JPH0557080U - Exhaust mechanism of siphon toilet - Google Patents

Abstract

(57) [Summary] [Structure] The exhaust passage 1 is connected to the top of the curved portion 13 of the drainage channel 12 of the siphon toilet 10 or in the vicinity thereof, and the water inlet is provided at the lower end into the low tank 20 mounted at the rear of the toilet 10. 4a, the hollow pipe 4 having the upper end set above the maximum stored water level W is erected, and the end of the exhaust passage 12 is connected to the upper end or the vicinity of the upper end of the hollow pipe 4. As a result, the air is sucked from the drainage channel 12 into the upper space of the hollow tube 4 which is made negative pressure by utilizing the water level drop at the time of cleaning. [Effect] Since the drainage channel is filled with water reliably and promptly after the start of cleaning, the time required to complete the discharge of cleaning water and waste after the siphon effect occurs is shortened. Therefore, the amount of washing water used can be saved and the washing time can be shortened. In addition, the siphon effect also increases, so the cleaning capacity also improves.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 An object of the present invention is to improve the draining function of a siphon toilet and improve the cleaning efficiency.

[0002]

[Prior Art]

 FIG. 3 is a longitudinal sectional view showing the structure of a toilet bowl, which is generally called a siphon toilet bowl 30. In this type of toilet bowl 30, when flush water is supplied to the toilet bowl 31 from a water supply source such as the low tank 35, the water level of the toilet bowl 31 temporarily rises and the drainage channel 32 becomes full, so that the water level rises and falls. A siphon effect based on the difference occurs in the drainage channel 32. By utilizing this siphon effect, the flush water and the waste in the toilet bowl 31 and the drainage channel 32 are sucked out at once from the discharge section 34, and the toilet bowl having the drainage function like the toilet bowl is discharged. Generally called siphon toilet bowl 30.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 3, air is usually stored in the passage from the curved portion 33 to the discharge portion 34 of the drainage channel 32 before the cleaning is started in the siphon toilet 30. When cleaning is started, most of this air is discharged together with the cleaning water from the discharge part 34, but part of it is stopped near the top of the curved part 33 to form an air pool 40 (shown by a dotted line). To do. Immediately after the cleaning is started, the air pool 40 is compressed by the increasing cleaning water and becomes slightly higher in pressure, which becomes an obstacle when the cleaning water flows into the drainage channel 32 and delays the occurrence of the siphon effect. In addition, after the siphon effect occurs, the air reservoir 40 is negatively pressured, which hinders the good flow of the wash water in the drainage channel 32 and the outflow from the discharge portion 34, resulting in a decrease in the discharge force. Sometimes. Due to these factors, conventional siphon toilets have not been sufficiently satisfactory in terms of cleaning efficiency, cleaning time, cleaning water usage, etc., and further improvements are desired.

[0004]

Means for Solving the Problems The present invention is an exhaust mechanism for a siphon toilet, which was devised to solve the above-mentioned conventional problems, and is characterized in that the top of the curved portion in the drainage channel or its An exhaust passage is connected in the vicinity, and a hollow pipe having a water passage at the lower end and an upper end above the maximum stored water level is erected inside a low tank mounted at the rear of the toilet. The end of the exhaust passage is connected to the upper end of the hollow pipe or in the vicinity of the upper end.

[0005]

[Action]

 In the exhaust mechanism of the siphon toilet according to the present invention, the exhaust passage connects the top of the curved portion where air is easily formed in the drainage passage or the vicinity thereof and the upper space of the hollow pipe erected in the low tank. There is. Since the hollow pipe has a water inlet at the lower end and is set so that the upper end is above the maximum stored water level, when the wash water is stored in the rotor tank, Water enters up to a water level equal to the maximum stored water level. If the toilet is washed in this state, the water level in the low tank will drop as the wash water is discharged, and the water level in the hollow pipe will also drop. As the water level drops, the upper space inside the hollow pipe becomes negative pressure, so that air is sucked and removed from the vicinity of the top of the curved portion in the drainage channel communicating with the hollow pipe through the exhaust passage. As a result, the inside of the drainage channel is filled with water reliably and quickly, so that the time required for the siphon effect to occur after the start of cleaning is shortened and the amount of cleaning water used is also reduced. In addition, since no air remains in the drainage channel, the generated siphon effect will be greater than before.

While the siphon effect during cleaning is continued, negative pressure may act on the exhaust passage, but since the end of the exhaust passage communicates with the hollow pipe under negative pressure, the exhaust passage is No air will flow into the drainage channel. After the wash water is discharged, the wash water is replenished into the low tank and the water level rises.At this time, the air above the hollow pipe is released into the atmosphere through the ventilation port provided at the upper end of the hollow pipe. Or discharged through the exhaust passage into the drainage channel, whereby the water level in the hollow pipe returns to the original water level.

[0007]

FIG. 1 shows a siphon toilet 10 having an exhaust mechanism according to the present invention. As shown in the figure, the exhaust passage 1 is connected near the top of a curved portion 13 formed in the drainage passage 12 from the toilet bowl 11 to the discharge portion 14 of the siphon toilet 10. The material of the exhaust passage 1 is appropriately selected and may be flexible or rigid, but it is desired that it has corrosion resistance. The exhaust passage 1 extends from near the top of the curved portion 13 to above the toilet bowl 10, and its end is connected to near the upper end of the hollow pipe 4 in the raw tank 20.

The hollow pipe 4 in the present embodiment is positioned so that the lower end is lower than the minimum stored water level in the low tank 20 and the upper end is higher than the maximum stored water level W. , A water passage 4a is provided at the lower end, and a vent 4b is provided at the upper end. A check valve 2 and a deodorizer 3 for blocking intake from the atmosphere side into the pipe are attached to the vent hole 4b at the upper end.

In the siphon toilet 10 having the exhaust mechanism configured as described above, when washing water is supplied from the low tank 20 into the toilet bowl 11, as the water level in the low tank 20 decreases, Since the water level also drops, a negative pressure space is formed in the upper part of the pipe. Since the upper portion of the hollow pipe 4 and the vicinity of the top of the curved portion 13 in the drainage channel 12 are communicated with each other by the exhaust passage 1, the air near the top of the curved portion 13 is discharged at the same time as the cleaning is started. Is sucked in. Therefore, immediately after the start of cleaning, most of the air in the drainage channel 12 is discharged from the discharge section 14 by the flow of the cleaning water, and a part of the air that tends to stay near the top of the curved section 13 is also discharged. Since it is sucked into the hollow tube 4 through the pipe and is removed, the inside of the drainage channel 12 is surely and quickly filled with water. Therefore, since the time required from the occurrence of the siphon effect in the drainage channel 12 to the completion of the discharge of cleaning water and waste is shorter than before, it is possible to save the amount of cleaning water used. it can. In addition, since the air does not remain in the drainage channel 12, the siphon effect that is generated is also large and excellent, so that the ability to discharge cleaning water and dirt is improved.

The size of the hollow pipe 4 is based on the amount of air that is about to be stored near the top of the curved portion 13 in the drainage channel 12, and the volume of the space inside the pipe formed by lowering the water level during cleaning is Set to be optimal for intake.

In the exhaust mechanism of the present invention, the end of the exhaust passage 1 is maintained at a position sufficiently higher than the toilet bowl 10. Therefore, after the air is exhausted from the drainage channel 12 and the water is filled, Even if dirty water flows into the exhaust passage 12, it does not discharge it into the hollow pipe 4. However, if necessary, a filter (not shown) that is breathable but impermeable to liquids such as water may be provided at the connection end of the exhaust passage 1 to the drainage passage 12 or in the middle thereof. You may make it prevent invasion of dirty water.

Meanwhile, during the continuation of the siphon effect, a negative pressure due to the flow of the wash water discharged acts on the exhaust passage 1 as opposed to immediately after the start of washing. If the end of the exhaust passage 1 is open to the atmosphere, air will flow into the drainage passage 12 again through the exhaust passage 1 and the siphon effect will end prematurely, and the toilet cleaning will remain incomplete. It may end. However, in the present invention, since the end of the exhaust passage 1 communicates with the upper space in the hollow pipe 4 that is under negative pressure, air flows into the drainage channel 12 while the siphon effect continues. There is no danger, and the discharge of cleaning water and waste is sure.

Further, in the embodiment of FIG. 1, the air in the drainage channel 12 sucked into the hollow pipe 4 is discharged from the ventilation port 4b at the upper end of the hollow pipe 4 according to the water level recovery in the raw tank 20. Is configured. Since the drainage channel 12 communicates with a sewer pipe and a septic tank (not shown) through the discharge section 14, the air in the drainage channel 12 contains a bad odor. Therefore, in this embodiment, a deodorizer 3 is attached to the end of the exhaust passage 1 to deodorize the air discharged.

The embodiment of the present invention can be appropriately applied other than the above. For example, although not shown, the vent hole 4b provided at the upper end of the hollow tube 4 can be omitted. In this case, when the water level in the low tank 20 is restored, the air in the hollow pipe 4 is discharged to the drainage passage 12 through the exhaust passage 1. It is also possible to provide an opening / closing valve (not shown) in the middle of the exhaust passage 1 and to operate the user during cleaning of the toilet to control the exhaust in the drainage passage 12. Further, this on-off valve may be of an electromagnetic type, and the opening / closing of the exhaust passage 1 may be electrically controlled to be linked with the cleaning operation. When the on-off valve is provided as described above, the opening time of the exhaust passage 1 after the start of cleaning is determined from the fact that the duration of the siphon effect is almost determined by the structure of the toilet bowl 10. In addition, as shown in FIG. 2, the exhaust passage 1 may be arranged so as to pass through the inside of the overflow pipe 21 and the wash water drainage portion 22 provided in the low tank 20. As described above, the present invention does not prevent appropriate changes depending on the embodiment.

[0015]

[Effect of the device]

 As is clear from the above description, by installing the exhaust mechanism according to the present invention in the siphon toilet, the air near the top of the curved portion in the drainage channel is sucked into the hollow pipe in the raw tank through the exhaust channel during cleaning. Can be removed. Therefore, it is possible to reliably and quickly fill the drainage channel with water after the start of cleaning, and the time required for the drainage of cleaning water and waste to be completed after the siphon effect has occurred. It gets shorter. In addition, the siphon effect itself will be greater than before. Therefore, the cleaning time is shortened, the amount of cleaning water used is saved, and the cleaning capacity is improved.

[Brief description of drawings]

1 is a longitudinal sectional view of a siphon toilet provided with an exhaust mechanism according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a siphon toilet provided with an exhaust mechanism according to another aspect of the present invention.

FIG. 3 is a vertical sectional view of a conventional siphon toilet.

[Explanation of Codes] 1 ... Exhaust passage 2 ... Check valve 3 ... Deodorizer 4 ... Hollow tube 4a ... Water inlet 4b ... Vent 10 ... Siphon toilet 11 ... Toilet bowl 12 ... Drain 13 ... Curved portion 14 ... Ejection Part 20 ... Low tank 21 ... Overflow pipe 22 ... Wash water drainage W ... Maximum stored water level

Claims (1)

[Scope of utility model registration request] 1. A mechanism for discharging air from a drainage path from a toilet bowl of a siphon toilet to a discharge section, the exhaust path being connected to the top of a curved portion of the drainage path or in the vicinity thereof, and to the rear of the toilet. A hollow pipe having a water inlet at the lower end and having an upper end set above the maximum stored water level is erected in the installed low tank, and the end of the exhaust passage is at the upper end of the hollow pipe or An exhaust mechanism for a siphon toilet, which is connected near the upper end.