| 摘要 |
FIELD: stationary protected structures for delivery of fire. ^ SUBSTANCE: the fortification has an underground part with a movable protective cover and a mechanism for lifting and lowering the fire mount. The underground part of the fortification is made in the form of a container with vertical (inside) and horizontal (outside in its upper part) guides. The movable protective cover can be shifted on the horizontal guides of the container, it is provided with bearing rollers and a shift mechanism kinematically linked with the fire mount lifting and lowering mechanism. The fire mount lifting and lowering mechanism is made in the form of two four-link members hinge-joined to the container bottom, whose upper links serve as a single lifting frame used for right attachment of the fire mount, provided with rollers installed in the vertical guides of the container. The vertical links of the four-link members are made folding in the middle in the direction to each other, their folding hinges are linked in pairs by slewing beams provided with nuts having opposite directions of the thread. The nuts are interconnected by a leak screw with a remotely controlled reversible drive of its rotation. ^ EFFECT: provided all-round fire from the fire moment at minimum overall dimensions of the fortification. ^ 3 dwg |
