CN204572732U - A kind of anti-theft nut - Google Patents
A kind of anti-theft nut Download PDFInfo
- Publication number
- CN204572732U CN204572732U CN201520128639.8U CN201520128639U CN204572732U CN 204572732 U CN204572732 U CN 204572732U CN 201520128639 U CN201520128639 U CN 201520128639U CN 204572732 U CN204572732 U CN 204572732U
- Authority
- CN
- China
- Prior art keywords
- nut
- pellet
- inclined hole
- spring
- point
- 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
Links
- 239000008188 pellet Substances 0.000 claims abstract description 48
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
A kind of anti-theft nut, comprise and the nut of bolt body screw-thread fit (1), it is characterized in that, nut sidewall is provided with the inclined hole (2) in oblique fastening nuts direction, pellet (3), spring (4) and rivet (5) is provided with from the inside to the outside successively in inclined hole, described pellet comprises a round and smooth point (31), round and smooth point (31) stretches out outside the inner orifice of inclined hole under the thrust of spring (4), the outer aperture of inclined hole blocks by rivet (5), and nut inner circle is provided with the plastic plug (6) of Spielpassung.When nut does not rotate, under the action of the spring, the tip of pellet tightly withstands between screw rod and nut gap pellet, and when nut is to when tightening up direction rotation, pellet extrusion spring, makes spring-compressed, in pellet retraction hole, does not affect nut rotation.When nut is to counter-rotation, the locked screw rod of pellet and nut, make nut all can not rotate, realize one-way rotation function, can effectively prevent nut from removing.
Description
Technical field
The utility model relates to power equipment component, specifically a kind of anti-theft nut.
Background technique
Along with material and cultural life improves gradually, people propose higher requirement to device security, and particularly power equipment is all the more so.In actual life, do not have the supply of electric power, people just cannot work and live, and traffic and society will be chaotic, cause inconceivable serious consequence.Some lawless person, ignores national wealth and personal life safety, and theft electric power facility shaft tower material, causes down tower, electric transmission line normally can not be run, thus cause large area blackout; Also some lawless person, theft distribution transformer copper cash bag, sells with copper scrap, obtains illicit income, cause whole district to have a power failure, make troubles to the platform district masses, bring construction safety risk not only to power construction personnel, and cause larger economic loss.Therefore, develop simple, safe and reliable anti-theft nut apparent must be gone, and the molecule that avoids theft steals electric power facility, guarantees power equipment safety reliable operation, thus ensures power supply continuously, meets the needs of people's life and socio-economic development.
Model utility content
The deficiency that the utility model exists in order to avoid prior art, provides one can only rotate to fastening direction, can not rotate backward the anti-theft nut of nut.
The utility model technical solution problem adopts following technological scheme:
A kind of anti-theft nut, comprise the nut coordinated with bolt thread, its structural feature is, described nut sidewall is provided with the inclined hole in oblique fastening nuts direction, be provided with pellet, spring and rivet successively from the inside to the outside in described inclined hole, described pellet comprises a round and smooth point, and described round and smooth point stretches out outside the inner orifice of inclined hole under the thrust of spring, the outer aperture of inclined hole blocks by described rivet, and described nut inner circle is provided with the plastic plug of Spielpassung.
The utility model structural feature is also,
The shaft axis of described inclined hole is parallel with the upper and lower surface of nut, the tip of the round and smooth point of pellet withstands the bolt outer surface be arranged on nut, the point of contact formed with described tip and bolt outer surface is bolt point of contact, and the tangent line at described point of contact and the shaft axis acute angle of pellet are 5 °.
The quantity of described inclined hole is two or more, and oblique nut circumference direction is uniformly distributed.
Described pellet and spring are integral type structure.
The axis parallel of described inclined hole is in the upper and lower surface of nut, and the bolt on the annulus point of described pellet and mounting nuts is circumscribed.
Compared with the prior art, the utility model beneficial effect is embodied in:
The utility model is not when nut rotates, and under the action of the spring, the tip of pellet tightly withstands between screw rod and nut gap pellet, when nut is to when tightening up direction rotation, pellet extrusion spring, makes spring-compressed, pellet in hole, and can rotate, and does not affect nut rotation.When nut is to counter-rotation, because the gap between screw rod and nut is inner small and outside big, pellet presses closer between screw rod and nut, and pellet is inner small and outside big, make the locked screw rod of pellet and nut, nut all can not be rotated, thus realize one-way rotation function, can effectively prevent nut from removing.
The utility model anti-theft bolt using scope: power transmission line line pole tower, distribution transformer can be used in, variously fasteningly draw etc. on electric power facility, on the means of transportation such as railway, freeway guardrail and bridge, as long as there is Long-Time Service, there is the place of antitheft requirement, just can use.Using value is high, and using scope is wide.
Accompanying drawing explanation
Fig. 1 is the utility model nut structure schematic diagram.
Fig. 2 is the nut structure schematic diagram of the utility model when not installing pellet, spring, rivet and rubber stopper.
Fig. 3 is the utility model pin tumbler mechanism schematic diagram.
Number in the figure: 1 nut, 2 inclined holes, 3 pellets, 31 round and smooth points, 4 springs, 5 rivets, 6 plastic plugs.
By embodiment, explanation is further explained to technical solutions of the utility model below in conjunction with accompanying drawing.
Embodiment
As shown in the figure, a kind of anti-theft nut, comprise the nut 1 coordinated with bolt thread, nut sidewall is provided with the inclined hole 2 in oblique fastening nuts direction, be provided with pellet 3, spring 4 and rivet 5 from the inside to the outside successively in inclined hole, pellet comprises a round and smooth point 31, and round and smooth point 31 stretches out outside the inner orifice of inclined hole under the thrust of spring 4, the outer aperture of inclined hole blocks by rivet 5, and nut inner circle is provided with the plastic plug 6 of Spielpassung.
Further, inclined hole is parallel to the upper and lower surface of nut, the tip of the round and smooth point of pellet withstands the bolt outer surface be arranged on nut, and the point of contact formed with described tip and bolt outer surface is bolt point of contact, and the tangent line at described point of contact and the shaft axis acute angle of pellet are 5 °.
Further, the quantity of inclined hole 2 is two or more, and is uniformly distributed along nut circumference direction.
Further, pellet 3 and spring 4 are integral type structure.
During concrete enforcement, according to the nut of different model, adopt different apertures, choose different-diameter pellet and spring, and afterbody rivet used.The size of Regulation spring pressure is carried out, to reach the optimum state by the length of rivet.Determine that the factor of nut one-way rotation effect mainly contains two aspects: the size of the tapering of the angle of perforate and billiards diameter and pellet, the angle of perforate: the shaft axis of perforate is parallel with the upper and lower hexacorner surface of nut, at the middle part of nut, and the bolt on the annulus point of pellet and mounting nuts is formed circumscribed, be easy to pellet and slide and locked.The size of inclined hole diameter, is determined by billiards diameter, generally 0.1-0.2 millimeter larger than billiards diameter.The selection of billiards diameter and tapering size: the size of billiards diameter, the size according to bolt pitch determines, billiards diameter is got and is micro-ly greater than pitch.Billiards diameter is too large, and pellet slides between screw rod and nut, and screw rod and nut are not easily locked, and billiards diameter is too little, and pellet resistance between screw rod and nut is little, is easily clipped between screw rod and nut, not easily locked screw rod and nut.Pellet tapering and moderate length, the head of pellet is round and smooth, favourablely rotates to fastening direction, also will have certain tapering, to press closer between screw bolt and nut gap, lockedly in time rotate backward, reach anti-theft nut optimum efficiency.The selection of spring strength: moderate strength, pellet top to screw rod and nut surface of contact, can have again certain distance of stretch out and draw back, pellet is returned, and does not affect fastening direction and rotates.When spring strength is too large, pellet not easily returns, and affects fastening direction and rotates.Spring strength is too little, and pellet moves in hole, not easily screw rod and nut locked, do not reach the optimum state, spring diameter is less than billiards diameter, smooth with pellet junction, and preventing pellet from rolling spring can not move, and affects one-way rotation performance.Afterbody tightens up rivet and inclined hole matches, and when assembling, rivet with inclined hole expanded joint or welds or be structure as a whole, and to make its surface leave no trace, comes off and find the position of hole for preventing rivet.
The combination of anti-theft bolt: for convenient during construction, pellet and spring have been assembled complete.Concrete combination has plastic plug in the middle of nut, and pellet and spring fitting are debugged intact, and afterbody rivets.When nut is screwed in bolt, plastic plug ejects, and tightens.
The method of the installation and removal of anti-theft bolt: during installation, a kind of is that former screw rod has enough length, can move nut directly fastening according to the relaxation of selection of bolt model.Another kind is that former bolt and nut is removed, and changes and puts loose nut.
During dismounting, can only the method such as gas cutting or broken nut remove antitheft.
Claims (4)
1. an anti-theft nut, comprise and the nut of bolt body screw-thread fit (1), it is characterized in that, described nut sidewall is provided with the inclined hole (2) in oblique fastening nuts direction, pellet (3) is provided with from the inside to the outside successively in described inclined hole, spring (4) and rivet (5), described pellet comprises a round and smooth point (31), described round and smooth point (31) is stretched out outside the inner orifice of inclined hole under the thrust of spring (4), the outer aperture of inclined hole blocks by described rivet (5), described nut inner circle is provided with the plastic plug (6) of Spielpassung.
2. a kind of anti-theft nut according to claim 1, it is characterized in that, the axis parallel of described inclined hole is in the upper and lower surface of nut, the tip of the round and smooth point of pellet withstands the bolt outer surface be arranged on nut, the point of contact formed with described tip and bolt outer surface is bolt point of contact, and the tangent line at described point of contact and the shaft axis acute angle of pellet are 5 °.
3. a kind of anti-theft nut according to claim 1, is characterized in that, the quantity of described inclined hole (2) is two or more, and is uniformly distributed along nut circumference direction.
4. a kind of anti-theft nut according to claim 1, is characterized in that, described pellet (3) and spring (4) are integral type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128639.8U CN204572732U (en) | 2015-03-06 | 2015-03-06 | A kind of anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128639.8U CN204572732U (en) | 2015-03-06 | 2015-03-06 | A kind of anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572732U true CN204572732U (en) | 2015-08-19 |
Family
ID=53865375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520128639.8U Expired - Fee Related CN204572732U (en) | 2015-03-06 | 2015-03-06 | A kind of anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675835A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Antitheft nut |
-
2015
- 2015-03-06 CN CN201520128639.8U patent/CN204572732U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675835A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Antitheft nut |
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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 |
Granted publication date: 20150819 Termination date: 20210306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |