Sprinkler

Details Sprinkler Sprinkler

A - Human Necessities

62

C

A62C 31/05 (2006.01) B05B 1/14 (2006.01) B05B 1/34 (2006.01) B05B 1/26 (2006.01) B05B 15/10 (2006.01)

Patent

CA 2189227

The invention relates to sprinkler comprising a frame (2, 8, 2', 2"), into which at least one nozzle (15, 15', 15") has been mounted whereby the frame has a fluid inlet (5, 5' 5") and a passage (13, 13' 13") for conveying extinguishing medium to at least one nozzle (15, 15', 15"), whereby the sprinkler, in a standby state, has a heat-sensitive release means (22, 22', 22"), which is in contact with a spindle (16, 16', 16") slidably arranged in a conduit (13, 13', 13") having an inlet (11) and an outlet (14) to said nozzle. To provide a new sprinkler that ensures an even and straightlined load on the release means (22) without breaking the release means due to a high fluid pressure, the sprinkler is characterized in that the conduit is composed of a channel (13, 13', 13"), the wall of which the spindle (16, 16', 16") is arranged in a slidable or almost slidable contact with, and that the spindle and the channel extend on both sides of the channel (13, 13', 13") inlet (11, 11', 11") in order to at least partially balance the fluid pressure in the inlet when the sprinkler is in the standby state.

Une crépine comprend un cadre (2, 8, 2', 2") dans lequel est monté au moins un ajutage (15, 15', 15"). Le cadre comprend une admission de liquide (5, 5', 5") et un passage (13, 13', 13") d'amenée d'un milieu d'extinction à au moins un ajutage (15, 15 15"). Dans un état d'attente, la crépine comprend des organes de déclenchement (22, 22', 22") sensibles à la chaleur en contact avec une broche (16, 16', 16") qui coulisse dans un conduit (13, 13', 13") avec une admission (11) et une décharge (14) vers ledit ajutage. Afin d'obtenir un nouveau type de crépine dans laquelle l'organe de déclenchement (22) soit sollicité de manière uniforme et linéaire sans être cassé par la haute pression du liquide, la crépine se caractérise en ce que le conduit est constitué d'un canal (13, 13', 13") sur la paroi duquel la broche (16, 16', 16") glisse en contact direct ou presque direct. La broche et le canal s'étendent des deux côtés de l'admission (11, 11', 11") du canal (13, 13', 13") afin d'équilibrer au moins en partie la pression du liquide dans l'admission lorsque la crépine est en attente.

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