Patent ID: 11953029
Assignee: KUDOS MECHANICAL CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 4:
5. The automatic oil return structure as claimed in claim 4, wherein
the main controlling channel has an accommodating space, a first opening, a second opening, and an extending segment; the accommodating space is connected to the piston oil channel; the first opening and the second opening are respectively located on two ends of the accommodating space; the first opening is connected to the connecting channel; the second opening is connected to the extending segment; the extending segment is connected to the automatic oil reflow channel; and
the main blocking unit has a blocking unit main body and a gasket; the blocking unit main body and the gasket are moveably mounted in the accommodating space; an outer annular edge of the gasket is disposed contiguous to an inner wall of the accommodating space and configured for displacement with respect to an axial direction of the accommodating space; the main elastic unit pushes the gasket and makes the gasket push the blocking unit main body to block the first opening; when the pressure in the connecting channel increases, the blocking unit main body and the gasket are first pushed away from the first opening and are moved toward the second opening together till the blocking unit main body blocks the second opening, and then the gasket continues to move towards the second opening and detaches from the blocking unit main body as the pressure in the connecting channel continues to increase, forming a path that connects the connecting channel and the piston oil channel between the gasket and the blocking unit main body.