CN103133486A - Screw with barb structure - Google Patents
Screw with barb structure Download PDFInfo
- Publication number
- CN103133486A CN103133486A CN2011103880211A CN201110388021A CN103133486A CN 103133486 A CN103133486 A CN 103133486A CN 2011103880211 A CN2011103880211 A CN 2011103880211A CN 201110388021 A CN201110388021 A CN 201110388021A CN 103133486 A CN103133486 A CN 103133486A
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- CN
- China
- Prior art keywords
- screw
- hangnail
- screw rod
- head
- screw thread
- 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.)
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Abstract
The invention relates to a screw with a barb structure. The screw with the barb structure comprises a head part, a threaded rod which is formed from the bottom face of the head part down in an extending mode, and threads which are arranged on the outer edge of the threaded rod. A plurality of barbs are arranged on the bottom face of the head part. According to the fact that the plurality of barbs are arranged on the bottom face of the head part, the phenomena of looseness and the like are prevented from occurring in the process that the screw is connected with a connecting piece.
Description
Technical field
The present invention relates to a kind of screw with hangnail structure.
Background technique
Screw is to utilize the inclined-plane circular rotating of object and physics and the mathematical principle of frictional force, and the instrument of fastening implements parts, be a kind of conventional fasteners by easy stages.Its structure generally comprises head, the screw rod that extends to form of this head bottom surface and the screw thread that is formed at the screw rod outer rim certainly downwards, and in common screw element, screw enters into two links by rotating force, thereby connects two links.And after connecting two links, due to reasons such as vibrations, screw can be easy to the phenomenons such as generation reverses, becomes flexible usually.
Summary of the invention
The object of the present invention is to provide a kind ofly prevent to become flexible, the screw with hangnail structure of the phenomenon such as disengaging.
For realizing aforementioned purpose, the present invention adopts following technological scheme: a kind of screw with hangnail structure, comprise head, the screw rod that extends to form from the head bottom surface downwards and be formed at screw thread on described screw rod outer rim, described head bottom surface is formed with several hangnails.
As a further improvement on the present invention, described hangnail is located in described screw rod periphery.
As a further improvement on the present invention, described hangnail tilts along the screw thread rotation direction.
As a further improvement on the present invention, described hangnail is provided with several shrinkage pools.
As a further improvement on the present invention, described screw rod and screw thread are provided with groove.
The present invention forms several hangnails by the bottom surface at screw head, and prevents that by this hangnail screw from producing the phenomenons such as loosening in the process that connects link.
Description of drawings
Fig. 1 has the structural representation of the screw of hangnail structure in the specific embodiment of the invention.
Fig. 2 is preparation process's the process flow diagram that has the screw of hangnail structure in the specific embodiment of the invention.
Embodiment
see also Fig. 1, a kind of screw with hangnail structure, comprise head 1, the screw rod 2 that extends to form downwards from head 1 bottom surface, and be formed at screw thread 3 on screw rod 2 outer rims, offer the groove 5 for chip removal on this screw rod 2 and screw thread 3, certainly this groove 5 also can only be opened on screw thread 3, its effect is identical with common groove, namely can be with screw when connecting link by this groove 5, the bits that produce between screw and link are last by this groove 5 discharges, described head 1 bottom surface is formed with several hangnails 4, this hangnail 4 is around in screw rod 2 peripheries, hangnail 4 tilts along the screw thread rotation direction, when screw rotates into link, because this hangnail 4 is to tilt along the screw thread rotation direction, hangnail 4 can enter in link easily, it is the surface that hangnail 4 is imbedded link, simultaneously also due to this kind design, itself can not produce destructiveness to hangnail 4 yet, and in order to increase the frictional force between hangnail 4 and link, be provided with several shrinkage pools 41 on described hangnail 4, this shrinkage pool 41 can also be used for piling up the bits end that groove 5 is discharged simultaneously.
See also Fig. 2, be above-mentioned preparation process's flow chart with screw of hangnail structure, this preparation process comprises the steps:
S1: head, screw rod and the screw thread of preparation screw, because the preparation process of this screw can adopt conventional process, therefore be not described in detail at this;
S2: form in described head bottom surface several from the bottom surface hangnail towards downward-extension, this hangnail is for to be obliquely installed along the screw thread rotation direction, can increase frictional force between screw and link by this hangnail, and arrange along the screw thread rotation direction due to it, therefore can not make hangnail that damage is arranged when assembling;
S3: offer several shrinkage pools on described hangnail, can increase frictional force between hangnail and link by offering shrinkage pool;
S4: form groove on described screw rod and screw thread;
S5: burr removing.
Originally preparation method's (being step S1) can adopt conventional process due to the screw that uses in above-mentioned preparation process, therefore, can obtain these parts by implement the method on plain screw at this, thereby can find out that its selection is convenient, technique is also fairly simple, and is easy to operate.
Although be the example purpose, the preferred embodiment of the present invention is disclosed, but those of ordinary skill in the art will recognize, in the situation that do not break away from by the disclosed scope and spirit of the present invention of appending claims, various improvement, increase and replacement are possible.
Claims (5)
1. screw with hangnail structure, comprise head (1), the screw rod (2) that extends to form from head (1) bottom surface downwards and be formed at screw thread (3) on described screw rod (2) outer rim, it is characterized in that: described head (1) bottom surface is formed with several hangnails (4).
2. the screw with hangnail structure according to claim 1, it is characterized in that: described hangnail (4) is located in described screw rod (2) periphery.
3. the screw with hangnail structure according to claim 1, it is characterized in that: described hangnail (4) tilts along the screw thread rotation direction.
4. according to claim 1 or 3 described screws with hangnail structure, it is characterized in that: described hangnail (4) is provided with several shrinkage pools (41).
5. the screw with hangnail structure according to claim 1 is characterized in that: described screw rod (2) is provided with groove (5) with screw thread (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103880211A CN103133486A (en) | 2011-11-29 | 2011-11-29 | Screw with barb structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103880211A CN103133486A (en) | 2011-11-29 | 2011-11-29 | Screw with barb structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103133486A true CN103133486A (en) | 2013-06-05 |
Family
ID=48493766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103880211A Pending CN103133486A (en) | 2011-11-29 | 2011-11-29 | Screw with barb structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103133486A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546345A (en) * | 2016-01-28 | 2016-05-04 | 浙江伟鑫金属制品有限公司 | Protective cover of oxygen cylinder |
| CN105937537A (en) * | 2016-06-27 | 2016-09-14 | 无锡迪奥机械有限公司 | Fixing bolt for wooden product |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2112494A (en) * | 1937-11-02 | 1938-03-29 | Illinois Tool Works | Locking means for screw threaded fasteners |
| CN2429677Y (en) * | 2000-06-13 | 2001-05-09 | 皇旗航空工业股份有限公司 | Loosen-proof screw |
| US20060257229A1 (en) * | 2005-05-16 | 2006-11-16 | Panduit Corp. | Bonding fastener |
| CN201428710Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Toothed half-thread inner hexagonal lock screw with flange surface |
| CN201763784U (en) * | 2010-06-07 | 2011-03-16 | 徐尚仁 | Heat-treating quenching hardening advancing-retreating anti-theft screw |
| US20110064540A1 (en) * | 2009-09-17 | 2011-03-17 | Mirco Walther | Screw having underside cutters and pockets |
-
2011
- 2011-11-29 CN CN2011103880211A patent/CN103133486A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2112494A (en) * | 1937-11-02 | 1938-03-29 | Illinois Tool Works | Locking means for screw threaded fasteners |
| CN2429677Y (en) * | 2000-06-13 | 2001-05-09 | 皇旗航空工业股份有限公司 | Loosen-proof screw |
| US20060257229A1 (en) * | 2005-05-16 | 2006-11-16 | Panduit Corp. | Bonding fastener |
| CN201428710Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Toothed half-thread inner hexagonal lock screw with flange surface |
| US20110064540A1 (en) * | 2009-09-17 | 2011-03-17 | Mirco Walther | Screw having underside cutters and pockets |
| CN201763784U (en) * | 2010-06-07 | 2011-03-16 | 徐尚仁 | Heat-treating quenching hardening advancing-retreating anti-theft screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546345A (en) * | 2016-01-28 | 2016-05-04 | 浙江伟鑫金属制品有限公司 | Protective cover of oxygen cylinder |
| CN105937537A (en) * | 2016-06-27 | 2016-09-14 | 无锡迪奥机械有限公司 | Fixing bolt for wooden product |
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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 | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |