[Meter's latest patent] A high-sensitivity anti-return intelligent water meter

[Chinese instrument network meter patent] creative limit, instrumentation invention. Today, we introduced a national invention-issued patent—a high-sensitivity anti-backflow smart water meter. The patent was applied for by Xiamen Jingzhun Intelligent Water Meter Co., Ltd., and it was authorized on January 12, 2018.

Content Description

The invention relates to the technical field of water meters, in particular to a high-sensitivity anti-backflow smart water meter.

Background of the invention

With the continuous development of the industrial economy and the scale of the city, water meters as measuring instruments for measuring water flow are increasingly being installed and used in industrial and residential life. The water meter on the market is mainly driven by the flow of impeller blades to drive the rotation of the gear on the counter to measure water consumption.

In order to prevent the backflow phenomenon from occurring, the existing water meter is provided with a water inlet channel at the bottom of the watch core outer box of the inner core of the water meter, and a pressure water slice is arranged on the water inlet channel; when the water flows from the bottom of the watch core outer box When the channel enters, the water pressure plate will be opened by the water pressure, so the water flow can enter the inner core and drive the impeller to rotate. When the water flow is stopped or the water meter is flipped, when the water pressure is zero or opposite to the previous water pressure, the water pressure plate will block the water inlet passage due to the force of gravity or pressure, thereby preventing the backflow of the water flow. However, the existing water pressure pieces are generally made of plastic materials. If the water pressure piece is too small and the weight is too light, when the water pressure disappears, the water pressure piece cannot block the water channel due to the buoyancy in the water. As a result, the flow of water is reversed, which affects the sensitivity of the water meter. Therefore, the water pressure piece must have a certain density (usually achieved by increasing the water pressure piece). However, when the water flow is small, the water pressure cannot push the water pressure piece to open. This will cause water meters. Can not check the flow of the tiny water flow, thereby greatly reducing the sensitivity of the water meter.

Summary of the Invention

In order to solve the problems mentioned above in the background art, the present invention provides a high-precision anti-backflow smart water meter.

The figure is a schematic sectional view of the present invention

Including the watch case outer box and the impeller box; the impeller box is nested in the watch case outer box; the watch case outer box is provided with a sensitive control channel; the sensitive control channel communicates the inner wall and the outer wall of the watch box outer box, and the sensitive control channel is provided with Lightweight control parts, the diameter of the lightweight control part is larger than the bottom hole of the sensitive control channel; the bottom of the outer box of the watch core is provided with a water inlet channel; the upper side of the water inlet channel is provided with a pressure water piece; the weight of the light control part is less than the pressure Water quality.

The lower port of the sensitive control channel communicates with the water circulation hole provided on the watch case outer box; the lightweight control member is a light ball. The upper port of the sensitive control channel is provided with a blocking net. A limited position hole is arranged on the edge of the water pressure piece, and a limit position column is arranged on the bottom surface of the watch core outer box. The limit hole cooperates with the limit position column to confine the pressure plate to the outer bottom surface of the impeller box and the inner bottom surface of the watch case outer box. between. Pressure plates are provided with weight blocks. The inlet channel is a mesh hole. The side wall of the impeller box is provided with a fixed edge, and the fixed edge is an annular protrusion; a water inlet hole is arranged on the side wall of the impeller box below the fixed edge, and a water outlet hole is arranged on the side wall of the impeller box above the fixed edge; The notch of the hole and the sink hole is inclined in the opposite direction.

The side wall of the impeller box is provided with a fixed edge, and the fixed edge is an annular protrusion; a fixed column is provided with a calibration column; the lower port of the calibration column communicates the space formed by the impeller box and the watch core box, and the upper side of the calibration column is provided with Water gap. The upper end of the calibration column is provided with an adjustment groove. The impeller box is provided with an impeller blade. The impeller blade is provided with an impeller gear at the upper end thereof, and the impeller gear drives the gear in the dial to rotate.

The high-sensitivity anti-backflow intelligent water meter provided by the present invention uses a sensitive control channel in the watch core, and utilizes the light ball in the sensitive control channel and the through hole in the sensitive control channel to enable the water meter to detect the flow of weak water flow. , And then improve the sensitivity of the water meter, while the structure can prevent the water flow back to the number of water interference. The design is simple and practical, the manufacturing cost is low, and it has extremely high industrial value and application prospects.

For more information, please download the full specification of the patent.

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