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Title:
CONTRACTION CONNECTION ASSEMBLY, CONTRACTION CONNECTION STRUCTURE AND CONNECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/019916
Kind Code:
A1
Abstract:
A contraction connection assembly, a contraction connection structure and a connection method. The contraction connection structure comprises a contraction connection assembly (1), and more than one connected pieces. The contraction connection assembly comprises a connection core rod (2), a contraction sleeve (4) made up of more than two contraction pieces (3) encircling the connection core rod (2), a sleeve (5) used for driving the contraction sleeve (4) to contract, and a limiting mechanism preventing the sleeve (5) and the contraction sleeve (4) from loosening when the contraction sleeve (4) is in a fully contracted state. The connection core rod (2) comprises wedge-shaped holding portions (10), and a positioning holding portion (13). The contraction pieces (3) comprise wedge-shaped holding grooves (17), and tapered surfaces for contraction. An accommodating space for the contraction sleeve (4) is provided in the sleeve (5), and a driving tapered surface is provided on a wall of the accommodating space for the contraction sleeve (4). The structure provides a reliable connection in adverse situations such as those having a large load, heavy vibrations, a high temperature, or alternating variations between high and low temperatures.

Inventors:
YANG, Dongzuo (Yang Dongzuo, 16 Fenghuangsan Road Jiulong Town, Luogang Distric, Guangzhou Guangdong 5, 510555, CN)
Application Number:
CN2015/086416
Publication Date:
February 11, 2016
Filing Date:
August 07, 2015
Export Citation:
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Assignee:
YANG, Dongzuo (Yang Dongzuo, 16 Fenghuangsan Road Jiulong Town, Luogang Distric, Guangzhou Guangdong 5, 510555, CN)
International Classes:
F16B4/00
Domestic Patent References:
WO1987005976A11987-10-08
Foreign References:
CN102384134A2012-03-21
US3520223A1970-07-14
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