door lock

Abstract

This invention relates to the field of door lock technology, specifically to a door lock comprising: a lock body, a main locking mechanism, a backup locking mechanism, and a locking component; the main locking mechanism includes a key, which is detachably mounted in the lock body; the backup locking mechanism and the locking component are both mounted in the lock body; the backup locking mechanism is used to lock or unlock the locking component, and the locking component can be connected to or separated from the key; when the backup locking mechanism unlocks the locking component, the locking component can be separated from the key, so that the key is unlocked and can be removed from the lock body; when the backup locking mechanism locks the locking component, the locking component can be connected to the key, so that the key is locked in the lock body. This door lock can improve the security of hiding the mechanical key in the lock body and alleviate the problem that criminals can easily remove the key from the lock body to unlock the door.

Description

Technical Field

[0001] This invention relates to the field of door lock technology, and more specifically, to a door lock. Background Technology

[0002] The related technologies provide door locks including mechanical locks and smart locks. Among them, smart locks are a new type of door lock that can be unlocked using passwords, fingerprints, and facial recognition. Since they do not require carrying keys during daily use, they are more convenient to use and less likely to cause problems such as users being unable to unlock or open the door because they have forgotten to bring their keys.

[0003] Smart locks all require battery power to unlock using methods such as passwords, fingerprints, and facial recognition. If the battery is dead or the smart lock malfunctions, a mechanical key is still needed. However, users typically don't carry the mechanical key when they're out, making it impossible to unlock the smart lock. To address this issue, some technologies conceal the mechanical key within the lock body. When needed, the key can be retrieved from the lock body to unlock the door.

[0004] However, this method greatly reduces security, and criminals can easily remove the key from the lock body to unlock it. Summary of the Invention

[0005] The purpose of this invention is to provide a door lock that can improve the security of hiding the mechanical key in the lock body and improve the problem that criminals can easily take the key out of the lock body to unlock it.

[0006] The embodiments of the present invention are implemented as follows:

[0007] This invention provides a door lock, comprising:

[0008] Lock body;

[0009] A main locking mechanism is disposed in the lock body and includes at least two unlocking modes. The main locking mechanism includes a key, which is detachably mounted in the lock body and is used to execute one of the unlocking modes.

[0010] A backup locking mechanism is assembled into the lock body.

[0011] A locking component is assembled into the lock body, and a backup locking mechanism is used to lock or unlock the locking component, and the locking component can be connected to or separated from the key;

[0012] When the backup locking mechanism unlocks the locking component, the locking component can be separated from the key, so that the key can be unlocked and removed from the lock body;

[0013] When the backup locking mechanism locks the locking component, the locking component can connect with the key so that the key is locked inside the lock body.

[0014] In an optional embodiment, the locking component includes a toggle member rotatably disposed in the lock body, a backup locking mechanism for locking or unlocking the toggle member, and the toggle member being able to connect or disconnect from a key assembled in the lock body.

[0015] When the backup locking mechanism unlocks the toggle switch, the toggle switch can rotate under the action of external force until it separates from the key.

[0016] In an optional embodiment, the locking assembly further includes a first elastic element that elastically engages with the actuating element so that the actuating element always tends to rotate to engage with a key mounted in the lock body.

[0017] In an optional embodiment, the backup locking mechanism includes a combination dial assembly and a locking element, both of which are movably disposed on the lock body. The locking element is configured to switch between an unlocked position and a locked position, and the combination dial assembly can lock the locking element in the locked position or unlock it; wherein,

[0018] When the keypad assembly unlocks the locking mechanism, the locking mechanism can switch to the unlocked position and separate from the toggle switch, so that the toggle switch can be separated from the key assembled in the lock body.

[0019] When the keypad assembly locks the locking member in the locked position, the locking member abuts against the toggle member, so that the toggle member is locked in connection with the key assembled in the lock body.

[0020] In an optional embodiment, the keypad assembly can be moved about a set axis, and the moving part is configured to be moved in a set direction to separate from the key assembled in the lock body; the set direction is set at an angle to the extension direction of the set axis.

[0021] In an optional implementation, the locking member can abut against the actuating member in a predetermined direction and lock the actuating member in a position connected to the key assembled in the lock body.

[0022] In an optional embodiment, the backup lock mechanism further includes a housing, which includes a first housing and a second housing connected to each other. The first housing is provided with a first window and a second window that are adjacent to each other. A portion of the keypad assembly is exposed through the first window, and a portion of the toggle is exposed through the second window.

[0023] In an optional embodiment, the backup locking mechanism further includes a second elastic element connected to the locking element, the second elastic element being configured to allow the locking element to switch to the unlocked position.

[0024] In an optional embodiment, the combination wheel assembly includes a combination wheel and an eccentric wheel. The combination wheel is connected to the eccentric wheel and is rotatably mounted on the lock body. The eccentric wheel can lock the locking element in the locked position or unlock the locking element.

[0025] In an optional embodiment, the combination dial assembly further includes a first rotating shaft, an eccentric wheel rotatably mounted on the lock body via the first rotating shaft; a locking member is provided with a plug-in interface, into which the combination dial is rotatably plugged; the eccentric wheel is configured to move synchronously along the axial direction of the first rotating shaft with it, and to be connected or disconnected from the combination dial in a transmission manner.

[0026] When the eccentric wheel separates from the keypad, the keypad rotates independently around its own axis of rotation relative to the eccentric wheel to adjust the keypad's unlocking code.

[0027] When the eccentric wheel is connected to the combination lock, the combination lock can drive the eccentric wheel to rotate synchronously, so as to use the eccentric wheel to lock the locking element in the locked position or to unlock the locking element.

[0028] In an optional embodiment, the combination lock assembly further includes a second rotating shaft and a third elastic element. The second rotating shaft is rotatably disposed on the lock body and is connected to a boss that can engage with the first rotating shaft in a transmission manner. The third elastic element is connected to the first rotating shaft.

[0029] When the second rotating shaft rotates to the point that the boss abuts against the first rotating shaft, the boss can drive the first rotating shaft to move the eccentric wheel to separate from the keypad.

[0030] When the second shaft rotates until the boss separates from the first shaft, the first shaft can drive the eccentric wheel to move and connect with the password disk under the elastic action of the third elastic element.

[0031] In an alternative implementation, the key is provided with a notch, and the locking component can be inserted into or detached from the notch.

[0032] In an optional embodiment, the lock body is provided with a loading and unloading port for loading and unloading the key into and out of the lock body;

[0033] The access port is located at the bottom of the lock body; and / or,

[0034] The door lock also includes a fourth elastic element, which is connected to the lock body. When the key is installed in the lock body and connected to the locking component, the fourth elastic element is squeezed by the key. When the key is separated from the locking component, the fourth elastic element allows the key to pop out from the release port.

[0035] In an optional embodiment, the lock body is provided with an assembly groove, and the fourth elastic element is assembled in the assembly groove. The assembly groove and the take-out port are distributed opposite to each other, and the key is detachably assembled in the assembly groove through the take-out port.

[0036] The assembly slot wall is provided with a clearance opening, through which the locking component can extend into the assembly slot and connect with the key.

[0037] The beneficial effects of the door lock in this embodiment of the invention include: the door lock provided by this embodiment of the invention includes a lock body, a backup locking mechanism, and a locking component key. The main locking mechanism, the backup locking mechanism, and the locking component are all assembled in the lock body. The main locking mechanism includes a key, which is detachably assembled in the lock body. The backup locking mechanism is used to lock or unlock the locking component, and the locking component can be connected to or separated from the key. When the backup locking mechanism unlocks the locking component, the locking component can be separated from the key, so that the key is unlocked and can be taken out from the lock body. When the backup locking mechanism locks the locking component, the locking component can be connected to the key, so that the key is locked in the lock body. In this way, the locking component can only be unlocked and separated from the key when the backup locking mechanism is unlocked, so that the key can be taken out from the lock body, which effectively improves security. That is, it is not easy for criminals to unlock the backup locking mechanism and it is difficult to take out the hidden key from the lock body. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the door lock structure in an embodiment of the present invention;

[0040] Figure 2 This is an exploded view of the door lock in an embodiment of the present invention;

[0041] Figure 3 This is an exploded structural diagram of the backup locking mechanism and locking component in an embodiment of the present invention;

[0042] Figure 4 This is a partial structural diagram of the backup locking mechanism, locking components, and key when the locking member is in the locked position in an embodiment of the present invention;

[0043] Figure 5 This is a partial structural diagram of the backup locking mechanism, locking component, and key when the locking member is in the unlocked position in an embodiment of the present invention. Figure 1 ;

[0044] Figure 6 This is a schematic diagram of the key, backup lock mechanism, and locking component in an embodiment of the present invention;

[0045] Figure 7This is an exploded view of a partial structure of the locking component and the backup locking mechanism in an embodiment of the present invention;

[0046] Figure 8 This is a partial structural diagram of the backup locking mechanism, locking component, and key when the locking member is in the unlocked position in an embodiment of the present invention.

[0047] Icons: 010-Door lock; 100-Lock body; 101-Retrieval port; 102-Assembly slot; 103-Avoidance port; 110-Top cover; 111-Third window; 120-Bottom shell; 130-Cover plate; 200-Backup lock mechanism; 210-Combination dial assembly; 211-Combination dial; 212-Eccentric wheel; 213-First pivot; 214-Arc-shaped protrusion; 215-Straight edge; 216-Interlocking notch; 217-Protrusion tooth; 218-Assembly hole; 219-Extension; 220-Locking element; 221-Interlocking interface; 230-Second elastic element; 240-Second... 241-Shaft; 242-Flat surface; 243-Slot; 244-Gap; 250-Third elastic element; 260-Outer shell; 261-First shell; 262-Second shell; 263-First window; 264-Second window; 265-Opening; 266-Through hole; 270-Spring; 300-Locking assembly; 310-Actuating element; 311-Shaft; 312-Actuating part; 313-Supporting part; 314-Clutch tooth; 320-First elastic element; 330-Third shaft; 400-Key; 410-Notch; 500-Fourth elastic element. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Please refer to Figure 1 This embodiment provides a door lock 010, which includes a lock body 100, a lock cylinder and a bolt (not shown in the figure) assembled on the lock body 100, and a main lock mechanism. The lock cylinder and the bolt are driven to extend and retract relative to the lock body 100 to achieve locking and unlocking.

[0054] The structure and working principle of the lock body 100, lock cylinder and lock tongue are similar to those of door locks provided by related technologies, and will not be described in detail here.

[0055] The main lock mechanism includes multiple unlocking modes. The main lock mechanism controls the lock cylinder to extend and retract the bolt in both electronic and mechanical modes. In other words, the door lock 010 can be unlocked and locked in both electronic and mechanical modes. Electronic unlocking modes include unlocking using fingerprints, passwords, and facial recognition. The specific electronic control modules and working principles are similar to related technologies. Mechanical unlocking modes use a mechanical key to drive the lock cylinder to retract the bolt into the lock body 100.

[0056] Please refer to Figure 1 and Figure 2The door lock 010 in this embodiment also includes a backup locking mechanism 200 and a locking component 300; the main locking mechanism includes a key 400 (i.e., a mechanical key), the backup locking mechanism 200 and the locking component 300 are both assembled in the lock body 100, and the backup locking mechanism 200 is used to lock or unlock the locking component 300; the key 400 is detachably assembled in the lock body 100, that is, the key 400 is detachably hidden in the lock body 100; the locking component 300 can be connected to or separated from the key 400; wherein, when the backup locking mechanism 200 unlocks the locking component 300, the locking component 300 can be separated from the key 400, so that the key 400 is unlocked and can be taken out from the lock body 100; when the backup locking mechanism 200 locks the locking component 300, the locking component 300 can be connected to the key 400, so that the key 400 is locked in the lock body 100. In this way, the locking component 300 can only be unlocked when the backup locking mechanism 200 is unlocked, and the locking component 300 can be separated from the key 400 so that the key 400 can be taken out from the lock body 100. This effectively improves security, meaning that it is not easy for criminals to unlock the backup locking mechanism 200 and it is difficult to take out the hidden key 400 from the lock body 100.

[0057] It should be understood that in other embodiments, the door lock 010 may only include mechanically controlled unlocking methods, that is, it can only be unlocked by using the key 400 hidden in the lock body 100, and cannot use unlocking methods such as fingerprint or facial recognition, which is not specifically limited here.

[0058] The lock body 100 has a structure similar to related technologies, including a front shell and a rear shell. The front shell is used to mount on the front side of the security door, i.e., the outer side when the security door is closed, and the rear shell is used to mount on the rear side of the security door, i.e., the inner side when the security door is closed. The backup locking mechanism 200 and the locking component 300 are both mounted on the front shell, and the key 400 is detachably mounted on the front shell so that if the user forgets to bring the key 400, he / she can take the key 400 from the outside to unlock the door.

[0059] Furthermore, the front housing includes an upper cover 110 and a bottom cover 120. The upper cover 110 is fastened and connected to the bottom cover 120. The bottom cover 120 is used to connect to the security door. The backup locking mechanism 200 and the locking component 300 are both assembled on the bottom cover 120. The upper cover 110 is used to cover and protect the backup locking mechanism 200 and the locking component 300. The connection method between the upper cover 110 and the bottom cover 120 includes, but is not limited to, snap-fitting and welding.

[0060] It should be noted that the results of the front and rear shells of the lock body 100 are similar to those of related technologies, and will not be described in detail here.

[0061] Please refer to Figure 3 , Figure 4 and Figure 5The locking assembly 300 in this embodiment includes a toggle member 310, which is rotatably mounted on the lock body 100. Specifically, the toggle member 310 is rotatably mounted on the bottom shell 120. A backup locking mechanism 200 is used to lock or unlock the toggle member 310. The toggle member 310 can be connected to or separated from the key 400 mounted in the lock body 100. When the backup locking mechanism 200 unlocks the toggle member 310, the toggle member 310 can rotate under the action of external force to separate from the key 400. When the toggle member 310 is unlocked, it is only necessary to toggle the toggle member 310 to make it rotate, so that the key 400 hidden in the lock body 100 can be taken out, ensuring the ease of operation of taking out the key 400.

[0062] Furthermore, the locking assembly 300 also includes a first elastic member 320, which elastically engages with the actuating member 310 to ensure that the actuating member 310 always tends to rotate and connect with the key 400 assembled in the lock body 100. This ensures that the actuating member 310 can reliably connect with the key 400 assembled in the lock body 100 when no external force is applied, thereby ensuring the stability and reliability of the key 400 being concealed within the lock body 100.

[0063] The structure of the backup locking mechanism 200 can be configured as needed. In this embodiment, the backup locking mechanism 200 is a combination lock, which includes a combination dial assembly 210 and a locking member 220. Both the combination dial assembly 210 and the locking member 220 are movably disposed on the lock body 100. The locking member 220 is configured to switch between an unlocked position and a locked position. The combination dial assembly 210 can lock the locking member 220 in the locked position or unlock the locking member 220. When the combination dial assembly 210 unlocks the locking member 220, the locking member 220 can switch to the unlocked position and separate from the actuating member 310, so that the actuating member 310 can... The key 400 can be separated from the key 400 assembled in the lock body 100 under the action of external force; when the combination dial assembly 210 locks the locking member 220 in the locked position, the locking member 220 abuts against the toggle member 310 so that the toggle member 310 is locked in the state connected to the key 400 assembled in the lock body 100. That is, the toggle member 310 held against by the locking member 220 cannot be rotated to separate from the key 400 under the action of external force, and can be reliably maintained in the state connected to the key 400 under the dual action of the locking member 220 and the first elastic member 320, so as to ensure the reliability of the key 400 being hidden in the lock body 100.

[0064] Please refer to Figure 1 and Figure 2The combination lock assembly 210 can be moved around a set axis, and the actuating element 310 is configured to be moved along a set direction to separate from the key 400 assembled in the lock body 100; the set direction is set at an angle to the extension direction of the set axis. This configuration improves the compactness of the structure, so as to make use of the limited space of the door lock to assemble the backup locking mechanism 200 and the locking assembly 300, effectively controlling the size of the door lock 010.

[0065] Furthermore, the locking member 220 can abut against the actuating member 310 in a set direction and lock the actuating member 310 in a position connected to the key 400 assembled in the lock body 100. This arrangement not only ensures the compactness of the structure but also ensures the reliability of locking and unlocking the actuating member 310 by the locking member 220.

[0066] Please refer to Figure 2 , Figure 3 and Figure 6 Optionally, the backup locking mechanism 200 further includes a housing 260, in which the combination dial assembly 210 and the locking member 220 are movably mounted. The housing 260 is mounted on the base shell 120. That is, the combination dial assembly 210 and the locking member 220 are movably mounted on the base shell 120 via the housing 260, allowing the backup locking mechanism 200 to be assembled and then modularly assembled onto the base shell 120, ensuring ease of assembly. It should be understood that in other embodiments, the backup locking mechanism 200 may not include the housing 260, and the combination dial assembly 210 and the locking member 220 may be directly mounted on the base; this is not specifically limited here.

[0067] Furthermore, the outer casing 260 includes a first casing 261 and a second casing 262 that are interlocked and connected, with the combination lock assembly 210 and the locking member 220 assembled between the first casing 261 and the second casing 262. The connection method between the first casing 261 and the second casing 262 includes, but is not limited to, snap-fitting or fastener connection such as bolts. At least one of the first casing 261 and the second casing 262 can also be connected to the rear casing via snap-fitting, fastener connection, or other methods.

[0068] Furthermore, the actuating element 310 is rotatably mounted inside the housing 260 via a third pivot 330, and the third pivot 330 is connected to at least one of the first housing 261 and the second housing 262. The first housing 261 is provided with a first window 263 and a second window 264, which are distributed adjacent to each other. The second housing 262 is provided with an opening 265, through which a portion of the combination dial assembly 210 is exposed from the first window 263, so as to facilitate the user to unlock the combination dial assembly 210. A portion of the toggle member 310 is exposed from the second window 264, so as to facilitate the user to apply force to the exposed portion of the toggle member 310 to rotate the toggle member 310 to separate it from the key 400 inside the lock body 100, thus ensuring the ease of removing the key 400 from the lock body 100. The other portion of the toggle member 310 extends from the opening 265, so that the portion of the toggle member 310 extending from the opening 265 can be connected or disconnected from the key 400, thus ensuring the reliability of locking the key 400 inside the lock body 100 using the toggle member 310.

[0069] Optionally, the first elastic element 320 is a torsion spring, which is sleeved on the third rotating shaft 330. The first torsion arm of the torsion spring is connected to the actuating element 310, and the second torsion arm of the torsion spring is connected to the first housing 261 or the second housing 262. In this way, on the one hand, the locking assembly 300 and the combination dial 211 can be assembled into a whole, and then modularly assembled into the lock body 100, ensuring easy assembly; on the other hand, the torsion spring can reliably connect the actuating element 310 to the key 400, ensuring the stability of the key 400 hidden in the lock body 100.

[0070] Furthermore, the actuating member 310 includes a shaft portion 311, and a actuating portion 312, a supporting portion 313, and a locking tooth 314 connected to the shaft portion 311 and distributed circumferentially along the shaft portion 311. The shaft portion 311 is rotatably connected to the third rotating shaft 330, and the first torsion arm of the torsion spring is connected to the locking tooth 314. The actuating portion 312 extends from the second window 264, and the locking member 220 can abut or separate from the supporting portion 313. At least the locking tooth 314 extends from the opening 265, and the locking tooth 314 is used to connect or separate from the key 400 assembled in the lock body 100. When the combination dial assembly 210 unlocks the locking member 220, the locking member 220 can switch to the unlocked position and separate from the supporting portion 313. This allows the actuating part 312 to drive the shaft part 311, the supporting part 313, and the locking tooth 314 to rotate synchronously under the action of external force, and the locking tooth 314 to separate from the key 400 assembled in the lock body 100; when the combination dial assembly 210 locks the locking member 220 in the locked position, the locking member 220 abuts against the supporting part 313, so that the actuating part 310 is locked in the state where the locking tooth 314 is connected to the key 400 assembled in the lock body 100. Since the supporting part 313 is abutted by the locking member 220, it is difficult to rotate the actuating part 310 by actuating the actuating part 312, and it is difficult to separate the locking tooth 314 from the key 400, so as to ensure the reliability of the key 400 being hidden in the lock body 100.

[0071] The way in which the first torsion arm of the torsion spring is connected to the actuating member 310, and the way in which the second torsion arm of the torsion spring is connected to the first housing 261 or the second housing 262, includes, but is not limited to, snap-fitting, abutting, and bonding.

[0072] It should be understood that in other embodiments, the first torsion arm of the torsion spring may also be connected to the abutment portion 313 or the actuating portion 312, which is not specifically limited here.

[0073] Alternatively, please refer to Figure 4 and Figure 5 The locking member 220 has a first end and a second end that are relatively distributed. The first end of the locking member 220 is movably connected to the first housing 261 or the second housing 262. The second end of the locking member 220 can swing around its first end, and the second end of the locking member 220 can abut or separate from the abutment part 313. When the locking member 220 is unlocked by the keypad assembly 210, the second end of the locking member 220 swings around its first end, which can separate the second end of the locking member 220 from the abutment part 313, thereby unlocking the toggle member 310, so that the toggle member 310 can be separated from the key 400 under the action of external force.

[0074] Optionally, the third rotating shaft 330 is fixedly connected to the first housing 261 or the second housing 262, and the actuating member 310 is rotatably inserted into the third rotating shaft 330 so that the actuating member 310 can rotate independently relative to the third rotating shaft 330. Of course, in other embodiments, the third rotating shaft 330 can be rotatably connected to the first housing 261 or the second housing 262, and the actuating member 310 is fixedly connected to the third rotating shaft 330 so that the actuating member 310 and the third rotating shaft 330 can rotate synchronously; or, the third rotating shaft 330 can be rotatably connected to the first housing 261 or the second housing 262, and the actuating member 310 is also rotatably connected to the third rotating shaft 330.

[0075] To ensure ease of operation for the user of the keypad assembly 210 and the toggle switch 310, please refer to... Figure 2 The top cover 110 has a third window 111, through which the part of the keypad assembly 210 exposed from the first window 263 and the part of the toggle 310 exposed from the second window 264 are both exposed from the third window 111.

[0076] To ensure that the locking element 220 can efficiently and reliably switch to the unlocked position after being unlocked by the keypad assembly 210, please refer to... Figure 4 and Figure 5 The backup locking mechanism 200 in this embodiment further includes a second elastic member 230, which is connected to the locking member 220. Specifically, one end of the second elastic member 230 is connected to the locking member 220, and the other end is connected to the second housing 262. The second elastic member 230 is configured to allow the locking member 220 to switch to the unlocked position. When the locking member 220 is locked in the locked position by the keypad assembly 210, the second elastic member 230 is compressed by the locking member 220. When the locking member 220 is unlocked by the keypad assembly 210, the second elastic member 230 elastically resets and extends, allowing the locking member 220 to switch to the unlocked position under the elastic action of the second elastic member 230.

[0077] It should be understood that in other embodiments, the two ends of the second elastic member 230 are respectively connected to the locking member 220 and the first housing 261. When the locking member 220 is locked in the locked position by the keypad assembly 210, the second elastic member 230 is stretched by the locking member 220. When the locking member 220 is unlocked by the keypad assembly 210, the second elastic member 230 elastically resets and retracts, and the locking member 220 can switch to the unlocked position under the elastic action of the second elastic member 230.

[0078] The connection methods between the second elastic member 230, the locking member 220, and the second housing 262 include, but are not limited to, abutting, snapping, and bonding.

[0079] Please refer to Figure 7The combination lock assembly 210 of this embodiment includes a combination lock 211 and an eccentric wheel 212. The combination lock 211 has multiple markings arranged sequentially and at intervals around its circumference, such as numerical markings 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Of course, in other embodiments, the outer periphery of the combination lock 211 can also be marked with letter markings such as a, b, c, d, e, f, and g. The combination lock 211 is connected to the eccentric wheel 212. The combination lock 211 is rotatably disposed on the lock body 100. Specifically, the combination lock 211 is rotatably assembled between the first housing 261 and the second housing 262, that is, the combination lock 211 is assembled on the lock body 100 through the outer housing 260, and part of the combination lock 211 extends out from the first window 263 and can be exposed from the third window 111. The eccentric wheel 212 can lock the locking member 220 in the locked position or unlock the locking member 220. This configuration allows the keypad 211 exposed from the third window 111 to be turned so that the keypad 211 drives the eccentric wheel 212 to rotate synchronously, thereby enabling the eccentric wheel 212 to rotate to unlock or lock the locking element 220, ensuring ease of unlocking and locking.

[0080] Optionally, the peripheral wall of the eccentric wheel 212 has an arc-shaped protrusion 214 and a straight edge 215 connected to the arc-shaped protrusion 214. The peripheral wall of the eccentric wheel 212 abuts against the locking member 220. When the eccentric wheel 212 rotates, the peripheral wall of the eccentric wheel 212 can slide on the surface of the locking member 220. When the arc-shaped protrusion 214 of the eccentric wheel 212 abuts against the locking member 220, the locking member 220 switches to the locked position and abuts against the abutting part 313 of the toggle member 310. When the straight edge 215 of the eccentric wheel 212 abuts against the locking member 220, the locking member 220 can switch to the unlocked position and separate from the abutting part 313 of the toggle member 310. This configuration not only allows the eccentric wheel 212 to switch the locking member 220 between the unlocked and locked positions, but also allows the eccentric wheel 212 to stably support the locking member 220, ensuring that the second end of the locking member 220 can reliably swing around its first end to reliably abut or separate from the supporting part 313.

[0081] The combination lock assembly 210 also includes a first rotating shaft 213, the axis of rotation of which is a set axis. An eccentric wheel 212 is rotatably mounted within the housing 260 via the first rotating shaft 213. The locking member 220 is provided with a connector 221, into which the combination lock 211 is rotatably inserted, meaning the combination lock 211 can rotate within the connector 221. The eccentric wheel 212 is configured to move synchronously along the axial direction of the first rotating shaft 213, and to interact with the combination lock. The eccentric wheel 212 can be connected or disconnected from the combination dial 211. When the eccentric wheel 212 is disconnected from the combination dial 211, the combination dial 211 rotates independently around its own axis of rotation relative to the eccentric wheel 212 to adjust the unlocking combination of the combination dial 211. When the eccentric wheel 212 is connected to the combination dial 211, the combination dial 211 can drive the eccentric wheel 212 to rotate synchronously around the axis of rotation of the first rotating shaft 213, so as to use the eccentric wheel 212 to lock the locking member 220 in the locked position or to unlock the locking member 220. With this configuration, the eccentric wheel 212 can be disconnected from the combination dial 211 as needed to adjust the unlocking combination of the combination dial 211, and after the combination adjustment is completed, the eccentric wheel 212 can be reconnected to the combination dial 211 to achieve the locking or unlocking of the locking member 220 by rotating the eccentric wheel 212 driven by the combination dial 211.

[0082] It should be noted that when the eccentric wheel 212 is connected to the password disk 211, the password disk 211 is moved around the set axis, which can drive the eccentric wheel 212 to rotate synchronously around the rotation axis of the first rotating shaft 213.

[0083] It should be understood that when the door lock 010 is installed on a security door, the first pivot 213 can be set vertically, and the toggle direction (i.e. the setting direction) of the toggle member 310 is horizontal.

[0084] The angle between the set axis and the set direction can be 90°, 88°, 93°, etc., and no specific limit is specified here.

[0085] Furthermore, the combination dial 211 is provided with a notch 216 for insertion, and the eccentric wheel 212 is connected with a tooth 217. The tooth 217 can be inserted into or separated from the notch 216. When the tooth 217 is inserted into the notch 216, the eccentric wheel 212 is connected to the combination dial 211 for transmission. That is, when the combination dial 211 is moved by an external force, it can drive the eccentric wheel 212 to rotate synchronously around the axis of the first rotating shaft 213. When the tooth 217 is separated from the notch 216, the eccentric wheel 212 is no longer connected to the combination dial 211 for transmission. The combination dial 211 can be moved independently relative to the eccentric wheel 212 to make it rotate independently, so as to adjust the unlocking code of the combination dial 211. After adjusting the unlocking code of the combination dial 211, the tooth 217 is inserted into the notch 216 again, and the new code can be used to unlock the locking member 220.

[0086] It should be noted that when modifying the unlocking code of the combination dial 211, the combination dial 211 must first be rotated with the original code until the straight edge 215 of the eccentric wheel 212 abuts against the locking member 220. That is, the original code is used to unlock the locking member 220. Then, the eccentric wheel 212 is driven to slide along the axial direction of the first rotating shaft 213 through the first rotating shaft 213, so that the protrusion 217 separates from the insertion notch 216. Then, the combination dial 211 is rotated alone to modify the code. After that, the eccentric wheel 212 is driven to slide in the opposite direction along the axial direction of the first rotating shaft 213, so that the protrusion 217 inserts into the insertion notch 216. At this time, the straight edge 215 still abuts against the locking member 220, thus completing the code modification of the combination dial 211. After scrambling the code of the combination dial 211, only the new code can be used to unlock it.

[0087] It should also be noted that the combination disc 211 is provided with mounting holes 218 and multiple insertion notches 216. The multiple insertion notches 216 are all located on the wall of the mounting hole 218 and are evenly distributed around the wall of the mounting hole 218. The first rotating shaft 213 is inserted into the mounting hole 218. The positions of the insertion notches 216, the markings on the outer periphery of the combination disc 211, and the positions of the protrusions 217 on the eccentric wheel 212 are matched so that after the combination disc 211 is rotated to adjust the unlocking combination, the protrusions 217 connected to the eccentric wheel 212 can still be inserted into the insertion notch 216 corresponding to the corresponding combination, thereby ensuring the reliability of the combination adjustment.

[0088] Optionally, the first rotating shaft 213 is rotatably connected to the first housing 261 or the second housing 262, and the eccentric wheel 212 is fixedly connected to the first rotating shaft 213; wherein, the eccentric wheel 212 is fixedly connected to the first rotating shaft 213 in ways including but not limited to being sleeved on the first rotating shaft 213 and having an interference fit with the first rotating shaft 213, or being glued or snapped to the first rotating shaft 213.

[0089] The number of combination dials 211 and eccentric wheels 212 can be selected as needed; the combination dial assembly 210 in this embodiment includes four combination dials 211 and four eccentric wheels 212, which are connected or separated in a one-to-one correspondence. This allows for locking using a four-digit combination, thus improving security.

[0090] Of course, in other embodiments, the number of password disks 211 and eccentric wheels 212 can be one, two, three, five, etc., and no specific limitation is made here.

[0091] It should be noted that the number of insertion ports 221 provided on the locking member 220 is adapted to the number of combination dials 211, so that each combination dial 211 can be inserted into one insertion port 221, so that when the first rotating shaft 213 drives the eccentric wheel 212 to move along the axial direction of the first rotating shaft 213, the locking member 220 can reliably block the movement of the combination dial 211.

[0092] Optionally, the number of first windows 263 provided in the first housing 261 is the same as the number of password disks 211, so that each password disk 211 can be exposed from a corresponding first window 263; in this way, the other structures of the backup locking mechanism 200 can be covered by the first housing 261, improving the problem of the backup locking mechanism 200 being damaged by criminals.

[0093] To facilitate changing the password of keypad 211; please refer to... Figure 7 and Figure 8 The password disk assembly 210 in this embodiment also includes a second rotating shaft 240 and a third elastic member 250. The second rotating shaft 240 is rotatably disposed on the housing 260 and is connected to a boss 241, which can drive and cooperate with the first rotating shaft 213. The third elastic member 250 is connected to the first rotating shaft 213. When the second rotating shaft 240 rotates to the point where the boss 241 abuts against the first rotating shaft 213, the boss 241 can drive the first rotating shaft 213 to move the eccentric wheel 212 to separate from the password disk 211. When the second rotating shaft 240 rotates to the point where the boss 241 separates from the first rotating shaft 213, the first rotating shaft 213 can drive the eccentric wheel 212 to move to the point of drive connection with the password disk 211 under the elastic action of the third elastic member 250.

[0094] Furthermore, the second rotating shaft 240 is connected to two bosses 241, which are spaced apart along the axial direction of the second rotating shaft 240. The second rotating shaft 240 is also provided with a plane 242, which, along with the bosses 241, is distributed circumferentially along the second rotating shaft 240, and the plane 242 extends axially along the second rotating shaft 240. The first rotating shaft 213 is connected to an extension portion 219, which extends circumferentially along the first rotating shaft 213. When the plane 242 and the extension portion 219 are oppositely distributed, the first rotating shaft 213... Under the elastic action of the third elastic element 250, the eccentric wheel 212 is driven to move so that the protruding tooth 217 of the eccentric wheel 212 is inserted into the insertion notch 216 of the password disk 211. When the second rotating shaft 240 rotates around its own axis until one of the bosses 241 abuts against the extension 219, the boss 241 pushes the extension 219, the first rotating shaft 213 and the eccentric wheel 212 to move synchronously along the axial direction of the first rotating shaft 213, and causes the protruding tooth 217 of the eccentric wheel 212 to separate from the insertion notch 216 of the password disk 211.

[0095] A boss 241 is provided on the second rotating shaft 240, and an extension portion 219 is provided on the first rotating shaft 213, so that when the second rotating shaft 240 rotates, the boss 241 pushes the extension portion 219 to drive the first rotating shaft 213 to move, thereby ensuring the ease of operation of adjusting the new password.

[0096] It should be noted that when the combination lock 211 is incorrect, the locking member 220 abuts against the arc-shaped protrusion 214 of the eccentric wheel 212, the locking member 220 is in the locked position, and the locking member 220 abuts against or has a gap 244 with the plane 242 of the second rotating shaft 240, and the locking member 220 is opposite to at least one of the two bosses 241. At this time, if the second rotating shaft 240 has a tendency to rotate around its own axis of rotation, the locking member 220 will abut against at least one of the bosses 241 and the plane 242, or the locking member 220 will... The 0 will abut against the plane 242, so that the second rotating shaft 240 cannot rotate around its own rotation axis. Therefore, the password cannot be changed when the password of the keypad 211 is incorrect. Only when the password of the keypad 211 is correct, the locking member 220 switches to the unlock position, and the gap 244 between the locking member 220 and the two protrusions 241 are relatively distributed. Rotating the second rotating shaft 240 can make the locking member 220 rotate into the gap 244 between the two protrusions 241, and make the protrusions 241 push the first rotating shaft 213 to achieve the modification of the password.

[0097] Furthermore, please refer to Figure 3 The first housing 261 is also provided with a through hole 266, one end of the second rotating shaft 240 is rotatably inserted into the through hole 266 and exposed from the third window 111; the other end of the second rotating shaft 240 is rotatably connected to the second housing 262; this arrangement can ensure the stability of the second rotating shaft 240.

[0098] Alternatively, please refer to Figure 7 and Figure 8 The second rotating shaft 240 is rotatably disposed at one end of the axial direction of the first rotating shaft 213. The third elastic member 250 is sleeved at the other end of the axial direction of the first rotating shaft 213. One end of the third elastic member 250 is connected to the eccentric wheel 212 furthest from the second rotating shaft 240 in the axial direction of the first rotating shaft 213. The other end of the third elastic member 250 is connected to at least one of the first housing 261 and the second housing 262. When the second rotating shaft 240 drives the first rotating shaft 213 to separate the eccentric wheel 212 from the password disk 211, the third elastic member 250 is compressed. When the plane 242 of the second rotating shaft 240 is opposite to the extension 219 connected to the first rotating shaft 213, the third elastic member 250 extends and resets under its own elastic action, and drives the eccentric wheel 212 to drive the first rotating shaft 213 to move in the opposite direction to reset so that the eccentric wheel 212 is connected to the password disk 211.

[0099] The connection methods between the third elastic element 250 and the corresponding eccentric wheel 212, and at least one of the first housing 261 and the second housing 262, include but are not limited to abutting, snapping, and bonding.

[0100] It should be understood that in other embodiments, the third elastic element 250 may also be disposed at the same end as the second rotating shaft 240 at the first rotating shaft 213; when the second rotating shaft 240 drives the first rotating shaft 213 to separate the eccentric wheel 212 from the password disk 211, the third elastic element 250 is stretched; when the plane 242 of the second rotating shaft 240 is opposite to the extension 219 connected to the first rotating shaft 213, the third elastic element 250 retracts and resets under its own elastic action, and drives the eccentric wheel 212 to drive the first rotating shaft 213 to move in the opposite direction to reset so that the eccentric wheel 212 is connected to the password disk 211.

[0101] Optionally, the end of the second pivot 240 exposed from the third window 111 is also provided with a slot 243, such as a flat slot, so that the user can use a screwdriver to rotate the second pivot 240 by using the slot 243, thus ensuring the ease of changing the password.

[0102] The rotation axis of the second rotating shaft 240 and the rotation axis of the first rotating shaft 213 are set at an angle. In this embodiment, the angle between the rotation axis of the second rotating shaft 240 and the rotation axis of the first rotating shaft 213 is 90°. In other embodiments, the angle between the rotation axis of the second rotating shaft 240 and the rotation axis of the first rotating shaft 213 can also be 88°, 93°, etc., and is not specifically limited here.

[0103] Alternatively, please refer to Figure 4 and Figure 5 The backup locking mechanism 200 also includes a spring 270, which is connected to the second housing 262. The connection between the spring 270 and the second housing 262 includes, but is not limited to, plugging, snapping, and bonding. A groove is provided between two adjacent marks on the outer periphery of the combination dial 211. The protrusion at the end of the spring 270 can be plugged into or separated from the groove to increase the tactile feel when the combination dial 211 is rotated.

[0104] Furthermore, the number of springs 270 is matched with the number of keypads 211 to ensure that each keypad 211 has a certain tactile feel when rotated, thus improving the user experience.

[0105] It should be noted that other structures not mentioned in the backup locking mechanism 200 are similar to related technologies and will not be described in detail here.

[0106] Alternatively, please refer to Figure 4 and Figure 5The key 400 has a notch 410, and the locking component 300 can engage or disengage with the notch 410. Specifically, the locking tooth 314 of the actuating component 310 can engage or disengage with the notch 410. When the locking tooth 314 engages with the notch 410, the key 400 is locked in the lock body 100. When the locking tooth 314 disengages from the notch 410, the key 400 is unlocked and can be removed from the lock body 100. By engaging the locking tooth 314 with the notch 410, the stability of the key 400 hidden in the lock body 100 can be improved.

[0107] Please refer to Figure 2 In this embodiment, the lock body 100 is provided with a release port 101. Specifically, the release port 101 is located on the bottom shell 120 and is used to load and unload the key 400 into and out of the lock body 100. The door lock 010 also includes a fourth elastic member 500, which is connected to the lock body 100. When the key 400 is installed in the lock body 100 and connected to the locking assembly 300, the fourth elastic member 500 is compressed by the key 400. When the key 400 is separated from the locking assembly 300, the fourth elastic member 500 allows the key 400 to pop out from the release port 101. In this way, when the key 400 is unlocked, the elasticity of the fourth elastic member 500 pushes the key 400 out from the release port 101, making it convenient for the user to pull out the key 400 from the release port 101.

[0108] Furthermore, the bottom shell 120 is provided with an assembly groove 102, and the fourth elastic member 500 is assembled in the assembly groove 102. That is, one end of the fourth elastic member 500 is connected to the groove wall of the assembly groove 102, and the other end of the fourth elastic member 500 can abut against the key 400 inserted into the assembly groove 102. The assembly groove 102 and the take-out port 101 are distributed opposite to each other. The key 400 is detachably assembled in the assembly groove 102 through the take-out port 101. The groove wall of the assembly groove 102 is provided with a clearance port 103. The locking component 300 can extend into the assembly groove 102 through the clearance port 103 and connect with the key 400. That is, the locking tooth 314 of the actuating member 310 can extend into the assembly groove 102 through the clearance port 103 and engage with the notch 410 of the key 400 to lock the key 400 in the assembly groove 102 and ensure the reliability of the key 400 being hidden in the lock body 100.

[0109] The fourth elastic element 500 is connected to the groove wall of the assembly groove 102 by means including but not limited to fasteners such as bolts or welding.

[0110] Optionally, the access port 101 is located at the lower end (i.e., bottom) of the lock body 100; in this way, when the key 400 is unlocked, the key 400 can reliably slide out from the access port 101 under the elastic action of the fourth elastic element 500 and its own gravity, further ensuring the ease of taking out the key 400.

[0111] Of course, in other embodiments, the access port 101 may also be provided at the upper end or side of the lock body 100, which is not specifically limited here.

[0112] In other embodiments, the door lock 010 may not include the fourth elastic element 500, so that the unlocked key 400 slides out of the access port 101 by its own gravity alone.

[0113] Optionally, the door lock 010 also includes a cover plate 130, which is located between the upper cover 110 and the bottom shell 120 and connected to the bottom shell 120 to cover the mounting groove 102. The cover plate 130 improves the stability of the key 400 when placed and hidden within the lock body 100. The connection between the cover plate 130 and the bottom shell 120 includes, but is not limited to, snap-fitting or fastener connection such as bolts.

[0114] In this embodiment, the second elastic element 230, the third elastic element 250, and the fourth elastic element 500 are all springs. Of course, in other embodiments, at least one of the three elastic elements 230, 250, and 500 may be a torsion spring, etc., which is not specifically limited here.

[0115] In this embodiment, when using the door lock 010, each keypad 211 can be rotated to input the correct password, and each eccentric wheel 212 can be rotated until the straight edge 215 is opposite to the locking member 220. Under the action of the second elastic member 230, the locking member 220 swings until it separates from the actuating member 310. The user actuates the actuating member 310 so that the locking teeth 314 of the actuating member 310 separate from the notch 410 of the key 400. Under the elasticity of the fourth elastic member 500, the key 400 pops out from the release port 101, and the key 400 can be taken out to unlock the door.

[0116] After unlocking, while maintaining the correct password, move the lever 310 so that the locking teeth 314 of the lever 310 are in a position that will not interfere with the key 400. Insert the key 400 into the mounting slot 102 from the access port 101, and then release the lever 310 so that the lever 310 moves under the action of the first elastic member 320 to the notch 410 where the locking teeth 314 are inserted into the key 400. Then rotate the combination dial 211 to scramble the password so that the arc-shaped protrusion 214 of the eccentric wheel 212 abuts against the locking member 220, so that the locking member 220 swings to abut against the abutment part 313 of the lever 310. The lever 310 is locked and cannot be moved to remove the key 400.

[0117] The process of modifying the password of the backup lock mechanism 200 of the door lock 010 includes: first, rotating each combination dial 211 to input the correct password; then rotating the second shaft 240 so that one of the bosses 241 abuts against the extension 219 connected to the first shaft 213, thereby driving the first shaft 213 to move the eccentric wheel 212 along the axial direction of the first shaft 213 in the forward direction, and separating the eccentric wheel 212 from the combination dial 211; rotating the combination dial 211 to adjust the password; then rotating the second shaft 240 again so that the plane 242 of the second shaft 240 is opposite to the extension 219; under the action of the third elastic element 250, the first shaft 213 and the eccentric wheel 212 move in the opposite direction along the axial direction of the first shaft 213, so that the eccentric wheel 212 is restored to the transmission connection with the combination dial 211. After modifying the password, the combination dial 211 can be rotated to scramble the password.

[0118] In summary, the door lock 010 of the present invention can improve the security of hiding the mechanical key in the lock body 100 and improve the problem that criminals can easily take the key 400 out of the lock body 100 to unlock the door.

[0119] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A door lock, characterized in that, include: Lock body (100); A main lock mechanism is disposed in the lock body (100) and includes at least two unlocking modes. The main lock mechanism includes a key (400), which is detachably mounted in the lock body (100) and is used to execute one of the unlocking modes. A backup lock mechanism (200) is assembled on the lock body (100). A locking assembly (300) includes a toggle (310) rotatably disposed on the lock body (100), and a backup locking mechanism (200) for locking or unlocking the toggle (310), wherein the toggle (310) can be connected to or separated from the key (400) assembled in the lock body (100); When the backup locking mechanism (200) unlocks the actuating member (310), the actuating member (310) can rotate under the action of external force to separate from the key (400), so that the key (400) is unlocked and can be taken out from the lock body (100); When the backup locking mechanism (200) locks the locking component (300), the locking component (300) can be connected to the key (400) so that the key (400) is locked inside the lock body (100).

2. The door lock according to claim 1, characterized in that, The locking assembly (300) further includes a first elastic element (320) that elastically engages with the actuating element (310) so that the actuating element (310) always tends to rotate to connect with the key (400) assembled in the lock body (100).

3. The door lock according to claim 1, characterized in that, The backup locking mechanism (200) includes a combination lock assembly (210) and a locking member (220), both of which are movably disposed on the lock body (100). The locking member (220) is configured to switch between an unlocked position and a locked position, and the combination lock assembly (210) can lock the locking member (220) in the locked position or unlock the locking member (220); wherein, When the keypad assembly (210) unlocks the locking member (220), the locking member (220) can switch to the unlocked position and separate from the toggle member (310) so that the toggle member (310) can be separated from the key (400) assembled in the lock body (100); When the keypad assembly (210) locks the locking member (220) in the locked position, the locking member (220) abuts against the toggle member (310) so that the toggle member (310) is locked in connection with the key (400) assembled in the lock body (100).

4. The door lock according to claim 3, characterized in that, The keypad assembly (210) can be moved about a set axis, and the actuating element (310) is configured to be moved in a set direction to separate from the key (400) assembled in the lock body (100); the set direction is set at an angle to the extension direction of the set axis.

5. The door lock according to claim 4, characterized in that, The locking member (220) can abut against the actuating member (310) in the set direction and lock the actuating member (310) in a position connected to the key (400) assembled in the lock body (100).

6. The door lock according to claim 3, characterized in that, The backup lock mechanism (200) also includes a housing (260), which includes a first housing (261) and a second housing (262) connected to each other. The first housing (261) is provided with a first window (263) and a second window (264) distributed adjacent to each other. A portion of the keypad assembly (210) is exposed from the first window (263), and a portion of the toggle (310) is exposed from the second window (264).

7. The door lock according to claim 3, characterized in that, The backup locking mechanism (200) further includes a second elastic element (230) connected to the locking element (220), and the second elastic element (230) is configured to enable the locking element (220) to switch to the unlocked position.

8. The door lock according to claim 3, characterized in that, The combination dial assembly (210) includes a combination dial (211) and an eccentric wheel (212). The combination dial (211) is connected to the eccentric wheel (212). The combination dial (211) is rotatably disposed on the lock body (100). The eccentric wheel (212) can lock the locking member (220) in the locked position or unlock the locking member (220).

9. The door lock according to claim 8, characterized in that, The combination lock assembly (210) further includes a first rotating shaft (213), and the eccentric wheel (212) is rotatably disposed on the lock body (100) via the first rotating shaft (213); the locking member (220) is provided with a plug-in interface (221), and the combination lock (211) is rotatably plugged into the plug-in interface (221); the eccentric wheel (212) is configured to move synchronously along the axial direction of the first rotating shaft (213) with the first rotating shaft (213), and can be connected or separated from the combination lock (211) in a transmission manner; When the eccentric wheel (212) is separated from the keypad (211), the keypad (211) rotates independently about its own axis of rotation relative to the eccentric wheel (212) to adjust the unlocking code of the keypad (211); When the eccentric wheel (212) is connected to the password disk (211), the password disk (211) can drive the eccentric wheel (212) to rotate synchronously, so as to use the eccentric wheel (212) to lock the locking member (220) in the locked position or to unlock the locking member (220).

10. The door lock according to claim 9, characterized in that, The combination lock assembly (210) further includes a second rotating shaft (240) and a third elastic element (250). The second rotating shaft (240) is rotatably disposed on the lock body (100). The second rotating shaft (240) is connected to a boss (241), which can engage with the first rotating shaft (213) in a transmission manner. The third elastic element (250) is connected to the first rotating shaft (213). When the second rotating shaft (240) rotates to the point that the boss (241) abuts against the first rotating shaft (213), the boss (241) can drive the first rotating shaft (213) to move the eccentric wheel (212) to separate from the password disk (211); When the second rotating shaft (240) rotates to the point where the boss (241) separates from the first rotating shaft (213), the first rotating shaft (213) can drive the eccentric wheel (212) to move to a transmission connection with the password disk (211) under the elastic action of the third elastic element (250).

11. The door lock according to claim 1, characterized in that, The key (400) is provided with a notch (410), and the locking component (300) can be inserted into or detached from the notch (410).

12. The door lock according to claim 1, characterized in that, The lock body (100) is provided with a pick-up and put-out opening (101), which is used to load and unload the key (400) onto and off the lock body (100). The access port (101) is located at the bottom of the lock body (100); and / or, The door lock also includes a fourth elastic element (500), which is connected to the lock body (100). When the key (400) is installed in the lock body (100) and connected to the locking assembly (300), the fourth elastic element (500) is squeezed by the key (400). When the key (400) is separated from the locking assembly (300), the fourth elastic element (500) allows the key (400) to pop out from the release port (101).

13. The door lock according to claim 12, characterized in that, The lock body (100) is provided with an assembly groove (102), the fourth elastic element (500) is assembled in the assembly groove (102), the assembly groove (102) is distributed opposite to the take-out port (101), and the key (400) is detachably assembled in the assembly groove (102) through the take-out port (101). The assembly slot (102) has a clearance opening (103) on its wall. The locking component (300) can extend into the assembly slot (102) through the clearance opening (103) and connect with the key (400).

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