Simple instant mud measuring instrument

The utility model discloses a simple instant mud measuring instrument in the technical field of building construction auxiliary equipment. Including a sleeve, an extension cylinder is clamped at the left part of an inner cavity of the sleeve; chutes are formed in the right parts of the front and rear walls of the sleeve; a sliding block is clamped in an inner cavity of the sliding groove; a rotating shaft is clamped between the visible walls of the sliding blocks; the outer wall of the rotating shaft is screwed with a fastening nut; the inner wall of the fastening nut is in contact with the outer wall of the sliding block; a bobbin is clamped on the outer wall of the rotating shaft; a rope is wound on the outer wall of the bobbin; one end of the thread rope is connected with a pulp cup; according to the device, the specific gravity of slurry can be rapidly detected at any time on a construction site, so that whether materials such as bentonite need to be added to improve slurry parameters or not and whether t