CN203717577U - Double-thread self-locking bolt - Google Patents
Double-thread self-locking bolt Download PDFInfo
- Publication number
- CN203717577U CN203717577U CN201420125099.3U CN201420125099U CN203717577U CN 203717577 U CN203717577 U CN 203717577U CN 201420125099 U CN201420125099 U CN 201420125099U CN 203717577 U CN203717577 U CN 203717577U
- Authority
- CN
- China
- Prior art keywords
- section
- extending axially
- self
- diameter
- double thread
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a double-thread self-locking bolt which comprises a first axial extending section (1) with threads, a connecting section (2), a shaft shoulder (3) and a second axial extending section (4) with threads, the diameter of an arc section of the connecting section (2) is not larger than the diameter of the first axial extending section (1), 16-18 friction teeth (301) are evenly arranged on the face, close to the second axial extending section (4), of the shaft shoulder (3) in the circumferential direction, the direction of the friction teeth (301) is consistent with the locking screwing direction of the threads of the second axial extending section (4), and a cross groove (5) is formed in the end face of the second axial extending section (4). The double threads with a self-locking ability are adopted, work efficiency is improved, high connection reliability is guaranteed, and service life is prolonged.
Description
Technical field
The utility model relates to a kind of stud bolt, is specifically related to a kind of double thread screw self-locking screw.
Background technique
Stud bolt is one of a kind of the most frequently used link, and its Main Function is that two connected pieces are fastenedly connected.Existing stud bolt is only provided with screw thread at two and anti-skid structure is not set, and therefore in use easily causes loosening and causes damaging and reduce working life.If it is anti-skidding to adopt packing ring to carry out, not only increases assembly process and reduce working efficiency, and increase cost.
Model utility content
The utility model, for prior art deficiency, provides a kind of double thread screw self-locking screw simple in structure, easy to use, can complete comparatively easily the work that link is fastenedly connected, and has improved efficiency; Because its shaft shoulder with energy self-locking can complete locking in fastening process, improve the reliability connecting, increase the service life.
For solving the problems of the technologies described above, the utility model provides a kind of double thread screw self-locking screw, comprises screwed first section of extending axially (1), linkage section (2), the shaft shoulder (3) and screwed second section of extending axially (4); Described linkage section (2) arc section diameter is no more than the diameter of first section of extending axially (1); The described shaft shoulder (3) is circumferentially evenly provided with some friction teeth (301) near the one side of second section of extending axially (4); Described friction teeth (301) is consistent with the second section of extending axially screw-threaded coupling rotation direction.
Wherein, the end face of described second section of extending axially (4) is provided with cross recess (5).
Wherein, the number of teeth of described friction teeth (301) is 16～18.
Wherein, the diameter of described second section of extending axially (4) is less than the internal diameter of friction teeth (301).
Wherein, described bolt adopts disposable casting.
Compared with prior art, the utility model adopts the stud bolt with self-lock ability, increases work efficiency, and can ensure higher connection reliability, has improved working life.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model double thread screw self-locking screw.
Fig. 2 is the plan view of the utility model double thread screw self-locking screw.
Fig. 3 is the sectional view of the utility model double thread screw self-locking screw.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.
The structure of the utility model double thread screw self-locking screw as Figure 1-3, comprises screwed the first section of extending axially 1, linkage section 2, the shaft shoulder 3 and screwed the second section of extending axially 4; Described linkage section 2 arc section diameters are no more than the diameter of the first section of extending axially 1; The described shaft shoulder 3 is circumferentially evenly provided with some friction teeth 301 near the one side of the second section of extending axially 4; Described friction teeth 301 is consistent with the second section of extending axially screw-threaded coupling rotation direction.
In the present embodiment, the end face of described second section of extending axially (4) is provided with cross recess (5), and conveniently under specific operating mode, screw-driver easy to use carries out being fastenedly connected of bolt.
In the present embodiment, the number of teeth of described friction teeth (301) is 16～18, thereby the friction teeth being evenly distributed on the shaft shoulder can make the frictional force on bolt and connected piece surface strengthen raising join strength.
In the present embodiment, the diameter of described second section of extending axially (4) is less than the internal diameter of friction teeth (301), is convenient to bolt through being connected workpiece, is unlikely to cause interference.
In the present embodiment, described bolt adopts disposable cast molding technology, has simplified the processing of part, adopts in addition integrally casting to strengthen the intensity of bolt, makes it have higher intensity, extends the working life of bolt.
These are only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a double thread screw self-locking screw, is characterized in that: comprise screwed first section of extending axially (1), linkage section (2), the shaft shoulder (3) and screwed second section of extending axially (4); Described linkage section (2) arc section diameter is no more than the diameter of first section of extending axially (1); The described shaft shoulder (3) is circumferentially evenly provided with some friction teeth (301) near the one side of second section of extending axially (4); Described friction teeth (301) is consistent with the second section of extending axially screw-threaded coupling rotation direction.
2. double thread screw self-locking screw according to claim 1, is characterized in that: the end face of described second section of extending axially (4) is provided with cross recess (5).
3. double thread screw self-locking screw according to claim 1, is characterized in that: the number of teeth of described friction teeth (301) is 16～18.
4. double thread screw self-locking screw according to claim 1, is characterized in that: the diameter of described second section of extending axially (4) is less than the internal diameter of friction teeth (301).
5. double thread screw self-locking screw according to claim 1, is characterized in that: described bolt adopts disposable casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125099.3U CN203717577U (en) | 2014-03-19 | 2014-03-19 | Double-thread self-locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125099.3U CN203717577U (en) | 2014-03-19 | 2014-03-19 | Double-thread self-locking bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717577U true CN203717577U (en) | 2014-07-16 |
Family
ID=51156735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125099.3U Expired - Fee Related CN203717577U (en) | 2014-03-19 | 2014-03-19 | Double-thread self-locking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717577U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818610A (en) * | 2016-06-21 | 2016-08-03 | 陈铭鸿 | Strengthening part for automobile tire |
| CN108691871A (en) * | 2018-06-11 | 2018-10-23 | 海盐县久力紧固件有限公司 | A kind of novel belt shoulder studs |
| CN110094404A (en) * | 2019-05-30 | 2019-08-06 | 浙江洪扬汽车零部件有限公司 | A kind of automotive hub hexagon socket head cap screw |
| WO2023124758A1 (en) * | 2021-12-30 | 2023-07-06 | 博尔豪夫(中国)紧固件有限公司 | Rivet stud |
-
2014
- 2014-03-19 CN CN201420125099.3U patent/CN203717577U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818610A (en) * | 2016-06-21 | 2016-08-03 | 陈铭鸿 | Strengthening part for automobile tire |
| CN108691871A (en) * | 2018-06-11 | 2018-10-23 | 海盐县久力紧固件有限公司 | A kind of novel belt shoulder studs |
| CN110094404A (en) * | 2019-05-30 | 2019-08-06 | 浙江洪扬汽车零部件有限公司 | A kind of automotive hub hexagon socket head cap screw |
| WO2023124758A1 (en) * | 2021-12-30 | 2023-07-06 | 博尔豪夫(中国)紧固件有限公司 | Rivet stud |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20180319 |