CN202520262U - Core leakage preventer on lower port of coring liner of drill bit - Google Patents
Core leakage preventer on lower port of coring liner of drill bit Download PDFInfo
- Publication number
- CN202520262U CN202520262U CN2012201417460U CN201220141746U CN202520262U CN 202520262 U CN202520262 U CN 202520262U CN 2012201417460 U CN2012201417460 U CN 2012201417460U CN 201220141746 U CN201220141746 U CN 201220141746U CN 202520262 U CN202520262 U CN 202520262U
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- China
- Prior art keywords
- core
- base
- rotary disk
- coring
- blade
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- Expired - Lifetime
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Abstract
The utility model relate to a core leakage preventer on the lower port of a coring liner of a drill bit. In the core leakage preventer, a base is mounted in the lower port of the coring liner of the drill bit, and a rotary disk is rotatably matched with the lower end surface of the base through bearing balls; an upper coring opening is arranged at the joint between the base and the lower port of the coring liner of the drill bit, and the rotary disk is provided with a lower coring opening. The upper coring opening is communicated with the lower coring opening through an opening, a plurality of blades are obliquely arranged in the opening, one end of each blade is connected with a hole on the rotary disk through a rivet, the number of the holes is equal to the number of the blades, and moreover, the holes are evenly distributed on the circumference of the rotary disk. The other ends of the blades are fixedly connected with sliding pins, the sliding pins are located in a plurality of sliding sockets and can slide in the sliding sockets, and the sliding sockets are located in the base above the opening, and are evenly and circumferentially distributed in the base. The core leakage preventer is applicable to rotary core bits, can cut off a core during sediment coring, and can prevent the core from slipping off in the process of coring.
Description
Technical field
The utility model belongs to the underwater drilling technical field, relates to the rock core leak-proof device that a kind of drilling tool is got core liner at its lower end mouth.
Background technology
Rotary (all kinds of rig) and penetrated (Churn drill and gravity piston type sampler) two big classes that the deposit core bit is divided into.The penetrated corer is provided with the petal type anti-slip device in lower port usually, with deposit landing and the leakage that prevents that corer is inner.The petal type anti-slip device can not be applicable to rotary core bit, and when drilling tool rotated, petal can hinder deposit to get into corer, and the rotation friction of deposit and petal also can damage petal.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, provides a kind of drilling tool to get the rock core leak-proof device and the method for using thereof of core liner at its lower end mouth.
The rock core leak-proof device that drilling tool is got core liner at its lower end mouth comprises base, sliding pin, bearing ball, rotary disk, blade and rivet.
Base is installed in the lower port that drilling tool is got the core bushing pipe, and rotary disk is rotatably assorted through bearing ball and base lower surface; Base and drilling tool are got core liner at its lower end mouth cooperation place and are had and get the core mouth, and rotary disk has down gets the core mouth, on get the core mouth with under to get the core port radius identical, the position is relative.
Last get the core mouth and under get between the core mouth and connect by opening; The oblique multi-disc blade that is provided with in opening; One end of every blade is connected through rivet with the perforate on the rotary disk, and an end of blade can rotate around rivet, and rivet is fixed in the perforate on the rotary disk; The number of perforate is identical with the number of blade, and on the circumference of rotary disk, is evenly distributed.The blade other end is fixedly connected with sliding pin, and sliding pin is arranged in chute and can slides therein, and chute is positioned at the base of opening top, is evenly equipped with the chute that a plurality of edges circumferentially are provided with in the base.The edge that blade cuts the rock core side have corresponding on get the curve of core mouth curvature.
The utility model is applicable to rotary core bit, can when the deposit boring coring, cut off core and the landing that prevents to get core process core.
Description of drawings
Fig. 1 is the utility model sectional view;
Fig. 2 is that the utility model A-A is to cross section view;
Fig. 3 is the relative position figure of the utility model jig and core leak-proof device before work;
Fig. 4 is the rotary disk relative position figure of the utility model jig chucking core leak-proof device when work;
Among the figure: 1. base, 2. sliding pin, 3. chute, 4. the blade other end, 5. opening, 6. bearing ball, 7. rotary disk, 8. get core bushing pipe, 9. blade, 10. an end, 11. perforates, 12. rivets, 13. jigs, 14. rotatable ring of blade.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Like Fig. 1, shown in Figure 2, the rock core leak-proof device that drilling tool is got core liner at its lower end mouth comprises base 1, sliding pin 2, bearing ball 6, rotary disk 7, blade 9 and rivet 12.Base 1 is installed in the lower port that drilling tool is got core bushing pipe 8, and base 1 and drilling tool are got core bushing pipe 8 lower port cooperation places and had and get the core mouth, and rotary disk 7 has down gets the core mouth, on get the core mouth with under to get the core port radius identical, the position is relative.Last get the core mouth and under get between the core mouth by opening 5 and connect,
Described rotary disk 7 is rotatably assorted through bearing ball 6 and base 1 lower surface;
The oblique multi-disc blade 9 that is provided with in the described opening 5; One end 10 of every blade is connected through rivet 12 with the perforate 11 on the rotary disk 7; One end 10 of blade can rotate around rivet 12; Rivet 12 is fixed in the perforate 11 on the rotary disk 7, and the number of perforate 11 is identical with the number of blade 9, and on the circumference of rotary disk 7, is evenly distributed.
The described blade other end 4 is fixedly connected with sliding pin 2, and sliding pin 2 is arranged in chute 3 and can slides therein, and chute 3 is positioned at the base 1 of opening 6 tops, is evenly equipped with the chute 3 that 16 edges circumferentially are provided with in the base 1.
The edge that described blade cuts the rock core side have corresponding on get the curve of core mouth curvature.
Like Fig. 3, shown in Figure 4, the step of the method for using of the utility model device is following:
When 1) using, the core leak-proof device is screwed in the lower end of getting core bushing pipe 8, is inserted in the jig 13 of hollow boring bit upper end, under the effect of spring, jig 13 is held the rotary disk 7 of core leak-proof device;
When 2) creeping into, the rotatable ring 14 on the drill bit is rotated under its externally threaded drive, and jig 13 drives rotary disk 7 forward rotation together of getting the core liner at its lower end, makes the inner blade 9 of core leak-proof device be in compression aperture maximum position;
3) get core before; Elder generation's backward rotation drilling tool; Rotatable ring 14 on the drill bit is rotated under its externally threaded drive, jig 13 drive get core bushing pipe 8 lower ends forward disk 7 backward rotation together to, make the inner blade 9 of core leak-proof device be in compression aperture minimum position; Cut off core, and the landing that prevents to get core process core.
Claims (2)
1. drilling tool is got the rock core leak-proof device of core liner at its lower end mouth, it is characterized in that: comprise base (1), sliding pin (2), bearing ball (6), rotary disk (7), blade (9) and rivet (12); Base (1) is installed in drilling tool and gets core bushing pipe (8) lower port, and rotary disk (7) is rotatably assorted through bearing ball (6) and base (1) lower surface; Base (1) and drilling tool are got core bushing pipe (8) lower port cooperation place and are had and get the core mouth, and rotary disk (7) has down gets the core mouth, on get the core mouth with under to get the core port radius identical, the position is relative; Last get the core mouth and under get between the core mouth and connect by opening (5); The oblique multi-disc blade (9) that is provided with in opening (5); One end (10) of every blade is connected through rivet (12) with perforate (11) on the rotary disk (7), and an end (10) of blade can rotate around rivet (12), and rivet (12) is fixed in the perforate (11) on the rotary disk (7); The number of perforate (11) is identical with the number of blade (9), and on the circumference of rotary disk (7), is evenly distributed; The blade other end (4) is fixedly connected with sliding pin (2), and sliding pin (2) is arranged in chute (3) and can slides therein, and chute (3) is positioned at the base (1) of opening (6) top, is evenly equipped with the chute (3) that a plurality of edges circumferentially are provided with in the base (1).
2. get the rock core leak-proof device of core liner at its lower end mouth like claims 1 described drilling tool, it is characterized in that: the edge that described blade cuts the rock core side have corresponding on get the curve of core mouth curvature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201417460U CN202520262U (en) | 2012-04-06 | 2012-04-06 | Core leakage preventer on lower port of coring liner of drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201417460U CN202520262U (en) | 2012-04-06 | 2012-04-06 | Core leakage preventer on lower port of coring liner of drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520262U true CN202520262U (en) | 2012-11-07 |
Family
ID=47103215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201417460U Expired - Lifetime CN202520262U (en) | 2012-04-06 | 2012-04-06 | Core leakage preventer on lower port of coring liner of drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606102A (en) * | 2012-04-06 | 2012-07-25 | 杭州电子科技大学 | Core leak preventer for lower end opening of drill coring lining pipe and method for using core leak preventer |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
-
2012
- 2012-04-06 CN CN2012201417460U patent/CN202520262U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606102A (en) * | 2012-04-06 | 2012-07-25 | 杭州电子科技大学 | Core leak preventer for lower end opening of drill coring lining pipe and method for using core leak preventer |
| CN102606102B (en) * | 2012-04-06 | 2014-07-09 | 杭州电子科技大学 | Core leak preventer for lower end opening of drill coring lining pipe and method for using core leak preventer |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121107 Effective date of abandoning: 20140709 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121107 Effective date of abandoning: 20140709 |
|
| RGAV | Abandon patent right to avoid regrant |