CN2244658Y - Inductive automatic tap - Google Patents
Inductive automatic tap Download PDFInfo
- Publication number
- CN2244658Y CN2244658Y CN 96200516 CN96200516U CN2244658Y CN 2244658 Y CN2244658 Y CN 2244658Y CN 96200516 CN96200516 CN 96200516 CN 96200516 U CN96200516 U CN 96200516U CN 2244658 Y CN2244658 Y CN 2244658Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- pass filter
- switching tube
- tap
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Magnetically Actuated Valves (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The utility model relates to an inductive automatic tap which is composed of a metal tap, a control circuit and an electromagnetic valve, wherein the metal tap is also served as a sensor for sensing hands. When hands are adjacent to the metal tap, the induction current of the human body is input to a sensing flip-flop circuit composed of a time-base circuit 555 by the metal tap. The output end of the sensing flip-flop circuit is connected with an isolation diode, and the output end of the isolation diode is connected with an active low pass filter; the high frequency is filtered and enlarged by the active low pass filter to be output, and a signal enlarged by wave filtering is connected with a base electrode of a switch tube; a collector electrode circuit of the switch tube is connected with a relay coil, and a normally open contact of the relay is connected with the electromagnetic valve to perform the control function.
Description
The utility model relates to a kind of induction type automatic faucet, belongs to daily electronic equipment.
In many public arenas, as: hospital, dining room, public lavatory etc., people need to wash one's hands, and present water tap all needs with the direct switch of hand, and this is easy to cause cross infection, and it is popular to produce communicable diseases.So these occasions are sought after a kind of water tap of directly not using hand switch.
The utility model provides an induction type automatic faucet of being made up of sensor-metal faucet, control circuit, solenoid valve at above problem.It is inserted water pipe, connect power supply after, when staff during near water tap, solenoid valve is opened automatically under the control of control circuit and is sent water, when hand is removed, cuts off feedwater automatically.The people need not to catch when washing one's hands and touches water tap, has avoided cross infection.
The purpose of this utility model is achieved in that
The induction type automatic faucet is made up of metal faucet, control circuit, solenoid valve.Wherein metal faucet is again as the sensor of responding to hand; Control circuit is made up of sensor trigger circuit, isolating diode, active low-pass filter, switching tube, relay.Metal faucet is connected to the sensor trigger circuit of being made up of time base circuit 555, sensor trigger circuit output connects isolating diode, isolating diode output is connected to the source low-pass filter, signal after filtering is amplified connects the base stage of switching tube, the collector loop of switching tube is succeeded electric apparatus coil, the relay normally open point connects solenoid valve, starts to control to make to use.
When staff near metal faucet anti-, metal faucet inputs to sensor trigger circuit with the induction current of human body, sensor trigger circuit output control switch pipe after filtering is amplified, and switching tube is succeeded electric apparatus coil, the relay normally open point connects solenoid valve, controls the tap of fetching boiling water.
Below in conjunction with drawings and Examples the utility model is described in detail.
Fig. 1 is a control circuit schematic diagram of the present utility model.
Metal faucet connects the input end that sensor trigger circuit 2 pin that time base circuit 555 constitutes link to each other with 6 pin as sensor among Fig. 1,555 3 pin connect the anode of isolating diode, the negative electrode of diode connects the input end of the active filter of being made up of C1, R1, R2, R3, R4 and operational amplifier, active filter output connects the base stage of switching tube, the coil of relay is connected on the collector loop of switching tube, and the Chang Kaiduan of relay links to each other with solenoid valve and inserts power supply.When staff when the metal faucet, metal faucet inputs to the sensor trigger circuit of being made up of time base circuit 555 with the induction current of human body, sensor trigger circuit output connects isolating diode, be connected to the source low-pass filter with high frequency filtering and amplification output through isolating diode output, signal after filtering is amplified connects the base stage of switching tube, the collector loop of switching tube is succeeded electric apparatus coil, and the relay normally open point connects solenoid valve, starts to control to make to use.
Claims (1)
- The induction type automatic faucet is made up of metal faucet, control circuit, solenoid valve, it is characterized in that:Metal faucet is again as the sensor of responding to hand;Control circuit is made up of sensor trigger circuit, isolating diode, active low-pass filter, switching tube, relay, metal faucet is connected to the sensor trigger circuit of being made up of time base circuit 555, sensor trigger circuit output connects isolating diode, isolating diode output is connected to the source low-pass filter, signal after filtering is amplified connects the base stage of switching tube, the collector loop of switching tube is succeeded electric apparatus coil, and the relay normally open point connects solenoid valve, starts to control to make to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200516 CN2244658Y (en) | 1996-01-17 | 1996-01-17 | Inductive automatic tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96200516 CN2244658Y (en) | 1996-01-17 | 1996-01-17 | Inductive automatic tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2244658Y true CN2244658Y (en) | 1997-01-08 |
Family
ID=33887058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96200516 Expired - Fee Related CN2244658Y (en) | 1996-01-17 | 1996-01-17 | Inductive automatic tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2244658Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344051A (en) * | 2014-09-12 | 2015-02-11 | 成都威邦科技有限公司 | Touch type water tap water-saving device based on sensor |
| CN105179782A (en) * | 2014-11-28 | 2015-12-23 | 成都雷克尔科技有限公司 | Filter and amplification contact type water-saving tap based on logic protection emitter coupling |
-
1996
- 1996-01-17 CN CN 96200516 patent/CN2244658Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344051A (en) * | 2014-09-12 | 2015-02-11 | 成都威邦科技有限公司 | Touch type water tap water-saving device based on sensor |
| CN104344051B (en) * | 2014-09-12 | 2016-12-21 | 青岛玉兰祥商务服务有限公司 | Sensor-based touching type water tap water economizer |
| CN105179782A (en) * | 2014-11-28 | 2015-12-23 | 成都雷克尔科技有限公司 | Filter and amplification contact type water-saving tap based on logic protection emitter coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |