JPS60233260A - Repairing of water leak of drain - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Technical Field) In order to capture water that collects on the roof of a building, balcony, etc.
Drains are generally installed on these roof surfaces to form drainage holes. The present invention relates to a drain leakage repair method applied when water leaks from an already installed drain.

(Prior art) Conventionally, when a drain installed on the roof surface becomes damaged due to aging, etc., and rainwater enters the concrete and causes water leakage, the old drain is removed and a new drain is installed for repair. I was able to pick it up and repair it.

(Problems to be Solved) However, such repairs have the following problems. First, in order to remove the old drain body that was embedded in the roof surface, we had to remove the concrete, mortar, etc. that made up the roof surface. However, this chiseling work sometimes creates new cracks in the concrete or the like on the roof surface, and these new cracks sometimes cause new water leakage.

In addition, it is a difficult task to fill bulges and cracks with mortar, and in many cases the filling is incomplete, necessitating repair work to repair water leaks again.

Moreover, the gutter that communicates with the main body of the drain is generally made of synthetic resin pipes such as hard vinyl chloride, so it is easy to break the periphery of the gutter when removing the main body of the old drain. Ta. In such a case,
It was also necessary to repair the gutter to prevent new water leaks.

Furthermore, repairs requiring such chisel work were time-consuming and inefficient.

The present invention has been made in view of these circumstances, and provides a method for repairing water leakage in a drain that does not require chisel work.

(Means for solving the problem) That is, the drain leakage repair method according to the present invention is as follows:
The method is characterized in that a repair drain is inserted into the old drain port (11) of the drain that causes water leakage, and then a new roof surface (17) is formed over the roof surface (1B) to repair it. .

As described above, the method for repairing water leakage in a drain according to the present invention includes directly inserting the main body (1) of a new drain for repair into the main body of an old drain or an old drain port (11) such as a gutter;
Next, a new roof surface (17) is placed on top of the roof surface (16).
) is layered and a repair drain is buried to make it waterproof.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A drain leakage repair method according to the present invention will be described below with reference to the drawings.

In FIG. 1, first, a repair drain body (1), which will be described later, is press-fitted into the old drain port (11) formed by the old drain body (10), and the locking part (7) of the main body (1) is )
to the inner peripheral surface of the old drain port (11) to make the main body (1) engage 1 (2).

Next, mortar is filled between the lower side of the flange (6) of one main body (1) and the old drain main body (lO),
A mortar layer (14) is formed on the roof surface (16) to match the height of the flange (6) of the main body (1). At this time, if the gap (13) created between the inner peripheral surface of the old drain port (11) and the main body (1) is filled with mortar, the main body (1) It will be more securely locked into the opening (11), and the waterproof effect of filling with mortar will also be increased.

Next, a waterproof sheet (4) is sandwiched between the main body (1) and the clamping piece (2) attached to the bottom of the main body (1),
A new roof surface (17) is formed by the mortar layer (14) and the waterproof sheet (4). This clamping is performed by screwing together a female threaded portion (8) provided in the opening of the main body (1) and a male threaded portion (9) provided in the clamping piece (2). The waterproof sheet (4) is attached to -L of the mortar layer (14) to further prevent rainwater from entering and to prevent deterioration of the mortar layer (14). In this way, the clamping piece (4) is attached to the main body (1), and the strainer (
3) Place. In this way, the repair drain is buried in the roof surface (16). Note that this new roof surface (17) is preferably formed over the entire surface of the roof surface (16).

In addition, it is preferable that this repair drain is inserted into the old drain in a watertight manner, and in this example, as shown in FIG. A main body (1) that is inserted in a watertight manner into the main body (11), a clamping piece (2) that is attached to the top of the main body (1) for clamping the waterproof sheet) (4) (see Figure 1), and a garbage It is formed with a strainer (3)' for removing dust from objects.

This main body (1) is formed in the shape of a trumpet tube with a flange (6) tapering upward toward the opening (5). The lower part of the main body (1) is designed to be inserted into the old drain port (11) shown in Figure 1, and is formed into a cylindrical shape whose outer diameter is smaller than the inner diameter of the old drain port (11). . The outer periphery of the main body (1) inserted into this old drain port (11) has a locking part (7
) is formed.

The tip of this locking part (7) is formed slightly larger than the inner diameter of the old drain port (11), and the lower end of the main body (1) is applied to the old drain port (11), and the main body ( 1) is inserted into the old drain hole (11) by press-fitting it. At this time, the tip of the connecting part (7), whose outer diameter is slightly larger than the inner diameter of the old drain port (11), is pressed against the inner circumferential surface of the old drain port (11), thereby causing the main body (1 ) is firmly and watertightly locked in the old drain port (11).

In addition, the locking portion (7) is attached to the main body (1) as shown in FIG.
The protrusion (7a) formed in the shape of a brim on the outer periphery of the main body (1)
Several hemispheres (7b) may be provided along the vertical direction, or a large number of hemispheres (7b) may be provided protrudingly as shown in FIG.
Furthermore, as shown in FIG. 4, pot-shaped protrusions (7C) occupying approximately half a circumference may be provided at different levels on the left and right sides.

In particular, if the shape is as shown in Figure 2, the gutter (12)
The water flowing into the main body (1) and the drain port (11) will flow backwards.
It prevents water from leaking between the inner circumferential surface and acts as a drainer. Furthermore, if the shape is as shown in Fig. 4, when the water flows backward toward the 111 drain port (11) and the force of the water is received by the lower end of the main body (1), the water flow will be directed as shown by the arrow in the figure ( As shown in 16), the force of the water can be reduced by making it meander.

The above-mentioned method for repairing water leakage in a drain is an example in which the old drain port (11) is formed by the main body (10) of an old drain, but the method for repairing water leakage in a drain according to the present invention, for example, This can also be applied to the old drain (11) consisting only of a gutter without a main body installed.

Furthermore, the new roof surface (17) may also be repaired by forming it with only a mortar layer, or by forming it with a waterproof sheet and a mortar layer laminated on top of the waterproof sheet. The repair drain is not limited to those mentioned above, and any drain that can fit into the old drain port (II) can be used.

(Effects) As described above, the method for repairing water leakage from a drain according to the present invention involves inserting a repair drain into the old water outlet (11) of the drain that causes water leakage, and then placing a new one on the roof surface (18). It is characterized by repairing by forming roof surfaces (17) overlapping each other. Therefore, when repairing the drain, there is no need to pour concrete as in the conventional method, and there is no need to worry about water leakage caused by new cracks caused by concrete pouring.

In addition, the drain leakage repair method according to the present invention can be easily installed by simply inserting a new repair drain into the old drain port (11), and does not require chisel work, so the work is labor-intensive. It doesn't hang.

Further, in the drain leakage repair method according to the present invention, a new roof surface (17) is formed on the roof surface (1B) and repaired to cover a wide area around the area where rainwater has entered. This not only makes it possible to repair water leaks that were not noticed at first, but also reduces work time because there is no need to rigorously investigate leaks, which previously took time. This has the effect of significantly increasing the

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a construction example of this invention, Fig. 2 is an exploded sectional view showing an example of a repair drain used in this invention, and Fig. 3 is another example of the same locking part. A partial cross-sectional view showing,
FIG. 4 is a front view showing still another example of the locking portion. In the figure, (1) is the main body, (2) is the clamping piece, (3) is the strainer-1 (7) is the locking part, (11) is the old drain port, (18)
) is the roof surface, and (17) is the new roof surface. Patent applicant: Tokai Waterproofing Co., Ltd. 12 Figure 113m No. 4E

Claims (1)

[Claims] A drain leakage repair method characterized by inserting a repair drain into the old drain outlet of the drain causing the water leakage, and then forming and repairing a new roof surface over the roof surface.