| 主权项 |
1. A breathing device for divers, comprising:
a breathing tube having a longitudinal axis and exhibiting an end having an inclined opening; an obturator that rotates between an open position and a closed position of the inclined opening of the end, the obturator changing angular orientation relative to the longitudinal axis of the breathing tube during rotation; a float that activates the obturator; a first articulator that communicates the obturator with the breathing tube; and a second articulator that communicates the float with the breathing tube, wherein the first and the second articulators each exhibit a respective hinge axis to the breathing tube, extending across the breathing tube,wherein:
the hinge axis to the breathing tube of the second articulator is more greatly distanced from the end of the breathing tube relative to the hinge axis to the breathing tube of the first articulator; the hinge axis to the breathing tube of the second articulator is parallel to the hinge axis to the breathing tube of the first articulator; the first articulator comprises a first bracket exhibiting two parallel arms that project from the breathing tube, the two parallel arms extending perpendicularly to the hinge axis to the breathing tube of the first articulator and are reciprocally connected by a crosspiece; the obturator is rigidly fixed to the first bracket; the second articulator comprises a second bracket exhibiting two parallel arms that project from the breathing tube, the two parallel arms extending perpendicularly from the hinge axis to the breathing tube of the second articulator and are reciprocally connected by a crosspiece; the obturator is provided with a counterweight configured to maintain the obturator in an open position when the breathing tube is orientated with the end facing upward and to shift the obturator into a closed position when the breathing tube is orientated with the end facing downward; the float is rotatable relative to the second bracket, the float changing angular orientation relative to the longitudinal axis of the breathing tube during rotation, the float rotatable on a float hinge axis parallel to the hinge axes to the breathing tube of the first and the second articulators, the float hinge axis to the second bracket being defined by a float pin which connects intermediate points of the two parallel arms of the second bracket and extends parallel to the crosspiece of the second bracket; the float exhibits an apex wall from which a connecting organ projects, the connecting organ having a cylindrical configuration coaxially wound about the float pin for a whole length thereof, the float further exhibiting discharges that extend laterally from the apex wall from which the connecting organ projects, the float pin extending through the discharges; and a side of the second bracket facing the first bracket exhibits a raised sliding plane for the first bracket during coinciding oscillation thereof. |
