the outflow side of the water outflow pipe. And a water absorption pipe provided in the pumping chamber, a fixed amount of water is stored in the rainwater storage tank, and the water other than the fixed amount of water is reused.

The invention of claim 2 aims at avoiding the inflow of suspended matter in the rainwater tank, reducing the number of times of cleaning the rainwater tank, or ensuring the inflow of rainwater.

[0010] A second aspect of the present invention is a rainwater storage tank, wherein a trough portion is provided in the rainwater sedimentation part and the rainwater inflow pipe, and suspended matter in the rainwater sedimentation part does not flow into the rainwater inflow pipe.

According to a third aspect of the present invention, the water supply is reliably performed using a mechanism that operates easily and reliably, and the water supply is performed using equipment that does not fail due to rainwater, moisture, or the like. Things, etc. Claim 3 is a rainwater storage tank having a configuration in which a valve provided in the inflow pipe is controlled via a valve control mechanism, and the valve control mechanism is provided in the rainwater storage tank.

The invention of claim 4 intends to make the top surface of the rainwater basin flat to effectively use the land and effectively use the space above the rainwater basin.

According to a fourth aspect of the present invention, there is provided a rainwater storage tank having a structure in which the upper surface of the rainwater storage tank is flat and the upper surface is used as a space for a building, a garage, a flat ground or the like.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A predetermined amount of water (at a fixed water level) is stored in this rainwater storage tank for the purpose of emergency use and prevention of floating. When the water stored in the rainwater storage tank exceeds the fixed water level, the water is sucked up through the water suction pipe and reused. In this reuse, when the water level falls below the fixed water level, the water supply is introduced through the float valve mechanism. That is, by the action of the float valve mechanism (valve control mechanism), an opening / closing valve (a valve such as a solenoid valve, a manual valve, or another valve) provided in the inflow pipe.
Is opened, the water supply is introduced into the pumping chamber through this inflow pipe, and when the water level returns to a fixed level, the opening and closing valve provided in the inflow pipe is closed by the action of the float valve mechanism to introduce the water supply. Stop. As described above, the fixed water level of the rainwater reservoir is controlled by the action of the float valve mechanism.

The water in the rainwater storage tank (processed water) is reused when the water level in the rainwater storage tank exceeds the fixed water level and when the float for spinning the horn is at the operation return position. That is, the water is sucked up by using the horn and the water suction pipe, and is reused as toilet water, watering water, planting water, car washing water, and other water. If the water level drops below the fixed level after reuse,
Supply water supply.

By repeating the above, the water in the rainwater storage tank is reused.

When the water in the rainwater reservoir exceeds the full water level, the water is sent to the junction via an inflow pipe and / or a highway pipe, and then, for example, drained into a gutter or a river.

In order to prevent the phone from running idle, a float is arranged in the pumping chamber, and when the operation is stopped, the phone is stopped. In this case, water is immediately introduced from the water supply by the above operation, and the water level is immediately returned to the fixed water level.

The rainwater reaches the rainwater sediment through the rainwater inflow pipe, where the suspended matter is filtered. The treated water passes through the trap section and reaches the storage / separation chamber together with the air from the ventilation pipe, where it is settled and filtered. This trough serves to prevent backflow and odor of the water in the storage / separation chamber. The water filtered in the storage / separation chamber is guided to the pumping chamber via the communication part.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the present invention will be described below.

Reference numeral 1 denotes a rainwater storage tank, and a septic tank (when a septic tank is used) constituting the rainwater tank 1 is divided into a storage separation chamber 4 and a pumping chamber 5 by a partition plate 3 having a communication portion 2. . The upper surface of the rainwater reservoir 1 is flat.

A rainwater inflow pipe 6 is connected to the storage separation chamber 4 of the rainwater storage tank 1. This rainwater inflow pipe 6 has a trough section 60
And a rainwater sedimentation section 61 and a ventilation pipe 62 for removing suspended matter from the rainwater and being introduced into the storage separation chamber 4 via the trough section 60 with air introduced from the ventilation pipe 62. Structure. The trough section 60 is always located above the water level of the rainwater sedimentation section 61 to prevent inflow of suspended matter and diffusion of odor.

In the pumping chamber 5, a float 7 is provided.
The float valve mechanism 70 (valve control mechanism) is controlled by raising and lowering the
The on-off valve 70a provided in the float valve mechanism 70 is closed and the inflow pipe 8 is closed.
To introduce and stop the introduction of water supply 9 from Japan. By the action of the float valve mechanism 70, the fixed water level H of the rainwater reservoir 1 is controlled. This pumping chamber 5 is provided with a water suction pipe 10 reaching the bottom substantially,
The water absorption pipe 10 is provided with a filter 101 and a phone 102. In the figure, reference numeral 103 denotes a faucet provided on the water absorption pipe 10. The pumping chamber 5 is provided with a water outflow pipe 11 having a check valve 111, and this water outflow pipe 11 is connected to a junction 12.

Reference numeral 13 denotes a breathing pipe. The breathing pipe 13 connects the rainwater precipitation section 61 and the junction section 12, and when a large amount of rainwater flows into the rainwater precipitation section 61 (when the rainwater storage tank 1 is at the full water level H1). )
The purpose of this is to allow this rainwater to flow to the junction 12 via the bypass pipe 13.

Reference numeral 14 denotes a phon idle rotation preventing float switch. When the phon idle rotation preventing float switch 14 reaches the operation stop position F1, it stops to prevent the phon 102 from idling. After this stop, when the float switch 14 for preventing the horn idles reaches the operation return position F2, the horn 102 operates.

Reference numeral 15 denotes a road gutter, 16 denotes a secondary sediment, and 17 denotes a weight.

Next, each example of the float 7 and the float valve mechanism 70 will be described. In the examples of FIGS. 3 to 7, the float valve mechanism 70 includes a mounting plate 71 provided on the partition plate 3 (including other support members), an elevating body 72 An interlocking bracket 73 that controls the elevating body 72 to move up and down, and a movable body 74 that moves within the interlocking bracket 73.
, And a kit-type pipe 75 as main components, and the lifting and lowering body 72 rises and lowers when the float 7 moves up and down, and the movable body 74 moves through the raising and lowering of the lifting and lowering body 72 to open and close the float valve mechanism 70. valve
Open and close 70a. In addition, the interlocking bracket 73 has an interlocking plate 73b having an elongated hole 73a, and an adjusting nut 73c that determines a moving position of the interlocking plate 73b as a main component, and inside the elongated hole 73a at the moving position of the interlocking plate 73b, The movable body 74 moves. Therefore, the moving distance of the float 7 and the fixed water level H of the rainwater reservoir 1 are determined by the moving position of the interlocking plate 73b and the movable distance of the movable body 74. still,
As the float 7 moves up and down, the elevating body 72 moves up and down.
The movable body 74 moves in the elongated hole 73a of the interlocking plate 73b by opening and closing, and opens and closes the on-off valve 70a to control the supply and stop of the water in the water supply system 9. Further, the example of FIG. 9 is substantially the same as the examples of FIGS. 3 to 7 described above, but has a configuration in which a guide pipe 75 is provided via a support 77 provided on the partition plate 3. In this example, the mounting plate 71
Is omitted. The example in FIG. 10 includes a level switch 78 for an electromagnetic valve, and an electromagnetic valve 79 that opens and closes with the level switch 78. The rise and fall of the float 7 is detected by the level switch 78, and the electromagnetic valve 79 is opened and closed to supply water.
9 Water supply and stop. The configuration of the float 7 and the float valve mechanism 70 is an example. In the figure, reference numeral 102a denotes a level switch for a phone.

[0028]

According to the invention of claim 1, the rainwater storage tank is divided into a storage separation chamber and a pumping chamber through a partition plate having a communication portion,
A rainwater inflow pipe is connected to the storage / separation chamber, and a water outflow pipe is connected to the pumping chamber.A high-hose pipe is installed in the rainwater sedimentation section provided in the rainwater inflow pipe. The rainwater storage tank is provided with an inflow pipe for water supply and the water pumping chamber is provided with a water absorption pipe, and the water other than the fixed amount of water stored in the rainwater storage tank is reused. Therefore, it is possible to reuse rainwater, to release rainwater at the time of abnormalities through the pipe, prevent secondary flood damage, or to avoid damage to installed equipment due to water. There is a feature that the upper surface of the land is flat and the land can be effectively used.

According to the second aspect of the present invention, a trough portion is provided in the rainwater sedimentation section and the rainwater inflow pipe, and the suspended matter in the rainwater sedimentation section is prevented from flowing into the rainwater inflow pipe. Therefore, there are features such as avoidance of inflow of suspended matter in the rainwater tank, reduction of the number of times of cleaning the rainwater tank, and reliable inflow of rainwater.

According to a third aspect of the present invention, a valve provided in the inflow pipe is controlled via a valve control mechanism, and the valve control mechanism is provided in the rainwater storage tank. Therefore, there are the features that water supply can be reliably performed using a mechanism that operates simply and reliably, and that water supply can be performed using equipment that does not fail due to rainwater, moisture, and the like. The invention according to claim 4 is a configuration in which the upper surface of the rainwater storage tank is flat and the upper surface is used as a space for a building, a garage, a flat ground or the like. Therefore, there is a feature that the land can be effectively used by making the upper surface of the rainwater tank flat, and that the space above the rainwater tank can be effectively used.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first example of a rainwater storage tank.

FIG. 2 is a plan view showing a first example of a rainwater storage tank.

FIG. 3 is an enlarged sectional view showing a first example of the entire float valve mechanism.

FIG. 4 is an enlarged plan view showing an example of a mounting plate of the float valve mechanism.

FIG. 5 is an enlarged front view showing an example of a mounting plate of the float valve mechanism.

FIG. 6 is an enlarged front view showing a first example of an interlocking plate and an elevating body of the float valve mechanism.

FIG. 7 is an enlarged front view showing a second example of the interlocking plate and the elevating body of the float valve mechanism.

FIG. 8 is a cross-sectional view illustrating a second example of the rainwater storage tank.

FIG. 9 is an enlarged sectional view showing a second example of the entire float valve mechanism.

FIG. 10 is a cross-sectional view illustrating a third example of the rainwater storage tank.

[Explanation of symbols]

 1 Rainwater tank 2 Communication part 3 Partition plate 4 Storage separation chamber 5 Pumping room 6 Rainwater inflow pipe 60 Trough part 61 Rainwater sedimentation part 62 Vent pipe 7 Float 70 Float valve mechanism 70a Open / close valve 71 Mounting plate 72 Elevating body 73 Interlocking bracket 73a Length Hole 73b Interlocking plate 73c Adjusting nut 74 Movable body 75 Kayper type 77 Support body 78 Level switch 79 Solenoid valve 8 Inflow pipe 9 Water supply 10 Water absorption pipe 101 Filtration filter 102 Phone 102a Level switch 103 Water faucet 11 Water outflow pipe 111 Check valve 12 Junction section 13 Highway pipe 14 Float switch for preventing horn slippage 15 Road gutter 16 Secondary sedimentation section 17 Weight F1 Operation stop position F2 Operation return position H Fixed water level H1 Full water level

Claims (4)

[Claims] 1. A rainwater storage tank partitioned by a partition plate having a communicating portion into a storage separation chamber and a pumping chamber, wherein a rainwater inflow pipe is connected to the storage separation chamber, and a water outflow pipe is connected to the pumping chamber. A water pipe is provided at a rainwater sedimentation section provided on the inlet side of the rainwater inflow pipe, an outflow side of the water pipe is connected to a junction of an outflow side of the water outflow pipe, and an inflow pipe for water supply to the rainwater reservoir, and A rainwater storage tank, wherein a water suction pipe is provided in each of the pumping chambers, a fixed amount of water is stored in the rainwater storage tank, and the water other than the fixed amount of water is reused. 2. The rainwater storage tank according to claim 1, wherein a trap portion is provided in the rainwater sedimentation part and the rainwater inflow pipe, and a suspended matter in the rainwater sedimentation part does not flow into the rainwater inflow pipe. 3. The rainwater storage tank according to claim 1, wherein the valve provided in the inflow pipe is controlled via a valve control mechanism, and the valve control mechanism is provided in the rainwater storage tank. 4. The rainwater storage tank according to claim 1, wherein an upper surface of the rainwater storage tank is flat, and the upper surface is used as a space for a building, a garage, a flat ground or the like.