CN201810633U - Novel bolt - Google Patents
Novel bolt Download PDFInfo
- Publication number
- CN201810633U CN201810633U CN2010205746557U CN201020574655U CN201810633U CN 201810633 U CN201810633 U CN 201810633U CN 2010205746557 U CN2010205746557 U CN 2010205746557U CN 201020574655 U CN201020574655 U CN 201020574655U CN 201810633 U CN201810633 U CN 201810633U
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- CN
- China
- Prior art keywords
- bolt
- directional post
- axis
- utility
- model
- 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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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a fastener, in particular to a bolt. A novel bolt comprises a bolt head and a screw, and is characterized in that one end of the screw which is far away from the bolt head is provided with a guide post, and the diameter of the guide post is smaller than the major diameter of thread. The utility model has the beneficial effects of effectively guiding the bolt, reducing the deviator between the axis of the bolt and the axis of a nut or a threaded hole, and avoiding bolt seizure and clamping and the like.
Description
Technical field
The utility model relates to a kind of fastening piece, especially relates to a kind of bolt.
Background technique
Screw thread on the existing bolt cooperates with tapped hole by the end face chamfering from the end away from bolt head, but the easy deflection of the axis of the axis of bolt and tapped hole, causes bolt to kill and card rolls.As the Chinese patent notification number be: CN 201575022U, in disclosed a kind of bolt on September 8th, 2010, comprise bolt head and screw rod, affiliated screw rod is provided with at least one annular groove that jump ring can be installed.Though when bolton first fixed block of this patent and second fixed block, operate, fetch, use all and make things convenient for, the easy deflection of axis caused bolt to kill and card rolls when bolt cooperated with tapped hole.
Summary of the invention
The utility model mainly is the easy deflection of axis when cooperating with tapped hole at existing bolt, cause bolt to kill and block the problem of rolling, provide a kind of can be effectively to the bolt guiding, reduce between bolt axis and the tapped hole axis deflection, avoid bolt to kill and block the novel bolt that rolls.
The purpose of this utility model mainly is achieved by following proposal: a kind of novel bolt, comprise bolt head and screw rod, and described screw rod is provided with directional post away from an end of bolt head, and described directional post diameter is less than major diameter of thread.Screw rod is provided with directional post away from an end of bolt head, when bolt cooperates with tapped hole, because the directional post diameter is less than major diameter of thread, can insert directional post in the tapped hole earlier, directional post can play leading role, reduce the deflection between screw axis and the tapped hole axis, avoid that the bolt deflection causes kill and card rolls.
As preferably, described directional post is threadless cylinder.Directional post plays leading role, does not need the threads engaged with tapped hole, so directional post can be threadless cylinder.
Directional post also can be provided with the screw thread reverse with screw flight, and it is more accurate to lead, and the bolt deflection is littler.
Therefore, the utlity model has can be effectively to the bolt guiding, reduce between bolt axis and nut or the tapped hole axis deflection, avoid bolt to kill and card such as rolls at beneficial effect.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is another kind of structural representations of the present utility model.
Illustrate: 1-screw rod, 2-bolt head, 3-directional post.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, a kind of novel bolt comprises bolt head 2 and screw rod 1, and the end away from bolt head 2 on the screw rod 1 is provided with directional post 3, directional post 3 do not need with tapped hole on threads engaged, so directional post 3 is one section threadless cylinder.Wherein, if in the excessive very difficult insertion tapped hole of the diameter of directional post 3, if the too small meeting of the diameter of directional post 3 loses leading role.So the diameter d of directional post 3 and pitch are that the relation of the major diameter of thread M on the screw rod 1 of P is: d ≈ M-1.1P.When bolts and nuts or tapped hole cooperation, earlier directional post 3 is inserted in the tapped holes, the axis of assurance bolt and tapped hole axis are substantially on same straight line, tight a bolt again, to reduce the bolt deflection, avoid bolt to kill and card rolls, reduce bolt thread because the wearing and tearing that deflection cooperates.
Embodiment 2:
As shown in Figure 2, present embodiment and embodiment's 1 structure is basic identical, and difference is, in the present embodiment directional post 3 be provided with screw rod 1 on the reverse screw thread of screw thread, it is more accurate to lead, the deflection of bolt is littler.
Should be understood that this embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (3)
1. a novel bolt comprises bolt head and screw rod, it is characterized in that, described screw rod (1) is provided with directional post (3) away from an end of bolt head (2), and described directional post (3) diameter is less than major diameter of thread.
2. novel bolt according to claim 1 is characterized in that, described directional post (3) is threadless cylinder.
3. novel bolt according to claim 1 is characterized in that, described directional post (3) is provided with the screw thread reverse with screw flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205746557U CN201810633U (en) | 2010-10-25 | 2010-10-25 | Novel bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205746557U CN201810633U (en) | 2010-10-25 | 2010-10-25 | Novel bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810633U true CN201810633U (en) | 2011-04-27 |
Family
ID=43893575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205746557U Expired - Fee Related CN201810633U (en) | 2010-10-25 | 2010-10-25 | Novel bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705346A (en) * | 2012-06-20 | 2012-10-03 | 常熟市平冶机械有限公司 | Novel bolt |
| CN104302932A (en) * | 2012-06-01 | 2015-01-21 | 株式会社青山制作所 | Anti-seizing bolt |
-
2010
- 2010-10-25 CN CN2010205746557U patent/CN201810633U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302932A (en) * | 2012-06-01 | 2015-01-21 | 株式会社青山制作所 | Anti-seizing bolt |
| CN102705346A (en) * | 2012-06-20 | 2012-10-03 | 常熟市平冶机械有限公司 | Novel bolt |
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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: 20110427 Termination date: 20111025 |