CN2721811Y - Remote controlled electronic coding mechanical lock - Google Patents
Remote controlled electronic coding mechanical lock Download PDFInfo
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- CN2721811Y CN2721811Y CN 200420060506 CN200420060506U CN2721811Y CN 2721811 Y CN2721811 Y CN 2721811Y CN 200420060506 CN200420060506 CN 200420060506 CN 200420060506 U CN200420060506 U CN 200420060506U CN 2721811 Y CN2721811 Y CN 2721811Y
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Abstract
The utility model provides a remote controlled electronic code mechanical lock, comprising a locking mechanism and a lock head which are arranged on a lock body, a remote control transmission circuit and a receiving control circuit. The remote controlled electronic code mechanical lock is characterized in that the receiving control circuit comprises a power supply circuit, a receiving circuit where an input is connected with an output in sequence, a center process circuit, a drive circuit and an executive circuit. Wherein, the executive circuit is connected with the locking mechanism. The utility model has the advantages of simple structure, safety and reliability, convenient use, low cost, etc. whether or not users are at home, the lock is capable of being locked from interior with a remote controller, the utility model prevents thieves from unlocking the lock with a key in the way of illegal steal technique, so the theft-proof performance is enhanced.
Description
(1), affiliated technical field
The utility model relates to a kind of mechanical lock, particularly a kind of remote control electric cipher code mechanical theftproof lock.
(2), technical background
Lock gall and lock core that the existing mechanical lock generally comprises on lock body, the tapered end constitute, lock body is provided with the anti-opening apparatus of key, the user is in the process of using this lock, the people can prevent that outdoor human key from opening lock with the anti-opening apparatus of this key indoor, after in case the people withdraws from a room, just can't use key to prevent opening apparatus, cause illegal person just can lock be opened, thereby reduced theftproof performance from the outdoor use stealing skill.Have again, present remote control electric puzzle theft-proof lock generally is to be made of lock body, reception control circuit and remote controlled transmitting circuit, it can only be unblanked by password with remote controller, and need not use key, function is comparatively single, an also anxious not exhibition in face of the code breaking personnel of specialty, theftproof performance is also lower.
(2), summary of the invention
The purpose of this utility model just provides a kind of remote control electric cipher code mechanical lock simple in structure, safe and reliable, easy to use, no matter whether the people is in, can will lock internal lock by code signal, prevents that illegal person from opening lock by keyhole.
The purpose of this utility model is to realize by such technical scheme, it includes locking mechanism and tapered end, remote controlled transmitting circuit and reception control circuit on the lock body, it is characterized in that: reception control circuit includes receiving circuit, central processing circuit, drive circuit and the executive circuit that power supply circuits and input, output are connected successively, and executive circuit is connected with locking mechanism.
Operating principle of the present utility model is such: when needs shut, earlier close mechanical lock with key, send the cipher instruction signal with remote controlled transmitting circuit to reception control circuit then, receiving circuit is compared the cipher instruction signal that receives with the password that self is provided with, when two passwords are consistent, send control signal, after central processing circuit was handled, the output control signal made locking mechanism locking lock through drive circuit, executive circuit.When needs are unblanked, earlier send the cipher instruction signal to reception control circuit by remote controlled transmitting circuit, after receiving circuit compares the cipher instruction signal that receives and the password that self is provided with, when two passwords are consistent, after central processing circuit was handled, the output control signal made locking mechanism open lock through drive circuit, executive circuit.So, no matter whether the people in the house, can prevent that illegal person from opening lock by keyhole with lock locking internally.
Owing to adopted technique scheme, the utlity model has advantages such as simple in structure, safe and reliable, easy to use and with low cost, no matter whether the people is in, can will lock locking internally with remote controller, prevent that illegal person from opening lock by keyhole with stealing skill, strengthened theftproof performance.
(4), description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is the circuit block diagram of reception control circuit of the present utility model;
Fig. 2 is the circuit diagram of first kind of embodiment of reception control circuit of the present utility model;
Fig. 3 is the structural representation of first kind of embodiment of locking mechanism;
Fig. 4 is the structural representation of second kind of embodiment of locking mechanism;
Fig. 5 is the structural representation of first kind of embodiment of actuating mechanism;
Fig. 6 is the structural representation of second kind of embodiment of actuating mechanism;
Fig. 7 is the circuit diagram of second kind of embodiment of reception control circuit of the present utility model.
Among the figure: 1. power supply circuits; 2. receiving circuit; 3. central processing circuit; 4. drive circuit; 5. executive circuit; 6. lock gall; 7. through hole; 8. lock core; 9. hole; 10. spacer pin; 11. blind hole; 12. through hole; 13. motor; 14. gear; 15. vertical tooth; 16. electromagnet; 17. sleeve; 18. back-moving spring.
(5), the specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, 2, the utility model includes locking mechanism and tapered end, remote controlled transmitting circuit and the reception control circuit on the lock body, it is characterized in that: reception control circuit includes power supply circuits 1 and receiving circuit 2, central processing circuit 3, drive circuit 4 and the executive circuit 5 imported, output is connected successively, and executive circuit 5 is connected with locking mechanism.
Operating principle of the present utility model is such: when needs shut, earlier close mechanical lock with key, send the cipher instruction signal with remote controlled transmitting circuit to reception control circuit then, receiving circuit 2 is compared the cipher instruction signal that receives with the password that self is provided with, when two passwords are consistent, send control signal, after central processing circuit 3 was handled, the output control signal made locking mechanism locking lock through drive circuit 4, executive circuit 5.When needs are unblanked, earlier send the cipher instruction signal to reception control circuit by remote controlled transmitting circuit, after receiving circuit 2 compares the cipher instruction signal that receives and the password that self is provided with, when two passwords are consistent, after central processing circuit 3 was handled, the output control signal made locking mechanism open lock through drive circuit 4, executive circuit 5.So, no matter whether the people in the house, can prevent that illegal person from opening lock by keyhole with lock locking internally.
As shown in Figure 2, central processing circuit 3 includes microprocessor IC1, drive circuit 4 includes the 5th optocoupler IC5 and the 6th optocoupler IC6, executive circuit includes first, two relay J 1, J2, two outputs of receiving circuit respectively with the 19th of microprocessor IC1,20 pin connect, the 5th pin ground connection of microprocessor IC1, the 9th pin of microprocessor IC1 is connected with the input of the 5th optocoupler IC5 of drive circuit by the 4th resistance R 4, the 10th pin of microprocessor IC1 is connected with the input of the 6th optocoupler IC6 of drive circuit by the 5th resistance R 5, the output of the 5th optocoupler IC5 is connected with the 12V output of power supply circuits by the coil of second relay J 2, the output of the 6th optocoupler IC6 is connected with the 12V output of power supply circuits by the coil of first relay J 1, the common port of second relay J 2 and first relay J 1 is connected with locking mechanism respectively, terminals of second relay J 2 and first relay J 1 are connected with ground, and their another terminals are connected with the 12V output of power supply circuits.
In the foregoing circuit, receiving circuit 2, power supply circuits 1 all are existing mature technology, therefore, its structure are not described in detail, and the model of microprocessor IC1 can adopt P87LPC762, belongs to existing commercially available prod, also can adopt other model.The operating principle of this reception control circuit is such: after receiving circuit 1 receives the cipher instruction signal that remote controlled transmitting circuit sends, the password that self is provided with by comparison, when if two passwords are consistent, by output to the 19th of microprocessor IC1,20 pin are carried and are judged signal, after microprocessor IC1 handles, by the 9th of microprocessor IC1,10 pin output control signal, again through the 5th, six optocoupler IC5, IC6 carries out isolation drive, make locking mechanism work, as the motor forward or reverse, electromagnet energising etc., thus the function of lock is locked or is opened in realization locking internally.
As shown in Figure 2, central processing circuit 3 also includes restriction uncaging time circuit, restriction uncaging time circuit can be by first resistance R 1, the 22 capacitor C 22 and the first press button FW1 constitute, the first press button FW1 be arranged at lock body on the corresponding position of interlinked mechanism, the two ends of first resistance R 1 are attempted by between the 5V output of the 4th pin of microprocessor IC1 and power supply circuits, the two ends of the 22 capacitor C 22 and the first press button FW1 all are attempted by between the 4th pin and ground of microprocessor IC1, perhaps, restriction uncaging time circuit can also be to be made of the second press button FW2, the second press button FW2 be arranged at lock body on the corresponding position of interlinked mechanism, the second press button FW2 is serially connected on total road of 5V output of power supply circuits.
As shown in Figure 2, central processing circuit 3 also includes restriction uncaging time regulating circuit, restriction uncaging time regulating circuit is to be made of the 6th resistance R 6, the 7th resistance R 7, adjustable resistance RW and the 6th capacitor C 6, the two ends of adjustable resistance RW also connect between the 5V output and ground of power supply circuits, its adjustable end is connected with the 17th pin of microprocessor IC1 by the 7th resistance R 7, the 6th resistance R 6 is attempted by between the 16th pin and the 13rd pin of microprocessor IC1, and the 6th capacitor C 6 is attempted by between the 16th pin and ground of microprocessor IC1.
As shown in Figure 2, central processing circuit 3 also includes the sensor alarming circuit, it is by sensitive switch SB1, SB2 constitutes, drive circuit 4 also includes the 3rd optocoupler IC3, the 4th optocoupler IC4, executive circuit also includes the 3rd, four relay J 3, J4, the 1st of microprocessor IC1,2 pin are respectively by the first sensitive switch SB1, the second sensitive switch SB2 is connected with ground, first, two sensitive switch SB1, SB2 is installed in and door, the corresponding position of window, the 3rd pin of microprocessor IC1 is connected with the input of the 3rd optocoupler IC3 by second resistance R 2, the output of the 3rd optocoupler IC3 is connected with the 12V output of power supply circuits by the coil of the 4th relay J 4, the common port of the 4th relay J 4 and terminals are connected respectively on the end of the 12V output on the road that powers and hummer, and the other end of hummer is connected with ground.
In conjunction with above-mentioned circuit, the operating principle of whole reception control circuit is described below:
1. close the remote control electric cipher code mechanical lock:
After connecting power supply, send the cipher instruction signal that shuts and start the alarm monitoring program by remote controlled transmitting circuit to the receiving circuit of reception control circuit, receiving circuit compares cipher instruction signal that receives and the password that self is provided with, when two passwords are consistent, the control signal of alarm monitoring program locked the locking mechanism locking and start by receiving circuit to the 20th pin input of microprocessor IC1, after microprocessor IC1 handles, if this moment, the first sensitive switch SB1 or the second sensitive switch SB2 were in long closure state, microprocessor IC1 passes through second resistance R 2 by the 3rd pin output control signal, the 3rd optocoupler IC3 drives 4 adhesives of the 4th relay J makes hummer send prompting sound three, to inform that the first sensitive switch SB1 or the second sensitive switch SB2 are in long closure state, promptly residing door of the first sensitive switch SB1 or the second sensitive switch SB2 or window do not close and put in place, at this moment, must manually remove the long closure state of the first sensitive switch SB1 or the second sensitive switch SB2 earlier, it is disconnected, be about to door or window pass and put in place, microprocessor IC1 just can send control signal and make locking mechanism locking lock and start the alarm monitoring program; If this moment first sensitive switch SB1 or the second sensitive switch SB2 are in the long state of opening, promptly explanation door or window shut, microprocessor IC1 sends control signal and starts the alarm monitoring program, simultaneously with locking mechanism locking lock, and drive 4 adhesives of the 4th relay J through microprocessor IC1 the 3rd pin output control signal by second resistance R 2, the 3rd optocoupler IC3 and make hummer send half second prompting sound, start with expression alarm monitoring program, lock core is locked.After this, in case occur causing first sensor SB1 closure because of human factor, from microprocessor IC1 the 1st pin input low level, after microprocessor IC1 handles, driving 4 adhesives of the 4th relay J from microprocessor IC1 the 3rd pin output control signal by second resistance R 2, the 3rd optocoupler IC3 makes hummer send 1 minute chimes of doom, simultaneously, drive the 3rd relay J 3 adhesive output switching signals from microprocessor IC1 the 8th pin output control signal by the 3rd resistance R 3, the 4th optocoupler IC4.If cause the second sensor SB2 closure because of human factor, from microprocessor IC1 the 2nd pin input low level, after microprocessor IC1 handles, drive 4 adhesives of the 4th relay J from microprocessor IC1 the 3rd pin output control signal by second resistance R 2, the 3rd optocoupler IC3 and make hummer send the chimes of doom in 5 seconds.
2. open the remote control electric cipher code mechanical lock:
Send the cipher instruction signal of unblanking and closing the alarm monitoring program by remote controlled transmitting circuit, receiving circuit compares cipher instruction signal that receives and the password that self is provided with, when two passwords are consistent, receiving circuit opens locking mechanism the control signal of locking and cutting out the alarm monitoring program to the 19th pin input of microprocessor IC1, after microprocessor IC1 handles, the automatic closing and alarm monitoring programme, microprocessor IC1 sends control signal makes locking mechanism open lock, simultaneously, microprocessor IC1 starts the delayed alarm program, pick up counting, and through the 13rd pin of microprocessor IC1 output high level, by the 6th resistance R 6 is 6 chargings of the 6th capacitor C, the 16th pin of microprocessor IC1 reads the voltage of rising, this voltage and the voltage of being set by adjustable resistance RW that reads from microprocessor IC1 the 17th pin are constantly compared, when the voltage at the 6th capacitor C 6 two ends is elevated to the magnitude of voltage of adjustable resistance RW setting, microprocessor IC1 determines to limit the delay time of unblanking and arrives, send control signal and start the alarm monitoring program, simultaneously with locking mechanism locking lock.The time of time-delay can be regulated by adjustable resistance RW.Before delay time does not arrive, with key manual unlocking mechanical lock locking bar, utilize the action of interlinked mechanism to make the closed or second press button FW2 disconnection of the first press button FW1, to microprocessor IC1 input signal, microprocessor IC1 stops immediately to 6 chargings of the 6th capacitor C, and resetting to original state, a whole set of mechanical lock is opened.
3. restriction uncaging time:
After locking mechanism is opened lock, if not manual unlocking mechanical lock and locking bar as yet in the delay time that adjustable resistance RW sets, utilize the action of interlinked mechanism to make the closed or second press button FW2 disconnection of the first press button FW1, to microprocessor IC1 input control signal, control microprocessor IC1 stops immediately to 6 chargings of the 6th capacitor C, then dash when identical when the voltage of the 6th capacitor C 6 with the voltage of adjustable resistance RW, microprocessor IC1 at first starts the alarm monitoring program, send control signal simultaneously with locking mechanism locking lock, and export control signal through microprocessor IC1 the 3rd pin and pass through second resistance R 2, the 3rd optocoupler IC3 drives 4 adhesives of the 4th relay J makes hummer send 1 minute chimes of doom, passes through the 3rd resistance R 3 from microprocessor IC1 the 8th pin output control signal simultaneously, the 4th optocoupler IC4 drives the 3rd relay J 3 adhesive output switching signals.Meanwhile, microprocessor IC1 enters any signal of no longer discerning receiving circuit output in a period of time automatically.During this period of time, even the correct operational order that sends by remote controlled transmitting circuit can not be opened lock with locking mechanism, thereby time that restriction is unblanked and the purpose of self-locking a period of time have been realized.In a word, locking mechanism opened lock after, mechanical lock must be opened in the time of setting, otherwise microprocessor IC1 can be with locking mechanism locking lock, and mechanical lock can not be opened in a period of time.
As shown in Figure 3, described locking mechanism can be that lock gall 6 is provided with through hole 7, and lock core 8 is provided with and through hole 7 corresponding holes 9, and reception control circuit stretches in the hole 9 of the through hole 7 of lock gall 6, lock core 8 versatilely by actuating mechanism control spacer pin 10.
The operating principle of above-mentioned locking mechanism is such: when needs shut, earlier close mechanical lock with key, send the cipher instruction signal with remote controlled transmitting circuit to reception control circuit then, reception control circuit is compared the cipher instruction signal that receives with the password that self is provided with, when two passwords are consistent, send control signal, make the actuating mechanism action, spacer pin 10 is limited relatively rotating between lock gall 6 and the lock core 8 by the through hole 7 of lock gall 6, hole 9 insertions of lock core 8.When needs are unblanked, earlier send the cipher instruction signal to reception control circuit by remote controlled transmitting circuit, after reception control circuit compares the cipher instruction signal that receives, when two passwords are consistent, send control signal, by actuating mechanism spacer pin 10 is extracted out from the hole 9 of the through hole 7 of lock gall 6, lock core 8, lock is opened by lockhole with key again.So, no matter whether the people in the house, can lock lock core internally, prevents that illegal person from opening lock by keyhole.
As shown in Figure 4, the hole 9 of described lock core 8 can be a blind hole 11.After spacer pin 10 inserted in the blind hole 11, other people can't touch spacer pin 10 at all, thereby realized the essence locking of lock core.
As shown in Figure 3, the hole 9 of described lock core 8 is the through holes 12 that communicate with lockhole.Like this, spacer pin 10 can be inserted in the lockhole by the through hole 12 of lock core 8, has not only limited relatively rotating between lock gall 6 and the lock core 8, can also prevent that other object from entering lockhole, prevents abnormal behavior of unblanking, and prevents that lockhole from being blocked by other object.
As shown in Figure 5, actuating mechanism can be to be made of the vertical tooth 15 on motor 13, gear 14, the spacer pin 10, and the motor 13 that is arranged on the lock body is meshed with vertical tooth 15 on the spacer pin 10 by gear 14.
As shown in Figure 6, actuating mechanism is that electromagnet 16, sleeve 17 and back-moving spring 18 constitute, and the electromagnet 16 that is arranged on the lock body is corresponding with spacer pin 10, and spacer pin 10 is positioned at sleeve 17 versatilely, back-moving spring 18 1 ends in the sleeve 17 are against on the sleeve 17, and the other end is against on the spacer pin 10.
Claims (10)
1. remote control electric cipher code mechanical lock, include locking mechanism and tapered end, remote controlled transmitting circuit and reception control circuit on the lock body, it is characterized in that: reception control circuit includes power supply circuits (1) and receiving circuit (2), central processing circuit (3), drive circuit (4) and the executive circuit (5) imported, output is connected successively, and executive circuit (5) is connected with locking mechanism.
2. remote control electric cipher code mechanical lock as claimed in claim 1, it is characterized in that: central processing circuit (3) includes microprocessor (IC1), drive circuit (4) includes the 5th optocoupler (IC5) and the 6th optocoupler (IC6), executive circuit includes first, two relay (J1, J2), two outputs of receiving circuit respectively with the 19th of microprocessor (IC1), 20 pin connect, the 5th pin ground connection of microprocessor (IC1), the 9th pin of microprocessor (IC1) is connected with the input of the 5th optocoupler (IC5) of drive circuit by the 4th resistance (R4), the 10th pin of microprocessor (IC1) is connected with the input of the 6th optocoupler (IC6) of drive circuit by the 5th resistance (R5), the output of the 5th optocoupler (IC5) is connected with the 12V output of power supply circuits by the coil of second relay (J2), the output of the 6th optocoupler (IC6) is connected with the 12V output of power supply circuits by the coil of first relay (J1), second relay (J2) is connected with locking mechanism respectively with the common port of first relay (J1), terminals of second relay (J2) and first relay (J1) are connected with ground, and their another terminals are connected with the 12V output of power supply circuits.
3. remote control electric cipher code mechanical lock as claimed in claim 2, it is characterized in that: central processing circuit (3) also includes restriction uncaging time circuit, restriction uncaging time circuit is by first resistance (R1), the 22 electric capacity (C22) and first press button (FW1) constitute, first press button (FW1) be arranged at lock body on the corresponding position of interlinked mechanism, the two ends of first resistance (R1) are attempted by between the 5V output of the 4th pin of microprocessor (IC1) and power supply circuits, the two ends of the 22 electric capacity (C22) and first press button (FW1) all are attempted by between the 4th pin and ground of microprocessor (IC1), perhaps, restriction uncaging time circuit is to be made of second press button (FW2), second press button (FW2) be arranged at lock body on the corresponding position of interlinked mechanism, second press button (FW2) is serially connected on total road of 5V output of power supply circuits.
4. remote control electric cipher code mechanical lock as claimed in claim 2, it is characterized in that: central processing circuit (3) also includes restriction uncaging time regulating circuit, restriction uncaging time regulating circuit is by the 6th resistance (R6), the 7th resistance (R7), adjustable resistance (RW) and the 6th electric capacity (C6) constitute, the two ends of adjustable resistance (RW) also connect between the 5V output and ground of power supply circuits, its adjustable end is connected with the 17th pin of microprocessor (IC1) by the 7th resistance (R7), the 6th resistance (R6) is attempted by between the 16th pin and the 13rd pin of microprocessor (IC1), and the 6th electric capacity (C6) is attempted by between the 16th pin and ground of microprocessor (IC1).
5. remote control electric cipher code mechanical lock as claimed in claim 2, it is characterized in that: central processing circuit (3) also includes the sensor alarming circuit, it is by sensitive switch (SB1, SB2) constitute, drive circuit (4) also includes the 3rd optocoupler (IC3), the 4th optocoupler (IC4), executive circuit also includes the 3rd, four relay (J3, J4), the 1st of microprocessor (IC1), 2 pin are respectively by first sensitive switch (SB1), second sensitive switch (SB2) is connected with ground, first, two sensitive switch (SB1, SB2) be installed in and door, the corresponding position of window, the 3rd pin of microprocessor (IC1) is connected with the input of the 3rd optocoupler (IC3) by second resistance (R2), the output of the 3rd optocoupler (IC3) is connected with the 12V output of power supply circuits by the coil of the 4th relay (J4), the common port of the 4th relay (J4) and terminals are connected respectively on the end of the 12V output on the road that powers and hummer, and the other end of hummer is connected with ground.
6. as claim 1,2,3,4,5 or 6 described remote control electric cipher code mechanical locks, it is characterized in that: locking mechanism is that lock gall (6) is provided with through hole (7), lock core (8) is provided with and the corresponding hole of through hole (7) (9), and reception control circuit is controlled spacer pin (10) by actuating mechanism and stretched versatilely in the hole (9) of the through hole (7) of lock gall (6), lock core (8).
7. remote control electric cipher code mechanical lock as claimed in claim 6 is characterized in that: the hole (9) of described lock core (8) is blind hole (11).
8. remote control electric cipher code mechanical lock as claimed in claim 6 is characterized in that: the hole (9) of described lock core (8) is the through hole (12) that communicates with lockhole.
9. remote control electric cipher code mechanical lock as claimed in claim 6, it is characterized in that: actuating mechanism is to be made of the vertical tooth (15) on motor (13), gear (14), the spacer pin (10), and the motor (13) that is arranged on the lock body is meshed with vertical tooth (15) on the spacer pin (10) by gear (14).
10. remote control electric cipher code mechanical lock as claimed in claim 6, it is characterized in that: actuating mechanism is that electromagnet (16), sleeve (17) and back-moving spring (18) constitute, the electromagnet (16) that is arranged on the lock body is corresponding with spacer pin (10), spacer pin (10) is positioned at sleeve (17) versatilely, back-moving spring (18) one ends in the sleeve (17) are against on the sleeve (17), and the other end is against on the spacer pin (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420060506 CN2721811Y (en) | 2004-07-27 | 2004-07-27 | Remote controlled electronic coding mechanical lock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200420060506 CN2721811Y (en) | 2004-07-27 | 2004-07-27 | Remote controlled electronic coding mechanical lock |
Publications (1)
Publication Number | Publication Date |
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CN2721811Y true CN2721811Y (en) | 2005-08-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200420060506 Expired - Fee Related CN2721811Y (en) | 2004-07-27 | 2004-07-27 | Remote controlled electronic coding mechanical lock |
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CN (1) | CN2721811Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103967342A (en) * | 2014-06-16 | 2014-08-06 | 青岛市光电工程技术研究院 | Electronic password mechanical lock |
CN104196367A (en) * | 2014-09-02 | 2014-12-10 | 青岛市光电工程技术研究院 | Mechanical lock unlocked through electronic passwords |
-
2004
- 2004-07-27 CN CN 200420060506 patent/CN2721811Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103967342A (en) * | 2014-06-16 | 2014-08-06 | 青岛市光电工程技术研究院 | Electronic password mechanical lock |
CN104196367A (en) * | 2014-09-02 | 2014-12-10 | 青岛市光电工程技术研究院 | Mechanical lock unlocked through electronic passwords |
CN104196367B (en) * | 2014-09-02 | 2016-09-28 | 青岛市光电工程技术研究院 | Electronic cipher code mechanical lock |
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