JPS5932374Y2 - Drain plugs for bathtubs, etc. - Google Patents

Description

[Detailed description of the invention] This invention relates to drain plugs for bathtubs, wash basins, etc. It can be used for drain holes of different diameters, and there is a slight difference between the drain hole and drain plug used. The object of the present invention is to provide a drain plug that can be fitted almost completely tightly to prevent water leakage even if there is a drain plug, and that can be provided at a low price by simplifying the assembly work in the manufacturing process.

Conventionally, the specifications of bathtubs, etc. differed depending on the manufacturer, and the size and diameter of the drain hole was also 1 inch, 1 inch, etc.
There are different sizes, such as 1-inch, 14-inch, etc., and even for 1-inch drainage holes, the diameter is often not the same depending on the manufacturer.

Therefore, when it comes to drain plugs used for these drain holes, especially replacement plugs, it is necessary for retailers to prepare a wide variety of replacement plugs for each manufacturer, which makes inventory management troublesome and also makes consumers uncomfortable. There was an inconvenience in that users could not purchase a drain plug unless they remembered the name of the manufacturer of the bathtub, etc. they were using.

In view of the current situation, this invention provides a pair of large and small plugs with different diameters, the small plug is detachably attached to the large plug, and an auxiliary plug with a bolt attachment part is placed inside the small plug. , each of the plugs is held in a detachable manner by bolts, so that a large plug suitable for the diameter of the drain hole can be selected by engaging and removing the bolts, and the plug itself is made to retain its flexibility, so that it can be easily attached to and removed from the drain hole. It is designed to completely stop water even if there is some error in the caliber.

Hereinafter, the embodiment will be explained based on the drawings.As shown in Fig. 2, the drain plug of this invention has two different diameters.
A pair of plug bodies 1 and 2 and an auxiliary plug body 3 having a bolt attachment part;
It consists of a bolt 4 that holds each plug body 1, 2, and 3 in a detachable manner, and the large plug body 1 and the small plug body 2 differ only in diameter, and both have a truncated head with an open upper end. A cylindrical guide portion 1 is located below the inverted conical cylindrical stopper 11.21.
2.22 are integrally protruded, and notches 13 and 23 are formed on the back surface of the guide portion 12.22, respectively, and the cylindrical stopper 11 and 21 are formed in the center of each notch 13.23.
Through-holes 14 and 24 for passing bolts communicating with the bottom surface 11a21a are bored, and in the embodiment, each through-hole 14 and 24 is provided with a screw to be screwed into the bolt 4, respectively. , it is not necessarily necessary to provide screws on the inner circumferential surfaces of the through holes 14 and 24.

In addition, a ring-shaped cutout groove 15 is provided on the bottom surface 11a of the cylindrical stopper 11 of the large stopper 1, and the tip of the cylindrical guide portion 22 of the small stopper 2 that fits inside the stopper 1 is engaged. Although the structure is configured to prevent the stopper body 2 from moving within the stopper body 1,
The notched groove 15 does not necessarily need to be provided.

The auxiliary stopper 3 has a disc-shaped cover plate 31 with a larger diameter than the diameter of the opening at the upper end of the cylindrical stopper 11 of the large stopper 1, and a protrusion 32 for attaching a chain to the upper part thereof, and a protrusion 32 for attaching a chain at the center of the lower part. Column-shaped bolt attachment parts 33 which are higher than the height of the cylindrical stopper 11 of the large plug body 1 are integrally provided, and each of the bolt attachment parts 33 is provided with a screw hole 34 in the axial direction from the bottom surface. The bolt 4 and the auxiliary plug body 3 which are screwed into the screw hole 34 are each made of heat-resistant soft synthetic wood and are integrally formed, and the plug bodies 1 and 2 are each made of an elastic material such as heat-resistant rubber. The small plug body 2 is fitted into the large plug body 1, and the tip of the bolt attachment part 33 of the auxiliary plug body 3 is connected to the bottom surface 2 of the small plug body 2.
1a, the through hole 14 of the plug 1, the through hole 24 of the plug 2, and the threaded hole 34 of the auxiliary plug 3 are located on the same axis, so the bolt 4 is inserted from below the plug 1. insert the threaded part of the bolt 4 through the through hole of the plug body 1゜2 and attach it to the auxiliary plug body 3.
It is screwed into the threaded portion 34 of the stopper 2, 2, and 3 to engage the plugs 2, 2, and 3 together.

For example, if the large plug 1 is made sized to fit a 14-inch drain hole and the small plug 2 is made to fit a 1-inch drain hole, the drain plug of this invention can be used for lin or l+in. It can be used for drainage holes with a diameter of 1-)i
In the case of n, it is used as it is, and in the case of 1 inch, the bolt 4 is loosened and the large plug 1 is removed as shown in FIG.

Since the drain plug of this invention is constructed as described above, when using it, either the large or small plug is selected according to the size of the drain hole, and the plug is fitted into the drain hole. 2 has guide parts 12 and 22 protruding below the truncated cone-shaped cylindrical stoppers 11 and 31 whose upper ends are open.
2. 22 smoothly inserts the plug body 1, to guide it to the drain hole 5.
2 can be fitted into the drain hole 5, and if there is a slight difference between the plug to be used and the drain hole 5, that is, if the plug is slightly larger than the drain hole, insert the plug into the drain hole. 1 or 2, the lower circumferential wall of the cylindrical stopper 11 or 21 will open, since each stopper body 1 or 2 is composed of a cylindrical stopper 11 or 21 in the shape of a truncated inverted cone with an open upper end. While coming into close contact with the inner wall of the drain hole 5, the upper circumferential wall is bent inward, and when the diameter of the drain hole 5 is large, the upper circumferential wall of the cylindrical stopper 11 or 21 comes into close contact with the inner wall of the drain hole 5, And in either case, the auxiliary stopper 3
The cover plate 31 contacts the floor 6 of the bathtub, etc., closes the opening of the drain hole 5, completely prevents water leakage, and allows the stopper 1 or 2 to be easily removed from the drain hole 5. do not have.

As mentioned above, the drain plug of this invention consists of a pair of large and small plugs having the same structure, a small plug is fitted into the large plug, and a bolt of the auxiliary plug is placed in the small plug. Bolt threads inserted from below the large plugs into the threaded holes of the mounting section through the through holes of each plug are screwed together, and each plug can be freely engaged and detached, so that the diameter of the drain hole can be adjusted. A stopper of an appropriate size can be used by attaching and detaching the bolt, and since the stopper is constructed with a truncated inverted conical cylindrical stopper with an open upper end, it is easy to connect the drain hole to the stopper. Even if there is some error, the plug can be tightly fitted into the drain hole.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the drain plug of this invention, Fig. 2 is a partially cutaway front view of the disassembled state, Fig. 3 is a sectional view showing an example of its use, and Fig. 4 is a drain hole. It is a partially cutaway front view of the attached state. 1.2...Plug body, 3...Auxiliary stopper body, 4
...Pol), 11゜21...Cylindrical stopper, 12.22...Guide part, 13.23...
...Notch, 14.24...Through hole, 31...
... Lid plate, 32 ... Protrusions, 33 ...
...Bolt mounting part, 34...Screw hole.

Claims (3)

[Scope of utility model registration request] (1) A guide portion is provided protruding below the cylindrical stopper in the shape of a truncated inverted cone with an open upper end, a notch is formed on the back surface of the guide portion, and the cylindrical stopper is provided at the center of the notch. A pair of large and small plugs with different diameters are provided with a transparent structure that communicates with the bottom of the large plug, and a lid plate with a diameter larger than the diameter of the opening of the large plug is provided with protrusions for attaching a chain to the upper part of the lid plate. An auxiliary stopper body having a threaded hole in the axial direction from the bottom surface in the center and a bolt attachment part protruding from the large cylindrical stopper height is provided, and a small stopper body is fitted into the large stopper body. At the same time, place the bolt attachment part of the auxiliary plug in the small plug, insert the bolt through the through hole of each plug from below the large plug, and attach the threaded part of the bolt to the bolt attachment part. A drain plug for bathtubs, etc., which is screwed into the threaded part of the section, so that each plug body can be freely engaged and detached. (2) The drain plug for a bathtub or the like according to claim 1, wherein each of the pair of plugs is made of heat-resistant rubber. (3) The drain plug for a bathtub or the like according to claim 1, wherein the auxiliary plug body and the bolt are made of heat-resistant soft synthetic resin.