CN2751021Y

CN2751021Y - Drinking water sterilizer

Info

Publication number: CN2751021Y
Application number: CN 200420102717
Authority: CN
Inventors: 陈生长
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-10
Filing date: 2004-12-10
Publication date: 2006-01-11
Anticipated expiration: 2014-12-10

Abstract

The utility model discloses a drinking water sterilizer, which comprises a control circuit and a load, wherein the switching of the power supply of the load is controlled by the control circuit. The utility model is characterized in that the control circuit comprises a long and short time control circuit, the output terminal of which is connected with the input terminal of a four frequency division circuit by an oscillating circuit and the output terminal of the four frequency division circuit is connected with a mode select circuit via a time selection switch. The output terminal of the mode select circuit controls an execution circuit via a first drive circuit and a second drive circuit, and the switching of the power supply of the load of the sterilizer is controlled by the execution circuit. Because the utility model is provided with a plurality of time selection modes, users can conveniently select sterilizing time according to the differences of the water quality. The drinking water sterilizer can be widely suitable for the occasions such as the field operation or the travel, etc.

Description

Disinfector for drinking water

Technical field

The utility model relates to a kind of drinking water treatment equipment, particularly a kind of disinfector for drinking water.

Background technology

Society from now on, human existence will run into tap water, and air and food are by contaminated major test.In order to solve this Three Difficult Issues, people have carried out unremitting effort.Wherein, when people's operation in the open air or tourism, it is particularly important to drink the water that meets national standard.But the common residing place of people is at no tap water facility, and can not transport standard compliant tap water again the FCL car load, even if so also strengthened the burden and the cost of transportation, also can't resolve the supply problem of long tap water, situation about having can not be supplied with from the rear.If carry out water treatment with chemicals, equally also there is the residual problem of chemicals, go down for a long time and will inevitably people's health be exerted an adverse impact.

Summary of the invention

In order to solve the above problems, the purpose of this utility model is to provide a kind of can regulate disinfecting time, disinfector for drinking water easy to use.

The technical scheme that the invention for solving the technical problem adopted is:

Disinfector for drinking water, comprise that pilot circuit and controlled circuit control the load of its on/off, it is characterized in that: comprise the length time control circuit in the pilot circuit, the output terminal of length time control circuit is connected with the input terminus of divide by four circuit by oscillatory circuit, the output terminal of divide by four circuit connects the working mode selection circuit by the selection of time switch, the output terminal of mode of operation circuit is controlled executive circuit by first driving circuit, second driving circuit, by executive circuit the power supply of the load of sterilizer is carried out break-make control.

The beneficial effects of the utility model are: owing to be provided with multiple selection of time mode in this device, can make the user select the disinfectant time according to the difference of water quality very easily.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a schematic block circuit diagram of the present utility model;

Fig. 2 is the structured flowchart of disinfector for drinking water;

Fig. 3 is the physical circuit schematic diagram of embodiment of the present utility model;

Fig. 4 is the physical circuit schematic diagram of another embodiment of the present utility model.

Embodiment

With reference to Fig. 1, disinfector for drinking water, comprise that pilot circuit and controlled circuit control the load of its on/off, comprise the length time control circuit in the pilot circuit, the output terminal of length time control circuit is connected with the input terminus of divide by four circuit by oscillatory circuit, the output terminal of divide by four circuit connects the working mode selection circuit by the selection of time switch, the output terminal of mode of operation circuit is controlled executive circuit by first driving circuit, second driving circuit, by executive circuit the power supply of the load of sterilizer is carried out break-make control.

In addition, between selection of time switch and working mode selection circuit, be equipped with eight input nand gate circuit, be used to prolong the periodic time.

With reference to Fig. 2, the load of being controlled by pilot circuit comprises water pump, air pump and ozonizer.

With reference to Fig. 3, wherein, select circuit to comprise switch SW 1 and adjustable resistance P1 during length, vibrator is by time-base integrated circuit NE555, resistance R 4, R5 and capacitor C 6, C7, the astable multivibrator that C8 forms, 4 frequency dividing circuits comprise ic chip 3, eight input nand gate circuit comprise ic chip 4, the selection of time switch is the switch SW 2 that is connected between 4 frequency dividing circuits and the eight input nand gate circuit, the working mode selection circuit is to comprise switch SW 3, first driving circuit comprises triode Q3, second driving circuit comprises triode Q4 and triode Q5, Q6, executive circuit comprise the relay J 2 of the on/off of control load.

Forced resetting end 4 pin of time-base integrated circuit NE555 are controlled by the output of IC4, when current potential is higher than 1V, and time-base integrated circuit NE555 starting of oscillation.When this pin voltage was lower than 0.4V, timing process was interrupted, and time-base integrated circuit NE555 turns back to non-triggering state.The wide shortcoming of first ratio of pulse length to the total cycle length succeeding impulse when overcoming starting of oscillation, the negative terminal of capacitor C 6 or C7 is connected to control end 5 pin, make circuit rigidly connect when logical initial defeated be 0 level, make pedestal pulse wide.The cycle of vibration pedestal pulse: T=0.693 (R1+R2+P1) C6 (or C7), it is 1 minute that adjusting P1 makes the cycle.

The effect of triode Q1 (9012): when the contact of J1-1 is in when often opening, triode Q1 ends, and Vcc charges to capacitor C 6 (or C7) C8 by resistance R 3, R4, P1.Time-base integrated circuit NE555 starting of oscillation when level is higher than 1V, when being lower than 0.4V, time-base integrated circuit NE555 failure of oscillation.Go round and begin again, become astable multivibrator.

Divide by four circuit comprises ic chip 3, this ic chip 3 is counter CD4518, it is a doubinary system counter, output terminal behind 4 frequency divisions 6 pin are connected to the input terminus NE210 pin of second 4 frequency counter, promptly be cascaded into 8 grades of frequency-halving circuits, Q1 ~ Q8 finishes 2,4,8,16,32,64,128,256 minutes timing at its output terminal.Geng Changshijian timing if desired as long as capacitor C 6 is become capacitor C 7, promptly increases the duration of charging, readjusts period of oscillation, just can obtain the timing of long time delay.Eight input terminus Sheffer stroke gate CD4068 and eight little tumbler switches are combined into the timing control circuit that presets in 1 ~ 255 minute scope, can preset the number of minutes arbitrarily.Clear terminal 7 pin of CD4518,15 pin are connected on the connection mid point of capacitor C 9, resistance R 6, when just adding power supply, because the voltage on the capacitor C 9 can not suddenly change, 7 pin, 15 pin are noble potential, make the counter reset, circuit is in keeps or add count status.When preset time arrives, the output terminal of ic chip 3 output high level " 1 ", the input terminus of ic chip 4 all is high level " 1 ", make the output of eight input terminus Sheffer stroke gate CD4068 transfer lower level " 0 " to, feedback adds to the reset terminal (4 pin) of IC2, and the IC2 vibration is stopped, and timing finishes.Simultaneously, make to be connected on the resetting in Q2 (9012) conducting of end of IC2, high level " 1 " adds to the clear terminal of IC3, guarantees that its clear terminal is a noble potential, waits for counting next time.

When rigidly connecting energize, output terminal 13 pin of IC4 are high level " 1 " at ordinary times, triode Q3 conducting, just (height) current potential adds to the base stage of triode Q3 and Q5, Q6 (for multiple-unit tube), triode Q5, Q6 conducting, and relay J 2 gets electric adhesive, its contact is connected each load, makes each loaded work piece.When preset time one arrives, the output terminal 13 pin output low levels " 0 " of ic chip 4 are ended triode Q3, and triode Q5, Q6 also end, and relay J 2 dead electricity discharge its contact, make the load outage and quit work.

SW3 in the circuit is if be allocated to circulation shelves, then the output of triode Q3 control triode Q5, Q6 and relay J 2 make ic chip 2 not failure of oscillation swing, ic chip 3 does not stop counting, timing one is arrived, and turn-offs the power supply of controlled device, starts again then, circulation is endlessly.Switch SW 3 is promptly carried out disposable timing if be allocated to " single step " position, and preset time one arrives, triode Q4 conducting, and relay J 1 adhesive, its contact J1-1 connects, and makes 2 pin of ic chip 2 be clamped at definite value, time-base integrated circuit NE555 failure of oscillation.Ic chip 4 output is high level " 1 ", and triode Q3, Q5, Q6 are all conducting, and relay J 2 is just worked always, up to the people for till cutting off the electricity supply.

Certainly,,, can save eight input nand gate circuit, be about to ic chip 3 and directly pass through system selector switch SW2 and be connected with triode Q3 and get final product with reference to Fig. 4 if this sterilizer need not to prolong the longer time.

Claims

1, disinfector for drinking water, comprise that pilot circuit and controlled circuit control the load of its on/off, it is characterized in that: comprise the length time control circuit in the pilot circuit, the output terminal of length time control circuit is connected with the input terminus of divide by four circuit by oscillatory circuit, the output terminal of divide by four circuit connects the working mode selection circuit by the selection of time switch, the output terminal of mode of operation circuit is controlled executive circuit by first driving circuit, second driving circuit, by executive circuit the power supply of the load of sterilizer is carried out break-make control.

2, disinfector for drinking water according to claim 1 is characterized in that: be provided with eight input nand gate circuit between selection of time switch and working mode selection circuit, be used to prolong the periodic time.

3, disinfector for drinking water according to claim 1 is characterized in that: the load by pilot circuit control comprises water pump, air pump and ozonizer.