CN203856437U - Rock core tube allowing convenient core observation and core extraction - Google Patents
Rock core tube allowing convenient core observation and core extraction Download PDFInfo
- Publication number
- CN203856437U CN203856437U CN201420255182.2U CN201420255182U CN203856437U CN 203856437 U CN203856437 U CN 203856437U CN 201420255182 U CN201420255182 U CN 201420255182U CN 203856437 U CN203856437 U CN 203856437U
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- China
- Prior art keywords
- core
- tube
- screw
- rock core
- rock
- 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 - Lifetime
Links
- 239000011435 rock Substances 0.000 title abstract description 19
- 238000000605 extraction Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A rock core tube allowing convenient core observation and core extraction comprises a tube body and a core extraction rebar; inner walls of two ends of the tube body are provided with screw threads for connecting external devices; the core extraction rebar is used for pushing a rock core out of the tube body. The rock core tube is characterized in that the wall of the tube body is provided with a plurality of tube slots in axial symmetry and removable steel channels; the removable steel channels are equal to the tube slots in quantity and size; the removable steel channels are fastened in the tube slots through screws and screw holes. After core drilling is performed, the removable steel channels are removed, and continuity of the original rock core can be directly observed; meanwhile, the rock core can be directly pushed out through the tube slots, the extracted rock core can be well protected, labor intensity is reduced, and work efficiency and economic benefit are increased; the rock cores different in size can be drilled by designing different tube diameters for geological works of different purposes, and the rock core tube is widely applicable; the rock core tube is simple in structure, low in manufacturing cost, and convenient and quick to operate.
Description
Technical field
The utility model relates to the core barrel of the on-the-spot core drilling of a kind of mine down-hole.
Background technology
The on-the-spot core drilling of mine down-hole is the important component part of mining geology preliminry basic research, by calculating the rock quality designation (RQD: adopt diamond bit and the core barrel that diameter is 75mm to creep into, get core in rock mass of institute's coring, in institute's coring, length is greater than the core segment length sum of 10cm and the ratio of this core total length), thereby evaluate the Rock Mass Integrality situation of resample area, for the on-the-spot digging safety technics in mine provides reference, provides foundation for designing supporting parameter.
Existing core barrel body is complete steel tubular structure
,body two ends inwall is provided with pipe thread and connects external equipment.The major defect of this structure is: due to rock mass pressurized under the stress of primary rock, core drilling is the process of a stress relieving, core can tightly support in core barrel tube wall after expanding, thereby the continuity that cannot observe original core cannot be calculated the rock quality designation of institute's coring; Core is also difficult to be removed, and need to repeatedly knock core barrel, with the difficult diamond bit that unloads of pipe wrench; Not only very easily damage core continuity, and complex operation, increasing labour intensity, reduced the operating efficiency of core drilling simultaneously.
Utility model content
The technical problems to be solved in the utility model is, overcomes prior art above shortcomings, provides a kind of
the core barrel of being convenient to observe core and get core.
The technical scheme that the utility model adopts is:
A core barrel of being convenient to observe core and get core, comprises that the body of core barrel, body two ends inwall are provided with pipe thread and connect external equipment, moves back core reinforcing bar for what core is released to core barrel, it is characterized in that,
?on body tube wall, have some the axially tube seats of symmetry, be separately provided with the detachable steel tank consistent with tube seat quantity and size specification, described detachable steel tank is fastened in tube seat by screw and screw.
Further, two groove ends of described tube seat are inclined-plane, are drilled with screw on inclined-plane, the two ends of described detachable steel tank be drilled with tube seat on the screw of same specification.
Further, described tube seat is even number with the quantity of detachable steel tank.
Further, described even number is 2,4,6.
Further, described screw is consistent with the length of screw, and certainly screw, by after the fastening detachable steel tank of screw, does not stretch out in tube wall.
The utility model is simple in structure, cost of manufacture is low, operating process is convenient and swift, after core drilling, dismantle detachable steel tank, can directly observe the continuity of original core, can core directly be released by tube seat simultaneously, can well protect institute's coring, reduce labour intensity, improve operating efficiency and economic benefit; Can, by the different caliber of design, to drill through the core of different size, for the geological work of different purposes, there is practicality comparatively widely simultaneously.
Brief description of the drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is 1 generalized section embodiment illustrated in fig. 1.
In figure: 1-body, the detachable steel tank of 2-, 3-moves back core reinforcing bar, 4-pipe thread, 5-tube seat, 6-groove end, 7-screw, 8-screw.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
embodiment 1:with reference to accompanying drawing;
The present embodiment comprises the body 1 of core barrel, and body 1 two ends inwall is provided with pipe thread 4 and connects external equipment, moves back core reinforcing bar 3 for what core is released to core barrel, it is characterized in that,
?on body 1 tube wall, have 4 axially tube seats 5 of symmetry, be separately provided with 4 detachable steel tanks 2 consistent with tube seat 5 size specifications, detachable steel tank 2 is fastened in tube seat 5 by screw 8 and screw 7.
Two groove ends 6 of described tube seat 5 are inclined-plane, are drilled with screw 7 on inclined-plane, the two ends of detachable steel tank 2 be drilled with tube seat 5 on the screw of same specification.
The tube seat 5 of the present embodiment is 4 with the quantity of detachable steel tank 2.
Described screw is consistent with the length of screw, guarantees that screw passes through, after the fastening detachable steel tank of screw, not stretch out in tube wall.
Operating principle: while sampling in mine down-hole rock mass, first utilize screw 8 to be fastened in tube seat 5 by screw 7 all detachable steel tanks 2, then core barrel one end pipe thread 4 connects diamond bit, other end pipe thread 4 connects the drilling rod of geological drilling rig by adapter, the power drill coring that utilizes geological drilling rig is to body 1 and hold body 1; Back-out all screws 8, dismantle at least one pair of symmetrical detachable steel tank 2, directly observe the continuity of institute's core drilling by tube seat 5, statistical length is greater than the core segment length of 10cm, for calculating the rock quality designation of this region rock mass, finally adopt and move back core reinforcing bar 3 through tube seat 5, core in body 1 is released, made other purposes to preserve.
This core barrel is simple in structure, and cost of manufacture is low, and operating process is convenient and swift, can well protect institute's coring, has reduced labour intensity, has improved operating efficiency and economic benefit; Can, by the different caliber of design, to drill through the core of different size, for the geological work of different purposes, there is practicality comparatively widely simultaneously.
embodiment 2:
The present embodiment is as different from Example 1: the caliber of core barrel is large compared with embodiment 1, and tube seat 5 is 6 with the quantity of detachable steel tank 2.
Claims (5)
1. a core barrel of being convenient to observe core and get core, comprises that the body of core barrel, body two ends inwall are provided with pipe thread and connect external equipment, moves back core reinforcing bar for what core is released to core barrel, it is characterized in that,
?on body tube wall, have some the axially tube seats of symmetry, be separately provided with the detachable steel tank consistent with tube seat quantity and size specification, described detachable steel tank is fastened in tube seat by screw and screw.
2. the core barrel of being convenient to observe core and get core according to claim 1, is characterized in that, two groove ends of described tube seat are inclined-plane, are drilled with screw on inclined-plane, the two ends of described detachable steel tank be drilled with tube seat on the screw of same specification.
3. the core barrel of being convenient to observe core and get core according to claim 1, is characterized in that, described tube seat is even number with the quantity of detachable steel tank.
4. the core barrel of being convenient to observe core and get core according to claim 3, is characterized in that, described even number is 2,4,6.
5. the core barrel of being convenient to observe core and get core according to claim 1, is characterized in that, it is characterized in that, described screw is consistent with the length of screw, guarantees that screw passes through, after the fastening detachable steel tank of screw, not stretch out in tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255182.2U CN203856437U (en) | 2014-05-19 | 2014-05-19 | Rock core tube allowing convenient core observation and core extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255182.2U CN203856437U (en) | 2014-05-19 | 2014-05-19 | Rock core tube allowing convenient core observation and core extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856437U true CN203856437U (en) | 2014-10-01 |
Family
ID=51606299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255182.2U Expired - Lifetime CN203856437U (en) | 2014-05-19 | 2014-05-19 | Rock core tube allowing convenient core observation and core extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639938A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Gypsum injection type core protection method |
-
2014
- 2014-05-19 CN CN201420255182.2U patent/CN203856437U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639938A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Gypsum injection type core protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |