A new lock body that can be opened by Bluetooth and NFC

By introducing a mechanical emergency unlocking solution that combines a roller combination lock and an emergency key into the smart lock body, the reliability and security issues of existing smart locks in emergency situations are solved. This solution combines convenient electronic unlocking with reliable mechanical unlocking, thereby improving the user experience.

CN224679316UActive Publication Date: 2026-08-25FUZHOU ZHENGCHENG SECURITY SEALS CO LTD
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Patent Information

Application Number
CN202521997561.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-17
Publication Date
2026-08-25
Estimated Expiration
2035-09-17

AI Technical Summary

Technical Problem

Existing smart locks with Bluetooth and NFC unlocking functions have shortcomings in emergency unlocking. In case of power failure or wireless module failure, an emergency key is required to unlock the lock. However, emergency keys are inconvenient to obtain, easy to forget, lose, or be discovered by criminals, which affects security and reliability.

Method used

A novel lock body was designed, combining Bluetooth and NFC unlocking methods. It is equipped with a roller combination lock and an emergency key. Through the sensing area, protective plate, roller combination lock and emergency unlocking hole, it provides a mechanical emergency unlocking solution. The protective plate is stabilized by magnetic block adsorption and shaft connection, the emergency key is fixed by elastic clip, and the spring reset mechanism simplifies operation.

Benefits of technology

It provides convenient electronic unlocking for daily use and reliable mechanical unlocking for emergencies, enhancing security and reliability, preventing the emergency key from being lost or discovered, simplifying emergency operation procedures, and improving user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel lock body can pass through bluetooth and NFC and open the lock belongs to the technical field of lockset, it includes the lock body, the lock body top is provided with the lock bar, the lock body outside is provided with the response area, the lock body bottom is rotatably connected with the protection board, is seted up in the protection board and has the storage groove, the storage groove is placed with the emergency key, the utility model discloses the fusion of bluetooth, NFC two kinds of intelligent unlocking mode and emergency key mechanical unlocking mode, has met the use demand of user under different scenes, in the security aspect, the intelligent unlocking mode does not need entity key, has reduced the trouble of carrying the key, and the emergency unlocking process step is clear, and the operation of gyro wheel coded lock is simple and direct, and the rotatable connection design of protection board also makes the process of taking and placing emergency key more smooth, even under the emergency, user can also complete the operation quickly, as a whole, the lock body gives consideration to the intelligent convenient and safe and reliable, has greatly promoted the use experience of user.
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Description

Technical Field

[0001] This utility model belongs to the field of lock technology, specifically a new type of lock body that can be unlocked via Bluetooth and NFC. Background Technology

[0002] With the popularization of IoT technology and smart terminals, smart locks, as an upgrade of traditional mechanical locks, have been widely used due to their convenience and intelligence. Among them, smart locks that support Bluetooth and NFC unlocking use wireless communication technology to realize identity verification and unlocking operations, and can complete the unlocking without physical keys, which greatly improves the user experience and has become an important development direction in the current lock industry.

[0003] Currently, there are various smart lock products on the market with Bluetooth or NFC unlocking functions. These locks typically include a lock body, a wireless communication module (Bluetooth or NFC module), a control unit, a locking mechanism, and a power supply unit (such as a battery). The working principle is as follows: the user sends an unlocking signal to the lock body through an authorized smart device (such as a mobile phone, smart bracelet, NFC card, etc.). After the wireless communication module of the lock body receives the signal and the control unit verifies it, it drives the locking mechanism to unlock the lock.

[0004] The existing technology has the following shortcomings: Existing smart locks with Bluetooth and NFC unlocking functions have obvious shortcomings in emergency unlocking: when encountering situations such as power failure or wireless module failure that prevent electronic unlocking, an emergency key must be used to open the lock body, but the process of obtaining the emergency key is often quite troublesome. If the emergency key is carried by the user, there may be problems such as forgetting or losing the key, making it unusable in an emergency. If the emergency key is hidden near the lock body, on the one hand, its concealment is difficult to guarantee, making it easy for criminals to discover and posing a security risk; on the other hand, users may forget where it is hidden in an emergency, reducing the reliability of the smart lock in special circumstances and affecting the user experience. Utility Model Content

[0005] To overcome the aforementioned shortcomings, this utility model provides a novel lock body that can be unlocked via Bluetooth and NFC. This solves the problem that existing smart locks with Bluetooth and NFC unlocking functions have significant deficiencies in emergency unlocking: in case of power failure or wireless module malfunction, an emergency key is required to unlock the lock. However, emergency keys are inconvenient to obtain. If carried by the user, they are easily forgotten or lost, making them unusable in emergencies. If hidden near the lock body, they are not only poorly concealed and easily discovered by criminals, posing a security risk, but users may also forget the hiding location in an emergency. This reduces the reliability of the smart lock in special circumstances and affects the user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel lock body that can be unlocked via Bluetooth and NFC, optionally including a lock body, a lock bar at the top of the lock body, a sensing area on the outer side of the lock body, a protective plate rotatably connected to the bottom of the lock body, a roller combination lock fixedly installed on one side of the protective plate at the bottom of the lock body, the roller combination lock having multiple sets of rollers, a groove at the bottom of the lock body, an emergency unlocking hole in the groove, and a storage slot in the protective plate for placing an emergency key.

[0007] By adopting the above technical solution, the locking rod, as the core locking component, ensures the basic locking function. The sensing area provides hardware support for Bluetooth and NFC unlocking, meeting users' convenient electronic unlocking needs. The protective plate, in conjunction with the roller combination lock, not only provides physical protection for the emergency unlocking hole in the groove, but also controls the opening permission of the protective plate through mechanical password, improving the security of the emergency mechanism. The storage slot with built-in emergency key solves the problem of unlocking redundancy in emergency situations such as power failure or electronic module failure. The overall structure takes into account the convenience of intelligent unlocking and the reliability of mechanical emergency response, forming a complete locking and unlocking system.

[0008] Optionally, a magnetic block is embedded within the protective plate.

[0009] By adopting the above technical solution, the magnetic block's adsorption properties are used to achieve stable closure of the protective plate. When the protective plate is closed in the groove, the magnetic block can generate an adsorption force with the metal part at the bottom of the lock body, preventing the protective plate from opening on its own due to external forces such as vibration and collision. This not only ensures the sealing of the protective plate during daily use and prevents dust and moisture from entering the groove and contaminating the emergency unlocking hole and emergency key, but also provides an auxiliary fixing function when the user does not lock the roller combination lock, thus enhancing the stability and protection of the structure.

[0010] Optionally, a rotating shaft is rotatably connected between the protective plate and the groove.

[0011] By adopting the above technical solution, the pivot structure limits the movement trajectory of the protective plate, preventing it from falling off and being lost when opened. At the same time, it ensures that the protective plate can be accurately aligned and cover the groove when closed. Compared with detachable protective plates, the pivot connection reduces the risk of losing parts. Moreover, users only need to flip the protective plate in one direction to open and close it, simplifying the steps for retrieving the emergency key and improving the efficiency of operation in emergency situations.

[0012] Optionally, the sensing area includes a Bluetooth sensing module and an NFC sensing module, which are used to receive Bluetooth unlocking signals and NFC unlocking signals, respectively.

[0013] By adopting the above technical solutions, the Bluetooth sensing module supports remote contactless unlocking, which is suitable for users to operate in advance or when their hands are inconvenient. The NFC sensing module requires close-range sensing to unlock, which is faster and consumes less power. The two modes complement each other to meet the needs of different scenarios. At the same time, the dual-module design reduces the risk of failure of a single electronic component causing the lock to fail to unlock, thus improving the reliability of smart unlocking.

[0014] Optionally, the rollers have numbers evenly distributed on their outer circumference, and each set of rollers can rotate independently. The size of the storage slot is adapted to the emergency key, and an elastic clip is provided at the opening of the storage slot to fix the emergency key.

[0015] By adopting the above technical solutions, the independent rotation design of the rollers ensures the flexibility of password combinations. Users can set multi-digit passwords independently, which enhances the anti-cracking capability of the protective plate. The elastic clip and the storage slot of the appropriate size can not only firmly fix the emergency key to prevent it from falling off during the opening and closing of the protective plate, but also allow it to be taken out with a little external force when the key is needed. This balances the reliability of fixation and the convenience of use, avoiding the difficulty of unlocking caused by the key getting stuck or falling off in an emergency.

[0016] Optionally, a spring reset mechanism is provided between the locking rod and the lock body, so that the locking rod can automatically pop out under the action of the spring force after the lock body is unlocked.

[0017] By adopting the above technical solution, there is no need to manually pull the lock bar when unlocking. The spring force can drive the lock bar to automatically return to the open state, which is especially suitable for scenarios where users hold objects with both hands or where the operating space is limited. At the same time, the automatic pop-up feedback allows users to intuitively confirm that the lock has been successfully unlocked, avoiding operational errors caused by misjudgment and enhancing the smoothness and certainty of the user experience.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The lock body supports both Bluetooth and NFC smart unlocking methods, meeting the convenient needs of users who do not need to carry physical keys. It is compatible with various devices such as mobile phones and smart bracelets, adapting to different usage scenarios. Furthermore, through a mechanical emergency system composed of a roller combination lock, protective plate, and emergency key, it provides a reliable unlocking solution in the event of power failure or electronic malfunction, avoiding the risk of failure of a single unlocking method, thus forming a dual guarantee of "intelligent and efficient + mechanical backup". The magnetic adsorption and pivot connection design of the protective plate ensures a stable closure to prevent accidental opening under normal conditions and smooth opening and closing without jamming in emergencies. The elastic clips and adaptive size of the storage slot make it convenient to store and retrieve emergency keys and prevent them from being lost. The spring reset mechanism makes the lock bar pop out automatically, simplifying the operation process. At the same time, the independent digital rollers of the roller combination lock enhance the anti-hacking capability of the emergency system. Overall, a precise balance is achieved between convenient operation and security protection. Attached Figure Description

[0019] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model; Figure 2 This is a second-view schematic diagram of the overall structure of this utility model; Figure 3 This is a first-view schematic diagram of the open structure of the protective plate of this utility model; Figure 4 This is a second-view schematic diagram of the protective plate of this utility model in the open state.

[0020] In the diagram: 1. Lock body; 2. Lock rod; 3. Sensing area; 4. Protective plate; 5. Roller combination lock; 6. Roller; 7. Emergency unlocking hole; 8. Groove; 9. Storage slot. Detailed Implementation

[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments. Example

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: A new type of lock body that can be unlocked via Bluetooth and NFC includes a lock body 1, a lock bar 2 at the top of the lock body 1, a sensing area 3 on the outside of the lock body 1, a protective plate 4 rotatably connected to the bottom of the lock body 1, a roller combination lock 5 fixedly installed on one side of the bottom of the lock body 1 on the protective plate 4, the roller combination lock 5 having multiple sets of rollers 6, a groove 8 at the bottom of the lock body 1, an emergency unlocking hole 7 in the groove 8, and a storage slot 9 in the protective plate 4, where an emergency key is placed. Specifically, in daily use, users do not need complicated operations. They only need to bring a device with Bluetooth or NFC function (such as a mobile phone, smart bracelet, etc.) close to the sensing area 3 on the outside of the lock body 1. After data interaction with the sensing area 3 via Bluetooth or NFC signal and identity verification, the locking mechanism inside the lock body 1 will be triggered, and the lock rod 2 will open automatically, realizing convenient unlocking. In case of emergency situations such as power failure of the lock body 1 or electronic component failure, in which case the lock cannot be unlocked electronically, the user needs to operate the roller combination lock 5 on one side of the bottom protective plate 4 of the lock body 1, rotate multiple sets of rollers 6, and make the number combination on the rollers 6 match the preset password to unlock the protective plate 4. Then, since the protective plate 4 is rotatably connected to the bottom of the lock body 1, the protective plate 4 can be easily flipped open to expose the groove 8 at the bottom of the lock body 1. At this time, the emergency key stored in the storage slot 9 opened in the protective plate 4 is clearly visible. The user takes out the emergency key, inserts it into the emergency unlocking hole 7 in the groove 8, and turns the key to unlock. After that, the protective plate 4 can be reset. By integrating Bluetooth and NFC smart unlocking methods with emergency key mechanical unlocking, this lock meets the needs of users in different scenarios. In daily use, users can enjoy the convenience of smart unlocking, while in emergencies, the reliable mechanical unlocking method provides assurance, avoiding the predicament caused by the failure of a single unlocking method. In terms of security, the roller combination lock 5 provides reliable protection for the protective plate 4, preventing the emergency key from being taken without authorization. The cooperation between the groove 8 and the protective plate 4 provides good physical protection for the emergency unlocking hole 7 and the emergency key, reducing wear and contamination from the external environment and extending the service life of the emergency unlocking components. From an operational convenience perspective, the smart unlocking method eliminates the need for a physical key, reducing the inconvenience of carrying keys. The emergency unlocking process is clear, and the roller combination lock 5 is simple and intuitive to operate. The rotating connection design of the protective plate 4 also makes the process of taking out and putting away the emergency key smoother. Even in emergencies, users can quickly complete the operation. Overall, this lock body 1 combines smart convenience with security and reliability, greatly improving the user experience. Example

[0023] like Figures 1-4 As shown, a magnetic block is embedded in the protective plate 4, and a rotating shaft is rotatably connected between the protective plate 4 and the groove 8. The sensing area 3 includes a Bluetooth sensing module and an NFC sensing module, which are used to receive Bluetooth unlocking signals and NFC unlocking signals, respectively. Numbers are evenly distributed on the outer circumference of the roller 6, and each set of rollers 6 can rotate independently. The size of the storage slot 9 is adapted to the emergency key, and an elastic clip is provided at the opening of the storage slot 9 to fix the emergency key. A spring reset mechanism is provided between the locking rod 2 and the lock body 1. When the lock body 1 is unlocked, the locking rod 2 can automatically pop out under the action of the spring force. Specifically, in daily use, users can unlock the lock in two smart ways: First, turn on the Bluetooth function of a mobile phone or other device, and bring it close to the sensing area 3 on the outside of the lock body 1. After the Bluetooth sensing module in the sensing area 3 receives the matching Bluetooth unlocking signal, the lock body 1 unlocks, and the locking rod 2 automatically pops out under the action of the spring reset mechanism between it and the lock body 1, thus completing the unlocking. Second, use a device with NFC function to bring it close to the sensing area 3. After the NFC sensing module in the sensing area 3 receives the NFC unlocking signal and verifies it, the locking rod 2 is also triggered to pop out automatically. When it is necessary to lock, simply press the locking rod 2 to reset it. In case of an emergency requiring the use of the emergency key, the user rotates each set of independently rotating rollers 6 on the outer circumference of the roller combination lock 5, where numbers are evenly distributed. After entering the correct password, the protective plate 4 can be easily opened because it is connected to the groove 8 by a rotating shaft. The magnetic block embedded in the protective plate 4 can firmly hold the protective plate 4 in place under normal circumstances, preventing it from being opened accidentally. Opening it at this time is effortless. After opening, the emergency key in the storage slot 9 is stably placed because the size of the storage slot 9 is adapted to the key and the elastic clip at the opening is fixed in place. The user can easily take it out and insert it into the emergency unlocking hole 7 in the groove 8 to unlock the lock. After that, the protective plate 4 is closed, and the magnetic block is fixed again. The dual-sensor module with Bluetooth and NFC makes the unlocking method more flexible and meets the needs of different scenarios. The independent rotation of the roller 6 with numbers makes password setting and input convenient and highly secure. The magnetic block and the rotating shaft work together to ensure that the protective plate 4 is easy to open and close and stable under normal conditions. The matching size and elastic clip of the storage slot 9 make the emergency key safe to store and easy to retrieve. The spring reset mechanism makes the lock bar automatically pop out after unlocking, improving the convenience of operation. The overall design takes into account both intelligent efficiency and emergency reliability, greatly optimizing the user experience. The working principle of this utility model is as follows: First, the core of the lock body 1 adopts a dual-mode unlocking architecture of "intelligent + mechanical". In daily use, wireless unlocking is achieved through the Bluetooth sensing module and NFC sensing module integrated in the sensing area 3 on the outside of the lock body 1: when an authorized Bluetooth device or NFC device approaches the sensing area 3, the module receives and verifies the unlocking signal, triggers the locking mechanism inside the lock body 1 to act, and cooperates with the spring reset mechanism between the lock rod 2 and the lock body 1 to make the lock rod 2 automatically pop out to complete the unlocking. When locking, only pressing the lock rod 2 is needed to reset it. Secondly, when the electronic system fails, the user needs to operate the roller combination lock 5 at the bottom of the lock body 1, and enter the correct password by independently rotating the multiple sets of rollers 6 with numbers on the outer circumference to unlock the protective plate 4. The protective plate 4 is rotatably connected to the groove 8 through the pivot. After unlocking, it can be easily flipped open to expose the emergency unlocking hole 7 in the groove 8. At the same time, the storage slot 9 (fixed by the elastic clip) in the protective plate 4 will provide an emergency key. Inserting the emergency unlocking hole 7 will complete the mechanical unlocking. Finally, the magnetic block embedded in the protective plate 4 ensures a tight seal when not in use, preventing accidental opening or foreign object intrusion. The adaptive size and elastic clip design of the storage slot 9 ensure stable storage of the emergency key and facilitates quick retrieval. The independent digital roller 6 of the roller combination lock 5 enhances the anti-hacking capability of the emergency system.

[0024] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A novel lock body that can be unlocked via Bluetooth and NFC, comprising a lock body (1), characterized in that: The lock body (1) is provided with a lock rod (2) at the top, and a sensing area (3) is provided on the outside of the lock body (1). A protective plate (4) is rotatably connected to the bottom of the lock body (1). A roller combination lock (5) is fixedly installed on one side of the protective plate (4) at the bottom of the lock body (1). Multiple sets of rollers (6) are provided on the roller combination lock (5). A groove (8) is opened at the bottom of the lock body (1). An emergency unlocking hole (7) is opened in the groove (8). A storage slot (9) is opened in the protective plate (4). An emergency key is placed in the storage slot (9).

2. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: A magnetic block is embedded in the protective plate (4).

3. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: A rotating shaft is rotatably connected between the protective plate (4) and the groove (8).

4. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: The sensing area (3) includes a Bluetooth sensing module and an NFC sensing module, which are used to receive Bluetooth unlocking signals and NFC unlocking signals, respectively.

5. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: The rollers (6) have numbers evenly distributed on their outer circumference, and each set of rollers (6) can rotate independently.

6. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: The size of the storage slot (9) is adapted to the emergency key, and an elastic clip is provided at the opening of the storage slot (9) to fix the emergency key.

7. A novel lock body that can be unlocked via Bluetooth and NFC according to claim 1, characterized in that: A spring reset mechanism is provided between the locking rod (2) and the lock body (1). When the lock body is unlocked, the locking rod (2) can automatically pop out under the action of the spring force.