JPH024639Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a hand washing device installed in workplaces such as IC factories and other electronic industries and food industries, and more specifically, in clean rooms.

<Conventional technology> Conventionally, in this type of clean room, it was extremely difficult to allow microscopic dust and bacteria attached to people's hands and fingers to be brought into the room, so cleaning water was automatically discharged to wash the hands. By blowing out hot air after
It allows you to wash and dry your hands without touching anything.

However, with this conventional method, a large amount of fine dust is generated and scattered indoors due to clothes vibrating or cuffs rubbing together when washing hands, and also generated by rubbing hands together when drying. There was a problem that dust such as aging substances on the skin would be diffused into the room along with the drying air.

Therefore, we have installed an exhaust port in the bowl of the wash basin that connects to the outside through an exhaust fan, and at the same time hot air is blown out after automatic cleaning, the exhaust fan is activated to remove dust generated during hand washing and drying from the above exhaust port. It is conceivable that the water could be discharged outside, but in this case, if the remaining water from cleaning that adhered to the inner surface of the bowl flows down and enters the exhaust port, it may cause the exhaust fan to malfunction or reduce exhaust performance. The problem arises.

<Problem to be solved by the invention> The problem to be solved by the invention is to prevent washing water from entering the exhaust vent provided in the hand wash basin, and to ensure that dust generated during hand washing and drying is directed outside. It is something that is discharged.

<Means for solving the problem> The technical means taken by the present invention to solve the above problem is to exhaust the air inside the wash basin and the air inside the bowl to the outside through the exhaust port provided in the bowl of the wash basin. It is equipped with an exhaust fan for discharging air, and has a gutter portion protruding from the upper edge of the exhaust port.

<Function> The present invention guides the washing water flowing down toward the exhaust port along the gutter section and below the exhaust port.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

This embodiment shows a case where a wash basin A is placed on a pedestal G and attached to a wall surface H in a semi-embedded manner, as shown in FIG.

Wash basin A is made of ceramics and synthetic resin,
A bowl part 1 formed in a substantially mortar shape, an exhaust passage 2 formed at the lower end of the bowl part 1, and a cover part 3 covering the upper surface of the bowl part 1 are integrally provided.

The bowl part 1 has a drain port 1a on its bottom surface to which a drain pipe ₄ is connected. In addition to making the bottom part sized to prevent water from accumulating, an exhaust port 1b communicating with the exhaust path 2 is provided on a side surface higher than the drain port 1a, that is, on a rear side surface in the drawing.

The exhaust port 1b opens in a substantially rectangular shape from the front, and a gutter portion 1c that projects diagonally forward with respect to the inner surface of the bowl portion 1 is provided on the upper edge thereof in an inclined shape to drain the washing water flowing down from above the bowl portion 1. The cleaning water is guided to the drain port 1a along the gutter portion 1c to prevent the cleaning water from entering the exhaust port 1b.

In the case of this embodiment, the gutter portion 1c is formed in the shape of a front mountain with the highest center, so that the cleaning water is guided from the left and right sides of the exhaust port 1b to the drain port 1a.

The exhaust path 2 extends obliquely upward from the exhaust port 1b along the back surface of the bowl portion 1, and has an exhaust pipe _B1 connected to the outside connected to the tip thereof, and an exhaust fan B is provided in the middle of the exhaust pipe _B1 . do.

The exhaust fan B rotates to open the exhaust port 1b.
The air inside the bowl part 1 is sucked in by making a U-turn from near the bottom of the bowl part 1, and is exhausted outside through the exhaust pipe _B1.In this embodiment, the operation is controlled by a sensor E, which will be described later. However, the air volume is changed after a predetermined time from the start of operation.

In other words, while the exhaust fan B is discharging cleaning water from the water discharging device C ₁ (described later), the rotation speed of the exhaust fan B is low, and when drying air is blown from the air outlet D ₁ (described later), the rotation speed increases and the suction is performed. The amount is increasing.

In addition, the bowl part 1 has a rim passageway 1d formed in an annular shape around the entire circumference at its upper edge, and a dome-shaped covering part 3 is provided along the upper surface of the rear half of the rim passageway 1d. An opening 1e is provided at the upper front of the vessel a.

A water supply port _1f to which the water supply pipe C2 connected to the solenoid valve _C3 is connected is provided on the back side of the rim water passage 1d, and a large number of water injection holes 1g are bored at appropriate intervals on the bottom surface. The cleaning water supplied from the electromagnetic valve _C3 is discharged from the water injection holes 1g along the inner surface of the bowl portion 1 to form a water film for cleaning.

Furthermore, by forming the lower surface of the rim passageway 1d so that the portion 1d' located above the exhaust port 1b is gradually higher than the other portions, no cleaning water remains in the higher portion when cleaning is completed. That's what I do.

The water discharging device C ₁ is connected to its upper end with a water discharging pipe C ₄ branched from the secondary side of the solenoid valve C ₃ that supplies wash water to the rim water passage 1 d, and has its lower end protruding inward from the covering portion 3 . By installing the solenoid valve
This prevents splashes of the washing water supplied from C ₃ from scattering outside of the wash basin A.

The dryer D is an air outlet provided toward the inside of the bowl part 1.
D ₁ , a ventilation pipe D ₂ connected to the outlet D ₁ and communicating with the room or outdoors, and a blower fan D ₃ disposed in the middle of this ventilation pipe D ₂ .
On the downstream side of D ₃ , a heater D ₄ and an air filter D ₅ such as a sterilization filter are arranged in order to remove dust in the air and oxides scattered from the surface of the heater D ₄ .

Therefore, in the dryer D, indoor or outdoor air heated by the heater _D4 is blown out at high speed into the bowl portion ₁ from the air outlet D1 via the air filter _D5 .

Sensor E is a conventionally well-known photoelectric sensor.
When the user inserts his or her hand into the bowl portion 1 through the opening 1e, a sensing signal is sent to the controller F.

The controller F is electrically connected to the solenoid valve C ₃ , the exhaust fan B, the sensor E, the blower fan D ₃ and the heater D ₄ , and when a sensing signal is sent from the sensor E, the controller F waits for 10 to 15 seconds, for example. Open the solenoid valve _C3 and rotate the exhaust fan B at a low rotation speed, then turn on the heater for 30 seconds to 1 minute.
Electrify D ₄ to generate heat and rotate blower fan D ₃ .
Furthermore, the exhaust fan B is rotated at a high rotation speed.

Thus, when the user inserts his/her hand into the bowl part 1 through the opening 1e, the wash water is spewed out from the water injection hole 1g of the rim passageway 1d, and the bowl part 1 is filled with water.
A water film is formed on the inner surface, and the user's hands are washed by spraying water from the water spouting tool _C1 in a shower shape, and furthermore, the air inside the bowl portion 1 is exhausted from the exhaust port 1b. At the same time as these operations stop, heated air, that is, hot air, is blown out at high speed from the air outlet D ₁ to blow away water droplets on the hands and dry them, and the amount of air blown from the air outlet 1 b increases, making it easier to wash your hands while washing your hands. Dust generated from users and their clothes, skin aging substances generated by rubbing their hands together, etc. are attracted and exhausted to the outside.

At this time, residual water adhering to the inner surface of the bowl part 1 and residual water remaining in the rim passageway 1d during cleaning are removed from the bowl part 1.
Even if the water flows down the inner surface toward the exhaust port 1b, it is guided to the drain port 1a and drained by the gutter portion 1c without entering the exhaust port 1b.

Although the gutter portion 1c is formed in the shape of a front mountain in the above-mentioned embodiment, the shape is not limited to this, and the washing water flowing down may be allowed to enter the exhaust port 1b by, for example, making it inclined toward either the left or right side. The gutter portion 1c may be formed in any shape as long as it leads to the drain port 1a.

<Effects of the invention> Since the present invention has the above configuration, it has the following advantages.

The cleaning water flowing down toward the exhaust port is guided below the exhaust port along the gutter, so unlike conventional automatic cleaning, residual water from cleaning flows down and enters the exhaust port, preventing the exhaust fan from malfunctioning. Dust generated during hand washing and drying can be reliably discharged outside without causing any problems or deteriorating exhaust performance.

[Brief explanation of drawings]

FIG. 1 is a vertical side view of a wash basin showing an embodiment of the present invention, and FIG. 2 is a front view of the same with a portion cut away.
FIG. 3 is a sectional view taken along the - line in FIG. 2. A...wash basin, 1...bowl section, 1b...exhaust port, 1c...gutter section, B...exhaust fan.

Claims (1)

[Scope of utility model registration request] A hand-washing device comprising a hand-washing basin and an exhaust fan for discharging air inside the bowl to the outside from an exhaust port provided in the bowl of the hand-washing device, and having a gutter protruding from the upper edge of the exhaust port.