CN202451575U - Bolt and nut locking set - Google Patents
Bolt and nut locking set Download PDFInfo
- Publication number
- CN202451575U CN202451575U CN2012200609730U CN201220060973U CN202451575U CN 202451575 U CN202451575 U CN 202451575U CN 2012200609730 U CN2012200609730 U CN 2012200609730U CN 201220060973 U CN201220060973 U CN 201220060973U CN 202451575 U CN202451575 U CN 202451575U
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- China
- Prior art keywords
- nut
- bolt
- external member
- conical surface
- taper hole
- Prior art date
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- Expired - Fee Related
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- 241001149930 Protura <class> Species 0.000 claims description 9
- 238000000034 method Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 241001061264 Astragalus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a bolt and nut locking set comprising a bolt (1) and a nut (3), wherein a device for applying additional frictional force to the nut (3) is also provided after the nut (3) is screwed up; the device for applying the additional frictional force comprises an inner conical hole (15) and an outer cone (4), wherein the inner conical hole is arranged at the end of the nut (1), which is provided with a screw thread (14), and the outer cone (4) is inlaid in the inner conical hole (15); and the bolt and nut locking set also comprise a main nut (7) and auxiliary nuts (8) superposed together. The bolt and nut locking set can be used for effectively preventing the nut from initially loosing and is simple in structure, easy to realize serialized and standardized production and convenient to use.
Description
Technical field
The utility model relates to the fastening piece of mechanical field, relates in particular to a kind of nut that prevents and produces loosening bolt and nut locking external member.
Background technique
As everyone knows, bolt is a most popular fastening piece in the mechanical engineering, in use need lock locking to the nut of connecting bolt of important structure spare and vibrations member sometimes.Usually the locking method of locking has the method for spring washer or band saw toothed washer, and the elastic force that promptly compresses generation through spring washer or zigzag fashion packing ring behind the nut screwing clamping prevents nut loosening.The packing ring method of blooming, promptly packing ring has inside and outside lug, wherein in lug be stuck on the bolt with outer lug and nut on lock locking.The castle nut method promptly circumferentially has a plurality of transverse grooves in the nut upper edge, on bolt, is provided with pinned hole, and nuts and bolt is locked connection through wearing pin.
In practical application; Use spring washer the most general, but the locking anti-loosing effect is relatively poor, for important connection; The general anti-loose method that adopts bloom packing ring or castle nut; But there are two problems in this method: the one, all can not between bolts and nuts, produce locking pretightening force, and so it is loosening to prevent that nut from continuing, and can not prevent effectively that nut is initially loosening; The 2nd, need reprocess bloom packing ring or corresponding nut, bolt, such as slotting on the nut or on bolt, drilling pin-and-hole etc.Nut is initially loosening might to make the structure that is connected lose efficacy, and causes mechanical accident or security incident, and at fluting on the nut or on bolt, drill pin-and-hole etc. and make troubles for on-the-spot use.At present, in the general part of standard, also there is not to occur other the more effective external member of loosening except that spring washer.
Summary of the invention
It is initially loosening that the technical problem that the utility model will solve provides a kind of nut that can effectively prevent, and simple in structure, easy to use, is easy to realize the bolt and nut locking external member of seriation, standardized production.
The technological scheme that its technical problem that solves the utility model adopts is, a kind of bolt and nut locking external member comprises screw bolt and nut, also is provided with a device that behind nut screwing clamping, applies additional friction power to nut.
Further, the threaded end of said bolt is provided with internal taper hole, and the device of said additional friction power is provided with the external cone with this internal taper hole tabling.
Further, internal taper hole has big end and small end, and this big end is positioned at the free end of bolt, in addition, and the tapering of internal taper hole≤5 °.
Further, external cone comprises the conical surface and conehead, and the conical surface has and the corresponding tapering of internal taper hole, and conehead has chamfer surface or the cambered surface that impacts usefulness.
Further, be provided with annular groove between the conical surface and the conehead.
Further, as the another kind of structure of additional friction power apparatus, also comprise mother nut and the stacked auxiliary nut that is installed together.
Further, an end of mother nut is provided with protruding circle, and protruding astragal has inner conical surface.
Further, the tapering of inner conical surface≤5 °.
Further, an end of auxiliary nut is provided with protruding circle, protruding circle be provided with corresponding internal thread and with the corresponding male cone (strobilus masculinus) of inner conical surface.
Further, axially offer at least three grooves that are uniformly distributed with at protruding circle.
The beneficial effect of a kind of bolt and nut locking external member of the utility model is following:
Owing to behind nut screwing clamping, also have a device that applies additional friction power to nut.This device comprises the internal taper hole that the threaded end of bolt is provided with, and with the external cone of this internal taper hole tabling.Behind nut screwing clamping, external cone is pressed the generation micro-deformation that can the bolt of the nut section of screwing radially be swollen in people's internal taper hole, and the internal and external screw thread of the section of screwing is radially compressed each other, increases the additional friction power of nut thus, effectively prevents the initial loosening of nut.Reuse for ease of the dismounting external cone, between the head of external cone and the conical surface, be provided with annular groove.
As a kind of distressed structure, the device that applies additional friction power to nut can also comprise mother nut and the stacked auxiliary nut that is installed together.Wherein, an end of mother nut is provided with the protruding circle of band inner conical surface, and an end of auxiliary nut also is provided with the protruding circle of corresponding band male cone (strobilus masculinus) with the mother nut inner conical surface, axially offers three grooves that are uniformly distributed with at least at the protruding circle of band male cone (strobilus masculinus).After mother nut is tightened; Tighten auxiliary nut again; This moment, the slot male cone (strobilus masculinus) of protruding circle of auxiliary nut front end screwed in the protruding circle inner conical surface of mother nut rear end; Under the inside and outside conical surface interacted, male cone (strobilus masculinus) produced micro-contraction deformation, and the internal thread of male cone (strobilus masculinus) is ridden on the outside thread of bolt tightly; Thereby producing very big additional friction power between the outside thread of the internal thread of the protruding circle of auxiliary nut and bolt and between the interior male cone (strobilus masculinus) of main and auxiliary nut, can effectively prevent the initial loosening of mother nut.
Be located at internal taper hole and external cone on the bolt, and tapering≤5 of main, as to attach the band conical surface between the nut protruding circle °, mutual chimeric back external cone self-locking in can guaranteeing.
The bolt and nut, the external cone that are used for the additional friction power apparatus, and main, to attach nut structure simple, easy to use, is easy to industrialized production, can form standard series external member product, user friendly installing and using.
[0004] description of drawings
The accompanying drawing that constitutes this specification part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof just are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is a kind of bolt and nut locking external member embodiment's 1 of the utility model a mounting structure schematic representation;
Fig. 2 is a bolt arrangement schematic representation among Fig. 1;
Fig. 3 is Fig. 1 China and foreign countries cone structure schematic representation;
Fig. 4 is a kind of bolt and nut locking external member embodiment's 2 of the utility model a mounting structure schematic representation;
Fig. 5 is a mother nut structural representation among Fig. 4; And
Fig. 6 is an auxiliary nut structural representation among Fig. 4.
Embodiment
Hereinafter is with reference to accompanying drawing and combine embodiment to specify the utility model.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Referring to figs. 1 through Fig. 3, present embodiment comprises bolt 1, nut 3, and wherein, an end of bolt 1 threaded 14 is provided with internal taper hole 15, and internal taper hole 15 has small end 11 and big end 13, and its big end 13 is positioned at the free end of bolt 1.Be to guarantee self-locking, the tapering of internal taper hole 15≤5 °; Chimeric in the internal taper hole 15 have an outer centrum 4, and outer centrum 4 is made up of the conical surface 42 and conehead 43; The conical surface 42 has and internal taper hole 15 corresponding taperings; Conehead 43 is provided with chamfer surface or the cambered surface of being convenient to beat; Between the conical surface 42 and conehead 43, offer a circular groove 44, the position of circular groove 44 is positioned at the end of the big end 13 of internal taper hole 15 during installation; The effect of circular groove 44 is that tool using takes out external cone 4 when being convenient to dismantle nut 3.
For guaranteeing the effect of swelling of outer centrum 4, during work the small end 11 of internal taper hole 15 and outside leave space 5 between the small end 41 of centrum 4.
Be to guarantee that nut 3 obtains auxiliary frictional force, between outer centrum 4 and the internal taper hole 15 chimeric section should and nut 3 and bolt 1 between the section of screwing be in overlapping or the position of overlapping.
With reference to Fig. 1; After nut 3 is tightened member 2, external cone 4 is beaten in the entering internal taper hole 15, because interior outer cone effect with hand hammer; The bolt 1 of nut 3 sections of screwing radially swells and produces micro-deformation; Thereby the internal and external screw thread of the section of screwing is radially compressed each other, increase the additional friction power of nut 1 thus, effectively prevent the initial loosening of nut.When needs dismounting nut, utilize the circular groove 44 on the external cone 4 can external cone 4 be taken out, reuse.
With reference to Fig. 4 to Fig. 6,, comprise that also mother nut 7 and the stacked auxiliary nut that is installed together 8 form as a kind of distressed structure of a kind of bolt and nut locking external member of the utility model.Wherein, an end of mother nut 7 is provided with protruding circle 71, and this protruding circle 71 has inner conical surface 72.For guaranteeing self-locking, the tapering of inner conical surface 72≤5 °.One end of auxiliary nut 8 is provided with protruding circle 81, this protruding circle 81 be provided with the internal thread identical with bolt 1 and with inner conical surface 72 corresponding male cone (strobilus masculinus)s 82.Produce contraction deformation when mounted for ease of protruding circle 81, axially offer three grooves that are uniformly distributed with 83 along protruding circle 81.The quantity of groove can confirm that the general diameter of bolt is big according to the size of the diameter of bolt, and its fluting bar number increases with regard to corresponding.
With reference to Fig. 4; After mother nut 7 is tightened member 2; Tighten auxiliary nut 8 again, this moment, the slot male cone (strobilus masculinus) 82 of protruding circle 81 of auxiliary nut 8 front ends screwed in the inner conical surface 72 of protruding circle 71 of mother nuts 7 rear ends, under the inside and outside conical surface 72,82 interacts; Male cone (strobilus masculinus) 82 produces micro-contraction deformation; The internal thread of male cone (strobilus masculinus) 82 is ridden on the outside thread of bolt 6 tightly, thereby between the outside thread of the internal thread of protruding circle 81 and bolt 6 and the inside and outside conical surface 72 of main and auxiliary nut 7,8, produce very big additional friction power between 82, can effectively prevent the initial loosening of mother nut 7.
From above embodiment's 1,2 description, can find out, a kind of bolt and nut locking external member of the utility model, through apply an auxiliary frictional force to nut, it is initial loosening effectively to avoid nut to take place, thereby guarantees the working stability of institute's connector element.Simultaneously, each design of part that constitutes auxiliary frictional force device is simple, easy to use, is easy to industrialized production, can form standard series external member product, the convenient use.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the concrete structure of the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a bolt and nut locking external member comprises bolt (1) and nut (3), it is characterized in that, also is provided with one and applies the device of additional friction power after nut (3) is tightened, for nut (3).
2. bolt and nut locking external member according to claim 1 is characterized in that an end of said bolt (1) threaded (14) is provided with internal taper hole (15), and the device of said additional friction power is provided with the external cone (4) with this internal taper hole (15) tabling.
3. bolt and nut according to claim 2 locking external member is characterized in that said internal taper hole (15) has big end (13), small end (11), and said big end (13) is positioned at the free end of bolt (1), tapering≤5 of said internal taper hole (15) °.
4. bolt and nut locking external member according to claim 2; It is characterized in that; Said external cone (4) comprises the conical surface (42) and conehead (43), and the said conical surface (42) has and the corresponding tapering of internal taper hole (15), and said conehead (43) has chamfer surface or the cambered surface that impacts usefulness.
5. bolt and nut locking external member according to claim 4 is characterized in that, is provided with annular groove (44) between the said conical surface (42) and the conehead (43).
6. bolt and nut locking external member according to claim 1 is characterized in that said additional friction power apparatus also comprises mother nut (7) and the stacked auxiliary nut that is installed together (8).
7. bolt and nut locking external member according to claim 6 is characterized in that an end of said mother nut (7) is provided with protruding circle (71), and said protruding circle (71) has inner conical surface (72).
8. bolt and nut according to claim 7 locking external member is characterized in that, tapering≤5 of said inner conical surface (72) °.
9. bolt and nut according to claim 6 locking external member is characterized in that an end of said auxiliary nut (8) is provided with protruding circle (81), said protruding circle (81) be provided with corresponding internal thread and with the corresponding male cone (strobilus masculinus) (82) of said inner conical surface (72).
10. bolt and nut according to claim 9 locking external member is characterized in that, axially offers at least three grooves that are uniformly distributed with (83) along said protruding circle (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200609730U CN202451575U (en) | 2012-02-23 | 2012-02-23 | Bolt and nut locking set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200609730U CN202451575U (en) | 2012-02-23 | 2012-02-23 | Bolt and nut locking set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451575U true CN202451575U (en) | 2012-09-26 |
Family
ID=46867441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200609730U Expired - Fee Related CN202451575U (en) | 2012-02-23 | 2012-02-23 | Bolt and nut locking set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451575U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246698A (en) * | 2015-08-06 | 2016-12-21 | 杨东佐 | A fastening connection component and structure, disassembly method, track structure, crankshaft linkage mechanism, bone connection device and bone connection method |
| CN106763942A (en) * | 2015-11-20 | 2017-05-31 | 镇江液压股份有限公司 | A kind of self-locking type safety valve |
| CN108386435A (en) * | 2018-04-24 | 2018-08-10 | 珠海机甲天下科技有限公司 | A kind of bolt and nut fastener |
| WO2019153926A1 (en) * | 2018-02-12 | 2019-08-15 | 林平 | Anti-loosening and anti-disengagement bolt and nut assembly and anti-loosening and disengagement bolt and anti-loosening and disengagement nut thereof |
| CN114135726A (en) * | 2021-12-28 | 2022-03-04 | 布劳宁(上海)液压气动有限公司 | An anti-loosening oil port connecting mechanism |
-
2012
- 2012-02-23 CN CN2012200609730U patent/CN202451575U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246698A (en) * | 2015-08-06 | 2016-12-21 | 杨东佐 | A fastening connection component and structure, disassembly method, track structure, crankshaft linkage mechanism, bone connection device and bone connection method |
| CN106438637A (en) * | 2015-08-06 | 2017-02-22 | 杨东佐 | Fastening connecting assembly and structure, disassembling method, track structure, crankshaft connecting rod mechanism, and bone connecting device and method |
| CN106763942A (en) * | 2015-11-20 | 2017-05-31 | 镇江液压股份有限公司 | A kind of self-locking type safety valve |
| WO2019153926A1 (en) * | 2018-02-12 | 2019-08-15 | 林平 | Anti-loosening and anti-disengagement bolt and nut assembly and anti-loosening and disengagement bolt and anti-loosening and disengagement nut thereof |
| CN108386435A (en) * | 2018-04-24 | 2018-08-10 | 珠海机甲天下科技有限公司 | A kind of bolt and nut fastener |
| CN114135726A (en) * | 2021-12-28 | 2022-03-04 | 布劳宁(上海)液压气动有限公司 | An anti-loosening oil port connecting mechanism |
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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: 20120926 Termination date: 20130223 |