CN2226992Y - Twist straight-shank drill with easy gripping and anti-skid - Google Patents
Twist straight-shank drill with easy gripping and anti-skid Download PDFInfo
- Publication number
- CN2226992Y CN2226992Y CN 95219790 CN95219790U CN2226992Y CN 2226992 Y CN2226992 Y CN 2226992Y CN 95219790 CN95219790 CN 95219790 CN 95219790 U CN95219790 U CN 95219790U CN 2226992 Y CN2226992 Y CN 2226992Y
- Authority
- CN
- China
- Prior art keywords
- drill
- straight handle
- prism
- shank
- utility
- 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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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a twist straight handle drill head with easy clamping and sliding prevention. The utility model is characterized in that a straight handle is short; the upper part of the straight handle forms a triangular prism shape; each prism corner of the triangular prism forms a circular arc shape; a prism surface is a plane surface or a concave arc surface; the arc surface of the prism corner or the arc surface of the straight handle is punched with marks. The utility model has the advantages of easy clamping, no sliding, convenient operation, long service lives of the straight handle of the drill head and three claws of a drill chuck, light weight and steel material saving, and is an ideal twist straight handle drill head.
Description
The utility model relates to the fried dough twist straight shank drill, is the anti-skidding straight shank drill of a kind of easy clamping.
At present, the straight shank drill of selling on the market, all be to continue to use the old pattern in ground the pre-peaceful liberation period always, be difficult for folder in use, usually will firmly twist with key, sometimes also to strike tightly with hammer, use inconvenience, skidding in use also usually appears in even now, both influenced work, drill bit staight shank and drill chuck head three-jaw are easy to wear, the life-span short.
The purpose of this utility model provides the anti-skidding fried dough twist straight shank drill of a kind of easy clamping, is difficult for clamping to solve existing fried dough twist straight shank drill, usually occurs skidding, and uses inconvenient drill bit and staight shank, drill chuck head three-jaw easy to wear, short problem of life-span.
The purpose of this utility model be achieved in that will existing fried dough twist straight shank drill staight shank be divided into two sections of staight shank and tri-prisms, staight shank is short, and the angle of tri-prism is a circular arc, and its stupefied face is plane or spill cambered surface, hexagonal angle is uniform, is being equipped with mark on the angle cambered surface or on the staight shank cambered surface.
This utility model compared with prior art has the following advantages: 1) tri-prism shape easily clamp, non-slip, easy to use; 2) fried dough twist straight shank drill and drill chuck head three-jaw life-span are long; 3) the relaxed steel of weight.
Be described further below in conjunction with accompanying drawing:
Fig. 1: easily clamp anti-skidding fried dough twist straight shank drill structural representation
Among the figure: drill bit (1) is identical with existing drill bit, staight shank (2) contraction in length, its top is tri-prism shape, the angle of tri-prism (4) is circular arc and the same diameter of staight shank (2), stupefied (3) of tri-prism are plane or concave panel, hexagonal angle is uniform, and its length is slightly larger than drill chuck head three-jaw length, and this design is applicable to the fried dough twist straight shank drill of φ 3～13mm.
Claims (2)
1, the anti-skidding fried dough twist straight shank drill of a kind of easy clamping is made up of drill bit (1) and staight shank (2), it is characterized in that: staight shank (2) is short, its top is tri-prism shape, the angle of tri-prism (4) is a circular arc, its stupefied (3) are plane or spill cambered surface, hexagonal angle is uniform, is being equipped with mark on the angle cambered surface or on the staight shank cambered surface.
2, fried dough twist straight shank drill according to claim 1 is characterized in that: bit diameter is φ 3～13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219790 CN2226992Y (en) | 1995-08-19 | 1995-08-19 | Twist straight-shank drill with easy gripping and anti-skid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219790 CN2226992Y (en) | 1995-08-19 | 1995-08-19 | Twist straight-shank drill with easy gripping and anti-skid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2226992Y true CN2226992Y (en) | 1996-05-15 |
Family
ID=33867878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219790 Expired - Fee Related CN2226992Y (en) | 1995-08-19 | 1995-08-19 | Twist straight-shank drill with easy gripping and anti-skid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2226992Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286355A (en) * | 2013-06-18 | 2013-09-11 | 李国军 | Drill with prismatic handle |
| CN105345099A (en) * | 2015-11-06 | 2016-02-24 | 黄俊柳 | Drill bit capable of preventing slipping |
-
1995
- 1995-08-19 CN CN 95219790 patent/CN2226992Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286355A (en) * | 2013-06-18 | 2013-09-11 | 李国军 | Drill with prismatic handle |
| CN105345099A (en) * | 2015-11-06 | 2016-02-24 | 黄俊柳 | Drill bit capable of preventing slipping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |