A two-dimensional code intelligent door lock applied to a security scene

Abstract

This utility model discloses a QR code smart door lock for security applications, belonging to the field of smart door lock technology. It includes a smart door lock body, with a camera fixedly connected to the upper front of the body and a front handle fixedly connected to the lower bottom. A rotating rod is rotatably mounted below the camera via a bearing. A protective circular plate is fixedly connected to the front end of the rotating rod. A pull block is fixedly connected to the front end of the protective circular plate, and a first magnet is fixedly connected to the rear end of the protective circular plate. A second magnet is magnetically connected to the rear end of the first magnet, and the second magnet is fixedly connected to the outer wall of the smart door lock body close to it. Through the structural design of the protective circular plate, pull block, first magnet, rotating rod, and second magnet, this utility model facilitates the protection of the QR code sticker, reducing wear and tear and improving subsequent QR code scanning performance.

Description

Technical Field

[0001] This utility model relates to the field of smart door lock technology, and in particular to a QR code smart door lock applied in security scenarios. Background Technology

[0002] QR code smart locks are locks that are improved upon traditional mechanical locks, offering greater intelligence and convenience in terms of user security, identification, and management. QR code smart locks are the locking mechanism in access control systems.

[0003] A search revealed a Chinese patent disclosure for a reverse-scanning QR code smart door lock device (publication number CN209585904U). However, the design has some shortcomings. While the design includes a QR code scanning area to facilitate scanning, the area is exposed to the outside environment. Over time, this may accelerate the wear and tear on the QR code surface, thus affecting the scanning effect and resulting in poor usability.

[0004] Therefore, a QR code smart door lock for security scenarios is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a QR code smart door lock for security scenarios to solve the above-mentioned problems. It improves the problem that the QR code scanning area is exposed to the outside world, and with the use of time, the surface of the QR code may be worn down faster, thus affecting the scanning effect and resulting in poor performance.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a QR code smart door lock for security scenarios, comprising a smart door lock body, a camera fixedly connected to the upper front of the smart door lock body, a front handle fixedly connected to the lower bottom of the smart door lock body, a rotating rod rotatably mounted below the camera via a bearing, a shielding protective circular plate fixedly connected to the front end face of the rotating rod, a pull block fixedly connected to the front end face of the shielding protective circular plate, a first magnet fixedly connected to the rear end face of the shielding protective circular plate, a second magnet magnetically connected to the rear end face of the first magnet, and the second magnet fixedly connected to the outer wall of the smart door lock body close to it; a fixing groove is formed on the outer wall of the smart door lock body between the rotating rod and the second magnet, a fixing block is movably mounted inside the fixing groove, a mounting plate is fixedly connected to the front end face of the fixing block, a QR code sticker is fixedly connected to the front end face of the mounting plate, mounting blocks are fixedly connected to both sides of the mounting plate, and mounting screws are threaded through the surface of the mounting blocks.

[0007] Preferably, a rear handle is fixedly connected to the lower rear end of the smart door lock body, and a battery cover is rotatably disposed above the rear handle.

[0008] Preferably, the surface of the battery cover has multiple heat dissipation grooves, and the number of heat dissipation grooves is not less than three.

[0009] Preferably, a hollow circular groove is provided at the upper rear end of the smart door lock body, and a threaded cap is threaded on the inner wall of the hollow circular groove.

[0010] Preferably, a retaining plate is fixedly connected to the bottom of the hollow circular groove, and the surface of the retaining plate extends into the interior to form a retaining groove.

[0011] Preferably, a chip board is installed inside the slot, and a connecting plate is fixedly connected to one end of the chip board near the threaded cover.

[0012] The beneficial effects of this utility model are:

[0013] 1. Through the structural design of the shielding and protective circular plate, the pull block, the first magnet block, the rotating rod and the second magnet block, it is possible to easily shield and protect the QR code sticker, thereby reducing the wear of the QR code sticker and improving the scanning effect of the QR code in the later stage.

[0014] 2. Through the structural design of the mounting block, mounting screw, mounting plate, QR code sticker, fixing block, fixing groove, card plate, card slot, chip board, hollow circular groove, connecting plate and threaded cover, the QR code sticker can be easily disassembled and replaced, thus better meeting the usage needs of different scenarios. At the same time, it can facilitate the installation of the control chip, and after the control chip is installed, the threaded cover can be screwed into the hollow circular groove to protect the control chip. Attached Figure Description

[0015] Figure 1 This is a partial three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of a partial rear view of the present invention;

[0017] Figure 3 This is a partial structural diagram of the first and second magnet blocks, which are the main features of this utility model.

[0018] Figure 4 This is a partial structural diagram of the card slot and chip board, which are the main features of this utility model.

[0019] In the diagram: 1. Camera; 2. Protective circular plate; 3. Smart lock body; 4. Pull block; 5. Front handle; 6. Battery cover; 7. Heat dissipation slot; 8. Rear handle; 9. Mounting block; 10. Mounting screw; 11. Mounting plate; 12. First magnet; 13. QR code sticker; 14. Rotating rod; 15. Fixing block; 16. Fixing groove; 17. Second magnet; 18. Card plate; 19. Card slot; 20. Chip board; 21. Hollow circular groove; 22. Connecting plate; 23. Threaded cover. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] In practical implementation: such as Figure 1-4 As shown, a QR code smart door lock for security applications includes: a smart door lock body 3, a camera 1 fixedly connected to the upper front of the smart door lock body 3, a front handle 5 fixedly connected to the lower bottom of the smart door lock body 3, a rotating rod 14 rotatably mounted below the camera 1 via a bearing, and a shielding and protective circular plate 2 fixedly connected to the front end of the rotating rod 14.

[0022] A pull block 4 is fixedly connected to the front end face of the shielding and protective circular plate 2, a first magnet block 12 is fixedly connected to the rear end face of the shielding and protective circular plate 2, a second magnet block 17 is magnetically connected to the rear end face of the first magnet block 12, and the second magnet block 17 is fixedly connected to the outer wall of the smart door lock body 3 close to it.

[0023] A fixing groove 16 is provided on the outer wall of the smart door lock body 3 between the rotating rod 14 and the second magnet block 17. A fixing block 15 is movably arranged inside the fixing groove 16. A mounting plate 11 is fixedly connected to the front end face of the fixing block 15. A QR code sticker 13 is fixedly connected to the front end face of the mounting plate 11. Mounting blocks 9 are fixedly connected to both sides of the mounting plate 11. Mounting screws 10 are threaded through the surface of the mounting blocks 9.

[0024] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, when it is needed to scan the QR code on the QR code sticker 13, the protective circular plate 2 can be rotated by moving the pull block 4. When the protective circular plate 2 is rotated to the appropriate position, the QR code sticker 13 will be exposed to the outside, making it convenient for the user to scan the code. After scanning, the pull block 4 is released. At this time, the protective circular plate 2 will rotate and return to the initial position due to gravity. Then, the first magnet 12 and the second magnet 17 can be used to achieve magnetic adsorption and fixation, thereby preventing the protective circular plate 2 from being blown away by strong winds, thus improving the protective effect of the QR code sticker 13.

[0025] A rear handle 8 is fixedly connected to the lower rear end of the smart door lock body 3. A battery cover 6 is rotatably mounted above the rear handle 8. Multiple heat dissipation slots 7 are opened through the surface of the battery cover 6, with no less than three heat dissipation slots 7. A hollow circular groove 21 is opened at the upper rear end of the smart door lock body 3. A threaded cover 23 is threaded on the inner wall of the hollow circular groove 21. A retaining plate 18 is fixedly connected to the bottom of the hollow circular groove 21. A retaining groove 19 is opened on the surface of the retaining plate 18 extending into the interior. A chip board 20 is retained inside the retaining groove 19. A connecting plate 22 is fixedly connected to the end of the chip board 20 near the threaded cover 23.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when it is necessary to disassemble and replace the QR code sticker 13, the mounting screw 10 can be rotated until one end of the mounting screw 10 is detached from the mounting block 9. Then, the mounting plate 11 is moved along the outside until the fixing block 15 is detached from the fixing groove 16, thereby completing the disassembly of the QR code sticker 13. Similarly, the QR code sticker 13 can be installed. By making it easy to disassemble and replace the QR code sticker 13, it is easier to meet the usage needs of different scenarios. At the same time, the control chip can be installed by placing it into the groove on the chip board 20 and then moving the connecting plate 22 until the chip board 20 is inserted into the slot 19. After the control chip is installed, the threaded cover 23 can be screwed into the hollow circular groove 21 to protect the control chip.

[0027] In use, when scanning the QR code on the QR code sticker 13 is required, the protective circular plate 2 can be rotated by moving the pull block 4. When the protective circular plate 2 is rotated to the appropriate position, the QR code sticker 13 will be exposed, making it convenient for the user to scan the code. After scanning, the pull block 4 is released, and the protective circular plate 2 will rotate under the influence of gravity and return to its initial position. Then, the first magnet 12 and the second magnet 17 can cooperate to achieve magnetic adsorption and fixation, thereby preventing strong winds from blowing the protective circular plate 2 away and improving the protective effect of the QR code sticker 13. Furthermore, when it is necessary to disassemble and replace the QR code sticker 13, the mounting screw 10 can be rotated until the QR code sticker 13 is fully disassembled. One end of the mounting screw 10 is detached from the mounting block 9, and then the mounting plate 11 is moved along the outside until the fixing block 15 is detached from the fixing groove 16, thereby completing the disassembly of the QR code sticker 13. Similarly, the QR code sticker 13 can be installed. By facilitating the disassembly and assembly of the QR code sticker 13, it is possible to easily disassemble and replace the QR code sticker 13, thereby better meeting the usage needs of different scenarios. Finally, by placing the control chip into the groove on the chip board 20, and then moving the connecting plate 22 until the chip board 20 is inserted into the card slot 19, the installation of the control chip is completed. After the control chip is installed, the threaded cover 23 can be screwed into the hollow circular groove 21 to protect the control chip.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A QR code smart door lock for security applications, characterized in that, include: The smart door lock body (3) has a camera (1) fixedly connected to the front of the upper end of the smart door lock body (3), a front handle (5) fixedly connected to the lower end of the smart door lock body (3), a rotating rod (14) is rotatably set below the camera (1) through a bearing, and a shielding and protective round plate (2) is fixedly connected to the front end of the rotating rod (14). The front end face of the shielding and protective circular plate (2) is fixedly connected to a pull block (4), the rear end face of the shielding and protective circular plate (2) is fixedly connected to a first magnet block (12), the rear end face of the first magnet block (12) is magnetically connected to a second magnet block (17), and the second magnet block (17) is fixedly connected to the outer wall of the smart door lock body (3) close to it. A fixing groove (16) is provided on the outer wall of the smart door lock body (3) between the rotating rod (14) and the second magnet block (17). A fixing block (15) is movably arranged inside the fixing groove (16). An installation plate (11) is fixedly connected to the front end face of the fixing block (15). A QR code sticker (13) is fixedly connected to the front end face of the installation plate (11). Installation blocks (9) are fixedly connected to both sides of the installation plate (11). An installation screw (10) is threaded through the surface of the installation block (9).

2. A QR code smart door lock for security applications according to claim 1, characterized in that: A rear handle (8) is fixedly connected to the lower rear end of the smart door lock body (3), and a battery cover (6) is rotatably provided above the rear handle (8).

3. A QR code smart door lock for security applications according to claim 2, characterized in that: The surface of the battery cover (6) is provided with a plurality of heat dissipation grooves (7), and the number of heat dissipation grooves (7) is not less than three.

4. A QR code smart door lock for security applications according to claim 1, characterized in that: The smart door lock body (3) has a hollow circular groove (21) at the upper rear end, and a threaded cap (23) is threaded on the inner wall of the hollow circular groove (21).

5. A QR code smart door lock for security applications according to claim 4, characterized in that: The hollow circular groove (21) is fixedly connected to the bottom of the interior with a card plate (18), and the surface of the card plate (18) extends into the interior to form a card slot (19).

6. A QR code smart door lock for security applications according to claim 5, characterized in that: The card slot (19) is fitted with a chip board (20), and a connecting plate (22) is fixedly connected to one end of the chip board (20) near the threaded cover (23).

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