CN208765985U - A drill bit for drilling soil samples in situ - Google Patents
A drill bit for drilling soil samples in situ Download PDFInfo
- Publication number
- CN208765985U CN208765985U CN201821162044.4U CN201821162044U CN208765985U CN 208765985 U CN208765985 U CN 208765985U CN 201821162044 U CN201821162044 U CN 201821162044U CN 208765985 U CN208765985 U CN 208765985U
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- CN
- China
- Prior art keywords
- drilling rod
- drill bit
- drill
- soil
- screw thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses the drill bits that a kind of original position drills through pedotheque, including fast joint, the first drilling rod, the second drilling rod and drill bit, first drilling rod, the second drilling rod are semi-circular tube structure, the both ends of first drilling rod and the second drilling rod are equipped with external screw thread, one end of fast joint is connected to motor, the other end is equipped with internal screw thread, one end of drill bit is equipped with internal screw thread, the other end is provided with cutting edge, first drilling rod and the second drilling rod are opposite and together, its both ends is spirally connected fast joint and drill bit respectively, forms complete round tube shape.The utility model is designed by split type drilling rod, it is easier to be drilled through out soil, while laborsaving, can preferably be kept the original traits of soil.
Description
Technical field
The utility model relates to the drill bits that a kind of original position drills through pedotheque.
Background technique
During geologic survey, the soil for needing to acquire nature carries out relevant analysis and research, collecting soil sample
Quality directly affect subsequent analysis as a result, therefore requiring to keep soil primitiveness as far as possible during collecting soil sample
Shape.
Currently used soil sampler passes through drill bit pressure and is inserted into soil, utilizes the frictional force band between drill bit and soil
The soil of certain depth realizes sample acquisition out.Power then has manual and electronic and to be equipped with corresponding auxiliary tool or machinery etc. more
Kind form.Drill bit form is broadly divided into two kinds of forms of circular tube shaped and circular groove shape.
Circular tube shaped drill bit is in insertion soil course, and soil and tube wall have friction, and this friction can be as drill bit be in soil
The increase of depth in earth and increase, therefore, after drilling, the soil sample in circular tube shaped drill bit is difficult to be taken out as former state.At present
Common mode is to be released soil sample from pipe with a push rod, and soil sample push is not only often more laborious, can not also be kept away
Exempt from that soil sample can be compacted, and then the original traits of soil can be changed.
Utility model content
In view of the above shortcomings of the prior art, the utility model provides the drill bit that a kind of original position drills through pedotheque, solves
Sample takes out the problem of difficult and compacting in the prior art.
To achieve the above object, the technical solution of the utility model is:
A kind of original position drills through the drill bit of pedotheque, including fast joint, the first drilling rod, the second drilling rod and drill bit, and first bores
Bar, the second drilling rod are semi-circular tube structure, and the both ends of the first drilling rod and the second drilling rod are equipped with external screw thread, one end of fast joint with
Motor connection, the other end are equipped with internal screw thread, and one end of drill bit is equipped with internal screw thread, and the other end is provided with cutting edge, the first drilling rod and second
Drilling rod is opposite and together, and both ends are spirally connected fast joint and drill bit respectively, forms complete round tube shape.
Preferably, the cutting edge is introversion wedge shape cutting edge.
Preferably, first drilling rod, the second drilling rod internal diameter be gradually reduced from fast joint end to drill bit, and outer diameter
It is gradually increased.
Compared with prior art, the utility model has the beneficial effects that:
1, drilling rod uses the split type structure of two semi-circular tubes, after drilling, twist off fast joint and drill bit, can be direct
Drilling rod is separated, is taken out from drilling rod convenient for pedotheque, avoids the compacting to pedotheque.
2, introversion wedge shape cutting edge is conducive to reduce drill bit friction in down stroke, and drilling rod internal diameter is gradually increased from bottom to top, under drill through
When native, the resistance of soil is gradually become smaller in drilling rod, is easy to drill bit and is travelled downwardly, and lower brill is laborsaving, meanwhile, drilling rod outer diameter is from bottom to top
In contraction-like, from the external soil that reduces to the resistance of drill bit downlink.
In short, the drill bit of the utility model is easier to drill through out soil, while laborsaving, soil primitiveness can be preferably kept
Shape.
Detailed description of the invention
Fig. 1 is the decomposition diagram of the utility model drill bit；
Fig. 2 is the diagrammatic cross-section of the utility model drill bit；
Description of symbols: 1- fast joint, the first drilling rod of 2-, the second drilling rod of 3-, 4- drill bit, 5- cutting edge.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, a kind of original position drills through the drill bit of pedotheque, including fast joint 1, the first drilling rod 2, second
Drilling rod 3 and drill bit 4.
First drilling rod 2, the second drilling rod 3 are semi-circular tube structure, are equipped with external screw thread at its both ends, when being combined, group
At the drilling rod of a circular tube shaped, the internal diameter of drilling rod becomes larger from the bottom up, in this way, under when drilling through soil, soil is upper in drilling rod
Row resistance gradually becomes smaller, and is easy to drill bit 4 and travels downwardly, and lower brill is laborsaving, meanwhile, the outer diameter of drilling rod gradually decreases from the bottom up, soil
Earth is only contacted with drilling rod lower part and drill bit 4, further reduces 4 friction in down stroke of drill bit.
The output axis connection of the tools such as 1 upper end of fast joint and motor, using the connection type of electric hand drill and drill bit, fastly
1 lower end of connector is tube-in-tube structure, and inner wall is equipped with the internal screw thread to match with drilling rod external screw thread.Drill bit 4 is hollow tubular structure, on
End is again provided with the internal screw thread to match with drilling rod external screw thread, and lower end is provided with the cutting edge 5 of introversion wedge shape, in 5 sections of drill bits 4 of cutting edge
Friction in down stroke very little, is easy to downlink.
When assembling, it is first that the first drilling rod 2 is opposite with the second drilling rod 3 and together with form a complete drilling rod, then will
Fast joint 1 is screwed into the upper end of drilling rod, and drill bit 4 is screwed into the lower end of drilling rod, so that drilling rod fixed column is constituted one completely
Drill bit.Drilling terminates, and after drill bit is extracted, unscrews fast joint 1 and drill bit 4, can be directly separated the first drilling rod 2 and the second drilling rod 3,
Convenient for pedotheque taking-up, adopted soil sample can preferably keep soil original traits, effectively prevent with push rod by pedotheque from
Existing laborious and compaction problems are released in drilling rod.
For above-described embodiment simply to illustrate that the technical ideas and features of the present invention, its purpose is allows this field
Interior those of ordinary skill can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.The equivalent changes or modifications that all essence according to the content of the present invention is made, should all cover in this reality
With in novel protection scope.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162044.4U CN208765985U (en) | 2018-07-20 | 2018-07-20 | A drill bit for drilling soil samples in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821162044.4U CN208765985U (en) | 2018-07-20 | 2018-07-20 | A drill bit for drilling soil samples in situ |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208765985U true CN208765985U (en) | 2019-04-19 |
Family
ID=66129056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821162044.4U Expired - Fee Related CN208765985U (en) | 2018-07-20 | 2018-07-20 | A drill bit for drilling soil samples in situ |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208765985U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594162A (en) * | 2020-06-08 | 2020-08-28 | 江苏省无锡探矿机械总厂有限公司 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
| CN112302643A (en) * | 2020-12-07 | 2021-02-02 | 中国电建集团贵州电力设计研究院有限公司 | Multi-functional geological survey probing device |
| CN117929020A (en) * | 2024-03-22 | 2024-04-26 | 赣州职业技术学院 | Soil detection device for landscaping |
-
2018
- 2018-07-20 CN CN201821162044.4U patent/CN208765985U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594162A (en) * | 2020-06-08 | 2020-08-28 | 江苏省无锡探矿机械总厂有限公司 | Undisturbed sampling drilling tool adopting semi-closed pipe structure |
| CN112302643A (en) * | 2020-12-07 | 2021-02-02 | 中国电建集团贵州电力设计研究院有限公司 | Multi-functional geological survey probing device |
| CN117929020A (en) * | 2024-03-22 | 2024-04-26 | 赣州职业技术学院 | Soil detection device for landscaping |
| CN117929020B (en) * | 2024-03-22 | 2024-05-28 | 赣州职业技术学院 | Soil detection device for landscaping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20210720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |