JPH0322377Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Hereinafter, the purpose of devising fields of use, prior art, etc.) The present invention relates to a bathtub drainage device.

Conventional bathtub stoppers simply consist of a rubber stopper fitted into a drain port provided at the bottom of the bathtub, so when draining water, the stopper must be opened by pulling on a link connected to the rubber stopper. Since the water pressure of the water remaining in the bathtub is applied to such a rubber stopper, considerable force is required to pull out the rubber stopper. The present invention opens the drain valve with the slightest force of pressing a button, etc., and automatically closes the drain valve after draining. According to the present invention, the above-mentioned drawbacks of the conventional methods can be solved at once. It is. The details of the figure are as follows.

(Construction and operation of the invention hereinafter) Reference numeral 1 denotes a cylindrical drainage member installed at the bottom of the bathtub, and a drainage port 2 is provided at the bottom of the cylindrical drainage member 1. The drain port 2 is configured to be convex toward the inside of the drain member 1, and the outer periphery of the drain port 2 is configured as a first drain chamber 3. Reference numeral 4 denotes a main valve which is provided with a small chamber 5 and a pilot drain port 6 and is supported by a diaphragm 7, and the main valve 4 is installed above the drain port 2. A covering member 11 is provided on the outside of the main valve 4, and includes a main valve charging chamber 9 in which the main valve 4 moves up and down, and a second drain chamber 10. A first communication hole 13 is provided that communicates the chamber 3 and the bathtub 12. Furthermore, a second communication hole 14 is provided in the upper part of the covering member 11 to communicate between the bathtub 12 and the interior of the covering member 11, and a third communication hole 15 is provided in the small chamber 5 to communicate with the second drainage chamber 10, A fourth communication hole 16 communicating with the bathtub 12 via the second communication hole 14 is provided, and the pilot drain port 6
A pilot valve 18 connected to a remote control wire 17 is provided, the pilot valve 18 is provided with a first closing spring 19, and the main valve 8 is provided with a second closing spring 20.

In this configuration, when draining the remaining water in the bathtub 12, by pushing the knob 23 attached to the building wall 21 etc., the lever 22 acts with the lever support member 8 as a fulcrum, and the remote control wire Pull 17. Remote control wire 17 connects to pilot valve 18
is opened against the first closing spring 19. bathtub 1
The remaining water in the second communication hole 14 and the fourth communication hole 16
Since the inside of the second drainage chamber 10 is filled with water through the third communication hole 15 and the like, the water inside the second drainage chamber 10 is filled with water through the third communication hole 15 and the like when the pilot valve 18 is opened. The water is drained from the drain port 2 via the pilot drain port 6. As a result, the water pressure P ₂ in the second drain chamber 10 becomes lower than the water pressure P ₁ in the first drain chamber 3, and the main valve 4 rises in the main valve charging chamber 9 against the bias of the spring 20. The first drain chamber 3 and the drain port 2 are brought into communication with each other, and the remaining water in the bathtub 12 is drained through the first communication hole 13. When the main valve 4 is raised, the second communication hole 14 is closed by the wall of the small chamber 5, so that no water flows into the second drain chamber 10. When the drainage is completed, the water pressures P ₁ and P ₂ become equal, and the main valve 4 is lowered by the force of the spring 20 and returns to its original position, closing the drain port 2 . After the pilot valve 18 rises to form the above-mentioned differential pressure, it automatically descends under the bias of the spring 19 and returns to its original position.

(Effects of the invention below) As described above, this invention generates a pressure difference just by opening the pilot valve, opens the main valve and drains water, so it does not suffer from the water pressure of the water remaining in the bathtub and is extremely small. It has the great advantage of being able to drain water by force, and also has excellent effects such as being able to close automatically after draining.

[Brief explanation of the drawing]

FIG. 1 is an overall systematic explanatory diagram, and FIG. 2 is an explanatory sectional view showing the operating state. Code, 1... Cylindrical drainage member, 2... Drain port, 3
...First drainage chamber, 4...Main valve, 5...Small chamber, 6...
...Pilot drain port, 7...Diaphragm, 8...
...Lever support member, 9...Main valve charging chamber, 10...
Second drainage chamber, 11...covering member, 12...bathtub,
13...First communication hole, 14...Second communication hole, 15
...Third communication hole, 16...Fourth communication hole, 17...
Remote control wire, 18...Pilot valve, 19...
...First closing spring, 20...Second closing spring, 21...
...building wall, 22...lever, 23...knob.

Claims (1)

[Scope of utility model registration request] A cylindrical drain member is provided at the bottom of the bathtub, a drain port is provided at the bottom of the drain member, the drain port is configured to be convex toward the inside of the drain member, and the outer periphery of the drain port is connected to the first drain. The drain port is provided with a small chamber and a pilot drain port, and is equipped with a main valve that can move up and down by a diaphragm. A covering member having a valve charging chamber and a second drainage chamber is provided, a first communication hole communicating between the first drainage chamber and the bathtub is provided on the outer periphery of the covering member, and a first communication hole is provided in the upper part of the covering member. A second communication hole is provided that communicates between the bathtub and the inside of the covering member, and the small chamber has a third communication hole that communicates with the second drainage chamber and a fourth communication hole that communicates with the bathtub via the second communication hole. A bathtub drainage device, wherein the pilot valve is provided with a pilot valve connected to a remote control wire, the pilot valve is provided with a first closing spring, and the main valve is provided with a second closing spring.