EP 2767714 B1 20170322 - GLASS PLATE FOR CONCRETE CONVEYING PUMP
Title (en)
GLASS PLATE FOR CONCRETE CONVEYING PUMP
Title (de)
GLASPLATTE FÜR EINE BETONFÖRDERPUMPE
Title (fr)
PLAQUE DE VERRE POUR POMPE DE TRANSPORT DU BÉTON
Publication
Application
Priority
- CN 201110254690 A 20110831
- CN 2012080041 W 20120813
Abstract (en)
[origin: EP2767714A1] Disclosed in the present invention is a glass plate for a concrete conveying pump which comprises a steel base(2) with two feeding through holes(1), the end face of the steel base(2) is embedded and welded with a wear-resistant material slide joint surface(3); shear rings(4) are assembled in the two feeding through holes(1) of the steel base(2), and are provided with openings; grooves(5) are formed on inner circular faces of the feeding through holes(1); and outer circular faces of the shear rings(4) are provided with flanges(6) matched with the grooves(5). By the structure, a flange ring at one end of each shear ring(4) and countersunk holes for accommodating the shear rings(4) on the steel base(2) are eliminated, and the interference of sealing grooves on the end face of the steel base(2) and the countersunk holes for accommodating the shear rings on the steel base(2) is avoided. Along the axis direction, a central parting plane of a shear ring(4) is taken as a symmetrical plane, the grooves(5) and the flanges(6) are symmetrical about the symmetrical plane, thus allowing the shear ring(4) to be utilized twice by the positive and negative surfaces.
IPC 8 full level
F04B 15/02 (2006.01); F04B 53/00 (2006.01)
CPC (source: EP KR US)
F04B 15/02 (2013.01 - EP US); F04B 53/00 (2013.01 - KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2767714 A1 20140820; EP 2767714 A4 20151111; EP 2767714 B1 20170322; AU 2012304054 A1 20140306; AU 2012304054 B2 20161013; CA 2845738 A1 20130307; CA 2845738 C 20170314; CN 102297126 A 20111228; CN 102297126 B 20140326; KR 101589036 B1 20160127; KR 20140076561 A 20140620; RU 2014111084 A 20151010; RU 2565124 C1 20151020; US 2014232102 A1 20140821; WO 2013029465 A1 20130307
DOCDB simple family (application)
EP 12827681 A 20120813; AU 2012304054 A 20120813; CA 2845738 A 20120813; CN 201110254690 A 20110831; CN 2012080041 W 20120813; KR 20147008526 A 20120813; RU 2014111084 A 20120813; US 201214241641 A 20120813