JPH0253667B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a piping fitting arranged outside a piping construction body consisting of a bathtub, a water tank, a waterproof floor panel, a prefabricated toilet, etc., and a piping construction body formed on the piping construction body. This invention relates to a technology for connecting and fixing a mounting panel with a fastener placed inside the mounting panel.

[Prior Art] As an example of connecting and fixing piping fittings arranged on the outside of the mounting board and the mounting board from the inside of the mounting board using fasteners, as shown in FIGS. 4A and B, a bathtub which is the mounting board is There is one in which a drainage elbow 4, which is a piping fitting arranged outside the bottom of the bathtub body 2, is connected and fixed to the bottom 2a of the bathtub body 2. To connect and fix the drainage elbow 4 to the bottom 2a of the bathtub body 2, align the axis A of the connection port 4a of the drainage elbow 4 with the axis B of the insertion hole 2b opened in the bottom 2a of the bathtub body 2. This was done by screwing a fastener 6 inserted into the insertion hole 2b from inside the bathtub body 2 to the connection port 4a of the drainage elbow 4. This work of connecting and fixing the drainage elbow 4 must be completed before the bathtub body 2 is installed, since it is necessary to secure a space for the worker outside the bathtub body 2.

By the way, when constructing the bathtub body 2,
As shown in FIGS. 5A to 5D, there is a method of shortening the construction period by using a floor pan 1 with a washing area. In this construction method, a floor pan with a washing area 1 is installed in advance, and a main drain pipe 3 is installed by using the bathtub body insertion opening 1a opened in the floor pan with a washing area 1 for plumbing work. Next, insert the bathtub body 2 to which the drainage elbow 4 is connected and fixed through the bathtub body insertion opening 1a, and insert the drain pipe 1 that has been connected to the drainage elbow 4 in advance.
1 to the intermediate connector 5 of the main drain pipe 3.
This piping connection work is carried out between the building foundation 7 and the bathtub body 2.
This is done by using the gap between the

[Problems to be Solved by the Invention] However, the method for fixing piping fittings has the following drawbacks.

○B Shape of the mounting board that requires a worker on the outside and inside of the mounting board, respectively, when connecting and fixing plumbing fixtures (e.g., drainage elbow 4) to the mounting board (e.g., the bottom 2a of the bathtub body 2) In this case, it cannot be done by one worker and the work efficiency is very low.

○B When connecting one end of a pipe to a piping fitting outside the mounting panel (for example, drainage elbow 4) and connecting the other end to another pipe, if space for the connection work cannot be secured. It is necessary to provide a working opening (not shown) in an appropriate location on the mounting panel. As a result, the number of man-hours required increases and the aesthetic appearance of the mounting board is degraded. Further, if it is not possible to provide a working opening in the mounting board, it is necessary to provide a working opening in the wall surface of the building frame, which significantly increases the number of working steps.

In order to solve the above-mentioned drawbacks, the present invention provides a method for fixing piping fittings that can connect and fix piping fittings arranged outside the mounting board to the mounting board even if there is no worker outside the mounting board, and a method for fixing piping fittings used in this method. We will provide the ingredients.

[Means for solving the problem] The method for fixing a piping fitting according to the first invention is to arrange the piping fitting on the outside of the mounting board formed on the piping construction body, and to align the axis of the connection port of the piping fitting with the mounting board. Align the axis of the insertion hole opened in In the method for fixing a piping fitting by pinching the peripheral edge of the piping fitting, the starting end located on the axis of the connection port of the piping fitting is connected to the piping fitting and the extending guide string is pulled out inside the mounting board through the insertion hole. The first step is to pull the guide thread by hand to align the axis of the connection port of the piping fitting with the axis of the insertion hole, and then remove the guide thread after screwing the tightening tool.

The second invention is a piping fitting in which a flange is formed on the outer periphery of the connection port, and the starting end located on the axis of the connection port is connected to the piping fitting to extend the guide thread. .

[Function] The method of fixing the piping fitting, which is the first invention, is such that when the guide thread pulled out to the inside of the mounting board through the insertion hole is pulled up by hand, the axis of the connection port of the piping fitting and the axis of the insertion hole are aligned. Since the connection port is brought close to the mounting board in the state that the pipe is in the same position, the operator inside the mounting board can screw the fastener into the connection port of the piping fitting by himself, and only needs to remove the guide thread after screwing. You can complete the work of fixing the piping fittings.

In the piping fitting of the second invention, since the starting end of the guide thread is located on the axis of the connection port, when the guide thread is pulled together, the axis of the connection port can be aligned with a predetermined position.

[Description of Embodiments] The present invention will be described below based on embodiments shown in the drawings.

(First Embodiment) FIGS. 1A and 1B show a first embodiment of the first and second inventions, and numeral 8 in the figures indicates a piping fitting. As shown in FIG. 8A, the piping fitting 8 has an elbow-shaped or tee-shaped outer shape (not shown), and a flange 8b is formed on the outer periphery of the connection port 8a.
A female thread 8c is formed on the inner circumferential surface of the connecting port 8a, and a threaded portion 8d is formed at a location where the axis _A1 of the connection port 8a intersects with the inner surface of the main body.A flexible thread made of synthetic resin thread, wire, chain, etc. The screw 15 attached to the starting end of the guide thread 9
is removably screwed onto the threaded portion 8d so that the guide thread 9 extends outward. Note that the connection between the guide thread 9 and the piping fitting 8 is not limited to the screwing method described above, and although not shown, a small protrusion is used at the point where the axis A ₁ of the connection port 8a intersects with the inner surface of the piping fitting. Of course, it is also possible to connect the leading end of the guide thread 9 removably by forming a hole in the small protrusion and tying the starting end of the guide thread 9 to an insertion hole formed in the small protrusion.

Next, a method of fixing the piping fitting 8 will be explained. First, a pipe consisting of a drainage elbow is installed at a predetermined position on the lower outside of the mounting board 10 that forms the bottom of the bathtub body (see 2 in Fig. 5), water tank, waterproof floor panel, etc. (hereinafter simply referred to as the piping construction body). Arrange the fittings 8 and connect the piping fittings 8
The connection port 8a is brought close to the insertion hole 10a of the mounting board 10. The piping fittings 8 may be attached to the piping 11 in advance before installing the piping construction body and placed on the floor surface of the framework, or after the piping construction body is installed, the piping fixtures 8 may be attached to the piping construction body and the floor surface of the framework, etc. Piping 11 between
It is placed attached to the Next, mounting board 1
An operator (not shown) located at the upper inner side C of the mounting board 10 uses the hook 16 to insert the guiding thread 9 into the opening of the tightening tool 12 inserted into the insertion hole 10a of the mounting board 10. 12a to the inside C of the mounting board 10. The fastener 12 may also serve as a valve seat for a water stop valve (not shown). continue,
The operator brings the guide line 9 together and brings the connection port 8a close to the mounting board 10 with the axis A ₁ of the connection port 8a of the piping fitting 8 aligned with the axis B ₁ of the insertion hole 10a. , screw the fastener 12 onto the female thread 8c of the piping fitting 8 (see B in the same figure). The mounting board 10 is
If necessary, an anti-rotation piece 10b hangs down from the bottom surface, and the polygonal flange 8b of the piping fitting 8
The outer surfaces of the two are in contact with each other. Note that the triangular packing 13 and spring washer 14 arranged on the lower surface side of the mounting board 10 may be attached in advance to the lower surface side of the mounting board 10 by appropriate means, or the piping fittings 8
It is attached to the upper surface of the flange 8b by appropriate means.
Finally, the screw 15 attached to the starting end of the guide string 9 is removed from the threaded portion 8d of the piping fitting 8, the guiding string 9 is removed, and the work of fixing the piping fitting 8 is completed.

(Second Embodiment) FIG. 2 shows a second embodiment of the first and second inventions, and 18 in the figure is a piping fitting. The piping fitting 18 has a trap function, a flange 18b is formed on the outer peripheral edge of the connection port 18, a female thread 18c is formed on the inner peripheral surface of the connection port 18a, and an axis A ₂ of the connection port 18a and the inner surface of the main body are formed. There is a threaded part 18 at the place where they intersect.
d is formed and the screw 1 is attached to the starting end of the guide thread 9.
5 is releasably screwed onto the threaded portion 18d, and the guide thread 9 is attached.
is extended outward.

Next, a method of fixing the piping fitting 18 will be explained.
First, the piping fitting 18 is placed at a predetermined position on the lower outside of the mounting plate 20 that forms the bottom of the piping construction body consisting of a washing area (see 1b in Fig. 5) or a waterproof floor pan, and the connection port of the piping fitting 18 is 18a is brought close to the insertion hole 20a of the mounting board 20. Next, the mounting board 20
An operator (not shown) at the upper inner side C uses the hook 16 (see FIG.
It is pulled up to the inside C of the mounting board 20 through the opening 22a of the fastener 22 inserted through the hole 0a. Next, the operator pulls up the guide thread 9 and aligns the axis A ₂ of the connection port 18a of the piping fitting 18 with the axis B ₂ of the insertion hole 20a.
Connect the connection port 18a to the mounting board 20 with the
, the tightening tool 22 is screwed onto the female threaded portion 18C of the piping fitting 18. Finally, the screw 15 attached to the starting end of the guide string 9 is removed from the threaded portion 18d of the piping fitting 18, the guide string 9 is removed, and the work is completed.

(Third Embodiment) FIGS. 3A, B, and C show a third embodiment of the first and second inventions, and 28 in the figures is a piping fitting. The piping fitting 28 is formed in a nipple shape, has a flange 28b formed on its outer periphery, has a female thread 28d formed on the inner periphery of the connection port 28a, and has a male thread 28c formed on the outer periphery of the connection port 28a. A plug screw 25 attached to the starting end of a guide string 9 made of synthetic resin thread, wire, chain, etc. is removably screwed into the threaded portion 28d.

Next, a method of fixing the piping fitting 28 will be explained.
First, the piping fitting 28 connected to one end of the piping 31 is placed at a predetermined position on the outside D of the mounting board 30 that forms the side wall of a piping construction body consisting of a unit bath with a washing area, a water tank, a prefabricated toilet, etc. The connection port 28a of the tool 28 is brought close to the insertion hole 30a of the mounting board 30. Next, the operator (not shown) inside the mounting board 30 uses the hook 16 (see FIG. 1A)
etc., insert the guide thread 9 into the insertion hole 30 of the mounting board 30.
Pull it out to the inside C of the mounting board 30 via a. Next, the operator pulls up the guide thread 9 and inserts the male screw portion 28c of the piping fitting 28 into the insertion hole 30 of the mounting board 30.
After inserting the piping into the pipe fitting 28, the tightening tool 32 is screwed onto the female screw portion 28c of the piping fitting 28, as shown in FIG.
Finally, after removing the plug screw 25 attached to the starting end of the guide string 9 from the threaded portion 28d of the plumbing fixture 28, as shown in FIG.
8 to the threaded portion 28d to complete the work.

[Effects of the Invention] As detailed above, the present invention has the following excellent effects.

The method for fixing the piping fitting according to the first invention is that when the guide thread pulled out inside the mounting board through the insertion hole is pulled up by hand, the axis of the connection port of the piping fitting and the axis of the insertion hole are aligned. Since the connection port is close to the mounting board, a worker inside the mounting board can screw the fastener into the connection port of the piping fitting by himself, and work efficiency can be improved compared to the conventional method.

The method for fixing piping fittings according to the first invention allows a worker inside the mounting panel to connect and fix the piping fittings by himself without providing an opening for work on the mounting panel or the wall surface of the building frame. It is possible to reduce the amount of water and not to damage the aesthetic appearance of the mounting board.

In the piping fitting of the second invention, the axis of the connection port can be brought into alignment with a predetermined position by manually pulling the guide line, so that work efficiency can be improved.

[Brief explanation of the drawing]

1 to 3 show a method for fixing a piping fitting and an embodiment of the piping fitting according to the present invention, FIGS. 1A and B are cross-sectional views showing the first embodiment, and FIG. A cross-sectional view showing the second embodiment; FIGS. 3A, B, and C are cross-sectional views of main parts showing the third embodiment; FIGS. 4A and B are cross-sectional views showing a conventional method of fixing piping fittings and a fixture. , FIGS. 5A to 5D are explanatory diagrams showing the conventional piping construction procedure for a bus with a washing area. 8, 18, 28...Piping fitting, 9...Guiding thread, 1
0,20,30...Mounting board, 12,22,32...
...Tightening tool, 15...Screw.

Claims (1)

[Claims] 1. A piping fitting is arranged outside a mounting board formed in a piping construction body, and the axis of the connection port of the plumbing fitting is aligned with the axis of an insertion hole opened in the mounting board, In the method for fixing a piping fitting, in which the peripheral edge of the insertion hole of the mounting board is held between the flange formed on the plumbing fitting and the fastener by screwing the fastener to the connection port of the piping fitting from the inside of the mounting board. Connect the starting end located on the axis of the connection port of the piping fitting to the piping fitting, pull out the extending guide string to the inside of the mounting board through the insertion hole, bring the guide string together by hand, and align the axis of the connection port of the piping fitting. A method for fixing a piping fitting, the method comprising: aligning the axis of the fitting with the axis of the insertion hole, and removing the guide thread after screwing the fastener. 2. A piping fixture having a flange formed on the outer periphery of the connection port, characterized in that a starting end located on the axis of the connection port is connected to the piping fixture to extend a guide thread. 3. A threaded portion is formed at a location where the axis of the connection port of the piping fitting intersects with the inner surface of the plumbing fitting, and a screw attached to the starting end of the guide thread is removably screwed into the threaded portion. The piping fittings described in paragraph 2. 4. The piping fitting according to claim 2, wherein a female thread is carved into the inner peripheral surface of the connection port, and a plug screw attached to the starting end of the guide thread is removably screwed into the female thread. .