Plug-in mounting type bidirectional lock

The utility model discloses a cartridge two way lock comprising a valve body, two sets of one way lock groups each of which is positioned in the valve cavity of the valve body, a shoot valve sleeve sealing communicated with the valve cavity by the use of thread, and a valve base, a valve core arranged in the valve sleeve, a valve pole and a return spring for operating the valve core open and close, and a liquid inlet and outlet are also provided which are arranged on the valve body and communicated with the valve cavity which is in plate type structure; the bottom thread of the valve pole connects to a piston; the valve bas, the valve core and the return spring are bottom to top arranged on the valve pole; the valve sleeve extends out of the valve body, whose ends is provided with thread plug; the liquid inlet of the two sets of one way lock groups realize connection via the shoot provided on the valve body. Thanks to putting the valve base, the valve core and the return spring of the one way valve group orderly from bottom to top on the valve pole in active cooperation way, the utility model perfectly simplifies the maintaining and installing work in the special circumstance of underground.