CN2063626U

CN2063626U - Built-in float type liquid level transducer

Info

Publication number: CN2063626U
Application number: CN 90212090
Authority: CN
Inventors: 姚宇
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-04
Filing date: 1990-04-04
Publication date: 1990-10-10

Abstract

The utility model relates to a built-in float type liquid level transducer belonging to an automatic control device. A reed switch is sealed in a signal box by an insulating cement object, the inner of a sampling tube is provided with a float which can move freely in the sampling tube, and the top end of the float is fixed with a magnetic steel. When the liquid level hasn't reached to the sampling tube, the magnetic steel can not make the reed switch attract to make the signal transmission line give a shutoff signal. When the liquid level reaches to a certain position of the sampling tube and makes the float upwards to a certain position, the magnetic steel makes the reed switch attract to make the signal transmission line give a closing signal. The utility model is suitable for preventing overflow when a transmission container is filled with the liquid.

Description

Built-in float type liquid level transducer

The utility model belongs to automatic control device.Be used in the fixedly interior float-type liquid level sensor of liquid hold-up vessel at present, because the volume of float moves too greatly and easily and can not be used for transmitting container (as oil carrier or tank car etc.) is prevented to overflow to emit when adorning liquid.

Facts have proved that the float-type liquid level sensor is simple and reliable liquid level sensor.In order to make this liquid level sensor can be used for the anti-overflow of transmitting container when adorning liquid emitted, I propose the utility model hereby.Structure of the present utility model as shown in the figure, it comprises signal transmssion line (1), tongue tube (2) glue envelope thing (3), rain-proof cover (4), signal box (5), magnet steel (6), float (7), sampling pipe (8).

It is a tongue tube that one or a few is in parallel with after signal transmssion line is connected, and puts into the upper end of signal box, and with insulating gel envelope thing its glue is enclosed in the box.The signal box is that the disjunctor made from non-magnet material is bowl-shape, and the outer rib-loop of upper end box processing, the interior rib-loop of lower end box processing.Sampling pipe is to be that tubulose forms with the welding of non-magnetic conduction tube of material or with non-magnet material direct pouring, rib-loop and be connected with signal pipe lower end box outside a lot of apertures of processing, upper end open place process on bottom and wall.That make with non-magnet material a, external diameter pack into less than sample tube inner diameter in sampling pipe, and length is less than the float of the degree of depth in the sampling pipe, and float can move freely in sampling pipe.This float also can be made with solid wooden stick or foam.Adopt embedding to press on the top of float and fix a magnet steel with ways such as bonding agent are bonding.During use, be fixed on the utility model on the certain position of dress liquid oil filling riser with methods such as colligations; Afterwards oil filling riser is inserted and adorn liquid in the transmitting container; Signal transmssion line is connected with control instrument.When liquid level did not also arrive sampling pipe, because the effect of gravity, float was in the bottom of sampling pipe, and at this moment magnet steel is not because of making the tongue tube adhesive away from tongue tube, and at this moment signal transmssion line is given cut-off signal of control instrument.When liquid level arrived the sampling pipe certain position, float began floating: along with the continuation of liquid level is risen, float also and then floats, and just makes the distance of magnet steel and tongue tube more and more nearer.When the distance of magnet steel and tongue tube near to certain apart from the time, tongue tube adhesive under the magneticaction of magnet steel, at this moment signal transmssion line is given closure signal of control instrument.Control instrument is to disconnect can judging liquid level with closure state and whether arriving the transmitting container mouth by what detect that signal transmssion line provides, thereby reaches controlling liquid whether continue to pack into the purpose of transmitting container.

Advantage of the present utility model is: can make sensor simple and reliable.

The utility model is applicable to transmitting container is prevented to overflow when adorning liquid to falsely use.

Claims

1, built-in float-type liquid level sensor, belong to automatic control device, it is the existing higher float-type liquid level sensor principle of shape reliability to be used for the anti-overflow of transmitting container when adorning liquid emit, feature of the present utility model is to seal one or a few tongue tube in parallel with insulating gel envelope thing glue in a signal box, and with a sampling pipe with being threaded, adorn a top in the sampling pipe and fix a magnet steel and the float that can move freely within it.

2, by the described sensor of claim 1, it is characterized in that the bowl-shape signal box of the disjunctor made from non-magnet material, its upper end threading, lower end machining internal thread.

3,, it is characterized in that sampling pipe is that tubulose forms with non-magnetic conduction tube of material welding or with non-magnet material direct pouring, a lot of apertures of processing on its bottom and the wall by the described sensor of claim 1.

4, by the described sensor of claim 1, it is characterized in that float is to make with non-magnet material or solid wooden stick or foam, its external diameter must be less than sample tube inner diameter, and length is less than the sampling pipe degree of depth.End at float is fixed a magnet steel.