CN204739074U - Anti -theft nut - Google Patents
Anti -theft nut Download PDFInfo
- Publication number
- CN204739074U CN204739074U CN201520523818.1U CN201520523818U CN204739074U CN 204739074 U CN204739074 U CN 204739074U CN 201520523818 U CN201520523818 U CN 201520523818U CN 204739074 U CN204739074 U CN 204739074U
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- CN
- China
- Prior art keywords
- nut
- theft
- nut body
- overcoat
- tight lock
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- 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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Abstract
The utility model discloses an anti -theft nut, including nut body and nut overcoat, the whole holding of nut body is in the nut overcoat, and the footpath peripherad of the locking portion of nut body has prismatic alternate connection structure with the cylinder. Nut overcoat defence extracting tool commonly used is to the dismantlement of nut, and overall structure is simple, processing technology is simple, make low cost, need the anti -theft nut both sides to adopt purpose -built instrument can realize dismantling simultaneously, improve the theftproof grade greatly.
Description
Technical field
The utility model relates to technical field of fastening, discloses a kind of anti-theft nut especially.
Background technique
Fastening piece be exactly fastening two or more parts (or component) be fastenedly connected become one overall time the general name of class mechanical parts that adopts.Nut is one of the most widely used fastening piece, and namely nut is the part got up by machinery compact siro spinning technology, by the screw thread of inner side, links together use with equivalent specifications nuts and bolt.
China to loosen or artificial theft destruction causes communal facility property and personal safety loss can reach more than more than one hundred million unit because the component place of company of mechanical department connects every year, runs bring very large impact to the health of national economy.Therefore, anti-theft nut obtains and uses widely and deep research.Anti-theft nut is mainly used in the series product that mechanical component connects the anti-loose anti-theft of fastening position, mainly comprise spiral wedge shape anti-loose anti-theft nut, twisting and sliding type anti-theft nut, needle-type anti-theft nut, the types such as ball type anti-theft nut, its profile essential shape is hexagon.
Patent CN202391922U discloses a kind of professional electric anti-theft hexagon nut, comprises nut body, and the tapped hole inwall of nut body is provided with antitheft groove, and described antitheft bottom portion of groove is arc, and diameter is greater than the internal thread nominal diameter of nut body; Antitheft inside grooves is provided with ball, is spring bottom ball.During dismounting, spring jack-up ball, stops nut body to rotate, plays anti-theft function.Patent CN101429962A discloses this anti-theft nut a kind of, comprise nut body, screwed hole of centre, described nut body is set to circular cone, the conical surface of described nut circular cone is provided with several shallow pit pattern, when by nut precession, turn-knob power is downward and to side, and shallow pit pattern plays Point of Strength during nut precession, to nut is screwed out, turn-knob power will upwards with to side, and its Point of Strength is ineffective, reaches antitheft object.Patent CN101644294A discloses a kind of anti-theft nut, the sphere comprising bottom surface and be connected with bottom surface, and described sphere is made up of two or more continuous curve surface, and the side imbricate of curved surface is in another curved surface be adjacent, and curved surface overlapping is provided with draw-in groove.The structure that sphere and bottom surface directly combine, makes common wrench hold nut and to turn on.Patent CN103790920A discloses a kind of anti-theft nut, has nut body, and described nut body external frame is circular, and end face is provided with three deep gouges, three deep gouge Pin form distributions; General instrument cannot unscrew, effectively antitheft.Patent CN104675835A anti-theft nut, comprise the nut with bolt body screw-thread fit, nut sidewall is provided with the inclined hole in oblique fastening nuts direction, pellet, spring and rivet is provided with successively from the inside to the outside in inclined hole, described pellet comprises a round and smooth point, and round and smooth point stretches out outside the inner orifice of inclined hole under the thrust of spring, the outer aperture of inclined hole blocks by rivet, and nut inner circle is provided with the plastic plug of Spielpassung.Above-mentioned patented technology mainly sets up jam parts in the structure of nut itself, thus realizes anti-theft feature, and complicated integral structure, difficulty of processing are large, fabricating cost is high.
Patent CN 2767738Y discloses a kind of anti-theft nut, be made up of anti-theft protective cover, anti-theft nut, bolt, anti-theft nut is connected with bolt thread, have matrix anti-theft protective cover at anti-theft nut overcoat, anti-theft nut top adopts pentagon shape, has matrix anti-theft protective cover at anti-theft nut overcoat, anti-theft nut top adopts pentagon shape, use current general pipe wrench, standard wrench can not dismantle, effectively prevent the stolen loss of wellhead hardware, ensure the production safety of oil well.Patent CN201973067U side pin anti-theft nut, comprises nut body and protective coat, and described nut body inside has screw thread, and outside has cylindrical structural; Described protective coat inside has has jurisdiction over the structure of nut body, and outside has prism structure; Nut body is inner at protective coat; Have a hole penetrated at protective coat sidepiece, direction from outside to inside, described hole is the direction tightened with anti-theft nut is consistent, in hole, have block, spring from the inside to the outside, and aperture pin block is closed.Patent CN203488529U discloses a kind of anti-theft nut, is made up of hexagonal overcoat and cylindrical thread inner sleeve, and screw thread inner sleeve is female thread structure; Hexagonal overcoat inner hole section shape is circular; Lock is embedded in the outer side surface of hexagonal overcoat; Described lock construction is made up of bullet lock master and dead bolt; On the hexagonal perpendicular to lock core is overlapped outward, a lock-tongue hole is set; One dead bolt is set in lockhole, dead bolt has groove; In stirring of arranging bottom the lock core groove that post is stuck on dead bolt; Screw thread inner sleeve top external diameter arranges a circle groove; Hexagonal overcoat upper inner diameter is arranged a circle groove, be provided with opening jump ring in groove, hexagonal overcoat is connected by opening jump ring with screw thread inner sleeve; Screw thread sidewall of the inside race has a lockhole, lockhole is communicated with the lock-tongue hole put outside hexagonal.Above-mentioned patented technology has set about introducing nut protective coat structure, but itself and the hidden function making full use of nut protective coat are to improve the anti-theft grade of nut, its antitheft major technique still relies on the jam parts on nut, such that overall structure is more complicated, difficulty of processing is large, fabricating cost is high.
Model utility content
The purpose of this utility model is to provide a kind of anti-theft nut, nut body entirety is placed in nut overcoat by it, the conventional extracting tool of nut overcoat defence is to the dismounting of nut, and adopt special tight lock part structure, need anti-theft nut both sides to adopt special instrument can realize dismounting simultaneously, greatly improve anti-theft grade.
The utility model provides a kind of anti-theft nut, comprising:
Nut body, the female through hole of tool; And
Nut overcoat, for holding nut body, having and coordinating through through hole with the internal thread through hole of nut body;
Nut body entirety is placed in nut overcoat.
Preferably, nut body comprises
Joint, is connected for mating with nut overcoat;
Tight lock part, is connected with joint, for locking and demolition nut body; With
Through hole, runs through joint and tight lock section is arranged vertically, and hole wall is provided with internal thread.
Preferably, described nut overcoat comprises
Fit portion, for mating the joint of cover and nut body; With
Holding part, for the tight lock section of accommodating nut body, and is reserved with the tight lock part of space for external tool operating nut body.
Hide with nut overcoat inner by nut body entirety, because nut overcoat not being dismantled the space of nut, nut overcoat plays the defense reaction to the common extracting tool such as adjustable spanner, vice; On the other hand, the dismounting of nut body needs both sides to adopt special extracting tool to coordinate can to carry out simultaneously, simultaneously by the restriction in the holding part space of nut overcoat, the extracting tool that market is commonly used does not possess enough operating spaces, needs special special extracting tool to dismantle; Thus improve the anti-theft grade of nut, the outdoor Environmental Conditions such as communication base station, electric distribution cabinet can be widely used in.
Preferably, the joint of nut body is the cone boss arranged along the axial one end of nut body, corresponding, the fit portion of nut overcoat is the tapered portion of the axial one end setting along nut overcoat, and described tapered portion mates fit with nut body cone boss.
Preferably, described cone boss cross section is vertically antiparallelogram, and preferably, described trapezoidal base angle is 45 °-60 °.
Preferably, described cone boss length is vertically tight lock part ratio is along the axial length 1:0.5-2.
Preferably, the outer radial periphery of the tight lock part of nut body is prism linkage structure alternate with cylinder; Be specially, same many circular arcs are circumferentially alternate with the flat-cut line of corresponding equal number to be connected to form.
Preferably, prism linkage structure alternate with cylinder is specially, same three circular arcs circumferentially with corresponding three flat-cut line is alternate is connected to form, the central angle that described circular arc is corresponding is 45 °-60 °.
Nut body adopts bulk shape triangular in shape, and there is the structure of prism cooperation alternate with cylinder, need the extracting tool of special coupling to unlock, and the extracting tool such as adjustable spanner, vice conventional on market does not possess ability to dismantle, thus improve the anti-theft grade of nut further.
Preferably, nut overcoat holding part is cylindrical structure, and its external diameter is greater than the circumscribed diameter of nut body tight lock part, to form the sufficient space of the tight lock part of special extracting tool operating nut body.
The beneficial effects of the utility model have:
1, nut body entirety is placed in nut overcoat, and the conventional extracting tool of nut overcoat defence is to the dismounting of nut, and overall structure is simple, processing technology is simple, fabricating cost is cheap.
What 2, adopt cone boss and tapered portion mates shrink-fit structure, needs anti-theft nut both sides to adopt special instrument can realize dismantling simultaneously, greatly improves anti-theft grade.
3, nut body adopts bulk shape triangular in shape, and has the structure of prism cooperation alternate with cylinder, needs the extracting tool of special coupling to unlock, and improves the anti-theft grade of nut further.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the perspective view of anti-theft nut of the present utility model.
Fig. 2 is the sectional structure schematic diagram of anti-theft nut of the present utility model.
Fig. 3 be anti-theft nut of the present utility model look up structural representation.
Fig. 4 is the sectional structure schematic diagram of the nut body of the utility model anti-theft nut.
Fig. 5 be the nut body of the utility model anti-theft nut look up structural representation.
Fig. 6 is the plan structure schematic diagram of the nut overcoat of the utility model anti-theft nut.
Fig. 7 is A-A sectional structure schematic diagram in Fig. 6.
In figure, 1-nut body, 2-nut overcoat, 11-joint, 12-tight lock part, 13-internal thread through hole, 21-fit portion, 22-holding part.
Embodiment
The present embodiment is the utility model preferred implementation, and other its principles all are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
Incorporated by reference to referring to accompanying drawing 1 to 7, anti-theft nut of the present utility model, comprising:
Nut body 1, has internal thread through hole; Comprise
Joint 11, is connected for mating with nut overcoat 2;
Tight lock part 12, is connected with joint, for locking and demolition nut body; With
Internal thread through hole 13, hole wall is provided with internal thread; And
Nut overcoat 2, for holding nut body 1, having and coordinating through through hole with the internal thread through hole of nut body 1; Comprise
Fit portion 21, for mating the joint 11 of cover and nut body 1;
Holding part 22, for accommodating nut body 1, and is reserved with the tight lock part 12 of space for external tool operating nut body 1;
Nut body 1 entirety is placed in nut overcoat 2;
Wherein, nut overcoat 2 holding part 22 is cylindrical structure, and its external diameter is greater than the circumscribed diameter of nut body 1 tight lock part 12;
Concrete, the joint 11 of nut body 1 is the cone boss arranged along the axial one end of nut body 1, corresponding, the fit portion 21 of nut overcoat 2 is the tapered portion of the axial one end setting along nut overcoat, and described tapered portion mates fit with nut body cone boss;
Described cone boss cross section is vertically antiparallelogram, and described trapezoidal base angle is 60 °, and this base angle can be arranged according to needs, is preferably selected within the scope of 45 °-60 °;
Described cone boss length is vertically that tight lock part is equal along the axial length, and both length Billys can be selected according to needs certainly, are preferably selected in the scope of 1:0.5-2.
As preferred version of the present utility model, the outer radial periphery of the tight lock part 12 of nut body 1 is prism linkage structure alternate with cylinder; Be specially, same many circular arcs are circumferentially alternate with the flat-cut line of corresponding equal number to be connected to form.Further preferred, prism linkage structure alternate with cylinder is specially, same three circular arcs circumferentially with corresponding three flat-cut line is alternate is connected to form, the central angle that described circular arc is corresponding is 60 °.
Hide with nut overcoat inner by nut body entirety, because nut overcoat not being dismantled the space of nut, nut overcoat plays the defense reaction to the common extracting tool such as adjustable spanner, vice; On the other hand, the dismounting of nut body needs both sides to adopt special extracting tool to coordinate can to carry out simultaneously, simultaneously by the restriction in the holding part space of nut overcoat, the extracting tool that market is commonly used does not possess enough operating spaces, needs special special extracting tool to dismantle; Thus improve the anti-theft grade of nut, the outdoor Environmental Conditions such as communication base station, electric distribution cabinet can be widely used in.
Nut body adopts bulk shape triangular in shape, and there is the structure of prism cooperation alternate with cylinder, need the extracting tool of special coupling to unlock, and the extracting tool such as adjustable spanner, vice conventional on market does not possess ability to dismantle, thus improve the anti-theft grade of nut further.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (10)
1. an anti-theft nut, is characterized in that: comprising:
Nut body, the female through hole of tool; And
Nut overcoat, for holding nut body, having and coordinating through through hole with the internal thread through hole of nut body;
Nut body entirety is placed in nut overcoat.
2. anti-theft nut according to claim 1, is characterized in that: nut body comprises:
Joint, is connected for mating with nut overcoat;
Tight lock part, is connected with joint, for locking and demolition nut body; With
Through hole, runs through joint and tight lock section is arranged vertically, and hole wall is provided with internal thread.
3. anti-theft nut according to claim 2, is characterized in that: nut overcoat comprises:
Fit portion, for mating the joint of cover and nut body; With
Holding part, for the tight lock section of accommodating nut body, and is reserved with the tight lock part of space for external tool operating nut body.
4. anti-theft nut according to claim 3, it is characterized in that: the joint of nut body is the cone boss arranged along the axial one end of nut body, corresponding, the fit portion of nut overcoat is the tapered portion of the axial one end setting along nut overcoat, and described tapered portion mates fit with nut body cone boss.
5. anti-theft nut according to claim 4, is characterized in that: described cone boss cross section is vertically antiparallelogram.
6. anti-theft nut according to claim 4, is characterized in that: described cone boss length is vertically tight lock part ratio is along the axial length 1:0.5-2.
7. anti-theft nut according to claim 2, is characterized in that: the outer radial periphery of the tight lock part of nut body is prism linkage structure alternate with cylinder.
8. anti-theft nut according to claim 7, is characterized in that: prism linkage structure alternate with cylinder is specially, and same many circular arcs are circumferentially alternate with the flat-cut line of corresponding equal number to be connected to form.
9. anti-theft nut according to claim 8, is characterized in that: prism linkage structure alternate with cylinder is specially, same three circular arcs circumferentially with corresponding three flat-cut line is alternate is connected to form, the central angle that described circular arc is corresponding is 45 °-60 °.
10. anti-theft nut according to claim 3, is characterized in that: nut overcoat holding part is cylindrical structure, and its external diameter is greater than the circumscribed diameter of nut body tight lock part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523818.1U CN204739074U (en) | 2015-07-19 | 2015-07-19 | Anti -theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520523818.1U CN204739074U (en) | 2015-07-19 | 2015-07-19 | Anti -theft nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739074U true CN204739074U (en) | 2015-11-04 |
Family
ID=54420812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520523818.1U Expired - Fee Related CN204739074U (en) | 2015-07-19 | 2015-07-19 | Anti -theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739074U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912896A (en) * | 2015-05-13 | 2015-09-16 | 苏州闪联高压电器有限公司 | Anti-theft nut and special sleeve |
| CN105697505A (en) * | 2015-07-19 | 2016-06-22 | 深象紧固系统（深圳）有限公司 | Theftproof nut |
| CN107567549A (en) * | 2015-04-17 | 2018-01-09 | 卡特彼勒公司 | It is removably attached to the tool holding system of the lid of fastener head and the wedge-shaped component including fixture and with this lid |
| CN114227610A (en) * | 2021-12-01 | 2022-03-25 | 康威通信技术股份有限公司 | Nut, disassembling tool and using method thereof |
-
2015
- 2015-07-19 CN CN201520523818.1U patent/CN204739074U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107567549A (en) * | 2015-04-17 | 2018-01-09 | 卡特彼勒公司 | It is removably attached to the tool holding system of the lid of fastener head and the wedge-shaped component including fixture and with this lid |
| CN104912896A (en) * | 2015-05-13 | 2015-09-16 | 苏州闪联高压电器有限公司 | Anti-theft nut and special sleeve |
| CN105697505A (en) * | 2015-07-19 | 2016-06-22 | 深象紧固系统（深圳）有限公司 | Theftproof nut |
| CN114227610A (en) * | 2021-12-01 | 2022-03-25 | 康威通信技术股份有限公司 | Nut, disassembling tool and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, 1F2, west of No. 27, Guangsha Road, ten industrial zone, lower Town, Fuyong Town, Shenzhen, Guangdong, Baoan District Patentee after: Shenzhen deep impression fastening Polytron Technologies Inc Address before: 518000, 1F2, west of No. 27, Guangsha Road, ten industrial zone, lower Town, Fuyong Town, Shenzhen, Guangdong, Baoan District Patentee before: Deep image fastening system (Shenzhen) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20180719 |