CN210217672U - Core breaking and coring device while drilling - Google Patents
Core breaking and coring device while drilling Download PDFInfo
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- CN210217672U CN210217672U CN201921078810.3U CN201921078810U CN210217672U CN 210217672 U CN210217672 U CN 210217672U CN 201921078810 U CN201921078810 U CN 201921078810U CN 210217672 U CN210217672 U CN 210217672U
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Abstract
The utility model relates to a geology is exploreed drilling and is got core technical field, concretely relates to along with boring disconnected core coring device. The device comprises an internal drill rod and an external sliding pipe which are concentrically arranged and are connected in a vertical sliding manner; the lower part of the core taking pipe with the built-in drill rod is uniformly provided with a plurality of rotary core breaking structures, each rotary core breaking structure comprises a groove, a fixed shaft, a pull rod and a cutter, the grooves are formed in the inner wall of the core taking pipe, the two ends of the fixed shaft are respectively installed in horizontal sliding grooves symmetrically formed in the two side walls of the grooves, the pull rods and the cutters are fixed on the fixed shaft and arranged in an angle mode, and one end of each pull rod penetrates through a through hole formed in the bottom wall of each groove to be rotatably connected with. The utility model discloses along with boring disconnected core coring device flexible operation, convenient can follow the boring and accomplish the broken core of deep hole to block the rock core through the cutter after disconnected core is accomplished, guarantee that the rock core does not fall back when drawing the rock core, solve the super deep hole probing and get the difficult technological problem of core.
Description
Technical Field
The utility model relates to a geology is exploreed drilling and is got core technical field, concretely relates to along with boring disconnected core coring device.
Background
With the large-scale development and utilization of the underground shallow space, the development technology research of the deep stratum is also widely regarded. Among them, geological exploration of deep strata has become one of the first problems in underground development.
Currently, drilling coring is the most direct and effective method for geological exploration of deep strata. However, the ultra-large hole depth of the deep stratum drill hole makes it difficult to completely and quickly cut off and extract the rock core during the coring process, and an effective method for solving the technical problem is still lacking at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a along with boring disconnected core coring device to solve the difficult problem of coring of the disconnected core of extra-deep hole probing.
In order to achieve the above object, an embodiment of the present invention provides a core breaking and coring device while drilling, comprising an internal drill rod and an external slide pipe which are concentrically arranged; the internal drill rod comprises a core taking pipe and a drill bit connected to the lower end of the core taking pipe, the outer diameter of the drill bit is larger than that of the core taking pipe, and the outer diameter of the external sliding pipe is the same as that of the drill bit; the external sliding pipe is connected with the core taking pipe in a vertical sliding manner; the core taking pipe comprises a core taking pipe body and a drill bit, wherein a plurality of rotary core breaking structures are uniformly arranged on the lower portion of the core taking pipe body and above the drill bit along the circumferential direction, each rotary core breaking structure comprises a groove formed in the inner wall of the core taking pipe body, a fixed shaft, a pull rod and a cutter, two ends of the fixed shaft are respectively installed in horizontal sliding grooves symmetrically formed in two side walls of the groove, one end of the pull rod and one end of the cutter are fixed on the fixed shaft, a cutter head of the cutter faces downwards, the cutter and the pull rod form a certain angle, a through hole is formed in the bottom wall of the groove.
In one embodiment, the coring tube is smoothly connected to the outer wall surface of the drill bit.
In one embodiment, the coring pipe is smoothly connected with the outer wall surface of the drill bit in the shape of an 1/4 ellipse in cross section, wherein the long axis of the ellipse is parallel to the axis of the built-in drill rod.
In one embodiment, the coring pipe is slidably connected with the external sliding pipe through a rolling guide rail structure.
In one embodiment, the axial length of the through hole decreases gradually from the outside to the inside or from the inside to the outside.
In one embodiment, the rotational core breaking structure comprises two symmetrically arranged.
In one embodiment, the grooves are right trapezoid in cross-section.
The utility model provides a along with boring disconnected core coring device flexible operation, convenient can pass through the rotatory deep hole of accomplishing of rig and bore with the deep hole disconnected core, block the core through the cutter after disconnected core is accomplished, guarantee that the core does not fall back when drawing the core, can realize the deep hole of little aperture and break the core geological survey work of getting the core, solve the super deep hole probing and get the difficult technological problem of core.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of an apparatus for coring while drilling according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a transverse cross-sectional structure of the core breaking and coring while drilling device in an embodiment of the present invention;
fig. 3 is a schematic view of a transverse cross-sectional structure of a rolling guide structure in an embodiment of the present invention;
fig. 4 is a schematic longitudinal sectional structure view of a rotary core-breaking structure according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Fig. 1-4 show an embodiment of the core breaking and coring while drilling device of the present invention. In this embodiment, the core breaking and coring device while drilling includes an internal drill rod 1 and an external slide pipe 2. The internal drill rod 1 and the external slide pipe 2 are concentrically arranged. The internal drill rod 1 comprises a coring pipe 11 and a drill bit 12 connected to the lower end of the coring pipe 11, wherein the coring pipe 11 and the drill bit 12 can be of an integral structure or a detachable structure. The outer diameter of the drill bit 12 is larger than that of the coring pipe 11, and the outer diameter of the external sliding pipe 2 is the same as that of the drill bit 12. In order to ensure the connection firmness of the coring pipe 11 and the drill bit 12, the outer wall surfaces of the coring pipe and the drill bit are preferably connected smoothly, and more preferably, the outer wall surfaces of the coring pipe and the drill bit are connected smoothly in the shape of an ellipse with the section being 1/4, and the long axis of the ellipse is parallel to the axis of the internal drill rod 1.
The external sliding tube 2 is connected with the coring tube 11 in a vertical sliding manner, as shown in fig. 1-3, a rolling guide structure 3 can be used for connection, and since the rolling guide structure is prior art, the rolling guide structure is only schematically and simply described here, and comprises a guide rail 31 fixed on the outer wall of the coring tube 11, a slide block 32 fixed on the inner wall of the external sliding tube 2, and a ball 33 embedded between the guide rail 31 and the slide block 32. In other embodiments, the external sliding tube 2 may be connected to the core tube 11 in a sliding manner, and other suitable connecting structures may be used, for example, a simple sliding groove and sliding block structure is adopted, and the sliding groove is preferably formed on the outer wall of the core tube 11 because the core tube 11 has a large thickness. Preferably, the sliding connection is provided at the upper part of the core barrel 11.
At the lower part of the core barrel 11, above the drill bit 12, there is provided a rotary core breaking structure 4, see fig. 4, the rotary core breaking structure 4 including a groove 41 formed on the inner wall of the core barrel 11, a fixing shaft 42, a pull rod 43 and a cutter 44. Two ends of the fixed shaft 42 are respectively installed in horizontal sliding grooves (not shown) symmetrically formed on two side walls of the groove 41. One end of the pull rod 43 and one end of the cutter 44 are respectively fixed on the fixed shaft 42, the cutter head of the cutter 44 faces downwards, and the cutter 44 and the pull rod 43 form a certain angle. The bottom wall of the groove 41 is provided with a through hole 45, and the other end of the pull rod 43 passes through the through hole 45 to be rotatably connected with the external sliding tube 2, and those skilled in the art should understand that the through hole 45 should have a certain axial length to meet the requirement of the pull rod 43 for swinging up and down. Preferably, the axial length of the through-hole 45 is gradually reduced from the inside to the outside or from the outside to the inside, and fig. 4 shows the case where the axial length is gradually reduced from the outside to the inside. The rotary core breaking structures 4 may be two symmetrically arranged, or more than three uniformly distributed along the circumferential direction. In order to ensure that the groove 41 provides sufficient space for the cutting blade 44, it is preferable that the cross-section of the groove 41 is a right trapezoid.
When drilling downwards, the upper end of the internal drill rod 1 is connected with a drilling machine, and the drilling machine drives the internal drill rod 1 to rotate for drilling, at the moment, due to the friction effect with the wall of a drill hole or a manual lifting mode, the external sliding pipe 2 keeps the upward sliding trend relative to the internal drill rod 1, and the cutter 44 is positioned in the groove 41 and is not contacted with a core; when the core needs to be taken, the internal drill rod 1 is lifted upwards, the external sliding pipe 2 slides downwards relative to the internal drill rod 1, the pull rod 43 is pulled downwards, the pull rod 43 drives the fixed shaft 42 to move along the horizontal sliding groove, and the fixed shaft 42 drives the cutter 44 to rotate by virtue of the lever principle, so that the cutter extends out of the groove 41 into the pipe of the core taking pipe 11. And the cutter 44 extending out of the groove 41 is contacted with the core, and cuts off and blocks the core under the rotation action of the built-in drill rod 1, so that the core breaking and coring while drilling are realized.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a device for coring while drilling, which is characterized in that:
the core breaking and coring while drilling device comprises an internal drill rod and an external sliding pipe which are concentrically arranged; the internal drill rod comprises a core taking pipe and a drill bit connected to the lower end of the core taking pipe, the outer diameter of the drill bit is larger than that of the core taking pipe, and the outer diameter of the external sliding pipe is the same as that of the drill bit; the external sliding pipe is connected with the core taking pipe in a vertical sliding manner; the core taking pipe comprises a core taking pipe body and a drill bit, wherein a plurality of rotary core breaking structures are uniformly arranged on the lower portion of the core taking pipe body and above the drill bit along the circumferential direction, each rotary core breaking structure comprises a groove formed in the inner wall of the core taking pipe body, a fixed shaft, a pull rod and a cutter, two ends of the fixed shaft are respectively installed in horizontal sliding grooves symmetrically formed in two side walls of the groove, one end of the pull rod and one end of the cutter are fixed on the fixed shaft, a cutter head of the cutter faces downwards, the cutter and the pull rod form a certain angle, a through hole is formed in the bottom wall of the groove.
2. The core breaking while drilling coring device of claim 1, wherein:
the core taking pipe is smoothly connected with the outer wall surface of the drill bit.
3. The core breaking while drilling coring device of claim 2, wherein:
the coring pipe is smoothly connected with the outer wall surface of the drill bit in the shape of an ellipse with the section of 1/4, and the long axis of the ellipse is parallel to the axis of the built-in drill rod.
4. The core breaking while drilling coring device of claim 1, wherein:
the core taking pipe is connected with the external sliding pipe in a sliding mode through a rolling guide rail structure.
5. The core breaking while drilling coring device of claim 1, wherein:
the axial length of the through hole is gradually reduced from outside to inside or from inside to outside.
6. The core breaking while drilling coring device of claim 1, wherein:
the rotary core breaking structure comprises two symmetrically arranged core breaking structures.
7. The core breaking while drilling coring device of claim 1, wherein:
the cross section of the groove is in a right trapezoid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921078810.3U CN210217672U (en) | 2019-07-11 | 2019-07-11 | Core breaking and coring device while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921078810.3U CN210217672U (en) | 2019-07-11 | 2019-07-11 | Core breaking and coring device while drilling |
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| Publication Number | Publication Date |
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| CN210217672U true CN210217672U (en) | 2020-03-31 |
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| CN201921078810.3U Active CN210217672U (en) | 2019-07-11 | 2019-07-11 | Core breaking and coring device while drilling |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677470A (en) * | 2020-06-03 | 2020-09-18 | 中国水利水电第四工程局有限公司 | Large-volume concrete large-aperture coring construction method for hydraulic and hydroelectric engineering |
| CN111911088A (en) * | 2020-08-31 | 2020-11-10 | 中国科学院空间应用工程与技术中心 | Lunar soil deep layer sampling drill rod with sample locking function |
| CN113063623A (en) * | 2021-03-24 | 2021-07-02 | 李晟 | Ground detection device is used in geological survey |
| CN113459114A (en) * | 2021-05-14 | 2021-10-01 | 安徽优特公路养护科技有限公司 | Core robot is got in road surface drilling |
| CN115184073A (en) * | 2022-09-09 | 2022-10-14 | 深圳市勘察研究院有限公司 | Rock core sampling device for geotechnical engineering |
-
2019
- 2019-07-11 CN CN201921078810.3U patent/CN210217672U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677470A (en) * | 2020-06-03 | 2020-09-18 | 中国水利水电第四工程局有限公司 | Large-volume concrete large-aperture coring construction method for hydraulic and hydroelectric engineering |
| CN111677470B (en) * | 2020-06-03 | 2022-07-01 | 中国水利水电第四工程局有限公司 | Large-volume concrete large-aperture coring construction method for hydraulic and hydroelectric engineering |
| CN111911088A (en) * | 2020-08-31 | 2020-11-10 | 中国科学院空间应用工程与技术中心 | Lunar soil deep layer sampling drill rod with sample locking function |
| CN113063623A (en) * | 2021-03-24 | 2021-07-02 | 李晟 | Ground detection device is used in geological survey |
| CN113063623B (en) * | 2021-03-24 | 2024-04-05 | 湖北地矿建设勘察有限公司 | Rock-soil detection device for geological investigation |
| CN113459114A (en) * | 2021-05-14 | 2021-10-01 | 安徽优特公路养护科技有限公司 | Core robot is got in road surface drilling |
| CN113459114B (en) * | 2021-05-14 | 2022-09-30 | 安徽凯风工程科技有限公司 | Core robot is got in road surface drilling |
| CN115184073A (en) * | 2022-09-09 | 2022-10-14 | 深圳市勘察研究院有限公司 | Rock core sampling device for geotechnical engineering |
| CN115184073B (en) * | 2022-09-09 | 2022-12-20 | 深圳市勘察研究院有限公司 | Rock core sampling device for geotechnical engineering |
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