发明名称 |
УСТРОЙСТВО ДЛЯ БЕСТРАНШЕЙНОЙ ЗАМЕНЫ ПОДЗЕМНЫХ ТРУБОПРОВОДОВ |
摘要 |
FIELD: construction engineering. ^ SUBSTANCE: invention can be used for trenchless replacement of underground pipelines of different application. Proposed device has pipe breaker with knife, pulling member, detachable well expander to force fragments of broken pipe into surrounding soil and pull new pipe into well. Detachable guide is installed additionally before pipe breaker being connected with breaker and made in form of elastic lobes with ends curved inwards. Pipe breaker is provided with radial slot in which detachable knife is installed. Expander is made in form of truncated cone whose smaller base in contact with base of pipe breaker is installed coaxially with pipe breaker being equal in diameter to pipe breaker. Larger base of conical expander is displaced radially to side of knife through value of eccentricity equal to half difference of diameters of expander bases. ^ EFFECT: improved operation reliability of device. ^ 6 dwg |
申请公布号 |
RU2003126946(A) |
申请公布日期 |
2005.02.27 |
申请号 |
RU20030126946 |
申请日期 |
2003.09.03 |
申请人 |
Красно рский государственный технический университет (КГТУ) (RU) |
发明人 |
Емелин В чеслав Иванович (RU);Авдеев Роман Михайлович (RU);Шайхадинов Александр Анатольевич (RU) |
分类号 |
F16L1/028 |
主分类号 |
F16L1/028 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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