A hydraulic coupling device (10) comprising a female coupling unit (30) comprising a female coupling body (31), a holding block (50), a guiding ring (60), and an expanding ring (70) for fixedly arranging the female coupling unit (30) to the holding block 50 in an opening (52a) of the holding block (50), wherein the guiding ring (60) comprises an outer surface (60a) comprising a thread surface portion (60a1) configured to engage with a thread surface portion (52c1) of a cylindrical portion (52c) of the opening (52a) of the holding block (50) fixedly arranging the guiding ring (60) to the holding block (50), wherein a seat (53) is provided in the opening (52) for supporting the expanding ring (70), wherein an outer surface (31a) of the front end of the female coupling body (31) comprises a circumferential groove (31f) comprising a groove seat (31g), configured to receive the expanding ring (70), wherein the female coupling unit (30) is adapted to be fixedly arranged to the holding block (50) by being suspended between the guiding ring (50) and the seat (53), wherein the expanding ring (70) is arranged as a support between the female coupling unit (30) and the seat (53).

A hydraulic coupling device (10) comprising a female coupling unit (30) comprising a female coupling body (31), a holding block (50), a guiding ring (60), and an expanding ring (70) for fixedly arranging the female coupling unit (30) to the holding block 50 in an opening (52a) of the holding block (50), wherein the guiding ring (60) comprises an outer surface (60a) comprising a thread surface portion (60a1) configured to engage with a thread surface portion (52c1) of a cylindrical portion (52c) of the opening (52a) of the holding block (50) fixedly arranging the guiding ring (60) to the holding block (50), wherein a seat (53) is provided in the opening (52) for supporting the expanding ring (70), wherein an outer surface (31a) of the front end of the female coupling body (31) comprises a circumferential groove (31f) comprising a groove seat (31g), configured to receive the expanding ring (70), wherein the female coupling unit (30) is adapted to be fixedly arranged to the holding block (50) by being suspended between the guiding ring (50) and the seat (53), wherein the expanding ring (70) is arranged as a support between the female coupling unit (30) and the seat (53).

A quick connector assembly includes a male adapter portion (24) having an end and a groove (62) formed therein spaced from the end. The male adapter portion has a through bore. A female housing portion (22) has a body having a through bore generally concentrically aligned with the male adapter portion through bore. A ring (26) cooperates with the female housing portion and the male adapter portion. The ring is in a first position when the male adapter is engaged with the female housing and a second position, different from the first position, when the male adapter is other than engaged with the female housing. The first and second positions can be visually different from one another.

A locking element (30) for releasably fixing a fluid-conducting plug (40) to a connector (10) that has at least one spring element (311) for a sprung preload into a locking position with at least one trigger element (35) for transferring from a receiving position into the locking position. At least two trigger elements (35) are provided on the locking element (30), wherein for a transfer to the locking position, a simultaneous actuation of the trigger elements (35) is required.

A locking element (30) for releasably fixing a fluid-conducting plug (40) to a connector (10) that has at least one spring element (311) for a sprung preload into a locking position with at least one trigger element (35) for transferring from a receiving position into the locking position. At least two trigger elements (35) are provided on the locking element (30), wherein for a transfer to the locking position, a simultaneous actuation of the trigger elements (35) is required.

A locking member is mounted to the housing to be able to move in the outer diameter direction by a tapered portion of the tubular body, when the tubular body is inserted. The housing is equipped with slits formed to pass a curved portion bent in the inner diameter direction disposed at a leading-end side of the locking member and to lock with the engagement portion of the tubular body mounted on the housing. A gap is disposed between the curved portion, and the end portion of the slit positioned at a side in an opposite direction to the leading-end side of the locking member, so that there is no contact while at least the locking member is moving.

A locking member is mounted to the housing to be able to move in the outer diameter direction by a tapered portion of the tubular body, when the tubular body is inserted. The housing is equipped with slits formed to pass a curved portion bent in the inner diameter direction disposed at a leading-end side of the locking member and to lock with the engagement portion of the tubular body mounted on the housing. A gap is disposed between the curved portion, and the end portion of the slit positioned at a side in an opposite direction to the leading-end side of the locking member, so that there is no contact while at least the locking member is moving.

A fluidic connection device for a fluid circuit of a motor vehicle includes a female fluidic connector, a U-shaped lock, and a locking indicator. The female fluidic connector includes a housing configured to receive a male fluidic connector, by translation along an axis (A). The U-shaped lock is carried by the female connector and includes a pair of elastically deformable legs that arranged substantially in a first plane, perpendicular to the axis (A) and on either side of the axis (A) and being configured to cooperate by elastic snap-fitting with the male connector to ensure retention of the male connector in the female connector along the axis (A). The locking indicator is carried by the female connector and configured to be translated in a second plane, perpendicular to the axis (A), between a first position for releasing the locking indicator and a second position for locking the locking indicator.

A fluidic connection device for a fluid circuit of a motor vehicle includes a female fluidic connector, a U-shaped lock, and a locking indicator. The female fluidic connector includes a housing configured to receive a male fluidic connector, by translation along an axis (A). The U-shaped lock is carried by the female connector and includes a pair of elastically deformable legs that arranged substantially in a first plane, perpendicular to the axis (A) and on either side of the axis (A) and being configured to cooperate by elastic snap-fitting with the male connector to ensure retention of the male connector in the female connector along the axis (A). The locking indicator is carried by the female connector and configured to be translated in a second plane, perpendicular to the axis (A), between a first position for releasing the locking indicator and a second position for locking the locking indicator.

A universal tube adaptor for a shock absorber includes a connector body, and first and second connectors. The connector body has intersecting first and second connecting holes respectively and rotatably receiving the first and second connectors rotatably therein. The first connector has a first guiding hole and an overflow hole perpendicular to, in fluid communication with, and cooperating with the first guiding hole to define an oil-filled space in fluid communication with the second connecting hole. The second connector has a second guiding hole in fluid communication with the second connecting hole and the overflow hole, so that the second guiding hole, the oil-filled space and the first guiding hole cooperate with one another to define an oil passage permitting damping oil to flow therein.