CN101319691A - Electronic anti-theft nut - Google Patents
Electronic anti-theft nut Download PDFInfo
- Publication number
- CN101319691A CN101319691A CNA2008100622447A CN200810062244A CN101319691A CN 101319691 A CN101319691 A CN 101319691A CN A2008100622447 A CNA2008100622447 A CN A2008100622447A CN 200810062244 A CN200810062244 A CN 200810062244A CN 101319691 A CN101319691 A CN 101319691A
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- cup
- via hole
- nut body
- wiring board
- double
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- Burglar Alarm Systems (AREA)
Abstract
The invention discloses an electric theft-protection nut used as an alarming host-computer of a sensor and a tail resistance with a wire, and the utility model is matched with a bolt to protect relevant equipment from being stolen. The nut body (1) is in a cup shape, a threaded orifice (1a) is arranged on the inner wall of the cup mouth, and a central through hole (1b) is arranged on the bottom of the cup. A two-sided circuit board (2) is arrange at the bottom of the cup; an insulation washer (7) is arranged between the two-sided circuit board (2) and the cup bottom; four sector conductive contact pieces 10A1, 10A2, 10A3 and 10A4 insulated by a crisscross insulation layer (9) are arranged on the side of the two-sided circuit board (2) facing to the cup mouth; a printed circuit including a resistor (6) is arranged on the side facing the cup bottom; four holes 10a, 10b, 10c and 10d are arranged between the two sides to make the two sides communicated with each other; one end of a wire (4) lead out from the grounding terminal and a wire (5) lead out from the output end is connected with the printed circuit, and the other end is connected with the alarming host-machine after being put through the insulation washer (7) and the central through hole of the nut body (1); the wire outlet of the nut body (1) is sealed by a resin layer; and the nut body (1) is spliced with the two wires lead out, the insulation washer (7) and the two-sided circuit board (2) into one integrated body.
Description
Technical field
The present invention relates to the nut in a kind of fastening piece, i.e. the electronic anti-theft nut of the alarm sensor use of the direct current wired alarming main frame of conduct band line tail resistance.
Technical background machinery, electric power or the like equipment is generally all used hexagon head bolt, nut to cooperate and is fixed on ground, or is fixed on the frame.For antitheft, have and break thread, there is clear-cut weldering dead, but become non-dismountable.Also the someone uses the nut of complexity, abnormity, as tooth nut, needs to use the special tool dismounting.If but this fastening piece is used widely, that this special tool has just become general utility tool, has also just lost antitheft effect thereupon.
Summary of the invention
The purpose of this invention is to provide a kind of can be with the electronic anti-theft nut of traditional general utility tool dismounting such as spanner; fitted bolt; sensor as the direct current wired alarming main frame of being with line tail resistance; when unscrewing, pull down anti-theft nut; or being connected the lead short circuit, opening circuit with electronic anti-theft nut and alarm host machine; all can trigger alarm host machine and report to the police, thereby the protection relevant device is stolen.
In order to achieve the above object, the technical solution that the present invention proposes is, a kind of electronic anti-theft nut, hexagon nut body steel is cup-shaped, the rim of a cup inwall has screw thread,, there is central through bore at the cup end, a double-sided wiring board is put at the cup end, double-sided wiring board and cup have an insulating washer that central through bore is arranged again with double-sided wiring board and nut body insulation at the end, double-sided wiring board simultaneously is the fan-shaped conductive contact blade that four diameters are slightly less than the double-sided wiring board diameter towards rim of a cup, isolate by the insulation of cross isolation layer each other, at the bottom of cup simultaneously is the printed circuit that comprises resistor, four via hole break-through are arranged between the two sides, a via hole is arranged on each conductive contact blade, conductor is arranged in each via hole the two sides conducting.Drawing lead one end for two is connected with printed circuit, the other end passes the nut body central through bore and is connected with supporting alarm host machine, draw lead and seal by resin layer, and nut body, two are drawn lead and be integral together with double-sided wiring board is bonding in nut body central through bore outlet.Working circuit is, links to each other with a via hole behind resistor of grounding end polyphone in the printed circuit, and via hole of this via hole and diagonal angle links to each other, and output terminal links to each other with another via hole, and this via hole also links to each other with the diagonal angle via hole.Grounding end is drawn lead and is linked to each other with grounding end, and output terminal is drawn lead and linked to each other with output terminal.The resistance of described resistor is consistent with the desired line tail of alarm host machine resistance.
Nut body for insulating material is made can omit insulating washer.
The present invention is further illustrated below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the embodiment of the invention 1 a tight condition structure cross-sectional schematic;
Fig. 2 is the worm's eye view (towards the rim of a cup one side) of double-sided wiring board among Fig. 1;
Fig. 3 is the plan view (one side at the bottom of the cup) of double-sided wiring board among Fig. 1;
Fig. 4 is the equivalent circuit diagram of working circuit of the present invention;
Fig. 5 is the embodiment of the invention 2 tight condition structure cross-sectional schematic.
Embodiment
Embodiment 1 is as shown in Figure 1: six-sided nut body 1 is a steel part, and hollow is cup-shaped, and the rim of a cup inwall has one section screw mouth 1a to screw with the bolt 8 that is used, and there is central through bore 1b at a cup end.A commercially available circular double-sided wiring board 2 is put at the cup end, double-sided wiring board 2 and cup have a round rubber insulating washer 7 that central through bore is arranged again with nut body 1 and double-sided wiring board 2 isolated insulations at the end, and there is the interior location of central through bore 1b of the protruding circle of circle 7a insert nut body 1 at insulating washer 7 central through bore edges.Double-sided wiring board 2 is fan-shaped copper conductive contact blade 10A1,10A2,10A3, the 10A4 that four diameters are slightly less than double-sided wiring board 2 diameters towards the rim of a cup one side as shown in Figure 2, is isolated by 9 insulation of criss-cross double-sided wiring board 2 substrate insulating layers each other.Double-sided wiring board 2 at the bottom of the cup one look like Fig. 1, shown in Figure 3 be the printed circuit that comprises resistor 6, resistor 6 is a slice Chip-Rs as thin as a wafer.Four via hole 10a are arranged between double-sided wiring board 2 two sides, 10b, 10c, the 10d break-through has a via hole on the every conductive contact blade, conductor is arranged with the two sides conducting in each via hole.Two are drawn lead is that grounding end is drawn lead 4 and drawn lead 5 one ends with output terminal and be connected with printed circuit, and the other end passes respectively with the grounding end of supporting alarm host machine from nut body 1 central through bore 1b and is connected with signal input part.By resin layer 3 water-tights, and nut body 1 and two are drawn lead together with double-sided wiring board 2, insulating washer 7 bonding being integral in nut body 1 end face outlet.
Working circuit of the present invention also is that the sensor circuit of alarm host machine is two and draws being connected of lead and printed circuit, printed circuit as shown in Figure 3, grounding end GND serial resistance device 6 backs link to each other with via hole 10a, via hole 10a links to each other with diagonal angle via hole 10c, output terminal SIN links to each other with via hole 10b, and via hole 10b links to each other with diagonal angle via hole 10d.Grounding end is drawn lead 4 and is linked to each other with grounding end GND, and output terminal is drawn lead 5 and linked to each other with output terminal SIN.The resistance of patch resistor 6 is consistent with the resistance of the desired line tail of supporting alarm host machine resistance, and in fact, resistor 6 is exactly the line tail resistance of alarm host machine.In general, grounding end GND and output terminal SIN are positioned at the center region of double-sided wiring board 2, promptly with nut body 1 and the corresponding zone of insulating washer 7 central through bores, not so, draw wire termination for two and will be clipped between double-sided wiring board 2 and the insulating washer 7.
The present invention is work like this: Fig. 4 is the equivalent circuit of working circuit of the present invention, double-sided wiring board 2 has constituted the switch S 1 among Fig. 4 towards rim of a cup one side and steel bolt 8 among Fig. 1, on original tightening nut, when being tightened in nut body 1 on the bolt 8 again, four conductive contact blade 10A1 of double-sided wiring board 2,10A2,10A3,10A4 contacts with bolt 8 end faces, be equivalent to switch S 1 closure, the conducting of alarm host machine sensor circuit, there is a voltage drop at resistor 6 two ends, make the alarm host machine signal input part obtain a fixing reference potential, alarm host machine is in the standby stand-by state.When nut body 1 was unscrewed or unloaded, bolt 8 end faces separated with conductive contact blade 10A1,10A2,10A3,10A4, were equivalent to switch S 1 disconnection among Fig. 4, and sensor circuit opens circuit, and alarm host machine signal input part voltage changes, and triggers alarm host machine and reports to the police.Therefore bolt 8 end faces that the present invention's requirement is used are smooth smooth, make it to contact well with conductive contact blade 10A1,10A2,10A3,10A4.Simultaneously, as shown in Figure 3, via hole 10a links to each other with via hole 10c, via hole 10b links to each other with via hole 10d, make four fan-shaped conductive contact blade 10A1 and 10A3,10A2 and 10A4 diagonal angle conducting in twos, so, just can guarantee the sensor circuit conducting as long as bolt 8 end faces contact with any adjacent two conductive contact blades.
Cut off if draw lead to two, sensor circuit opens circuit, and alarm host machine is reported to the police.If draw the lead short circuit with two, be equivalent to resistor among Fig. 46 and switch S 1 bypass alarm host machine signal input part voltage change, alarm host machine warning.
Resistor 6 can be several resistors polyphone or and connect and form, but total resistance must be consistent with the desired line tail of supporting alarm host machine resistance.
The present invention also is applicable to tetragonal square nut.
In sum; the present invention is as the sensor of the direct current wired alarming main frame of band line tail resistance; supporting with alarm host machine, fitted bolt is screwed on the equipment that needs protection, because the profile of nut body is a hexagon; thereby can be with traditional general utility tool dismounting such as spanners; simultaneously, when unscrewing or pull down nut body, or cut off, short circuit draws lead; all can send electrical signal and trigger the alarm host machine warning, thereby the protection relevant device is stolen.The present invention especially is fit to cooperate with stone bolt, and protection is fixed on the equipment on ground.
Claims (2)
1, a kind of electronic anti-theft nut that uses as the direct current wired alarming host sensor of band line tail resistance, this nut body (1) is that hexagonal is cup-shaped, make by metallic material, its rim of a cup inwall has one section screw mouth (1a) that is complementary with the hexagon head bolt that cooperates (8),, there is central through bore (1b) at the cup end, it is characterized in that: a double-sided wiring board (2) is put at nut body (1) the cup end, and double-sided wiring board (2) and cup have an insulating washer (7) that central through bore is arranged again with double-sided wiring board (2) and nut body (1) insulation at the end; Double-sided wiring board (2) simultaneously is the fan-shaped conductive contact blade (10A1,10A2,10A3,10A4) that is slightly less than double-sided wiring board (2) diameter by four diameters of criss-cross double-sided wiring board (2) substrate insulating layer (9) isolated insulation towards rim of a cup, at the bottom of cup simultaneously is the printed circuit that comprises resistor (6), four via holes (10a, 10b, 10c, 10d) break-through is arranged between the two sides, a via hole is arranged on the every conductive contact blade, conductor is arranged in each via hole the two sides conducting; Draw lead for two, promptly grounding end is drawn lead (4) and is drawn lead (5) one ends with output terminal and be connected with printed circuit, and the other end passes the central through bore of insulating washer (7) and the central through bore (1b) of nut body (1) joins with supporting alarm host machine; Draw lead for two and seal by resin layer (3), and nut body (1) is drawn lead together with insulating washer (7), bonding being integral of double-sided wiring board (2) with two in nut body (1) central through bore (1b) outlet;
Working circuit is: in printed circuit, grounding end GND serial resistance device (6) back links to each other with via hole (10a), and via hole (10a) links to each other with diagonal angle via hole (10c), and output terminal SIN links to each other with via hole (10b), and via hole (10b) links to each other with diagonal angle via hole (10d) again; Grounding end is drawn lead 4 and is linked to each other with grounding end GND, and output terminal is drawn lead (5) and linked to each other with output terminal SIN; The resistance of described resistor (6) is consistent with the resistance of the desired line tail of supporting alarm host machine resistance.
2, a kind of electronic anti-theft nut that uses as the direct current wired alarming host sensor of band line tail resistance, this nut body (1) is that hexagonal is cup-shaped, make by insulating material, its rim of a cup inwall has one section screw mouth (1a) that mates with the hexagon head bolt that cooperates (8),, there is central through bore (1b) at the cup end, it is characterized in that: a double-sided wiring board (2) is put at nut body (1) the cup end, double-sided wiring board (2) simultaneously is the fan-shaped conductive contact blade (10A1 that is slightly less than double-sided wiring board (2) diameter by four diameters of criss-cross double-sided wiring board (2) substrate insulating layer (9) isolated insulation towards rim of a cup, 10A2,10A3,10A4), at the bottom of cup simultaneously is the printed circuit that comprises resistor (6), four via hole (10a are arranged between the two sides, 10b, 10c, 10d) break-through, a via hole is arranged on the every conductive contact blade, conductor is arranged in each via hole the two sides conducting; Draw lead for two, promptly grounding end is drawn lead (4) and is drawn lead (5) one ends with output terminal and be connected with printed circuit, and the central through bore (1b) that the other end passes nut body (1) links to each other with supporting alarm host machine; Draw lead for two and seal by resin layer (3), and nut body (1) is drawn lead together with bonding being integral of double-sided wiring board (2) with two in the outlet of nut body (1) central through bore (1b);
Working circuit is: in printed circuit, grounding end GND serial resistance device (6) back links to each other with via hole (10a), and via hole (10a) links to each other with diagonal angle via hole (10c), and output terminal SIN links to each other with via hole (10b), and via hole (10b) links to each other with diagonal angle via hole (10d) again; Grounding end is drawn lead 4 and is linked to each other with grounding end GND, and output terminal is drawn lead (5) and linked to each other with output terminal SIN, and the resistance of described resistor (6) is consistent with the resistance of the desired line tail of supporting alarm host machine resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100622447A CN101319691B (en) | 2008-06-10 | 2008-06-10 | Electronic anti-theft nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100622447A CN101319691B (en) | 2008-06-10 | 2008-06-10 | Electronic anti-theft nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319691A true CN101319691A (en) | 2008-12-10 |
| CN101319691B CN101319691B (en) | 2010-04-14 |
Family
ID=40179910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100622447A Expired - Fee Related CN101319691B (en) | 2008-06-10 | 2008-06-10 | Electronic anti-theft nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101319691B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163992A (en) * | 2011-12-17 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Locking device |
| CN103366924A (en) * | 2012-03-30 | 2013-10-23 | 郑州金源特变电气有限公司 | Anti-dismantling intelligent bolt assembly for transformer |
| US9646472B2 (en) | 2012-08-15 | 2017-05-09 | Payment Express Limited | Tamper evident systems |
| CN109147551A (en) * | 2018-06-20 | 2019-01-04 | 郴州多特科技发展有限公司 | E-seals |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5282709A (en) * | 1993-05-04 | 1994-02-01 | G & H Technology, Inc. | Separation nut with a restraining wire |
| CN2265916Y (en) * | 1996-09-26 | 1997-10-29 | 李有光 | Theft bolt and nut for automotive tyre |
| CN201228711Y (en) * | 2008-06-10 | 2009-04-29 | 桐乡市三鼎安防器材有限公司 | Electronic anti-theft nut |
-
2008
- 2008-06-10 CN CN2008100622447A patent/CN101319691B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163992A (en) * | 2011-12-17 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Locking device |
| CN103366924A (en) * | 2012-03-30 | 2013-10-23 | 郑州金源特变电气有限公司 | Anti-dismantling intelligent bolt assembly for transformer |
| CN103366924B (en) * | 2012-03-30 | 2016-03-16 | 郑州金源特变电气有限公司 | Transformer Anti-dismantling intelligent bolt assembly |
| US9646472B2 (en) | 2012-08-15 | 2017-05-09 | Payment Express Limited | Tamper evident systems |
| CN109147551A (en) * | 2018-06-20 | 2019-01-04 | 郴州多特科技发展有限公司 | E-seals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101319691B (en) | 2010-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100414 Termination date: 20100610 |