JPS5931816Y2 - flush toilet - Google Patents

Description

[Detailed description of the invention] When flushing the toilet, the siphon type flush toilet causes a siphon effect in the curved trap drainage channel that communicates the bowl part of the toilet body with the discharge port, and siphons the sewage and filth inside the bowl part. This is a flush toilet that drains water completely outside the toilet bowl by supplying flush water all at once into the bowl, causing a flow from the bowl to the outlet as the water level rises inside the bowl, and making use of this flow. Compared to flushing type flush toilets, which drain the waste water and waste inside the bowl outside of the bowl, it has the advantages of being quieter before flushing and having a larger area for water retention inside the bowl. There was a drawback that a large amount of washing water was required to cause a siphon effect in the passageway and to maintain this effect for about 10 seconds.

The present invention aims to eliminate the above-mentioned drawbacks and provide a flush toilet bowl that maintains the siphon action for a long time even with a small amount of flushing water and completely drains the sewage and filth inside the bowl.

Examples will be described below based on the drawings.

Reference numeral 1 denotes a ball part, and a rim passageway 3 is formed on the upper peripheral edge of the ball part with water injection holes 2 opening downward at appropriate intervals for cleaning the inner wall surface of the ball part, and a bent trap drainage passageway communicating with a discharge port 4 is formed at the lower part. 5 entrances and 6 have been opened.

Reference numeral 7 denotes a water supply chamber, which has a water supply port 8 for washing water from a washing water supply device (not shown) opened on the top surface, and a communication port 9 for supplying washing water to the rim passageway 3 on the side surface.

Also, a partition wall 10.1 extends downward from a part of the lower surface and side surface of the water supply chamber 7 to partition the ball portion 1 and the trap drainage channel 5.
0' and provide a wash water passage, and at the bottom of the partition wall 10 on the side of the trap drainage channel, slit-shaped water injection grooves 11 with a spacing of approximately 1 mm are provided on the entire wall surface of the drainage channel, approximately at right angles to the drainage direction, near the drainage channel entrance 6. do.

Reference numeral 12 denotes a spout hole, which is connected to the partition wall 1 in the same way as the slit-shaped water injection groove 11.
It is opened at a position slightly closer to the drainage direction than the slit-shaped water injection groove 11 toward the drainage direction.

The trap drainage channel 5 is bent into a substantially C-shape, and has a convex portion 12 in the middle.
is provided to seal off the ball portion 1 and the discharge port 4 with water.

Since the present invention is constructed as described above, a part of the cleaning water supplied to the water supply chamber 7 when flushing the toilet bowl flows into the rim passageway 3 through the communication port 9 and is discharged from the water injection hole 2 to the ball portion 1. The inner wall surface of the ball part 1 is cleaned, and other cleaning water is discharged into the trap drainage channel 5 from the slit-shaped water injection groove 11 or the jet hole 12, and the interior of the trap drainage channel 5 is cleaned by the cleaning water discharged from the jet hole 12. The water instantly becomes full and a siphon action occurs between the ball part 1 and the drain port 4, and the ball part 1
The convex portion 12 sucks the sewage and filth inside the trap into the trap drainage channel 5.
It can be discharged from the drain port 4 to the outside of the toilet bowl.

The siphon type toilet uses a siphon action to discharge the waste water and waste inside the bowl outside the toilet, so it is quiet before flushing, has a wide water retention area in the bowl, and can have a deep water seal, making it an extremely hygienic flushing toilet. However, conventional siphon-type toilets have the disadvantage that they require a larger amount of flushing water than flush-type toilets.

In other words, the sewage and filth in the ball are discharged by the siphon action, and when the water level in the ball drops below the upper edge of the trap drainage channel entrance, air enters the trap drainage channel, and the siphon action is interrupted, causing some of the sewage in the ball to be discharged. To avoid this, conventional siphon toilets allow cleaning water to flow into the bowl even after sewage and filth has been discharged to prevent the water level in the bowl from dropping below the upper edge of the trap drain entrance, allowing the siphon action to last for several seconds. Therefore, compared to flush type toilets, approximately 51 times more flushing water was required.

However, the toilet of the present invention has slit-shaped water injection grooves with a spacing of approximately 1 mm on the inner wall of the drainage channel near the entrance of the trap drainage channel, so that the drainage channel is separated from the ball part by a water film when flushing the toilet, so that the drainage channel can be easily cleaned. Even if the water level inside the ball part drops below the upper edge of the trap drainage channel entrance due to the siphon action, the sewage and filth in the ball part are discharged, the trap drainage channel remains closed due to the water film formed by the wash water sprayed from the slit-shaped water injection groove. No air enters the bowl, and the siphon action is not interrupted, allowing the sewage and dirt inside the bowl to be completely discharged. Unlike conventional siphon toilets, extra flushing water is not required, and the amount of flushing water is saved. This has great practical value.

[Brief explanation of drawings]

Fig. 1 is a central vertical cross-sectional view showing an embodiment of the flush toilet of the present invention, and Fig. 2 is an enlarged cross-sectional view of the A-A section, in which 1 is a ball portion, 5 is a trap drainage channel, and 11 is a slit-shaped toilet. It is a water injection ditch.

Claims (1)

[Scope of utility model registration request] A siphon-type flushing toilet characterized in that a slit-shaped water injection groove with a gap of several millimeters is provided near the trap drainage channel entrance of the toilet body, so that the drainage channel is isolated from the ball part by a water film when flushing the flushing toilet. toilet bowl.