CN103453000A - Safety bolt with blind hole - Google Patents
Safety bolt with blind hole Download PDFInfo
- Publication number
- CN103453000A CN103453000A CN2012101710282A CN201210171028A CN103453000A CN 103453000 A CN103453000 A CN 103453000A CN 2012101710282 A CN2012101710282 A CN 2012101710282A CN 201210171028 A CN201210171028 A CN 201210171028A CN 103453000 A CN103453000 A CN 103453000A
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- CN
- China
- Prior art keywords
- bolt
- blind hole
- screw
- safety
- 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.)
- Pending
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Abstract
The invention provides a safety bolt with a blind hole and relates to the technical field of safety bolts and discloses a bolt with the blind hole parallel to the screw axis from the center of the surface of a nut to the inside of a screw. Under an abnormal use state, the screw first breaks due to the reduction of the sectional area of the screw, spread of destructive force is prevented, and safety of important parts is guaranteed; under the normal use state, the shape surface of the screw is not changed, and the safety bolt can be normally used like an ordinary bolt.
Description
Technical field
The present invention relates to the technical field of breaker bolt.
Background technique
Aspect the reliability design of aircraft, usually adopt under the state of non-normal use loss local support integral body, the theory of losing less important component guarantee important spare part.So, at the position of the preferential loss of need, usually adopt breaker bolt to connect.Existing breaker bolt is generally by groove is set on supporting plane, reach to reduce section area the purpose that reduces bearing capacity, but this structure is concentrated because the groove on supporting plane easily produces stress, affect the stress distribution under normal operating condition, be unfavorable for the use of breaker bolt under normal state.
Summary of the invention
The objective of the invention is: in order to meet the usage requirement of breaker bolt under normal state, increased when emergent the issuable position of rupturing, thereby improved emergent reliability analysis, specially disclosed a kind of breaker bolt with blind hole.
Technological scheme of the present invention is: the structural type of the breaker bolt with blind hole of the present invention as shown in Figure 1, is consisted of the nut 1 of screw rod 3 and screw rod 3 one ends and the screw thread 4 on screw rod 3 the other end surfaces and the insurance hole 5 of end; And, be parallel to the blind hole 2 of screw rod 3 axis to the inner processing one of screw rod 3 from nut 1 outer surface center.
The present invention has the following advantages: by the enforcement of technique scheme, increased when emergent the issuable position of rupturing in the stress distribution under not changing the breaker bolt normal operating condition, thereby improved emergent reliability analysis.
The accompanying drawing explanation
Fig. 1 is breaker bolt structural representation of the present invention.
Embodiment
Below by embodiment, the present invention is described in further detail:
Applied breaker bolt of the present invention in the emergent dialysis design of wing flap in the ARJ21-700 aircraft, it adopts the stainless steel round bar of A286 solid solution aging to be processed into, bolt external diameter 19.6mm, blind hole internal diameter 8.6mm, blind hole depth 58mm.Due to the screw portion of bolt, without groove, make the screw portion of breaker bolt there is smooth contoured surface; And blind hole has certain degree of depth, and just the cross section at prior art further groove place reduce, increased when emergent the issuable position of rupturing, thereby improved emergent reliability analysis.In addition, breaker bolt profile of the present invention, with bolt is identical usually, can adopt common bolt Connecting format to be assembled.
Claims (1)
1. the breaker bolt with blind hole, formed by the nut (1) of screw rod (3) and screw rod (3) one ends and the screw thread (4) on screw rod (3) the other end surface and the insurance hole (5) of end, be it is characterized in that: a blind hole (2) that is parallel to screw rod (3) axis is arranged to screw rod (3) inside from nut (1) outer surface center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101710282A CN103453000A (en) | 2012-05-29 | 2012-05-29 | Safety bolt with blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101710282A CN103453000A (en) | 2012-05-29 | 2012-05-29 | Safety bolt with blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103453000A true CN103453000A (en) | 2013-12-18 |
Family
ID=49735724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101710282A Pending CN103453000A (en) | 2012-05-29 | 2012-05-29 | Safety bolt with blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103453000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898875A (en) * | 2014-04-17 | 2014-07-02 | 江苏博泓新材料科技有限公司 | Liquid bag energy dissipation ring |
| CN106050866A (en) * | 2016-07-15 | 2016-10-26 | 许继集团有限公司 | Connection element and anti-fatigue structure for rod-type component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2006276A (en) * | 1932-12-03 | 1935-06-25 | Nodiere Victor | Safety bolt |
| JP4296722B2 (en) * | 2001-04-25 | 2009-07-15 | トヨタ自動車株式会社 | Fastening bolt |
| CN201377499Y (en) * | 2009-04-23 | 2010-01-06 | 贵州航天精工制造有限公司 | Structure preventing bolt from irregular breaking when force applied exceeds specified value |
| CN201437813U (en) * | 2009-06-04 | 2010-04-14 | 宁波金鹏高强度紧固件有限公司 | Windmill fixing bolt |
-
2012
- 2012-05-29 CN CN2012101710282A patent/CN103453000A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2006276A (en) * | 1932-12-03 | 1935-06-25 | Nodiere Victor | Safety bolt |
| JP4296722B2 (en) * | 2001-04-25 | 2009-07-15 | トヨタ自動車株式会社 | Fastening bolt |
| CN201377499Y (en) * | 2009-04-23 | 2010-01-06 | 贵州航天精工制造有限公司 | Structure preventing bolt from irregular breaking when force applied exceeds specified value |
| CN201437813U (en) * | 2009-06-04 | 2010-04-14 | 宁波金鹏高强度紧固件有限公司 | Windmill fixing bolt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898875A (en) * | 2014-04-17 | 2014-07-02 | 江苏博泓新材料科技有限公司 | Liquid bag energy dissipation ring |
| CN103898875B (en) * | 2014-04-17 | 2015-09-02 | 江苏博泓新材料科技有限公司 | Liquid Nang Xiaonengquan |
| CN106050866A (en) * | 2016-07-15 | 2016-10-26 | 许继集团有限公司 | Connection element and anti-fatigue structure for rod-type component |
| CN106050866B (en) * | 2016-07-15 | 2018-05-18 | 许继集团有限公司 | A kind of antifatigue structure of connector and rod-type component |
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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: 20131218 |