INDUSTRIAL VACUUM CLEANER Russian patent published in 2012 - IPC A47L5/18 

FIELD: personal use articles.

SUBSTANCE: invention relates to cleaning equipment and can be used in devices intended to collect various contaminants in industrial premises, including fire and explosion premises. Industrial vacuum cleaner comprises a housing with a lid, the main ejector, a suction hose with a nozzle. Industrial vacuum cleaner differs from the known ones in the fact that on the lid has two auxiliary ejectors are mounted, and the output of each auxiliary ejector is connected to the respective filter located in the housing cavity, and the passive input of each auxiliary ejector communicates with the atmosphere, the passive input of the main ejector is connected to the suction hose, and at the output of the main ejector a valve is mounted in the form of an elastic element, one of the outputs of the jet trigger with separate inputs is connected to the input of the jet discrete monostable element, and through the first delay element, with the control of the input of the first distribution valve, the second output of the jet trigger with separate inputs is connected to the control of input of the second distribution valve, direct output of jet discrete monostable element through the second delay element is connected with the input of the jet trigger with separate inputs by which it switches to a state when the compressed air is supplied to the control input of the second distribution valve, inverse output of the jet discrete monostable element via the third delay element is connected to the second input of the jet trigger with separate inputs, output of the second distribution valve, corresponding to the atmospheric input, is connected with active input of the main ejector, and the second output of this valve is connected to the feeding input of the first distribution valve, each of the outputs of the first distribution valve is connected to the active input of one of the auxiliary ejectors.

EFFECT: improved operational properties of the vacuum cleaner and simplification of maintenance.

4 cl, 1 dwg