JPS5927828Y2 - Water supply device for hand washing - Google Patents

Description

[Detailed description of the invention] The present invention is implemented in an automatic hand washing device configured so that tap water for hand washing is not supplied unless the push button of the washing liquid dispensing device is pressed to dispense the washing solution. Regarding equipment.

-7 Conventional automatic hand washing devices have a mechanism in which a solenoid valve installed in the water supply route opens for a certain period of time after a predetermined period of time has passed after the washing solution is poured out, and tap water for hand washing is automatically supplied from the faucet. However, since this device supplies tap water for hand washing at a constant flow rate from beginning to end, there is a problem that the tap water washes away the cleaning solution before it has been thoroughly rubbed into the hands.

In other words, in normal cases, you can perform hygienic hand washing by first mixing a washing solution with a small amount of water and rubbing it into your hands, then rinsing it off vigorously with tap water. If you supply a fixed amount of tap water from the beginning, you will not be able to thoroughly rub the cleaning solution into your hands, and if you reduce the water supply to a small amount from the beginning, you may be able to rub the solution into your hands, but the cleaning will not be sufficient. There is a problem.

Therefore, in view of the above-mentioned points, the present invention is designed to completely rub in the solution and rinse it by supplying a small amount of tap water after pouring out the cleaning solution, and then supplying a large amount of water. The purpose is to provide a hand-washing water supply device that is devised to make hand-washing completely hygienic and at the same time save water.Please refer to the attached drawings of examples of the present invention below. Riko will explain in detail.

FIG. 1 is a front view of an automatic handwashing device embodying the present invention, in which 1 is a flush handwash installed in the handwash room, 2 is a box attached to the top of the handwash 1, and the box The present invention is installed inside the body 2.

Reference numeral 3 denotes a cleaning liquid dispensing device attached to the front side of the box body 2, and a cleaning solution such as a soap solution is stored inside a tank 3a.

3b is a pouring nozzle to which the tank 3a is attached; when the push button 4 protruding from the front of the nozzle 3b is pressed in the direction of the arrow in FIG. A fixed amount is dispensed from 3C.

3d is a mounting board connected to the plate end of the nozzle 3b, and this board 3
By fixing d to the box 2 side, the pouring device 3
The whole is attached to the front of the box 2.

Further, in FIG. 2, reference numeral 5 denotes an operating rod whose tip is attached to the push button 4, and whose plate end 5a protrudes into the switch chamber 6 recessed in the box 2 through the mounting plate 3d. When pushing in the direction of the arrow to pour out the cleaning solution, the operating rod 5
moves rightward in the drawing, and its tip 5a is configured to switch on a microswitch 7 installed in the switch chamber 6.

Next, in Fig. 1, 8 is a tap water supply pipe, and the tap water sent through this pipe is supplied to the washbasin 1 from a faucet 9 rotatably attached to the bottom of the box 2. However, the water supply route from the water supply pipe 8 to the faucet 9 is branched in parallel into two routes, a main route 8a and a sub route 8b, as shown in FIG. ing.

10a and 10b are both the main and sub routes 8
With the solenoid valves installed in a and 8b, the main path 8a
The allowable flow rate of the electromagnetic valve 10a attached to the water valve 10a is preset to the same amount as when a normal water faucet is fully opened, or a slightly smaller amount than that.

Further, the permissible flow rate of the solenoid valve 10b attached to the sub-path 8b is adjusted to be considerably smaller than that of the solenoid valve 10a of the main path 8a.

The two solenoid valves 10a and 10b described above are operated first when a predetermined period of time elapses after pressing the push button 4 of the cleaning liquid dispensing device 3 described above to pour out the cleaning solution.
0b is opened to supply a small amount of tap water from the faucet 9, and after this small amount of water has been supplied for a while, the solenoid valve 10a of the main path 8a is opened to supply a large amount of tap water from the faucet 9 for a predetermined period of time. Next, an embodiment of a sequence control circuit that sequentially performs the above operations will be described based on the descriptions of FIGS. 3 and 4.

In the figure, 11 is a pulse width variable pulse generator that is activated when the microswitch 7 of the cleaning liquid dispensing device 3 is turned on and emits an activation signal S1 after T1 time, and 12 is a pulse generator that generates an activation signal S1.
1, the solenoid valve 10 of the sub-path 8b
Fig. 3 shows a CR timer which emits an actuation signal S2 for a time T2.

Therefore, the solenoid valve 10b of the sub-path 8b is opened for a time T2 by the actuation signal S2, allowing a small amount of water to be supplied to the faucet 9.

13 is an activation signal S2 generated by the CR timer 12.
A second CR timer is energized to generate an actuation signal S3 for a time T3 to the solenoid valve 10a of the main path 8a after the T2 time elapses.
A opens and moves based on this activation signal S3, and supplies a large amount of tap water to the faucet 9 for a time T3.

In the above embodiment, the solenoid valve 10b in the sub-path 8b closes at the same time as the solenoid valve 10a in the main path 8a opens, but remains open until the solenoid valve 10a in the main path 8a closes to supply water. You may do so.

Further, the second CR timer 13 is indicated by the dotted line S4 in FIG.
It is also conceivable that the operation signal S1 of the pulse generator 11 is used to perform a time-limited operation as shown in FIG.

In addition, during the above time, T1 is usually 3 to 5 seconds, and T2 is 10 to 15 seconds.
The seconds and T3 are preset to 15 to 20 seconds.

Further, in FIG. 3, 14 indicates a dryer or paper supply device that is activated a predetermined time after tap water is supplied, and 15 is a dryer or paper supply device that is unlocked a predetermined time after the dryer or paper supply device 14 has finished operating. An electric lock is shown attached to the door (not shown) of the washroom, and this door is normally designed to be freely openable from the outside of the washroom.

Since the present invention has the above-described configuration, tap water will not be supplied from the faucet unless the push button of the cleaning liquid dispensing device is pressed to pour out the cleaning solution, thereby preventing unsanitary hand washing using only tap water. I can do it.

In addition, the amount of tap water supplied from the faucet after pouring out the cleaning solution is adjusted to a small amount for a certain period of time at the beginning. Rub it in, or if the solution is a soap solution, lather it well so that it sticks to your hands evenly.

After the above-mentioned small amount of water supply continues for a certain period of time, a large amount of water is supplied from the faucet, and if the cleaning solution adhering to the hands is washed away using this water supply, hygienic hand washing is completed.

In addition, the solenoid valve automatically stops the water supply, so
It is possible to eliminate re-contamination due to cock operation after washing.

Therefore, according to the present invention, by using a two-stage automatic water supply system with different amounts of water supply, it is possible to completely wash away the cleaning solution adhering to the hands, making extremely hygienic hand washing possible, and also supplying the entire amount of water from the beginning. Compared to conventional devices of this kind, it has the advantage of significantly saving tap water, and is suitable for use in hand washing rooms in various cooking facilities and medical facilities.

[Brief explanation of the drawing]

The drawings show examples, and Fig. 1 is a front view of an automatic hand washing device implementing the present invention, Fig. 2 is a side view of a washing liquid dispensing device, and Fig. 3 is a block diagram illustrating the main structure of the present invention. The wiring diagram and FIG. 4 are time charts. 3...Washing liquid pouring device, 4...□...Push button, 7...Micro switch, 8...
・Water supply pipe, 8a...Main route, 8b...
...Sub route, 9...Faucet, 10a,
10 b...Solenoid valve.

Claims (1)

[Scope of utility model registration request] An automatic hand washing device configured so that when a push button on the washing liquid dispensing device is pressed to dispense washing solution, a solenoid valve installed in the water supply path opens after a certain period of time, and tap water for hand washing is supplied from the faucet for a set period of time. In the water supply route leading to the faucet,
The middle of the route is branched in parallel into two routes, the main route and the sub route, and a solenoid valve is installed on each of these routes. The water supply for hand washing is characterized in that the number of valves is larger than that of the valves, and the timing of opening of both the solenoid valves is such that the solenoid valve in the sub route precedes the solenoid valve in the main route by an arbitrary period of time. Device.