The utility model discloses a high-precision integrated valve group for replacing a stacked
hydraulic control one-way valve, which comprises an electro-hydraulic directional control valve, a stacked double one-way
throttle valve is arranged below the electro-hydraulic directional control valve, a change-over valve block component is arranged below the stacked double one-way
throttle valve, a plug-in logic valve and a plug-in
electromagnetic valve are arranged, and the plug-in logic valve and the plug-in
electromagnetic valve are connected with the electro-hydraulic directional control valve. The plug-in type logic valve and the plug-in type
electromagnetic valve are used for replacing a
hydraulic control one-way valve, and the loop has the advantages that the plug-in type
reversing valve can control the logic valve to be closed and opened in an internal control or external
control mode, the
control mode is more stable, the
leakage rate is smaller than that of the
hydraulic control one-way valve, the position of an executing mechanism can be effectively controlled, and the plug-in type
reversing valve is still installed in a stacked mode. A hydraulic loop is small in change, convenient to install, good in interchangeability, accurate in fixing position of an executing mechanism, small in valve set leakage amount, capable of keeping the position of the executing mechanism for a long time, capable of improving safety of a hydraulic
system, capable of reducing cost of a valve block, high in integration and capable of reducing occupied space of the valve set.