JPH018618Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a filter used, for example, in a rainwater infiltration pipe.

[Conventional technology]

As an example of this type of filtering device, one with a configuration as shown in Fig.
−183971). In the filter device 1 shown in the figure, 2 is a cylinder, and a plurality of filters 3 are fitted into the cylinder 2, and the filters 3 are supported by support rods 4. The filter 3 is made up of a porous bottom plate 31 and an outer peripheral flange 32 surrounding the outer periphery of the bottom plate 31, and has a notch 33 formed on one side. The filter vessels 3 are stacked one on top of the other with the notch portions 33 alternately arranged, and an overflow hole 34 is defined by the inner wall of the cylinder 2 and the notch portions 33.

In the above configuration, the liquid to be treated is introduced from the upper part of the cylinder 2, most of it is received by the uppermost strainer 3, and a part is passed through the overflow hole 34 of the uppermost strainer 3 to the second stage. The liquid to be treated that has been received by the strainer 3 and the uppermost strainer 3 is filtered, and most of the liquid is passed through the overflow hole 34 of the second-stage strainer 3 to the third stage. A part of the liquid is received by the second-stage filter 3, and the liquid to be treated that is received by the second-stage filter 3 is filtered, and most of the liquid is passed through the second-stage filter 3. It is received by the fourth stage overflow vessel 3 through the overflow hole 34 of the third stage overflow vessel 3, and a portion is received by the third stage overflow vessel 3,
In this way, the liquid to be treated is subjected to multiple stages of overtreatment by a plurality of overpassers 3. In the above-mentioned filtration device, if all the overflow holes 34 of the filtration device 3 overlap, a part of the liquid to be treated will pass through without being received by any of the filtration devices 3, so all the overflow holes 34 should not overlap. In this conventional example, the overflow vessels 3 are arranged so that the overflow holes 34 are alternated.

[Problem that the invention attempts to solve]

However, in the above conventional example, there is no means for fixing the overloader 3 around the support rod 4, and the notch 3
It was difficult to position the filters 3 in the cylindrical body 2 by arranging the filters 3 alternately. If the above-mentioned positioning is incorrect or the overloader 3 rotates around the support rod 4 and the position shifts, the notch 33 of all overloader 3
When the overflow holes come to the same position, all of the overflow holes overlap, causing a problem in that a portion of the liquid to be treated is bypassed, resulting in incomplete overtreatment.

[Means for solving problems]

As a means to solve the above conventional problems, the present invention arranges a plurality of filters 3, 30 having overflow holes 34, 317 on one side so that all of the overflow holes 34, 317 do not overlap. The over-containers 3, 30 are constructed by stacking the over-containers 3, 30, and the upper portions of the over-containers 3, 30 are provided with engaging protrusions 38A, 316A.
Alternatively, engagement recesses 37A and 307A are provided,
Engagement recesses 37A, 307A or engagement protrusions 38A, 316A are provided at the lower part, and the engagement protrusions 38A, 38A, 316A of the upper row of the stacked containers 3, 30 are provided.
316A or the engagement recesses 37A, 307A are engaged with the lower engagement recesses 37A, 307A or the engagement protrusions 38A, 316A,
30.

[Effect]

The function of the present invention is as follows.

A plurality of over-containers are stacked to form an over-container, and at this time, the engaging protrusion or the engaging recess of the upper over-container is engaged with the engaging recess or the engaging protrusion of the lower-stage over-container. In this way, at the position where the engaging protrusion or the engaging recess of the upper holder is engaged with the engaging recess or the engaging protrusion of the lower holder, make sure that all of the overflow holes of the holder do not overlap. An overheating device will be placed. The engagement also prevents relative rotational movement between the upper and lower overcoats.

[Effect of idea]

Therefore, in the present invention, it is extremely easy to arrange and stack the overflow vessels so that the overflow holes of the overflow vessels do not overlap, and the relative positions of the overflow vessels are fixed in this state. There is no possibility that the overflow holes will all overlap after the overflow vessels are stacked up, and by-passing of the liquid to be treated is prevented, thereby ensuring reliable overflow.

〔Example〕

A first embodiment of the present invention is shown in FIGS. 1 to 6. In the figure, the filter 3 includes a perforated plate 31 having a large number of holes 32, an overflow hole 33 provided through a weir 33 on one side, and a central hole 35 in the center, and a perforated plate 31 surrounded by an outer periphery of the perforated plate 31. The outer peripheral flange 36 provided
and an inner peripheral flange 3 surrounded by the periphery of the central hole 35.
7, and a bottom inner peripheral flange 38 protruding from the bottom surface.
and a bottom outer circumferential flange 39, as shown in FIG. 2, an engaging recess 37A is provided at a predetermined position on the inner circumferential flange 37, and as shown in FIG. A portion 38A is formed. Further, a protrusion 31A is provided on the perforated plate 31 to prevent paper from slipping.

The paper 31B is placed in a corrugated manner on a perforated plate 31, and the protrusions 31A are used to prevent the paper 31B from slipping. 37 and the inner peripheral flange 36 of the lower casing 3
At the same time, the bottom outer peripheral flange 38 of the upper holder 3 is fitted into the outer periphery flange 39 of the lower holder 3. In this way, the upper and lower overflow vessels 3 are stacked such that their respective overflow holes 34 are alternated. When a plurality of filters 3 are stacked, a granular activated carbon layer 51 and an ion exchange resin layer 52 are provided inside the bottom outer peripheral flange 38 of the lowest filter 3, as shown in FIG. The upper edge of the lower tube 5 which has a hole 53 and a center hole 54 is fitted, and the uppermost tube 3 has a communication hole 3B and a gasket 3C on the periphery of the lower surface.
A support rod 4 is passed through the center hole 35 of the stacked container 3 and the center hole 54 of the lower tube 5, and the top and bottom of the support rod 4 are fitted with nuts 41, 41. Tighten by.

As described above, the filter device 1 as shown in FIG. 6 is assembled. When the liquid to be treated is introduced from the upper part of the filter device 1, most of it is received by the uppermost filter device 3, and some of it is directly or overflows the weir 33 to the overflow hole 3 of the uppermost filter 3
The liquid to be treated is received by the second stage filter 3 through the paper 31B, and the liquid to be treated that is received by the top stage filter 3 is passed through the paper 31B, and a part of the liquid is transferred to the second stage filter 3. The water is received by the third stage overflow vessel 3 through the overflow hole 34 of the vessel 3, and the rest is received by the second stage overflow vessel 3,
The liquid to be treated received in the second-stage strainer 3 and a part of the liquid in the uppermost strainer 3 overflow the weir 33 and are received in the third-stage strainer 3 through the overflow hole 34. The rest is passed through the paper 31B, a part of the liquid is received in the fourth stage strainer 3 via the overflow hole 34 of the third stage strainer 3, and the rest is passed through the third stage strainer 3. The liquid to be treated is received by the filter 3, and thus undergoes multiple stages of overtreatment by the plurality of filters 3. The liquid to be treated is then transferred to the lower cylinder 5.
In the granular activated carbon layer 51 and the ion exchange resin layer 5
2, undergoes decolorization, deodorization, and deionization treatment and exits through the communication hole 53.

7 to 10 show a second embodiment of the present invention. In the figure, the filter vessel 30 is divided into an upper vessel 30A and a lower vessel 30B, and the upper vessel 30A has a large number of holes 301, an overflow hole 304 provided through a weir 303 on one side, and a liquid hole in the center. 305, an outer flange 306 surrounded by the periphery of the perforated plate 304 and having an engagement protrusion 306A formed on the lower surface, an inner flange 307 surrounded by the periphery of the liquid hole 305, As shown in FIG. 9, the inner flange 307 has an engaging recess 3 at a predetermined position.
07A is provided. As shown in FIG. 8, the lower vessel 30B includes a bottom plate 312 having an overflow hole 310 provided through a weir 309 on one side and a liquid hole 311 in the center, and a bottom plate 312 surrounded on the outer periphery of the bottom plate 312 on the top surface. An outer peripheral flange 313 in which an engagement hole 313A is formed, and a communication hole 314 at the periphery of the liquid hole 311.
It consists of a shielding plate 314 erected through A, and a bottom outer circumferential flange 315 and a bottom inner circumferential flange 316 protruding from the bottom surface, and the bottom inner circumferential flange 316 has a predetermined position as shown in FIG. An engaging convex portion 316A is provided at.

In the above container 30, the upper container 30A is connected to the lower container 3.
Overflow holes 304, 310 of the upper container 30A and lower container 30B are overlapped with 0B by engaging the engagement protrusion 306A of the upper container 30A with the engagement hole 313A of the lower container 30B.
are overlapped to form one overflow hole 317. Then, the paper 301B folded into a corrugated shape is placed on the perforated plate 301, and then a plurality of overcoats 30 are stacked.
Engagement convex portion 316A of bottom inner peripheral flange 316 of 0
and the engagement recess 307A of the inner flange 307 of the lower sieve 30, and the bottom outer flange 315 of the upper sieve 30 is fitted into the outer flange 313 of the lower sieve 30. In this way, the upper and lower overflow vessels 30 and 30 are stacked such that their respective overflow holes 317 are alternated.

In this embodiment, a liquid passage 3 having a guide hole portion 314A formed by an inner circumferential flange 307, a liquid hole 311, and a shielding plate 314 of a plurality of stacked containers 30 is used.
18 is formed, and the liquid passed through the paper 3A enters the liquid passage 318 from the communication hole portion 314A and flows down. As described above, in this embodiment, the liquid to be treated and the liquid are completely separated, so the amount of treatment decreases as you go to the lower stage. The overefficiency is improved compared to the previous embodiment in which it does not decrease even though it reaches .

In the present invention, in addition to the embodiments described above, for example, the engagement protrusion may be provided on the inner flange side and the engagement recess may be provided on the bottom inner flange side, or the engagement protrusion and the engagement recess may be provided on the inner flange side. Alternatively, it may be provided at a portion other than the bottom inner flange, for example, the outer flange or the bottom outer flange. Also, the overflow holes do not necessarily need to be alternated for each overflow unit, but may be alternated in units of two or three, or only one of the overflow units can be arranged so that it does not overlap with other overflow holes. It's okay. Furthermore, if the perforated plate itself is made of a perforated plate such as a sintered plate, paper is not necessary and the plate itself becomes a material.

FIG. 11 and FIG. 12 show the overpass device 1 of the present invention.
The case where this is applied to a rainwater infiltration pipe system is shown. In this case, as shown in FIG.
is inserted into the outer cylinder 2 in a cassette style. As shown in FIG. 12, a socket 61 is provided at the upper end of the outer cylinder 2.
The T-shaped pipe joint 6 having 62 and 63 is the lower end socket 6.
1, and the lower end of a repair pipe 7 is connected to the T-shaped pipe joint 6 via an upper end socket 62. Inside the repair pipe 7, a handle rod 42 having a handle 42A formed at its upper end is connected. is inserted, and the lower end of the handle rod 42 is connected to the support rod 4 of the filter 1 within the T-shaped pipe joint 6. A lid 71 is attached to the upper end of the repair pipe 7, and a repair port 7 opens to the ground through the lid 73.
2 is in contact. Further, one end of a side pipe 8 is connected to the T-shaped pipe joint 6 through a side socket 63, and the other end of the side pipe 8 is opened to the side gutter 9 through a mesh 81.
A lid 91 is attached to the side gutter 9, and an overflow pipe 9 is attached to the side wall.
2 will contact you. Note that a handle 81A for attachment and detachment is attached to the screen 81. On the other hand, a perforated pipe 10 having a large number of holes 12 communicates with the lower end of the tube 1 through a socket 11 .

In the above-mentioned rainwater infiltration pipe system, rainwater accumulated in the side gutter 9 is introduced into the side pipe 8 after over-removal of large debris by the filter screen 81, and further introduced into the filter unit 1 via the T-shaped pipe joint 6. As described above, the paper 3A of the plurality of perforated plates 3 undergoes multiple stages of overtreatment, is further treated with the activated carbon layer 51 and the ion exchange resin layer 52, and is then passed through the socket 11. It is introduced into the hole pipe 10 and penetrates into the soil through the hole 12. If desired, the perforated pipe 10 is surrounded by a plastic sheet 13 to guide rainwater that has permeated into the soil. When cleaning the filter container 1, open the lid 73 and the lid 71 and use the handle bar 42.
The filter 1 is pulled out from the outer cylinder 2 and taken out to the ground via the repair pipe 7.

[Brief explanation of the drawing]

Figures 1 to 6 show the first embodiment of the present invention, in which Figure 1 is a side sectional view of the filter, Figure 2 is a perspective view of a portion of the inner flange of the filter, and Figure 3 is a partial perspective view of the inner flange of the filter. FIG. 4 is a bottom view of the container, FIG. 5 is a plan view of the container, FIG. 6 is a partially omitted side sectional view of the container, and FIGS. 7 to 10 are views of the present invention. Fig. 7 is a side sectional view of the upper case, Fig. 8 is a perspective view of the lower case, Fig. 9 is a partial perspective view of the inner flange, and Fig. 10 is a bottom inner flange. Partial perspective views, Figures 11 and 12 show application examples, Figure 11 is a cutaway partial perspective view with the outer cylinder fitted, Figure 12 is a diagram of the rainwater infiltration pipe system, and Figure 13. FIG. 2 is a perspective view of a cutaway portion of a conventional example. In the figure, 1... over device, 3, 30... over device,
34, 317... Overflow hole, 37, 307... Inner peripheral flange, 37A, 307A... Engagement recess, 3
8,316... Bottom inner flange, 38A, 31
6A...Engagement convex portion.

Claims (1)

[Scope of utility model registration request] It is an over-container constructed by stacking a plurality of over-containers each having an overflow hole on one side so that all of the overflow holes do not overlap, and the top of the over-container is An engaging convex part or an engaging concave part is provided, and an engaging concave part or an engaging convex part is provided at the lower part, so that the engaging convex part or the engaging concave part of the upper layer of the stacked containers is engaged with the lower one. A coupling device characterized in that it is engaged with a recess or an engagement protrusion.