Straight liquid type water isolator

The invention provides a straight liquid type water isolator. The straight liquid type water isolator comprises an outer circular wall, a bottom circular wall, a plurality of parallel water isolation layers and a connecting column. At least one groove is formed in the surface of the connecting column. The water isolation layers are arranged between the outer circular wall and the bottom circular wall. The connecting column is connected with the outer circular wall and the bottom circular wall and penetrates the multiple water isolation layers. An ink storage structure formed by the straight liquid type water isolator divides ink layer by layer. Compared with a roll-packing core ink storage structure, the straight liquid type water isolator is more stable and more superior in performance. According to a gel pen with the straight liquid type water isolator, the ink filling amount can be increased multiply, the writing length of the product can be greatly increased, all indexes are higher than the requirements o