CN202614330U

CN202614330U - Liquid measurement and control device

Info

Publication number: CN202614330U
Application number: CN 201220308881
Authority: CN
Inventors: 王群英
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2012-12-19
Anticipated expiration: 2022-06-29

Abstract

The utility model relates to a liquid measurement and control device which comprises a liquid level detection circuit, an oscillating circuit, a wireless launch circuit and a wireless receiving alarm circuit. Output signals of the liquid level detection circuit are controlled by the oscillating circuit to be transmitted to the wireless launch circuit. The output signals of the wireless launch circuit are transmitted to the wireless receiving alarm circuit. The liquid measurement and control device detects liquid level signals of liquid through an exploring electrode and a capacitor to enable the oscillating circuit to work or stop, judges whether the phenomenon of an over-low water level exists, and sends alarm signals when the water level is over low.

Description

A kind of liquid measure and control device

Technical field

The utility model relates to a kind of measure and control device, particularly be a kind of liquid measure and control device of water pumper.

Background technology

Water pumper is the water supply machinery in fields such as farmland pouring, domestic water or process water, when water pumper in pump process, as because of the water level in the pond low excessively; Will cause water pumper idle running; When surpassing the regular hour, the motor of water pumper will generate heat, and finally can cause the water pumper coil to burn out.

The utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of liquid measure and control device of water pumper is provided.

The utility model solves the technical scheme that its technical matters adopted: a kind of liquid measure and control device; Comprise level detection circuit, oscillatory circuit, radio transmitter and wireless receiving warning circuit; The output signal of said level detection circuit is sent to radio transmitter through oscillatory circuit control, and the output signal of said radio transmitter is sent to the wireless receiving warning circuit.

Preferably, said level detection circuit is made up of work to the last minute exploring electrode B and low water spot exploring electrode A of water, and work to the last minute exploring electrode B and low water spot exploring electrode A of said water is connected across the two ends of capacitor C 2.

Preferably, said oscillatory circuit is made up of resistance R 1, the R2 that 555 time base circuit IC1 and output terminal thereof connect, and said resistance R 1, R2 are parallelly connected with capacitor C 2.

Preferably, the resistance R 3 that said radio transmitter is connected by 555 time base circuit IC1 output terminals successively, transistor Q1 and FDD-5 transmitter module IC3 constitute, and the antenna TX of said FDD-5 transmitter module IC3 is the modulated frequency electromagnetic waves of emission externally.

Preferably, said wireless receiving warning circuit is made up of LED 1 and the loudspeaker Y that JDD-5 receiver module IC2 and output terminal thereof connect.

Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: the utility model is surveyed the liquid level signal of liquid through exploring electrode and electric capacity, makes oscillatory circuit work or stops, and has judged whether water level phenomenon on the low side; And when water level is on the low side, send alerting signal.

Description of drawings

Fig. 1 is the frame assumption diagram of the utility model;

Fig. 2 is the circuit theory diagrams of the utility model;

Fig. 3 is the circuit theory diagrams of the utility model wireless receiving warning circuit.

Embodiment

Like Fig. 1, shown in Figure 2; A kind of liquid measure and control device of the utility model; Comprise level detection circuit 1, oscillatory circuit 2, radio transmitter 3 and wireless receiving warning circuit 4; The output signal of said level detection circuit 1 is sent to radio transmitter 3 through oscillatory circuit 2 controls, and the output signal of said radio transmitter 3 is sent to wireless receiving warning circuit 4.

Said level detection circuit 1 is made up of work to the last minute exploring electrode B and low water spot exploring electrode A of water; Work to the last minute exploring electrode B and low water spot exploring electrode A of said water is connected across the two ends of capacitor C 2; Said oscillatory circuit 2 is made up of resistance R 1, the R2 that 555 time base circuit IC1 and output terminal thereof connect; Said resistance R 1, R2 are parallelly connected with capacitor C 2; The resistance R 3 that said radio transmitter 3 is connected by 555 time base circuit IC1 output terminals successively, transistor Q1 and FDD-5 transmitter module IC3 constitute, and the antenna TX of said FDD-5 transmitter module IC3 is the modulated frequency electromagnetic waves of emission externally.

When liquid level did not have rapier, capacitor C 2 was equivalent to by short circuit, and 555 time base circuit IC1 can't vibrate, and the 3rd pin of 555 time base circuit IC1 is output as low level signal, can not make FDD-5 transmitter module IC3 triggering and conducting.

In the time of under liquid level is in rapier; 555 time base circuit IC1 are because of satisfying the oscillating condition starting of oscillation, and the 3rd pin output trigger pip of 555 time base circuit IC1 makes transistor Q1 conducting through resistance R 3; Be input to the 2nd pin of FDD-5 transmitter module IC3; And to deliver to its 3rd pin be modulation signal input end CP, and the high-frequency signal of emission is modulated, and antenna TX i.e. the external modulated frequency electromagnetic waves of emission.

As shown in Figure 3; Said wireless receiving warning circuit 4 is made up of LED 1 and the loudspeaker Y that JDD-5 receiver module IC2 and output terminal thereof connect; The 4th pin audio signal output end CPA of JDD-5 receiver module IC2 directly drives common electrical dynamic formula loudspeaker Y sounding, and its 2nd pin data output end output high level makes LED 1 get electroluminescence simultaneously, and expression receives the alerting signal of extension set; Water level lack of water is described, should be taked corresponding measure.

An above-described preferred embodiment that is merely the utility model can not limit the scope that the utility model is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. liquid measure and control device; It is characterized in that: comprise level detection circuit (1), oscillatory circuit (2), radio transmitter (3) and wireless receiving warning circuit (4); The output signal of said level detection circuit (1) is sent to radio transmitter (3) through oscillatory circuit (2) control, and the output signal of said radio transmitter (3) is sent to wireless receiving warning circuit (4).

2. liquid measure and control device according to claim 1; It is characterized in that: said level detection circuit (1) is made up of work to the last minute exploring electrode B and low water spot exploring electrode A of water, and work to the last minute exploring electrode B and low water spot exploring electrode A of said water is connected across the two ends of capacitor C 2.

3. liquid measure and control device according to claim 2 is characterized in that: said oscillatory circuit (2) is made up of resistance R 1, the R2 that 555 time base circuit IC1 and output terminal thereof connect, and said resistance R 1, R2 are parallelly connected with capacitor C 2.

4. liquid measure and control device according to claim 3; It is characterized in that: the resistance R 3 that said radio transmitter (3) is connected by 555 time base circuit IC1 output terminals successively, transistor Q1 and FDD-5 transmitter module IC3 constitute, and the antenna TX of said FDD-5 transmitter module IC3 is the modulated frequency electromagnetic waves of emission externally.

5. liquid measure and control device according to claim 1 and 2 is characterized in that: said wireless receiving warning circuit (4) is made up of LED 1 and the loudspeaker Y that JDD-5 receiver module IC2 and output terminal thereof connect.