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Title:
INDUSTRIAL VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2021/062947
Kind Code:
A1
Abstract:
An industrial vacuum cleaner (100), comprising: a dust suction duct (70); an airflow generation device (30) for suctioning air from the dust suction duct (70) so as to generate airflow, the airflow generation device (30) comprising a motor (72) and a fan (74) driven by the motor (72); a primary separation device (80), comprising a dust barrel (34), the dust barrel (34) comprising a side wall (84) and an accommodating cavity (86) formed by the side wall (84), the accommodating cavity (86) being in communication with the dust suction duct (70); a connecting channel (88), comprising an inlet (90) and an outlet (92), the inlet (90) being in communication with the accommodating cavity (86); and a secondary separation device (82), the secondary separation device being in communication with the outlet (92) and the airflow generation device (30). The connecting channel (88) is provided between the primary separation device (80) and the secondary separation device (82) in the industrial vacuum cleaner (100), so that the industrial vacuum cleaner (100) can continuously suction dust with a high suction force, improving the working efficiency.

Inventors:
ZHANG SHISONG (CN)
ZHANG JI (CN)
WU HONGBING (CN)
ZHONG HONGFENG (CN)
Application Number:
PCT/CN2019/125145
Publication Date:
April 08, 2021
Filing Date:
December 13, 2019
Export Citation:
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Assignee:
POSITEC POWER TOOLS SUZHOU CO LTD NON SMALL ENTITY (CN)
International Classes:
A47L9/16; A47L9/00; A47L9/10
Domestic Patent References:
WO2016172928A12016-11-03
Foreign References:
CN110811414A2020-02-21
CN102204800A2011-10-05
CN102204800A2011-10-05
CN109480694A2019-03-19
CN103961025A2014-08-06
CN110169736A2019-08-27
CN201064420Y2008-05-28
CN209136450U2019-07-23
EP3047779A12016-07-27
CN201015575Y2008-02-06
EP0728435A11996-08-28
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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