JPH1080468A - Finger sterilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To always discharge an antiseptic solution at an appropriate flow rate even when a nozzle is attached or not attached to a discharge port by providing a discharge flowrate variable means for changing the discharge flow rate of the antiseptic solution and a setting means for setting the discharge flow rate of the antiseptic solution to the optional one. SOLUTION: When the insertion of fingers is detected by a sensor in a finger disinfector, a pump 4 is operated, the antiseptic solution A is atomized and dispersed to the fingers. The solution A is permitted to flow from a tube 6 as it is by detaching the nozzle 3 from the discharge port of the antiseptic solution A, that is, one end of the tube 6. In this case, the flow resistance of the liquid A becomes large when it is used in a state where the nozzle 3 is attached so that a setting switch is set to the larger discharge flow rate. When it is used in a state where the nozzle 3 is detached, the flow resistance of the liquid A becomes small so that the setting switch is set to the small discharge flow rate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand sanitizer installed in a facility where hygiene management is important, such as a hospital.

[0002]

2. Description of the Related Art Conventionally, as a hand disinfecting device of this type, a tank containing a disinfecting solution such as alcohol, a pump for discharging a disinfecting solution from a predetermined discharge port, and a detachable mounting for a disinfecting solution discharge port are provided. There is a known nozzle provided with a nozzle which detects a finger inserted below the nozzle by an optical sensor and injects a disinfecting solution from the nozzle. Also, with this hand disinfecting device, when a nozzle is attached to the discharge port, the disinfectant is sprayed in a mist form from the nozzle, and when the nozzle is removed from the discharge port, the disinfectant can flow down from the discharge port in a liquid state. Has become.

[0003]

By the way, when a nozzle is attached to the discharge port, the flow resistance of the disinfecting liquid is increased, so that the discharge flow rate is reduced. Since the flow resistance is reduced, the discharge flow rate is increased. For this reason, when the disinfectant is discharged from the discharge port where the nozzle is not mounted with the discharge amount when the nozzle is mounted on the discharge port, there is a problem that the discharge flow rate becomes excessive and the disinfectant is wasted.

The present invention has been made in view of the above-mentioned problems, and has as its object to discharge a disinfecting solution at a proper flow rate regardless of whether a nozzle is installed in a discharge port or not. It is an object of the present invention to provide a hand disinfecting device that can perform the disinfection.

[0005]

To achieve the above object, according to the present invention, a tank containing a disinfecting solution and a nozzle detachably attached to a discharge port of the tank for discharging the disinfecting solution are provided. Feeding means for feeding the disinfecting solution to the discharge port, detecting means for detecting that the disinfecting object is inserted at the disinfecting liquid discharge position, and feeding means for detecting the disinfecting object by the detecting means. When the nozzle is attached to the discharge port, the disinfectant is sprayed in a mist form from the nozzle, and when the nozzle is removed from the discharge port, the disinfectant is allowed to flow down from the discharge port in a liquid state. The hand disinfection device includes a discharge flow rate varying means for changing the discharge flow rate of the disinfecting liquid, and a setting means for setting the discharge flow rate of the disinfecting liquid to an arbitrary flow rate. With this, when using with the nozzle attached to the discharge port, set the one with a larger discharge flow rate,
When the nozzle is used with the nozzle removed, the discharge flow rate is set to a smaller value, so that the disinfecting liquid is always discharged at an appropriate flow rate regardless of whether the nozzle is used or not.

According to a second aspect of the present invention, in the hand disinfection device according to the first aspect, a nozzle detecting means for detecting whether or not a nozzle is mounted on the discharge port, and when the nozzle is not mounted on the discharge port. Is provided with control means for setting the discharge flow rate of the disinfecting solution to be smaller than when it is mounted. Accordingly, in addition to the function of claim 1, the discharge flow rate of the disinfectant increases when the nozzle is attached to the discharge port, and the discharge flow rate of the disinfectant decreases when the nozzle is removed from the discharge port. Automatically switches to the appropriate flow rate.

According to a third aspect of the present invention, in the hand disinfection device according to the second aspect, when the object to be disinfected is detected by the detection means, the feeding means is operated for a predetermined time and a nozzle is attached to the discharge port. A control means is provided for making the disinfecting solution discharge time longer when it is on than when it is not mounted. Accordingly, in addition to the effect of the second aspect, the amount of one discharge when the disinfectant is sprayed and the amount when the disinfectant is caused to flow down become substantially equal.

According to a fourth aspect of the present invention, in the hand disinfection device according to the first, second or third aspect, the control means for discharging the disinfectant at a flow rate equal to or higher than a set flow rate for a predetermined time after the feeding means is operated. Have. Thereby, Claims 1 and 2
Alternatively, in addition to the operation of 3, the disinfecting liquid is quickly discharged even when the liquid level of the disinfecting liquid is lowered.

[0009]

1 to 4 show an embodiment of the present invention. FIG. 1 is an overall perspective view of a hand disinfecting apparatus, and FIG.
3 is a side sectional view thereof, FIG. 3 is a block diagram showing a control system, and FIG. 4 is a time chart showing variable control of the discharge flow rate.

In this hand disinfecting device, a disinfecting device main body 1 has a tank 2 for containing a disinfecting solution A, a nozzle 3 removably attached to a discharge port of the disinfecting solution A, and a disinfecting solution A in the tank 2. A pump 4 for feeding the pump 3 and a motor 5 for driving the pump 4 are provided. An injection port 1 a for replenishing the tank 2 with the disinfectant A is provided on the upper surface of the disinfector main body 1. That is, when the pump 4 is driven by the motor 5, the disinfectant A in the tank 2 is sprayed from the nozzle 3 through the tube 6 in a mist state. Further, a sensor 7 for detecting a finger is provided on the disinfecting apparatus main body 1. When a finger is inserted at a spray position of the disinfecting liquid A, the sensor 7 detects this and the motor 5 operates. . The sensor 7 includes, for example, an optical sensor having a light emitting unit and a light receiving unit.
Is connected to a control unit 8 comprising a microcomputer as shown in FIG. The control unit 8 is connected to one end of the pulse generation circuit 9 and the discrimination circuit 10, and outputs a control signal to the pulse generation circuit 9 and the discrimination circuit 10 when the sensor 7 detects a finger. A setting switch 11 for changing the discharge flow rate of the disinfecting liquid is connected to the control unit 8, and the setting switch 11 can switch the discharge flow rate of the disinfecting liquid in at least two stages. Pulse generation circuit 9
The other end is connected to the discriminating circuit 10, and outputs a pulse signal to the discriminating circuit 10 when a control signal is input from the control unit 8. The pulse generation circuit 9 has a pulse width modulation circuit, and modulates the pulse width of the output signal by changing the duty ratio in accordance with the control signal from the control unit 8. The discrimination circuit 10 is connected to the drive circuit 5a of the motor 5, so that a voltage is applied to the motor 5 only while both the output signal of the control unit 8 and the output signal of the pulse generation circuit 9 are being input. .

In the hand disinfecting apparatus constructed as described above, when the insertion of a finger is detected by the sensor 7, the pump 4 is operated to spray the disinfecting solution A from the nozzle 3, and the disinfecting solution A is applied to the finger. Sprayed. A disinfectant A discharge port,
That is, by removing the nozzle 3 from one end of the tube 6, the disinfectant A can be flowed down from the tube 6 and used. At this time, when used with the nozzle 3 mounted, the outflow resistance of the disinfecting liquid A increases, so the setting switch 11 is set to the one with a larger discharge flow rate.
Further, when the nozzle 3 is used with the nozzle 3 removed, since the outflow resistance of the disinfecting liquid A becomes small, the setting switch 11 is set to a smaller discharge flow rate. Accordingly, the disinfectant solution A can be used regardless of whether the nozzle 3 is used or not.
Is always discharged at an appropriate flow rate.

Here, referring to the time chart of FIG.
The variable control of the discharge flow rate will be described. First, when an arbitrary discharge flow rate is set by the setting switch 11,
A control signal for setting the duty ratio to D1 is input from the control unit 8 to the pulse generation circuit 9. As a result, a signal having a pulse width t1 is output from the pulse generation circuit 9 to the discrimination circuit 10, and the sensor 7 detects a finger and the control unit 8 outputs a signal to the discrimination circuit 1.
When the control signal is input to 0, a drive signal corresponding to the duty ratio D1 is output to the drive circuit 5a of the motor 5. When the setting of the discharge flow rate is changed by the setting switch 11, a control signal for setting the duty ratio to D2 (D2 <D1) is input from the control unit 8 to the pulse generation circuit 9. As a result, a signal having a pulse width t2 is output from the pulse generating circuit 9 to the discriminating circuit 10, and when the sensor 7 detects a finger and a control signal is input from the control unit 8 to the discriminating circuit 10, it is determined according to the duty ratio D2. The drive signal is output to the drive circuit 5a of the motor 5. In this case, the duty ratio D2 is D1
Therefore, the rotation speed of the motor 5 is reduced, and the discharge flow rate of the disinfectant A is reduced.

As described above, according to the hand sanitizer of the present embodiment, the pulse width of the drive signal for driving the motor 5 of the pump 4 is modulated by the pulse generation circuit 9 so that the disinfectant A
Of the nozzle 3
When using with the nozzle 3 installed, set it to the larger discharge flow rate, and when using it with the nozzle 3 removed, set it to the smaller discharge flow rate to use either the nozzle 3 attached or not. Even in the state, the disinfectant A can always be discharged at an appropriate flow rate, and wasteful consumption of the disinfectant A can be reliably prevented.

In the above-described embodiment, the discharge flow rate of the disinfecting solution A is arbitrarily switched by the setting switch 11.
As shown in FIGS. 5 and 6, a detector for detecting the presence or absence of the nozzle 3 may be provided, and the discharge flow rate may be automatically switched based on the detection result of the detector. That is, the detector 12 shown in FIG.
a and the light receiving section 12b are arranged with the nozzle 3 facing each other. In the detector 12, when the nozzle 3 is attached to the discharge port of the tube 6 as shown in FIG. 6 (a), the detection signal output from the light emitting unit 12a is blocked by the nozzle 3, and FIG. As shown in ()), when the nozzle 3 is detached, the output signal of the light emitting unit 12a is input to the light receiving unit 12b. Therefore, the presence or absence of the nozzle 3 depends on whether the detection signal is input to the light receiving unit 12b. Is detected.

FIG. 7 is a flowchart showing a control example of the above embodiment, in which the discharge flow rate and the flow time of the disinfectant are controlled.

First, when a finger is detected by the sensor 7 (S1), a timer (not shown) is activated (S2), and the discharge flow rate of the disinfectant is maximized (S3). Thereafter, the pump 4 is operated (S4), and if a predetermined time T1 has elapsed (S4).
5) Switching the discharge flow rate to a preset flow rate (S
6). Here, when the nozzle 3 is mounted on the discharge port (S7), the pump 4 is stopped after the time T2 has elapsed (S8) (S9). If the nozzle 3 is not attached to the discharge port in step S7, the time T3
(S10), the pump 4 is stopped (S10).
9). In this case, the time T2 during which the pump 4 is operated is set longer than the time T3.

As described above, in the above control example, when the pump 4 is operated, the discharge flow rate of the disinfectant is first maximized for the predetermined time T1, so that the liquid level of the disinfectant in the tube 6 is lowered. Even in this case, the disinfecting liquid can be quickly discharged, which is advantageous when the discharge flow rate is set to a small value, for example, when the nozzle 3 is not attached to the discharge port. The operation time T of the pump 4 when the nozzle 3 is attached to the discharge port, that is, when the disinfectant is sprayed.
2 is set to be longer than the operation time T3 of the pump 4 when the nozzle 3 is not attached to the discharge port, that is, when the disinfectant is caused to flow down. The discharge amount can be made substantially equal, and the amount of disinfectant used can always be made appropriate.

[0018]

As described above, according to the hand disinfecting apparatus of the first aspect, the disinfecting solution can always be discharged at an appropriate flow rate in both the use state with and without the nozzle. Unnecessary consumption of the disinfectant can be reliably prevented.

According to the hand disinfection device of the second aspect, in addition to the effect of the first aspect, the discharge flow rate of the disinfectant can be automatically switched to an appropriate flow rate, so that the discharge flow rate is artificially set. Mistakes can be reliably prevented.

According to the third aspect of the present invention, in addition to the effect of the second aspect, the amount of discharge at a time when the disinfectant is sprayed and the amount when the disinfectant is allowed to flow down can be made substantially equal, so that disinfection can be achieved. The amount of liquid used can always be made appropriate.

According to the fourth aspect of the present invention, in addition to the operation of the first, second or third aspect, the disinfectant can be quickly discharged even when the level of the disinfectant is low. This is advantageous when the discharge flow rate is set low, for example, when a nozzle is not attached to the discharge port.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a hand sterilizer according to an embodiment of the present invention.

FIG. 2 is a side cross-sectional view of a hand sterilizer.

FIG. 3 is a block diagram showing a control system.

FIG. 4 is a time chart showing variable control of a discharge flow rate.

FIG. 5 is a side view of the detector.

FIG. 6 is a plan view of a detector showing the presence or absence of a nozzle.

FIG. 7 is a flowchart showing a control example.

[Explanation of symbols]

2 tank, 3 nozzle, 4 pump, 5 motor, 7
... Sensor, 8 ... Control unit, 9 ... Pulse generation circuit, 11 ... Setting switch, 12 ... Detector.

Claims (4)

[Claims] 1. A tank containing a disinfecting solution, a nozzle detachably attached to a discharge port for discharging the disinfecting solution in the tank, a feeding means for supplying the disinfecting solution to the discharge port, and a disinfecting solution discharge A detecting means for detecting that the disinfecting object is inserted at the position, and a control means for activating the feeding means when the disinfecting object is detected by the detecting means, and when the nozzle is attached to the discharge port, the disinfecting liquid is supplied. In a hand disinfecting device that sprays in a mist form from a nozzle and allows the disinfectant to flow down in a liquid state from the discharge port when the nozzle is removed from the discharge port, a discharge flow rate variable unit that changes a discharge flow rate of the disinfectant liquid, Setting means for setting the discharge flow rate of the disinfectant to an arbitrary flow rate. 2. A nozzle detecting means for detecting whether or not a nozzle is mounted on the discharge port, and when the nozzle is not mounted on the discharge port, the discharge flow rate of the disinfecting liquid is smaller than when the nozzle is mounted. The hand disinfection device according to claim 1, further comprising control means for setting. 3. When the object to be disinfected is detected by the detecting means, the feeding means is operated for a predetermined time, and the discharge time of the disinfecting liquid is longer when the nozzle is mounted on the discharge port than when the nozzle is not mounted. 3. The hand disinfection device according to claim 2, further comprising control means for increasing the length of the hand. 4. The hand disinfection device according to claim 1, further comprising control means for discharging the disinfectant at a flow rate equal to or higher than a set flow rate for a predetermined time after the feeding means is operated. .