DRY-PIPE SPRINKLER UNIT Russian patent published in 2022 - IPC A62C35/62 

FIELD: fire protection.

SUBSTANCE: group of inventions relates to a dry-pipe sprinkler unit, for use with the pipeline network of a fire extinguishing system. The specified unit includes a tubular element with a nominal pipe size of 1 inch, having a first end, made with the possibility of attachment to the specified pipeline network in a fluid communication with it. A valve is located inside the tubular element near the first end, wherein the valve has a first closing element designed to move between a closed position in which the flow of fluid through the tubular element is prevented and an open position in which the flow of fluid through the tubular element is allowed. The valve contains a valve cage installed near the first end of the tubular element, and the first closing element is designed to engage with the valve cage, and the first closing element includes a platform mounted rotatably at the first end of the pipe and a locking housing mounted on the platform. The locking housing is rotatable between the first position facing the valve socket and having the possibility of engagement with it, and the second position oriented at an angle relative to the valve socket. A fire sprinkler installed at the second end of the tubular element, wherein the sprinkler defines an opening communicating with the tubular element through the fluid and containing a second closing element engaged with the hole, and a thermosensitive trigger device engaged with the second closing element and supporting the second closing element engaged until the ambient temperature exceeds a predetermined threshold value, moreover, the starting device releases the second closing element from engagement with the hole when the ambient temperature reaches or exceeds a predetermined threshold value. The sprinkler unit additionally includes a pipe located coaxially inside the tubular element, and the pipe has an outer perimeter that is smaller than the inner perimeter of the tubular element, and is designed to move longitudinally along the tubular element, a pivoting support mounted at the first end of the pipe, and the platform is mounted rotationally on a pivoting support, a thrust surface located on the pivoting support, and a protrusion extending from the platform and made to engage with the thrust surface in order to limit the turning movement of the platform. The first closing element is installed at the first end of the pipe, and the second end of the pipe is engaged with the second closing element, when the second closing element is engaged with the hole, and when the first closing element is in the open position, and the second closing element is released from engagement, the sprinkler unit reaches a throughput equal to or greater than the k coefficient of 17.

EFFECT: expansion of the range of dry pipe sprinkler units.

57 cl, 13 dwg