JP2007211539A - Drain device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain and enhance waterproof performance around a drain and to improve working efficiency while achieving smooth and appropriate drain by maintaining the smooth surface of a waterproof layer, and bringing the waterproof layer into required and sufficient close contact with backing at the peripheral edge of the drain. <P>SOLUTION: This drain device 23 is provided with a drain body 21 having a flange part 25 at the opening edge of a pipe part 24 connected to a drain pipe; a drain cover 22 put on the upper part of the drain body 21; and a mounting device 23 for the drain body 21. The mounting device 23 is composed of a pan 26 abutting on the edge of the flange part 25 to surround it and forming a continuous face with the surface of the flange part 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a vertical pulling device and a horizontal pulling drain device installed on a horizontal portion such as a rooftop floor surface.

There is known a deck plate base heat insulating roof construction method in which a roof is formed by laying a heat insulating plate on a deck plate and further waterproofing the heat insulating plate.

Since the roof formed by this construction method is a substantially flat land roof surrounded by parapets, a roof drain for rainwater drainage is installed on the roof.

Conventionally, such a roof drain is shown in FIG.
The drain main body 1 includes a circular flange portion 2 and a drain pipe portion 4 coupled downward so as to surround a drain hole 3 opened at the center of the flange portion 2. 1 is fixed on the deck plate 6 by a rectangular fixing bracket 5 extending outward from the rear surface of the edge of the flange portion 2. Note that the fixing bracket 5 is fixed to the flange portion 2 by a fixture 7.

On the upper surface of the flange portion 2, a waterproof layer presser 10 that holds the edge portion of the waterproof sheet layer 9 formed on the deck plate 6 via the heat insulating layer 8 is screwed to the flange portion 2. A drain cover 11 having a large number of water passage gaps is disposed on the layer presser 10, and a collar portion 12 at the lower end thereof is screwed to the waterproof layer presser 10.

In addition, the following documents exist in relation to the above.
JP 2004-197512 A JP2003-321907 JP 2003-113664 A JP2002-276097 JP-A-11-81580 JP-A-11-172863

However, in the above prior art shown in FIG. 8, the flange portion 2 of the drain main body 1 is placed on the fixing bracket 5, and a step is inevitably generated, so that water tends to accumulate in the step portion. In addition to poor drainage, the waterproof layer is likely to deteriorate. Such inconvenience is eliminated in the case where the outer heat insulating layer 8 is formed as shown in FIG. X. In this case, the end of the outer heat insulating layer 8 abuts on the outer peripheral edge of the flange portion 2 or extends to the vicinity thereof. I have to take the structure to make it happen. However, with such a configuration, the end of the waterproof sheet layer 9 will fit directly into the flange portion 2 without being in close contact with the underlying deck plate 6, maintaining appropriate water tightness and making it difficult to perform efficient construction. Become.
The invention of the present application maintains the waterproof layer surface smoothly at the drain periphery and realizes smooth drainage by allowing the waterproof layer to be in close contact with the base as much as necessary, maintaining and strengthening waterproof performance around the drain and construction It is intended to improve the performance.

  The present invention relates to a drain device, a drain main body having a flange portion on the outer periphery of an opening end of a pipe portion connected to a drain pipe, a drain cover attached to the upper portion of the drain main body, and a drain main body mounting device. The mounting device is intended to solve the above-described conventional problems by comprising a receiving plate that abuts and surrounds the flange portion edge and forms a continuous surface with the surface of the flange portion.

Further, in the above drain device, the tray and the flange portion fixed to the drain device mounting surface are fixed by fixing means, and the fixing means is screw fixing through a screw hole formed on the back surface of the flange portion, or There is a case where it is configured by welding connection between the flange portion end edge and the receiving end edge contacting and surrounding the flange portion end edge.

Further, in any one of the above drain devices, a waterproof layer presser is continuously provided on the outer periphery of the lower end of the drain cover, and the waterproof layer end is sandwiched and fixed between the waterproof layer presser and the flange portion of the drain body. A drain device characterized by that.

Furthermore, in any of the above drain devices, a heat insulating material may be fixed to the back surface of the tray.

The present invention further provides a so-called horizontal pulling type drain device for draining in a horizontal direction to a drain pipe formed on a wall surface disposed at a corner portion where a horizontal ground plane and a vertical wall surface intersect. A drain body having a flange portion on an outer periphery of an opening end of a pipe portion connected to the drain pipe, and a drain body attaching device, wherein the flange portion is formed on an outer periphery of the opening end of the pipe portion. The vertical edge portion and the horizontal edge portion formed integrally therewith have a substantially L-shaped cross section, and the drain body mounting device has a vertical saucer portion secured to the wall surface and a horizontal saucer secured to the ground surface. And the vertical edge portion and the horizontal edge portion of the flange portion in the drain body are respectively connected to the vertical saucer portion and the horizontal saucer portion of the attachment device. Providing a drain device fitted comprising such surfaces are continuous to address the above problems, an object.

Further, in the above drain device, the mounting device fixed to the drain device mounting surface and the flange portion are fixed by fixing means, and the fixing means is screw fixing through a screw hole formed on the back surface of the flange portion, Or it may be comprised by the welding connection of the flange part edge and the said attachment apparatus edge which contacts and surrounds this.

Furthermore, in any one of the above drain devices, a waterproof layer press is interposed between the outer peripheral edge of the lower end of the drain cover attached to the flange portion and the flange portion, and the waterproof layer press and the drain main body are The waterproof layer end may be sandwiched and fixed between the flange portion and the flange portion.

In any one of the drain devices, a heat insulating material may be fixed to the back surface of the attachment device.

Due to the above-described configuration and action, the present invention has the following effects.
1. Since the flow path from the waterproof layer to the drain hole is formed on a flat surface, there is no stagnation of water around the drain, smooth drainage is performed, and the fear of deterioration of the waterproof layer can be eliminated.
2. In forming the outer heat insulating layer on the drain attachment surface, the waterproof layer can be fixed to the attachment surface (base) with a sufficient area around the drain, so that the water tightness around the drain can be ensured.
3. Since the start end of the heat insulating layer around the drain can be set at a sufficient distance from the drain body, workability and construction accuracy are also improved.

The present invention can be applied to both so-called vertical pulling and horizontal pulling in a drain device.
The vertical drain device is attached to a drain body having a flange portion on the outer periphery of an opening end of a pipe portion connected to a drain pipe formed in communication with a base (floor surface) opening portion and an upper portion of the drain body. A drain cover and a drain body attachment device are provided, and the attachment device is constituted by a tray that contacts and surrounds the flange portion end edge of the drain body to form a continuous surface with the surface of the flange portion. The tray is formed of a substantially rectangular metal plate having a through-hole having the same shape as the outer periphery of the flange portion at the center, and the flange portion is fitted into the through-hole.
And the surface of a flange part and the surface of a saucer are comprised so that it may become a continuous flat surface. The flange portion and the tray may be fixed by screws, but if the flange portion end edge and the through-hole end edge of the tray that contacts and surrounds the flange portion are welded, the watertightness of the both becomes firm.
Further, a support member is provided on the back surface of the tray that is fixed to the base (floor surface), and the drain main body is attached and fixed to the support member through a screw hole formed on the back surface of the flange portion.

Further, a waterproof layer holder is continuously provided on the outer periphery of the lower end of the drain cover, and the waterproof layer end is sandwiched and fixed between the waterproof layer holder and the flange portion of the drain body. And when forming a heat insulation layer in a foundation | substrate (floor surface), the complicated operation | work which forms a heat insulation layer in a drain main body at a construction site can be avoided by spraying a heat insulating material beforehand on a saucer back surface.

In addition, a so-called horizontal pull type drain device that is disposed at a corner portion where a horizontal ground plane and a vertical wall surface intersect, and drains the drain pipe formed on the wall surface in the horizontal direction, A drain main body having a flange portion on the outer periphery of the open end of the pipe portion connected to the drain pipe, and a drain body attaching device, wherein the flange portion is a vertical edge formed on the outer periphery of the open end of the pipe portion And a horizontal edge formed integrally therewith, the cross section is substantially L-shaped, and the attachment device of the drain body is composed of a vertical saucer fixed to the wall surface and a horizontal saucer fixed to the ground surface. The The vertical saucer portion and the horizontal saucer portion fixed to the base surface are formed of a metal plate, and the vertical edge portion of the flange portion is fitted through so that the respective vertical edges of the flange portion are continuous. The horizontal edge portion of the flange portion is fitted through the saucer portion so that the respective surfaces thereof are continuous.

The mounting device fixed to the drain device construction site is screwed through a screw hole formed on the back surface of the flange portion, or the flange portion edge and the mounting device edge that contacts and surrounds the flange portion edge. You may make it weld-connect between. Further, a waterproof layer press is interposed between the outer peripheral edge of the lower end of the drain cover attached to the flange portion and the flange portion, and between the waterproof layer press and the flange portion of the drain body by the screw. The end of the waterproof layer is clamped and fixed. When a heat insulating layer is formed on the base (floor surface), a heat insulating material is sprayed in advance on the back surface of the mounting device (each tray portion) to insulate the drain body at the construction site. Avoid the cumbersome task of forming layers.

An embodiment of the present invention will be described below. FIG. 1 is a partially cutaway longitudinal sectional view showing a longitudinal drain device and a drainage structure according to one embodiment of the present invention.
In the figure, D is a drain device comprising a drain body 21, a drain cover 22 attached to the upper portion of the drain body, and a drain body mounting device 23. The drain main body 21 has a flange portion 25 on the outer periphery of the open end K of a pipe portion 24 connected to a drain pipe (not shown), and is formed of a steel material.

The attachment device 23 includes a tray 26 that abuts on and surrounds the edge of the flange portion 25 of the drain body 21 to form a continuous flat surface with the surface of the flange portion 25. The tray 26 fixed to the deck plate P as a base is formed of a substantially rectangular metal plate having a through hole having the same shape as the outer periphery of the flange portion 25 at the center as shown in FIG. The flange portion 25 is adapted to be fitted into this through hole.

A support member 27 is provided on the back surface of the tray 26, and the drain body 21 is attached to the support member 27 by screwing through a screw hole formed on the back surface of the flange portion 25. As described above, the flange portion 25 is attached. And the surface of the tray 26 are fixed so as to form a continuous flat surface. The drain main body 21 and the tray 26 may be fixed by welding between the end edge of the flange portion 25 and the through hole of the tray 26 that contacts and surrounds the edge instead of screw fixing. In the case of this welding fixation, it is possible to expect a reduction in work man-hours, improvement in continuous flatness, enhancement of water tightness, and the like compared with screw fixation. In this embodiment, the extension dimension from the end of the flange portion 25 of the tray 26 is formed to be about 100 mm.

Further, in FIG. 1, 28 is a waterproof layer retainer continuously provided on the outer periphery of the lower end of the drain cover 22, and an end portion of a later-described waterproof layer 30 is provided between the waterproof layer retainer 28 and the flange portion 24 of the drain body 21. It is designed to pinch and fix.

FIG. 1 shows an example in which the drain device D is constructed on the deck plate P having the outer heat insulating layer as described above, and the outer heat insulating layer 31 is laid on the deck plate P. The waterproof layer 30 is covering. The end portion of the outer heat insulating layer 30 is formed so as to coincide with the end edge of the tray 26. Therefore, the waterproof layer 30 is formed between the end edge of the flange portion 25 and the outer end edge of the tray 26 (the distance is as described above). Is about 100 mm) to the surface of the tray 26. Thereby, waterproof construction around the drain device is facilitated, construction accuracy is improved, and waterproof performance around the drain device can be ensured.

FIG. 2 is a perspective view showing a related configuration of the drain main body 21 and the attachment device 23. The flange portion 25 of the drain body 21 is provided at the center portion of the tray 26 and is fitted into a through-hole portion having the same diameter as the outer edge of the flange portion 25 to form a surface in which the surfaces of the flange portion 25 and the tray 26 are continuous. N, N, and N are bolts for fixing the flange portion 25 to a support member 27 described later.

FIG. 3 is a perspective view showing the back side of FIG. In the figure, reference numeral 27 denotes the above-mentioned support member. This support member 27 forms a cylindrical body as shown in the figure, the upper opening is connected and fixed to the opening of the tray 26, and the tube portion of the drain main body 21 is attached to the bottom. 24 is fitted, and the flange portion 25 is configured to be substantially housed in the support member 27. In addition, a heat insulating material may be sprayed in advance on the outer surfaces of the tray 26, the support member 27, and the tube body 24. As a result, the troublesomeness required when forming a heat insulating layer around the drain device at the construction site. Work becomes unnecessary.
That is, FIG. 4 is a partial cross-sectional side view of the drain main body 21 in which such a heat insulating layer is formed and the attachment device 23 for housing the drain main body 21. In the figure, H1 is a heat insulating layer formed of a known heat insulating material on the entire back surface. Conventionally, insulation work was sprayed from the bottom using a spraying device at the construction site, but by forming the heat insulating layer H1 in advance in this way, in thickness, fixability etc. A high-quality heat insulating layer can be obtained, and work using a spraying device is not required in a narrow construction site, so that construction efficiency can be improved and construction cost can be reduced.

FIG. 5 is a partially cutaway longitudinal sectional view showing a so-called horizontal pulling type drain device according to the present invention and a drainage structure using the drain device.
D1 is a so-called horizontal pulling type drain device, which is disposed in a corner portion where a horizontal ground plane (deck plate P) and a vertical wall surface intersect and is formed in a horizontal direction on a drain pipe formed on the wall surface. It is for draining. The drain device D1 includes a drain main body 31, a drain cover 32 attached to the drain main body 31, and an attachment device 33 for the drain main body 31. The drain main body 31 has a flange portion 35 on the outer periphery of the open end K of the pipe portion 34 connected to the drain pipe (not shown).

The flange portion 35 is formed in a substantially L-shaped cross section by a vertical edge portion 35a formed on the outer periphery of the open end K of the tube portion 34 and a horizontal edge portion 35b formed integrally therewith.
The attachment device 33 includes a vertical tray portion 33a fixed to the wall surface and a horizontal tray portion 33b fixed to the deck plate P which is a base surface. The vertical tray portion 33a and the horizontal tray portion 33b fixed to the base surface are formed of a metal plate. Reference numeral 33c denotes a support member welded and fixed to the back surfaces of the vertical tray portion 33a and the horizontal tray portion 33b.

And the horizontal edge part 35b of the flange part 35 is penetrated by the horizontal saucer part 33b so that each surface may continue. In this embodiment, the horizontal tray portion 33b is formed to extend approximately 100 mm from the horizontal edge portion 35b.

The attachment device 33 fixed to the lower ground (deck plate P) is screwed through a screw hole formed on the back surface of the flange portion 35. A waterproof layer retainer 36 is interposed between the lower peripheral edge 32a of the drain cover 32 attached to the flange portion 35 and the horizontal edge 35b of the flange portion 35. The waterproof layer retainer 36 is provided by the screw. The end of the waterproof layer 37 is sandwiched between the flange portion 35 of the drain main body 31 and fixed.

FIG. 5 shows an example in which the drain device D1 is constructed on the deck plate P on which the outer heat insulating layer 38 is formed, as shown in the figure. The outer heat insulating layer 38 is laid on the deck plate P, and this outer heat insulating layer 38 is provided. The layer 38 is covered with a waterproof layer 37. The end portion of the outer heat insulating layer 38 is formed so as to coincide with the end edge of the horizontal saucer portion 33b. Therefore, the waterproof layer 37 has the horizontal edge portion 35b end edge of the flange portion 35 and the outer end edge of the horizontal saucer portion 33b. (The distance is 100 mm as described above) and is fixed to the surface of the horizontal saucer 33b. As a result, waterproof construction around the drain device is facilitated, construction accuracy is improved, and waterproof performance around the drain device can be ensured.

FIG. 6 is a perspective view showing a related configuration of the drain main body 31 and the attachment device 33. The horizontal edge portion 35b of the flange portion 35 of the drain body 31 is fitted into a through-hole portion having the same shape as the outer edge of the horizontal edge portion 35b provided at the center portion of the horizontal saucer portion 33b, and the horizontal edge portion 35b and the horizontal saucer portion 33b. These surfaces form a continuous surface. The fixing device 33 and the flange portion 35 may be fixed by screwing through a screw hole (not shown) formed on the back surface of the flange portion 35, or the edge of the flange portion 35 (horizontal with the vertical edge portion 35a). The edge 35b) may be welded to the edge of the attachment device 33 (the vertical tray 33a and the horizontal tray 33b) that abuts and surrounds the edge 35b).
The latter welding can be expected to reduce the number of work steps, improve the continuous flatness, enhance the water tightness, etc., compared to screw fixing.

In FIG. 6, a heat insulating material may be sprayed in advance on the back surface of the continuous flat surface formed by the horizontal tray portion 33b and the horizontal edge portion 35b of the flange portion 35. The complicated work required when forming the heat insulation layer around the apparatus is not required. That is, as described above in the case of the longitudinal drawing according to FIG. 4, conventionally, at the construction site, the insulation material was sprayed from the lower side using a spraying device, but the heat insulation layer was formed in advance. By doing so, a high-quality heat insulating layer can be obtained in terms of thickness, fixability, and the like, and an operation using a spraying device is not required in a narrow construction site, so that construction efficiency can be improved and construction cost can be reduced.

FIG. 7 is a perspective view showing the back side of FIG. In the figure, 33c is the above-mentioned support member, and this support member 33c forms a frame body having an L-shaped cross section as shown in the drawing so that the vertical edge portion 35a of the flange portion 35 is accommodated and fixed. It has become.

BRIEF DESCRIPTION OF THE DRAWINGS It is a partially notched longitudinal cross-sectional view which shows the vertical drain apparatus which concerns on one Example of this invention, and the drainage structure by this. 3 is a perspective view showing a related configuration of a drain main body 21 and an attachment device 23. FIG. It is a perspective view which shows the back surface side of FIG. It is the partial cross section side view of the drain main body 21 in which the heat insulation layer was formed previously, and the attachment apparatus 23 which accommodates this. FIG. 2 is a partially cutaway longitudinal sectional view showing a so-called horizontal pulling type drain device according to the present invention and a drainage structure using the drain device. 4 is a perspective view showing a related configuration of a drain main body 31 and an attachment device 33. FIG. It is a perspective view which shows the back surface side of FIG. It is a partially cutaway longitudinal cross-sectional view showing a conventional example.

Explanation of symbols

D, D1. . . . . . . . . . . . . Drain device . . . . . . . . . . . . . . . Opening P.P. . . . . . . . . . . . . . . . Deck plate (base)
H1. . . . . . . . . . . . . . . Heat insulation layer 21. . . . . . . . . . . . . . . Drain body 22. . . . . . . . . . . . . . . Drain cover 23. . . . . . . . . . . . . . . Mounting device 24. . . . . . . . . . . . . . . Pipe part 25. . . . . . . . . . . . . . . Flange portion 26. . . . . . . . . . . . . . . Saucer 27. . . . . . . . . . . . . . . Support member 28. . . . . . . . . . . . . . . Waterproof layer presser 30. . . . . . . . . . . . . . . Waterproof layer 31. . . . . . . . . . . . . . . Outer heat insulating layer 32. . . . . . . . . . . . . . . Drain cover 33. . . . . . . . . . . . . . . Mounting device 33a. . . . . . . . . . . . . . Vertical saucer 33b. . . . . . . . . . . . . . Horizontal saucer 33c. . . . . . . . . . . . . . Support member 34. . . . . . . . . . . . . . . Pipe part 35. . . . . . . . . . . . . . . Drain body 35a. . . . . . . . . . . . . . Vertical edge 35b. . . . . . . . . . . . . . Horizontal edge 36. . . . . . . . . . . . . . . Waterproof layer presser 37. . . . . . . . . . . . . . . Waterproof layer 38. . . . . . . . . . . . . . . Outer insulation layer

Claims (8)

A drain main body having a flange portion on the outer periphery of an opening end of a pipe portion connected to a drain pipe, a drain cover attached to an upper portion of the drain main body, and a drain body mounting device, the mounting device having a flange A drain device comprising a tray that contacts and surrounds the edge of the portion and forms a continuous surface with the surface of the flange portion. The drain device according to claim 1, wherein the tray and the flange portion fixed to the drain device mounting surface are fixed by fixing means, and the fixing means is screw-fixed through a screw hole formed on the back surface of the flange portion. Or the drain apparatus comprised by the welding connection of the flange part edge and the saucer edge which contact | abuts and surrounds this. 3. The drain device according to claim 1, wherein a waterproof layer presser is continuously provided on the outer peripheral edge of the lower end of the drain cover, and the waterproof layer end is sandwiched and fixed between the waterproof layer presser and the flange portion of the drain body. A drain device characterized by that. 4. The drain device according to claim 1, wherein a heat insulating material is fixed to the back surface of the tray. A drain device that drains in a horizontal direction to a drain pipe formed on a wall surface that is disposed at a corner portion where a horizontal ground plane and a vertical wall surface intersect, and a pipe portion connected to the drain pipe A drain main body having a flange portion on the outer periphery of the open end of the tube, and a drain body attaching device. The flange portion is formed integrally with a vertical edge formed on the outer periphery of the open end of the tube portion. A horizontal edge portion is formed in a substantially L-shaped cross section, and the drain body attaching device is composed of a vertical saucer portion fixed to a wall surface and a horizontal saucer portion fixed to a ground surface, and a flange portion of the drain body. The vertical edge portion and the horizontal edge portion are respectively fitted to the vertical saucer portion and the horizontal saucer portion of the attachment device so that the surfaces of the flange portion and the saucer portion are continuous. Down apparatus. 5. The drain device according to claim 4, wherein the fixing device fixed to the drain device mounting surface and the flange portion are fixed by fixing means, and the fixing means is screw fixing made through a screw hole formed on the back surface of the flange portion. Or a drain device characterized by comprising a welded connection between the flange portion end edge and the attachment device end edge in contact with and surrounding the flange portion end edge. 6. The drain device according to claim 4 or 5, wherein a waterproof layer presser is interposed between an outer peripheral edge of a lower end of a drain cover attached to the flange portion and the flange portion, and the waterproof layer presser and the drain by the screw. A drain device characterized in that a waterproof layer end is sandwiched and fixed between the flange portion of the main body. 8. The drain device according to claim 5, wherein a heat insulating layer is formed on a back surface of the attachment device.

Images