CN201165848Y - Hole digger drill head - Google Patents
Hole digger drill head Download PDFInfo
- Publication number
- CN201165848Y CN201165848Y CNU2008200436241U CN200820043624U CN201165848Y CN 201165848 Y CN201165848 Y CN 201165848Y CN U2008200436241 U CNU2008200436241 U CN U2008200436241U CN 200820043624 U CN200820043624 U CN 200820043624U CN 201165848 Y CN201165848 Y CN 201165848Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- drilling rod
- blade
- helical blade
- hole digger
- 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)
Abstract
The utility model discloses a drill bit of the hole digger used for forest planting and wind proofing operation to banana. The drill bit comprises a drilling rod, a soil cutting blade and a helical blade arranged on the drilling rod, wherein, the soil cutting blade is arranged at the lower end of the helical blade, an inverted helical blade is arranged on the drilling rod near the upside of the soil cutting blade, the inverted helical blade is welded on the drilling rod; the drill bit of the hole digger used for forest planting and wind proofing operation to banana has the advantages that the drill bit sinking and locking can be avoided during the operation of the hole digger, the structure is simple, and the cost is low.
Description
Technical field
The utility model relates to the technology of earth auger, especially a kind of earth auger drill bit.
Background technology
Earth auger utilization in afforestation, the windproof protection operation of banana is very extensive.Be characterized in: easy to operate, with low cost, labour intensity is low, operating efficiency can reach per hour 100-150 cave.But, owing to the mechanism of earth auger drill bit, no matter be that sagging, the stuck phenomenon of drill bit often takes place when work for portable earth auger or motor-driven large-scale earth auger.Its operating principle is: the native blade of cutting that the rotation of drilling rod drives drill bit carries out soil cutting, and the soil of chopping transfers out the acupoint through helical blade, thereby finishes the process of digging the cave.When running into tree root, small stone, banana bud or disposable during at paddy-field-working to cut soil blocked up, cause drill bit to sink easily or stuck.Must manually drill bit be dug out like this, influence the operating efficiency of earth auger greatly.
The utility model content
The utility model purpose provides a kind of sagging or stuck, simple in structure earth auger drill bit of drill bit in the earth auger course of work of avoiding.
For solving the problems of the technologies described above, earth auger drill bit of the present utility model comprises drilling rod, cut native blade and be located at helical blade on the drilling rod, cut native blade and be located at the lower end of helical blade, be provided with the backpitch sheet near the drilling rod of cutting above the native blade, the backpitch sheet is welded on the drilling rod.
After the utility model adopts said structure, by on the drilling rod of cutting above the native blade, the backpitch sheet being set, this backpitch sheet restriction drill bit decrease speed, run into tree root, small stone, banana bud or reducing the amount of feeding of cutting soil during at paddy-field-working, cut the soil of native blade cut like this and will be exported the acupoint by helical blade easily, thereby solved sagging, the stuck problem of earth auger drill bit effectively.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the utility model structure chart.
Among the figure: 1 cuts native blade, 2 drilling rods, 3 helical blades, 4 backpitch sheets, 5 removal holes, 6 screwed holes.
The specific embodiment
Shown in Figure 1, earth auger drill bit of the present utility model comprises to be cut native blade 1, drilling rod 2 and is located at helical blade 3 on the drilling rod 2, cut native blade 1 and be located at the lower end of helical blade 3, be provided with backpitch sheet 4 near the drilling rod of cutting above the native blade 12, backpitch sheet 4 is welded on the drilling rod 2.By being welded on the backpitch sheet 4 restriction drill bit decrease speeds on the drill bit, run into tree root, small stone, banana bud or reducing the amount of feeding of cutting soil during at paddy-field-working, cut the soil of native blade 1 cutting like this and will be exported acupoints by helical blade 3 easily, thereby solved sagging, the stuck problem of earth auger drill bit effectively.Be provided with screwed hole 6 in the upper end of drilling rod 2, be convenient to being connected of drill bit and motivation mechanism, removal hole 5 is set on the drilling rod below the screwed hole 6, be convenient to remove and install.After adopting the utility model,, improved the efficient of earth auger greatly no matter be that the phenomenon that drill bit sink does not all appear in portable earth auger or motor-driven large-scale earth auger.
Claims (1)
1, a kind of earth auger drill bit comprises and cuts native blade (1), drilling rod (2) and be located at helical blade (3) on the drilling rod (2), cut native blade (1) and be located at the lower end of helical blade (3), it is characterized in that: be provided with backpitch sheet (4) near the drilling rod (2) of cutting native blade (1) top, backpitch sheet (4) is welded on the drilling rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200436241U CN201165848Y (en) | 2008-01-31 | 2008-01-31 | Hole digger drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200436241U CN201165848Y (en) | 2008-01-31 | 2008-01-31 | Hole digger drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165848Y true CN201165848Y (en) | 2008-12-17 |
Family
ID=40191233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200436241U Expired - Fee Related CN201165848Y (en) | 2008-01-31 | 2008-01-31 | Hole digger drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165848Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103314678A (en) * | 2012-08-15 | 2013-09-25 | 秦世昌 | Nest-making device |
| CN104584716A (en) * | 2015-02-09 | 2015-05-06 | 李阳铭 | Spiral bit capable of conveniently drilling into soil of deep scarification cultivation machine |
| CN104604380A (en) * | 2015-02-15 | 2015-05-13 | 李阳铭 | Turnover type connecting rod system of subsoiling cultivator |
| CN105089507A (en) * | 2015-09-01 | 2015-11-25 | 华南农业大学 | Efficient soil breaking drill bit |
| CN105927158A (en) * | 2016-04-26 | 2016-09-07 | 郭玉 | Portable-type drill bit of twist drill |
-
2008
- 2008-01-31 CN CNU2008200436241U patent/CN201165848Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103314678A (en) * | 2012-08-15 | 2013-09-25 | 秦世昌 | Nest-making device |
| CN104584716A (en) * | 2015-02-09 | 2015-05-06 | 李阳铭 | Spiral bit capable of conveniently drilling into soil of deep scarification cultivation machine |
| CN104604380A (en) * | 2015-02-15 | 2015-05-13 | 李阳铭 | Turnover type connecting rod system of subsoiling cultivator |
| CN105089507A (en) * | 2015-09-01 | 2015-11-25 | 华南农业大学 | Efficient soil breaking drill bit |
| CN105089507B (en) * | 2015-09-01 | 2017-12-26 | 华南农业大学 | A kind of drill bit that efficiently breaks ground |
| CN105927158A (en) * | 2016-04-26 | 2016-09-07 | 郭玉 | Portable-type drill bit of twist drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100131 |