Fixable shuttle valve structure

A first oil duct, a second oil duct and a third oil duct are arranged in a valve body, a first oil port is communicated with a second oil port through the first oil duct, a third oil port is communicated with a fourth oil port through the second oil duct, and the first oil duct is communicated with the second oil duct through the third oil duct. One end of the third oil channel penetrates through the valve body and is provided with a port, the third oil channel is communicated with the fifth oil port, the port of the third oil channel is connected with the screw plug in a sealing mode through a sealing gasket, and the third oil channel is provided with a step-shaped reducing structure. And the requirement in an excavator hydraulic system is met, installation is convenient, time is saved, fixation is firm, and good practicability is achieved. 本实用新型公开了一种可固定式梭阀结构，阀体内部设置有第一油道、第二油道、第三油道，第一油口与第二油口通过第一油道连通，第三油口与第四油口通过第二油道连通，第一油道与第二油道通过第三油道连通，第三油道的一端贯通阀体并且设置有端口，第三油道与第五油口连通，第三油道的端口与螺塞通过密封垫密封连接，第三油道设置有阶梯状的变径结构，本实用新型结构简