Title:
A JOINT FOR CONNECTING THE MEMBERS OF PREFORMED PRESTRESSED CONCRETE PIPE PILE
Document Type and Number:
WIPO Patent Application WO/2003/012212
Kind Code:
A1
Abstract:
A joint for connecting the members of preformed prestressed concrete pipe pile is disclosed, which comprises two retaining end plates (3, 3') each of which fixed to the end of the upper member and the lower member of the pile (1, 2), and connecting pin (5), a thread hole (31) is formed in the retaining end plate (3) of the upper member pile (1), thread is formed on the one end of the connecting pin (5) which is fit to the thread hole (31), the other end of the connecting pin (5) is square, and is provided with engaging thooth (52) at both sides, a joint box (7) is inserted at the lower portion of the retaining end plate (3') of the lower member (2) of the pile, the counter spring (6) is provided between the two pinning plates (4) and both ends of the joint box (7), the end with the engaging tooth of the connecting pin (5) is inserted between the two pinning plates (4), the engaging thooth (52) thereof is engaging with the thooth on one side of pinning plate (4).
Inventors:
ZHONG ZHAOHONG (CN)
Application Number:
PCT/CN2002/000530
Publication Date:
February 13, 2003
Filing Date:
August 01, 2002
Export Citation:
Assignee:
ZHONG ZHAOHONG (CN)
International Classes:
E02D5/52; E02D5/58; (IPC1-7): E02D5/58
Domestic Patent References:
| WO1997038173A1 | 1997-10-16 |
Foreign References:
| JPH10195868A | 1998-07-28 | |||
| JPH02213513A | 1990-08-24 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD (Bldg. B Tsinghua Tongfang Hi-Tech Plaza, No.
1, Wangzhuang Rd, Haidian District Beijing 3, CN)
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