An anti-clogging electronic water meter

Abstract

The invention discloses an anti-clogging electronic metering water meter, which comprises a water meter body, an impeller, a water meter casing, a water inlet and a water outlet. There is a connecting shaft and a PLC controller inside. There is a non-magnetic sensor including an induction element on the connecting shaft. The non-magnetic sensor is close to the rotating shaft of the impeller. There is a cavity under the impeller in the water meter body. A boss and a runner A are provided. A through hole is provided in the middle of the runner A. An internal gear is provided on the inner wall of the through hole. The rotating shaft of the runner A and the impeller is driven by a gear. The anti-clogging electronic metering water meter of the present invention can absorb the sundries in the water to the bottom of the meter to prevent the deterioration of the water quality; there is no magnetic interference problem; at the same time, the base meter has a better initial flow rate and range ratio; only through a The detection probe can identify the direction of the water flow and reduce the detection power consumption.

Description

technical field [0001] The invention relates to the technical field of measuring instruments, in particular to an anti-clogging electronic metering water meter. Background technique [0002] As a measuring instrument, the water meter mostly measures the cumulative flow of water. Most of the traditional water meters are magnetic transmission mechanical measurement or magnetic detection electronic measurement: the current method is to add a small magnet to the pointer of the original old-fashioned water meter, and add a magnetic sensor and an external acquisition circuit board inside the water meter The sensor is connected to the external acquisition circuit board through wires, and the purpose of metering water consumption is achieved by detecting the number of turns of the pointer. However, the signal transmission is through the magnetic field, so there may be interference by the external magnetic field. At this time, the sensor will detect a constant magnetic signal, and t...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides an anti-clogging electronic metering water meter, which can absorb impurities in the water to the bottom of the meter to prevent deterioration of the water quality; realize the counting part and the base meter The parts are relatively independent, providing reliable waterproof protection for electronic devices; there is no magnetic interference problem; at the same time, the base meter has better starting flow and range ratio; two sensing elements make the gravity division on the impeller more uniform , which improves the stability of the measurement and the performance of the initial flow rate; there are two pulse signals for one rotation of the impeller, which improves the measurement resolution by 50%; the direction of the water flow can be identified by only one detection probe and the detection rate is reduced. Power consumption, no need for single-chip cooperative sensor detection, directly output with level pulse signal

Images