CN108105248A - A kind of dismountable locking, anti-theft bolt structure - Google Patents
A kind of dismountable locking, anti-theft bolt structure Download PDFInfo
- Publication number
- CN108105248A CN108105248A CN201711312652.9A CN201711312652A CN108105248A CN 108105248 A CN108105248 A CN 108105248A CN 201711312652 A CN201711312652 A CN 201711312652A CN 108105248 A CN108105248 A CN 108105248A
- Authority
- CN
- China
- Prior art keywords
- bolt
- nut
- screw thread
- epimere
- spiral
- 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
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
-
- 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
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/77—Use of a shape-memory material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The present invention relates to a kind of dismountable locking, anti-theft bolt structure, it is made of screw bolt and nut, it is characterized in that the thread segment of bolt is made into integration by two sections, the screw thread of two sections is identical, but the diameter of epimere is less than the diameter of hypomere, it is allowed to not contact with the screw thread of nut, the screw thread of epimere and the screw thread of hypomere stagger half pitch, make the tooth peak of the screw thread of epimere, tooth paddy and the tooth peak of nut top screw thread, tooth paddy is opposite respectively, the clamp spring made of shape memory alloy material is put in opposite spiral circuferential spacing at least one of the spiral circumference space content formed of above-mentioned bolts and nuts tooth paddy, the internal thread number of turns of nut is more than the bolt hypomere external screw thread number of turns, the screw thread of bolt hypomere and the thread fitting of nut lower part.
Description
Technical field
The present invention relates to fastener, more particularly to a kind of dismountable anti-theft bolt.
Background technology
Bolt is most common fastener, tightens or dismantles by standard tools such as spanners, can be widely used in various need
The occasion to be fastened.Much electric appliances or device outdoors is fixed with bolt, such as automotive number plate, wheel, accumulator, road
Lamp electric appliance, transformer, outdoor machine of air-conditioner etc., robber only need to be with spanners with regard to detachable.Has there are a variety of anti-theft bolts in the prior art,
Most of anti-theft bolts are that hexagonal (hexagon)nut is changed to abnormity, are twisted into two parts without the counter-rotational point of application or by hexagonal (hexagon)nut, as in
Disclosed in state's patent 200910191325.1 shown in a kind of anti-demounting bolt.These schemes are all to make bolt permanently non-disconnectable
It unloads, but actually more devices are to need removably, such as repair, resettlement etc., it is special that this just needs outfit to be adapted
Instrument, these specific purpose tools can largely exist, as long as copying out or borrowing to specific purpose tool, still cannot solve stolen ask
Topic.
In addition, needing to prevent from loosening after bolt fastening, the most commonly used is spring washer, but effectively locking reliability is not
It is high.Chinese patent 02231475.X describes a kind of self-locking anti-theft bolt, and at least one groove, the groove are equipped on screw rod
The both ends of the surface axis perpendicular with screw rod respectively, the bottom surface of groove and the axis phase hemistich of screw rod, the side of groove is concave curved
Face, groove from shallow consistent with the thread rotary orientation on bolt to deep direction, the side length of groove is slightly longer than the straight of steel ball
Footpath.In use, steel ball is placed in the groove of bolt, nut is threaded to the groove of bolt.When nut is when tightening, nut will not
It is stuck；It conversely, nut is stuck, can not revolve nut.Therefore the solution of current art also exists in addition to irreversible
It is complicated, processing difficulties, it is opposite with high costs the defects of.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming present in the prior art, provide a kind of available standards work
Tool turns, of simple structure and low cost and dismountable locking, anti-theft bolt structure.
Technical scheme is as follows：A kind of dismountable locking, anti-theft bolt structure, is made of screw bolt and nut,
It is characterized in that the thread segment of bolt is made into integration by two sections, the screw thread of two sections is identical, but the diameter of epimere is less than
The diameter of hypomere is allowed to not contact with the screw thread of nut, and the screw thread of epimere and the screw thread of hypomere stagger half pitch, make epimere
The tooth peak of screw thread, the tooth peak of tooth paddy and nut top screw thread, tooth paddy are opposite respectively, in above-mentioned bolts and nuts tooth paddy with respect to institute's shape
Into spiral circuferential spacing at least one of spiral circumference space content put the clamp spring made of shape memory alloy material, nut
The internal thread number of turns more than the bolt hypomere external screw thread number of turns, the screw thread of bolt hypomere and the thread fitting of nut lower part.
The clamp spring helically oval c-type circle at room temperature；It is spiral circle c-type circle after heating, just binds round on bolt
In the tooth paddy of section screw thread.In this way, heating when mounted, clamp spring is that circular c-type circle will not be contacted with the internal thread of nut, and makes spiral shell
The screw thread of bolt hypomere coordinates with nut thread.After installing, with the reduction of temperature, clamp spring is restored to spiral ellipse c-type circle,
Its different position is stuck in the tooth paddy of nut thread and bolt thread simultaneously respectively, and bolt cannot continue to retreat.
The length of the bolt epimere is 1-3 screw pitch.
The present invention needs dismounting after being fastened dedicated for bolt and locking, antitheft occasion, nut can directly use standard component,
Bolt uses standard component machine-shaping, can be tightened using standard tool.Since clamp spring is made in continuous helix tooth paddy
Deformed movement has the characteristics that step-less adjustment locks elasticity, and connected piece thickness accommodation is larger, because no matter bolt revolves
It into which kind of position, all can automatically be locked in the precession position after cooling, generate reliable auto-lock function, nut will not be voluntarily loose
It is de-, i.e., it also can not fall to twist using spanner, there is higher retaining anti-theft feature.The present invention breaches traditional clamp spring and is only capable of one
A specific annular spring groove location locking, the single restriction of connected piece thickness.When disassembly is desired, if at nut into
Row heating, makes clamp spring be separated with nut, you can is exited with spanner, avoids traditional destructive dismounting, reduce waste.
Description of the drawings
The particular content that the present invention is furture elucidated with reference to the accompanying drawings and embodiments.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the top view or bottom view of product shown in Fig. 1.
Top views of the Fig. 3 for clamp spring 3 in Fig. 1 after heated.
Fig. 4 is 3 top view after cooling of clamp spring in Fig. 1.
Description of symbols in figure：1st, bolt；11st, the tooth paddy of bolt thread；12nd, the tooth peak of bolt thread；2nd, nut；21st, spiral shell
The tooth paddy of box thread；22nd, the tooth peak of nut thread；200th, spiral circuferential spacing；3rd, clamp spring.
Specific embodiment
It is described below to disclose the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Referring to the drawings, the thickness of nut 2 of the invention should be greater than the length of bolt hypomere, to reserve spiral shell in several circles of upper end
Line is corresponding with the epimere external screw thread of bolt, is used for locking.The head of standard component bolt 1 is subjected to undergauge processing with lathe, is contracted
The spiral shell that mass runoff is slightly over its screw thread is deep, is subject to when stretching into nut and is not contacted with the screw thread of nut.Undergauge section is known as epimere, not
Undergauge section is known as hypomere, and the length of epimere is advisable with 1-3 screw pitch, and hypomere is the fastening function section with nut thread cooperation.
The epimere half pitch that first staggers processes 1-3 circle screw threads, and the screw thread of upper-lower section is identical, in this way, when bolts and nuts thread fitting
When, the tooth peak 12 of bolt epimere screw thread, the tooth peak 22 of tooth paddy 11 and nut thread, tooth paddy 21 are opposite respectively, tooth paddy 11 and tooth paddy
21 form the spiral circuferential spacing 200 that can house clamp spring.
Clamp spring 3 is made of shape memory alloy material, which is with round trip memory function namely cold conditions (normality)
Straight line strip, hot is bung flange shape, and deformation temperature is more than 100 DEG C.In use, it is equivalent to bolt intercepting a segment length under normal conditions
The lines of the perimeter of epimere thread paddy are around in the tooth paddy of bolt epimere screw thread, then with baking rifle to the marmem
Lines heat, and are allowed to lock ring in the clamp spring 3 that spiral circle c-type circle is formed in the tooth paddy 11 of bolt epimere screw thread, at this moment clamp spring 3
Maximum gauge is less than the minimum diameter of nut thread, and clamp spring 3 is not contacted with the screw thread of nut when so that the bolt epimere is stretched into nut, after
It is continuous to turn bolt or nut with spanner, until fastening finishes.Hereafter, with the reduction of temperature, clamp spring 3 is gradually to vertical element trend
Recover shape, but due to the limitation of nut thread tooth paddy, ultimately form spiral ellipse c-type loop-shaped and become normality.Due to card
Spring is located in the spiral space that tooth paddy 11 and tooth paddy 12 are formed, and the long axis both ends of oval c-type spiral round clamp spring are stuck in nut
In tooth paddy 12, the short axle end of oval c-type spiral coil is stuck in bolt tooth paddy 11, at this moment also can not rotating bolt or spiral shell with spanner
Mother so as to fulfill the lock function of clamp spring, achievees the purpose that locking, antitheft.
If shape memory alloy wire item 2-3 in the tooth paddy of bolt epimere screw thread is enclosed, ellipse spiral shell can be formed after cooling
Revolve spring-like, it will there are more positions to be stuck in respectively in nut teeth paddy 12 and bolt tooth paddy 11, retaining performance is relatively reliable, fits
For higher vehicles etc. to be required to shake larger device.
When needing to have the larger scope of application to connected piece, nut can be made thicker, be allowed to compared with multi-turn
Internal thread, for example be formed with 10 internal threads, wherein 5 be used as with used in bolt thread cooperation fastening, then 5 other threads
Paddy can be used in clamp spring the suitable thicknesses excursion of locking namely connected piece being coordinated to be equivalent to the sum of 5 screw pitch.
When needing provision for disengagement, as long as being heated with rifle is dried to nut, it is restored to the clamp spring of the shape memory in nut
Lock ring is separated in the spiral Circles in the tooth paddy 11 of bolt epimere screw thread, clamp spring with nut, you can nut is unclamped with spanner, it is real
Now dismountable purpose.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (4)
1. a kind of dismountable locking, anti-theft bolt structure, is made of screw bolt and nut, it is characterised in that the thread segment of bolt by
Two sections are made into integration, and the screw thread of two sections is identical, but the diameter of epimere is less than the diameter of hypomere, is allowed to the spiral shell with nut
Line does not contact, and the screw thread of epimere and the screw thread of hypomere stagger half pitch, makes tooth peak, tooth paddy and the nut top of the screw thread of epimere
The tooth peak of screw thread, tooth paddy are opposite respectively, in the opposite spiral circuferential spacing at least one formed of above-mentioned bolts and nuts tooth paddy
Road spiral circumference space content puts the clamp spring made of shape memory alloy material, and the internal thread number of turns of nut is more than bolt hypomere
The external screw thread number of turns, the screw thread of bolt hypomere and the thread fitting of nut lower part.
2. dismountable locking, anti-theft bolt structure according to claim 1, it is characterised in that the clamp spring is being under normal conditions
Spiral ellipse c-type circle；Deformation state is spiral circle c-type circle, is just bound round opposite with nut teeth paddy formed in bolt epimere
In spiral circuferential spacing.
3. dismountable locking, anti-theft bolt structure according to claim 2, it is characterised in that the spiral circle c-type circle
Outer diameter be slightly less than the minimum diameter of nut.
4. dismountable locking, anti-theft bolt structure according to claim 1, it is characterised in that the length of the bolt epimere
For 1-3 screw pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711312652.9A CN108105248A (en) | 2017-12-01 | 2017-12-01 | A kind of dismountable locking, anti-theft bolt structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711312652.9A CN108105248A (en) | 2017-12-01 | 2017-12-01 | A kind of dismountable locking, anti-theft bolt structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108105248A true CN108105248A (en) | 2018-06-01 |
Family
ID=62209489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711312652.9A Pending CN108105248A (en) | 2017-12-01 | 2017-12-01 | A kind of dismountable locking, anti-theft bolt structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105248A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN111022477A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Bolt anti-loosening clamp spring and manufacturing method thereof |
| CN111720420A (en) * | 2020-07-06 | 2020-09-29 | 航天精工股份有限公司 | Novel anti-loosening structure bolt and installation method thereof |
| CN113124035A (en) * | 2019-12-31 | 2021-07-16 | 苏州佳世达光电有限公司 | Anti-dismantling system, anti-dismantling combination and dismantling tool |
| US11485169B2 (en) * | 2019-01-29 | 2022-11-01 | Design Infini, Inc. | Lug accessories for automobile wheel with dual bolt patterns |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469106A1 (en) * | 2010-12-23 | 2012-06-27 | Lazzaro Groppo | Antitheft locking device. |
| CN102678714A (en) * | 2012-05-28 | 2012-09-19 | 赵群燕 | Dismountable riveted structure |
| CN102691712A (en) * | 2012-05-28 | 2012-09-26 | 赵群燕 | Detachable anti-loosing and anti-theft bolt structure |
-
2017
- 2017-12-01 CN CN201711312652.9A patent/CN108105248A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469106A1 (en) * | 2010-12-23 | 2012-06-27 | Lazzaro Groppo | Antitheft locking device. |
| CN102678714A (en) * | 2012-05-28 | 2012-09-19 | 赵群燕 | Dismountable riveted structure |
| CN102691712A (en) * | 2012-05-28 | 2012-09-26 | 赵群燕 | Detachable anti-loosing and anti-theft bolt structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11485169B2 (en) * | 2019-01-29 | 2022-11-01 | Design Infini, Inc. | Lug accessories for automobile wheel with dual bolt patterns |
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN110925288B (en) * | 2019-12-13 | 2023-03-14 | 成都理工大学 | Quick and reliable locknut suit |
| CN111022477A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Bolt anti-loosening clamp spring and manufacturing method thereof |
| CN113124035A (en) * | 2019-12-31 | 2021-07-16 | 苏州佳世达光电有限公司 | Anti-dismantling system, anti-dismantling combination and dismantling tool |
| CN113124035B (en) * | 2019-12-31 | 2024-05-14 | 苏州佳世达光电有限公司 | Anti-disassembly system, anti-disassembly combination and disassembly tool |
| CN111720420A (en) * | 2020-07-06 | 2020-09-29 | 航天精工股份有限公司 | Novel anti-loosening structure bolt and installation method thereof |
| CN111720420B (en) * | 2020-07-06 | 2022-01-28 | 航天精工股份有限公司 | Anti-loosening structure bolt and mounting method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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: 20180601 |
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| RJ01 | Rejection of invention patent application after publication |