NFC electronic lock structure
Patent Information
- Application Number
- CN202522516313.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0003]在使用时，NFC电子锁上还安装有卡盒，卡盒用于固定卡片，以便于卡片贴合NFC读写器，便于进行识别，目前手机也具备NFC模块，其可以替代卡片来开启门锁，但是手机的NFC区域位置较高，放入卡盒内后，其手机的NFC区域难以和NFC读写器精准对齐，需要用户多次进行调整，使用较为不便；因此，针对上述问题提出一种NFC电子锁结构
1.本实用新型通过设置升降电机、螺杆、滑块和卡盒，在使用时，手机放入卡盒内，控制电路板启动升降电机，升降电机带动螺杆旋转，使第一滑块沿滑槽上下移动，从而驱动卡盒平稳升降，实现NFC读写器与手机NFC区域的精准对位，NFC读写器识别到手机的NFC信号后，控制电路板控制升降电机反转，带动螺杆反向旋转，使卡盒复位，完成一次读取动作，依靠上述结构，可以自动带动手机下移，使NFC区域的精准对位；
Smart Images
Figure CN224919022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic locks, specifically an NFC electronic lock structure. Background Technology
[0002] Currently, NFC electronic locks mainly consist of a lock body, an electric latch module, a control circuit board, and an NFC reader / writer. After the NFC reader / writer identifies user information, the control circuit board controls the opening and closing of the electric latch module. The latch inside the electric latch module retracts, thereby completing the unlocking action of the electronic lock. NFC electronic locks can achieve fast unlocking without a mechanical key, greatly improving the convenience and security of use.
[0003] In use, the NFC electronic lock also has a card holder to hold the card so that it can fit against the NFC reader for easy identification. Currently, mobile phones also have NFC modules, which can replace cards to unlock the door. However, the NFC area of the mobile phone is located high up. After the card is placed in the card holder, it is difficult for the NFC area of the mobile phone to be accurately aligned with the NFC reader, requiring the user to make multiple adjustments, which is inconvenient. Therefore, an NFC electronic lock structure is proposed to address the above problems. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes an NFC electronic lock structure.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The NFC electronic lock structure of this utility model includes a lock body, the interior of which is provided with a cavity. A control circuit board and an electric lock tongue module are installed in the cavity. An NFC reader / writer connected to the control circuit board is installed on the side of the lock body. A card box is provided on the side of the lock body and at the corresponding position of the NFC reader / writer. A first slider is fixedly connected to the side of the card box. A sliding groove is opened on the side of the cavity. The first slider passes through the sliding groove and is slidably connected to it. A screw is rotatably connected in the cavity. The screw passes through the first slider and is threadedly connected to it. A lifting motor is fixedly connected in the cavity. The output end of the lifting motor is fixedly connected to the screw.
[0006] Preferably, there are two slides, a guide block is fixedly connected to the side of the card box, the guide block and the slider are respectively located on both sides of the card box, the guide block passes through the slide and is slidably connected to it, and a guide rod is fixedly connected to the cavity, the guide rod passes through the guide block and is slidably connected to it.
[0007] Preferably, the electric latch module includes a housing, a latch block, and a geared motor. The housing is fixedly connected to the lock body, and the latch block is slidably connected to the middle of the housing. The side of the latch block penetrates the side wall of the housing, and the end of the latch block extends to the outside of the housing. The geared motor is fixedly connected to the housing, and a spring is fixedly connected between the end of the latch block and the inner side wall of the housing. A drive arm is fixedly connected to the output end of the geared motor, and protrusions are provided at corresponding positions on the side of the latch block and the drive arm.
[0008] Preferably, a rotating shaft is rotatably connected to the middle of the housing, the rotating shaft passes through the side wall of the lock body and is rotatably connected to it, a groove is provided in the middle of the lock tongue block, and a cam is fixedly connected to the rotating shaft, the cam being located in the groove.
[0009] Preferably, a torsion spring is installed at the rotatable connection between the shaft and the housing, and a handle is fixedly connected to the end of the shaft.
[0010] Preferably, the side of the NFC reader protrudes 1 to 4 centimeters relative to the surface of the lock body.
[0011] Preferably, a push-button switch electrically connected to the control circuit board is fixed to the bottom of the card holder.
[0012] The advantages of this utility model are: 1. This utility model, by setting up a lifting motor, a screw, a slider, and a card holder, allows the mobile phone to be placed in the card holder during use. The control circuit board starts the lifting motor, which drives the screw to rotate, causing the first slider to move up and down along the slide groove. This drives the card holder to move up and down smoothly, achieving precise alignment between the NFC reader and the NFC area of the mobile phone. After the NFC reader recognizes the NFC signal of the mobile phone, the control circuit board controls the lifting motor to reverse, driving the screw to rotate in the opposite direction, resetting the card holder and completing one reading action. Relying on the above structure, the mobile phone can be automatically moved down, ensuring precise alignment of the NFC area. 2. By setting a guide block and a guide rod, the guide block slides synchronously along the guide rod during the movement of the slider, ensuring the stability of the card box during lifting and lowering, and avoiding jamming or wear caused by deviation. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial cross-sectional view of the lock body of this utility model; Figure 3 This is a schematic diagram of the top structure of the lock body of this utility model; Figure 4 This is a schematic cross-sectional view of the shell structure of this utility model; Figure 5 This is a schematic diagram of the structure of the rotating shaft of this utility model.
[0015] In the diagram: 11. Lock body; 12. Control circuit board; 13. NFC reader / writer; 14. Card holder; 15. Slide rail; 16. Slider; 17. Lifting motor; 18. Screw; 21. Guide block; 22. Guide rod; 31. Housing; 32. Lock tongue block; 33. Gear motor; 34. Drive arm; 35. Protrusion; 41. Shaft; 42. Cam; 43. Groove; 5. Handle; 6. Push-button switch. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0017] Specific implementation examples are given below.
[0018] Please see Figure 1-5 As shown, an NFC electronic lock structure includes a lock body 11. The lock body 11 has an internal cavity, within which a control circuit board 12 and an electric latch module are installed. An NFC reader / writer 13 connected to the control circuit board 12 is mounted on the side of the lock body 11. A card holder 14 is located on the side of the lock body 11 corresponding to the NFC reader / writer 13. A first slider 16 is fixedly connected to the side of the card holder 14. A sliding groove 15 is formed on the side of the cavity, through which the first slider 16 passes and slidably connects. A screw 18 is rotatably connected inside the cavity. The screw 18 passes through the first slider 16 and is threadedly connected to it. A lifting motor 17 is fixedly connected inside the cavity. The output end of the lifting motor 17 is fixedly connected to the screw 18. Two slide grooves 15 are provided. A guide block 21 is fixedly connected to the side of the card box 14. The guide block 21 and the slider 16 are located on both sides of the card box 14. The guide block 21 passes through the slide groove 15 and is slidably connected to it. A guide rod 22 is fixedly connected inside the cavity. The guide rod 22 passes through the guide block 21 and is slidably connected to it. When in use, the mobile phone is placed in the card holder 14, and the control circuit board 12 starts the lifting motor 17. The lifting motor 17 drives the screw 18 to rotate, causing the first slider 16 to move up and down along the slide groove 15, thereby driving the card holder 14 to rise and fall smoothly, achieving precise alignment between the NFC reader 13 and the NFC area of the mobile phone. After the NFC reader 13 recognizes the NFC signal of the mobile phone, the control circuit board 12 controls the lifting motor 17 to reverse, driving the screw 18 to rotate in the opposite direction, so that the card holder 14 is reset, completing one reading action. Relying on the above structure, the mobile phone can be automatically moved down to achieve precise alignment of the NFC area, reducing the need for manual alignment by the user and making it convenient to use. During the movement of slider 16, guide block 21 slides synchronously along guide rod 22 to ensure the stability of card box 14 during lifting and lowering, and to avoid jamming or wear caused by offset.
[0019] Furthermore, such as Figure 1-5 As shown, the electric latch module includes a housing 31, a latch block 32, and a reduction motor 33. The housing 31 is fixedly connected inside the lock body 11, and the latch block 32 is slidably connected to the middle of the housing 31. The side of the latch block 32 penetrates the side wall of the housing 31, and the end of the latch block 32 extends to the outside of the housing 31. The reduction motor 33 is fixedly connected inside the housing 31, and a spring is fixedly connected between the end of the latch block 32 and the inner side wall of the housing 31. The output end of the reduction motor 33 is fixedly connected to... The lock has a drive arm 34, and a protrusion 35 is provided on the side of the lock tongue block 32 at the corresponding position of the drive arm 34; a rotating shaft 41 is rotatably connected to the middle of the housing 31, the rotating shaft 41 passes through the side wall of the lock body 11 and is rotatably connected to it, a groove 43 is provided in the middle of the lock tongue block 32, a cam 42 is fixedly connected to the rotating shaft 41, and the cam 42 is located in the groove 43; a torsion spring is installed at the rotatable connection between the rotating shaft 41 and the housing 31, and a handle 5 is fixedly connected to the end of the rotating shaft 41; When in use, after the NFC reader 13 senses the valid card information, the control circuit board 12 drives the reduction motor 33 to rotate the drive arm 34, which in turn moves the protrusion 35 on the latch block 32, causing the latch block 32 to slide along the housing 31 against the spring force, thereby realizing the retraction of the latch block 32 and completing the unlocking action. In use, a rotating shaft 41 is rotatably connected to the middle of the housing 31. The rotating shaft 41 passes through the side wall of the lock body 11. The cam 42 fixed on the rotating shaft 41 pushes the bolt block 32 to slide in the middle of the housing 31 as the rotating shaft 41 rotates, realizing the extension and retraction of the bolt block 32. When the handle 5 is rotated, the torsion spring undergoes elastic deformation, providing reset power. By rotating the handle 5, the bolt block 32 is forcibly retracted, which is used to unlock the bolt block 32 from the inside.
[0020] Furthermore, such as Figure 1-5As shown, the side end of the NFC reader / writer 13 protrudes 1 to 4 centimeters relative to the surface of the lock body 11; When in use, since the back of the phone has a protruding camera, it will affect the fit between the back of the phone and the side of the NFC reader 13. Therefore, the side of the NFC reader 13 protrudes 1 to 4 centimeters relative to the lock body 11 to accommodate the thickness of the camera.
[0021] Furthermore, such as Figure 1-5 As shown, a push-button switch 6, which is electrically connected to the control circuit board 12, is fixed to the bottom of the card box 14, and an NFC-powered unlocking module is installed inside the lock body 11. When unlocking, the phone is placed in the card holder 14, and the bottom of the phone presses down the push-button switch 6, triggering the control circuit board 12 and starting the lifting motor 17; when in use, the phone senses the NFC-powered unlocking module and uses the phone's NFC power to unlock.
[0022] Working principle: When in use, the mobile phone is placed in the card holder 14. The control circuit board 12 starts the lifting motor 17, which drives the screw 18 to rotate, causing the first slider 16 to move up and down along the slide groove 15. This drives the card holder 14 to move up and down smoothly, achieving precise alignment between the NFC reader 13 and the NFC area of the mobile phone. After the NFC reader 13 recognizes the NFC signal of the mobile phone, the control circuit board 12 controls the lifting motor 17 to reverse, driving the screw 18 to rotate in the opposite direction, so that the card holder 14 is reset, completing one reading action. Relying on the above structure, the mobile phone can be automatically moved down to achieve precise alignment of the NFC area, reducing the need for manual alignment by the user and making it convenient to use. During the movement of slider 16, guide block 21 slides synchronously along guide rod 22 to ensure the stability of card box 14 during lifting and lowering, and to avoid jamming or wear caused by offset. When in use, after the NFC reader 13 senses the valid card information, the control circuit board 12 drives the reduction motor 33 to rotate the drive arm 34, which in turn moves the protrusion 35 on the latch block 32, causing the latch block 32 to slide along the housing 31 against the spring force, thereby realizing the retraction of the latch block 32 and completing the unlocking action. In use, a rotating shaft 41 is rotatably connected to the middle of the housing 31. The rotating shaft 41 passes through the side wall of the lock body 11. The cam 42 fixed on the rotating shaft 41 pushes the bolt block 32 to slide in the middle of the housing 31 as the rotating shaft 41 rotates, realizing the extension and retraction of the bolt block 32. When the handle 5 is rotated, the torsion spring undergoes elastic deformation to provide reset power. By rotating the handle 5, the bolt block 32 is forcibly retracted to unlock the bolt block 32 from the inside. When in use, because the back of the phone has a protruding camera, it will affect the fit between the back of the phone and the side of the NFC reader 13. Therefore, the side of the NFC reader 13 protrudes 1 to 4 centimeters relative to the lock body 11 to accommodate the thickness of the camera. When unlocking, the phone is placed in the card holder 14, and the bottom of the phone is pressed down on the push-button switch 6, which triggers the control circuit board 12 and starts the lifting motor 17.
[0023] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An NFC electronic lock structure, comprising a lock body (11), wherein the lock body (11) has an internal cavity, a control circuit board (12) and an electric latch module are installed in the cavity, an NFC reader (13) connected to the control circuit board (12) is installed on the side of the lock body (11), and a card holder (14) is provided at the corresponding position on the side of the lock body (11) and the NFC reader (13); characterized in that: The card box (14) has a first slider (16) fixedly connected to its side. The cavity has a groove (15) on its side. The first slider (16) passes through the groove (15) and is slidably connected to it. A screw (18) is rotatably connected inside the cavity. The screw (18) passes through the first slider (16) and is threadedly connected to it. A lifting motor (17) is fixedly connected inside the cavity. The output end of the lifting motor (17) is fixedly connected to the screw (18).
2. The NFC electronic lock structure according to claim 1, characterized in that: Two slides (15) are provided. A guide block (21) is fixedly connected to the side of the card box (14). The guide block (21) and the slider (16) are located on both sides of the card box (14). The guide block (21) passes through the slide (15) and is slidably connected to it. A guide rod (22) is fixedly connected in the cavity. The guide rod (22) passes through the guide block (21) and is slidably connected to it.
3. The NFC electronic lock structure according to claim 2, characterized in that: The electric latch module includes a housing (31), a latch block (32), and a geared motor (33). The housing (31) is fixed inside the lock body (11), and the latch block (32) is slidably connected to the middle of the housing (31). The side of the latch block (32) penetrates the side wall of the housing (31), and the end of the latch block (32) extends to the outside of the housing (31). The geared motor (33) is fixed inside the housing (31), and a spring is fixed between the end of the latch block (32) and the inner side wall of the housing (31). A drive arm (34) is fixed to the output end of the geared motor (33), and a protrusion (35) is provided at the corresponding position of the side of the latch block (32) and the drive arm (34).
4. The NFC electronic lock structure according to claim 3, characterized in that: A rotating shaft (41) is rotatably connected to the middle of the housing (31). The rotating shaft (41) passes through the side wall of the lock body (11) and is rotatably connected to it. A groove (43) is provided in the middle of the lock tongue block (32). A cam (42) is fixed on the rotating shaft (41). The cam (42) is located in the groove (43).
5. The NFC electronic lock structure according to claim 4, characterized in that: A torsion spring is installed at the rotatable connection between the shaft (41) and the housing (31), and a handle (5) is fixed to the end of the shaft (41).
6. The NFC electronic lock structure according to claim 5, characterized in that: The side of the NFC reader (13) protrudes 1 to 4 centimeters relative to the surface of the lock body (11).
7. The NFC electronic lock structure according to claim 1, characterized in that: The bottom of the card holder (14) is fixed with a push-button switch (6) that is electrically connected to the control circuit board (12).