CN2184978Y

CN2184978Y - Core hole type multi-level float program control switch

Info

Publication number: CN2184978Y
Application number: CN 94237101
Authority: CN
Inventors: 王明伦
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-13
Filing date: 1994-04-13
Publication date: 1994-12-07
Anticipated expiration: 2004-04-13

Abstract

The utility model relates to a core hole type multi-level float program control switch used for liquid level control, which comprises a float, a switch part and a programmed control circuit, wherein, the float with a magnetic loop is provided with a core hole, and the float is sheathed on a switch rod; the switch rod is provided with a reed switch which is connected in the programmed control circuit via leads. The float can move on the switch rod to open or close the switch accordingly to the ascending and the descending of the liquid level; thus, the purpose of liquid level control can be achieved via the programmed control circuit. The utility model has the advantages of simple structure, easy production, low cost and reliable operation. The core hole type float structure and the electronic programmed control type are adopted by the utility model to realize multi-level control.

Description

Core hole type multi-level float program control switch

The utility model relates to a kind of construction of switch that is used for controlling liquid level.

At present, the switch that is used for controlling liquid level switch commonly.Because the float of switch is not in the mood for the hole, can not on switch lever, do motion on a large scale, so can not do biliquid position or the use of multi-level grammed switch.In Aviation Fuel multi-level control, employing be multiple machinery valve structure, its complex structure, specification requirement is tight, manufacturing cost expense height is not suitable for the competition of modern market.

The purpose of this utility model just provides a kind of core hole type multi-level float grammed switch, and not only simple in structure, cost is low, reliable operation, and can realize that multi-level is program control.

The technical solution of the utility model is: comprise float, switch sections and programme control circut, wherein have heart hole on the float with magnet ring, be enclosed within on the switch lever, the tongue tube of contact-carrying is housed on switch lever, and is wired in the programme control circut.

Its detailed content further describes as follows referring to accompanying drawing:

At first to description of drawings:

Fig. 1 represents structure chart of the present utility model;

Fig. 2 represents the mounting structure figure of biliquid position switch;

Fig. 3 represents biliquid position programme control circut schematic diagram;

Fig. 4,5 represents the float of two kinds of different structures respectively.

Referring to Fig. 1, in technique scheme, because float (2) passes through heart borehole jack on switch lever (4), so can move up and down with the lifting of liquid level, when the contact on magnet ring (1) on the float (2) and the tongue tube (3) is in same plane, make the closing of contact of tongue tube (3), by lead (5) signal is passed to programme control circut, when the magnet ring (1) on the float (2) leaves with the contact on the tongue tube (3), the contact of tongue tube (3) is disconnected, and signal is passed to programme control circut, thereby reach the purpose of program control liquid level by lead (5).

The float (2) of the utility model band magnet ring (1) is made cylinder by foamed plastics, and as shown in Figure 4, it is simple in structure, and foamed plastics buoyancy is good, and cost is low.Float of the present utility model also can adopt structure as shown in Figure 5, promptly constitutes the cylinder type hollow float by plastic barrel (9) and lid (10), and hollow position has filler (11).The float of two kinds of structures is cylinder, and is identical in quality around the heart hole, moves up and down steadily, and the flexibility of following the liquid lifting is good.

In order to realize control two-layer or the multilayer liquid level, the utility model comprises two above switches, being configured to of its programme control circut: switch GFK, the DFK that is in differing heights more than two connect with relay J back and liquid electricity valve YDF and K switch ₂Parallel connection is parallel with capacitor C on relay J, be parallel with K switch on low level switch DFK ₁, what Fig. 3 represented is double-deck liquid level programme control circut schematic diagram, Fig. 2 represents the mounting structure figure of biliquid position switch.Referring to Fig. 3, when in the container during no liquid, two floats (2) make magnet ring (1) contact with the contact of tongue tube (3) all in the lower end of switch lever (4), as shown in Figure 2, this moment a high position, low level switch GFK, DFK closure, relay J work, K switch ₁, K ₂Close, liquid electricity valve YDF coil is connected, and liquid enters in the container, along with the adding of liquid, liquid level progressively rises, and low level float (2) is floated, and rises along switch lever (4), magnet ring (1) disconnects with the contact of tongue tube (3), and promptly low level switch DFK disconnects, because of K ₁Self-locking, circuit still are in closed condition, make liquid electricity valve YDF still be in the conducting operating state, continue to give the container feed flow; When liquid level is elevated to high-order float position, promptly high-order float (2) is floated, and magnet ring (1) disconnects with the contact of tongue tube (3), be that high-order switch GFK disconnects, relay J and liquid electricity valve YDK also disconnect along with the disconnection of circuit, stop to make liquid be controlled at a high position to the container feed flow; When the external feed liquid of container, liquid level descends in the container, and at first high-order float (2) descends, its magnet ring (1) again with tongue tube (3) contacting, promptly high-order switch GFK connects, but because low level switch DFK is logical, J, K ₁, K ₂Obstructed, YDF is obstructed for liquid electricity valve, so container liquid feeding not still; When liquid level drops to low level float (2), making low level float (2) drop to that magnet ring (1) connects with tongue tube (3) again is low level switch DFK, J, K ₁, K ₂, YDF conducting thereupon, add liquid to container this moment again, thereby finished a circulation of two position control.

The core hole type float grammed switch that the utility model provides has simple in structure, easy to manufacture, cost is low, the characteristics of reliable operation, it adopts the mode of core hole type Floater Structure, electronic program, can realize multi-level control, can be widely used in individual layer, bilayer, multilayer automatic control of liquid level field, as the automatic control of the double-deck liquid level control of drinking water machine, water tower liquid level and water pumper.

According to embodiment shown in the drawings, the float of being made by foamed plastics (2) is a cylinder, the hole is had the inclination at the center, be pressed with magnet ring (1), as shown in Figure 4, by heart borehole jack on switch lever (4), the bottom is spacing by card volume (6), switch lever (4) is the straight-bar of hollow, one end is equipped with the tongue tube (3) of contact-carrying, lead (5) is connected in the programme control circut by the hollow bulb of switch lever (4), seal (8) is equipped with on the top of switch lever (4), and its length designs according to the degree of depth of control liquid level and the difference of two position, and switch vertically is placed in the container, switch lever (4) is linked together by hold-doun nut (7) with container head (12), when carrying out the control of biliquid position, have two switches, its float (2) is in low layer liquid level and high-rise liquid level respectively, as shown in Figure 2, programme control circut as shown in Figure 3.

Claims

1, a kind of core hole type multi-level float grammed switch, comprise float, switch sections and programme control circut, feature of the present utility model is, have heart hole on the float (2) of band magnet ring (1), be enclosed within on the switch lever (4), the tongue tube (3) of contact-carrying is housed on switch lever (4), and is connected in the programme control circut by lead (5).

2, core hole type multi-level float grammed switch according to claim 1 is characterized in that making cylinder with the float (2) of magnet ring (1) by foamed plastics.

3, core hole type multi-level float grammed switch according to claim 1 is characterized in that constituting the cylinder type hollow float with the float (2) of magnet ring (1) by plastic barrel (9) and lid (10), and hollow position has filler (11).

4, according to claim 1 or 2 or 3 described core hole type multi-level float grammed switches, it is characterized in that, being configured to of programme control circut comprises two above switches, switch GFK, the DFK that is in differing heights more than two connect with relay J back and liquid electricity valve YDF and K switch ₂Parallel connection is parallel with capacitor C on the relay J, be parallel with K switch on low level switch DFK ₁