CN201134122Y

CN201134122Y - USB electronic lock

Info

Publication number: CN201134122Y
Application number: CNU200720131235XU
Authority: CN
Inventors: 张帆
Original assignee: SUZHOU INDUSTRIAL PARK ZHUNYONG SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: SUZHOU INDUSTRIAL PARK ZHUNYONG SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2007-12-05
Filing date: 2007-12-05
Publication date: 2008-10-15
Anticipated expiration: 2017-12-05

Abstract

The utility model discloses a USB electronic lock, comprising a lock body in which a control circuit board and an electric control actuator are provided, wherein the control circuit board is provided with a single-chip control circuit. The USB electronic lock is characterized in that the lock body is provided with a USB slot whose internal USB interface is provided on the control circuit board and connected with the single-chip control circuit. The utility model adopts a USB interface linked with a PC or the like via a data line to realize interaction and unlocking and to be powered by the PC or the like, and therefore, the utility model has small volume and is suitable for the installment on file cabinet or furniture. The utility model eliminates a special electronic key and can be unlocked without the electronic key.

Description

The USB electronic lock

Technical field

The utility model relates to the mechanical lock of a kind of microelectronics control, especially a kind of employing software electronic cipher technology, and by the USB electronic lock of USB interface with PC or similar devices interaction release.

Background technology

Traditional mechanical lock is pure physical construction, and common and unique key carries out the machinery coupling, and the release approach is few and single, and mechanical cipher is easy crack also; But also therefore the shortcoming that the contour structures that has key can't be unblanked in case damage distortion is replaced by electronic lock gradually at the traditional mechanical lock in some fields.

At present common electronic lock is that these are several for electronic lock, safety cabinet lock and automobile door lock basically on the society.The primary structure form of these electronic locks all comprises these four parts of lock body, electrical control actuator, control circuit board and electron key, its principle that realizes release is also very simple: electron key and lock body inner control circuit plate (mainly being integrated with single-chip microcomputer or microcontroller) exchange encrypted message, carry out the password comparison, by then release, signal is passed to electrical control actuator actuating motor drive locking bolt open and close.Yet the shortcoming of these electronic locks is: 1. all be provided with the power supply of control circuit board in lock body inside, add the power supply of electrical control actuator, make overall volume not little, and have the threat of power-fail; 2. the form of expression of electron key is various, for example: built-in numeric keyboard, IC-card, radio-frequency card or radio-frequency (RF) remote or even high-grade a little information button and Fingerprint Identification Unit etc., yet this electron-like key often needs to dispose modification that special manager carries out the inner cipher canned data, resets and eliminate, complex operation for domestic consumer, strongly professional, and the cost of a whole set of electronic lock is also higher; Carry trouble 3.IC card, radio-frequency card or similar electron key still exist, and in case lose will cause can't release shortcoming.

On the popularization angle of electronic lock, its utilization also obviously can not only be confined to present electronic lock, safety cabinet lock and automobile door lock, and should obtain in the larger context utilizing.For example facility such as household small-size bin or documents cabinet also can be loaded onto easily electronic lock and then replace traditional mechanical lock.Yet present known electronic lock is owing to exist aforesaid three shortcomings obviously to be not suitable for applying to file cabinet or similar furniture bin.

Summary of the invention

The utility model purpose is: at the defective of the known electronic lock of mentioning in the prior art, a kind of employing software electronic cipher technology is provided, and the USB electronic lock by USB interface and PC or the interactive release of similar devices, compare known electronic lock and be more suitable for that utilization replaces the traditional mechanical lock on facilities such as small-sized bin of family expenses or documents cabinet.

The technical solution of the utility model is: a kind of USB electronic lock comprises lock body and is installed in lock body interior control circuit board and electrical control actuator to have single chip machine controlling circuit on the control circuit board; It is characterized in that lock body is provided with the USB slot, the USB interface in the USB slot is arranged on the control circuit board, and is connected with single chip machine controlling circuit.

The utility model does not limit for the concrete mechanical structure form of lock body, can be with reference to prior art, and lock body should be detachable structure at least certainly, is convenient to maintenance or replacing to inner control circuit board and electrical control actuator; Have the mobile that is driven by inner electrical control actuator on the lock body simultaneously, the structural style of this mobile can be fully according to existing dead bolt, lock pin, locked flapper or other structural styles; The execution action of corresponding this mobile can be telescopic, also can be rotary type, perhaps other forms depend on the output type of belt drive of electrical control actuator fully.

Action is carried out in two of unblank and the lockings of electrical control actuator of the present utility model can be fully by the single chip machine controlling circuit Automatic Control in the control circuit board; Certainly do not get rid of automanual control forms yet.

For example: the electrical control actuator in the utility model adopts the combination of micro motor and driving gear set, the input end of micro motor is connected with control circuit board, and be fixed with driving gear on the output rotor, and mesh with follower gear, fixing mobile on the driven gear shaft, then this mobile is a rotary type when carrying out action, generally just adopts the locking baffle plate.Control circuit board provide the signal controlling motor rotor clockwise or be rotated counterclockwise, and pass to the locking baffle plate and finish and lock or the release action, this electrical control actuator is full-automatic form.

Perhaps the electrical control actuator in the utility model also can adopt the combination of electromagnetic switch and latch assembly, latch assembly specifically comprises locking bar, back-moving spring, push rod and spring push-rod, locking bar is articulated in the lock body and with drive-connecting shaft and fixes, and the locking baffle plate of lock body outside also is fixed on this drive-connecting shaft, keeps the synchronous rotation with locking bar.Back-moving spring one end is fixed in the lock body, and the other end is fixed on the locking bar.Spring push-rod one end forms the pushing and pressing button that is positioned at surface of lock body, and the other end is fixed in the lock body; One end of push rod is hinged on the spring push-rod, and the other end is hinged on the locking bar.Have locking hole on the locking bar, under lockup state, a spring contact on the electromagnetic switch supports in the locking hole motion of block locking bar; And make that when single chip machine controlling circuit provides signal after the coil magnetic circuit mechanism energising in the electromagnetic switch, spring contact is inhaled into and leaves locking hole in the electromagnetic switch, under the traction of back-moving spring, locking bar rotates finishes the release action.If finish the action of locking, then need the artificial pushing and pressing button that promotes, force push rod to drive locking bar and overcome the rotation of back-moving spring power, till the compressing spring contact snaps in the locking hole, do not having to deviate from locking hole under the external force effect after spring contact snaps in locking hole certainly.This electrical control actuator is semi-automatic form.

Except usb interface module and single-chip microcomputer, also comprise conventional electrically-erasable memory (EEPROM), Sheffer stroke gate storer, output driving circuit and LED light display circuit in the single chip machine controlling circuit in the utility model.Have the control program code that enrolls in advance in the program storage of single-chip microcomputer (ROM), these codes comprise: read PC or similar devices and import the program code of password, deposit password in the program code of the program code of EEPROM, the program code of reading eeprom content, password comparison and the program code that comparison result is exported.

The utility model generally is installed on the standing private storing bodies such as office's file cabinet door near desktop computer, household bin door, desk drawer, certain popularizing owing to mobile communication terminals such as portable removable computer and similar PDA, private storing body is not limited to the form of enumerating previously fully, and also unimportant under away from the situation of desktop computer.

After USB interface on the utility model inserted on the PC of running or the similar devices by the usb data transmission line, single-chip microcomputer promptly moved control program.The password setting and the service routine that have the utility model USB electronic lock in PC or the similar devices in advance, when using first, the user will enter set condition, PC or similar devices can point out the user to input password, and require the user to input password once more to examine, point out the user to select to land and write down password whether on the net simultaneously, if select record, the control program of single-chip microcomputer is then read this input password, carries out the program code that this password is deposited in EEPROM then.When entering user mode, PC or similar devices require the user to input password, the control program of single-chip microcomputer is then read this input password, and carries out and read the program code that deposits password in the EEPROM in, carries out the program code of password comparison and the program code that comparison result is exported then.If compare successfully, then start to carry out and lock or the release action by Sheffer stroke gate storer record and to output driving circuit signal controlling electrical control actuator; If comparison failure, then the input number of times of misregistration password and date and require the user to re-enter password.

The utility model advantage is:

1. owing to adopt USB interface and PC or the direct interactive release of similar devices, its internal control circuit plate and electrical control actuator are by PC or similar devices power supply, so in lock body, need not to be provided with their power supply, reduced the electronic lock volume, be adapted at installing on file cabinet or the similar furniture bin.

2. owing to only need a usb data transmission line, save the special electron key of peripheral hardware with the connection of PC or similar devices, can not cause cause because of losing of electron key can't release trouble.

3. owing to the password setting of the utility model USB electronic lock, reset and password is eliminated the supervisor programmed function and can directly be realized that by popular PC media this is very convenient for domestic consumer.

4. because PC or similar devices, the popularizing of especially portable removable computer, the accommodation and the place of the utility model USB electronic lock will be more and more wider, be beneficial to applying of electronic lock undoubtedly, have high practicality.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the exterior mechanical structural representation of the utility model first specific embodiment;

Fig. 2 is the internal mechanical structural representation of the utility model first specific embodiment;

Fig. 3 is micro motor and a gear set physical construction synoptic diagram in the utility model first specific embodiment;

Fig. 4 is the exterior mechanical structural representation of the utility model second specific embodiment;

Fig. 5 is the internal mechanical structural representation of the utility model second specific embodiment;

Fig. 6 is electromagnetic switch and a latch assembly physical construction synoptic diagram in the utility model second specific embodiment;

Fig. 7 is single-chip microcomputer and the usb interface module connecting circuit schematic diagram in the utility model;

Fig. 8 is the password storage eeprom circuit schematic diagram in the utility model;

Fig. 9 is output driving circuit and the LED light display circuit schematic diagram in the utility model;

Figure 10 is program setting of the present utility model and workflow diagram.

Wherein: 1, lock body; 2, tapered end panel; 3, case; 4, lock tail surface plate; 5, micro motor; 6, driving gear; 7, follower gear; 8, locked flapper; 9, set collar; 10, set screw; 11, USB slot; 12, USB interface; 13, control circuit board; 14, electromagnetic switch; 15, locking bar; 151, locking hole; 16, back-moving spring; 17, push rod; 18, spring push-rod; 19, pushing and pressing button; 20, LED light.

Embodiment

Embodiment 1: Fig. 1, Fig. 2, Fig. 3 are the physical construction synoptic diagram of a kind of specific embodiment of the utility model USB electronic lock, and it comprises lock body 1 and is installed in control circuit board 13, automatically controlled driving mechanism in the lock body 1.Lock body 1 is a straight-tube shape, comprises that tapered end panel 2, lock tail surface plate 4 reach and the detachable case 3 of both clampings.Be arranged with the plurality of fixed ring 9 relative with tapered end panel 2 on the case 3, cross-under has location spiral shell 10 on the set collar 9, and tapered end panel 2 is screwed into fixing by set screw 10 with the corresponding panel on set collar 9 clamping cabinet doors or the drawer again when specifically installing.

Tapered end panel 2 is provided with USB slot 11, and the usb 1s 2 in the USB slot 11 are arranged on the control circuit board 13, and is connected with single chip machine controlling circuit in the control circuit board 13.Also being provided with simultaneously LED light 20 on the tapered end panel 2 is connected with single chip machine controlling circuit in the control circuit board 13 through wiring.Automatically controlled driving mechanism is the combination of micro motor 5 and driving gear set, the input end of micro motor 5 is connected with single chip machine controlling circuit in the control circuit board 13 through wiring, and be fixed with driving gear 6 on the output rotor, and with follower gear 7 engagement, be fixed in the locked flapper 8 outside the lock tail surface plate 4 on the driven gear shaft, the execution of locked flapper 8 is a rotary type when moving, single chip machine controlling circuit provides the clockwise of signal controlling motor rotor or is rotated counterclockwise, and pass to locked flapper 8 and finish and lock or release action, this electrical control actuator is full-automatic form.

In conjunction with Fig. 6, Fig. 7, Figure 8 shows that the single chip machine controlling circuit schematic diagram of present embodiment USB electronic lock, this single chip machine controlling circuit schematic diagram is mainly by single-chip microcomputer with USB interface connecting circuit schematic diagram, password storage eeprom circuit schematic diagram, output drive and LED light display circuit schematic diagram three parts are formed.

Single-chip microcomputer as shown in Figure 6 and USB interface connecting circuit schematic diagram mainly are made up of single-chip microcomputer IC1, usb interface module A, capacitor C 1～C8 and crystal CR etc.The I/O serial line interface of single-chip microcomputer IC1: pin 6, pin 8 are connected with pin 3, the pin 2 of usb interface module A respectively; The pin 1 of usb interface module A is that electric level interface is connected with pin 4, the pin 5 of single-chip microcomputer IC1, and this electric level interface is through capacitor C 3, C4 and C6 ground connection simultaneously, and wherein C4 is a polar capacitor, and the end of C6 also connects the pin 43 of single-chip microcomputer IC1; The pin 2 of usb interface module A, pin 3 are respectively through capacitor C 2, C1 ground connection.The pin 4 of usb interface module A is the ground connection interface, and the pin 9 of single-chip microcomputer IC1, pin 10 all are connected with the pin 4 of usb interface module A, and the pin 7 of single-chip microcomputer IC1 is through capacitor C 5 ground connection.Capacitor C 7, C8 one end ground connection, both other ends connect to form oscillating circuit with pin 11 and the pin 12 of crystal CR two ends and single-chip microcomputer IC1 respectively.

Password storage eeprom circuit schematic diagram as shown in Figure 7 mainly is made up of electrically-erasable memory (EEPROM) IC2, capacitor C 9 and resistance R 1, R2 etc.Electrically-erasable memory IC2 in the present embodiment selects AT24C02 for use, and pin 1, the pin 8 of this electrically-erasable memory connect level, pin 2, pin 3, pin 4 equal ground connection; The pin 5 of electrically-erasable memory IC2 and pin 6 are respectively pin 19 and the pin 21 that serial data line and clock line meet single-chip microcomputer IC 1 respectively, connect level through resistance R 2 and R1 respectively simultaneously; Capacitor C 9 one termination level, the pin 7 of another termination electrically-erasable memory IC2 is ground connection simultaneously.

Output driving as shown in Figure 8 and LED light display circuit schematic diagram, mainly by Sheffer stroke gate memory IC 3, resistance R 3～R7, compositions such as triode Q1, micro motor MOTO and light emitting diode D1.Two input ends of Sheffer stroke gate memory IC 3 are connected with pin 14 with the pin 3 of single-chip microcomputer IC1 respectively, connect level through resistance R 3 and R4 respectively simultaneously; The output terminal of Sheffer stroke gate memory IC 3 connects triode Q1 base stage through resistance R 5, and the emitter of triode connects level, and collector is successively through micro motor and resistance R 6 ground connection.Light emitting diode D1 is connected on the pin 17 and pin 18 of single-chip microcomputer IC1, and its base stage is through resistance R 7 ground connection, and the effect of light emitting diode D1 provides the power on/off signal after single chip machine controlling circuit connects on PC or the similar devices promptly as conventional LED light 20.

Comprise functional modules such as CPU, RAM, ROM, I/O among the single-chip microcomputer IC1 of present embodiment, be solidified with program code among the ROM, comprise the program code of reading PC or similar devices input password, deposit password the program code of the program code of EEPROM, the program code of reading eeprom content, password comparison in and the program code of comparison result output.

After the usb 12 of present embodiment inserted on the PC of running or the similar devices by the usb data transmission line, single-chip microcomputer IC1 promptly moved control program through initialization procedure.The password setting and the service routine that have present embodiment USB electronic lock in PC or the similar devices in advance describe in conjunction with the utility model program setting shown in Figure 10 and the workflow diagram principle of work to present embodiment.

When using first, the user will enter the password setting program, PC or similar devices can point out the user to input password, and require the user to input password once more to examine, point out the user to select to land and write down password whether on the net simultaneously, if select record, then the control program of single-chip microcomputer IC1 is read this input password, and execution deposits this password in the program code of EEPROM.Continue the prompting user on PC or the similar devices and whether enter service routine, if the user select be, then enter user mode, if select otherwise data on file and termination routine disconnect with single-chip microcomputer IC1 between be connected.

When the user reuses the utility model USB electronic lock, will select to enter password setting program or service routine by the user.If the user selects to enter service routine, can show the normal information that connects of USB electronic lock on PC or the similar devices and require the user to import unlocking cipher, the control program of single-chip microcomputer IC1 is then read the unlocking cipher of input, and carry out and read the program code that deposits password in the EEPROM before in, carry out the program code of password comparison and the program code that comparison result is exported then.If compare successfully, then by Sheffer stroke gate memory IC 3 records and to output driving circuit signal controlling electrical control actuator, be micro motor 5 startup execution unlatchings or the release action in the present embodiment, and the record of unblanking, PC or similar devices can continue to move special supervisory routine then, the data of uploading among the EEPROM are handled, and mainly are processes such as finish that password is eliminated or reset, and the user also can termination routine certainly.If comparison failure, then circulate by the input number of times of single-chip microcomputer IC1 misregistration password and date and from the service routine process of beginning, require the user to continue to input password, compare successfully up to password.The locking process of present embodiment also is to finish by the service routine on PC or the similar devices.

As Fig. 4, Fig. 5, Fig. 6 is the physical construction synoptic diagram of another specific embodiment of the present utility model, and it comprises lock body 1 equally and is installed in control circuit board 13, automatically controlled driving mechanism in the lock body 1.Lock body 1 is a straight-tube shape, comprises that tapered end panel 2, lock tail surface plate 4 reach and the detachable case 3 of both clampings.Be arranged with the plurality of fixed ring 9 relative with tapered end panel 2 on the case 3, cross-under has set screw 10 on the set collar 9, and tapered end panel 2 is screwed into fixing by set screw 10 with the corresponding panel on set collar 9 clamping cabinet doors or the drawer again when specifically installing.Tapered end panel 2 is provided with USB slot 11, and the usb 1s 2 in the USB slot 11 are arranged on the control circuit board 13, and is connected with single chip machine controlling circuit in the control circuit board 13.Also being provided with simultaneously LED light 20 on the tapered end panel 2 is connected with single chip machine controlling circuit in the control circuit board 13 through wiring.The single chip machine controlling circuit of present embodiment 2 and principle of work thereof are identical with embodiment 1, so no longer stating more.

And adopt the combination of electromagnetic switch 14 and latch assembly with embodiment 1 electrical control actuator that different is in the present embodiment 2, latch assembly specifically comprises locking bar 15, back-moving spring 16, push rod 17 and spring push-rod 18, locking bar 15 is articulated in the lock body and with drive-connecting shaft and fixes, and the locked flapper 8 of lock body 1 outside also is fixed on this drive-connecting shaft, and maintenance is synchronized with the movement with locking bar 15.Back-moving spring 16 1 ends are fixed in the lock body 1, and the other end is fixed on the locking bar 15.Spring push-rod 18 1 ends form the pushing and pressing button 19 that is positioned at lock body 1 surface, and the other end is fixed in the lock body 1; One end of push rod 17 is hinged on the spring push-rod 18, and the other end is hinged on the locking bar 15.Have locking hole 151 on the locking bar 15, under lockup state, a spring contact on the electromagnetic switch 14 (owing to the view reason does not mark) supports in the locking hole 151 motion of block locking bar 15; And make that when single chip machine controlling circuit provides signal after the coil magnetic circuit mechanism energising in the electromagnetic switch 14, spring contact is inhaled into and leaves locking hole 151 in the electromagnetic switch 14, under the traction of back-moving spring 16, locking bar 15 rotates finishes the release action.If finish the action of locking, then need the artificial pushing and pressing button 19 that promotes, force push rod 17 to drive locking bar 15 and overcome 16 rotations of back-moving spring power, till the compressing spring contact snapped in the locking hole 151, spring contact snaps in locking hole 151 backs was not certainly having can't to deviate from locking hole 151 under the external force effect.Obviously embodiment 1 this electrical control actuator is semi-automatic form relatively, because after adopting this electrical control actuator, the process of locking of the utility model USB electronic lock need not the programmed control of PC or similar devices, so can effectively prevent to cause because of outage the generation of the situation of can't locking.

Claims

1. a USB electronic lock comprises lock body (1) and is installed in lock body (1) interior control circuit board (13) and electrical control actuator, and control circuit board has single chip machine controlling circuit on (13); It is characterized in that lock body (1) is provided with USB slot (11), the USB interface (12) in the USB slot (11) is arranged on the control circuit board (13), and is connected with single chip machine controlling circuit.

2. USB electronic lock according to claim 1, it is characterized in that described electrical control actuator is the combination of micro motor (5) and driving gear set, single chip machine controlling circuit in the input end of micro motor (5) and the control circuit board (13) is connected, and be fixed with driving gear (6) on the output rotor, and with follower gear (7) engagement, the fixing execution locked and the locking baffle plate (8) of block action on the driven gear shaft.

3. USB electronic lock according to claim 1, it is characterized in that described electrical control actuator is the combination of electromagnetic switch (14) and latch assembly, latch assembly comprises locking bar (15), back-moving spring (16), push rod (17) and spring push-rod (18), locking bar (15) is articulated in the lock body (1) and with drive-connecting shaft and fixes, the fixing simultaneously locking baffle plate (8) of locking with block action of carrying out on the drive-connecting shaft; Back-moving spring (16) one ends are fixed in the lock body (1), and the other end is fixed on the locking bar (15); Spring push-rod (18) one ends form the pushing and pressing button (19) that is positioned at lock body (1) surface, and the other end is fixed in the lock body (1); One end of push rod (17) is hinged on the spring push-rod (18), and the other end is hinged on the locking bar (15); Single chip machine controlling circuit in the input end of electromagnetic switch (14) and the control circuit board (13) is connected, and output terminal is a spring contact by the driving of Inside coil magnetic circuit mechanism, can snap in by the activity of locking bar (15) in the locking hole (151) on the locking bar (15).

4. USB electronic lock according to claim 1 is characterized in that also being provided with on the lock body LED light (20) and is connected with single chip machine controlling circuit in the control circuit board (13).