JPH057777U - Filter for rainwater infiltration - Google Patents

Abstract

(57) [Abstract] [Purpose] Along with being able to maintain a high filtration capacity at all times, the period of regular cleaning is extended, the workability of installation and removal is excellent, and the cleaning of the net can be done easily and quickly. Provide a filter for masturbation. [Structure] In the water collecting cylinder 41 of the rainwater infiltration basin 40, a combination of a coarse filtration basket 30 set just below the water passage cover 46 of the water collecting port 42 and a filter netting 20 set at the lower end, The filter net 20 is formed in a tubular shape with a bottom, and the upper edge of the net 21 made of synthetic fiber having a mesh smaller than the pores 45 of the perforated pipe 44 that is the rainwater permeation part is provided with a synthetic resin reinforcement frame. The funnel-shaped guide frame 28, which is an elastic body, is mounted on the reinforcing frame 24, and the outer peripheral surface is in close contact with the inner peripheral surface of the water collecting tubular portion 41, and the hook 26 is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter for rainwater infiltration basin.

[0002]

[Prior Art]

 In recent years, in urban areas and other areas, not only roads and sidewalks, but also the front yard of buildings and parking lots have become widely used, resulting in a sharp decrease in the exposed surface area. .. In addition, rainwater reuse systems are on the rise, and rainwater that falls on roofs and rooftop balconies is stored in underground water storage tanks through gutters, used for miscellaneous water, and then discharged to sewers. The amount of rainwater that penetrates underground is becoming smaller and smaller. As a result, there is a shortage of root water, which is indispensable for the growth of roadside trees, and as a result of ground subsidence associated with a decrease in groundwater, environmental problems are becoming more serious. Therefore, in order to deal with these problems, it is currently being recommended to install a rainwater infiltration pit that allows rainwater to penetrate underground.

Therefore, as a countermeasure against this, initially, a box or pipe material having a large number of pores made of concrete or synthetic resin is buried under a water collecting port provided in a drainage groove beside the road, and crushed stones around the box or pipe material. And so on. However, with this configuration, dust and mud flowed in with rainwater and clogged the boxes and pipes, reducing the permeation function and making it difficult to clear the clogs.

Therefore, in the conventional rainwater infiltration basin, a ceramic filter provided with a large number of pores is installed at the bottom of the rainwater infiltration basin to simply prevent the infiltration of contaminants such as dust and mud into the box and tubing. Instead, the filter itself can be cleaned.

[0005]

[Problems to be Solved by the Invention] By the way, like a conventional filter, which is installed at the bottom of a rainwater-infiltrating basin and is made of earthenware, leaves and debris are widely spread on the surface of the filter. In order to promote clogging and clogging, the filtration capacity deteriorated rapidly, and the periodic cleaning period had to be shortened. In addition, during cleaning work, not only is it difficult to clear the pores, but the filter is heavy, so the workability of taking out and installing is poor and it is easily damaged. There are drawbacks.

The present invention has been made against the background of such problems of the prior art, and it is possible to maintain a high filtration capacity at all times, a long period of regular cleaning, and a workability of installation / removal. It aims to provide a filter for rainwater infiltration boxes that is excellent and that can be cleaned easily and quickly.

The present invention is a combination of a coarse filtration basket set just under the water passage cover of the water collecting port and a filter netting set at the lower end in the water collecting cylinder of the rainwater infiltration basin. The tool is formed in a tubular shape with a bottom, and the upper edge of the net body made of synthetic fiber having a mesh smaller than the pores of the rainwater infiltration part is locked to a synthetic resin reinforcement frame, and the reinforcement frame is There is provided a rainwater infiltration basin filter, characterized in that an elastic funnel-shaped guide frame, the outer periphery of which is in close contact with the inner peripheral surface of the water collecting tubular portion, is mounted and a hook is attached.

[0008]

[Action]

 According to the present invention, a hook is hooked on the water collecting port of the rainwater seepage basin with the water passage lid removed to suspend the filter mesh and set it at the lower end of the water collecting cylinder. Then, after the filter basket is also set by using the water collecting port, the water passage lid is attached, and the filter setting is completed. Therefore, with the infiltration of rainwater, large foreign matters such as leaves and paper debris that gathered at the water collecting port were left on the water lid, and small pieces of small leaves and paper fragments that passed through the water lid were stopped by the filtration basket. The accumulated dust and small dirt and mud are blocked by the mesh of the filter mesh, and only the filtered rainwater is guided to the rainwater permeation part, so that the pores do not become clogged and the permeation does not occur. Function is always maintained in good condition. As for the filter cleaning, the filter basket is located directly under the water lid, so it is possible to easily inspect and clean the remaining impurities. The lightweight structure makes it easy to take out the filter mesh regularly, and cleaning is easy and quick.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to this embodiment. As shown in FIG. 1, this rainwater permeation filter 10 is composed of a filter net 20 and a filter basket 30 combined. The rainwater infiltration basin 40 is provided with a water collecting port 42 that has a stepped portion 43 on the pavement and opens, and communicates with a cylindrical water collecting cylinder 41 with a bottom and a side surface of the lower end of the water collecting cylinder 41. A perforated pipe 44 serving as a rainwater permeation part attached thereto and a water passage cover 46 detachably mounted on the water collection port part 42. A large number of pores 45 are formed in the peripheral wall of the perforated pipe 44, and a large number of crushed stones 51 are embedded in the outer surface of the peripheral wall.

The filtration net tool 20 is made of a mesh fabric made of polyester fiber and having a mesh size of 0.1 to 2.0 mm. The net body 21 is sewn into a cylindrical shape with a bottom, and a vinyl chloride resin circular shape. Is connected to the reinforcing frame 24 via a connector 25. The reinforcing frame 24 is formed on the inner surface of the water collecting tubular portion 41. The funnel type guide frame 28 is made of rubber. , And a pair of hooks 26 each having a hook 27 formed at the tip. As shown in FIG. 2, the upper edge of the net 21 is bent outward to wrap the reinforcing frame 24, and the tip of the upper edge is bent to sew the string through the string through hole 22. The net body 21 is locked by connecting both ends of the mesh and holding the reinforcing frame 24. Further, the guide frame 28 is fixed to the upper edge of the reinforcing frame 24 by a plurality of attachments 29 attached to the inner peripheral edge thereof.

As shown in FIG. 3, the filtration basket 30 is a coarse mesh in the shape of a shallow cylindrical dish, has a protrusion 32 protruding outward on the upper surface thereof, and has a support rod 31 formed in a cross shape. We are welding.

Therefore, in order to set the rainwater infiltration basin filter 10 to the rainwater infiltration basin 40, first, the water passage cover 46 is removed, and then the filter net tool 20 is held with the pair of hooks 26 in the hand. Then, the hook portion 27 of the hook 26 is hooked to the step portion 43 of the water collecting port portion 42 and suspended. Next, the filter basket 30 is set by placing the protrusion 32 of the support 31 on the step 43. Then, the water passage lid 46 is fitted into the step portion 43, and the setting of the filter 10 is completed.

Rainwater that collects in the drainage groove 50 due to rainfall flows into the water collecting tubular portion 41 through the water passage lid 46. At this time, large leaves and paper debris that have been carried into the rainwater remain on the surface of the water passage lid 46, but smaller contaminants such as leaf pieces and pieces of paper pass through the water passage lid 46 and enter the filtration basket 30 and are collected. .. The dust and mud that have passed through the filter basket 30 further fall along with the rainwater, but since the guide frame 28 is in close contact with the inner peripheral surface of the water collecting tubular portion 41 on the outer periphery thereof, It is entirely guided and flows into the net 21. Since the mesh of the net body 21 is smaller than the pores 45 of the perforated pipe 44, dust and mud contained in the filtered rainwater are discharged to the crushed stone 51 without being blocked by the pores 45. Even if it is done, it does not cause clogging, so that the infiltration capacity of the rainwater infiltration pit 40 is always kept high. Further, foreign matters such as dust and mud remaining on the net 21 are collected at the bottom of the net 21, but since the net 21 is formed into a cylindrical shape, rainwater flows out from the upper side surface of the accumulated foreign matter. Since the process proceeds to the perforated pipe 44, the period until cleaning is significantly extended as compared with the conventional example.

The cleaning of the filter 10 can be carried out appropriately because the filter basket 30 can easily remove the residual impurities by removing the water passage cover 46. When the net 21 is regularly cleaned, the filter net 30 can be cleaned. Since the tool 20 is lightweight, it can be easily taken out at once by the hook 26, and by pouring pressured water onto the net 21 that has been turned upside down, it can be cleaned quickly and completely, and there is no risk of damage.

As shown by the chain double-dashed line in FIG. 1, if a plurality of bolts 52 projecting inward are provided at the lower end portion of the water collecting tubular portion 41, the lower end of the reinforcing frame 24 is connected to these bolts. 52 may be mounted.

Although the embodiment of the present invention has been described above, the specific configuration and operation are not limited to this embodiment, and the present invention is applicable even if there is a design change within the scope of the invention. include. For example, in the embodiment, the water collecting tubular portion 41 has a cylindrical shape, but may have a rectangular tubular shape. In that case, the filtering basket 30 is formed in a rectangular shape, and the outer shape of the guide frame 28 is also square. Just make it a mold. In addition, although the net body 21 is made of polyester in the examples, it may be a net body of polyolefin such as polyethylene or polypropylene, nylon, vinyl chloride resin or the like, or a water-permeable woven or knitted fabric.

As described above, in the rainwater infiltration basin filter of the present invention, in the water collecting cylinder part of the rainwater infiltration basin, the coarse filtration cage and the lower end portion set just below the water passage cover of the water collection port The filter mesh is made into a cylindrical shape with a bottom, and the upper edge of the mesh made of synthetic fibers with a mesh smaller than the pores of the rainwater infiltration part is made of synthetic resin. The funnel-shaped guide frame of elastic body, which is in close contact with the inner peripheral surface of the water collecting cylinder part, is mounted on the reinforcing frame of the water collecting cylinder part, and the hook is attached to it so that it can be used for rainwater. Contaminants that are carried in and flow in are filtered step by step in the order of size, so that the filtration function of the filter mesh is permanently maintained, and the rainwater infiltration part is not clogged, and a high filtration capacity can always be maintained. it can. Therefore, the period of regular cleaning also becomes long. In addition, the filter is light and can be easily attached and detached, so workability is excellent, and it is possible to quickly and easily remove residual contaminants and clean the net.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a set state of a rainwater permeation filter according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the mesh body and the reinforcing frame of the rainwater permeation filter according to the embodiment of the present invention are locked.

FIG. 3 is a perspective view showing a filter basket of a filter for rainwater permeation basin according to an embodiment of the present invention.

[Explanation of symbols]

 10 Filter for rainwater infiltration box 20 Filtration mesh tool 21 Net body 24 Reinforcement frame 26 Hook 28 Guide frame 30 Filtration basket 40 Rainwater infiltration cell 41 Water collection cylinder part 42 Water collection port part 44 Perforated pipe 45 Pore 46 Water cover

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location E03F 5/10 A 8202-2D

Claims (1)

[Claims for utility model registration] [Claim 1] In the water collecting cylinder of the rainwater infiltration basin, a coarse filtration basket set just below the water passage cover of the water collecting port and a filter netting set at the lower end are combined. The filter mesh is formed in a tubular shape with a bottom, and the upper edge of the mesh body made of synthetic fibers having a mesh smaller than the pores of the rainwater infiltration part is locked to a reinforcing frame made of synthetic resin, A filter for rainwater infiltration, characterized in that an elastic funnel-shaped guide frame whose outer periphery is in close contact with the inner peripheral surface of the water collecting cylinder is mounted on the reinforcing frame, and a hook is attached.