CN2504428Y - Anti-loosen anti-theft nut - Google Patents
Anti-loosen anti-theft nut Download PDFInfo
- Publication number
- CN2504428Y CN2504428Y CN 01268039 CN01268039U CN2504428Y CN 2504428 Y CN2504428 Y CN 2504428Y CN 01268039 CN01268039 CN 01268039 CN 01268039 U CN01268039 U CN 01268039U CN 2504428 Y CN2504428 Y CN 2504428Y
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- CN
- China
- Prior art keywords
- nut
- head
- joint
- mother
- resistance
- 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
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a loosing-resistance burglar-resistance nut. In order to solve the problems that the present fasteners are easy to be loosed and stolen, a nut with reasonable structure, convenient using, and better loosing-resistance burglar-resistance effect is provided. The utility model consists of a main nut, comprising a head part and a connection part with the diameter being less than the head part, the head part and the connection part are provided with an inner thread hole, an outer thread is arranged on the excircle of the connection part, the outer thread of the connection part is deviated from the inner thread of the connection part for a certain distance, a secondary nut comprises an inner thread which is connected with the main nut , and an inner thread hole which has the same axis and diameter with the inner thread hole of the main nut, the secondary nut also comprises a cup shape guard sleeve which can at least hold the head part of the main nut. Because of the eccentric function of the inner thread hole and the outer thread, the secondary nut is held down on a bolt, when a burglar is stealing, the tools such as common wrenches and pipe wrenches can not be used because the main nut is sleeved by the guard sleeve, the burglar can not use the regular tools to dismount, the more he rotates the tighter the nut is, thereby achieving the purpose of burglar-resistance and loosing-resistance.
Description
Technical field
The utility model relates to a kind of secure component, especially relates to a kind of anti-loose anti-theft nut.
Background technique
At present, bolt and nut commonly used locking has following several method, and 1, add compression spring; 2, with double nut and tight; 3, after nut is fastening, utilize being recessed on the nut on the bolt that iron wire is worn in boring or pin is fixed; 4, groove milling combines locking with stopping shim with nut on bolt.
Can satisfy generally speaking fastening requirement though above method has, for the machinery of judder, then effect is undesirable, owing to conventional fasteners loosening causes fastening inefficacy, causes mechanical accident, brings very big pressure for the maintenance of equipment.Above-mentioned several traditional fastening form all can not play antitheft effect.Thereby make the burglar be easy to fastening piece is stolen.Every year is only at china railway and oil field system, because of stolen equipment cause with a toll of more than one hundred million units.
Summary of the invention
The utility model is for solving easily loosening, the easy stolen problem of above-mentioned fastening piece, and a kind of rational in infrastructure, easy to use, nut that anti-loose anti-theft is effective is provided.
The utility model anti-loose anti-theft nut; comprise mother nut and secondary nut; described mother nut is made up of less than the joint of head a head and a diameter; described head and joint are provided with and are used for and bolted interior threaded hole; the cylindrical of described joint is provided with outside thread; the axis runout certain distance of the outside thread of described joint and interior threaded hole; be provided with a groove between the head of described mother nut and the joint; a pad is housed on it; described secondary nut comprises the interior threaded hole of an internal thread that is connected with the mother nut joint and one and equal diameters coaxial with the mother nut interior threaded hole; the profile of described mother nut head and secondary nut is hexagon, comprises that also a head to major general's mother nut is contained in cup-shaped protecting jacket wherein.
The utility model anti-loose anti-theft nut, wherein the periphery of the head of mother nut and secondary nut is non-standard hexagon.
The utility model anti-loose anti-theft nut, wherein the outside thread of mother nut joint and interior threaded hole eccentric axis apart from being 0.5～2mm.
The utility model anti-loose anti-theft nut, wherein the hardness of protecting jacket is HRC25～35.
The beneficial effect of the utility model anti-loose anti-theft nut is because the axis runout certain distance of two screw threads of mother nut internal thread and outside thread and secondary nut; work as the master; secondary nut also is enclosed within mother nut one rear flank together and with protecting jacket; be installed on the bolt according to the plain nut installation method and get final product; then secondary nut is rotated an angle by counter clockwise direction; because wobbler action; make secondary nut stuck on bolt; like this; when the thief commits theft; because the protected cover of mother nut entangles; can't use common wrench according to a conventional method; the instrument of pipe wrench and so on is pulled down nut; the thief is with common wrench in the counterclockwise direction during the revolute pair nut; can make more and more tighter being stuck on the bolt of secondary nut; otherwise the major-minor nut is fastened on the bolt together along screwing direction clockwise; can only be stubborn more tight more, thus reach antitheft locking purpose.
Other details of the present utility model and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the structure sectional view of the utility model anti-loose anti-theft nut when being connected with bolt;
Fig. 2 is an A-A sectional view among Fig. 1.
Preferred forms
As Fig. 1, shown in 2, the utility model anti-loose anti-theft nut, comprise mother nut 1 and secondary nut 2, wherein mother nut 1 is made up of less than the joint 4 of head a head 3 and a diameter, and head 3 and joint 4 are provided with and are used for the internal thread 5 that is connected with bolt 11, and the cylindrical of joint 4 is provided with outside thread 6, the outside thread 6 of joint 4 and the axis runout certain distance of internal thread 5, mother nut 1 internal thread 5 is 0.5～2mm with the eccentric axis amount of outside thread 6.As shown in Figure 2.Be provided with a groove between the head 3 of mother nut 1 and the joint 4; a pad 10 is housed on it; secondary nut 2 comprises the interior threaded hole 8 of an internal thread 7 that is connected with the joint 4 of mother nut 1 and one and equal diameters coaxial with mother nut 1 interior threaded hole; the head 3 of mother nut 1 and the profile of secondary nut 2 are hexagon, comprise that also a head 3 to major general's mother nut 1 is contained in cup-shaped protecting jacket 9 wherein.Protecting jacket 9 is preferably through Overheating Treatment, and its hardness is HRC25～35.In the present embodiment, preferably the part of the head 3 of mother nut 1 and secondary nut 2 places described protecting jacket 9.And keep at a certain distance away between the internal diameter of protecting jacket 9 and the mother nut 1, be used for when dismounting, placing special tool.Preferably the profile of the head 3 of mother nut 1 and secondary nut 2 is non-standard orthohexagonal.
Working procedure of the present utility model is the axis runout certain distance of two screw threads of mother nut 1 interior threaded hole 5 and outside thread 6; work as the master; secondary nut 1; 2 also are enclosed within mother nut 1 one rear flank together and with protecting jacket 9; be installed on the bolt 11 according to the plain nut installation method and get final product; then secondary nut 2 is rotated by counter clockwise direction; because two wobbler actions that interior threaded hole has of secondary nut; make secondary nut 2 stuck on bolt 11; like this; when the thief commits theft; because the protected cover 9 of a part of mother nut 1 and secondary nut 2 entangles; can't use common wrench; the instrument of pipe wrench and so on; make the very inconvenient use common tool dismounting of burglar, can only be stubborn more tight more, because the material of protecting jacket 9 is through Overheating Treatment; it is motionless that the robber is also sawed with saw at this moment, thereby reach antitheft locking purpose.
When the maintainer dismantles,, use special spanner to rotate major and minor nut simultaneously and can easily it be pulled down as long as secondary nut 2 is threaded to original-pack initial position with mother nut 1.
Claims (4)
1; a kind of anti-loose anti-theft nut; comprise mother nut and secondary nut; it is characterized in that described mother nut is made up of less than the joint of head a head and a diameter; described head and joint are provided with and are used for and bolted interior threaded hole; the cylindrical of described joint is provided with outside thread; the axis runout certain distance of the outside thread of described joint and interior threaded hole; be provided with a groove between the head of described mother nut and the joint; a pad is housed on it; described secondary nut comprises the interior threaded hole of an internal thread that is connected with the mother nut joint and one and equal diameters coaxial with the mother nut interior threaded hole; the profile of described mother nut head and secondary nut is hexagon, comprises that also a head to major general's mother nut is contained in cup-shaped protecting jacket wherein.
2, anti-loose anti-theft nut according to claim 1 is characterized in that the head of described mother nut and the periphery of secondary nut are non-standard hexagon.
3, anti-loose anti-theft nut according to claim 1 and 2 is characterized in that the outside thread of described mother nut joint and the eccentric axis distance of interior threaded hole are 0.5～2mm.
4, anti-loose anti-theft nut according to claim 3, the hardness that it is characterized in that described protecting jacket is HRC25～35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268039 CN2504428Y (en) | 2001-10-31 | 2001-10-31 | Anti-loosen anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01268039 CN2504428Y (en) | 2001-10-31 | 2001-10-31 | Anti-loosen anti-theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2504428Y true CN2504428Y (en) | 2002-08-07 |
Family
ID=33674301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01268039 Expired - Fee Related CN2504428Y (en) | 2001-10-31 | 2001-10-31 | Anti-loosen anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2504428Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704338A (en) * | 2016-12-13 | 2017-05-24 | 广东省特种设备检测研究院茂名检测院 | Novel combined nut |
| WO2017100962A1 (en) * | 2015-12-14 | 2017-06-22 | 徐海军 | Anti-theft and anti-swap non-standard fastening piece |
| CN107269668A (en) * | 2017-07-27 | 2017-10-20 | 海盐东盛紧固件制造有限公司 | A kind of locked anti-theft bolt group |
| CN110259597A (en) * | 2019-06-21 | 2019-09-20 | 钟建斌 | A kind of new Joining Structure between valve mechanism cover and cylinder head |
| CN111963551A (en) * | 2020-09-06 | 2020-11-20 | 叶春林 | Ring sleeve type locknut |
-
2001
- 2001-10-31 CN CN 01268039 patent/CN2504428Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017100962A1 (en) * | 2015-12-14 | 2017-06-22 | 徐海军 | Anti-theft and anti-swap non-standard fastening piece |
| CN106704338A (en) * | 2016-12-13 | 2017-05-24 | 广东省特种设备检测研究院茂名检测院 | Novel combined nut |
| CN107269668A (en) * | 2017-07-27 | 2017-10-20 | 海盐东盛紧固件制造有限公司 | A kind of locked anti-theft bolt group |
| CN110259597A (en) * | 2019-06-21 | 2019-09-20 | 钟建斌 | A kind of new Joining Structure between valve mechanism cover and cylinder head |
| CN111963551A (en) * | 2020-09-06 | 2020-11-20 | 叶春林 | Ring sleeve type locknut |
| CN111963551B (en) * | 2020-09-06 | 2022-04-01 | 叶春林 | Single ring type locknut assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |