Door closer having a magnetic distribution valve

摘要

A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and solenoid control valve, in particular a 3/2-solenoid control valve. A closure damping compartment is formed between the door closer housing and the piston assembly on a side of the piston assembly facing away from the piston rod, and wherein the solenoid control valve controls at least the pressures in the closure damping compartment and in the lock compartment.

主权项

1. A door closer, including at least one of a locking function and a free-swing function, comprising:
a door closer housing; an output shaft configured to connect to a door; a piston assembly connected to the output shaft and guided in the door closer housing; a closer spring; a piston rod that connects the piston assembly to the closer spring; a hydraulic lock compartment configured to lock the closer spring, and a solenoid valve configured as a 3/2-solenoid control valve; a closure damping compartment arranged between the door closer housing and the piston assembly on a side of the piston assembly facing away from the piston rod; a tank compartment; a pressure line arranged from the hydraulic lock compartment and the 3/2-solenoid control valve; an operating line arranged from the closure damping compartment to the 3/2-solenoid control valve; a tank line arranged from the a tank compartment to the 3/2-solenoid control valve; and a fluid-tight separating wall arranged in the door closer housing between the piston assembly and the closer spring, wherein the piston rod passes through the separating wall in a fluid-tight manner,
wherein the solenoid valve controls at least the pressures in the closure damping compartment and in the lock compartment.