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.

A line coupling assembly for a motor vehicle includes a line coupling, a first line, and a second line which can be coupled to the first line via the line coupling, wherein at their coupling-side ends, which are supposed to be connected, the lines each have a coupling component which, when the lines are completely coupled, interact such that the lines are tightly coupled together. When the lines are not completely coupled, the coupling components interact such that there is a defined inspection gap near the line coupling.

A line coupling assembly for a motor vehicle includes a line coupling, a first line, and a second line which can be coupled to the first line via the line coupling, wherein at their coupling-side ends, which are supposed to be connected, the lines each have a coupling component which, when the lines are completely coupled, interact such that the lines are tightly coupled together. When the lines are not completely coupled, the coupling components interact such that there is a defined inspection gap near the line coupling.

There is provided a tube coupling configured to connect and couple two tubes that are configured to cause a fluid to flow inside the two tubes. The tube coupling includes: a male connector including an insertion part having a protruding shape protruding in an axial direction that is an insertion direction; and a female connector including an insertion receiving part having a recessed shape recessed in the axial direction and coupled to the insertion part when the insertion part is inserted into the insertion receiving part. The insertion part includes a projection disposed on a side surface of the male connector. The insertion receiving part includes a first through hole on a side surface of the female connector. The first through hole extends in a direction inclined with respect to the axial direction, and is configured to allow the projection to move in the first through hole.

There is provided a tube coupling configured to connect and couple two tubes that are configured to cause a fluid to flow inside the two tubes. The tube coupling includes: a male connector including an insertion part having a protruding shape protruding in an axial direction that is an insertion direction; and a female connector including an insertion receiving part having a recessed shape recessed in the axial direction and coupled to the insertion part when the insertion part is inserted into the insertion receiving part. The insertion part includes a projection disposed on a side surface of the male connector. The insertion receiving part includes a first through hole on a side surface of the female connector. The first through hole extends in a direction inclined with respect to the axial direction, and is configured to allow the projection to move in the first through hole.

An apparatus for coding a first connection partner and a second connection partner of a bayonet lock. The first connection partner has at least two locking arms for locking the connection and is arranged on a fluid line adapter. The second connection partner has a flange ring for guiding through the first locking partner with a number of recesses which corresponds to the number of locking arms for guiding through the locking arms and is arranged on an adapter receiving member. A first locking arm has a different geometry from the other locking arms. A first recess which is associated with the first locking arm has a compatible geometry for positioning the first connection partner and the second connection partner in a predefined position, and the additional recesses have a different geometry which is not compatible with the first locking arm. The apparatus further has a mechanical coding device.

An apparatus for coding a first connection partner and a second connection partner of a bayonet lock. The first connection partner has at least two locking arms for locking the connection and is arranged on a fluid line adapter. The second connection partner has a flange ring for guiding through the first locking partner with a number of recesses which corresponds to the number of locking arms for guiding through the locking arms and is arranged on an adapter receiving member. A first locking arm has a different geometry from the other locking arms. A first recess which is associated with the first locking arm has a compatible geometry for positioning the first connection partner and the second connection partner in a predefined position, and the additional recesses have a different geometry which is not compatible with the first locking arm. The apparatus further has a mechanical coding device.

An agricultural vehicle includes a coupling structure for making a tool-less attachment between a first connector piece and a second connector piece. The first connector piece has at least one pin, and the second connector piece has at least one slot adapted to receive the pin in a receiving pocket that is circumferentially spaced from an axially-open inlet portion of the slot. The slot includes an inlet ramp between the slot inlet portion and the receiving pocket, and the inlet ramp is less steeply angled than a second ramp surface that forms a portion of the receiving pocket adjacent the first ramp.

Improved couplings for conduit systems include a male coupling and a female coupling. The male coupling and female coupling may be mechanically engaged by inserting the male coupling into a receiver in the female coupling until fastening structures are aligned, and then rotating one or both of the male and female couplings until the fastening structures are overlapping and in interfacial engagement. The male and female couplings provide an efficient coupling solution for end-to-end conduit connection and also addresses a leakage problem in conventional irrigation pipe couplers.

Improved couplings for conduit systems include a male coupling and a female coupling. The male coupling and female coupling may be mechanically engaged by inserting the male coupling into a receiver in the female coupling until fastening structures are aligned, and then rotating one or both of the male and female couplings until the fastening structures are overlapping and in interfacial engagement. The male and female couplings provide an efficient coupling solution for end-to-end conduit connection and also addresses a leakage problem in conventional irrigation pipe couplers.