JP6010171B1 - Temporary drainage fitting - Google Patents

Abstract

Provided is a temporary drainage fitting that can be easily attached from the upper side of a floor portion even after a roof drain is installed, and can be easily removed from the upper side of the floor portion when it becomes unnecessary. This is a problem to be solved. Further, it is an object to be solved to provide a drainage fitting that can be attached even when the necessity of installing a temporary drainage hose is noticed after the roof roof drain is installed. A temporary drainage fitting 1 of the present invention is for detachably attaching a temporary drainage hose 102 to a drainage pipe part 101b of a roof drain 101, and has a flange part 2a hooked on the tray part 101a. 2b, 2c, and the inner pipe part 3 that is coupled downward from the flange parts 2a, 2b, 2c, is fitted into the drain pipe part 101b, and is connected to the temporary drain hose 102. . An annular packing 4 is attached to the outer periphery of the inner pipe portion 3 to prevent water leakage from the gap with the drain pipe portion 101b. [Selection] Figure 1

Description

  The present invention relates to a temporary drainage fitting that is used until a gutter pipe is attached to a roof drain placed on a floor such as a veranda or a balcony.

  Rainwater drainage means on verandas, balconies, etc. formed on each floor of the building is constructed by placing roof drains on the floors and then connecting a series of pipes to each roof drain to guide the rainwater to the sewer. It is designed to drain.

  However, if it rains after the installation of each roof drain and before the tub is attached, the rainwater flowing down from each roof drain will cause the floor below the floor to be submerged and soil the building.

  For this reason, conventionally, after placing the drain drain, until the soot pipe is attached, a temporary drainage fitting is attached to the roof drain, and a temporary drainage hose is connected to the drainage drainage to the drain (for example, Patent Documents 1 and 2).

JP 11-315621 A Japanese Patent No. 3929597

  However, in the conventional drainage fittings for roof drains described above, when the temporary drainage fittings are attached to the roof drain, since the construction is performed from the back side of the floor, it is necessary to assemble a scaffold or work in an unreasonable posture. . Moreover, when removing the temporary drainage hose and installing the soot pipe, the temporary drainage fitting had to be removed from the back side of the floor, and there was a similar problem. In addition, since it was necessary to perform processing to install the temporary drainage fitting on the roof drain side, it was not possible to install it if you realized the necessity of installing a temporary drainage hose after placing the roof roof drain. .

  The present invention has been made to solve the above-described conventional problems, and can be easily attached from the upper side of the floor portion even after the roof drain has been installed, and can be removed when it becomes unnecessary. An object to be solved is to provide a temporary drainage fitting that can be easily performed from the upper side of the section. Further, it is an object to be solved to provide a drainage fitting that can be attached even when the necessity of installing a temporary drainage hose is noticed after placing a roof drain.

  A temporary drainage fitting according to the present invention includes a tray part and a drain pipe part coupled to the tray part, and is used for detachably attaching a temporary drain hose to the drain pipe part of a roof drain placed on a floor part. A temporary drainage fitting, a hook part that is hooked on the tray part, an inner pipe part that is coupled downward from the hook part and fitted into the drainage pipe part, and is connected to the temporary drainage hose; And a packing for preventing water leakage from the gap with the drainage pipe part is attached to the outer periphery of the inner pipe part, and it can be installed on the roof drain by a human hand from the upper side of the floor part. It is possible to remove it.

When attaching the temporary drainage hose using the temporary drainage fitting of the present invention, first connect one end of the temporary drainage hose to the lower end of the inner pipe portion of the temporary drainage fitting, and then hold the other end of the temporary drainage hose and hold the roof drain. Insert it into the drain pipe and lower it. And finally, a temporary drainage hose can be easily installed by hooking the collar part of a temporary drainage metal fitting on the saucer part of a roof drain. In addition, since a packing is attached to the outer periphery of the inner pipe part of the temporary drainage fitting to prevent water leakage from the gap with the drain pipe part of the roof drain, all rainwater flowing into the drain pipe of the roof drain is not leaked. It can be made to flow into a temporary drain hose. Furthermore, even when removing the temporary drainage hose, the temporary drainage hose can be easily removed if the temporary drainage hose is pulled upward from the upper side of the floor.
Therefore, the temporary drainage hose can be easily connected to or removed from the roof drain without assembling a scaffold or working in an unreasonable posture. Further, the removed temporary fitting can be reused. Furthermore, even when it is necessary to connect the temporary drain hose after the roof drain is driven on the floor, the roof drain can be constructed without any special work.

  The packing is preferably made of water expansion rubber. If this is the case, the packing expands due to rainwater, so that it is possible to reliably prevent water from leaking from the gap between the inner pipe part of the temporary fitting and the drain pipe part of the roof drain.

It is sectional drawing which shows the installation condition of the temporary drainage metal fitting 1 for roof drains of Example 1. FIG. 1 is a plan view of a temporary drainage fitting 1 for a roof drain of Example 1. FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2. It is a figure which shows the installation method of the temporary drain metal fitting 1 for roof drains of Example 1. FIG.

Hereinafter, a temporary drainage fitting for a roof drain embodying the present invention will be described in detail with reference to the drawings.
Example 1
FIG. 1 is a cross-sectional view showing an installation situation of the temporary drainage fitting 1 of the present invention. The roof drain 101 includes a tray portion 101a exposed on the upper surface of the floor portion 100, and a drain pipe portion 101b coupled downward from the tray portion 101a. The temporary drainage fitting 1 according to the first embodiment is fitted in the drainage pipe portion 101 b of the roof drain 101 and connected to the temporary drainage hose 102 so that rainwater collected on the floor 100 can be drained to the temporary drainage hose 102.

  At the upper end of the temporary drainage fitting 1, there are provided three flanges 2a, 2b, 2c (see FIG. 2) protruding outward in the radial direction, and are hooked on the tray part 101a of the roof drain 101. The inner pipe portion 3 is coupled downward from the flange portions 2a, 2b, and 2c, and is fitted into the drain pipe portion 101b. As shown in FIG. 3, the inner tube portion 3 includes an inner tube upper portion 3a having a smaller diameter toward the lower side, and an inner tube lower portion 3b coupled in a cylindrical shape downward from the inner tube upper portion 3a. A packing groove 3c is formed in a substantially central outer periphery of the inner pipe upper portion 3a, and an annular packing 4 made of water expansion rubber is fitted in the packing groove 3c so as to be in close contact with the inner periphery of the drain pipe portion 101b of the roof drain 101. It has been. The lower end of the inner pipe portion 3 is fitted in the temporary drain hose 102 (see FIG. 1).

<Construction method>
Next, a construction method will be described.
First, the roof drain 101 is fixed to a formwork of a veranda or balcony before placing concrete, and after covering the upper surface of the tray portion 101a of the roof drain 101 with a protective cover (not shown), concrete is placed. After the concrete has solidified, remove the protective cover. And after attaching the annular packing 4 to the packing groove | channel 3c of the temporary drainage metal fitting 1 (refer FIG. 3), as shown in FIG. 4, one end of temporary drainage hose 102 is attached to the lower end of the inner pipe part 3 of the temporary drainage metal fitting 1. Is inserted and the other end of the temporary drain hose 102 is inserted into the drain pipe portion 101b of the roof drain 101, and the flanges 2a, 2b, 2c of the temporary drain fitting 1 are The roof drain 101 is lowered until it is hooked on the tray part 101a. In this state, the annular packing 4 is brought into close contact with the drain pipe portion 101 b of the roof drain 101. Then, the other end of the temporary drain hose 102 is installed in a drain groove (not shown). Thus, the construction work of the temporary drain hose 102 is completed.

<Removal method>
When removing the temporary drainage hose 102, hold the temporary drainage fitting 1 shown in FIG. 1 by hand, pull it up with the temporary drainage hose 102 and place it on the floor 100, remove the temporary drainage hose 102 from the temporary drainage fitting 1, The drain hose 102 is lowered from the drain pipe portion 101b. Thus, the removal work is completed.

  As described above, in the installation work of the temporary drainage hose 102 using the temporary drainage fitting 1 of the first embodiment, the temporary drainage fitting 1 that is easily connected to the temporary drainage hose 102 is easily attached to the roof drain by an operator on the floor 100. 101 can be installed. Moreover, it is possible to reliably prevent water from leaking from the gap between the inner pipe portion 3 of the temporary fitting 1 and the drain pipe portion 101b of the roof drain 101 by the annular packing 4 made of water expansion rubber. For this reason, all the rainwater flowing into the drain pipe portion 101b of the roof drain 101 can be allowed to flow into the temporary drain hose 102 without leaking.

  Further, when removing the temporary drainage hose 102, if the worker on the upper side of the floor portion 100 is pulled up with the flanges 2a, 2b, 2c of the temporary drainage fitting 1, the temporary drainage hose is removed. 102 can be easily removed. Furthermore, the removed temporary fitting 1 can be reused.

  In addition, even when it is necessary to connect the temporary drain hose 102 after the roof drain 101 is placed on the floor 100, the roof drain 101 can be constructed without any special work.

  The temporary drainage fitting 1 of the first embodiment has the three flange portions 2a, 2b, and 2c protruding in the radially outward direction, but the number of the flange portions may be increased to four or more. Moreover, it is good also as a ring shape which has the hole which connects a collar part to the drain pipe part 101b.

  The present invention is not limited to the description of the embodiment of the invention. Various modifications may be included in the present invention as long as those skilled in the art can easily conceive without departing from the description of the scope of claims.

DESCRIPTION OF SYMBOLS 101a ... Receptacle part 101b ... Drain pipe part 100 ... Floor part 101 ... Roof drain 102 ... Temporary drain hose 2a, 2b, 2c ... collar part 3 ... Inner pipe part (3a ... Inner pipe upper part, 3b ... Inner pipe lower part)
4. Ring packing (packing)

Claims (3)

It is provided with a saucer part and a drain pipe part that is coupled to the saucer part and has an inner diameter that decreases downward, and a temporary drain hose can be attached to and detached from the drain pipe part of the roof drain placed on the floor part. A temporary drainage fitting for mounting,
A hook part that is hooked to the tray part, and an inner pipe part that is coupled downward from the hook part and fitted into the drain pipe part, and connected to the temporary drain hose,
A packing for preventing water leakage from the gap with the drain pipe part is attached to the outer periphery of the inner pipe part,
A temporary drainage fitting for a roof drain, which can be installed and removed from a roof drain by a human hand from above the floor. The temporary drainage fitting according to claim 1, wherein the inner pipe portion has an outer diameter that decreases in a downward direction. The temporary drainage fitting for roof drain according to claim 1 or 2, wherein the packing is made of water expansion rubber.

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