Endoscope cleaning tube

An endoscope cleaning tube comprising:

• a housing portion equipped with a fluid introduction port adapted to introduce a fluid and a fluid lead-out port adapted to lead out the fluid introduced through the fluid introduction port;
• a hook portion extending out from an outer surface of the housing portion in a lead-out direction of the fluid to connect the housing portion to a pipe sleeve;
• a movable portion placed movably between a first position and a second position in the housing portion, being equipped with a partition portion adapted to divide an inner part of the housing portion into a side of the fluid introduction port and a side of the fluid lead-out port and with an opening portion which is an opening provided in the partition portion, the second position being located closer to the side of the fluid lead-out port than the first position;
• a pressure-receiving portion which, being equipped with a pressure-receiving surface placed at a position facing the fluid introduction port and adapted to receive pressure of the introduced fluid and with a first end portion pivotably connected to an inner wall of the housing portion, is adapted to pivot according to an amount of the fluid pressure acting on the pressure-receiving surface;
• and
• a linking portion adapted to connect the pressure-receiving portion and the movable portion with each other and move the movable portion from the second position to the first position along with pivoting of the pressure-receiving portion when the pressure-receiving portion receives fluid pressure equal to or larger than a predetermined amount.