CN203285816U - Bolt provided with guide structure - Google Patents
Bolt provided with guide structure Download PDFInfo
- Publication number
- CN203285816U CN203285816U CN2013202985009U CN201320298500U CN203285816U CN 203285816 U CN203285816 U CN 203285816U CN 2013202985009 U CN2013202985009 U CN 2013202985009U CN 201320298500 U CN201320298500 U CN 201320298500U CN 203285816 U CN203285816 U CN 203285816U
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- CN
- China
- Prior art keywords
- bolt
- screw thread
- guide structure
- conical surface
- bolt body
- 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 - Lifetime
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model relates to a bolt. The bolt provided with a guide structure comprises a bolt body, wherein the bolt body is provided with a plurality of circles of threads; the radial outer ends of the threads, located on the tail end of the bolt body, of all the threads are located on a tapered surface. The utility model provides the bolt provided with the guide structure, which can prevent a screw loosing phenomenon from occurring in a bolt assembling process, so that the problem that the screw loosing phenomenon is easy to occur in an existing bolt assembling process is solved.
Description
Technical field
The utility model relates to bolt, relates in particular to a kind of bolt that is provided with guide structure.
Background technique
Bolt is a kind of link commonly used.Be 201020268798.5 in Chinese patent application number, notice of authorization day be March 23 in 2011 day, be called " bolt " and Chinese patent application number for 201020290157.X, notice of authorization day be April 6 in 2011 day, be called that in the patent documentation of " bolt ", each discloses a kind of bolt.The structural type of existing bolt is as structural type public in above each patent document, the affixed connecting head (crosshead, flat head and hexagon socket head etc. are arranged) of same tool matching is set at an end (being commonly referred to head end) of bolt body, at the other end (being commonly referred to tail end) of bolt body, screw thread is set.The large footpath of each the circle screw thread on existing bolt is all that the radial outer end that equates, be all screw threads on bolt body all is positioned on cylinder.The above design of the screw thread on bolt has the following disadvantages:, if when the axis of the axis of bolt and nut or tapped hole is not parallel in assembly process, easily produce sliding dental phenomenon.
The model utility content
The utility model provides a kind of bolt that is provided with guide structure that can prevent from producing in the bolts assemblies process sliding dental phenomenon, has solved the problem that easily produces sliding dental phenomenon in existing bolts assemblies process.
Above technical problem solves by following technical proposal: a kind of bolt that is provided with guide structure, comprise bolt body, and described bolt body is provided with some circle screw threads, and the radial outer end that described screw thread is positioned at the screw thread on the bolt body tail end is positioned on the conical surface.In assembly process, the tail end of screw thread body is alignd with tapped hole, by assembly tool rotating bolt body, bolt is screwed in tapped hole after assembly tool being connected on the instrument connecting head of bolt body, because the radial outer end that is positioned at the screw thread on the bolt body tail end is positioned on the conical surface, when bolt produces curving, can play the automatic capturing effect, thereby can prevent from assembly process producing sliding tooth.
, as preferably, be positioned at rare two circles that are threaded on the described conical surface.The guiding centering is effective.
As preferably, the drift angle of the described conical surface is A, 5 °≤A≤40 °.Both be convenient to processing, and can have guaranteed again to have better centering effect.
As preferably, the radial inner end of all described screw threads all is positioned on same cylinder.Patency in assembly process is good, can improve the convenience that adds man-hour.
The utlity model has following advantage: by the radial outer end that will be positioned at the screw thread on the bolt body tail end, be designed to be positioned on the conical surface, when in assembly process, if bolt produces curving, can automatic capturing, thereby can effectively prevent from assembly process producing sliding dental phenomenon.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation.
Fig. 2 is the utility model embodiment two structural representation.
Fig. 3 is the utility model embodiment three structural representation.
In figure: bolt body 1, instrument connecting head 2, screw thread 3, threading path outward 31, screw thread radial inner end 32, first conical surface 4, cylinder 5, second conical surface 6, the drift angle A of first conical surface, the drift angle B of second conical surface.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Embodiment one, and referring to Fig. 1, a kind of bolt that is provided with guide structure, comprise bolt body 1.
The head end of bolt body 1 is provided with instrument connecting head 2.Instrument connecting head 2 is hexagon socket head.Screw thread body 1 is provided with screw thread 3.Screw thread 3 has multi-turn.The threading path that screw thread 3 is positioned at 3 on bolt body 1 tail end circle screw thread 31 is positioned on first conical surface 4 outward.The drift angle A of first conical surface is 20 °.The screw thread radial inner end 32 of all screw threads on bolt body 1 all is positioned on same cylinder 5.
During use, the tail end of screw thread body 1 is alignd with tapped hole, the inner hexagon spanner of coupling is connected on instrument connecting head 2, rotate inner hexagon spanner the utility model is threaded onto in tapped hole.When screw thread body in rotation process produced axial curving, the three circle screw threads 3 that are positioned at bolt body 1 afterbody can play the centering effect, thereby avoid producing sliding dental phenomenon.
Embodiment two,, referring to Fig. 2, with embodiment one difference, are: only have 2 circles to be positioned on first conical surface 4 in screw thread 3.The drift angle A of first conical surface is 40 °.
Embodiment three, and referring to Fig. 3, a kind of bolt that is provided with guide structure, comprise bolt body 1.
The head end of bolt body 1 is provided with instrument connecting head 2.Instrument connecting head 2 is flat head.Screw thread body 1 is provided with screw thread 3.Screw thread 3 has multi-turn.The threading path that screw thread 3 is positioned at 6 on bolt body 1 tail end circle screw thread 31 is positioned on first conical surface 4 outward.The drift angle A of first conical surface is 5 °.The screw thread radial inner end 32 that radial outer end is positioned at the screw thread on first conical surface 4 all is positioned on second conical surface 6.The screw thread radial inner end of all the other screw threads all is positioned at on the coaxial cylinder of second conical surface.The drift angle B of second conical surface and the drift angle A of first conical surface equate.
Claims (5)
1. a bolt that is provided with guide structure, comprise bolt body, and described bolt body is provided with some circle screw threads, it is characterized in that, the radial outer end that described screw thread is positioned at the screw thread on the bolt body tail end is positioned on the conical surface.
2. the bolt that is provided with guide structure according to claim 1, is characterized in that, is positioned at rare two circles that are threaded on the described conical surface.
3. the bolt that is provided with guide structure according to claim 1 and 2, is characterized in that, the drift angle of the described conical surface is A, 5 °≤A≤40 °.
4. the bolt that is provided with guide structure according to claim 3, is characterized in that, the radial inner end of all described screw threads all is positioned on same cylinder.
5. the bolt that is provided with guide structure according to claim 1 and 2, is characterized in that, the radial inner end of all described screw threads all is positioned on same cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202985009U CN203285816U (en) | 2013-05-29 | 2013-05-29 | Bolt provided with guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202985009U CN203285816U (en) | 2013-05-29 | 2013-05-29 | Bolt provided with guide structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285816U true CN203285816U (en) | 2013-11-13 |
Family
ID=49542181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202985009U Expired - Lifetime CN203285816U (en) | 2013-05-29 | 2013-05-29 | Bolt provided with guide structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317807A (en) * | 2015-11-27 | 2016-02-10 | 宁波敏达机电有限公司 | Tapered thread bolt and processing tooth plate thereof |
-
2013
- 2013-05-29 CN CN2013202985009U patent/CN203285816U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317807A (en) * | 2015-11-27 | 2016-02-10 | 宁波敏达机电有限公司 | Tapered thread bolt and processing tooth plate thereof |
| CN105317807B (en) * | 2015-11-27 | 2016-08-17 | 宁波敏达机电有限公司 | Band taper thread bolt and processing dental lamina thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315821 No. 98, Jiangnan Middle Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Minda Automobile Technology Co.,Ltd. Address before: 315821 No. 98, Jiangnan Middle Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO ZHENHAI MINDA ELECTROMECHANICAL CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |