JPS6022927B2 - plug - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plug that can be applied to a drain plug installed in a bathtub, for example, and its purpose is to close the water outlet when opening the plug against water pressure, regardless of whether the purpose is drainage or water supply. The aim is to provide a stopper that can be opened by reducing the force without reducing the amount of water flowing through the water, and its structure is such that a shaft with a smaller diameter than the diameter of the water hole is attached to the water hole of the ring that blocks the water hole. Please insert the
A stop piece with a diameter larger than the diameter of the water hole is provided at the lower end of the shaft, and a stop piece is provided at the upper end to close the water hole from the top side of the ring when the stop piece comes into contact with the bottom surface of the ring. It is unique in that it is equipped with a water stop valve.

For example, the amount of water drained from a bathtub is proportional to the diameter of the water drain.

Therefore, in order to increase the amount of water discharged, the solution is to make the drain port larger, but the plug that blocks this drain port also becomes larger accordingly. The larger the stopper is, the more water pressure is applied to the stopper when the stopper is opened, so it takes more force to raise the stopper. chain for raising the stopper,
The reason why strings and the like sometimes break is because this force is too great. The present invention has been made to eliminate such inconveniences.

Hereinafter, explanation will be given along with the drawings of the embodiment. FIG. 1 is a sectional view of a main part showing the state of a plug blocking a drain in a bathtub.

In the figure, reference numeral 1 denotes the bottom wall of the bathtub, and a base 3 is attached to a through hole 2 in the bottom wall 1. The upper end of the inner peripheral surface of the cap 3 is cut into a taper 3a to form a drain port 4. 5 is a ring that closes this drain port 4.

A shaft 7 having a diameter smaller than that of the water passage hole 6 is inserted into the water passage hole 6 of the ring 5, and its upper and lower ends protrude from the upper and lower surfaces of the ring 5, respectively. A stopper piece 8 having a diameter larger than the diameter of the water passage hole 6 is provided at the lower end of the shaft 7. The planar shape of the stopper piece 8 may be circular or rectangular and is not particularly limited. and axis 7
A water shutoff valve 9 is provided at the upper end to close the water passage hole 6 from the upper surface side of the ring 5 so that the water passage hole 6 is not blocked when the stopper piece 8 comes into contact with the lower surface of the ring 5. ing. This shaft is connected to a chain 10 extending upward. When the chain 10 is pulled up, the water stop valve 9 that has been blocking the water passage hole 6 is raised, as shown in FIG. 2, and water is drained from the water passage hole 6. In this case, when comparing the water pressure applied to the ring 5 and the water pressure applied to the water stop valve 9, the planar area of the water stop valve 9 is smaller than that of the ring 5, so the force required to start draining is small. Next, when drainage starts, the pressure difference applied to the upper and lower surfaces of the IJ ring 5 decreases.

When the chain 10 is further raised, the stopper piece 8 comes into contact with the lower surface of the IJ ring 5, as shown in FIG.
It is possible to secure the specified amount of drainage. In this case, the force required to disengage the ring 5 from the drain 4 is reduced due to the reduction in the pressure difference. As described above, the present invention is capable of releasing the cypress against the water pressure by reducing the force without reducing the amount of water flowing through the water opening, as described in connection with the drain plug of the bathtub.

[Brief explanation of the drawing]

1 to 3 relate to one embodiment of the present invention, in which FIG. 1 is a cross-sectional view of the stopper in a water-stop state, FIG. 2 is a cross-sectional view of the stopper in a state where drainage has started, and FIG. FIG. 2 is a sectional view of the plug in a state where a predetermined amount of drainage is ensured. 5...Drain port, 6...Water hole, 7...Shaft, 8...Stop piece, 9...Water stop valve. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A shaft with a smaller diameter than the diameter of the water passage hole is inserted into the water passage hole of the ring that closes the water passage hole, and a stop piece with a diameter larger than the diameter of the water passage hole is provided at the lower end of the shaft, and a stop piece is provided at the upper end of the shaft. The plug is provided with a water stop valve that does not close the water passage hole from the top side of the ring when the stopper piece comes into contact with the bottom surface of the ring.