| 摘要 |
The device (1) has a passage channel (3) formed in a mouthpiece (2). A tube (5) is fastened to the mouthpiece and arranged at an opening (6) of the channel. The tube is made from resiliently flexible material, where a free end (7) of the tube is designed in opened manner. A support body (11) is connected to the mouthpiece, and has a curved or bent cross-sectional structure. An adjustment device (12) moves relative to the support body, and arranged at a distance from the mouthpiece. The adjustment device is directly connected with the hose or connected with the hose over an intermediate unit. |
