JPS589713Y2 - Toilet ventilation system - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ventilation system used in a flush toilet, and uses water supply pressure to drive a ventilation fan, thereby saving energy on the power supply and improving usability.

Conventionally, ventilation in domestic or public toilets has involved draining water and exhausting odors using electric ventilation fans.

Therefore, if drainage is used, ventilation is insufficient, and if electric ventilation doors are used, the power switch must be opened and closed every time the toilet is used, and especially in flush toilets, this must be done separately from the drainage operation. It was even more complicated.

The present invention eliminates the drawbacks of the above-mentioned conventional examples.

To achieve this, the present invention provides a nozzle in the water supply channel of a flush toilet that converts the water supply pressure into a velocity head, and a rotary vane holding a magnet is provided downstream of the nozzle, and a magnetic blade is installed concentrically with the magnet. A magnet with a ventilation fan is provided in isolation, and a hydraulic responsive part is provided to open and close a ventilation gear in the ventilation path of the ventilation fan via a lever operated by water supply pressure.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an automatic ventilation fan for a toilet with a ventilation gear, and it is arranged as a part of the water supply pipe between the water supply tap 2 and the water supply pipe 3 to the toilet 4.

Then, by operating the flush valve 6 in the toilet 4, the water stored in the toilet 4 passes through the flush pipe 5 and the waste from the toilet bowl 8 is discharged.
Water is replenished into the gas station 4, and the automatic ventilation fan 1 rotates using the water flow and water pressure at that time to provide ventilation.

7 is a faucet for washing hands. FIG. 2 is a detailed diagram of the automatic ventilation fan 1.

Now, water is drained into the toilet bowl 8 through the flush pipe 5 by the flush valve 6, and on the other hand, when the water supply is replenished, the water passes through the water supply valve 2, enters the inlet 21 of the automatic ventilation fan 1, and passes through the nozzle 12 that changes to the velocity water head. Magnet 15 and rotating blade 1
Water is supplied to the gas station 4 from the water supply pipe 3 through the shaft 13 marked with 4 and through the outlet 22.

At this time, due to the speed of the water jetted from the nozzle 12, the rotating blade 1
When 4 rotates, magnet A15 which is integrated with this also rotates.

This magnet 15 has NS and N poles alternately, and the rotating blade 14. Casing 9 integrated with shirts l to 13
It is kept inside.

On the other hand, a magnet l-B 16 with a ventilation fan 10 is provided concentrically with this shaft 13 and magnetically isolated, and NS poles are similarly arranged thereon.

Therefore, the ventilation fan 10 and the rotary blade 14 are connected to the magnets 1-A15. They rotate together through a magnetic joint made of B16.

In this way, each time water is drained and water is replenished, the ventilation fan 10 rotates to provide ventilation.

On the other hand, the automatic ventilation fan 1 is equipped with a water pressure responsive part 17 that detects the difference in water supply pressure through a diaphragm 18 through a high pressure introduction hole 24 and a low pressure introduction hole 25 and slides a shaft 26, and lifts a lever 19 when water is supplied. A ventilation gear 11 provided in front of the ventilation fan 10 is opened by moving an interlocking plate 20, and the ventilation fan 10 discharges the odor in the toilet.

When the water supply stops, the pressure in the water pressure response part 17 becomes equal to both the high and low pressure introduction holes 24 and 25, so the interlocking plate 20 is pushed up by the force of the spring 23, and the ventilation gear gallery 11 is closed and isolated by cold air from outside. .

The odor from the toilet is discharged through the above operation, but approximately 151 parts of water is normally replenished for defecation and approximately 51 parts for urine, so assuming that 51 parts per minute of water is replenished, approximately 151 parts of water is replenished with stool. If the ventilation fan 10 rotates for 3 minutes and urinates for about 1 minute and uses a 15cm diameter fan, it will take about 10 m3 to urinate and about 3 m to urinate.
The odor-emitting air in step 3 is ventilated and becomes sufficiently effective as a household toilet odor.

Also, although there is a limit to rotation in magnetic joints, 1
000 to 1,500 rotations are sufficient, so the above-mentioned capacity can be sufficiently discharged.

Furthermore, even when the water pressure is low, around 0.3 kg/7'cm2, it can reach 500 rpm, so ventilation can be performed, and even in places where the water pressure is over 5 kg/cm2, the water supply valve can be adjusted to allow water to flow at around 51/min. By doing this, the rotation can be kept below the limit.

Furthermore, the automatic ventilation fan 1 does not have to be located at a low position as shown in FIG. Alternatively, the automatic ventilation fan 1 may be provided as a normal fixed open gear assembly.

Furthermore, if the distern 4 is not a low tank but a high tank as shown in FIG. 1, the above method is inexpensive and there is no need to worry about being seen from outside.

In this way, this invention allows the ventilation fan to rotate automatically every time the flush toilet is used, ensuring that odors are removed.In addition, the ventilation fan can also be driven simply by draining the flush toilet, making it possible to operate the ventilation fan automatically each time the flush toilet is used. Compared to a ventilator fan that requires both opening/closing the power switch and flushing, it is extremely simple and convenient to use, and it also saves electrical energy.

Moreover, the installation work can be done in conjunction with the work of the flush toilet, making it simple and requiring no separate electrical work.

[Brief explanation of drawings]

FIG. 1 is a piping circuit diagram showing an embodiment of the toilet ventilation system of the present invention, and FIG. 2 is a longitudinal sectional view of the same system. 3... Water supply pipe (water supply channel), 10... Ventilation fan, 15° 16... Magnet) A, B (
magnetic fittings).

Claims (1)

[Scope of utility model registration request] A nozzle that converts the water supply pressure into a velocity head is installed in the water supply channel of the flush toilet, a rotating blade with a magnet is installed downstream of the nozzle, and a magnet with a ventilation fan is installed concentrically with the magnet and magnetically isolated. . A ventilation system for a toilet, comprising a water pressure responsive part that opens and closes a ventilation gear in the ventilation path of the ventilation fan via a lever operated by water supply pressure.