Air column bending structure

The utility model discloses an air column bending structure which comprises an air column body, a pipe body of the air column body is provided with a cutting opening, and the periphery of the inner side wall of the cutting opening is provided with a circle of heat sealing area used for connecting the upper side and the lower side of the cutting opening in a sealing mode so that the left side and the right side of the cutting opening can be bent after being in butt joint. A connecting channel with the pipe diameter smaller than that of the air column body is formed in the side, away from the cutting opening, of the bent position. The utility model has the advantages of simple structure, lower cost, easiness in processing and higher percent of pass. 本实用新型公开了一种气柱折弯结构，包括气柱本体，所述气柱本体的管身上设有裁切口，所述裁切口内侧壁的周边设有一圈用于密封连接裁切口上下两侧的热封区，以使得所述裁切口的左右两侧对接后能形成折弯，并且使得折弯处背离裁切口的一侧形成管径小于气柱本体管径的连接通道。本实用新型具有结构简单、成本较低、加工容易且合格率较高的优点。