Method and system are provided for a quick connector for coupling conduits. The quick connector comprises a first piece including a radial slot and a first protrusion group, a second piece including a first slot group and a second slot group angled in a same direction, the first slot group is counterpart to the first protrusion group, and a third piece including a second protrusion group counterpart to the second slot group, where each slot of the first slot group faces a first side, and each slot of the second slot group faces an opposing, second side. In one example, the quick connector may include a locking mechanism and a feedback system.

Method and system are provided for a quick connector for coupling conduits. The quick connector comprises a first piece including a radial slot and a first protrusion group, a second piece including a first slot group and a second slot group angled in a same direction, the first slot group is counterpart to the first protrusion group, and a third piece including a second protrusion group counterpart to the second slot group, where each slot of the first slot group faces a first side, and each slot of the second slot group faces an opposing, second side. In one example, the quick connector may include a locking mechanism and a feedback system.

A gas switching device incudes a valve body, a switching assembly, and a manipulating member. The valve body has an inlet portion having an inlet passage and an outlet portion having an outlet port and a receiving chamber. A wall of the receiving chamber has a side opening communicating with the inlet passage. The switching assembly includes a plug member located in the receiving chamber. The manipulating member is detachably connected to the outlet port via the connecting end connected to the plug member, and a gas passage of the connecting end communicates with an axial hole of the plug member. The manipulating member drives the plug member to turn between a first position that an outer peripheral surface of the plug member closes the side opening and a second position that the through hole communicates with the side opening.

A device for connecting a cooling nozzle to a cooling lubricant supply for a grinding machine includes a central axis, a housing arranged for receiving the cooling nozzle, a rotary-linear transmission and a tube section. The rotary-linear transmission has a drive element, pivotable about the central axis, and a manual lever fixed to the drive element. The tube section is rotationally fixed in the housing and movable along the central axis by the rotary-linear transmission to be pressed against the cooling nozzle. The rotary-linear transmission may be a self-locking transmission. The drive element may have a thread structure which extends over less than a full revolution.

A nozzle cap adapter includes an adapter ring defining a first adapter ring end, a second adapter ring end opposite the first adapter ring end, and an interior void extending from the first adapter ring end to the second adapter ring end; a nozzle connector extending from the second adapter ring end of the adapter ring, the nozzle connector configured to rotatably engage a fire hydrant nozzle; and a latch coupled to the adapter ring and configured to removably lock the nozzle cap adapter onto the fire hydrant nozzle; a gasket housing extending into the interior void and defining a gasket groove, the gasket groove facing the second adapter ring end; and a gasket disposed within the gasket groove and configured to abut an end of the fire hydrant nozzle.

A nozzle cap adapter includes an adapter ring defining a first adapter ring end, a second adapter ring end opposite the first adapter ring end, and an interior void extending from the first adapter ring end to the second adapter ring end; a nozzle connector extending from the second adapter ring end of the adapter ring, the nozzle connector configured to rotatably engage a fire hydrant nozzle; and a latch coupled to the adapter ring and configured to removably lock the nozzle cap adapter onto the fire hydrant nozzle; a gasket housing extending into the interior void and defining a gasket groove, the gasket groove facing the second adapter ring end; and a gasket disposed within the gasket groove and configured to abut an end of the fire hydrant nozzle.

A coupling including a female part attached to one of two items, and a male part attached to the other. The female part has a projection extending only on one side of a plane parallel to a first axis of rotation and away from the end of a circular cylindrical hole and forming a segment of an inner surface. The tap of the male part includes a circular cylindrical proximal end. A groove is arranged in one, and a flange is arranged on the other one of the circular cylindrical inner surface and the proximal end, and the flange and groove are adapted such that the flange can slide in the groove about the first axis of rotation, when the tap is rotated in the hole. The distal end of the tap, in the direction along a second axis of rotation, is longer on one side of the second axis of rotation than on the opposite side.

The present invention relates to a connector, a connecting assembly and a tire repairing machine. The connector comprises: a circumferential side wall defining an interior cavity of the connector; a first end wall in which a first through hole is provided, the first through hole communicating the interior cavity with an exterior of the connector; a second end wall in which a second through hole is provided, the second through hole communicating the interior cavity with the exterior of the connector, wherein, the first through hole and the second through hole are both of a non-circular shape.

The present invention relates to a connector, a connecting assembly and a tire repairing machine. The connector comprises: a circumferential side wall defining an interior cavity of the connector; a first end wall in which a first through hole is provided, the first through hole communicating the interior cavity with an exterior of the connector; a second end wall in which a second through hole is provided, the second through hole communicating the interior cavity with the exterior of the connector, wherein, the first through hole and the second through hole are both of a non-circular shape.

A one-piece Storz-type fluid coupling and coupling system are disclosed that provide additional strength and a cleanout port that externally ejects debris away from the coupling. The one-piece Storz-type fluid coupling can include a flange portion including a circumferentially and radially extending base wall, an annular hub extending axially away from a radially inward portion of the base wall and having an annular axially-facing sealing surface, a pair of diametrically opposite lugs projecting axially away from the base wall, an outer wall extending circumferentially and axially outwardly from the base wall, coupling flanges extending circumferentially and radially inwardly from the outer wall and having lug retention lips, lug entry/exit pockets located between the lugs and the lug retention lips, lug retention channels located between the lug entry/exit pockets and the lugs, and cleanout ports located circumferentially between the lugs and lug retention pockets.