CN106763099A - A kind of anti-theft nut component and anti-theft nut - Google Patents

A kind of anti-theft nut component and anti-theft nut Download PDF

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Publication number
CN106763099A
CN106763099A CN201710170301.2A CN201710170301A CN106763099A CN 106763099 A CN106763099 A CN 106763099A CN 201710170301 A CN201710170301 A CN 201710170301A CN 106763099 A CN106763099 A CN 106763099A
Authority
CN
China
Prior art keywords
theft nut
boss
theft
antitheft
nut
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.)
Pending
Application number
CN201710170301.2A
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Chinese (zh)
Inventor
李磊
倪枫晔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Feng Jia Power Equipment Co Ltd
Original Assignee
Henan Feng Jia Power Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Feng Jia Power Equipment Co Ltd filed Critical Henan Feng Jia Power Equipment Co Ltd
Priority to CN201710170301.2A priority Critical patent/CN106763099A/en
Publication of CN106763099A publication Critical patent/CN106763099A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/005Measures against unauthorised operation of bolts, nuts or pins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

It is poor with the various anti-theft effects for solving the problems, such as nut in the prior art the invention provides a kind of anti-theft nut component, additionally provide anti-theft nut.Anti-theft nut component includes anti-theft nut, the bottom of the anti-theft nut is cylindrical structural, the antitheft circle that can be relatively rotated is cased with cylindrical structural, the top of anti-theft nut is the boss that radial dimension exceedes cylindrical structural, the outer circumference surface of the boss is provided with the plane of constraint clamped for tightening tool, and the boss meets following condition along the thickness on its axis of rotation direction:When the resistance that anti-theft nut is rotated reaches setting value, skidding can be produced between clamping device and the outer circumference surface of boss.When using, when the moment of torsion that spanner applies to anti-theft nut is more than design load, plane of constraint is skidded by rounding, spanner;When being dismantled with pipe wrench, pipe wrench clamping antitheft circle, antitheft circle is rotated relative to anti-theft nut, clamps boss, the contact area of boss and pipe wrench is too small and enough moment of torsion dismounting nuts cannot be provided.

Description

A kind of anti-theft nut component and anti-theft nut
Technical field
The present invention relates to a kind of anti-theft nut component and anti-theft nut.
Background technology
Conventional nut does not have anti-theft feature, but in some special use occasions, such as transmission of electricity of power system At the field facilities such as steel tower, communication system and highway, to prevent the destruction of lawless person, then require that clamp nut has anti- Steal function.There is antitheft mode miscellaneous in the prior art, for example, nut is designed into what can only be rotated by specific purpose tool Special nut, or anti-theft pin etc. is installed in nut, but these anti-theft nuts can be strong by pipe wrench class clamping device System clamps nut and destructive dismounting is carried out to nut, and theftproof performance is poor.
Application publication number discloses a kind of circular Combined theft-proof nut for the patent application document of CN106321605A, should Anti-theft nut includes nut body, and the nut body bottom is cylindrical structural, and top outwardly convex has prismatic structure, nut Screw is provided with the middle of body, circular arc Anti-theft groove is provided with the middle of the screw, block, the block are installed with Anti-theft groove On spring is installed, the spring other end is provided with steel ball, and block, spring and steel ball form the backing stop structure of nut, the retaining knot Structure is only stuck between nut inner thread and stud external screw thread when nut is reversely rotated relative to stud, prevents nut from stud Disassemble.The moment of torsion groove with diameter greater than screwhole diameter is provided with the middle part of the prismatic structure, nut body bottom is provided with matches somebody with somebody The antitheft circle of circular configuration is closed, the antitheft circle is enclosed within the circular configuration of nut body bottom and both can relatively rotate. When in use, antitheft circle is enclosed within nut body bottom, the prismatic structure on nut body top is pulled using general tool, carried out Fastening is installed, and because moment of torsion groove is weaker, when moment of torsion reaches rated value, prismatic structure produces change in moment of torsion groove Shape, fastening tool cannot also cannot be dismantled again to nut screwing clamping, if forcing to dismantle using pipe wrench class clamping device, pipe wrench is only Antitheft circle can be clamped, antitheft circle can be relatively rotated with the circular configuration of nut body bottom, so pipe wrench cannot be to above-mentioned nut Carry out shakedown dismounting.But, the prismatic structure of nut body and contact tightening tool is connected by moment of torsion groove, antitheft Nut deforms in moment of torsion groove, is found during actually used, because moment of torsion groove is weaker, when prismatic structure becomes Easily dropped after shape, or prismatic structure that can be easily deformation using plain vice is shut down, and now, matches somebody with somebody with nut body bottom The antitheft circle of conjunction can be taken out, and the circular configuration for clamping nut body bottom using pipe wrench is to be capable of achieving to break the anti-theft nut Bad property is dismantled, and the antitheft scheme is failed.
The content of the invention
It is an object of the invention to provide a kind of anti-theft nut component, to solve the various antitheft effect of nut in the prior art Really poor problem, present invention also offers anti-theft nut.
To solve the above problems, the anti-theft nut component in the present invention is adopted the following technical scheme that:Anti-theft nut component bag Anti-theft nut is included, the bottom of the anti-theft nut is cylindrical structural, and the antitheft circle that can be relatively rotated is cased with cylindrical structural, The top of anti-theft nut is the boss that radial dimension exceedes cylindrical structural, and the outer circumference surface of the boss is provided with for tightening work Has the plane of constraint for clamping, the boss meets following condition along the thickness on its axis of rotation direction:When anti-theft nut is rotated Resistance when reaching setting value, skidding can be produced between clamping device and the outer circumference surface of boss.When using, anti-theft nut set There is one end of antitheft circle towards stud, the open card of common wrench is on the plane of constraint of the outer circumference surface of boss to anti-theft nut Tightened, when nominal torque of the moment of torsion that spanner applies to anti-theft nut more than design, plane of constraint deforms and is ground into Circular arc, spanner skids relative to the outer circumference surface of boss, completes to install.When thief dismantles anti-theft nut, spanner is used Prismatic structure is reversely rotated, spanner skids, it is impossible to dismantled;When dismounting is forced using pipe wrench class clamping device, if Pipe wrench clamps antitheft circle, and antitheft circle can be relatively rotated relative to anti-theft nut bottom, if pipe wrench is clamped by the boss of rounding, by Smaller in the thickness of boss, boss is too small with the contact area of pipe wrench, it is impossible to provide enough moments of torsion, and pipe wrench can be relative to boss Skid and anti-theft nut cannot be disassembled.This programme can be realized, to the antitheft of general tool, the strong of pipe wrench being prevented again System is removed, and anti-theft effect is outstanding.
Further, the outer circumference surface of the boss is provided with more than two plane of constraints, and in each two stress Plane on boss circumferencial direction in being respectively arranged at two ends with cambered surface.It is to adapt to commonly pull to set more than two plane of constraints Hand is clamped to boss, so as to tighten anti-theft nut, plane of constraint be by cambered surface connection in order that anti-theft nut reach it is specified Facilitate plane of constraint by rounding after moment of torsion, anti-theft effect is produced in time.
Further, the outer circumference surface of the cylindrical structural is provided with more than three tangent planes coordinated for jig. Tangent plane fixation of the jig to anti-theft nut in production process for convenience.
Further, radial dimension of the radial dimension of the boss more than or equal to antitheft circle.It is antitheft for preventing After nut is fastened on stud, antitheft circle will not deviate from from anti-theft nut.
Further, the antitheft circle is less than or equal to the height of cylindrical structural along the height in its axis of rotation direction Degree.This difference in height is used to realize anti-theft nut after being fastened on stud that antitheft circle still can be relative to anti-theft nut The cylindrical structural of bottom is relatively rotated.
Further, the internal thread wall of the anti-theft nut is provided with antitheft groove, the bearing of trend of antitheft groove with The trend of screw thread is consistent, and the depth of antitheft groove is that middle depth two ends are shallow.The antitheft groove is used to accommodate anti-theft nut Backing stop structure, backing stop structure has the effect for preventing anti-theft nut from being rotated to disassembly direction.
Further, backing stop structure is provided with the antitheft groove, the backing stop structure includes block, spring and steel Ball, the two ends of spring are fixedly connected with block, steel ball respectively, and block is fixed on the bosom of the antitheft groove.Anti-theft nut When tightening, the pressure that the external screw thread on stud puts on steel ball makes steel ball be moved to direction deeper in the middle of antitheft groove, works as steel When ball is located at antitheft groove deeper part, steel ball does not produce interference, anti-theft nut with the externally threaded movement locus on stud Smoothly can be tightened on stud, when anti-theft nut is dismantled, anti-theft nut is reversely rotated on stud, the external screw thread on stud With spring put on steel ball make a concerted effort force it to be moved to the shallower direction of antitheft groove, the now external screw thread on steel ball and stud Movement locus produce interference, anti-theft nut cannot be reversely rotated again, and backing stop structure forms retaining effect to anti-theft nut. The nut of backing stop structure is provided with when reversely rotating, the moment of torsion that anti-theft nut is subject to is far longer than turning round of being subject to when it is rotated forward Square, even if common wrench does not make boss deform rounding when rotating forward anti-theft nut, when reversely dismantling, due to by larger Torque resistance, boss also can be by rounding, it is impossible to dismantle anti-theft nut, cannot also be dismantled using pipe wrench.
The technical scheme that anti-theft nut in the present invention is used is as follows:The bottom of anti-theft nut is cylindrical structural, top Exceed the boss of cylindrical structural for radial dimension, the outer circumference surface of the boss is provided with the stress clamped for tightening tool and puts down Face, the boss meets following condition along the thickness on its axis of rotation direction:When the resistance that anti-theft nut is rotated reaches setting During value, skidding can be produced between clamping device and the outer circumference surface of boss.
Further, the outer circumference surface of the boss is provided with more than two plane of constraints, and in each two stress Plane on boss circumferencial direction in being respectively arranged at two ends with cambered surface.
Further, the outer circumference surface of the cylindrical structural is provided with more than three tangent planes coordinated for jig.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of one embodiment of the anti-theft nut component in the present invention;
Fig. 2 cuts the dimensional structure diagram of anti-theft nut open for Fig. 1;
Fig. 3 is the dimensional structure diagram that Fig. 1 anti-theft nut components remove antitheft circle;
Fig. 4 is the stereochemical structure schematic views in other directions of Fig. 3.
In accompanying drawing, 1- anti-theft nuts, 2- boss, the antitheft grooves of 3-, 4- blocks, 5- springs, 6- steel balls, 7- tangent planes, in 8- Screw thread, 9- cylindrical structurals, 10- antitheft circles.
Specific embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
As Figure 1-4, anti-theft nut component includes antitheft spiral shell to one embodiment of anti-theft nut component in the present invention Mother 1 and antitheft circle 10, the bottom of the anti-theft nut 1 are the cylindrical structural 9 cooperated with antitheft circle 10, the antitheft circle 10 be enclosed within cylindrical structural 9 and both can relatively rotate.The height that the antitheft circle 10 is turned round in axially direction at it Less than or equal to the height in the same direction of cylindrical structural 9, this difference in height is used to realize that anti-theft nut is being fastened to spiral shell After on post, antitheft circle 10 can still be relatively rotated relative to cylindrical structural 9.The outer circumference surface of the cylindrical structural 9 On be uniformly provided with three tangent planes 7, the tangent plane 7 is easy to fixation of the jig to anti-theft nut 1 in production process, tangent plane 7 Size is adjusted according to the situation of jig.Certainly in other embodiments, can be according to the actual conditions of jig Quantity to tangent plane increases and decreases;The cylindrical structural 9 can also replace with other can be cooperated with antitheft circle 10 and The structure that can be relatively rotated when pipe wrench is clamped, such as multi-edge column-shaped structure.
The top of the anti-theft nut 1 is provided with boss 2, and the boss 2 stretches out along the radial direction of anti-theft nut 1, The radial dimension of boss 2 is more than the radial dimension of cylindrical structural 9, and the radial dimension of boss 2 is more than or equal to antitheft circle 10 Outside dimension, for preventing antitheft circle 10 from departing from from anti-theft nut 1.The boss 2 is along the thickness on its axis of rotation direction Degree is smaller, and thickness is met when the resistance that anti-theft nut is rotated reaches setting value, between clamping device and the outer circumference surface of boss Skidding can be produced, because the torque value for enabling anti-theft nut 1 to rotate is relevant with the contact area of boss 2 and clamping device, According to different torque values, designer can be readily devised the thickness parameter of boss 2, and the height size of boss 2 is basis What the torque being actually needed was designed.The outer circumference surface of the boss 2 is provided with three pairs of plane of constraints being parallel to each other, and In each two plane of constraint in the arc surface that is respectively arranged at two ends with boss circumferencial direction, plane of constraint is clamped for the opening of spanner Stress, certainly in other embodiments, the quantity of plane of constraint can be increased and decreased according to actual needs, the size of plane of constraint Can be adjusted according to the nominal torque of design.
The internal thread wall of the anti-theft nut 1 is provided with antitheft groove 3, bearing of trend and the internal thread 8 of antitheft groove 3 Trend is consistent, and the depth of antitheft groove 3 is that middle depth two ends are shallow.Backing stop structure, the retaining are provided with the antitheft groove 3 Structure includes block 4, spring 5 and steel ball 6, and the two ends of spring 5 are fixedly connected with block 4, steel ball 6 respectively, and block 4 is fixed on institute State the bosom of antitheft groove 3.When anti-theft nut 1 is tightened, the external screw thread on stud put on steel ball 6 pressure make steel ball 6 to Direction motion deeper in the middle of antitheft groove 3, it is outer on steel ball 6 and stud when steel ball is located at the deeper part of antitheft groove 3 The movement locus of screw thread does not produce interference, and anti-theft nut 1 smoothly can be tightened on stud, antitheft when anti-theft nut 1 is dismantled Nut 1 is reversely rotated on stud, and what the external screw thread and spring 5 on stud put on steel ball 6 makes a concerted effort to force it to antitheft groove 3 Shallower direction motion, the now externally threaded movement locus generation interference on steel ball 6 and stud, anti-theft nut 1 cannot enter again Row is reversely rotated, and backing stop structure forms retaining effect to anti-theft nut.In other embodiments, the antitheft groove 3 can also It is wedge-shaped impression, one end depth of wedge-shaped impression is deeper, and the depth of the other end is shallower, the backing stop structure can not also include gear Block, spring one end is fixed with steel ball, and the other end of spring is fixed in the tapered wall of the deeper one end of wedge-shaped impression depth.
When in use, anti-theft nut 1 is cased with one end of antitheft circle 10 towards stud, using the open card of common wrench convex Anti-theft nut 1 is tightened on two faces of the excircle of platform 2.When thief carries out dismounting anti-theft nut 1, spanner is used Boss 2 is reversely rotated, in the presence of backing stop structure, reversely rotating needs very big moment of torsion, due to stress on anti-theft nut 1 Face be mainly two plane of constraints on the excircle of boss 2, and the thickness of boss 2 is smaller, causes connecing for spanner and boss 2 Contacting surface product is smaller, when the power that spanner puts on boss 2 is more than the design rating of boss 2, two plane of constraints on boss 2 Can deform and by spanner rounding, spanner skids in the outer circumference surface of boss 2 and cannot make the stress of anti-theft nut 1, also cannot just prevent Nut 1 is stolen to disassemble.When forcing to dismantle using pipe wrench, if pipe wrench clamping boss 2, the thickness of boss 2 is smaller cause its with Contact area between pipe wrench is too small, and pipe wrench cannot provide enough moments of torsion and disassemble anti-theft nut 1;When pipe wrench clamping is anti- When stealing circle 10, antitheft circle 10 relatively rotates with cylindrical structural 9, and pipe wrench cannot also realize the dismounting to anti-theft nut 1.This Scheme can be realized preventing the antitheft of general tool again the pressure of socket wrench tools to dismantle, with good anti-theft effect.

Claims (10)

1. a kind of anti-theft nut component, including anti-theft nut, the bottom of the anti-theft nut is cylindrical structural, cylindrical structural On be cased with the antitheft circle that can relatively rotate, the top of anti-theft nut exceedes the boss of cylindrical structural for radial dimension, described convex The outer circumference surface of platform is provided with the plane of constraint clamped for tightening tool, it is characterised in that:The boss is along its axis of rotation side Upward thickness meets following condition:When the resistance that anti-theft nut is rotated reaches setting value, clamping device is cylindrical with boss Skidding can be produced between side face.
2. anti-theft nut component according to claim 1, it is characterised in that:The outer circumference surface of the boss is provided with two More than plane of constraint, and in each two plane of constraint in being respectively arranged at two ends with cambered surface on boss circumferencial direction.
3. anti-theft nut component according to claim 1, it is characterised in that:The outer circumference surface of the cylindrical structural is provided with More than three tangent planes coordinated for jig.
4. anti-theft nut component according to claim 1, it is characterised in that:The radial dimension of the boss is more than or equal to The outside dimension of antitheft circle.
5. anti-theft nut component according to claim 4, it is characterised in that:The antitheft circle is along its axis of rotation direction Highly less than or equal to the height of cylindrical structural.
6. the anti-theft nut component according to claim any one of 1-5, it is characterised in that:The internal thread of the anti-theft nut Wall is provided with antitheft groove, and the bearing of trend of antitheft groove is consistent with the trend of screw thread, and the depth of antitheft groove is middle deep Two ends are shallow.
7. anti-theft nut component according to claim 6, it is characterised in that:Backing stop structure is provided with the antitheft groove, The backing stop structure includes block, spring and steel ball, and the two ends of spring are fixedly connected with block, steel ball respectively, and block is fixed on The bosom of the antitheft groove.
8. a kind of anti-theft nut, the bottom of the anti-theft nut is cylindrical structural, and top is that radial dimension exceedes cylinder and ties The boss of structure, the outer circumference surface of the boss is provided with the plane of constraint clamped for tightening tool, it is characterised in that:The boss Meet following condition along the thickness on its axis of rotation direction:When the resistance that anti-theft nut is rotated reaches setting value, work is clamped Skidding can be produced between tool and the outer circumference surface of boss.
9. anti-theft nut according to claim 8, it is characterised in that:The outer circumference surface of the boss is provided with two or more Plane of constraint, and in each two plane of constraint in being respectively arranged at two ends with cambered surface on boss circumferencial direction.
10. anti-theft nut according to claim 8, it is characterised in that:The outer circumference surface of the cylindrical structural is provided with three The tangent plane coordinated for jig more than individual.
CN201710170301.2A 2017-03-21 2017-03-21 A kind of anti-theft nut component and anti-theft nut Pending CN106763099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710170301.2A CN106763099A (en) 2017-03-21 2017-03-21 A kind of anti-theft nut component and anti-theft nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710170301.2A CN106763099A (en) 2017-03-21 2017-03-21 A kind of anti-theft nut component and anti-theft nut

Publications (1)

Publication Number Publication Date
CN106763099A true CN106763099A (en) 2017-05-31

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CN201710170301.2A Pending CN106763099A (en) 2017-03-21 2017-03-21 A kind of anti-theft nut component and anti-theft nut

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846666A (en) * 2021-03-13 2021-05-28 钟东明 Manufacturing process of anti-theft screw

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201027785Y (en) * 2007-05-20 2008-02-27 胡秋庆 Lock nut with polyhedral outer axial part
CN201041186Y (en) * 2007-04-23 2008-03-26 陈四甫 Theft-proof nut
CN201262183Y (en) * 2008-08-06 2009-06-24 姜永磊 Spring ball type anti-theft locknut
CN203835926U (en) * 2014-05-14 2014-09-17 南京凯驰标准件有限公司 Round anti-theft nut
CN105697505A (en) * 2015-07-19 2016-06-22 深象紧固系统(深圳)有限公司 Theftproof nut
CN106321605A (en) * 2015-06-20 2017-01-11 河南四达电力设备股份有限公司 Round compound theftproof nut
CN206770373U (en) * 2017-03-21 2017-12-19 河南丰佳电力设备有限公司 Anti-theft nut component and anti-theft nut

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201041186Y (en) * 2007-04-23 2008-03-26 陈四甫 Theft-proof nut
CN201027785Y (en) * 2007-05-20 2008-02-27 胡秋庆 Lock nut with polyhedral outer axial part
CN201262183Y (en) * 2008-08-06 2009-06-24 姜永磊 Spring ball type anti-theft locknut
CN203835926U (en) * 2014-05-14 2014-09-17 南京凯驰标准件有限公司 Round anti-theft nut
CN106321605A (en) * 2015-06-20 2017-01-11 河南四达电力设备股份有限公司 Round compound theftproof nut
CN105697505A (en) * 2015-07-19 2016-06-22 深象紧固系统(深圳)有限公司 Theftproof nut
CN206770373U (en) * 2017-03-21 2017-12-19 河南丰佳电力设备有限公司 Anti-theft nut component and anti-theft nut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112846666A (en) * 2021-03-13 2021-05-28 钟东明 Manufacturing process of anti-theft screw

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Application publication date: 20170531

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