http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-211598581-U
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ce92bd4ec02b959f08866e52fd642045 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B17-00 |
filingDate | 2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de048cab546d4699e12dd4661b9f4d59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dadaa85a9a8c9144dfa78561bcc24b94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_408017aec398636bb0300184a6010899 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d001ef57668ccaa9842700134b3e64e |
publicationDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CN-211598581-U |
titleOfInvention | Novel rock core pipe capable of clearing hole, fishing sand and gravel and taking core |
abstract | The utility model discloses a novel core barrel which can not only clear holes and fish sand and gravel but also take cores, comprising a sand fishing section, a core taking section and a core barrel connecting section; an inner cavity pipe wall is arranged in the sand bailing section to form a double-layer structure; the top of the bailing section is in an arc streamline shape; the outer pipe wall of the bailing section close to the upper end is provided with a pair of sand inlets; a plurality of water drainage holes are formed in the sand bailing section close to the lower end; the upper part of the rock core pipe connecting section is provided with an inner cavity pipe wall to form a double-layer structure, and the lower part of the rock core pipe connecting section is of a single-layer structure; the middle part of the core barrel connecting section is provided with an annular sand separation plate to form a ladder-shaped structure; a sand storage chamber with an opening at the upper part is enclosed by the clearance between the double-layer structures of the bailing section, the clearance between the double-layer structures at the upper part of the rock core pipe connecting section and the sand separating plate; the lower extreme and the coring section of core pipe linkage segment are connected, and the lower extreme of coring section is equipped with the drill bit. The utility model discloses except that the utensil drills into coring function, still possess the function of fishing for sand gravel in the rock debris layer of various sand gravel and morals and manners. |
priorityDate | 2020-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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