The utility model discloses a closestool cover plate quick release connecting
pipe assembly, which comprises a connecting
pipe and two lock catch mechanisms, each lock catch mechanism comprises a push rod, a fixed shaft, a
damper and a lock catch spring, a rotating shaft of the
damper is exposed out of the connecting
pipe when the lock catch mechanism is inserted into the connecting pipe and reaches a working position, and the lock catch spring is inserted into the connecting pipe. The fixing shaft is provided with a first elastic column, the connecting pipe is provided with a positioning hole, and the first elastic column is bounced into the positioning hole when the
locking mechanism reaches the working position. The first elastic column is pressed to leave the positioning hole and pushes the
damper inwards, so that the damper and the fixing shaft can compress the lock catch spring and then move inwards till the rotating shaft of the damper retracts into the connecting pipe. The lock catch mechanism is assembled and positioned through the first elastic column of the fixing shaft and the positioning hole of the connecting pipe, and the arrangement that the inner side direction reaches the limiting position when the push rod reaches the working position is combined, so that assembling and mounting of the quick-release connecting pipe
assembly are more convenient and faster.