Connection between a breathing mask and a gas mask and breathing equipment

摘要

The present invention relates to the connection of a breathing mask with a gas mask and breathing equipment, preferably with a demand oxygen system. The forming a pair, occupy into one another, and then that can be sealed against one another connecting parts (1, 2) of the breathing mask, and of the demand oxygen system consist of an inner - and an outer truncated cone (3, 4), wherein the inner truncated cone (3) as an air duct (5) is continued and in the external truncated cone (4) a plurality of continuous air channels (6) are arranged. This results in a channel for the attachment of the demand oxygen system to fit accurately into a considerably larger centering portion. In a preferred embodiment, the inner truncated cone (3) in the region of the smallest diameter by a cone-shaped bore (11) is extended, wherein the inclination of the surface line of the conical bore (11) based on the base surface with the largest diameter is greater than the of the interior of the truncated cone (3) and the inserted the outside of the truncated cone (4) in this region to be extended so that a sealing ring arranged in this area (8) the connecting parts (1, 2), in the assembled state, seals with respect to one another (fig. 3).