| 摘要 |
PURPOSE: A no-load quick coupler is provided to easily connect a plug to the coupler and to easily detach by relieving load inside the coupler or a hose when detaching the plug. CONSTITUTION: A no-load quick coupler comprises a body(102), a sleeve(104), a piston holder(116), a piston, a piston spring, and a plug(106). The body comprises a piston connection unit and a plug connection unit. The sleeve is connected to the outside of a coupler body and is slid to left and right. The piston holder is connected to an inner side of the coupler body. The piston is connected to the piston connection unit and comprises a spring connection unit. The piston spring is equipped between the piston holder and the piston, is connected to the spring connection unit, and pushes the piston to one side direction. The plug is moved to one side direction by the piston.
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