CN2818888Y - Self-locking convex bolt threaded fastener against loosening - Google Patents
Self-locking convex bolt threaded fastener against loosening Download PDFInfo
- Publication number
- CN2818888Y CN2818888Y CN 200520115470 CN200520115470U CN2818888Y CN 2818888 Y CN2818888 Y CN 2818888Y CN 200520115470 CN200520115470 CN 200520115470 CN 200520115470 U CN200520115470 U CN 200520115470U CN 2818888 Y CN2818888 Y CN 2818888Y
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- CN
- China
- Prior art keywords
- groove
- threaded member
- concave groove
- protruding bolt
- bolt
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- Expired - Fee Related
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Abstract
The utility model relates to a self-locking anti-looseness threaded fastener with a convex bolt, which is composed of an outer threaded member, an inner threaded member and a convex bolt, wherein the threaded surface in an axial direction of the outer threaded member and the inner threaded member is provided with concave grooves, one concave groove which has a narrow bottom width opening in which a sinus is arranged is a main concave groove, the other concave groove is a secondary concave groove; when the fastener is tightly screwed, the openings of the main concave groove and the secondary concave groove are combined and aligned to form a groove hole, the convex bolt which adapts to the groove hole and has a flange is inserted into and locked by the concave grooves to stop the mutual rotation between the inner threaded member and the outer threaded member, and thus, the perfect goal of anti-looseness is achieved. When repeatedly used under various bad conditions, the utility model can also remain the perfect effect of anti-looseness, and is especially suitable for use in fasteners on large machines which has strong impact force, frequent vibration, large change in temperature difference, high safety requirement and requirement for regular disassembly at the time of operation.
Description
Affiliated technical field
The utility model relates to a kind of threaded fastener, is meant the protruding bolt checknut of a kind of self-locking fastening piece especially.
Background technique
Machine often has inner thread piece, self the rotating mutually between external thread piece that causes threaded fasteners such as screw, nut because of factors such as vibrations or temperature variation in use, causes the phenomenon of part loose or dislocation.Existing anti-loose threaded fastener kind at this problem is a lot, their each have their own action range also all have certain narrow limitation simultaneously, and the anti-loose effect that has is limited, the complex process that has, not ability height (low) temperature that can not use repeatedly, have that has.Along with the development of society, the manufacturing precision of machinery equipment is more and more higher, and is also more and more tighter to safety requirement, and existing anti-loose threaded fastener can not be satisfied the demand fully.
Summary of the invention
The utility model provide a kind of utilize can self-locking protruding bolt stop the anti-loose threaded fastener that self rotates mutually between threaded fastener, be particularly suitable for that impact force is strong when operation, vibrations are frequent, difference variation is big, safety requirement is high, need the large-scale machine of regular dismounting to tighten parts to use.
The technological scheme that the utility model adopted is: the protruding bolt checknut of a kind of self-locking fastening piece, it is by external thread piece, inner thread piece and protruding bolt are formed, be characterized in that external thread piece and inner thread piece have groove at flank of thread vertically, wherein notch to be arranged in narrow be main groove to a groove bottom width mouth, another groove is a time groove, the two groove parallel ports alignment of fastening back forms a slotted eye, but the protruding bolt that inserted-shape size and slotted eye adapt, its length and main groove adapt, notch is sealed in there are flange energy and main groove in protruding bolt top, the protruding bolt that inserts blocks in the groove prevention, mutual rotation between external thread piece reaches anti-loose purpose.
Described protruding bolt open-topped separated into two parts can be inwardly by closing, and the flange that can make protruding bolt notch in the main groove takes off lock and extracts.
Major advantage of the present utility model is: use repeatedly still can remain intact anti-loose effect under various mal-conditions.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model embodiment 1
Fig. 2 is the utility model embodiment 2
Fig. 3 is the protruding bolt enlarged view of the utility model embodiment 1 usefulness
Fig. 4 is the bolt perspective view with main groove of the utility model embodiment 1 usefulness
Fig. 5 is the protruding bolt enlarged view of the utility model embodiment 2 usefulness
Fig. 6 is the nut with main groove of the utility model embodiment 2 usefulness
1. main grooves among the figure, 2, inferior groove, 3, protruding bolt, 4, flange, 5 notches.
Embodiment
Implementation column 1: as Fig. 1, Fig. 3, shown in Figure 4, when external thread piece bolt and inner thread piece screw are fastening, after the bolt that has a main groove (1) screws tight with the screw that has time groove (2), omit the inching degree of tightness, make the alignment of primary and secondary groove parallel port form a slotted eye, inserted-shape and the protruding bolt (3) that size adapts with slotted eye, length and main groove adapt, notch (5) is sealed in the flange (4) on protruding bolt top and the main groove, protruding bolt can not drop out because of external force effects such as vibrations, impacts, bolt and screw can not rotate mutually, reach anti-loose purpose.When needing the dismounting screw, available sharp mouth vice makes flange throw off from notch by closing protruding bolt open top end, just can extract protruding bolt rotation dismounting screw.
Implementation column 2: as Fig. 2, Fig. 5, shown in Figure 6, when external thread piece bolt and inner thread piece nut are fastening, after the nut that has a main groove (1) screws tight with the bolt that has time groove (2), omit the inching degree of tightness, make the alignment of primary and secondary groove parallel port form a slotted eye, inserted-shape and the protruding bolt (3) that size adapts with slotted eye, length and main groove adapt, notch (5) is sealed in flange of protruding bolt (4) and the main groove, protruding bolt can not drop out because of external force effects such as vibrations, impacts, screw bolt and nut can not rotate mutually, reaches anti-loose purpose.When needing the dismounting screw, available screw-driver makes flange throw off from notch by closing protruding bolt open top end, just can extract protruding bolt rotation dismounting screw.
Claims (2)
1, a kind of protruding bolt checknut fastening piece, comprise external thread piece, inner thread piece and protruding bolt, it is characterized in that external thread piece and inner thread piece have groove at flank of thread vertically, wherein notch to be arranged in narrow be main groove to a groove bottom width mouth, another groove is a time groove, and the two groove parallel ports alignment of fastening back forms a slotted eye.
2, according to right 1 described a kind of protruding bolt checknut fastening piece, it is characterized in that protruding bolt shape size adapts with slotted eye, length and main groove adapt, the open-topped flanged pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115470 CN2818888Y (en) | 2005-07-16 | 2005-07-16 | Self-locking convex bolt threaded fastener against loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520115470 CN2818888Y (en) | 2005-07-16 | 2005-07-16 | Self-locking convex bolt threaded fastener against loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818888Y true CN2818888Y (en) | 2006-09-20 |
Family
ID=37004945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520115470 Expired - Fee Related CN2818888Y (en) | 2005-07-16 | 2005-07-16 | Self-locking convex bolt threaded fastener against loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818888Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718295B (en) * | 2009-12-29 | 2011-05-04 | 东方电气集团东方汽轮机有限公司 | Lock threaded fastener and manufacturing tool thereof |
| CN103016501A (en) * | 2011-09-28 | 2013-04-03 | 陕西坚瑞消防股份有限公司 | Rotation stop locking device and aerosol fire extinguishing apparatus |
| CN112303098A (en) * | 2020-11-17 | 2021-02-02 | 崔路晋 | Anti-loosening bolt fastener |
| CN113586576A (en) * | 2021-09-02 | 2021-11-02 | 潍坊职业学院 | Novel anti-theft anti-loose bolt and nut set |
-
2005
- 2005-07-16 CN CN 200520115470 patent/CN2818888Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718295B (en) * | 2009-12-29 | 2011-05-04 | 东方电气集团东方汽轮机有限公司 | Lock threaded fastener and manufacturing tool thereof |
| CN103016501A (en) * | 2011-09-28 | 2013-04-03 | 陕西坚瑞消防股份有限公司 | Rotation stop locking device and aerosol fire extinguishing apparatus |
| CN112303098A (en) * | 2020-11-17 | 2021-02-02 | 崔路晋 | Anti-loosening bolt fastener |
| CN113586576A (en) * | 2021-09-02 | 2021-11-02 | 潍坊职业学院 | Novel anti-theft anti-loose bolt and nut set |
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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: 20060920 |