JP2008101333A - Drainage system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage system which dispenses with the preparation of a plurality of types of sundries collecting bodies different in the amount of protrusion, and which can change the amount of the protrusion of the sundries collecting body after construction. <P>SOLUTION: This drainage system 1 is equipped with a main body 6 which comprises a tubular main body portion 11 for receiving rainwater, and a flange portion 15 protruding from an outer peripheral surface of the tubular main body portion 11. The reticular sundries collecting body 9 is detachably attached in the tubular main body portion 11 of the main body 6. A drain hole 17 is formed in the position, facing a top surface of the flange portion 15, of the tubular main body portion 11 in such a manner as to pass through inner and outer peripheral surfaces of the tubular main body portion 11. The amount of the upward protrusion of the sundries collecting body 9 from the main body 6 can be adjusted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a drainage device that is installed, for example, on the roof of a building, a veranda, or the like and receives rainwater and discharges the received rainwater to a drain pipe.

Conventionally, for example, a main body such as a drain main body connected to an upper end portion of a drain pipe, an annular waterproof sheet integrally fixed to a drain outlet periphery formed in the main body, and some dust disposed above the drain outlet For example, a drainage device such as a roof drain provided with a miscellaneous matter collecting body such as a strainer that largely protrudes upward from the main body so as not to be clogged is known (see, for example, Patent Document 1).
JP 2006-37391 A

  However, in recent years, the number of owners who think that a miscellaneous collection object projects greatly upward from the main body is not only stumbling but also not good-looking, so that the miscellaneous collection object rises upward from the main body. Those that did not protrude toward the surface of the wall began to be used, and the contractor had to prepare both a protruding type and a non-projecting type.

  The present invention has been made in view of such points, and it is not necessary to prepare a plurality of types with different amounts of protrusions of miscellaneous collectors. It aims at providing the drainage which can be changed.

  The drainage device according to claim 1 is a drainage device that receives rainwater and discharges it into a drain pipe, and a main body having a cylindrical main body portion that receives rainwater and a flange protruding from the outer peripheral surface of the cylindrical main body portion; A dust collecting body that is attached to the main body and prevents foreign substances such as dust from entering the drain pipe, and a drain hole is provided at a position facing the upper surface of the flange in the cylindrical main body. Is formed so as to penetrate through the inner and outer peripheral surfaces of the cylindrical main body portion, and the amount of upward protrusion of the miscellaneous matter collecting body from the main body can be adjusted.

  The drainage device according to claim 2 is the drainage device according to claim 1, wherein the main body has a main body side fitting portion, and the miscellaneous matter collecting body is detachably fitted to the main body side fitting portion. In the state where the collector-side fitting portion and the collector-side fitting portion are fitted, the upper surface of the miscellaneous collector is substantially the same height as the upper end of the main body. In the state where the fitting of the main body side fitting portion and the collector side fitting portion is released, the upper surface of the contaminant collecting body is located at a height position higher than the upper end of the main body. It is.

  The drainage device according to claim 3 is the drainage device according to claim 2, wherein the body-side fitting portion of the main body is a plurality of fitting convex portions protruding from the inner peripheral surface of the cylindrical main body portion, The collector-side fitting portion of the aggregate is a plurality of fitting recesses that are notched in the lower portion of the miscellaneous matter collector and open downward.

  According to the first aspect of the present invention, the amount of upward protrusion from the main body of the dust collector can be adjusted, so it is necessary to prepare a plurality of types with different amounts of protrusion of the dust collector. None, and even after construction, the amount of protrusion of the miscellaneous matter collector can be changed. Moreover, since the drainage hole is formed in the cylindrical body portion of the main body at a position facing the upper surface of the flange portion so as to penetrate the inner and outer peripheral surfaces of the cylindrical body portion, Can be introduced into the cylindrical main body portion of the main body from the upper surface of the main body through the drain hole.

  According to the invention which concerns on Claim 2, the protrusion of a foreign material collection body is carried out by making the main body side fitting part of a main body and the collection body side fitting part of a foreign material collection body fit or it is not made to fit. The amount can be changed easily.

  According to the invention which concerns on Claim 3, a plurality of fitting convex parts of a main part and a plurality of fitting concave parts of a foreign matter collection body are made to fit, or it is not made to fit, and projection of a foreign matter collection body The amount can be changed easily and appropriately.

  An embodiment of the drainage device of the present invention will be described with reference to the drawings.

  In FIG. 1 and FIG. 2, reference numeral 1 denotes a drainage device. The drainage device 1 is installed on a slab 2 that is a concrete floor such as a roof of a building or a veranda, for example, and receives rainwater from the upper surface of the slab 2. It is a roof drain or the like that collects garbage such as garbage and discharges the received rainwater to a drain pipe 3 connected to the lower part.

  The drainage device 1 includes a substantially cylindrical main body 6 that receives rainwater, a cylindrical pipe 7 whose upper outer peripheral side is fitted and connected to the lower inner peripheral side of the main body 6, and an upper inner peripheral side on the lower outer peripheral side of the pipe 7. A cylindrical socket 8 in which the outer peripheral side of the upper end of the drainage pipe 3 is fitted and connected to the inner peripheral side of the lower part, and other debris such as dead leaves attached to the upper inner peripheral side of the main body 6 in a detachable manner. And the like, and a net-like miscellaneous substance collector 9 that prevents the miscellaneous substances from entering the drain pipe 3 is provided. In this drainage device 1, the amount of upward protrusion of the miscellaneous matter collector 9 from the main body 6 can be adjusted. That is, for example, the miscellaneous matter collector 9 is selectively switched between a state in which it does not protrude upward from the main body 6 (non-projecting state) and a state in which the foreign matter collector 9 protrudes upward from the main body 6 (protruding state). It is possible.

  As shown in FIGS. 3 to 6, the main body 6 is formed in a substantially cylindrical shape whose upper and lower surfaces are opened by, for example, synthetic resin. The main body 6 is integrally provided with a substantially cylindrical tubular body portion 11 for receiving rainwater from the upper surface opening 10 and a lower end of the tubular body portion 11 via a substantially annular annular plate portion 12. A lower cylindrical portion 13 having a substantially cylindrical shape with a smaller diameter.

  A substantially annular flange 15 that protrudes outward from the outer peripheral surface of the cylindrical main body 11 is integrally provided at the center of the outer peripheral surface of the cylindrical main body 11 in the vertical direction. A protrusion 16 is integrally provided on the periphery so as to face upward. The upper surface of the flange portion 15 is formed by an inclined surface 15a that is inclined downward from the outer peripheral edge toward the inner peripheral edge. In the cylindrical main body 11, a drain hole 17 for introducing water on the inclined surface 15a into the cylindrical main body 11 is provided at a position facing the inclined surface 15a that is the upper surface of the flange 15 in the cylindrical main body 11. A plurality of portions 11 are formed so as to penetrate the inner and outer peripheral surfaces of the portion 11. For example, the drain holes 17 are formed at four positions at equal intervals in the circumferential direction of the cylindrical main body 11 (see FIG. 4). Further, on the outer peripheral surface of the lower part of the cylindrical main body part 11, a substantially triangular rib plate protrudes outward from the outer peripheral surface of the cylindrical main body part 11 and protrudes downward from the lower surface of the flange part 15. 18 are integrally provided at four positions at equal intervals in the circumferential direction of the cylindrical main body 11.

  The inner peripheral surface of the lower portion of the cylindrical main body portion 11 is a plurality of, for example, four main body side fitting portions that are slightly elongated in the vertical direction and protrude inward from the inner peripheral surface of the cylindrical main body portion 11. The fitting convex part 20 is provided integrally. For example, the fitting protrusions 20 are formed at four positions corresponding to the rib plate 18 at equal intervals in the circumferential direction of the cylindrical main body 11. The projecting dimension of the fitting convex part 20 inward from the inner peripheral surface of the cylindrical main body part 11 is substantially the same as the thickness dimension of the cylindrical main body part 11.

  The upper surface of the annular plate portion 12 is formed by an inclined surface 12a that is inclined downward from the outer peripheral edge toward the inner peripheral edge. The inner peripheral edge portion of the annular plate portion 12 protrudes inward from the inner peripheral surface of the lower cylindrical portion 13 to form a protruding edge portion 22 that faces the circular drainage port 21, and the lower cylindrical portion 13 The upper end surface of the pipe 7 that is fitted and connected to the inner peripheral side is in contact with the lower surface of the protruding edge portion 22.

  Since the inner diameter of the lower cylindrical portion 13 of the main body 6 is substantially the same as the standard outer diameter of the pipe 7, an existing pipe can be inserted and connected to the inner peripheral side of the lower cylindrical portion 13. For this reason, by combining the pipe 7 and the socket 8 having a desired length dimension cut corresponding to the thickness dimension of the slab 2, the slab 2 having an arbitrary thickness dimension can be accommodated. .

  As shown in FIGS. 7 to 10, the miscellaneous matter collecting body 9 is formed in a substantially hat shape having a lower surface opened by, for example, a synthetic resin. The miscellaneous matter collector 9 has a cylindrical side wall portion 31 and a substantially dome-shaped upper plate portion 32 provided integrally with the upper peripheral end of the side wall portion 31.

  The upper plate part 32 is formed with a plurality of holes 33 through which rainwater passes. The hole 33 is constituted by, for example, three types of holes 33a, 33b, and 33c having different opening areas, and the plurality of holes 33a, 33b, and 33c are arranged at intervals in the circumferential direction of the upper plate part 32. (See FIGS. 8 and 9). Two holes 33c among the plurality of holes 33c arranged at the peripheral edge portion of the upper plate portion 32 are formed to have a size capable of inserting a finger and serve as finger-hanging hole portions 34.

  A plurality of, for example, four substantially rectangular collector-side fitting portions 35, which are detachably fitted to the fitting projections 20 of the main body 6, face downward in the lower portion of the side wall portion 31. A notch is formed so as to open. For example, the fitting recesses 35 are formed at four positions at equal intervals in the circumferential direction of the side wall 31 corresponding to the fitting protrusions 20 of the main body 6. The depth dimension of the fitting recess 35 is substantially the same as the vertical dimension of the fitting protrusion 20 of the main body 6.

  Note that the outer diameter of the side wall 31 of the contaminant collecting body 9 is substantially the same as the inner diameter of the cylindrical main body 11 of the main body 6, and the side wall 31 is located on the inner peripheral side of the cylindrical main body 11 of the main body 6. On the other hand, it is removable. On the outer peripheral surface of the side wall 31, a vertically extending bulging portion 36 for projecting the miscellaneous matter collector 9 to the main body 6 is projected.

  Then, as shown in FIG. 1, the fitting convex portion 20 of the main body 6 enters the fitting concave portion 35 of the dust collecting body 9, and the fitting convex portion 20 of the main body 6 and the fitting concave portion of the dust collecting body 9. 35 are fitted to each other, and in a state where the lower end of the foreign matter collector 9 is placed on the annular plate portion 12 of the main body 6, the upper surface (upper end) of the foreign matter collector 9 is the upper end of the main body 6 (upper surface of the slab 2). ) Is located at approximately the same height. For this reason, it looks good and does not trip over the miscellaneous matter collector 9. In addition, when the upper surface of the foreign material collection body 9 is located at the substantially same height position as the upper end of the main body 6, the height position of the upper surface of the foreign material collection body 9 is the same as the height position of the upper end of the main body 6. In addition to the case, it means that the height position of the upper surface of the contaminant collection body 9 is slightly lower or slightly higher than the height position of the upper end of the main body 6.

  Further, as shown in FIG. 2, the fitting between the fitting convex portion 20 of the main body 6 and the fitting concave portion 35 of the foreign matter collecting body 9 is released, and the lower end of the foreign matter collecting body 9 is the fitting convex portion of the main body 6. In the state of being placed on the part 20, the upper surface (upper end) of the miscellaneous matter collector 9 is located at a higher position than the upper end of the main body 6 (upper surface of the slab 2). That is, for example, the entire upper plate portion 32 of the miscellaneous matter collector 9 protrudes upward from the upper end of the cylindrical main body portion 11 of the main body 6 and is disposed at a position above the upper surface of the slab 2. Nine holes 33 are designed not to be clogged with some foreign matter such as dust.

  And the main body of the miscellaneous matter collector 9 is made by fitting or not fitting the plural fitting convex portions 20 of the main body 6 and the plural fitting recesses 35 of the miscellaneous collector 9 in this way. Since the amount of upward protrusion from the upper end of 6 can be adjusted in two stages, for example, unlike the conventional case, it is not necessary to prepare multiple types of different amounts of protrusion with respect to the main body 6 of the dust collecting body 9, and Even after the construction, it is possible to easily and appropriately change the upward protrusion amount of the miscellaneous matter collector 9 from the main body 6 as necessary.

  In addition, a plurality of drain holes 17 are formed in the cylindrical main body portion 11 of the main body 6 so as to penetrate the inner and outer peripheral surfaces of the cylindrical main body portion 11 at positions facing the inclined surface 15a that is the upper surface of the flange portion 15. For example, even if a small amount of rainwater enters the slight gap between the slab 2 and the outer peripheral surface of the cylindrical main body 11 of the main body 6 after the completion of construction, After being received by the inclined surface 15 a of the portion 15, it is guided from the inclined surface 15 a through the drain hole 17 into the cylindrical main body portion 11 of the main body 6, so that intrusion water travels around the outer periphery of the drainage device 1. Thus, it does not hang down on the outer periphery of the drain pipe 3.

  In addition, when pouring concrete, surplus water can be introduced into the cylindrical main body 11 of the main body 6 through the drainage hole 17 from the inclined surface 15a which is the upper surface of the flange 15, but if the drainage hole 17 is too large, There is a risk that the concrete may enter the cylindrical main body portion 11 of the main body 6 through the drain hole 17. Therefore, the drain hole 17 is formed to have a size of 5 mm square, for example, so that the entry of concrete is suppressed, and a small amount of concrete that has entered with the excess water can be easily peeled off by hand after curing. Yes.

  As shown in FIG. 11, the depth dimension of the fitting concave portion 35 and the vertical dimension of the fitting convex portion 20 are made slightly larger than those shown in FIG. The height position of the upper surface and the height position of the upper end of the main body 6 may be the same.

  Further, as shown in FIG. 12, in the projecting state in which the fitting convex portion 20 and the fitting concave portion 35 are disengaged and the foreign matter collecting body 9 is projected upward from the main body 6, the fitting is performed. A plurality of anti-rotation recesses 40 fitted to the upper ends of the mating protrusions 20 may be formed in the lower end of the side wall 31 so that the miscellaneous matter collector 9 does not rotate with respect to the main body 6.

  Further, for example, although not shown, it is also possible to adopt a configuration in which the amount of upward protrusion of the miscellaneous matter collector 9 from the main body 6 can be adjusted in three steps or more, or steplessly.

  Next, the construction method of the drainage device 1 will be described.

  The construction of the drainage device 1 is performed using, for example, a first auxiliary member 41 which is a construction auxiliary member shown in FIGS. 13 to 17 and a second auxiliary member 42 which is a construction auxiliary member shown in FIGS. 22, after fixing the main body 6, the pipe 7 and the socket 8 constituting the drainage device 1 to the concrete lower formwork 46 by operating the fixing means 43, the concrete upper formwork 47 is disposed, Thereafter, the ready-mixed concrete is poured into the space between the concrete lower mold 46 and the concrete upper mold 47.

  The fixing means 43 includes, for example, a vertically long rod-shaped member 51 having a male screw portion 50 formed on the entire outer peripheral surface, a butterfly screw member 52 that is a screw member screwed to the upper end side of the rod-shaped member 51, and a rod-shaped member. And a nut member 53 such as a hex nut screwed to the lower end side of 51.

  The first auxiliary member 41 is formed in, for example, a substantially circular shape in a plan view using, for example, a synthetic resin, and the outer diameter thereof is substantially the same as the inner diameter of the socket 8 (the inner diameter of the lower cylindrical portion 13 of the main body 6). The first auxiliary member 41 can be fitted into and removed from the inner peripheral side of the socket 8 (the inner peripheral side of the lower cylindrical portion 13 of the main body 6). An insertion hole portion 56 through which the rod-shaped member 51 is inserted is formed on the center side of the first auxiliary member 41, and a nut housing portion 57 is formed continuously with the insertion hole portion 56. The nut member 53 is fixedly accommodated in the nut accommodating portion 57. The bottom surface of the first auxiliary member 41 has a plurality of, for example, four screw holes 58 through which the fixing screw 60 is inserted and a plurality of, for example, two holes 59 having a larger diameter than the screw hole 58. Each is formed.

  The second auxiliary member 42 is formed in a substantially horizontally long shape in a plan view, for example, with a synthetic resin or the like, and the longitudinal dimension thereof is substantially the same as the inner diameter dimension of the cylindrical main body portion 11 of the main body 6. The main body 6 can be fitted into and removed from the inside of the cylindrical main body 11. An insertion hole portion 61 through which the rod-shaped member 51 is inserted is formed in the center portion in the longitudinal direction of the second auxiliary member 42. Further, the second auxiliary member 42 is formed with two concave groove portions 62 opening upward along the longitudinal direction of the second auxiliary member 42.

  When constructing the drainage device 1, first, as shown in FIG. 22, the first auxiliary member 41 is fixed to the concrete lower formwork 46 by the fixing screw 60. Next, the lower inner peripheral side of the socket 8 is fitted and connected to the outer peripheral side of the first auxiliary member 41, and the lower outer peripheral side of the pipe 7 is fitted and connected to the upper inner peripheral side of the socket 8. The inner peripheral side of the lower cylindrical portion 13 of the main body 6 is fitted and connected to the upper outer peripheral side of the main body 6, and the upper end surface of the pipe 7 is brought into contact with the lower surface of the protruding edge portion 22 of the main body 6.

  Next, the second auxiliary member 42 is fitted inside the cylindrical main body 11 of the main body 6, the lower end side is screwed into the nut member 53 in the nut accommodating portion 57 of the first auxiliary member 41, and the intermediate portion in the vertical direction is inserted. When the thumbscrew member 52 is screwed onto the upper end side of the rod-like member 51 inserted through the holes 56 and 61 and the thumbscrew member 52 is tightened, the main body 6, the pipe 7 and the socket 8 are attached to the concrete lower formwork 46. Fixed.

  Thereafter, the concrete upper mold 47 is disposed on the upper end of the cylindrical main body 11 of the main body 6, and then ready-mixed concrete is poured into the space between the concrete lower mold 46 and the concrete upper mold 47. After the concrete is hardened, the concrete lower mold 46 and the concrete upper mold 47 are removed, the first auxiliary member 41, the second auxiliary member 42 and the fixing means 43 are removed, and then the cylindrical main body 11 of the main body 6 is removed. The miscellaneous matter collector 9 is attached to the inner peripheral side of the.

  And when attaching the miscellaneous matter collector 9 to the main body 6, when the fitting convex part 20 of the main body 6 and the fitting concave part 35 of the miscellaneous substance collector 9 are fitted, as shown in FIG. When the collector 9 is in a non-projecting state in which it does not protrude upward from the main body 6 and the fitting convex portion 20 of the main body 6 and the fitting concave portion 35 of the miscellaneous collector 9 are not fitted, as shown in FIG. Thus, the miscellaneous matter collector 9 protrudes upward from the main body 6.

  As shown in FIG. 23, when the pipe 7 and the socket 8 are not used, the lower cylindrical portion 13 of the main body 6 is disposed on the outer peripheral side of the first auxiliary member 41 fixed to the concrete lower mold 46 with a fixing screw 60. On the other hand, a void pipe 65 is fitted and connected to the cylindrical main body portion of the main body 6.

  Then, the main body 6 is fixed to the concrete lower mold 46 by tightening the thumbscrew member 52, and then the concrete upper mold 47 is disposed on the upper end of the void pipe 65, and then the concrete lower mold Raw concrete is poured into the space between 46 and the concrete upper formwork 47. Then, after the concrete is hardened, the concrete lower mold 46 and the concrete upper mold 47 are removed, and the first auxiliary member 41, the second auxiliary member 42, and the fixing means 43 are removed. In addition, after removing the void pipe 65, concrete is shaved to form an inclined surface that slopes downward toward the upper end of the cylindrical main body portion 11 of the main body 6, and thereafter, the inside of the cylindrical main body portion 11 of the main body 6 is The miscellaneous matter collector 9 is attached to the peripheral side.

  Further, as shown in FIG. 24, when the second auxiliary member 42 is not used, the rod-like member 51 is inserted into the insertion hole 47a formed in the concrete upper form frame 47, and is moved upward from the concrete upper form form 47. The main body 6, the pipe 7 and the socket 8 are fixed to the concrete lower form frame 46 by screwing the thumbscrew member 52 into the upper end portion of the protruding bar-like member 51 and tightening the thumbscrew member 52.

  Thereafter, the ready-mixed concrete is poured into the space between the concrete lower mold 46 and the concrete upper mold 47, and after the concrete is hardened, the concrete lower mold 46 and the concrete upper mold 47 are removed, and the first auxiliary member 41 is removed. Then, the fixing means 43 is removed, and then the miscellaneous matter collector 9 is attached to the inner peripheral side of the cylindrical main body portion 11 of the main body 6.

  Note that the rod-like member 51 of the fixing means 43 is not limited to the one having the male threaded portion 50 formed on the entire outer peripheral surface, and may be, for example, the one having the male threaded portions formed only at both ends in the longitudinal direction.

  Further, as the fixing means 43, for example, a bolt member such as a hexagonal bolt in which a rod-like member 51 and a nut member 53 are integrated, and a butterfly screw member 52 that is screwed to the bolt member may be used.

It is sectional drawing in the time of the non-projection state of the drainage apparatus which concerns on one embodiment of this invention. It is sectional drawing in the time of the protrusion state of a drainage apparatus same as the above. It is a side view of the main body of a drainage device same as the above. It is a top view of the main body of a drainage device same as the above. It is a bottom view of the main body of a drainage device same as the above. It is VI-VI sectional drawing of the main body in FIG. It is a side view of the miscellaneous matter collector of a drainage device same as the above. It is a top view of the miscellaneous matter collector of a drainage device same as the above. It is a bottom view of the miscellaneous matter collector of a drainage device same as the above. It is XX sectional drawing of the miscellaneous matter collector in FIG. It is sectional drawing in the time of the non-protrusion state of the drainage apparatus which concerns on other embodiment. It is sectional drawing in the time of the protrusion state of the drainage apparatus which concerns on other embodiment. It is a top view of the 1st auxiliary member used at the time of construction of a drainage device. It is a bottom view of a 1st auxiliary member same as the above. It is AA sectional drawing of the 1st auxiliary member in FIG. It is BB sectional drawing of the 1st auxiliary member in FIG. It is CC sectional drawing of the 1st auxiliary member in FIG. It is a top view of the 2nd auxiliary member used at the time of construction of a drainage device. It is a bottom view of a 2nd auxiliary member same as the above. It is DD sectional drawing of the 2nd auxiliary member in FIG. It is EE sectional drawing of the 2nd auxiliary member in FIG. It is sectional drawing which shows the state at the time of construction of a drainage apparatus. It is sectional drawing which shows the state at the time of construction of a drainage apparatus. It is sectional drawing which shows the state at the time of construction of a drainage apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drainage device 3 Drainage pipe 6 Main body 9 Miscellaneous thing collection body
11 Tubular body
15 Buttocks
17 Drain hole
20 Fitting convex part which is the main body side fitting part
35 Fitting recess that is the collector-side fitting part

Claims (3)

A drainage device that accepts rainwater and discharges it into a drainpipe,
A main body having a cylindrical main body for receiving rainwater and a flange protruding from the outer peripheral surface of the cylindrical main body;
It is attached to this main body, and includes a miscellaneous matter collector for preventing miscellaneous matters such as garbage from entering the drain pipe,
In a position facing the upper surface of the flange portion in the cylindrical main body portion, a drain hole is formed in a state of penetrating the inner and outer peripheral surfaces of the cylindrical main body portion,
The drainage device characterized in that the amount of upward protrusion of the miscellaneous matter collecting body from the main body can be adjusted. The main body has a main body side fitting portion,
The miscellaneous matter collector has a collector-side fitting portion that fits detachably with the body-side fitting portion,
In a state where the main body side fitting portion and the collector side fitting portion are fitted, the upper surface of the miscellaneous matter collector is located at substantially the same height as the upper end of the main body,
In a state where the fitting between the main body side fitting portion and the collector side fitting portion is released, the upper surface of the miscellaneous matter collector is positioned at a height position higher than the upper end of the main body. The drainage device according to claim 1. The main body side fitting portion of the main body is a plurality of fitting convex portions protruding from the inner peripheral surface of the cylindrical main body portion,
The drainage device according to claim 2, wherein the catcher side fitting portion of the miscellaneous matter collector is a plurality of fitting recesses formed in a lower portion of the miscellaneous matter collector and opened downward. .

Images