The utility model discloses a valve convenient to
control flow, and relates to the technical field of valves, the left end of a valve main body is connected with a liquid inlet
flange, a partition plate is arranged in the valve main body, the right end of the valve main body is connected with a liquid outlet
flange, the top of the valve main body is connected with a connecting
pipe, and the top of the connecting
pipe is provided with a first sealing
flange; the top of the first sealing flange is connected with a second sealing flange, and the top of the second sealing flange is provided with a device
pipe. The top of the device pipe is connected with a worm, the right end of the worm is meshed with a
turbine, the bottom of the
turbine is connected with a
threaded rod, the bottom of the
threaded rod is meshed with a threaded sleeve, and the bottom of the threaded sleeve is connected with a check block. The worm is rotated to drive the
turbine to rotate, so that the
threaded rod rotates in the threaded sleeve, the threaded sleeve drives the check block to ascend and descend so as to open the notch in the middle of the baffle, and when the worm does not rotate, due to the fact that the worm and the turbine have the self-locking performance during meshing, the worm can lock the turbine.