Downhole measuring and regulating apparatus with an overhead flowmeter

The utility model relates to a downhole measuring and regulating apparatus with an overhead flowmeter, which comprises a cable head, a casing body, a motor, a guiding mechanism, a water flow passage, a regulating arm, a driving shaft, a plugging apparatus and a butt joint. The utility model is characterized in that the flowmeter is positioned above the regulating mechanism which extends and shrinks the regulating arm by a spring, a steel rope and a one-way ratchet mechanism, the output of the force moment of the motor drives the shaft by a telescopic universal joint. The utility model has the advantages that the utility model can be used for common eccentric water injectors as well as bridge type eccentric water injectors, and thus, the utility model enlarges the application range. Besides, the regulating arm of the downhole measuring and regulating apparatus can be retracted by power.