CN205100916U - A simple and easy core drilling tool that is used for broken chiltern rock stratum to drill - Google Patents
A simple and easy core drilling tool that is used for broken chiltern rock stratum to drill Download PDFInfo
- Publication number
- CN205100916U CN205100916U CN201520872815.9U CN201520872815U CN205100916U CN 205100916 U CN205100916 U CN 205100916U CN 201520872815 U CN201520872815 U CN 201520872815U CN 205100916 U CN205100916 U CN 205100916U
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- China
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- core
- chiltern
- sleeve pipe
- drilling rod
- broken
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- Expired - Fee Related
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a simple and easy core drilling tool that is used for broken chiltern rock stratum to drill, including drill bit, rock core tube and drilling rod, the drill bit is fixed to be set up in rock core tube one end, link firmly through reducing union is coaxial between the rock core tube other end and the drilling rod, the coaxial solid cover of drilling rod has one set of pipe, form the bottom lock between sleeve pipe and the drilling rod and open -top's annular space. The utility model discloses an inverse bonding sleeve pipe on the rock core tube, in tool joint, the partial core that creeps into is collected in the rock core tube, be that the peripheral chiltern core that precipitates in hole can be collected in the annular space between sleeve pipe and the drilling rod, it can all take out the chiltern core to inject the water under high pressure into through the rock core tube when the sample, can not appear deposiing in the downthehole condition, thereby avoid the bury drills, drilling accidents such as plug -hole, realize fast, creep into smoothly, , uses engineering geology on reconnoitring the building site, and the effects are obvious.
Description
Technical field
The utility model belongs to engineer geological prospecting technical field, is specifically related to a kind of core drilling tool for drilling, the simple and easy core drilling tool of particularly a kind of broken chiltern rock stratum probing.
Background technology
In the engineering geologic investigation drilling process of broken chiltern rock stratum (as complete-strong weathered granite, sandstone, gneiss etc.), part core is normal broken in sand shape, when carrying brill, sand shape core can precipitate in a large number, cause the drilling accident such as bury drills, plug-hole, and not easily get core after boring, therefore the prospecting by boring efficiency of such geology is very low, this is the Universal Problems of puzzlement in the drilling process of broken chiltern rock stratum always.
Utility model content
The technical problem that the utility model solves is: easily occur bury drills, plug-hole when drilling broken chiltern rock stratum for existing core drilling tool and get core technological deficiency not easily, a kind of simple and easy core drilling tool is provided, can realize creeping into fast, smoothly and sampling, avoid occurring bury drills, collapse the situations such as hole.
The utility model adopts following technical scheme to realize:
A kind of simple and easy core drilling tool for the probing of broken chiltern rock stratum, comprise drill bit 1, core barrel 4 and drilling rod 6, described drill bit 1 is fixedly installed on core barrel 4 one end, coaxially be connected by reducing joint 5 between described core barrel 4 other end and drilling rod 6, described drilling rod 6 is coaxially installed with a sleeve pipe 7, forms bottom lock and open-topped annular space between described sleeve pipe 7 and drilling rod 6.
Further, the bottom of described sleeve pipe 7 and the welded top of reducing joint 5 seal, open top.
Further, the diameter of described sleeve pipe 7 10-30mm less of the diameter of drill bit 1.
Further, the length of described sleeve pipe 7 is 1-3m.
In the utility model, be fixedly connected with by putting off shell 2 between described core barrel 4 and drill bit 1, described in put off shell 2 inner chamber be fixedly embedded with and put off spring 3, squeeze off the core in core barrel during for promoting drilling tool.
Core drill prodigiosin of the present utility model processes the sand shape core in chiltern core drilling process enough smoothly, and on-the-spot conventional instrument can be utilized to carry out simple process processing, can fully utilize.By inverse bonding sleeve pipe on core barrel, in drilling process, the part core crept into is collected in core barrel, the chiltern core that hole periphery precipitates can be collected in the annular space between sleeve pipe and drilling rod, and injecting water under high pressure when sampling by core all can take out chiltern core, there will not be situation about being deposited in hole, thus avoid the drilling accident such as bury drills, plug-hole, realize creeping into fast, smoothly, engineering geologic investigation building site is applied, and effect clearly.
From the above mentioned, the utility model has following beneficial effect:
1) structure is simply clear;
2) equipment is all building site common equipments, and drilling tool improves handling ease, cheap, directly can process, can restore to the original state again on other stratum, can reuse, relatively the equipment of other specialties, have reliable and stable, economical and practical advantage according to field condition.
3) environmental suitability is strong, can be applicable to various chiltern rock stratum and creep into.
4) core is got convenient and simple.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the core drilling tool in embodiment.
Number in the figure: 1-drill bit, 2-puts off shell, and 3-puts off spring, 4-core barrel, 5-reducing joint, 6-drilling rod, 7-sleeve pipe.
Detailed description of the invention
Embodiment
See Fig. 1, the present embodiment can improve according to traditional core drilling tool, existing core drilling tool comprises drill bit 1, core barrel 4 drilling rod 6 three part composition, wherein, drill bit 1 is fixedly installed on core barrel 4 one end, drill bit 1 diameter is 130mm, the diameter of core barrel 4 is slightly less than bit diameter, coaxially be connected by reducing joint 5 between core barrel 4 other end and drilling rod 6, drilling rod 6 is the hollow drill of diameter 50mm, and when drilling, drill bit 1 creeps into for punching, drill bit adopts annular bit, and middle part core is filled and clamp-oned in core barrel 4.
Drilling rod 6 is coaxially installed with a sleeve pipe 7, the bottom of sleeve pipe 7 and the welded top of reducing joint 5 seal, top keeps opening, bottom lock is formed and open-topped annular space between sleeve pipe 7 and drilling rod 6, the diameter of the present embodiment middle sleeve 7 is 110mm, length is 2000mm, the diameter difference of sleeve pipe and drill bit is 20mm, according to the bit diameter of conventional drilling tool in practical application, the diameter of sleeve pipe 7 can be less than the diameter 10-30mm of drill bit 1, casing length can be determined according to drilling depth, generally be set between 1-3m, when entering broken chiltern rock stratum exploratory drilling, the a large amount of broken sandstone precipitation of periphery is collected in the annular space between sleeve pipe 7 and drilling rod, because the diameter difference between sleeve pipe 7 and drill bit 1 is little, sleeve pipe is filled with the space above drill bit, not having a large amount of detritus is collapsed upon on drill bit, after having crept into, drilling tool can successfully promote, after drilling tool lifting to work plane, rinse by water under high pressure downwards whole cores taking-ups of collecting in this space can be analyzed from the upper opening of sleeve pipe.
In addition, be fixedly connected with by putting off shell 2 between core barrel 4 and drill bit 1, the inner chamber putting off shell 2 is fixedly embedded with and puts off spring 3, in drill bit drilling process, core is filled in core barrel 4, when promoting drilling tool, need at drill bit place, core to be separated with rock stratum body, avoid the core removed at core barrel internal break, cause sampling very few, the spring 3 that puts off putting off shell 2 inside being arranged on drill bit and core barrel place is a cone sheets spring, when drilling tool creeps into downwards, core can upwardly be filled in core barrel by spring, when drilling tool is carried, put off spring acting in opposition core on, by the castering action power of drilling tool, core is broken at drill bit rear card, ensure that the core sample integrity of core barrel inside, improve core extracting rate.
These are only that the concrete case study on implementation of the utility model illustrates, rights protection scope of the present utility model can not be limited with this.All equivalences done according to the utility model application claims and description change and amendment, all in the scope of the utility model protection.
Claims (5)
1. the simple and easy core drilling tool for the probing of broken chiltern rock stratum, comprise drill bit (1), core barrel (4) and drilling rod (6), it is characterized in that: described drill bit (1) is fixedly installed on core barrel (4) one end, coaxially be connected by reducing joint (5) between described core barrel (4) other end and drilling rod (6), described drilling rod (6) is coaxially installed with a sleeve pipe (7), forms bottom lock and open-topped annular space between described sleeve pipe (7) and drilling rod (6).
2. a kind of simple and easy core drilling tool for the probing of broken chiltern rock stratum according to claim 1, the bottom of described sleeve pipe (7) and the welded top of reducing joint (5) seal, cannula tip opening.
3. a kind of simple and easy core drilling tool for the probing of broken chiltern rock stratum according to claim 2, the diameter 10-30mm less of the diameter of drill bit (1) of described sleeve pipe (7).
4. a kind of simple and easy core drilling tool for the probing of broken chiltern rock stratum according to claim 3, the length of described sleeve pipe (7) is 1-3m.
5. a kind of simple and easy core drilling tool for the probing of broken chiltern rock stratum according to any one of claim 1-4, be fixedly connected with by putting off shell (2) between described core barrel (4) and drill bit (1), the described inner chamber putting off shell (2) is fixedly embedded with and puts off spring (3), squeezes off the core in core barrel during for promoting drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872815.9U CN205100916U (en) | 2015-11-04 | 2015-11-04 | A simple and easy core drilling tool that is used for broken chiltern rock stratum to drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872815.9U CN205100916U (en) | 2015-11-04 | 2015-11-04 | A simple and easy core drilling tool that is used for broken chiltern rock stratum to drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100916U true CN205100916U (en) | 2016-03-23 |
Family
ID=55516702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520872815.9U Expired - Fee Related CN205100916U (en) | 2015-11-04 | 2015-11-04 | A simple and easy core drilling tool that is used for broken chiltern rock stratum to drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916905A (en) * | 2018-01-02 | 2018-04-17 | 河南理工大学 | Reciprocating coring method and device for rock stratum sampling |
-
2015
- 2015-11-04 CN CN201520872815.9U patent/CN205100916U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916905A (en) * | 2018-01-02 | 2018-04-17 | 河南理工大学 | Reciprocating coring method and device for rock stratum sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20211104 |