CN205561988U

CN205561988U - Float gauge

Info

Publication number: CN205561988U
Application number: CN201620166597.1U
Authority: CN
Inventors: 冯耀依
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-06
Filing date: 2016-03-06
Publication date: 2016-09-07
Anticipated expiration: 2026-03-06

Abstract

The utility model relates to a float gauge belongs to measuring instrument technical field. The problem that will solve is: measure the switching value signal of telecommunication of the complicated teletransmission of liquid level. The technical scheme main points: floating on the liquid level with a float, being connected a vertical induction rod with the float, float and induction rod are along with the liquid level up -and -down motion, and in induction rod inserted a vertical rigid's little drum, rigid's inductance loop to small circle section of thick bamboo overcoat, has two range upon range of air core coils in the inductance loop, responded to the outside electronic circuit of two intra -annular winding connections. The inductance loop is inserted by the electronic circuit whether through the induction rod who responds to two intra -annular air core coil sensing up -and -down motions in, the electronic circuit externally sends electric contact signal with this. Predominant use: the liquid level measurement of aspects such as civilian, industry, science and technology.

Description

Floating ball lever meter

Technical field

This utility model belongs to measuring instruments field.It it is a kind of teletransmission float type liquid level switch.

Background technology

A kind of float type level gauge of invention, can be used in normal temperature and pressure surrounding medium, it is also possible to, it is adaptable in severe media environment and work reliably and with long-term, such as high-pressure medium etc..Existing float level meter mostly is magnetic, the liquidometer of this type of teletransmission comes with some shortcomings: magnet produces active force with external object and affects reliability and degree of accuracy, sense magnetic device often goes wrong, electronic circuit also time problematic generation, impact sense magnetic device and the life-span of electronic circuit during measured medium temperature height；Adapting to adverse circumstances in these liquidometers, current price is the highest.And the present invention solves these problems to a certain extent, the out of order probability of inductive head is the least, and the most devices in electronic circuit are all away from measured medium.

Summary of the invention

Invent a kind of floating ball lever meter, send out teletransmission on-off model.Can be used for peasant household's roof cistern, factory's water tank, factory's fuel tank etc. many local.In a floating drum, with the float of induction rod, and then liquid level is floating, detects the position of induction rod by the mode of isolation detection, infers the position of liquid level with this.

nullStructure describes: this floating ball lever meter includes vertical cylindrical float，Connection tested container and two communicating pipe of floating drum，The float being placed in floating drum，The induction rod being connected with float，Induction rod is made by the material of magnetic conduction，One little cylinder of the cylinder that diameter is more much smaller than spar diameter，This little cylinder is made by non-magnetic material，This little cylinder is fixedly mounted on floating drum upper surface vertically and is placed on floating drum、And with floating drum concentric、And connect with floating drum，Part induction rod is inserted in little cylinder with floating drum connected entrance by little cylinder，Little cylinder sleeve inductance loop，Inductance loop is mainly by two air core coils、One dividing plate and shell composition，Dividing plate is the plate that there is a hole centre，Two air core coils and carrier ring stack，Dividing plate is positioned in the middle of two coils，Then it is encapsulated in a shell with glue，One through hole of this assembly intermediate formation，That is two air core coils、Dividing plate、There is a hole centre of two end faces of shell，This some holes axial alignment constitutes the hole in the middle of inductance loop.Dividing plate and shell are all made by permeability magnetic material.In inductance loop, two air core coils draw four lines.Inductance loop is by the borehole jack in the middle of it outside little cylinder, and the lead-out wire of two air core coils in inductance loop is connected to external electrical circuit.Whole electronic circuit composition structure including two coils, is divided into several part by functional block diagram: upper coil, lower coil, AC signal occurring source, signal receive rectification and amplification, voltage setting value unit, voltage comparison unit, the signal of telecommunication output unit of comparative result.In electronic circuit, " AC signal occurring source " outputs signals to a coil and encourages, the signal that the output of another coil senses is to " signal receives rectification and amplification " unit, " signal receives rectification and amplification " unit and " voltage setting value unit " all output signals to " voltage comparison unit ", " voltage comparison unit " outputs signals to " signal of telecommunication output unit of comparative result ", and " signal of telecommunication output unit of comparative result " exports a switching value.Whether the induction rod so moved up and down by two air core coil sensings in inductance loop is inserted in inductance loop, and electronic circuit externally sends the electric contact signal being opened or closed.Can overlap one or more inductance loop outside little cylinder, as required depending on.According to the concrete needs measured, said structure can also turn 180 degree of making up and down around, namely: little cylinder be fixedly mounted on vertically floating drum lower surface be placed under floating drum and with floating drum concentric and connecting with floating drum, the induction rod being connected with float is placed under float, and a part of induction rod is inserted in little cylinder with floating drum connected entrance by little cylinder.

Accompanying drawing explanation

Fig. 1 is liquidometer sectional structure chart, the inductance loop 7 design on floating drum 3, does not draws electronic circuit.Fig. 2 is the sectional structure chart that liquidometer turns 180 degree of designs up and down around, and i.e. the inductance loop 7 design under floating drum 3, does not draws electronic circuit.Fig. 3 is inductance loop 7 front view.Fig. 4 is inductance loop 7 top view.Fig. 5 is the line B-B profile along Fig. 3 of inductance loop.Fig. 6 is electronic circuit block diagram.

In Fig. 1,1 is upper end communicating pipe, and 2 is lower end communicating pipe, and 3 is floating drum, and 4 is float, and 5 is induction rod, and 6 is little cylinder.7 is inductance loop, and 14 is drain plug.In Fig. 3,9 is four lead-out wires, (four lead-out wires of four lead-out wires 9 interior two coils of namely inductance loop 7).In Fig. 4,8 is inductance loop interstitial hole.In Fig. 5,10 is upper coil, and 11 is lower coil, and 12 is dividing plate, and 13 is the shell of encapsulated coil.

Detailed description of the invention

Describe in detail by the design of Fig. 1 below.Upper end communicating pipe 1 is connected with tested container with lower end communicating pipe 2 one end, and the other end is connected with floating drum 3.Floating drum 3 is vertical.Medium in tested container enters in floating drum 3 through upper end communicating pipe 1 and lower end communicating pipe 2, and the liquid level in floating drum 3 is the same with the liquid level in tested container high.Connecting a little cylinder of cylinder 6 on floating drum, little cylinder 6 is made by non-magnetic material.The diameter of little cylinder 6 is more much smaller than floating drum 3 diameter, and this little cylinder 6 is fixedly mounted on floating drum 3 upper surface vertically and is placed on floating drum 3 and connects with floating drum 3 concentric and with floating drum 3.Float 4, float 4 is had to connect an induction rod 5 in floating drum 3.A upper end part for induction rod 5 is inserted in little cylinder 6 with floating drum 3 connected entrance by little cylinder 6.Float 4 swims on the water surface, and float 4 and induction rod 5 can follow water level to move up and down.Induction rod 5 is made by the material of magnetic conduction.Little cylinder 6 outer suit inductance loop 7, inductance loop 7 pipe clamp is positioned on little cylinder 6, and pipe clamp omits in the drawings, do not draws.Inductance loop 7 connects electronic circuit, constitutes a set of sensor；The block diagram of electronic circuit is as shown in Figure 6.Dividing plate 12 makes of permeability magnetic material.Inductance loop 7 is mainly made up of the shell 13 of upper coil 10, lower coil 11, dividing plate 12 and encapsulated coil；Upper coil 10 and lower coil 11 are all air core coils, and dividing plate 12 is the plate that there is a hole centre, the most porose in the middle of 13 two end faces of the shell of encapsulated coil；Upper coil 10, lower coil 11 and dividing plate 12 are stacked together, and dividing plate 12 is in the middle of coil 10, lower coil 11, is then encapsulated in the shell 13 of encapsulated coil with glue；Hole in the middle of upper coil 10, lower coil 11 and dividing plate 12 three and the whole axial alignment in hole in the middle of 13 two end faces of the shell of encapsulated coil, this some holes just constitutes the inductance loop interstitial hole 8 of inductance loop 7, and inductance loop 7 has just become a ring to have the cylinder in a hole in the middle of in other words.The shell 13 of dividing plate 12 and encapsulated coil is all made by permeability magnetic material.Inductance loop 7 is enclosed within outside little cylinder 6 by inductance loop interstitial hole 8；In inductance loop 7, upper coil 10, lower coil 11 draw four lines, and i.e. four lead-out wires 9 are connected to external electrical circuit.Thus constitute electronic circuit block diagram as shown in Figure 6.Electronic circuit block diagram shown in accompanying drawing 6 includes coil 10, lower coil 11.

Electronic circuit block diagram shown in accompanying drawing 6, electronic circuit is made up of several partial functions: upper coil, lower coil, AC signal occurring source, signal receive rectification and amplification, voltage setting value unit, voltage comparison unit, the signal of telecommunication output unit of comparative result.Coil 10, " lower coil " correspondence lower coil 11 in " upper coil " correspondence in accompanying drawing 6 electronic circuit block diagram.In electronic circuit, " AC signal occurring source " outputs signals to lower coil 11 and encourages, upper coil 10 induced signal exports " signal receives rectification and amplification " unit, " signal receives rectification and amplification " unit and " voltage setting value unit " all output signals to " voltage comparison unit ", and " voltage comparison unit " outputs signals to " signal of telecommunication output unit of comparative result " and export a switching value.

Inductance loop 7 and its electronic circuit connected form a set of sensor.In specifically used, a set of liquidometer can install and use one or more sets sensors.Can fill one or more inductance loop 7 outside the least cylinder 6, each inductance loop 7 connects a set of independent electronic circuit.According to the concrete needs measured, the said structure described by Fig. 1 can also turn 180 degree of making around, up and down as Fig. 2.The design of Fig. 2 simply turns 180 degree around by Fig. 1 up and down, is embodied as the manufacture method with reference to Fig. 1.Namely: little cylinder 6 is fixedly mounted on floating drum 3 lower surface vertically and is placed under floating drum 3 and connects with floating drum 3 concentric and with floating drum 3, the induction rod 5 being connected with float 4 is placed under float 4, and a part of induction rod 5 is inserted in little cylinder 6 with floating drum 3 connected entrance by little cylinder 6.Fig. 2 with Fig. 1 distinguishes a little, and Fig. 2 designs like that and can directly close at little cylinder 6 end, saves drain plug 14, if desired can also retain drain plug 14.

Claims

1. floating ball lever meter, including: vertical columnar floating drum (3), connect tested container and the communicating pipe (1) of floating drum, connect tested container and the communicating pipe (2) of floating drum (3), the float (4) being contained in floating drum (3), the induction rod (5) made of permeability magnetic material being connected with float (4), the little cylinder of the cylinder (6) made of non-magnet_conductible material being connected with floating drum (3), it is enclosed within little cylinder (6) inductance loop (7) outward, upper coil (10) in inductance loop (7), lower coil (11) in inductance loop (7), the electronic circuit being connected with upper coil (10) and lower coil (11)；It is characterized in that: be enclosed within a little cylinder (6) two coils comprising stacking outward and i.e. go up the inductance loop (7) of coil (10) and lower coil (11) in little cylinder (6), having an induction rod (5) having magnetic conductivity moved up and down with liquid level；By standing on end the shape and structure describing inductance loop (7), inductance loop (7) profile is column and there is a most penetrating vertical hole centre, structure is that on two air core coils of stacked on top of one another, the shell (13) of coil (10) and lower coil (11) one i.e. encapsulated coil of shell of threading is interior, the most porose interstitial hole with upper coil (10) and lower coil (11) in shell (13) upper and lower end face of encapsulated coil all the most vertically aligns the hole in the middle of composition inductance loop (7), and inductance loop (7) is by the borehole jack in the middle of self at little cylinder (6) outward；Floating drum (3) and little cylinder (6) are all the cylinders vertically placed, and the diameter of little cylinder (6) is less than the diameter of floating drum (3), and little cylinder (6) is from floating drum (3) end face is fixedly connected on floating drum (3) and the in communication and co-axial heart；Induction rod (5) connects float (4) and can move up and down with float (4), and induction rod (5) part another part in floating drum (3) is inserted in little cylinder (6) by the connected entrance between little cylinder (6) and floating drum (3).

Floating ball lever meter the most according to claim 1, it is characterized in that: upper coil (10) and the middle dividing plate (12) having the material of a magnetic conduction to make of lower coil (11) in inductance loop (7), dividing plate (12) is one block of plate and there is a hole being perpendicular to this board plane centre, hole axial alignment in the middle of this hole and upper coil (10) and lower coil (11), this hole also forms a section of inductance loop interstitial hole (8).

Floating ball lever meter the most according to claim 1, is characterized in that: export a coil inserting circle (11) in road AC signal excitation inductance loop (7) in the electronic circuit being connected with inductance loop (7)；In the electronic circuit that the input of voltage that on another coil, coil (10) induces is connected with inductance loop (7), through amplifying, rectification and compare and export a switching value.