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Patent Searching and Data


Title:
BALLASTLESS TURNOUT FASTENER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/243863
Kind Code:
A1
Abstract:
A ballastless turnout fastener system, comprising: a railroad tie plate (1), being a flat plate structure, the upper surface thereof being provided with an iron base; an under-plate elastic cushion layer (2), being a flat plate structure and located below the railroad tie plate (1); an under-rail elastic cushion layer (3), located between the upper surface of the railroad tie plate (1) and a steel rail (8); a heightening tie plate (4), being a flat plate structure and located below the under-plate elastic cushion layer (2); turnout tie bolts (5), sequentially penetrating through through holes at the two ends of the railroad tie plate (1), the under-plate elastic cushion layer (2), and the heightening tie plate (4) and then being fixed to a turnout tie, and the rigidity of the under-rail elastic cushion layer (3) being greater than that of the under-plate elastic cushion layer (2); a track gauge block (6), provided between the iron base and a rail limb of the steel rail (8); and an elastic strip (7), fixed on the iron base and fastened and pressed on the track gauge block (6). The fastener system satisfies a requirement for low rigidity of a turnout zone, and can ensure safe and reliable line operation; moreover, manufacturing costs and later maintenance costs of the fastener system are reduced.

Inventors:
WANG ALI (CN)
LI WENBO (CN)
YUAN BAOJUN (CN)
ZHANG HAIHUA (CN)
CHAI WENBO (CN)
Application Number:
PCT/CN2020/112624
Publication Date:
December 09, 2021
Filing Date:
August 31, 2020
Export Citation:
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Assignee:
CHINA RAILWAY BAOJI BRIDGE GROUP CO LTD (CN)
International Classes:
E01B9/38; E01B7/00; E01B9/44; E01B9/48
Foreign References:
CN201006966Y2008-01-16
CN201047044Y2008-04-16
CN111535081A2020-08-14
CN204959485U2016-01-13
KR20090005057U2009-05-27
CN212533550U2021-02-12
Attorney, Agent or Firm:
XI'AN YAXIN ZHIJIA INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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