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 PDFInfo
- 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
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- 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
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- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 210000000481 breast Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002153 concerted effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- 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
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.
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 |
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CN106763099A true CN106763099A (en) | 2017-05-31 |
Family
ID=58967201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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)
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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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 |
-
2017
- 2017-03-21 CN CN201710170301.2A patent/CN106763099A/en active Pending
Patent Citations (7)
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)
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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PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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