CN201180722Y - High-strength large hex bolt for steel structure - Google Patents
High-strength large hex bolt for steel structure Download PDFInfo
- Publication number
- CN201180722Y CN201180722Y CNU2008200333870U CN200820033387U CN201180722Y CN 201180722 Y CN201180722 Y CN 201180722Y CN U2008200333870 U CNU2008200333870 U CN U2008200333870U CN 200820033387 U CN200820033387 U CN 200820033387U CN 201180722 Y CN201180722 Y CN 201180722Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- strength
- threaded rod
- steel structure
- screw rod
- 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 - Fee Related
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Abstract
The utility model relates to a fastener, and in particular to a high-strength bolt with a large hexagon head used for a steel structure. The high-strength bolt includes a bolt head and a threaded rod connected with the bolt into a whole; a threaded section is arranged at the front section of the threaded rod; the threaded rod is hollow; and the joint of the threaded rod and the bolt head adopts the fillet transition. The high-strength bolt makes the threaded rod to be hollow, thereby becoming a flexible bolt; when the flexible bolt is shocked and vibrated, the deflection is large, the function of energy absorption is strong, and the strength thereof is improved; the fillet transition is adopted at the joint of the threaded rod and the bolt head, the phenomenon of stress concentration can be reduced, and the strength of the bolt can be further improved.
Description
Technical field
The utility model relates to a kind of fastening piece, relates in particular to a kind of high-strength large hexagon head bolt used for steel structure.
Background technique
High-strength large hexagon head bolt used for steel structure is the fastening piece that people use always in daily life and activity in production, intensity is its most important technical order, the height of its intensity not only influences its working life, and affect the safety of property and people's life, how to improve the direction that its intensity is its development always.
The model utility content
The utility model is at above-mentioned defective, and purpose is to provide a kind of high-strength large hexagon head bolt used for steel structure of further its join strength of raising.
The technical solution of the utility model is: the utility model comprises bolt head and the screw rod that fuses with it, and the leading portion of screw rod is provided with thread section, and screw rod is a hollow shape, and round-corner transition is adopted in the joint of screw rod and bolt head.
Its fillet radius is between the 0.8-2.5mm.
The utility model is made hollow shape with screw rod, make it become flexible bolt, when it is subjected to shock and vibration, amount of deformation is big, the absorption energy is strong, makes its intensity improve, and the utility model adopts round-corner transition in the joint of bolt head and screw rod, can reduce the stress concentration phenomenon, further improve bolt strength.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is bolt head, the 2nd among the figure, screw rod.
Fig. 2 is a sectional view of the present utility model
Embodiment
The screw rod 2 that the utility model comprises bolt head 1 and fuses with it, the leading portion of screw rod 2 is provided with thread section, and screw rod 2 is a hollow shape, and round-corner transition is adopted in the joint of screw rod 2 and bolt head 1, and its fillet radius is between the 0.8-2.5mm.
Claims (2)
1, high-strength large hexagon head bolt used for steel structure comprises bolt head and the screw rod that fuses with it, and the leading portion of screw rod is provided with thread section, it is characterized in that, screw rod is a hollow shape, and round-corner transition is adopted in the joint of screw rod and bolt head.
2, high-strength large hexagon head bolt used for steel structure according to claim 1 is characterized in that, its fillet radius is between the 0.8-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333870U CN201180722Y (en) | 2008-03-31 | 2008-03-31 | High-strength large hex bolt for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333870U CN201180722Y (en) | 2008-03-31 | 2008-03-31 | High-strength large hex bolt for steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180722Y true CN201180722Y (en) | 2009-01-14 |
Family
ID=40250222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200333870U Expired - Fee Related CN201180722Y (en) | 2008-03-31 | 2008-03-31 | High-strength large hex bolt for steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180722Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454677A (en) * | 2010-10-26 | 2012-05-16 | 中国北车集团大同电力机车有限责任公司 | Bolt coupling device |
| CN103277389A (en) * | 2013-06-14 | 2013-09-04 | 苏州柏德纳科技有限公司 | Hexagonal bolt |
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
| CN109114089A (en) * | 2018-10-24 | 2019-01-01 | 浙江润锦汽车科技有限公司 | A kind of gearbox bolt |
| CN114294311A (en) * | 2021-12-30 | 2022-04-08 | 中南大学 | Anti-pulling flexible shear-resistant self-tapping screw |
-
2008
- 2008-03-31 CN CNU2008200333870U patent/CN201180722Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454677A (en) * | 2010-10-26 | 2012-05-16 | 中国北车集团大同电力机车有限责任公司 | Bolt coupling device |
| CN102454677B (en) * | 2010-10-26 | 2014-03-19 | 中国北车集团大同电力机车有限责任公司 | Bolt coupling device |
| CN103277389A (en) * | 2013-06-14 | 2013-09-04 | 苏州柏德纳科技有限公司 | Hexagonal bolt |
| CN108644207A (en) * | 2018-06-26 | 2018-10-12 | 浙江长瑞精密零部件制造有限公司 | A kind of flexible Anti-off bolt of petrochemical industry |
| CN109114089A (en) * | 2018-10-24 | 2019-01-01 | 浙江润锦汽车科技有限公司 | A kind of gearbox bolt |
| CN114294311A (en) * | 2021-12-30 | 2022-04-08 | 中南大学 | Anti-pulling flexible shear-resistant self-tapping screw |
| CN114294311B (en) * | 2021-12-30 | 2022-09-16 | 中南大学 | Anti-pulling flexible shear-resistant self-tapping screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 |