CN110029874B - Key-inserted intelligent lock cylinder and adaptive key thereof - Google Patents

Abstract

The invention relates to a key-inserted intelligent lock cylinder, which comprises a lock shell, a poking and dragging device, a rotating shaft, a lock liner and an intelligent key, wherein an electric clutch cavity is arranged in the rotating shaft, a rotary key and an electric clutch device capable of driving the rotary key to be in linkage with or separated from the lock liner 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, key contacts are arranged on the key circuit board, conductive pins are arranged in a lock shell and a lock liner, a control device is provided with an encryption authentication circuit for carrying out key authentication with the first encryption chip, and after the key authentication is passed, the control device controls an electric clutch device to drive a rotary key to be in joint linkage with the lock liner, so that the intelligent key can be unlocked by twisting; the mechanical verification and password verification double-combination mode is adopted, and only the key and the password are successfully matched, the unlocking can be achieved, and the safety performance is high.

Description

Key-inserted intelligent lock cylinder and adaptive key thereof

[ field of technology ]

The invention relates to the technical field of locks, in particular to a key-inserted intelligent lock cylinder and an adaptive key thereof.

[ background Art ]

The intelligent lock in the prior art generally adopts intelligent key mechanical verification, fingerprint verification, card swiping verification, password verification and other single verification, and an lawbreaker can unlock by only damaging one verification mode, so that 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, and in order to convert the rotation motion of the motor into the motion of unlocking and unlocking left and right motions, a complex transmission mechanism is needed to realize, and the time of the positive and negative rotation of the motor needs to be accurately controlled, so that the transmission mechanism is easily damaged; because it is difficult to precisely control the forward and reverse rotation time of the motor, if screw drive is adopted, the motor is easily driven to be in a position to form idle rotation, and some double-spring electronic locks capable of solving the problems are also appeared in the prior art, such as the Chinese patent publication number CN83790443B, the invention name is: a motor transmission device for use in an electronic lock adopts the following technical scheme: the forward and reverse rotation motor is fixed in the mounting cavity of the motor shell; one end of the tooth rotating shaft is fixedly connected with an output shaft of the positive and negative rotating motor to realize linkage; the outer diameter of the tooth rotating sleeve is smaller than the diameter of an extension port of the motor shell, and the tooth rotating sleeve is sleeved on the tooth rotating shaft through a through hole so that a first thread on the tooth rotating shaft and a second thread in the tooth rotating sleeve are meshed with each other; the inner rotating tooth spring is sleeved on the rotating tooth shaft, and two ends of the inner rotating tooth spring are positioned between the positive and negative rotating motor and the rotating tooth sleeve; the outer tooth rotating spring is sleeved on the tooth rotating sleeve, and two ends of the outer tooth rotating spring are positioned between the tooth rotating sleeve and the inner wall of the motor shell; the second thread of the tooth rotating sleeve is reversely meshed with the first thread of the tooth rotating shaft after the compression of the inner tooth rotating spring, once the motor is reversed, the tooth rotating sleeve immediately stretches out of the thread transmission without idle running, and similarly, when the locking is carried out, the second thread of the tooth rotating sleeve is reversely meshed with the first thread of the tooth rotating shaft after the compression of the outer tooth rotating spring. According to the technical scheme, although the problem that the traditional screw rod and the screw sleeve easily form idle rotation is solved by adding two springs, the electronic lock does not need to control the time of forward and reverse rotation of the motor too accurately, but the following technical problems exist:

1. because the first thread and the second thread are always in reverse engagement, the tooth rotating shaft always drives the tooth rotating sleeve to rotate together no matter the motor rotates positively or reversely; however, when the tooth rotating sleeve is mechanically blocked with other mechanisms in the lock, the problems of relative idle sliding between the first thread and the second thread and the like are caused, and the transmission device is damaged and fails when serious;

2. the inner end surface of the tooth rotating sleeve is externally provided with an annular flange, the tooth rotating sleeve is sleeved with an outer tooth rotating spring, and two ends of the tooth rotating spring are positioned between the annular flange and the inner end surface of an extending port of the motor shell; the processing technology of the structure is complex, and the annular flange extends outwards from the inner end surface of the tooth rotating sleeve, so that the size of the tooth rotating sleeve is enlarged, and the requirement of a small lockset cannot be met.

3. The patent specification does not describe any practical application of the transmission device, and for those skilled in the art, the transmission device has a complex structure, particularly, the motor housing is formed by buckling an upper housing and a lower housing, and the transmission device cannot be widely applied to all locks, particularly, cannot be applied to electronic locks adopting a pin tumbler lock housing or a blade lock housing.

Therefore, designing a high security dual authentication intelligent lock is an urgent problem to be solved by the present invention.

[ invention ]

In order to solve the problems, the invention provides a high-security double-insurance key-inserted intelligent lock cylinder and an adaptive key thereof.

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

the utility model provides a plug key formula intelligent lock core, includes the lock shell, install dial in the lock shell middle part open slot and drag and install in the axis of rotation and lock courage in the lock shell of dialling and dragging both sides, the axis of rotation is with dialling and drag the linkage, be provided with the opening in the axis of rotation and drag the electronic separation and reunion chamber, be provided with in the electronic separation and reunion chamber with the axis of rotation linkage and with dial and drag the electronic clutch device of linkage, and can drive the change along its axial displacement with lock courage joint linkage or separation, electronic clutch device electricity is connected with controlling means, and this plug key formula intelligent lock core still includes the intelligent key, the lock courage be provided with the key hole that the intelligent key suited, the intelligent key has a portion of gripping and unlocking, be provided with first encryption chip in the portion, be provided with the first encryption chip electricity the key circuit board that is connected, be provided with the contact on the key circuit board, shell and lock are provided with one end along its axial displacement with lock courage joint linkage or separation electric control ball lock courage, electric key is provided with the encryption device with the key is authenticated to turn key, the key is connected with the key device is authenticated to the key.

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

As a preferred embodiment, further defined as: the control device comprises a main control chip, a power supply circuit electrically connected with a power supply 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 supply 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 as: 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 which stretches into the transmission cavity, a nut which can be 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 also sleeved with a first return spring and a second return spring which are respectively positioned at two sides of the screw cap, the screw cap compresses the first return spring when the transmission motor drives the worm to rotate forward or reversely, and the first return spring pushes the rotary key to move axially along the rotating shaft of the worm to be jointed and linked with the lock liner; 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 move axially along the rotating shaft of the worm and separate from the lock liner.

As a preferred embodiment, further defined as: the driving cavity is internally provided with a positioning groove, the outer side of the nut is outwards protruded to form a positioning part which is matched with the positioning groove, and the positioning part slides along the positioning groove when the nut axially moves along the rotating shaft of the worm.

One end of the first return spring is propped against the cavity bottom of the transmission cavity, and the other end of the first return spring is propped against the nut; the cavity opening of the transmission cavity is provided with a return spring baffle plate which can be penetrated by the worm, one end of the second return spring is propped against the return spring baffle plate, and the other end of the second return spring is propped against the nut.

As a preferred embodiment, further defined as: the drive motor is preferably a hollow cup motor.

As a preferred embodiment, further defined as: one side of the lock liner, which is close to the poking and dragging device, is provided with a positioning pin hole communicated with the key hole, and a lock liner positioning pin is arranged in the positioning pin hole.

As a preferred embodiment, further defined as: the lock shell is provided with a first contact hole, the lock liner is provided with a second contact hole matched with the first contact hole, the conductive marble comprises a lock shell contact arranged in the first contact hole, a lock shell contact sleeve sleeved outside the lock shell contact, a lock liner contact arranged in the second contact hole and matched with the lock shell contact, and a lock liner contact sleeve sleeved outside the lock liner contact.

As a preferred embodiment, further defined as: the middle part of the poking and dragging part is provided with a through hole, the middle part of the poking and dragging part is inwards protruded to form an annular clamping edge, so that a first rotating groove which can be used for the front end of the rotating shaft to be inserted is formed at one end of the poking and dragging part, and a second rotating groove which can be used for the front end of the lock liner to be inserted is formed at the other end of the poking and dragging part; 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 the rotating shaft is further provided with a second slot, a second inserting key matched with the second slot is formed at the side end of the rotary key in a protruding mode, the annular clamping edge is provided with a third slot which can be used for the second inserting key to insert into the notch, and the front end of the lock liner is provided with a third slot which can be used for the second inserting key to insert.

As a preferred embodiment, further defined as: the rear end of the rotating shaft is convexly provided with a fixing part extending out of the lock shell, the fixing part is sleeved with a knob, and the control device is arranged in the knob; when the knob is twisted, the rotating shaft drives the poking and dragging to rotate for unlocking through the rotary key.

As a preferred embodiment, further defined as: the lock shell is radially provided with a mounting hole for mounting the rotating shaft and the lock liner, one end of the rotating shaft, facing the poking and dragging, is radially provided with a first annular groove, a first meson piece with the outer diameter larger than the aperture of the mounting hole is arranged in the first annular groove, and the first meson piece is clamped between the lock shell and the poking and dragging after assembly; the lock courage orientation dial one end that drags radially is provided with the second ring channel, be provided with in the second ring channel the external diameter is greater than the second meson spare in mounting hole aperture, after the assembly the second meson spare is held between the lock shell and the dial and drag.

The key of key-inserted intelligent lock cylinder comprises an intelligent key, wherein the intelligent key is provided with a holding part and an unlocking part, and the unlocking part is provided with teeth.

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

in addition, the nut is driven by the transmission motor to axially move in the worm, so that the nut can be driven by the elasticity of the first return spring or the second return spring to perform joint linkage or separation with the lock cylinder, and the structure is simple. When the rotary key and the lock liner are mechanically blocked, the first return spring or the second return spring plays a role in buffering, so that the problems of relative idle sliding wire and the like between the nut and the worm are prevented, the design is ingenious, and the service life of the electric clutch device is effectively prolonged. In addition, the first return spring and the second return spring can promote the engagement of the nut and the worm, so that the working stability is improved.

[ description of the drawings ]

FIG. 1 is a schematic view of the structure created by the present invention;

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

FIG. 3 is a schematic diagram of the structure of a smart key;

FIG. 4 is an exploded schematic view of a key fob;

FIG. 5 is a cross-sectional view of an unlocked condition;

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

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

FIG. 8 is one of the schematic structural views of a dip;

FIG. 9 is a second schematic diagram of a dip;

FIG. 10 is a schematic structural view of a rotating shaft;

FIG. 11 is a schematic diagram of the structure of the lock cylinder;

FIG. 12 is a schematic diagram of the structure 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 a 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 the buzzer circuit;

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

[ detailed description ] of the invention

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

as shown in fig. 1 to 7, a key-inserting intelligent lock cylinder comprises a lock shell 1, a shifting mop 3 arranged in an opening groove in the middle of the lock shell 1, a rotating shaft 4 and a lock liner 5 arranged in the lock shell 1 positioned at two sides of the shifting mop 3, wherein the rotating shaft 4 is linked with the shifting mop 3, an electric clutch cavity 45 with an opening facing the shifting mop 3 is arranged in the rotating shaft 4, a rotary key 6 which is linked with the rotating shaft 4 and is linked with the shifting mop 3 is arranged in the electric clutch cavity 45, an electric clutch device 7 which can drive the rotary key 6 to move along the axial direction of the rotary key and is jointed with the lock liner 5 for linkage or separation, the electric clutch device 7 is electrically connected with a control device 8, the key-inserted intelligent lock cylinder further comprises an intelligent key 2, the lock liner 5 is provided with a key hole 51 which is matched with the intelligent key 2, as shown in fig. 3 and fig. 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 of a model of an Microchip company, which is ATSHA204A, has a rich encryption IC, performs encryption operation by using an SHA-256 algorithm, a slot with 16 x 32 bytes is internally provided with user data and a key, a unique 9 byte serial number is used for distinguishing other chips, and an OTP (dynamic password) area with 512bits is used for storing some fixed information, so that the security is extremely high. 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, one ends of the lock shell 1 and the lock liner 5 are provided with conductive pins 85 for electrically contacting the key contact 26, the other ends of the conductive pins 85 are electrically connected with the control device 8, and the key circuit board 24 communicates with the control device 8 in a metal contact mode, so that the key circuit board is of a passive design. The control device 8 is provided with an encryption authentication circuit 83 for performing 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 jointed and linked with the lock liner 5, and the intelligent key 2 is twisted to unlock. The invention adopts a mode of combining mechanical verification and password verification, and can unlock only if the key and the password are successfully matched, thereby realizing double-guarantee unlocking and having high safety performance.

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

Further, the control device 8 includes a main control chip 81, a power supply circuit 82 electrically connected to a power supply input end of the main control chip 81, an encryption authentication circuit 83 electrically connected to a signal input end of the main control chip 81, and a motor driving circuit 84 electrically connected to a driving output end of the main control chip 81, the power supply circuit 82 is electrically connected to the battery 9, the encryption authentication circuit 83 is electrically connected to the conductive balls 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 of SGM 42507. The control circuit 8 further comprises a memory circuit 86 for storing data and a buzzer circuit 87 for sounding an alarm. The main control chip 81 is se:Sub>A nRF52832 series chip, preferably se:Sub>A nRF52832-QFAA chip, which can support NFC-A, can be used as se:Sub>A Tag, can be used for close-range security connection in cooperation with se:Sub>A smart phone, and avoids complicated connection establishment processes such as password input. In this embodiment, the main control chip 81 has an ultra-low peak value, has low power consumption, and after power-on starting, reads the ID of the main control chip 81 and sends the ID to the second encryption chip to start the self-checking software algorithm, and determines whether the main control chip 81 and the second encryption chip have verification of being modified or tampered.

If the self-checking is successful, inserting a configuration key to configure, and starting low-power BLE broadcasting and entering a dormant state. When a key is inserted into the lock cylinder 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, the second encryption chip executes SHA256 algorithm operation to obtain ciphertext, then sends the ciphertext to the first encryption chip 23 for operation, and finally feeds back the ciphertext to the first encryption chip 23, and after the bidirectional verification is passed, the verification is successful. The motor driving circuit 84 drives the transmission motor 71 to rotate into an unlocking state, and sends out a short warning through the buzzer. If the verification fails, sending out continuous alarm reminding for multiple times through the buzzer, and stopping the verification action. The unique ID of the first encryption chip 23 is already preset and completed in the process of manufacturer production, and has uniqueness and high security.

In addition to the verification action, if the main control chip 81 receives the bluetooth data message sent by the mobile phone App end, the security authorization authentication will be started. If the authorization authentication is successful, the operation is a legal manager, and the key and 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 provided in the rotary key 6, the electric clutch device 7 includes 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. The 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 axially move relative to the rotary key 6; the worm 72 is also sleeved with a first return spring 74 and a second return spring 75 which are respectively positioned at two sides of the nut 73, when the transmission motor 71 drives the worm 72 to rotate forward or reversely, the nut 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 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 moves axially along the rotation axis 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 axially move along the rotating shaft of the worm 72, so that the rotary key 6 and the lock cylinder 5 are in joint linkage or separation. 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 liner 5 are mechanically blocked, so that the problems of relative idle sliding wire and the like between the nut 73 and the worm 72 are prevented, 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 promote the nut 73 to keep engaged with the worm 72, so that the stability of the electric clutch device is improved.

In this embodiment, a positioning groove 62 is provided in the transmission cavity 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 axially along the rotation axis of the worm 72. The cooperation of the positioning portion 76 and the positioning groove 62 makes the nut 73 move only along the axial direction of the rotation shaft of the worm 72, but not rotate circumferentially, so as to limit 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 compressed stroke of the first return spring 74 when the rotary key 6 is in joint linkage with the lock cylinder 5 is the stroke of the nut 73, and at this time, the first return spring 74 can push one side of the nut 73 to be kept engaged with the worm 72. The cavity mouth 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 abuts against the nut 73. The compressed stroke of the second return spring 75 when the rotary key 6 is separated from the lock cylinder 5 is the stroke of the nut 73, and at this time, 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 that is communicated with the key hole 51 is provided on a side of the lock cylinder 5 near the pulling member 3, and a lock cylinder positioning pin 54 is provided in the positioning pin hole 53. The lock liner positioning pin 54 not only can play a role in positioning and fixing, but also can prevent lawless persons from drilling and breaking the electric clutch device after clamping and breaking the lock liner, and effectively improves the safety of the electronic lock cylinder.

In this embodiment, the lock case 1 is provided with a first contact hole 11, the lock cylinder 5 is provided with a second contact hole 56 matched with the first contact hole 11, the conductive marble 85 comprises a lock case contact 12 arranged in the first contact hole 11, a lock case contact sleeve 13 sleeved outside the lock case contact 12, a lock cylinder contact 57 matched with the lock case contact 12 and a lock cylinder contact sleeve 58 sleeved outside the lock cylinder contact 57 arranged in the second contact hole 56. Further, three key contacts 26 are provided on the key circuit board 24 to form a positive power supply, a negative power supply and a ground power supply, the lower end of the lock cylinder contact 57 is electrically connected to the key contacts 26, the upper end of the lock cylinder contact 57 is electrically connected to the lower end of the lock case contact 12, and the upper end of the lock case contact 12 is electrically connected to the encryption authentication circuit 83.

In this embodiment, as shown in fig. 8 to 12, the middle part of the pulling 3 has a through hole 31, and an annular clamping edge 32 is formed by protruding inwards in the middle part of the pulling 3, 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 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; 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, the linkage of the rotating shaft 4 and the poking and dragging 3 can be realized. The front end of the rotating shaft 4 is further provided with a second slot 42, a second inserting key 63 matched with the second slot 42 is formed at the side end of the rotary key 6 in a protruding mode, the annular clamping edge 32 is provided with a third slot 55 which can be used for inserting the second inserting key 63 into the notch 36, and after assembly, linkage between the rotary key 6 and the rotating shaft 4, linkage between the rotary key 6 and the pulling 3 and linkage between the rotary key 6 and the lock liner 5 can be achieved.

In this embodiment, a fixing portion 43 protruding out of the lock case 1 is formed at the rear end of the rotating shaft 4 in a protruding manner, a knob 10 is sleeved on the fixing portion 43, and the control device 8 is disposed in the knob 10; when the knob 10 is twisted, the rotating shaft 4 drives the poking and dragging 3 to rotate for unlocking through the rotary key 6, so that the structure is simple, and the indoor unlocking is realized.

In this embodiment, the lock case 1 is radially provided with a mounting hole for mounting the rotation shaft 4 and the lock cylinder 5, one end of the rotation shaft 4 facing the dial 3 is radially provided with a first annular groove 44, a first meson piece 14 with an outer diameter larger than the aperture of the mounting hole is arranged in the first annular groove 44, and after assembly, the first meson piece 14 is clamped between the lock case 1 and the dial 3; the lock courage 5 orientation dial and drag 3's one end radially is provided with the second ring channel 59, be provided with in the second ring channel 59 the external diameter is greater than the second meson spare 15 of mounting hole aperture, after the assembly second meson spare 15 is held between lock shell 1 and the dial and drag 3, first meson spare 14 and second meson spare 15 play fixed and spacing effect to axis of rotation 4 and lock courage 5 respectively, prevent axial displacement.

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

Claims (12)

1. The key-inserted intelligent lock cylinder comprises a lock shell (1), a shifting mop (3) arranged in an opening groove in the middle of the lock shell (1), and a rotating shaft (4) and a lock liner (5) arranged in the lock shell (1) positioned at two sides of the shifting mop (3), wherein the rotating shaft (4) is linked with the shifting mop (3), an electric clutch cavity (45) with an opening facing the shifting mop (3) is arranged in the rotating shaft (4), a rotating key (6) which is linked with the rotating shaft (4) and linked with the shifting mop (3) is arranged in the electric clutch cavity (45), and an electric clutch device (7) which can drive the rotating key (6) to move along the axial direction and joint and link or separate with the lock liner (5), the electric clutch device (7) is electrically connected with a control device (8), the key-inserted intelligent lock cylinder is characterized in that the key-inserted intelligent lock cylinder (5) is provided with a hole (51) with an opening facing the shifting mop (3), the intelligent key (2) is provided with a holding part (21) and a first chip (23) which is provided with an encryption part (23), a key contact (26) is arranged on the key circuit board (24), one end of each of the lock shell (1) and the lock liner (5) is internally provided with a conductive marble (85) which is used for being electrically contacted with the key contact (26), the other end of each conductive marble (85) is electrically connected with the control device (8), the control device (8) is provided with an encryption authentication circuit (83) which is used 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 in joint linkage with the lock liner (5), the intelligent key (2) can be twisted to unlock, a transmission cavity (61) is arranged in the rotary key (6), the electric clutch device (7) comprises a transmission motor (71), an output shaft of the transmission motor (71) is connected with a worm (72) which is stretched into the transmission cavity (61), the worm (72) is sleeved with a screw cap (73) which can be in threaded connection with the worm (72), and the worm (72) can drive the screw cap (72) to axially move relative to the rotary key (6); the worm (72) is also 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 reversely, the screw cap (73) compresses the first return spring (74), and the first return spring (74) pushes the rotary key (6) to move along the axial direction of the rotating shaft of the worm (72) to be jointed and linked with the lock liner (5); when the transmission motor (71) drives the worm (72) to rotate reversely or positively, 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) and separate from the lock cylinder (5).

2. The key-inserted intelligent lock cylinder according to claim 1, characterized in that teeth (25) are further arranged on the unlocking part (22), a marble hole is further arranged in the lock shell (1) and the lock liner (5), and a marble component (52) matched with the teeth (25) is arranged in the marble hole.

3. Key-type intelligent lock cylinder according to claim 2, characterized in that the control device (8) comprises a main control chip (81), a power supply circuit (82) electrically connected with a power supply 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 drive circuit (84) electrically connected with a drive output end of the main control chip (81), the motor drive circuit (84) is electrically connected with the transmission motor (71), the power supply circuit (82) is electrically connected with a battery (9), the encryption authentication circuit (83) is electrically connected with the conductive marble (85), and the motor drive circuit (84) is electrically connected with the electric clutch device (7).

4. The key-inserted intelligent lock cylinder according to claim 1, characterized in that a positioning groove (62) is provided in the transmission cavity (61), a positioning portion (76) adapted 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 axially along the rotation axis of the worm (72).

5. Key-in intelligent lock cylinder according to claim 1, characterized in that one end of said first return spring (74) abuts against the bottom of said transmission cavity (61) and the other end abuts against said nut (73); the cavity mouth of the transmission cavity (61) is provided with a return spring baffle plate (77) which can be penetrated by the worm (72), one end of the second return spring (75) is propped against the return spring baffle plate (77), and the other end of the second return spring is propped against the nut (73).

6. Key-in intelligent lock cylinder according to claim 1, characterized in that the drive motor (71) is preferably a coreless motor.

7. The key-inserted intelligent lock cylinder according to claim 1, characterized in that a positioning pin hole (53) communicated with the key hole (51) is arranged on one side of the lock cylinder (5) close to the poking and dragging (3), and a lock cylinder positioning pin (54) is arranged in the positioning pin hole (53).

8. Key-type intelligent lock cylinder according to claim 1, characterized in that the lock housing (1) is provided with a first contact hole (11), the lock cylinder (5) is provided with a second contact hole (56) matched with the first contact hole (11), the conductive marble (85) comprises a lock housing contact (12) arranged in the first contact hole (11) and a lock housing contact sleeve (13) sleeved outside the lock housing contact (12), and a lock cylinder contact (57) matched with the lock housing contact (12) and a lock cylinder contact sleeve (58) sleeved outside the lock cylinder contact (57) arranged in the second contact hole (56).

9. The key-inserted intelligent lock cylinder according to any one of claims 1 to 8, characterized in that the middle part of the shifting mop (3) is provided with a through hole (31), the middle part of the shifting mop (3) is internally provided with an annular clamping edge (32) in a protruding way, so that one end of the shifting mop (3) is provided with a first rotating groove (33) for inserting the front end of the rotating shaft (4), and the other end is provided with a second rotating groove (34) for inserting the front end of the lock liner (5); 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 the rotating shaft (4) is further provided with a second slot (42), a second inserting key (63) matched with the second slot (42) is formed at the side end of the rotary key (6) in a protruding mode, the annular clamping edge (32) is provided with a notch (36) for the second inserting key (63) to be inserted, and a third slot (55) for the second inserting key (63) to be inserted is formed at the front end of the lock liner (5).

10. The key-inserted intelligent lock cylinder according to any one of claims 1-8, characterized in that a fixing part (43) protruding out of the lock case (1) is formed at the rear end of the rotating shaft (4) in a protruding manner, a knob (10) is sleeved on the fixing part (43), and the control device (8) is arranged in the knob (10); when the knob (10) is twisted, the rotating shaft (4) drives the poking drag (3) to rotate for unlocking through the rotating key (6).

11. The key-inserted intelligent lock cylinder according to any one of claims 1-8, characterized in that the lock shell (1) is radially provided with a mounting hole for mounting the rotating shaft (4) and the lock cylinder (5), one end of the rotating shaft (4) facing the poking and dragging (3) is radially provided with a first annular groove (44), a first meson piece (14) with the outer diameter larger than the aperture of the mounting hole is arranged in the first annular groove (44), and the first meson piece (14) is clamped between the lock shell (1) and the poking and dragging (3) after assembly; the lock core (5) is radially provided with a second annular groove (59) towards one end of the poking and dragging device (3), a second meson piece (15) with the outer diameter larger than the aperture of the mounting hole is arranged in the second annular groove (59), and after assembly, the second meson piece (15) is clamped between the lock shell (1) and the poking and dragging device (3).

12. A key adapted to a key-operated smart key cylinder according to any one of claims 1-11, comprising a smart key (2), said smart key (2) having a grip portion (21) and an unlocking portion (22), said unlocking portion (22) being provided with teeth (25), characterized in that a first encryption chip (23) is provided in said grip portion (21), and said unlocking portion (22) being provided with a key circuit board (24) electrically connected to said first encryption chip (23).