TF encryption card information shielding device

Abstract

The utility model relates to the technical field of TF encryption cards, and discloses a TF encryption card information shielding device, which comprises a shielding shell, and long rods are fixedly connected to two sides of the inner wall of the shielding shell. According to the information shielding device for the TF encryption card, a TF card body is placed in a storage box by a worker, the storage box slides into a shielding shell, then an L-shaped plate is pressed backwards to drive a first spring to store force, after the L-shaped plate is stored in a mounting shell, a sealing plate is inserted into the front end of the shielding shell, and a pull rod slides into the sealing plate; the L-shaped plate is loosened to release the force generated by the first spring, so that the first spring rebounds to pull the L-shaped plate to move forwards, the L-shaped plate abuts against the two sides of the closing plate, the closing plate is fixed to the front end of the shielding shell, comprehensive wrapping of the TF card body is achieved, and shielding of external signals is achieved through the special material of the shielding shell. The influence of an external magnetic field on an internal circuit of a chip of the TF card body is blocked, and electromagnetic radiation leakage generated by the TF card body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of TF encryption cards, in particular to an information shielding device for TF encryption cards. Background Art

[0002] A TF encryption card is a high-performance TF card integrating data storage, encryption and decryption, digital signature, identity authentication, and data integrity verification, providing functions such as data encryption and decryption, data integrity verification, and digital signature and verification, and can be widely applied to units with high requirements for information security.

[0003] The Chinese patent discloses an encrypted TF card with the authorization announcement number CN202025348U. This patented technology has key generation, data storage, and data encryption and decryption capabilities, encrypts the entire process of storage, transmission, reception, and backup, has reliable encrypted files, fast processing speed, and can adopt various packaging forms such as StandardSD, MiniSD, MicroSD, etc. It has the same strong device access ability as ordinary SD cards and can be widely applied to various terminals with built-in or external SD card slots such as PADs, mobile phones, laptops, and PCs.

[0004] In view of the above and related existing technologies, the inventor believes that there are often the following defects: in actual use, the existing TF encryption card lacks a protection mechanism when exposed, making the TF encryption card vulnerable to external electromagnetic field signal interference, resulting in the loss and damage of the files stored in the TF encryption card, being inconvenient to carry around, and reducing the protection performance of the TF encryption card. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that in the prior art, the TF encryption card is vulnerable to external signal interference and damage. For this reason, we propose an information shielding device for TF encryption cards.

[0006] To achieve the above purpose, the present application adopts the following technical solution: an information shielding device for TF encryption cards, including a shielding shell. Both sides of the inner wall of the shielding shell are fixedly connected with long rods. The surface of the long rods is slidably connected with sliding plates. The front end of the sliding plates is fixedly connected with a storage box. The TF card body is installed inside the storage box. The front end of the storage box is fixedly connected with a pull rod. The front end of the shielding shell is slidably connected with a closing plate. The inner wall of the closing plate is slidably connected with the surface of the pull rod. Both sides of the front end of the shielding shell are fixedly connected with mounting shells. The inner wall of the mounting shells is slidably connected with L-shaped plates. One end of the L-shaped plates is fixedly connected with a first spring. The other end of the first spring is fixedly connected with the inner wall of the mounting shells.

[0007] Preferably, both sides of the rear end of the skateboard are fixedly connected with second springs, and the rear ends of the second springs are fixedly connected with one side of the inner wall of the shielding case.

[0008] Preferably, the rear end of the skateboard is fixedly connected with an extension plate, and the rear end of the extension plate abuts against the rear end of the inner wall of the shielding case.

[0009] Preferably, a sliding rod is fixedly connected to the inner wall of the installation case, the surface of the sliding rod penetrates through one side of the L-shaped plate, and the surface of the sliding rod is slidably connected to one side of the L-shaped plate.

[0010] Preferably, extension blocks are fixedly connected to both sides of the inner wall of the shielding case, and one side of the extension block is fixedly connected to one end of the long rod.

[0011] Preferably, the second spring is placed on the surface of the long rod, and the inner wall of the second spring is slidably connected to the surface of the long rod.

[0012] Preferably, the shielding case is made of cobalt metal material.

[0013] The technical effects and advantages of the present utility model:

[0014] In the present utility model, after the staff places the TF card body in the storage box, and then moves the storage box along the surface of the skateboard and slides it into the shielding case, then presses the L-shaped plate backward to drive the first spring to store energy. After the L-shaped plate is retracted into the installation case, the closing plate is inserted into the front end of the shielding case, so that the pull rod slides into the closing plate. Release the force generated by the first spring by loosening the L-shaped plate, so that the first spring rebounds and pulls the L-shaped plate to move forward, reset the L-shaped plate, and make the L-shaped plate abut against both sides of the closing plate, fixing the closing plate at the front end of the shielding case, thereby realizing the full wrapping of the TF card body. The shielding of external signals is achieved through the special material of the shielding case, blocking the influence of the external magnetic field on the internal circuit of the chip of the TF card body, and reducing the leakage of electromagnetic radiation generated by the TF card body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the internal structure sectional view of the present utility model;

[0017] Figure 3 is the present utility model Figure 2 the partial enlarged view at A in;

[0018] Figure 4 is the present utility model Figure 2 the partial enlarged view at B in;

[0019] Figure 5Cross-sectional view of the storage structure of the present utility model;

[0020] Figure 6 For the present utility model Figure 5 Partial enlarged view of location C in the present utility model.

[0021] Legend: 1. Shielding case; 2. Long rod; 3. Slide plate; 4. Storage box; 5. TF card body; 6. Pull rod; 7. Closing plate; 8. Mounting case; 9. L-shaped plate; 10. First spring; 11. Second spring; 12. Extension plate; 13. Slide rod; 14. Extension block. Specific embodiments

[0022] The present utility model will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0023] See Figure 1 - Figure 6 As shown, the present utility model provides a TF encryption card information shielding device, which includes a shielding case 1. Both sides of the inner wall of the shielding case 1 are fixedly connected with long rods 2. A slide plate 3 is slidably connected to the surface of the long rods 2. The front end of the slide plate 3 is fixedly connected with a storage box 4;

[0024] A TF card body 5 is installed inside the storage box 4. A pull rod 6 is fixedly connected to the front end of the storage box 4. A closing plate 7 is slidably connected to the front end of the shielding case 1. The inner wall of the closing plate 7 is slidably connected to the surface of the pull rod 6. Both sides of the front end of the shielding case 1 are fixedly connected with mounting cases 8. An L-shaped plate 9 is slidably connected to the inner wall of the mounting case 8. One end of the L-shaped plate 9 is fixedly connected with a first spring 10; The other end of the first spring 10 is fixedly connected to the inner wall of the mounting case 8;

[0025] Analysis of the above technical solution shows that: The present utility model provides a TF encryption card information shielding device, which involves structures such as a shielding shell 1, a long rod 2, a sliding plate 3, a storage box 4, a TF card body 5, a pull rod 6, a closing plate 7, a mounting shell 8, an L-shaped plate 9, and a spring, etc. During the specific use process, the staff places the TF card body 5 in the storage box 4, then moves the storage box 4 along the surface of the sliding plate 3 and slides it into the shielding shell 1. After that, the L-shaped plate 9 is pressed backward to drive the first spring 10 to store energy, so that after the L-shaped plate 9 is retracted into the mounting shell 8, the closing plate 7 is inserted into the front end of the shielding shell 1. Then the pull rod 6 is slid into the closing plate 7, and the L-shaped plate 9 is released to release the force generated by the first spring 10, so that the first spring 10 rebounds and pulls the L-shaped plate 9 to move forward, resetting the L-shaped plate 9, so that the L-shaped plate 9 abuts against both sides of the closing plate 7, fixing the closing plate 7 at the front end of the shielding shell 1, thereby realizing the full-sided wrapping of the TF card body 5. Obviously, the shielding of external signals is achieved through the special material of the shielding shell 1, blocking the influence of the external magnetic field on the internal circuit of the chip of the TF card body 5 and reducing the leakage of electromagnetic radiation generated by the TF card body 5.

[0026] See Figure 2 and Figure 3 As shown, in this implementation: Both sides of the rear end of the sliding plate 3 are fixedly connected with second springs 11, and the rear ends of the second springs 11 are fixedly connected with one side of the inner wall of the shielding shell 1. When the staff pulls the storage box 4 outward to drive the sliding plate 3 to move on the surface, the sliding plate 3 pulls the second springs 11 to store energy. When the staff takes out the TF card body 5 stored in the storage box 4 and then releases the control of the storage box 4, the force generated by the release of the second springs 11 rebounds and pulls the sliding plate 3 to drive the storage box 4 to be retracted into the shielding shell 1, resetting the position of the storage box 4, which is convenient for the staff to take out or place the TF card body 5 in the storage box 4 and then retract the storage box 4 into the shielding shell 1 to shield the magnetic field of the TF card body 5.

[0027] See Figure 2 and Figure 3 As shown Figure 5 In this implementation: The rear end of the sliding plate 3 is fixedly connected with an extension plate 12, and the rear end of the extension plate 12 abuts against the rear end of the inner wall of the shielding shell 1. By providing the extension plate 12, the abutment against the rear end of the inner wall of the shielding shell 1 restricts the rebounding position of the second springs 11, so that when the second springs 11 are reset, they can only pull the sliding plate 3 to a specified position on the inner wall of the shielding shell 1, thereby realizing the precise docking of the pull rod 6 and the closing plate 7 after the storage box 4 is reset.

[0028] See Figure 2 and Figure 4As shown in the figure, in this embodiment: A slide bar 13 is fixedly connected to the inner wall of the installation shell 8. The surface of the slide bar 13 penetrates through one side of the L-shaped plate 9, and the surface of the slide bar 13 is slidably connected to one side of the L-shaped plate 9. By providing the slide bar 13, the movement trajectory of the L-shaped plate 9 is restricted, preventing the L-shaped plate 9 from tilting and shaking inside the installation shell 8 during movement, causing the limit of the L-shaped plate 9 on the closing plate 7 to become loose, thereby improving the stability of the L-shaped plate 9 and enhancing the tightness of the L-shaped plate 9 against the closing plate 7 for fixation.

[0029] See Figure 2 and Figure 4 As shown in the figure, in this embodiment: Extension blocks 14 are fixedly connected to both sides of the inner wall of the shielding shell 1. One side of the extension block 14 is fixedly connected to one end of the long rod 2. By providing the extension block 14 at the front end of the long rod 2, one end of the long rod 2 is closed, preventing the staff from pulling out the slide plate 3 and the storage box 4 from the long rod 2 or the shielding shell 1, causing the separation of the components and the TF card body 5 placed in the inner wall of the storage box 4 to fall.

[0030] See Figure 2 and Figure 3 As shown in the figure, in this embodiment: The second spring 11 is placed on the surface of the long rod 2, and the inner wall of the second spring 11 is slidably connected to the surface of the long rod 2. When the second spring 11 operates, through the sliding connection between the second spring 11 and the long rod 2, the second spring 11 can move along the surface of the long rod 2, preventing the second spring 11 from curling around each other when rebounding and affecting the normal operation of the components.

[0031] See Figure 1 As shown in the figure, in this embodiment: The shielding shell 1 is made of cobalt metal. By using the shielding shell 1 made of cobalt metal, the shielding shell 1 has a high signal shielding ability, can interfere with the magnetic field, shield the information transmission of the external signal to the TF card body 5 inside the shielding shell 1, reduce the electromagnetic radiation leakage generated by the shielding shell 1, and improve the information protection effect of the device on the TF card body 5.

[0032] Working principle: The staff places the TF card body 5 in the storage box 4, then moves the storage box 4 along the surface of the slide plate 3 and slides it into the shielding shell 1. Then, press the L-shaped plate 9 backward to drive the first spring 10 to store energy, so that after the L-shaped plate 9 is retracted into the installation shell 8, the closing plate 7 is inserted into the front end of the shielding shell 1, and the pull rod 6 slides into the closing plate 7. Release the force generated by the first spring 10 by loosening the L-shaped plate 9, so that the first spring 10 rebounds and pulls the L-shaped plate 9 forward to reset the L-shaped plate 9, making the L-shaped plate 9 abut against both sides of the closing plate 7 and fixing the closing plate 7 at the front end of the shielding shell 1, thereby realizing the full wrapping of the TF card body 5. The shielding of external signals is achieved through the special material of the shielding shell 1, blocking the influence of the external magnetic field on the internal circuit of the TF card body 5 chip and reducing the electromagnetic radiation leakage generated by the TF card body 5.

[0033] When the staff pulls the storage box 4 outward to drive the slide plate 3 to move on the surface, the slide plate 3 pulls the second spring 11 to store force. When the staff takes out the TF card body 5 stored in the storage box 4 and releases the control of the storage box 4, the second spring 11 releases the force generated, rebounds and pulls the slide plate 3 to drive the storage box 4 into the shielding shell 1, and resets the position of the storage box 4, so that the staff can take out or place the TF card body 5 in the storage box 4, and then the storage box 4 is put into the shielding shell 1 to shield the magnetic field of the TF card body 5.

[0034] The extended plate 12 is provided to abut against the rear end of the inner wall of the shielding shell 1, limiting the rebound position of the second spring 11, so that the second spring 11 can only pull the slide plate 3 to the specified position of the inner wall of the shielding shell 1 when resetting, thereby realizing the precise docking of the pull rod 6 and the closing plate 7 after the storage box 4 is reset. The sliding rod 13 is provided to limit the movement trajectory of the L-shaped plate 9 to prevent the L-shaped plate 9 from tilting and shaking in the installation shell 8 when moving, causing the limit of the L-shaped plate 9 on the closing plate 7 to loosen, thereby improving the stability of the L-shaped plate 9 and improving the tightness of the L-shaped plate 9 to be fixed against the closing plate 7. The extension block 14 provided at the front end of the long rod 2 is used to close one end of the long rod 2 to prevent the staff from pulling the slide plate 3 and the storage box 4 out of the long rod 2 or the shielding shell 1 to cause the components to separate, causing the TF card body 5 placed on the inner wall of the storage box 4 to fall off.

[0035] When the second spring 11 is in operation, the second spring 11 is slidably connected to the long rod 2, so that the second spring 11 can move along the surface of the long rod 2, thereby preventing the second springs 11 from curling up and causing entanglement when rebounding, thereby affecting the normal operation of the assembly. By adopting the shielding shell 1 made of cobalt metal, the shielding shell 1 has a higher signal shielding ability, can interfere with the magnetic field, shield the information transmission of the TF card body 5 inside the shielding shell 1 by the external signal, reduce the electromagnetic radiation leakage generated by the shielding shell 1, and improve the information protection effect of the device on the TF card body 5.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A TF encryption card information shielding device, comprising a shielding case (1), characterized in that: On both sides of the inner wall of the shielding case (1), long rods (2) are fixedly connected. A sliding plate (3) is slidably connected to the surface of the long rod (2). A storage box (4) is fixedly connected to the front end of the sliding plate (3). A TF card body (5) is installed inside the storage box (4). A pull rod (6) is fixedly connected to the front end of the storage box (4). A closing plate (7) is slidably connected to the front end of the shielding case (1). The inner wall of the closing plate (7) is slidably connected to the surface of the pull rod (6). On both sides of the front end of the shielding case (1), mounting cases (8) are fixedly connected. An L-shaped plate (9) is slidably connected to the inner wall of the mounting case (8). One end of the L-shaped plate (9) is fixedly connected to a first spring (10). The other end of the first spring (10) is fixedly connected to the inner wall of the mounting case (8).

2. The TF encryption card information shielding device according to claim 1, characterized in that: On both sides of the rear end of the sliding plate (3), second springs (11) are fixedly connected. The rear ends of the second springs (11) are fixedly connected to one side of the inner wall of the shielding case (1).

3. The TF encryption card information shielding device according to claim 1, characterized in that: An extension plate (12) is fixedly connected to the rear end of the sliding plate (3). The rear end of the extension plate (12) abuts against the rear end of the inner wall of the shielding case (1).

4. The TF encryption card information shielding device according to claim 1, characterized in that: A sliding rod (13) is fixedly connected to the inner wall of the mounting case (8). The surface of the sliding rod (13) penetrates through one side of the L-shaped plate (9). The surface of the sliding rod (13) is slidably connected to one side of the L-shaped plate (9).

5. The TF encryption card information shielding device according to claim 1, wherein: Extension blocks (14) are fixedly connected to both sides of the inner wall of the shielding case (1). One side of the extension block (14) is fixedly connected to one end of the long rod (2).

6. The TF encryption card information shielding device according to claim 2, characterized in that: The second spring (11) is placed on the surface of the long rod (2). The inner wall of the second spring (11) is slidably connected to the surface of the long rod (2).

7. The TF encryption card information shielding device according to claim 1, characterized in that: The shielding case (1) is made of cobalt metal material.

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