Multi-stage cyclone separation device

Abstract

The invention relates to a multi-stage cyclone separation device, which comprises a first-stage cyclone separator and a second-stage cyclone separator positioned at the downstream of the first-stage cyclone separator, wherein the first-stage cyclone separator comprises a first-stage cyclone separation cavity, a first-stage air inlet and a first-stage air outlet; the lower part of the first-stage cyclone separation cavity forms a first-stage dust collecting chamber; a dust compressing mechanism used for compressing dust falling into the first-stage dust collecting chamber is arranged in the first-stage cyclone separation cavity, and comprises a dust compressing plate capable of moving up and down; when the dust compressing plate moves downward, dust in the first-stage dust collecting chamber can be compressed in the direction toward the bottom part of the first-stage dust collecting chamber; and when the separation efficiency of the first-stage cyclone separator is affected due to a certain amount of dust and impurities collected in the first-stage dust collecting chamber, the impurities can be compressed by operating the dust compressing plate so as to release adequate cyclone space for the first-stage cyclone separation cavity, and the frequency of cleaning the first-stage dust collecting chamber by a user is reduced.

Description

technical field [0001] The invention relates to a cyclone separation device for household vacuum cleaning equipment. Background technique [0002] At present, in the field of household vacuum cleaning equipment, it has become very common to use cyclone separation to separate dust, especially multi-stage cyclone separation devices containing multiple cyclone separators are widely used. In the multi-stage cyclone separation device, there is usually a first-stage cyclone separator capable of primary separation of dust-laden airflow. The first-stage cyclone separator has a first-stage cyclone separation chamber inside, and the first-stage cyclone separation chamber The bottom forms the first-level dust collection chamber. When working, the dust-laden airflow containing dust is sucked into the first-stage cyclone separation chamber for rotary separation. After separation, the large particles of dust will stay in the first-stage dust collection chamber, and the airflow containing...

AI Technical Summary

Problems solved by technology

[0003] During the use of the above-mentioned multi-stage cyclone separation device, since the dust particles are rotated and separated in the first-stage cyclone separation chamber, they mainly rely on centrifugal force and gravity and fall to the bottom of the first-stage dust collection chamber. When the dust particles collected in the dust chamber reach a certain amount, it is necessary to dismantle the first-stage dust collection chamber to clean the dust collected inside, otherwise the dust will occupy the space of the separation chamber too much and the separation efficiency will be reduced, but because the dust particles are mainly The dust particles are piled together by gravity, and the internal structure of the dust particles is actually very loose.

When the user collects a certain amount of dust in the first-level dust collection room, it needs to be cleaned, because the dust particles with a loose structure occupy a relatively large space, so the frequency of cleaning is also high, which greatly increases the workload. up

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