CN2741084Y

CN2741084Y - Automatic level controller

Info

Publication number: CN2741084Y
Application number: CN 200420113941
Authority: CN
Inventors: 丁晨芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-30
Filing date: 2004-10-30
Publication date: 2005-11-16
Anticipated expiration: 2014-10-30

Abstract

The utility model discloses an automatic level controller, comprising a floating ball and an AC contactor. The inner of the floating ball is fixedly provided with a magnetic block, and the floating ball is provided with a through hole. The floating ball is on a level control pipe with sealed top and bottom by movable jacket. The top of the level control pipe is fixedly provided with a constant closed type dry reed pipe, and the bottom is fixedly a constant opened type dry reed pipe. The constant closed type dry reed pipe and the constant opened type dry reed pipe are connected with the AC contactor by a connecting wire. The elevation and the subsidence of the level drive the floating ball to freely slide up-and-down on the level control pipe in order to control the dry reed pipe on and off and furthermore to control the AC contactor closure and disconnection, thus the automatic level controller can efficiently control the load duty. The utility model has simple structure, low cost, low malfunction rate, and the automatic level controller is durable, easy to install and use. For civil use the automatic level controller is suitable for controlling the water level of solar water heater and tank on roof, and for industry use the automatic level controller is suitable for controlling the level of a filter bed, a cleaning tank, a fermenting tank and a boiler, etc.

Description

The automatic control of liquid device

(1), technical field:

The utility model belongs to electrical control gear, relates in particular to a kind of automatic control of liquid device of automatic controlling liquid position.

(2), background technology:

At present, general rural households are installed in the water heater on the roof, and liquid or water mostly adopt manual controlling liquid to enter in the containers such as the filtering ponds of industrial usefulness, service sink and fermentation vat, or adopt device for mechanical control feed liquor such as ball float.Manually during the control water inlet, very inconvenient, and human factor is very important, but because the frequent lack of water of human negligence meeting, cause the equipment lack of water sometimes and damage, also influenced product quality.When water inlet machinery control, the bad control of flooding time, when for example using solar water heater, because machinery controls such as ball float are uncertain, water heater can frequent water inlet, can cause the water temperature instability, or frequent lack of water and damage endothermic tube.

(3), summary of the invention:

The purpose of this utility model is to provide a kind of simple in structure, easy to install, a kind of automatic control of liquid device of entering of controlling liquid automatically.

For achieving the above object, a kind of automatic control of liquid device of the utility model comprises ball float and A.C. contactor, the ball float internal fixation is provided with a magnetic patch, ball float is provided with through hole, ball float is actively set on the liquid level control tube of upper and lower side sealing by through hole, the lower end of said liquid level control tube is fixed on the container bottom that liquid is housed, and the upper end in the liquid level control tube is fixed with a normally closed type tongue tube, and the lower end is fixed with a tongue tube open in usual; One end of normally closed type tongue tube is connected with lead with the coil terminals A1 of A.C. contactor, and the other end is connected with lead with the switch contact B1 open in usual of A.C. contactor; One end of tongue tube open in usual is connected with lead with the coil terminals A1 of A.C. contactor, and the other end is connected with lead with the normally closed type switch contact C1 of A.C. contactor; The normally closed type switch contact C1 ' of A.C. contactor is connected with lead with switch contact B1 ' open in usual, the B2 ' of A.C. contactor; The switch contact B2 ' open in usual of A.C. contactor, B3 ', B4 ' link to each other with external AC power supply, link to each other with load with the corresponding switch contact B2 open in usual of switch contact B2 ' open in usual, B3 ', the B4 ' of A.C. contactor, B3, B4, another coil terminals A1 ' on the A.C. contactor is connected with lead with switch contact B3 ' open in usual.

Be connected in series a K switch between normally closed type switch contact C1 ' on the said A.C. contactor and the coil terminals A1 of A.C. contactor.

Said ball float and liquid level control tube are to be made by nonmagnetic substances such as plastics or copper.

In technique scheme, ball float by a built-in magnetic patch, be actively set on the liquid level control tube of upper and lower side sealing, upper and lower side in the liquid level control tube is fixed with normally closed type tongue tube and tongue tube open in usual respectively, and the normally closed type tongue tube is connected with lead with A.C. contactor with tongue tube open in usual, by the lifting of liquid level, driving ball float slides at liquid level control tube easy on and off, control the break-make of tongue tube, and then the closure and the disconnection of control A.C. contactor, the work of load controlled effectively.This utility model is simple in structure, and is with low cost, easy to install, is suitable for the water level control of roof solar water heater, water tank on civilian, in the industrial liquid level regulating and controlling such as filtering ponds, service sink, fermentation vat, boiler that are suitable for.

(4), description of drawings:

Fig. 1 is the structural representation of a kind of automatic control of liquid device of the utility model;

Fig. 2 is the circuit connection diagram of a kind of automatic control of liquid device of the utility model.

(5), embodiment:

As seen from Figure 1, present embodiment comprises ball float 5 and A.C. contactor 2, ball float 5 internal fixation have a magnetic patch 7, ball float 5 is provided with through hole 6, and ball float 5 is actively set on the liquid level control tube 1 of sealing by through hole 6, and the lower end of liquid level control tube 1 is fixed on the container bottom that liquid is housed, the bottom of liquid level control tube 1 is fixed with plate washer 8, ball float 5 can slide at liquid level control tube 1 easy on and off, and the upper end in the liquid level control tube 1 is fixed with a normally closed type tongue tube 3, and the lower end is fixed with a tongue tube 4 open in usual; Normally closed type tongue tube 3 is connected with A.C. contactor 2 usefulness leads with tongue tube 4 open in usual.

As seen from Figure 2, an end of normally closed type tongue tube 3 is connected with lead with the coil terminals A1 of A.C. contactor 2, and the other end is connected with lead with the switch contact B1 open in usual of A.C. contactor 2; One end of tongue tube 4 open in usual is connected with lead with the coil terminals A1 of A.C. contactor 2, and the other end is connected with lead with the normally closed type switch contact C1 of A.C. contactor 2; The normally closed type switch contact C1 ' of A.C. contactor 2 and the switch contact B1 ' open in usual of A.C. contactor 2, B2 ' lead short circuit; The external alternating current 220V power supply of switch contact B2 ' open in usual, B3 ' of A.C. contactor 2, link to each other with load with the corresponding switch contact B2 open in usual of switch contact B2 ' open in usual, the B3 ' of A.C. contactor 2, B3, another coil terminals A1 ' on the A.C. contactor 2 is connected with lead with switch contact B3 ' open in usual.If external power supply is a three-phase alternating current, then the switch contact B1 ' open in usual of A.C. contactor 2, B2 ', B3 ' link to each other with corresponding three-phase alternating-current supply, join with the corresponding switch contact B2 open in usual of switch contact B2 ' open in usual, B3 ', the B4 ' of A.C. contactor 2, B3, B4 and load.

In Fig. 2, in order to prevent that tongue tube breaks down in the liquid level control tube 1, present embodiment is connected in series a K switch between the coil terminals A1 of the normally closed type switch contact C1 ' on the A.C. contactor 2 and A.C. contactor 2, by the work of the artificial control load of K switch, should disconnect the connection lead of A.C. contactor 2 simultaneously.

In the present embodiment, load is a water pump.Ball float 5 and liquid level control tube 1 are to be made by nonmagnetic substances such as plastics or copper, can not the magnetic effect be arranged with magnet.The length of liquid level control tube 1 adapts with the height of liquid level according to the actual requirements, can be 50cm, 80cm, 100cm, 120cm, 150cm, 200cm or the like.A.C. contactor can be matched according to the load voltage of practical application, as 110V, 220V, 380V.If liquid level control tube 1 is at water tank bottom fixedly the time, with the stainless steel nut simultaneously with concrete casting together, a stainless steel bolt is fixed in the bottom of liquid level control tube, be connected on the nut with bolt, utilize concrete weight to be deposited in the water tank, fix liquid level control tube 1 with this, the immobile liquid level control pipe 1 in this way, maintenance and replacing can not damage water tank during installation yet after being convenient to.

The principle of work of present embodiment is: when the liquid position in the container descends, ball float 5 slides into tongue tube open in usual 4 places of liquid level control tube 1 lower end for 1 time along the liquid level control tube, because the magnetic control effect of the magnetic patch 7 in the ball float 5, tongue tube 4 closures open in usual, the coil terminals energising of A.C. contactor 2, the switch contact adhesive open in usual of A.C. contactor 2, the normally closed type switch contact of A.C. contactor 2 disconnects, thereby load and external power supply are connected, the load water pump is started working, and the liquid of container is put into.Position rising along with liquid, ball float 5 slides into normally closed type tongue tube 3 places of liquid level control tube 1 upper end on the liquid level control tube 1, because the magnetic control effect of the magnetic patch 7 in the ball float 5, normally closed type tongue tube 3 disconnects, and the coil terminals of A.C. contactor 2 and power supply disconnect, and the switch contact open in usual of A.C. contactor 2 disconnects, the normally closed type switch contact closure of A.C. contactor 2, thereby load and external power supply are disconnected, and the load water pump quits work, and the liquid of container stops to put into.

Claims

1, a kind of automatic control of liquid device, comprise ball float (5) and A.C. contactor (2), it is characterized in that: said ball float (5) internal fixation is provided with a magnetic patch (7), ball float (5) is provided with through hole (6), ball float (5) is actively set on the liquid level control tube (1) of upper and lower side sealing by through hole (6), the lower end of said liquid level control tube (1) is fixed on the container bottom that liquid is housed, upper end in the liquid level control tube (1) is fixed with a normally closed type tongue tube (3), and the lower end is fixed with a tongue tube open in usual (4); One end of normally closed type tongue tube (3) is connected with lead with the coil terminals A1 of A.C. contactor (2), and the other end is connected with lead with the switch contact B1 open in usual of A.C. contactor (2); One end of tongue tube open in usual (4) is connected with lead with the coil terminals A1 of A.C. contactor (2), and the other end is connected with lead with the normally closed type switch contact C1 of A.C. contactor (2); The normally closed type switch contact C1 ' of A.C. contactor (2) is connected with lead with switch contact B1 ' open in usual, the B2 ' of A.C. contactor (2); The switch contact B2 ' open in usual of A.C. contactor (2), B3 ', B4 ' link to each other with external power supply, link to each other with load with the corresponding switch contact B2 open in usual of switch contact B2 ' open in usual, B3 ', the B4 ' of A.C. contactor (2), B3, B4, another coil terminals A1 ' on the A.C. contactor (2) is connected with lead with switch contact B3 ' open in usual.

2, a kind of automatic control of liquid device according to claim 1 is characterized in that: be fixed with a plate washer (8) in the bottom of liquid level control tube (1).

3, a kind of automatic control of liquid device according to claim 1, it is characterized in that: switch contact B2 ' open in usual, the B3 ' of A.C. contactor (2) link to each other with AC power 220V, join with the corresponding switch contact B2 open in usual of switch contact B2 ' open in usual, the B3 ' of A.C. contactor (2), B3 and load.

4, a kind of automatic control of liquid device according to claim 1 is characterized in that: be connected in series a K switch between the normally closed type switch contact C1 ' on the A.C. contactor (2) and the coil terminals A1 of A.C. contactor (2).

5, a kind of automatic control of liquid device according to claim 1 is characterized in that: said ball float (5) and liquid level control tube (1) are to be made by nonmagnetic substances such as plastics or copper.