CN2528923Y - Core claming and protection device of core extractor - Google Patents
Core claming and protection device of core extractor Download PDFInfo
- Publication number
- CN2528923Y CN2528923Y CN 02224416 CN02224416U CN2528923Y CN 2528923 Y CN2528923 Y CN 2528923Y CN 02224416 CN02224416 CN 02224416 CN 02224416 U CN02224416 U CN 02224416U CN 2528923 Y CN2528923 Y CN 2528923Y
- Authority
- CN
- China
- Prior art keywords
- core
- coal
- rock
- spring lock
- heart
- 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
The utility model discloses a core clamping and protection device of core extractor and relates to a special core extraction tool in the field of geological exploration. The utility model comprises a spring lock seat and a spring lock body, the spring lock body is arranged in the spring lock seat to form a core clamping mechanism, the top of the spring lock body is provided with a pawl spring, the top of the pawl spring bends toward the centre of a circle, the bottom of the spring lock seat is provided with 3-18 pieces of core protection plates, and the pawl spring and the core protection plate form a core protection mechanism. The utility model is provided with multiple core clamping and protection mechanisms, the structure is simple and artful, the spring lock and the core protection plate can guarantee fully collection of coal (rock) core with high reliability, and collection rate of coal (rock) core, in particular to dust coal and cracked rock core is greatly improved; according to the result of in-site test, collection rate of dust coal and cracked rock core is up to more than 90 percent and is improved by more than 30 percent compared with traditional core extraction tool only with the core protection device.
Description
Technical field
The utility model relates to the special-purpose coring tool of geological prospecting aspect, particularly the requisite core component of all kinds corer---and the card heart protects center device.
Background technology
When drilling coal (rock) layer in geological prospecting, the quantity that is retained in coal (rock) heart in the basket often uses coal (rock) heart taking rate to represent.The tradition coring tool only has card concentric mechanism card coal (rock) heart that breaks, coal (rock) heart only relies on frictional force to maintain with the card concentric mechanism, in the lifting process after taking fine coal or broken rock core, because basket collision drilling rod or the caused vibration of hole wall, coal (rock) heart is very easily come off, thereby greatly reduce taking rate.
Summary of the invention
The purpose of this utility model is to design the high card heart heart protective apparatus structure of a kind of degree of reliability, to improve coal (rock) heart taking rate.
Technical solution of the present utility model is: a kind of corer card heart protects center device, comprise clip spring seat and jump ring body, the jump ring body is not closed cone, it is conical that the clip spring seat inwall is, the jump ring body is located at and is formed the card concentric mechanism in the clip spring seat, and jump ring body top is provided with pawl spring, and the pawl spring top is to center of circle bending, clip spring seat bottom is provided with 3～18 and protects core, pawl spring and protect core and form the heart protective apparatus structure.
The described core that protects is connected by bearing pin and clip spring seat are eccentric.
The described core that protects can be divided into 1～3 layer of arrangement.
The utlity model has multiple card heart heart protective apparatus structure, simple and ingenious structure, by jump ring with protect core and guarantee complete coal (rock) heart of taking, degree of reliability height, coal (rock) heart especially fine coal and broken core recovery percentage has obtained large increase, according to site test results, fine coal and broken core recovery percentage also reach more than 90%, improve more than 30% than traditional coring tool taking rate that the card center device is only arranged.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is an A-A sectional view among Fig. 1.
The specific embodiment
A kind of corer card heart protects center device, comprise clip spring seat 1 and jump ring body 2, jump ring body 2 is not closed cone, it is conical that clip spring seat 1 inwall is, jump ring body 2 is located at and is formed the card concentric mechanism in the clip spring seat 1, jump ring body 2 tops a plurality of pawl springs 3 of evenly riveting over, pawl spring 3 tops are to center of circle bending, clip spring seat 1 bottom is provided with 3～18 and protects core 4, the described core 4 that protects is by bearing pin 5 and 1 eccentric connection of clip spring seat, protecting core 4 can be around bearing pin 5 rotation under eccentric action of gravity, and the described core 4 that protects can be divided into the arrangement of 1～3 sheaf space.Pawl spring 3 and protect core 4 and form the heart protective apparatus structures.Cross the drill bit internal diameter when coal (rock) the heart channel of Hang-Shaoyin and enter and protect core 4 places, under the thrust of coal (rock) heart, protect core 4 and all forward the position of a shown in Fig. 1 to, make coal (rock) gains in depth of comprehension to enter into jump ring body 2 positions on its top smoothly.After one is crept into the round trip end, carry when boring, at first by disconnected coal (rock) heart of jump ring body 2 cards, embrace coal (rock) heart by the retraction tension force of pawl spring 3 then, protect core 4 simultaneously and under eccentric action of gravity, be in b position shown in Fig. 1, thereby make the complete ground that successfully rises to of coal (rock) heart.
Claims (3)
1, a kind of corer card heart protects center device, comprise clip spring seat (1) and jump ring body (2), jump ring body (2) is not closed cone, it is conical that clip spring seat (1) inwall is, jump ring body (2) is located at and is formed the card concentric mechanism in the clip spring seat (1), and it is characterized in that: jump ring body (2) top is provided with pawl spring (3), and pawl spring (3) top is to center of circle bending, clip spring seat (1) bottom is provided with 3～18 and protects core (4), pawl spring (3) and protect core (4) composition heart protective apparatus structure.
2, the corer card heart as claimed in claim 1 protects center device, it is characterized in that: the described core (4) that protects is connected by bearing pin (5) and clip spring seat (1) are eccentric.
3, the corer card heart as claimed in claim 1 protects center device, it is characterized in that: the described core (4) that protects can be divided into 1～3 layer of arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224416 CN2528923Y (en) | 2002-01-09 | 2002-01-09 | Core claming and protection device of core extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224416 CN2528923Y (en) | 2002-01-09 | 2002-01-09 | Core claming and protection device of core extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528923Y true CN2528923Y (en) | 2003-01-01 |
Family
ID=33701835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224416 Expired - Fee Related CN2528923Y (en) | 2002-01-09 | 2002-01-09 | Core claming and protection device of core extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528923Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864951A (en) * | 2010-04-29 | 2010-10-20 | 中国石油化工集团公司 | Safe coring bullet pulling device |
| CN102242631A (en) * | 2011-07-05 | 2011-11-16 | 王佟 | Flammable ice sampling device |
| CN104653135A (en) * | 2015-01-15 | 2015-05-27 | 中国地质科学院勘探技术研究所 | Snap spring seat and inner pipe connecting device of coring drill |
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
-
2002
- 2002-01-09 CN CN 02224416 patent/CN2528923Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864951A (en) * | 2010-04-29 | 2010-10-20 | 中国石油化工集团公司 | Safe coring bullet pulling device |
| CN101864951B (en) * | 2010-04-29 | 2012-11-21 | 中国石油化工集团公司 | Safe coring bullet pulling device |
| CN102242631A (en) * | 2011-07-05 | 2011-11-16 | 王佟 | Flammable ice sampling device |
| CN105443061A (en) * | 2014-09-28 | 2016-03-30 | 中国石油化工集团公司 | Lower end pressure enclosing mechanism of coring tool with large drift diameter |
| CN105443061B (en) * | 2014-09-28 | 2017-10-10 | 中国石油化工集团公司 | Big orifice coring tool lower end pressure seal mechanism |
| CN104653135A (en) * | 2015-01-15 | 2015-05-27 | 中国地质科学院勘探技术研究所 | Snap spring seat and inner pipe connecting device of coring drill |
| CN104653135B (en) * | 2015-01-15 | 2018-03-30 | 中国地质科学院勘探技术研究所 | A kind of core drill clip spring seat and interior pipe connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |