Dust collector capable of automatically clearing blocking dust in Hepa filter

Abstract

The invention discloses a dust collector capable of automatically clearing blocking dust in a Hepa filter. The dust collector comprises a connecting cover (1), a bracket (2) and a Hepa filter (3). A piston barrel protruding upwards is arranged on the connecting cover; the lower part of the piston barrel is provided with a valve hole; the upper wall surface of the piston barrel is provided with a short circuit air hole; a piston pushed by the spring is arranged in the piston barrel; the piston is used for blocking the valve hole downwards under the action of the spring; the piston is positioned below the short circuit air hole; the Hepa filter surrounds a bracket; the connecting cover is supported under the Hepa filter, and is fixedly connected with the bracket. The technical scheme of driving the piston to be collided with the connecting cover in case of dust blockage so as to vibrate dust off by using the pressure difference between internal and external air pressures of the Hepa filter is adopted, so that the problems and defects of trouble, low efficiency and great inconvenience in clearing blocking dust existing in the prior art are overcome, and the aim of realizing automatic, efficient and convenience clearing of blocking dust is fulfilled.

Description

technical field [0001] The invention relates to a vacuum cleaner, in particular to a vacuum cleaner which is equipped with a device for automatically removing the dust blockage of the Hypa filter and can automatically remove the dust blockage of the Hypa filter. Background technique [0002] Hypa filter HEPA is a high-efficiency air filter device used in vacuum cleaners to separate particulate dust from air, referred to as Hypa filter. After a period of time, a large amount of particulate dust will cover and block the vacuum cleaner in the prior art. The outer surface of the Hypa filter prevents air from passing through, that is, dust blockage occurs, causing the dust collection efficiency of the vacuum cleaner to drop sharply until the dust collection effect is lost. Therefore, it is necessary to remove the dust blockage of the Hypa filter from time to time to restore the dust collection of the vacuum cleaner. Function, the existing technology adopts shutdown, open the vacu...

AI Technical Summary

Problems solved by technology

[0002] Hypa filter HEPA is a high-efficiency air filter device used in vacuum cleaners to separate particulate dust from air, referred to as Hypa filters. After a period of time, a large amount of particulate dust will cover and block the vacuum cleaner in the prior art. The outer surface of the Hypa filter prevents the air from passing through, that is, dust blockage occurs, which causes the dust collection efficiency of the vacuum cleaner to drop sharply until it loses the dust collection function. Therefore, it is necessary to remove the dust blockage of the Hypa filter from time to time to restore the dus

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