CN216894315U - A auxiliary device for promoting clear hole efficiency of probing - Google Patents
A auxiliary device for promoting clear hole efficiency of probing Download PDFInfo
- Publication number
- CN216894315U CN216894315U CN202123270357.6U CN202123270357U CN216894315U CN 216894315 U CN216894315 U CN 216894315U CN 202123270357 U CN202123270357 U CN 202123270357U CN 216894315 U CN216894315 U CN 216894315U
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- connecting part
- auxiliary device
- drilling
- connecting portion
- core sampler
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- 230000001737 promoting effect Effects 0.000 title claims description 4
- 238000005553 drilling Methods 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 239000013049 sediment Substances 0.000 claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 abstract description 6
- 239000002002 slurry Substances 0.000 abstract description 5
- 239000004576 sand Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses an auxiliary device for improving the hole cleaning efficiency of drilling, which is connected to a drill rod and is characterized by comprising a core sampler, a slag collecting cavity pipe and a bidirectional connector, wherein the bidirectional connector is columnar and is provided with an upper connecting part, a middle connecting part and a lower connecting part, the upper connecting part is connected with the lower end of the drill rod, the middle connecting part is connected with the lower end of the slag collecting cavity pipe, and the lower connecting part is connected with the upper end of the core sampler. The utility model has the advantages that: in the drilling and hole cleaning, the large-particle sediment in the slurry can be effectively removed, and particularly for medium-coarse sand and bedrock stratums, compared with the traditional drilling device, the device not only ensures the high efficiency and pertinence of hole cleaning, but also has the advantages of convenience in operation, low cost and the like, and has good technical advantages and application prospects.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering drilling, and particularly relates to an auxiliary device for improving drilling hole cleaning efficiency.
Background
Drilling is currently the only method by which core samples can be taken directly from the deep underground, for which purpose the performance of the drilling machinery is constantly optimized. The existing drilling sampling requires that holes are carefully cleaned and disturbed soil is removed before sampling an undisturbed soil sample, and the thickness of residual sediments at the bottom of the holes is not more than the length of the waste soil section of the soil sampler.
Therefore, thorough and sufficient hole cleaning must be ensured. The existing hole cleaning mode is to take out sediment at the bottom of a hole through the circulation of slurry in a drilling hole, and has good hole cleaning effect on the drilling of conventional cohesive soil and silty soil strata. However, when the rock core tube and the bedrock stratum meet, the large sediment particles generated in drilling are more, and the efficiency of the mud circulation is not high, so that the wall of the rock core tube and a drill rod are continuously abraded in a drill hole, the drilling efficiency is influenced, and the service lives of the rock core tube and the drill rod are shortened.
The need for an auxiliary device for drilling and clearing holes is needed in the art, so that the hole clearing efficiency during drilling of medium coarse sand and bedrock formations is effectively improved.
Disclosure of Invention
The utility model aims to provide an auxiliary device for improving the hole cleaning efficiency of drilling according to the defects of the prior art, and the auxiliary device effectively cleans large-particle sediments in slurry by arranging a slag collecting cavity pipe above a core sampler.
The purpose of the utility model is realized by the following technical scheme:
the utility model provides an auxiliary device for promoting clear hole efficiency of probing, auxiliary device connects on the drilling rod, its characterized in that auxiliary device includes core sampler, collection sediment chamber pipe and two-way connector, two-way connector is the column and has upper junction portion, well connecting portion and lower connecting portion, upper junction portion with the drilling rod lower extreme is connected, well connecting portion with the lower extreme of collection sediment chamber pipe is connected, lower connecting portion with the upper end of core sampler is connected.
The upper connecting part is an internal thread, the middle connecting part is an external thread, and the lower connecting part is an internal thread.
The slag collecting cavity pipe is a pipe body with an upward opening, and an internal thread connecting part is arranged on the lower end surface of the slag collecting cavity pipe and is in threaded fit connection with the middle connecting part on the bidirectional connector; the lower end of the drill rod extends into the slag collecting cavity pipe and is in threaded fit with the upper connecting part of the bidirectional connector; the core sampler is a body with a downward opening, the upper end face of the core sampler is provided with an external thread connecting part and is connected with the lower connecting part in a thread matching way on the two-way connector.
The outer diameter of the core sampler is the same as that of the slag collecting cavity pipe.
The utility model has the advantages that: in the drilling and hole cleaning, the large-particle sediment in the slurry can be effectively removed, and particularly for medium-coarse sand and bedrock stratums, compared with the traditional drilling device, the device not only ensures the high efficiency and pertinence of hole cleaning, but also has the advantages of convenience in operation, low cost and the like, and has good technical advantages and application prospects.
Drawings
FIG. 1 is a schematic view of an auxiliary device for improving the efficiency of drilling and cleaning holes according to the present invention;
FIG. 2 is a schematic view of the slag collection chamber tube and bi-directional connector of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
referring to fig. 1-2, the labels in the figure are: the drill pipe comprises a drill pipe 1, a slag collecting cavity pipe 2, a two-way connector 3, an upper connecting part 3a, a middle connecting part 3b, a lower connecting part 3c, a core sampler 4, a pump 5, a mud pit 6 and an internal thread connecting part 7.
Example (b): as shown in fig. 1 and 2, the present embodiment specifically relates to an auxiliary device for improving the hole cleaning efficiency of drilling, which is installed at the lower end of a drill rod 1 and can effectively remove large-particle sediments in slurry, so as to improve the hole cleaning efficiency while preventing or reducing drilling pipe fittings, and mainly comprises a core sampler 4, a sediment collection cavity tube 2 and a bidirectional connector 3, wherein the bidirectional connector 3 is columnar and sequentially comprises an upper connecting part 3a, a middle connecting part 3b and a lower connecting part 3c from top to bottom; when in use, the upper connecting part 3a is connected with the drill rod 1, the middle connecting part 3b is connected with the slag collecting cavity pipe 2, and the lower connecting part 3c is connected with the core sampler 4.
As shown in fig. 1 and 2, the upper connecting part 3a and the lower connecting part 3c are both in the form of an internal thread, while the middle connecting part 3b is in the form of an external thread; when in installation and use, the upper connecting part 3a (internal thread) of the bidirectional connector 3 is in threaded assembly connection with the lower end of the drill rod 1; the slag collecting cavity pipe 2 is a pipe body with an upward opening, the lower end surface of the slag collecting cavity pipe is closed, an internal thread connecting part 7 is arranged at the central axis of the slag collecting cavity pipe, the internal thread connecting part 7 is in threaded assembly connection with a middle connecting part 3b (external thread) of the two-way connector 3, and the slag collecting cavity pipe 2 is sleeved at the lower end of the drill rod 1 during specific installation; the core sampler 4 is a sampling tube body with a downward opening, the upper end surface of the core sampler is closed, but an external thread connecting part is arranged at the central axis of the core sampler, and the external thread connecting part is in threaded assembly connection with the lower connecting part 3c (internal thread) of the bidirectional connector 3.
As shown in figure 1, the slag collecting cavity pipe 2 and the core sampler 4 have the same outer diameter and the length not more than 1m, the cavity opening and the drilling direction are opposite, and the material is high-strength steel.
As shown in fig. 1 and 2, the working method of the auxiliary device in this embodiment specifically includes the following steps:
(1) the drilling rig is in place and drilling is performed with the drill rod 1.
(2) After the hole is opened, when drilling to the medium and coarse sand and bedrock stratum, the auxiliary device in the embodiment is installed on the drill rod 1, namely the slag collecting cavity pipe 2 is positioned at the upper part of the core sampler 4, and the drilling is continued downwards, and the large-particle sediments circulating in the mud (realized by the pump 5 and the mud pit 6) continuously fall into the slag collecting cavity pipe 2 in the drilling process.
(3) After the drill rod is drilled to a preset depth, the drill rod 1 is lifted upwards, and the slag collecting cavity pipe 2 is used for cleaning collapsed disturbed soil in the drill hole in the process.
(4) After the drill core sampler 4 and the two-way connector 3 are lifted to the ground, the sediment in the sediment collecting cavity tube 2 is cleaned.
(5) And repeating the steps 2-4 until the hole is finished.
Claims (4)
1. The utility model provides an auxiliary device for promoting clear hole efficiency of probing, auxiliary device connects on the drilling rod, its characterized in that auxiliary device includes core sampler, collection sediment chamber pipe and two-way connector, two-way connector is the column and has upper junction portion, well connecting portion and lower connecting portion, upper junction portion with the drilling rod lower extreme is connected, well connecting portion with the lower extreme of collection sediment chamber pipe is connected, lower connecting portion with the upper end of core sampler is connected.
2. An auxiliary device for improving the efficiency of drilling and cleaning a hole according to claim 1, wherein said upper connecting portion is internally threaded, said middle connecting portion is externally threaded, and said lower connecting portion is internally threaded.
3. The auxiliary device for improving the hole cleaning efficiency of drilling according to claim 2, wherein the slag collecting cavity pipe is a pipe body with an upward opening, and an internal thread connecting part is arranged on the lower end surface of the slag collecting cavity pipe and is in thread fit connection with the middle connecting part on the two-way connector; the lower end of the drill rod extends into the slag collecting cavity pipe and is in threaded fit with the upper connecting part of the bidirectional connector; the core sampler is a body with a downward opening, the upper end face of the core sampler is provided with an external thread connecting part and is connected with the lower connecting part in a thread matching way on the two-way connector.
4. An auxiliary device for improving the efficiency of hole cleaning by drilling according to claim 1, wherein the outer diameter of the core sampler is the same as the outer diameter of the slag chamber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123270357.6U CN216894315U (en) | 2021-12-24 | 2021-12-24 | A auxiliary device for promoting clear hole efficiency of probing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123270357.6U CN216894315U (en) | 2021-12-24 | 2021-12-24 | A auxiliary device for promoting clear hole efficiency of probing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894315U true CN216894315U (en) | 2022-07-05 |
Family
ID=82208240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123270357.6U Active CN216894315U (en) | 2021-12-24 | 2021-12-24 | A auxiliary device for promoting clear hole efficiency of probing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894315U (en) |
-
2021
- 2021-12-24 CN CN202123270357.6U patent/CN216894315U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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| CP03 | Change of name, title or address |