CN217403858U - Core tube orifice closing mechanism for fixed-point core drilling tool - Google Patents
Core tube orifice closing mechanism for fixed-point core drilling tool Download PDFInfo
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- CN217403858U CN217403858U CN202220839676.XU CN202220839676U CN217403858U CN 217403858 U CN217403858 U CN 217403858U CN 202220839676 U CN202220839676 U CN 202220839676U CN 217403858 U CN217403858 U CN 217403858U
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- 238000005553 drilling Methods 0.000 title claims description 15
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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Abstract
The utility model discloses a core tube orifice closing mechanism for a fixed-point core drill, which comprises a shell, wherein a cutter is arranged at the end part of the shell, a core tube is arranged in the shell, and an orifice closing structure is arranged at the end part of the core tube; the closing structure comprises a switch tube, the switch tube is spherical, the switch tube is arranged on the coring tube, the switch tube is connected with a driving gear, and the driving gear is positioned between the shell and the coring tube; and a driving pipe is arranged between the shell and the coring pipe, a toothed belt is arranged on the driving pipe, and the toothed belt is meshed with the driving gear. The utility model discloses accomplish the sample back, adopt this mechanism can be with the mouth of pipe closure of sampling tube, keep the content of sample in the sampling tube, prevent solid, liquid, the gas leakage in the sample.
Description
Technical Field
The utility model relates to a fixed point coring drilling tool especially relates to a coring pipe mouth of pipe closing mechanism for fixed point coring drilling tool.
Background
The technique of drilling directional cores is referred to as directional coring. The directional coring technology is a coring method capable of reflecting the original position of a rock core in a well. According to the oriented core, the inclination angle and the trend of the underground rock stratum can be known, and the direction and the law of the change of the permeability of the reservoir on a plane or in a three-dimensional space can be known. The use of directional coring techniques has advanced relatively rapidly in the seventies, where cores were first oriented to obtain oriented cores. The earliest methods used for core orientation in production were mechanical methods, which used tools and instruments to orient the core. Representative core orienters include European Craelius core orienters, American Odsers, Christensen core orienters, Soviet K-5 core orienters, etc., while China has YD-56 and KD-1 score orienters. At present, after a core drill in the market finishes sampling, a sample is easy to leak from a core tube, so that liquid and gas data in the sampling are inaccurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coring pipe mouth of pipe closing mechanism for fixed point coring drilling tool accomplishes the sample back, adopts this mechanism can be with the mouth of pipe closure of sampling tube, keeps the content of taking a sample in the sampling tube, prevents solid, liquid, the gas leakage in the sample.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a core tube orifice closing mechanism for a fixed-point core drill comprises a shell, wherein a cutter is installed at the end part of the shell, a core tube is arranged in the shell, and an orifice closing structure is installed at the end part of the core tube; the closing structure comprises a switch tube, the switch tube is spherical, the switch tube is arranged on the coring tube, the switch tube is connected with a driving gear, and the driving gear is positioned between the shell and the coring tube; and a driving pipe is arranged between the shell and the coring pipe, a toothed belt is arranged on the driving pipe, and the toothed belt is meshed with the driving gear.
In the core tube orifice closing mechanism for the fixed-point core drilling tool, a first sealing ring is arranged at the upstream of the switch tube, a second sealing ring is arranged at the downstream of the switch tube, and the first sealing ring and the second sealing ring are both attached to the switch tube.
In the core tube orifice closing mechanism for the fixed-point core drilling tool, the material guide tube is arranged between the core tube and the cutter, one end of the material guide tube is communicated with the core tube, the other end of the material guide tube is communicated with the cutter, the inner diameter of the material guide tube is equal to that of the switch tube, and the inner diameter of the cutter is equal to that of the material guide tube.
The core-tube orifice closing mechanism for the fixed-point core drilling tool further comprises a plug tube, the second sealing ring is located at one end of the plug tube, one end of the material guide tube is located at the other end of the plug tube, and the plug tube is matched with the material guide tube through threads.
In the core tube mouth closing mechanism for the fixed-point core drilling tool, the switch tube is provided with the thread groove, the driving gear is fixed on the switch tube through the matching of the screw and the thread groove, and the gasket is arranged between the driving gear and the switch tube.
Compared with the prior art, the utility model discloses after accomplishing the sample, adopt this mechanism can be with the mouth of pipe closure of sampling tube, keep the content of sample in the sampling tube, prevent solid, liquid, the gas leakage in the sample.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a sectional view of fig. 1.
Reference numerals: 1-a first sealing ring, 2-a switch tube, 3-a driving gear, 4-a guide tube, 5-a plug tube, 6-a shell, 7-a cutter, 8-a coring tube, 9-a gasket, 10-a screw, 11-a second sealing ring and 12-a driving tube.
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Detailed Description
Example 2: a core tube orifice closing mechanism for a fixed-point core drill comprises a shell 6, wherein a cutter 7 is installed at the end part of the shell 6, a core tube 8 is arranged in the shell 6, and an orifice closing structure is installed at the end part of the core tube 8; the closing structure comprises a switch tube 2, the switch tube 2 is spherical, the switch tube 2 is arranged on a coring tube 8, the switch tube 2 is connected with a driving gear 3, and the driving gear 3 is positioned between a shell 6 and the coring tube 8; a driving pipe 12 is arranged between the shell 6 and the coring pipe 8, and a toothed belt is arranged on the driving pipe 12 and is meshed with the driving gear 3.
The upper reaches of switch tube 2 have first sealing washer 1, the low reaches of switch tube 2 have second sealing washer 11, and first sealing washer 1 and second sealing washer 11 all laminate with switch tube 2. The core taking pipe 8 is connected with the cutter 7 through the switch pipe 2, the guide pipe 4 is arranged between the core taking pipe 8 and the cutter 7, one end of the guide pipe 4 is communicated with the core taking pipe 8, the other end of the guide pipe 4 is communicated with the cutter 7, the inner diameter of the guide pipe 4 is equal to that of the switch pipe 2, and the inner diameter of the cutter 7 is equal to that of the guide pipe 4.
Example 3: a core tube orifice closing mechanism for a fixed-point core drill comprises a shell 6, wherein a cutter 7 is installed at the end part of the shell 6, a core tube 8 is arranged in the shell 6, and an orifice closing structure is installed at the end part of the core tube 8; the closing structure comprises a switch tube 2, the switch tube 2 is spherical, the switch tube 2 is arranged on a coring tube 8, the switch tube 2 is connected with a driving gear 3, and the driving gear 3 is positioned between a shell 6 and the coring tube 8; a driving pipe 12 is arranged between the shell 6 and the coring pipe 8, and a toothed belt is arranged on the driving pipe 12 and is meshed with the driving gear 3.
The upper reaches of switch tube 2 have first sealing washer 1, the low reaches of switch tube 2 have second sealing washer 11, and first sealing washer 1 and second sealing washer 11 all laminate with switch tube 2. The core taking pipe 8 and the cutter 7 are provided with the material guide pipe 4 therebetween, one end of the material guide pipe 4 is communicated with the core taking pipe 8, the other end of the material guide pipe 4 is communicated with the cutter 7, the inner diameter of the material guide pipe 4 is equal to that of the switch pipe 2, and the inner diameter of the cutter 7 is equal to that of the material guide pipe 4.
The material guide pipe is characterized by further comprising a screw plug pipe 5, the second sealing ring 11 is located at one end of the screw plug pipe 5, one end of the material guide pipe 4 is located at the other end of the screw plug pipe 5, and the screw plug pipe 5 is matched with the material guide pipe 4 through threads. The switch tube 2 is provided with a thread groove, the driving gear 3 is fixed on the switch tube 2 through the matching of a screw 10 and the thread groove, and a gasket 9 is arranged between the driving gear 3 and the switch tube 2.
The utility model discloses a theory of operation of embodiment: the drilling tool passes through cutter 7, passage 4 and switch tube 2 entering coring pipe 8 at the in-process sample of operation, accomplishes the sample back, orders about the driving tube 12 through the front end equipment of drilling tool and removes, and the driving tube 12 of removal drives drive gear 3 through the insection area and rotates, and drive gear 3 drives switch tube 2 and rotates, and pivoted switch tube 2 will switch on state and convert the closure state into, seals the sample and exists in the coring pipe 8. The screw plug tube 5 plays a role in fixing and sealing, and connects and communicates the switch tube 8 and the guide tube 4 together.
Claims (5)
1. A core tube orifice closing mechanism for a fixed-point core drill is characterized by comprising a shell (6), wherein a cutter (7) is installed at the end part of the shell (6), a core tube (8) is arranged in the shell (6), and a tube orifice closing structure is installed at the end part of the core tube (8); the closing structure comprises a switch tube (2), the switch tube (2) is spherical, the switch tube (2) is installed on the coring tube (8), the switch tube (2) is connected with a driving gear (3), and the driving gear (3) is located between the shell (6) and the coring tube (8); a driving pipe (12) is further arranged between the shell (6) and the coring pipe (8), a toothed belt is arranged on the driving pipe (12), and the toothed belt is meshed with the driving gear (3).
2. The core barrel orifice closing mechanism for a fixed-point core drilling tool according to claim 1, wherein a first sealing ring (1) is arranged at the upstream of the switch tube (2), a second sealing ring (11) is arranged at the downstream of the switch tube (2), and the first sealing ring (1) and the second sealing ring (11) are both attached to the switch tube (2).
3. The core barrel orifice closing mechanism for the fixed-point core drilling tool is characterized in that a material guide pipe (4) is arranged between the core barrel (8) and the cutter (7), one end of the material guide pipe (4) is communicated with the core barrel (8), the other end of the material guide pipe (4) is communicated with the cutter (7), the inner diameter of the material guide pipe (4) is equal to that of the switch pipe (2), and the inner diameter of the cutter (7) is equal to that of the material guide pipe (4).
4. The core barrel orifice closing mechanism for the point core drill according to claim 3, further comprising a plug barrel (5), wherein the second sealing ring (11) is located at one end of the plug barrel (5), one end of the guide tube (4) is located at the other end of the plug barrel (5), and the plug barrel (5) and the guide tube (4) are in threaded engagement.
5. The core barrel orifice closing mechanism for the fixed-point core drilling tool according to claim 4, wherein the switch tube (2) is provided with a thread groove, the driving gear (3) is fixed on the switch tube (2) through a screw (10) and the thread groove in a matching way, and a gasket (9) is arranged between the driving gear (3) and the switch tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220839676.XU CN217403858U (en) | 2022-04-12 | 2022-04-12 | Core tube orifice closing mechanism for fixed-point core drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220839676.XU CN217403858U (en) | 2022-04-12 | 2022-04-12 | Core tube orifice closing mechanism for fixed-point core drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217403858U true CN217403858U (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220839676.XU Active CN217403858U (en) | 2022-04-12 | 2022-04-12 | Core tube orifice closing mechanism for fixed-point core drilling tool |
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| CN (1) | CN217403858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961616A (en) * | 2022-05-31 | 2022-08-30 | 重庆文理学院 | Fixed point core drill bit structure |
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2022
- 2022-04-12 CN CN202220839676.XU patent/CN217403858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961616A (en) * | 2022-05-31 | 2022-08-30 | 重庆文理学院 | Fixed point core drill bit structure |
| CN114961616B (en) * | 2022-05-31 | 2024-08-02 | 重庆文理学院 | Fixed-point core drilling tool structure |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240816 Address after: Hanpogou, Weixing Lake Street Office, Yongchuan District, Chongqing City 402160 Patentee after: Chongqing Longding Machinery Manufacturing Co.,Ltd. Country or region after: China Address before: 402168 Chongqing Yongchuan District double bamboo town Patentee before: CHONGQING University OF ARTS AND SCIENCES Country or region before: China |