CN210370562U - Core-pulling mechanism - Google Patents
Core-pulling mechanism Download PDFInfo
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- CN210370562U CN210370562U CN201921159330.XU CN201921159330U CN210370562U CN 210370562 U CN210370562 U CN 210370562U CN 201921159330 U CN201921159330 U CN 201921159330U CN 210370562 U CN210370562 U CN 210370562U
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- drilling tool
- assembly
- core
- core barrel
- water outlet
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Abstract
The utility model discloses a core taking mechanism, assembly and the outer assembly of drilling tool in the drilling tool, the outer assembly cover of drilling tool is established assembly outside in the drilling tool, the outer assembly of drilling tool with the assembly rotates in the drilling tool to be connected, the end of assembly is provided with the drill bit in the drilling tool, the outer assembly of drilling tool with be provided with the space in the drilling tool between the assembly, the outer assembly of drilling tool is provided with the water inlet, the water inlet communicates to the space, the assembly is provided with the cavity that is used for holding the core in the drilling tool, the assembly is provided with interior water outlet channel in the drilling tool, the outer assembly of drilling tool is provided with the water course of going out, interior water outlet channel go out the water course and the cavity intercommunication. The sand and rock powder blocked in the drilling tool inner assembly is washed out by water pressure, so that the rock core can be smoothly taken out from the drilling tool inner assembly, the artificial rock core damage caused by the hammer knocking of workers at an orifice is avoided, and the whole rock core is protected.
Description
Technical Field
The utility model relates to an earth sampling equipment field, especially a mechanism of coring.
Background
In the building engineering detection, a drilling method is often adopted to detect the pile body concrete of the large-diameter cast-in-situ bored pile. However, the concrete core is not easy to pour out in the core-pulling drilling tool, and if the core barrel is knocked by a hammer, the concrete core in the core barrel is knocked, broken or shattered, so that objective evaluation of a technical worker on a pile body is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a mechanism of coring can provide the protection to the whole of core.
The technical proposal adopted by the utility model to solve the technical problems is that,
according to the utility model discloses an aspect provides a mechanism of coring, assembly and the outer assembly of drilling tool in the drilling tool, the outer assembly cover of drilling tool is established assembly outside in the drilling tool, the outer assembly of drilling tool with the assembly rotates in the drilling tool to be connected, the end of assembly is provided with the drill bit in the drilling tool, the outer assembly of drilling tool with be provided with the space in the drilling tool between the assembly, the outer assembly of drilling tool is provided with the water inlet, the water inlet intercommunication to the space, the assembly is provided with the cavity that is used for holding the core in the drilling tool, the assembly is provided with interior water outlet channel in the drilling tool, the outer assembly of drilling tool is provided with out the water course, interior water outlet channel go out the water course reach the cavity intercommunication.
The beneficial effects of the utility model are that, wash out the grit rock dust of card in the assembly in the drilling tool with the hydraulic pressure, make the core take out smoothly in the assembly in can following the drilling tool, avoid letting the workman strike with the hammer at the drill way and cause artificial core to destroy, provide the protection to the whole of core.
According to the utility model discloses a mechanism of coring of first aspect, assembly includes core barrel, core barrel joint and drilling tool core in the drilling tool, the outer assembly of drilling tool includes outer tube and outer tube joint, outer tube joint with the outer tube rigid coupling, core barrel joint with the core barrel rigid coupling, the outer tube with be provided with between the core barrel the space, core barrel joint with pass through between the outer tube joint the drilling tool core is connected, the one end of drilling tool core is fixed on the outer tube joint, the other end rotates to be connected on the core barrel joint. The outer pipe joint drives the outer pipe to rotate, the drill bit is driven to drill holes in the ground bottom and cut rocks annularly, the rock core pipe is kept still due to the action of friction force, and the rock is continuously sleeved in a cavity in the rock core pipe to form a columnar rock core.
According to the utility model discloses a mechanism of coring of first aspect, the drilling tool core with be provided with rolling bearing between the core barrel. The drill core rotates in the core barrel through the rotary bearing.
According to the utility model discloses a mechanism of coring of first aspect, interior water outlet channel sets up in the drilling tool core. Water enters from the lower end of the cavity and flows upwards to flow out of the core taking mechanism along the inner water outlet channel.
According to the utility model discloses a mechanism of coring of first aspect, the cavity sets up in the core barrel, the cavity is close to the one end setting of core barrel coupling is sunken sphere. The smooth transition spherical surface is convenient for rock debris to be separated.
According to the utility model discloses a mechanism of coring of first aspect, the drilling tool core passes through the screw thread to be fixed on the outer pipe joint.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic view of the installation structure of the present invention;
figure 2 is a cross-sectional view of the outer pipe joint of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, the utility model discloses a mechanism of coring, assembly 20 and assembly 10 outside the drilling tool in the drilling tool, assembly 10 cover is established outside assembly 20 in the drilling tool, assembly 10 outside the drilling tool with assembly 20 rotates in the drilling tool and connects, assembly 20's end is provided with the drill bit in the drilling tool, assembly 10 outside the drilling tool with be provided with space 13 in the drilling tool between the assembly 20, assembly 10 is provided with water inlet 15 outside the drilling tool, water inlet 15 intercommunication to space 13, assembly 20 is provided with the cavity 24 that is used for holding the core in the drilling tool, assembly 20 is provided with interior water outlet 25 in the drilling tool, assembly 10 is provided with outer water course 14 of going out outside the drilling tool, interior water outlet 25 water outlet 14 reaches cavity 24 intercommunication.
When the core taking device is used, water is injected into the water inlet 15, the water reaches the lower ends of the inner assembly 20 and the outer assembly 10 of the drilling tool along the gap 13, the water flows in the cavity 24 along with the increase of the injected water amount and flows out of the core taking mechanism along the cavity 24, the inner water outlet channel 25 and the outer water outlet channel 14, and in the water flowing process, sandstone powder clamped in the inner assembly 20 of the drilling tool is washed out, so that a core can be smoothly taken out of the inner assembly 20 of the drilling tool, artificial core damage caused by hammering of workers at orifices is avoided, and the whole core is protected.
Wherein, in some embodiments, assembly 20 includes core barrel 22, core barrel coupling 21 and drilling tool core 23 in the drilling tool, assembly 10 includes outer tube 12 and outer tube coupling 11 outside the drilling tool, outer tube coupling 11 with outer tube 12 rigid coupling, core barrel coupling 21 with core barrel 22 rigid coupling, outer tube 12 with be provided with between the core barrel 22 space 13, core barrel coupling 21 with pass through between the outer tube coupling 11 the drilling tool core 23 is connected, the one end of drilling tool core 23 is fixed on outer tube coupling 11, and the other end rotates to be connected on core barrel coupling 21, preferably, drilling tool core 23 passes through the thread tightening on outer tube coupling 11. When the device is used, the external driving mechanism is used for driving the outer pipe joint 11 to drive the outer pipe 12 to rotate, so that the drill bit is driven to drill holes in the ground bottom and cut rocks in an annular mode, the rock core pipe 22 is kept still due to the action of friction force, and the rock is continuously sleeved into the cavity 24 in the rock core pipe 22 to form a complete cylindrical rock core.
In this embodiment, the entire coring mechanism is first placed in concrete and the outer pipe joint 11 is rotated, preferably with a rotary bearing 30 disposed between the drill core 23 and the core barrel 22. The drill core 23 rotates in the core barrel 22 via a rotary bearing 30. Thus, the drill bit at the lower part of the outer pipe 12 drills the concrete without the core barrel 22 rotating and forms a core in the core barrel 22, and during drilling, the water inlet 15 is filled with water, preferably, referring to fig. 2, both the water inlet 15 and the outer waterway 14 are provided at the outer pipe joint 11. Water flows into the void 13 in the directions a1 and a2 and exits the coring mechanism along the paths B1 and B2 to flush out the sandstone powder trapped in the drill inner assembly 20.
In addition, some of the water injected from the water inlet 15 will flow back out along the direction B3 and flush the debris at the drill bit, preventing blockage.
In some embodiments, the inner water outlet channel 25 is disposed within the drill core 23. Water enters from the lower end of the cavity 24 and flows upwardly out of the core-picking mechanism along the inner water outlet channel 25.
In some embodiments, the cavity 24 is disposed in the core barrel 22, and one end of the cavity 24 near the core barrel joint 21 is provided with a concave spherical surface. The smooth transition spherical surface is convenient for rock debris to be separated.
While the invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The core taking mechanism is characterized by comprising a drilling tool inner assembly and a drilling tool outer assembly, wherein the drilling tool outer assembly is sleeved outside the drilling tool inner assembly, the drilling tool outer assembly is rotatably connected with the drilling tool inner assembly, a drill bit is arranged at the tail end of the drilling tool inner assembly, a gap is formed between the drilling tool outer assembly and the drilling tool inner assembly, a water inlet is formed in the drilling tool outer assembly and communicated with the gap, a cavity for containing a core is formed in the drilling tool inner assembly, an inner water outlet channel is formed in the drilling tool inner assembly, an outer water outlet channel is formed in the drilling tool outer assembly, and the inner water outlet channel, the outer water outlet channel and the cavity are communicated.
2. The core-pulling mechanism according to claim 1, wherein the drilling tool inner assembly comprises a core barrel, a core barrel joint and a drilling tool core, the drilling tool outer assembly comprises an outer pipe and an outer pipe joint, the outer pipe joint is fixedly connected with the outer pipe, the core barrel joint is fixedly connected with the core barrel, the gap is arranged between the outer pipe and the core barrel, the core barrel joint is connected with the outer pipe joint through the drilling tool core, one end of the drilling tool core is fixed on the outer pipe joint, and the other end of the drilling tool core is rotatably connected with the core barrel joint.
3. A coring mechanism as claimed in claim 2 wherein a rotary bearing is provided between the drill core and the core barrel.
4. A core-pulling mechanism according to claim 2 or 3, wherein said inner water outlet channel is provided in said drill core.
5. A coring mechanism as claimed in claim 2 or 3 wherein the cavity is provided in the core barrel, the cavity being provided with a concave spherical surface adjacent an end of the core barrel joint.
6. A coring mechanism according to claim 2, wherein the drill core is threadably secured to the outer coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921159330.XU CN210370562U (en) | 2019-07-22 | 2019-07-22 | Core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921159330.XU CN210370562U (en) | 2019-07-22 | 2019-07-22 | Core-pulling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370562U true CN210370562U (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921159330.XU Active CN210370562U (en) | 2019-07-22 | 2019-07-22 | Core-pulling mechanism |
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| CN (1) | CN210370562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630199A (en) * | 2019-07-22 | 2019-12-31 | 鹤山市建筑设计院有限公司 | Core-pulling mechanism |
| CN111889503A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | Sampling and in-situ remediation device for volatile organic compound contaminated soil and application thereof |
-
2019
- 2019-07-22 CN CN201921159330.XU patent/CN210370562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630199A (en) * | 2019-07-22 | 2019-12-31 | 鹤山市建筑设计院有限公司 | Core-pulling mechanism |
| CN111889503A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | Sampling and in-situ remediation device for volatile organic compound contaminated soil and application thereof |
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