JP2011137299A - Rainwater intake device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rainwater intake device from which foreign matter can be easily removed, which is simple in structure, and which can be easily attached to a downpipe for an existing roof or the like by solving problems of an existing rainwater intake device wherein refuses and bird dropping adhered to the surface of a roof or the like are contained in the rainwater at the beginning of the fall and the intake of clean rainwater by eliminating the rainwater at the beginning of the fall is requested, and the collection of rainwater may be obstructed by the intrusion of leaves and large foreign matter accumulated on a roof or the like and in a gutter into the device. <P>SOLUTION: This rainwater intake device includes a downward projecting gutter-shaped rainwater guide which receives all rainwater in a downpipe, collects the rainwater near the centerline, and stabilizes the water flow and a water receiving wall which is separated from the rainwater guide in the horizonal and vertical directions. The rainwater at the beginning of the fall with small volume flushing out of the lower front end of the guide does not reach the water receiving wall and is discharged to the lower downpipe, and the clean rainwater with large volume and high water power is taken beyond the water receiving wall. The rainwater intake device further includes a cover for cleaning the rainwater guide and the water receiving wall and a cylindrical member allowed to slide to be easily attached to the existing downpipe. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an apparatus that removes initial rainwater contaminated with foreign matter such as a roof surface of a building and takes in rainwater of high quality.

  The rainwater that falls from the sky is essentially clean, and it is useful from the viewpoint of the utilization of water resources to collect and use rainwater for car wash water, garden trees and watering on the roadside.

As a method of collecting rainwater, it is practical to install a device on a vertical fence from the roof of a building. However, in the initial rainwater when it starts to rain, garbage and bird droppings attached to the surface of the roof etc. There is a problem that foreign matters such as the above are included, and it is required to remove the initial rainwater at the beginning of the fall and take in clean rainwater.

In addition, leaves and large foreign matter collected on the roof, rain gutter, etc. enter the device and prevent the rainwater from being collected, so it is difficult for foreign matter to stay in the device, and removal of the foreign matter that has entered is required. .

Furthermore, it is required that it can be easily attached to and detached from an existing downspout, and if necessary, it is easy to clean filth such as bird droppings that are deposited inside such as washing with water.

“Rainwater storage device” (Patent Document 1), “Rainwater utilization device” (Patent Document 2), “Initial rainwater removal device and rainwater storage system using it” (Patent Document 3) and the like have been proposed. However, in all cases, the structure of the apparatus is complicated, foreign substances are likely to stay in the apparatus, and the apparatus becomes a sealed structure while the apparatus is in use. There are drawbacks such as that it cannot be easily removed, and that it is not easy to attach to and remove from an existing downspout and to clean the inside.

The shunt in Japanese Patent Publication No. 2001-123484 is composed of a number of functional parts such as a diverting convex part, a rectifying convex part, a guiding convex part, an auxiliary convex part, an overflow part, and a vertical rod-like auxiliary convex part of the overflow part. The device structure is complicated. In addition, since the diverting convex part and the water collection channel are close to each other in the horizontal direction, it is uncertain to selectively exclude the initial rainwater from the drainage channel. It is. Furthermore, since the device and the heel have a sealed structure when attached to the vertical fold, it is difficult to inspect and remove foreign matters such as fallen leaves and to clean the inside. In the rainwater utilization device in Japanese Patent Publication No. 2006-226085, there is a risk that germs may propagate by attaching bird droppings to the water retention substance. In addition, it is difficult to discharge foreign matter such as fallen leaves, and it is difficult to check and remove foreign matter and clean the inside when it is attached to a vertical gutter and used in a sealed structure. The initial rainwater removal device in Japanese Patent Publication No. 2009-121217 has a complicated structure, and the size of the initial rainwater drainage hole is structurally limited. Is unstable. In addition, the device has a hermetically sealed structure when used on a vertical shaft, and it is difficult to remove and clean foreign matter such as initial rainwater drainage holes inside the device.

It is to selectively remove the initial rainwater and to take clean rainwater.

  This is a simple structure in which foreign substances such as fallen leaves are less likely to stay inside the apparatus.

  It is easy to inspect, remove and clean foreign matter inside the device while it is in use.

  It can be easily attached to and detached from an existing downspout.

  The intake device has a structure in which a trapezoidal rainwater guide is provided between a water intake channel and a drainage channel arranged on a straight line, and a water receiving wall and a rainwater intake port are provided on the side.

The rainwater guide is inclined downward toward the receiving wall, and the position of the tip of the lower part is extended further to the receiving wall side at a horizontal distance than the position closest to the receiving wall of the waterway. I received it with only one rainwater guide. The lower end of the rainwater guide is positioned higher than the upper end of the water receiving wall, and is located between the position closest to the upper end of the water receiving wall and the upper end of the water receiving wall at a horizontal distance.

By collecting and flowing rainwater in the vicinity of the rainwater guide center line with the shape of the rainwater guide projecting downward, the water flow on the rainwater guide is stabilized, and the momentum of the water jumping out from the tip of the rainwater guide is strengthened.

  Since the momentum of the water that jumps out from the tip of the rainwater guide increases, the horizontal distance between the tip of the rainwater guide and the upper end of the water receiving wall can be sufficiently separated.

Clean rainwater with a lot of rain jumps out from the tip of the rainwater guide and jumps over the receiving wall, and the initial rainwater with a small amount of rain has a weak momentum to jump out from the tip of the rainwater guide, so the rainwater guide cannot It is surely excluded from between the tip and the receiving wall.

Since the distance between the rainwater guide tip and the water receiving wall is sufficiently separated, the space between the rainwater guide tip and the water receiving wall serves as a discharge path for foreign matter such as fallen leaves and overflows of heavy rain and rainwater when stopping water intake Functions as a drainage channel.

  By providing a lid at a position where the rainwater guide and the water receiving wall can be easily accessed, foreign substances inside the apparatus can be inspected while the apparatus is in use, and foreign substances can be easily removed and cleaned.

  A cylindrical piece that slides outside the vertical gutter is inserted into the upper portion of the apparatus main body, and the lower end of the apparatus is fitted into the inner side of the vertical gutter so that it can be easily attached to and detached from the existing vertical gutter.

  The structure of the device is simplified by receiving all rainwater from the downpipe directly with only one rainwater guide, and the rainwater intake device can be provided at a low cost by making the production easier.

By collecting and flowing rainwater near the rainwater guide center line, the flow of water was stabilized and the momentum of the water jumping out from the rainwater guide tip increased, so the horizontal distance between the rainwater guide tip and the receiving wall could be sufficiently separated.

  Clean rainwater with a lot of rain jumps out from the tip of the rainwater guide and jumps over the receiving wall, and the initial rainwater with a small amount of rain is weak enough to jump out from the tip of the rainwater guide, so it does not cross the receiving wall and is sufficiently horizontal It is now reliably excluded from between the rainwater guide tip and the water receiving wall at a distance.

  Since the distance between the rainwater guide tip and the top of the water receiving wall was sufficiently separated, the space between the rainwater guide tip and the water receiving wall is a drainage path for foreign matter such as fallen leaves and overflow drainage of rainwater when heavy rain or water intake is stopped. Served as a road.

  By installing a lid that allows easy removal and cleaning of foreign substances while inspecting foreign substances while the equipment is in use, it is easy to access the rainwater guide and water receiving wall, ensuring that the function of the rainwater intake system is maintained. It was.

  A cylindrical piece that slides outside the vertical gutter is inserted into the upper part of the main body of the device, and the lower end of the device is fitted inside the vertical gutter, so that the rainwater intake device can be replaced with the existing vertical gutter by sliding the cylindrical piece. Easy to attach and detach.

FIG. 1 is an explanatory view showing a method of carrying out the invention. Example 1 FIG. 2 is an explanatory view showing a cross-section at the center of the inside of the method for carrying out the invention. Example 1 FIG. 3 is an explanatory diagram viewed from above in the AA portion of FIG. Example 1 FIG. 4 is an explanatory diagram viewed from the side along the line BB in FIG. 2 in the method of carrying out the invention. Example 1 FIG. 5 is an explanatory view showing the shape of the rainwater guide in the method of carrying out the invention. Example 1 FIG. 6 is an explanatory view showing the flow of water on the rainwater guide in the method of carrying out the invention. Example 1 FIG. 7 is an explanatory view showing the flow of initial rainwater in the method of carrying out the invention. Example 1 FIG. 8 is an explanatory view showing the flow of normal rainwater in the method of carrying out the invention. Example 1 FIG. 9 is an explanatory diagram showing the flow of heavy rain water in the method of carrying out the invention. Example 1

All rainwater from the downpipe is received directly by only one rainwater guide, and the water flow is stabilized by collecting and flowing near the rainwater guide center line, and the initial momentum of water jumping out from the tip of the rainwater guide is weak Rainwater was selectively excluded between the rainwater guide tip and the receiving wall. By providing a lid, the inside can be easily cleaned, and by providing a sliding cylindrical piece, it can be easily attached to and detached from an existing downspout.

1 and 2 are embodiments of the invention, wherein 1 is a main body of a rainwater intake device molded from resin, 2 is a lid for inspection and cleaning, and 3 is intake of clean rainwater taken. The mouth. Reference numeral 4 denotes a cylindrical piece that slides up and down to easily attach and detach the main body to and from an existing downspout. Reference numerals 5 and 6 denote upper and lower portions of the downcut to install the main body. After the 4 cylindrical pieces are slid upward with the upper vertical shaft in the middle, the lower portion of the main body 1 is fitted into the lower vertical rod, and then the 4 cylindrical pieces are slid downward to be inserted into the apparatus main body. The device can be mounted on the downside. Further, the device can be removed by sliding the cylindrical piece 4 upward, releasing the fitting with the device main body, and lifting the main body 1 upward.

FIG. 2 shows an internal structure example, and 1 to 6 are the same as those in FIG. Reference numeral 7 denotes a rainwater guide having a convex shape that receives rainwater from a vertical fence, and 8 is a water receiving wall. By extending the lower end of the rainwater guide at a horizontal distance from the position closest to the water receiving wall of the waterway to the water receiving wall side, all rainwater in the vertical line is received by only one rainwater guide. AA in the figure is the position seen from above in the cross section shown in FIG. B-B in the figure is the position seen from the side in the cross section shown in FIG.

3 is a cross section seen from above at the position AA in FIG. 2, and 1-4, 7, and 8 are the same as those in FIG. The rainwater guide 7 is inclined downward toward the water receiving wall 8 and the bottom end position of the rainwater guide is horizontal at the most receiving wall of the waterway so as to receive all rainwater from the vertical fence. It is located between the close position and the upper end of the receiving wall.

  FIG. 4 is a cross-sectional view taken from the side at the position B-B in FIG. The rainwater guide in the shape of a ridge that protrudes downward 7 is inclined downward toward the water receiving wall 8, and the lower tip position is located above the upper end of the water receiving wall.

  FIG. 5 shows an example of the shape of the rainwater guide, which is a ridge shape convex downward. 7 is the same as FIG.

  FIG. 6 shows the state of rainwater on the rainwater guide, and shows that the rainwater collects along the center line of the guide to form a stable water flow.

  By forming a rainwater guide having a convex bowl shape on the lower side, the water flow on the rainwater guide is stabilized, so that a horizontal distance can be separated between the lower end of the rainwater guide 7 and the upper end of the water receiving wall 8. By ensuring a horizontal distance between the rainwater guide and the water receiving wall, the initial rainwater is selectively removed with certainty. In addition, since the rainwater guide and the water receiving wall are sufficiently separated, foreign matter such as fallen leaves is less likely to stay inside the apparatus.

  FIG. 7 shows how the initial rainwater flows, and shows that rainwater cannot be passed over the water receiving wall and is eliminated by the vertical downpipe because the amount of water is small and the momentum to jump out of the rainwater guide is weak. .

  FIG. 8 shows a state in which normal rainwater flows, and shows that since the amount of water is sufficient, the momentum of jumping out from the rainwater guide is strong and rainwater is taken from the clean rainwater intake through the receiving wall.

  Fig. 9 shows how the rainwater flows during heavy rain. When the amount of water exceeds the amount that can be taken from the intake port of clean rainwater, excess water overflows from the receiving wall and is discharged to the lower vertical shaft. It is shown that.

  The fallen leaves and large foreign matter that have entered the water intake from the downpile are easily discharged to the downpile because the rainwater guide and the receiving wall are sufficiently separated, and the interior can be easily inspected by the 2 lids. It can be removed and cleaned, making daily maintenance easy.

  The use of rainwater for low-needed applications such as watering gardens and roads, washing cars, etc. is not only effective use of water resources, but is also very useful as a measure to stop water in the event of an earthquake or other disaster. .

By selectively taking in and using clean rainwater that falls on the roofs of public facilities such as schools as well as the roofs of detached houses and apartment buildings, it is possible to save inexhaustible tap water resources. In addition, temporarily storing rainwater in a tank, etc., will lead to peak cuts in drainage facilities in urban areas, which will help reduce facility capacity and ensure stable operation of facilities. Furthermore, it can be applied to secure water that is indispensable for civic life, especially toilets, as a supplement to water outages in times of disaster such as earthquakes.

1 Main body of rainwater intake device 2 Cover for inspection and cleaning 3 Water intake for clean rainwater 4 Cylindrical piece to slide 5 Vertical gutter (upper part)
6 Downspout (bottom)
7 A rainwater guide with a bowl shape protruding downward 8 Receiving wall

Claims (3)

  The water intake and drainage channels are arranged in a straight line, and a water receiving wall and a rainwater outlet are provided on the sides. A rainwater intake device that is provided with an inclination and is located between a position where the lower end position of the rainwater guide is higher than the upper end of the water receiving wall and a horizontal distance closest to the upper end of the water receiving wall and the upper end of the water receiving wall. The rainwater intake apparatus according to claim 1, further comprising a lid capable of inspecting the inside, removing foreign substances, and cleaning. The rainwater intake apparatus according to claim 1, wherein the cylindrical piece is detachably attached to and detached from the vertical gutter.

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