FLOOR DRAIN Russian patent published in 2015 - IPC E03F5/04 

FIELD: construction.

SUBSTANCE: floor drain comprises a tubular vertical body (1) equipped with a perforated separator. On the inner circular support of the body via a sealant (5) there is a plate valve of hydraulic lock (6) installed, having a handle (7) and joined with a coaxial overflow cup (8). The cup (8) is placed above the outlet nozzle (3) of the body (1). The overflow cup (8) with the plate valve (6) is connected by means of cranks (11) of a sinus link mechanism distributed along the perimeter. Free ends of links (9) are geometrically closed by an internal circular body support arranged above them and made in the form of a corrugation (4). The bottom of the cup (8) is equipped with a facility (12) of connection to a quick-detachable traction rod (13).

EFFECT: prevention of free unauthorised access to a drain nozzle of a floor drain and improved quality of drains treatment.

2 dwg