http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112814608-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a467cf15b174645890bebc865b79d65d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B33-12 |
| filingDate | 2021-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66e607b6f7f6be22a284700c04054328 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61dfda5787e2c4f1a3d7556070b3fc95 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f064f25de5a1b4181b37dbd7bd4d7a7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_923d4c26e447208b32ff69b7eadbdefa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cc5b1ddff7837fc3d0be6c59ae2dcef |
| publicationDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112814608-A |
| titleOfInvention | A plugging device and plugging construction method for pressurized water boreholes |
| abstract | The invention provides a plugging device and a plugging construction method for a pressurized water borehole, comprising a pressurized base; Rod, the lower end of the force-bearing rod is connected with the rod head, the rod head is arranged in the shape of an inverted cone in the lower part and a truncated cone in the upper part. The structure type with multiple petals separated and can be stretched, the maximum diameter of the rod head is larger than the inner diameter of the sleeve, the inner wall of the lower part of the sleeve is provided with a first sealing structure, and the upper conical outer surface of the rod head is provided with a second sealing structure structure, the first sealing structure and the second sealing structure are closely attached when the lower part of the casing is opened, and the lower end of the casing is sealed; it has the advantages of convenient construction, good durability, obvious blocking effect, and multiple components can be repeatedly cycled Advantages of using. |
| priorityDate | 2021-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.