JP3146704U - Filter cap for drain pipe - Google Patents

Abstract

【Task】
To provide a filter cap for a drain pipe that uses a block product, allows easy insertion of a water permeable filter, and realizes low manufacturing costs.
[Solution]
Cylindrical section 7 with a cylindrical inner wall section tapered, drainage pipe inserted thereinto, and projecting strip 3 projecting from the inner circumferential wall of the cylinder at the same interval on the same section, and permeable filter 2 insertion side Bending in the direction of the cylindrical axis from the peripheral edge of the opening, and provided in the same cross section with the cylindrical inner peripheral wall at a position where the protruding piece 3 does not overlap with the circumferential position of the cylindrical inner peripheral wall viewed from the opening. There are a large number of protrusions 4 that are arranged at equal intervals on the top and shorter in the circumferential direction than the protrusions 3, and gaps 8 in the cylindrical axis direction between the protrusions 3 and the protrusions 4. The problem can be solved by the drain pipe filter cap 1 including the water permeable filter 2 in which the water permeable filter 2 in which several filters 32 each having a lattice hole are overlapped and fitted into the gap 8 is inserted.
[Selection] Figure 3

Description

The present invention relates to a filter for preventing sediment from being used for a drain pipe for draining sediment on the back of a block product.

  Conventionally, a drainage pipe inner holder 21 that holds a drainage pipe for draining earth and sand on the back of a block product and a concrete retaining wall is used for both a block product and a concrete retaining wall.

This will be described with reference to FIG. The drain pipe inner holder 21 is a drain pipe inner holder 21 inserted into the drain pipe 6, and the holder 21 to be inserted has two shapes with a large diameter at the center and a small diameter at both ends. A projecting ridge 22 having a substantially drum-shaped outer peripheral surface with a tapered surface abutting and having a water-permeable filter 2 pulled out and inserted is installed on the inner peripheral wall of the holder 21 to be inserted. 21 is a substrate 24 projecting out of the cylindrical portion, and the substrate 24 is provided with a lattice hole 25 having a lattice hole frame width of 3 to 4 mm. The base plate portion 24 has a shape in which a plurality of cylindrical base portions 26 for inserting nails that are driven into the inner panel 23 are projected in parallel to the cylindrical portion, and the projected ridges 22 and a number of lattice holes are provided. The water permeable filter 2 is placed in the gap with the substrate 24. Has a structure that instrumentation (e.g., utility model registration Reference 1.).

  The use of the drain pipe inner holder 21 disclosed in the utility model registration document 1 is used for block products and concrete retaining walls, and in the case of concrete retaining walls, all installed on concrete retaining walls in a specific range The concrete drainage pipe inner holder 21 is fastened to the inner panel 23 and the like, and then the concrete is poured. In the case of a block product, the drain pipe inner holder etc. After filling, the work of placing the drainage pipe inner holder 21 in the second stage block and filling the mortar is repeated.

Utility Model Registration No. 3014481

  When the drain pipe inner holder 21 or the like is used for the block product 10, the blocks 11 are stacked one by one, so that the inner panel 23 for pouring concrete and forming the retaining wall is not used. There is no need for a nail for fastening the drain pipe inner holder 21 to 23, and this eliminates the need for the cylindrical base part 26 for inserting the nail of the base plate part provided in the holder.

  Further, in order to form a lattice hole 25 having a substantially drum-shaped outer peripheral surface with a large diameter at the center and a small diameter at both ends and abutting two tapered surfaces, the width of the lattice hole frame being 3 to 4 mm. There is a problem that a lot of work man-hours are required and a lot of materials are required, so that the cost is high.

  Furthermore, when inserting the water permeable filter 2, one of the drainage pipe inner holders 21 is opened, but the other has a shape in which the lattice-shaped substrate 24 serves as a barrier to close the opening, Since the water permeable filter 2 is inserted while being in contact with the substrate 24, there is a problem that it is difficult to insert the water permeable filter 2.

  The purpose of the present invention is a water permeable filter cap 1 that uses a block product 10, which allows easy insertion of the water permeable filter 2 during construction, reduces the number of work steps, and realizes a reduction in manufacturing costs. An object of the present invention is to provide a filter cap 1 for a drainage pipe.

In the present specification and the utility model registration request, the “narrow” described in the protruding strip 3 and the protruding strip 4 means that the height from the inner peripheral wall surface of the cylinder toward the cylindrical axis is 3 mm to 15 mm. , Preferably 5 mm to 10 mm, meaning that the height is low.

In the present invention, the “position on the circumference” means the position on the circumference of the inner diameter of the cylinder when viewed from the direction in which the shape of the cylinder can be regarded as a circle, and “does not overlap” means the shape of the cylinder. It means that there is a gap between the protruding piece 3 and the protruding piece 4 when viewed from the opening which is a direction that can be regarded as a substantially circular shape.

  In the present invention, “viewed from the opening” means a substantially circular opening on the side where the permeable filter 2 is inserted into the drain pipe filter cap 1 or a substantially circular opening on the side where the drain pipe 6 is inserted. It means to see from the department.

  The invention of the drain pipe filter cap 1 according to claim 1 is a cylindrical drain pipe filter cap 1 having an opening on the side where the drain pipe 6 is inserted and an opening on the insertion side of the permeable filter 2. A cylindrical portion 7 whose cylindrical inner wall section becomes tapered in a tapered manner from the insertion side opening in the drainage pipe 6 toward the opening on the insertion side of the water permeable filter 2, and the drainage pipe 6 inserted therein is stopped. A protruding strip 3 projecting from the inner peripheral wall of the cylinder at the same interval on the same cross section, and bent continuously in the direction of the cylindrical axis from the peripheral edge of the permeable filter 2 insertion side opening, Is a position where the circumferential position of the inner circumferential wall of the cylinder as viewed from the opening does not overlap, and is arranged on the inner circumferential wall of the cylinder at equal intervals on the same cross section, and has a shorter length in the circumferential direction than the protruding strip 3. In the gap 8 in the cylindrical axis direction between the piece 4 and the protruding piece 3 and the protruding piece 4 The filter 32 having a plurality of grid holes so fitted a permeable filter 2 superimposed several sheets, characterized in that it comprises a, and permeability filter 2 which is HamaSo into the gap.

The device of the drain pipe filter cap 1 according to claim 2 is a cylindrical drain pipe filter cap 1 having an opening on the side where the drain pipe 6 is inserted and an opening on the side where the water permeable filter 2 is inserted. A cylindrical portion 7 having a cylindrical inner wall section that tapers from the drainage pipe 6 insertion-side opening toward the water-permeable filter 2 fitting insertion-side opening, and the inserted drainage pipe 6 is stopped. Three narrow projecting strips 3 projecting from the inner circumferential wall of the cylinder at equal intervals on the same cross section, and bent continuously in the direction of the cylindrical axis from the peripheral edge of the permeable filter 2 filling side opening, The protruding piece 3 is a position where the circumferential position of the cylindrical inner peripheral wall seen from the opening does not overlap, and the gap 9 between the protruding piece 3 in the circumferential direction seen from the opening is 0.1 mm to 10 mm. , Preferably 0.5mm to 3mm, same as cylindrical inner wall Three narrow projecting pieces 4 that are arranged at equal intervals on the surface and shorter in the circumferential direction than the projecting strip 3, and the cylindrical axial direction of the projecting strip 3 and the projecting piece 4 The gap 8 is a gap 8 that is 0.1 mm to 5 mm, preferably 0.1 mm to 1 mm wider than the thickness of the permeable filter, and 2 to 6 filters 32 having a number of lattice holes, preferably 3 The water-permeable filter 2 that is inserted into the gap 8 is inserted into the four water-permeable filters 2 that are overlapped with each other.

  The invention of the filter cap 1 for a drain pipe according to claim 1 does not provide the substrate 24 provided with the substantially drum-shaped outer peripheral portion and the lattice hole 25, but has a plurality of protrusion pieces 3 and protrusion pieces 4 in a cylindrical shape. Since the shape is provided, it is possible to reduce the work man-hours and the amount of material, and to realize a reduction in manufacturing cost including material cost and weight reduction as a product.

  Further, since the inner peripheral surface of the drain pipe filter cap 1 is tapered, when the water drain pipe 6 is inserted, the outer peripheral portion of the end of the drain pipe 6 extends over the entire circumference of the cap inner peripheral surface portion. Therefore, even if the drain pipe 6 is used for a long time, there is an effect that it is difficult to come off.

  When the water permeable filter 2 is inserted, there are only three narrow projecting pieces 4 in front of the position to be inserted, and it does not have a structure for closing the opening like a substrate. And since the protrusion 4 and the protrusion 3 do not overlap in the position on the circumference seen from the opening, there is an effect that the water-permeable filter 2 can be easily inserted.

  By eliminating the need for the substrate 24 having the lattice hole frame width of 3 to 4 mm and the lattice holes 25 formed therein, the water permeable area of the opening is increased and the amount of water passing through the opening is increased, thereby improving drainage efficiency. There is an effect of doing.

  Since the gap in the cylindrical axis direction between the ridge piece and the protruding piece is approximately the thickness of the water permeable filter, there is an effect that the inserted water permeable filter does not fall down and can maintain a substantially perpendicular posture with respect to the cylinder axis direction. is there.

  The device of the filter cap 1 for a drain pipe according to claim 2 has the same effect as the device of claim 1.

  First, in FIG. 2 thru | or FIG. 7, the structure of the drain pipe filter cap 1 is demonstrated.

  The drain pipe filter cap 1 includes a drain pipe cap 5 and a water permeable filter 2.

In FIG. 2, which is a front view of the drain pipe filter cap 1, the projecting pieces 4 are arranged at three locations on the circumference at equal intervals, and in contact with the projecting pieces 4 on the back side of the projecting piece 4, the water permeable filter 2. Has been fitted.

  Although the diameter of the water permeable filter 2 is substantially the same as the inner diameter of the cylindrical portion 7, the projecting piece 4 existing in the foreground is narrow and the circumferential length is short, so that the water permeable filter 2 can be easily inserted. it can.

  In FIG. 3 showing the AA cross section of the drain pipe filter cap 1 in FIG. 2, the water permeable filter 2 in which several filters 32 provided with a large number of lattice holes are overlapped is formed between the protruding strip 3 and the protruding strip 4. Since the gap 8 is inserted into the gap 8, and the gap 8 is substantially the same as the thickness of the water-permeable filter 2, the filled water-permeable filter 2 is not tilted and is in a state of being substantially perpendicular to the cylindrical axis direction.

  Next, in FIG. 4 showing the front view of the drain pipe cap 5 before the water permeable filter 2 is inserted, the drain pipe cap 5 is bent in the direction of the cylindrical axis from the circumferential edge of the water filter 2 insertion side. The projecting pieces 4 that are continuously provided and are arranged at equal intervals at three locations, and are arranged at equal intervals at three locations on the same inner cross-section on the inner wall of the cylinder on the inner side of the projecting pieces 4. The cylindrical inner peripheral wall as viewed from the opening portion is configured such that the position on the circumference of the cylinder does not overlap, and the cylindrical piece 7 and the protruding piece 3 that is longer than the protruding piece 4 in the circumferential direction.

  In FIG. 5 showing the BB cross section of the drain pipe cap 5 in FIG. 4, a gap 8 exists between the protruding strip 3 and the protruding strip 4 in the cylindrical axis direction.

  Further, in FIG. 6, when the drain pipe cap 5 is viewed from the opening side on the drain pipe 6 insertion side, the protrusion pieces 3 arranged at three places and the projection pieces 4 arranged at three places are drain pipes. It is arrange | positioned so that it may not overlap on the circumference seen from the opening part of the insertion side.

  In FIG. 7 in which the drain pipe 6 is inserted into the drain pipe filter cap 1, the cylindrical portion 7 has a narrow cylindrical inner wall section tapered from the insertion side opening in the drain pipe 6 toward the opening on the insertion side of the permeable filter 2. The drainage pipe 6 inserted therein is stopped by the protruding strip 3.

[Use status]
Next, in FIG. 1, the usage state of the drain pipe filter cap 1 installed in the block product 10 will be described.

  The block product 10 includes a block 11, a drain pipe 6 and a drain pipe filter cap 1 installed so as to communicate the road side 12 and the earth and sand side 13, and the block 11, the drain pipe 6 and the drain pipe filter cap 1. The mortar 14 fills the gap.

  By installing the drainage pipe 6 and the drainage pipe filter cap 1, only the water out of the earth and sand existing on the earth and sand side 13 passes through the drainage pipe filter cap 1 and flows through the drainage pipe 6, so that the road side 12. To leak.

[Installation method]
In FIG. 8 or FIG. 9, the installation method of the drain pipe filter cap 1 which inserted the drain pipe 6 is demonstrated.

  First, the blocks 11 are arranged on the ground while filling the mortar 14 between the blocks 11, and when the first block 11 has been arranged, the drain pipe 6 can be placed on the second block 11 The drainage pipe filter cap 1 in which the drainage pipe 6 is inserted is placed in the gap 16 while securing the gap 16.

  The mortar prevention plate 15 is attached to the drainage pipe filter cap 1 so that the opening of the drainage pipe filter cap 1 on the insertion side of the permeable filter 2 and the opening of the drainage pipe 6 that are not on the drainage pipe filter cap 1 side are covered with each other. The mortar 14 is filled in the gap 16 between the block 11 and the drainage pipe filter cap 1 in which the drainage pipe 6 is inserted up to the height of the upper part of the block 11 stacked on the eyes.

  After filling the mortar 14, the mortar prevention plate 15 is tapped and removed.

  The block product 10 is completed by repeating the above operation.

  Next, the present invention will be described with reference to examples, but the present invention is not limited to the examples.

4 or 5, the drain pipe cap 5 has a cylindrical shape, and has an opening on the side where the drain pipe 6 is inserted and an opening on the side where the water permeable filter 2 is inserted, and the drain pipe 6 insertion side. The cylindrical portion 7 has a cylindrical inner wall section that becomes tapered from the opening portion toward the opening portion on the insertion side of the permeable filter 2, and the drainage pipe 6 inserted therein is stopped, and the inner circumferential wall of the cylinder is on the same section. It has three narrow strips 3 protruding at equal intervals, and is bent continuously in the direction of the cylindrical axis from the circumferential edge of the opening on the side where the water permeable filter 2 is inserted. The gaps 9 between the protrusions 3 and the protrusions 4 are set to 0.5 mm in the circumferential direction of the cylindrical inner peripheral wall as viewed from the opening.

In FIG. 4, the circumferential length of the protruding piece 4 is made shorter than the circumferential length of the protruding piece 3 in order to facilitate the operation of inserting the water permeable filter.

  In FIG. 3, in the drain pipe cap 5, the gap 8 in the cylindrical axis direction between the protruding piece 3 and the protruding piece 4 is set to be 0.5 mm wider than the thickness 31 of the water permeable filter.

  In FIG. 3, the water permeable filter 2 fitted into the drain pipe filter cap 1 is a water permeable filter 2 in which four filters 32 provided with a number of lattice holes are overlapped.

  From the above, it has an opening on the side where the drain pipe 6 is inserted and an opening on the permeable filter 2 filling side, and is tapered from the insertion side opening on the drain pipe 6 toward the permeable filter 2 filling side opening. A cylindrical portion 7 having a narrow cylindrical inner wall cross section, a drain pipe 6 inserted therein, and three narrow projecting strips 3 projecting from the cylindrical inner peripheral wall at equal intervals on the same cross section; The permeable filter 2 is provided in a continuous manner by being bent in the direction of the cylindrical axis from the peripheral edge of the filling side opening, and the protruding piece 3 is a position where the position on the circumference of the cylindrical inner peripheral wall viewed from the opening does not overlap. In addition, the gap 9 with respect to the protruding strip 3 in the circumferential direction viewed from the opening is 0.5 mm, and is arranged on the inner wall of the cylinder at equal intervals on the same cross section, and is longer in the circumferential direction than the protruding strip 3. Three narrow projecting pieces 4 having a short length and a gap 8 in the cylindrical axial direction between the projecting piece 3 and the projecting piece 4, the gap 8 A drainage filter cap including the permeable filter 2 in which the permeable filter 2 in which four filters 31 having a large number of lattice holes are overlapped is inserted into the gap 0.5 mm wider than the thickness of the permeable filter 2 and is inserted. Build.

It is a schematic diagram of a block product. It is a front view of a drain pipe filter cap. It is AA sectional drawing of the drain pipe filter cap in FIG. It is a front view of a drain pipe cap. It is BB sectional drawing of the drain pipe cap in FIG. It is the figure which looked at the drain pipe cap from the drain pipe insertion side opening part side. It is the figure which made the drain pipe insert in the drain pipe filter cap. It is a schematic diagram of a block product. It is CC sectional drawing of the block product in FIG. It is a conventional drainage pipe inner holder. It is a figure of the board | substrate of the conventional drainage pipe inner holder seen from the D direction in the state which removed the inner panel 23 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter cap for drain pipe 2 Permeable filter 3 Projection piece 4 Projection piece 5 Cap for drain pipe 6 Drain pipe 7 Cylindrical part 8 Cylinder axial gap 9 Gap between circumferential projection piece and projection piece 10 Block product DESCRIPTION OF SYMBOLS 11 Block 12 Road side 13 Earth and sand side 14 Mortar 15 Mortar prevention board 16 Gap between blocks, drainage pipe filter caps, etc. 21 Drainage pipe inner holders 22 Projections 23 Inner panel 24 Substrate 25 Grid hole 26 Cylindrical base part 31 Permeation filter Thickness 32 Filter with many lattice holes

Claims (2)

  Cylindrical drain pipe filter cap having an opening for inserting the drain pipe and an opening for inserting the water permeable filter, and an opening for inserting the water permeable filter from the opening for inserting the drain pipe. A cylindrical part with a tapered inner wall section that tapers in the direction of the wall, a drain pipe inserted into the cylindrical wall, and a protruding piece projecting at equal intervals on the inner circumferential wall of the cylinder, and a permeable filter inserted Bending in the direction of the cylindrical axis from the peripheral edge of the side opening, and the protruding piece is the same cross section as the cylindrical inner peripheral wall at a position where the circumferential position of the cylindrical inner peripheral wall seen from the opening does not overlap A plurality of lattice holes are provided in the gaps in the cylindrical axis direction between the protruding pieces and the protruding pieces, which are arranged at equal intervals on the upper side and shorter in the circumferential direction than the protruding pieces. Insert a water permeable filter with several filters on top of each other and insert it into the gap. Draining filter cap pipe which comprises an a permeability filter was instrumentation.   Cylindrical drain pipe filter cap, having an opening on the side where the drain pipe is inserted and an opening on the permeable filter insertion side, and the permeable filter insertion side opening from the drain pipe insertion side opening Three narrow strips projecting at equal intervals on the same inner section on the cylindrical inner wall, with the cylindrical section where the inner wall section of the cylinder becomes tapered toward the wall and the drain pipe inserted thereinto And, it is continuously provided by bending in the direction of the cylindrical axis from the peripheral edge of the permeable filter filling side opening, and the position on the circumference of the cylindrical inner peripheral wall seen from the opening does not overlap, And the clearance with the said strip piece of the circumferential direction seeing from the opening part is 0.1 mm to 10 mm, Preferably it is 0.5 mm to 3 mm, and is arrange | positioned on the cylindrical inner peripheral wall at equal intervals on the same cross section, Three narrow projecting pieces that are shorter in the circumferential direction than the one piece, and the front A filter provided with a number of lattice holes in a gap between the protruding piece and the protruding piece in the cylindrical axial direction, the gap being 0.1 mm to 5 mm, preferably 0.1 mm to 1 mm wider than the thickness of the permeable filter. A drainage pipe filter cap comprising: a water permeation filter that is fitted in the gap by inserting a water permeation filter in which six to six, preferably three to four permeation filters are inserted.

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