Abstract: A nozzle adapter for an inflation valve contains a connection seat, at least one control element, at least one returning element, a seal cover, and a controlling means. The connection seat includes an imaginary axis line, an inlet, an outlet, an air stop ring, a conduit, an engagement position, a coupling, and a stopping means. A respective control element has a fixing shaft, an engaging portion, and a controlled portion. The at least one returning element is arranged on the at least one control element. The seal cover is fixed outside the coupling, and an airtight space is defined in the coupling. The controlling means mounted on a center of the connection seat opposite to the inlet and in the conduit of the airtight space to move with the controlled portion.

Abstract: A nozzle adapter for a Presta valve contains: a connection seat, at least one control element, at least one returning element, a seal cover, and a controlling means. The connection seat includes an imaginary axis line, an inlet, an outlet, an air stop ring, a conduit, an engagement position, a coupling slot, and a stopping means. A respective control element has a fixing shaft, an engaging portion, and a controlled portion. The at least one returning element is arranged on the at least one control element. The seal cover is fixed outside the coupling slot, and an airtight space is defined in the coupling slot. The controlling means mounted on a center of the connection seat opposite to the inlet and in the conduit of the airtight space to move with the controlled portion.

Abstract: A joint contains: a body, at least one locking block, at least one controller, and at least one resilient element. The body has an inlet segment, an outlet segment, and an air channel. The outlet segment has a connection orifice. Each locking block has a tooth and a driving portion. The tooth is controlled to move between a first position and a second position. Between the first position and the second position is defined a reverse driving travel path obliquely extending to the inlet segment. Each locking block also has a coupling shaft. The reverse driving travel path is arcuate, and the driving portion and the coupling shaft are on opposite sides of the tooth. Each resilient element urges the tooth to move to the first position and is pressed so that the tooth moves to the second position along the reverse driving travel path.

Abstract: A joint contains: a body, at least one locking block, at least one controller, and at least one resilient element. The body has an inlet segment, an outlet segment, an air channel, wherein the outlet segment has a connection orifice. Each locking block has a tooth and a driving portion, the tooth is controlled to move between a first position and a second position, and between the first position and the second position is defined a reverse driving travel obliquely extending to the inlet segment. Said each locking block also has a coupling shaft, wherein the reverse driving travel is arcuate, and the tooth, the driving portion, and the coupling shaft are opposite to one another. Each element urges the tooth to move to the first position and is pressed so that the tooth moves to the second position along the reverse driving travel.

Abstract: A quick connector structure for a pneumatic valve contains a body, at least one locking unit, and a control set. The body includes at least one inserting hole and an air intake, wherein an airtight washer is fixed between the at least one inserting hole. The body also includes at least one through orifice. The at least one locking unit includes at least one limiting block, each of which has a retaining segment with plural locking teeth and has a defining segment, and between each limiting block and the at least one through orifice is defined a closing ring to close an air flowing gap between each limiting block and the at least one through orifice. The control set is fitted with the body and alternatively presses the defining segment to control each limiting block to move into and to position in the at least one inserting hole.