Title:
LARGE-FLOW FLOOR DRAIN HAVING CUP-SHAPED INNER CONTAINER
Document Type and Number:
WIPO Patent Application WO/2019/114701
Kind Code:
A1
Abstract:
A large-flow floor drain having a cup-shaped inner container, comprising a floor drain cavity (1), a cup-shaped inner container (2), an inner container support (3) and a reset mechanism (8), wherein the cup-shaped inner container (2) comprises a cup body (2-1), cup legs (2-3) and a cup bottom (2-4); the bottom of the cup body is provided with a small hole (2-2); an annular channel formed by an inner surface of the floor drain cavity (1) and an outer surface of the cup body (2-1) is a drainage channel of the floor drain; the cup bottom (2-4) is used as a bottom seal of the floor drain; the inner container support (3) connects the floor drain cavity (1) and the reset mechanism (8) so as to support the cup-shaped inner container (2); the cup bottom (2-4) is linked with the reset mechanism (8); and the floor drain is opened and closed by means of opening and closing the lower end surface of the floor drain cavity (1); a water inlet of the floor drain cavity (1) is a direct path structure without a guide plate so as to expand the flow area of the water inlet of the floor drain and eliminate drainage resistance caused by 180-degree circuitous water flow brought about by a guide plate structure; alternatively, the vertical projection area (A) of the cup body (2-1) is greater than the vertical projection area (S) of the cup bottom (2-4); alternatively, the flow area at a lower end outlet of the floor drain cavity (1) is greater than that at an inlet of the annular channel. By improving the flow channel structure of the floor drain and the force conditions of the cup-shaped inner container (2), the flow channel of the floor drain is enlarged, the flow resistance of water flow flowing through the floor drain is decreased, and the purpose of increasing the amount of water drained by the floor drain is achieved.
Inventors:
CHEN WEI (CN)
CHEN HAO (CN)
CHEN HAO (CN)
Application Number:
PCT/CN2018/120328
Publication Date:
June 20, 2019
Filing Date:
December 11, 2018
Export Citation:
Assignee:
CHEN WEI (CN)
CHEN HAO (CN)
CHEN HAO (CN)
International Classes:
E03F5/04
Foreign References:
| CN107905341A | 2018-04-13 | |||
| CN207829124U | 2018-09-07 | |||
| CN201428167Y | 2010-03-24 | |||
| CN206486973U | 2017-09-12 | |||
| CN206625328U | 2017-11-10 | |||
| DE3316475A1 | 1984-11-08 | |||
| JP2008291540A | 2008-12-04 | |||
| CN201428167Y | 2010-03-24 |
Other References:
See also references of EP 3730707A4
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