CN215226796U

CN215226796U - Non-touch water dispenser

Info

Publication number: CN215226796U
Application number: CN202120339479.7U
Authority: CN
Inventors: 卢建义; 朱纪璋
Original assignee: Medacom Jiangxi Electric Co ltd
Current assignee: Medacom Jiangxi Electric Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-21
Anticipated expiration: 2031-02-05

Abstract

The utility model discloses a non-touch-control water dispenser relates to intelligent control, aims at solving the hand contact water dispenser, perhaps drinking cup rim of a cup contact switch, increases the problem that the influenza has cross contact infectious hidden danger easily, and its technical scheme main points are: the gesture acquisition circuit is arranged on the body and used for acquiring human body gestures to output a trigger signal; the cup body detection circuit is arranged on the machine body and responds to the situation that the water cup is arranged on the object placing platform to output an object placing signal; and the judgment circuit is connected with the gesture acquisition circuit and the cup body detection circuit, and responds to the trigger signal and the object placing signal to output a water outlet signal. The utility model discloses place the drinking cup on storage platform at people to adopt the gesture to shelter from triggering, make the judgement circuit carry for the water supply circuit in order to open the play water signal of delivery port, carry out the water injection to the drinking cup, need not people and touch the fuselage of water dispenser, reduce influenza and have cross infection's risk.

Description

Non-touch water dispenser

Technical Field

The utility model relates to an intelligent control, more specifically say, it relates to a non-touch-control water dispenser.

Background

The drinking machine is a device which heats or cools the barreled purified water (or mineral water) and is convenient for people to drink. The barreled water is placed above the machine and is matched with the barreled water for use. The water dispensers are classified into warm, ice-hot and ice-hot types, and the ice-hot machines are classified into semiconductor refrigeration water dispensers and compressor type refrigeration water dispensers.

When the water dispenser on the market is used, people need to press a key or touch a touch screen with hands to take water, or water is taken by touching a switch at a water outlet through a water cup, the water dispenser cannot be cleaned frequently, and when different people use the same water dispenser, the hidden danger of cross contact infection is easily increased due to the fact that the hands contact the water dispenser or the cup mouth of the water cup contacts the switch.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a non-touch-control water dispenser places the drinking cup on storage platform at people to adopt the gesture to shelter from and trigger, make and judge the circuit and carry out the water injection for the water supply circuit in order to open the water outlet signal of delivery port, need not people and touch the fuselage of water dispenser, reduce influenza and have cross infection's risk.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a non-touch-control water dispenser, includes the fuselage, be equipped with the delivery port on the fuselage and be located the platform of putting of delivery port below, still include:

the gesture acquisition circuit is arranged on the body and used for acquiring human body gestures to output a trigger signal;

the cup body detection circuit is arranged on the machine body and responds to the situation that the water cup is arranged on the object placing platform to output an object placing signal;

the judging circuit is connected with the gesture collecting circuit and the cup body detecting circuit and responds to the trigger signal and the object placing signal to output a water outlet signal;

and the water supply loop is coupled with the judgment circuit and responds to the water outlet signal to conduct the water outlet for water injection.

Through adopting above-mentioned technical scheme, the gesture acquisition circuit triggers and produces triggering signal when people shelter from to whether cup detection circuitry detects the drinking cup to having on the object platform simultaneously, place the drinking cup on object platform at people, and adopt the gesture to shelter from triggering, make judgement circuit carry for the water supply circuit in order to open the water outlet water signal of delivery port, carry out the water injection to the drinking cup, need not people and touch the fuselage of water dispenser, it has cross infection's risk to reduce influenza.

The utility model discloses further set up to: the gesture collection circuit comprises a plurality of pyroelectric far-infrared detection circuits and a switch circuit, the pyroelectric far-infrared detection circuits are connected with the switch circuit and the judgment circuit, the pyroelectric far-infrared detection circuits respond to human body infrared signals to output closing signals for conducting the switch circuit, and the switch circuit responds to the closing signals to transmit trigger signals.

Through adopting above-mentioned technical scheme, adopt pyroelectric far infrared detection circuit and switch circuit, can gather the infrared signal that the human body gived off, the information acquisition precision is high to make between hand and the fuselage reserve the clearance, need not to touch the fuselage, more sanitary.

The utility model discloses further set up to: the cup body detection circuit comprises an infrared detection circuit, an ultrasonic sensor and an OR gate logic circuit, and the infrared detection circuit or the ultrasonic sensor responds to the shielding of the water cup to output an object placing signal.

Through adopting above-mentioned technical scheme, can detect at storage platform through the mode that infrared detection circuitry or ultrasonic sensor sheltered from through the physics to the drinking cup, detection efficiency is fast, the precision is high.

The utility model discloses further set up to: the infrared detection circuit comprises an infrared sensor, an operational amplification circuit and a voltage comparison circuit, wherein the input end of the voltage comparison circuit is coupled with a pull-up resistor to a power supply, and the connection point of the pull-up resistor and the voltage comparison circuit is connected with an adjustable potentiometer in series and then grounded.

By adopting the technical scheme, the signals of the infrared sensor are amplified through the operational amplification circuit, and the amplified signals are compared through the voltage comparison circuit, so that the accuracy of the placement condition of the water cup is judged.

The utility model discloses further set up to: the water quality detection device is characterized by further comprising a pressure detection circuit and a quantitative detection circuit, wherein the pressure detection circuit is arranged on the storage platform and used for acquiring the weight of the water cup and the water quantity so as to output a weight signal, and the quantitative detection circuit is connected with the pressure detection circuit and responds to the weight signal that is greater than a reference signal so as to output a closing signal for closing the water outlet.

Through adopting above-mentioned technical scheme, can contrast the condition of placing of drinking cup with the mode of gravity through the pressure detection circuit, and through quantitative determination circuit cooperation pressure detection circuit, when carrying out the water injection to the drinking cup, the pressure size that the pressure detection circuit detected is directly perceived to be influenced through the increase of water yield, when weight signal is greater than the reference signal, closes the delivery port, has avoided the water yield overflow's the condition.

The utility model discloses further set up to: the pressure detection circuit comprises a Wheatstone bridge circuit based on the force-sensitive resistor and an integrated amplification circuit, wherein the output end of the Wheatstone bridge circuit is connected with the input end of the integrated amplification circuit, and the output end of the integrated amplification circuit is connected with the quantitative detection circuit.

By adopting the technical scheme, the Wheatstone bridge based on the force sensitive resistor has higher detection precision, and the subsequent operation of carrying out grading comparison on the voltage signal generated by the pressure detection circuit is facilitated through the amplification processing of the integrated amplification circuit.

The utility model discloses further set up to: the quantitative detection circuit comprises a plurality of voltage comparators connected in parallel in sequence, the output ends of the voltage comparators are connected with a triode switch circuit, the triode switch circuit is connected with a first voltage comparator and a last voltage comparator, the triode switch circuit is electrically connected with a turn-on relay and a turn-off relay respectively, and the controlled ends of the turn-on relay and the turn-off relay are connected in a water supply loop.

By adopting the technical scheme, the water supply device is formed by sequentially connecting a plurality of voltage comparators in parallel, the weight signal output by the pressure detection circuit is compared by each voltage comparator, when the output weight signal is greater than the minimum reference voltage of the voltage comparators, the water supply loop is conducted by the conducting relay, the water outlet is opened, when the gravity reaches the maximum value of the reference voltage, the stopping relay is triggered, the water supply loop is disconnected, the closing of the water outlet is realized, the water injection is stopped, and the water is prevented from overflowing from the water cup.

The utility model discloses further set up to: the judging circuit comprises an AND gate logic circuit based on a chip 74LS08, the output end of the AND gate logic circuit is connected with a triode and a trigger relay, and the controlled end of the trigger relay is connected with a water supply loop.

Through adopting above-mentioned technical scheme, adopt chip 74LS08 to have good integrated level, can export the water signal when receiving trigger signal and putting the thing signal, the processing speed is fast, and the people's maintenance of being convenient for, simultaneously through triode and trigger relay, can realize cutting off through switching on of low-voltage signal control high voltage circuit, and is safer.

To sum up, the utility model discloses following beneficial effect has:

gesture acquisition circuit triggers and produces triggering signal when people shelter from to whether cup detection circuitry detects the drinking cup to having on the object platform simultaneously, place the drinking cup on object platform at people, and adopt the gesture to shelter from triggering, make judgement circuit carry for the water supply return circuit in order to open the water outlet go out the water injection to the drinking cup, need not people and touch the fuselage of water dispenser, reduce influenza and have cross infection's risk.

Drawings

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a schematic circuit diagram of a detection circuit for detecting a cup body according to the present invention;

FIG. 3 is a schematic circuit diagram of the quantitative detection circuit of the present invention;

FIG. 4 is a schematic circuit diagram of a pyroelectric far infrared detection circuit of the present invention;

FIG. 5 is a schematic circuit diagram of the water supply circuit of the present invention;

fig. 6 is a schematic structural diagram of the present invention.

In the figure: 1. a body; 2. a water outlet; 3. a placement platform; 4. a gesture acquisition circuit; 5. a cup body detection circuit; 6. a judgment circuit; 7. a water supply circuit; 8. a pyroelectric far infrared detection circuit; 9. an infrared detection circuit; 10. an ultrasonic sensor; 11. an OR gate logic circuit; 12. an operational amplifier circuit; 13. a voltage comparison circuit; 14. a pressure detection circuit; 15. a quantitative detection circuit; 16. a Wheatstone bridge circuit; 17. an integrated amplifier circuit.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A non-touch drinking machine is disclosed, as shown in figures 1 and 4, comprising a machine body 1, a water outlet 2 and a placement platform 3 located below the water outlet 2 are arranged on the machine body 1, a gesture collecting circuit 4, a cup body detecting circuit 5, a judging circuit 6 and a water supply loop 7 located at the water outlet 2 are arranged in the machine body 1, wherein the gesture collecting circuit 4 is arranged on the machine body 1 and is used for collecting human body gestures to output a trigger signal, the cup body detecting circuit 5 is arranged on the machine body 1 at two sides of the placement platform 3 and is used for responding to a cup placed on the placement platform 3 to output a placement signal, the judging circuit 6 is connected with the gesture collecting circuit 4 and the cup body detecting circuit 5 and is used for responding to the trigger signal and the placement signal to output a water outlet signal, the water supply loop 7 is coupled with the judging circuit 6 and is used for conducting water injection through the water outlet 2 in response to the water outlet signal, wherein the judging circuit 6 comprises an AND logic circuit based on a chip 74 08, the output end of the AND gate logic circuit is connected with a triode and a trigger relay KM3, and the controlled end of the trigger relay KM3 is connected with the water supply loop 7.

As shown in fig. 1, the water dispenser further comprises a pressure detection circuit 14 and a quantitative detection circuit 15, the pressure detection circuit 14 is disposed on the placement platform 3, the pressure detection circuit 14 is used for obtaining the weight of the water cup and the water amount to output a weight signal, and the quantitative detection circuit 15 is connected with the pressure detection circuit 14 and outputs a closing signal for closing the water outlet 2 in response to the weight signal being greater than the reference signal.

As shown in fig. 2, the cup body detection circuit 5 includes an infrared detection circuit 9, an ultrasonic sensor 10 and an or gate logic circuit 11, the infrared detection circuit 9 or the ultrasonic sensor 10 outputs an object signal in response to the shielding of the cup, wherein the infrared detection circuit 9 includes an infrared sensor, an operational amplifier circuit 12 and a voltage comparison circuit 13, a pull-up resistor is coupled to an input end of the voltage comparison circuit 13 and is connected to a power supply, and a connection point of the pull-up resistor and the voltage comparison circuit 13 is connected in series with an adjustable potentiometer and then grounded.

As shown in fig. 4, the gesture collection circuit 4 includes a plurality of pyroelectric far infrared detection circuits 8 and a switch circuit, the pyroelectric far infrared detection circuits 8 are connected with the switch circuit and the judgment circuit 6, the pyroelectric far infrared detection circuits 8 respond to human body infrared signals to output closing signals for turning on the switch circuit, the switch circuit responds to the closing signals to transmit trigger signals, the switch circuit is a switch tube based on an NPN type triode, and a collector of the switch tube is connected with the trigger relay KM3 to a power supply.

As shown in fig. 1, 3 and 5, the pressure detection circuit 14 includes a wheatstone bridge circuit 16 and an integrated amplifier circuit 17 based on force sensitive resistors, an output terminal of the wheatstone bridge circuit 16 is connected with an input terminal of the integrated amplifier circuit 17, and an output terminal of the integrated amplifier circuit 17 is connected with a quantitative detection circuit 15, wherein the quantitative detection circuit 15 includes a plurality of voltage comparators connected in parallel in sequence, output terminals of the voltage comparators are connected with a triode switch circuit, the triode switch circuits connected with output terminals of the first and last voltage comparators are respectively and electrically connected with a turn-on relay KM2 and a turn-off relay KM1, and fixed resistors with the same resistance value are connected between reverse input terminals of the voltage comparators, controlled terminals of the turn-on relay KM2 and the turn-off relay KM1 are connected in the water supply loop 7, specifically, the power supply loop has an electromagnetic valve set, a controlled switch of a trigger relay KM3, a controlled switch of the trigger relay KM1, a fixed switch of the fixed resistor, and a fixed switch of the fixed resistor, The controlled switch of the on-relay KM2 was connected to the utility power to form a loop, wherein each solenoid valve, for example, a solenoid valve for controlling hot water or a cold water pipe, was connected in series with the controlled switch of the on-relay KM3 and the controlled switch of the off-relay KM1, respectively, the controlled switch of the on-relay KM3 was connected in parallel with the controlled switch of the on-relay KM2, and the on-relay KM2 and the off-relay KM3 were both normally open relays, and the off-relay KM1 was a normally closed relay.

In the embodiment, the infrared sensors or ultrasonic sensors 10 are provided in multiple groups, each group is respectively arranged on the machine body 1 at two sides of the object placing platform 3 in a longitudinal array manner, so as to detect the water cups with different heights, the triodes are all selected from NPN type triodes, the pyroelectric infrared detection sensor in the pyroelectric far infrared detection circuit 8 is arranged at the front position of the machine body 1, and the independent control of cold water and hot water is realized by arranging a plurality of the triodes, in the embodiment, a monostable circuit based on the chip NE555 may also be separately provided as a timing circuit, an input terminal of the timing circuit is connected to an output terminal of the and logic circuit, and the output end of the chip NE555 is connected with a normally open relay, and a normally open switch of the relay is connected in series in the water supply loop 7, so that the water outlet signal triggers the timing circuit to supply the water supply loop 7 with the closed preset time length, and the water injection amount is timed and quantified.

The working process is as follows: when people pour water, firstly, a water cup is placed on the object placing platform 3 which is positioned right below the water outlet 2, the water cup is detected through the infrared sensor and the ultrasonic sensor 10, but when the water cup shields the infrared sensor or the ultrasonic sensor 10, an object placing signal which is a voltage signal is output to the operational amplification circuit 12, the object placing signal is amplified by the operational amplification circuit 12 and compared with the reference voltage of the voltage comparison circuit 13, so that the object placing signal can be output when the water cup is detected to be placed, then, people approach a hand to the pyroelectric infrared sensor on the machine body 1, collect an infrared signal of a human body through the pyroelectric infrared sensor and transmit the infrared signal to the operational amplification circuit 12 for amplification, the infrared signal is compared with a set reference signal through the voltage comparison circuit 13, when the hand approaches the machine body 1 and is in contact with the machine body 1, the output is the trigger signal of high level and gives judgment circuit 6 for AND gate logic circuit, when judging circuit 6 contact trigger signal simultaneously and putting the thing signal for the triode switches on and supplies power to trigger relay KM3, realizes switching on water supply circuit 7, under the solenoid valve working condition that gets electricity, opens delivery port 2, makes in hot water or cold water flow to the drinking cup through delivery port 2, need not the staff and touch fuselage 1, thereby has avoided cross infection's risk, more sanitary safety.

When a water cup is placed on the object placing platform 3, the pressure carried by the object placing platform 3 is detected through the pressure detection circuit 14, meanwhile, in the process of water injection, hot water or cold water is accumulated in the water cup to cause the pressure borne by the object placing platform 3 to be gradually increased, pressure signals are output in a voltage signal mode through a Wheatstone bridge based on a force sensitive resistor, the pressure signals are amplified through the integrated amplification circuit 17 and then are connected with the homodromous input ends of a plurality of voltage comparators, fixed resistors are connected among the reverse input ends of the plurality of voltage comparators to provide reference voltages gradually increased for the voltage comparators, when the pressure signals are greater than the reference voltages, one of the voltage comparators is a high-level signal, so that the voltage comparators are connected with a triode to be conducted, when the voltage comparator with the minimum reference voltage outputs the high level, the relay KM2 is conducted to be powered on, make the normally open controlled switch of on-off relay KM2 in water supply circuit 7 closed, supply power to the solenoid valve, keep the water injection of water dispenser, and when the water injection makes pressure signal be greater than maximum reference voltage, make stop relay KM1 obtain the electricity, thereby open the controlled switch of stop relay KM1 who establishes ties with the solenoid valve, cut off the power supply circuit 7, stop the water injection, thereby realize when the water injection is to a certain amount, the automatic shutdown water injection operation, avoid hot water or cold water overflow and cause the waste of water resource.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a non-touch-control water dispenser, includes fuselage (1), be equipped with delivery port (2) on fuselage (1) and be located delivery port (2) below and put thing platform (3), its characterized in that: further comprising:

the gesture acquisition circuit (4) is arranged on the machine body (1) and used for acquiring human body gestures to output trigger signals;

the cup body detection circuit (5) is arranged on the machine body (1) and responds to the situation that a water cup is arranged on the object placing platform (3) to output an object placing signal;

the judgment circuit (6) is connected with the gesture acquisition circuit (4) and the cup body detection circuit (5) and responds to the trigger signal and the object placing signal to output a water outlet signal;

and the water supply loop (7) is coupled with the judgment circuit (6) and responds to the water outlet signal to conduct the water outlet (2) for water injection.

2. The non-touch water dispenser according to claim 1, characterized in that: the gesture collection circuit (4) comprises a plurality of pyroelectric far-infrared detection circuits (8) and a switch circuit, the pyroelectric far-infrared detection circuits (8) are connected with the switch circuit and the judgment circuit (6), the pyroelectric far-infrared detection circuits (8) respond to human body infrared signals to output closing signals for switching on the switch circuit, and the switch circuit responds to the closing signals to transmit trigger signals.

3. The non-touch water dispenser according to claim 1, characterized in that: cup detection circuitry (5) include infrared detection circuitry (9), ultrasonic sensor (10) and OR gate logic circuit (11), infrared detection circuitry (9) or ultrasonic sensor (10) shelter from with the output in order to put the thing signal in response to the drinking cup.

4. The non-touch water dispenser according to claim 3, characterized in that: the infrared detection circuit (9) comprises an infrared sensor, an operational amplification circuit (12) and a voltage comparison circuit (13), wherein the input end of the voltage comparison circuit (13) is coupled with a pull-up resistor to a power supply, and the connection point of the pull-up resistor and the voltage comparison circuit (13) is connected with an adjustable potentiometer in series and then grounded.

5. The non-touch water dispenser according to claim 1, characterized in that: the water quality detection device is characterized by further comprising a pressure detection circuit (14) and a quantitative detection circuit (15), wherein the pressure detection circuit (14) is arranged on the storage platform (3), the pressure detection circuit (14) is used for acquiring the weight of a water cup and the water volume to output a weight signal, the quantitative detection circuit (15) is connected with the pressure detection circuit (14), and the closing signal for closing the water outlet (2) is output in response to the weight signal being larger than a reference signal.

6. The non-touch water dispenser according to claim 5, characterized in that: the pressure detection circuit (14) comprises a Wheatstone bridge circuit (16) based on force sensitive resistors and an integrated amplification circuit (17), wherein the output end of the Wheatstone bridge circuit (16) is connected with the input end of the integrated amplification circuit (17), and the output end of the integrated amplification circuit (17) is connected with a quantitative detection circuit (15).

7. The non-touch water dispenser of claim 6, wherein: quantitative determination circuit (15) include a plurality of parallelly connected voltage comparator in proper order, and are a plurality of voltage comparator's output is connected with triode switch circuit, connects in first and last voltage comparator output triode switch circuit electric connection has turn-on relay and end relay respectively, turn-on relay and end relay's controlled end is connected in water supply return circuit (7).

8. The non-touch water dispenser according to claim 1, characterized in that: the judging circuit (6) comprises an AND logic circuit based on a chip 74LS08, the output end of the AND logic circuit is connected with a triode and a trigger relay, and the controlled end of the trigger relay is connected with the water supply loop (7).