CN2830754Y - Improved structure of threaded fastener - Google Patents
Improved structure of threaded fastener Download PDFInfo
- Publication number
- CN2830754Y CN2830754Y CN 200520064195 CN200520064195U CN2830754Y CN 2830754 Y CN2830754 Y CN 2830754Y CN 200520064195 CN200520064195 CN 200520064195 CN 200520064195 U CN200520064195 U CN 200520064195U CN 2830754 Y CN2830754 Y CN 2830754Y
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- CN
- China
- Prior art keywords
- threaded fastener
- improved structure
- thread
- tooth type
- angle
- 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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Abstract
The utility model relates to an improved structure of a threaded fastener. The tooth type of the thread of the improved structure of the threaded fastener is an isosceles triangle. The tooth type angle of the tooth type is 50 DEG; the included angles theta 1 and theta 2 of two edges of the tooth type angle and a central line of the thread are 30 DEG and 20 DEG. Due to the fact that the included angles of two edges of the tooth type angle and the central line of the thread are not same; compared with the connection of the existing threaded fastener, the connection of the improved structure of threaded fastener is tighter, and is not easy to get loose; therefore, glue does not needed to be spotted during processing, which simplifies the production working procedure. The improved structure of a threaded fastener has simple structure, visible effect, and simplifies production working procedure, so the production cost is saved.
Description
Technical field:
The utility model relates to the threaded fastener technology field, refers in particular to the tightr and simple threaded fastener structure improvement of manufacturing procedure of a kind of connection.
Background technique:
Threaded fastener is used very extensive in daily life and industry generation, particularly screw, bolt.In the course of working, it after molding screw thread, generally also need through surface heat handle, two operations of some glue, some glue be actually for allow threaded fastener more convenient in use, be connected with nut or other objects more firmly.Form a lot of screw threads on the threaded fastener, two limits at the tooth form angle of screw thread are the same with the corner dimension of screw thread center line, and two moment that the limit is suffered sizes are the same, so be difficult for closely being connected with other objects, are easy to get loose.A lot of manufacturers are in order to allow firm of screw thread be connected tightr with other objects, also update the structure of threaded fastener, for example the patent No. is disclosed a kind of anti-loose screw in 00239217.8 the patent document, the bottom center that it is included in hold-doun nut is provided with screw rod, screw surface is around thread, and a plurality of cone shape cone angles are surrounded on the bottom plane of hold-doun nut and the junction point of screw rod radially; This cone angle is provided with conical point and recessed corner cut; Recessed corner cut is sentenced suitable angle inscribe to conical point from the corner post edge of cone angle.Also there is certain narrow limitation in this structure, and promptly it can only be applied on the screw, be used on the bolt then not all right, and it processing in to put glue too, manufacturing procedure and no change.
Summary of the invention:
The purpose of this utility model provides at the deficiencies in the prior art that a kind of connection more closely, more is difficult for getting loose, manufacturing procedure is simplified, can be applicable to the threaded fastener structure improvement on screw, the bolt etc.
For achieving the above object, the utility model adopts following technological scheme: the tooth form of its screw thread is the triangle of isosceles not.
The tooth form angle of described tooth form is 50 °, and two limits at tooth form angle and angle theta 1, the θ 2 of thread center's line are respectively 30 °, 20 °.
Because two limits at tooth form angle are different greatly with the angle of thread center's line, than existing threaded fastener connect in use tightr, more be difficult for getting loose, adding man-hour, no longer need a glue, simplified production process.
The utility model is simple in structure, effect is remarkable, has simplified production process, thereby has saved cost of production.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
See accompanying drawing 1, the tooth form of screw thread 10 is the triangle of isosceles not.
The tooth form angle 20 of tooth form is generally 50 °, two limits at tooth form of the present utility model angle 20 and the angle theta 1 of thread center's line 30, θ 2 is respectively 30 °, 20 °, because two limits at tooth form angle 20 are different greatly with the angle of thread center's line 30, when being used with nut etc., the tooth form angle of nut internal thread still is an isosceles triangle, so both can cooperate more closely, be not easy to get loose, so adopt the threaded fastener of this structure to connect tightr in use than existing threaded fastener, more be difficult for getting loose, thereby adding man-hour, no longer need a glue, simplified production process.
The utility model structure can be applicable to be used as screw bolt and nut on the threaded fasteners such as screw, bolt, nut, then can mold the outside thread of said structure on bolt, and mold the internal thread that matches on nut.
The utility model is simple in structure, effect is remarkable, has simplified production process, thereby has saved cost of production.
Certainly, the embodiment of the above, it is preferred embodiments of the present utility model, be not to limit the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Claims (2)
1, threaded fastener structure improvement is characterized in that: the tooth form of screw thread (10) is the triangle of isosceles not.
2, threaded fastener structure improvement according to claim 1 is characterized in that: the tooth form angle (20) of tooth form is 50 °, and two limits of tooth form angle (20) and the angle (θ 1, θ 2) of thread center's line (30) are respectively 30 °, 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064195 CN2830754Y (en) | 2005-09-09 | 2005-09-09 | Improved structure of threaded fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064195 CN2830754Y (en) | 2005-09-09 | 2005-09-09 | Improved structure of threaded fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830754Y true CN2830754Y (en) | 2006-10-25 |
Family
ID=37135681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520064195 Expired - Fee Related CN2830754Y (en) | 2005-09-09 | 2005-09-09 | Improved structure of threaded fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830754Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327468A (en) * | 2017-06-30 | 2017-11-07 | 共享装备股份有限公司 | Self-locking thread and junction of the edges of two sheets of paper connection method |
| WO2019192570A1 (en) * | 2018-04-07 | 2019-10-10 | 玉环胜友工具有限公司 | Connection structure having dumbbell-shaped bidirectional tapered external thread and traditional thread having small left taper and large right taper |
-
2005
- 2005-09-09 CN CN 200520064195 patent/CN2830754Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327468A (en) * | 2017-06-30 | 2017-11-07 | 共享装备股份有限公司 | Self-locking thread and junction of the edges of two sheets of paper connection method |
| WO2019192570A1 (en) * | 2018-04-07 | 2019-10-10 | 玉环胜友工具有限公司 | Connection structure having dumbbell-shaped bidirectional tapered external thread and traditional thread having small left taper and large right taper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |