CN206337913U - Based on passive radio-frequency identification labeled intelligent door lock - Google Patents

Abstract

The utility model is related to Smart Home technical field, specifically refers to a kind of intelligent door lock of the key pair of physics pairing for integrating mechanical key and passive radio frequency identification encryption chip.Existing door lock is combined by the utility model with passive radio frequency identification technique, realize that the key pair of passive radio frequency identification encryption chip and the physical arrangement of mechanical key match to carry out dual safety certification protection, user is as good as completely in usage experience with existing standard machinery key, but in the security of door lock, it is better than present standard machinery door lock and various intelligent door locks in terms of property easy to use, and because the passive radio-frequency identification labeled ID codes for being built in key have uniqueness, user can recognize that the key, and be used for state and reviewed, its authority is managed and configured, drastically increase the security of lockset, existing door keys are solved to be imitated, intelligent door lock is because of security hidden trouble caused by the factors such as network failure.

Description

Based on passive radio-frequency identification labeled intelligent door lock

Technical field

The utility model is related to Smart Home technical field, specifically refers to a kind of physics pairing for collecting mechanical key and passive The intelligent door lock that the key pair of radio frequency identification encryption chip is integrated.

Background technology

Currently, the lock that the universal intelligent lock of in the market is mainly opened the door with on-mechanical key, such as present hotel, office field Etc. general sensing magnetic card type smart lock.The principle of universal intelligent lock is real by external information identifying system and built-in system Existing information is exchanged, if exchanging successfully, and the mechanical actuating mechanism progress action in driving lock body is so as to open door.Smart lock by In mechanically being opened the door without user, so as to be brought conveniently to user.But it is due to that the unlocking of people for a long time is practised The used and mode of thinking, this induction type intelligent door lock cannot be introduced into average family all the time, and reason is this induction type door lock Psychologically give people it is a kind of it is unsafe feel, the key of card form exists in carrying and management process many allows people Uneasy factor, is such as not easy identification, easy to lose, insensitive, key and is easily replicated, simultaneously as people unlock for many years The mode of thinking of acquiredhelpless feeling, user still more likes traditional mode for inserting a key into lockhole, rotating lock core to unlock, A kind of steady and sure sense of security of user can so be given.

With the development of science and technology, people constantly develop the higher intelligent door lock of various securities：

(1) password authentification, such as Chinese invention patent application CN103982087A disclose a kind of novel intelligent electronic cipher Lock.The mark that such invention is passed through using the correct password of user input as authentication, with physical key can be saved Advantage, but have the disadvantage：If password sets excessively simple, easily it is cracked, if password sets excessively complicated, is easily lost Forget.

(2) fingerprint authentication, such as Chinese invention patent application CN104036564A disclose a kind of suitcase Fingerprint Lock.Such The mark that invention is passed through using the correct fingerprint of user input as authentication, has the advantages that physical key can be saved, but lack Putting is：There is the possibility (such as finger drying, greasy dirt) of rejection；Fingerprint is possible to be forged.

(3) iris verification, such as Chinese invention patent application CN103806789A disclose one kind and possess iris identifying function Intelligent safe.Such invention is to collect the mark that correct iris passes through as authentication, with can save reality Body key, the higher advantage of security, but have the disadvantage：Iris image should not be gathered, and the person of needing to use shows specific posture Coordinate collection, influence the comfortableness used, and cost is too high, is not often afforded to do for common family.

(4) internet intelligent door lock, such as Chinese invention patent application CN104574613A disclose a kind of based on internet Intelligent door lock system, the door lock is connected to the network of user's family by wired or wireless way, and passes through real-time performance The real-time interconnection of user's terminal device and lockset so that user can remotely check, control lockset.This lockset is general It is card-scanning type smart lock, and this intelligent door lock system needs the network equipment and lockset of family to remain presence, This is a kind of huge consumption for Internet resources and power supply energy, and normal use of lockset depends critically upon network, its The scope of application has larger limitation.

With the development of passive radio frequency identification (Radio Frequency Identification, RFID) technology, RFID Label with its low cost, distinguish sensitive, safe the features such as be increasingly widely applied, similarly, by RFID and door Locking the technology combined also turns into the invention of research direction, such as Publication No. CN104652964A of many lockset industry research staff Patent application and Publication No. CN2539810Y utility model patent, disclose the technology for being combined RFID label tag with door lock Scheme：RFID label tag is packaged in the end of key, the reading equipment of RFID label tag is set at door lock end, and is provided with and the reading The controlling organization (such as electromagnetism door bolt or electromagnetic switch) that equipment is connected, key lock tooth carries out conventional machine with lock core during insertion key Tool structure matching certification, meanwhile, the RFID at door lock end reads the RFID label tag that equipment reads key tip, and electronics is carried out to key Certification is recognized, only when mechanical certification and digital certificate all succeed, door lock could be opened, otherwise, controlling organization is by bolt lock It is fixed so that can not to open the door, be simultaneously emitted by warning information.

The above-mentioned door lock for having merged RFID technique has preferable representativeness, and it is not only remained, and user is now conventional to open Lock mode, and on the basis of door lock conventional mechanical certification, add the electronic recognition certification of RFID label tag, double authentication side Formula make it that the security of door lock is largely increased.

But above-mentioned technical proposal is only referred to a conceptual technology contents, for the specific knot of door lock ＆ key Structure information is completely without reference to also, on there is not enough place in method for unlocking in above-mentioned two documents： Electromagnetism fastens (or electromagnetic switch) with a bolt or latch and the structure of door lock and common door lock under blank state, such a state is under non-unlocking condition It is as good as, only after key authentification failure, electromagnetism door bolt (or electromagnetic switch) just starts locking dead bolt, and such structure design is still There is technology unlocking, and if off the power supply in door lock, then electromagnetism door bolt (or electromagnetic switch) can not thoroughly be sent out The effect of waving, the intelligent door lock is as good as with common door lock, then there is larger potential safety hazard.

Utility model content

The utility model aims to overcome that the defects such as existing intelligent door lock security is high, inconvenient for use, and there is provided one kind Integrate the intelligent door lock of the physics pairing of mechanical key and the key pair of passive radio frequency identification encryption chip, it is safe The unlocking custom of masses is not changed again simultaneously.

To achieve the above object, technical solution adopted in the utility model is：Based on passive radio-frequency identification labeled intelligence Energy door lock, including mechanical key and lock body two parts, the end of the mechanical key are encapsulated by passive radio frequency identification chip and line The RFID tag constituted is enclosed, the lock body includes being provided with the reading of label in tapered end and the lock core being plugged in tapered end, tapered end The jack that mechanical key is provided with device, lock core is taken, the reading device includes wiring board, the induction coil being arranged in tapered end And battery, the induction coil and battery be respectively electrically connected to wiring board, the radio frequency identification for recognizing mechanical key tip Label, tapered end bottom is provided with through hole, and lock core is plugged in the through hole of tapered end bottom and can rotated in through hole, inside the tapered end Offer electromagnetism valve opening, be fixed with magnetic valve in it, the magnetic valve is electrically connected to wiring board, the lock core top offer with The corresponding spool bore of the electromagnetism valve opening so that the magnetic valve is under non-unlocking condition, and valve element is natural under gravity Fall into spool bore, valve element upper end is located in the magnetic valve, and lower end is located in the spool bore, and the lock core is locked, And after the match is successful for the mechanical key of insertion, valve element can be all retracted in magnetic valve, and the lock core is unlocked.

Realize that the technical scheme of the utility model purpose is still further comprised, the radio frequency of the mechanical key end encapsulation is known Distinguishing label is tubulose RFID label tag, and the longitudinal direction of tubulose RFID label tag is toward the rear and front end of key, and longitudinal centre line Overlapped with the center line of key；The tubulose RFID label tag includes seal pipe, coil, bar magnet and passive radio frequency identification chip four Part, the coil is wound on bar magnet to increase the magnetic flux of coil, and two ends and the passive radio frequency identification chip of coil are welded Fixed, the passive radio frequency identification chip, coil and bar magnet are packaged in seal pipe.

Existing door lock is combined by the utility model with passive radio frequency identification technique, realizes passive radio frequency identification encryption chip Key pair and the physical arrangement of mechanical key match to carry out dual safety certification protection, user in usage experience with it is existing Some standard machinery keys are as good as completely, but are better than in terms of the security, property easy to use in door lock present common Mechanical door lock and various intelligent door locks, and because the passive radio-frequency identification labeled ID codes for being built in key have uniqueness, use Family can recognize that the key, and be used for state and reviewed, and its authority is managed and configured, lockset is drastically increased Security, solve existing door keys be imitated, intelligent door lock because caused by the factors such as network failure potential safety hazard ask Topic.

Brief description of the drawings

Fig. 1 is the utility model three-dimensional structure diagram；

Fig. 2 is the utility model structure decomposition figure；

Fig. 3 is the sectional structure chart that the utility model lock core is locked under state；

Fig. 4 is the sectional structure chart under the utility model lock core released state；

Fig. 5 is Fig. 4 partial enlarged drawing；

Fig. 6 is utility model works schematic diagram；

Fig. 7 is utility model works circuit diagram；

Fig. 8 is the utility model flow process chart.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of the utility model protection.

As depicted in figs. 1 and 2, it is described in the utility model a kind of based on passive radio-frequency identification labeled intelligent door lock, including Mechanical key and lock body two parts, the end of the mechanical key encapsulate the radio frequency being made up of passive radio frequency identification chip and coil Label is recognized, the lock toothed portion of front end passes through the lock of different physical arrangements using the present higher blade lock of security on the market The different lock core of tooth difference pairing, reaches the purpose for preventing from opening by mistake；The lock body includes being provided with label in tapered end and lock core, tapered end Reading device, tapered end bottom is provided with through hole, and lock core is plugged in the through hole of tapered end bottom and can rotated in through hole, in lock core Jack provided with mechanical key, for inserting mechanical key, and the pairing of the lock tooth progress mechanical structure to mechanical key, to test Demonstrate,prove the legitimacy of key.

The lock body leading section is provided with panel 11, and the panel 11 is with lock body into vertical stratification, and the rear portion of panel 11 is set There is panel bonnet 13, the panel bonnet 13 is fastened in after the cavity body sealed on panel 11 and with panel formation, panel The opposite side of lid 13 is screwed on tapered end 2.Panel 11 is provided with after the keyhole 12 corresponding with the lock core 3, panel Lid 13 is provided with the keyhole corresponding with keyhole 12 and lock core 3, and therefore, mechanical key 1 may pass through panel and panel bonnet Keyhole insertion lock core 3 in, such as Fig. 3 and Fig. 4.

The tag reader set in tapered end includes wiring board 4, induction coil 5 and battery 9, and the wiring board 4 leads to Screw is crossed to be fixed in the sealing cavity body on panel bonnet 13 and positioned at panel bonnet 13 with the formation of panel 11.Induction coil 5 Wiring board 4 is electrically connected to, it is located at the back of panel bonnet 13, and collar is around in outside lock core 3 centered on the lock core 3.Lock Body rear end is fixed with openable bonnet, and battery 9 is fixed in bonnet and is electrically connected to wiring board 4.Lock body end passes bonnet And counter-lock switch 10 is connected with, for being locked from indoor.

Electromagnetism valve opening 21 is offered inside the tapered end 2, magnetic valve 6 is fixed with it, the magnetic valve 6 is electrically connected to line Road plate 4, the top of lock core 3 offers the spool bore 31 corresponding with the electromagnetism valve opening 21, as shown in Figure 2, Figure 3 and Figure 4. The control signal that the magnetic valve 6 is used for run-down lines plate 4 is cut between non-adhesive valve element and adhesive valve element two states Change：Under non-unlocking condition, the state in non-adhesive valve element, valve element 61 is naturally fallen in spool bore 31 under gravity, The upper end of valve element 61 is located in the magnetic valve 6, i.e., in tapered end 2, and lower end is located in the spool bore 31, i.e., in lock core 3, valve element 61 are stuck between tapered end 2 and lock core 3, so as to the lock core 3 be locked, such as Fig. 3；And when the mechanical key inserted, the match is successful Afterwards, magnetic valve 6 is transferred to attracting state, and valve element 61 can be all retracted in magnetic valve 6, and the lock core 3 is unlocked, such as Fig. 4.

Because the utility model is powered using dry cell to wiring board, when battery electric power is not enough, the reading device It will be unable to start work and the RFID tag of mechanical key end be identified, even if therefore inserting correct key, line Road plate is due to that can not make electromagnetic valve work pick up valve element, and user still can not open door, have impact on the normal of user and use.

It is such a to avoid the occurrence of, set in the cavity body that panel 11 described in the utility model is formed with panel bonnet 13 Have and spring 71 is fixed with least one contact switch passage, passage, the front end of spring, which is fixed with, is connected to touching for wiring board 4 Point switch 7, the contact switch 7 is located between keyhole 12 and lock core 3, and can be by contact when inserting key in keyhole 12 Switch 7 is pushed into contact switch passage, the insert state for detecting key, and is started or closed tag reader.

Under without key insert state, reading device in a dormant state, consumes few electricity, when inserting key, The insertion that contact switch detects key produces level triggers signal to wiring board, and wiring board wakes up master control in a dormant state Chip, main control chip then wakes up various peripheral hardwares, and reading device is started working, electromagnetic field is externally launched by induction coil to examine Test the matching of key.After examining correct, the LED light 8 that panel surface is fixed shows green, while user can pass through key Spoon rotates lock core and opened the door, and after user completes to open the door and extracts key, contact switch resets again, and reading device is again started up treating Machine pattern.Therefore, the reading device of this intelligent door lock only being operated in a flash in enabling, and due to this reading device with Passive radio-frequency identification labeled low power dissipation design so that the enough users of electricity of battery normally use the 2-3 years.

Above-mentioned discussion can be calculated as follows with formula：

The utility model reading device stand-by power consumption is that, less than 20uA, it is only having key insertion, during triggering contact switch Working condition is just enabled, whole machine operating power consumption is less than 60mA.It is assumed that user opens the door 10 times daily, open the door every time 5 seconds duration (working time is 5 seconds when i.e. reader opens the door every time), 365 days 1 year, then,

The electricity of dry cell is 1000mAh, then,

When battery electric quantity is not enough, the battery cover that user voluntarily takes door lock rear end apart changes battery, simple and easy to do, It is safe and reliable.

Contact switch passage described in the utility model embodiment is two groups, and two groups of limited blocks are corresponded to about 72 is fixed on face On plate bonnet 13, so that two groups of contact switch passages are formed in panel 11 and the cavity body of the formation of panel bonnet 13, such as Fig. 2 institutes Show.Two groups of contact switch passages are symmetrical arranged centered on keyhole 12, fix bullet in two groups of contact switch passages respectively Spring 71, the front end of spring is fixed with the contact switch 7 for being connected to wiring board, and two groups of contact switch are under without key insert state Contact with each other between keyhole 12 and lock core 3, and the separation of each contact switch can be examined when inserting key in keyhole 12 Survey the insert state of key.

The quantity of LED light 8 is at least one, and when quantity is one, the LED light is bi-colour light, when When LED light is monochromatic burner, its quantity is two or more, and is respectively electrically connected to wiring board 4, for according to door lock Working condition different colors is shown to point out user.

Carry with, therefore need during due to people key can be all placed in clothes pocket when daily outgoing or wrapped Want key small volume and less weight and with stronger impact resistant capability, otherwise, passive radio frequency identification chip circuit occurs by hitting Failure, or be connected to the coil of chip and come off or be broken and will cause the key and can not be read and can not open the door.This practicality Novel mechanical key is needed to set lock tooth due to front end, therefore portion of the handle in its back-end can only be selected to encapsulate radio frequency identification marking Sign, and the rear end portion of the handle of mechanical key needs to use injection molding packaging, it is to avoid metal material is used, to prevent the magnetic of coil The line of force is shielded by metal material, influences the digital independent of the RFID tag of encapsulation in it.The encapsulation pair of RFID tag The technical problems such as the impact resistance degree of label, the impact resistance degree of coil, the direction of coil have strict technical requirements.

As shown in Figures 4 and 5, the RFID tag of the end of mechanical key 1 encapsulation described in the utility model is tubulose RFID label tag, the tubulose RFID label tag includes seal pipe 1a, coil 1b, bar magnet 1c and passive radio frequency identification chip 1d tetra- Point, the coil 1b is wound on bar magnet 1c to increase the magnetic flux of coil, two ends and the passive radio frequency identification chip 1d of coil It is welded and fixed, the passive radio frequency identification chip 1d, coil 1b and bar magnet 1c are packaged in seal pipe 1a.During encapsulation, it will seal Pipe 1a longitudinal direction is overlapped toward the rear and front end of key, and seal pipe 1a longitudinal centre line with the center line of key, So that coil 1b magnetic line of force direction is perpendicular to panel 11, it is ensured that induction coil 5 of the coil in lock body.

The RFID tag of encapsulation is low-frequency electronic mark of the working frequency in 125kHz in the utility model mechanical key Label, are passive passive type electronic tag, its work capacity is by way of inductive from lock body end reading device induction coil Radiofrequency field in obtain, passive chip actively sends the response message by encryption under the conditions of radiofrequency field, so as to start encryption The process of certification；Under key management pattern, the reading device built in lock body reliably can be programmed to chip in key Control, sets its key and authorization privilege, and accomplishes that the data of more than 10 years are preserved under passive mode.

Order between tag reader in the RFID tag and lock body of the utility model key end, which is used, to be added Close ciphertext is transmitted, cipher mode using at present in the world the high 3DES encryption algorithm of general level of security (3DES, or Referred to as Triple DES, are the common names of triple DEA block encryptions, and it carries out three using the data key of 3 56 Secondary encryption, it is the equal of, using three des encryption algorithms, to be avoided by increasing DES key length to each data block The attack of Brute Force), or the higher AES encryption algorithm of encryption level (Advanced Encryption Standard, Abbreviation：AES, is also known as Rijndael enciphered methods in cryptography, is a kind of block encryption standard that Federal Government is used). Therefore, even if the extraneous data being truncated between chip and reading device, still can not crack the ciphertext and copy out matching Key.If key loss, user can reset the reading of the RFID tag in reading device and key in lock body Key is write, the key of loss just fails, this potential safety hazard for fundamentally avoiding key loss and existing.

If Fig. 6 and Fig. 7 is respectively utility model works schematic diagram and working circuit diagram.

A further object of the utility model embodiment is to provide a kind of method for unlocking of above-mentioned intelligent door lock, the unlocking Method includes following flow：

(1) mechanical key is inserted into keyhole, touches the contact switch in lock body；

(2) wiring board receives the level triggers signal of contact switch generation, wakes up main control chip in a dormant state, Main control chip then wakes up various peripheral hardwares；

(3) lock core in lock body is matched to the lock tooth of mechanical key, meanwhile, tag reader detection mechanical key On RFID tag, and detection information is sent to main control chip；

(4) main control chip judges whether RFID tag is legal, if not finding RFID label tag or RFID label tag not Authorized included in unlocking in white list, be then determined as that illegally the mechanism in lock body is failure to actuate, keep the lock under non-unlocking condition Fixed structure, lock core can not be opened the door by magnetic valve locking, and LED light display is red；If RFID label tag is contained in unlocking and authorizes white In list, and the lock tooth of lock core and mechanical key matches, then the match is successful for the mechanical key inserted, wiring board drive magnetic valve Energization work, valve element, which is picked up, to be retracted in magnetic valve, is released the locking to lock core, can now be passed through mechanical key rotation lock Core, opens dead bolt, realizes and opens the door, LED light display green；

(5) whether contact switch detection key is extracted, if so, then main control chip and peripheral hardware are transferred to resting state, completes whole Individual unlocking process.

Main control chip described in step (4) judges RFID tag, and whether legal flow is：

1) decision process issues authorized order by the lock core main control chip as reading device end, the radio frequency of key end Label chip is received after authorized order, returns to the unique mark of typical 32 or 48 of radio frequency tag chip storage inside Code, i.e. UID codes, this is the first step；

2) second step is that the lock core main control chip at reading device end combines the UID codes returned by key end, and itself is produced Raw 32 or 48 random numbers, and 32 or the 48 key generations consistent with built in key end radio frequency tag chip Code, by the computing of a nonlinear feedback ring register, the secret key of generation one 32 or 48 is handed down to key again Spoon end radio frequency tag chip, the decrypted authentication computing for the radio frequency tag chip of key end；

3) the 3rd step be key end radio frequency tag chip obtain the secret key of 32 or 48 after, by the solution of itself Close and cryptographic calculation, the secret key that itself is calculated is returned to the lock core main control chip at reading device end, judged by main control chip It is whether legal.

It should be noted that：

1st, the unique identification code (UID) of 32 or 48 of radio frequency tag chip storage inside, and internal storage region The secret cipher key code with same digits long is remained with, the memory block is configured to secret, do not addressed by any communication instruction And the cipher key content of the memory block can be used during reading, only chip therein computing, therefore avoid and set by external The standby possibility for obtaining radio frequency tag chip UID codes；

2nd, encrypting and decrypting computing crucial between reading device end main control chip and radio frequency tag chip is by nonlinear feedback Ring register is implemented, and the different arrangement of the wherein specific feedback tap of feedback ring register represents cipher mode not Together, that is, the difference for the algebraic polynomial that mathematic(al) manipulation is used in encrypting, its basic background knowledge belongs to the category of cryptography, this Place's not expansion narration；

3rd, judge that the random number in computing is different every time, cause the encryption that there is good anti-cracking, and all fortune Used digit, i.e., 32 or 48, it is ensured that all inaccessiable limit privacy degrees of Brute Force, i.e. violence in calculation The time cracked close to the astronomical figure time.

User is during key unlocking is inserted, the Physical Match of mechanical key lock tooth and lock core, and in mechanical key The RFID tag of encapsulation and both reading device cipher key match in lock body synchronously carry out, and Physical Match and cipher key match Process need to complete during lock core has just been inserted from key to final be entirely insertable, be entirely identical to user's one kind existing The usage experience of some standard machinery keys, otherwise, if also needing to the ability normal door that waits for a period of time after key insertion, Such usage experience will substantially reduce the acceptance in market of the present utility model.

Meanwhile, the rfid tag reader in the utility model lock body has preset key higher management function, uses Family voluntarily can be configured by the serial ports of wiring board to main control chip in use, realize management to key, such as Bitting, authorized key, deletion key etc., or the service condition of key is reviewed, key authority is managed With configuration etc..Therefore, there is the key of certain potential safety hazard using mistake for such as nurse, lessee, upfitter etc., either, If meeting the situation of key loss, user just can directly by operating the reading device come the key that cancels, so, this practicality The potential safety hazard that new intelligent door lock fundamentally avoids key loss and existed.

The utility model flow process chart is illustrated in figure 8, the utility model provides a kind of based on RFID tag The key pair of encryption and the physical arrangement of mechanical key match to carry out the intelligent door lock of dual safety certification protection, Yong Hu With existing common door lock entirely without different in usage experience, but it is better than in terms of security, property easy to use in door lock Present standard machinery door lock and various intelligent door locks.Also, whole lock body is physically still same as existing lock Body, therefore the lock body directly can be replaced to existing lock body, without being modified to doorframe structure, reduce market accurate Enter threshold.As to further upgrading of the present utility model, intelligent door lock of the present utility model can also add in background system Enter such as acousto-optic-electric warning device, or send warning information to the information transmitting apparatus of user terminal, then either by itself and family Middle other intelligent home devices realize interconnection, further to lift its practical function.

Claims (8)

1. based on passive radio-frequency identification labeled intelligent door lock, including mechanical key and lock body two parts, the mechanical key The RFID tag that end encapsulation is made up of passive radio frequency identification chip and coil, the lock body includes tapered end and is plugged in lock The jack that mechanical key is provided with the reading device of label, lock core is provided with lock core in head, tapered end, it is characterised in that described Reading device includes wiring board (4), induction coil (5) and the battery (9) being arranged in tapered end (2), the induction coil (5) Wiring board (4) is respectively electrically connected to battery (9), the RFID tag for recognizing mechanical key tip, tapered end (2) bottom Provided with through hole, lock core (3) is plugged in the through hole of tapered end (2) bottom and can rotated in through hole, is opened up inside the tapered end (2) There is electromagnetism valve opening (21), be fixed with magnetic valve (6) in it, the magnetic valve (6) is electrically connected to wiring board (4), the lock core (3) Top offers the spool bore (31) corresponding with the electromagnetism valve opening (21) so that the magnetic valve (6) is in non-unlocking condition Under, valve element (61) is naturally fallen in spool bore (31) under gravity, and valve element (61) upper end is located in the magnetic valve (6), And lower end is located in the spool bore (31), the lock core (3) is locked, and after the match is successful for the mechanical key of insertion, valve Core (61) can be all retracted in magnetic valve (6), and the lock core (3) is unlocked.

2. intelligent door lock according to claim 1, it is characterised in that the lock body leading section is provided with panel (11), described Panel (11) is with lock body into vertical stratification, and panel (11) is provided with the keyhole (12) corresponding with the lock core (3), is used as machinery The insert port of key.

3. intelligent door lock according to claim 2, it is characterised in that opened in the panel (11) provided with least one contact Close in passage, passage and be fixed with spring (71), the front end of spring is fixed with the contact switch (7) for being connected to wiring board, described Contact switch (7) is located between keyhole (12) and lock core (3), and can be by contact switch when insertion key in keyhole (12) (7) in push-in contact switch passage, the insert state for detecting key, and start or close tag reader.

4. intelligent door lock according to claim 2, it is characterised in that lead in the panel (11) provided with two groups of contact switch Road, two groups of contact switch passages are symmetrical arranged centered on keyhole (12), fix spring in two groups of contact switch passages respectively (71), the front end of spring is fixed with the contact switch (7) for being connected to wiring board, and two groups of contact switch are without key insert state Under contact with each other between keyhole (12) and lock core (3), and can be by each contact switch during insertion key in the keyhole (12) Separation, the insert state for detecting key, and start or close tag reader.

5. intelligent door lock according to claim 2, it is characterised in that panel (11) rear portion is provided with panel bonnet (13), the panel bonnet (13) be fastened on panel (11) and with panel formation sealing cavity body, wiring board (4), Contact switch (7) and spring (71) are both secured on the panel bonnet (13), and positioned at panel bonnet (13) and panel (11) In the cavity body of formation, panel bonnet (13) is provided with the keyhole corresponding with keyhole (12)；Induction coil (5) is located at face Plate bonnet (13) back, and collar is around in lock core (3) outside centered on the lock core (3).

6. according to any described intelligent door locks of claim 2-5, it is characterised in that panel (11) surface is fixed with least One LED light (8), the LED light (8) is electrically connected to the working condition that wiring board (4) is used to indicate door lock.

7. intelligent door lock according to claim 1, it is characterised in that the radio frequency of mechanical key (1) the end encapsulation is known Distinguishing label is tubulose RFID label tag, and the longitudinal direction of tubulose RFID label tag is toward the rear and front end of key, and longitudinal centre line Overlapped with the center line of key.

8. intelligent door lock according to claim 7, it is characterised in that the tubulose RFID label tag include seal pipe (1a), Coil (1b), bar magnet (1c) and the part of passive radio frequency identification chip (1d) four, the coil (1b) are wound on bar magnet (1c) To increase the magnetic flux of coil, two ends and the passive radio frequency identification chip (1d) of coil are welded and fixed, the passive radio frequency identification Chip (1d), coil (1b) and bar magnet (1c) are packaged in seal pipe (1a).