JPH0313384B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel siphon vortex toilet bowl that exhibits powerful cleaning ability and can save water when flushing the toilet bowl.

Conventionally, the drainage structure of toilet bowls involves creating a siphon effect in the drain pipe that connects to the outlet in the toilet bowl.
There are toilet bowls that wash away dirt as if sucking it out. Among these, a siphon-vortex toilet 1 is known, as shown in FIG. 1, in which a low-volume low tank 2 is integrally formed at the rear of the toilet main body. In the siphon-vortex toilet bowl 1, since the low tank 2 is formed to have a low volume, sufficient water pressure cannot be obtained to clean the toilet bowl using the same drainage method as in a conventional ordinary toilet bowl. Therefore, in the siphon-vortex toilet bowl 1, by turning the toilet bowl washing water into a vortex, a siphon effect is generated at the center of the vortex.

FIG. 2 shows a plan view of the siphon-vortex toilet bowl 1 as described above, with the toilet seat 3, toilet lid 4 and low tank 2 shown in FIG. 1 omitted. In addition, 13 in the figure is a discharge pipe. Siphon・
In the vortex toilet bowl 1, a toilet bowl flushing water spout 7 is provided on an inclined surface 6 formed so as to surround a discharge port 5 in the toilet bowl in the circumferential direction thereof. The spout 7 is connected to the low tank 2 (see FIG. 1) through a conduit 11, and is configured to spout cleaning water. Further, the inclined surface around the spout 7 is provided with a spiral step surface 6a that rotates half a turn around the inner surface of the toilet bowl. In other words, the toilet bowl washing water from the spout 7 is transferred to the rotating step surface 6a.
, it becomes a vortex that appears to circulate in one direction around the inner surface of the toilet bowl. However, since the outer flow of the vortex tends to spread outward due to centrifugal force, paper and dirt floating on the water surface tend to move away from the discharge port 5, making complete discharge difficult. Of course, like other conventional toilet bowls, water also flows out from the annular rim passageway 8 provided on the upper periphery of the toilet bowl, but this outflow from the rim passageway 8 weakens the force of the vortex flow, This did not result in a strong siphon effect. For this reason,
The conventional siphon-vortex toilet bowl 1 required a water volume and jetting power that far exceeded that of a normal toilet bowl, but as mentioned above, the low tank 2
Since the low tank 2 is formed integrally with the toilet bowl body, there is a limit to increasing the capacity of the low tank 2, and this is not an easy problem to solve.

The present invention has been made in view of the above circumstances, and even if it is a siphon-vortex toilet equipped with a low-volume low tank, it can exhibit strong cleaning ability and save water for flushing the toilet bowl. It is an object of the present invention to provide a novel siphon vortex toilet bowl (hereinafter referred to as the toilet bowl of the present invention) that can perform the following functions.

The gist of the toilet bowl of the present invention is that in a siphon vortex toilet bowl that swirls the flushing water flowing into the toilet bowl to induce a siphon effect, the toilet bowl has a downwardly curved slope that concentrates it toward the outlet at the bottom of the bowl. On both sides of the surface across the discharge port, rotating step surfaces that stand up in an inwardly curved manner along the inner circumference of the toilet bowl are formed facing each other, and one turning step surface is provided with a vortex flow. A spout is disposed, and a vortex-enhancing spout is disposed on the other swirl step surface, and a vortex-strengthening spout is disposed on the swirl-step surface where the vortex-strengthening spout is provided. The point is that a gushing water intake wall is formed that bends at an angle.

The present invention will be described below based on drawings showing embodiments thereof.

FIG. 3 shows the toilet bowl of the present invention, and is a partially omitted plan view drawn for easy comparison with FIG. 2. As shown in the figure, the toilet bowl of the present invention is provided with a conduit 11 that spirals inside the toilet bowl body, and branches out from the middle of the conduit 11 and opens at the inclined surface 6 around the outlet 5. A vortex-enhancing spout 9 is provided, and a vortex-enhancing spout 10 at the tip of the guide path 11 is provided facing the discharge port 5.

FIG. 4 is a developed perspective view of the toilet bowl of the present invention in FIG. 3 cut into two parts along the line of arrangement of the discharge pipe 13, as seen from the rear side; , B is a cross-sectional perspective view showing the half body having the swirl-enhancing jet nozzle 10, and FIG.

In FIG. 4B, the inclined surface 6 near the discharge port 5 has a turning step surface 6a along the periphery of the opening.
is formed. The vortex jet outlet 9 is formed as an opening in the center of the swirl step surface 6a, and the opening shape is elliptical, like a hollow pipe cut diagonally. In other words, the vortex jet outlet 9
The water blown out from the toilet bowl circulates in one direction on the inner surface of the toilet bowl along the turning step surface 6a.

In FIG. 4A, the swirl-enhancing spout 10 is provided at the discharge port 5, and the swirl-strengthening spout 9 is provided at the discharge port 5.
Similarly, the turning step surface 6b formed on the inclined surface 6
An opening is formed in the center. A jet water drawing wall 12 is formed in the front part of the vortex-strengthening spout 10, which is bent at a steep angle from the swirl step surface 6b and directed toward the discharge port 5 at the bottom of the toilet bowl. . Therefore, the water blown out from the vortex-strengthening spout 10 immediately collides with the blown water intake wall 12, turns sharply, and flows into the discharge port 5 all at once. In other words, the water blown out from the vortex-strengthening outlet 10 has the effect of sucking the vortex center of the vortex generated by the vortex outlet 9 toward the discharge direction of the outlet 5.

In addition, in FIGS. 4A and 4B, the rim water passage 8 of the toilet bowl of the present invention has a plurality of outflow holes 8a,
8a, . . . are bored. Therefore, the outflow opening area of the rim passageway is narrowed compared to the conventional one, and the outflow force from the outflow hole 8a is enhanced.

The toilet bowl of the present invention constructed as described above performs its evacuation function as follows. Note that the vicinity of the x mark on the inclined surface 6 shown in FIG. 3 indicates the part where defecation falls.

In Figure 3, when a normal cleaning operation is performed after defecation (for example, by rotating the cleaning handle provided on the low tank), the water in the low tank flows through a float valve (not shown), etc. It flows from the inlet 14 to the conduit 11. The water is ejected into the toilet bowl from the whirlpool spout 9 and turns into a whirlpool inside the toilet bowl along the swirl step surface 6a. Almost at the same time as the water is ejected from the vortex jet port 9 as described above, water is also ejected from the vortex reinforcing jet port 10 opened at the tip of the guide path 11. The water ejected from the vortex-strengthening spout 10 flows along the swirl step surface 6b, collides with the ejected water intake wall 12, and flows down into the discharge port 5. Therefore, the water that is about to circulate in the toilet bowl by the vortex spout 9 is strongly drawn into the discharge port 5 almost at the same time as the water is ejected, and a vortex center can be easily created. Therefore, the vortex created in this manner also draws in water from the rim passageway 8 on the upper peripheral surface of the toilet bowl, exerting a strong siphon effect.

Note that water from the rim passageway 8 as described above is not an essential requirement, and almost the same effect was obtained even if the water was stopped. However, in consideration of the case where feces adhere to the upper periphery of the inner surface of the toilet bowl due to, for example, diarrhea, it is preferable to drain the water from the rim passageway 8 as well. In addition, it does not matter whether the toilet is Western or Japanese, as long as the feces fall part is provided on the inclined surface 6 formed so as to surround the discharge port 5 in the toilet bowl. Further, the mutual positional relationship between the swirl spout 9 and the whirlpool reinforced spout 10, the number of ports, etc. of each are not limited at all. They may be provided separately in each of the reinforcing jet ports 10. As described above, the detailed configuration and shape of the present invention can be changed as appropriate depending on the embodiment.

As is clear from the above description, according to the siphon vortex toilet according to the present invention, the cleaning capacity was enhanced and the amount of water used for flushing the toilet bowl could be reduced. Here, the present inventors tested the cleaning ability for floating matter in the toilet bowl. The test procedure is
Fifty plastic balls with a diameter of 19 mm and a specific gravity of 0.95 were suspended in each toilet bowl of the conventional siphon-vortex toilet bowl and the toilet bowl of the present invention, and the number of plastic balls remaining in the toilet bowl after washing was calculated. It is something to investigate. As a result, with the conventional toilet, 4 to 7 plastic balls remained after cleaning, but with the toilet of the present invention, the test was repeated multiple times, and during this period, not even one plastic ball remained. There was no residue left. In addition, when comparing the amount of water used for flushing the toilet bowl at that time, the conventional toilet required a minimum of 16 to 20 liters, whereas the toilet bowl of the present invention required a minimum of 13 to 15 liters. .
Therefore, it goes without saying that the time required for cleaning can be reduced. Furthermore, when ten toilet bowls of the present invention were subjected to a toilet bowl cleaning test specified in JIS A5207, good results were obtained in which all of them passed with a sufficient margin. As described above, the toilet bowl of the present invention has a much stronger cleaning ability than not only the conventional siphon-vortex toilet bowl but also other flush toilet bowls. Moreover, in order to strengthen its cleaning ability, there is no need to modify the water storage capacity of the low tank to a large capacity, and because the amount of water used can be reduced, it is even possible to make it even smaller than before. Summer. Therefore, the overall size of the toilet can be reduced, reducing transportation, manufacturing costs, prices, installation work, and
It has many other advantages as well.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing a conventional siphon-vortex toilet, Fig. 2 is a plan view with Fig. 1 partially omitted, and Figs. 3 and 4 show the toilet of the present invention. 3 is a partially omitted plan view drawn for ease of comparison with FIG. 2, and FIG. 4 is a partially omitted plan view of the toilet bowl of the present invention in FIG. This figure shows a developed perspective view as seen from the side, where A is a cross-sectional perspective view of the half body with the vortex-enhancing jet nozzle, and B is a cross-sectional view of the half body with the vortex jet nozzle. FIG. 5... Discharge port, 6... Inclined surface, 9... Eddy current spout, 10... Eddy current reinforced spout.

Claims (1)

[Claims] 1. In a siphon vortex toilet that swirls the flushing water flowing into the toilet bowl to induce a siphon effect, the flush water that flows into the toilet bowl is swirled to induce a siphon effect. On both sides, swirling step surfaces that stand up in an inwardly curved manner along the inner periphery of the toilet bowl are formed to face each other, and on one of the swirling step surfaces, a whirlpool spout is arranged,
A vortex-strengthening spout is arranged on the other swirl step surface, and a jet water drawing wall that bends at a steep angle toward the outlet at the bottom of the toilet bowl is provided on the swirl step surface where the vortex-strengthening spout is provided. A siphon vortex toilet bowl characterized by being formed with.