CN203835922U - Reversely-buckled type self-locking anti-loose fastener for high-speed rail electrified catenary - Google Patents
Reversely-buckled type self-locking anti-loose fastener for high-speed rail electrified catenary Download PDFInfo
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- CN203835922U CN203835922U CN201420202497.0U CN201420202497U CN203835922U CN 203835922 U CN203835922 U CN 203835922U CN 201420202497 U CN201420202497 U CN 201420202497U CN 203835922 U CN203835922 U CN 203835922U
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- nut
- locking
- ratchet
- locking nut
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Abstract
The utility model discloses a reversely-buckled type self-locking anti-loose fastener for a high-speed rail electrified catenary in the traffic field. The fastener comprises a main nut and a locking nut, the main nut and the locking nut are in threaded connection with a main bolt, and the rotating direction of the main nut is opposite to that of the locking nut. The fastener is characterized in that the screw pitch of the main nut is larger than that of the locking nut, a circular truncated cone is arranged on the end face, close to the main nut, of the locking nut, and ratchets are evenly machined on the circular truncated cone. The fastener is simple in structure, low in cost, reliable in mounting, convenient to mount and dismount and capable of being used for the high-speed rail electrified catenary.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly a kind of self-locking anti-loosing fastening piece.
Background technique
The fastening piece using on China Express Railway electrified contacting nets, it is mainly the technology of Introduced From Abroad, generally before screwing, installation coats a kind of special viscose glue at the bolt connecting, the helical thread portion of nut, this viscose glue will be from the U.S. and Japanese import, price is very expensive, uses and preserve all limited restrictions.Importantly use pretty troublesomely, workpiece will thoroughly clean up before gluing, finish-drying, and rainy day, large greasy weather, large sun sky, blow day, all inconvenience constructions in freezing day.After having constructed, can not come into operation immediately, after viscose glue solidifies thoroughly, just can bear vibration force.Because contact net will be adjusted the height of wire and track sometimes, fastening piece must unclamp and tighten.This screw that has been coated with viscose glue is generally difficult to unclamp with spanner, sometimes must be sawed-off.
Model utility content
The purpose of this utility model is to provide a kind of high ferro electrified contacting nets back-buckling type self-locking anti-loosing fastening piece, and simple in structure, cost is lower, reliable lock, and easy installation and removal,
The purpose of this utility model is achieved in that a kind of high ferro electrified contacting nets back-buckling type self-locking anti-loosing fastening piece, comprise the mother nut and the locking nut that are threaded togather with kingbolt, described mother nut is contrary with locking nut rotation direction, the pitch of described mother nut is greater than the pitch of locking nut, described locking nut is provided with round platform near the end face of mother nut, is evenly processed with ratchet on round platform.
When the utility model uses, mother nut and locking nut are tightened rear common formation " left-hand thread " relation separately, the rotation direction that retreats that is mother nut is just the rotation direction of advancing of locking nut, and after two nuts are tightened respectively, ratchet on locking nut end face penetrates in the jointing end face of mother nut, crown is met the direction of unclamping facing to mother nut, oppositely loosening (even the in the situation that of the judder) when locking nut has stoped mother nut work; After locking nut counter-tightened, as likely loosening while working, can only be rotated in the forward, and when forward rotation, ratchet point has propped up again mother nut and has forced mother nut forward together, but mother nut forward is tightened, therefore mother nut and the locking nut work that is firmly connected with mother nut by ratchet time are can not be rotated in the forward and become flexible under nature; But when dismounting is rotated in the forward the application of force to locking nut by force because of spanner, when this power reaches certain when large, ratchet has had resiliently deformable, locking nut starts to retreat, so the power of supporting of ratchet reduces, spanner continues the application of force, and locking nut retreats more, continue again, locking nut has just unclamped, and this process is for artificially turning with spanner brute force, and when work, under nature, in no way this situation occurs, be that mechanism can natural release, therefore mechanism is in use safe and reliable.Compared with prior art, the beneficial effects of the utility model are, the utility model is simple in structure, with low cost, reliable lock, easy installation and removal.The utility model can be used in high ferro electrified contacting nets.
As further restriction of the present utility model, described round platform is divided into uniform six sector units, in each sector unit, be provided with ratchet, ratchet in each sector unit be arranged in parallel, and spacing is equal, and the ratchet angle in adjacent two sector units is 60 °, and is processed with U-groove bevel between adjacent two sector units, before described ratchet, be 2 ° with vertical surface angle, described ratchet be below 30 ° with horizontal plane angle.This structure is convenient to realize the automatic cutting processing of numerical control machine tool, makes crown sharp, and unit tooth is long stressedly evenly can easily thrust the end face of mother nut when work, guarantees that two nuts can firmly tie ground integrator; And pad tooth or the end tooth of traditional unequal section, generally by punch process, crown is slightly blunt, has just increased frictional force when work, with the combination of fitting surface be not very firm, anti-loosing effect is limited.
Mother nut can successfully pass through from the locking section of kingbolt when making to install, with the root of the corresponding screw thread of described mother nut through being greater than and the external diameter of the corresponding screw thread of described locking nut.
Brief description of the drawings
Fig. 1 is structural representation.
Fig. 2 is the structural scheme of mechanism of locking nut in the utility model.
Fig. 3 is along A-A in Fig. 2 to partial sectional view.
Wherein, 1 kingbolt, 2 mother nuts, 3 locking nuts, 4 round platforms, 4a ratchet, 4bU shape groove.
Embodiment
Back-buckling type self-locking anti-loosing fastening piece for a kind of high ferro electrified contacting nets as Figure 1-3, comprise the mother nut 2 and the locking nut 3 that are threaded togather with kingbolt 1, mother nut 2 is contrary with locking nut 3 rotation directions, the pitch of mother nut 2 is greater than the pitch of locking nut 3, locking nut 3 is provided with round platform 4 near the end face of mother nut 2, round platform 4 is divided into uniform six sector units, in each sector unit, be provided with ratchet 4a, ratchet 4a in each sector unit be arranged in parallel, and spacing equates, ratchet 4a angle in adjacent two sector units is 60 °, and be processed with U-groove bevel 4B between adjacent two sector units, before ratchet 4a, it is 2 ° with vertical surface angle, ratchet 4a's is 30 ° with horizontal plane angle below, with the root of mother nut 2 corresponding screw threads through being greater than and the external diameter of locking nut 3 corresponding screw threads.
When the utility model work, mother nut 2 and locking nut 3 are tightened rear common formation " left-hand thread " relation separately, the rotation direction that retreats that is mother nut 2 is just the rotation direction of advancing of locking nut 3, and after two nuts are tightened respectively, ratchet 4a on locking nut 3 end faces penetrates in the jointing end face of mother nut 2, crown is met the direction of unclamping facing to mother nut 2, oppositely loosening (even the in the situation that of the judder) when locking nut 3 has stoped mother nut 2 to be worked; After locking nut 3 counter-tightened, as likely loosening while working, can only be rotated in the forward, and when forward rotation, ratchet 4a point has propped up again mother nut 2 and has forced mother nut 2 forward together, but mother nut 2 forward is tightened, when therefore mother nut 2 and the locking nut 3 that is firmly connected by ratchet 4a and mother nut 2 are worked, under nature, be can not be rotated in the forward and become flexible; But when dismounting is rotated in the forward the application of force to locking nut 3 by force because of spanner, when this power reaches certain when large, ratchet 4a has had resiliently deformable, locking nut 3 starts to retreat, so the power of supporting of ratchet 4a reduces, spanner continues the application of force, and locking nut 3 retreats more, continue again, locking nut 3 has just unclamped, and this process is for artificially turning with spanner brute force, and when work, under nature, in no way this situation occurs, be that mechanism can natural release, therefore mechanism is in use safe and reliable; Ratchet 4a is separately positioned in six sector unit structures, makes ratchet 4a be convenient to processing, crown is sharp, and unit tooth is long stressedly evenly can easily thrust the end face of mother nut 2 when work, guarantees that two nuts can firmly tie ground integrator.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technological scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characteristicss wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (4)
1. a back-buckling type self-locking anti-loosing fastening piece for high ferro electrified contacting nets, comprise the mother nut and the locking nut that are threaded togather with kingbolt, described mother nut is contrary with locking nut rotation direction, it is characterized in that, the pitch of described mother nut is greater than the pitch of locking nut, described locking nut is provided with round platform near the end face of mother nut, is evenly processed with ratchet on round platform.
2. back-buckling type self-locking anti-loosing fastening piece for a kind of high ferro electrified contacting nets according to claim 1, it is characterized in that, described round platform is divided into uniform six sector units, in each sector unit, be provided with ratchet, ratchet in each sector unit be arranged in parallel, and spacing is equal, and the ratchet angle in adjacent two sector units is 60 °, and is processed with U-groove bevel between adjacent two sector units.
3. back-buckling type self-locking anti-loosing fastening piece for a kind of high ferro electrified contacting nets according to claim 1 and 2, is characterized in that, is 2 ° with vertical surface angle before described ratchet, described ratchet be 30 ° with horizontal plane angle below.
4. back-buckling type self-locking anti-loosing fastening piece for a kind of high ferro electrified contacting nets according to claim 1 and 2, is characterized in that, with the root of the corresponding screw thread of described mother nut through being greater than and the external diameter of the corresponding screw thread of described locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202497.0U CN203835922U (en) | 2014-04-24 | 2014-04-24 | Reversely-buckled type self-locking anti-loose fastener for high-speed rail electrified catenary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202497.0U CN203835922U (en) | 2014-04-24 | 2014-04-24 | Reversely-buckled type self-locking anti-loose fastener for high-speed rail electrified catenary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835922U true CN203835922U (en) | 2014-09-17 |
Family
ID=51513769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202497.0U Expired - Fee Related CN203835922U (en) | 2014-04-24 | 2014-04-24 | Reversely-buckled type self-locking anti-loose fastener for high-speed rail electrified catenary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835922U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425932A (en) * | 2018-05-15 | 2018-08-21 | 湖北振邦高新技术有限公司 | A kind of high iron catenary self-locking device |
| CN110126680A (en) * | 2019-04-30 | 2019-08-16 | 扬州市金诺尔不锈钢有限公司 | A kind of high-speed railway touching net fastener |
| CN113137422A (en) * | 2021-04-11 | 2021-07-20 | 张俊岳 | Check bolt and nut assembly, bolt and nut |
| CN114992215A (en) * | 2022-07-19 | 2022-09-02 | 信阳航钛精密科技有限公司 | Lock catch fastening device for high-speed rail contact network |
-
2014
- 2014-04-24 CN CN201420202497.0U patent/CN203835922U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425932A (en) * | 2018-05-15 | 2018-08-21 | 湖北振邦高新技术有限公司 | A kind of high iron catenary self-locking device |
| CN110126680A (en) * | 2019-04-30 | 2019-08-16 | 扬州市金诺尔不锈钢有限公司 | A kind of high-speed railway touching net fastener |
| CN113137422A (en) * | 2021-04-11 | 2021-07-20 | 张俊岳 | Check bolt and nut assembly, bolt and nut |
| CN114992215A (en) * | 2022-07-19 | 2022-09-02 | 信阳航钛精密科技有限公司 | Lock catch fastening device for high-speed rail contact network |
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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: 20140917 Termination date: 20160424 |