Vacuum wet type photoelectric direct reading remote transmission water meter

Abstract

The invention discloses a vacuum wet type photoelectric direct reading remote transmission water meter which is equipped with a full vacuum anti-seepage character-wheel box, adopts a magnetic driven metering mode, is high in accuracy of readings and is suitable for a remote meter reading system. The water meter comprises the character-wheel box, a counting mechanism arranged inside the character-wheel box and a ten-tooth wheel used for driving the counting mechanism to rotate, wherein a driving character wheel of the counting mechanism inside the character-wheel box, which is provided with a round magnetic cylinder, and the ten-tooth wheel outside the character-wheel box, which is provided with an annular magnetic cylinder, form the magnetic driven metering mode. The character-wheel box of the direct reading remote transmission water meter is fully vacuum sealed. According to the invention, on the basis of the metering structure of an ordinary mechanical liquid sealed water meter, the magnetic cylinders are added on the ten-tooth wheel and the driving character wheel of the vacuum wet type photoelectric direct reading remote transmission water meter to realize the magnetic driven metering mode of the water meter, and the originally unsealed character-wheel box is changed to be a totally vacuum sealed character-wheel box. The vacuum wet type photoelectric direct reading remote transmission water meter is suitable for the remote meter reading system and has the characteristics of accurate readings and stable performance.

Description

technical field [0001] The invention relates to a full-vacuum magnetic transmission type measuring instrument, in particular to a vacuum wet photoelectric direct-reading remote transmission water meter with good sealing performance, strong stability and high measurement accuracy, which is suitable for a remote meter reading system. Background technique [0002] Water meters are the most important measuring instruments used for tap water measurement both at home and abroad. The main structure of the vacuum wet photoelectric direct reading remote water meter generally includes a character wheel box, a counting mechanism set in the character wheel box, and a ten-cone wheel for driving the counting mechanism to rotate. Generally speaking, the word wheel box of the traditional wet photoelectric direct reading remote water meter is not fully sealed. The ten-cone wheel and the counting mechanism in the word wheel box are connected by a word wheel shaft. The special liquid is liqui...

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Problems solved by technology

[0004] In view of the defects in the above-mentioned prior art, the purpose of the present invention is to propose a vacuum wet photoelectric direct reading remote water meter with full vacuum, high measurement accuracy and strong stability, which is suitable for remote meter reading systems, so as to solve the problem of existing wet water meters. The photoelectric direct-reading remote water meter has low measurement accuracy, serious errors, liquid penetration and air bubbles in the counting mechanism of the word wheel box after liquid filling.

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