Title:
MOVABLE POSITIVE-PRESSURE LAMINAR FLOW CLEANING HOOD
Document Type and Number:
WIPO Patent Application WO/2023/051212
Kind Code:
A1
Abstract:
A movable positive-pressure laminar flow cleaning hood, comprising: a frame (2); an enclosure curtain (1); and an air cavity structure (3) and a flow-equalizing gauze (6), which are arranged at the top of the frame (2). The air cavity structure (3) and the flow-equalizing gauze (6) are respectively detachably connected to the frame (2); a purification module is arranged in the air cavity structure (3); a first air outlet is provided at the bottom of the air cavity structure (3); the flow-equalizing gauze (6) is provided at the first air outlet; the frame (2) comprises a top frame and liftable upright posts (26); the top frame comprises a first cross beam (21), a second cross beam (22), a third cross beam (23) and a fourth cross beam (24); both the first cross beam (21) and the second cross beam (22) are foldable structures; both the third cross beam (23) and the fourth cross beam (24) are telescopic structures; one end of the first cross beam (21) is connected to one end of the second cross beam (22) by means of the third cross beam (23), and the other end of the first cross beam (21) is connected to the other end of the second cross beam (22) by means of the fourth cross beam (24); and the bottom of each liftable upright post (26) is provided with a moving wheel (27).
Inventors:
HE WEI (CN)
HU XIAOQING (CN)
HU XIAOQING (CN)
Application Number:
PCT/CN2022/117753
Publication Date:
April 06, 2023
Filing Date:
September 08, 2022
Export Citation:
Assignee:
HU XIAOQING (CN)
International Classes:
E04B1/343; B01D46/00; E04H1/12; E04H3/08; E04H15/44
Foreign References:
| CN113775057A | 2021-12-10 | |||
| CN215899895U | 2022-02-25 | |||
| CN215909297U | 2022-02-25 | |||
| CN215909316U | 2022-02-25 | |||
| CN215765559U | 2022-02-08 | |||
| CN215765421U | 2022-02-08 | |||
| JP2006239496A | 2006-09-14 | |||
| US20190194972A1 | 2019-06-27 | |||
| CN203421136U | 2014-02-05 | |||
| CN111886559A | 2020-11-03 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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