JPH10121553A - Bubble-flushing toilet seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce engulfing sound of air and colliding sound of flushing water by mixing air bubbles with the flushing water. SOLUTION: An air bubble generator 2 and a water level sensor 8 are installed in a flushing water tank for a toilet. A sensor to detect a human body is installed in a toilet room or at the toilet seat side and the air bubble generator 2 is driven or stopped by the sensor. The air bubble generator 2 sucking air bubbles by the stream power of the flushing water and mixing them with the flushing water is installed at some part of the way to supply the flushing water to the toilet seat body 1 side. The supply source of the flushing water may be a city water line or a flushing water tank 3 for the toilet seat.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the generation of bubbles mixed in washing water for washing a toilet, and the sound of air entrainment and the washing water colliding with a wall surface of a flow path in the toilet. The present invention relates to a foam flush toilet which reduces collision noise.

[0002]

2. Description of the Related Art Generally, flush systems and flush valve systems are available for flushing toilets. In the flush valve method, a flush valve is provided in the middle of a pipe connected to the supply side of tap water, and by operating this flush valve, flush water is supplied to the toilet using the tap water pressure and washed. It is. In the float valve system, a toilet flushing tank is mounted on the upper surface of the rear of the toilet body, etc., the flush water is temporarily stored in this tank, and the float valve provided in the tank is operated. In this method, flush water is supplied to the toilet using the water pressure of the toilet.

[0003]

However, in any of the flushing methods, when the flush water is discharged from the rim small hole of the rim water passage of the toilet body into the toilet bowl, air is entrained,
It was generating the entrapped noise of air. Further, when the washing water in the toilet bowl flows to the defecation passage including the trap portion, air may be entrained, and the air entrainment noise is also generated.

On the other hand, when the washing water flows through the flow passage in the toilet body, it collides with a wall surface of each flow passage at a portion where the flowing direction changes, and generates a collision sound.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been improved and eliminated in view of the above-mentioned problems, and the sound of air entrainment and the collision of cleaning water are introduced by mixing foam into the cleaning water. It is an object of the present invention to provide a foam flush toilet that can reduce the amount of foam.

According to the first aspect of the present invention, there is provided a foam generator for generating foam and a water level sensor in a toilet flushing tank.
A foam cleaning toilet characterized in that a human body detection sensor is installed in a toilet room or on a toilet side, the foam generator is driven by the human body detection sensor, and the foam generator is stopped by a water level sensor.

The means of claim 2 adopted by the present invention is as follows.
The foam generator is provided in the middle of a circulation path that circulates the wash water in the toilet flush tank, and circulates the wash water in the toilet flush tank with a pump. The foam cleaning toilet according to claim 1, wherein the foam is washed and mixed into the cleaning water.

[0008] Further, the means of claim 3 employed in the present invention is a method of sucking air bubbles by the force of the washing water and mixing it into the washing water in the middle of the supply path for supplying the washing water to the toilet. It is a foam washing toilet characterized by having a generator installed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. 1 and 2 relate to the first embodiment of the present invention, and FIG. 1 is a longitudinal sectional view showing the entire toilet body 1. FIG. 2 is a longitudinal sectional view of the foam generator 2.

As shown in FIG. 1, in this embodiment, a toilet flushing tank 3 is installed on the rear upper surface of the toilet body 1, and a float valve 4 provided in the tank is operated.
The washing water stored in the tank is supplied to the toilet body 1 side,
This is a float valve cleaning method for cleaning. The toilet washing tank 3 is provided with a circulation path 5 for circulating the washing water stored in the tank, and a pump 6 is provided in the middle of the circulation path 5. A water level sensor 8 is installed at a position near the inlet 7 side of the circulation path 5, and a foam generator 2 is installed at a position at the outlet 9.

The foam generator 2 is as shown in the vertical sectional view of FIG. That is, the foam generator 2 has the throttle portion 10 formed on the inflow side, and the air suction port 11 is formed in the side wall surface immediately after exiting the throttle portion 10. The suction port 1
1 communicates with the atmosphere through a ventilation pipe 12, and an upper end opening of the overflow pipe 1 is provided in the tank 3.
It is set higher than 3. This is to prevent the washing water stored in the tank 3 from flowing backward through the ventilation pipe 12. Further, on the outflow side, an injection port 14 having a narrow flow path is formed in order to strengthen the water force of the cleaning water containing air bubbles.

Next, the operation of the foam cleaning toilet constructed as described above will be described. First, the pump 6 is driven by a human body detection signal from a human body detection sensor provided at an entrance or a wall surface of a toilet room or a seating sensor for detecting that a user is seated on a toilet seat by a change in load. As a result, the washing water stored in the toilet washing tank 3 is sucked into the circulation path 5 from the inflow port 7, discharged through the pump 6 and the foam generator 2 into the tank, and circulated.

In the foam generator 2, the flow rate of the circulating washing water is increased by passing through the throttle unit 10, and a negative pressure is generated at the air suction port 11. Therefore, air is sucked into the foam generator 2 through the ventilation pipe 12 and is mixed into the circulating washing water. Then, the sucked air becomes a fine bubble state and is discharged into the toilet flushing tank 3 together with the flushing water.

Thereafter, it is assumed that the toilet user starts the operation of cleaning the toilet body 1 from such a state. In the washing water stored in the toilet washing tank 3, the foam generator 2
Many air bubbles are mixed. Therefore, the washing water supplied from the tank 3 to the toilet body 1 also contains a large number of air bubbles, and the toilet body 1 is washed by so-called foam water. Even when the foamed washing water is discharged from the rim small hole 16 of the rim water passage 15,
Since a large number of air bubbles have already been mixed in, no new air is entrapped, and no noise is generated by the entrapped air.

Further, in the flow path of the flush water of the toilet main body 1, for example, even in the trap portion of the defecation passage 17 which is formed with a largely bent flowing direction, many bubbles are mixed in the flush water. Therefore, when the foamed washing water collides with the wall surface of the trap portion, the impact is mitigated by the large number of bubbles, and no loud collision sound is generated. In other words, a large number of air bubbles function as an air cushion, so that quiet cleaning is possible.

Furthermore, when the cleaning operation is about to be completed,
The water seal in the toilet bowl 18 is broken, and air enters from the defecation outlet 19 to terminate the siphon action. Conventionally, however, a large entrainment sound was generated when the air was mixed. However, in the foam cleaning toilet according to the present invention, even if air is drawn in from the defecation outlet 19,
The inflowing air can reduce a number of bubbles contained in the washing water to reduce the entrainment noise, and no loud noise is generated.

By the way, after the flushing of the toilet is started, when the level of the washing water stored in the toilet flushing tank 3 drops and reaches the position of the water level sensor 8, the bubble generator 2 detects this. 8 detects it and stops driving the pump 6. This is because a large number of bubbles are contained in the washing water in the toilet bowl washing tank 3 for a while even after the pump 6 is stopped. This is because an effect of reducing noise related to the toilet flushing can be obtained.

When the water level in the toilet flushing tank 3 drops to a predetermined level, the float valve 4 is seated, and fresh flushing water is stored in the tank by supplying water from a ball tap (not shown). The above is one cycle associated with toilet flushing. Thereafter, the above-described operation is repeated, and the toilet is quietly cleaned with the foamed cleaning water.

FIG. 3 is a longitudinal sectional view of a foam cleaning toilet according to a second embodiment of the present invention. As shown in the figure, in this embodiment, a flush water outlet 2 of a toilet bowl washing tank 3 is provided.
0 and the flush water inlet 21 of the toilet body 1
And the above-described bubble generator 2 is attached to the flush water inlet 21 side of the toilet body 1. Other configurations are the same as those shown in FIG. Therefore, in this embodiment,
When the toilet flushing is started by pulling up the float valve 4, the flush water in the toilet flushing tank 3 is discharged from the connection pipe 2.
The air is supplied to the toilet body 1 via the air bubble generator 2 and the bubble generator 2.
Here, the cleaning water passes through the bubble generator 2, whereby air is sucked from the ventilation pipe 12 and mixed therein. Therefore, the washing water supplied to the toilet main body 1 becomes foamy, and the same operation and effect as those of the first embodiment can be obtained.

The present invention is not limited to the above-described embodiment. For example, the flush toilet tank 3 shown in FIG. 3 may be a flush valve. That is, a flush valve cleaning system in which the connection pipe 22 is connected to a supply source of tap water through a flush valve may be used.

In the embodiment shown in FIG. 1, the operation of the pump 6 is started by turning an operation handle provided on the side surface of the tank 3 for flushing the toilet bowl. It is also possible to use a timer to stop the drive of the pump 6 after a lapse of a predetermined time from the turning operation of the operation handle. Further, the toilet shown in the drawings shows a Western-style toilet, but it is also applicable to a Japanese-style toilet or a urinal.

[0022]

As described above, in the present invention,
Because the toilet flush water contains bubbles to form a foam and is washed, the flush water can flow out smoothly without entrapping air when passing through the rim passage small holes. No entangling noise is generated.

Immediately before the end of toilet flushing, the siphon action ends and air flows in from the toilet bowl to the defecation passage. However, since the washing water is foamy, the inflowing air is included in the washing water. The entrapment noise can be reduced by destroying a large number of bubbles, and no loud noise is generated.

Further, conventionally, the washing water collides with the flow path wall of each part of the toilet bowl to generate a large noise. However, since the cleaning water is foamy, the impact of the washing water when colliding with the flow path wall is generated. Many of the air bubbles contained therein act so as to be relaxed, and no loud noise is generated.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a foam cleaning toilet according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a foam generator according to the present invention.

FIG. 3 is a vertical sectional view of a foam cleaning toilet according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Toilet main body 2 ... Foam generator 3 ... Toilet washing tank 4 ... Float valve 5 ... Circulation path 6 ... Pump 8 ... Water level sensor 12 ... Vent pipe

Claims (3)

[Claims] 1. A foam generator for generating foam and a water level sensor are installed in a toilet washing tank, and a human body detection sensor is installed in a toilet room or a toilet, and the foam generator is driven by the human body detection sensor. A foam flush toilet characterized in that the foam generator is stopped by a water level sensor. The foam generator is provided in the middle of a circulation path for circulating the washing water in the toilet bowl washing tank. The cleaning water is circulated by a pump to circulate the washing water in the toilet bowl washing tank. 2. The foam washing toilet according to claim 1, wherein bubbles are sucked by the water force and mixed into the washing water. 3. A foam cleaning device, characterized in that a foam generator is provided in the supply passage for supplying the washing water to the toilet bowl, wherein a foam generator is provided for sucking bubbles by the water force of the washing water and mixing the bubbles into the washing water. Toilet bowl.