CN201757119U - Twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened - Google Patents
Twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened Download PDFInfo
- Publication number
- CN201757119U CN201757119U CN2010202952139U CN201020295213U CN201757119U CN 201757119 U CN201757119 U CN 201757119U CN 2010202952139 U CN2010202952139 U CN 2010202952139U CN 201020295213 U CN201020295213 U CN 201020295213U CN 201757119 U CN201757119 U CN 201757119U
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- inner core
- loosening
- tubular shape
- shape inner
- type anti
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Abstract
A twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened consists of an inner sleeve and an outer sleeve. A polygonal nut head is arranged on the upper portion of the inner sleeve, a circular tubular inner core is arranged on the lower portion of the inner sleeve, internal threads are manufactured on the inner wall of the circular tubular inner core, and an annular withdrawing preventing groove is manufactured on the outer wall of the middle lower portion of the circular tubular inner core so as to form an annular danger section surface on the middle lower portion of the circular tubular inner core. An inner hole is manufactured on the outer sleeve, an inner chamfer reducing opening is manufactured at the lower end of the inner hole, the aperture of a small end of the inner chamfer reducing opening is larger than the outer diameters of the internal threads and smaller than the outer diameter of the circular tubular inner core, and the circular tubular inner core of the lower portion of the inner sleeve mounted in the inner hole on the outer sleeve in a pressing manner is in clearance fit with the inner hole on the outer sleeve. The twisting rivet type anti-loosening withdrawing-preventive nut integrates multiple functions such as loosening prevention, withdrawing prevention, burglar prevention and retightening, is high in practicality and wide in applicable range, is suitable for fastening, loosening prevention and burglar prevention of power iron towers, high-speed railways, communication towers, steel structures, highway guardrails and urban public facilities, is particularly suitable for retightening in application occasions of high-frequency fasteners repeatedly vibrated, eliminates loosening gaps, and improves fastening effect.
Description
Technical field
The utility model belongs to machanical fastener manufacturing technology field, is specifically related to a kind of riveting type anti-loosening anti-dumping rescrewing nut of turning round.
Background technique
Various lock nuts in the prior art, binding nut, locking pad, spring pad etc., do not possess auto-lock function truly, because their anti-loose structure all is and tight principle, be that two caps are to the top friction self-locking, if fastened member self produces loosening, lost between two caps and tight stress, just can not play locking having acted on.
It with the immediate prior art of the utility model " the antitheft solid split nut of turn-break type " utility model patent (ZL200720031492.6), though have very reliable antitheft locking function, but structure relative complex, processing is difficulty relatively, particularly do not tighten up function, can not adapt to the fastener application occasion that high frequencies such as electric power transmission iron tower shake repeatedly and tighten up use.
The model utility content
The technical problem that the utility model solves: design a kind of riveting type anti-loosening anti-dumping rescrewing nut of turning round, be skillfully constructed, simple in structure, manufacturing procedure is few, integrate locking, anti-dumping, antitheft, tighten up multiple function, practical, adapt to widely, be applicable to the fastening, locking and antitheft of electric power tower, high-speed railway, communications tower, steel structure, freeway guardrail and urban public utilities.Especially the fastener application occasion that suitable high frequency shakes repeatedly tightens up, and eliminates loosening gap, improves fastening effect.
The technical solution adopted in the utility model: a kind of riveting type anti-loosening anti-dumping rescrewing nut of turning round comprises interior cover (1) and overcoat (2).The top of cover (1) is polygonal nut head (3) in described, the bottom of interior cover (1) is tubular shape inner core (4), be shaped on internal thread (5) on the inwall of tubular shape inner core (4), be shaped on ring-type anti-back slot (6) on the outer wall of tubular shape inner core (4) middle and lower part, make tubular shape inner core (4) middle and lower part form the dangerouse cross-section (7) of a ring-type; Be shaped on endoporus (9) on the overcoat (2), the lower end of endoporus (9) is shaped on interior chamfering reducing (10), the internal diameter of interior chamfering reducing (10) portlet is greater than the big footpath of internal thread (5), external diameter less than tubular shape inner core (4), in the tubular shape inner core (4) of cover (1) bottom be fitted in the endoporus (9) on the overcoat (2), and be interference fit between the two.
Described anti-back slot (6) is for containing oil groove.Described polygonal nut head (3) is a regular hexagon.The lower end of described tubular shape inner core (4) has outer chamfering (8).The profile of described overcoat (2) is cylindrical.The profile of described overcoat (2) is a regular hexagon.
Advantage that compared with the prior art the utility model has and effect:
1. profile adopts GB fastening piece standard design, integrates with GB, and is practical, adapts to wide.
2. install fastening need not special tool, universal rapid makes things convenient for the user.
3. can use by single cap, need not design again, reduced the cost of fastening piece bolt.
4. be skillfully constructed, simple in structure, can independent self-locking, coupling mechanism force is strong.
5. have antidetonation pine, anti-dumping, anti-theft feature.Be applicable to the fastening, locking and antitheft of electric power tower, high-speed railway, communications tower, steel structure, freeway guardrail and urban public utilities.。
6. have and tighten up fastening once more lock function.Especially the fastener application occasion that suitable high frequency shakes repeatedly tightens up, and eliminates loosening gap, improves fastening effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the utility model user mode structural representation.
Embodiment
Below in conjunction with accompanying drawing 1,2 a kind of embodiment of the present utility model is described.
A kind of riveting type anti-loosening anti-dumping rescrewing nut of turning round, cover 1 and overcoat 2 in comprising, the top of interior cover 1 is regular hexagon nut head 3, the bottom of interior cover 1 is a tubular shape inner core 4, be shaped on internal thread 5 on the inwall of tubular shape inner core 4, be shaped on ring-type anti-back slot 6 on the tubular shape inner core 4 middle and lower part outer walls, make tubular shape inner core 4 middle and lower parts form the dangerouse cross-section 7 of a ring-type.The profile of overcoat 2 is a regular hexagon, be shaped on endoporus 9 on the overcoat 2, the lower end of endoporus 9 is shaped on interior chamfering reducing 10, the internal diameter of interior chamfering reducing 10 portlet is greater than the big footpath of internal thread 5, external diameter less than tubular shape inner core 4, in the tubular shape inner core 4 of cover 1 bottom be fitted in the endoporus 9 on the overcoat 2, and be interference fit between the two.Described anti-back slot 6 is filled with lubricant grease for containing oil groove in it, be used for the lubricated of tubular shape inner core 4 and endoporus 9 surface of contact, helps tubular shape inner core 4 and is pressed into endoporus 9, and can reduce the resistance of tubular shape inner core 4 generation plastic deformations.The lower end of tubular shape inner core 4 has outer chamfering 8, and the lower end of being convenient to tubular shape inner core 4 when interference is assembled easily is pressed into the endoporus 9 on the overcoat 2.
During use, the utility model is enclosed within on the bolt 12, overcoat 2 is positioned at the fastening end face of member 11.Turn polygonal nut head 3 and overcoat 2 synchronously with common wrench, the tubular shape inner core 4 of interior cover 1 bottom constantly is subjected to the revolving of interior chamfering reducing 10 of overcoat 2 lower ends and grinds extruding, tubular shape inner core 4 begins to produce plastic deformation at this moment, cover 1 " is riveted tightly " on the outside thread of bolt 12 gradually in making, and reaches solid shock-proof check effect.Continuation turns polygonal nut head 3 and overcoat 2 with spanner, and making polygonal nut head 3 and overcoat 2 draw close riveting is one, and fastened member 11 tightenings are put in place, promptly installs.
When needs tighten up operation, can turn polygonal nut head 3 and overcoat 2 fastening getting final product synchronously with common wrench once more.As the external force violence damage, when the robber dismantles, the tubular shape inner core 4 of interior cover 1 bottom is broken fracture from dangerouse cross-section 7 and is separated, make tubular shape inner core 4 divided into two parts, its Lower Half is hidden in the endoporus 9 on the overcoat 2 deeply, if continue to turn overcoat 2 this moment the interference fit between tubular shape inner core 4 and the overcoat 2 is disappeared with spanner, and because the interior chamfering reducing 10 portlet internal diameters on the overcoat 2 are less than the external diameter of tubular shape inner core 4, overcoat 2 also can only rotate around tubular shape inner core 4, can't unload down at all, thereby reach solid retaining, antitheft purpose.
Claims (6)
1. turn round riveting type anti-loosening anti-dumping rescrewing nut for one kind, comprise interior cover (1) and overcoat (2), it is characterized in that: the top of cover (1) is polygonal nut head (3) in described, the bottom of interior cover (1) is tubular shape inner core (4), be shaped on internal thread (5) on the inwall of tubular shape inner core (4), be shaped on ring-type anti-back slot (6) on the outer wall of tubular shape inner core (4) middle and lower part, make tubular shape inner core (4) middle and lower part form the dangerouse cross-section (7) of a ring-type; Be shaped on endoporus (9) on the overcoat (2), the lower end of endoporus (9) is shaped on interior chamfering reducing (10), the internal diameter of interior chamfering reducing (10) portlet is greater than the big footpath of internal thread (5), external diameter less than tubular shape inner core (4), in the tubular shape inner core (4) of cover (1) bottom be fitted in the endoporus (9) on the overcoat (2), and be interference fit between the two.
2. the riveting type anti-loosening anti-dumping rescrewing nut of turning round according to claim 1, it is characterized in that: described anti-back slot (6) is for containing oil groove.
3. the riveting type anti-loosening anti-dumping rescrewing nut of turning round according to claim 1, it is characterized in that: described polygonal nut head (3) is a regular hexagon.
4. the riveting type anti-loosening anti-dumping rescrewing nut of turning round according to claim 1, it is characterized in that: the lower end of described tubular shape inner core (4) has outer chamfering (8).
5. according to claim 1 or 2 or the 3 or 4 described riveting type anti-loosening anti-dumping rescrewing nuts of turning round, it is characterized in that: the profile of described overcoat (2) is cylindrical.
6. according to claim 1 or 2 or the 3 or 4 described riveting type anti-loosening anti-dumping rescrewing nuts of turning round, it is characterized in that: the profile of described overcoat (2) is a regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202952139U CN201757119U (en) | 2010-08-13 | 2010-08-13 | Twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202952139U CN201757119U (en) | 2010-08-13 | 2010-08-13 | Twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201757119U true CN201757119U (en) | 2011-03-09 |
Family
ID=43644389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202952139U Expired - Fee Related CN201757119U (en) | 2010-08-13 | 2010-08-13 | Twisting rivet type anti-loosening withdrawing-preventive nut capable of being retightened |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201757119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922498A (en) * | 2010-08-13 | 2010-12-22 | 任宝玉 | Rotary riveting type anti-loosening, anti-withdrawal and re-tightening nut |
-
2010
- 2010-08-13 CN CN2010202952139U patent/CN201757119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922498A (en) * | 2010-08-13 | 2010-12-22 | 任宝玉 | Rotary riveting type anti-loosening, anti-withdrawal and re-tightening nut |
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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: 20110309 Termination date: 20120813 |