Cleaning device for cleaning inner wall of vertical oil tube

The invention relates to a pipeline cleaning device, in particular to a cleaning device for cleaning the inner wall of a vertical oil tube. The cleaning device comprises a hole ejector and an ejectionsleeve, wherein the ejection sleeve is used for ejecting the hole ejector, the hole ejector is located in the ejection sleeve, the ejection sleeve comprises a clamping guide sleeve and an ejection switch which can be triggered, the ejection switch is installed at the bottom of the clamping guide sleeve, the top end of the ejection switch is connected with a connecting rod, a blocking piece on thetop end of the connecting rod is connected with a connecting shaft of the hole ejector, a compressed ejection spring sleeves the connecting rod on the bottom end of the blocking piece, the bottom endof the ejection switch is connected with an ejector rod, the ejection switch comprises a cylinder, a steel ball and a spring, the steel ball is located in a round cavity of the cylinder, and the spring is arranged on one end o