CN100455995C - Rotary Cup Agricultural Water Meter - Google Patents

Abstract

The invention discloses a rotary cup type agricultural water meter, which includes a meter body composed of a tubular flow channel and a counting chamber, and a sealing partition is arranged between the tubular flow channel and the counting cavity, which is higher than the upper wall of the pipeline , a rotating shaft is installed between the bottom of the partition and the lower wall of the tubular flow channel, and a cup wheel is installed symmetrically on the center line of the water flow on the rotating shaft, and a streamlined deflector is arranged in front of the cup wheel. A bracket is fixed on the upper wall of the road at the same height, and a permanent magnet is installed on the two ends of the bracket with a gap with the partition plate. A magnetic induction receiver is arranged corresponding to the permanent magnet in the counting chamber, and a counting display device is connected to the magnetic induction receiver. The counting display device mentioned above may be an electronic counting device or a mechanical counting device. The invention uses a streamlined deflector plate and a cup-type impeller, which is not easy to block and can achieve the purpose of small water head loss.

Description

Rotary cup type agricultural water meter

Technical field:

The present invention relates to surveying instrument, the rotary cup type agricultural water meter that uses during particularly a kind of suitable field irrigation.

Background technology:

Existing irrigation pipeline formula metering water meter commonly used, impeller blade is mainly turbotype structure, and its shortcoming is: the loss of flood peak is big, easily stops up, and is difficult to satisfy the metering of big caliber water delivery, the service condition that incompatibility farmland irrigation water flow is big, water quality is relatively poor.

Summary of the invention:

It is little to the purpose of this invention is to provide a kind of loss of flood peak, and long service life can adapt to the rotary cup type agricultural water meter of big caliber water delivery requirement.

Technical solution of the present invention is finished as follows, it includes a table body of being made up of tubular type runner and counting chamber, between tubular type runner and counting chamber, exceed the pipeline upper wall and be provided with a seal diaphragm, a rotating shaft is installed below the dividing plate and between the tubular type runner lower wall, on the line of middle of the stream, be symmetrically installed with the cup wheel in the rotating shaft, in rotating shaft with the contour support that is fixed with of tubular type runner upper wall, leave the gap with dividing plate above the support two ends permanent magnet is installed, the corresponding magnetic induction receptacle that is provided with in the counting chamber with permanent magnet, be connected with a counting display device on the magnetic induction receptacle, it is characterized in that: be provided with a streamlined fair water fin in cup wheel the place ahead.

The present invention is difficult for stopping up, and can reaches the little purpose of the loss of flood peak with streamlined fair water fin and cup type impeller.To count the sealing of chamber and tubular type runner with dividing plate and separate, water can not enter the counting chamber, and reliable operation is used applicable on 〉=above the pipeline of 50mm.

Description of drawings:

Fig. 1 is a kind of structural representation that digital electronic unit is installed of the present invention.

Fig. 2 is a kind of structural representation that mechanical counting device is installed of the present invention.

Embodiment:

Table body 1 of the present invention is made up of tubular type runner 2 and counting chamber 9 two parts, between tubular type runner and counting chamber, exceed tubular type runner upper wall and be provided with a seal diaphragm 8, a rotating shaft 4 is installed below the dividing plate and between the tubular type runner lower wall, on the line of middle of the stream, be symmetrically installed with three cup wheels 5 in the rotating shaft, cup wheel the place ahead be provided with one can block the cup wheel before the streamlined fair water fin 3 of head, in rotating shaft with the contour support 6 that is fixed with of tubular type runner upper wall, there is certain interval that permanent magnet is installed with dividing plate above the support two ends, the corresponding magnetic induction receptacle 10 that is provided with permanent magnet in the counting chamber is connected with an electronic type counting display device 11 by lead on the magnetic induction receptacle.Also can be connected with a mechanical type counting display device 11 with gear train assembly 12 on the above-mentioned induction receptacle by axle.When adopting the electronic type counting display device, can directly read water yield value, also can be data remote, metering is very convenient by communication device.

Claims (1)

1. Rotary cup agricultural water meter, which includes a meter body composed of a tubular flow channel and a counting chamber. A sealing partition is provided above the upper wall of the pipe between the tubular flow channel and the counting chamber. A rotating shaft is installed between the lower wall of the tubular flow channel, and a cup wheel is symmetrically installed on the rotating shaft on the center line of the water flow. A bracket is fixed on the rotating shaft at the same height as the upper wall of the tubular flow channel. A permanent magnet is installed with a gap, and a magnetic induction receiver is provided corresponding to the permanent magnet in the counting cavity. A counting display device is connected to the magnetic induction receiver, and the feature is that a streamlined deflector is arranged in front of the cup wheel.

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