CN205226022U - Cylindrical ball antitheft nut - Google Patents
Cylindrical ball antitheft nut Download PDFInfo
- Publication number
- CN205226022U CN205226022U CN201521115960.9U CN201521115960U CN205226022U CN 205226022 U CN205226022 U CN 205226022U CN 201521115960 U CN201521115960 U CN 201521115960U CN 205226022 U CN205226022 U CN 205226022U
- Authority
- CN
- China
- Prior art keywords
- nut
- plug sleeve
- groove
- steel ball
- recess
- 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.)
- Active
Links
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a cylindrical ball antitheft nut. The main lock nut who has now that solves prevents unloading the poor problem of theftproof function. Its characterized in that: nut (1) surface is the cylinder, and is equipped with arc draw -in groove (4) of circumference in the middle part of the face of cylinder, and it has at least one recess (2) to open on nut (1) inner wall, the cross section of recess (2) is half -circular arc, and recess (2) are built -in has steel ball (3), it has plug sleeve (5) to deploy in the hole of nut (1), and plug sleeve (5) lower extreme is equipped with protruding edge, and plug sleeve (5) are protruding highly is lighter than nut (1) height along lower extreme cylindrical portion. This cylindrical ball antitheft nut's steel ball is difficult for droing to need the special spanner installation to dismantle, have simple to operate and the effectual characteristics of theftproof.
Description
Technical field
The utility model relates to a kind of axial lock compact form fastening piece, specifically a kind of cylindrical roller anti-theft nut.
Background technique
Nut is a kind of widely used fastening piece that matches with bolt, as long as screw in the bolt matched with it just clamped thing to be clamped, very easy to use, but in use, being produced unsafe factor because artificially dismantling sometimes, even having an accident.Conventional axial locking burglarproof lock gripping members, the smooth pin of general employing contacts with smooth steel ball.Because its frictional force is little, there will be when falling to twist phenomenons such as skidding or move axially, the reliability of anti-theft feature is reduced greatly.
Summary of the invention
The deficiency of anti-theft feature difference is prevented unloading in order to overcome existing locking nut, the utility model provides a kind of cylindrical roller anti-theft nut, the steel ball difficult drop-off of this cylindrical roller anti-theft nut, and need special spanner installing/dismounting, there is easy for installation and feature that is good anti-theft effect.
The technical solution of the utility model is: a kind of cylindrical roller anti-theft nut, comprise nut, described nut outer surfaces is cylinder, and in the middle part of cylndrical surface, being provided with the arc-shaped slot of circumference, nut inner wall has at least one groove, the cross section of described groove is semicircular arc, and groove is built-in with steel ball, the endoporus inside of described nut is equipped with plug sleeve, and plug sleeve lower end is provided with convex edge, and the height of lower end, plug sleeve convex edge column part is less than height of nut.
On described plug sleeve sidewall, vertical direction has several bar-shaped troughs.
The utility model has following beneficial effect: owing to taking such scheme, and the outer surface of nut is cylindrical, and cylindrical outer surface has draw-in groove, need adopt special spanner like this when tightening, and common wrench cannot turn; The inner hole wall of nut is provided with groove, in nut bore, is provided with plug sleeve again, steel ball difficult drop-off when nut does not use; When carrying out dismounting, the steel ball in groove slides from the angle of trend semi-circle, is subject to the extruding of nuts and bolt, thus plays and anti-unload anti-theft feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of nut in the utility model;
Fig. 3 is the plan view of plug sleeve;
Fig. 4 is the plan view of plug sleeve.
1-nut in figure, 2-groove, 3-steel ball, 4-arc-shaped slot, 5-plug sleeve, 6-bar-shaped trough.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
By shown in Fig. 1 to Fig. 4, a kind of cylindrical roller anti-theft nut, comprises nut 1, and described nut 1 outer surface is cylinder, and is provided with the arc-shaped slot 4 of circumference in the middle part of cylndrical surface, needs like this to adopt special spanner when tightening.Nut 1 inwall has at least one groove 2, the quantity of described groove 2 can be 1-4, the cross section of groove 2 is semicircular arc, and groove 2 is built-in with steel ball 3, the degree of depth of described groove 2 and width are all greater than steel ball 4 diameter, steel ball 4 surface knurling, the hardness of described steel ball 4 should reach 35-64HRC, and diameter is no less than 1mm.The endoporus inside of described nut 1 is equipped with plug sleeve 5, and plug sleeve 5 lower end is provided with convex edge, and the height of lower end, plug sleeve 5 convex edge column part is less than nut 1 height.The external diameter of plug sleeve 5 lower end column part can slightly larger than nut 1 internal diameter, and before nut uses, avoid plug sleeve 5 to come off like this, on described plug sleeve 5 sidewall, vertical direction has several bar-shaped troughs 6, can increase the elasticity of plug sleeve 5, make it more easily install.
This nut in use, has one end of convex edge to be screwed into outwardly plug sleeve 5 on nut 1, and plug sleeve 5 can skid off from nut 1 endoporus automatically; Form half arc wedge groove between the bolt outside thread of the groove 2 in nut 1 and screw-in, after nut 1 is locked, steel ball 3 is enclosed in groove 2.When by nut 1 unscrewed loose unloading, steel ball 3 can be subject to the friction and Extrusion of bolt and groove 2 immediately, thus forms larger coupling mechanism force to the groove 2 direction slippage little with the wedged gap of bolt pattern, plays anti-ly to unload anti-theft feature.Meanwhile, because nut 1 outer surface is cylindrical, only have and adopt special spanner to be stuck on columniform arc-shaped slot 4, just can turn, play double anti-theft functions.
Claims (2)
1. a cylindrical roller anti-theft nut, comprise nut (1), it is characterized in that: described nut (1) outer surface is cylinder, and in the middle part of cylndrical surface, be provided with the arc-shaped slot (4) of circumference, nut (1) inwall has at least one groove (2), the cross section of described groove (2) is semicircular arc, and groove (2) is built-in with steel ball (3), the endoporus inside of described nut (1) is equipped with plug sleeve (5), plug sleeve (5) lower end is provided with convex edge, and the height of plug sleeve (5) lower end, convex edge column part is less than nut (1) highly.
2. cylindrical roller anti-theft nut according to claim 1, is characterized in that: on described plug sleeve (5) sidewall, vertical direction has several bar-shaped troughs (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115960.9U CN205226022U (en) | 2015-12-29 | 2015-12-29 | Cylindrical ball antitheft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521115960.9U CN205226022U (en) | 2015-12-29 | 2015-12-29 | Cylindrical ball antitheft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226022U true CN205226022U (en) | 2016-05-11 |
Family
ID=55901090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521115960.9U Active CN205226022U (en) | 2015-12-29 | 2015-12-29 | Cylindrical ball antitheft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709746A (en) * | 2019-10-24 | 2021-04-27 | 何天麟 | Taper needle type anti-theft nut sheath |
-
2015
- 2015-12-29 CN CN201521115960.9U patent/CN205226022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709746A (en) * | 2019-10-24 | 2021-04-27 | 何天麟 | Taper needle type anti-theft nut sheath |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2862709C (en) | Torque controlling break screw | |
| US9255601B2 (en) | Nut and combination of a bolt part with a nut | |
| EP3137777B1 (en) | System comprising an externally threaded bolt | |
| CN205226022U (en) | Cylindrical ball antitheft nut | |
| CN210889672U (en) | Never loose nut assembly | |
| US4880344A (en) | Device for preventing loosening of a member | |
| CN105972041A (en) | Double loosening preventing type bolt | |
| US3674075A (en) | Tamper-proof two-way locking nut | |
| WO2016092572A1 (en) | Unscrewing-preventing systems through friction for bolts | |
| CN210660971U (en) | Anti-loosening locking bolt | |
| CN105402237A (en) | Hexagonal combined type disassembling-preventing and theft-proofing nut with knurling roller | |
| CN205298206U (en) | Antitheft nut is prevented unloading by pentagon annular knurl roller | |
| CN205207394U (en) | Antitheft nut is prevented unloading by cylindrical combination formula annular knurl steel ball | |
| CN105370700A (en) | Cylindrical combined-type knurled ball anti-detachment and anti-theft nut | |
| CN217735986U (en) | Locking nut | |
| WO1996023142B1 (en) | Locking devices | |
| DE102016209479A1 (en) | Wrench adapter for a screwed into a threaded opening component | |
| US10308067B2 (en) | Wheel nut assembly | |
| CN202833526U (en) | Hexagon stud | |
| CN205226014U (en) | Antitheft nut is prevented unloading by hexagon combination formula annular knurl roller | |
| CN201335081Y (en) | Dismounting-proofing nut | |
| CN202468635U (en) | Protective and anti-theft nut of elastic thrust knurled pin | |
| CN203257845U (en) | Fastening barrel for combining parts on model | |
| CN211501054U (en) | Shaft movement prevention structure for multi-stage pump transportation process | |
| US2262200A (en) | Nut lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |