JP3130481B2 - Building drainage structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure of a building, which can prevent flooding of a floor at a drainage portion of the building and leakage of water from the floor and can greatly extend the useful life of the building. Things.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a drainage structure of a conventional building veranda or the like. A lower drainage pipe 2 is provided on a floor 1 such as mortar constituting a veranda or the like of a building. A through hole 3 for piping is formed in the vertical direction, and a shallow groove 4 is formed along the periphery at the upper end edge of the through hole 3.

Reference numeral 5 denotes a drain made of an aluminum alloy or a synthetic resin. The drain 5 has a truncated conical shape whose diameter decreases downward, and is formed of the lower drain pipe 2 inserted into the through hole 3. A drain pipe 6 inserted and connected to the upper end is provided at the center, and an annular shape is formed on the outer periphery of the upper end (large diameter side) of the drain pipe 6 so as to protrude radially outward and fit into the shallow groove 4. The large diameter portion 7 is provided.

On the lower surface of the large diameter portion 7 of the drain 5, a plurality of projections 8 are provided downward at equal intervals, and the upper end of a screw rod 9 is screwed to the projections 8 in a vertical state. The lower end of the screw rod 9 passes through the through hole 12 of the clamp plate 11 installed on the lower surface of the floor 1 with the lower drain pipe 2 vertically passing through the central passage hole 10. Yes,
The drain 5 is fixed to the floor 1 while the floor 1 is clamped from both the upper and lower sides by screwing and tightening a nut 13 to an end of the screw rod 9 protruding from the clamp plate 11.

Further, a waterproof sheet 14 made of vinyl chloride or rubber is coated from the upper surface of the large diameter portion 7 of the drain 5 to the upper surface of the floor 1, and the lower surface of the waterproof sheet 14 is covered with the large diameter portion 7 of the drain 5. And a pedestal 15 having a water passage hole 16 in the center is fixed to the upper surface of the large-diameter portion 7 of the drain 5 with the waterproof sheet 14 interposed therebetween. The pedestal 15 is fixed at a plurality of locations on the upper part of the drain 5 by bolts 17.

On the upper side of the pedestal 15, there is formed a projection 18 whose central portion is projected upward, and a required drainage inlet 19 is formed on the peripheral surface of the projection 18; A drain cover 22 having a flange 21 formed at the lower end so as to be fixed to the base 15 with a bolt 20 is provided.

In the drain port structure shown in FIG.
Water such as rainwater that has fallen on the floor 1 such as a veranda enters the drain cover 22 through the drain inlet 19 of the drain cover 22 and flows into the lower drain pipe 2 from the drain pipe 6 of the drain 5.
Fall.

However, in the conventional drain port structure shown in FIG. 3, the upper surface of the large diameter portion 7 of the drain 5 and the floor 1
Sheet 14 adhered to the upper surface of the sheet with a curable adhesive
The pedestal 15 is fixed by bolts 17 so as to press the waterproof sheet 14, and the drain cover 22 is fixed by bolts 20 on the pedestal 15, so that the number of parts is large. When the bolt 20 is tightened when the drain cover 22 is fixed, the pedestal 15 receives rotational force, and the waterproof sheet 14 is distorted or has wrinkled irregularities. The pedestal 15 is bent by the tightening of the bolts 20, and the force with which the pedestal 15 presses the waterproof sheet 14 becomes uneven, so that the upper surface of the large diameter portion 7 of the drain 5 and the waterproof sheet 1
In some cases, the bonded portion with the curable adhesive 4 may peel off.

Also, there is a case where a tree branch or the like enters the drain 5 and gets caught and dust or the like clings to the branch, so that the drain 5 is blocked. In such a case, the bolt 5 is used. Loosen 20 and drain cover 2
2 needs to be removed from the drain 5 to remove the obstruction blocking the drain 5. As described above, the bolt 20 is loosened to remove the drain cover 22, or the bolt 20 is removed again after the obstruction is removed. As described above, when the drain cover 22 is fixed, the pedestal 15 receives a rotational force as described above, or the pedestal 15 is distorted, and the force pressing the waterproof sheet 14 becomes non-uniform. The adhesive part between the upper surface of the part 7 and the waterproof sheet 14 may come off.

Even if the adhesive portion between the upper surface of the large diameter portion 7 of the drain 5 and the waterproof sheet 14 is slightly peeled, drainage flows through the gap to the floor 1 by capillary action, and permeates the floor 1 to leak water. Occurs, and at the same time, the floor 1 becomes brittle and its useful life is greatly reduced.
, Causing a problem that it is not aesthetically pleasing.

Therefore, in recent years, a drain port structure having a double seal structure as shown in FIG. 4 has been proposed. FIG.
The same components as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 4, the drain pipe 6 constituting the drain 23 is inserted and fixed to the upper end of the lower drain pipe 2 inserted into the through hole 3 via a joint 24. An annular flange 25 protruding downward is formed on the outer peripheral end of the large diameter portion 7.

The drain pipe 6 of the drain 23 to the large diameter section 7
As shown in FIG. 5, a fixing plate 26 extending in the vertical direction at equal intervals in the circumferential direction is provided on the outer side surface connected to the fixing plate 26. The fixing plate 26 is fixed through the fixing plate 26 in the thickness direction so that both ends are fixed. A protruding fixing rod 27 is provided.

Reference numeral 28 denotes a fixing protrusion having screw holes 29 provided at equal intervals in the circumferential direction on the inner upper surface of the large-diameter portion 7 of the drain 23. Above the fixing protrusion 28, a plurality of fixing protrusions are provided on the peripheral surface. A drain cover 30 having a projection 18 having a drainage inlet 19 and a flange 21 is attached by a fixing screw 31. In FIG. 4, reference numeral 3a denotes a cylindrical frame in which the through hole 3 is formed.

In the above structure, mortar is cast on the outer periphery of the cylindrical frame 3a to fix the fixing plate 26 of the drain 23.
And the fixing rod 27 is buried in the mortar, and the upper surface of the mortar is flush with the upper surface of the large-diameter portion 7 of the drain 23, so that the mortar is solidified to form the floor 1. .

The joints 24 are filled in the gaps formed by the solidification of the mortar on the outer peripheral surface of the flange 25 buried in the upper surface of the floor 1. Thereby, the drain 23
The floor 1 that is flush with the upper surface of the large diameter portion 7 is formed.

Next, as shown in FIGS. 4 and 6, the floor 1 extending from the radially intermediate portion (outside the fixed convex portion 28) of the large diameter portion 7 of the drain 23 to the large diameter portion 7 through the joint 24 is connected. Is provided with a rubber-made (vulcanized rubber) packing sheet 32 having an annular shape so as to cover the upper surface portion of the drain member 23. Is fixed by using an elastic rubber adhesive 33.

Further, a waterproof sheet 34 made of vinyl chloride or rubber is provided on the upper surface of the packing sheet 32 and the upper surface of the floor 1 so as to cover the waterproof sheet 34.
The upper surface of the packing sheet 32 is bonded and fixed with a non-curable rubber adhesive 33, and the upper surface of the floor 1 is bonded and fixed with a curable adhesive 35.

As shown in FIG. 4, the drain cover 30 is disposed on the waterproof sheet 34 bonded and fixed as described above, and the drain cover 30 is fixed to the drain 23 with the fixing screw 31.

In the configuration shown in FIGS. 4 to 6, the rubber packing sheet 32 having an annular shape extends from the radially intermediate portion of the large diameter portion 7 of the drain 23 fixed to the floor 1 to the upper surface of the floor 1. The waterproof sheet 34 is adhered from the upper surface of the packing sheet 32 to the upper surface of the floor 1 with the non-curable rubber adhesive 33, and is adhered to the upper surface of the packing sheet 32 with the non-curable rubber adhesive 33. By fixing the adhesive to the upper surface of the floor 1 with a curable adhesive 35 to form a double seal structure, the waterproof effect on the peripheral portion of the drain 23 of the floor 1 is improved.

According to the configuration shown in FIGS. 4 to 6, there is an advantage that the pedestal can be omitted from the configuration shown in FIG. 3, so that the cost can be reduced.

[0022]

However, in the conventional drain port structure shown in FIGS. 4 to 6, since the rubber packing sheet 32 is used, the rubber packing sheet 32 is deformed by expansion and contraction. On the other hand, there is a problem that it deteriorates with time and cracks occur,
When a force is applied to the cracked packing sheet 32, a gap is formed in the cracked portion due to the deformation, and there is a problem that water permeates through this gap to deteriorate the sealing property. Then, there have been problems that water leaks from the floor 1, the floor 1 becomes brittle, the service life is greatly reduced, and spots are formed on the outside (lower surface) of the floor 1, which is not preferable in aesthetic appearance.

In addition, when the rubber packing sheet 32 is bonded using a curable adhesive, there is a problem that the packing sheet 32 is peeled off due to elastic deformation of the packing sheet 32. Only non-curable rubber adhesives can be used, but such non-curable rubber adhesives have the problem of moving when a force is applied, and non-curable rubber adhesives generally have a higher adhesive strength than curable adhesives. Had a problem that it was easily peeled off because of its small size.

The present invention has been made in view of the above circumstances, and completely seals the upper surface of a floor from a drain upper surface to prevent water from penetrating into a floor such as a wooden mortar, thereby greatly extending the service life of the floor. It is intended to provide a drainage structure of a building that can be extended.

[0025]

According to a first aspect of the present invention, there is provided a funnel-shaped drain having a downwardly directed drain pipe portion at a central portion and a large diameter portion connected to an upper end of the drain pipe portion. An annular PVC reinforcing sheet is fixed to the floor so that the portion is located on the upper surface of the floor, and is covered from the radially intermediate portion of the large-diameter portion of the drain to the upper surface of the floor outside the periphery of the large-diameter portion. Along with bonding to the large diameter portion of the drain and the floor, the PVC waterproof sheet disposed from the upper surface of the PVC reinforcing sheet to the upper surface of the floor is fixed to the PVC reinforcing sheet by heat fusion. It relates to a drainage structure of a building, which is a characteristic.

According to a second aspect of the present invention, there is provided a building as set forth in the first aspect, wherein a PVC reinforcing sheet is integrally bonded on a large diameter portion of the drain with a curable adhesive in advance. Drainage structure.

According to the first aspect of the present invention, the PVC reinforcing sheet disposed on the upper surface of the floor outside the periphery of the large-diameter portion of the drain from the radially intermediate portion of the large-diameter portion of the drain is drained by the curable adhesive. Because it is glued to the large diameter part and floor of
By curing the curable adhesive, the PVC reinforced sheet can be integrally fixed to the large-diameter portion and the floor of the drain, and further,
Since the PVC waterproof sheet made of polyvinyl chloride, which is arranged from the upper surface of the PVC reinforcing sheet to the upper surface of the floor, is integrally fixed on the PVC reinforcing sheet by heat fusion, the PVC reinforcing sheet and the PVC waterproof sheet are completely The seal between the upper surface of the drain and the upper surface of the floor can be surely performed because it is not integrated and peeled off.

Further, since the sealing between the drain upper surface and the floor upper surface is performed using a PVC reinforcing sheet and a PVC waterproof sheet, there is no problem of deterioration as in the conventional rubber packing sheet. It is possible to completely seal the space between the drain upper surface and the floor upper surface for a long period of time, thereby completely preventing water from penetrating into a floor such as a wooden mortar, and thus draining the floor with a drain port. While eliminating the penetration of water or leakage from the floor,
The useful life of the floor can be greatly extended, and the appearance of stains due to water leakage or the like can be eliminated to improve the aesthetic appearance of the building.

According to the second aspect of the present invention, the work of bonding the PVC reinforcing sheet to the large-diameter portion of the drain with a curable adhesive at a factory or the like is performed, so that the large-diameter drain can be achieved. The work of bonding the PVC reinforced sheet on the part can be performed reliably and efficiently, and the work of bonding the PVC reinforced sheet on the large-diameter portion of the drain on site can be omitted, so the work on site can be simplified. .

[0030]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a detailed example of the portion A in FIG. 4 showing the embodiment of the first aspect of the present invention.
In the same manner as described above, a funnel-shaped drain 23 having a downward drain pipe 6 in the center and a large diameter section 7 connected to the upper end of the drain pipe 6 is provided. It is fixed to the floor 1 so as to be located on the upper surface.

On the upper surface of the floor 1 from the radially intermediate portion of the large-diameter portion 7 of the drain 23 to the outer periphery of the large-diameter portion 7, a vinyl chloride-made annular PVC reinforcing sheet 36 is arranged.
The PVC reinforcing sheet 36 is formed by a curable adhesive 37 such as a urethane-based resin or a polyvinyl chloride-based resin.
Is bonded to the large diameter portion 7 and the floor 1.

Further, a PVC waterproof sheet 38 made of vinyl chloride extends from the upper surface of the PVC reinforcing sheet 36 to the upper surface of the floor 1.
The PVC waterproof sheet 38 is adhered to the upper surface of the floor 1 by a curable adhesive 37 such as urethane resin or polyvinyl chloride as described above,
Further, the PVC waterproof sheet 38 is provided with the PVC reinforcing sheet 3.
6 are integrally fixed by a fusion portion 40 thermally fused using a thermal iron 39.

When melting is performed using the heat iron 39, the upper surface of the PVC reinforcing sheet 36 and the lower surface of the PVC waterproof sheet 38 form a completely integrated fused portion 40. And the PVC waterproof sheet 38 does not peel off at all.

As described above, the PVC reinforcing sheet 36 disposed on the upper surface of the floor 1 from the radially intermediate portion of the large diameter portion 7 of the drain 23 to the outer periphery of the large diameter portion 7 is attached to the drain 23 by the curable adhesive 37. Is bonded to the large-diameter portion 7 and the floor 1, so that the curable adhesive 37 is cured, so that the PVC reinforcing sheet 36 is integrally fixed to the large-diameter portion 7 of the drain 23 and the floor 1. Thus, the seal between the upper surface of the large diameter portion 7 of the drain 23 and the upper surface of the floor 1 is reliably performed.

Further, a PVC waterproof sheet 38 made of vinyl chloride, which is disposed from the upper surface of the PVC reinforcing sheet 36 to the upper surface of the floor 1, is integrally bonded on the PVC reinforcing sheet 36 by using a hot iron 39. By fixing, the PVC reinforcing sheet 36 and the PVC waterproof sheet 38 can be completely integrated at the fusion portion 40, thereby completely preventing the PVC sheet from peeling off, and therefore, the upper surface of the drain 23 and the upper surface of the floor 1. Can be reliably performed.

Further, since the sealing between the upper surface of the large diameter portion 7 of the drain 23 and the upper surface of the floor 1 is performed using the PVC reinforcing sheet 36 and the PVC waterproof sheet 38, a conventional rubber packing sheet is used. Thus, the sealing between the upper surface of the drain 23 and the upper surface of the floor 1 can be completely performed over a long period of time, thereby completely preventing the permeation of water into the floor 1 such as a wooden mortar. do it,
The service life of the floor can be greatly extended.

FIG. 2 shows an embodiment of the second aspect of the present invention, in which an annular PVC reinforcing sheet 36 is previously adhered to the large diameter portion 7 of the drain 23 with a curable adhesive 37. 1 shows a configuration that can be used.

According to the structure shown in FIG.
The PVC reinforcing sheet 36 is placed on the large diameter portion 7 of the hardening adhesive 3.
By performing the work of bonding and fixing using 7,
The work of bonding the PVC reinforcing sheet 36 on the large diameter portion 7 of the drain 23 can be performed reliably and efficiently, and the work of bonding the PVC reinforcing sheet on the large diameter portion 7 of the drain 23 at the site can be performed. Since it can be omitted, on-site work can be simplified.

[0040]

As described above, according to the first aspect of the present invention, the PVC reinforcing sheet 36 disposed on the floor upper surface from the radially intermediate portion of the large diameter portion of the drain to the outside of the periphery of the large diameter portion of the drain. Is bonded to the large-diameter portion of the drain and the floor with a curable adhesive, so that the PVC reinforcing sheet can be integrally fixed to the large-diameter portion of the drain and the floor by curing of the curable adhesive, and further, Since the PVC waterproof sheet made of polyvinyl chloride, which is arranged from the upper surface of the PVC reinforcing sheet to the upper surface of the floor, is integrally fixed on the PVC reinforcing sheet by heat fusion, the PVC reinforcing sheet and the PVC waterproof sheet are completely Since there is no possibility of being integrated and peeling off, there is an effect that the seal between the drain upper surface and the floor upper surface can be reliably performed.

Further, since the sealing between the drain upper surface and the floor upper surface is performed using a PVC reinforcing sheet and a PVC waterproof sheet, there is no problem of deterioration as in the conventional rubber packing sheet. It is possible to completely seal the space between the drain upper surface and the floor upper surface for a long period of time, thereby completely preventing water from penetrating into a floor such as a wooden mortar, and thus draining the floor with a drain port. While eliminating the penetration of water or leakage from the floor,
The useful life of the floor can be greatly extended, and the appearance of stains due to water leakage or the like can be eliminated, and the aesthetic appearance of the building can be improved.

According to the second aspect of the present invention, the work of bonding the PVC reinforcing sheet to the large diameter portion of the drain with a curable adhesive at a factory or the like is performed, so that the large diameter of the drain can be achieved. The work of bonding the PVC reinforced sheet on the part can be performed reliably and efficiently, and the work of bonding the PVC reinforced sheet on the large-diameter portion of the drain on site can be omitted, so the work on site can be simplified. effective.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the invention described in claim 1;
FIG. 3 is a cross-sectional view showing a detailed example of a portion A of FIG.

FIG. 2 is a sectional view of a drain showing an embodiment of the invention described in claim 2;

FIG. 3 is a longitudinal sectional view showing an example of a conventional drainage structure of a building.

FIG. 4 is a longitudinal sectional view showing another example of a drainage structure of a conventional building.

FIG. 5 is a view in the direction of arrows VV in FIG. 4;

FIG. 6 is a sectional view showing details of a portion A in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor 6 Drainage pipe part 7 Large diameter part 23 Drain 36 PVC reinforcement sheet 37 Curable adhesive 38 PVC waterproof sheet

Claims (2)

(57) [Claims] 1. A funnel-shaped drain having a downwardly directed drain pipe portion at a central portion and a large diameter portion connected to an upper end of the drain pipe portion is fixed to the floor such that the large diameter portion is located on the upper surface of the floor, An annular PVC reinforcing sheet covering from the radially intermediate portion of the large-diameter portion of the drain to the floor upper surface outside the periphery of the large-diameter portion is bonded to the large-diameter portion and the floor of the drain with a curable adhesive. A drain port structure for a building, wherein a PVC waterproof sheet disposed from the upper surface of the PVC reinforcing sheet to the upper surface of the floor is fixed to the PVC reinforcing sheet by heat fusion. 2. The drainage structure for a building according to claim 1, wherein a polyvinyl chloride reinforcing sheet is integrally bonded to the large diameter portion of the drain with a curable adhesive in advance.