CN210439811U - Key-inserting type intelligent lock and key matched with same - Google Patents

Abstract

The utility model relates to a key-inserting type intelligent lock and a key adapted with the key-inserting type intelligent lock, which comprises a lock shell, a pulling mop, a rotating shaft, a lock liner and an intelligent key, wherein an electric clutch cavity is arranged in the rotating shaft, a turnkey and an electric clutch device which can drive the turnkey to be linked or separated with the lock liner in a joint way are arranged in the electric clutch cavity, and the electric clutch device is electrically connected with a control device; the intelligent key is provided with a holding part and an unlocking part, a first encryption chip is arranged in the holding part, a key circuit board electrically connected with the first encryption chip is arranged on the unlocking part, a key contact is arranged on the key circuit board, conductive balls are arranged in the lock shell and the lock liner, the control device is provided with an encryption authentication circuit for carrying out key verification with the first encryption chip, the control device controls the electric clutch device to drive the rotary key to be in joint linkage with the lock liner after the key verification is passed, and the intelligent key can be unlocked by twisting the intelligent key; the mode of double combination of mechanical verification and password verification is adopted, the lock can be unlocked only if the key and the password are successfully paired, and the safety performance is high.

Description

Key-inserting type intelligent lock and key matched with same

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of locks, in particular to a key-inserting type intelligent lock cylinder and a key matched with the same.

[ background of the invention ]

The intelligent lock in the prior art generally adopts single-type verification such as intelligent key mechanical verification, fingerprint verification, card swiping verification and password verification, lawless persons only need to destroy one of the verification modes to unlock, and the safety performance is low.

In addition, the transmission device (electric clutch device) of the existing electronic lock is mostly realized by a motor and a transmission mechanism, in order to convert the rotation action of the motor into the action of unlocking and left-right movement of unlocking, a complex transmission mechanism is needed to realize, and the time of positive and negative rotation of the motor needs to be accurately controlled, otherwise, the transmission mechanism is easily damaged; because it is difficult to precisely control the forward and reverse rotation time of the motor, if the screw transmission is adopted, the transmission is easy to be over-positioned to form idle rotation, and some double-spring electronic locks capable of solving the above problems appear in the prior art, such as chinese patent publication No. CN83790443B, the name of the invention is: a motor transmission device for an electronic lock adopts the technical scheme that: the positive and negative rotation motor is fixed in the installation cavity of the motor shell; one end of the rotating tooth shaft is fixedly connected with an output shaft of the forward and reverse rotating motor to realize linkage; the outer diameter of the rotary tooth sleeve is smaller than the diameter of an extending opening of the motor shell, and the rotary tooth sleeve is sleeved on the rotary tooth shaft through the through hole so that a first thread on the rotary tooth shaft is meshed with a second thread in the rotary tooth sleeve; the inner rotary tooth spring is sleeved on the rotary tooth shaft, and two ends of the inner rotary tooth spring are positioned between the forward and reverse rotation motor and the rotary tooth sleeve; the outer rotary tooth spring is sleeved on the rotary tooth sleeve, and two ends of the outer rotary tooth spring are positioned between the rotary tooth sleeve and the inner wall of the motor shell; the inner rotary tooth spring is compressed and then reacts on the rotary tooth sleeve, so that the second thread of the rotary tooth sleeve is reversely meshed with the first thread on the rotary tooth shaft, once the motor rotates reversely, the rotary tooth sleeve immediately extends outwards in a thread transmission mode and cannot idle, and similarly, when the locking mechanism is locked, the outer rotary tooth spring is compressed and then reacts on the rotary tooth sleeve, so that the second thread of the rotary tooth sleeve is reversely meshed with the first thread on the rotary tooth shaft, and once the motor rotates reversely, the rotary tooth sleeve immediately extends inwards in a thread transmission mode and cannot idle. Although this technical scheme just has solved the easy difficult problem that forms idle running of traditional screw rod and swivel nut through increasing two springs for the electronic lock need not too the time of accurate control motor just reversing, but it has following technical problem:

1. the first thread and the second thread are always meshed in the reverse direction, so that the rotary tooth shaft always drives the rotary tooth sleeve to rotate together no matter the motor rotates forwards or backwards; however, when the rotary tooth sleeve and other mechanisms in the lock are mechanically locked, the problems of relative idle running and thread sliding between the first thread and the second thread and the like can be caused, and the transmission device can be damaged and failed in serious cases;

2. an annular flange extends outwards from the inner end face of the rotary tooth sleeve, an outer rotary tooth spring is sleeved on the rotary tooth sleeve, and two ends of the outer rotary tooth spring are positioned between the annular flange and the inner end face of an extension opening of the motor shell; the processing technology of this structure is comparatively complicated, and changes the interior terminal surface of tooth sleeve and outwards extend and have annular flange, leads to changeing the telescopic size grow of tooth, can't satisfy small-size tool to lock's requirement.

3. The specification of this patent does not describe any practical application of the transmission device, which is complicated for a person skilled in the art, in particular, the motor housing is formed by the upper housing and the lower housing which are connected by a snap connection, and the transmission device cannot be widely used in all locks, in particular, in electronic locks using a pin lock housing or a blade lock housing.

Therefore, the invention provides an intelligent lock with a high-security-level double-authentication mode, which can solve the above problems.

[ summary of the invention ]

In order to solve the problems, the invention provides a high-security-level double-security key-inserting type intelligent lock and an adaptive intelligent key thereof.

In order to achieve the purpose, the invention provides the following technical scheme:

a key-inserting type intelligent lock comprises a lock shell, a pulling mop arranged in an open slot in the middle of the lock shell, a rotating shaft and a lock liner arranged in the lock shell positioned at two sides of the pulling mop, wherein the rotating shaft and the pulling mop are linked, an electric clutch cavity with an opening facing the pulling mop is arranged in the rotating shaft, a turnkey linked with the rotating shaft and the pulling mop is arranged in the electric clutch cavity, and an electric clutch device capable of driving the turnkey to move along the axial direction and linked or separated with the lock liner in a joint way is electrically connected with a control device, the key-inserting type intelligent lock further comprises an intelligent key, the lock liner is provided with a key hole matched with the intelligent key, the intelligent key is provided with a holding part and an unlocking part, a first encryption chip is arranged in the holding part, and a key circuit board electrically connected with the first encryption chip is arranged on the unlocking part, the key circuit board is provided with a key contact, the lock shell and the lock liner are internally provided with a conductive marble of which one end is used for being in electrical contact with the key contact, the other end of the conductive marble is electrically connected with the control device, the control device is provided with an encryption authentication circuit for carrying out key verification with the first encryption chip, and after the key verification is passed, the control device controls the electric clutch device to drive the rotary key to be in linkage with the lock liner in a joint way, so that the intelligent key can be unlocked by twisting.

As a preferred embodiment, further defined is: the lock comprises a lock shell and a lock liner, and is characterized in that the lock opening part is also provided with teeth, marble holes are also formed in the lock shell and the lock liner, and marble components matched with the teeth are arranged in the marble holes.

As a preferred embodiment, further defined is: the control device comprises a main control chip, a power circuit electrically connected with a power input end of the main control chip, an encryption authentication circuit electrically connected with a signal input end of the main control chip, and a motor driving circuit electrically connected with a driving output end of the main control chip, wherein the power circuit is electrically connected with a battery, the encryption authentication circuit is electrically connected with the conductive marble, and the motor driving circuit is electrically connected with the electric clutch device.

As a preferred embodiment, further defined is: a transmission cavity is arranged in the rotary key, the electric clutch device comprises a transmission motor electrically connected with the motor driving circuit, an output shaft of the transmission motor is connected with a worm extending into the transmission cavity, a nut capable of being in threaded connection with the worm is sleeved on the worm, and the worm can drive the nut to axially move relative to the rotary key; the worm is further sleeved with a first return spring and a second return spring which are respectively positioned on two sides of the screw cap, the screw cap compresses the first return spring when the transmission motor drives the worm to rotate forwards or reversely, and the first return spring pushes the rotary key to move axially along a rotating shaft of the worm to be in joint linkage with the lock cylinder; when the transmission motor drives the worm to rotate reversely or positively, the nut compresses the second return spring, and the second return spring pushes the rotary key to axially move along the rotating shaft of the worm to be separated from the lock cylinder.

As a preferred embodiment, further defined is: the transmission cavity is internally provided with a positioning groove, the outer side of the nut is convexly provided with a positioning part matched with the positioning groove, and the positioning part slides along the positioning groove when the nut moves along the axial direction of the rotating shaft of the worm.

One end of the first return spring is abutted against the cavity bottom of the transmission cavity, and the other end of the first return spring is abutted against the screw cap; and a return spring baffle through which the worm can penetrate is arranged at the cavity opening of the transmission cavity, one end of the second return spring is abutted against the return spring baffle, and the other end of the second return spring is abutted against the nut.

As a preferred embodiment, further defined is: the drive motor is preferably a coreless motor.

As a preferred embodiment, further defined is: one side of the lock cylinder close to the pulling mop is provided with a positioning pin hole communicated with the key hole, and a lock cylinder positioning pin is arranged in the positioning pin hole.

As a preferred embodiment, further defined is: the lock shell is provided with first contact hole, the lock courage be provided with first contact hole assorted second contact hole, electrically conductive pellet shot from a slingshot is including setting up downthehole lock shell contact of first contact and suit are in lock shell contact cover outside the lock shell contact, and set up the second contact downthehole with lock shell contact assorted lock courage contact and suit are in lock courage contact cover outside the lock courage contact.

As a preferred embodiment, further defined is: the middle part of the pulling mop is provided with a through hole, the middle part of the pulling mop protrudes inwards to form an annular clamping edge, so that one end of the pulling mop is provided with a first rotating groove into which the front end of the rotating shaft can be inserted, and the other end of the pulling mop is provided with a second rotating groove into which the front end of the lock cylinder can be inserted; a first inserting key protruding inwards is arranged in the first rotating groove, and a first inserting groove matched with the first inserting key is arranged at the front end of the rotating shaft; the front end of axis of rotation still is provided with the second slot, the side evagination of commentaries on classics key be formed with second slot assorted second inserted key, annular card limit has can supply second inserted key male breach, the front end of lock courage is provided with can supply second inserted key male third slot.

As a preferred embodiment, further defined is: the rear end of the rotating shaft protrudes outwards to form a fixing part extending out of the lock shell, a knob is sleeved on the fixing part, and the control device is arranged in the knob; when the knob is twisted, the rotating shaft drives the poking and pulling piece to rotate and unlock through the rotating key.

As a preferred embodiment, further defined is: the lock shell is radially provided with a mounting hole for mounting the rotating shaft and the lock cylinder, one end of the rotating shaft, facing the pull rod, is radially provided with a first annular groove, a first dielectric member with the outer diameter larger than the aperture of the mounting hole is arranged in the first annular groove, and the first dielectric member is clamped between the lock shell and the pull rod after assembly; the lock core is towards the one end that the group dragged is radially provided with the second ring channel, be provided with the external diameter in the second ring channel and be greater than the second medium spare in mounting hole aperture, after the assembly the second medium spare is held lock shell with dial between dragging.

The key of the key-inserting type intelligent lock comprises an intelligent key, wherein the intelligent key is provided with a holding part and an unlocking part, the unlocking part is provided with teeth, and the key is characterized in that a first encryption chip is arranged in the holding part, and a key circuit board electrically connected with the first encryption chip is arranged on the unlocking part.

The beneficial effects of the invention are as follows: the invention adopts a mode of double combination of mechanical verification and password verification, so that the safety performance is greatly improved, a first encryption chip is arranged in a holding part of the intelligent key, a key circuit board is arranged on an unlocking part of the intelligent key, a key contact electrically connected with the first encryption chip is arranged on the key circuit board, after the key is inserted, a control device reads data of the first encryption chip to carry out key verification, after the key verification is passed, the control device controls an electric clutch device to drive a rotating key to be in joint linkage with a lock liner, the intelligent key can be unlocked by twisting, so that double-guarantee unlocking is realized, and the safety performance is high;

in addition, the invention drives the nut to axially move in the worm through the transmission motor, so that the nut can push the rotary key to be jointed with or separated from the lock cylinder by means of the elasticity of the first return spring or the second return spring, and the structure is simple. First return spring or second return spring can play the cushioning effect when the mechanical card is dead in the appearance of turnkey and lock courage, prevent to appear idle relatively smooth silk scheduling problem between nut and the worm, and design benefit effectively improves electric clutch's life. In addition, the first return spring and the second return spring can enable the nut to be meshed with the worm, and the working stability is improved.

[ description of the drawings ]

FIG. 1 is a schematic structural diagram of the invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural diagram of a smart key;

FIG. 4 is an exploded schematic view of the fob;

FIG. 5 is a cross-sectional view of the unlocked state;

FIG. 6 is a cross-sectional view of the latched state;

FIG. 7 is an exploded schematic view of the electric clutch assembly;

FIG. 8 is one of the schematic structural diagrams of the dial and drag;

FIG. 9 is a second schematic diagram of the structure of the pull-drag;

FIG. 10 is a schematic view of the structure of a rotating shaft;

FIG. 11 is a schematic structural view of the cylinder;

FIG. 12 is a schematic structural view of a rotary key;

FIG. 13 is a schematic block diagram of the circuit of the present invention;

FIG. 14 is a partial circuit diagram of the control circuit;

fig. 15 is a circuit diagram of an encryption authentication circuit;

fig. 16 is a circuit diagram of a motor drive circuit;

fig. 17 is a circuit diagram of a buzzer circuit;

fig. 18 is a circuit diagram of a memory circuit.

[ detailed description ] embodiments

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in the attached drawings 1 to 7, a key-inserting type intelligent lock comprises a lock shell 1, a pulling mop 3 arranged in an open slot at the middle part of the lock shell 1, and a rotating shaft 4 and a lock cylinder 5 arranged in the lock shell 1 at two sides of the pulling mop 3, wherein the rotating shaft 4 is linked with the pulling mop 3, an electric clutch cavity 45 with an opening facing the pulling mop 3 is arranged in the rotating shaft 4, a rotary key 6 linked with the rotating shaft 4 and linked with the pulling mop 3 is arranged in the electric clutch cavity 45, and an electric clutch device 7 capable of driving the rotary key 6 to move along the axial direction thereof to be connected with or separated from a lock cylinder 5, the electric clutch device 7 is electrically connected with a control device 8, the key-inserting type intelligent lock further comprises an intelligent key 2, the lock cylinder 5 is provided with a key hole 51 adapted to the intelligent key 2, as shown in the attached drawings 3 and 4, the intelligent key 2 is provided with a holding part 21 and an unlocking part 22, a first encryption chip 23 is arranged in the holding part 21, the first encryption chip 23 adopts a first encryption chip with model number of ATSHA204A of Microchip company, has encryption IC with rich functions, uses SHA-256 algorithm to carry out encryption operation, is internally provided with a slot with 16 bytes and 32 bytes to store user data and a key, has a unique serial number of 9 bytes to distinguish other chips, and is provided with an OTP area (dynamic password) with 512bits to store some fixed information, thereby having extremely high security. The unlocking part 22 is provided with a key circuit board 24 electrically connected with the first encryption chip 23, the key circuit board 24 is provided with a key contact 26, the lock shell 1 and the lock liner 5 are internally provided with a conductive marble 85, one end of the conductive marble 85 is electrically connected with the key contact 26, the other end of the conductive marble 85 is electrically connected with the control device 8, and the key circuit board 24 is in passive design by adopting a metal contact mode to communicate with the control device 8. The control device 8 is provided with an encryption authentication circuit 83 for carrying out key verification with the first encryption chip 23, after the key verification is passed, the control device 8 controls the electric clutch device 7 to drive the rotary key 6 to be connected and linked with the lock cylinder 5, and the intelligent key 2 can be unlocked by twisting. The invention adopts a mode of combining mechanical verification and password verification, can unlock only if the key and the password are successfully paired, realizes double-guarantee unlocking and has high safety performance.

The unlocking part 22 is further provided with teeth 25, marble holes are further formed in the lock shell 1 and the lock liner 5, marble components 52 matched with the teeth 25 to achieve a mechanical unlocking verification function are arranged in the marble holes, and the marble components 52 are common technical means of lock cylinders in the prior art and are matched with conventional keys to achieve mechanical unlocking verification.

Furthermore, the control device 8 includes a main control chip 81, a power circuit 82 electrically connected to a power input terminal of the main control chip 81, an encryption authentication circuit 83 electrically connected to a signal input terminal of the main control chip 81, and a motor driving circuit 84 electrically connected to a driving output terminal of the main control chip 81, wherein the power circuit 82 is electrically connected to the battery 9, the encryption authentication circuit 83 is electrically connected to the conductive pin 85, and the motor driving circuit 84 is electrically connected to the electric clutch device 7. The motor driving circuit 84 is preferably a driving chip with the model number of SGM 42507. The control circuit 8 further comprises a memory circuit 86 for storing data and a buzzer circuit 87 for emitting an alarm sound. The main control chip 81 is an nRF52832 series chip, more preferably an nRF52832-QFAA chip, can support NFC-a, can be used as a Tag (Tag), can be used for near-distance security connection in cooperation with a smart phone, and avoids complicated connection establishing processes such as password input. In this embodiment, the main control chip 81 has an ultra-low peak value and low power consumption, and after the power-on start, the ID of the main control chip 81 is read and sent to the second encryption chip to start the self-checking software algorithm, so as to determine whether the main control chip 81 and the second encryption chip have verification of being modified or tampered.

And if the self-checking is successful, inserting a configuration key for configuration, and simultaneously starting low-power-consumption BLE broadcasting and entering a dormant state. When a key is inserted into the lock liner 5, the main control chip 81 starts to read the unique ID of the first encryption chip 23, transmits the ID to the second encryption chip, executes SHA256 algorithm operation by the second encryption chip to obtain a ciphertext, sends the ciphertext to the first encryption chip 23 for operation, and finally feeds the ciphertext back to the first encryption chip 23, and if the bidirectional verification is passed, the verification is successful. The motor driving circuit 84 drives the transmission motor 71 to rotate to enter an unlocking state, and a short prompt is sent out through a buzzer. And if the verification fails, sending continuous multiple-time alarm reminding through the buzzer, and stopping the verification action. The unique ID of the first encryption chip 23 is preset in the production process of the manufacturer, and has uniqueness and high safety.

Except for the checking action, if the main control chip 81 receives a Bluetooth data message sent by the mobile phone App terminal, the safety authorization authentication is started. If the authorization authentication is successful, the operation is performed by a legal administrator, and the key and the unlocking record of the lock cylinder can be accessed and configured.

In order to improve the working stability of the electric clutch device 7, as shown in fig. 7, a transmission cavity 61 is arranged in the rotary key 6, the electric clutch device 7 comprises a transmission motor 71 electrically connected with the motor driving circuit 84, and the transmission motor 71 is preferably a hollow cup motor, has extremely fast response and is suitable for being applied to an electronic lock cylinder. An output shaft of the transmission motor 71 is connected with a worm 72 extending into the transmission cavity 61, a nut 73 capable of being in threaded connection with the worm 72 is sleeved on the worm 72, and the worm 72 can drive the nut 73 to move axially relative to the rotary key 6; the worm 72 is further sleeved with a first return spring 74 and a second return spring 75 which are respectively positioned at two sides of the screw cap 73, when the transmission motor 71 drives the worm 72 to rotate forwards or backwards, the screw cap 73 compresses the first return spring 74, and the first return spring 74 pushes the rotary key 6 to move axially along the rotating shaft of the worm 72 to be jointed and linked with the lock cylinder 5; when the transmission motor 71 drives the worm 72 to rotate reversely or forwardly, the nut 73 compresses the second return spring 75, and the second return spring 75 pushes the rotary key 6 to move axially along the rotating shaft of the worm 72 to be separated from the lock cylinder 5, so that the structure is simple.

When the transmission motor 71 drives the worm 72 to rotate and the rotary key 6 is mechanically locked with the lock cylinder 5, the nut 73 axially moves along the rotating shaft of the worm 72 and compresses the first return spring 74 or the second return spring 75; after the mechanical jamming disappears, the first return spring 74 or the second return spring 75 pushes the rotary key 6 to move axially along the rotating shaft of the worm 72, so that the rotary key 6 is jointed with or separated from the lock cylinder 5. The first return spring 74 or the second return spring 75 can play a role in buffering when the rotary key 6 and the lock cylinder 5 are mechanically clamped, so that the problems of relative idle rotation and thread sliding between the nut 73 and the worm 72 and the like are solved, the design is ingenious, and the service life of the electric clutch device is effectively prolonged. In addition, the first return spring 74 or the second return spring 75 can urge the nut 73 to keep meshed with the worm 72, and the stability of the electric clutch device is improved.

In this embodiment, a positioning groove 62 is formed in the transmission chamber 61, a positioning portion 76 corresponding to the positioning groove 62 is formed on the outer side of the nut 73 in a protruding manner, and the positioning portion 76 slides along the positioning groove 62 when the nut 73 moves along the axial direction of the rotation shaft of the worm 72. The engagement of the detent 76 with the detent 62 causes the nut 73 to move only axially along the axis of rotation of the worm 72, but not to rotate circumferentially, thereby limiting the position of the nut 73.

In this embodiment, one end of the first return spring 74 abuts against the bottom of the transmission cavity 61, and the other end abuts against the nut 73; the stroke of the first return spring 74 compressed when the rotary key 6 is linked with the lock core 5 is the stroke of the nut 73 moving, and the first return spring 74 can push one side of the nut 73 to keep engaged with the worm 72. The opening of the transmission cavity 61 is provided with a return spring baffle 77 through which the worm 72 can penetrate, one end of the second return spring 75 abuts against the return spring baffle 77, and the other end of the second return spring abuts against the nut 73. The stroke of the second return spring 75 compressed when the rotary key 6 is separated from the cylinder core 5 is the stroke of the nut 73 moving, and the second return spring 75 can push the other side of the nut 73 to keep engaged with the worm 72.

In this embodiment, a positioning pin hole 53 penetrating through the key hole 51 is formed in a side of the cylinder 5 close to the pull tab 3, and a cylinder positioning pin 54 is provided in the positioning pin hole 53. The lock cylinder positioning pin 54 not only can play a role in positioning and fixing, but also can prevent a lawless person from drilling the electric clutch device after clamping the lock cylinder, and effectively improves the safety of the electronic lock cylinder.

In this embodiment, the lock case 1 is provided with first contact hole 11, the lock core 5 be provided with first contact hole 11 assorted second contact hole 56, electrically conductive pellet shot from a slingshot 85 is including setting up lock case contact 12 and the suit in first contact hole 11 lock case contact 12 outer lock case contact cover 13 of lock case contact 12, and set up and be in second contact hole 56 with lock case contact 12 assorted lock core contact 57 and suit are in lock core contact 57 outer lock core contact 58. More specifically, the key circuit board 24 is provided with three key contacts 26, which form a power supply positive, a power supply negative and a power supply ground, the lower end of the cylinder core contact 57 is electrically connected with the key contact 26, the upper end of the cylinder core contact 57 is electrically connected with the lower end of the lock case contact 12, and the upper end of the lock case contact 12 is electrically connected with the encryption authentication circuit 83.

In this embodiment, as shown in fig. 8 to 12, a through hole 31 is formed in the middle of the dial 3, and an annular clamping edge 32 is formed in the middle of the dial 3 in an inward protruding manner, so that a first rotating groove 33 into which the front end of the rotating shaft 4 can be inserted is formed at one end of the dial 3, and a second rotating groove 34 into which the front end of the lock cylinder 5 can be inserted is formed at the other end of the dial 3; the first rotating groove 33 is internally provided with a first inserting key 35 protruding inwards, the front end of the rotating shaft 4 is provided with a first inserting groove 41 matched with the first inserting key 35, and after assembly, linkage of the rotating shaft 4 and the pulling and dragging 3 can be achieved. The front end of axis of rotation 4 still is provided with second slot 42, the side evagination of feather key 6 be formed with second slot 42 assorted second inserted key 63, annular card limit 32 has the confession second inserted key 63 male breach 36, the front end of lock courage 5 is provided with the confession second inserted key 63 male third slot 55, after the assembly, can realize feather key 6 and axis of rotation 4, feather key 6 and dial and drag 3 and feather key 6 and lock courage 5's linkage.

In this embodiment, the rear end of the rotating shaft 4 is convexly formed with a fixing portion 43 extending out of the lock case 1, the fixing portion 43 is sleeved with a knob 10, and the control device 8 is disposed in the knob 10; when the knob 10 is twisted, the rotating shaft 4 is driven by the rotating key 6 to pull the pull rod 3 to rotate for unlocking, the structure is simple, and indoor unlocking is realized.

In this embodiment, the lock case 1 is provided with a mounting hole for mounting the rotating shaft 4 and the lock cylinder 5 in a radial direction, one end of the rotating shaft 4 facing the dial 3 is provided with a first annular groove 44 in a radial direction, the first annular groove 44 is provided with a first dielectric member 14 with an outer diameter larger than the aperture of the mounting hole, and the first dielectric member 14 is clamped between the lock case 1 and the dial 3 after assembly; the lock core 5 is towards the one end that the group dragged 3 is radially provided with second annular groove 59, be provided with the external diameter in the second annular groove 59 and be greater than the second is situated between the lock shell 1 with group drags 3 between the second is situated between the hole diameter, the second is situated between 15 is held in the lock shell after the assembly, first is situated between 14 and the second is situated between 15 and plays fixed and spacing effect to axis of rotation 4 and lock core 5 respectively, prevents axial displacement.

A key of a key-inserting type intelligent lock is shown in figures 2 and 3 and comprises an intelligent key 2, wherein the intelligent key 2 is provided with a holding part 21 and an unlocking part 22, the unlocking part 22 is provided with teeth 25, and mechanical unlocking verification can be achieved by matching with a marble component 52 in the prior art. The intelligent lock is characterized in that a first encryption chip 23 is arranged in the holding part 21, a key circuit board 24 electrically connected with the first encryption chip 23 is arranged on the unlocking part 22, three metal contacts are arranged on the key circuit board 24, a power supply positive electrode, a power supply negative electrode and a power supply ground can be formed, the intelligent lock can be connected with the control device 8 of the intelligent lock to realize key verification, the intelligent degree is high, a double verification mode is realized, and the safety performance is high.

Claims (13)

1. A key-inserting type intelligent lock comprises a lock shell (1), a pulling mop (3) arranged in an open slot at the middle part of the lock shell (1), a rotating shaft (4) and a lock cylinder (5) arranged in the lock shell (1) at two sides of the pulling mop (3), wherein the rotating shaft (4) is linked with the pulling mop (3), an electric clutch cavity (45) with an opening facing the pulling mop (3) is arranged in the rotating shaft (4), a rotary key (6) which is linked with the rotating shaft (4) and linked with the pulling mop (3) is arranged in the electric clutch cavity (45), and an electric clutch device (7) which can drive the rotary key (6) to move along the axial direction and is linked or separated with the lock cylinder (5) in a joint way, the electric clutch device (7) is electrically connected with a control device (8), the key-inserting type intelligent lock is characterized by further comprising an intelligent key (2), and the lock cylinder (5) is provided with a key hole (51) adapted to the intelligent key (2), the intelligent key (2) is provided with a holding part (21) and an unlocking part (22), a first encryption chip (23) is arranged in the holding part (21), a key circuit board (24) electrically connected with the first encryption chip (23) is arranged on the unlocking part (22), a key contact (26) is arranged on the key circuit board (24), a conductive marble (85) with one end used for being in electric contact with the key contact (26) is arranged in the lock shell (1) and the lock liner (5), the other end of the conductive marble (85) is electrically connected with the control device (8), the control device (8) is provided with an encryption authentication circuit (83) for carrying out key verification with the first encryption chip (23), and after the key verification is passed, the control device (8) controls the electric clutch device (7) to drive the rotary key (6) to be in joint linkage with the lock liner (5), the lock can be unlocked by twisting the intelligent key (2).

2. The key-inserting type intelligent lock according to claim 1, characterized in that the unlocking part (22) is further provided with teeth (25), the lock shell (1) and the lock cylinder (5) are further provided with ball holes, and the ball holes are internally provided with ball assemblies (52) matched with the teeth (25).

3. The key-inserting type intelligent lock according to claim 2, wherein the control device (8) comprises a main control chip (81), a power circuit (82) electrically connected with a power input end of the main control chip (81), the encryption authentication circuit (83) electrically connected with a signal input end of the main control chip (81), and a motor driving circuit (84) electrically connected with a driving output end of the main control chip (81), the power circuit (82) is electrically connected with a battery (9), the encryption authentication circuit (83) is electrically connected with the conductive pin (85), and the motor driving circuit (84) is electrically connected with the electric clutch device (7).

4. The key-inserting type intelligent lock according to claim 3, characterized in that a transmission cavity (61) is arranged in the rotary key (6), the electric clutch device (7) comprises a transmission motor (71) electrically connected with the motor driving circuit (84), an output shaft of the transmission motor (71) is connected with a worm (72) extending into the transmission cavity (61), the worm (72) is sleeved with a nut (73) capable of being in threaded connection with the worm, and the worm (72) can drive the nut (73) to axially move relative to the rotary key (6); the worm (72) is further sleeved with a first return spring (74) and a second return spring (75) which are respectively positioned on two sides of the screw cap (73), when the transmission motor (71) drives the worm (72) to rotate forwards or backwards, the screw cap (73) compresses the first return spring (74), and the first return spring (74) pushes the rotary key (6) to move axially along the rotating shaft of the worm (72) to be jointed and linked with the lock cylinder (5); when the transmission motor (71) drives the worm (72) to rotate reversely or positively, the screw cap (73) compresses the second return spring (75), and the second return spring (75) pushes the rotary key (6) to axially move along the rotating shaft of the worm (72) to be separated from the lock cylinder (5).

5. A key-inserting smart lock according to claim 4, characterized in that a positioning slot (62) is provided in the transmission chamber (61), a positioning portion (76) corresponding to the positioning slot (62) is convexly formed on the outer side of the nut (73), and the positioning portion (76) slides along the positioning slot (62) when the nut (73) moves axially along the rotation axis of the worm (72).

6. A key-inserting smart lock according to claim 4, characterized in that one end of the first return spring (74) abuts against the cavity bottom of the transmission cavity (61) and the other end abuts against the nut (73); the mouth of a cavity of the transmission cavity (61) is provided with a return spring baffle (77) which can be penetrated by the worm (72), one end of the second return spring (75) is abutted against the return spring baffle (77), and the other end of the second return spring is abutted against the nut (73).

7. A keyed smart lock according to claim 4, characterised in that the drive motor (71) is preferably a coreless motor.

8. The key-inserting type intelligent lock according to claim 4, wherein a positioning pin hole (53) communicated with the key hole (51) is formed in one side, close to the pulling piece (3), of the lock cylinder (5), and a lock cylinder positioning pin (54) is arranged in the positioning pin hole (53).

9. A key-inserting smart lock according to claim 4, characterized in that the lock case (1) is provided with a first contact hole (11), the lock cylinder (5) is provided with a second contact hole (56) matching with the first contact hole (11), the conductive pin (85) comprises a lock case contact (12) arranged in the first contact hole (11) and a lock case contact sleeve (13) sleeved outside the lock case contact (12), and a lock cylinder contact (57) arranged in the second contact hole (56) matching with the lock case contact (12) and a lock cylinder contact sleeve (58) sleeved outside the lock cylinder contact (57).

10. The key-inserting type smart lock according to any one of claims 2 to 9, wherein the middle part of the pulling lug (3) is provided with a through hole (31), the middle part of the pulling lug (3) protrudes inwards to form an annular clamping edge (32), so that a first rotating groove (33) into which the front end of the rotating shaft (4) can be inserted is formed at one end of the pulling lug (3), and a second rotating groove (34) into which the front end of the lock cylinder (5) can be inserted is formed at the other end of the pulling lug; a first inserting key (35) protruding inwards is arranged in the first rotating groove (33), and a first inserting groove (41) matched with the first inserting key (35) is arranged at the front end of the rotating shaft (4); the front end of axis of rotation (4) still is provided with second slot (42), the side evagination of commentaries on classics key (6) be formed with second slot (42) assorted second is inserted key (63), annular card limit (32) have and supply second is inserted key (63) male breach (36), the front end of lock courage (5) is provided with and supplies second is inserted key (63) male third slot (55).

11. A key-inserting type smart lock as claimed in any one of claims 2-9, wherein the rear end of the rotary shaft (4) is formed with a fixing portion (43) protruding out of the lock case (1), the fixing portion (43) is sleeved with a knob (10), and the control device (8) is disposed in the knob (10); when the knob (10) is twisted, the rotating shaft (4) drives the pulling mop (3) to rotate and unlock through the rotating key (6).

12. A key-inserting smart lock according to any one of claims 2-9, characterized in that the lock housing (1) is provided with a radial mounting hole for mounting the rotating shaft (4) and the lock cylinder (5), one end of the rotating shaft (4) facing the pull rod (3) is provided with a radial first annular groove (44), the first annular groove (44) is provided with a first dielectric member (14) having an outer diameter larger than the aperture of the mounting hole, and the first dielectric member (14) is clamped between the lock housing (1) and the pull rod (3) after assembly; the lock core (5) is provided with a second annular groove (59) towards one end of the pulling-dragging part (3) in the radial direction, a second medium part (15) with the outer diameter larger than the aperture of the mounting hole is arranged in the second annular groove (59), and the second medium part (15) is clamped between the lock shell (1) and the pulling-dragging part (3) after assembly.

13. The key of the key-inserting type intelligent lock comprises an intelligent key (2), wherein the intelligent key (2) is provided with a holding part (21) and an unlocking part (22), the unlocking part (22) is provided with teeth (25), the key is characterized in that a first encryption chip (23) is arranged in the holding part (21), and a key circuit board (24) electrically connected with the first encryption chip (23) is arranged on the unlocking part (22).

Images