CN111877870A - Lock cylinder, key and unlocking method for lock - Google Patents

Abstract

Embodiments of the present invention relate to a lock cylinder, a key and a method for unlocking a lock. When the key is inserted into the lock cylinder, the SIM card in the SIM card placement part is electrically connected to the control module in the lock cylinder, and the control module is connected to the wireless communication network and uses its configured IMEI number and the IMSI number of the SIM card to communicate to the wireless communication network Initiate a registration request to check the matching relationship between the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module performs the unlocking operation to unlock the lock, and when the IMEI number does not match the IMSI number, the control module does not perform the unlocking operation. .

Description

Lock cylinder, key and method of unlocking

technical field

The embodiments of the present invention relate to the technical field of smart locks, and in particular, to a lock cylinder, a key and a method for unlocking a lock.

Background technique

Existing smart locks are mainly unlocked by receiving fingerprint or password input through the control panel. In the case where the smart lock is associated with the smart home, the user can also operate the smart home by inputting a command code in the smart lock. In some solutions, unlocking devices such as access control cards and smart phones are connected to the lock through a contactless wireless connection and complete data interaction, thereby realizing operations such as unlocking or controlling smart homes.

Existing smart locks usually use a key that stores replaceable verification information to cooperate with the lock cylinder, so such smart locks need to be connected to the network before verification.

In addition, for some special requirements, such as functions such as alarm, the existing smart locks can basically only perform passive alarms. Specifically, for example, the existing smart lock issues an alarm when the structure of the lock body is damaged or the lock body vibrates. This alarm method can only be aimed at the situation where someone destroys the smart lock. Although smart locks also have active alarm methods, existing smart locks usually need to identify specific input conditions, such as specific passwords, command codes, fingerprints, and faces. This obviously does not apply to emergencies such as when the user discovers that someone is following, or is under duress. At this time, it is obviously inconvenient for the user to use methods such as entering a password to call the police, because actions that are obviously unrelated to unlocking will cause the perpetrator to be alert, thereby increasing the risk of the user being victimized.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a lock cylinder, a key and a method for unlocking a lock for the above-mentioned defects in the prior art, so as to solve the inconvenience of unlocking and the inconvenience of using other methods to alarm in emergency situations technical issues.

According to one aspect of the embodiments of the present invention, the embodiments of the present invention provide a key, the key comprising: a handle part; an insertion part connected with the handle part and insertable into a lock cylinder of a corresponding lock; and a SIM A card placement portion provided in the handle portion or the insertion portion. When the key is inserted into the lock cylinder, the SIM card in the SIM card placement portion is electrically connected to the control module in the lock cylinder, the control module is connected to the wireless communication network and uses its configured IMEI number and all The IMSI number of the SIM card initiates a registration request to the wireless communication network to check the matching relationship between the IMEI number and the IMSI number, and when the IMEI number matches the IMSI number, the control module performs an unlocking operation to The lock is opened, and the control module does not perform an unlocking operation when the IMEI number does not match the IMSI number.

According to an aspect of the embodiments of the present invention, an embodiment of the present invention provides a lock cylinder for a lock, wherein the lock cylinder includes: a control module, which is used for connecting to a wireless communication network and controlling the lock The lock body, the control module is configured with an IMEI number, and the IMEI number is matched with the IMSI number of one or more SIM cards; and a connection module, after the key is inserted into the lock cylinder, the The SIM card in the key is electrically connected to the control module. When the key is inserted into the lock cylinder, the control module connects to the wireless communication network and initiates a registration request to the wireless communication network using the IMEI number and the IMSI number to check the difference between the IMEI number and the IMSI number Matching relationship, when the IMEI number matches the IMSI number, the control module performs an unlocking operation to open the lock, and when the IMEI number does not match the IMSI number, the control module does not perform Unlock operation.

According to an aspect of the embodiment of the present invention, the embodiment of the present invention provides a method for unlocking, comprising: inserting a key provided with a SIM card into a lock cylinder of the lock, wherein the lock cylinder includes a control module and a connection module , the control module is used to connect to the wireless communication network and control the lock body of the lock, the control module is configured with an IMEI number, and the IMEI number matches the IMSI number of one or more SIM cards, and the connection The module electrically connects the SIM card provided in the key with the control module after the key is inserted into the lock cylinder, and when the key is inserted into the lock cylinder, the wireless communication network is connected through the control module and Using the IMEI number and the IMSI number to initiate a registration request to the wireless communication network to check the matching relationship between the IMEI number and the IMSI number, when the IMEI number matches the IMSI number, the control module An unlocking operation is performed to open the lock, and the control module does not perform an unlocking operation when the IMEI number does not match the IMSI number.

The beneficial effects of the embodiments of the present invention are that the lock can be unlocked quickly and conveniently, and the alarm method can be integrated into the daily unlocking action, so that the alarm can be realized without causing others to be alert, so that the alarm action is concealed and the operation is convenient. .

Description of drawings

Fig. 1 is the front view of the key of the embodiment of the present invention;

Fig. 2 is the back view of the key of the embodiment of the present invention;

Fig. 3 is the sectional view of the key of the embodiment of the present invention cut along the line A-A in Fig. 1;

Fig. 4 is the bottom view of the key of the embodiment of the present invention;

Fig. 5 is the top view of the key of the embodiment of the present invention;

6 is a cross-sectional view of a lock cylinder according to an embodiment of the present invention;

7 is a perspective view of a lock cylinder according to an embodiment of the present invention;

8 is a cross-sectional view of the lock cylinder according to the embodiment of the present invention taken along the line D-D in FIG. 6;

9 is a cross-sectional view of the lock cylinder according to the embodiment of the present invention taken along the line E-E in FIG. 6;

FIG. 10 is a cross-sectional view of the lock cylinder according to the embodiment of the present invention taken along the line F-F in FIG. 6 .

Reference number:

1. Key, 10, Insertion part, 11, Handle part, 12, SIM card placement part, 101, Contacts of insertion part, 1011-1016, SIM card connection contacts, 1017-1018, Short contact point, 1019, Key The connecting line, 1021-1023, positioning slot, 1024, key teeth;

2, lock cylinder, 20, control module, 21, connection module, 22, non-rotatable part, 23, rotatable part, 2121-2128, connection contacts of lock cylinder, 211-218, connection line of lock cylinder, 234, Functional Conductor, 2341, Recess of Functional Conductor, 2371-2378, Conductive Ring, 2281-2283, Connection Node, 22811-22812/22821-22822/22831-22832, Node Port, 228111-228121, Positioning Structure, 24, Spring , 251-258, the mechanical lock tongue, 2511, the first part of the mechanical lock tongue, 2512, the second part of the mechanical lock tongue, S, the contact surface between the first part of the mechanical lock tongue and the second part, 235, the positioning strip , 201, output bus, 202, feedback and input bus, D, lock body device.

Detailed ways

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as specific system structures, interfaces, techniques, etc., in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

It should be noted that, for ease of understanding, it is assumed that the lock hole of the lock cylinder described in the following embodiments is arranged in a vertical posture when the key is not inserted, so that the key is also placed in the same vertical posture. Therefore, the directions of "upper" or "top", "lower" or "bottom" mentioned hereinafter refer to the state of the vertical arrangement, respectively. When in use, the positional relationship between the components is subject to the actual orientation.

key

As shown in FIGS. 1 to 5 , an embodiment of the present invention provides a key 1 , which includes an insertion portion 10 , a handle portion 11 and a SIM card placement portion 12 . The insertion portion 10 is connected to the handle portion 11 . The insertion part 10 can be inserted into the lock cylinder of the corresponding lock, for example, into the lock cylinder 2 in the embodiment of the present invention. When the key 1 is inserted into the lock cylinder 2 , the SIM card (Subscriber Identity Module) in the SIM card placement portion 12 is electrically connected to the control module 20 in the lock cylinder 2 . The control module 20 connects to the wireless communication network and initiates a registration request to the wireless communication network using its configured IMEI number and the IMSI number of the SIM card to check the matching relationship between the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to unlock the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation. According to the present invention, the key with the above-mentioned structure can be unlocked quickly and conveniently.

On the mobile communication network, the IMEI number of the mobile communication network terminal on the lock cylinder is bound with the IMSI number of the SIM card that can be applied to the lock cylinder, that is, only the limited SIM card can be connected to the mobile communication network through the lock cylinder. connect. When the lock cylinder is connected with the mobile communication network, the lock body is automatically controlled to unlock. Therefore, it can be unlocked without turning the lock cylinder.

In one embodiment, when the IMEI number matches the IMSI number and the key 1 is rotated, the control module 20 performs an auxiliary function. In one embodiment, the auxiliary function includes one or a combination of the following functions: an alarm function, an information sending function, and a function of controlling indoor equipment. For example, auxiliary functions may include: alarm, report safety, switch lights, switch curtains, and the like.

In one embodiment, the insertion portion 10 is provided with a plurality of contacts, and any two contacts among the plurality of contacts constitute a first short contact point and a second short contact point that are short-circuited with each other. In the example shown in FIG. 3, the contacts 1017 and 1018 constitute a first short contact point 1017 and a second short contact point 1018, respectively. The first short contact point 1017 and the second short contact point 1018 can be respectively electrically connected with the corresponding contacts of the lock cylinder 2 . Therefore, when the key is inserted into the matched lock cylinder, the control module of the lock cylinder turns off the airplane mode according to the short circuit and connects to the wireless communication network. Since the keys corresponding to different lock cylinders are generally different from each other, the short contact points are not limited to the first short contact point 1017 and the second short contact point 1018 being shorted to each other. In other words, the first short contact point and the second short contact point may be, for example, any two of the contacts 1011-1018. Therefore, the present invention can further avoid the behavior of maliciously copying the key and the behavior of using other keys to try to unlock the lock.

In one embodiment, the key may also not include short contacts. In this case, the lock cylinder will periodically attempt to connect to the network.

In one embodiment, one or more pairs of contacts that are short-circuited to each other are disposed among the plurality of contacts of the insertion portion 10 . When all the shorted contacts are electrically connected to the corresponding corresponding contacts of the lock cylinder 2, the control module 20 will turn off the airplane mode according to the short circuit and connect to the wireless communication network. The present invention can further avoid the behavior of malicious duplication of keys and the behavior of using other keys to try to unlock by setting up multiple pairs of contacts that are inserted and short-circuited with each other.

In one embodiment, a plurality of contacts 1011 - 1018 are arranged on the insertion portion 10 along the direction in which the key 1 is inserted into the lock cylinder 2 . In Figures 3 and 4, a plurality of contacts 1011-1018 are arranged on the lower part of the key.

In one embodiment, the insertion portion 10 is provided with a plurality of SIM card connection contacts 1011-1016 arranged randomly, and each SIM card connection contact is respectively connected to a corresponding pin of the SIM card. FIG. 3 only shows the case where the SIM card connection contacts 1011-1016 are connected to the pins of the SIM in sequence. Since the general correspondence between keys corresponding to different lock cylinders is different from each other, the present invention can avoid malicious duplication of keys by randomly arranging the SIM card connection contacts of different keys that are connected to the SIM card pins. And the behavior of trying to open a lock with another key.

In one embodiment, the number of SIM card connection contacts is at least 4, so as to adapt to various existing SIM cards. In the embodiment shown in FIG. 3 , there are six SIM card connection contacts.

In one embodiment, a plurality of contacts on the insertion portion 10 are arranged along the direction in which the key 1 is inserted into the lock cylinder 2, and the plurality of contacts are provided with interfering contacts that are not electrically connected to any contacts or the SIM card. Setting up interfering contacts can avoid malicious duplication of keys and attempts to unlock with other keys.

In one embodiment, the middle of the contacts 1101-1018 is a conductive part, and the outer parts of the contacts 1101-1018 are made of insulating material to prevent short circuit between them.

In one embodiment, as shown in FIG. 3 , the SIM card placement portion 12 is a card slot provided on the handle portion 11 . The SIM card is inserted into the key through this, and the insertion and removal of the SIM card can be realized with the help of a card tray commonly used in existing smart phones.

In one embodiment, the insertion portion 10 is provided with an insertion portion positioning structure to position the insertion portion 10 when the insertion portion 10 is inserted into the lock cylinder 2 . In one embodiment, the positioning structure of the insertion portion is provided with at least one positioning groove 1021-1023. As shown in FIGS. 1 to 2 , the positioning grooves may be two positioning grooves 1021 and 1022 on the front and one positioning groove 1023 on the back.

In one embodiment, the insertion portion 10 is provided with key teeth 1024 to cooperate with the mechanical lock tongue of the lock cylinder 2 to realize a conventional unlocking mechanism.

lock cylinder

As shown in FIG. 6 to FIG. 10 , an embodiment of the present invention provides a lock cylinder 2 for a lock. The lock cylinder 2 includes a control module 20 and a connection module 21 . The control module 20 is used to connect to the wireless communication network and to control the lock body of the lock. The control module 20 is configured with an IMEI number, where the IMEI number matches the IMSI number of one or more SIM cards. The connection module 2 electrically connects the SIM provided in the key with the control module 20 after the key is inserted into the lock cylinder. When the key is inserted into the lock cylinder 2, for example, when the key 1 is inserted into the lock cylinder 2, the control module 20 connects to the wireless communication network and uses the IMEI number and the IMSI number to initiate a registration request to the wireless communication network to check the matching relationship between the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to unlock the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation. According to the present invention, the lock cylinder with the above-mentioned structure can be unlocked quickly and conveniently.

In one embodiment, the connection module 21 is electrically connected to the control module 20 through the connection lines 211-218. Among the connection lines of the connection module 21 , the connection lines 217 and 218 are respectively the first short-circuit line and the second short-circuit line, which form a short-circuit unit. The first short-circuit connection line 217 and the second short-circuit connection line 218 can be respectively electrically connected to the first short-circuit contact point 1017 and the second short-circuit contact point 1018 which are short-circuited with each other on the key 1 . When no key is inserted into the lock cylinder 2 or a key that does not match the lock cylinder 2 is inserted into the lock cylinder 2, the first short circuit 217 and the second short circuit 218 are in a disconnected state, and the control module 20 is set to the airplane mode to disconnect Open the connection to the wireless communication network. When a key (eg, key 1 ) matching the lock cylinder 2 is inserted into the lock cylinder 2 , the first short-circuit connection line 217 and the second short-circuit connection line 218 are electrically connected through the first short contact point and the second short contact point , the control module 20 turns off the airplane mode and connects to the wireless communication network.

In one embodiment, the connection module 21 includes one or more shorting units. Multiple short-circuit units can be set so that when one or several of them are short-circuited, the control module 20 turns off the airplane mode, thereby adapting to multiple keys and improving security.

In other embodiments, the control module 20 is configured to determine whether there is a short circuit in the connection line with the connection module 21 . Therefore, in other embodiments, the connection module 21 may not be provided with a specific short-circuit connection line. In this case, the control module 20 may preset (eg, set by software of an external device) one or more pairs of arbitrarily set connection lines as short-circuit connection lines. Thus, the control module 20 can set the key corresponding to the lock cylinder 2 .

In one embodiment, the lock cylinder may also not include the function of turning off the airplane mode through a short circuit. In this case, the lock cylinder will periodically attempt to connect to the network.

In one embodiment, the lock cylinder 2 includes a non-rotatable part 22 and a rotatable part 23 . The non-rotatable portion 22 is axially surrounded on the outside of the rotatable portion 23 in the direction in which the key 1 is inserted (the direction from right to left in FIG. 6 , that is, the axial direction of the lock cylinder). When the key 1 is inserted into the lock cylinder, the key 1 is located in the lock hole in the rotatable part 23 .

In one embodiment, the connection module 21 also includes connection contacts 2121-2128 and conductive rings 2371-2378. The connection contacts 2121 - 2128 are provided on the rotatable part 23 and rotate together with the rotatable part 23 . Conductive rings 2371 - 2378 are secured to the non-rotatable portion 22 . The inner sides of the conductive rings 2371-2378 are slidably connected with the connection contacts 2121-2128, respectively, and the outer sides of the conductive rings 2371-2378 are connected to the connection lines 211-218. The non-rotatable portion 22 and the rotatable portion 23 are insulated from each other except for the conductive rings 2371-2378. Thereby, the connection between the key 1 and the control module 20 can be ensured when the rotatable part 23 is rotated.

In one embodiment, the connection contacts 2121-2128 are bidirectional elastic bumps arranged along the insertion direction of the key 1 . As shown in Fig. 6 and Fig. 7 , the connecting contacts 2121-2128 are arranged just below the lock cylinder 2, the connecting contacts 2121-2128 upwardly correspond to the connecting contacts 1011-1018 of the key 1 one-to-one, and downwardly correspond to the conducting ring 2371-2378 one-to-one correspondence.

In one embodiment, the conductive rings 2371-2378 are metal conductive rings.

In one embodiment, the lock cylinder 2 includes a rotatable portion and a functional conductor 234 . The functional conductor 234 extends from the rotatable part 23 and is offset from the rotation center of the rotatable part 23 . The connection module 21 is provided with at least one connection node connected to the control module 20 . As the rotatable part 23 rotates, the functional conductor 234 can be connected with the control module 20 via the connection node, thereby performing auxiliary functions by the control module 20 . In one embodiment, the connection module 21 is provided with a plurality of connection nodes arranged along the same circumference, so that when the rotatable part 23 is rotated, the functional conductor 234 can be connected with any of the connection nodes. In the example shown in FIG. 6, the connection module 21 is provided with 6 connection nodes.

In one embodiment, the auxiliary function includes one or a combination of the following functions: an alarm function, an information sending function, and a function of controlling indoor equipment. For example, auxiliary functions may include: alarm, report safety, switch lights, switch curtains, and the like.

In one embodiment, the connection nodes respectively comprise pairs of node ports arranged oppositely. A functional conductor 234 can be rotated between each paired node port to short the paired node ports. When the functional conductor 234 is not rotated between the paired node ports, the paired node ports are in an open state. In the example shown in FIGS. 8 and 9, the paired node ports include node ports 22811-22812, node ports 22821-22822, and node ports 22831-22832.

In one embodiment, at least one node port of the pair of node ports is provided with a positioning structure. When the rotatable portion 23 is rotated with the key, the functional conductor 234 can be positioned on the positioning structure of the pair of node ports. In the examples shown in FIG. 8 and FIG. 9 , taking the connection node 2281 as an example, the node ports 22811-22812 are respectively provided with positioning structures 228111 and 228121.

In one embodiment, the positioning structure and the functional conductor 234 are positioned through a form fit. In one embodiment, the positioning structures are protrusions/recesses, and are positioned with the corresponding recesses/protrusions of the functional conductor 234 through form fit. In other words, the protrusions of the node ports and the corresponding recesses of the functional conductors 234 are positioned by form fit, or/and the recesses of the node ports and the corresponding protrusions of the functional conductors 234 are positioned by form fit.

In one embodiment, triggering of the auxiliary function requires that the function conductor 234 remains connected to the connection node for at least 500 ms. Thus, according to the position reached by the rotation of the lock cylinder 2, the control module 20 can determine the next action.

In one embodiment, the lock cylinder 2 is provided with one or more mechanical lock bolts 251-258. Each mechanical deadbolt 251-258 includes a first portion and a second portion. Taking the mechanical lock tongue 251 as an example, it includes a first part 2511 and a second part 2512 . The length of the first part is randomly set. One end of the first part is connected to the non-rotatable part 22 by a spring 24 and partially extends into the rotatable part. The end of the first part opposite the end connected to the non-rotatable part 22 is in contact with the second part. The second part extends completely into the rotatable part 23 . When no key is inserted into the lock cylinder 2, the end of the second part opposite to the contact end of the first part abuts on the rotatable part. When the key matching the lock cylinder 2 is inserted into the lock cylinder 2 , the contact surface S between the first part and the second part is located on the outer circumferential surface of the rotatable part 23 . In one embodiment, the contact surfaces S of both the first part and the second part are covered with insulating material.

In one embodiment, the control module 20 includes a built-in chip of the IoT terminal and a smart lock control chip.

In one embodiment, a positioning bar 235 is provided in the lock cylinder 2 . In the example shown in FIG. 10 , three positioning bars 235 are provided in the rotatable part 23 . to correspond with the corresponding positioning grooves of the key.

In one embodiment, the control module 20 is connected to the lock body D and/or other external devices through the output bus 201 and the feedback and input bus 202 . In one embodiment, the control module 20 is wirelessly connected to an external device.

How to unlock

The embodiment of the present invention provides a method for unlocking. Specifically, the method unlocks by inserting a key 1 provided with a SIM card into the lock cylinder 2 of the lock. The lock cylinder 2 includes a control module 20 and a connection module 21 . The control module 20 is used to connect to the wireless communication network and to control the lock body of the lock. The control module 20 is configured with an IMEI number that matches the IMSI number of one or more SIM cards. The connection module 21 electrically connects the SIM card provided in the key 1 with the control module 20 after the key 1 is inserted into the lock cylinder 2 . When the key 1 is inserted into the lock cylinder 2, the control module 20 connects to the wireless communication network and initiates a registration request to the wireless communication network using the IMEI number and the IMSI number to check the matching relationship between the IMEI number and the IMSI number. When the IMEI number matches the IMSI number, the control module 20 performs an unlocking operation to unlock the lock. When the IMEI number does not match the IMSI number, the control module 20 does not perform the unlocking operation.

In one embodiment, the lock cylinder 2 includes a rotatable part 23 and a functional conductor 234 extending from the rotatable part 23, and the functional conductor is offset from the rotation center of the rotatable part. The connection module 21 is provided with at least one connection node connected to the control module 20 . The method also includes connecting the functional conductor 234 with the control module 20 via the connection node as the rotatable portion 23 is rotated, thereby performing an auxiliary function by the control module 20 .

In one embodiment, after connecting to the wireless communication network, the control module 20 waits for at least 500ms before performing an action, so that the function conductor 234 rotates to one of the connection nodes to determine whether to perform unlocking and/or auxiliary functions.

In one embodiment, the auxiliary function includes one or a combination of the following functions: an alarm function, which sends an emergency short message to a preset terminal; an information sending function, which sends information to a preset terminal; function to send control signals to indoor equipment. For example, auxiliary functions may include: alarm, report safety, switch lights, switch curtains, and the like.

In one embodiment, after the control module 20 is connected to the wireless communication network, the control module 20 waits for at least 500 ms after the rotatable part 23 stops rotating before performing the next action.

specific example

Hereinafter, embodiments of the present invention will be described by way of specific examples. This example includes a key 1 and a cylinder 2 for the lock, the key 1 corresponding to the cylinder 2 .

As shown in FIGS. 1 to 5 , the key 1 includes an insertion portion 10 , a handle portion 11 and a SIM card placement portion 12 . The SIM card placement portion 12 is a card slot for a SIM card, and is arranged in the handle portion 11 . Eight contacts 1011 to 1018 are sequentially provided on the lower surface of the insertion portion 10 along the insertion direction of the key 1 . The contacts 1011-1018 include: contacts 1011-1016 which are sequentially connected with pins of the SIM card, and a first short contact point 1017 and a second short contact point 1018 which are short-circuited with each other. The SIM card is connected to the contacts 1011-1016 through a key connection line 1019 provided in the key. The middle of the contacts 1101-1018 is the conductive part, and the outer part is made of insulating material. The insertion part 10 is provided with two positioning grooves 1021 and 1022 on the front and one positioning groove 1023 on the back. The insertion portion 10 is provided with key teeth. As shown in FIGS. 6 to 10 , the mechanical part of the lock cylinder 2 includes a non-rotatable part 22 and a rotatable part 23 . The circuit part of the lock cylinder 2 includes a control module 20 and a connection module 21 . In the example, the control module 20 is arranged in the non-rotatable part 22 , and the majority of the connection module 21 is also arranged in the non-rotatable part 22 . The connection module 21 includes connection contacts 2121-2128, conductive rings 2371-2378 and connection lines 211-218. The connection contacts 2121-2128 and the conducting rings 2371-2378 are provided on the rotatable part 23 . The connection contacts 2121 - 2128 rotate together with the rotatable part 23 . The connection contacts 2121-2128 are provided as bidirectional elastic bumps arranged in sequence below the rotatable part 23 along the direction in which the key 1 is inserted when the key 1 is not inserted into the lock cylinder 2. The inner sides of the conductive rings 2371-2378 correspond to the connection contacts 2121-2128 in one-to-one correspondence and are slidably connected, and the outer sides of the conductive rings 2371-2378 are connected to the connection lines 211-218. The non-rotatable portion 22 and the rotatable portion 23 are insulated from each other except for the conductive rings 2371-2378.

The lock cylinder 2 extends from the rotatable part 23 and is offset from the functional conductor 234 of the rotation center of the rotatable part 23 . As shown in FIG. 6, the functional conductor 234 extends from the surface of the rotatable portion 23 away from the key insertion direction. The connection module 21 is provided with connection nodes 2281 - 2283 which are connected to the control module 20 and are arranged along the same circumference. The connection nodes respectively comprise pairs of node ports 22811-22812, 22821-22822 and 22831-22832 arranged oppositely. As shown in FIG. 8 and FIG. 9 , taking the connection node 2281 as an example, the node ports 22811-22812 are respectively provided with positioning structures 228111 and 228121. The positioning structure is a protruding portion, and the functional conductor 234 is provided with a concave portion that is shaped to fit with the protruding portion.

The lock cylinder 2 is provided with one or more mechanical deadbolts 251-258. Each mechanical deadbolt 251-258 includes a first portion and a second portion. Taking the mechanical lock tongue 251 as an example, it includes a first part 2511 and a second part 2512 . The length of the first part is randomly set. The total length of each mechanical lock tongue 251-258 is the same. One end of the first part is connected to the non-rotatable part 22 by a spring 24 and partially extends into the rotatable part. The end of the first part opposite the end connected to the non-rotatable part 22 is in contact with the second part. The second part extends completely into the rotatable part 23 . When no key is inserted into the lock cylinder 2, the end of the second part opposite to the contact end of the first part abuts on the rotatable part. When the key matching the lock cylinder 2 is inserted into the lock cylinder 2 , the contact surface S between the first part and the second part is located on the outer circumferential surface of the rotatable part 23 . In one embodiment, the contact surfaces S of both the first part and the second part are covered with insulating material.

The control module 20 includes a built-in chip of the Internet of Things terminal and a smart lock control chip. The control module 20 is connected to the lock body D and other external devices through an output bus 201 and a feedback and input bus 202 .

A positioning bar 235 is provided in the lock cylinder 2 . As shown in FIG. 10 , three positioning bars 235 are provided in the rotatable part 23 , corresponding to the two positioning grooves on the front and one positioning groove on the back of the key 1 respectively.

The reader should understand that in the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., is intended to incorporate the embodiment or example. A particular feature, structure, or characteristic described is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or changes within the technical scope disclosed by the present invention. Replacement, these modifications or replacements should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (12)

1. A key, characterized in that the key comprises: handle part; an insertion portion connected to the handle portion and insertable into the cylinder of the corresponding lock; and The SIM card placement part is arranged in the handle part or the insertion part, Wherein, when the key is inserted into the lock cylinder, the SIM card in the SIM card placement part is electrically connected with the control module in the lock cylinder, and the control module is connected to the wireless communication network and uses the configured IMEI number. and the IMSI number of the SIM card initiates a registration request to the wireless communication network to check the matching relationship of the IMEI number and the IMSI number, when the IMEI number matches the IMSI number, the control module performs an unlocking operation to unlock the lock, and When the IMEI number does not match the IMSI number, the control module does not perform an unlocking operation. 2. The key of claim 1, wherein The control module performs an auxiliary function when the IMEI number matches the IMSI number and the key is rotated. 3 . The key according to claim 1 , wherein the insertion portion is provided with a plurality of contacts, and any two of the plurality of contacts constitute the first short contact and The second shortest contact point, The first short contact point and the second short contact point can be respectively electrically connected with the corresponding contacts of the lock cylinder. 4. The key of claim 1, wherein The insertion part is provided with a plurality of SIM card connection contacts arranged randomly, and each of the SIM card connection contacts is respectively connected with the corresponding pin of the SIM card. 5. A lock cylinder for a lock, wherein the lock cylinder comprises: a control module for connecting to a wireless communication network and for controlling the lock body of the lock, the control module is configured with an IMEI number that matches the IMSI number of one or more SIM cards; and a connection module, which electrically connects the SIM card provided in the key with the control module after the key is inserted into the lock cylinder, Wherein, when the key is inserted into the lock cylinder, the control module connects to the wireless communication network and uses the IMEI number and the IMSI number to initiate a registration request to the wireless communication network to check the IMEI number and the IMSI number number matching relationship, when the IMEI number matches the IMSI number, the control module performs an unlocking operation to unlock the lock, and When the IMEI number does not match the IMSI number, the control module does not perform an unlocking operation. 6. The lock cylinder according to claim 5, characterized in that, the lock cylinder includes a rotatable part and a functional conductor extending from the rotatable part, and the functional conductor is offset from the rotation center of the rotatable part; the connection module is provided with at least one connection node connected to the control module, As the rotatable part rotates, the functional conductor can be connected to the control module via the connection node, thereby performing auxiliary functions by the control module. 7. The lock cylinder according to claim 6, wherein, The connection module is provided with a plurality of the connection nodes arranged along the same circumference, so that when the rotatable part is rotated, the functional conductor can be connected with any of the connection nodes. 8. The lock cylinder according to claim 6, characterized in that, The auxiliary function includes one or a combination of the following functions: Alarm function, information sending function, and function of controlling indoor equipment. 9. The lock cylinder according to claim 6, wherein The control module includes a built-in chip of the Internet of Things terminal and an intelligent lock control chip. 10. A method of unlocking, wherein the method comprises: Insert the key provided with the SIM card into the lock cylinder of the lock, wherein the lock cylinder includes a control module and a connection module, the control module is used for connecting to a wireless communication network and controlling the lock body of the lock, the The control module is configured with an IMEI number, the IMEI number is matched with the IMSI number of one or more SIM cards, and the connection module makes the SIM card provided in the key match all the SIM cards after the key is inserted into the lock cylinder. The control module is electrically connected, When the key is inserted into the lock cylinder, connect to the wireless communication network through the control module and initiate a registration request to the wireless communication network using the IMEI number and the IMSI number to check the IMEI number and the IMSI number matching relationship, the control module performs an unlocking operation to unlock the lock when the IMEI number matches the IMSI number, and When the IMEI number does not match the IMSI number, the control module does not perform an unlocking operation. 11. The method of claim 10, wherein: the lock cylinder includes a rotatable part and a functional conductor extending from the rotatable part, and the functional conductor is offset from the rotation center of the rotatable part; the connection module is provided with at least one connection node connected to the control module, The method further includes connecting the functional conductor with the control module via the connection node as the rotatable portion rotates, thereby performing an auxiliary function by the control module. 12. The method of claim 11, wherein The auxiliary functions performed by the control module include one or a combination of the following functions: Alarm function, send emergency text messages to preset terminals, Information sending function, sending information to preset terminals, and Control the function of indoor equipment and send control signals to indoor equipment.

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