JPH0125150Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is installed in the roof drain, which is installed in the drainage part of the roof surface and prevents the inflow of dirt, dust, leaves, etc. that come in with rainwater. The present invention relates to a jig for a watertight inspection device.

[Problems to be solved by this idea]

Conventionally, after the roof drain is installed and the construction of the building is completed, water often leaks from the drain pipe connection section attached to the lower end of the roof drain outlet and from the pipe connection section near the roof drain. There was a problem.

Therefore, before the building is completed, it is necessary to conduct a watertight inspection of the connections, etc. mentioned above, but when performing this watertightness inspection, it is common to supply water and detect abnormalities by changes in water pressure. It is necessary to make the roof drain body watertight.

However, in the past, since the roof drain was open, there was no appropriate means to make the roof watertight and apply water pressure for inspection, and the current situation was that construction was completed without conducting a watertight inspection.

On the other hand, if the roof drain is open, earth and sand may enter the roof drain outlet and the drain pipe during construction of the surrounding roof surface after the roof drain is installed.

[Purpose of invention]

This invention was devised in view of the above-mentioned circumstances, and its purpose is to ensure that water is supplied to the roof drain outlet, which is used to apply water pressure for inspection by the detection device.
An object of the present invention is to provide a jig for a watertight inspection device capable of blocking a drain port.

[Structure of the idea]

According to this invention, the drainage opening is made watertight by utilizing the installation position of the basket to prevent the inflow of earth and sand, which is installed in the roof drain so as to cover the drainage opening, and the water supply that applies water pressure to the drainage opening is made possible. This is to install a jig that has a connecting part that allows the connection of the pipe and the attachment and detachment of the lid.

〔Example〕

This invention will be explained below with reference to illustrated embodiments.

The jig 1 has a plurality of through holes 6 on its periphery through which mounting bolts 5 that are screwed into the mounting screw holes 4 of the inflow prevention basket 15 installed to block the drain port 3 in the roof drain 2 can pass through. A circular substrate 8 having a connecting portion 7 in the center thereof.
and a fitting part 9 which is provided on the board 8 and can fit into the drain port 3, and a through hole 11 which is attached to the groove part 10 formed by the board 8 and the fitting part 9 and through which the mounting bolt 5 passes. It consists of an annular packing material 12 having a ring-shaped packing material 12.

The connecting portion 7 of the substrate 8 is formed so that a water supply pipe 13 for detecting water pressure that supplies water into the drain port 3 can be connected thereto, and a lid 14 can be attached and removed. In this embodiment, a water supply pipe 13 and a lid 14 having a threaded portion on the outer periphery can be screwed together, respectively, and are formed by threaded holes penetrating from the upper end of the jig 1 to the lower end on the side of the drain port 3. (See Figures 1 and 2) When performing a watertight inspection using the jig 1 having such a configuration, first place the jig 1 into the inflow prevention basket 1.
While fitting the fitting part 9 into the drain port 3 using the mounting screw hole 4 of 5, the fitting part 9 is installed into the roof drain 2 with a mounting bolt 5. At this time, packing material 1
2, the drain port 3 is made watertight. Also, in the connection part 7,
A lid 14 is attached.

Next, the roof drain 2 is installed, the drain pipe 16 is connected to the drain port 3 and other piping (not shown) is connected, and the concrete 17 forming the roof surface is installed.
Perform construction work such as pouring.

Next, after the roof drain 2 has been installed, the lid 14 screwed onto the connection part 7 of the jig 1 is removed, and the water supply pipe 13 is screwed into the connection part 7 to connect it.

Then, seal the ends of the drain pipe 16 and other pipes, and connect the water supply pipe 13 to the drain port 3 and the drain pipe 1.
6 to provide water pressure.

If water leaks at the connection between the drain port 3 and the drain pipe 16 and the connection between the drain pipe 16 and other piping at this time, the water pressure changes and the water leak can be detected.

After completing the watertight inspection, the jig 1 is removed, the inflow prevention cage 15 is attached, and the strainer 18 is attached to complete the construction work of the roof drain 2.

Note that the shape and structure of the jig are not limited to those of this embodiment, but may be of any type as long as it can be attached to the roof drain in a watertight manner.

Further, the connection part provided on the jig is not limited to the one in this embodiment, but may be of any type as long as the water supply pipe can be connected thereto and the lid can be attached and detached.

[Effect of idea]

This invention has the above configuration and has the following effects.

Changes in water pressure can be detected by installing a watertight drainage port at the installation location of the inflow prevention cage that covers the drainage port inside the roof drain, and by installing a jig to which a water supply pipe can be connected. The roof drain can be easily supplied with water from the watertight inspection device without any special processing or attachment of metal fittings, etc. to the roof drain.

Therefore, a watertight inspection can be carried out reliably, and accidents such as water leakage from the connection between the roof drain outlet and the drain pipe after the building is completed can be prevented.

Furthermore, a lid can be attached to the connection portion of the jig to which the water supply pipe is connected. Therefore, during construction work on the roof drain and surrounding areas, dirt and sand will not enter from the roof drain outlet into the drain pipe connected to the drain outlet.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the jig of this invention attached to a roof drain, and FIG. 2 is a perspective view of the jig. 1...Jig, 2...Roof drain, 3...Drain port, 4...Mounting screw hole, 5...Mounting bolt,
6... penetration, 7... connection part, 8... base, 9...
Fitting portion, 10...Groove portion, 11...Through hole, 12...
Packing material, 13... Water supply pipe, 14... Lid, 1
5... Inflow prevention basket, 16... Drain pipe, 17...
Concrete, 18...Strainer.

Claims (1)

[Scope of Claim for Utility Model Registration] The drain port is formed so that it can be installed in a watertight manner at the installation position of an inflow prevention basket that is installed to cover the drain port within the roof drain, and the water pressure for supplying water to the inside of the drain port is detected. A jig for a watertight inspection device for a roof drain, characterized in that it has a connection part to which a water supply pipe can be connected and a lid can be attached and detached.