CN200952948Y - Anti-run water electronic water meter - Google Patents

Abstract

The utility model relates to an anti-water leakage electric water meter, mainly consisting of a meter casing, a water inlet, a water outlet, an impeller, a sensor, a control system and a display component. The utility model is characterized in that a sensor detecting the impeller revolution is arranged on the upper axle of the impeller in the meter casing; the meter casing is also arranged with a solenoid valve, which is installed in the lower wall of the meter casing, a valve core is installed in the valve body, an electromagnet is arranged on the lower end of the valve body, a permanent magnet is arranged on one end of the valve core opposite to the electromagnet, and a spring is arranged between the valve core and the valve body; a plug is arranged on the outer meter casing, a multifunction board is arranged outside the meter casing, a circuit board, a programmable controller, a liquid crystal display, a time setter, a reset button, a buzzer and a battery are mainly arranged in the multifunction board, and the multifunction board is connected with the plug through a connector. The utility model is suitable for the metering of a variety of water utilizations, and has the advantages of simple structure, anti-water leakage and anti-theft.

Description

Anti-run water electronic water meter

technical field

The utility model belongs to a water flow metering device, in particular to a tap water meter, in particular to an electronic water meter with the function of preventing running water.

Background technique

With the development of the economy, the continuous expansion of cities, and the development of agriculture, especially the development of special planting agriculture such as fruits and vegetables, the demand for water is increasing; coupled with the drought of the climate, the problem of lack of water resources is becoming more and more serious . In addition, water safety, preventing uncontrolled running of water and preventing water theft are also very important issues. How to conserve water has become a huge issue that society attaches great importance to. For a long time for this reason, many technologies about water saving have occurred. These technologies have played a very important role in saving water and saving water resources. But wherein about the technology that prevents the long running water that artificial and non-artificial causes cause, runs and leaks water, steals water, especially this technology that is used for sub-switch and total switch is less. There are often some families, units, construction sites, etc. that cause great water and property losses due to uncontrolled long running water, running water and stolen water. For this reason, it is necessary to propose a technology that can detect and deal with abnormal long running water, running water and stealing water in time, and the technology should be easy to use and flexible in control.

Utility model content

The purpose of this utility model is to solve the above problems, and propose an electronic water meter that prevents running water. The water meter uses microelectronic automatic control technology, which can detect abnormal water running and long running water in time, and can deal with it in time. Shut off the water mains and it's easy to use.

The purpose of this utility model is achieved through the following technical solutions: an anti-running water electronic water meter, mainly comprising: a watch case, a water inlet, a water outlet, an impeller, a sensor, a control system and a display assembly, and is characterized in that: A sensor detection wheel is arranged on the upper shaft of the impeller in the case, and a sensor induction coil is arranged beside it; a solenoid valve is also arranged in the watch case, and its valve body is installed in the lower wall of the watch case. Equipped with a spool, the lower end of the valve body is provided with an electromagnet, a permanent magnet is provided at one end of the spool opposite to the electromagnetic coil, and a spring is provided between the spool and the valve body; a socket is provided on the outer shell. A multi-function board is also arranged outside the watch case, and a circuit board, a programmable controller, a liquid crystal display, a time setting device, a reset button, a buzzer and a battery are mainly arranged in the multi-function board, and the programmable controller The circuit board is connected to the liquid crystal display, reset button, buzzer, and time setter for control, and the multi-function board is connected to the socket through the connection line connecting the power supply, transmitting the sensing signal and the control signal, and the socket is connected to the meter The sensors and solenoids inside the housing have power and signal connections.

The control relationship between the programmable controller and other components: the controller obtains the number of rotations of the impeller from the sensor, converts the flow of water, and displays the water consumption through the display circuit and the liquid crystal display; at the same time, the controller records the flow rate of the water flow Time, compared with the set time, that is, the time allowed for continuous water flow, when the continuous water flow time is equal to the preset time, the buzzer will be activated and an alarm will be issued; at the same time, the solenoid valve will be activated, and the solenoid valve will be energized momentarily, and the electromagnet will generate a magnetic field , and the permanent magnet repel each other, the valve core rises to block under the action of the repelling magnetic force and continues to block the water outlet under the action of the spring; when the reset button is pressed, the controller receives the reset signal and sends the solenoid valve Instantaneously reverse the power to make it generate a magnetic field, attract the permanent magnet, attract the valve core and the electromagnet together, open and keep the water outlet open under the action of the permanent magnet.

The utility model adopts the following supplementary schemes, which can be more perfect and more effectively implemented:

The multifunctional board is provided with an IC card reader, and the IC card reader is connected to the programmable controller for control, can read in and display the purchased water information in the IC card, and can synchronously reduce the existing water consumption according to the water consumption. Purchase water storage and display the remaining water storage on the LCD.

The multi-function board is provided with a power detection circuit connected to the controller, and when the voltage of the power is lower than the requirement, the controller controls the solenoid valve to close the water outlet.

Because the utility model adopts the sensor to detect the impeller, the controller calculates and displays the water volume through the liquid crystal display, which saves the mechanical counting and display wheel group, greatly simplifies the structure, and the impeller is more sensitive, the counting is accurate, and the observation is convenient; The solenoid valve controlled by the controller timing control is used to control the device for switching the water outlet. The time limit for continuous water flow can be set in advance. When the set time is exceeded, the solenoid valve will automatically close the water outlet, thus avoiding a large amount of running water for a long time. The situation and the situation of water being stolen for a long time occur, which greatly improves the water safety. Therefore, compared with the prior art, the utility model has the advantages of simple structure, accurate measurement, improvement of water safety and benefit of water saving.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a schematic structural diagram of the sensor of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described: Embodiment 1: see accompanying drawing, a kind of anti-running water electronic water meter mainly comprises: watch case 5, water inlet 1, water outlet 19, impeller 2, sensor , control system and display assembly, a detection wheel 14 of a sensor is arranged on the upper shaft of the impeller in the watch case, a damping layer 21 is fixed on a part of the detection wheel shell, and two sensor induction coils are arranged beside it 15. The number of rotations of the impeller can be determined by the discontinuous signal detected by the induction coil; there is also a solenoid valve in the watch case, and the valve body 20 is installed in the lower wall of the watch case, and the valve body is equipped with a valve core 16. An electromagnet 13 is provided at the lower end of the valve body, a permanent magnet 18 is provided at one end of the valve core opposite to the electromagnetic coil, and a spring 17 is provided between the valve core and the valve body; a socket 3 is provided on the outer shell, A multi-function board 7 is also arranged outside the watch case, and a circuit board, a programmable controller 6, a liquid crystal display 9, a time setting device 8, a reset button 10, a buzzer 11 and a battery are mainly arranged in the multi-function board. , the programmable controller is controlled and connected with the liquid crystal display, the reset button, the buzzer and the time setter through the circuit board, and the multi-function board is connected with the all The socket is connected with the sensor and solenoid valve in the watch case with power supply and signal connection. The multi-function board is also provided with a power detection circuit connected to the controller control, when the voltage of the power supply is lower than the requirement, the controller controls the solenoid valve to close the water outlet.

Embodiment 2: a kind of anti-running water electronic water meter, described multi-function board is provided with IC card reader 12, and this IC card reader is connected with programmable controller, can read and display IC card Purchased water information, and can synchronously reduce the purchased water stock according to the water consumption and display the remaining purchased water on the LCD. Other structures are the same as those in Embodiment 1, and will not be repeated here.

The operation process of the utility model is: the controller acquires the number of turns of the impeller from the sensor, converts the flow of water, and displays the water consumption through the display circuit and the liquid crystal display; The time is compared with the time allowed for continuous flow of water. When the time of continuous flow of water is equal to the preset time, the buzzer will be activated and an alarm will be issued; at the same time, the solenoid valve will be activated to energize the electromagnet instantly, and the electromagnet will generate a magnetic field, which will interact with the permanent magnet. Repulsion, the valve core rises under the repulsive magnetic force to block and continue to block the water outlet under the action of the spring; when the reset button is pressed, the controller receives the reset signal, and instantly energizes the solenoid valve in reverse, so that It generates a magnetic field, attracts the permanent magnet, attracts the valve plug to the electromagnet, opens and keeps the water outlet open under the action of the permanent magnet.

The controller of the present utility model can use the micro-power consumption single-chip microcomputer of MICROCHIP company, high-energy battery, because the electromagnetic valve all just charges instantaneously in operation, can accomplish quite a long time without changing battery. The utility model can automatically close the water pipe when the voltage of the battery is too low, and can only be opened after the battery is replaced, so that the user can be prevented from using water for free without monitoring.

Claims (3)

1, a kind of anti-electronic water meter of metalling run out, mainly comprise: watchcase (5), water inlet (1), water delivering orifice (19), impeller (2), sensor, control system and display module, it is characterized in that: be provided with the detection wheel (14) of a sensor in watchcase on the upper axis of described impeller, its next door is provided with sensor sensing coil (15); In watchcase, also be provided with a solenoid valve, its valve body (20) is installed in the lower wall of watchcase, and spool (16) is housed in the valve body, and valve body lower end is provided with electromagnet (13), end at the spool relative with electromagnet is provided with permanent magnet (18), is provided with spring (17) between spool and valve body; On appearance surface shell, be provided with a socket (3), outside watchcase, also be provided with a multifunction board (7), in this multifunction board, mainly be provided with wiring board, Programmable Logic Controller (6), LCD (9), time is provided with device (8), reset button (10), hummer (11) and battery, described Programmable Logic Controller is by wiring board and LCD, reset button, hummer, time is provided with device and carries out control linkage, described multifunction board is by connecting power supply, the line of transmission sensing signal and control signal (4) is connected with described socket, sensor in this socket and the watchcase, solenoid valve has power supply to be connected with signal

The control relation of described Programmable Logic Controller and miscellaneous part: controller obtains the rotation number of turns of impeller from described sensor, and the flow of conversion water outlet goes out water consumption by display circuit and described liquid crystal display displays; Controller writes down the time of current simultaneously, promptly allow the time of continuous flowing water to compare with the time that is provided with, during time of equaling to preset when the time of continuous flowing water, start hummer, give the alarm, start solenoid valve simultaneously, give electromagnet (13) moment energising, electromagnet produces magnetic field, repels each other with permanent magnet (18), and spool is blocked and continue to block water delivering orifice under spring (17) effect rising under the effect of the magnetic force that repels each other; When pressing reset key, after controller receives reset signal, oppositely switch on for solenoid valve moment, make it produce magnetic field, inhales mutually with permanent magnet (18), spool under the effect of magnetic force with the electromagnet suction together, and under the effect of permanent magnet, stay open water delivering orifice.

2, the anti-electronic water meter of metalling run out according to claim 1, it is characterized in that described multifunction board is provided with IC-card and reads in device (12), this IC-card reads in device and Programmable Logic Controller carries out control linkage, can read in and show the water yield information of purchasing in the IC-card, can purchase the water storage and on LCD, demonstrate residue according to the synchronous minimizing of water consumption and purchase the water yield.

3, the anti-electronic water meter of metalling run out according to claim 1 is characterized in that described multifunction board is provided with power sense circuit and controller control linkage, and when supply voltage was lower than requirement, the controller control electromagnetic valve was closed water delivering orifice.

Images