CN211201424U - Door lock - Google Patents

Abstract

The embodiment of the application provides a door lock, including key, lock core, locking mechanical system and control module, the lock core, including casing, lock core inner bag, a plurality of pellet shot from a slingshot, locking mechanical system and a plurality of probe, a plurality of pellet shot from a slingshot one-to-one set up in the casing to with the cooperation of any side tartar of key. The control module is used for controlling the locking mechanism to remove the limitation on the lock cylinder liner when the probes are electrically coupled with the key, and unlocking is completed in a double authentication mode by arranging the probes and the marbles, so that the safety of the door lock is effectively improved.

Description

Door lock

Technical Field

The application relates to the technical field of locks, in particular to a door lock.

Background

Along with the continuous development of intelligent house, intelligent lock belongs to the important intelligent product in the middle of the intelligent house, and wherein, the electron mode of unblanking such as fingerprint, punching the card, password has brought the facility in the use for people, and current most intelligent lock only matches through simple password when unblanking, lacks the setting of confidentiality, has certain potential safety hazard, in addition, under the condition that intelligent lock breaks down, the user can't unblank.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a door lock to improve the safety of the door lock.

The embodiment of the application provides a door lock, including the key, the lock core, locking mechanical system and control module, the lock core includes the casing, the lock core inner bag, a plurality of pellet shot from a slingshot, locking mechanical system and a plurality of probe, the lock core inner bag that sets up in the casing is equipped with the key hole, a plurality of pellet shot from a slingshot one-to-one set up in the casing, and with the cooperation of arbitrary side tartar of key, locking mechanical system sets up in the casing and is used for the lock core inner bag of restriction to rotate, control module is connected with a plurality of probe electricity respectively, and be used for control locking mechanical system when a plurality of probes and key form electric coupling to remove the restriction.

The application provides a lock is used for forming electric coupling with the key through setting up a plurality of probes, when the key inserts the lock core and unblanks, needs arbitrary side tartar and a plurality of pellet shot from a slingshot cooperation of key, when needing key and probe to form electric coupling simultaneously, control module side control locking mechanical system removes the restriction to the lock core inner bag, just can realize opening the door, accomplishes the action of unblanking through dual authentication mode promptly, the security of effectual improvement lock.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a structural view of a door lock proposed in an embodiment of the present application;

FIG. 2 is a sectional view taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at III;

FIG. 4 is an enlarged view of a portion IV of FIG. 2;

fig. 5 is a partial structural view of a key according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Along with the development of smart homes, the smart door lock belongs to important intelligent products in smart homes. The lock core of the existing intelligent door lock still stays on the level of the mechanical lock core, and the mechanical lock core can be unlocked by lawless persons through tools such as a master key and the like. The intelligent lock of present majority does not set up mechanical lock core, when unblanking, only through simple password matching, lacks the setting of security, has certain potential safety hazard, in addition, under the condition that intelligent lock breaks down, the user can't unblank. Therefore, the inventor proposes the door lock in the embodiment of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Examples

Referring to fig. 1, the present embodiment provides a door lock 100, which includes a key 110, a lock cylinder 120, and a control module 130, wherein the key 110 can be inserted into the lock cylinder 120 for unlocking, and the control module 130 is disposed in the lock cylinder 120.

Referring to fig. 2 and fig. 3, in the present embodiment, the key cylinder 120 includes a housing 121, a key cylinder liner 122, a plurality of pins 123, a locking mechanism 124, and a plurality of probes 125, wherein the key cylinder liner 122 and the locking mechanism 124 are both disposed in the housing 121, the plurality of pins 123 and the plurality of probes 125 are disposed in the housing 121, and the control module 130 is electrically connected to the plurality of probes 125.

In this embodiment, the housing 121 has a receiving cavity (not shown), wherein the receiving cavity can be used for mounting the key cylinder liner 122, the pins 123, the control module 130, and other devices, and a mounting hole 1211 is formed in an outer wall of the housing 121, and the mounting hole 1211 penetrates through the housing 121 and is communicated with the receiving cavity. In this embodiment, the housing 121 is provided with a plurality of pin passages 1212 for mounting the pins 123, the pin passages 1212 are respectively communicated with the accommodating cavities, the pin passages 1212 are arranged side by side along the insertion direction of the key 110, and the insertion direction refers to the movement direction of the key 110 when being inserted into the plug liner 122.

In this embodiment, the inner wall of the housing 121 is provided with a plurality of sliding grooves 1213 for mounting the pins 123, and the sliding grooves 1213 communicate with the accommodating cavity, wherein the sliding grooves 1213 are disposed opposite to the pin channels 1212. In this embodiment, the housing 121 is further provided with a tongue-blocking chute 1214 for mounting the locking mechanism 124, wherein the tongue-blocking chute 1214 is disposed on the inner wall of the housing 121 and is communicated with the accommodating cavity of the housing 121.

In this embodiment, the cylinder liner 122 is disposed in the housing 121, and the cylinder liner 122 is provided with a key hole 1221 into which the key 110 is inserted. Specifically, the cylinder liner 122 can be inserted into the accommodating cavity of the housing 121 through the mounting hole 1211, and the cylinder liner 122 can rotate with the axis of the mounting hole 1211 as a rotation axis. Wherein the key hole 1221 is exposed to the housing 121 so that the key 110 can be inserted into the key hole 1221. The lock cylinder liner 122 is provided with a plurality of through holes 1222, and the plurality of through holes 1222 are in one-to-one correspondence and communication with the plurality of pin channels 1212. The cylinder liner 122 is provided with a plurality of guide grooves 1223 in communication with the keyway 1221, wherein the guide grooves 1223 are used to mount the probe 125. Specifically, the guide groove 1223 is disposed on an inner wall of the plug inner 122 and communicates with the keyhole 1221, wherein the guide groove 1223 is disposed opposite to the pin passage 1212.

In this embodiment, the cylinder liner 122 is provided with a plurality of mating guide holes 1224, wherein each of the plurality of mating guide holes 1224 extends through the cylinder liner 122 and communicates with the key hole 1221, and wherein each of the plurality of mating guide holes 1224 communicates with the sliding groove 1213. In addition, in the present embodiment, the lock cylinder liner 122 is provided with a locking hole 1225 engaged with the tongue-blocking chute 1214, wherein the locking hole 1225 is disposed on an outer wall of the lock cylinder liner 122 and can be opposite to the tongue-blocking chute 1214, and during the rotation of the lock cylinder liner 122, the locking hole 1225 can communicate with the tongue-blocking chute 1214. A tongue blocking electromagnet 12251 is disposed within the locking hole 1225, wherein the tongue blocking electromagnet 12251 is electrically connected to the control module 130, and the tongue blocking electromagnet 12251 is operable to drive the locking mechanism 124 to slide into or out of the locking hole 1225.

Referring to fig. 2 and fig. 4, in the present embodiment, the locking mechanism 124 is disposed on the housing 121 and is used for limiting the rotation of the cylinder liner 122, and it should be noted that the limitation means that the locking mechanism 124 can lock the cylinder liner 122 and limit the rotation of the cylinder liner 122. Specifically, in the present embodiment, the locking mechanism 124 includes a tongue blocking portion 1241, wherein the tongue blocking portion 1241 is provided with a second magnetic member 12411 cooperating with the tongue blocking electromagnet 12251, the tongue blocking portion 1241 is slidably disposed in the tongue blocking chute 1214, and the second magnetic member 12411 faces the tongue blocking electromagnet 12251.

When the tongue-blocking electromagnet 12251 is in an energized state, the second magnetic member 12411 drives the tongue-blocking portion 1241 to extend into the locking hole 1225 under the attraction of the tongue-blocking electromagnet 12251, wherein one end of the tongue-blocking portion 1241 is located in the locking hole 1225, and the other end is located in the tongue-blocking chute 1214, and since the two ends of the tongue-blocking portion 1241 extend into the cylinder core 122 and the housing 121 at the same time, the tongue-blocking portion 1241 locks the cylinder core 122, so that the cylinder core 122 cannot rotate relative to the housing 121; when the tongue-blocking electromagnet 12251 is in the deenergized state, the tongue-blocking portion 1241 slides out of the lock hole 1225, and the lock of the cylinder liner 122 is released.

In some application environments, when the door lock 100 is in a power-off state, the blocking tongue portion 1241 slides away from the locking hole 1225 due to the blocking tongue electromagnet 12251 being in an unpowered state, and at this time, the door lock 100 is equivalent to a mechanical lock, and when teeth on any side of the key 110 are matched with the plurality of pins 123 of the door lock 100, unlocking can be achieved, so that the locking mechanism 124 can be effectively prevented from continuously keeping a limit on the lock cylinder liner 122 when the door lock 100 is in the power-off state, and a user cannot unlock the lock cylinder.

By controlling the power on or off of the tongue electromagnet 12251 via the control module 130, the locking mechanism 124 can quickly limit or release the cylinder liner 122.

In this embodiment, the plurality of pins 123 are disposed in the housing 121 in a one-to-one correspondence, and are engaged with the teeth on any side of the key 110, and it should be noted that: the teeth of the key 110 refer to grooves formed on the surface of the key 110, and when the pins 123 are engaged with the teeth, the pins 123 may fall into the teeth. In this embodiment, the plurality of pins 123 includes a plurality of first pins 1231 and a plurality of second pins 1232, wherein the plurality of first pins 1231 are slidably disposed in the pin channel 1212 in a one-to-one correspondence manner, and are slidably disposed in the through hole 1222 and partially extend into the keyhole 1221.

In some applications, when the first pin 1231 is in the free state, the first pin 1231 can slide from the pin channel 1212 into the through hole 1222, and a portion of the first pin 1231 extends into the keyway 1221. When the key 110 is inserted into the key hole 1221 and the teeth of the key 110 are matched with the first pins 1231, the portion of the first pins 1231 extending into the key hole 1221 falls into the teeth of the key 110, and at this time, the first pins 1231 completely fall into the through holes 1222, and the first pins 1231 are not in the pin channels 1212, so that when the user rotates the plug liner 122, the plug liner 122 can rotate relative to the housing 121; when the teeth of the key 110 are not matched with the first pins 1231, the portion of the first pins 1231 extending into the key hole 1221 cannot fall into the teeth of the key 110, and at this time, the first pins 1231 abut against the key, so that one end of the first pins 1231 extends into the pin channel 1212, and the other end of the first pins 1231 extends into the through hole 1222, and since the first pins 1231 are both located in the cylinder liner 122 and the housing 121, the cylinder liner 122 cannot rotate relative to the housing 121.

By slidably disposing the first pin 1231 in the pin channel 1212, wherein the first pin 1231 can freely slide from the pin channel 1212 into the through hole 1222 and partially extend into the keyhole 1221, there is no need to separately add an elastic element or an elastic mechanism to eject the first pin 1231 out of the pin channel 1212, so that the first pin 1231 has a simpler structure and is convenient to assemble, and in addition, the situation that the first pin 1231 is locked and cannot extend into the keyhole 1221 can be avoided.

In this embodiment, the second pin 1232 is slidably disposed in the sliding groove 1213 and selectively extends into the key hole 1221, and the second pin 1232 is disposed opposite to the first pin 1231, and it should be noted that the second pin 1232 and the first pin 1231 are disposed axially symmetrically with respect to the key hole 1221. Specifically, in this embodiment, the second pin 1232 includes a fixing portion 12321, an elastic member 12322, a first telescopic portion 12323 and a second telescopic portion 12324, wherein the fixing portion 12321 is disposed in the sliding groove 1213, two ends of the elastic member 12322 are respectively connected to the fixing portion 12321 and the first telescopic portion 12323, the first telescopic portion 12323 is slidably disposed in the sliding groove 1213, and correspondingly, the second telescopic portion 12324 is slidably disposed in the matching guiding hole 1224 and can selectively extend into the key hole 1221.

When the key 110 is not inserted into the key hole 1221, the elastic member 12322 is in a normal state, the first expansion part 12323 extends into the fitting guide hole 1224 and abuts against the second expansion part 12324, at this time, at least a portion of the second expansion part 12324 extends into the key hole 1221, and the first expansion part 184 is simultaneously located in the housing 121 and the cylinder liner 122, so that the cylinder liner 122 cannot rotate relative to the housing 121; when the key is inserted into the key hole 1221, if the second telescoping portion 12324 engages the bits on the key 110, the second telescoping portion 12324 is at least partially retracted into the engagement guide hole 1224 and pushes the first telescoping portion 12323 back into the sliding groove 1213, so that the first telescoping portion 12323 is separated from the cylinder liner 122, allowing the cylinder liner 122 to rotate relative to the housing 121.

By providing the first pin 1231 and the second pin 1232, and by providing the first pin 1231 and the second pin 1232 opposite to each other, the degree of matching between the teeth of the key 110 and the pins 123 in the key cylinder 120 can be further improved, and the safety of the door lock 100 can be improved.

In some embodiments, the pins 123 may include the first pins 1231 or the second pins 1232. Further, in some embodiments, first pins 1231 and second pins 1232 may be disposed on either side of plug liner 122 about the axis of keyway 1221 to mate with the serrations on either side of key 110.

The probes 125 are used for electrically contacting the key 110, the probes 125 are disposed on the cylinder liner 122 and opposite to the first pins 1231, and the probes 125 are electrically connected to the control module 130. Specifically, in this embodiment, each probe 125 includes a slider 1251, a first magnetic member 1253, and an electrical contact 1252, wherein the electrical contact 1252 is made of a material having a conductive function. The electrical contacts 1252 are electrically connected to the control module 130. An electromagnet 12231 is provided in the guide groove 1223 to be engaged with the first magnetic member 1253, and the electromagnet 12231 is electrically connected to the control module 130. The slider 1251 is slidably disposed in the guiding groove 1223, the first magnetic member 1253 is disposed in the slider 1251, the electrical contact 1252 is disposed in the slider 1251 and faces the key hole 1221, and it should be noted that: the electrical contacts 1252 may selectively extend into the keyholes 1221 during sliding movement. Wherein the probe 125 can make electrical contact with the key 110, and further, signal transmission can be performed between the control module 130 of the lock cylinder 120 and the encryption module of the key 110 through the probe 125.

In some embodiments, the probe 125 may also be in transmission connection with a driving device, wherein the driving device may be a motor, etc., and the probe 125 and the driving device may be connected by a shaft transmission, a gear transmission, a chain transmission, a belt transmission, etc., and furthermore, the driving device may also be a cylinder, and the probe 125 may be directly connected with a push rod of the cylinder.

In some embodiments, two or more conductive elastic pieces may be disposed in the guide groove 1223, the conductive elastic pieces are electrically connected to the control module 130, the number of the conductive elastic pieces may be two or more, for example, the number of the conductive elastic pieces is two, wherein the two conductive elastic pieces are disposed opposite to each other and located at one end of the guide groove 1223 close to the key hole 1221, a gap is formed between the two conductive elastic pieces, when the electrical contact 1252 extends into the key hole 1221, the electrical contact 1252 may be partially located in the gap, that is, partially located between the two conductive elastic pieces, the electrical contact 1252 may abut against the two conductive elastic pieces, because the two conductive elastic pieces have certain elasticity, the two conductive elastic pieces may clamp the electrical contact 1252 under the action of a restoring force, so that the electrical contact 1252 is fixed between the two conductive elastic pieces. By providing the conductive elastic piece, when the electrical contact 1252 is electrically contacted with the key 110, the electrical contact 1252 can be clamped by the conductive elastic piece and electrically connected with the control module 130, and meanwhile, the electrical contact 1252 can be more stable in the whole process of electrically contacting with the key 110; during the process of pulling the key 110 out of the keyhole 1221, the key 110 first contacts the electrical contact 1252 and pushes the electrical contact 1252 out of the gap to retract the electrical contact 1252 to the guide groove 1223; in addition, the first magnetic member 1253 may also drive the electrical contact 1252 to slide back into the guiding groove 1223 under the attraction of the electromagnet 12231.

In some applications, when the electromagnet 12231 is in the energized state, the first magnetic member 1253 magnetically repels the electromagnet 12231, and the slider 1251 extends the electrical contact 1252 into the keyhole 1221 under the action of the electromagnet 12231; when the electromagnet 12231 is in the power-off state, there is no interaction between the first magnetic member 1253 and the electromagnet 12231, and the slider 1251 falls into the guide groove 1223.

The benefits of this arrangement: by arranging the electromagnet 12231 and the first magnetic member 1253, the slider 1251 selectively brings the electrical contact 1252 into the keyhole 1221 under the action of the first magnetic member 1253 and the electromagnet 12231, and in the whole sliding process, the slider 1251 is not easy to be jammed or jammed, and the like, and in addition, by adjusting the current passing through the electromagnet 12231, the magnetic field strength of the electromagnet 12231 can be changed, and when the magnetic field strength of the electromagnet 12231 is larger, the acting force of the electromagnet 12231 on the first magnetic member 1253 is larger, so that the sliding speed of the slider 1251 is larger, it can be understood that when the current in the electromagnet 12231 is larger, the electrical contact 1252 can rapidly extend into the keyhole 1221.

Referring to fig. 4, in the present embodiment, the door lock 100 further includes a transmission mechanism 170 and a latch (not shown in the figure), the transmission mechanism 170 is in transmission connection with the lock cylinder liner 122, wherein the transmission mechanism 170 is in transmission fit with the latch of the door lock 110. The transmission mechanism 170 may be configured as a rotary cam, and when the cylinder core 122 rotates, the rotary cam drives the latch bolt to extend out of the housing 121 or retract into the housing 121 during the rotation process.

For example, in some application environments, when the user rotates the cylinder liner 122 forward, the rotating cam drives the latch bolt to extend out of the housing 121 during the rotation process, so that the latch bolt extends into the latch hole of the door frame; when a user rotates the lock cylinder liner 122 in the reverse direction, the rotating cam drives the lock tongue to retract into the housing 121 in the rotating process, so that the lock tongue exits from the lock hole of the door frame.

In some embodiments, the transmission mechanism 170 may also be configured as a gear, chain, or other transmission structure.

In this embodiment, the lock cylinder 120 further includes a pressure sensor, which is disposed on the lock cylinder liner 122, electrically connected to the control module 130, and configured to detect whether the key 110 is inserted into the key hole 1221. In this embodiment, the pressure sensor may be disposed in the sliding slot 1213 and cooperate with the first telescopic portion 12323, when the key 110 is inserted, the first telescopic portion 12323 retracts into the sliding slot 1213, and the pressure sensor generates a corresponding electrical signal to be transmitted to the control module 130, and the control module 130 may control the electromagnet 12231 to be energized, so that the sliding block 1251 slides from the guiding slot 1223 toward the keyhole 1221, so that the probe 125 may be electrically contacted with the electrical contact on the key 110.

In some embodiments, whether the key is inserted into the keyhole 1221 may be detected by the probe 125, or whether the key 110 is inserted into the keyhole 1221 may be detected by other means, such as: the lock cylinder liner 122 may be provided with a reed switch, wherein the reed switch is electrically connected to the control module 130, and correspondingly, the key 110 may be provided with a magnetic element, and after the key 110 is inserted, two contacts of the reed switch are polarized under the action of a magnetic field, so that the two contacts attract each other and are contacted to generate a corresponding electrical signal. In addition, in some embodiments, the cylinder liner 122 may also be provided with a hall sensor, which may detect the magnetic field strength of a magnetic element carried on the key 110 and generate a corresponding electrical signal when the key 110 is inserted into the keyway 1221.

The pressure sensor may be provided to detect whether the key 110 is inserted into the key hole 1221, and when the key 110 is inserted into the key hole 1221, the pressure sensor may generate a corresponding electrical signal to transmit to the control module 130.

In this embodiment, the door lock 100 may further include a communication module (not shown), wherein the communication module is in signal connection with the control module 130 for establishing communication with the terminal. The terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted mobile terminal, a wearable device, a pedometer, and the like. The communication module may be connected to the control module 130 through a wire or wirelessly. The communication module may be used for communication between the terminal and the door lock 100, for example: the door lock 100 may send the relevant status information of the door lock 100 to the user terminal through the communication module, where the status information may be the unlocking status, the locking status, and the power of the door lock 100, and the user may also send a corresponding instruction to control the unlocking or locking of the door lock 100 through the terminal. The communication module can be a Bluetooth module, a zigbee module and the like.

In some embodiments, the door lock 100 may further include an alarm module and a voice module, wherein the alarm module and the voice module are electrically connected to the control module 130, wherein the alarm module may be used for safety monitoring of the door lock 100, such as: when the lock is opened by a lawbreaker, the alarm module can give an alarm; the user can control the door lock 100 to unlock or lock through the voice module.

In some embodiments, the door lock 100 may further include an interface device (not shown) electrically connected to the control module 130, wherein the interface device is used for human-computer interaction with a user, and the interface device may be provided with a keyboard or a touch screen for the user to input related instructions or information. In addition, the interface device may further include a fingerprint recognition module, a face recognition module, a voice recognition module, or an iris recognition module, which may be used for the door lock 100 to authenticate the user's identity or collect information.

In some embodiments, the door lock 100 may further include a communication interface, which may be electrically connected to the control module 130, wherein the communication interface may be used to establish a communication connection with a gateway, a router, or a server. Specifically, for example, the user may establish a connection with the terminal through the server, and the user may remotely communicate and control the door lock 100 through the control program of the terminal.

Referring to fig. 5, in the embodiment, the key 110 includes a handle 111, a key body 112, a protective shell 113, and an encryption module 114, where the encryption module 114 may be a chip with an encryption function, the key body 112 is rotatably connected to the handle 111, a groove 1111 is disposed on one side of the handle 111, and a shape of the groove 1111 is adapted to a structure of the key body 112. The key body 112 can be retracted into the recess 1111 by rotation. The protective shell 113 may be made of plastic, metal, or the like, the protective shell 113 is used to protect the encryption module 114, wherein the encryption module 114 is disposed at one end of the key body 112 close to the handle 111, and the protective shell 113 is disposed outside the encryption module, that is, the encryption module 114 is disposed in the protective shell 113. The encryption module 114 may store information related to the ID information and the key of the key 110, and it should be noted that the ID information of the key refers to information for the door lock 100 to verify the identity of the key 110, where each key 110 may correspond to a specific ID information.

The key body 112 can be recovered into the groove 1111 by the accommodating groove, so that the key body 112 can be protected and the key body 112 is prevented from being damaged by the outside.

In this embodiment, the key 110 further includes an electrical contact portion 115, wherein the encryption module 114 is disposed at an end of the key body 112 close to the key body 112, the electrical contact portion 115 is disposed at the key body 112 and is used for electrically contacting with the probes 125, and further, a sliding groove 1121 is disposed on a surface of the key body 112, wherein the sliding groove 1121 extends along a length direction of the key body 112. The electrical contact 115 is disposed in the sliding groove 1121 by disposing the electrical contact 115 in the sliding groove 1121. When the key 110 matched with the door lock 100 is inserted into the key hole 1221, the electrical contacts 1252 of the probes 125 can extend into the chutes 1121 and contact the electrical contacts 115, wherein the probes 125 are electrically coupled to the key 110.

In some embodiments, the electrical coupling means that the probe 125 is in electrical contact with the electrical contact 1252 to form a closed loop, and when the control module 130 detects that the voltage value or the current value between the electrical contacts 1252 is equal to a preset value, the control module 130 controls the locking mechanism 124 to unlock the cylinder liner 122. The preset value may be preset by a user or preset before leaving the factory.

In addition, in some embodiments, electrical coupling may also refer to inductive coupling or capacitive coupling, etc.

In addition, in the present embodiment, the key body 112 is provided with a tongue-shaped pattern 1123 and a pin groove 1122, wherein the tongue-shaped pattern 1123 and the pin groove 1122 are matched with a geometric position of the key hole 1221 of the plug liner 122, wherein the geometric position refers to a position area formed by a contact point when the plurality of pins 123 extend into the key hole 1121 and the plurality of pins 123 abut against the surface of the key body 112. It will be appreciated that when the key 110 is inserted into the keyway 1221, the tongue 1123 and the pin slot 1122 are geometrically mated, and the electrical contacts 115 of the key 110 are electrically coupled to the plurality of probes 125, the locking mechanism 124 decouples the lock cylinder inner container 122.

The working principle of the door lock 100 described above is as follows:

when the key 110 is not inserted into the keyhole 1221, the locking mechanism 124 restricts the rotation of the cylinder liner 122, so that the cylinder liner 122 cannot rotate, and when the valid key 110 is inserted into the keyhole 1221, the door lock 100 detects that the key 110 is inserted; the control module 130 controls the plurality of probes 125 to extend into the keyhole 1221 such that the plurality of probes 125 are electrically connected to the electrical contacts 115 of the key 110; when the probes 125 are electrically coupled to the key 110, the control module 130 receives the electrical coupling signal and determines whether the electrical coupling information matches the predetermined information, if so, the key 110 may send verification information to the door lock 100 through the probes 125, where the verification information may be a ciphertext generated by the door lock 100 according to information such as ID information and a key of the key 110 or according to information such as ID information and a key. The door lock 100 receives the verification information and judges whether the verification information is matched with the information stored or generated by the door lock 100, if so, the control module 130 of the door lock 100 controls the locking mechanism 124 to release the limitation on the lock cylinder liner 122, and meanwhile, if the marble groove 1122 of the key 110 is matched with the marble 123 of the door lock 100, a user can rotate the lock cylinder liner 122 to enable the lock cylinder liner 122 to drive the lock tongue to contract, so that the lock tongue is far away from the lock tongue hole to realize unlocking; if the verification information does not match the information stored or generated by the door lock 100, the door lock 100 controls the locking mechanism 124 to continue to maintain the limited state of the lock cylinder liner 122, so that the lock cylinder liner 122 cannot be rotated to unlock the door lock, and in addition, the door lock 100 can give an alarm and simultaneously send prompt information to the user terminal.

In the door lock 100 provided in this embodiment, by providing the plurality of pins 125 and the plurality of pins 123, when the key 110 is inserted into the key cylinder 120 to unlock, double authentication is required, and both the plurality of pins 123 and the pin slot 1122 of the key 110 are required to be matched, and at the same time, the pin 125 and the key 110 are required to be electrically coupled, and when both are satisfied, the control module 130 controls the locking mechanism 124 to release the restriction on the key cylinder liner 122, thereby improving the safety of the door lock 100.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A door lock, comprising:

a key;

the lock core comprises a shell, a lock core liner, a plurality of marbles, a locking mechanism and a plurality of probes, wherein the lock core liner arranged in the shell is provided with a key hole, and the plurality of marbles are arranged in the shell in a one-to-one correspondence manner and are matched with teeth on any side of a key;

the locking mechanism is arranged in the shell and is used for limiting the rotation of the lock cylinder liner;

and the control module is respectively electrically connected with the probes and is used for controlling the locking mechanism to release the limitation on the lock cylinder liner when the probes are electrically coupled with the key.

2. The door lock of claim 1, wherein a sliding groove is formed in the housing and communicates with the key hole, and the plurality of pins are slidably disposed in the sliding groove and selectively extend into or retract from the key hole.

3. The door lock of claim 2, wherein the lock cylinder liner further comprises a sliding block, a first magnetic member and an electrical contact, the lock cylinder liner is provided with a guide groove communicated with the key hole, an electromagnet is arranged in the guide groove, the electromagnet is matched with the first magnetic member and the electrical contact, the electromagnet is electrically connected with the control module, the sliding block is slidably arranged in the guide groove, the first magnetic member is arranged in the sliding block, and the electrical contact is arranged in the sliding block and faces the key hole.

4. The door lock of claim 1, wherein the locking mechanism includes a tongue blocking portion, the housing is provided with a tongue blocking sliding groove, the lock cylinder liner is provided with a locking hole matched with the tongue blocking sliding groove, and the tongue blocking portion is slidably disposed in the tongue blocking sliding groove and selectively extends into or retracts from the locking hole during sliding.

5. The door lock according to claim 4, wherein a tongue-blocking electromagnet is arranged in the locking hole, the tongue-blocking electromagnet is electrically connected with the control module, and the tongue-blocking portion is provided with a second magnetic member which drives the tongue-blocking portion to extend into the locking hole under the attraction of the tongue-blocking electromagnet.

6. The door lock of claim 1, wherein the plurality of probes are disposed on the key cylinder and electrically connected to the control module, and are configured to detect whether the key is inserted into the key hole.

7. The door lock of claim 6, wherein the lock cylinder further comprises a pressure sensor electrically connected to the control module.

8. The door lock of any one of claims 1-7, wherein the key comprises an electrical contact and a cryptographic module, the electrical contact being electrically connected to the cryptographic module and adapted to make electrical contact with the plurality of probes.

9. The door lock of claim 8, wherein the key comprises a handle, a key body, and a protective shell, the handle is provided with a groove, the key body is rotatably retracted into the groove of the handle, the protective shell is disposed outside the encryption module, the key body is provided with a tongue-shaped pattern and a pin groove, and the tongue-shaped pattern and the pin groove are matched with the geometric position of the key hole of the lock cylinder liner.

10. The door lock according to any of claims 1-7, further comprising an interface device for human-computer interaction, said interface device being electrically connected to said control module.

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