| 摘要 |
FIELD: machine building. ^ SUBSTANCE: control device includes two tubes passing through it, actuator, tube compression means, bottom and housing. Housing may sway relative at least to one neutral position (N). The first tube is closed and the other tube is open in one of the chosen positions, either closed or open (S1, S2), and vice verse in the other position. Tube compression devices are installed at the bottom with possibility of being moved against action of other elastic return means when a handle is brought into action. Elastic return means are located so that when in neutral position, they retain tube compression devices in closed position relative to two tubes with back tension which is sufficient to keep those two tubes closed. In the chosen position of tubes (closed/open) - with possibility of keeping tube compression means with higher tension on one of the tubes for closing of that tube, and at least partial opening of the other tube. Hot and cold drink preparation machine has been described. ^ EFFECT: improving smoothness during transition, and stability in each of the positions occupied with the valve. ^ 15 cl, 7 dwg |
