CN203993778U - A kind of convenient instrument that takes out downright bad screw - Google Patents
A kind of convenient instrument that takes out downright bad screw Download PDFInfo
- Publication number
- CN203993778U CN203993778U CN201420466498.6U CN201420466498U CN203993778U CN 203993778 U CN203993778 U CN 203993778U CN 201420466498 U CN201420466498 U CN 201420466498U CN 203993778 U CN203993778 U CN 203993778U
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- Prior art keywords
- instrument
- downright bad
- extraction portion
- ragged edge
- takes out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/18—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same withdrawing broken threaded parts or twist drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to mechanical field, is a kind of convenient instrument that takes out downright bad screw, and the design with holes of this instrument top also can conveniently be taken out for safety screw, plain screw; It is rod-like element, and it comprises the extraction portion that is arranged at top, and this extraction portion is: extend to tool focus axle towards instrument top-direction, its ragged edge is around the gradually little projection of tool focus solid of revolution that axle becomes; On ragged edge, be evenly equipped with screw thread cutting edge; The purpose of this utility model is to provide a kind of instrument that can take out downright bad screw without punching on downright bad screw.
Description
technical field
The utility model relates to mechanical field, is a kind of convenient instrument that takes out downright bad screw, special in downright bad safety screw.
Background technology
When screw screws in behind installation site, the texture of its head is destroyed, while making instrument contact need to rotate thereafter, have stripped thread phenomenon, cause screw to take out, formed downright bad screw, the method of taking out at present downright bad screw is both at home and abroad all first first to punch at downright bad screw head drill bit, and then use tapered thread taking-up instrument to insert in the aperture getting out in advance before, finally with spanner reverse rotation tapered thread extractor, downright bad screw is taken out, when this screw extractor work, except electric drill, also need drill bit, spanner is auxiliary could take out downright bad bolt or screw, take time and effort,
For the screw with safeguard protection of necrosis, common tapered thread taking-up instrument is difficult for punching, and taking out can be more difficult.
Utility model content
The purpose of this utility model is to overcome existing above-mentioned deficiency in prior art, and a kind of instrument that can take out downright bad screw without punching on downright bad screw is provided.
In order to realize above-mentioned utility model object, the utility model provides following technical scheme:
A kind of convenient instrument that takes out downright bad screw, it is rod-like element, it comprises the extraction portion that is arranged at top, and this extraction portion is: extend to described tool focus axle towards instrument top-direction, its ragged edge is around the gradually little projection of described tool focus solid of revolution that axle becomes;
On described ragged edge, be evenly equipped with screw thread cutting edge.
The technical solution of the utility model in use, the head of the downright bad screw of the top alignment of described instrument, high pulling torque rotation at a slow speed, can make described screw thread cutting edge embed or block the head of described downright bad screw, drive downright bad screw rotation, and screw out along the screw thread of himself, without punching on downright bad screw, simple and fast.
As preferred version of the present utility model, described extraction portion tip has the hole coaxial with described tool focus axle, safety screw is in order to ensure safety, its head is provided with rod member and prevents stretching into of amateur instrument, the hole that the utility model is opened can make described rod member insert in it, can the course of work of the utility model instrument not formed and be hindered, realize the convenient of safety screw taken out.
As preferred version of the present utility model, described screw thread cutting edge quantity is equal to or greater than 2 rows, is separately positioned on the both sides of described tool focus axle, makes instrument do the used time to the end rotation of downright bad screw, evenly forms active force.
As preferred version of the present utility model, described screw thread cutting edge quantity equals 2 rows, described ragged edge quantity is 2, described extraction portion both sides are hollowed out, its overlook profile be 2 symmetrical fan-shaped, fan-shaped arc-shaped side outwardly, described ragged edge is separately positioned on described 2 fan-shaped straight lines, described extraction portion is after described tool focus axle Rotate 180 °, 2 mutual reversing of position of described ragged edge, on the groove at safety screw top, be provided with outside annular groove, what described instrument was such be symmetrical arranged mode can be better to safety screw formation effect.
As preferred version of the present utility model, described instrument is column, described extraction portion is processed by its top, it comprises periphery, the periphery of this periphery and described instrument is coaxial or overlap, the length that the distance at its highest point and described extraction portion tip is described ragged edge, safety screw different specification again, so instrument of the present utility model also has different specifications, owing to being directly processing in column, so can first extraction portion car be become to a cylindrical projection according to size, then directly carry out lower order processing.
As preferred version of the present utility model, described 2 fan-shaped straight lines except described ragged edge are comprised around described tool focus rotary body that axle becomes by described ragged edge around described tool focus rotary body that axle becomes, while preventing work, except the screw thread cutting edge of described ragged edge contacts with downright bad screw, other parts contact with downright bad screw again, can reduce resistance, reduce again the probability of stripped thread.
As preferred version of the present utility model, described extraction portion both sides are by cut-out, the adjacent perpendicular that is provided with below described ragged edge, described instrument is down in the time that described tool focus axle is rotated counterclockwise, described perpendicular is windward side, most of screw is clockwise screw-in, so need to screw out counterclockwise, this scheme can better adapt to described this situation.
As preferred version of the present utility model, described 2 ragged edge angulations comprise 82 °, 114 °, 135 °, adapt to the size of the described annular groove of common several safety screw heads.
As preferred version of the present utility model, described instrument bottom, for band R groove six side's quick change handles, can be used for hand-held tool and portable power tool, even also can be easy to use in the narrow place of working space.
As preferred version of the present utility model, the hole that open at described extraction portion tip is circular hole, and the rod member in the middle of most of safety screw is cylindrical, and this scheme can better adapt to columniform rod member.
compared with prior art, the beneficial effects of the utility model:
In use, the head of the downright bad screw of the top alignment of described instrument, high pulling torque rotation at a slow speed, can make described screw thread cutting edge embed or block the head of described downright bad screw, drive downright bad screw rotation, and screw out along the screw thread of himself, without punching on downright bad screw, simple and fast.
brief description of the drawings:
Fig. 1 is the utility model the first structural representation.
Fig. 2 is the utility model the second structural representation.
Fig. 3 is the utility model the 3rd structural representation.
Fig. 4 is the utility model the 4th structural representation.
Fig. 5 is the utility model the 5th structural representation.
Fig. 6 is the first structural representation of safety screw described in the utility model.
Fig. 7 is the second structural representation of safety screw described in the utility model.
Fig. 8 is the first side view of 82 ° of the utility model two ragged edge angles.
Fig. 9 is the second side view of 82 ° of the utility model two ragged edge angles.
Figure 10 is the 3rd side view of 82 ° of the utility model two ragged edge angles.
Figure 11 is the 4th side view of 82 ° of the utility model two ragged edge angles.
Figure 12 is the 5th side view of 82 ° of the utility model two ragged edge angles.
Figure 13 is the first side view of 114 ° of the utility model two ragged edge angles.
Figure 14 is the second side view of 114 ° of the utility model two ragged edge angles.
Figure 15 is the 3rd side view of 114 ° of the utility model two ragged edge angles.
Figure 16 is the 4th side view of 114 ° of the utility model two ragged edge angles.
Figure 17 is the 5th side view of 114 ° of the utility model two ragged edge angles.
Figure 18 is the first side view of 135 ° of the utility model two ragged edge angles.
Figure 19 is the second side view of 135 ° of the utility model two ragged edge angles.
Figure 20 is the 3rd side view of 135 ° of the utility model two ragged edge angles.
Figure 21 is the 4th side view of 135 ° of the utility model two ragged edge angles.
Figure 22 is the 5th side view of 135 ° of the utility model two ragged edge angles.
Mark in figure: 1-ragged edge, 2-screw thread cutting edge, 3-extraction portion, 4-six side's quick change handles, 5-hole, 6-annular groove, 7-cylindrical protrusions.
Detailed description of the invention
Below in conjunction with embodiment and detailed description of the invention, the utility model is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the utility model only limits to following embodiment, all technology realizing based on the utility model content all belong to scope of the present utility model.
embodiment 1
As Fig. 1, a convenient instrument that takes out downright bad screw, it is high-speed steel rod-like element, it comprises the extraction portion 3 that is arranged at top, this extraction portion 3 is: extend to described tool focus axle towards instrument top-direction, its ragged edge 1 is around the gradually little projection of described tool focus solid of revolution that axle becomes;
On described ragged edge 1, be evenly equipped with screw thread cutting edge 2.
In the present embodiment, described extraction portion 3 tips have the hole 5 coaxial with described tool focus axle, this hole 5 is circular hole, described screw thread cutting edge 2 quantity equal 2 rows, be separately positioned on the both sides of described tool focus axle, described ragged edge 1 quantity is 2, described extraction portion 3 both sides are hollowed out, its overlook profile be 2 symmetrical fan-shaped, fan-shaped arc-shaped side outwardly, described ragged edge 1 is separately positioned on described 2 fan-shaped straight lines, described extraction portion 3 after described tool focus axle Rotate 180 °, 2 mutual reversing of position of described ragged edge 1;
Described extraction portion 3 both sides are by cut-out, the adjacent perpendicular that is provided with below described ragged edge 1, and described instrument is down in the time that described tool focus axle is rotated counterclockwise, and described perpendicular is windward side.
In the present embodiment, described instrument is column, described extraction portion 3 is processed by its top, it comprises periphery, the periphery of this periphery and described instrument is coaxial or overlap, and the distance at its highest point and described extraction portion 3 tips is the length of described ragged edge 1, and the periphery diameter of described extraction portion 3 has 4.8mm, 5.1mm, 7mm, 8.1mm, 10.1mm, varying in size of the corresponding extraction portion 3 of each size, as Fig. 1-5.
In the present embodiment, described 2 fan-shaped straight lines except described ragged edge 1 are comprised around described tool focus rotary body that axle becomes by described ragged edge 1 around described tool focus rotary body that axle becomes.
Described 2 ragged edge 1 angulations are 82 °, are applicable to the above bevel angle of screw head inner groovy and are the safety screw of 49 °, as Fig. 8-12.
Described instrument bottom is band R groove six side's quick change handles 4.
embodiment 2
As Fig. 1, a convenient instrument that takes out downright bad screw, it is high-speed steel rod-like element, it comprises the extraction portion 3 that is arranged at top, this extraction portion 3 is: extend to described tool focus axle towards instrument top-direction, its ragged edge 1 is around the gradually little projection of described tool focus solid of revolution that axle becomes;
On described ragged edge 1, be evenly equipped with screw thread cutting edge 2.
In the present embodiment, described extraction portion 3 tips have the hole 5 coaxial with described tool focus axle, this hole 5 is circular hole, described screw thread cutting edge 2 quantity equal 2 rows, be separately positioned on the both sides of described tool focus axle, described ragged edge 1 quantity is 2, described extraction portion 3 both sides are hollowed out, its overlook profile be 2 symmetrical fan-shaped, fan-shaped arc-shaped side outwardly, described ragged edge 1 is separately positioned on described 2 fan-shaped straight lines, described extraction portion 3 after described tool focus axle Rotate 180 °, 2 mutual reversing of position of described ragged edge 1;
Described extraction portion 3 both sides are by cut-out, the adjacent perpendicular that is provided with below described ragged edge 1, and described instrument is down in the time that described tool focus axle is rotated counterclockwise, and described perpendicular is windward side.
In the present embodiment, described instrument is column, described extraction portion 3 is processed by its top, it comprises periphery, the periphery of this periphery and described instrument is coaxial or overlap, and the distance at its highest point and described extraction portion 3 tips is the length of described ragged edge 1, and the periphery diameter of described extraction portion 3 has 4.8mm, 5.1mm, 7mm, 8.1mm, 10.1mm, varying in size of the corresponding extraction portion 3 of each size, as Fig. 1-5.
In the present embodiment, described 2 fan-shaped straight lines except described ragged edge 1 are comprised around described tool focus rotary body that axle becomes by described ragged edge 1 around described tool focus rotary body that axle becomes.
Described 2 ragged edge 1 angulations are 114 °, are applicable to the above bevel angle of screw head inner groovy and are the safety screw of 33 °, as Figure 13-17.
Described instrument bottom is band R groove six side's quick change handles 4.
embodiment 3
As Fig. 1, a convenient instrument that takes out downright bad screw, it is high-speed steel rod-like element, it comprises the extraction portion 3 that is arranged at top, this extraction portion 3 is: extend to described tool focus axle towards instrument top-direction, its ragged edge 1 is around the gradually little projection of described tool focus solid of revolution that axle becomes;
On described ragged edge 1, be evenly equipped with screw thread cutting edge 2.
In the present embodiment, described extraction portion 3 tips have the hole 5 coaxial with described tool focus axle, this hole 5 is circular hole, described screw thread cutting edge 2 quantity equal 2 rows, be separately positioned on the both sides of described tool focus axle, described ragged edge 1 quantity is 2, described extraction portion 3 both sides are hollowed out, its overlook profile be 2 symmetrical fan-shaped, fan-shaped arc-shaped side outwardly, described ragged edge 1 is separately positioned on described 2 fan-shaped straight lines, described extraction portion 3 after described tool focus axle Rotate 180 °, 2 mutual reversing of position of described ragged edge 1;
Described extraction portion 3 both sides are by cut-out, the adjacent perpendicular that is provided with below described ragged edge 1, and described instrument is down in the time that described tool focus axle is rotated counterclockwise, and described perpendicular is windward side.
In the present embodiment, described instrument is column, described extraction portion 3 is processed by its top, it comprises periphery, the periphery of this periphery and described instrument is coaxial or overlap, and the distance at its highest point and described extraction portion 3 tips is the length of described ragged edge 1, and the periphery diameter of described extraction portion 3 has 4.8mm, 5.1mm, 7mm, 8.1mm, 10.1mm, varying in size of the corresponding extraction portion 3 of each size, as Fig. 1-5.
In the present embodiment, described 2 fan-shaped straight lines except described ragged edge 1 are comprised around described tool focus rotary body that axle becomes by described ragged edge 1 around described tool focus rotary body that axle becomes.
Described 2 ragged edge 1 angulations are 135 °, are applicable to the above bevel angle of screw head inner groovy and are the safety screw of 22.5 °, as Figure 18-22.
Described instrument bottom is band R groove six side's quick change handles 4.
By embodiment 1, 2, the convenient instrument that takes out downright bad screw described in 3 is in the time of effect safety screw, what match is as Fig. 6, 7 safety screw, its head is provided with the groove of plum blossom-shaped, center is provided with cylindrical protrusions 7, the groove top of quincuncial pile is divided into outside annular groove 6, when described tool work, aim at the cylindrical protrusions 7 on described safety screw with the hole 5 at extraction portion 3 tips, remove the security function of safety screw, and realize behind location, low-speed big is rotated counterclockwise, described screw thread cutting edge 2 embeds or blocks the groove of plum blossom-shaped, drive downright bad screw to be rotated counterclockwise, screw thread along downright bad screw self exits, realize the taking-up of downright bad screw, convenient and swift, without punching on downright bad screw.
Claims (10)
1. a convenient instrument that takes out downright bad screw, it is rod-like element, it comprises the extraction portion that is arranged at top, and this extraction portion is: extend to described tool focus axle towards instrument top-direction, its ragged edge is around the gradually little projection of described tool focus solid of revolution that axle becomes;
On described ragged edge, be evenly equipped with screw thread cutting edge.
2. a kind of convenient instrument that takes out downright bad screw according to claim 1, is characterized in that, described extraction portion tip has the hole coaxial with described tool focus axle.
3. a kind of convenient instrument that takes out downright bad screw according to claim 2, is characterized in that, described screw thread cutting edge quantity is equal to or greater than 2 rows, is separately positioned on the both sides of described tool focus axle.
4. a kind of convenient instrument that takes out downright bad screw according to claim 3, it is characterized in that, described screw thread cutting edge quantity equals 2 rows, described ragged edge quantity is 2, and described extraction portion both sides are hollowed out, its overlook profile be 2 symmetrical fan-shaped, fan-shaped arc-shaped side outwardly, described ragged edge is separately positioned on described 2 fan-shaped straight lines, described extraction portion after described tool focus axle Rotate 180 °, 2 mutual reversing of position of described ragged edge.
5. a kind of convenient instrument that takes out downright bad screw according to claim 4, it is characterized in that, described instrument is column, described extraction portion is processed by its top, it comprises periphery, the periphery of this periphery and described instrument is coaxial or overlap, the length that the distance at its highest point and described extraction portion tip is described ragged edge.
6. a kind of convenient instrument that takes out downright bad screw according to claim 5, it is characterized in that, described 2 fan-shaped straight lines except described ragged edge are comprised around described tool focus rotary body that axle becomes by described ragged edge around described tool focus rotary body that axle becomes.
7. a kind of convenient instrument that takes out downright bad screw according to claim 6, it is characterized in that, described extraction portion both sides are by cut-out, the adjacent perpendicular that is provided with below described ragged edge, described instrument is down in the time that described tool focus axle is rotated counterclockwise, and described perpendicular is windward side.
8. a kind of convenient instrument that takes out downright bad screw according to claim 7, is characterized in that, described 2 ragged edge angulations comprise 82 °, 114 °, 135 °.
9. a kind of convenient instrument that takes out downright bad screw according to claim 8, is characterized in that, described instrument bottom is band R groove six side's quick change handles.
10. a kind of convenient instrument that takes out downright bad screw according to claim 9, is characterized in that, the hole that open at described extraction portion tip is circular hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466498.6U CN203993778U (en) | 2014-08-18 | 2014-08-18 | A kind of convenient instrument that takes out downright bad screw |
| PCT/CN2014/086267 WO2016026184A1 (en) | 2014-08-18 | 2014-09-11 | Tool facilitating take-out of damaged screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466498.6U CN203993778U (en) | 2014-08-18 | 2014-08-18 | A kind of convenient instrument that takes out downright bad screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203993778U true CN203993778U (en) | 2014-12-10 |
Family
ID=52033841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420466498.6U Active CN203993778U (en) | 2014-08-18 | 2014-08-18 | A kind of convenient instrument that takes out downright bad screw |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203993778U (en) |
| WO (1) | WO2016026184A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6595730B2 (en) * | 2000-03-06 | 2003-07-22 | Alden Corporation | Bit for removing damaged screws |
| TWI283615B (en) * | 2004-09-10 | 2007-07-11 | Jei Mou Ind Co Ltd | Awl structure |
| CN201036864Y (en) * | 2007-03-26 | 2008-03-19 | 邹素莲 | Damaged screw taking out device |
| JP2014100742A (en) * | 2012-11-16 | 2014-06-05 | Kaneko Seisakusho:Kk | Bit for removing screw |
| CN103406877A (en) * | 2013-08-27 | 2013-11-27 | 丹阳市飞鹰工具有限公司 | High-strength screw extractor |
-
2014
- 2014-08-18 CN CN201420466498.6U patent/CN203993778U/en active Active
- 2014-09-11 WO PCT/CN2014/086267 patent/WO2016026184A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016026184A1 (en) | 2016-02-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |