CN201235519Y - Helical extractor - Google Patents
Helical extractor Download PDFInfo
- Publication number
- CN201235519Y CN201235519Y CNU2007200973124U CN200720097312U CN201235519Y CN 201235519 Y CN201235519 Y CN 201235519Y CN U2007200973124 U CNU2007200973124 U CN U2007200973124U CN 200720097312 U CN200720097312 U CN 200720097312U CN 201235519 Y CN201235519 Y CN 201235519Y
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- CN
- China
- Prior art keywords
- spiral
- working head
- plum blossom
- screw extractor
- operational
- 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 - Lifetime
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Abstract
The utility model relates to a spiral extractor which comprises a cap-shaped work head with a concave core. The inner surface of the cap-shaped work head with a concave core adopts a quincuncial spiral work sloping surface, and ribs are uniformly and spirally distributed on the quincuncial spiral work sloping surface. The utility model has the advantages of simple structure, convenient production and manufacture, convenient operation and production efficiency improvement, can easily extract a rusty screw or nut or a nut or screw cap without angularity and can be matched with a manual tool and an electric tool for use.
Description
(1) technical field under:
The utility model relates to a kind of hardware ﹠ tools, particularly a kind of screw extractor of the extraction at rust dead screw, nut.
(2) background technology:
At present, the problem that in production practices or life, often have become rusty dead screw, nut or cap nut, makes it to be difficult to dismantle when nut does not have corner angle takes place, and can bring very burden to the user, and not only effort also is easy to cause the damage that is disassembled article.
(3) summary of the invention:
The purpose of this utility model is to design a kind of screw extractor, and it can make an above-mentioned difficult problem be overcome, and is a kind of practical novel hardware ﹠ tools.
The technical solution of the utility model: a kind of screw extractor, it is characterized in that it is that cap shape working head by a recessed heart constitutes, the cap shape working head inner face of the recessed heart adopts plum blossom shape spiral operational slope, on the plum blossom shape spiral operational slope of the recessed heart the equally distributed ribs of helical form is arranged.
The screw extractor that the cap shape working head of the above-mentioned said recessed heart constitutes has two kinds of non-hollow forms hollow or band and work handle link.
The cap shape working head of the above-mentioned said recessed heart can have different specifications and outward appearance according to different screws, nut size, and its outward appearance can cylindrical or polygon cylindricality.
Desirable three lobe plum blossom spiral operational slopes of the plum blossom shape spiral operational slope of recessed intracardiac employing of above-mentioned said cap shape working head or six lobe plum blossom spiral operational slopes.
The work head end outer edge of above-mentioned said cap shape has 45 ° slope angle.
Above-mentioned said screw extractor can cooperate handle or sleeve pipe to use.
Using method of the present utility model: the screw extractor that will conform with cap nut or nut size is withheld on the cap nut that is enclosed within rust dead screw, nut or do not have corner angle, the nut, the recessed heart plum blossom shape spiral operational slope of screw extractor is pressed on the cap nut or nut that must dismantle, turning handle or sleeve pipe, then the recessed heart plum blossom shape spiral operational slope of screw extractor blocks on the cap nut or nut that must dismantle, produce interactional big frictional force therebetween, the screw or the nut of being inconvenient to take off are taken off more effortlessly.
Superiority of the present utility model is: the cap nut, the nut that 1, make dead screw, the nut of rust or do not have corner angle can be extracted more effortlessly; 2, simple in structure, be convenient to manufacture; 3, easy to operate, improved production efficiency; 4, can cooperate manual and the electric tool use.
(4) description of drawings:
Accompanying drawing 1 is a kind of embodiment (with the non-hollow of handle link of working) working head surface structure schematic diagram of the related screw extractor of the utility model.
Accompanying drawing 2 is the upward view (amplification) of Fig. 1.
Accompanying drawing 3 is the working head inner concave cross-sectional view of Fig. 1.
Accompanying drawing 4 is another kind of embodiment (hollow) the working head surface structure schematic diagram of the related a kind of screw extractor of the utility model.
Accompanying drawing 5 is the side view of Fig. 4.
Accompanying drawing 6 is the working head inner concave cross-sectional view of Fig. 4.
Wherein: 1 is the cap shape working head of the recessed heart, and 1-1 is cylindrical working head, and 1-2 is a hexagonal cylindricality working head, 2 is the working handle link, 3 is the plum blossom shape spiral operational slope of the recessed heart, and 4 is the equally distributed ribs of helical form, 5 45 ° slope angle that have for work head end outer edge.
(5) specific embodiment:
Embodiment 1: a kind of screw extractor (seeing Fig. 1-3), it is characterized in that it is that cap shape working head 1-1 by a recessed heart constitutes, the cap shape working head inner face of the recessed heart adopts plum blossom shape spiral operational slope 3, on the plum blossom shape spiral operational slope 3 of the recessed heart the equally distributed ribs 4 of helical form is arranged.
The screw extractor that the cap shape working head 1-1 of the above-mentioned said recessed heart constitutes is the non-hollow form (seeing Fig. 1-3) of band and work handle link 2.
The cap shape working head 1-1 of the above-mentioned said recessed heart can have different specifications and outward appearance according to different screws, nut size, and its outward appearance can cylindrical (seeing Fig. 1-3).
The plum blossom shape spiral operational slope 3 desirable six lobe plum blossom spiral operational slope (see figure 2)s of recessed intracardiac employing of above-mentioned said cap shape working head.
Above-mentioned said screw extractor can cooperate handle to use.
Embodiment 2: a kind of screw extractor (seeing Fig. 4-6), it is characterized in that it is that cap shape working head 1-2 by a recessed heart constitutes, the cap shape working head inner face of the recessed heart adopts plum blossom shape spiral operational slope 3, on the plum blossom shape spiral operational slope 3 of the recessed heart the equally distributed ribs 4 of helical form is arranged.
The screw extractor that the cap shape working head 1-2 of the above-mentioned said recessed heart constitutes is hollow form (see figure 4).
The cap shape working head 1-2 of the above-mentioned said recessed heart can have different specifications and outward appearance according to different screws, nut size, and its outward appearance can be hexagon cylindricality (see figure 4).
The plum blossom shape spiral operational slope 3 of recessed intracardiac the employing of above-mentioned said cap shape working head 1-2 is got six lobe plum blossom spiral operational slope (see figure 4)s.
The working head 1-2 end outer edge of above-mentioned said cap shape has 45 ° slope angle 5.
Above-mentioned said screw extractor can cooperate sleeve pipe to use.
Claims (5)
1, a kind of screw extractor is characterized in that it is that cap shape working head by a recessed heart constitutes, and the cap shape working head inner face of the recessed heart adopts plum blossom shape spiral operational slope, on the plum blossom shape spiral operational slope of the recessed heart the equally distributed ribs of helical form is arranged.
2,, it is characterized in that the screw extractor of the cap shape working head formation of the said recessed heart has two kinds of non-hollow forms hollow or band and work handle link according to the said a kind of screw extractor of claim 1.
3, according to the said a kind of screw extractor of claim 1, it is characterized in that the cap shape working head of the said recessed heart can have different specifications and outward appearance according to different screws, nut size, its outward appearance can cylindrical or polygon cylindricality.
4,, it is characterized in that the desirable three lobe plum blossom spiral operational slopes of plum blossom shape spiral operational slope or the six lobe plum blossom spiral operational slopes of recessed intracardiac employing of said cap shape working head according to the said a kind of screw extractor of claim 1.
5,, it is characterized in that the work head end outer edge of said cap shape has 45 ° slope angle according to the said a kind of screw extractor of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973124U CN201235519Y (en) | 2007-08-31 | 2007-08-31 | Helical extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973124U CN201235519Y (en) | 2007-08-31 | 2007-08-31 | Helical extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235519Y true CN201235519Y (en) | 2009-05-13 |
Family
ID=40648257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200973124U Expired - Lifetime CN201235519Y (en) | 2007-08-31 | 2007-08-31 | Helical extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235519Y (en) |
-
2007
- 2007-08-31 CN CNU2007200973124U patent/CN201235519Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lu Feng Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |
|
| CX01 | Expiry of patent term |