A kind of automatic switch mechanism
Technical field
The present invention relates to chemical field, specifically provide a kind of automatic switch mechanism.
Background technology
Existing chemical plant is needing material to be placed in air-tight state usually, at present conventional chemical plant is all adopt the switch of artificial or manual mode control convenience and closed, thus complete charging and discharging, but for the chemical plant being not suitable for manual operation, above-mentioned mode just cannot be applied in relevant device, brings inconvenience to actual production.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of automatic switch mechanism, the equipment that achieves automatic switch in rotation process.
The present invention is main by the following technical solutions: a kind of automatic switch mechanism, the pipe link I that this mechanism comprises rotating cylinder and close mechanism, is connected with close mechanism, the pipe link II be connected with pipe link I; Pipe link I and pipe link II junction are provided with drive link I, and pipe link II end is provided with drive link II; Drive link I is provided with that can be provided with along the weighting distribution wheel I of race I vertical sliding motion, drive link II can along the weighting distribution wheel II of race II vertical sliding motion; The inhibiting device I and inhibiting device II that match with weighting distribution wheel I and weighting distribution wheel II is provided with in rotating cylinder.
Described inhibiting device I and inhibiting device II is formed by the positioning plate of one group of vertically disposed positioning plate and a horizontally set, thus ensures that corresponding weighting distribution wheel moves in specific space.
The positive camber shape of close mechanism and rotating cylinder positive camber shape are coincide.
The length of race I and race II is all greater than the vertical dimension of corresponding inhibiting device.
At first, close mechanism on rotating cylinder is in closure state, after rotation starts, weighting distribution wheel II declines downwards due to Action of Gravity Field, and now pipe link II right-hand member declines along with weighting distribution wheel II, and left end is upward movement then, then drive link I is along race upward movement, pipe link I right-hand member rises, and left end declines, thus close mechanism is opened.
Rotating cylinder is rotated further, and when after drum rotation 180 degree, weighting distribution wheel I declines due to Action of Gravity Field, thus makes pipe link I left end decline right-hand member increase, and close mechanism is opened, and now drive link II rises along race.
The positive camber shape of close mechanism and rotating cylinder positive camber shape are coincide, thus when ensureing that close mechanism closes and rotating cylinder completely closed.
The length of race I and race II is all greater than the vertical dimension of corresponding inhibiting device, ensures that drive link I and drive link II has enough strokes to realize the switch of close mechanism.
In sum, the present invention adopts simple structure to achieve the automatic switch of cylindrical shell close mechanism under rotation situation, does not need manual operation, brings convenience to actual production.
Accompanying drawing explanation
Fig. 1 is the initial closure state structural representation of the present invention;
Fig. 2 is the initial open mode structural representation of the present invention;
Fig. 3 is the final closure state structural representation of the present invention;
Fig. 4 is the final open mode structural representation of the present invention;
In figure: 1, rotating cylinder, 2, close mechanism, 3, pipe link I, 4, pipe link II, 5, drive link I, 6, drive link II, 7, weighting distribution wheel I, 8, weighting distribution wheel II, 9, race II, 10, inhibiting device I, 11, inhibiting device II, 12, race I.
Detailed description of the invention
A kind of automatic switch mechanism, the pipe link I3 that this mechanism comprises rotating cylinder 1 and close mechanism 2, is connected with close mechanism 2, the pipe link II4 be connected with pipe link I3; Pipe link I3 and pipe link II4 junction are provided with drive link I5, and pipe link II4 end is provided with drive link II6; Drive link I is provided with that can be provided with along the weighting distribution wheel I7 of race I12 vertical sliding motion, drive link II6 can along the weighting distribution wheel II8 of race II9 vertical sliding motion; The inhibiting device I10 and inhibiting device II11 that match with weighting distribution wheel I7 and weighting distribution wheel II8 is provided with in rotating cylinder 1.
The positive camber shape of close mechanism 2 and rotating cylinder 1 positive camber shape are coincide.
The length of race I8 and race II9 is all greater than the vertical dimension of corresponding inhibiting device.