JPS6235728Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a drainage device.

In order to smoothly drain water from the bathtub and washing area in a bath set, or from the waterproof pan of an equipment unit, a drainage device communicating with a drain pipe is provided at the drain port of the bathtub, washing area, or waterproof pan.

With conventional drainage devices, when inspecting or cleaning the underside of the bath set or waterproof pan, or when replacing the bath set or waterproof pan, the drainage device cannot be easily disassembled. Lifting and cutting of drainage pipes were also required.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional system, and the drainage system can be easily assembled and disassembled, inspection, cleaning, and parts can be replaced without any trouble, and the drainage system can sufficiently prevent water leakage. It provides equipment.

Another object of the present invention is to provide a drainage device that can be assembled and disassembled almost exclusively from above, and has extremely improved work efficiency.

The gist of the present invention is that the upper end of the drain tube protrudes from below the drain hole, a female thread and a male screw are formed on the inner and outer walls of the upper end of the drain tube, and an outer flange that protrudes from the drain tube and the drain hole. The peripheral edge of the drain hole is clamped by a tightening ring screwed onto the male thread at the top end of the tube, and a drain receiver with an outer flange protruding from the top end is attached to the female screw at the top end of the drain tube. The drainage system is screwed onto the drain.

1 and 2 show an example of a bath set 1 in which the drainage device 10 of the present invention is used. A large recess on the right side of the bath set 1 constitutes a washing area 2.

The left side of the bath set 1 is a bathtub installation part 3 into which a bathtub 4 can be fitted.

The bath set 1 is provided with legs 5, 5 and is installed on a concrete floor 6. As shown in Figures 1 and 2, the water from the washing area 2 is drained through the drain hole 7.
The water is then discharged through the drainage trap 8 through the drainage device 10 of the present invention. Drainage water from the four bathtubs passes through the drain hole 9 to the drainage device 10 of the present invention, is led to the drain trap 8 by a connecting pipe 11, and is drained outdoors together with the drainage water from the washing area 2.

FIGS. 3 and 4 show an enlarged view of the drainage device 10 used in the bathtub 4 of the bath set 1 shown in FIGS. 1 and 2. FIG. A recess 12 is formed at the periphery of the drain hole 9 of the bathtub 4. Drain tube 2 of drainage device 10
The upper end portion 21 of the drain hole 9 projects from below the drain hole 9. An outer portion 22 protrudes from a substantially central portion of the drain pipe 20, and is brought into contact with the lower surface of the recessed portion 12 via a packing 30, which will be described later.

A female thread and a male thread are formed on the inner and outer walls of the upper end 21 of the drain pipe 20, and a male thread is formed on the outer wall of the lower end 23. A tightening ring 24 is screwed onto the male thread at the upper end of the drain tube 20 .

The upper surface of the tightening ring 24 has a recess 25 for tightening.
25 are provided. A packing 30 having a U-shaped cross section is provided between the tightening ring 24 and the outer collar 22.
The peripheral edge of the drain hole 9 of the bathtub 4 is clamped.

Reference numeral 26 denotes a drainage receiver, which is screwed to a female thread at the upper end of the drain pipe 20 by a male thread formed on the outer wall. An outer collar 27 projects from the upper end of the drainage receiver 26 and presses against the tightening ring 24 via a packing 28. Four projections 29, 29 for rotation are provided at the lower part of the inner wall of the drainage receiver 26. A drain plug 31 is fitted into the drain receiver 26.

Next, a procedure for assembling the above-mentioned drainage device 10 will be explained.

Install the bath set 1, connect the drain trap 8 and the connecting pipe 11, etc., and connect the drain pipe 2 to the upper end of the connecting pipe 11.
The lower end portion 23 of 0 is screwed and tightened. Next, while fitting the bathtub 4 into the bathtub installation part 3, the drain hole 9 and the drain tube 20 are aligned, and the upper end 2 of the drain tube 20 is inserted.
1 is made to protrude from the drain hole 9. A packing 30 having a U-shaped cross section is installed at the peripheral edge of the drain hole 9, and the tightening ring 24 is screwed onto the female thread of the upper end 21 of the drain pipe 20 using the recesses 25, 25.

Then, the packing 28 is installed on the tightening ring 24, the drain receiver 26 is screwed onto the female thread of the upper end 21 of the drain tube 20 using the protrusions 29, 29, and the outer flange 27 is pressed against the packing 28. urge

When replacing the bathtub 4 and packing 28, 30, when inspecting and cleaning the connecting pipe 11, etc. below the bathtub 4, perform the above operation in the reverse order.
6 and the tightening ring 24 are removed, and the bathtub 4 can be lifted up from the lifting bathtub installation part 3.

In this manner, the drainage device 10 of the present invention can be assembled and disassembled from above, and parts replacement, inspection, and cleaning operations can be performed.

FIG. 5 shows an enlarged view of the drainage device 10 of the present invention used in the drainage hole 7 of the washing area 2 in the bath set 1 shown in FIGS. 1 and 2. A drain pipe 20 of a drainage device 10 is connected to a drain trap 8 on the back side of the washing area 2, and is convenient for draining the floor of the washing area 2.

The drain tube 20 is fastened to the upper end of the drain trap 8, the drain device 10 is assembled, and the perforated plate 32 is attached to the drain receiver 26.
Set up. The structure of the drainage device 10 is shown in Figures 3 and 4.
This is the same as explained in the figure.

When directly connecting the drain trap 8 and the drain hole 7, it is very difficult to align and connect the upper end of the drain trap 8 on the back side of the washing area 2 of the bath set 1 with the drain hole 7. By using the device 10, positioning can be easily done by protruding the upper end of the drain tube 20 from the drain hole 7, and the work of screwing the tightening ring 24 onto the upper end of the drain tube 20 can be done by simply protruding the upper end of the drain tube 20 from the drain hole 7. It is reliable and convenient because it can be done without hiding the upper end of the screen.

In addition, in the above example, the drain pipe 2 of the drainage device 10 of the present invention
0 is connected to a drain trap 8 on the back side of the washing area 2 of the bath set 1, but it can also be applied to a waterproof pan (not shown) or a drain trap on the back side of the bathtub.

As explained above in detail, the drainage device of the present invention has the above-mentioned structure, so the drain hole of the bath set or waterproof pan and the drain tube can be easily connected and removed from above the drain hole, making installation and construction easier. Repairs and replacements of drainage traps, etc. can be carried out easily. That is, when the upper end of the drain tube is made to protrude from the drain hole and the tightening ring is screwed onto the external male thread of the upper end of the drain tube, the drain tube is not hidden from above, and the screwing operation is reliably and easily performed.

Furthermore, the drain receiver is screwed onto the female thread at the upper end of the drain tube, and the outer flange of the drain receiver presses against the tightening ring, so the packing between the drain hole periphery and the tightening ring is prevented by screwing. Even if the drain is deformed, the packing between the tightening ring and the outer flange of the drain receiver will ensure that the water can be stopped.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a bath set using the drainage device of the present invention, Fig. 2 is a longitudinal cross-sectional view,
3 and 5 are longitudinal sectional views showing an example of the drainage device of the present invention, FIG. 4 is a plan view of the drainage device of FIG. 3, 1 is a bath set, 2 is a washing area, 3 is a bathtub installation part,
4 is a bathtub, 5 is a leg, 6 is a concrete floor, 7 is a drain hole, 8 is a drain trap, 9 is a drain hole, 10 is a drainage device, 11 is a connecting pipe, 12 is a recess, 20 is a drain pipe, 21 is Upper end, 22 is outer flange, 23 is lower end, 24 is tightening ring, 25 is recess, 26 is drainage receiver, 27 is outer flange, 28 is packing, 29 is protrusion, 30 is packing, 31 is drainage Stopper, 32 is perforated plate.

Claims (1)

[Scope of utility model registration request] The upper end of the drain tube protrudes from below the drain hole, and a female thread and a male screw are formed on the inner and outer walls of the upper end of the drain tube. The periphery of the drainage hole is narrowly secured by a tightening ring screwed onto the male thread,
A drainage device in which a drainage receiver having an outer flange projecting from the upper end is screwed onto a female thread at the upper end of the drainage tube.