Dual-authentication passive intelligent lock cylinder and key

Abstract

The utility model provides a dual authentication passive intelligent lock cylinder and a key, the lock cylinder is arranged in a lock cylinder shell, a protective shell below the lock cylinder shell and the lower surface of the lock cylinder shell form a cavity, a control circuit and a pin column capable of vertically shuttling are arranged in the cavity, and the end part of the pin column penetrates through the lock cylinder shell and is inserted into a pin hole at the lower end of the lock cylinder; a charging port is formed in the tail end of a key hole in the lock cylinder. A Type-C charging end is arranged at the top end of a tooth part of the intelligent key, a fingerprint recognition module is arranged on one side of a handle part of the intelligent key, the intelligent key is inserted into a key hole in the middle of the lock cylinder and supplies power to a control circuit, and after dual authentication is passed, a pin column is driven to shuttle downwards for unlocking. And the user identity information authentication means is weak and not real-time enough.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of intelligent lock cylinder, especially to a passive intelligent lock cylinder and key with double authentication. BACKGROUND

[0002] With the progress of science and technology and the increasing popularity of smart home, as a key component of modern home security, smart lock is gradually replacing traditional mechanical lock and becoming the mainstream choice in the market. However, the current market of rechargeable smart lock and its supporting equipment still has obvious shortcomings in power supply mode and safety performance.

[0003] The opening mode of common smart lock, such as single key or card unlocking, although provides security to some extent, but in actual use, the risk of key loss or duplication, card damage or loss still exists, which limits the practicality and convenience of lock.

[0004] Type-C lock cylinder has the characteristics of serialization, standardization, low cost and refinement. The key has low power consumption, the lock cylinder can be built-in identity authentication information, and the key can be unlocked by inserting it in both directions, so as to realize more user-friendly unlocking experience, which can significantly improve the safety and speed of passive lock cylinder.

[0005] However, the current market of smart lock with Type-C lock cylinder structure usually adopts single Type-C information authentication structure, although there are remote permission cancellation and other anti-loss settings, but in certain circumstances, there are still problems of hanging black information update not in time, which threatens the safety of the lock. Therefore, it is urgent to design a smart lock with enhanced user identity authentication to improve the safety of the smart lock. SUMMARY

[0006] The main purpose of the utility model is to provide a passive intelligent lock cylinder and key with double authentication, which solves the problem of security vulnerability of smart lock cylinder and key with single Type-C lock cylinder structure, weak user identity information authentication means and real-time problem.

[0007] To solve the above technical problems, the utility model adopts the technical scheme of a passive intelligent lock cylinder and key with double authentication, the lock cylinder is arranged in the lock cylinder shell, the lower shell and the lower surface of the lock cylinder shell form a cavity, the control circuit and the vertically shuttleable pin are arranged in the cavity, the pin is inserted into the pin hole at the lower end of the lock cylinder through the lock cylinder shell, and the charging port is arranged at the end of the key hole in the middle of the lock cylinder.

[0008] The top end of the tooth part of the smart key is provided with a Type-C charging end, the fingerprint identification module is arranged on one side of the handle part of the smart key, the smart key is inserted into the middle key hole of the lock cylinder, power is supplied to the control circuit, and the pin is driven to shuttle downward after the double authentication.

[0009] In a preferred embodiment, the pin is sleeved inside the magnet base, and a first spring is provided between the bottom of the pin and the bottom of the magnet base.

[0010] When the Type-C charging connector is inserted into the charging port and powered on, the magnet base drives the pin to move downwards and disengage from the pin hole, allowing the smart key to turn the lock cylinder.

[0011] In the preferred embodiment, one end of the lock cylinder is also provided with an annular groove, and the corresponding position of the lock cylinder outer shell is provided with an annular through groove. The inner and outer rings of the limiting ring are respectively set in the annular groove and the annular through groove to axially limit the lock cylinder.

[0012] In the preferred embodiment, the end of the lock cylinder is connected to the lock tongue.

[0013] In a preferred embodiment, a terminal sleeve is further provided between the outer shell of the smart key teeth and the Type-C charging terminal. A second spring is provided between the bottom end of the terminal sleeve and the bottom end of the inner part of the outer shell of the teeth. The second spring provides a force for the terminal sleeve to move towards the top of the Type-C charging terminal.

[0014] In the preferred embodiment, the outer edge of the charging port is provided with a stepped surface. When the smart key is inserted into the keyhole in the middle of the lock cylinder, the end sleeve abuts against the stepped surface and moves into the toothed outer shell, so that the Type-C charging end is exposed and inserted into the charging port.

[0015] In the preferred embodiment, after the Type-C charging terminal is inserted into the charging port and powered on, both the fingerprint recognition module and the magnet base are electrically connected to the control circuit to perform dual authentication of key information and fingerprint information.

[0016] In the preferred embodiment, the smart key handle also has a hanging ear at the end.

[0017] This utility model provides a passive smart lock cylinder and key with dual authentication, which closely integrates Type-C smart lock cylinder technology with fingerprint recognition technology to achieve dual authentication, namely key information recognition and current user identity information recognition. After the key information recognition is successful, the user identity information authentication is performed. The lock can only be opened when both are successful, which improves the security and reliability of the smart lock cylinder and makes up for the problem of weak and not real-time user identity information authentication methods. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is the overall appearance and structural diagram of this utility model;

[0020] Figure 2 This is a side sectional view of the structure of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the smart key of this utility model;

[0022] Figure 4 This is a cross-sectional view of the smart key inserted into the lock cylinder.

[0023] In the diagram: 1. Lock cylinder housing; 2. Lock tongue; 3. Lock cylinder; 301. Pin hole; 302. Charging port; 4. Protective shell; 5. Smart key; 501. Tooth housing; 502. End cap housing; 503. Second spring; 504. Hook; 6. Type-C charging terminal; 7. Fingerprint recognition module; 8. Pin; 9. Control circuit; 10. Magnet base; 11. First spring; 12. Limiting ring. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-4 As shown, a dual-authentication passive smart lock cylinder and key are provided. The lock cylinder 3 is set inside the lock cylinder shell 1. The protective shell 4 below the lock cylinder shell 1 forms a cavity with the lower surface of the lock cylinder shell 1. The cavity is provided with a control circuit 9 and a vertically movable pin 8. The end of the pin 8 passes through the lock cylinder shell 1 and is inserted into the pin hole 301 at the lower end of the lock cylinder 3. The key hole in the middle of the lock cylinder 3 is provided with a charging port 302.

[0026] The top of the teeth of the smart key 5 is equipped with a Type-C charging terminal 6, and a fingerprint recognition module 7 is provided on one side of the handle of the smart key 5. The smart key 5 is inserted into the keyhole in the middle of the lock cylinder 3 to supply power to the control circuit 9. After the dual authentication is successful, the drive pin 8 moves downward.

[0027] This application uses a Type-C smart key, which contains power supply and key ID information. The lock cylinder 3 is passive and is powered only by the key. The mechanical mechanism is simple, maintenance-free, and not easily damaged. When the Type-C charging terminal 6 is inserted into the charging port 302, the control circuit 9 is activated.

[0028] The fingerprint recognition module 7 is integrated into one side of the handle of the smart key 5, making it convenient for users to unlock the key while holding it. At the same time, due to the unavoidable nature of the grip, fingerprint recognition is forced on the key user, which enhances the security and convenience of the authentication system.

[0029] In a preferred embodiment, the pin 8 is sleeved inside the magnet base 10, and a first spring 11 is provided between the bottom of the pin 8 and the bottom of the magnet base 10.

[0030] When the Type-C charging connector 6 is inserted into the charging port 302, power is supplied, causing the magnet base 10 to drive the pin 8 to move downwards and disengage from the pin hole 301, allowing the smart key 5 to rotate the lock cylinder 3.

[0031] The lock cylinder 3 is cleverly placed inside the lock cylinder housing 1. The cavity between the protective shell 4 and the lock cylinder housing 1 provides installation space for the magnet base 10 and the control circuit 9. The magnet base 10 adopts a ring structure, which makes the overall structure compact. While being protected by the housing, it is easy to install, disassemble and maintain.

[0032] The smart key 5 can only be powered on after it is inserted into the lock cylinder 3; otherwise, the lock cylinder 3 is passive, which prevents it from being cracked by electromagnetic means and improves security.

[0033] In the preferred embodiment, one end of the lock cylinder 3 is also provided with an annular groove, and the corresponding position of the lock cylinder outer shell 1 is provided with an annular through groove. The inner and outer rings of the limiting ring 12 are respectively set in the annular groove and the annular through groove to axially limit the lock cylinder 3.

[0034] In the preferred embodiment, the end of the lock cylinder 3 is connected to the bolt 2. The bolt 2 is used to control the rotation of the lock.

[0035] In a preferred embodiment, an end cap 502 is also provided between the toothed outer shell 501 of the smart key 5 and the Type-C charging terminal 6. A second spring 503 is provided between the bottom end of the end cap 502 and the bottom end inside the toothed outer shell 501. The second spring 503 provides a force for the end cap 502 to move towards the top of the Type-C charging terminal 6.

[0036] In the preferred embodiment, the outer edge of the charging port 302 is provided with a stepped surface. When the smart key 5 is inserted into the keyhole in the middle of the lock cylinder 3, the end sleeve 502 abuts against the stepped surface and moves into the toothed outer shell 501, so that the Type-C charging end 6 is exposed and inserted into the charging port 302.

[0037] When the smart key 5 is outside the lock cylinder 3 and ready for use, the end cover 502 extends to enclose the Type-C charging end 6, preventing the key teeth from breaking or wearing. At the same time, its shuttle-like structure allows the key to retract as it is inserted into the keyhole, making it convenient and quick to use the smart key 5. After use, when the smart key 5 is pulled out, the second spring 503 pushes the end cover 502 out of the toothed outer shell 501 again, restoring protection for the Type-C charging end 6. The mechanical structure is simple, making it convenient and quick to use the smart key 5, and the protective shell increases the durability of the smart key 5.

[0038] In the preferred embodiment, after the Type-C charging terminal 6 is inserted into the charging port 302 and powered on, the fingerprint recognition module 7 and the magnet base 10 are both electrically connected to the control circuit 9 to perform dual authentication of key information and fingerprint information.

[0039] When in use, the Type-C charging terminal 6 is inserted into the charging port 302 to supply power to the lock cylinder. The control circuit 9 transmits and authenticates the information of the smart key 5 through the Type-C charging terminal 6. After successful authentication, the control circuit 9 sends a verification request to the fingerprint recognition module 7 of the smart key 5. The user holds the handle of the smart key 5 to authenticate the identity information of the current holder, and the information is transmitted back to the control circuit 9.

[0040] Only when both authentications are successful, the control circuit 9 sends a power supply command to the magnet base 10. The electromagnet is energized and generates magnetic force, which drives the pin 8 to move downward and engage the lock cylinder 3. The user then turns the smart key 5 to make the lock cylinder 3 rotate, thus completing the unlocking operation.

[0041] When the user disconnects from the fingerprint recognition module 7 or the Type-C charging terminal 6 is no longer connected to the charging port 302, the control circuit 9 stops transmitting the unlocking signal, the lock cylinder 3 is de-energized, and the pin 8 automatically resets and inserts into the pin hole 301 under the drive of the first spring 11, thereby locking the lock cylinder 3 again.

[0042] The Type-C charging connector is reversible, allowing the Smart Key 5 to be used without needing to distinguish between the front and back. It can be used anytime, anywhere, providing external power while transmitting information. The energy efficiency and information transmission accuracy of the mechanical connection are higher than those of the wireless induction type, making the information authentication results more reliable.

[0043] Dual authentication using key ID information and user fingerprint identity information prevents unauthorized users from unlocking the lock with unlockable keys in cases of lost keys, greatly enhancing the lock's unique targeting of the main user and improving the overall anti-theft security of the lock.

[0044] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A passive smart lock cylinder and key with dual authentication, characterized in that: The lock cylinder (3) is located inside the lock cylinder shell (1). The lower protective shell (4) of the lock cylinder shell (1) and the lower surface of the lock cylinder shell (1) form a cavity. The cavity is equipped with a control circuit (9) and a pin (8) that can move vertically. The end of the pin (8) passes through the lock cylinder shell (1) and is inserted into the pin hole (301) at the lower end of the lock cylinder (3). The key hole in the middle of the lock cylinder (3) is equipped with a charging port (302). The smart key (5) has a Type-C charging terminal (6) at the top of the teeth and a fingerprint recognition module (7) on one side of the handle. The smart key (5) is inserted into the keyhole in the middle of the lock cylinder (3) to supply power to the control circuit (9). After the dual authentication is passed, the drive pin (8) moves downward.

2. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: The pin (8) is sleeved inside the magnet seat (10), and a first spring (11) is provided between the bottom of the pin (8) and the bottom of the magnet seat (10). The Type-C charging terminal (6) is inserted into the charging port (302) to power on the magnet base (10) and drive the pin (8) to move downwards and disengage from the pin hole (301). The smart key (5) can then turn the lock cylinder (3).

3. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: One end of the lock cylinder (3) is also provided with an annular groove, and the lock cylinder shell (1) is provided with an annular through groove at the corresponding position. The inner and outer rings of the limiting ring (12) are respectively set in the annular groove and the annular through groove to axially limit the lock cylinder (3).

4. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: The end of the lock cylinder (3) is connected to the lock tongue (2).

5. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: The smart key (5) tooth shell (501) is further fitted with an end cap (502) between the tooth shell (501) and the Type-C charging terminal (6). A second spring (503) is provided between the bottom end of the end cap (502) and the bottom end of the tooth shell (501). The second spring (503) provides the end cap (502) with a force to move towards the top of the Type-C charging terminal (6).

6. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: The charging port (302) has a stepped surface on its outer edge. When the smart key (5) is inserted into the keyhole in the middle of the lock cylinder (3), the end sleeve (502) abuts against the stepped surface and moves into the toothed outer shell (501), so that the Type-C charging end (6) is exposed and inserted into the charging port (302).

7. The passive smart lock cylinder and key with dual authentication as described in claim 1, characterized in that: After the Type-C charging terminal (6) is inserted into the charging port (302) and powered on, the fingerprint recognition module (7) and the magnet base (10) are both electrically connected to the control circuit (9) to perform dual authentication of key information and fingerprint information.

8. The passive smart lock cylinder and key with dual authentication as described in claim 5, characterized in that: The smart key (5) also has a hanging ear (504) at the end of the handle.

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