CN203114189U - Core tube - Google Patents
Core tube Download PDFInfo
- Publication number
- CN203114189U CN203114189U CN 201320087926 CN201320087926U CN203114189U CN 203114189 U CN203114189 U CN 203114189U CN 201320087926 CN201320087926 CN 201320087926 CN 201320087926 U CN201320087926 U CN 201320087926U CN 203114189 U CN203114189 U CN 203114189U
- Authority
- CN
- China
- Prior art keywords
- core tube
- hole
- tube body
- internal thread
- central
- 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
Links
Images
Abstract
A core tube comprises a tube body with a central through hole, inner threads are respectively arranged at two ends of the tube body, and the inner threads of two ends are identical. The tube body is connected with a drill bit through the inner threads of one end, the other end of the tube body is connected with a connector through the inner threads, the core tube is connected with a next core tube through the connector, and water is supplied through the central through hole of the tube body. The core tube is matched with the drill bit to carry out drilling, coring is convenient, drilling is fast, and efficiency is high.
Description
Technical field
The utility model relates to a kind of core barrel, is mainly used in rockhole under the coal mine.
Background technology
During the down-hole geological prospecting, because rock stratum soft or hard degree difference, adopt that common drilling rod drilling efficiency is low, speed is slow, can not satisfy and produce and the requirement of exploitation, influenced the colliery ordinary production.
Summary of the invention
The purpose of this utility model provides a kind of core barrel, cooperates drill bit probing formation pore, solves the difficult problem of original boring.
The purpose of this utility model realizes as follows: this core barrel includes the body of central through hole, and the two ends of body have internal thread respectively, and the internal thread at two ends is identical screw thread.Body is connected with drill bit by the internal thread of an end, and the body other end is connected with next joint core barrel by joint, by the water flowing of body central through hole by the internal thread jointing.
The utility model cooperates the drill bit probing, and coring is convenient, creeps into fast the efficient height.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
With reference to Fig. 1, the utility model includes the body 2 of central through hole 3, and the two ends of body 2 have internal thread 1 respectively, and the internal thread 1 at two ends is identical screw thread.Body 2 is connected with drill bit by the internal thread 1 of an end, and body 2 other ends are connected with next joint core barrel by joint, by central through hole 3 water flowings of body 2 by internal thread 1 jointing.
Claims (1)
1. core barrel includes the body of central through hole, and it is characterized in that: the two ends of body (2) have internal thread (1) respectively, and the internal thread at two ends (1) is identical screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087926 CN203114189U (en) | 2013-02-27 | 2013-02-27 | Core tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087926 CN203114189U (en) | 2013-02-27 | 2013-02-27 | Core tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114189U true CN203114189U (en) | 2013-08-07 |
Family
ID=48894549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087926 Expired - Fee Related CN203114189U (en) | 2013-02-27 | 2013-02-27 | Core tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114189U (en) |
-
2013
- 2013-02-27 CN CN 201320087926 patent/CN203114189U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20210227 |