CN203394195U - Electronic anti-theft lock - Google Patents
Electronic anti-theft lock Download PDFInfo
- Publication number
- CN203394195U CN203394195U CN201320376910.0U CN201320376910U CN203394195U CN 203394195 U CN203394195 U CN 203394195U CN 201320376910 U CN201320376910 U CN 201320376910U CN 203394195 U CN203394195 U CN 203394195U
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- resistance
- resistor
- electromagnetic switch
- power supply
- lock
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Abstract
The utility model relates to automatic control techniques, in particular to an electronic anti-theft lock. The electronic anti-theft lock comprises an electromagnetic switch, a key hole and a key and is characterized by further comprising a power supply and an unlocking circuit, wherein the unlocking circuit is respectively connected with the power supply and the electromagnetic switch, the electromagnetic switch is connected with the power supply, the unlocking circuit comprises a comparer, a first resistor and a second resistor, the resistance value of the first resistor is equal to that of the second resistor, the first resistor and the second resistor are respectively connected with the two input ends of the comparer, the output end of the comparer is connected with the electromagnetic switch, and the position of the first resistor or the second resistor corresponds to the lock hole and is fixedly arranged at the top of the key. The electronic ant-theft lock disclosed by the utility model has the beneficial effects that the safety of a household lockset can be effectively improved, the structure is simple, the cost is low, and the use is convenient; the electronic anti-theft lock is especially suitable for household anti-theft locks.
Description
Technical field
The utility model relates to automatic control technology, relates to specifically a kind of electronic safety lock.
Background technology
Lock is exactly the anti-theft tool that people rely on since ancient times, and traditional mechanical lock has formed the structure of multiple classics in development, but conventional lockset is substantially all to insert lockhole with key, by mechanical rotation lock core, unblanks.Therefore the mode of unblanking of this machinery, exists and locks the problem that is easy to be opened by other people all the time, particularly, with the dexterousr people of hand, by some small toolss, just can open multiple mechanical lock.Progress along with technology, engendered at present multiple electronic lock, as coded lock, magnetic card lock and Fingerprint Lock etc., these problems that are latched in are that cost is higher, coded lock easily more passes more in the situation that password is revealed, and is therefore unsuitable for family expenses, the trouble that is latched in magnetic card meeting demagnetization that brush magnetic card opens and closes, the situation that Fingerprint Lock also exists power-off to use, these locksets are because a variety of causes can not be popularized family expenses.
Utility model content
Technical problem to be solved in the utility model, is exactly poor for the safety of current domestic appliance lock, and the higher problem of portions of electronics lock cost, proposes electronic safety lock a kind of simple in structure, with low cost.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of electronic safety lock, comprise electromagnetic switch, lockhole and key, it is characterized in that, also comprise power supply and unlock circuit, described unlock circuit is connected with electromagnetic switch with power supply respectively, described electromagnetic switch is connected with power supply, described unlock circuit comprises comparator, the first resistance and the second resistance, the resistance of described the first resistance and the second resistance equates and is connected with two inputs of comparator respectively, the output of described comparator is connected with electromagnetic switch, the position of described the first resistance or the second resistance is corresponding with lockhole and be fixedly installed on the top of key.
Concrete, described electromagnetic switch is relay.
Concrete, the resistance of described the first resistance and the second resistance is 33K Ω.
The beneficial effects of the utility model are, can effectively improve the safety of family expenses lockset, and simple in structure, with low cost, easy to use.
Accompanying drawing explanation
Fig. 1 is the logical circuitry of electronic safety lock of the present utility model;
Fig. 2 is the cross-sectional view of electronic safety lock of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe the technical solution of the utility model in detail:
Comparator is as a kind of conventional electronic device, possess two inputs and an output, its characteristic is, when the signal of the input of two inputs is identical, and output output signal 0, comparator is not worked this moment, output current signal not, when the signal of two inputs inputs is not identical, output output signal 1, comparator normal operation this moment, normal output current signal.The technical solution of the utility model, effectively utilized this characteristic of comparator, in the lockset opening and closing by electromagnetic switch, two identical parallel circuits difference, two inputs of device are as a comparison set, by the signal controlling comparator of control inputs comparator, output to the electric current of electromagnetic switch, thereby realize, control the object that electromagnetic switch opens and closes.
As shown in Figure 1, circuit logic diagram for electronic safety lock of the present utility model, comprise electromagnetic switch, power supply and unlock circuit, described unlock circuit is connected with electromagnetic switch with power supply respectively, described electromagnetic switch is connected with power supply, described unlock circuit comprises comparator, the first resistance and the second resistance, and the resistance of described the first resistance and the second resistance equates and is connected with two inputs of comparator respectively.Here preferred scheme is that electromagnetic switch adopts relay, switching that can control relay by energising power-off, thus realize the switching of controlling lock.
As shown in Figure 2, cross-sectional view for electronic safety lock of the present utility model, comprise lock body 1, lockhole 2, key 3, electromagnetic switch 4, power supply 5 and unlock circuit, unlock circuit is connected with electromagnetic switch 4 with power supply 5 respectively, electromagnetic switch 4 is connected with power supply 5, unlock circuit comprises comparator 6, the first resistance 7 and the second resistance 8, the resistance of described the first resistance 7 and the second resistance 8 equates and is connected with two inputs of comparator 6 respectively, and wherein the position of the first resistance 7 is corresponding with lockhole 2 and be arranged on the top of key 3.
The principle of unblanking is: the first resistance 7 is arranged on the top of key 3, and when key 3 is extracted lockhole 2 out, the first resistance 7 is also extracted out with key 3, and now two of comparator 6 input end signals are not identical, cut-off electronic lock, and electronic lock cannot be opened.When key 3 inserts, the two ends input signal of comparator 6 is identical, and relay is opened electronic lock, and realization is unblanked.
More optimizedly, the first resistance 7 and the second resistance 8 can be by user's self-changeables, because the resistance of resistance is many, stranger is difficult to the resistance of knowing that user adopts, so its safety is very high, and circuit structure is simple, power supply can adopt common batteries as power supply, and service time is very long, not disturbed by extraneous power supply, therefore use of the present utility model is very simple, and safety is higher.
Claims (3)
1. an electronic safety lock, comprise electromagnetic switch, lockhole and key, it is characterized in that, also comprise power supply and unlock circuit, described unlock circuit is connected with electromagnetic switch with power supply respectively, described electromagnetic switch is connected with power supply, described unlock circuit comprises comparator, the first resistance and the second resistance, the resistance of described the first resistance and the second resistance equates and is connected with two inputs of comparator respectively, the output of described comparator is connected with electromagnetic switch, and the position of described the first resistance or the second resistance is corresponding with lockhole and be fixedly installed on the top of key.
2. a kind of electronic safety lock according to claim 1, is characterized in that, described electromagnetic switch is relay.
3. a kind of electronic safety lock according to claim 2, is characterized in that, the resistance of described the first resistance and the second resistance is 33K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376910.0U CN203394195U (en) | 2013-06-28 | 2013-06-28 | Electronic anti-theft lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376910.0U CN203394195U (en) | 2013-06-28 | 2013-06-28 | Electronic anti-theft lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394195U true CN203394195U (en) | 2014-01-15 |
Family
ID=49905734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320376910.0U Expired - Fee Related CN203394195U (en) | 2013-06-28 | 2013-06-28 | Electronic anti-theft lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394195U (en) |
-
2013
- 2013-06-28 CN CN201320376910.0U patent/CN203394195U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140628 |
|
| EXPY | Termination of patent right or utility model |