CN203453076U

CN203453076U - Water pump automatic controller

Info

Publication number: CN203453076U
Application number: CN201320430639.4U
Authority: CN
Inventors: 刘德林
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2014-02-26
Anticipated expiration: 2023-07-11

Abstract

The utility model provides a water pump automatic controller. The water pump automatic controller comprises a timer 7 and a liquid level switch 1. The timer is composed of a shell and a control circuit in the shell, and the timer is connected with a water pump 10. The liquid level switch comprises a water tower liquid level switch and a well liquid level switch. The water tower liquid level switch and the well liquid level switch are installed on a water tower 9 and a well 11 respectively and connected with the timer through wires. A microswitch is turned on or turned off through the stress change of a floater 5 to control a circuit of the timer, so that the water pump can be started or shut down. The water pump automatic controller has the advantages of being simple in structure, low in manufacturing cost, convenient to install, high in reliability, large in control range, long in service life and especially suitable for a household water pump. The timer is adopted, so that the water pump can be independently controlled to shut down at regular time, the timer can be connected with one or two or three liquid level switches for combination use, the functions of automatic water pumping and shutdown when the well is full of or short of water of the water pump are achieved, and the water pump automatic controller is flexible and easy to use and easy to popularize.

Description

Automatic controller for water pump

Technical field

The utility model relates to a kind of new device of automatic pump, includes timer and liquid-level switch two-part, a kind of controller of practicable timing controlled and Automatic Control.

Background technique

At present, existing water pump controller has a variety of, mainly contain probe type level controller, float type level controller, dry-reed level controller, ball float type level controller, also useful mechanical timer.Probe type level controller is installed probe more complicated, and pops one's head in and want running check clean, otherwise affects sensitivity; And float type level controller output capacity is little, the process of ball float transition is slow, therefore easily damages; Dry-reed level controller price is enough expensive, easily controls malfunctioning; Ball float type level controller is put in water tower because elastic cable paper is arranged in ball float, and floater seal is bad or aging, may bring potential safety hazard and fault; And mechanical timer is to make of a plurality of small gears, during timing, need all need to turn knob with hand at every turn, easily causes bad timing, and gear easily damages, and the life-span is not long.

Model utility content

The utility model provides a kind of can regularly can realize the automatic controller for water pump of Automatic Control again, to solve the deficiency in above background technique.

In order to achieve the above object, the designed automatic controller for water pump of the utility model is divided into two-part: the one, and timer, comprises the control circuit in housing and housing; The 2nd, liquid-level switch, comprises water tower liquid-level switch and well liquid-level switch.

The housing of described timer is provided with power switch, Timing knob, start button, stop button, liquid level control switch, power supply indicator, run indicator.

Control circuit in described timer shell is provided with transformer, commutation diode group, CD4541 ic chip, three relays, several resistance and electric capacity, reference diode, potentiometer, diode, triode, two four wiring bases.In three relays, the relay K 3 of output use adopts high-current relay to need to guarantee pump operation.

Described liquid-level switch is comprised of switch capsule, sensitive switch, lever, spring, float and three wiring bases; Switch capsule is made by plastic cement, and the convenient installation of hanging hole is arranged at top; Three pin (C, NO and NC) of sensitive switch respectively pick out a lead-in wire, and three different lead-in wires of color are connected in three wiring bases outside switch capsule.

Described water tower liquid-level switch is identical with well liquid level switch structure; Water tower liquid-level switch, its wiring is common port (C) and the normal beginning (NO) that connects sensitive switch; Described well liquid-level switch, its wiring is common port (C) and the normal-closed end (NC) of sensitive switch.

Described float can be designed to bottle shape or well-bucket shape, simple also can replace with common little mineral water bottle, fills that to add fritter stone to make float can sink to water after water interior, in order to avoid drift about at the water surface.

The utility model has the advantages that: 1, simple in structure, fabricating cost is low, easy for installation, highly sensitive, and reliability is strong, and control range is large, and long service life is especially applicable to piston type domestic water pump; 2, power supply that liquid-level switch connects is direct current 12V, very safe; 3, switch capsule built-in spring, can increase reliability and the protection to sensitive switch that switch is controlled; 4, the liquid-level switch of the utility model design, can used aloned, also can two or three be used in combination, and can realize water pump automatic pumping, and water is completely shut down, and can also carry out well excessive low water level protection, prevents from burning out water pump; 5, for water tower, story height is installed, circuit is through the user of the inconvenient cabling of too many floor, also timer can be installed separately, only need according to the time of operation usually, timing knob to be mixed up, during water tower lack of water, gently press start button, do not need again between timing easy-to-operat.

Accompanying drawing explanation

Fig. 1 is the control circuit schematic diagram of timer;

Fig. 2 is the structural representation of liquid-level switch;

Fig. 3 is the utility model work schematic diagram;

In figure, the 1st, switch capsule, the 2nd, lever, the 3rd, spring, the 4th, sensitive switch, the 5th, float, 6 is three wiring bases, the 7th, timer, the 8th, Timing knob, the 9th, water tower, the 10th, water pump, the 11st, well.

Embodiment

With reference to accompanying drawing 1,220V power supply is from wiring base S1, S2 input, and transformer T input end is received on live wire access power switch SH1 Hou Zai mono-tunnel, and relay K 3 contacts are received on another road, and wiring base water pump end L1 is received in another contact of relay K 3; Transformer T input end is received on zero line one tunnel, and wiring base water pump end L2 is received again through protective tube F in another road; Receive the circuit step-down of transformer T and carry out bridge rectifier by commutation diode D1～D4, output 12V low-voltage dc power supply.

When not connecing liquid-level switch, level switch SH2 is closed, press start button SB1, now, the electric current process relay K 1 and the K3 coil that from diode D1～D4 positive pole, send, then get back to commutation diode negative pole through start button SB1, level switch SH2, normally closed stop button SB2, make relay K 1 and K3 make contact, wiring base L1 energising, starting mode of pump; Unclamp start button SB1 after-current and through relay K 1 and K3 coil, K2 contact, K1 contact, switch S H2, button SB2, to diode D1～D4 negative pole, form loop from diode D1～D4 positive pole, therefore water pump remains in operation; And now, another road electric current sending from diode D1～D4 positive pole enters IC through diode D5, resistance R 5, and receive low level end by resistance R 4, because IC9 pin connects low level, IC8 pin output low level, triode VT cut-off, relay K 2 coil no current processes, therefore its normally-closed contact is closed.

CD4541IC is programmable Timer intergrated circuit, the resistance of adjusting potentiometer RP can regulate timing, after circuit timing arrives, and IC8 pin output high level, triode VT conducting, relay K 2 coil electricities, contact tripping, current cut-off, relay K 1 and K3 coil blackout, contact tripping, the output of wiring base L1 end no current, water pump shuts down.

In pump operation process, when needs emergent stopping, only normally closed stop button SB2 need be clicked gently, the power-off at once of whole loop, the output of wiring base L1 end no current, water pump shuts down.

With reference to accompanying drawing 2, liquid-level switch picks out three lead-in wire to three wiring bases from switch pin, and wherein C is common port, and NO is Chang Kaiduan, and NC is normal-closed end, and C and NO form normal open circuit, and C and NC form normally-closed circuit, and a liquid-level switch only picks out wherein set of circuits.

With reference to accompanying drawing 3, on water tower, lift two liquid-level switches, two floats are placed in respectively the high/low liquid level of water tower, a three-core conductor are received respectively to Chang Kaiduan and the common port of two switches, and wherein a common wire connects two ports; The other end of three-core conductor is received a, b and the c position on timer wiring base, and wherein, b connects common wire, and a connects the liquid-level switch of low level float, and c connects the liquid-level switch of high-order float.

A liquid-level switch of place lifting above well, float sinks to the position slightly higher than water pump suction port, two core wires is received to normal-closed end and the common port of switch, and the other end of two core wires is received c and the d position on timer wiring base.

With reference to Fig. 1 and Fig. 3, liquid level control switch SH2 on timer is disconnected, when the water level of water tower is during lower than low level float, under Action of Gravity Field, high-order float and low level float be pull lever Compress Spring respectively, makes two often to open sensitive switch closure, starts pump operation.

When water tower level is during higher than low level float and lower than high-order float, high-order float is still closed, and low level float is subject to floating function, pulling force reduces, spring jack-up lever, its switch is disconnected, but the timer time of now setting is not to (generally mixing up in advance), therefore water pump still runs well by the time of at least taking out a full water tower water.

When water tower level is during higher than high-order float, high-order float is in the effect of buoyancy, and pulling force reduces, and spring jack-up lever disconnects its switch, and circuit cut-off, shuts down water pump.

In pump operation process, when well water level is during lower than well float, under Action of Gravity Field, float pull lever Compress Spring, disconnects normally closed sensitive switch, and circuit cut-off, shuts down water pump.

With reference to Fig. 1 and Fig. 3, if being only installed, a liquid-level switch to realize water pump Automatic Control, only need on water tower, fill a liquid-level switch, float is placed in low level, normal open circuit connects a and b position, by being regularly transferred to the time of taking out full water tower water that approximately approaches, liquid level control switch SH2 is closed; Water tower level starting mode of pump during lower than float, has arrived timing water pump and has automatically stopped.

If only fill two liquid-level switches on water tower, wiring is connected on a, b and d 3 points (b is common point), and liquid level control switch SH2 disconnects, and can realize water tower lack of water starting mode of pump, and water is completely shut down.

If respectively fill a liquid-level switch on water tower and well, wiring is connected on a, b and d 3 points (b is common point), and liquid level control switch SH2 disconnects, and can realize water tower lack of water starting mode of pump, regularly shuts down or the shutdown of well lack of water.

Claims

1. an automatic controller for water pump, it comprises timer and liquid-level switch; It is characterized in that: described timer is comprised of the control circuit in housing and housing, timer connects pump motor; Described liquid-level switch comprises water tower liquid-level switch and well liquid-level switch, is arranged on water tower and well, by wire, is connected with timer.

2. automatic controller for water pump according to claim 1, it is characterized in that: on the housing of described timer, have power switch (SH1), Timing knob (7), start button (SB1), stop button (SB2), liquid level control switch (SH2), power supply indicator (HG), run indicator (HR); On control circuit in described timer shell, there is transformer (T), commutation diode group (D1～D4), CD4541 integrated package (IC), three relay (K1, K2, K3), resistance (R1, R2, R3, R4, R5), electric capacity (C1, C2, C3, C4, C5, C6), potentiometer (RP), diode (D5, D6), reference diode (VS), triode (VT) and two four wiring bases form.

3. automatic controller for water pump according to claim 1, is characterized in that: described liquid-level switch is by switch capsule (1), lever (2), spring (3), sensitive switch (4), float (5), three wiring bases (6) form; Three pin (C, NO and NC) of sensitive switch (4) respectively pick out a lead-in wire, and three different lead-in wires of color are connected in outer three wiring bases (6) of switch capsule (1).

4. according to the automatic controller for water pump described in claim 1 or 3, it is characterized in that: described water tower liquid-level switch is identical with well liquid level switch structure; Water tower liquid-level switch, its wiring is common port (C) and the normal beginning (NO) that connects sensitive switch; Described well liquid-level switch, its wiring is common port (C) and the normal-closed end (NC) of sensitive switch.

5. according to the automatic controller for water pump described in claim 1 or 3, it is characterized in that: described float is by plastic production, be designed to bottle shape or well-bucket shape, also available common little mineral water bottle replaces, after filling water, add fritter stone that float can be sunk in water, in order to avoid drift about at the water surface.