CN204703090U - Breakaway marker post rod structure - Google Patents
Breakaway marker post rod structure Download PDFInfo
- Publication number
- CN204703090U CN204703090U CN201520213479.7U CN201520213479U CN204703090U CN 204703090 U CN204703090 U CN 204703090U CN 201520213479 U CN201520213479 U CN 201520213479U CN 204703090 U CN204703090 U CN 204703090U
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- CN
- China
- Prior art keywords
- groove
- disintegration
- roofbolt
- breakaway
- thickness
- 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
A kind of Breakaway marker post rod structure, is characterized in that: be circumferentially processed with groove at disintegration roofbolt distance 0.3-0.5 rice, ground, and the thickness of disintegration roofbolt is 4.5mm, and the thickness of groove is 1.5mm, and the height of groove is 8mm, makes cross section marked change.The utility model by arranging groove on roofbolt; when being subject to Vehicular impact; collision energy is absorbed by the disintegration of self; thus alleviate accident (Crash) severity, can also bear the conventional impacts such as wind carries, test proves: the maximum tensile stress that groove type spar structure is subject to is 7.30E8N simultaneously; maximum compressive stress is 1.89E8N; be 455MPA more than the ultimate tensile strength of Q235 steel, Breakaway mark can destroy disintegration, can play the effect of protection passenger safety.
Description
Technical field
The utility model relates to the mark roofbolt that a kind of highway is arranged, and especially relates to a kind of mark roofbolt of Breakaway.
Background technology
20 century 70s, design concept that American scholar proposes " forgiveness ": in vehicle traveling process, driver occurs to drive mistake and is difficult to avoid, the traffic accident that these mistakes may cause directly should not cause the death of passenger, and tolerant space and corresponding safety measure are indispensable.But, the means of transportation that traffic sign, street lamp, electric wire roofbolt etc. are arranged at trackside can not be removed, when vehicle sails trackside region into due to the fault of driver, and when colliding with these means of transportation, can there is gross distortion in vehicle, mostly be lethal or servere injury accident.When being subject to Vehicular impact, absorb collision energy by the disintegration of self, thus alleviate the traffic sign of accident (Crash) severity.Decision-making foundation can be provided for highway in China vehicle supervision department etc. to the research of trackside Breakaway mark, improve the safety that errant vehicle sails trackside region into, reduce the harm of collision trackside traffic sign accident, alleviate the extent of injury of accident to motor vehicle and occupant, theory and practice has very important meaning.
Utility model content
Can the highway sign roofbolt of Breakaway when the purpose of this utility model is to provide a kind of car crass, to reduce serious traffic accident, the safety of life and property of protection people.
For achieving the above object, the utility model provides a kind of Breakaway marker post rod structure, it is characterized in that: disintegration roofbolt distance 0.3-0.5 rice, ground be circumferentially processed with groove, the thickness of disintegration roofbolt is 4.5mm, the thickness of groove is 1.5mm, the height of groove is 8mm, makes cross section marked change.
The utility model, by arranging groove on roofbolt, when being subject to Vehicular impact, becomes the stressed plane of weakness in collision process; collision energy is absorbed by the disintegration of self; thus alleviate accident (Crash) severity, play the effect of protection passenger safety, the conventional impacts such as wind carries can also be born simultaneously.
Carry out stress analysis by the unit of the division to groove type spar structure, analysis result sees the following form.As can be seen from the table; the maximum tensile stress that groove type spar structure is subject to is 7.30E8N, and maximum compressive stress is 1.89E8N, is 455MPA more than the ultimate tensile strength of Q235 steel; Breakaway mark can destroy disintegration, can play the effect of protection passenger safety.
Groove type roofbolt project organization stress
| Sequence number | Stress (Pa) | Sequence number | Stress (Pa) |
| 1 | -1.35E+06 | 16 | -4.50E+06 |
| 2 | 1.52E+08 | 17 | -4.44E+07 |
| 3 | 3.02E+08 | 18 | -8.19E+07 |
| 4 | 4.36E+08 | 19 | -1.16E+08 |
| 5 | 5.48E+08 | 20 | -1.44E+08 |
| 6 | 6.38E+08 | 21 | -1.66E+08 |
| 7 | 6.96E+08 | 22 | -1.81E+08 |
| 8 | 7.30E+08 | 23 | -1.89E+08 |
| 9 | 7.17E+08 | 24 | -1.89E+08 |
| 10 | 6.74E+08 | 25 | -1.81E+08 |
| 11 | 6.21E+08 | 26 | -1.66E+08 |
| 12 | 5.37E+08 | 27 | -1.44E+08 |
| 13 | 4.19E+08 | 28 | -1.15E+08 |
| 14 | 2.89E+08 | 29 | -8.19E+07 |
| 15 | 1.47E+08 | 30 | -4.44E+07 |
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Detailed description of the invention
With reference to accompanying drawing 1, roofbolt of the present utility model is characterised in that: be processed with groove 2 at disintegration roofbolt 1 apart from 0.3-0.5 rice, ground, and the thickness of disintegration roofbolt is 4.5mm, and the thickness of groove is 1.5mm, and the height of groove is 8mm, makes cross section marked change.The height on disintegration roofbolt distance ground is selected according to vehicle difference.
Claims (1)
1. a Breakaway marker post rod structure, it is characterized in that: disintegration roofbolt distance 0.3-0.5 rice, ground be circumferentially processed with groove, the thickness of disintegration roofbolt is 4.5mm, and the thickness of groove is 1.5mm, the height of groove is 8mm, makes cross section marked change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213479.7U CN204703090U (en) | 2015-04-10 | 2015-04-10 | Breakaway marker post rod structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520213479.7U CN204703090U (en) | 2015-04-10 | 2015-04-10 | Breakaway marker post rod structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703090U true CN204703090U (en) | 2015-10-14 |
Family
ID=54282716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520213479.7U Expired - Fee Related CN204703090U (en) | 2015-04-10 | 2015-04-10 | Breakaway marker post rod structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622335A (en) * | 2021-07-20 | 2021-11-09 | 许尚 | Emergency danger avoiding device for highway bridge |
-
2015
- 2015-04-10 CN CN201520213479.7U patent/CN204703090U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622335A (en) * | 2021-07-20 | 2021-11-09 | 许尚 | Emergency danger avoiding device for highway bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20160410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |