JP2556429B2 - Intake device for rainwater utilization equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water intake device for rainwater utilization equipment.

[0002]

2. Description of the Related Art It has been practiced for a long time to collect rainwater for use as miscellaneous water, but a large roof such as a dome is suitable for collecting rainwater, and the water collected here is used as daily miscellaneous water. It is being used.

Such rainwater intake is usually carried out through a rainwater intake tank 1 as shown in FIGS. 6 and 7, and the rainwater intake tank 1 is laid at a required gradient from a building or site. The rainwater introducing pipe 2 is connected to and opened, and an introducing tank 3 and an intake tank 4 that takes in water from the introducing tank and sends the water to a rainwater storage tank (not shown). In the figure, 9 is a water pipe to the rainwater storage tank, and 10 is a submersible pump.

The introduction tank 3 and the intake tank 4 are the rainwater intake tank 1
It is formed by partitioning the inside with a partition wall 5, and as shown in FIG. Or
The submersible pump 8 is attached to the intake portion of the introduction tank 3. An overflow pipe 11 is connected to the introduction tank 3, and the overflow pipe 11 is laid from the introduction tank 3 to the discharge destination at the same level as or lower than the rainwater introduction pipe 2.

In this way, rainwater is generally taken by opening and closing the intake valve 7 and operating the submersible pump 8 to send water from the introduction tank 3 to the intake tank 4.

The control is performed by the water level of the rainwater storage tank, but in order to exclude the contamination of the roof and the rainwater pipe line at the beginning of rainfall, the water intake is stopped regardless of the water level of the rainwater storage tank.
The introduction tank 3 also functions as a sand settling tank.

[0007]

The water intake by the water intake valve 7 as shown in FIG. 6 may cause a valve closing disorder due to rainwater contamination. Moreover, in order to ensure proper operation of the pump, it is desirable that the water intake by the submersible pump 8 as shown in FIG. This contradicts that the capacity of the introduction tank 3 should be small in order to stop water intake (release) at the beginning of rainfall.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, and to control the intake water from the introduction tank into the intake tank without using a valve or a pump so that rainwater with less contamination can be taken in as much as possible. It is to provide a water intake device for utilization equipment.

[0009]

In order to achieve the above object, the present invention provides a rainwater intake tank comprising an introduction tank connected to a rainwater introduction pipe and an intake tank for taking in water from the introduction tank. Connecting the intake pipe trough to the water tank with a flexible tube that can expand and contract in the vertical direction and connecting it to an elevating device, and connecting a rain gauge to the elevating device via a control panel. Is the gist.

[0010]

According to the present invention as set forth in claim 1, the tip portion of the intake trough is a flexible tube having a stroke capable of moving the overflow edge level up and down around the tube bottom level of the overflow tube. When the overflow edge level is lower than the bottom of the overflow pipe, the rainwater that has flowed into the introduction tank from the rainwater introduction pipe flows over the overflow edge of the intake trough and flows into the intake tank by driving up and down with the lifting device.

On the other hand, when the overflow edge level is higher than the bottom of the overflow pipe, the overflow pipe is discharged to stop the intake of water.

According to the second aspect of the present invention, in addition to the above action, the water intake is stopped in the early stage of rainfall, and the lifting device is driven when the set rain amount is measured by the rain gauge, and the water intake is performed. The overflow edge of the trough drops and water intake begins.

Further, when the set rainfall amount is not reached within the set time, the weighing up to that time is cleared. In addition, when the rainfall cannot be measured over a certain set time, the overflow edge level is raised and water intake is stopped.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows a water intake device 1 for rainwater utilization equipment according to the present invention.
In the longitudinal side view showing the embodiment, the same components as those in FIGS. 6 and 7 showing the conventional example are designated by the same reference numerals.

The water intake device of the present invention is also the same as the conventional example.
The inside of the rainwater intake tank 1 is divided by a partition wall 5 into an introduction tank 3 and a water intake tank 4 for taking in water from the introduction tank 3.

Of these, the introduction tank 3 has a rainwater introduction pipe 2 laid at a required gradient from a building or site, and the rainwater introduction pipe 2
An overflow pipe 11 laid from the introduction tank 3 to the discharge destination is connected at the same level or lower level.

Further, a water supply pipe 9 for sending water to a rainwater storage tank (not shown) is provided in the water intake tank 4, and an underwater pump 10 is provided at an end of the water supply pipe 9.

Although the above is the same as the above-mentioned conventional example, the present invention provides an intake trough 12 penetrating the partition wall 5 from the introduction tank 3 to the intake tank 4. The bellows tube 13 is configured as a flexible tube that can be expanded and contracted in the direction, and the front end opening of the bellows tube 13, that is, the overflow edge 13a is directed upward.

Further, the vicinity of the overflow edge 13a of the bellows tube 13 was connected to a lifting device 14, and a rain gauge 16 was connected to the lifting device 14 via a control panel 15.

2 and 3 show details of the lifting device 14,
A base 17 is provided on an upper surface of the upper floor plate of the rainwater intake tank 1, and is installed on the base 17. The screw jack 18 has a rod 18a hanging down and a motor 20 with a reduction gear connected to the screw jack 18 by a coupling 19.

On the other hand, the overflowing edge 13a of the bellows tube 13 is shown in FIG.
An arm is crossed over a flat plate ring as shown in Fig. 4, and a bellows receiving metal fitting 21 having a core provided at an intersecting portion of the arm as a penetrating joint portion at the lower end of the rod 18a is fixed to the flat plate ring by bolts and nuts. Install.

As shown in FIG. 5, a guide rod 23 having an upper end on the base 17 and a lower end bolted to the outer periphery of the fixed pipe 22 at the lower end of the water trough 12 is guided along the bellows pipe 13 to form the bellows pipe 13.
Guide ring 24 that takes in this guide rod 23 from the side of
Was set up.

Next, the usage will be described. In the early stage of rainfall, the water intake is stopped, and the tip opening of the bellows tube 13 at the tip of the intake trough 12, that is, the overflow edge 13a is located at a position higher than the bottom of the overflow tube 11 with the bellows tube 13 extended. As a result, the rainwater poured into the introduction tank 3 from the rainwater introduction pipe 2 accumulates in the introduction tank 3 and the water level rises, but a certain amount or more is discharged to the overflow pipe 11.

When the set rain amount is measured by the rain gauge 16, the lifting device 14 is driven by the output from the rain gauge 16 via the control panel 15, and the rod of the screw jack 18 is driven.
18a is lowered, whereby the bellows tube 13 is also contracted and the overflow edge 13a is lowered. The overflow edge 13a is the overflow pipe 11
If it becomes lower than the bottom of the pipe, the rainwater that has flowed into the introduction tank 3 will flow into the water intake tank 4 over the overflow edge 13a of the water intake trough 12.

As a result, the water intake is started, and the water in the water intake tank 4 is sent by the submersible pump 10 through the water supply pipe 9 to the rainwater storage tank.

When the amount of rain measured by the rain gauge 16 does not reach the set amount of rain within the set time, the weighing up to that time is cleared.

[0027]

As described above, the water intake device for rainwater utilization equipment of the present invention is a rainwater intake tank comprising an introduction tank to which a rainwater introduction pipe is connected and an intake tank for taking in water from this introduction tank. It is possible to control as much rainwater as possible with a small amount of dirt, without using a valve or pump to take it into the water intake tank.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a water intake device for rainwater utilization equipment of the present invention.

FIG. 2 is a vertical sectional side view of a main part of the water intake device of the rainwater utilization facility of the present invention.

FIG. 3 is a plan view of a main part of the water intake device of the rainwater utilization facility of the present invention.

FIG. 4 is a plan view of a bellows receiving fitting.

FIG. 5 is a vertical sectional side view of an upper end connecting portion of the guide rod.

FIG. 6 is a vertical sectional side view showing a conventional example.

FIG. 7 is a vertical sectional side view showing another conventional example.

[Explanation of symbols]

 1 ... Rainwater intake tank 2 ... Rainwater introduction pipe 3 ... Introduction tank 4 ... Intake tank 5 ... Partition wall 6 ... Water pipe 7 ... Water intake valve 8 ... Submersible pump 9 ... Water pipe 10 ... Submersible pump 11 ... Overflow pipe 12 ... Water intake trough 13 ... Bellows tube 13a ... Overflow edge 14 ... Lifting device 15 ... Control panel 16 ... Rain gauge 17 ... Base 18 ... Screw jack 18a ... Rod 19 ... Coupling 20 ... Motor 21 ... Bellows receiving bracket 22 ... Fixed tube 23 ... Guide rod 24 ... Guide ring

Claims (2)

(57) [Claims] 1. A rainwater intake tank comprising an introduction tank to which a rainwater introduction pipe is connected and an intake tank for taking in water from this introduction tank, wherein the tip portion of the intake trough from the introduction tank to the intake tank is vertically expandable and contractible. Intake device for rainwater utilization equipment, which is composed of a flexible tube and is connected to a lifting device. 2. The water intake device for rainwater utilization equipment according to claim 1, wherein a rain gauge is connected to the lifting device via a control panel.