Cursor displayed float-type liquidometer

Abstract

The invention relates to a cursor displayed float-type liquidometer. A float chamber of the cursor displayed float-type liquidometer is made of non-ferromagnetic materials, a float is a hollow ball-shaped float made of ferromagnetic materials, and a graduation ruler is installed outside the float chamber; a cursor comprises a cylindrical magnetic steel with a central hole, a short shaft, a connection rod and a balancing weight, wherein the central hole of the magnetic steel is horizontally located on the axis of the magnetic steel, and magnetic poles of the magnetic steel are distributed along the axial direction or located on the radial inner and outer surfaces of the magnetic steel; the short shaft penetrates through the central hole of the magnetic steel to be fixedly installed, and the connection rod is hinged to the short shaft and capable of rotating around the short shaft; the balancing weight is fixedly connected with the lower end of the connection rod, and the center of gravity of the cursor is guaranteed to be located on the medial axis of the cursor and below the horizontal central line of the magnetic steel; and the outer wall of the float chamber is provided with a plane which is parallel to the axis of the float chamber, and the magnetic steel is in line contact with the plane and rolls on the plane along the axial direction of the float chamber. The cursor displayed float-type liquidometer uses the cursor to replace a buoy and is simple in structure, easy to manufacture, reliable in using, cost-saving and wide in application range.

Description

Technical field [0001] The invention relates to the field of liquid level measurement, in particular to a float type liquid level gauge displayed by a cursor. Background technique [0002] Existing on-site indicating liquid level meters include glass plate type, magnetic flap (column) type, buoy type, two-color water level meter, etc. The glass plate type can only be visually inspected at close range, it is difficult to visually inspect after being covered with dust, and the pressure resistance is limited. The magnetic flap (pillar) structure is relatively complicated and garbled. The applicable medium range of the two-color water level gauge is narrow and the pressure resistance is also limited. The glass plate type is also easy to be polluted by water quality, making visual inspection difficult. In addition, the glass plate type liquid level gauge or the two-color water level gauge cannot be insulated, resulting in high energy consumption. [0003] As described in ZL93213461....

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: both the float and the vernier are sliding friction, resulting in a large friction coefficient, which makes the friction force large and affects the accuracy and sensitivity, and is even unusable

Its disadvantages are: 1. The float is a sliding friction, and its disadvantages are also the same as above

2. The arrangement of magnetic steel in the entire circle of the float increases the weight of the float, which will inevitably increase the volume of the float

3. The demagnetization temperature of the magnetic steel limits the service temperature of the liquid level gauge

In addition, there is also the problem that the two guide rails need to be parallel and perpendicular to the ground at the same time, which increases the difficulty and cost of manufacturing

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