JP2013142284A - Flush type urinal for male - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush type urinal for male in which urinary calculus is hardly attached.SOLUTION: Intermittent injection of washing water is divided and separately carried out three or more times. A control circuit 3 is preliminarily programmed so that a solenoid valve 5 for washing water injection is intermittently opened three or more times after using a urinal. A human detection sensor 2 senses a person 9 standing in front of the urinal 1. When the human detection sensor 2 detects that the person moves from a human detection range 7 after urination, an opening instruction is sent from the control circuit 3 to the solenoid valve 5 for water washing, and a first washing is started. When washing water quantity reaches a quantity set by a water meter 4, the solenoid valve 5 for water washing is temporarily closed to stop water injection. When seal water rests, a second washing water is similarly discharged and stopped. When seal water rests, further a third washing water is similarly discharged and stopped.

Description

  The present invention relates to a toilet bowl.

  Conventional flush-type urinals for men used a method in which flush water was poured into the toilet only once. In this method, the urine component is diluted by the wash water, but still part of the urine component remains on the toilet surface and the sealing water, so urine stone is generated by the urine component.

  U-shaped and trapezoidal traps are often used for water sealing of conventional flush-type urinals for men. With this shape, the waste water swirls in a water seal, so it is not possible to push out all urine components with a single wash. In particular, in the case of trapezoid traps, the diameter of the discharge pipe at the center is small and the shape is complicated because the diameter on the inflow side is large, so it was difficult and unsanitary to scrape the formed urine stone.

  Conventional flush-type men's urinals have an eye plate on the sealed water to reduce the noise during urination. For this reason, the top surface of the sealed water was always covered with an eye plate, and the development of urinary stones was also a cause for the growth of bacteria. Also, the wash water did not wash the eye plate surface effectively.

  Conventional measures for preventing urinary stone adhesion include prior water injection, chemical injection, regular water flow, smooth processing of pottery surfaces, hydrophilic processing, antibacterial processing, and various other methods, all of which are costly. It was not possible to completely stop the occurrence of urinary stones.

  As described above, in the conventional flushing male urinal, a small amount of urine component remains in the sealed water. Even a small amount of urine component accumulates and grows into urinary stone, causing malodor and vascular obstruction.

  In recent years, it has been required to further reduce the amount of water used to protect the environment, but it has been difficult with the conventional method to reduce the amount of water and prevent the occurrence of urinary stones. Because urine is a liquid, it seemed that it seemed to flow even with a small amount of washing water.

Patent Publication 2011-252337 Patent Publication 2011-252344

  The first problem to be solved by the present invention is to prevent urinary stones from sticking to the water seal part by preventing urine components from remaining in the water seal of the flushing male urinal.

  The second problem to be solved by the present invention is to prevent the formation of urine stones even if the amount of washing water is reduced.

  The present invention solves the above-mentioned problems by configuring the male urinal as an automatic flushing type and dividing the flush water into three or more times.

  The amount of urination for a general adult is considered to be about 300 ml at a time, but after urination, only the amount accumulated in the sealed water remains under the toilet. Assuming that the amount of water stored in the sealed water is about 30 ml, we will make a trial calculation in a stationary beaker experiment. When 30 ml of 100% sewage is put in 3 liters of water, as shown in [Equation 1], sewage can only be diluted to 1/101. However, in the case of diluting by dividing into 1 l by 3 times, as shown in [Equation 2], if you think that 30 ml of 100% urine sewage is put in 1 l of water, dilute to 1/34. In the 2nd time, it becomes 1167th because it becomes 1l diluted water for 30ml diluted seal water of 1/34. In the 3rd water injection, 30ml of sewage diluted to 1167 is 1l of water, so the dilution rate of water remaining in the sealed water is 1/00676. In the same calculation, the total amount of water 1.5l is divided into 0.2l for the first time, 0.4l for the second time, 0.9l for the third time, and diluted for the third time as shown in [Equation 3]. After washing, it will be diluted 3348 times, so even this small amount of water is much more diluted than a single dilution. Actually, the cleaning water that comes after the sealing water is effective to push out the sealing water, so it is further diluted to 1/10 or less. In this split water injection method, the dilution rate increases as the amount of water increases, the number of divisions increases, the amount of water in the latter direction increases, and the amount of sealed water decreases. In this way, if the wash water is poured in several times, the seal water remaining in the water seal becomes very diluted water, making it difficult to form urine stones.

  The present invention is also effective for discharging urine components remaining on the inner surface of the pipe for the same reason as described above.

  In the present invention, it is only necessary to change the water injection control program for the conventional automatic flush toilet, and there is no need to change the basic structure in the manufacturing process. Similarly, existing automatic flush toilets can be modified simply by changing the water injection control program.

  The present invention can be used in combination with conventional urine stone defense technologies such as prior water injection, chemical injection, periodic water flow, smooth surface processing of ceramics, hydrophilic processing, antibacterial processing, etc.

It is a schematic diagram showing the main components of this invention.

  This is illustrated by Figure 1. First, the control circuit 3 is programmed so that the washing water discharge electromagnetic valve 5 is intermittently opened three times or more after using the toilet. When the human sensor 2 senses the person 9 standing in front of the urinal 1 and senses that the person 9 has left the human sensing range 7 after urination, the control circuit 3 issues an opening command to the electromagnetic valve 5 for washing. Feeding and first cleaning starts. When the amount of water set by water meter 4 is reached, electromagnetic valve 5 for cleaning is temporarily closed to stop water injection. When the sealing water is stationary, flush the second wash water in the same way, and stop the wash water. If the sealing water stops, flush the third wash water in the same way and stop again. It is characterized by intermittent water injection over 3 times.

  For continuous use, if the new human sensor detects a person, stop the previous process and program the new process to start from the beginning.

  The water meter 4 can be omitted by adjusting the opening time and pipe diameter of the electromagnetic valve.

  The present invention can be used in the field of toilet bowl manufacturing.

DESCRIPTION OF SYMBOLS 1 Urinal body 2 Person detection sensor 3 Control circuit 4 Water meter 5 Electromagnetic valve 6 Signal line 7 Person detection range 8 Water supply pipe 9 Person

Claims (1)

  A flushing male urinal that divides flush water into three or more times and intermittently pours water.

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