JPS623461Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a drainage collection device installed on the roof of a building to collect and drain rainwater that accumulates on the roof of a building.

Conventionally, in order to drain rainwater that accumulates on the roof of a building, first, a drainage fitting is fitted into the drainage hole opened on the floor of the roof, and the end of a waterproof sheet spread on the roof floor is attached to the drainage fitting. Glue was attached so that the water flowing on the tarpaulin sheet can be drained from the drainage fitting.

However, since conventional drainage fittings were usually made of cast iron, their surfaces had the unevenness characteristic of cast iron products. Moreover, since the surface of the waterproof sheet is usually painted black or other colors, the tarpaulin sheet does not stick tightly and is insufficiently adhered, resulting in the tarpaulin separating during use and allowing rainwater to enter between the tarpaulin sheet and the drainage fitting. However, it flowed onto the concrete floor and caused a leak.

The purpose of the present invention is to provide a drain collection device that has a smooth surface of the metal fittings to improve the adhesion of the waterproof sheet, provides a gap for filling with sealant, etc., and is equipped with a dustproof cap to prevent dust from entering. That is.

Next, one embodiment of the present invention will be described based on the drawings. In the figure, reference numeral 1 indicates a concrete floor wall on the roof of a building, etc., and a drainage port 2 is provided through a part of the floor wall. Reference numeral 3 denotes the main body (hereinafter simply referred to as the main body) of the water collection device fitted into the drain port 2, which is a bendable metal plate made of stainless steel, light alloy, etc. It is formed into a funnel shape with a sloped surface with a stepped portion on the inside. That is, an inclined surface 4 with a gentle inclination angle that descends inward from the upper edge is provided, followed by a steeply inclined surface 5 that descends at a steep angle, and then a mortar-shaped surface with a gentle inclination angle is provided. A sloped surface 6 is provided, the lower end of which is connected to the central tube section 7. 8
8 are four screw rods installed on the inclined surface 6, and are provided at positions that divide the circumference into four equal parts.

The presser metal fitting 9 is attached to the inner peripheral side of the funnel-shaped main body 3, and is made of a metal plate made of stainless steel, light alloy, etc., which can be bent and has a smooth surface. There is. Presser metal fitting 9
The body as a whole has a funnel shape corresponding to the main body 3, and has a gently sloped part on the inner circumferential side that comes into close contact with the sloped surface 6 of the main body 3, and between this gently sloped part and the sloped surface 6. A waterproof sheet 21 is attached under pressure.

In addition, by making the outer circumferential wall of the gently sloped portion rise inwardly from the steeply sloped surface 5 over the entire circumference, a gap 10 can be created between the wall portion and the steeply sloped surface 5.
This rising wall portion is provided at four substantially vertical vertical surfaces 11 provided at positions dividing the circumference into four equal parts, and at four positions between these vertical surfaces 11, The wall portion further includes curved portions 12 that bulge inward and are formed alternately and continuously. Therefore, as shown in FIG. 5, the gap 10 is enlarged at the portion where the curved portion 12 is formed, and a recess 13 is formed between the gently sloped portion and the curved portion 12.

As shown in FIG. 7, four equally spaced holes are provided in the gently inclined portion, through which the threaded rod 8 passes through and is tightened with a nut 20, as shown in FIG. At the inner peripheral end and the outer peripheral end of the main body 3, there are provided a downstream opening 14 and a gently sloped part which can overlap with the tube part 7 and the sloped surface 4, respectively.

When installing the drain collection device of this example on the roof of a building, etc., the main body 3 is first fitted into the drain port 2 provided in the floor wall 1 of the roof. In this case, the shape of the drain port 2 is formed to match the shape of the bottom surface of the main body 3 so that the bottom surface of the main body 3 is in close contact with the bottom surface of the main body 3, as shown in FIG. or below. Next, a waterproof sheet 21 is laid on the floor, and its ends are overlapped around the upper part of the main body 3. Next, the presser metal fitting 9 is placed on top of the main body 3, and the hole 15 provided through the presser metal fitting 9 is inserted into the main body 3.
, and screw the nut 20 onto the screw rod 8 to tighten the presser metal fitting 9. In this case, the waterproof sheet 21 is sandwiched and crimped between the presser metal fitting 9 and the upper part of the main body 3, and the gap 10 created in front of the vertical surface 11 of the main body 3 is filled with a sealing material.

Next, the four protrusions 17 of the dustproof cap 16 are lowered to align with the vertical surface 11 of the presser metal fitting 9, and
When rotated about 1/8, the protruding piece 17 fits into the recess 13 below the curved part 12 of the main body 3, and the dustproof cap 16 is locked and will not come off. When detaching, the dustproof cap 16 can be easily detached by rotating 1/8 turn in either the left or right direction. Note that there is a drain pipe 1 in the pipe section 7 at the bottom of the main body 3.
Insert 9.

When rainwater accumulates on the floor of the roof, it flows over the waterproof sheet 21 and reaches the drain pipe, and the rainwater that enters the holding metal fitting 9 flows downward from the long opening 18 of the dustproof cap 16 and flows into the drain pipe 19. The water is then drained. In this case, large debris is blocked by the dustproof cap 16 and does not flow down, thereby preventing clogging of the drain pipe 19. Additionally, if the drain pipe becomes clogged, the dustproof cap can be removed and cleaned.

The main body 3 and the presser metal fitting 9 may be formed of other materials, such as brass plates, as long as the surfaces are smooth and bendable metal plates. From this point of view, in particular, the vertical surface 11 and curved portion 12 of the presser metal fitting 9 can be easily formed by simple bending or protrusion processing.

As mentioned above, the water collection device installed on the rooftop of the present invention is made of a material with a smooth surface such as a steel plate, so the surface is smooth and the waterproof sheet has good adhesion. Furthermore, since the waterproof sheet is clamped between the main body and the presser fitting, it is possible to prevent the waterproof sheet from coming off. In addition, there is a gap between the main body and the presser fitting, which can be filled with sealant, etc., which prevents water leakage and improves the adhesion of the waterproof sheet. And there is no chance of leaving.

In addition, a dust-proof cap is provided in a removable manner, and water is drained through a long opening in the cap.
It is possible to prevent garbage and foreign matter from flowing down, and it is possible to prevent clogging of drain pipes. As described above, the present invention has a number of features and is an excellent practical device for collecting and draining rainwater on rooftops and the like.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Figure 1 is a front view of the drainage and drainage equipment of the present invention installed on a concrete floor on the roof of a building; Figure 2 is a sectional view thereof;
Fig. 3 is a plan view, Fig. 4 is a sectional view taken along the line A-A in Fig. 3, Fig. 5 is a sectional view taken along the line B-B in Fig. 3, Fig. 6 is a perspective view of the dustproof cap, and Fig. 7 is a sectional view taken along the line A-A in Fig. 3. The figure is a perspective view of the presser fitting. 2... Drain port, 3... Main body of water collection device, 9...
Presser fitting, 10...Gap, 16...Dust-proof cap, 18...Long mouth.

Claims (1)

[Scope of Claim for Utility Model Registration] A main body of a water collecting and draining device that is formed into a substantially funnel shape and is fitted into a drainage outlet on the roof of a building, a presser fitting that is attached to the funnel-shaped inclined part of the main body, and the presser foot. A water collecting and draining device equipped with a dust-proof cap that is detachably attached to a metal fitting, wherein the main body and the holding metal fitting are formed using a metal plate material with a smooth surface and which can be bent. A gently inclined surface for clamping the waterproof sheet on the circumferential side and a steeply inclined surface on the outer circumferential side are provided around the entire circumference, and a gently inclined part that can come into close contact with the gently inclined surface is also provided on the inner circumferential side of the presser metal fitting around the entire circumference. Furthermore, the outer circumferential side of the presser fitting is formed in an upright shape so as to form a gap for filling the sealant between it and the steep slope of the main body over the entire circumference, and
A water collection and drainage device installed on a rooftop or the like, characterized in that a part of the rising wall portion is bulged inward to form a curved portion for attaching a dustproof cap.