Electric Trolling Motors,Outboard Trolling Motor,Electric Outboard Trolling Motor,Trolling Motor For Inflatable Boat Ningbo Haishu Hongkang Outdoor Industry & Trade Co., Ltd , https://www.nbhk2012.com
Description of the Invention The present invention belongs to the field of flow measurement of water, and in particular relates to an electronic wing type intelligent small-diameter water meter.
BACKGROUND OF THE INVENTION At present, most of my national water meters use rotary-wing water meters. The structure of this type of water meter is that an indicating mechanism is mounted on the upper part of the water meter housing and a rotary wing-type metering mechanism is installed on the lower part of the water meter housing. The metering mechanism includes a measuring chamber and a wing wheel for measuring the flow of water in the measuring chamber. The working principle is that the water flows from the water inlet of the case to the impeller in a tangential direction to make it rotate, and then the number of revolutions of the impeller is continuously recorded through a gear reduction mechanism, thereby recording the cumulative flow through the water meter. The disadvantage of this structure is that the water flow guided by the guide hole near the inlet of the water meter is fast and the pressure is high, while the water flow guided by the guide hole far from the water inlet is slow and the pressure is low, and for the wing wheel, it is In addition to being driven by the tangential force of its rotation, it is also subjected to a radial force that forces it to deviate from the axis, so that the frictional resistance increases, resulting in a decrease in the sensitivity of the water meter. The bearing on the wing wheel axle also causes unilateral wear and wear. Its sensitivity is further reduced, which shortens the service life of the water meter and increases the user's use cost.
On the other hand, most of these water meters use copper, cast iron, and other metal materials, and rust easily causes secondary pollution of the water quality. How to reduce the occupation of nonferrous metal resources and provide a healthy and environmental-friendly water meter in the production of civilian water meters has become a problem faced by many water meter manufacturers.
Summary of the Invention The object of the present invention is to provide an electronic wing type smart small-diameter water meter aiming at the deficiencies of the prior art.
The technical scheme adopted by the present invention to solve its technical problems is: an electronic wing type intelligent small-diameter water meter, including an inlet joint, a circuit board, a battery, a circuit board bracket, a circuit board pressure plate, a water outlet joint, a base table, and a housing The battery supplies power to the circuit board and the speed reducer; the circuit board and the speed reducer are connected; the battery and the speed reducer are respectively fixed on the circuit board bracket and the base meter through the circuit board pressure plate; the circuit board has a liquid crystal display; the water meter also includes Metering system, water inlet fittings, metering system and outlet fittings are connected in turn, and the inlet fittings, metering system and outlet fittings are all installed on the base table; the cover is on the base form, so that the board is sealed off from the outside world . 
The picture shows the schematic diagram of the vertical small-diameter water meter
The metering system includes a movement and a signal circuit board, a signal lever, a gasket, and a signal lever press sleeve; the movement includes an upper part of the movement, two thimbles, magnetic steel, two agates, a helical wing impeller, and a lower part of the movement; The root thimble is mounted on the upper part of the movement and abuts the agate on the upper part of the wing impeller; the other thimble is mounted on the lower part of the movement and resists the agate at the lower part of the wing impeller; the magnetic steel is mounted on the wing impeller; the movement passes through the water inlet The connector is fixed on the base meter; the signal circuit board is connected with the circuit board; the signal circuit board is located inside the signal lever; the signal circuit board and the signal lever are fixed on the signal lever press sleeve through the gasket; the signal lever press sleeve is fixed on the base meter; The signal rod receives the magnetic field signal of the magnetic steel on the wing impeller and transmits it to the circuit board through the signal circuit board. The circuit board receives the pulse signal, and the pulse signal is digitally processed and converted into a flow value displayed on the liquid crystal display.
The electronic wing type intelligent small-diameter water meter also includes an on-off control system, in which a water inlet joint, a metering system, an on-off control system and a water outlet joint are connected in turn, and the on-off control system includes a valve cushion, a valve ball and a speed reducer. And the valve stem; the valve ball is fixed on the base table through the valve pad, and the circuit board, the speed reducer, the valve stem and the valve ball are connected in turn, and the circuit board controls the rotation of the valve ball through the speed reducer and the valve stem. It also includes a water filter net installed at the front end of the inlet joint. Also included is a check valve that is installed at the end of the outlet fitting.
The beneficial effect of the invention is that the invention adopts a wing-wing impeller to realize the straight-in and straight-out of water flow, which can reduce the friction between the fluid and the watch, increase the sensitivity of the water meter, extend the service life of the watch, and have a simple structure.
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[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduced a national invention-invented patent - electronic wing-type smart small-diameter water meter. The patent was applied for by Hangzhou Jingda Electronics Co., Ltd. and was authorized on February 15, 2017.