CN204283225U - A kind of combined type original position near-surface temperature survey drill bit - Google Patents
A kind of combined type original position near-surface temperature survey drill bit Download PDFInfo
- Publication number
- CN204283225U CN204283225U CN201420763458.8U CN201420763458U CN204283225U CN 204283225 U CN204283225 U CN 204283225U CN 201420763458 U CN201420763458 U CN 201420763458U CN 204283225 U CN204283225 U CN 204283225U
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- CN
- China
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- cutting edge
- drill bit
- hole
- cone point
- thermoprobe
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of combined type original position near-surface temperature survey drill bit, by bit body, first cutting edge, second cutting edge, movable cone point, screw and pin composition, bit body front end is conical structure and has cross bath, first cutting edge and the second cutting edge are be connected with bit body in cross-shaped insertion cross bath, movable cone point is arranged in the circular arc hole slot of the first cutting edge by pin, closely cooperate between movable cone point and the first cutting edge, bit body is provided with through hole, first cutting edge and the second cutting edge are provided with through thermoprobe holding hole, through hole is communicated with thermoprobe holding hole, the sharp shutoff thermoprobe holding hole of drill bit activity cone.The activity cone point of chisel edge ensure that can not enter into drill bit at drilling process soil particle makes the front hole of drill bit block, and also makes stratum can not be communicated with the external world, reaches the object of in site measurement shallow earth; Right-angled intersection formula cutting edge provides enough moments of torsion; Drill bit adopts fabricated structure, and installing/dismounting can be facilitated to keep in repair.
Description
Technical field
The utility model relates to a kind of thermometric drill bit, particularly relates to a kind of combined type original position near-surface temperature survey drill bit.
Background technology
Recent domestic non-renewable energy resources are day by day in short supply, and shallow layer geothermal energy is as a kind of cleanliness without any pollution, and reproducible novel energy is more and more subject to the attention of the whole society.The instrument being applied to near-surface temperature survey at present in domestic and international shallow layer geothermal energy exploration engineering field is less, and the thermometric mode that these instruments existing adopt mainly uses static pressure mode perforation device to be pressed into soil layer, then temperature probe is put into perforation device and carry out near-surface temperature survey, but this method has following two point defects: one is the disturbance causing soil layer strong, two is that underground point for measuring temperature is easily in communication with the outside, two point defects all can cause measurement result to have error, really can not accomplish in site measurement.
Summary of the invention
For the problems referred to above, the utility model provides a kind of combined type original position near-surface temperature survey drill bit.
The utility model is made up of bit body, the first cutting edge, the second cutting edge, movable cone point, screw and pin, bit body front end is conical structure and has cross bath, the cone angle of conical structure is 40 ° ~ 60 °, first cutting edge and the second cutting edge to be inserted in cross bath and are connected with bit body by screw, first cutting edge and the second cutting edge are cross-shaped, and the Breadth Maximum of the first cutting edge and the second cutting edge is greater than bit body external diameter 3 ~ 5mm.The sharp bottom of movable cone is designed to circular arc, movable cone point is arranged in the circular arc hole slot of the first cutting edge by pin, closely cooperate between movable cone point and the first cutting edge, movable cone point has inclined-plane, angle between inclined-plane and thermoprobe holding hole center line is 30 ° ~ 45 °, be convenient to thermoprobe point is bored in activity push open, movable cone point can outwards rotate 60 °.Bit body is provided with through hole, and the first cutting edge and the second cutting edge are provided with through thermoprobe holding hole, and through hole is communicated with thermoprobe holding hole, the sharp shutoff thermoprobe holding hole of drill bit activity cone.
The beneficial effects of the utility model:
Drill bit arrives formation at target locations in the mode of rotary drilling, temperature probe is transferred to drill bit by drill pipe bore, promotion activity cone point rotates, thermoprobe insert into stratum is made to carry out temperature survey, the disturbance of formation drops to minimum by the mode of rotary drilling, the activity cone point of chisel edge ensure that can not enter into drill bit at drilling process soil particle makes the front hole of drill bit block, and also makes stratum can not be communicated with the external world, reaches the object of in site measurement shallow earth; Right-angled intersection formula cutting edge provides enough moments of torsion; Drill bit adopts fabricated structure, and installing/dismounting can be facilitated to keep in repair.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is sectional view of the present utility model.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is using state schematic diagram of the present utility model.
Detailed description of the invention
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present embodiment is made up of bit body 1, first cutting edge 2, second cutting edge 3, movable cone point 4, screw 5 and pin 6, bit body 1 front end is conical structure and has cross bath, the cone angle of conical structure is 40 ° ~ 60 °, first cutting edge 2 and the second cutting edge 3 to be inserted in cross bath and are connected with bit body 1 by screw 5, first cutting edge 2 and the second cutting edge 3 are in cross-shaped, and the Breadth Maximum of the first cutting edge 2 and the second cutting edge 3 is greater than bit body 1 external diameter 3 ~ 5mm.Sharp 4 bottoms of movable cone are designed to circular arc, movable cone point 4 is arranged in the circular arc hole slot of the first cutting edge 2 by pin 6, closely cooperate between movable cone point 4 and the first cutting edge 2, movable cone point 4 has inclined-plane 9, angle between inclined-plane 9 and thermoprobe holding hole 8 center line is 30 ° ~ 45 °, be convenient to thermoprobe 10 pushed open by activity cone point 4, movable cone point 4 can outwards rotate 60 °.Bit body 1 is provided with through hole 7, and the first cutting edge 2 and the second cutting edge 3 are provided with through thermoprobe holding hole 8, and through hole 7 is communicated with thermoprobe holding hole 8, the sharp 4 shutoff thermoprobe holding holes 8 of drill bit activity cone.
Use procedure of the present utility model: refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5,
1, during the utility model boring, sharp 4 shutoff of movable cone are at thermoprobe holding hole 8 place, and owing to being closely cooperate between activity cone point 4 and the first cutting edge 2, movable cone point 4 can not be opened.
2, when after the degree of depth being drilled into needs, on carry drill bit one section of height, the top of thermoprobe 10 from drilling rod is inserted, thermoprobe 10 inserts the thermoprobe holding hole 8 of the first cutting edge 2 and the second cutting edge 3 from the through hole 7 of bit body 1, continue to insert downwards, activity cone point 4 is pushed open by thermoprobe 10, and afterwards, thermoprobe 10 stretches out from drill bit and carries out thermometric.
Claims (5)
1. a combined type original position near-surface temperature survey drill bit, it is characterized in that: be by bit body (1), first cutting edge (2), second cutting edge (3), movable cone point (4), screw (5) and pin (6) composition, bit body (1) front end is conical structure and has cross bath, first cutting edge (2) and the second cutting edge (3) are inserted in cross bath and are also connected with bit body (1) by screw (5), first cutting edge (2) and the second cutting edge (3) are in cross-shaped, movable cone point (4) bottom is designed to circular arc, movable cone point (4) is arranged on by pin (6) in the circular arc hole slot of the first cutting edge (2), closely cooperate between movable cone point (4) and the first cutting edge (2), movable cone point (4) has inclined-plane (9), bit body (1) is provided with through hole (7), first cutting edge (2) and the second cutting edge (3) are provided with through thermoprobe holding hole (8), through hole (7) is communicated with thermoprobe holding hole (8), drill bit activity cone point (4) shutoff thermoprobe holding hole (8).
2. a kind of combined type original position near-surface temperature survey drill bit according to claim 1, is characterized in that: the cone angle of described conical structure is 40 ° ~ 60 °.
3. a kind of combined type original position near-surface temperature survey drill bit according to claim 1, is characterized in that: described the first cutting edge (2) is greater than bit body (1) external diameter 3 ~ 5mm with the Breadth Maximum of the second cutting edge (3).
4. a kind of combined type original position near-surface temperature survey drill bit according to claim 1, is characterized in that: the angle between described inclined-plane (9) and thermoprobe holding hole (8) center line is 30 ° ~ 45 °.
5. a kind of combined type original position near-surface temperature survey drill bit according to claim 1, is characterized in that: described activity cone point (4) can outwards rotate 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763458.8U CN204283225U (en) | 2014-12-05 | 2014-12-05 | A kind of combined type original position near-surface temperature survey drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763458.8U CN204283225U (en) | 2014-12-05 | 2014-12-05 | A kind of combined type original position near-surface temperature survey drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283225U true CN204283225U (en) | 2015-04-22 |
Family
ID=52866400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420763458.8U Withdrawn - After Issue CN204283225U (en) | 2014-12-05 | 2014-12-05 | A kind of combined type original position near-surface temperature survey drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204283225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405291A (en) * | 2014-12-05 | 2015-03-11 | 吉林大学 | Combined in-situ shallow layer geotherm measurement drill |
| CN109209238A (en) * | 2018-10-27 | 2019-01-15 | 江苏中煤地质工程研究院有限公司 | A kind of Portable in-situ near-surface temperature survey drill bit |
-
2014
- 2014-12-05 CN CN201420763458.8U patent/CN204283225U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405291A (en) * | 2014-12-05 | 2015-03-11 | 吉林大学 | Combined in-situ shallow layer geotherm measurement drill |
| CN109209238A (en) * | 2018-10-27 | 2019-01-15 | 江苏中煤地质工程研究院有限公司 | A kind of Portable in-situ near-surface temperature survey drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |