Title:
BRIDGE EXPANSION AND CONTRACTION DEVICE AND INSTALLATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/055645
Kind Code:
A1
Abstract:
A bridge expansion and contraction device. A joint-crossing plate is installed at a first installation slot; a fixing plate is installed at a second installation slot; a height adjusting assembly, a lower support assembly, a rotating shaft assembly, and an upper pressure seat assembly are arranged in the first installation slot; the height adjusting assembly is fixed in the first installation slot; the lower support assembly is fixed to the height adjusting assembly; the rotating shaft assembly is supported on the lower support assembly and arranged in a transverse bridge direction; the upper pressure seat assembly is arranged above the lower support assembly and presses the rotating shaft assembly; and the upper pressure seat assembly is fixed to the height adjusting assembly. According to the expansion and contraction device, bolt-free installation is achieved, no bolt hole is formed on the surface of the plate, so that vehicle passing noise is reduced, and the problem of looseness of bolts and nuts is eliminated. During installation, according to the depth of the slot, the flatness of the expansion and contraction device and the bridge pavement is adjusted by adjusting the height of the height adjusting assembly, so that quick installation is achieved. Also disclosed is an installation method for the bridge expansion and contraction device.
Inventors:
XU SU (CN)
XU BIN (CN)
YOU QI (CN)
LIU ZHENGWU (CN)
HONG XUELIANG (CN)
XU BIN (CN)
YOU QI (CN)
LIU ZHENGWU (CN)
HONG XUELIANG (CN)
Application Number:
PCT/CN2023/099132
Publication Date:
March 21, 2024
Filing Date:
June 08, 2023
Export Citation:
Assignee:
NINGBO ROABY TECH INDUSTRIAL GROUP CO LTD (CN)
International Classes:
E01D21/00; E01D19/06; E01D19/12
Foreign References:
| CN111794092A | 2020-10-20 | |||
| CN105625171A | 2016-06-01 | |||
| CN115369755A | 2022-11-22 | |||
| CN218479038U | 2023-02-14 | |||
| CN216275204U | 2022-04-12 | |||
| KR20130139509A | 2013-12-23 |
Attorney, Agent or Firm:
NINGBO CHANNEL PATENT ATTORNEYS OFFICE (CN)
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