CN201627532U - Concentric double-rotation drilling machine - Google Patents
Concentric double-rotation drilling machine Download PDFInfo
- Publication number
- CN201627532U CN201627532U CN2009202854044U CN200920285404U CN201627532U CN 201627532 U CN201627532 U CN 201627532U CN 2009202854044 U CN2009202854044 U CN 2009202854044U CN 200920285404 U CN200920285404 U CN 200920285404U CN 201627532 U CN201627532 U CN 201627532U
- Authority
- CN
- China
- Prior art keywords
- auger stem
- drilling pipe
- actuating unit
- main drilling
- armed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202854044U CN201627532U (en) | 2009-12-24 | 2009-12-24 | Concentric double-rotation drilling machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009202854044U CN201627532U (en) | 2009-12-24 | 2009-12-24 | Concentric double-rotation drilling machine |
Publications (1)
Publication Number | Publication Date |
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CN201627532U true CN201627532U (en) | 2010-11-10 |
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ID=43058925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009202854044U Expired - Fee Related CN201627532U (en) | 2009-12-24 | 2009-12-24 | Concentric double-rotation drilling machine |
Country Status (1)
Country | Link |
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CN (1) | CN201627532U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102155157A (en) * | 2011-03-01 | 2011-08-17 | 何庆林 | Spiral drilling machine for forming concrete piles of different depths and shapes |
CN106703702A (en) * | 2016-12-28 | 2017-05-24 | 武汉武船重型装备工程有限责任公司 | Side-flip alloy bit |
-
2009
- 2009-12-24 CN CN2009202854044U patent/CN201627532U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102155157A (en) * | 2011-03-01 | 2011-08-17 | 何庆林 | Spiral drilling machine for forming concrete piles of different depths and shapes |
CN102155157B (en) * | 2011-03-01 | 2013-07-31 | 何庆林 | Spiral drilling machine for forming concrete piles of different depths and shapes |
CN106703702A (en) * | 2016-12-28 | 2017-05-24 | 武汉武船重型装备工程有限责任公司 | Side-flip alloy bit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Zhongbu Mining Equipment Co., Ltd. Assignor: Zhang Shaorong Contract record no.: 2011320000370 Denomination of utility model: Concentric double-rotation drilling machine Granted publication date: 20101110 License type: Exclusive License Record date: 20110323 |
|
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Xuzhou Zhongbu Mining Equipment Co., Ltd. Assignor: Zhang Shaorong Contract record no.: 2011320000370 Date of cancellation: 20140507 |
|
LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20151224 |
|
EXPY | Termination of patent right or utility model |