Intelligent door card anti-copy encryption shell

Through the sliding connection design of the annular groove, slide bar, and positioning bar, combined with the matching of the card pin and locking groove, aluminum alloy material and holographic anti-copying coating, the problem of difficult disassembly and insufficient anti-copying of traditional smart door cards is solved, achieving quick disassembly and high security.

CN224472037UActive Publication Date: 2026-07-07SHENZHEN EVERLEAD ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN EVERLEAD ELECTRONICS CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional smart access cards are cumbersome to disassemble and easily damaged, lack anti-copying capabilities, and pose security risks.

Method used

It adopts a sliding connection design with annular groove, slide bar, and positioning bar, combined with the matching of locking pin and locking groove. The outer shell and mounting shell are made of aluminum alloy and coated with a holographic anti-copying coating.

Benefits of technology

It enables quick disassembly and installation of the housing, improves maintenance efficiency, prevents the pattern from being completely copied, and enhances the security and service life of the door card.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to intelligent door card technical field discloses a kind of intelligent door card anti-copying encryption shell, including shell, annular groove is opened in the surface of shell, installation cavity is opened in the inside of shell, locking groove is opened in the inner wall of annular groove, the utility model is in the mode of pressing press-in pin and rotating installation shell, utilize the sliding connection of slide bar and locating rod in annular groove, drive installation shell to be smoothly detached from shell, greatly improve the disassembly efficiency, it is convenient to carry out quick overhaul and replacement to internal chip, avoid the problem that traditional door card is difficult to disassemble, inconvenient to maintain, simultaneously, holographic anti-copying coating adopts metal aluminum layer material, its special optical reflection effect is extremely easy to be destroyed in copying process, to effectively prevent pattern being copied completely, ensure the security and uniqueness of door card, avoid the security risk caused by door card being copied, not only effectively improve user experience, also significantly enhance the protection ability of intelligent door card.
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Description

Technical Field

[0001] This utility model relates to the field of smart door card technology, and in particular to a smart door card anti-copying encryption shell. Background Technology

[0002] With the widespread application of intelligent access control systems, smart access cards, as one of their core components, play a crucial role in identity recognition and access control. Through built-in chips and wireless communication technology, smart access cards can instantly complete identity verification, ensuring that only authorized personnel can enter specific areas. This not only improves the security of access control systems but also greatly enhances management efficiency, enabling enterprises, residential communities, and commercial venues to achieve efficient and convenient personnel access management.

[0003] Traditional smart access cards typically rely on screws for casing fixation. While this structure ensures stability to some extent, it reveals numerous drawbacks in practical use. Firstly, the screw-fixing method makes disassembling the card extremely cumbersome, requiring tools to loosen each screw individually. This is not only time-consuming and labor-intensive but also prone to causing screw stripping or casing deformation due to improper operation, thus damaging the card's structure. If the internal chip malfunctions or needs replacement, this complex disassembly process undoubtedly increases maintenance difficulty and cost, reducing the card's lifespan and reliability. Secondly, traditional access cards suffer from severely inadequate anti-counterfeiting capabilities. Their surface patterns or information mostly use ordinary printing processes, lacking effective anti-counterfeiting mechanisms, making them easily copied or tampered with. Once the card information is copied, unauthorized personnel can enter restricted areas using counterfeit cards, posing serious security risks and threatening the normal operation and security of the entire access control system. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an anti-copying encryption shell for smart door cards.

[0005] This utility model is achieved using the following technical solution: a smart door card anti-copying encryption shell, comprising a shell, an annular groove on the surface of the shell, an installation cavity inside the shell, a locking groove on the inner wall of the annular groove, an installation shell snapped onto the surface of the shell, several sliding rods fixedly connected to the surface of the installation shell, a positioning rod fixedly connected to the surface of the installation shell, a spring groove inside the positioning rod, a return spring fixedly connected to the inner wall of the spring groove, a locking pin fixedly connected to the surface of the return spring, and a holographic anti-copying coating on the surface of the installation shell.

[0006] The above technical solution allows for quick disassembly of the mounting shell by pressing the card pin and rotating the mounting shell, facilitating the inspection and replacement of the internal chip and improving the maintenance efficiency of the door card. The holographic anti-copying coating is easily damaged during the copying process, thus preventing the pattern from being completely copied and effectively enhancing the security of the door card.

[0007] As a further improvement to the above solution, both the slide rod and the positioning rod are slidably connected inside the annular groove.

[0008] The sliding connection design of the slide rod and positioning rod, as described above, ensures the stability of the mounting shell during rotation, avoids disassembly difficulties caused by structural loosening, and makes the disassembly and installation of the mounting shell smoother, reducing the difficulty of operation.

[0009] As a further improvement to the above solution, the locking pin is adapted to the locking groove.

[0010] Through the above technical solution, the matching design of the locking pin and the locking groove ensures that the mounting shell is firmly locked on the outer shell, preventing the mounting shell from loosening or falling off due to external force.

[0011] As a further improvement to the above solution, the holographic anti-copying coating is made of aluminum metal.

[0012] Through the above technical solution, the optical properties of the aluminum layer make the pattern easily damaged during the copying process, effectively preventing the door card pattern from being completely copied and greatly improving the security of the door card.

[0013] As a further improvement to the above solution, both the outer shell and the mounting shell are made of aluminum alloy.

[0014] Through the above technical solutions, aluminum alloy material has high strength and corrosion resistance, which can extend the service life of the door card shell.

[0015] As a further improvement to the above solution, a handle groove is provided on the surface of the mounting shell.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a sliding connection between a sliding rod and a positioning rod within an annular groove, achieved by pressing the locking pin and rotating the mounting shell. This facilitates smooth disassembly of the mounting shell from the outer casing, significantly improving disassembly efficiency and enabling rapid inspection and replacement of the internal chip. It avoids the difficulties in disassembling and maintaining traditional door cards. Furthermore, the holographic anti-copying coating, made of aluminum, possesses a unique optical reflection effect that is easily disrupted during the copying process, effectively preventing the complete replication of the pattern. This ensures the security and uniqueness of the door card, avoiding security risks caused by card duplication. It not only effectively enhances the user experience but also significantly strengthens the protective capabilities of the smart door card. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the annular groove of this utility model;

[0020] Figure 3 This is a schematic diagram of the slide bar of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0022] Explanation of key symbols:

[0023] 1. Outer shell; 2. Annular groove; 3. Mounting cavity; 4. Locking groove; 5. Mounting shell; 6. Slide rod; 7. Positioning rod; 8. Spring groove; 9. Return spring; 10. Locking pin; 11. Holographic anti-copying coating; 12. Handle groove. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-4This embodiment of a smart door card anti-copying encryption shell includes a shell 1. The surface of the shell 1 has an annular groove 2, and the interior of the shell 1 has an installation cavity 3. The inner wall of the annular groove 2 has a locking groove 4. An installation shell 5 is snapped onto the surface of the shell 1. Several sliding rods 6 are fixedly connected to the surface of the installation shell 5. A positioning rod 7 is fixedly connected to the surface of the installation shell 5. A spring groove 8 is formed inside the positioning rod 7, and a return spring 9 is fixedly connected to the inner wall of the spring groove 8. A locking pin 10 is fixedly connected to the surface of the return spring 9. The surface of the installation shell 5 is provided with a full... When the anti-copying coating 11 is applied, the operator presses the locking pin 10, causing the locking pin 10 to compress the reset spring 9. The locking pin 10 then retracts into the spring groove 8. Subsequently, the operator rotates the mounting shell 5. The rotation of the mounting shell 5 causes the sliding rod 6 and the positioning rod 7 to rotate inside the annular groove 2, causing the locking pin 10 to disengage from the locking groove 4. At this point, the mounting shell 5 and the outer shell 1 are no longer locked, and the operator can disassemble the mounting shell 5 to inspect and replace the internal chip. Meanwhile, the holographic anti-copying coating 11 is easily damaged during the copying process, thus preventing the pattern from being completely copied.

[0027] Both the slide rod 6 and the positioning rod 7 are slidably connected inside the annular groove 2. When the locking pin 10 disengages from the locking groove 4, the sliding connection between the slide rod 6 and the positioning rod 7 ensures that the mounting shell 5 can be smoothly removed from the outer shell 1.

[0028] The locking pin 10 is adapted to the locking groove 4, allowing the locking pin 10 to be precisely inserted into the locking groove 4, thereby firmly locking the mounting shell 5 onto the outer shell 1. When disassembly is required, pressing the locking pin 10 to disengage it from the locking groove 4 will release the locking state.

[0029] The holographic anti-copying coating 11 is made of aluminum alloy. The aluminum alloy material is used to create a special optical effect by utilizing its light-reflecting properties. During the copying process, the aluminum alloy layer is easily damaged, causing changes in the optical effect and making it impossible to completely copy the pattern.

[0030] Both the outer shell 1 and the mounting shell 5 are made of aluminum alloy. The aluminum alloy outer shell 1 and the mounting shell 5 can withstand a certain amount of external impact and maintain good performance in humid environments.

[0031] The surface of the mounting shell 5 is provided with a handle groove 12, through which personnel can disassemble the mounting shell 5 and separate it from the outer shell 1.

[0032] The implementation principle of the smart door card anti-copying encryption shell in this application embodiment is as follows: First, the user initiates the disassembly process by pressing the latch 10 on the mounting shell 5. Under pressure, the latch 10 compresses its internal return spring 9 and gradually retracts into the spring groove 8 within the positioning rod 7. As the latch 10 retracts, its original locking state, which matched the locking groove 4 on the inner wall of the annular groove 2 of the shell 1, is released. At this point, the user can grasp the handle groove 12 on the surface of the mounting shell 5 and begin to rotate the mounting shell 5. During rotation, the sliding rod 6 and the positioning rod 7 on the mounting shell 5 move along the annular groove... The inner wall of the 2 slides smoothly, ensuring the smoothness of the entire disassembly process. When the mounting shell 5 rotates to a certain angle, the latch 10 completely disengages from the area of ​​the locking groove 4, and the mounting shell 5 is unlocked from the outer shell 1. At this time, personnel can easily remove the mounting shell 5 from the outer shell 1, and then inspect or replace the chip in the mounting cavity 3. The holographic anti-copying coating 11 on the surface of the mounting shell 5 is made of aluminum metal, which has a special optical reflection effect and is easily damaged during the copying process, thereby effectively preventing the door card pattern from being completely copied and ensuring the security and uniqueness of the door card.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A smart door card anti-copying encryption shell, characterized in that, The device includes an outer shell (1), an annular groove (2) on the surface of the outer shell (1), an installation cavity (3) inside the outer shell (1), a locking groove (4) on the inner wall of the annular groove (2), an installation shell (5) snapped onto the surface of the outer shell (1), several sliding rods (6) fixedly connected to the surface of the installation shell (5), a positioning rod (7) fixedly connected to the surface of the installation shell (5), a spring groove (8) inside the positioning rod (7), a return spring (9) fixedly connected to the inner wall of the spring groove (8), a locking pin (10) fixedly connected to the surface of the return spring (9), and a holographic anti-copying coating (11) on the surface of the installation shell (5).

2. The smart door card anti-copying encryption shell as described in claim 1, characterized in that: Both the slide rod (6) and the positioning rod (7) are slidably connected inside the annular groove (2).

3. The smart access card anti-copying encryption shell as described in claim 1, characterized in that: The latch (10) is adapted to the locking groove (4).

4. The smart door card anti-copying encryption shell as described in claim 1, characterized in that: The holographic anti-copying coating (11) is made of aluminum metal.

5. The smart door card anti-copying encryption shell as described in claim 1, characterized in that: Both the outer shell (1) and the mounting shell (5) are made of aluminum alloy.

6. The smart access card anti-copying encryption shell as described in claim 1, characterized in that: The surface of the mounting housing (5) is provided with a handle groove (12).