The utility model discloses a hydraulic drive equipment, including valve gap, main valve stopper 13 and guide's disk seat, the upside surface mounting of valve gap has lower valve body, the lower sidesurface intermediate position department of valve gap installs the bolt, the intermediate position department of valve gap installs the main valve spring near the upside of bolt, the last side surface near the main valve spring in the intermediate position department of valve body is down installed to main valve stopper, the left side surface intermediate position department of valve body is provided with the filter screen down, the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization, the seal ring that the casing junction set up can the permeability of effective control liquid in the cavity for valve body internal pressure reaction is obvious, and pressure -relief is good, provides a high platform to follow -up driven accurateaction, and the fluid can bring some foreign particles in the transmission course unavoidably in addition, and the kneck is provided with the filter screen now, greatly increased the life and the reliability of valve body.