CN204126579U - A kind of core drill for boring core machine - Google Patents
A kind of core drill for boring core machine Download PDFInfo
- Publication number
- CN204126579U CN204126579U CN201420501958.4U CN201420501958U CN204126579U CN 204126579 U CN204126579 U CN 204126579U CN 201420501958 U CN201420501958 U CN 201420501958U CN 204126579 U CN204126579 U CN 204126579U
- Authority
- CN
- China
- Prior art keywords
- drilling pipe
- core
- isosceles triangle
- boring bit
- hollow boring
- 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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- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
A kind of core drill for boring core machine, comprise hollow boring bit and the garter spring supporting with described hollow boring bit, described hollow boring bit comprises connecting rod and drilling pipe, the tail end of described drilling pipe is circumferentially evenly distributed with eight cutters, described drilling pipe offers 6 holes away from one end of described cutter, and the shape in described hole is isosceles triangle, and the drift angle of described isosceles triangle is 8-10 degree, the drift angle of described isosceles triangle is downward, and the base midline length of described isosceles triangle accounts for the 30-40% of described drilling pipe length; The inner wall section radius of circle of described garter spring is less than the outer wall cross section radius of circle 2mm of described drilling pipe.Core drill that the utility model provides, what described drilling pipe was offered is tri-angle-holed, facilitates cooling water to flow into from hole when drilling, the problem that when drilling, drill bit is overheated can better be solved, during use, garter spring is from top to bottom enclosed within the upper end of described drilling pipe, after drilling, easier core is taken out.
Description
Technical field
The utility model relates to a kind of core drill for boring core machine.
Background technology
Concrete coring machine is mainly used in cement concrete, bituminous concrete, the limestone bases such as highway, airport, harbour, harbour, dam and gets core and carry out resistance to compression, bending test, and maximum core can reach 700mm.In use, because concrete hardness is large, drill bit is easily overheated, makes its application life short, and gets core after playing finishing drilling and be not easy.
Summary of the invention
The purpose of this utility model is to provide a kind of core drill for boring core machine, is convenient to cooling water and cools drill bit more fully, also makes to get core easier.
For solving the problems of the technologies described above, the utility model provides a kind of core drill for boring core machine, comprise hollow boring bit and the garter spring supporting with described hollow boring bit, described hollow boring bit comprises connecting rod and drilling pipe, the tail end of described drilling pipe is circumferentially evenly distributed with eight cutters, described drilling pipe offers 6 holes away from one end of described cutter, the shape in described hole is isosceles triangle, the drift angle of described isosceles triangle is 8-10 degree, the drift angle of described isosceles triangle is downward, and the base midline length of described isosceles triangle accounts for the 30-40% of described drilling pipe length; The inner wall section radius of circle of described garter spring is less than the outer wall cross section radius of circle 2mm of described drilling pipe.
Further, described hollow boring bit is that stainless steel is one-body molded obtained.
Further, the length of described hollow boring bit is 10-20cm.
Further, the thickness of described hollow boring bit is 1.5-3cm.
Relative above-mentioned background technology, core drill that the utility model provides, what described drilling pipe was offered is tri-angle-holed, facilitating when drilling cooling water to flow into from hole, the problem that when drilling, drill bit is overheated can better be solved, during use, garter spring is from top to bottom enclosed within the upper end of described drilling pipe, after drilling, from bottom to top garter spring is struck down, by little rod passing hole, core is loosened in hollow boring bit, then core is taken out.
Accompanying drawing explanation
Fig. 1 is the structural representation of hollow boring bit;
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
Core of the present utility model is to provide a kind of core drill for boring core machine.In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
Composition graphs 1 and Fig. 2, a kind of core drill for boring core machine, comprises hollow boring bit 1 and the garter spring 2 supporting with hollow boring bit, and hollow boring bit comprises connecting rod 11 and drilling pipe 12, and the tail end of drilling pipe 12 is circumferentially evenly distributed with eight cutters 13,
Drilling pipe 12 offers 6 holes 14 away from one end of cutter 13, and the shape in hole 14 is isosceles triangle, and the drift angle of isosceles triangle is 8-10 degree, and the drift angle of isosceles triangle is downward, and the base midline length of isosceles triangle accounts for the 30-40% of drilling pipe length;
The inner wall section radius of circle of garter spring 2 is less than the outer wall cross section radius of circle 2mm of drilling pipe 12, and hollow boring bit 1 is that stainless steel is one-body molded obtained, and the length of hollow boring bit 1 is 10cm, and the thickness of hollow boring bit 1 is 1.5cm.
What drilling pipe 12 was offered is tri-angle-holed, facilitate cooling water to flow into from hole when drilling, the problem that when drilling, drill bit is overheated can better be solved, during use, garter spring 2 is from top to bottom enclosed within the upper end of drilling pipe 12, after drilling, from bottom to top garter spring 2 is struck down, by little rod passing hole 14, core is loosened in hollow boring bit 1, then core is taken out.
Claims (4)
1. one kind for boring the core drill of core machine, it is characterized in that: comprise hollow boring bit and the garter spring supporting with described hollow boring bit, described hollow boring bit comprises connecting rod and drilling pipe, the tail end of described drilling pipe is circumferentially evenly distributed with eight cutters, described drilling pipe offers 6 holes away from one end of described cutter, the shape in described hole is isosceles triangle, the drift angle of described isosceles triangle is 8-10 degree, the drift angle of described isosceles triangle is downward, and the base midline length of described isosceles triangle accounts for the 30-40% of described drilling pipe length; The inner wall section radius of circle of described garter spring is less than the outer wall cross section radius of circle 2mm of described drilling pipe.
2. the core drill for boring core machine according to claim 1, is characterized in that: described hollow boring bit is that stainless steel is one-body molded obtained.
3. the core drill for boring core machine according to claim 2, is characterized in that: the length of described hollow boring bit is 10-20cm.
4. the core drill for boring core machine according to claim 3, is characterized in that: the thickness of described hollow boring bit is 1.5-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501958.4U CN204126579U (en) | 2014-09-02 | 2014-09-02 | A kind of core drill for boring core machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501958.4U CN204126579U (en) | 2014-09-02 | 2014-09-02 | A kind of core drill for boring core machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126579U true CN204126579U (en) | 2015-01-28 |
Family
ID=52382946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420501958.4U Expired - Fee Related CN204126579U (en) | 2014-09-02 | 2014-09-02 | A kind of core drill for boring core machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360975A (en) * | 2018-04-02 | 2018-08-03 | 镇江市建科工程质量检测中心有限公司 | A kind of core drill and corning machine suitable for bituminous paving |
| CN110836789A (en) * | 2019-11-19 | 2020-02-25 | 郑海飞 | Municipal administration road detects and gets core machine drilling rod with concrete drilling |
-
2014
- 2014-09-02 CN CN201420501958.4U patent/CN204126579U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360975A (en) * | 2018-04-02 | 2018-08-03 | 镇江市建科工程质量检测中心有限公司 | A kind of core drill and corning machine suitable for bituminous paving |
| CN108360975B (en) * | 2018-04-02 | 2024-04-09 | 镇江市建设工程质量检测中心有限公司 | Core drill and core machine suitable for bituminous paving |
| CN110836789A (en) * | 2019-11-19 | 2020-02-25 | 郑海飞 | Municipal administration road detects and gets core machine drilling rod with concrete drilling |
| CN110836789B (en) * | 2019-11-19 | 2022-05-13 | 江门市建设监理顾问有限公司 | Municipal administration road detects and gets core machine drilling rod with concrete drilling |
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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 |
Granted publication date: 20150128 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |