CN2292125Y

CN2292125Y - Automatic liquid supply tank

Info

Publication number: CN2292125Y
Application number: CN 97214228
Authority: CN
Inventors: 叶燕萍
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-14
Filing date: 1997-04-14
Publication date: 1998-09-23
Anticipated expiration: 2007-04-14

Abstract

The utility model discloses an automatic liquid supply tank of a control device, which makes use of the combination of magnetic floaters, electricity, an electric circuit. A starting return circuit connected with low liquid level and the return circuit of delay circuit for infusion work are arranged. A magnetic float switch device is used for controlling starting, and a time relay is used for controlling the operating time of an infusion pump or disconnecting the control by force. The automatic liquid supply tank does not work during power failure, has the advantages of stability, reliability, and good firmness, and can be used for vehicles and various different occasions outdoors.

Description

Automatic liquid feeding case

The utility model belongs to the storage liquid container, especially a kind of automatic liquid feeding case that utilizes buoyant means control.

Utilize the automatic liquid feeding case of buoyant means control to adopt the situation of ball float mechanism more at present, as attic tank, toilet cistern, its shortcoming is that there was a mechanical failure easily and leaks and cause former water waste, and applicable surface is also narrower.

The purpose of this utility model is to provide a kind of automatic liquid feeding case that utilizes buoyant means and electric common control, and it is not worked under situation about having a power failure, and it is thorough to be provided with, and is not easy to break down.

Automatic liquid feeding case of the present utility model, comprise casing, take over, infusion pump or electromagnetic valve and control device, it is characterized in that said control device is formed in parallel by two connected in electrical series loops: one is start loop, by current-limiting resistance, the control element or the device of magnetic buoyancy switch and relay J are in series, one is the work timing circuit, control contact by relay J, infusion pump or electromagnetic valve are in series, and magnetic float is located at close inwall in the casing, and its position is corresponding with a magnetic buoyancy switch contact on being located at tank wall low liquid level line outward.

Of the present utility model simple in structure, flexible configuration, compliance is good, applicable to multiple different occasion.

Be illustrated below in conjunction with accompanying drawing:

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the electric control loop schematic diagram.

Fig. 3 is the structural representation of temperature-time relay.

Fig. 4 is another kind of sealing buoyancy magnetic contact switch schematic diagram.

Referring to Fig. 1: the 1st, water tank, be separated out the passage that one section zone constitutes float 2 with dividing plate 3 on its limit or on the angle with the liquid level lifting, have magnet on the float 2, fluctuate along chamber interior wall, corresponding low liquid level line place is provided with the switch contact that is subjected to the control of float magnetic outside tank wall.In addition, also be provided with a corresponding identical switch contact at high liquid level line place, the switch contact arrangement of magnetic buoyancy switch adopts tongue tube, and tongue tube 4 is formed start loop with the heating of current-limiting resistance 6, functional switch relay 7.Tongue tube 5 becomes the work timing circuit of series connection with the contact sets of infusion pump (or using electromagnetic valve) 8 and functional switch relay 7.

Fig. 2 is the electrical wiring schematic diagram.Power supply is through K switch ₀Line attachment is composed in parallel by two series circuits.Wherein, the contact K1 (often opening) of current-limiting resistance R1, tongue tube 4 and thermostat galvanothermy element series connection.Adhesive just can make heating work under the effect of K1 magnet in float.In addition, the contact J of the functional switch relay J used of electric temperature control _1-1, the contact K2 series connection of infusion pump P and tongue tube 5.Infusion pump is at J _1-1, K2 control under start working, time-delay quits work after disconnecting by force down in K2 (normally closed) is subjected to magnet in the float as the time spent suction, K2 plays the dual fail-safe effect, and is particularly useful under the accurate inadequately situation of work time-delay.

Fig. 3 is the time relay of a TEMP character, also is a kind of functional switch.It is made up of one group of heating 9 and a pair of controlled temperature control contact 10, and device is in the chamber of housing 11.When heating wire was heated to uniform temperature, the contact contacted under sheet metal take-off effect and connects external circuit.Heating wire quits work, and temperature slowly descends in the chamber, the sheet metal rebound, and the contact disconnects, and the infusion pump on the external circuit quits work.

Fig. 4 is expressed as another kind of sealing buoyancy magnetic contact switch.After starting infusion pump and infusing in casing, liquid level rises, and float is held up in the cell upwards top of the magnetic sheet on the float rod end, the normally closed movable contact of two outer lead wires is drawn down and disconnects force disconnect power supply when guaranteeing that with this liquid level puts in place.This sealing buoyancy magnetic contact switch can replace the function of last figure K1, and particularly applicability is better under big current conditions.

Below sketch the course of work of utility model device:

1. when liquid level dropped to low level in the casing, float descended, and makes tongue tube 4 closings of contact, power on circuitry, heating work and functional switch contact J after a period of time of delaying time _HContact makes infusion pump energising work.

2. in the infusion pump course of work, liquid level rises, and tongue tube 4 contacts disconnect, the heating wire cut-off, and in the temperature decline process, infusion pump keeps delay working in chamber, when liquid volume added is near high liquid level position in the internal box between at this moment, stops automatically carrying.

3. if temperature descended slowly, the liquid feeding time lengthening is reaching on the high liquid level line position, float rise near tongue tube 5 positions by force its constant close contact is inhaled from, infusion pump 8 is quit work, thereby reaches the purpose of automatic liquid feeding.When liquid level drops to low level, repeat said process again.

Wherein the switching device of magnetic float (2) and tongue tube 4 compositions can be used sealing buoyancy magnetic contact switch (Fig. 4) instead and substitute.Exist at feed flow under the situation of pressure, infusion pump can substitute with electromagnetic valve.Time relay J remove to adopt the functional switch of the combined type that the utility model provides, in other words outside the temperature-time relay, also can be in order to direct employing mechanical timer, and other dissimilar relays such as electronic timing are done similar conversion and are used, and effect is identical.Under the enough situation of above-mentioned relay time set accuracy, (K2) that high liquid level line place is provided with can omit.

Claims

1. automatic liquid feeding case, comprise casing (1), take over, infusion pump (8) or electromagnetic valve, and control device, it is characterized in that said control device is formed in parallel by two connected in electrical series loops: one is start loop, by current-limiting resistance R1, the control element or the device of magnetic buoyancy switch K1 and relay J are in series, and one is the work timing circuit, by the control contact J of relay J _1-1, infusion pump (8) or electromagnetic valve are in series, and magnetic float (2) is located at close inwall in the casing, and its position is corresponding with a magnetic buoyancy switch contact on being located at tank wall low liquid level line outward.

2. automatic liquid feeding case as claimed in claim is characterized in that the device that said magnetic buoyancy switch is made up of magnetic float (2) and tongue tube (4).

3. automatic liquid feeding case as claimed in claim 1 or 2 is characterized in that said magnetic buoyancy switch is another kind of sealing buoyancy magnetic contact switch.

4. automatic liquid feeding case as claimed in claim 1 is characterized in that said relay J is a functional switch that is combined by the pair of contact (11) of heating (9) and sheet metal control.