CN103807272B - A kind of screw with auto-lock function - Google Patents
A kind of screw with auto-lock function Download PDFInfo
- Publication number
- CN103807272B CN103807272B CN201210458121.1A CN201210458121A CN103807272B CN 103807272 B CN103807272 B CN 103807272B CN 201210458121 A CN201210458121 A CN 201210458121A CN 103807272 B CN103807272 B CN 103807272B
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- Prior art keywords
- screw
- section
- increase
- auto
- lock function
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- 230000007704 transition Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention belongs to technical field of mechanical design, relate to a kind of screw with auto-lock function, it is characterized in that, this screw has at least one to increase section close to screw termination, the maximum diameter a increasing section is the 115%-125% of remaining part screw diameter b, and the length c increasing section is the 150%-200% of remaining part screw diameter b; A groove is had at threaded end centriciput, the bottom surface of groove is no more than 1/3rd of this increase segment length with the distance d near the close screw cap end of the increase section of screw cap, the width e of groove is 15% of screw diameter b, and increase section section start is 100% of screw diameter b to the distance f of screw termination.The present invention does not increase number of spare parts, carries out appropriate reconstruction only by screw, and screw can be made to have auto-lock function.
Description
Technical field
The invention belongs to technical field of mechanical design, relate to a kind of screw with auto-lock function.
Background technique
In Fixture Design, usually need the screw to installing to carry out anti-rotation process, method is a lot, but is all by increasing different parts to reach the object preventing screw from rotating.In order to adapt to the requirement of some jig Design, needing to simplify locking device, iting is desirable to effectively to utilize less space to realize screw self-locking.
Summary of the invention
The object of the invention is: propose a kind of screw with auto-lock function.
Technological scheme of the present invention is: a kind of screw with auto-lock function, one is had at least to increase section close to screw termination, the maximum diameter a increasing section is the 115%-125% of remaining part screw diameter b, and the length c increasing section is the 150%-200% of remaining part screw diameter b; Have a groove at threaded end centriciput, the bottom surface of groove is no more than near the distance d of screw cap end with increase section and increases 1/3rd of segment length, and the width e of groove is 15% of screw diameter b.Increase section section start is 100% of screw diameter b to the distance f of screw termination.
The profile increasing section is curved circular cylinder, and increase section and screw adopt camber line smooth transition.
The profile increasing section can also be cylindrical body, and increase section and screw adopt camber line or straight transitions.
When the quantity of increase section is greater than 1, connecting a distance increasing end is 200% of screw diameter b.
Advantage of the present invention is: do not increase number of spare parts, carries out appropriate reconstruction only by screw, and screw can be made to have auto-lock function.
Accompanying drawing explanation
A kind of screw schematic diagram with auto-lock function of Fig. 1 to be the present invention's section of increase profile be curved circular cylinder.
Fig. 2 profile that to be the present invention be increases section is cylindrical a kind of screw schematic diagram with auto-lock function.
Fig. 3 the present invention is a kind of screw schematic diagram with auto-lock function that the quantity increasing section is greater than 1.
Embodiment
Below the present invention is described in further details.
The present invention enough ensures that screw is in rundown process, by increasing the compression at section position, fluting place, screw termination is produced, make the raw resiliently deformable of threaded end hair, make fluting position screw head have the function of spring-like, internal and external threads reclining tightly can be made, reach the object of locking.
Following several mode of execution can be had in the present invention:
The profile increasing section is curved circular cylinder, and increase section and screw adopt camber line excessively smooth.
Embodiment 1: see Fig. 1, a kind of screw with auto-lock function, and have one to increase section close to screw termination, the maximum diameter a increasing section is 10mm, and remaining part screw diameter b is 8mm, and the length c increasing section is 12mm; Have a groove at threaded end centriciput, the bottom surface of groove is 4mm with increasing section near the distance d of screw cap end, and the width 1 of groove is mm, and increase section section start is 8mm to the distance of screw termination.
The profile increasing section is also cylindrical body, and increase section and screw adopt straight line excessive.
Embodiment 2: a kind of screw with auto-lock function, and have one to increase section close to screw termination, the maximum diameter a increasing section is 10mm, and remaining part screw diameter b is 8mm, and the length c increasing section is 12mm; Have a groove at threaded end centriciput, the bottom surface of groove is 4mm with increasing section near the distance d of screw cap end, and the width e of groove is 1mm, and increase section section start is 8mm to the distance of screw termination.
The quantity increasing section is greater than 1.
Embodiment 3: a kind of screw with auto-lock function, and be arranged more than one close to screw termination and increase section, the maximum radius a increasing section is 5mm, and remaining part screw radius b is 4mm, and the length c increasing section is 12mm; Have a groove at threaded end centriciput, the bottom surface of groove is 4mm with increasing section near the distance d of screw cap end, and the width e of groove is 1mm.Increase section section start is 8mm to the distance of screw termination.Two spacing increasing end are 16mm.
Claims (4)
1. the screw with auto-lock function, it is characterized in that, this screw has at least one to increase section close to screw termination, and the maximum diameter a increasing section is the 115%-125% of remaining part screw diameter b, and the length c increasing section is the 150%-200% of remaining part screw diameter b; A groove is had at threaded end centriciput, the bottom surface of groove is no more than near the distance d of screw cap end with increase section and increases 1/3rd of segment length, the width e of groove is 15% of screw diameter b, and increase section section start is 100% of screw diameter b to the distance f of screw termination.
2. a kind of screw with auto-lock function as claimed in claim 1, is characterized in that, the profile of described increase section is curved circular cylinder, and increase section and screw adopt camber line smooth transition.
3. a kind of screw with auto-lock function as claimed in claim 1, is characterized in that, increase the profile of section for being cylindrical body, increase section and screw adopt camber line or straight transitions.
4. a kind of screw with auto-lock function as described in one of claim 1-3, is characterized in that, when the quantity of increase section is greater than 1, two distances increasing sections are 200% of screw diameter b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458121.1A CN103807272B (en) | 2012-11-14 | 2012-11-14 | A kind of screw with auto-lock function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210458121.1A CN103807272B (en) | 2012-11-14 | 2012-11-14 | A kind of screw with auto-lock function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103807272A CN103807272A (en) | 2014-05-21 |
| CN103807272B true CN103807272B (en) | 2016-01-20 |
Family
ID=50704516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210458121.1A Active CN103807272B (en) | 2012-11-14 | 2012-11-14 | A kind of screw with auto-lock function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807272B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591231B (en) * | 2018-05-14 | 2020-08-04 | 王栋树 | Connecting assembly capable of preventing threads from being disengaged |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065912A (en) * | 1991-04-16 | 1992-11-04 | 王常智 | Stress loose-proof self-lock bolt |
| CN1457401A (en) * | 2002-05-01 | 2003-11-19 | 山田房夫 | Anti-loosen fastener |
| CN101146647A (en) * | 2005-05-26 | 2008-03-19 | 丰田自动车株式会社 | Bolt fastening method and bolt fastening device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4519045B2 (en) * | 2005-09-28 | 2010-08-04 | 濱中ナット株式会社 | Screw locking structure |
-
2012
- 2012-11-14 CN CN201210458121.1A patent/CN103807272B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065912A (en) * | 1991-04-16 | 1992-11-04 | 王常智 | Stress loose-proof self-lock bolt |
| CN1457401A (en) * | 2002-05-01 | 2003-11-19 | 山田房夫 | Anti-loosen fastener |
| CN101146647A (en) * | 2005-05-26 | 2008-03-19 | 丰田自动车株式会社 | Bolt fastening method and bolt fastening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103807272A (en) | 2014-05-21 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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