JPS5817821Y2 - Yokusou High Watermelon Nagu - Google Patents

Description

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

Conventionally, bathtub drainage has been done either directly by connecting a drain pipe to the outlet of the bathtub drainage device and draining the water to the main drainage pipe or outdoors, or by draining water onto the floor where the bathtub is installed without connecting a drain pipe to the bathtub drainage device. There is indirect drainage.

A bathtub drainage device for direct drainage has a male thread for connecting the drain pipe at the end of the main body of the drainage device, and the length of the main body of the drainage device may vary depending on the installation position, variations in the shape of the bathtub drain port, or the drainage device. The main body was made longer in consideration of variations in installation work, so the protrusion from the back of the bottom of the bathtub was large.If the main body of the drainage device for direct drainage was used as is for indirect drainage, the end of the main body of the drainage device and the floor would There is no space between them, causing problems with drainage.

Therefore, it is a good idea to cover the bathtub legs with enough wall coverings, but if there is insufficient wall covering, drainage will be poor, and if the wall coverings are placed too high, the gap at the bottom of the apron will be noticeable and unsightly.

Therefore, the main body of the drainage device for indirect drainage is not provided with a male thread for connecting the drain pipe for direct drainage, since this is not necessary.

In addition, since it is better for the main drainage device to protrude from the back of the bottom of the bathtub to be small from the viewpoint of transportation, the main drainage device for indirect drainage does not have a male thread for connecting the drain pipe for direct drainage, and is designed to be installed from the back of the bathtub. The protrusion is made smaller.

For this reason, it is necessary to prepare the bathtub drainage device in two ways, one for direct drainage and one for indirect drainage, resulting in an increase in the number of parts and a problem of increased cost.

In addition, inventory management was difficult due to the large number of parts.

The present invention solves these problems and provides a bathtub drainage device that can be used for both direct and indirect drainage.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 shows a conventional example, and Figs. 2 and 3 show two examples according to the present invention.
It is shown as follows.

In FIG. 1, 1 is a bathtub drain port, and 2 is a drainage device, which consists of a main body 3 of the drainage device and a tightening nut 4.

The drain device main body 3 is inserted into the bathtub drain port 1, and the male screw portion 6 provided on the outer circumference and the female screw portion 6' provided on the inner circumference of the tightening nut 4 are screwed together, and the flange 3 on the upper part of the drain device main body 3 is screwed together. The circumferential edge of the bathtub drain port 1 is sandwiched between the locking nut 4 and the tightening nut 4.

Reference numeral 8' denotes a male screw part for connecting a drain pipe provided in the main body 3 of the drainage device, and is connected to the male screw part 6.

In the case of indirect drainage, this male screw portion 8' is not provided.

The protruding length from the lower end surface of the bathtub drain port 1 in the drainage device main body 3 for direct drainage to the lower end of the drainage device main body 3 is indicated by a1 and b in the case of indirect drainage.

Therefore, the main body 3 of the drainage device for direct drainage is long by the length a-b, in other words, by the length of the male screw portion 8' for connecting the drain pipe.

5 is Patsukin. FIG. 2 shows the structure of the drainage device 2 according to the first embodiment of the present invention, in which the main body 3 of the drainage device is inserted into the bathtub drain 1, and the male screw portion 6 provided on the outer periphery of the lower part and the inner periphery of the tightening nut 4 are connected to each other. Screw together the provided female screw part 6' and connect the main body 3 of the drainage device.
The periphery of the bathtub drain port 1 is sandwiched between the upper flange 3' and the tightening nut 4, and a tightening part 7 is provided on the outer periphery of the tightening nut 4.
The main body 3 of the drainage device is fastened to the bathtub drain 1 using the screws.

The length of the male threaded portion 6 of the main body 3 of the drainage device is such that the lower end of the tightening nut 4 is approximately aligned with the lower end of the male threaded portion 6 when the main body 3 is fastened to the bathtub drain 1. There is.

A sealing material may be applied to the lower surface of the flange portion 3' for fastening.

Alternatively, the male threaded portion 6° and the female threaded portion 6' may be screwed together by applying an adhesive.

On the outer periphery of the tightening nut 4, a male screw part 8 for connecting a drain pipe or a drain pipe joint 9 is formed with a different outer diameter than the tightening part 7, as shown in FIG. In the case of direct drainage, attach a drain pipe or drain pipe joint 9 to the male screw part 8 of the tightening nut 4.
In the case of indirect drainage, the drain pipe or drain pipe joint 9 may be used as is without screwing.

The protruding length from the lower end surface of the bathtub drain port 1 to the lower end of the main body 3 of the drainage device is represented by C.

FIG. 3 shows a second embodiment of the present invention, in which the positions of the tightening portion 7 and the male screw portion 8 provided on the outer periphery of the tightening nut 4 are reversed from those in the first embodiment.

As described above, in the present invention, only the tightening part and the female screw part for connecting the drain pipe are provided on the outer periphery of the tightening nut, so the overall length of the tightening nut is shortened, and the same device can be used for direct drainage and indirect drainage. Can be used for both drainage devices.

Therefore, the number of parts is reduced compared to before, inventory management is easier, and costs are lower. At the same time, when assembling on site or arranging parts, it is easy to check whether the bathtub is a direct drainage type or an indirect drainage type. No need to consider.

In addition, the length of the main body of the drainage device protruding from the lower end of the bathtub drain outlet is reduced compared to conventional direct drainage systems, making it more compact and less likely to cause obstructions during transportation of the bathtub, reducing the risk of damage to the drainage device. Not at all.

In addition, since a male thread for connecting the drain pipe is formed on the outer periphery of the tightening nut, the shape of the bathtub drain port, and The effective length of this male thread does not change due to variations in installation work, making it easier to connect the drain pipe.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing a conventional example, FIG. 2 is a vertical cross-sectional view showing a first embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view showing a second embodiment of the present invention. 1: Bathtub drain, 3: Drainage device main body, 3': Flange, 4:
Tightening nut, 6: male threaded part, 6': female threaded part, 7: tightening part, 8: male threaded part.

Claims (1)

[Scope of utility model registration request] A cylindrical drainage device main body having an annular flange at the upper part and a male threaded part at the lower outer periphery, and a tightening nut having a female threaded part that is screwed into the male threaded part, In a bathtub drainage device in which the main body of the drain device is attached to the bathtub by fitting into the drain port and sandwiching the peripheral edge of the drain port between the flange and the tightening nut, the length of the male screw portion of the main body of the drain device is The length of the tightening nut is such that when the main body of the drainage device is attached to the bathtub, the lower end of the tightening nut is almost aligned with the lower end of the male thread of the main body of the drainage device, and the outer periphery of the tightening nut has a tightening portion. A bathtub drainage device for both direct drainage and indirect drainage, characterized in that it is equipped with only a male screw part for connecting a drain pipe.