The utility model discloses a crude oil sampling ware snaking device belongs to the petroleum equipment field. Crude oil sampling ware snaking device includes: siphonozooid, lead screw and seal assembly, the lead screw sets up in the siphonozooid, just with siphonozooid threaded connection, the siphonozooid outside is provided with the external screw thread, and the external screw thread matches with the internal thread of isolating valve export, seal assembly sets up in the siphonozooid, and the lead screw passes seal assembly and forms the movive seal with seal assembly. The utility model discloses a set up the lead screw and the seal assembly that are formed with the movive seal in the siphonozooid, and the siphonozooid can with the export threaded connection of isolating valve on the crude oil sampling ware for when clearance dirt layer need not to close oil pipeline, has solved when using in the correlation technique crampon to clear up the dirt layer, has seriously influenced oil pipeline's normal use's problem. Reach can be the swiftly convenient clearance dirt layer of operating personnel and do not influenced oil pipeline's normal use's effect.