Combination lock

Abstract

The application provides a combination lock, which comprises a dead bolt and a latch bolt arranged separately; the dead bolt comprises an unlocking module, a first control unit, a first motor and a first lock tongue in transmission connection; the unlocking module sends an unlocking signal to the first control unit after verifying an external unlocking request; the first control unit controls the first motor to drive the first lock tongue to realize unlocking in response to the unlocking signal; the latch bolt comprises a second control unit, a second motor and a second lock tongue in transmission connection; the second control unit controls the second motor to drive the second lock tongue to realize unlocking in response to the unlocking signal forwarded by the first control unit. In the combination lock, after receiving and verifying the external unlocking request, the dead bolt can not only autonomously execute the unlocking operation, but also can linkage control the latch bolt to realize synchronous unlocking, so that the user does not need to separately perform independent unlocking operations on the dead bolt and the latch bolt, and the unlocking process is significantly simplified.

Description

Technical Field

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

[0002] In the field of door locks, a combination of deadbolt and angled locks is commonly used to improve security. This combination lock establishes multi-point locking between the door leaf and the door frame through a dual locking mechanism formed by the deadbolt and angled lock, thereby enhancing its ability to resist unauthorized opening from the outside.

[0003] In practical use, users need to perform a step-by-step unlocking operation when they want to open the door from the inside to leave. Specifically, when the lock is a mechanical lock body, the user must first use a mechanical knob or key to independently unlock the lock, causing the bolt to retract to the unlocked state. When the lock is an electronic lock body, authentication is required through fingerprint, password, card swipe, or other verification methods to unlock the lock. After the lock is unlocked, the user cannot open the door directly; they must also hold and turn the handle of the beveled lock to disengage the bolt from its locked position before finally opening the door.

[0004] The aforementioned door-opening process involves at least two separate steps, which are cumbersome and time-consuming. For modern users with fast-paced lifestyles and time-sensitive needs, this multi-step operation mode significantly reduces ease of use. Especially in scenarios where users urgently need to leave quickly (such as catching a bus, picking up children, or handling emergencies), the opening efficiency of existing combination locks is insufficient to meet actual needs, severely impacting the user experience.

[0005] More seriously, in emergency escape situations such as fires and earthquakes, users may find it difficult to quickly complete the multi-step unlocking process due to tension, panic, or time constraints, thus delaying precious escape opportunities and posing a potential threat to personal safety. In addition, frequent and complex operations can easily cause user frustration and reduce product satisfaction, especially creating additional usage obstacles for the elderly, children, or people with mobility impairments.

[0006] This shows that while existing combination locks meet security requirements, they cannot simultaneously address the convenience of user operation and the need for rapid passage in emergency situations, resulting in a contradiction between security and passage efficiency. Summary of the Invention

[0007] The primary objective of this invention is to solve at least one of the aforementioned problems by providing a combination lock.

[0008] To achieve the various objectives of this invention, the following technical solution is adopted: To achieve one of the objectives of this invention, a combination lock is provided, comprising a separately configured deadbolt lock and a slant lock; The lock includes an unlocking module, a first control unit, and a first motor and a first locking tongue connected by a transmission. After the unlocking module verifies that the external unlocking request is successful, it sends an unlocking signal to the first control unit. The first control unit responds to the unlocking signal and controls the first motor to drive the first locking tongue to unlock. The inclined lock includes a second control unit and a second motor and a second locking tongue connected by a transmission. The second control unit responds to the unlocking signal forwarded by the first control unit and controls the second motor to drive the second locking tongue to unlock.

[0009] In one embodiment, the unlocking module includes a first wireless unlocking unit, and the inclined lock also includes a second wireless unlocking unit. After the first wireless unlocking unit and the second wireless unlocking unit verify the external wireless unlocking request, they respectively send unlocking signals to the first control unit and the second control unit. The first control unit and the second control unit respond to the unlocking signals and synchronously control the first motor to drive the first bolt to unlock and the second motor to drive the second bolt to unlock.

[0010] In one embodiment, the unlocking module includes a first wireless unlocking unit. After verifying that an external wireless unlocking request has been successfully sent, the first wireless unlocking unit sends an unlocking signal to the first control unit, and the first control unit forwards the unlocking signal to the second control unit.

[0011] In one embodiment, the unlocking module includes a camera unit and a face recognition unit. The face recognition unit is electrically connected to the camera unit and the first control unit, respectively. After the face recognition unit verifies the external face unlocking request, it sends an unlocking signal to the first control unit, and the first control unit forwards the unlocking signal to the second control unit.

[0012] In one embodiment, the unlocking module includes a touch control and a verification unit. The verification unit is electrically connected to the touch control and the first control unit, respectively. The verification unit is a fingerprint verification unit or a palm print verification unit. The touch control corresponds to a fingerprint acquisition device or a palm print acquisition device. After the verification unit verifies the touch unlocking request, it sends an unlocking signal to the first control unit. The first control unit forwards the unlocking signal to the second control unit.

[0013] In one embodiment, the unlocking module includes an input keyboard and a password verification unit. The password verification unit is electrically connected to the input keyboard and the first control unit, respectively. The input keyboard corresponds to a physical input keyboard or a touch panel. After the password verification unit verifies the password unlocking request, it sends an unlocking signal to the first control unit. The first control unit forwards the unlocking signal to the second control unit.

[0014] In one embodiment, the deadbolt further includes a lock cylinder with a keyhole. The lock cylinder is connected to the first bolt and is used to drive the first bolt to unlock. After the first control unit detects that the deadbolt has been unlocked, it forwards the unlocking signal to the second control unit.

[0015] In one embodiment, the lock includes a front lock installed outside the door and a rear lock installed inside the door. The unlocking module is installed on the front lock, the first motor is installed on the rear lock, and a first square shaft is connected between the front lock and the rear lock. The first square shaft passes through the first lock tongue, the first motor is driven to one end of the first square shaft, and the other end of the first square shaft is driven to the lock cylinder.

[0016] In one embodiment, the angled lock includes an inner handle installed inside the door, an outer handle installed outside the door, and a second square shaft connecting the inner handle and the outer handle. The second latch is telescopically installed inside the door, the second square shaft passes through the second latch, and the second motor is drively connected to the second square shaft.

[0017] In one embodiment, the outer handle is arched and has a paddle on it. The paddle is connected to the second square shaft via a gear and rack mechanism. The inner handle is L-shaped and includes a handle portion and a pivot portion. The pivot portion is connected to the second square shaft via a torsion spring.

[0018] Compared with existing technologies, the present invention has many advantages, including but not limited to: First, by setting the deadbolt and the angled lock separately, and integrating the unlocking module, the first control unit and the first locking tongue driven by the first motor into the deadbolt, the deadbolt has the ability to independently receive and verify external unlocking requests. This avoids the limitations of traditional mechanical locks or simple electronic locks that rely on physical keys or local button operations, and improves the intelligence level and remote controllability of the lock.

[0019] Secondly, this invention constructs a signal linkage mechanism between the deadbolt and the angled lock: although the angled lock is not equipped with an independent unlocking module, its second control unit can respond to the unlocking signal forwarded by the first control unit of the deadbolt, thereby driving the second motor to drive the second lock tongue to complete the unlocking action, realizing the collaborative control logic of single lock triggering and double lock linkage. While ensuring centralized security verification, it avoids repeatedly configuring the unlocking module at the angled lock end, thereby reducing the overall hardware cost and system complexity.

[0020] Furthermore, since users only need to initiate an unlock command once to simultaneously unlock both the stationary and angled locks, eliminating the need to operate two lock bodies separately, this significantly simplifies daily usage. Especially in scenarios involving carrying items, mobility impairments, or emergency evacuations, this integrated unlocking experience greatly improves access efficiency and human-computer interaction friendliness.

[0021] Finally, while maintaining the high security of deadbolt locks (such as supporting encrypted verification and anti-pry alarms), this combination lock also incorporates intelligent response capabilities, balancing security, economy, and convenience. Compared to existing technologies that require a separate complete electronic control system for each lock body, this invention optimizes resource allocation without sacrificing functionality, making it more suitable for the deployment and maintenance of large-scale residential, office, or hotel access control systems. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram from a first perspective showing a combination lock installed on a door, representing a typical embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram from a second perspective showing a combination lock installed on a door, representing a typical embodiment of the present invention.

[0024] Figure 3 This is a circuit block diagram of a combination lock according to a typical embodiment of the present invention.

[0025] Figure 4 This is a circuit block diagram of a combination lock according to an embodiment of the present invention.

[0026] Figure 5 This is a circuit block diagram of a combination lock according to another embodiment of the present invention.

[0027] Figure 6 This is a circuit block diagram of a combination lock according to another embodiment of the present invention.

[0028] Figure 7 This is a circuit block diagram of a combination lock according to another embodiment of the present invention. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0030] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0031] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0032] This invention provides a combination lock 10, which combines... Figure 1 and Figure 2 The combination lock 10 is used to install on the door 300 to control the relative movement between the door 300 and the door frame. The combination lock 10 includes a stationary lock 100 and a slanted lock 200. The stationary lock 100 and the slanted lock 200 are structurally independent and are both electronic locks.

[0033] In one embodiment, the deadbolt 100 receives an external unlocking request via a wired unlocking module 130. When the deadbolt 100 responds to the unlocking request and performs its own unlocking action, it synchronously outputs a control signal to the ramp 200 to trigger the ramp 200 to synchronously perform its unlocking action. In another embodiment, the deadbolt 100 and the ramp 200 are each equipped with a wireless communication module, independently receiving the same unlocking command from an external device, and synchronously performing their respective unlocking operations based on the command, thereby achieving coordinated unlocking of both.

[0034] The combination lock 10 is integrally installed on the side edge of the door body 300, which is rotatably mounted on the door frame via hinges. Correspondingly, the door frame is provided with two latch slots: a first latch slot and a second latch slot. Specifically, the fixed lock 100 is provided with a first latch 110, and the angled lock 200 is provided with a second latch 210; the first latch 110 corresponds to the position of the first latch slot, and the second latch 210 corresponds to the position of the second latch slot.

[0035] When the deadbolt 100 is locked, its first bolt 110 extends and engages in the first bolt groove, restricting the rotation of the door 300 relative to the door frame; when the deadbolt 100 is unlocked, the first bolt 110 retracts and disengages from the first bolt groove. Correspondingly, when the angled lock 200 is locked, its second bolt 210 extends and engages in the second bolt groove; when the angled lock 200 is unlocked, the second bolt 210 retracts and disengages from the second bolt groove.

[0036] Only when both the deadbolt 100 and the angled lock 200 are in the unlocked state, and their corresponding first bolt 110 and second bolt 210 have both exited their respective bolt slots, can the door body 300 rotate freely relative to the door frame, thereby opening the door.

[0037] Specifically, combined Figure 3 The lock 100 includes a first control unit 120, an unlocking module 130, a first motor 140, and a first latch 110. The first motor 140 is drively connected to the first latch 110 and drives the first latch 110 to reciprocate along its extension direction. The first control unit 120 is electrically connected to both the unlocking module 130 and the first motor 140. Upon receiving an unlocking signal from the unlocking module 130, the first control unit 120 controls the first motor 140 to rotate forward or reverse, thereby causing the first latch 110 to extend and insert into a first latch groove on the door frame to lock; or to retract the first latch 110 to exit the first latch groove to unlock.

[0038] Accordingly, the angled lock 200 includes a second control unit 220, a second motor 230, and a second latch 210. The second motor 230 is drively connected to the second latch 210 and is used to drive the second latch 210 to reciprocate along its extension and retraction direction; the second control unit 220 is electrically connected to the second motor 230. The second control unit 220 is configured to control the second motor 230 to rotate forward or reverse, thereby causing the second latch 210 to extend and engage with the second latch groove on the door frame to achieve locking; or to retract the second latch 210 to disengage from the second latch groove to achieve unlocking.

[0039] In a typical embodiment of the present invention, the unlocking module 130 is used to receive external unlocking requests and perform authentication or authorization verification on the unlocking requests. When the unlocking request is verified, the unlocking module 130 generates an unlocking signal and sends the unlocking signal to the first control unit 120.

[0040] Upon receiving the unlock signal, the first control unit 120 transmits it to the first motor 140 and forwards it to the second control unit 220. The first motor 140 starts in response to the unlock signal, driving the first latch 110 to retract and exit its slot on the door frame, thus unlocking the deadbolt 100. Simultaneously, upon receiving the unlock signal, the second control unit 220 outputs a corresponding control command to the second motor 230. The second motor 230 starts in response to this command, driving the second latch 210 to retract and exit its slot on the door frame, thus unlocking the angled lock 200.

[0041] Through the above control logic, the deadbolt 100 and the angled lock 200 can unlock together after receiving the same valid unlocking request. The user only needs to perform one operation to complete the unlocking process of the two lock bodies, which significantly improves the ease of use and emergency response efficiency.

[0042] In one embodiment, combined Figure 4 The unlocking module 130 includes a camera unit 131 and a face recognition unit 132, which is electrically connected to the camera unit 131 and the first control unit 120 respectively.

[0043] When the camera unit 131 detects a user's face within its field of view, it acquires image or video data containing the user's face and generates facial image data based on the data, thereby forming a facial unlock request; the camera unit 131 sends the facial unlock request to the facial recognition unit 132.

[0044] Upon receiving a face unlock request, the face recognition unit 132 parses and acquires the face image data, and extracts the user's facial feature data from it. The facial feature data may include feature vectors or feature templates generated by a preset feature extraction algorithm (such as a deep convolutional neural network). The face recognition unit 132 internally stores an identity database containing pre-stored registered facial feature data of authorized users.

[0045] The face recognition unit 132 compares the extracted facial feature data with the registered facial feature data in the identity database. If a registration record with a matching degree higher than a preset threshold is found, the current user's identity is determined to be legitimate, and an unlock signal is generated; if no record that meets the matching conditions is found, it is determined to be unauthorized access, an unauthorized access signal is generated, and no subsequent unlocking operation is triggered.

[0046] The face recognition unit 132 sends the generated unlock signal to the first control unit 120. Upon receiving the unlock signal, the first control unit 120 simultaneously outputs the unlock signal to the first motor 140 and the second control unit 220. The first motor 140 starts in response to the unlock signal, driving the first bolt 110 to retract and exit the first bolt groove on the door frame, thereby unlocking the deadbolt 100. At the same time, upon receiving the unlock signal, the second control unit 220 forwards it to the second motor 230. The second motor 230 starts in response to the signal, driving the second bolt 210 to retract and exit the second bolt groove on the door frame, thereby unlocking the angled lock 200.

[0047] Through the above structure and control logic, after receiving a valid face recognition result, the deadbolt 100 and the angled lock 200 can be unlocked in conjunction. The simultaneous unlocking of the two lock bodies can be completed without the user performing mechanical operation, realizing a contactless, highly secure and convenient door lock opening function based on face recognition.

[0048] In another embodiment, the unlocking module 130 includes a touch control and a verification unit, the verification unit being electrically connected to the touch control and the first control unit 120 respectively.

[0049] When a user touches or presses the touch control, the touch control is triggered and generates a corresponding touch unlock request, which is then sent to the verification unit.

[0050] The verification unit is configured to verify the legitimacy of the identity information associated with the touch unlock request. Verification methods include, but are not limited to: password comparison, biometric recognition (such as fingerprint recognition, palm print recognition), or matching of a preset operation sequence (such as multiple presses or swipes at a specific rhythm). If the verification result indicates that the user's identity is legitimate, the verification unit generates an unlock signal and sends the unlock signal to the first control unit 120.

[0051] Upon receiving the unlock signal, the first control unit 120 outputs the unlock signal to the first motor 140 and the second control unit 220 respectively. The first motor 140 starts in response to the unlock signal, driving the first bolt 110 to retract and exit the first bolt groove on the door frame, thereby unlocking the deadbolt 100. At the same time, upon receiving the unlock signal, the second control unit 220 forwards it to the second motor 230. The second motor 230 starts in response to the signal, driving the second bolt 210 to retract and exit the second bolt groove on the door frame, thereby unlocking the angled lock 200.

[0052] In a further embodiment, combined with Figure 5 The verification unit is a fingerprint verification unit 134, and the touch control is a fingerprint acquisition device 133.

[0053] When a user touches the fingerprint sensor 133 with their finger, the fingerprint sensor 133 responds to the contact operation by acquiring the user's fingerprint image and generating a touch unlock request containing the user's biometric information based on the image; the biometric information includes at least the original fingerprint image data or a fingerprint feature template extracted from it. The fingerprint sensor 133 sends the touch unlock request to the fingerprint verification unit 134.

[0054] Upon receiving a touch unlock request, the fingerprint verification unit 134 extracts the user's fingerprint feature data and compares it with the fingerprint feature templates of authorized users pre-stored in the local identity database. The identity database stores the fingerprint feature templates of registered, legitimate users.

[0055] If the extracted fingerprint feature data matches any registered template in the identity database to a degree that reaches or exceeds a preset threshold, the user's identity is deemed legitimate, and the fingerprint verification unit 134 generates an unlock signal; if no record that meets the matching conditions is found, the touch unlock request is deemed invalid, no unlock signal is generated, and no subsequent unlock operation is triggered.

[0056] In another further embodiment, the verification unit is a palmprint verification unit, and the touch control is a palmprint acquisition device. The palmprint acquisition device is used to acquire the texture image of the user's palm and generate corresponding palmprint feature data. The palmprint verification unit compares this feature data with a pre-stored authorized user palmprint template to perform identity verification and unlock signal generation operations. Its working principle is similar to the structure and function of the fingerprint verification unit 134 and fingerprint acquisition device 133 described above. The only difference is the type of biometric feature acquired and recognized. The remaining control logic, signal transmission path, and linkage unlocking mechanism are the same, so they will not be described again here.

[0057] In yet another embodiment, combined with Figure 6 The unlocking module 130 includes an input keyboard 136 and a password verification unit 137, which is electrically connected to the input keyboard 136 and the first control unit 120 respectively.

[0058] The input keyboard 136 is used to receive password information entered by the user and generate a password unlock request based on the input. After the user completes the password input operation on the input keyboard 136, the input keyboard 136 encapsulates the entered password data into a password unlock request and sends it to the password verification unit 137.

[0059] Upon receiving a password unlock request, the password verification unit 137 extracts the password data and compares it with the authorized password pre-stored in the local memory to perform identity verification. If the input password matches the authorized password (or meets preset matching rules, such as allowing certain error tolerance or dynamic password verification), the verification is deemed successful, and the password verification unit 137 generates an unlock signal; if they do not match, the verification is deemed unsuccessful, a password error signal is generated, and the unlock operation is not triggered.

[0060] The password verification unit 137 sends the generated unlock signal to the first control unit 120. Upon receiving the unlock signal, the first control unit 120 simultaneously outputs the unlock signal to the first motor 140 and the second control unit 220. The first motor 140 starts in response to the unlock signal, driving the first bolt 110 to retract and exit its slot on the door frame, thus unlocking the deadbolt 100. Simultaneously, upon receiving the unlock signal, the second control unit 220 forwards it to the second motor 230, which starts in response to the signal, driving the second bolt 210 to retract and exit its slot on the door frame, thus unlocking the angled lock 200. Through the above structure and control logic, the deadbolt 100 and the angled lock 200 unlock in tandem after successful password verification, ensuring synchronized operation of both lock bodies and improving operational convenience and system reliability.

[0061] In this embodiment, the input keyboard 136 can be a physical keypad keyboard or a virtual keyboard integrated on the touch panel. Its specific form does not affect the implementation of the technical solution of the present invention.

[0062] In a typical embodiment of the present invention, combined with Figure 7 The unlocking module 130 of the deadbolt 100 also includes a first wireless unlocking unit 138, and the unlocking module 130 of the angled lock 200 includes a second wireless unlocking unit 240; both the first wireless unlocking unit 138 and the second wireless unlocking unit 240 are configured to wirelessly receive wireless unlocking requests from external devices.

[0063] Specifically, when an external device (such as a smartphone, remote control, or smart terminal) transmits an encrypted or authenticated wireless unlocking request, the first wireless unlocking unit 138 receives the request wirelessly and verifies its legitimacy. If the verification is successful, the first wireless unlocking unit 138 generates an unlocking signal and sends it to the first control unit 120. In response to the unlocking signal, the first control unit 120 forwards it to the first motor 140. The first motor 140 drives the first latch 110 to retract, disengaging it from the first latch groove on the door frame, thereby completing the unlocking operation of the deadbolt 100.

[0064] Simultaneously, the second wireless unlocking unit 240 also receives the same wireless unlocking request via wireless communication and independently performs identity verification. If the verification is successful, the second wireless unlocking unit 240 generates an unlocking signal and sends it to the second control unit 220; the second control unit 220 outputs the unlocking signal to the second motor 230; the second motor 230 responds to the signal, driving the second bolt 210 to retract, causing it to exit the second bolt groove on the door frame, thereby completing the unlocking operation of the angled lock 200.

[0065] With the above structure, the first wireless unlocking unit 138 and the second wireless unlocking unit 240 are respectively integrated into the deadbolt 100 and the angled lock 200. They can synchronously receive and independently verify the same external wireless unlocking request. When the verification is successful, they trigger the unlocking action of their respective lock bodies, thereby realizing the linkage and synchronous wireless unlocking of the deadbolt 100 and the angled lock 200, improving system security and user operation convenience.

[0066] In some preferred embodiments, the wireless communication method may include, but is not limited to, Bluetooth, Wi-Fi, ZigBee, NFC, or Sub-1GHz radio frequency communication; the wireless unlock request may include encrypted credentials, digital signatures, or one-time dynamic tokens to enhance communication security and prevent replay attacks.

[0067] In a further embodiment, both the first wireless unlocking unit 138 and the second wireless unlocking unit 240 use the same wireless unit. The wireless units are electrically connected to the control unit corresponding to their respective locks, that is, the first wireless unlocking unit 138 is electrically connected to the first control unit 120, and the second wireless unlocking unit 240 is electrically connected to the second control unit 220.

[0068] The wireless unit integrates a Bluetooth communication module or a near field communication (NFC) device, supporting a variety of short-range wireless communication protocols to ensure compatibility with different types of external unlocking devices.

[0069] When a user's authorized unlocking device (such as a smartphone, smart card, or wearable device) enters the effective communication range of the wireless unit, the unlocking device establishes a wireless communication connection with the wireless unit and exchanges authentication data based on a preset security protocol. After completing the secure handshake process, the unlocking device sends an encrypted wireless unlocking request to the wireless unit.

[0070] The wireless unit receives the wireless unlock request and performs a validity verification on it. The verification includes, but is not limited to: identity authentication (such as device identifier or user credential verification), key matching (such as symmetric / asymmetric key decryption verification), and communication integrity verification (such as message authentication code (MAC) or digital signature verification). If the above verification results all meet the preset security conditions, the verification is deemed successful, the wireless unit generates an unlock signal, and sends the unlock signal to its corresponding control unit.

[0071] Specifically, the first wireless unlocking unit 138 sends the generated unlocking signal to the first control unit 120. In response to the signal, the first control unit 120 drives the first motor 140 to work, controlling the first bolt 110 to retract and exit the first bolt groove on the door frame, thereby unlocking the deadbolt 100. At the same time, the second wireless unlocking unit 240 sends the generated unlocking signal to the second control unit 220. The second control unit 220 drives the second motor 230 to work, controlling the second bolt 210 to retract and exit the second bolt groove on the door frame, thereby unlocking the angled lock 200.

[0072] With the above configuration, the deadbolt 100 and the angled lock 200 can complete the verification and execution in parallel by their respective independent wireless units after receiving the same legitimate wireless unlocking request, realizing the synchronous and coordinated unlocking of the two lock bodies, taking into account security, reliability and user experience.

[0073] In another further embodiment, both the first wireless unlocking unit 138 and the second wireless unlocking unit 240 support automatic unlocking based on geofencing technology. The first wireless unlocking unit 138 and the second wireless unlocking unit 240 are respectively associated with a preset geofencing area, which is defined with the installation location of the combination lock 10 as the center. Its coverage area can be dynamically configured or statically set according to the actual application scenario (such as residential access control, office area or smart apartment entrance).

[0074] When a user enters a pre-defined geofence area carrying an authorized device with positioning capabilities (such as a smartphone, smart bracelet, or dedicated positioning terminal), the authorized device obtains its current location information through methods such as Global Navigation Satellite System, Wi-Fi positioning, Bluetooth beacon, Ultra Wideband (UWB), or LAN-assisted positioning. Subsequently, the authorized device uploads this location information to the first wireless unlocking unit 138 and the second wireless unlocking unit 240 via a wireless communication network (such as cellular network, Wi-Fi, or Bluetooth); alternatively, the first wireless unlocking unit 138 and the second wireless unlocking unit 240 actively query and obtain the location status of the authorized device through a cloud service platform or local area network.

[0075] After determining that an authorized device has entered the geofence area, the first wireless unlocking unit 138 and the second wireless unlocking unit 240 verify the device's identity and legitimacy based on locally or remotely stored user authorization information. Verification may include device identifier matching, user binding relationship confirmation, security token verification, or encrypted credential parsing. If the verification result is successful, the first wireless unlocking unit 138 and the second wireless unlocking unit 240 automatically generate corresponding unlocking signals.

[0076] Specifically, the first wireless unlocking unit 138 sends the generated unlocking signal to the first control unit 120. In response to the signal, the first control unit 120 drives the first motor 140 to work, controlling the first bolt 110 to retract and exit the first bolt groove on the door frame, thereby realizing the automatic unlocking of the deadbolt 100. At the same time, the second wireless unlocking unit 240 sends the generated unlocking signal to the second control unit 220. The second control unit 220 drives the second motor 230 to work, controlling the second bolt 210 to retract and exit the second bolt groove on the door frame, thereby realizing the automatic unlocking of the angled lock 200.

[0077] Therefore, after the user's authorized device enters the preset geofence area and the identity verification is passed, the deadbolt 100 and the angled lock 200 can achieve seamless automatic unlocking in a linked and synchronized manner, which significantly improves the convenience, intelligence level and interactive experience of users entering and exiting.

[0078] In another embodiment, the angled lock 200 does not have a second wireless unlocking unit 240. Only the deadbolt 100 is equipped with a first wireless unlocking unit 138, which is used to receive wireless unlocking requests from external devices and verify the identity of the requests. When the verification is successful, the first wireless unlocking unit 138 generates an unlocking signal and sends the unlocking signal to the first control unit 120.

[0079] Upon receiving the unlock signal, the first control unit 120 synchronously forwards the unlock signal to the first motor 140 and the second control unit 220. In response to the unlock signal, the first motor 140 drives the first bolt 110 to retract, disengaging it from the first bolt groove on the door frame, thus completing the unlocking operation of the deadbolt 100. Simultaneously, the second control unit 220 outputs the received unlock signal to the second motor 230. In response to this signal, the second motor 230 drives the second bolt 210 to retract, disengaging it from the second bolt groove on the door frame, thus unlocking the angled lock 200.

[0080] With the above structure, although the inclined lock 200 is not equipped with a wireless communication module, it can still cooperate with the deadlock 100 to complete the synchronous unlocking action by means of the unlocking signal triggered by the first wireless unlocking unit 138 of the deadlock 100.

[0081] Therefore, in this embodiment, the combination lock 10 only needs to integrate the wireless unlocking function in the deadbolt 100, and the angled lock 200 does not need to be configured with a second wireless unlocking unit 240, which effectively simplifies the hardware structure, reduces material costs and assembly complexity, and improves the product's economy and market competitiveness.

[0082] In a typical embodiment of the present invention, combined with Figure 1 and Figure 2 A deadbolt 100 is installed on a door 300, which is used to separate indoor and outdoor spaces. The deadbolt 100 includes a front lock 150 located on the outdoor side and a rear lock 160 located on the indoor side.

[0083] A first square shaft is provided between the front lock 150 and the rear lock 160. The front lock 150 contains a lock cylinder, and the rear lock 160 has a knob 161. One end of the first square shaft is drivenly connected to the lock cylinder, and the other end is drivenly connected to the knob 161. At the same time, the first motor 140 is also drivenly connected to the first square shaft, and the first square shaft is further drivenly connected to the first latch 110. In this embodiment, the first square shaft serves as a core transmission component, used to transmit the rotational driving force from the lock cylinder, the knob 161, or the first motor 140 to the first latch 110, thereby driving it to extend or retract into the first latch groove on the door frame, realizing the locking and unlocking operations of the deadbolt 100.

[0084] Specifically, the lock cylinder has a keyhole, into which the user inserts a matching mechanical key and applies a rotational torque to rotate the lock cylinder. The lock cylinder transmits the rotational motion to the first bolt 110 via a first square shaft, thereby completing the manual locking or unlocking of the deadbolt 100. Similarly, the user can also manually unlock the deadbolt 100 locally by rotating the knob 161 on the indoor side, which drives the first bolt 110 via the first square shaft.

[0085] Furthermore, when the user operates the lock cylinder with a key or rotates the knob 161 to rotate the first square shaft, thereby causing the first bolt 110 to disengage from the first bolt groove to complete the unlocking action of the deadbolt 100, the first control unit 120 is configured to detect this mechanical unlocking event. For example, a position sensor, angle encoder, or micro switch, etc., installed on the first square shaft, lock cylinder, or first bolt 110, can be used to sense changes in the bolt state or rotation of the square shaft, and thereby determine that the deadbolt 100 has been manually unlocked.

[0086] After detecting that the deadbolt 100 has been unlocked, the first control unit 120 generates an unlock signal and sends it to the second control unit 220. In response to the signal, the second control unit 220 forwards it to the second motor 230; the second motor 230 drives the second bolt 210 to retract, causing it to exit the second bolt groove on the door frame, thereby realizing the automatic unlocking of the angled lock 200.

[0087] Therefore, in this embodiment, the user only needs to unlock the deadbolt 100 by conventional mechanical means (such as a key or knob 161) to trigger the automatic unlocking of the inclined lock 200 without any additional operation, which significantly improves the convenience of entry and exit and the overall user experience.

[0088] In a typical embodiment of the present invention, the angled lock 200 includes a pair of handles and a second square shaft. The pair of handles consists of an inner handle 250 disposed on the interior side of the door body 300 and an outer handle 260 disposed on the exterior side of the door body 300. The second square shaft is installed through the door body 300 along its thickness direction, with one end connected to the inner handle 250 and the other end connected to the outer handle 260; simultaneously, the second motor 230 is also coupled to the second square shaft, and the second square shaft is further connected to the second latch 210.

[0089] In this embodiment, the second square shaft serves as the core transmission component of the angled lock 200. It transmits the rotational driving force from the inner handle 250, the outer handle 260, or the second motor 230 to the second latch 210, thereby driving it to extend or retract from the second latch groove on the door frame, thus realizing the locking and unlocking operation of the angled lock 200. Specifically, the user can apply torque by operating the inner handle 250 or the outer handle 260, or the second motor 230 can be controlled to output driving force. All three can independently drive the second square shaft to rotate, thereby driving the second latch 210 to move, completing the mechanical or electric control of the angled lock 200.

[0090] In a further embodiment, the outer handle 260 has an arched structure and a paddle 261 is provided on it. The paddle 261 is connected to the second square shaft via a gear and rack mechanism, so that when the user presses down or lifts the outer handle 260, the paddle 261 drives the gear and rack mechanism to move, thereby driving the second square shaft to rotate and temporarily unlocking the angled lock 200 (such as opening a sliding door). The inner handle 250 is L-shaped and includes a handle part for gripping and a pivot part for mounting and fixing. The pivot part is connected to the second square shaft via a torsion spring, so that when the user rotates the inner handle 250, it overcomes the spring force of the torsion spring and drives the second square shaft to rotate, thereby unlocking or resetting the angled lock 200.

[0091] Therefore, users can easily lock or unlock the angled lock 200 by manually operating the inner handle 250 or the outer handle 260, taking into account both the convenience of daily use and the mechanical emergency function in case of emergency.

[0092] In summary, in the combination lock of the present invention, after receiving and verifying an external unlocking request, the stationary lock can not only autonomously perform the unlocking operation, but also synchronously control the angled lock to unlock. This linkage mechanism eliminates the need for users to perform separate unlocking operations on the stationary lock and the angled lock, significantly simplifying the unlocking process and improving the convenience and smoothness of entry and exit operations.

[0093] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions as those in the present invention.

[0094] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A combination lock, characterized in that, Including separate deadbolts and angled locks; The lock includes an unlocking module, a first control unit, and a first motor and a first locking tongue connected by a transmission. After the unlocking module verifies that the external unlocking request is successful, it sends an unlocking signal to the first control unit. The first control unit responds to the unlocking signal and controls the first motor to drive the first locking tongue to unlock. The inclined lock includes a second control unit and a second motor and a second locking tongue connected by a transmission. The second control unit responds to the unlocking signal forwarded by the first control unit and controls the second motor to drive the second locking tongue to unlock.

2. The combination lock as described in claim 1, characterized in that, The unlocking module includes a first wireless unlocking unit, and the inclined lock also includes a second wireless unlocking unit. After the first wireless unlocking unit and the second wireless unlocking unit verify the external wireless unlocking request, they respectively send unlocking signals to the first control unit and the second control unit. The first control unit and the second control unit respond to the unlocking signals and synchronously control the first motor to drive the first bolt to unlock and the second motor to drive the second bolt to unlock.

3. The combination lock as described in claim 1, characterized in that, The unlocking module includes a first wireless unlocking unit. After verifying that an external wireless unlocking request has been successfully completed, the first wireless unlocking unit sends an unlocking signal to the first control unit, and the first control unit forwards the unlocking signal to the second control unit.

4. The combination lock as described in claim 1, characterized in that, The unlocking module includes a camera unit and a face recognition unit. The face recognition unit is electrically connected to the camera unit and the first control unit, respectively. After the face recognition unit verifies the external face unlocking request, it sends an unlocking signal to the first control unit. The first control unit forwards the unlocking signal to the second control unit.

5. The combination lock as described in claim 1, characterized in that, The unlocking module includes a touch control and a verification unit. The verification unit is electrically connected to the touch control and the first control unit, respectively. The verification unit is a fingerprint verification unit or a palm print verification unit. The touch control corresponds to a fingerprint acquisition device or a palm print acquisition device. After the verification unit verifies the touch unlocking request, it sends an unlocking signal to the first control unit. The first control unit forwards the unlocking signal to the second control unit.

6. The combination lock as described in claim 1, characterized in that, The unlocking module includes an input keyboard and a password verification unit. The password verification unit is electrically connected to the input keyboard and the first control unit, respectively. The input keyboard corresponds to a physical input keyboard or a touch panel. After the password verification unit verifies the password unlocking request, it sends an unlocking signal to the first control unit. The first control unit forwards the unlocking signal to the second control unit.

7. The combination lock as described in claim 1, characterized in that, The lock also includes a lock cylinder with a keyhole. The lock cylinder is connected to the first bolt and is used to drive the first bolt to unlock. After the first control unit detects that the lock has been unlocked, it forwards the unlocking signal to the second control unit.

8. The combination lock as described in claim 7, characterized in that, The lock includes a front lock installed outside the door and a rear lock installed inside the door. The unlocking module is installed on the front lock, the first motor is installed on the rear lock, and a first square shaft is connected between the front lock and the rear lock. The first square shaft passes through the first lock tongue. The first motor is driven to one end of the first square shaft, and the other end of the first square shaft is driven to the lock cylinder.

9. The combination lock as described in claim 1, characterized in that, The angled lock includes an inner handle installed inside the door, an outer handle installed outside the door, and a second square shaft connecting the inner handle and the outer handle. The second lock tongue is telescopically installed inside the door, the second square shaft passes through the second lock tongue, and the second motor is drively connected to the second square shaft.

10. The combination lock as described in claim 9, characterized in that, The outer handle is arched and has a paddle. The paddle is connected to the second square shaft via a gear and rack mechanism. The inner handle is L-shaped and includes a handle part and a pivot part. The pivot part is connected to the second square shaft via a torsion spring.

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