JPH0426072Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a new bathtub drain cap that can be opened with a small force against high water pressure proportional to the water level in the bathtub. It is something.

[Problems to be solved by conventional technology/devices] Conventional drain plugs for bathtubs are generally formed into columnar bodies and have a structure that is inserted into the drain opening. Conventional drain plugs are designed to be inserted into a drain opening, so when removing the drain plug, the entire surface that comes into contact with the valve seat of the drain plug must be separated at once. Since the surface in contact with the drain valve is under high water pressure proportional to the water level in the bathtub, pulling out the drain plug requires a large force to resist the water pressure, and as a result, the pull on the drain plug is reduced. This often results in the string being cut, and furthermore, in order to pull out the drain plug inserted into the drain hole, it is necessary to pull the drawstring vertically.
If the drawstring is slanted, the drain plug may become stuck in the drain opening, making it more difficult to remove the drain plug, and the drawstring may easily break.

In order to eliminate the above-mentioned drawbacks, the present invention includes a flexible lid body formed in an inverted bowl shape, and a lid body formed in an inverted bowl shape with a smaller diameter than the lid body and overlapped concentrically on the upper surface of the lid body. a presser plate that is fixedly installed, an action plate that is integrally installed on the upper surface of the presser plate, a mounting member that is formed so as to be foldable in two and is installed at one end of the action plate, and the action plate that is attached to the a spring provided on the mounting member to apply a pressing force to the lid body;
A drain lid plug is formed with a drawstring provided at the other end of the action plate, and the mounting member is used to seal the bottom of the drain of the bathtub, and the spring force and presser provided in the mounting member are used to close the lid. The main body is elastically covered and closed to the drain of the bathtub, and when the drawstring is pulled up, the lid main body opens partially and then opens completely, so it opens with a small force without being affected by water pressure or the angle of the drawstring. It is made to be operable.

[Means for Solving the Problems] An example of the implementation of the present invention will be described below with reference to the drawings. The lid main body 1 is formed in the shape of a flexible inverted bowl,
A presser plate 2 formed in the shape of an inverted bowl with a smaller diameter than the lid body 1 is placed on top of the top surface of the lid body 1 and installed concentrically, an action plate 3 is installed on the top surface of the presser plate 2, and these lid bodies 1, presser plate 2, and action plate 3 are coaxially overlapped and fixedly installed at the center of the lid body 1 by bolts 4, and a base portion 5 is integrally formed at the center of the upper surface of the lid body 1. The outer circumferential edge 6 of the presser plate 2, which is placed on top of the lid main body 1, is located inside the outer circumferential edge 7 of the lid main body 1 and is spaced at a desired distance. An extension part 8 whose end extends outward from the lid main body 1 is provided, and a mounting member 9 is installed on the lower surface of the tip of the extension part 8, and the mounting member 9 has two wing pieces 9a, 9b is made to be freely foldable in two via a pivot 10, and a torsion coil spring 11 is inserted into the pivot 10, and one wing piece 9a is integrally connected to the extension part 8 of the action plate 6, The other wing piece 9b is installed on the bottom surface 13 of the bathtub 12, and the spring 11 closes the lid body 1.
The periphery of the drain port 14 is tightly pressed against the bottom surface 13 around the drain port 14 so that the cover can be freely closed.

Note that 15 is a drawstring, one end of which is connected to the end of the action plate 3 on the side opposite to the mounting member 9, and the other end connected to the opening/closing handle 16. The opening/closing handle 16
As shown in the figure, the handle comprises a mounting plate 18 having a screw hole 17 in the center, a cylindrical portion 19, a screw rod 20 in the center, and a coil spring 21 inserted into the screw rod 20. 22 and more,
The handle 22 is inserted into the screw hole 17 of the installation plate 18.
The screw rod 20 is screwed to suppress the free rotation of the handle 22 by the spring force of the coil spring 21,
A hook 23 is provided protruding from the cylindrical portion 19 of the handle 22, and the end of the drawstring 15 is connected to the hook 23. The handle 12 is connected to the bathtub 12.
installed at a predetermined location on top of the

[Function] Since the present invention has the above-described configuration, when one wing piece 9b of the mounting member 9 is fixedly installed on the bottom surface 13 of the bathtub 12, the spring 11 provided in the mounting plate 9 causes the spring 11 to move through the action plate 3. The presser plate 2 is pressed, and the outer peripheral edge 6 of the presser plate 2 closely presses and adheres the outer peripheral edge 7 of the lid body 1 to the outer peripheral portion of the drain port 14, that is, the bottom surface 13 of the drain port 14 of the bathtub 12, and drains water. The mouth 14 is covered and sealed closed. Outer peripheral edge 7 of the lid main body 1
has a tongue-shaped cross section and has good adhesion, so even if the spring 11 is lightly pressed with the outer edge 6 of the presser plate 2, the outer edge 7 of the lid body 1 can be brought into close contact with the bottom surface 13 of the bathtub 12. can be done.

Next, when draining water, when the drawstring 15 is pulled up, the tip of the action plate 3 is lifted up using the pivot 10 of the mounting member 9 as a supporting shaft, and accordingly, the stopper body 1 is removed as shown in FIG. It is separated from a part of point a, and as the action plate 3 rotates, it is gradually moved away and the entire bottle is opened. Therefore, the lid main body 1 can be opened with a small force that only partially opens it first.

By turning the handle 22 of the opening/closing handle 16, the drawstring 15 connected to the hook 23 is wound around the cylindrical portion 19, and the drawstring 15 is pulled up. In this state, handle 2
Even if you let go of the handle 22, the spring force of the coil spring 21 prevents the handle 22 from freely rotating, so the drawstring 15 remains pulled up until the water in the bathtub is completely drained. , the lid main body 1 can maintain an open state.

Further, since the handle 16 is installed at the upper position of the bathtub 12, the stopper body 1 can be opened without getting the hands wet.

[Effects of the invention] Therefore, the present invention securely installs the lid on the bottom of the bathtub using the mounting member, and uses the spring force and presser plate provided in the mounting member to elastically tightly fit the lid body around the drain opening of the bathtub to cover it. We provide a drain cap with a structure that closes, and when the drain cap is opened, when the drawstring is pulled up, the main body of the drain partially opens while the entire body is opened, which affects water pressure and the angle of the drawstring. It has the advantage that it can be opened with a small force without being cut, and therefore there is no need to worry about breaking the drawstring.

[Brief explanation of the drawing]

The figures relate to the present invention: Figure 1 is an overall perspective view of the drain cap, Figure 2 is a vertical front view thereof, Figure 3 is a sectional view showing it installed in a bathtub, and Figure 4 is an opening/closing handle. FIG. 1...Lid body, 2...Press plate, 3...Action plate,
9... Mounting member, 11... Torsion coil spring, 1
5... Drawstring.

Claims (1)

[Scope of utility model registration request] a flexible lid body formed in the shape of an inverted bowl; a presser plate formed in the shape of an inverted bowl with a smaller diameter than the lid body and fixedly installed concentrically on the upper surface of the lid body; and the presser plate. an action plate installed integrally on the top surface; a mounting member formed to be foldable in two and installed at one end of the action plate; and the mounting member such that the action plate applies a pressing force to the lid main body. A drain lid plug for a bathtub comprising a spring provided at the top and a drawstring provided at the other end of the action plate.