CN201421563Y

CN201421563Y - Semi-automatic water level controller

Info

Publication number: CN201421563Y
Application number: CN2009200811114U
Authority: CN
Inventors: 王升国
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-22
Filing date: 2009-05-22
Publication date: 2010-03-10
Anticipated expiration: 2019-05-22

Abstract

The utility model discloses a semi-automatic water level controller comprising a control circuit, an AC relay, a conversion circuit, a water level detection circuit, a DC relay, a probe, a pump and awater reservoir. The control circuit is connected with the pump through the normally opened contact of the AC relay, the water discharge pipe of the pump is connected into the water reservoir, the control circuit is respectively connected with the conversion circuit, the water level detection circuit and the probe through one of the normally opened contacts of the AC relay, and the probe is arranged in the water reservoir. The coil of the DC relay is connected with the water level detection circuit, and the normally closed contract of the DC relay is connected with the control circuit. The probe and the water level detection circuit transmit signals in double directions. The utility model has the advantages of no need of being in a work state for a long time, energy saving, low cost, longservice life, small volume of the probe adopted for detecting water level and simple installation. The controller is particularly suitable for the use of broad countries.

Description

Semi-automatic water level controller

Technical field:

The utility model relates to a kind of water level controller, specifically is a kind of semi-automatic water level controller, is particularly suitable for the rural area.

Background technology:

Along with the progressively development of science and technology, the water level control technology is widely used in the middle of resident's the daily life.The water level control technology of existing main flow is full-automatic and float-ball type, and is when they are used in the relatively low rural area of living standard, not ideal.During the full-automatic water level controller is for a long time in running order, cause electric energy loss, unfavorable energy-conservation, the cost height, electronic component is short following serviceable life in the influence of factors such as electrical network instability; The detector volume of floating ball type water level controller is big, and complexity is installed, and profile is attractive in appearance inadequately, and inconvenience is applied.

Summary of the invention:

The purpose of this utility model provides the little and energy-conservation semi-automatic water level controller of a kind of detecting head volume.

The technical scheme that this practicality is adopted is:

A kind of semi-automatic water level controller, comprise control circuit, AC relay, change-over circuit, water level detection circuit, DC relay, probe, water pump and cistern, described control circuit connects water pump by the normally opened contact of AC relay, the drainpipe of water pump inserts cistern, control circuit connects change-over circuit, water level detection circuit and probe successively by a normally opened contact of AC relay, and probe is arranged in the cistern; The normally closed contact that the coil of described DC relay connects water level detection circuit, DC relay is connected with control circuit; Described probe and water level detection circuit transmitted in both directions signal.

The input end of described control circuit is connected with fuse.

Be connected with power light on the described fuse.

Be connected with the strange land control circuit on the described control circuit.

The stop button that has the outage forced on the described control circuit.

Has start button on the described control circuit.

Be connected with relay indicating light on the described change-over circuit.

Described cistern is a kind of in water vat, pond or the water tower.

Described probe is the probe of stainless steel metal material.

The beneficial effects of the utility model are: needn't be in running order for a long time, energy-conservation, cost is low, and long service life, and adopt the probe sensed water level, and probe size is little, installation is simple, and good looking appearance is particularly suitable in the rural area wide popularization and application.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is further described.

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

Fig. 2 is a kind of structural representation of the present utility model.

Fig. 3 is a kind of scheme of installation of the present utility model.

Fig. 4 is a kind of circuit diagram of the present utility model.

Embodiment:

Referring to Fig. 1～Fig. 4: the utility model comprises control circuit, AC relay KM1, change-over circuit, water level detection circuit, DC relay KM2, probe 7, water pump M and cistern 8.Control circuit is connected water pump M by the normally opened contact KM1-1 of AC relay KM1 with KM1-2, feed pump M provide power supply, the drainpipe of water pump M inserts in the cistern 8, control circuit connects change-over circuit, water level detection circuit and probe 7 successively by the normally opened contact KM1-1 of AC relay KM1, provide voltage to them, probe 7 is arranged in the cistern 8, and this probe 7 is the probe of stainless steel metal material.The normally closed contact that the coil of DC relay KM2 connects water level detection circuit, DC relay KM2 is connected with control circuit.Probe 7 and water level detection circuit transmitted in both directions signal.This cistern 8 is a kind of in water vat, pond or the water tower.In order to prevent that control circuit and load end SW3 short circuit from causing unnecessary loss, be connected with fuse FR at the input end of control circuit, this fuse FR is the protective tube of 10A.Can also on fuse FR, connect power light 4, on change-over circuit, connect relay indicating light 5, so that more directly perceived when manipulating, clear.The stop button 6 that has the outage forced on the control circuit prevents from that control circuit from breaking down can't quit work.Have start button 2 on the control circuit, press this button and make the energising of this water level controller, enter duty.

Power light 4 of the present utility model, relay indicating light 5, start button 2 and stop button 6 are arranged on housing 3 panels, housing 3 both sides are provided with fixed orifice 1, the box body 9 of fuse FR is arranged on the bottom of housing 3, also is provided with the port SW2 of strange land control circuit in the bottom of housing 3.

The user can also connect the strange land control circuit on control circuit of the present utility model for convenience, makes the user just can control pondage at a distance such as courtyard or roof like this under home-confined situation.

Principle of work of the present utility model is: the SW1 termination is gone into civil power live wire L and civil power zero line N, fuse FR and control circuit (control circuit comprises start button S1, stop button S2 and DC relay KM2) energising, power light LED1 lights simultaneously, press start button S1, the normally opened contact KM1-1 of AC relay KM1 and KM1-2 closure, power supply is exported on the pump motor M of load end, and pump motor M gets electric work; Change-over circuit (change-over circuit comprises transformer T, diode D1 and filter capacitor C1) gets electric work simultaneously, through diode D1 and filter capacitor C1, get the 12V direct supply after making half-wave rectification filtering, this moment, relay indicating light LED2 lighted, and represented that this water level controller enters duty; And give DC relay KM2 power supply at the same time and provide high level+12V to water level testing circuit (water level detection circuit comprises diode D2, DC relay KM2, one-way SCR Q, capacitor C 2 and current-limiting resistance R3) and probe SW4.When the water level in the cistern 8 rises to the designated water level value, high level+12V provides triggering level (this one-way SCR Q can replace for triode) for one-way SCR Q by the water conducting through current-limiting resistance R3, the coil electricity of one-way SCR Q conducting this moment DC relay KM2, the normally closed contact of DC relay KM2 is disconnected, AC relay KM1 coil blackout, its normally opened contact KM1-1 and KM1-2 are disconnected, make water pump recover off-position, quit work, in this while change-over circuit dead electricity, water level detection circuit quits work, and circuit restPoses.Wherein R1, R2 are the current-limiting resistances of pilot lamp LED1 and LED2, SW2 is a strange land control circuit port, diode D2 is the voltage absorber element of DC relay KM2 outage reversed peak, capacitor C 2 is that the level equalization of input control signal can not be suddenlyd change among a small circle, and is more stable when making circuit start and operation.As run into control circuit and break down, in the time of can't quitting work, press the button S2, make this water level controller force outage.

The utility model only just enters duty after startup, when water level arrived the detection position, probe 7 output control signals made control circuit disconnect primary power, and this water level controller recovers initial halted state.A large amount of shortenings the working time of electronic component, thereby guaranteed its serviceable life.

Claims

1, a kind of semi-automatic water level controller, it is characterized in that: comprise control circuit, AC relay, change-over circuit, water level detection circuit, DC relay, probe, water pump and cistern, described control circuit connects water pump by the normally opened contact of AC relay, the drainpipe of water pump inserts cistern, control circuit connects change-over circuit, water level detection circuit and probe successively by a normally opened contact of AC relay, and probe is arranged in the cistern; The normally closed contact that the coil of described DC relay connects water level detection circuit, DC relay is connected with control circuit; Described probe and water level detection circuit transmitted in both directions signal.

2, semi-automatic water level controller according to claim 1, it is characterized in that: the input end of described control circuit is connected with fuse.

3, semi-automatic water level controller according to claim 2 is characterized in that: be connected with power light on the described fuse.

4, semi-automatic water level controller according to claim 1 and 2 is characterized in that: be connected with the strange land control circuit on the described control circuit.

5, semi-automatic water level controller according to claim 1 and 2 is characterized in that: the stop button that has the outage forced on the described control circuit.

6, semi-automatic water level controller according to claim 1 and 2 is characterized in that: have start button on the described control circuit.

7, semi-automatic water level controller according to claim 1 is characterized in that: be connected with relay indicating light on the described change-over circuit.

8, semi-automatic water level controller according to claim 1 is characterized in that: described cistern is a kind of in water vat, pond or the water tower.

9, semi-automatic water level controller according to claim 1 is characterized in that: described probe is the probe of stainless steel metal material.