Abstract: An endoscope connection tool includes a cylindrical portion having an inflow port connected to a fluid delivery apparatus, a discharge port discharging a fluid from the inflow port, and a flow path connecting the inflow port and the discharge port, a detection hole opened in an outer periphery of the cylindrical portion, and communicating with the flow path, a holding portion engaging with a pipe sleeve of an endoscope, and thereby holding the discharge port in a position facing an opening portion of the pipe sleeve, an urging member placed at the outer periphery of the cylindrical portion, and extending and contracting in a direction along the flow path, and a cover portion that is placed at the outer periphery of the cylindrical portion, moves to advance and retreat between a first position and a second position along the flow path by being interlocked with the urging member.

Abstract: A chemical bottle is inclined by a bottle push-up mechanism, and a chemical solution is gravitationally injected into a chemical tank from a chemical supply tube line. When a chemical tray is drawn out after completion of chemical injection, the bottle push-up mechanism returns to a planar initial state. In connection with this, the chemical bottle returns to an original set position in which the chemical bottle is in a horizontal state or a plug section faces upward with respect to a gravity direction. This prevents the chemical solution remaining in the chemical bottle from flowing to an outside by gravity.

Abstract: An endoscope connection tool includes a cylindrical portion having an inflow port connected to a fluid delivery apparatus, a discharge port discharging a fluid from the inflow port, and a flow path connecting the inflow port and the discharge port, a detection hole opened in an outer periphery of the cylindrical portion, and communicating with the flow path, a holding portion engaging with a pipe sleeve of an endoscope, and thereby holding the discharge port in a position facing an opening portion of the pipe sleeve, an urging member placed at the outer periphery of the cylindrical portion, and extending and contracting in a direction along the flow path, and a cover portion that is placed at the outer periphery of the cylindrical portion, moves to advance and retreat between a first position and a second position along the flow path by being interlocked with the urging member.

Abstract: A chemical bottle is inclined by a bottle push-up mechanism, and a chemical solution is gravitationally injected into a chemical tank from a chemical supply tube line. When a chemical tray is drawn out after completion of chemical injection, the bottle push-up mechanism returns to a planar initial state. In connection with this, the chemical bottle returns to an original set position in which the chemical bottle is in a horizontal state or a plug section faces upward with respect to a gravity direction. This prevents the chemical solution remaining in the chemical bottle from flowing to an outside by gravity.