CN2587610Y - Three-tip woodwork drill - Google Patents
Three-tip woodwork drill Download PDFInfo
- Publication number
- CN2587610Y CN2587610Y CN 02294884 CN02294884U CN2587610Y CN 2587610 Y CN2587610 Y CN 2587610Y CN 02294884 CN02294884 CN 02294884 CN 02294884 U CN02294884 U CN 02294884U CN 2587610 Y CN2587610 Y CN 2587610Y
- Authority
- CN
- China
- Prior art keywords
- auger
- carpenter
- tricuspid
- shank
- drillstock
- 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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- Drilling Tools (AREA)
Abstract
The utility model relates to a three-tip carpenter's auger which is connected into one body by an auger bit and an auger shank. The bit body of the auger bit is a spiral edge part, and the end part of the auger bit is provided with three sharp ends. The auger shank is a cylindrical straight shank and the holding position of the auger shank is provided with a horn of which the cross section is a regular hexagon or a regular six small circular arc. The horn is provided with a concave annular groove used for locking and positioning, the cross section of the concave annular groove is a circle and the longitudinal section of the concave annular groove is cambered. A lead angle exists between the auger bit and the rod-shaped auger shank. The diameter of the auger shank can be greater than or equal to or smaller than the size of the distance of the opposite edges of the hexagon of the horn. The utility model solves the technical problem that a three-tip carpenter's auger and an electric drill or an electric hammer drill chuck appliance have installation inconvenience and cause the abrasion of the shank part of a drill bit or the fact that the drill bit is clamped in a drill chuck because of easy slip during drilling holes. When the three-tip carpenter's auger is used with the matched chucking appliance, the three-tip carpenter's auger can be loaded and unloaded simply and conveniently. As long as the auger shank of the three-tip carpenter's auger is pushed or pulled towards a hole of the chucking appliance, loading and unloading can be completed without the need that a drilling machine is debugged and moved. The utility model can be used for hand-held electric drills or electric bench drills or the rotary cutting tools of electric hammer drills.
Description
Technical field
The utility model relates to a kind of rotary-cut cutlery, particularly a kind of carpenter.
Background technology
In carpenter's materials processing, the tricuspid carpenter that is used to hole is hand-held with connecting, the rotary-cut cutlery of electric bench drill or electric hammer brill, existing tricuspid carpenter is fused by drill bit and shaft-like drillstock, the bit body of its drill bit is a spirality blade, there are three tips the end of drill bit, and the retaining part of its drillstock is cylindrical staight shank, and drillstock inserts in the centre bore of electric drill or electric hammer drill chuck tool, need by the special spanner installation, comparatively trouble seems.While because jig to the grip deficiency of circular surface, skids easily, is caused drill handle part wearing and tearing or the phenomenon of drill chuck in drill point when boring when boring.
Technology contents
The utility model solves tricuspid carpenter and electric drill or electric hammer drill chuck tool and inconvenience is installed, skids easily when boring, causes drill handle part wearing and tearing or the technical problem of drill chuck in drill point.
The technical scheme of the utility model tricuspid carpenter: fuse by drill bit and drillstock, the bit body of its drill bit is a spirality blade, there are three tips the end of drill bit, its drillstock is cylindrical staight shank, it is characterized in that: it is the bone knob of regular hexagon or positive six little circular arcs that the retaining part of drillstock has one section cross section, is provided with the spill annular groove that a lock in place is used on bone knob.
The cross section of above-mentioned spill annular groove is circular, and the longitudinal section is an arc.
The curved inner radius of above-mentioned spill annular groove is Φ 4.50-6 (mm), and the arc radius scope is 3-6mm.
Between above-mentioned drill bit and the shaft-like drillstock lead angle is arranged.
The total length scope of above-mentioned spirality blade and shank is 60mm-100mm.
Above-mentioned spirality blade length range is 28mm-65mm, and its diameter is Φ 2.9mm to Φ 11mm.
Above-mentioned drillstock diameter is Φ 2.5mm to Φ 11mm.
Above-mentioned drillstock diameter greater than, be equal to or less than bone knob hexagon opposite side distance from size.
Above-mentioned bone knob length is 24mm to 27mm, and the hexagon opposite side distance is from being of a size of 6.30-6.50mm.
Beneficial effect: the tricuspid carpenter of this utility model and electric drill or electric hammer drill chuck tool clamping firm stable, difficult loosening, and easy accessibility.Tricuspid carpenter head is used to rotate all kinds of carpenter's materials of quick incision; Spirality portion is used to discharge building materials or stone material is broken cuts; The circle handle is for supporting penetraction depth, and the round handle design of different length can adapt to the requirement of different drilling depths; Its distinctive regular hexagon of bone knob or positive six roundlet arc handle cage structures can effectively stop tricuspid carpenter drillstock to relatively rotate in jig.After scrobicular ring on its handle makes it snap in the jig, by the elasticity clamping device on the jig, can avoid the tricuspid carpenter loosening even come off in addition in jig effectively, when the jig that this novel tricuspid carpenter matches with it uses, loading and unloading are especially simply saved trouble, only need tricuspid carpenter drillstock is pushed away or one draws to the Kong Zhongyi of jig, can finish, transfer rig and need not debugging.Can be used for handing, the rotary-cut cutlery of electric bench drill or electric hammer brill.
Description of drawings
Fig. 1 is the structural representation of the utility model example I, the drillstock diameter greater than bone knob hexagon opposite side distance from size;
Fig. 2 is the structural representation of the utility model example II, and the drillstock diameter equals bone knob hexagon opposite side distance from size;
Fig. 3 is the structural representation of the utility model EXAMPLE III, the drillstock diameter less than bone knob hexagon opposite side distance from size.
The specific embodiment
The tricuspid carpenter processes with high-speed steel, carbon steel metal rod, fuse by drill bit and drillstock 1, the bit body of its drill bit is a spirality blade 2, there are three tips 3 end of drill bit, its drillstock 1 is cylindrical staight shank, it is the bone knob 4 of regular hexagon or positive six little circular arcs that the retaining part of its drillstock has one section cross section, is provided with the spill annular groove 5 that a lock in place is used on bone knob.Between above-mentioned drill bit and the shaft-like drillstock lead angle 6 can be arranged.The drillstock diameter can greater than, be equal to or less than bone knob hexagon opposite side distance from size.Shown in example I, II, III among Fig. 1,2,3.The cross section of spill annular groove is circular, and the longitudinal section is an arc, and curved inner radius is Φ 4.50-6 (mm), and the arc radius scope is 3-6mm.The total length scope of spirality blade and shank is 60mm-100mm.Spirality blade length range is 28mm-65mm, and its diameter is Φ 2.9mm-11mm.The drillstock diameter is Φ 2.5mm-11mm.Bone knob length is 24mm-27mm, and the hexagon opposite side distance is from being of a size of 6.30-6.50mm.
Claims (9)
1, a kind of tricuspid carpenter, fuse by drill bit and drillstock, the bit body of its drill bit is a spirality blade, there are three tips the end of drill bit, its drillstock is cylindrical staight shank, it is characterized in that: it is the bone knob of regular hexagon or positive six little circular arcs that the retaining part of drillstock has one section cross section, is provided with the spill annular groove that a lock in place is used on bone knob.
2, tricuspid carpenter according to claim 1 is characterized in that: the cross section of described spill annular groove is for circular, and the longitudinal section is an arc.
3, tricuspid carpenter according to claim 2 is characterized in that: the curved inner radius of described spill annular groove is Φ 4.50-6 (mm), and the arc radius scope is 3-6mm.
4, tricuspid carpenter according to claim 1 is characterized in that: between described drill bit and the shaft-like drillstock lead angle is arranged.
5, tricuspid carpenter according to claim 1 is characterized in that: the total length scope of described spirality blade and drillstock is 60mm-100mm.
6, tricuspid carpenter according to claim 1 is characterized in that: described spirality blade length range is 28mm-65mm, and its diameter is Φ 2.9mm to Φ 11mm.
7, tricuspid carpenter according to claim 1 is characterized in that: described drillstock diameter is Φ 2.5mm to Φ 11mm.
8, according to claim 1 or 7 described tricuspid carpenters, it is characterized in that: described drillstock diameter greater than, be equal to or less than bone knob hexagon opposite side distance from size.
9, tricuspid carpenter according to claim 8 is characterized in that: described bone knob length is 24mm to 27mm, and the hexagon opposite side distance is from being of a size of 6.30-6.50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02294884 CN2587610Y (en) | 2002-12-30 | 2002-12-30 | Three-tip woodwork drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02294884 CN2587610Y (en) | 2002-12-30 | 2002-12-30 | Three-tip woodwork drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2587610Y true CN2587610Y (en) | 2003-11-26 |
Family
ID=33752174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02294884 Expired - Fee Related CN2587610Y (en) | 2002-12-30 | 2002-12-30 | Three-tip woodwork drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2587610Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328388A (en) * | 2019-07-31 | 2019-10-15 | 上海建桥学院 | It is a kind of for processing the drill bit of low profile flexible material |
-
2002
- 2002-12-30 CN CN 02294884 patent/CN2587610Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328388A (en) * | 2019-07-31 | 2019-10-15 | 上海建桥学院 | It is a kind of for processing the drill bit of low profile flexible material |
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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 |