Spark plug guide pipe dismounting tool

The utility model discloses a dismantling tool for spark plug pipe, which is characterized in that: a pulling rod (2) whose middle section is polished rod and having threads at both ends. A nut (1) is arranged in the one end of the pulling rod while the other end is expansion bolt whose outer end is cone-shaped. A power steering hammer (3) is sleeved with the middle section of the said pulling rod (2). A flexible expansion sleeve (5) is threaded connected with the bolt of said pulling rod (2). The outer end inner hole of the flexible expansion sleeve (5) is cone-shaped hole matching with the upper cone-shaped end of the pulling rod (2). Seam is opened in the outer end of the flexible expansion sleeve (5), which divides the wall of the flexible expansion sleeve (5) into 3-6 segments. A positioning sleeve is sleeved with the flexible expansion sleeve (5). The dismantling tool is simple in structure, easy and rapid to dismantle, and without the damage of the spark plug pipe, which can guarantee the re-use of the spark plug pipe.