FIELD: machine engineering.
SUBSTANCE: shut-off device of passive action with input and output channels, with a separating seat, interacting with a locking element, driven by a spring drive, operating from the medium to be supplied to the over-piston cavity of hydraulic cylinder through two pressure-adjustable mechanisms with sensing elements, the output channel of one of the which is connected to the drainage, the sensing elements of the normally opened and normally closed adjustable mechanisms are connected to the internal cavity of the housing, as the input channel of normally-closed adjustable mechanism, and the output channel of the last and the input channel of normally-opened adjustable mechanisms are connected with rodless cavity of pneumo-hydraulic cylinder, the rod of which is connected through a system of levers with a spring drive, a locking control element.
EFFECT: increased protection.
3 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2631844C1 |
| VALVE | 2016 |
|
RU2634165C1 |
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|
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|
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|
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|
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| LOCKING DEVICE FOR HYDRAULIC MIXTURES | 0 |
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SU1285244A1 |
| SECTIONAL HYDRAULIC DISTRIBUTOR WITH MECHANICAL MANUAL CONTROL AND WORKING SECTION OF SECTIONAL HYDRAULIC DISTRIBUTOR WITH MECHANICAL MANUAL CONTROL | 2006 |
|
RU2320903C1 |
