CN101915258A - Inner pentagonal screw - Google Patents
Inner pentagonal screw Download PDFInfo
- Publication number
- CN101915258A CN101915258A CN 201010252341 CN201010252341A CN101915258A CN 101915258 A CN101915258 A CN 101915258A CN 201010252341 CN201010252341 CN 201010252341 CN 201010252341 A CN201010252341 A CN 201010252341A CN 101915258 A CN101915258 A CN 101915258A
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- CN
- China
- Prior art keywords
- screw
- spiral shell
- shell head
- screw rod
- inner pentagonal
- 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.)
- Pending
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- 239000000463 material Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 1
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Abstract
The invention discloses an inner pentagonal screw, comprising a screw head (1) and a screw rod (2), wherein the screw head (1) is provided with an inner pentagonal counter bore (3), and the screw rod (2) is perforated, along an axis, with a through hole (4) which is communicated with the counter bore (3). The inner pentagonal screw is free from slippage in the process of screwing and saves material.
Description
Technical field
The present invention relates to a kind of fastening piece, specifically is a kind of inner pentagonal screw.
Background technique
The screw of prior art comprises spiral shell head and screw rod, and it is hexagonal counterbore that described spiral shell head is provided with cross section, promptly interior hexagonal counterbore, and described screw rod is a solid screw.
There is following defective in the screw of prior art: at first, be interior hexagonal counterbore owing to what establish on the spiral shell head, in actual use, when screwing this screw with hexagon wrench, often skid easily; Secondly, because screw rod is solid, relatively take material, cost is than higher.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of non-slip and save the inner pentagonal screw of material in screwing the process of this screw.
Technical solution of the present invention is, a kind of inner pentagonal screw with following structure is provided, and it comprises spiral shell head and screw rod, and described spiral shell head is provided with interior five jiaos counterbore, and described screw rod is through with through hole along axis, and described through hole is communicated with counterbore.
After adopting above structure, inner pentagonal screw of the present invention compared with prior art has the following advantages:
Because the counterbore on this spiral shell head is interior five jiaos, according to general knowledge as can be known, many more easy more the skidding of polygonal seamed edge are that circle is the easiest as the infinite many limit polygonals of seamed edge in the polygonal skids, so the screw of interior five jiaos of counterbores screws, more is difficult for skidding than interior hexagonal counterbore screw is more convenient; And because screw rod is through with through hole along axis, obviously, cored screw is than solid screw material saving more, and cost is lower.
Description of drawings
Fig. 1 be inner pentagonal screw of the present invention a kind of embodiment face structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the right elevation of Fig. 1.
Fig. 4 is a kind of embodiment's of an inner pentagonal screw of the present invention sectional structure schematic representation.
Fig. 5 be inner pentagonal screw of the present invention another kind of embodiment face structural representation.
Fig. 6 is the left view of Fig. 5.
Fig. 7 is the right elevation of Fig. 5.
Fig. 8 is the another kind of embodiment's of an inner pentagonal screw of the present invention sectional structure schematic representation.
Fig. 9 be inner pentagonal screw of the present invention another embodiment face structural representation.
Figure 10 is the left view of Fig. 9.
Figure 11 is the right elevation of Fig. 9.
Figure 12 is another embodiment's of an inner pentagonal screw of the present invention sectional structure schematic representation.
Shown in the figure
1, spiral shell head, 2, screw rod, 3, counterbore, 4, through hole, 5, locking tooth, 6, flange plate.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of embodiment of inner pentagonal screw of the present invention, it comprises spiral shell head 1 and screw rod 2, described spiral shell head 1 is circle spiral shell head 1, described spiral shell head 1 is provided with interior five jiaos counterbore 3, described screw rod 2 is a thread section entirely, and described screw rod 2 is through with through hole 4 along axis, and described through hole 4 is communicated with counterbore 3.
As Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, the another kind of embodiment of inner pentagonal screw of the present invention, it comprises spiral shell head 1 and screw rod 2, described spiral shell head 1 is five jiaos of spiral shell heads 1, promptly the cross section of this spiral shell head 1 is a pentagon, and described spiral shell head 1 is provided with interior five jiaos of counterbores 3, and described screw rod 2 is a thread section entirely, described screw rod 2 is through with through hole 4 along axis, and described through hole 4 is communicated with counterbore 3.
As Fig. 9, Figure 10, Figure 11, shown in Figure 12, another embodiment of inner pentagonal screw of the present invention, it comprises spiral shell head 1 and screw rod 2, described spiral shell head 1 is circle spiral shell head 1, described spiral shell head 1 is provided with interior five jiaos of counterbores 3, be provided with flange plate 6 between described spiral shell head 1 and the screw rod 2, described flange plate 6 is provided with some the radial locking teeth 5 that radially extend away from the end face of spiral shell head 1, described screw rod 2 is a thread section entirely, described screw rod 2 is through with through hole 4 along axis, and described through hole 4 is communicated with counterbore 3.
Claims (1)
1. inner pentagonal screw, it comprises spiral shell head (1) and screw rod (2), it is characterized in that: described spiral shell head (1) is provided with interior five jiaos counterbore (3), and described screw rod (2) is through with through hole (4) along axis, and described through hole (4) is communicated with counterbore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252341 CN101915258A (en) | 2010-08-09 | 2010-08-09 | Inner pentagonal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010252341 CN101915258A (en) | 2010-08-09 | 2010-08-09 | Inner pentagonal screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101915258A true CN101915258A (en) | 2010-12-15 |
Family
ID=43322848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010252341 Pending CN101915258A (en) | 2010-08-09 | 2010-08-09 | Inner pentagonal screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115052A (en) * | 2013-02-21 | 2013-05-22 | 哈尔滨工业大学 | Cored screw incapable of plugging screw hole after breakage |
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000018230A (en) * | 1998-04-30 | 2000-01-18 | Japan Bridge Corp | Fastening device |
| CN2849295Y (en) * | 2005-11-14 | 2006-12-20 | 张家祥 | Antitheft assembly of screw |
| CN201121633Y (en) * | 2007-08-24 | 2008-09-24 | 宁波东港紧固件制造有限公司 | Combined screw |
| CN201531505U (en) * | 2009-07-16 | 2010-07-21 | 魏荣华 | Special theftproof thread fastening piece |
-
2010
- 2010-08-09 CN CN 201010252341 patent/CN101915258A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000018230A (en) * | 1998-04-30 | 2000-01-18 | Japan Bridge Corp | Fastening device |
| CN2849295Y (en) * | 2005-11-14 | 2006-12-20 | 张家祥 | Antitheft assembly of screw |
| CN201121633Y (en) * | 2007-08-24 | 2008-09-24 | 宁波东港紧固件制造有限公司 | Combined screw |
| CN201531505U (en) * | 2009-07-16 | 2010-07-21 | 魏荣华 | Special theftproof thread fastening piece |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115052A (en) * | 2013-02-21 | 2013-05-22 | 哈尔滨工业大学 | Cored screw incapable of plugging screw hole after breakage |
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |