A quick connector includes a valve body and a rotatable ring fitting over the valve body. The rotatable ring is rotatable with respect to the valve body. When a sealing member of the rotatable ring is rotated to a full open position, an exit end and an entrance end of the valve body are both encompassed by an opening of the sealing member and communicating with each other. When the sealing member is rotated from the full open position to a full close position, one of the exit end and the entrance end is moved out of the opening and blocked by the sealing member, so that the entrance end and the exit end do not communicate with each other.

A tube fitting including a sleeve member having a circumferential collar portion, the circumferential collar portion including a first tapered surface, a first coupling member having a circumferential engagement flange portion configured to couple with the circumferential collar portion of the sleeve member, and a second coupling member that includes a longitudinally extended sealing portion. The longitudinally extended sealing portion includes a second tapered surface that couples with the first tapered surface so as to circumferentially expand the longitudinally extended sealing portion, when the first tapered surface and the second tapered surface are coupled to each other, and form a fluid seal between the second coupling member and the sleeve member.

A connector assembly and method of making and ensuring a reliable, fluid-tight connection is provided. The assembly includes a housing a having a wall bounding a bore extending along a central longitudinal axis. The wall has a locking opening, a slot, and a window. A retaining member has a cylindrical wall received in the bore of the housing. The cylindrical wall has a detent received in the locking opening and a locking arm cantilevered by a hinge connection for pivotal movement. The locking arm is spaced from the cylindrical wall by a gap and is received in the slot when the detent is received in the locking opening. A visual indicator attached to the cylindrical wall moves radially outwardly into the window in response to the collar being fully received in the gap to provide visual evidence of a fluid-tight seal between the insertion member and the housing.

A dual-latch system requiring two distinct and sequential operations to verify that a proper connection has been made is disclosed. In the first operation, the fluid line is installed into the quick connector and is attached. In the second operation, the fluid line is locked into the quick connector using a separate sliding lock latch. The connector assembly comprises a housing having an inner bore for receiving a portion of the fluid line, a spring latch having radially-spaced engaging bodies for engaging the raised upset or bead of the fluid line, and a sliding lock latch having spring release interference abutments. The sliding lock latch is movable from an unlocked position in which the abutments allow movement of the engaging bodies relative to the raised upset or bead to a locked position in which the abutments restrict movement of the engaging bodies to the raised upset or bead engaging position.

The invention relates to a fitting for permanently connecting to at least one tube, the fitting including: a main body; a retaining element which has locking elements for locking to a corresponding locking element of the tube to be connected; a sealing element; and a blocking ring, the blocking ring allowing movement of the retaining element in the radial direction in a first axial position and preventing movement of the retaining element outwards in the radial direction in a second axial position. Said fitting solves the technical problem of providing a fitting suitable for permanently connecting tubes.

A sealing vibrational-counterrotation-proof hose joint capable of solving the poor sealing performance and the poor vibrational-counterrotation-proof performance of the prior hose joints, comprising a joint main body and a screw cap; a connecting section is arranged on the joint main body, and the screw cap is connected to the connecting section; the connecting section is provided with hooking claws; a squeezing section is arranged on the screw cap, and the squeezing section can squeeze the hooking claws, thereby enabling the hooking claws to bend towards the central axis of the joint main body; the screw cap is provided with locking blocks; the side wall of the connecting section is provided with locking grooves and a plurality of spiral guide bars; the spiral guide bars are uniformly distributed in a circumferential direction by taking the central axis of the joint main body as the center.

An adapter for an expandable hose is an apparatus used to connect an expandable hose to other fluid management tools. The apparatus is also configured to prevent leakages in multi-channel expandable hoses. An objective of the apparatus is to provide a connection for expandable hoses. The apparatus is designed to prevent leakage between expandable hoses and the apparatus. A threaded connector enables attachment of the expandable hose to other hoses. Another unit fits inside the inner channel of an expandable hose, while a third part surrounds the inner channel of the expandable hose. An annular fastener secures the outer channel of the expandable hose to the inner channel. A cover or housing may be added to protect components from damage due to external stimuli. Altogether, the apparatus enables a user to securely attach an expandable hose to a spout, faucet, spicket, another hose, or a variety of other devices.

Fluid coupling (10), comprising: a first member (20) configured for connection with a first fluid conduit (16); a second member (30) configured for connection with a second fluid conduit (18); a nut (50) disposed at least partially around the first member (20), the nut (50) configured to engage the second member (30); and a sleeve (60) configured to rotate the nut (50) and cause or facilitate engagement between the nut (50) and the second member (30).

An adapter for connecting a separated-outlet fluid cartridge to a single-inlet static mixer includes a locking portion and a connecting portion. The locking portion has at least one locking element to lockingly engage the mixer housing so as to inhibit rotation between the locking portion and the housing. The connecting portion is received within the locking portion and has first and second fluid inlet members to be coupled to respective first and second fluid outlets of the cartridge for receiving fluid from the cartridge, and a fluid outlet member is sealingly coupled to the mixer for directing fluid into the mixer. The locking portion is selectively rotatable about the connecting portion between unlocked and locked positions relative to the cartridge when the connecting portion is coupled to the cartridge. Consequently, the adapter advantageously enables dispensing with a separated-outlet fluid cartridge in combination with a single-inlet static mixer.

Non-removable connection system (100) for a medical apparatus comprising a first connector (1) comprising a fluid coupling portion (2), a second connector (11) comprising a respective fluid coupling portion (12) connectable to the fluid coupling portion (2) of the first connector (1), wherein the second connector (11) comprises a hooking portion (13) and at least one locking projection (14). The non-removable connection system (100) also comprises a collar (20) coupled to the first connector (1) and comprising a respective hooking portion (23) engageable to the hooking portion (13) of the second connector (11) through an engagement rotation (ER), wherein in a engaged configuration the hooking portions (23, 13) prevent axial removal of the collar (20) from the second connector (11). The collar (20) further comprises respective locking projections (24) engageable to the locking projections (14) of the second connector (11) through the engagement rotation; in a coupled configuration the locking projections (24, 14) prevent a disengagement rotation of the collar (20) with respect to the second connector (11).