CN201507534U - Detachable anti-theft fastening assembly - Google Patents
Detachable anti-theft fastening assembly Download PDFInfo
- Publication number
- CN201507534U CN201507534U CN2009201921732U CN200920192173U CN201507534U CN 201507534 U CN201507534 U CN 201507534U CN 2009201921732 U CN2009201921732 U CN 2009201921732U CN 200920192173 U CN200920192173 U CN 200920192173U CN 201507534 U CN201507534 U CN 201507534U
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- nut
- fastening
- guard circle
- screw rod
- screw head
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Abstract
The utility model provides a detachable anti-theft fastening assembly which comprises a bolt, a nut, a nut protecting ring and a screw rod head protecting ring. The nut protecting ring and the screw rod head protecting ring are arranged on a nut working surface or a screw rod head working surface in a covering manner. The bolt is composed of a screw rod and a screw rod head which are integrated. A circle of fastening platform which is axially protruded outwards is arranged at the periphery of a screw hole of the nut working surface and can be embedded into an installation through hole of the nut protecting ring. A circle of fastening plane which is axially protruded outwards is arranged round the base part of the screw rod of the screw rod head working surface and can be embedded into the installation through hole of the screw rod head protecting ring. After the fastening platform and the fastening plane are additionally arranged, the fastening surface of the nut or the screw rod head can be directly born by the fastening platform and the fastening plane. The fastening assembly not only can realize the functions of anti-loosening and anti-theft, but also can lead a conventional tool not to carry out fastening operation; with convenient processing, low requirement for precision and particularly good pre-tightening effect, the detachable anti-theft fastening assembly can be widely used on occasions of a power transmission and transformation device, an expressway guardrail, a railway facility and the like.
Description
[technical field]
The utility model relates to a kind of fastener assembly with anti-loose anti-theft function.
[background technique]
The China Patent No. that I apply for is 032293747 " a kind of fastening piece that has nut ", a kind of fastening piece that comprises the longitudinal section for " T " font bolt is disclosed, bolt divides screw rod and screw head two-part, its main feature is that the screw head and the nut that uses that is complementary with it thereof are five-cornuted, the axial stero shape of nut and screw head is pentagonal pyramid platform shape, and five angles are arc angle, the corresponding degree of tightness face of each arc angle.Thereby solved prior art well and generally adopted six-sided nut and screw head, revolved for example wrench degree of tightness of tool, the drawback of anti-loose anti-theft poor performance by routine easily.But the fastener assembly of this pentagon structure still has further room for improvement on the anti-loose anti-theft performance.For this reason, I have done improvement again to this fastening piece in China Patent No. is 2004201191830 " anti-loose anti-theft fastener assembly ", and improvements are: the guard circle that is nested with two cap-like on the screw rod between screw head and nut dorsad.By guard circle is set, after having overcome nut and screwing, its degree of tightness face is exposed outside, the defective that the danger of therefore illegal degree of tightness still exists.
After the said goods is set up guard circle, though solved the exposed problem of degree of tightness face, improved safety reliability,, expose problems such as difficult processing, required precision height again by practice: 1, guard circle adopts thick shape stamped from sheetstock to be easy to split, the low material that also takes of yield rate; When adopting the thin type sheet material, the surface of contact processing request of screw head and nut and guard circle is improved again greatly,, will seriously jeopardize the Safety performance of fastening piece if the flatness of surface of contact, planeness can not get assurance.When 2, using, usually pad need be set, make piece-holder between two guard circles in the guard circle outside; but this structure one is that inconvenience is installed, particularly when high-lift operation; the just many a troubles of many parts, the 2nd, integrity difference and influence the pretension effect of fastening piece.
[summary of the invention]
The purpose of this utility model provides the novel a kind of detachable antitheft tightening assembly of a kind of structure, it can realize the anti-loose anti-theft function, make conventional instrument can't carry out the degree of tightness operation, and easy to process, required precision is low, have good especially pretension effect, can be widely used in power transmission and transformation device, freeway guardrail and rail facility etc. and locate.
The technological scheme that realizes above-mentioned purpose is as follows, this detachable antitheft tightening assembly, comprise bolt, nut with the use of bolt coupling, and be nested with nut guard circle and screw head guard circle on bolt, nut guard circle and screw head guard circle are respectively and cover shape, lid is put on nut working surface or screw head working surface, bolt is made up of screw rod and screw head two-part of one, it is characterized in that: the tightening platform that has the axial evagination of a circle around the screw of described nut working surface, but in the installation through hole of tightening platform insert nut guard circle, the wall thickness of nut guard circle and the height of tightening platform are complementary; Also be provided with the fastening plane of the axial evagination of a circle on the described screw head working surface around screw base, fastening plane can embed in the installation through hole of screw head guard circle, and the wall thickness of screw head guard circle and the height on fastening plane are complementary.
As to technique scheme further replenish and perfect, the utility model also has following additional technical feature.
The outer contour of described tightening platform is rounded, is complementary with the installation shape of through holes of nut guard circle.
The outer contour of described tightening platform is polygonal, is complementary with the installation shape of through holes of nut guard circle.
Rounded or the polygonal of the outer contour on described fastening plane is complementary with the installation shape of through holes of screw head guard circle.
Be respectively equipped with spillway hole on described screw head guard circle and the nut guard circle, prevent that the fastener assembly of outdoor application from accelerating to damage reduction of service life because of ponding.
Beneficial effect: be on " a kind of detachable antitheft tightening assembly " architecture basics of 2004201191830 in China Patent No.; axially fasten platform by on nut working surface and screw head working surface, setting up; behind the fastening plane; fastening of nut or screw head directly by tightening platform; fastening plane is born; because tightening platform; fastening plane and nut or screw head are single piece; one is not need to rely on pad during use; the 2nd, because the fastening face of corresponding protection circle is positioned at the periphery of nut working surface or screw head working surface; only play auxiliary pretension effect; nut guard circle or screw head guard circle can adopt corresponding thin material to make on the one hand; easy to process; on the other hand; even the working surface edge of nut and screw head etc. is located; precision is not high when making; can not influence the pretension effect yet; greatly reduce requirement on machining accuracy, can be widely used in the power transmission and transformation device; freeway guardrail and rail facility etc. are located.
For sharpening understanding, by embodiment the utility model is further described below in conjunction with accompanying drawing.
[description of drawings]
Fig. 1 is an embodiment's of the utility model a longitudinal plane overall structure schematic representation.
Among the figure: screw rod 1, outside thread 2, degree of tightness face 3,5, fastening 41 of screw head guard circle 4, screw head guard circle, spillway hole 42; arc angle 6, nut guard circle 7, fastening 71 of nut guard circle, spillway hole 72; nut 8, tightening platform 81, screw head 9, fastening plane 91.
[embodiment]
Referring to Fig. 1.The utility model fastener assembly comprises a bolt, nut 3, a nut guard circle 7 and a screw head guard circle 4.Bolt comprises screw rod 1 and screw head 9 two-part of one, and screw head guard circle 4 and nut guard circle 7 are nested with on screw rod 1 successively through through hole is installed respectively, and then, nut 8 revolves through the outside thread on the screw rod 12 to be put on screw rod 1.Because the China Patent No. of the utility model and my application is " anti-loose anti-theft fastener assembly " structure of 2004201191830, and is identical except that this innovation place, therefore, original structure repeated no more.
Below to this innovation part be described in further detail.
Innovative point of the present utility model is: on the working surface of nut 8 and screw head 9; set up a tightening platform 81 and a fastening plane 91 of axially protruding respectively; be complementary therewith; respectively the installation through hole on fastening 41 of fastening 71 of the nut guard circle, screw head guard circle is amplified; during assembling, tightening platform 81 and fastening plane 91 can be distinguished in fastening 41 of fastening 71 of insert nut guard circle, screw head guard circle.Certainly, the outer contour on tightening platform 81 and fastening plane 91 can be circular, can be polygonal also, as long as reach mutual coupling, present embodiment adopts round structure, convenient processing.During use; because tightening platform 81 directly pastes with the fastener both sides respectively mutually with fastening plane 91; and fastening 71 of nut guard circle; fastening 41 of screw head guard circle is positioned at the periphery on tightening platform 81 and fastening plane 91; so (height that can also make tightening platform 81 and fastening plane 91 as required is greater than screw head guard circle 4 only to play auxiliary pretension effect; the thickness of nut guard circle 7; tightening platform 81 and fastening plane 91 are given prominence to fastening 71 of nut guard circle; outside fastening 41 of the screw head guard circle; and rely on tightening platform 81 and fastening plane 91 to reach the pretension purpose fully; certainly; the preceding topic of this design is can not influence guard circle to degree of tightness face 3; 5 protection; that is: give prominence to fastening 71 of nut guard circle on tightening platform 81 and fastening plane 91; too many outside fastening 41 of the screw head guard circle; otherwise will cause degree of tightness face 3; 5 is exposed, and improper degree of tightness hidden danger occurs).Can omit pad when this structure is not only used, and because tightening platform 81, fastening plane 91 and nut 8 and screw head 9 are single piece, the pretension effect is good especially; Moreover screw head guard circle 4 and nut guard circle 7 can also adopt corresponding thin material to make, and nut 8 can reduce greatly with the machining accuracy of bolt, as long as can guarantee the flatness and the planeness on tightening platform 81 and fastening plane 91.
In addition, for the circle internal cause ponding that prevents screw head guard circle 4 and nut guard circle 7 gets rusty, influence quality and working life, compartment is provided with three spillway holes 42,72 in the outer, bottom of screw head guard circle 4 and nut guard circle 7.
Claims (5)
1. detachable antitheft tightening assembly, comprise bolt, nut (8) with the use of bolt coupling, and be nested with nut guard circle (7) and screw head guard circle (4) on bolt, nut guard circle (7) and screw head guard circle (4) are respectively and cover shape, lid is put on nut (8) working surface or screw head (9) working surface, bolt is made up of screw rod (1) and screw head (9) two-part of one, it is characterized in that: the tightening platform (81) that has the axial evagination of a circle around the screw of described nut (8) working surface, tightening platform (81) but in the installation through hole of insert nut guard circle (7), the height of the wall thickness of nut guard circle (7) and tightening platform (81) is complementary; Also be provided with the fastening plane (91) of the axial evagination of a circle on described screw head (9) working surface around screw rod (1) base portion; fastening plane (91) can embed in the installation through hole of screw head guard circle (4), and the height of the wall thickness of screw head guard circle (4) and fastening plane (91) is complementary.
2. a kind of detachable antitheft tightening assembly as claimed in claim 1 is characterized in that: the outer contour of described tightening platform (81) is rounded, is complementary with the installation shape of through holes of nut guard circle (7).
3. a kind of detachable antitheft tightening assembly as claimed in claim 1 is characterized in that: the outer contour of described tightening platform (81) is polygonal, is complementary with the installation shape of through holes of nut guard circle.
4. a kind of detachable antitheft tightening assembly as claimed in claim 1 is characterized in that: the rounded or polygonal of outer contour on described fastening plane (91) is complementary with the installation shape of through holes of screw head guard circle (4).
5. a kind of detachable antitheft tightening assembly as claimed in claim 1 is characterized in that: be respectively equipped with spillway hole (42,72) on described screw head guard circle (4) and the nut guard circle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201921732U CN201507534U (en) | 2009-08-31 | 2009-08-31 | Detachable anti-theft fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201921732U CN201507534U (en) | 2009-08-31 | 2009-08-31 | Detachable anti-theft fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507534U true CN201507534U (en) | 2010-06-16 |
Family
ID=42468660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201921732U Expired - Fee Related CN201507534U (en) | 2009-08-31 | 2009-08-31 | Detachable anti-theft fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481643A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团贵州有限公司 | A kind of communication pipe tamper-proof blocking device and its installation tool |
-
2009
- 2009-08-31 CN CN2009201921732U patent/CN201507534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481643A (en) * | 2015-08-25 | 2017-03-08 | 中国移动通信集团贵州有限公司 | A kind of communication pipe tamper-proof blocking device and its installation tool |
| CN106481643B (en) * | 2015-08-25 | 2018-12-07 | 中国移动通信集团贵州有限公司 | A kind of communication pipe anti-theft blocking device and its installation tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20110831 |