CN203296696U - Drilling coring tool for ooze stratum - Google Patents
Drilling coring tool for ooze stratum Download PDFInfo
- Publication number
- CN203296696U CN203296696U CN2013202894955U CN201320289495U CN203296696U CN 203296696 U CN203296696 U CN 203296696U CN 2013202894955 U CN2013202894955 U CN 2013202894955U CN 201320289495 U CN201320289495 U CN 201320289495U CN 203296696 U CN203296696 U CN 203296696U
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- drill bit
- outer drill
- drilling
- combination
- pin
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Abstract
The utility model relates to a drilling coring tool for an ooze stratum. The drilling coring tool for the ooze stratum is characterized in that the coring tool is formed by combining an outer drill bit combination and an inner drill bit combination through a pin. The outer drill bit combination is composed of a pressing type outer drill bit, an outer drill bit barrel, a supporting pipe, pin sliding grooves and a check ring, the pressing type outer drill bit is welded with the outer drill bit barrel, the pressing type outer drill bit is in screwed connection with the supporting pipe, the pin sliding grooves are oppositely formed in the two sides of the outer drill bit barrel, and the check ring is welded at the upper end of the outer drill bit barrel. The inner drill bit combination is composed of a pressing type inner drill bit, a pin, a grabbing spring, a grabbing spring supporting pipe and a core pipe. The drilling coring tool is used and can enable the core recovery rate to reach 90%-100% when the ooze stratum is drilled. The drilling coring tool can be used for core drilling engineering of ooze strata encountered in the scientific drilling, lake and sea drilling, constructional engineering investigation drilling and geological mining investigation drilling processes, such as flow plastic, semi-flow-plastic, soft plastic and hard plastic mud layers, silt seams and loose drift sand layers, and is simple and effective.
Description
Technical field
The utility model relates to the coring tool of the drilling projects such as Science Drilling, lake and drilling at the sea, Geotechnical Investigation probing, geology and mine core drilling.
Background technology
At present, the core drilling technology for complete and ground consisting of hard rock is comparatively ripe both at home and abroad.But for the ooze stratum, comprise that stream is moulded, half-flow plastic, softly mould, the CORING TECHNOLOGY of mud layer, mud and the loose drift sand formation core drilling of hard plastic is still immature, show as: core drilling technology and the instrument of mostly continuing to use complete and ground consisting of hard rock, rock core is easily extruded, is easily come off, core recovery percentage is lower, can't meet the requirement to the test core taking rate of Science Drilling, lake and drilling at the sea, Geotechnical Investigation probing and geology and mine drilling project.
The utility model content
The utility model is easily extruded in order to solve above-mentioned existing core drilling technology rock core, is easily come off, core recovery percentage is lower, can't meet the requirement to the test core taking rate of Science Drilling, lake and drilling at the sea, Geotechnical Investigation probing and geology and mine drilling project.And provide a kind of for the ooze stratum, and comprise that stream is moulded, half-flow plastic, softly mould, the core drilling instrument of mud layer, mud and the loose drift sand formation of hard plastic.
A kind of instrument of core drilling for the ooze stratum of the present utility model, it is characterized in that, this coring tool is combined by pin by outer drill bit combination and interior drill bit combination two parts, outer drill bit combination is comprised of forced outer drill bit, outer drill bit cylindrical shell, stay tube, pin sliding tray and shelves ring, forced outer drill bit and outer drill bit cylindrical shell are welding, forced outer drill bit and stay tube are screwed connection, and the pin sliding tray is positioned at outer drill bit cylindrical shell both sides to be split, outer drill bit cylindrical shell upper end welding gear ring; The combination of interior drill bit by forced interior drill bit, pin, grab spring, grab the spring arm, basket forms, pin is welded on forced interior drill bit both sides, grabbing spring is placed on the interior step of forced interior drill bit, and spring arm location is grabbed in dependence, forced interior drill bit is connected with basket by screw thread, outer drill bit combination and the combination of interior drill bit fit together by pin and pin sliding tray, and after assembling, outer drill bit combination and the combination of interior drill bit can be along pin sliding tray slide in opposition.
The beneficial effects of the utility model
The utility model proves and can effectively improve core drilling on the ooze stratum by industrial experimentation, comprises that stream is moulded, half-flow plastic, softly moulds, the core recovery percentage in mud layer, mud and the loose drift sand formation of hard plastic.
Its advantage is: utilize cleverly stay tube to strut in creeping into and grab reed, can make the rock core on ooze stratum enter smoothly basket, avoid rock core to be extruded; Carry while boring and utilize formation resistance that outer drill bit drive stay tube is withdrawed from voluntarily, grabbing spring utilizes its elasticity to close up voluntarily, block the rock core that has entered interior drill bit and basket, can realize sealing or semiclosed to rock core owing to grabbing in the spring structure design, thereby can avoid rock core to come off.
Its theoretical core recovery percentage can reach 100%.Use the utility model can make the core recovery percentage while on the ooze stratum, creeping into reach 90%～100%, thereby guarantee the quality of ooze stratigraphical drilling engineering.
The utility model can be used as the probing of Science Drilling, lake and drilling at the sea, Geotechnical Investigation, geology and mine is reconnoitred the ooze stratum of meeting such as probing, comprise that stream is moulded, half-flow plastic, softly mould, a kind of simple and effective coring tool of mud layer, mud and the loose drift sand formation core drilling engineering of hard plastic.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a kind of package assembly schematic diagram of the instrument of the core drilling for the ooze stratum;
Fig. 2 is interior drill bit combination package assembly schematic diagram;
The outer drill bit combination of Fig. 3 package assembly schematic diagram;
Fig. 4 is the top view of the outer drill bit combination of Fig. 3 assembly drawing;
Fig. 5 grabs the spring structure schematic diagram.
Wherein: 1 forced outer drill bit, 2 screw threads, 3 stay tubes, 4 forced interior drill bits, 5 pins, 6 grades of rings, 7 grab spring, 8 outer drill bit cylindrical shells, 9 pin sliding trays, 10 grab the spring arm, 11 baskets.
The specific embodiment
Shown in accompanying drawing 1～5, a kind of instrument of core drilling for the ooze stratum of the present utility model, as shown in Figure 1, this coring tool is made up as shown in Figure 3, Figure 4 by outer drill bit, and the combination of interior drill bit, and as shown in Figure 2, two parts combine by pin 5.Outer drill bit combination is comprised of forced outer drill bit 1, outer drill bit cylindrical shell 8, stay tube 3, pin sliding tray 9 and shelves ring 6, forced outer drill bit 1 and outer drill bit cylindrical shell 8 are welding, forced outer drill bit 1 is connected with stay tube for screw thread 2 connections, pin sliding tray 9 is positioned at outer drill bit cylindrical shell 8 both sides to be split, outer drill bit cylindrical shell 8 upper end welding gear rings 6; The combination of interior drill bit by forced interior drill bit 4, pin 5, grab spring 7, grab spring arm 10, basket 11 forms, pin is welded on forced interior drill bit both sides, grabbing spring 7 is placed on the interior step of forced interior drill bit, and spring arm 10 location are grabbed in dependence, forced interior drill bit is connected connection with basket by screw thread, outer drill bit combination and the combination of interior drill bit fit together by pin 5 and pin sliding tray 9, and after assembling, outer drill bit combination and the combination of interior drill bit can be along pin sliding tray slide in opposition.
Operating principle
The utility model is arranged on drilling tool bottom, and before coring, outer drill bit is combined in upward sliding under the effect of drilling tool pressure and formation resistance, and stay tube enters forced interior drill bit and struts and grab reed; While creeping into, this utility model together pierces stratum together with basket under the drilling tool pressure-acting, and rock core enters basket 11 by the softened reed of grabbing; While coring, upwards carrying the interior drill bit combination of drilling tool drive and basket 11 moves up, and this moment outer drill bit to be combined under the formation resistance effect maintenance motionless, stay tube 3 withdraws from forced interior drill bit, grab reed and rely on elasticity to close up, the rock core that enters forced interior drill bit and basket is blocked in basket; Carry while boring, pin 5 drives outer drill bit combination by shelves ring 6 and together proposes aperture.
Technological expansion
The utility model can be used for the probing of Science Drilling, lake and drilling at the sea, Geotechnical Investigation, geology and mine and reconnoitres the drilling project such as probing and meet the ooze stratum, comprise that stream is moulded, half-flow plastic, softly mould, the core drilling work of mud layer, mud and the loose drift sand formation of hard plastic.
Claims (1)
1. core drilling instrument that is used for the ooze stratum, it is characterized in that, this coring tool is combined by pin (5) by outer drill bit combination and interior drill bit combination two parts, outer drill bit combination is by forced outer drill bit (1), outer drill bit cylindrical shell (8), stay tube (3), pin sliding tray (9) and shelves rings (6) form, forced outer drill bit (1) and outer drill bit cylindrical shell (8) are welding, forced outer drill bit (1) and stay tube (3) are screwed connection, pin sliding tray (9) is positioned at outer drill bit cylindrical shell (8) both sides and splits, outer drill bit cylindrical shell (8) upper end welding gear ring (6), the combination of interior drill bit by forced interior drill bit (4), pin (5), grab spring (7), grab spring arm (10), basket (11) forms, pin is welded on forced interior drill bit both sides, grabbing spring (7) is placed on the interior step of forced interior drill bit, and spring arm (10) location is grabbed in dependence, forced interior drill bit is connected 11 by screw thread with basket) connect, outer drill bit combination and the combination of interior drill bit fit together by pin (5) and pin sliding tray (9), after assembling, outer drill bit combination and the combination of interior drill bit can be along pin sliding tray slide in opposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202894955U CN203296696U (en) | 2013-05-24 | 2013-05-24 | Drilling coring tool for ooze stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202894955U CN203296696U (en) | 2013-05-24 | 2013-05-24 | Drilling coring tool for ooze stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203296696U true CN203296696U (en) | 2013-11-20 |
Family
ID=49572714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202894955U Expired - Lifetime CN203296696U (en) | 2013-05-24 | 2013-05-24 | Drilling coring tool for ooze stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203296696U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510901A (en) * | 2013-10-17 | 2014-01-15 | 无锡中地地质装备有限公司 | Tubular core-taking-out structure for drilling tool |
| CN113090194A (en) * | 2021-04-20 | 2021-07-09 | 中国地质科学院勘探技术研究所 | Coring bit and coring drilling tool |
| CN113155522A (en) * | 2021-04-25 | 2021-07-23 | 江苏省地质勘查技术院 | Drill rod for sample collection, comprehensive sample collection device and working method thereof |
-
2013
- 2013-05-24 CN CN2013202894955U patent/CN203296696U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510901A (en) * | 2013-10-17 | 2014-01-15 | 无锡中地地质装备有限公司 | Tubular core-taking-out structure for drilling tool |
| CN113090194A (en) * | 2021-04-20 | 2021-07-09 | 中国地质科学院勘探技术研究所 | Coring bit and coring drilling tool |
| CN113090194B (en) * | 2021-04-20 | 2022-07-19 | 中国地质科学院勘探技术研究所 | Coring bit and coring drilling tool |
| CN113155522A (en) * | 2021-04-25 | 2021-07-23 | 江苏省地质勘查技术院 | Drill rod for sample collection, comprehensive sample collection device and working method thereof |
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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 |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |