A quick connector includes a connector body, a spring, a plurality of positioning balls, a push ring, a movable sleeve, a snap ring, and a locking structure. When a coupling is inserted into the connector body, the push ring is pushed the spring to press the positioning balls which press the coupling so that the coupling is locked onto the connector body. The movable sleeve is driven to return the push ring to release the coupling from the positioning balls. Thus, the movable sleeve is locked by the locking structure and cannot be moved any more so that the movable sleeve will not be driven inadvertently due to an external force and can press the positioning balls to lock the coupling so as to prevent the coupling from being detached from the connector body.

A quick connector includes a connector body, a spring, a plurality of positioning balls, a push ring, a movable sleeve, a snap ring, and a locking structure. When a coupling is inserted into the connector body, the push ring is pushed the spring to press the positioning balls which press the coupling so that the coupling is locked onto the connector body. The movable sleeve is driven to return the push ring to release the coupling from the positioning balls. Thus, the movable sleeve is locked by the locking structure and cannot be moved any more so that the movable sleeve will not be driven inadvertently due to an external force and can press the positioning balls to lock the coupling so as to prevent the coupling from being detached from the connector body.

Disclosed herein are embodiments of a connector system for releasably connecting together tubes, for example medical tubing, and methods of making and using such a connector system, whereby the connector system includes a female coupler having a first passageway, a male coupler having a second passageway, a catch movably coupled to the female coupler, and a catch-receiving element coupled to the male coupler. The connector system further includes a release element movably coupled to the female coupler, whereby travel of the release element along or over a female coupler outer surface of the female coupler disengages the catch from the catch-receiving element to achieve a disconnected condition of the connector system. Further disclosed herein are embodiments of a connector system for releasably connecting together tubes, whereby the connector system includes at least one valve biased by a valve-biasing member disposed external to or outside of the fluid flow path.

Disclosed herein are embodiments of a connector system for releasably connecting together tubes, for example medical tubing, and methods of making and using such a connector system, whereby the connector system includes a female coupler having a first passageway, a male coupler having a second passageway, a catch movably coupled to the female coupler, and a catch-receiving element coupled to the male coupler. The connector system further includes a release element movably coupled to the female coupler, whereby travel of the release element along or over a female coupler outer surface of the female coupler disengages the catch from the catch-receiving element to achieve a disconnected condition of the connector system. Further disclosed herein are embodiments of a connector system for releasably connecting together tubes, whereby the connector system includes at least one valve biased by a valve-biasing member disposed external to or outside of the fluid flow path.

The invention relates to a nozzle, which has a main valve arranged in a channel, a coupling device (30) for producing a connection between the nozzle and the connecting piece (15), and an actuating apparatus (17) for actuating the coupling device and the main valve. The actuating apparatus comprises a manual lever (11), which is movable between a closed position and an open position. The actuating apparatus is designed to convert a movement of the manual lever in a region between the closed position and the open position to a temporally offset actuation of the coupling device and of the main valve. A coupling joint (20) connected to the manual lever is connected via operative connections to the coupling device having the main valve. The operative connections for the coupling joint form a guide such that the coupling joint is caused to rotate about a first pivot axis (41) and/or to move in a first direction when the manual lever is activated in a first manual lever region, and that the coupling joint having the manual lever in a second manual lever region is caused to rotate about a second pivot axis (42) and/or to move in a second direction.

A pneumatic valve adapter that couples with a valve stem of a bicycle tire is provided. The valve adapter comprises a cap, a seal, a biasing member, and a sealing member. The cap includes a pin passage and a circumferential concavity on an outer diameter. The receiver is coupled to the cap and is couplable with the valve stem, the receiver having a first opening that is fluidly coupled to a central passage. The seal has a circular shape and cross-section, the seal is disposed between the cap and the end of the receiver, the seal having a second hole that fluidly couples the first opening and the pin passage. The biasing member is disposed in the central passage. The sealing member is disposed within the central passage and biased against the seal by the biasing member, the sealing member being movable between a first position and a second position.

An interchangeable nozzle is provided), in particular a quick-change nozzle for applying an application agent onto a component and for fastening to a nozzle change system. The nozzle includes a nozzle body having an alignment feature for the angularly correct, mechanical alignment of the nozzle on the change system. The present disclosure also relates to an associated change system and to an associated application system.

An adjustable connector for refrigerant pipe includes a body, a valve pin is inserted into the body, and the body includes a quick-release assembly and a driving member respectively disposed on a mounting part and an installation part thereof. When the driving member is operated to suppress the pressed end of the valve pin to move the pushing end close to the pocket, the valve spout is opened to pass the refrigerant. Besides, when the driving member is operated to not suppress the pressed end by jumping off itself quickly, the pushing end is moved away from the pocket, so that the valve spout is closed to block the refrigerant.

An adjustable connector for refrigerant pipe includes a body, a valve pin is inserted into the body, and the body includes a quick-release assembly and a driving member respectively disposed on a mounting part and an installation part thereof. When the driving member is operated to suppress the pressed end of the valve pin to move the pushing end close to the pocket, the valve spout is opened to pass the refrigerant. Besides, when the driving member is operated to not suppress the pressed end by jumping off itself quickly, the pushing end is moved away from the pocket, so that the valve spout is closed to block the refrigerant.

An emergency detachable pipe coupling configured to decouple a female coupling member and a male coupling member which are coupled together when an external force makes the male coupling member tilted at a predetermined angle relative to a female coupling member. When the male coupling member is tilted, a pressing surface of the male coupling member presses a to-be-pressed surface of a locking element restraining member of the female coupling member to displace the locking element restraining member to a release position where a locking element becomes displaceable to an unlocking position.