JPS6326218B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) In order to drain water that accumulates on the roofs of buildings, balconies, etc., drains are generally installed on the roof surfaces of these buildings, and drainage ports are formed therein. This invention is
This invention relates to a drain leakage repair method that is 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. It was installed and repaired.

(Problems to be solved) However, the following problems arose with this type of repair. First, in order to remove the old drain body that was embedded in the roof surface, the concrete that makes up the roof surface must be covered with mortar. However, this chiseling work sometimes creates new cracks in the concrete, etc. on the roof surface, and these new cracks sometimes cause new water leakage.

Furthermore, filling cracks and cracks with mortar is a difficult task, and the filling is often incomplete, resulting in the necessity of repairing water leaks again.

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

Moreover, repairs requiring such chiselling work are 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) That is, the method for repairing water leakage from a drain according to the present invention is to repair the old water outlet 11 of the drain that is the cause of water leakage.
Insert a repair drain into the roof surface 1.
The roof surface 17 is characterized in that a new roof surface 17 is formed on top of the roof surface 6 for repair.

As described above, the method for repairing water leakage in a drain according to the present invention involves directly inserting the main body 1 of a new drain for repair into the main body of an old drain or an old drain 11 such as a gutter, and then In this method, a new roof surface 17 is formed on top of the roof surface and a repair drain is buried therein 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 Figure 1, first, the main body 1 of the old drain
Press fit the main body 1 of the drain for repair, which will be described later, into the old drain port 11 formed by
is crimped onto the inner peripheral surface of the old drain port 11 to lock the main body 1.

Next, mortar is filled between the lower side of the flange 6 of the main body 1 and the main body 10 of the old drain, and 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 formed between the inner peripheral surface of the old drain port 11 and the main body 1 is filled with mortar, the main body 1 will be more securely locked to the old drain port 11. This will also increase the waterproofing effect of mortar filling.

Next, a waterproof sheet 4 is clamped between the main body 1 and the clamping piece 2 attached to the top of the main body 1, and the mortar layer 14 and the waterproof sheet 4 form a new roof surface 17.
form. 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. Tarpaulin sheet 4
is pasted on the mortar layer 14 to further prevent rainwater from entering and to prevent the mortar layer 14 from deteriorating. In this way, the clamping piece 4 is attached to the main body 1, and the strainer 3 is placed on top of it. In this way, a drain is buried in the roof surface 16 for repair purposes. 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 be inserted into the old drain port in a watertight manner, and in this example, as shown in FIG. A main body 1 that is inserted into the main body 1, and a clamping piece 2 that is attached to the top of the main body 1 and is used to clamp a waterproof sheet 4 (see Fig. 1).
and a strainer 3 for removing dust.

The main body 1 is formed in the shape of a wrapper tube having a flange 6 whose upper part is widened in a tapered shape toward an opening 5. The lower part of the main body 1 is adapted to be inserted into the old drain port 11 shown in FIG. 1, and is formed into a cylindrical shape whose outer diameter is smaller than the inner diameter of the old drain port 11. Main body 1 inserted into this old drain port 11
A locking portion 7 made of rubber, plastic, metal, etc. is formed on the outer periphery of the holder.

The tip of this locking part 7 is formed slightly larger than the inner diameter of the old drain port 11, and by applying the lower end of the main body 1 to the old drain port 11 and press-fitting the main body 1 from above, the old drain It is inserted into the mouth 11. At this time, the tip of the locking part 7 whose outer diameter is slightly larger than the inner diameter of the old drain port 11 is pressed against the inner peripheral surface of the old drain port 11, so that the main body 1 is installed in the old drain port 11 in a watertight manner. It is firmly locked in place.

Further, the locking portion 7 is attached to the main body 1 as shown in FIG.
Several rib-shaped protrusions 7a may be provided on the outer periphery of the main body 1 along the vertical direction of the main body 1. As shown in FIG. As shown in the figure, the brim-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 FIG.
Prevents water from leaking between the inner peripheral surface of 1 and
It acts as a drainer. Moreover, if the shape is as shown in FIG. 4, when the water flows backward toward the old drain port 11 and receives the force of the water at the lower end of the main body 1, the water flow will be as shown by the arrow 16 in the figure. You can kill the force of the water by making it meander.

The above drain leakage repair method is for old drain port 1.
1 is formed by the main body 10 of an old drain, but the method for repairing water leakage from a drain according to the present invention is, for example, an old drain port 1 consisting of only a gutter without a drain main body installed.
1 can also be applied.

Furthermore, the new roof surface 17 may be repaired by forming only a mortar layer, or by forming a waterproof sheet and a mortar layer laminated thereon. The repair drain is not limited to those mentioned above, and any drain that can fit into the old drain port 11 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 drain port 11 of the drain that is the cause of water leakage, and then installing a new roof surface 17 on top of the roof surface 16. It is characterized by being formed and repaired in layers. 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 time-consuming. do not have.

Furthermore, in the drain leakage repair method according to the present invention, a new roof surface 17 is formed on top of the roof surface 16 for repair, thereby covering a wide area around the area where rainwater has entered.
This not only makes it possible to repair water leaks that were not noticed, but also significantly reduces work time as there is no need to rigorously investigate water leaks, which previously took time. This has effects such as being able to achieve the desired results.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a construction example of this invention;
The figure is an exploded cross-sectional view showing an example of a drain for repair used in the present invention, FIG. 3 is a partial cross-sectional view showing another example of the above-mentioned locking part, and FIG. 4 is still another example of the locking part. FIG. In the figure, 1 is the main body, 2 is a clamping piece, 3 is a strainer, 7 is a locking part, 11 is an old drain, 16 is a roof surface, and 17 is a new roof surface.

Claims (1)

[Claims] 1. 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.