Electronic component installing device

An electronic component installing device comprising:

• a nozzle which holds an electronic component by applying a negative pressure to a suction hole that is open in a tip end portion of the nozzle;
• and
• a main shaft which includes a nozzle holder that detachably holds the nozzle in a lower end portion of the main shaft,
• wherein the nozzle holder has a tubular shape having an insertion hole into which an installed portion of the nozzle is inserted,
• wherein the nozzle holder includes
• a holder tube portion in which an opening portion leading to the insertion hole is formed on one side surface of the holder tube portion,
• one clamp lever which has an engaging portion engaged via the opening portion with the installed portion inserted into the insertion hole, and
• a first elastic member that is elastic and biases the engaging portion to the installed portion inserted into the insertion hole,
• wherein the clamp lever includes a fulcrum portion, a working unit that extends downward from the fulcrum portion, and an operation unit that extends upward from the fulcrum portion, and
• wherein movement of the operation unit in a first direction causes the clamp lever to turn about the fulcrum portion so that the engaging portion moves in a second direction opposite to the first direction.