Handheld dust collector with spiral two-level tornado dust-air separation structure

Abstract

The invention discloses a handheld dust collector, which is characterized in that a body of the dust collector is internally provided with the spiral two-level tornado dust-air separation structure and a one-level dust cylinder, wherein the spiral two-level tornado dust-air separation structure comprises a first-level cyclone cylinder, a second-level cyclone cylinder, a spiral gas-air separation device arranged at the upper end of the second-level cyclone cylinder and a cyclone cover. The first-level cyclone cylinder and the cyclone cover carry out first-level gas-air separation on primary dust-air getting into the spiral two-level tornado dust-air separation structure, and separated two-level dust-air gets into the second-level cyclone cylinder to receive second-level dust-air separation. The dust collector disclosed by the invention is small in number of components, simple in assembling procedure and high in comprehensive performance of the complete machine. Meanwhile, the spiral two-level tornado dust-air separation structure is small in size, can effectively reduce the space of the machine body, and realizes the maximum dust storage volume.

Description

technical field [0001] The invention belongs to the technical field of vacuum cleaner production, and in particular relates to a hand-held vacuum cleaner with a spiral-type secondary tornado dust-gas separation structure. Background technique [0002] As a daily necessities, vacuum cleaners are widely used in indoor and outdoor cleaning. The vacuum cleaner is a cleaning appliance that uses the motor to drive the blades to rotate at high speed, and generates air negative pressure in the sealed housing, thereby sucking the dust into the dust collection device, and discharging the filtered air out of the fan at a very high speed. The vacuum cleaner is based on its function The classification includes dry vacuum cleaners and wet and dry vacuum cleaners. Dry vacuum cleaners generally include dust bag type and fuselage type. Vacuum cleaners are classified according to shape and can be divided into horizontal, vertical, and handheld vacuum cleaners. Surfaces, sofas, windowsills, d...

AI Technical Summary

Problems solved by technology

[0003] The dust-gas separation mode of the dust collection part of the existing hand-held vacuum cleaner mostly adopts the first-stage centrifugal separation mode or the dust bag filter mode. The filtration efficiency of these two separation modes is low and easy to block

[0004] The existing two-level separation fuselage generally includes a two-level dust-air separation structure. The first-level structure is used to filter large-scale dirt in the air, and the second-level structure is used to separate and collect small dust particles and other sundries. Traditional The second-stage dust and gas separation structure of the general-purpose fuselage filter cover is matched with the cyclone body provided with several cyclone ports to form a second-stage cyclone. This structure requires more parts, and the molds and assembly processes involved are also relatively Many and complex, the sealing of each link is difficult to control, prone to air leakage and dust leakage, which affects the overall performance of the whole machine

[0005] Chinese patent document CN200520102558.7 discloses a one-piece vacuum cleaner body with double separation. The structure of the body is arranged in the axial direction, and the dust removal device is arranged in the axial direction of the inner and outer tubes to achieve the purpose of separating dust and gas. , such a design, the number of parts is large, the secondary dust tank is placed in the first-level dust tank, occupying the space of the first-level dust tank, and excessively occupying the dust collection volume of the fuselage, the ash storage space is limited, and the dust suction The effect is greatly affected, and the secondary air return area is small, resulting in low air volume of the whole machine

At the same time, this type of two-stage dust-gas separation type fuselage structure requires a relatively high and large fuselage volume, and its shape is not suitable for portable handheld vacuum cleaners, and the scope of use is limited.

In addition, due to the flexibility of the handheld vacuum cleaner, the position can be changed at any time during work, and the dust in the existing fuselage structure is easy to flow back

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