Rapid coupling

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 37/088 (2006.01)

Patent

CA 2541358

The invention relates to a rapid coupling and more specifically to a rapid coupling in which the locking state between the pipe nipple and the sleeve can be easily ascertained. The invention comprises a rapid coupling comprising: a sleeve having an inner stop and an insertion end; a pipe nipple having an insertion end adapted to be inserted into the sleeve's insertion end and having an outer surface formed with an engagement section; a locking element provided in the sleeve at the insertion end of the sleeve, the locking element, upon engagement with the engagement section, retaining the nipple in the sleeve to constitute a coupled state of the coupling; and a compression spring disposed between the inner stop of the sleeve and the insertion end of the nipple, wherein the position of the locking element and the engagement section and the strength of the compression spring are such that in an uncoupled state of the coupling, the compression spring pushes the nipple out of the sleeve to such an extent that the engagement section is outside the sleeve.

L'invention concerne un raccord rapide dans lequel une section d'extrémité (20) d'un mamelon (12) de tube s'engage dans un trou traversant (11) d'une douille (10). Une gorge (17), formée sur le mamelon (12), permet l'entrée en prise d'une bague d'arrêt élastique (23), présente dans la douille (10), pour verrouiller la position raccordée. Cette bague d'arrêt (23) se trouve dans une rainure annulaire (24) formée à proximité de l'extrémité d'insertion (13) de la douille (10). Si le mamelon (12) de tube n'est pas suffisamment enfoncé dans la douille (10) pour que la bague d'arrêt (23) puisse s'encliqueter dans la gorge (17), le mamelon (12) de tube est alors poussé vers l'extérieur par un ressort de pression (19) placé dans le trou traversant (11) de la douille (10), de sorte que la gorge (17) soit bien visible à l'extérieur de la douille (10). Ainsi, la rainure (17) sert non seulement à verrouiller la position correctement raccordée mais aussi à indiquer une position de raccordement incorrecte.

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