JPH06108644A - Method for mounting drainage fixing - Google Patents

Abstract

PURPOSE:To prevent leakage of water owing to deterioration of a waterproof water after mounting of a drainage fixing, the occurrence of peel and provision of a gap between a drainage fixing and foundation concrete occasioned by vibration of a building, and the occurrence of a crack to the water proof. CONSTITUTION:The upper end of a water collecting pan 2 or a waterproof pan formed at the upper part of the outer wall of the body of a drainage fixing is securely buried in an installation place in a manner to be positioned flush with the surface of foundation concrete. Thereafter, the surface of the drainage pan or the waterproof pan and the surface of foundation concrete at the periphery of the drainage fixing are covered with and contact-bonded by a lead sheet 6. In a following work, a waterproof layer 13 is formed by means of a waterproof sheet 12, asphalt, and mortar according to a normal method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to drainage fittings used for roofs and floors of buildings, particularly roof drains used for draining roofs and balconies, and waterproof layers used for indoor drainage on the floor surface. The present invention relates to a construction method such as a drain trap used when forming.

[0002]

2. Description of the Related Art A roof drain, which is a drainage fitting used for draining roofs and balconies, is composed of a funnel-shaped main body having a water collecting tray inclined toward the center, a sheet retainer, a strainer, etc. Manufactured by punching or molding a stainless steel plate, etc., when forming the concrete concrete of a concrete roof or balcony, after attaching the main body to the concrete formwork at a predetermined position, the basic concrete is cast and fixed, It is perforated and fixed at a predetermined position on the panel concrete, and a waterproof sheet is used to bond and cover the basic concrete surface and the sloped part of the roof drain body, that is, the water collecting tray with an adhesive agent, and the waterproof sheet is fixed to the water collecting tray with the sheet retainer. In addition, a waterproof layer is formed on the surface of the waterproof sheet with asphalt or waterproof mortar.

With a drain fitting used for draining indoor floors, etc., if water leaks below the floor, it is necessary to provide a waterproof layer on the floor surface. In this case, the drain trap is the outer wall above the main body. The one that is integrally molded with the waterproof plate is used.
This is because the waterproof layer is formed similarly to the roof drain, so that the surface of the basic concrete is covered with the waterproof sheet and the contact portion between the drain trap and the basic concrete is covered. In addition, the main body including the drain tray's waterproof tray is generally integrally molded with cast iron, and the top opening is equipped with a chrome-plated strainer and strainer receiving frame. Layers are formed and the surface is finished with tiles and the like.

[0004]

Since the drainage fitting is made of metal and is made of a material different from that of the basic concrete such as a concrete roof or a concrete floor, separation occurs between the basic concrete and the drainage fitting to cause water leakage. Therefore, the surface of the water collecting tray or waterproof tray provided on the drain fitting and the surface of the basic concrete are covered with a waterproof sheet, so that even if peeling occurs between the drain fitting and the basic concrete, water leakage will not occur. However, due to deterioration of the waterproof sheet over time, earthquakes and other vibrations of the building, a gap is created between the basic concrete and the drain fitting, and the waterproof sheet and waterproof layer are cracked, causing water leakage. . It is an object of the present invention to provide a construction method in which water does not leak even if a waterproof sheet is cracked or peeled off between a main body and basic concrete after attaching drainage fittings.

[0005]

[Means for Solving the Problems] As a result of various studies to achieve the above object, the lead plate used for the drainer, which the applicant of the present application previously filed as Japanese Patent Application No. 3-91881 has flexibility, It has been found that the adhesiveness to the surface is good, it has corrosion resistance and there is no risk of cracks, and before the formation of the waterproof sheet, waterproof layer, etc., the drain tray's water collecting tray or prevention tray and its installation section. The purpose could be achieved by covering the surrounding basic concrete.

[0006]

[Function] The lead plate has a function of covering the contact portion between the drainage fitting and the basic concrete, covering the gap and sealing even if there is a gap between the drainage fitting and the basic concrete, resulting in separation. Even if a crack occurs in the waterproof sheet or the waterproof layer and water penetrates into the crack, it is blocked to prevent water leakage.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings.

[Embodiment 1] A roof drain of a drainage fitting constructed on a roof or a balcony has a funnel-shaped main body (1) having a water collecting tray (2) inclined toward the center, and an inclined main body (1). Water collection dish
A sheet retainer (3) that is in close contact with (2), and a hat-shaped strainer (4) having a through hole.
Alternatively, the body (1) and the strainer (4) are configured to be coupled with each other by bolts, nuts and the like.

First, as shown in FIG. 1, the main body (1) of the roof drain is such that the upper surface of the main body (1) serves as the surface of the basic concrete (11) when the basic concrete (11) constituting the roof or the balcony is formed. Either bury them so that they match, or drill through holes in the concrete panel and fix. Then the lead plate (6)
The surface of the sloping water collecting tray (2) of the roof drain body (1) and the surrounding basic concrete (11) is covered and crimped.
It is desirable that the lead plate (6) has a through hole in the center and has an area that is at least 5 cm or more, preferably about 10 cm larger than the outer peripheral edge of the water collecting tray (2) of the main body (1) of the roof drain. It does not matter whether it is circular or not, and it is preferable to use one having a thickness of about 1 mm.

[0009] In the following, a waterproof sheet (12) conforming to the conventional method is used for a roof or a veranda foundation concrete (11) and a lead plate.
(6) Cover the top and attach the lead plate (6) and the waterproof sheet (12) to the roof drain body (1) with the sheet retainer (3).
Crimping and fixing to, and forming a waterproof layer (13) with asphalt or waterproof mortar, and strainer (4) to seat retainer (3)
Alternatively, it is locked to the main body (1) and attached by the drainage pipe (5) to complete.

[0010]

[Embodiment 2] As shown in FIG. 2, a drain trap used for floor drainage indoors generally has an annular groove formed inside the main body (21), and water is retained in the groove and raised in the center. The pipes are capped with a space between them to prevent the odor of sewage from entering the room.On the upper part of the outer wall, a waterproof plate (22) is integrally laid out on the floor, Cylindrical receiving frame carrying a strainer (24) whose height with respect to the surface can be adjusted
The (23) is configured to be screwed onto the main body (21).

The main body (21) of the drain trap is a drain pipe before the foundation concrete (11) of floor concrete is placed.
The upper surface of the waterproof tray (22) is fixed at a predetermined location such as by screwing with the (25) so that it matches the upper surface of the basic concrete (11), and concrete is poured.

Then, the lead plate (6) is attached to the body (2) of the drain trap.
The surface of the waterproof tray (22) of 1) and the basic concrete around it
The surface of (11) is covered by at least 5 cm or more, preferably 10 cm than the waterproof dish (22) and crimped, and then the waterproof layer (13) according to the usual method, waterproof mortar or asphalt and the waterproof layer (13) Is formed, the receiving frame (23) is attached to the main body (21) by screwing, the floor surface is finished with tiles, and the strainer (24) is fitted and completed.

[0013]

As described above, according to the method of constructing the drainage fitting of the present invention, the lead plate covers the water collecting tray or the prevention tray of the drainage fitting body and the surface of the basic concrete around it with the lead plate before covering the waterproof sheet. Therefore, due to deterioration of the waterproof sheet and vibration of the building, there is a gap between the main body of the drainage fitting and the basic concrete to create a gap, and even if the waterproof sheet is cracked, there is no risk of water leakage. In addition, this construction method can be applied not only to the vertical type of the drain drain of the drain fitting, but also to the horizontal type provided at the lower end of the side wall.
Outside the drain trap for floor drains, drains for washing machines,
It can also be applied to bathroom drainage fittings.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a construction situation of a drainage fitting and a roof drain.

FIG. 2 is a cross-sectional view showing a construction situation of a drain fitting and a drain trap.

[Explanation of symbols]

 1 Main body (of roof drain) 2 Water collecting tray 3 Sheet retainer 4 Strainer 5 Drain pipe 6 Lead plate 11 Basic concrete 12 Waterproof sheet 13 Waterproof layer 14 Surface finishing layer 21 Main body (of drain trap) 22 Waterproof tray 23 Receiving frame 24 Strainer 25 Drainage pipe

Claims (1)

[Claims] 1. The body (1) of the drain fitting is buried after the upper surface of the water collecting tray (2) or the waterproof tray (22) of the body (1) is aligned with the surface of the foundation concrete (11) of the installation portion. ) Of the main body (1) using a lead plate (6) having an area larger than the surface area of the water collecting tray (2) or waterproofing tray (22) and having an opening at the center. After covering and crimping the sloped surface of 22) and the surface of the basic concrete (11) around the mounting edge of the drainage fitting, a waterproof sheet
(12) The method for constructing a drainage fitting, characterized in that a waterproof layer is formed with asphalt.