CN105889277A - Novel automatic disengagement-preventing bolt - Google Patents
Novel automatic disengagement-preventing bolt Download PDFInfo
- Publication number
- CN105889277A CN105889277A CN201410735792.7A CN201410735792A CN105889277A CN 105889277 A CN105889277 A CN 105889277A CN 201410735792 A CN201410735792 A CN 201410735792A CN 105889277 A CN105889277 A CN 105889277A
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- CN
- China
- Prior art keywords
- disengagement
- preventing device
- nut
- drop device
- elastic force
- 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 discloses a novel automatic disengagement-preventing bolt which comprises a bolt head and a screw rod. A thread is arranged on the screw rod. The screw rod is further provided with a disengagement-preventing device installation groove. A disengagement-preventing device is arranged in the disengagement-preventing device installation groove. The disengagement-preventing device is in a V shape and comprises an anti-back end, a supporting part and an anti-back elastic force end. The anti-back end and the anti-back elastic force end are of an integrated structure. The anti-back device is fixed in the disengagement-preventing device installation groove through the supporting part. In order to prevent free rotation of the disengagement-preventing device, the appearance contour of the anti-back elastic force end in the disengagement-preventing device installation groove is consistent with the inner contour of the disengagement-preventing device installation groove. When a nut is assembled on the bolt, the nut passes through the disengagement-preventing device installation groove, due to the fact that elastic force from the anti-back elastic force end exists on the V-shaped disengagement-preventing device, the nut is compressed when passing through the disengagement-preventing device, screwing-in of the nut cannot be prevented, after the nut passes through the disengagement-preventing device, the anti-back end of the disengagement-preventing device stretches out from the interior of the disengagement-preventing device installation groove to abut against the rear end of the nut, and the nut is prevented from backing. The purpose of automatic back prevention is achieved.
Description
Technical field
The present invention relates to technical field of mechanical equipment, the most new type auto Anti-off bolt.
Background technology
In machinery industry, bolt assembly is generally used to fasten the parts that two or more needs are secured together；When the parts that two or more needs are secured together, in the case of vibrations are big in the work environment, in the course of time, nut slowly can loosen from bolt and even come off, thus affect the work of the parts that needs are fastened, security incident the most even can occur.
Summary of the invention
New type auto Anti-off bolt is provided for the above-mentioned technical problem present invention, including bolt head and screw rod, it is threaded on screw rod, it is characterized in that: on screw rod, be additionally provided with anti-drop device mounting groove, being provided with anti-drop device in anti-drop device mounting groove, described anti-drop device is V-shape, including anti-back end, supporting part and anti-back elastic force end, anti-back end and anti-back elastic force end are structure as a whole, and anti-back elastic force end appearance profile in anti-drop device mounting groove is consistent with the in-profile of anti-drop device mounting groove.
For preventing the nut being arranged on screw rod from falling back, described anti-back end stretches out in anti-drop device mounting groove and props up the nut being arranged on screw rod.
For preventing anti-drop device from damaging in the case of stress, anti-back end props up the working position of nut, and 1/2nd contact with nut, and 1/2nd are positioned at anti-drop device mounting groove.
The invention has the beneficial effects as follows, the when that nut being assembled on bolt, through anti-drop device mounting groove, owing to having the elastic force from anti-back elastic force end on the anti-drop device of V-type, nut is compressed through out-of-date anti-drop device, will not stop the screw-in of nut, when nut is after anti-drop device, the anti-back end of anti-drop device stretches out in anti-drop device mounting groove, and the rear end propping up nut prevents it from falling back.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Wherein, 1 bolt head, 2 screw rods, 3 anti-drop devices, 21 screw threads, 22 anti-drop device mounting grooves, 31 anti-back ends, 32 supporting parts, 33 anti-back elastic force ends.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is further described, but scope required for protection is not limited only to describe.
As shown in Figure 1, new type auto Anti-off bolt, including bolt head 1 and screw rod 2, 21 it are threaded on screw rod, anti-drop device mounting groove 22 it is additionally provided with on screw rod 2, anti-drop device 3 it is provided with in anti-drop device mounting groove, described anti-drop device 3 is in V-shape, including anti-back end 31, supporting part 32 and anti-back elastic force end 33, anti-back end 31 and anti-back elastic force end 33 are structure as a whole, anti-receding device 3 is fixed in anti-drop device mounting groove 22 by supporting part 32, in order to prevent the freely rotatable of anti-drop device, the anti-back elastic force end 33 appearance profile in anti-drop device mounting groove 22 is consistent with the in-profile of anti-drop device mounting groove 22.
For preventing the nut being arranged on screw rod from falling back, described anti-back end 31 stretches out in anti-drop device mounting groove 22 and props up the nut being arranged on screw rod 2.
For preventing anti-drop device from damaging in the case of stress, anti-back end 31 props up the working position of nut, and 1/2nd contact with nut, and 1/2nd are positioned at anti-drop device mounting groove 22.
The when that nut being assembled on bolt, through anti-drop device mounting groove, owing to having the elastic force from anti-back elastic force end on the anti-drop device of V-type, nut is compressed through out-of-date anti-drop device, the screw-in of nut will not be stoped, when nut is after anti-drop device, the anti-back end of anti-drop device stretches out in anti-drop device mounting groove, and the rear end propping up nut prevents it from falling back.Thus reach the purpose of automatic anti-back.
Claims (3)
- The most new type auto Anti-off bolt, including bolt head (1) and screw rod (2), screw rod arranges spiral shell on (2) Line (21), it is characterised in that: being additionally provided with anti-drop device mounting groove (22) on screw rod (2), anti-drop device is pacified Being provided with anti-drop device (3) in tankage (22), described anti-drop device (3) is in V-shape, including anti-back end (31), supporting part (32) and anti-back elastic force end (33), anti-back end (31) and anti-back elastic force end (33) It is structure as a whole, anti-back elastic force end (33) appearance profile in anti-drop device mounting groove (22) and anticreep The in-profile of device mounting groove (22) is consistent.
- New type auto Anti-off bolt the most as claimed in claim 1, it is characterised in that: described anti-back end (31) Stretch out in anti-drop device mounting groove (22) and prop up the nut being arranged on screw rod (2).
- New type auto Anti-off bolt the most as claimed in claim 1 or 2, it is characterised in that: anti-back end (31) Propping up the working position of nut, 1/2nd contact with nut, and 1/2nd are positioned at anti-drop device mounting groove (22) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735792.7A CN105889277A (en) | 2014-12-05 | 2014-12-05 | Novel automatic disengagement-preventing bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735792.7A CN105889277A (en) | 2014-12-05 | 2014-12-05 | Novel automatic disengagement-preventing bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889277A true CN105889277A (en) | 2016-08-24 |
Family
ID=56699524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735792.7A Pending CN105889277A (en) | 2014-12-05 | 2014-12-05 | Novel automatic disengagement-preventing bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679069A (en) * | 2018-05-08 | 2018-10-19 | 中国建筑第八工程局有限公司 | Anti-drop bolt and anti-drop bolt component and its application method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2310493A1 (en) * | 1975-05-09 | 1976-12-03 | Brondeur Fernand | Cap nut with internal locking arrangement - has ball between inside face and splayed end of screw |
| US5395193A (en) * | 1993-03-23 | 1995-03-07 | The Beta Group | Optimized elastic belleville fastener useful in eyeglass frames |
| CN201763773U (en) * | 2010-07-14 | 2011-03-16 | 蔡华明 | Screw structure |
| CN202531588U (en) * | 2012-03-27 | 2012-11-14 | 宁波永宏紧固件制造有限公司 | Self-locking bolt for elastic wedge |
| CN203201983U (en) * | 2013-03-29 | 2013-09-18 | 宁波金鹏高强度紧固件有限公司 | Bolt with spring buckles |
| CN203570815U (en) * | 2013-11-11 | 2014-04-30 | 贵州航晟机械制造有限责任公司 | Direct-plugging type steel plate fastener |
-
2014
- 2014-12-05 CN CN201410735792.7A patent/CN105889277A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2310493A1 (en) * | 1975-05-09 | 1976-12-03 | Brondeur Fernand | Cap nut with internal locking arrangement - has ball between inside face and splayed end of screw |
| US5395193A (en) * | 1993-03-23 | 1995-03-07 | The Beta Group | Optimized elastic belleville fastener useful in eyeglass frames |
| CN201763773U (en) * | 2010-07-14 | 2011-03-16 | 蔡华明 | Screw structure |
| CN202531588U (en) * | 2012-03-27 | 2012-11-14 | 宁波永宏紧固件制造有限公司 | Self-locking bolt for elastic wedge |
| CN203201983U (en) * | 2013-03-29 | 2013-09-18 | 宁波金鹏高强度紧固件有限公司 | Bolt with spring buckles |
| CN203570815U (en) * | 2013-11-11 | 2014-04-30 | 贵州航晟机械制造有限责任公司 | Direct-plugging type steel plate fastener |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679069A (en) * | 2018-05-08 | 2018-10-19 | 中国建筑第八工程局有限公司 | Anti-drop bolt and anti-drop bolt component and its application method |
| CN108679069B (en) * | 2018-05-08 | 2020-10-23 | 中国建筑第八工程局有限公司 | Anti-falling bolt, anti-falling bolt assembly and using method of anti-falling bolt and anti-falling bolt assembly |
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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 | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
|
| WD01 | Invention patent application deemed withdrawn after publication |