Self-sealing hydraulic device

A self-sealing hydraulic device comprising:

• a connecting assembly having
• a hose with a channel therein;
• and
• an adaptor having
• a shell having
• an axis;
• a first end face;
• a second end face;
• a protrusion disposed adjacent to the second end face of the shell;
• a fillet portion connected to the protrusion and contacted by an O-ring mounted on and around the protrusion;
• an activity chamber formed inside the shell and having a bottom;
• a first recess defined in the first end face;
• a second recess defined in the second end face of the shell;
• a bore defined in the bottom of the activity chamber, the activity chamber and the second recess communicating with each other via the bore;
• a male fitting mounted in the shell, being moveable relative to the shell along the axis of the shell, and having
• a first end;
• a second end opposite the first end of the male fitting;
• an abutting portion extending till the second end of the male fitting, passing through the bore, and extending out of the second recess;
• a blocking portion disposed at the first end of the male fitting, received in the activity chamber, and capable of being blocked by the bottom of the activity chamber;
• an axial hole radially defined through the abutting portion and disposed between the first end of the male fitting and the second end of the male fitting, and extending along the axis of the shell;
• a radial hole orthogonally communicating with the axial hole and sealed by the shell;
• and
• an indention formed in the abutting portion, disposed at the second end of the male fitting, and communicating with the radial hole via the axial hole;
• a barb fitting connected to and communicating with both the shell and the hose;
• wherein when the male fitting is mounted to the shell, the blocking portion abuts against the bottom of the activity chamber to block the bore and the activity chamber, and the radial hole is disposed in the bore;
• and
• a hydraulic assembly being assembleable to the connecting assembly and having
• a housing having
• a hydraulic chamber;
• and
• an assembling hole communicating with the hydraulic chamber via a through hole;
• an elastic element disposed in the housing;
• and
• a valve unit disposed inside the hydraulic chamber and driven by the elastic element to seal the through hole;
• wherein when the connecting assembly is connected to the hydraulic assembly, the fillet portion pushes the O-ring to abut against a bottom of the assembling hole to prevent leakage from the housing;
• when the connecting assembly is connected to the hydraulic assembly, the second end of the male fitting abuts against the valve unit, and the blocking portion is detached from the bottom of the activity chamber to make the bore communicate with the activity chamber;
• wherein when the connecting assembly is connected to the hydraulic assembly, the adaptor is inserted in the assembling hole, and the male fitting and the valve unit drive each other mutually to make the radial hole and the through hole unsealed by the shell and the valve unit respectively and to make the connecting assembly and the hydraulic assembly communicate with each other;
• and
• when the connecting assembly is detached from the hydraulic assembly, the adaptor moves out from the assembling hole, and the male fitting is detached from the valve unit to make the radial hoe and the through hole sealed by the shell and the valve unit respectively.