Bridge type concentric profile control water distribution device

The invention provides a bridge type concentric profile control water distribution device. The bridge type concentric profile control water distribution device comprises an upper connector, a connecting sleeve, a working cylinder and a lower connector which are sequentially connected from top to bottom, wherein a positioning shaft is arranged in the connecting sleeve, a testing and regulation interface is formed in the positioning shaft, a tapered movable water nozzle is arranged in the working cylinder, and the lower end of the testing and regulation interface is connected with the tapered movable water nozzle. The bridge type concentric profile control water distribution device can effectively prevent mechanical shear effect, enables viscosity loss of a polymer solution to be reduced and ensures the viscosity retention rate in the profile control process. In addition, an overflow end face has a better throttling role, flow-limiting resistance is large, throttling pressure difference is large, and two functions of separated layer water injection and chemical profile control of the device are achieved.