CN2069132U

CN2069132U - Automatic liquid level control arrangement

Info

Publication number: CN2069132U
Application number: CN 89209223
Authority: CN
Inventors: 肖冰
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-06-28
Filing date: 1989-06-28
Publication date: 1991-01-09

Abstract

The utility model discloses a float mechanical type automatic liquid level control arrangement. The electric part of the utility model is only a pull switch (2). A float (7) alternately uses the gravity of itself or the buoyancy upward to pull the switch (2) downward by a section of hard rod to redirect, which can control an actuator element, such as the motor pump or the electromagnetic valve, etc. The utility model has the advantages of simple structure and reliable performance and solves the defects of more components and hard maintenance existing in the prior liquid level automatic control device. The automatic control of the liquid level comes easier and cheaper.

Description

Automatic liquid level control arrangement

The utility model belongs to the electrical equipment instrument for automatic control.

The instrument of automatic control motor pump or solenoid valve has three kinds at present: transistor type, dry-reed, float mechanical type.Wherein the float mechanical type is not subjected to the influence of the conductive magneto-conductive character of temperature, level control (LC) amplitude and medium, thereby has reliable and stable characteristics such as durable.Yet practical at present float mechanical manipulator does not still break away from from the upper and lower limit bit switch, to relay, to magnetic starter, to the pattern of executive component (electric-motor pump, solenoid valve), so still dislike more complicated.

The purpose of this utility model is: only utilize a pullswitch, and one section hard tube, one section stiff rod and a float are finished the control to electric-motor pump or solenoid valve.Thereby make the automatic control of liquid level, become easier, simpler, more cheap and more durable reliable.

2. this utility model by being fixed on the pullswitch of box in 1., the stop in the backguy 8., the hard tube that links to each other with box 3., the flange of hard tube lower end 4., 6. the stiff rod in the backguy 5. of pullswitch of going here and there reaches the end fixed float of backguy and 7. forms.See accompanying drawing 1.

The course of work and principle (existing is that example is described below with the control suction pump):

This device is installed in the water tank as shown in the figure.Water level in water tank is lower than down in limited time, and 2. 5. the 7. gravity of float own spur pullswitch by backguy, makes its connection, and keep this state (pullswitch has the self-sustaining characteristic), and water pump is started working.As Fig. 1.

When water pump pumps into water tank when giving take the altitude (upper limit) with water, water is to float buoyancy 7., by stiff rod 6. with flange leverage 4., change direction and amplify, 2. Drawing switch makes it to disconnect, and keeps this state, thereby stop pump working.As Fig. 3.

Fix in limited time when cistern water level drops to give, the gravity of float is Drawing switch once more, repeats action noted earlier.Thereby finish automatic control to electric-motor pump.

Just now narration was the water supply state of a control, and draining is controlled on the device without any change, only switch was drawn earlier and just can finish conversion.Vice versa.

According to the requirement of control liquid surface lifting amplitude, determine hard tube 3. with backguy length 4..

Description of drawings:

1. box

2. pullswitch

3. hard tube

4. flange

5. backguy

6. stiff rod

7. float

8. stop

Annotate: 1. the lead of pullswitch is not drawn.

2. Fig. 2 is a hold mode.

Claims

1, a kind of by a float 7., one section stiff rod 6., one section lower end flanged pin hard tube 4. 3., the mechanical type liquid level control device that 2. the pullswitch group becomes, the electric part that it is characterized in that it be a pullswitch 2., by the one section stiff rod of string in backguy 5. 6., alternately with 7. gravity of float itself, or with liquid float buoyancy is 7. changed direction and amplify 2. in order to Drawing switch.

2,, it is characterized in that a stop being housed 8. in the backguy 2. of said pullswitch according to the described liquid level control device of claim 1.

3, according to the described liquid level control device of claim 1, it is characterized in that said stiff rod 6., can be the solid bar that two ends are with holes or encircle, and also can be one section hard tube.

4,6., it is characterized in that 5. backguy pass in managing, and can be fixed on backguy and 5. go up according to the described tubulose stiff rod of claim 3.

5, according to the described liquid level control device of claim 1, it is characterized in that said lower end flanged pin hard tube 4. 3., flange 4. can with hard tube 3. built in together, also can separate independent making.

6, according to the described liquid level control device of claim 1, it is characterized in that said flange 4. be its external diameter than connect the 3. big a kind of rotation body structure more than 4 centimetres of internal diameter of hard tube, can be horn-like, bowl-shape, or other shape.

7, according to the described liquid level control device of claim 1, it is characterized in that said stiff rod 6., 4. not hinged with the fulcrum flange.