JPH0235907Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a filter.

[Prior Art] Conventionally, as a filter installed in a pipe between a rainwater basin and a rainwater infiltration part, for example,
There is a filter described in Japanese Patent No. 53882, and the filter has a configuration shown in FIG. This filter 10 is
It can be inserted and supported in a conduit 11 with the upper side serving as a rainwater basin and the lower side serving as a rainwater infiltration part side. That is, this conduit 11 extends in the vertical direction, and the filter 10 is inserted from the upper side of the conduit 11 in the direction of arrow A, and can be supported by a protrusion 12 formed on the inner surface of the conduit 11. Ru.

This filter 10 includes a bottomed cylindrical body 13 that is inserted into a pipe line 11, and a support piece 14 on the top of the cylindrical body 13 for supporting the filter 10 on the protrusion 12.
will be provided. At the top of the cylindrical body 13, there is a cylindrical body 13.
A rainwater inlet 15 that allows rainwater to flow in the direction of arrow A is formed inside. Further, a plurality of rainwater outflow holes 16 are formed in the peripheral wall of the cylindrical body 13 and penetrate through both the inner and outer portions of the cylindrical body 13 . Furthermore, the cylindrical body 1
3, a filter 17 is inserted and supported. That is, the filter 17 also has a cylindrical shape as a whole so that it can be inserted into the cylindrical body 13.
7 is inserted from the rainwater inlet 15 in the direction of arrow A. The bottom of the filter 17 inserted into the cylindrical body 13 can be supported by a protrusion 18 formed on the inner circumferential wall of the cylindrical body 13 .

The filter 17, which has a cylindrical shape as a whole, has an inner cylindrical tube 19 at its center and filter media 20A and 20B attached to the periphery thereof. That is, the inner tube 19 is provided with flange portions 21 on the upper and lower sides thereof, and each of the filter media 20A and 20B has its upper and lower portions supported by the respective flange portions 21. Further, a ring member 23 having a fitting 22 is fixed to the upper part of the flange portion 21 on the upper side of the inner cylindrical tube 19, and a sealing member 24 that is in close contact with the inner wall surface of the cylindrical body 13 is fixed.

A filter 17 inserted into the cylindrical body 13 allows rainwater flowing in the direction of arrow A from both water inlets 15 to be introduced into the hollow portion of the inner cylindrical pipe 19. Inner tube 1
Rainwater introduced into the hollow part 9 passes through the water permeable hole 25 formed in the peripheral wall of the inner cylindrical pipe 19 from the hollow part. Further, the rainwater is transmitted through each filter medium 20A, 20B in the direction of arrow B. Each filter material 20A, 20B
The rainwater that has passed through is drained to the outside of the cylindrical body 13 through the rainwater outflow hole 16. On the other hand, heavy metals, earth and sand contained in the rainwater introduced into the hollow part of the inner cylindrical pipe 19 are collected in a settling part 26 provided at the inner bottom of the cylindrical body 13.
and is precipitated. In this way, the rainwater flowing in from the rainwater inlet 15 has heavy metals, sediment, etc. removed by precipitation, and the filter media 20A, 20
B is passed through and filtered. The filtered rainwater flowing out from each rainwater outflow hole 16 is transferred to the pipe 1
1 will flow down toward the rainwater infiltration part in the direction of arrow C.

After the filter 10 having the above configuration is used for a certain period of time, it is removed from the pipe line 11 and the inside thereof is cleaned. The filter 10 has a handle 27 attached to the upper part.
is taken out from the conduit 11 in a state where it is lifted from the ground side. Filter 10 further lifted to the ground surface
In this case, the filter 17 is pulled out while the handle 22 is pulled up from inside the cylindrical body 13. In this state, sediments such as heavy metals and earth and sand accumulated in the sedimentation section 26 are removed, and each filter medium 20A of the filter 17,
Dust and mud adhering to 20B and the inner cylinder pipe 19 are washed off. After cleaning the inside of the filter 17 and the cylindrical body 13 in this way, the filter 1
7 is again inserted into the cylindrical body 13 and supported. The filter 10 that has been cleaned is again suspended into the pipe line 11 and supported by the protrusions 12.

[Problems to be solved by the invention] In the conventional filter 10 as described above, the filter 17 was simply inserted and supported from the rainwater inlet 15 in the direction of arrow A, so that the rainwater flow was prevented. Dust, mud, etc. contained in rainwater flowing in from the inlet 15 are likely to accumulate on the upper peripheral edge of the filter 17. In particular, if dirt, mud, etc. accumulate between the upper peripheral edge of the filter 17 and the inner surface of the cylindrical body 13, it will be removed from the cylindrical body 13 to the filter 1 during cleaning.
7 was difficult to pull out and was considered to be time-consuming to clean. Further, accumulated dirt, mud, etc. entered between the peripheral edge of the filter 17 and the inner surface of the cylindrical body 13 and became clogged, making it difficult to pull out the filter 17 as well.

The purpose of the present invention is to make it possible to easily pull out the filter from the cylindrical body, and to improve the efficiency of cleaning the filter.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a cylindrical body inserted into a pipe between a rainwater basin and a rainwater infiltration part, A rainwater inflow opening is formed on the rainwater basin side, and a plurality of rainwater outflow holes are formed in the peripheral wall of the cylindrical body, and a filter inserted through the rainwater inflow opening is supported inside the cylindrical body, and the rainwater flows in through the rainwater inflow opening. In a filter that allows rainwater to flow out from a rainwater outflow hole while being filtered by a filter, a cover body whose peripheral portion on the side of the rainwater inflow opening installed inside the cylindrical body of the filter can be freely attached to the rainwater inflow opening. It will be covered with

[Function] According to the present invention, since the peripheral edge of the filter inserted into the cylindrical body is covered with the cover body, rainwater can be trapped in the gap between the peripheral edge of the filter and the inner surface of the cylindrical body. This will eliminate the accumulation and clogging of dirt, mud, etc. Therefore, the filter can be easily taken in and out of the cylindrical body, the filter can be smoothly pulled out from the cylindrical body, and the efficiency of cleaning the filter can be improved.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing a filter according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the part shown in FIG. 1, FIG. 3 is a sectional view showing the filter in an exploded state, and FIG. 4 5 is a plan view of the filter, FIG. 5 is a front view thereof, and FIG. 6 is a sectional view showing a rainwater underground permeation device using the filter shown in FIG. 1.

In the rainwater underground infiltration device 30 shown in FIG.
31 is the ground surface, 32 is a road gutter, and at the bottom of the gutter 32 is a rainwater basin 3 made of a cylindrical body with a bottom.
3 will be installed. On the other hand, below the ground surface 31,
A pipe line 35 is formed that extends in the vertical direction, and the pipe line 35 connects, from above, a surface pipe 36, a rainwater inflow pipe 37, a filter support pipe 38, and a rainwater infiltration pipe 39 constituting a rainwater infiltration section. It is composed of

The upper opening of the rainwater basin 33 is closed by a lid 41 having water permeable holes 40. That is, the gutter 32
The rainwater flowing through the rainwater is collected through the water permeation hole 40.
3. At this time, a screen filter 42 is attached to the back side of the lid 41,
Relatively large debris contained in the rainwater flowing in is removed by the filter 42. The inner bottom of the rainwater basin 33 is a mud basin 43, and mud, soil, etc. contained in the rainwater flowing in are deposited in the mud basin 43. mud contained in incoming rainwater,
When the soil etc. is settled and removed, the rainwater is collected as a rainwater tank33
Water is drained from a drain port 44 formed in the side wall of the tank. The drain port 44 is continuous with the inflow portion 45 of the rainwater inflow pipe 37, and the rainwater drained into the drain port 44 flows from the inflow portion 45 into the rainwater inflow pipe 37 in the direction of arrow D. Become. At this time, a screen filter 46 is attached to the drain port 44, and the filter 46 also removes dust contained in the rainwater.

Among the pipes 35, the surface pipe 3 leading to the ground surface 31 side
A non-porous lid 47 is attached to the opening 6. A rainwater tank 3 is placed in the rainwater inflow pipe 37 in the pipe 35.
Rainwater flowing in from the third side flows downward in the pipe line 35.

Filter support pipe 38 connected to rainwater inflow pipe 37
A support ring 48 is attached to the upper end of. This support ring 48 can support a filter 49 inserted from above the pipe line 35. Filter 4
9 includes a bottomed cylindrical body 50 that can be inserted into the filter support tube 38. A tapered part 51 for supporting the filter 49 on the support ring 48 is formed at the upper part of the cylindrical body 50, and the upper part of the cylindrical body 50 allows rainwater to flow into the inside of the cylindrical body 50. A rainwater inflow opening 52 is formed. Moreover, the cylindrical body 50
A plurality of rainwater outflow holes 53 are provided in the peripheral wall of the cylindrical body 50 to pass through both the inner and outer parts thereof.

Furthermore, a filter 54 is inserted inside the cylindrical body 50 so that it can be supported. The filter 54 also has an overall cylindrical shape as shown in FIG. 3, and the filter 54 is inserted into the cylindrical body 50 through the rainwater inflow opening 52.
This is done in the direction of arrow E. The filter 54 inserted into the cylindrical body 50 can have its bottom supported by a protrusion 55 formed on the inner circumferential wall of the cylindrical body 50 . The filter 54, which has a cylindrical shape as a whole, is composed of a filter 57 having a hollow part 56 in the center, and the filter 54 inserted into the cylindrical body 50 is supported by protrusions 55 at the bottom of the filter medium 57. An annular support 58 is attached for the purpose. Further, a rainwater introduction pipe 59 is attached to the upper part of the filter material 57. That is, the rainwater introduction pipe 59 is reduced in diameter with its bottom side facing the hollow portion 56 of the filtering material 57, and the reduced diameter portion is bonded to the upper part of the filtering material 57. The rainwater introduction pipe 59 has an enlarged diameter at the upper side, and the enlarged diameter portion comes into close contact with the upper inner wall of the cylindrical body 50 when the filter 54 is inserted into the cylindrical body 50 (see FIG. 1). The filtering material 57 has a net-like screen 60 attached to the inner surface of the hollow part 56, and a handle 61 is further attached to the upper part of the hollow part 56.

A cover body 62 is inserted in the direction of arrow E and attached to the rainwater inflow opening 52 of the cylindrical body 50 into which the filter 54 is inserted [see FIG. 3]. When the cover body 62 is inserted in the direction of arrow E, the bottom portion thereof is inserted into the rainwater introduction pipe 59 of the filter 54 . Further, the cover body 62 is provided with a tapered enlarged diameter part 63 at the upper part, and the diameter enlarged part 63 is formed on the cover body 62.
The cylindrical body 5 is inserted into the rainwater inflow opening 52.
It overlaps with the upper taper part 51 of 0. In this way, the filter 54 is inserted into the cylindrical body 50,
Further, when the cover body 62 is inserted into the rainwater inflow opening 52, the upper peripheral edge of the filter 54 is covered with the cover body 62. As shown in FIGS. 2 and 4, a locking hole 64 is penetrated through the tapered portion 51 of the overlapped cylindrical body 50 and the enlarged diameter portion 63 of the cover body 62, and a handle 65 is inserted into the locking hole 64. is inserted and secured.

As shown in FIG. 6, the filter 49, which supports the filter 54 inside as described above,
is inserted into the conduit 35 from above. Filter 49
The insertion is carried out by engaging the string 66 of the handle 65 and pulling the string 66 down. The filter 49 that is lowered into the pipe 35 includes a rounded curved portion 67 on the outer circumference of the distal end of the cylindrical body 50 . Therefore, the filter 49 can be attached to the pipe line 35 without the outer circumferential portion of the distal end of the filter 49 getting caught on the inner wall of the pipe line 35.
It will be inserted smoothly inside. In particular, the filter 4 is attached to the support ring 48 of the filter support tube 38.
The bottom of the filter 9 does not get caught, and the filter 49 can be inserted smoothly. Inserted filter 4
9, the lower surface of the tapered portion 51 of the cylindrical body 50 is supported by the support ring 48. At this time, a seal member 6 is provided on the lower surface of the tapered portion 51 as shown in FIG.
8 is adhered thereto, and the sealing member 68 maintains a watertight state between the support ring 48 and the tapered portion 51. In this way, the filter 49
is inserted into and supported by the filter support tube 38. The upper end of the string 66 attached to the handle 65 of the filter 49 is attached to the back side of the lid 47.

The filter 49 supported by the filter support tube 38 is
Rainwater flowing down in the direction of arrow E from the rainwater inlet 52 can flow into the interior, and the rainwater flows through the filter 5.
It flows down into the hollow part 56 of 4. Furthermore, the hollow part 56
Rainwater flowing into the interior is transmitted through the screen 60 and the filter material 57 in the direction of arrow F. screen 6
The rainwater that has passed through the filter material 57 is drained to the outside of the cylindrical body 50 through the rainwater outflow hole 53. On the other hand, heavy metals, earth and sand contained in the rainwater flowing into the hollow part 56 flow into a settling part 69 provided at the inner bottom of the cylindrical body 50 and are settled therein.

In this way, the filter 49 is connected to the rainwater inlet 52.
Heavy metals, earth and sand, etc. contained in the rainwater flowing in are removed by precipitation, and the rainwater is transmitted through the screen 60 and the filter 57 and filtered. The filtered rainwater flowing out from the rainwater outflow hole 53 flows down the pipe 35 and flows into the rainwater infiltration pipe 39.
flow into. The rainwater permeation pipe 39 is buried in the permeation layer 70 underground, and the rainwater flowing into the permeation pipe 39 can permeate into the permeation layer 70 through the permeation hole 71.

When the filter 49 is used for a certain period of time, the pipe line 35
It is taken out and the inside is cleaned. Filter 4
Step 9 is performed by pulling up the string 66 attached to the handle 65. Cleaning of the filter 49 is performed by engaging and disengaging the handle 65 inserted through the engagement hole 64 and then pulling out the cover body 62 and the filter 54 from the cylindrical body 50. The filter 54 is pulled out by pulling up the handle 61 from inside the cylindrical body 50. At this time, since the upper peripheral edge of the filter 54 is covered with the cover body 62, dust, dirt, etc. do not accumulate in the gap between the upper peripheral edge and the inner surface of the cylindrical body 50, and the filter 54 is removed from the cylindrical body 50. It can be pulled out smoothly. When the filter 54 is pulled out from the cylindrical body 50, precipitates such as heavy metals and earth and sand accumulated in the settling section 69 are removed, and dirt adhering to the filter 49 of the filter 54 is washed away. After the filter 54 and the inside of the cylindrical body 50 are cleaned in this way, the filter 54 is inserted into the cylindrical body 50 again as shown in FIG. 1, and the filter 49 is assembled. The cleaned filter 49 is lowered into the pipe line 35 again and is supported inside the filter support tube 38.

Next, the operation of the above embodiment will be explained.

According to the filter 49, since the upper peripheral edge of the filter 54 inserted into the cylindrical body 50 is covered with the cover body 62, there is a gap between the upper peripheral edge of the filter 54 and the inner surface of the cylindrical body 50. This will prevent dirt, mud, etc. contained in rainwater from accumulating or clogging in the gaps. Therefore, the filter 54 can be easily taken in and out of the cylindrical body 50, and the filter 54 can be easily taken in and out of the cylindrical body 50.
4 is pulled out smoothly, and the cleaning workability of the filter 49 is improved.

[Effects of the invention] As described above, the filter according to the invention includes a cover body that can be attached to the rainwater inflow opening at the peripheral edge of the rainwater inflow opening that is installed inside the cylindrical body of the filter. Since it is coated, it is possible to easily pull out the filter from the cylindrical body, and there is an effect that the cleaning workability of the filter can be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a filter according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of the part shown in FIG. 1, FIG. 3 is a sectional view showing the filter in an exploded state, and FIG. 4 is a plan view of the filter, FIG. 5 is a front view thereof, FIG. 6 is a cross-sectional view of a rainwater underground permeation device using the filter shown in FIG. 1, and FIG. 7 is a cross-sectional view of a conventional filter. It is a diagram. 33...Rainwater basin, 35...Pipe line, 39...Rainwater infiltration pipe, 49...Filter, 50...Cylindrical body, 5
2...Rainwater inflow opening, 53...Rainwater outflow hole, 54
...Filter, 62...Cover body.

Claims (1)

[Scope of claim for utility model registration] (1) A cylindrical body that is inserted into a pipe between a rainwater basin and a rainwater infiltration part, and a rainwater inflow opening on the rainwater basin side of the cylindrical body; A plurality of rainwater outflow holes are formed in the peripheral wall of the body, and a filter inserted from the rainwater inflow opening is supported inside the cylindrical body, and the rainwater outflow hole is configured such that the rainwater flowing in from the rainwater inflow opening is filtered by the filter. A filter that allows more water to flow out from the filter, characterized in that the peripheral edge of the rainwater inflow opening side that is attached to the inside of the cylindrical body of the filter is covered with a cover body that can be attached to the rainwater inflow opening. (2) The filter according to claim 1, which is a cylindrical body to be inserted into a pipe, and has a rounded outer circumferential end.