The volute housing for closing a ventilator centrìfugo air distribution unit of a

摘要

"Housing in the volute to close a vent centru00ecfugo a unit of air distribution.A housing is provided for closing a volute centrifugal fan unit, the air distribution.The housing is configured for mounting on a panel type by dividing the unit air distribution within the regions of entry and exit.The panel has an opening for air flow formed in the rectangular.The housing defines a cylinder housing having generally irregular walls of the extremity with entry openings for circular and rectangular opening configured to be in a sist.The action by the air flow with the rectangular opening in the panel. The volute housing is formed from two sections.A later section includes a curved wall having a first edge at one end, which defines one side of a rectangular aperture, and a second edge at the other end of the wall.The first and second edges are substantially parallel to one another.The later section includes additionally the walls of the flat on opposite sides.Each of which has a first edge that intersects and is substantially perpendicular to the first edge of the curved wall to thereby define the sides of the rectangular opening.A second edge of the side wall intersects the second edge of the curved wall.The wall of the flat tip includes additionally a semicircular opening forming half of the opening of circular driveway.A previous section of the volute housing also includes a curved wall having a first edge at one end.It defines the fourth side of the rectangular aperture, and a second edge of the other end. The previous section includes additionally the walls of flat end on opposite sides of the curved wall.Each of the walls of the edge has a first edge at right angles forming an intersection with the first edge of the curved wall.And a second edge that forms an intersection with and is substantially perpendicular to the second edge of the curved wall.Each end wall includes a semicircular opening forming half of the opening of circular driveway.The second edge of the curved wall of the rear section is provided with a first element articulated.The second edge of the curved wall of the previous section is provided with a second element of articulation.The first and second articulated elements are configured to pick up each other for interconnecting the second edges of the anterior and posterior sections and allow movement of the said articulatedThe sections with respect to each other. The side walls of the rear section is formed in the same blocking conformations in a location underlying the first edge and above the semicircular opening.The side walls of the previous section are formed in the same shape locking in the first edge.Which are adapted to engage positively the conformations of blocking later section when the sections are articulated in the direction from one another around the articulated coupling.