Counter for water meter

Abstract

The invention discloses a counter for a water meter. The counter comprises an upper shell body and a lower shell body. A displaying groove is formed in the upper shell body and a plurality of indicating gear wheels are arranged on the upper shell body; each indicating gear wheel comprises an indicator and a driving gear; values on the indicating gear wheels respectively correspond to one-ten thousandth, one-thousandth, one-hundredth, and one-tenth in a decimal system; a transition gear which meshes with any of the driving gears corresponding to the one-ten thousandth, the one-thousandth, the one-hundredth, and the one-tenth and a synchromesh gear with the same number of teeth of the driving gear are arranged outside the driving gear, an output shaft of the synchromesh gear is provided withan output magnetic cylinder, and the output magnetic cylinder is located on the upper shell body. According to the counter for the water meter, by arranging the synchromesh gear synchronized with thedriving gear, counting process of the driving gear is synchronously transmitted to the output magnetic cylinder, an intelligent water meter is formed only by arranging a photoelectric sampler outsidethe water meter while sampling is achieved, separation of structures of the photoelectric sampler and the counter is achieved, so that service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of water meters, in particular to a counter of a water meter. Background technique [0002] An existing intelligent water meter includes a counter and a photoelectric sampler arranged in the movement. The counter includes a plurality of word roulettes, and the photoelectric sampler includes a plurality of PCBA boards provided with infrared photoelectric cells and control chips. Two PCBA boards are respectively arranged on both sides of the word wheel, one PCBA board is used to transmit optical signals, and the other PCBA board is used to receive optical signals. There are grooves for the light to pass through on the character wheel. When the character wheel rotates, the light signal has two possibilities: penetration and blocking. According to the position of the character wheel, a group of codes are formed correspondingly. The chip translates the code into decimal data to count. That is to say, the existi...

AI Technical Summary

Problems solved by technology

However, because the existing movement is immersed in water, the photoelectric sampler is in an environment with high humidity, and the photoelectric sampler does not have good waterproof and moisture-proof capabilities, so it is easy to be damaged, especially Once the PCBA board in the photoelectric sampler gets wet, the count will be inaccurate. When the count is large, the user will pay more water bills. When the count is small, the water company will suffer losses, which may cause many problems.

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