CN101514600B - Anti-theft device - Google Patents
Anti-theft device Download PDFInfo
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- CN101514600B CN101514600B CN2008100810573A CN200810081057A CN101514600B CN 101514600 B CN101514600 B CN 101514600B CN 2008100810573 A CN2008100810573 A CN 2008100810573A CN 200810081057 A CN200810081057 A CN 200810081057A CN 101514600 B CN101514600 B CN 101514600B
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- theft device
- tooth portion
- current
- coil
- unblanking
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Abstract
The invention relates to an anti-theft device, which comprises a locking piece and an unlocking piece, wherein the locking piece comprises a lock hole, a teeth groove, a coil, a current detector and a microprocessor; the teeth groove and the coil are arranged in the lock hole; the current detector is electrically connected with the coil and the microprocessor respectively; the unlocking piece comprises a teeth part; the teeth part corresponds to the teeth groove of the locking piece; and the teeth part comprises magnetic substances.
Description
Technical field
The relevant a kind of anti-theft device of the present invention is meant the device of reaching anti-theft effect by the latch fitting and the part of unblanking especially.
Background technology
Be the protection security of the lives and property; anti-theft device is common in the daily life; see also Fig. 1; Fig. 1 is known anti-theft device schematic diagram, and known anti-theft device 10 comprises latch fitting 11 and key 12, and latch fitting 11 comprises lockhole 111 and teeth groove 112; and key 12 comprises tooth portion 121; when key 12 inserted in the latch fitting 11, tooth portion 121 needed fully corresponding with teeth groove 112, and key 12 can rotate in lockhole 111 to open anti-theft device 10.
Though the structure of tooth portion 121 and complexity can improve the degree of difficulty of opening anti-theft device 10, progressing greatly of key reproduction technology makes deathwatch's news still occur in frequently around our life.
Summary of the invention
The invention provides a kind of anti-theft device, comprise latch fitting and the part of unblanking, latch fitting comprises lockhole, teeth groove, coil, current detecting meter and microprocessor, teeth groove and coil are located in the lockhole, current detecting score other and coil and microprocessor electric connection, the part of unblanking comprises tooth portion, and tooth portion is corresponding with the teeth groove of latch fitting, and tooth portion comprises magnetisable material.Wherein, insert when rotating in the described lockhole, produce induced-current, when described induced-current is in a preset range, open described latch fitting when the described part of unblanking.
The present invention's part of unblanking also comprises handle portion and extension, and handle portion is connected with extension, and tooth portion is located on the extension.
The quantity of the tooth portion of the present invention's one preferable routine anti-theft device is a plurality of, and the quantity of coil is corresponding with the quantity of tooth portion.
The tooth portion of the present invention's one preferable routine anti-theft device comprises multiple magnetisable material.
Preset standard electric current in the microprocessor of the present invention's one preferable routine anti-theft device, when the part of unblanking is inserted in the lockhole, the corresponding teeth groove of tooth portion, and rotate the part generation induced-current of unblanking, when induced-current equaled normalized current, latch fitting was unlocked.
As can be known above-mentioned, anti-theft device of the present invention is except utilizing conventional teeth and teeth groove must correspondingly fully just can be unblanked, also utilize the coil in the magnetisable material cooperation lockhole in the tooth portion, use Lenz's law and produce induced-current, pass through again microprocessor relatively after, begin to such an extent that finish unlocking action, not only improve the complexity of anti-theft device when unblanking, also improved safety in utilization simultaneously.
Description of drawings
For above and other objects of the present invention, feature and advantage can be become apparent, below conjunction with figs. is elaborated to preferred embodiment of the present invention, wherein:
Fig. 1 is known anti-theft device schematic diagram.
Fig. 2 is the schematic diagram of anti-theft device of the present invention.
Fig. 3 anti-theft device of the present invention flow chart of unblanking.
The specific embodiment
See also Fig. 2, Fig. 2 is the schematic diagram of anti-theft device of the present invention.Anti-theft device 20 comprises latch fitting 21 and the part 22 of unblanking, in present embodiment, latch fitting 21 is installed on the door 30, latch fitting 21 comprises lockhole 211, teeth groove 212, coil 213, current detecting meter 214 and microprocessor 215, teeth groove 212 is located in the lockhole 211 with coil 213, and current detecting meter 214 electrically connects with coil 213, and microprocessor 215 electrically connects with current detecting meter 214, wherein, preset standard electric current in the microprocessor 215.
In addition, the part 22 of unblanking comprises the 221a of tooth portion, 221b, 221c, handle portion 222 and extension 223, the shape of the 221a of tooth portion, 221b, 221c and configuration mode are corresponding with the teeth groove 212 of latch fitting 21, and the 221b of tooth portion is a magnetisable material, and handle portion 222 is connected with extension 223, and the 221a of tooth portion, 221b, 221c then are located on the extension 223.When the part 22 of unblanking is inserted when rotating in the lockhole 211, induced-current produces, and utilize Lenz's law, coil 213 density in the magnetic intensity of the magnetisable material on the 221b of tooth portion and the lockhole 211, the size that concerns induced-current intensity on the coil 213, therefore, the induced electricity flow valuve must just allow to do the action of unblanking when default scope.In addition, in design, can utilize parameters such as tooth portion position, tooth portion magnetic intensity, loop density and the number of turns, as setting faradic scope.
In addition, in present embodiment, the quantity of tooth portion is a plurality of, and the tooth portion with magnetisable material only has one, and the tooth portion that coil quantity correspondence has a magnetisable material only is provided with one.And in other embodiment, the tooth portion with magnetisable material is not limited to one, can use a plurality of tooth portions with magnetisable material, and similarly, the tooth portion that coil quantity correspondence has magnetisable material can be a plurality of.In addition, in present embodiment, the quantity of current detecting meter is one, and in other embodiment, it is a plurality of that the quantity of current detecting meter also can be, to electrically connect with a plurality of coils.
Please arrange in pairs or groups again and consult Fig. 3, Fig. 3 anti-theft device of the present invention flow chart of unblanking.A. the part 22 of will unblanking is inserted in the lockhole 211 of latch fitting 21, and make the 221a of tooth portion on the part 22 of unblanking, 221b, 221c is corresponding with teeth groove 212 in the lockhole 211, b. rotate the part 22 of unblanking, the coil 213 of the 221b of tooth portion in lockhole 211 with magnetisable material rotated, on coil 213, produce induced-current, c. induced-current is sent to current detecting meter 214 and microprocessor 215, at last, d. microprocessor 215 with normalized current default in induced-current and the microprocessor 215 relatively, e1. if relatively more correct, microprocessor 215 indications are unblanked, and e2. is if more incorrect, and microprocessor 215 indications are not unblanked.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can making all changes that is equal to or replacement, so protection scope of the present invention is when looking being as the criterion that claims define.
Claims (6)
1. an anti-theft device is characterized in that, comprising:
Latch fitting comprises lockhole, teeth groove, coil, current detecting meter and microprocessor, and described teeth groove and described coil are located in the described lockhole, and described current detecting meter and described coil electrically connect, and described microprocessor and described current detecting meter electrically connect; And
The part of unblanking comprises tooth portion, and described tooth portion is corresponding with the described teeth groove of described latch fitting, and described tooth portion comprises magnetisable material;
Wherein, insert when rotating in the described lockhole, produce induced-current, when described induced-current is in a preset range, open described latch fitting when the described part of unblanking.
2. anti-theft device according to claim 1 is characterized in that, the described part of unblanking also comprises handle portion and extension, and described handle portion is connected with described extension, and described tooth portion is located on the described extension.
3. anti-theft device according to claim 1 is characterized in that, the quantity of described tooth portion is a plurality of, and the quantity of described coil is corresponding with the quantity of described tooth portion.
4. anti-theft device according to claim 3 is characterized in that, described these tooth portions comprise multiple magnetisable material.
5. anti-theft device according to claim 1 is characterized in that, preset standard electric current in the described microprocessor.
6. anti-theft device according to claim 5 is characterized in that, when described induced-current equaled described normalized current, described latch fitting was unlocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100810573A CN101514600B (en) | 2008-02-20 | 2008-02-20 | Anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100810573A CN101514600B (en) | 2008-02-20 | 2008-02-20 | Anti-theft device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514600A CN101514600A (en) | 2009-08-26 |
| CN101514600B true CN101514600B (en) | 2011-11-02 |
Family
ID=41039207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100810573A Active CN101514600B (en) | 2008-02-20 | 2008-02-20 | Anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101514600B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867043B (en) * | 2014-03-24 | 2016-05-04 | 佛山市川东磁电股份有限公司 | A kind of safe antitheft magnetic padlock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281928A (en) * | 1999-07-21 | 2001-01-31 | 莫图拉保险锁股份公司 | Cylindrical lock with offset device operated by magnetic force |
| CN1456776A (en) * | 2003-03-30 | 2003-11-19 | 王珺华 | Contact electronic locks |
| DE10353988A1 (en) * | 2003-11-19 | 2005-06-23 | Karl-Heinz Friedrich | Cylinder-type security lock for use in building has pins of unequal length in housing and cylinder and has springs with hydraulic or eddy current damping in housing |
-
2008
- 2008-02-20 CN CN2008100810573A patent/CN101514600B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281928A (en) * | 1999-07-21 | 2001-01-31 | 莫图拉保险锁股份公司 | Cylindrical lock with offset device operated by magnetic force |
| CN1456776A (en) * | 2003-03-30 | 2003-11-19 | 王珺华 | Contact electronic locks |
| DE10353988A1 (en) * | 2003-11-19 | 2005-06-23 | Karl-Heinz Friedrich | Cylinder-type security lock for use in building has pins of unequal length in housing and cylinder and has springs with hydraulic or eddy current damping in housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101514600A (en) | 2009-08-26 |
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| C14 | Grant of patent or utility model | ||
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