CN202055767U - Drilling tool for drill hole sampling at complex stratum - Google Patents
Drilling tool for drill hole sampling at complex stratum Download PDFInfo
- Publication number
- CN202055767U CN202055767U CN2011201584990U CN201120158499U CN202055767U CN 202055767 U CN202055767 U CN 202055767U CN 2011201584990 U CN2011201584990 U CN 2011201584990U CN 201120158499 U CN201120158499 U CN 201120158499U CN 202055767 U CN202055767 U CN 202055767U
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- China
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- joint
- drilling tool
- drill hole
- return connector
- hole sampling
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Abstract
The utility model discloses a drilling tool for drill hole sampling at a complex stratum, which comprises an inner tube assembly, a double single-acting mechanism and an outer tube assembly. The double single-acting mechanism is connected with a reducing joint through a water diversion joint, the water diversion joint adopts a shape of a round cover, external threads are formed on the outer wall of the water diversion joint, internal threads are formed on the inner wall, a plurality of vertical through water flowing passages are formed inside the annular outer wall, the external threads of the water diversion joint are connected with internal threads of an inner mouthpiece of the reducing joint, the internal threads of the water diversion joint are connected with external threads formed on a bearing support of the double single-acting mechanism, and a horizontal passage communicated with the water flowing passages and a drilling rod is also formed between the top surface of the water diversion joint and the inner cavity of the reducing joint. The drilling tool disclosed by the utility model is suitable for drill hole sampling at the weak intercalations of rock mass rupture zones and shear zones. The drilling tool has a compact structure, and is suitable for drill hole sampling in narrow spaces such as adits and the like.
Description
Technical field
The utility model relates to a kind of drilling tool, specifically, is a kind of drilling tool that is used for the bad ground drill hole sampling.
Background technology
Broken formation or weak intercalated layer are often controlled the stable of structure foundation, side slope.Drill hole sampling is important prospecting means.
As shown in Figure 1, the bad ground drill hole sampling drilling tool of prior art generally is made up of inner tube assembly, two single action mechanism 2, outer pipe assembly.Inner tube assembly comprises inner pipe joint 4, interior pipe 1, clip spring seat 5, jump ring 6.Outer pipe assembly comprises reducing joint 7, outer tube 3, reamer 8, diamond bit 9.On the outer wall of reducing joint 7 and inwall, be formed with external screw thread and internal thread respectively, outer tube 3 is connected by being threaded on the external screw thread on reducing joint 7 outer walls, two single action mechanism 2 is connected on the internal thread of inwall of reducing joint 7, formed aquaporin 11 between outer tube 3 and two single action mechanisms 2 and the interior pipe 4, in reducing joint 7, be formed with and be communicated with drilling rod and cross the inclined hole 10 that aquaporin 11 communicates, pipe 1 in the lower end of two single action mechanism 2 connects by inner pipe joint 4, the bottom of interior pipe 1 is provided with jump ring 6 and clip spring seat 5, and the bottom of outer tube 3 is by reamer 8 and the diamond bit 9 of being threaded.
But, the drill hole sampling drilling tool of prior art, because two single action mechanisms 2 are directly by being threaded in the reducing joint 7, for the ease of processing, in reducing joint 7, have inclined hole 10, like this, the diameter of pipe 1 diminishes relatively in making, the total length of drilling tool is elongated, and drilling tool structure is compact inadequately, and the diameter of generally held standard outer tube 3 is 146mm, the diameter of interior pipe 2 is 127mm, what have also is provided with one way valve between reducing joint 7 and two single action mechanism 2, make the total length of drilling tool greater than 3 meters, is not suitable for the drill hole sampling of narrow spaces such as adit.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of compact conformation, interior pipe size big, be convenient to the drilling tool that is used for the bad ground drill hole sampling that rock sample takes out.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of drilling tool that is used for the bad ground drill hole sampling, comprise that inner tube assembly, two single action mechanism, outer pipe assembly form, inner tube assembly comprises inner pipe joint, interior pipe, clip spring seat, jump ring; Outer pipe assembly comprises reducing joint, outer tube, reamer, drill bit, two single action mechanism is connected with reducing joint by return connector, described return connector is a dome-shaped, on the outer wall of return connector, be formed with external screw thread, be formed with internal thread on the inwall, in the annular outer wall of reducing joint, be formed with the water flowing passage of a plurality of vertical perforations, the external screw thread of return connector is connected with the internal thread of reducing joint inner joint, the internal thread of return connector is connected with external screw thread on the support of bearing that is formed on two single action mechanisms, also is formed with the horizontal channel that is communicated with water flowing passage and drilling rod between return connector end face and reducing joint inner chamber.
Pipe is the pipe that narrows in described.
The diameter of described outer tube is 146mm, and the diameter of interior pipe is 133mm.
Described drill bit is a diamond bit.
Sampling driller of the present utility model has good single action performance, guarantees that rock sample enters behind the basket not by disturbance; Pipe is the pipe that narrows in the drilling tool, is convenient to rock sample and takes out, and reduces the disturbance to sample; Interior pipe size is big, and labial surface is long-pending little at the bottom of the diamond bit, and rate of penetration is fast; The drilling tool structure compactness, the about 2m of drilling tool total length is applicable to the drill hole sampling of narrow spaces such as adit.Use this drilling tool all to obtain original state degree extraordinary core, economic benefit and obvious social benefit at broken formation.
Description of drawings
Fig. 1 is the section of structure of the drilling tool that is used for the bad ground drill hole sampling of prior art.
Fig. 2 is the section of structure that is used for the drilling tool of bad ground drill hole sampling of the present invention.
Fig. 3 is the top plane view of the return connector of the drilling tool that is used for the bad ground drill hole sampling of the present invention.
Fig. 4 is the section of structure of the return connector of the drilling tool that is used for the bad ground drill hole sampling of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Shown in Fig. 1 ~ 4, the drilling tool that is used for the bad ground drill hole sampling of the present utility model comprises that inner tube assembly, two single action mechanism 22, outer pipe assembly form, and inner tube assembly comprises inner pipe joint 24, interior pipe 21, clip spring seat 25, jump ring 26; Outer pipe assembly comprises reducing joint 27, outer tube 23, reamer 28, drill bit 29, and two single action mechanism 22 is connected with reducing joint 27 by return connector 30, and described return connector 30 is a dome-shaped, is formed with external screw thread 31 on the outer wall of return connector 30.Be formed with internal thread 32 on the inwall, in the annular outer wall of return connector 30, be formed with the water flowing passage 33 of a plurality of vertical perforations, the external screw thread 31 of return connector 30 is connected with the internal thread of reducing joint 27 inner joints, the internal thread 32 of return connector 30 is connected with external screw thread on the support of bearing 34 that is formed on two single action mechanisms 22, also is formed with the horizontal channel 35 that is communicated with water flowing passage 33 and drilling rod between return connector 30 end faces and reducing joint 27 inner chambers.
Described drill bit 29 is selected diamond bit for use, creeps into speed with raising.In order to select universal standard part for use, described outer tube 23 typically have a diameter from 146mm, the diameter of interior pipe 21 is 133mm, adopt independent return connector 30 to connect two single action mechanisms 22 and reducing joint 27, be convenient to processing, and outer tube 23 and two single action mechanisms 22 and in form between the pipe 21 to cross aquaporin 41 narrower than the prior art.The pipe size is bigger than the interior pipe size of prior art in the utility model, make diamond bit at the bottom of labial surface long-pending little, rate of penetration is fast; In addition, the external screw thread 31 of return connector 30 is connected with the internal thread of reducing joint 27 inner joints and the internal thread 32 of return connector 30 is connected with external screw thread on the support of bearing 34 that is formed on two single action mechanisms 22, make the drilling tool structure compactness, the about 2m of drilling tool total length is applicable to the drill hole sampling of narrow spaces such as adit.
Two single action mechanism 22 is a prior art, no longer narrates at this.
Above-described embodiment only is used to illustrate technological thought of the present utility model and characteristics, its purpose is to make those skilled in the art can understand content of the present utility model and implements according to this, can not only limit claim of the present utility model with present embodiment, be equal variation or the modification that spirit that all the utility model disclose is done, still drop in the claim of the present utility model.
Claims (4)
1. a drilling tool that is used for the bad ground drill hole sampling comprises inner tube assembly, two single action mechanisms (22), outer pipe assembly composition, and inner tube assembly comprises inner pipe joint (24), interior pipe (21), clip spring seat (25), jump ring (26); Outer pipe assembly comprises reducing joint (27), outer tube (23), reamer (28), drill bit (29), it is characterized in that, two single action mechanisms (22) are connected with reducing joint (27) by return connector (30), described return connector (30) is a dome-shaped, on the outer wall of return connector (30), be formed with external screw thread (31), be formed with internal thread (32) on the inwall, in the annular outer wall of return connector (30), be formed with the water flowing passage (33) of a plurality of vertical perforations, the external screw thread (31) of return connector (30) is connected with the internal thread of reducing joint (27) inner joint, the internal thread (32) of return connector (30) is connected with external screw thread on the support of bearing (34) that is formed on two single action mechanisms (22), also is formed with the horizontal channel (35) that is communicated with water flowing passage (33) and drilling rod between return connector (30) end face and reducing joint (27) inner chamber.
2. the drilling tool that is used for the bad ground drill hole sampling according to claim 1 is characterized in that, described interior pipe (21) is the pipe that narrows.
3. the drilling tool that is used for the bad ground drill hole sampling according to claim 1 is characterized in that, the diameter of described outer tube (23) is 146mm, and the diameter of interior pipe (21) is 133mm.
4. according to claim 1, the 2 or 3 described drilling tools that are used for the bad ground drill hole sampling, it is characterized in that described drill bit (29) is a diamond bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201584990U CN202055767U (en) | 2011-05-18 | 2011-05-18 | Drilling tool for drill hole sampling at complex stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201584990U CN202055767U (en) | 2011-05-18 | 2011-05-18 | Drilling tool for drill hole sampling at complex stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055767U true CN202055767U (en) | 2011-11-30 |
Family
ID=45015743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201584990U Expired - Lifetime CN202055767U (en) | 2011-05-18 | 2011-05-18 | Drilling tool for drill hole sampling at complex stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322225A (en) * | 2011-05-18 | 2012-01-18 | 中水北方勘测设计研究有限责任公司 | Drilling tool for drilling and sampling complex stratum |
| CN107558939A (en) * | 2017-10-12 | 2018-01-09 | 中国地质大学（武汉） | Bad ground quadruple pipe fidelity core drill |
-
2011
- 2011-05-18 CN CN2011201584990U patent/CN202055767U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322225A (en) * | 2011-05-18 | 2012-01-18 | 中水北方勘测设计研究有限责任公司 | Drilling tool for drilling and sampling complex stratum |
| CN107558939A (en) * | 2017-10-12 | 2018-01-09 | 中国地质大学（武汉） | Bad ground quadruple pipe fidelity core drill |
| CN107558939B (en) * | 2017-10-12 | 2019-06-25 | 中国地质大学（武汉） | Bad ground quadruple pipe fidelity core drill |
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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: 20111130 |