JPS603178Y2 - drainage device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drainage device such as a sink, and prevents forgetting to install an odor-proof crown that constitutes a drain trap, and also eliminates the emission of bad odors when cleaning the odor-proof crown.

Generally, a drainage device such as a sink is provided with an odor-proof crown to prevent bad odors from sewage, and this odor-proof crown forms a drain trap to obtain an odor-proofing effect.

However, there is a risk that the deodorizing crown is removed when cleaning the inside of the drainage device and then forgotten and used, resulting in a problem that no deodorizing effect can be expected.

Another drawback was that a bad odor was emitted while the odor-proof crown was removed for cleaning.

The present invention solves these conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a drainage tube with an upper opening at the bottom of the water tank 2, and a step 3 in the circumferential direction is formed on the peripheral wall slightly below the middle tube.

Reference numeral 4 denotes a drain pipe that penetrates the center of the bottom wall of the drain pipe 1 and has an open upper end protruding into the drain pipe 1; 5 indicates a circumferential groove formed slightly below the upper end of the drain pipe 4; 6
1 shows a substantially cap-shaped opening/closing body rotatably slidably in contact with the upper inner periphery of the drain pipe 4, and ribs 7 formed along the outer periphery.
By engaging with the groove 5, removal can be prevented.

Openings 8 and 9 are formed in the peripheral walls of the drain pipe 5 and the opening/closing body 6, respectively, and when the opening/closing body 6 is rotated to face them, a water inlet 10 is set as shown in FIG. In the non-opposed state, the water passage port 10 is eliminated.

Reference numeral 11 denotes a protruding piece projecting outward from the top wall of the opening/closing body 6, and 12 a stopper piece, which is adapted to come into contact with one of the side edges of the opening 8 when the openings 8 and 9 are in opposing or non-opposing states. be.

Reference numeral 13 denotes a deodorizing crown installed in the drain pipe 1, which is positioned overlapping the upper outer periphery of the drain pipe 4 at a constant interval to form a drain trap.

Further, the deodorizing crown 13 has a flange 15 in which a large number of water holes 14 are formed, and the outer peripheral edge of the flange 15 is placed on the step portion 3.

Reference numeral 16 denotes a projection provided slightly above the step portion 3, and reference numeral 17 represents a locking projection formed above the flange 15 in correspondence with the projection 16, the upper surface of which is inclined in the circumferential direction.

18 indicates a notch. To install the deodorizing crown 13, first install the protrusion 16.
The outer periphery of the flange 15 is placed on the stepped portion 3 with the notches 18 corresponding to each other, and then rotated by a certain angle.

That is, by the above rotation, the inclined upper surface of the locking protrusion 17 is wedged below the protrusion 16, so that the deodorizing crown 14 can be installed reliably without rattling.

Reference numeral 19 designates a pair of protrusions hanging from the deodorizing crown 13, and when the deodorizing crown 13 is set on the stepped portion 3, the notch 20 formed at the lower end of the protruding piece 19 fits into the protruding piece 11 of the opening/closing body 6. That's how it is.

Reference numeral 21 indicates a garbage basket, and 22 indicates an on-off valve thereof.

In the above configuration, normally, the drained water flows in a U-shape at the drain trap section as shown in FIG. 1, and flows out into the drain pipe 4 through the water inlet 10.

Normally, water remains in the drain trap section, and the drain pipe 4
This prevents bad odors from rising from the sewage.

From the above, for cleaning etc., rotate the deodorizing crown 14 and remove the protrusion 1.
6 and the locking protrusion 17, and by aligning the notch 1B of the flange 15 with the protrusion 16, the deodorizing crown 14 can be removed upward.

Since the opening/closing body 6 also rotates in the same direction in response to the rotation of the deodorizing crown 14, the openings 8 and 9 become non-opposing, and the water passage port 10 disappears.

Therefore, in this case, even without the deodorizing crown 13, the opening/closing body 6 blocks out the bad odor.

Furthermore, if you forget to attach the deodorizing crown 13 when reusing the device, the opening/closing body 6 will remain closed, preventing water from draining and overflowing into the drain pipe 1. It is possible to know for sure.

In addition, there are small protrusions 2 on both sides of the lower end of the opening 8 as shown in FIG.
By providing a 3° 24 angle and allowing the stopper piece 12 to ride over this, the opening/closing body 6 can be reliably maintained in the open or closed state.

As described above, according to the present invention, not only does it emit a bad odor even if you forget to put on the deodorizing crown, but even if you remove the deodorant crown for cleaning etc., there is no odor, which is very convenient.

Furthermore, since the opening/closing body is shaped like a cap and is brought into sliding contact with the circumferential surface of the drain pipe, it does not interfere with running water during normal draining operations, allowing smooth draining.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a drainage device showing an embodiment of the present invention;
The figure is a partially cutaway perspective view. 1...Drain pipe, 4...Drain pipe, 6
...Opening/closing body, 8,9...Opening, 13.
...Odor-proof crown.

Claims (1)

[Scope of utility model registration request] A drain pipe with an opening to the water tank at the top and a drain pipe protruding inside connected to the bottom, and a drain pipe located so as to overlap the outer periphery of the upper part of the drain pipe, and which can be attached and removed freely by rotation inside the drain pipe. a cap-shaped opening/closing body that is fitted onto the upper part of the drain pipe, engages with the odor-proof crown, and rotates together with the odor-proof crown; A drainage device in which openings are formed to face each other or not to face each other depending on the rotation of the opening/closing body.