Split combined type bag hole sealing device

The utility model provides a split combined type bag hole sealing device, is including establishing at slip casting pipe, return pipe and PVC pipe in the drilling, the both sides of PVC pipe are overlapped respectively and are equipped with cotton -flax bag B and cotton -flax bag A, the slip casting pipe pass cotton -flax bag B and get into cotton -flax bag A, the slip casting pipe is located and is equipped with the tee bend check valve on the pipeline section of two cotton -flax bag positions departments respectively, the slip casting pipe is located and is equipped with the explosion valve to the high water expanding material of drilling injection on two pipeline sections between the cotton -flax bag, the return pipe through sealing ring and cotton -flax bag B fixed seal, slip casting pipe through sealing ring and cotton -flax bag A fixed seal. Can accomplish to send earlier the pipe prevent drilling collapse the hole, prevent flushing, improved work efficiency in a large number, having alleviateed intensity of labour of in drilling gas, be convenient for connect and the split, can adjust hole sealing length according to the drilling actual conditions, its simple structure, convenient operation, the practicality is strong.