CN204326199U - A kind of novel water-saving device - Google Patents
A kind of novel water-saving device Download PDFInfo
- Publication number
- CN204326199U CN204326199U CN201420803148.4U CN201420803148U CN204326199U CN 204326199 U CN204326199 U CN 204326199U CN 201420803148 U CN201420803148 U CN 201420803148U CN 204326199 U CN204326199 U CN 204326199U
- Authority
- CN
- China
- Prior art keywords
- control relay
- conditioning circuit
- timers
- water
- signal
- 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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- Sanitary Device For Flush Toilet (AREA)
Abstract
The utility model discloses a kind of novel water-saving device, comprise electromagnetic valve, human body detection sensor, 555 timers, fly-wheel diode, signal conditioning circuit, control relay, the signal output part of human body detection sensor connects the signal input part of signal conditioning circuit, the signal input part of output termination 555 timer of signal conditioning circuit, the signal output part of 555 timers connects the coil of control relay, the coil of control relay is in parallel with fly-wheel diode, electromagnetic valve is located on inlet channel, and electromagnetic valve accesses civil power after connecting with the constant open contact of control relay.The utility model adopts the water injection rate being controlled water tank by 555 timer-operated electromagnetic valves; adopt the coils from parallel connection of coils of fly-wheel diode and control relay; protect 555 timers; avoid the unmanned generation using phenomenon of but still washing by water at regular time and quantity in public lavatory; avoid a large amount of wastes of water resource; responded national call, and structure is simple, is easy to realize.
Description
Technical field
The utility model relates to water saving field, is specifically related to a kind of novel water-saving device.
Background technology
At present, public lavatory many employings auto-flushing in unit or school instruction building, by inlet channel constantly to water tank with water, when the amount injecting water acquires a certain degree, buoyant device in water tank just can open Draw off valve, the water of water tank rushes out toilet flushing automatically, until water level decreasing extremely to a certain degree, the buoyant device in water tank closes Draw off valve, start the process of second time water storage, so move in circles, as long as inflow conditioning is suitable, just can ensure that tank is washed by water at regular time and quantity.Although this method can solve the bath problem in public lavatory, in the unmanned period used, water also ceaselessly can inject water tank, cause lavatory unmanned as student attend class, unit nobody time, but still wash by water at regular time and quantity, make a large amount of water resource waste.According to calculating, the water filling in 1 hour of buoyancy water economizer, discharge water about 0.8 ton, darg 15 hours, with about 12 tons, water, cause the significant wastage of water resource.
Utility model content
The purpose of this utility model is to provide a kind of novel water-saving device, solves the problem of public lavatory bath waste water resource.
The utility model is by the following technical solutions:
A kind of novel water-saving device, comprise electromagnetic valve, human body detection sensor, 555 timers, fly-wheel diode, signal conditioning circuit, control relay, the signal output part of human body detection sensor connects the signal input part of signal conditioning circuit, the signal input part of output termination 555 timer of signal conditioning circuit, the signal output part of 555 timers connects the coil of control relay, the coil of control relay is in parallel with fly-wheel diode, electromagnetic valve is located on inlet channel, and electromagnetic valve accesses civil power after connecting with the constant open contact KM1 of control relay.
Described human body detection sensor adopts pressure sensor, and pressure sensor is located on the ground of entrance, public lavatory, and pressure sensor is provided with topping.
Described signal conditioning circuit adopts two-stage differential formula amplifying circuit.
This practicality provides a kind of novel water-saving device; adopt the water injection rate being controlled water tank by 555 timer-operated electromagnetic valves; adopt the coils from parallel connection of coils of fly-wheel diode and control relay; protect 555 timers; the utility model avoids the unmanned generation using phenomenon of but still washing by water at regular time and quantity in public lavatory, avoids a large amount of wastes of water resource, has responded national call; and structure is simple, be easy to realize.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the utility model provides a kind of novel water-saving device, comprise electromagnetic valve 2, human body detection sensor, 555 timers, fly-wheel diode, signal conditioning circuit, control relay, the signal output part of human body detection sensor connects the signal input part of signal conditioning circuit, the signal input part of output termination 555 timer of signal conditioning circuit, the signal output part of 555 timers meets the coil KM of control relay.The coil KM of control relay is in parallel with sustained diode 1, and electromagnetic valve 2 is located on inlet channel 1, and electromagnetic valve 2 accesses civil power after connecting with the constant open contact KM1 of control relay.Described human body detection sensor adopts pressure sensor; pressure sensor is located on the ground of entrance, public lavatory; and pressure sensor is provided with the topping not affecting sensor performance; topping can under the prerequisite not affecting pressure sensor performance; protect pressure sensor as much as possible, extend the application life of pressure sensor.When there being people to enter public lavatory, can step down on pressure sensor, pressure sensor can send the signal of telecommunication, flows to signal conditioning circuit.Signal conditioning circuit adopts two-stage differential formula amplifying circuit, operational amplifier A
1reverse input end connect the signal output part of pressure sensor, operational amplifier A
1input in the same way by the 3rd resistance R
3ground connection, and operational amplifier A
1input in the same way by the 4th resistance R
4connect operational amplifier A
1output V
out1; Operational amplifier A
2reverse input end by the 7th resistance R
7connect reference voltage V
2, and operational amplifier A
2reverse input end by the 8th resistance R
8ground connection, operational amplifier A
2input in the same way by the 5th resistance R
5connect operational amplifier A
1signal output part V
out1, and operational amplifier A
2input in the same way by the 6th resistance R
6connect operational amplifier A
2output V
out2.Operational amplifier A
2output V
out2the pin 2 of 555 timers is connected by the second electric capacity C2, the pin 6 of 555 timers connects the pin 7 of 555 timers, the pin 6 of 555 timers connects pin 8 by the first resistance R1, the pin 8 of 555 timers connects pin 4, and the pin 4 of 555 timers is connected to the working power Vcc of 555 timers, the pin 6 of 555 timers connects pin 1 by the first electric capacity C1, the pin 1 of 555 timers connects pin 3 by the coil KM of control relay, sustained diode 1 is in parallel with the coil KM of control relay, and the negative electrode of sustained diode 1 connects the pin 3 of 555 timers, the plus earth of sustained diode 1, according to the operating principle of operational amplifier, can calculate: V
out2=R
6/ R
5(V
2-2V
1), wherein V
1the output voltage of pressure sensor, V
2a steady state value, V
2the determination of size is relevant with the average weight of people, can determine according to actual conditions, has the effect reducing error.
Operating principle of the present utility model is: the signal of telecommunication that displacement transducer sends flows to signal conditioning circuit, and signal conditioning circuit amplifies this signal of telecommunication, when the voltage of signal conditioning circuit output is timing, i.e. V
2>2V
1, be judged as unmanned public lavatory of coming in and going out, 555 timers are in stable state, export as low level, and the coil KM of control relay must not be electric; When the voltage of signal conditioning circuit output is for time negative, i.e. V
2<2V
1be judged as that someone comes in and goes out public lavatory, 555 timers enter temporary stable state, export as high level, the coil KM of control relay obtains electric, thus the constant open contact KM1 of control relay closes, inlet channel 1 is opened in electromagnetic valve 2 energising be located on inlet channel 1, water is enable to inject water tank, can flushing latrine after water tank fills, reach the object of washing by water at regular time and quantity.After certain hour, the output of 555 timers becomes low level again by high level, gets back to stable state, the coil KM dead electricity of control relay, and its constant open contact KM1 disconnects, and electromagnetic valve 2 power-off is closed, and no longer flushing latrine, until lower individual enters public lavatory.Coil KM due to relay inside is actual is an inductance, so the contrary higher induced voltage in direction can be produced when the coil KM dead electricity of control relay, this voltage very easily causes damage to 555 timers, and the polarity of sustained diode 1 and control relay are energized direction to instead, play counteracting, leakage current so be parallel on coil KM with the diode D1 that direction is contrary.
Claims (3)
1. a novel water-saving device, it is characterized in that: comprise electromagnetic valve, human body detection sensor, 555 timers, fly-wheel diode, signal conditioning circuit, control relay, the signal output part of human body detection sensor connects the signal input part of signal conditioning circuit, the signal input part of output termination 555 timer of signal conditioning circuit, the signal output part of 555 timers connects the coil of control relay, the coil of control relay is in parallel with fly-wheel diode, electromagnetic valve is located on inlet channel, and electromagnetic valve accesses civil power after connecting with the constant open contact of control relay.
2. a kind of novel water-saving device as claimed in claim 1, is characterized in that: described human body detection sensor adopts pressure sensor, and pressure sensor is located on the ground of entrance, public lavatory, and pressure sensor is provided with topping.
3. a kind of novel water-saving device as claimed in claim 1, is characterized in that: described signal conditioning circuit adopts two-stage differential formula amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803148.4U CN204326199U (en) | 2014-12-18 | 2014-12-18 | A kind of novel water-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803148.4U CN204326199U (en) | 2014-12-18 | 2014-12-18 | A kind of novel water-saving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204326199U true CN204326199U (en) | 2015-05-13 |
Family
ID=53162573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420803148.4U Expired - Fee Related CN204326199U (en) | 2014-12-18 | 2014-12-18 | A kind of novel water-saving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204326199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555199A (en) * | 2018-12-15 | 2019-04-02 | 江苏省建筑工程集团有限公司 | The automatic control device of public restroom |
-
2014
- 2014-12-18 CN CN201420803148.4U patent/CN204326199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555199A (en) * | 2018-12-15 | 2019-04-02 | 江苏省建筑工程集团有限公司 | The automatic control device of public restroom |
| CN109555199B (en) * | 2018-12-15 | 2023-11-17 | 江苏省建筑工程集团有限公司 | Automatic controller for public toilet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |