A network security device based on SM4 encryption

Abstract

The present application relates to the technical field of network security equipment, and in particular to a network security equipment based on SM4 encryption, comprising a network security body, a data protection device and a ventilation body, wherein mounting brackets are fixedly connected to the front of the left and right sides of the network security body, a USB connector is fixedly connected to the right front side of the network security body, a data protection device is installed in front of the USB connector, and network ports are fixedly connected to the front of the network security body in a uniformly distributed manner. In the present application, by setting the network security body, mounting bracket, handle, USB connector, limiting hole, data protection device, network port, ventilation body, switch and display screen, the heat in the network security body can be actively dissipated through the ventilation body, making the use of the network security body more stable. At the same time, the data protection device will alarm when non-staff intend to unplug the data protection device and insert it into a USB flash drive, thereby protecting the network security body.

Description

Technical Field

[0001] The present application relates to the technical field of network security equipment, and specifically to a network security equipment based on SM4 encryption. Background Art

[0002] With the development of computer networks, more and more transactions rely on computers for processing, and a large amount of data information is transmitted through the network. The importance of data security has become increasingly prominent. Cryptography is an important support for ensuring information security. By encrypting information, SM4 is a symmetric encryption algorithm with the advantages of high efficiency and easy implementation. SM4 encryption is a typical computationally intensive task. Applying SM4 directly in network security equipment can enable network security equipment to further calculate and transmit information, ensuring the security of network information transmission.

[0003] When using traditional network security equipment, the network cable is directly installed on the network security equipment. With the upgrade of software, in order to cope with more complex information, the software system needs to be upgraded and maintained. At this time, a USB connector for connecting a USB flash drive will be set on the outside of the network security equipment. At this time, the USB connector is directly exposed to the outside. As long as you enter the computer room, you can connect the USB flash drive to the network security equipment. If the staff intentionally connects the USB flash drive containing a virus directly to the network security equipment, it will cause damage to the network security equipment and even threaten network security. Therefore, a network security device based on SM4 encryption is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a network security device based on SM4 encryption to solve the problem that non-staff members intentionally connect a USB flash drive containing a virus directly to the network security device, causing damage to the network security device or even threatening network security.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A network security device based on SM4 encryption includes a network security body, a data protection device and a ventilation body. The network security body is fixedly connected to the front of the left and right sides with mounting brackets, the front of the mounting brackets is fixedly connected to a handle, the front right side of the network security body is fixedly connected to a USB connector, the front of the USB connector is installed with a data protection device, the front of the network security body is fixedly connected to evenly distributed network ports, the front left side of the network security body is fixedly connected to a display screen, the front of the network security body is fixedly connected to a switch, and ventilation bodies are installed on both sides of the network security body.

[0007] Preferably, the data protection device includes an alarm device, an installation body, an insulating body, a installation shell, an insulating block, a first copper plate, a second copper plate, a wire and an electromagnetic device. The installation bodies are installed on both left and right sides of the alarm device, and the side of the installation body away from the alarm device is arranged in the network security body. The insulating body is installed at the bottom of the alarm device, and the electromagnetic device is installed at the rear of the alarm device. The installation shell is fixedly connected to the upper and lower sides of the rear of the alarm device, and the insulating block is fixedly connected to the top of the installation shell. The left and right sides of the bottom of the insulating block are fixedly connected to the first copper plates, and the second copper plates are fixedly connected to both sides of the center position of the bottom of the insulating block above. The end of the bottom of the first copper plate away from the insulating block and the end of the top of the second copper plate away from the insulating block are fixedly connected with wires, and the length of the second copper plate is twice the length of the first copper plate.

[0008] Preferably, the alarm device includes a fixed shell, a control body, an alarm body, a battery, a battery controller, a power line, a first conductive block and a cable. The control body is fixedly connected to the front of the fixed shell, the top of the control body is fixedly connected to the cable, the end of the cable away from the control body is fixedly connected to the alarm body, the outside of the alarm body is fixedly connected to the fixed shell, the bottom of the alarm body is fixedly connected to the wire, the alarm body is electrically connected to the second copper plate through the wire, the upper and lower sides of the rear of the control body are fixedly connected to the first conductive block, one end of the power line is fixedly connected to the battery controller, the other end of the power line is fixedly connected to the electromagnetic device, one side of the battery controller is fixedly connected to the battery, the outside of the battery is fixedly connected to the fixed shell, the top and rear of the battery are fixedly connected to the wire, the battery is electrically connected to the first copper plate provided below through the wire, an electromagnetic device is provided at the rear of the control body, mounting bodies are provided on both left and right sides of the electromagnetic device, and an insulating body is provided at the bottom of the fixed shell.

[0009] Preferably, the mounting body includes a push block, a connecting plate, a card plate, an insert block, a rubber sleeve, a slider, a limit rod and a locking spring, the push blocks are in total two and are respectively arranged in the left and right ends of the fixed shell, the push block is arranged on one side of the fixed shell and is slidably connected to the limit rod at the upper and lower ends, the limit rod is fixedly connected to the fixed shell at one end away from the push block, a locking spring is provided on the outside of the limit rod, the push block is arranged at a central position on one side of the fixed shell and is fixedly connected to the connecting plate, the connecting plate is provided with an insert block on the outside, one end of the connecting plate away from the push block is fixedly connected to the card plate, the card plate is arranged in the network security body, the insert block is provided on the outside of the insert block, limiting holes are provided on the left and right sides of the position where the network security body is fixedly connected to the USB connector, the outer side of the rubber sleeve is tightly fitted with the inner wall of the limiting hole opened on the network security body, and sliders are evenly distributed throughout the connecting plate, and the slider is fixedly connected to the insert block.

[0010] Preferably, the insulating body includes a supporting plate, an insulating splint, a connecting rod, a through groove and a limit block. The top of the supporting plate is fixedly connected to the fixed shell, and an installation groove is provided in the supporting plate. The front and rear sides of the inner wall of the installation groove provided by the supporting plate are fixedly connected with evenly distributed limit blocks. An insulating splint is provided in the installation groove provided by the supporting plate, and a connecting rod is fixedly connected to the right side of the bottom of the insulating splint. Through grooves corresponding to the limit blocks are respectively provided on the front and rear sides of one end of the insulating splint.

[0011] Preferably, the electromagnetic device includes an electromagnetic body, a conductive sheet, a plastic block, an insulating positioning plate, a second conductive block, an iron plate, a sliding rod and a reset spring, the left and right sides of the rear of the electromagnetic body are fixedly connected with an L-shaped conductive sheet, the rear end of the conductive sheet away from the electromagnetic body is fixedly connected to the first copper plate arranged above, a plastic block is provided on the front side of the electromagnetic body, a transversely arranged iron plate is fixedly connected to the rear side of the plastic block, sliding rods are provided on the left and right ends of the iron plate, the sliding rods are fixedly connected to the fixed shell, a reset spring is provided on the outer side of the rear end of the sliding rod, a vertically arranged insulating positioning plate is fixedly connected to the front side of the plastic block, the upper and lower ends of the front side of the insulating positioning plate are fixedly connected to the second conductive block, the second conductive block and the first conductive block are arranged in a one-to-one correspondence, and a live wire is fixedly connected to one side of the second conductive block.

[0012] Preferably, the ventilation main body includes a fixing frame, an installation frame, a dustproof net, bolts, a fixing plate, an electric fan, a power supply main body, a groove and a conductive spring. Ventilation slots are opened on the left and right sides of the network security main body. A fixing frame is provided at the position of the ventilation slot opened on the network security main body. A mounting frame is provided on the side of the fixing frame away from the network security main body. A dustproof net is provided between the mounting frame and the fixing frame. Bolts threadedly connected to the network security main body are penetrated through the mounting frame, the dustproof net and the fixing frame. A vertically arranged and evenly distributed fixing plate is fixedly connected to the fixing frame on the right side. An electric fan is installed on the side of the fixing plate close to the network security main body. Evenly distributed grooves are opened at the corresponding positions of the fixing frame on the right side. A conductive spring is fixedly connected to the groove opened in the fixing frame. A fixing groove is opened on the top right side of the network security main body. The network security main body is fixedly connected to the power supply main body through the fixed groove, and the conductive spring is tightly fitted with the conductive contact provided on the power supply main body.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. In this application, the network security body, mounting bracket, handle, USB connector, limit hole, data protection device, network port, ventilation body, switch and display screen can be provided to actively dissipate heat within the network security body through the ventilation body, making the network security body more stable to use. At the same time, the data protection device will sound an alarm when non-staff members attempt to unplug the data protection device and insert a USB flash drive, thereby protecting the network security body.

[0015] 2. In the present application, by providing a fixed shell, a control body, an alarm body, a battery, a battery controller, a power line, a first conductive block, a cable, a mounting shell, an insulating block, a first copper plate, a second copper plate, a wire, an electromagnetic body, a conductive sheet, a plastic block, an insulating positioning plate, a second conductive block, an iron plate, a sliding rod and a reset spring, the first copper plate and the second copper plate can be driven to move by the insulating block when the fixed shell is removed. After the first copper plate leaves the USB connector, the electromagnetic device is powered off. At this time, the second conductive block provided in the electromagnetic device can connect the control body and the battery. The control body is powered by the battery. After the control body is powered on, the alarm body is controlled by the cable to sound an alarm. The alarm body is transmitted to the network security body through the wire, the second copper plate and the USB connector. The network security body sounds an alarm through the network to prevent non-staff from using the USB connector, thereby ensuring network security. Regarding the safety of the main body, when in use, the current in the network security main body is sent into the electromagnetic main body through the USB connector under the action of the conductive sheet. The electromagnetic main body attracts the iron plate through magnetic force, causing the control main body to be disconnected, preventing the control main body from controlling the alarm main body to alarm. At the same time, the plastic block can insulate the outer side of the iron plate to prevent the current from being released through the iron plate. Under the action of the first conductive block, the power line, the second conductive block and the battery controller, a path can be formed between the control main body and the battery, thereby starting and shutting down the control main body to realize the alarm. The control main body is powered by the battery. After the control main body is powered on, the alarm main body is controlled to alarm through the wiring. The alarm main body is transmitted to the network security main body through the wire, the second copper plate and the USB connector. The network security main body alarms through the network, preventing non-staff from using the USB connector, thereby ensuring the safety of the network security main body.

[0016] 3. In the present application, the fixed shell, push block, connecting plate, card plate, insert block, rubber sleeve, slider, limit rod and locking spring are provided, and the push block can be pushed, and the push block drives the connecting plate and card plate to move, thereby facilitating the installation and removal of the fixed shell. At the same time, the slider can make the movement of the connecting plate more stable. The outer side of the rubber sleeve fits tightly with the limit hole opened in the network security body. The elasticity of the rubber sleeve itself prevents dust from entering the network security body, and at the same time makes the fixed shell more stable after installation.

[0017] 4. In the present application, by providing the supporting plate, insulating splint, connecting rod, through groove and limit block, the insulating splint can be directly inserted between the first conductive block and the second conductive block to prevent the control body from being energized, thereby preventing the staff from falsely alarming when using the USB connector. When the USB connector is not needed, the insulating splint is installed in the supporting plate so that the insulating splint is arranged at the bottom of the fixed shell and is not easily discovered by non-staff. After the insulating splint is placed in the supporting plate, the insulating splint is limited by the limit block to prevent the insulating splint from falling. At the same time, the insulating splint can be driven to move left and right in the supporting plate by the connecting rod so that the through groove opened on the insulating splint corresponds to the limit block, thereby facilitating the installation and removal of the insulating splint in the supporting plate.

[0018] 5. In the present application, by providing a fixing frame, an installation frame, a dust screen, bolts, a fixing plate, an electric fan, a power supply body, grooves, a conductive spring, a fixing slot and a ventilation slot, the air can be driven to circulate in the network security body under the action of the electric fan, dissipating heat from the network security body and making the network security body more stable to use. At the same time, the dust screen can prevent dust from entering during the heat dissipation process and prevent dust from accumulating in the network security body. After long-term use, the bolts can be directly removed to remove the fixing frame from the network security body, and then the installation frame and the dust screen can be taken out of the fixing frame and cleaned to prevent dust from clogging the dust screen, making the air circulation smoother. At the same time, the electric fan can be directly maintained after the fixing frame is removed, making the fan maintenance more convenient. When installing the fixing frame, the conductive spring contacts the power supply body, thereby directly powering the fan, making the disassembly of the fixing frame more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the data protection device of this application;

[0021] Figure 3 This is a schematic diagram of the rear view of the data protection device installed in this application;

[0022] Figure 4 This is a schematic diagram of the structure of the data protection device for this application;

[0023] Figure 5 This is a schematic diagram of the installation structure of the alarm device for this application;

[0024] Figure 6 This is a schematic diagram of the installation structure of the electromagnetic device of this application;

[0025] Figure 7 This is a schematic diagram of the rear view of the installation structure of the power line for this application;

[0026] Figure 8This is a schematic diagram of the installation structure of the main installation body of this application;

[0027] Figure 9 This is a schematic diagram of the installation structure of the slider in this application;

[0028] Figure 10 This is a schematic structural diagram of the insulating body of this application;

[0029] Figure 11 This is a schematic diagram of the installation structure of the limit block of this application;

[0030] Figure 12 This is a schematic diagram of the structure of the support plate for this application;

[0031] Figure 13 This is a schematic diagram of the structure of the electromagnetic body of this application;

[0032] Figure 14 This is a schematic diagram of the installation structure of the electromagnetic body of this application;

[0033] Figure 15 This is a schematic diagram of the rear view of the electromagnetic body of this application;

[0034] Figure 16 This is a schematic diagram of the installation structure of the second copper plate of this application from a bottom view;

[0035] Figure 17 This is a schematic diagram of the assembly structure of the ventilation body of this application;

[0036] Figure 18 This is a schematic diagram of the installation structure of the dustproof net for this application;

[0037] Figure 19 This is a schematic diagram of the rear view of the installation structure of the electric fan of this application;

[0038] Figure 20 This is a schematic diagram of the installation structure of the conductive reed of this application;

[0039] Figure 21 This is a schematic diagram of the coordination between the conductive spring and the power supply body of this application.

[0040] Figure: 1. Network security body; 2. Mounting frame; 3. Handle; 4. USB connector; 5. Limiting hole; 6. Data protection device; 61. Alarm device; 611. Fixing shell; 612. Control body; 613. Alarm body; 614. Battery; 615. Battery controller; 616. Power line; 617. First conductive block; 618. Cable; 62. Mounting body; 621. Push block; 622. Connecting plate; 623. Card plate; 624. Insert block; 625. Rubber sleeve; 626. Slider; 627. Limiting rod; 628. Clamping spring; 63. Insulating body; 631. Support plate; 632. Insulating splint; 633. Connecting rod; 6 34. Through slot; 635. Limit block; 64. Mounting shell; 65. Insulating block; 66. First copper plate; 67. Second copper plate; 68. Wire; 69. Electromagnetic device; 691. Electromagnetic body; 692. Conductive sheet; 693. Plastic block; 694. Insulating positioning plate; 695. Second conductive block; 696. Iron plate; 697. Sliding rod; 698. Reset spring; 7. Network port; 8. Ventilation body; 81. Fixing frame; 82. Mounting frame; 83. Dust net; 84. Bolt; 85. Fixing plate; 86. Electric fan; 87. Power supply body; 88. Groove; 89. Conductive spring; 9. Switch; 10. Display screen; 11. Fixing slot; 12. Ventilation slot. DETAILED DESCRIPTION

[0041] See also Figure 1-21 , this application provides a technical solution:

[0042] A network security device based on SM4 encryption includes a network security body 1, a data protection device 6 and a ventilation body 8. The network security body 1 is fixedly connected to the front of the left and right sides with mounting brackets 2, the front of the mounting bracket 2 is fixedly connected to a handle 3, the front right side of the network security body 1 is fixedly connected to a USB connector 4, the front of the USB connector 4 is installed with a data protection device 6, the front of the network security body 1 is fixedly connected to evenly distributed network ports 7, the front left side of the network security body 1 is fixedly connected to a display screen 10, the front front of the network security body 1 is fixedly connected to a switch 9, and ventilation bodies 8 are installed on both sides of the network security body 1. Through this arrangement, the ventilation body 8 can actively dissipate the heat in the network security body 1, making the network security body 1 more stable to use. At the same time, the data protection device 6 will alarm when non-staff intend to unplug the data protection device 6 and insert a USB flash drive, thereby protecting the network security body 1.

[0043] like Figure 1-8As shown, the data protection device 6 includes an alarm device 61, a mounting body 62, an insulating body 63, a mounting shell 64, an insulating block 65, a first copper plate 66, a second copper plate 67, a wire 68 and an electromagnetic device 69. The mounting body 62 is installed on both sides of the left and right sides of the alarm device 61. The side of the mounting body 62 away from the alarm device 61 is set in the network security body 1. The insulating body 63 is installed at the bottom of the alarm device 61. The electromagnetic device 69 is installed at the rear of the alarm device 61. The mounting shell 64 is fixedly connected to the upper and lower sides of the rear of the alarm device 61. The insulating block 65 is fixedly connected to the top of the mounting shell 64. The first copper plate 66 is fixedly connected to the left and right sides of the bottom of the insulating block 65. The upper insulating block 65 is fixed on both sides of the center of the bottom A second copper plate 67 is fixedly connected, and a wire 68 is fixedly connected to the end of the bottom of the first copper plate 66 away from the insulating block 65 and the end of the top of the second copper plate 67 away from the insulating block 65. The length of the second copper plate 67 is twice the length of the first copper plate 66. The alarm device 61 includes a fixed shell 611, a control body 612, an alarm body 613, a battery 614, a battery controller 615, a power line 616, a first conductive block 617 and a cable 618. The front of the fixed shell 611 is fixedly connected to the control body 612, the top of the control body 612 is fixedly connected to the cable 618, the end of the cable 618 away from the control body 612 is fixedly connected to the alarm body 613, and the outer side of the alarm body 613 is fixedly connected to the fixed shell 611 The bottom of the alarm body 613 is fixedly connected to the wire 68, and the alarm body 613 is electrically connected to the second copper plate 67 through the wire 68. The first conductive block 617 is fixedly connected to the upper and lower sides of the rear of the control body 612. One end of the power line 616 is fixedly connected to the battery controller 615, and the other end of the power line 616 is fixedly connected to the electromagnetic device 69. One side of the battery controller 615 is fixedly connected to the battery 614. The outer side of the battery 614 is fixedly connected to the fixed shell 611. The top and rear of the battery 614 are fixedly connected to the wire 68. The battery 614 is electrically connected to the first copper plate 66 provided below through the wire 68. An electromagnetic device 69 is provided at the rear of the control body 612, and a mounting body is provided on both sides of the electromagnetic device 69. 62. An insulating body 63 is installed at the bottom of the fixed shell 611. Through this arrangement, the first copper plate 66 and the second copper plate 67 can be driven to move by the insulating block 65 when the fixed shell 611 is removed. After the first copper plate 66 leaves the USB connector 4, the electromagnetic device 69 is powered off. At this time, the electromagnetic device 69 can be connected to the control body 612. The control body 612 is powered by the battery 614. After the control body 612 is powered on, the alarm body 613 is controlled by the cable 618 to sound an alarm. The alarm body 613 is transmitted to the network security body 1 through the wire 68, the second copper plate 67 and the USB connector 4. The network security body 1 sounds an alarm through the network to prevent non-staff from using the USB connector 4, thereby ensuring the safety of the network security body 1.

[0044] like Figure 2-9 As shown, the installation body 62 includes a push block 621, a connecting plate 622, a card plate 623, an insert block 624, a rubber sleeve 625, a slider 626, a limit rod 627 and a locking spring 628. There are two push blocks 621 and they are respectively arranged at the left and right ends of the fixed shell 611. The push block 621 is arranged on one side of the fixed shell 611 and the upper and lower ends are slidably connected to the limit rod 627. The end of the limit rod 627 away from the push block 621 is fixedly connected to the fixed shell 611. A locking spring 628 is provided on the outside of the limit rod 627. The push block 621 is fixedly connected to the connecting plate 622 at the central position on one side of the fixed shell 611. The outside of the connecting plate 622 is provided with an insert block 624. The end of the connecting plate 622 away from the push block 621 is fixedly connected to the card plate 623. The card plate 623 is arranged in the network security body 1. A rubber sleeve 625 is provided on the outside of 24. Limiting holes 5 are provided on both sides of the position where the network security body 1 is fixedly connected to the USB connector 4. The outer side of the rubber sleeve 625 fits tightly with the inner wall of the limiting hole 5 provided on the network security body 1. Sliders 626 are evenly distributed throughout the connecting plate 622. The slides 626 are fixedly connected to the inserting block 624. Through this arrangement, the pushing block 621 can be pushed, and the pushing block 621 drives the connecting plate 622 and the card plate 623 to move, so as to facilitate the installation and disassembly of the fixed shell 611. At the same time, the sliders 626 can make the movement of the connecting plate 622 more stable. The outer side of the rubber sleeve 625 fits tightly with the limiting hole 5 provided on the network security body 1. Under the action of the elasticity of the rubber sleeve 625 itself, dust is prevented from entering the network security body 1, and at the same time, the fixed shell 611 is more stable after installation.

[0045] like Figure 4-12As shown, the insulating body 63 includes a supporting plate 631, an insulating clamping plate 632, a connecting rod 633, a through slot 634 and a limit block 635. The top of the supporting plate 631 is fixedly connected to the fixed shell 611, and a mounting slot is provided in the supporting plate 631. The inner wall of the mounting slot provided by the supporting plate 631 is fixedly connected to the front and rear sides of the inner wall with evenly distributed limit blocks 635. The mounting slot provided by the supporting plate 631 is provided with an insulating clamping plate 632, and the right side of the bottom of the insulating clamping plate 632 is fixedly connected to the connecting rod 633. The front and rear sides of one end of the insulating clamping plate 632 are respectively provided with through slots 634 corresponding to the limit blocks 635. Through this arrangement, the insulating clamping plate 632 can be directly inserted into the first conductive block 617 and the second conductive block 695. Between, prevent the control body 612 from being energized, thereby preventing the staff from making a false alarm when using the USB connector 4. When the USB connector 4 is not needed, the insulating splint 632 is installed in the supporting plate 631, so that the insulating splint 632 is set at the bottom of the fixed shell 611 and is not easily discovered by non-staff. After the insulating splint 632 is placed in the supporting plate 631, the insulating splint 632 is limited by the limit block 635 to prevent the insulating splint 632 from falling. At the same time, the insulating splint 632 can be driven to move left and right in the supporting plate 631 by the connecting rod 633, so that the through groove 634 opened on the insulating splint 632 corresponds to the limit block 635, thereby facilitating the installation and removal of the insulating splint 632 in the supporting plate 631.

[0046] As shown in FIG2-16, the electromagnetic device 69 includes an electromagnetic body 691, a conductive sheet 692, a plastic block 693, an insulating positioning plate 694, a second conductive block 695, an iron plate 696, a slide rod 697 and a return spring 698. The left and right sides of the rear of the electromagnetic body 691 are fixedly connected with an L-shaped conductive sheet 692. The end of the rear side of the conductive sheet 692 away from the electromagnetic body 691 is fixedly connected to the first copper plate 66 provided above. A plastic block 693 is provided on the front side of the electromagnetic body 691. A transversely arranged iron plate 696 is fixedly connected to the rear side of the plastic block 693. Slide rods 697 are provided on the left and right ends of the iron plate 696. The slide rod 697 is fixedly connected to the fixed shell 611. A return spring 698 is provided on the outer side of the rear end of the slide rod 697. The front side of the plastic block 693 is fixedly connected with a vertically arranged insulating positioning plate 694. The upper and lower ends of the front side of the insulating positioning plate 694 are fixed. A second conductive block 695 is fixedly connected, and the second conductive block 695 is arranged in a one-to-one correspondence with the first conductive block 617. A power-on wire 616 is fixedly connected to one side of the second conductive block 695. Through this arrangement, the current in the network security body 1 can be sent into the electromagnetic body 691 through the USB connector 4 under the action of the conductive sheet 692. The electromagnetic body 691 attracts the iron plate 696 through magnetic force to break the circuit of the control body 612, preventing the control body 612 from controlling the alarm body 613 to alarm. At the same time, the plastic block 693 can insulate the outside of the iron plate 696 to prevent the current from being released through the iron plate 696. Under the action of the first conductive block 617, the power-on wire 616, the second conductive block 695 and the battery controller 615, a path can be formed between the control body 612 and the battery 614, thereby starting and closing the control body 612 to realize the alarm.

[0047] like Figure 1 、 2, 17, 18, 19, 20, 21 and 20, the ventilation body 8 includes a fixing frame 81, an installation frame 82, a dustproof net 83, a bolt 84, a fixing plate 85, an electric fan 86, a power supply body 87, a groove 88 and a conductive spring 89. Ventilation slots 12 are provided on both sides of the network security body 1. A fixing frame 81 is provided at the position of the ventilation slots 12 provided on the network security body 1. A mounting frame 82 is provided on the side of the fixing frame 81 away from the network security body 1. A dustproof net is provided between the mounting frame 82 and the fixing frame 81. The dust net 83, the mounting frame 82, the dust net 83 and the fixed frame 81 are all provided with bolts 84 threadedly connected to the network security body 1. The right fixed frame 81 is fixedly connected to a vertically arranged and evenly distributed fixing plate 85. An electric fan 86 is installed on the side of the fixing plate 85 close to the network security body 1. The right fixed frame 81 is provided with evenly distributed grooves 88 at a position corresponding to the fixing plate 85 on the side close to the network security body 1. A conductive spring 89 is fixedly connected to the groove 88 provided in the fixing frame 81. A fixing slot 11 is provided at the top right side of the network security body 1. The network security body 1 is fixedly connected to the power supply body 87 through the fixing slot 11. The conductive spring 89 is tightly fitted with the conductive contact provided on the power supply body 87. Through this arrangement, the air can be driven to circulate in the network security body 1 under the action of the electric fan 86 to dissipate heat for the network security body 1, making the use of the network security body 1 more stable. At the same time, the dustproof net 83 can prevent dust from entering during the heat dissipation process and prevent dust from accumulating in the network security body 1. After long-term use, the bolts 84 can be directly removed to remove the fixing frame 81 from the network security body 1. Then the installation frame 82 and the dustproof net 83 can be taken out of the fixing frame 81 for cleaning to prevent dust from clogging the dustproof net 83 and making the air circulation smoother. At the same time, after the fixing frame 81 is removed, the electric fan 86 can be directly maintained, making the maintenance of the electric fan 86 more convenient. When installing the fixing frame 81, the conductive spring 89 contacts the power supply body 87 to directly power the electric fan 86, making the disassembly of the fixing frame 81 more convenient.

[0048] Workflow: When using this network security device based on SM4 encryption, first install the network security body 1 to a suitable position in the computer room through the mounting bracket 2, then turn on the power, insert the network cable into the network port 7 set on the network security body 1, and then turn on the network security body 1 through the switch 9. The operating status of the network security body 1 can be displayed through the display 10. During use, the network security body 1 sends current to the fan 86 through the power supply body 87 and the conductive reed 89. The fan 86 drives the air flow to blow out the heat in the network security body 1. At the same time, the dustproof net 83 can prevent dust from entering the network security body 1, making the network security body 1 run more stably. At the same time, the network security body 1 is connected to the USB The connector 4 sends current into the first copper plate 66, and the first copper plate 66 provided below sends current into the battery 614 through the wire 68 to ensure that the battery 614 has sufficient power. At the same time, the first copper plate 66 provided above sends current into the electromagnetic body 691 through the conductive sheet 692. The electromagnetic body 691 is energized to generate magnetic force. The magnetic force generated by the electromagnetic body 691 attracts the iron plate 696, and the iron plate 696 slides on the outside of the slide bar 697. At the same time, the iron plate 696 drives the insulating positioning plate 694 to move toward the electromagnetic body 691 through the plastic block 693. The insulating positioning plate 694 drives the second conductive block 695 away from the first conductive block 617, and the control body 612 is powered off. When a U disk needs to be inserted through the USB connector 4 When upgrading or maintaining the network security main body 1, directly push the connecting rod 633 to the right, and the connecting rod 633 drives the insulating splint 632 to move. When the insulating splint 632 cannot move, the through slot 634 provided therein corresponds to the limit block 635. At this time, the insulating splint 632 can be taken out from the supporting plate 631. When the insulating splint 632 moves downward, the through slot 634 provided on the insulating splint 632 moves downward from the outside of the limit block 635. After the insulating splint 632 is taken out, the insulating splint 632 is inserted into the fixed shell 611 through the supporting plate 631. At this time, the insulating splint 632 is arranged between the first conductive block 617 and the second conductive block 695. Then, the two push blocks 621 are pressed at the same time. The push block 621 The card plate 623 is driven to move by the connecting plate 622, and at the same time, the connecting plate 622 moves outside the slider 626 provided in the plug block 624 until the card plate 623 moves to the rear of the plug block 624, and then the fixed shell 611 can be moved forward, and the fixed shell 611 drives the installation shell 64 and the insulating block 65 to move, and the first copper plate 66 and the second copper plate 67 at the bottom of the insulating block 65 gradually move in the USB connector 4. After the first copper plate 66 leaves the USB connector 4, the USB connector 4 cannot supply power to the electromagnetic body 691 through the upper first copper plate 66 and the conductive sheet 692, and the electromagnetic body 691 loses the electromagnetic force. At this time, the reset spring 698 pushes the iron plate 696 to move, and the iron plate 696 drives the insulating positioning plate 694 to move through the plastic block 693.The insulating positioning plate 694 pushes the second conductive block 695 and the first conductive block 617 to clamp the insulating clamping plate 632. The insulating clamping plate 632 prevents the first conductive block 617 from contacting the second conductive block 695, preventing the control body 612 from being energized. At this time, the alarm body 613 cannot be activated, so the alarm will not be triggered. After that, the U disk storing the upgrade or maintenance data can be inserted into the USB connector 4 to transfer the data to the network security body 1 to upgrade or maintain the network security body 1. If the insulating clamping plate 632 is not inserted into the fixed shell 611, after the first copper plate 66 leaves the USB connector 4, the electromagnetic body 691 is powered off. At this time, the reset spring 698 pushes the iron plate 696 to move, and the iron plate 696 is moved by the plastic Material block 693 drives insulating positioning plate 694 to move, and second conductive block 695, to which insulating positioning plate 694 is fixedly connected, contacts first conductive block 617. At this point, battery controller 615 controls battery 614 to deliver current through power line 616, second conductive block 695, and first conductive block 617 to control body 612. Control body 612 is powered on and starts, sending an alarm signal to alarm body 613 via flat cable 618. Alarm body 613 transmits the alarm information to USB connector 4 via wire 68 and second copper plate 67. This triggers an alarm through network security body 1, promptly alerting personnel and preventing non-staff from transmitting malicious data to network security body 1, thereby ensuring the security of network security body 1.

[0049] This article uses specific examples to illustrate the principles and implementation methods of this application. The above examples are only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A network security device based on SM4 encryption, comprising a network security body (1), a data protection device (6) and a ventilation body (8), characterized in that: The network security body (1) is fixedly connected to mounting frames (2) on the front of the left and right sides, the mounting frames (2) are fixedly connected to a handle (3) on the front of the network security body (1), a USB connector (4) is fixedly connected to the right front side of the network security body (1), a data protection device (6) is installed in front of the USB connector (4), the network security body (1) is fixedly connected to evenly distributed network ports (7) on the front, a display screen (10) is fixedly connected to the left front side of the network security body (1), a switch (9) is fixedly connected to the front of the network security body (1), and ventilation bodies (8) are installed on both the left and right sides of the network security body (1); The data protection device (6) comprises an alarm device (61), a mounting body (62), an insulating body (63), a mounting shell (64), an insulating block (65), a first copper plate (66), a second copper plate (67), a wire (68) and an electromagnetic device (69). The mounting bodies (62) are mounted on both the left and right sides of the alarm device (61). The side of the mounting body (62) away from the alarm device (61) is arranged in the network security body (1). The insulating body (63) is mounted on the bottom of the alarm device (61). The electromagnetic device (69) is mounted at the rear of the alarm device (61). The alarm device (61) is fixedly connected to a mounting shell (64) on both upper and lower sides of the rear, an insulating block (65) is fixedly connected to the upper part of the mounting shell (64), a first copper plate (66) is fixedly connected to both left and right sides of the bottom of the insulating block (65), a second copper plate (67) is fixedly connected to both sides of the central position of the bottom of the upper insulating block (65), and a wire (68) is fixedly connected to the end of the bottom of the first copper plate (66) away from the insulating block (65) and the end of the top of the second copper plate (67) away from the insulating block (65), and the length of the second copper plate (67) is twice the length of the first copper plate (66); The alarm device (61) comprises a fixed shell (611), a control body (612), an alarm body (613), a battery (614), a battery controller (615), a power line (616), a first conductive block (617) and a flat cable (618). The front of the fixed shell (611) is fixedly connected to the control body (612), the top of the control body (612) is fixedly connected to the flat cable (618), the end of the flat cable (618) away from the control body (612) is fixedly connected to the alarm body (613), and the outer side of the alarm body (613) is connected to the fixed shell (611). 1) Fixed connection, the bottom of the alarm body (613) is fixedly connected to the wire (68), the alarm body (613) is electrically connected to the second copper plate (67) through the wire (68), the top rear of the battery (614) is fixedly connected to the wire (68), the battery (614) is electrically connected to the first copper plate (66) provided below through the wire (68), an electromagnetic device (69) is provided at the rear of the control body (612), and mounting bodies (62) are provided on both left and right sides of the electromagnetic device (69), and an insulating body (63) is installed at the bottom of the fixed shell (611); The electromagnetic device (69) comprises an electromagnetic body (691), a conductive sheet (692), a plastic block (693), an insulating positioning plate (694), a second conductive block (695), an iron plate (696), a slide bar (697) and a return spring (698). The left and right sides of the rear of the electromagnetic body (691) are fixedly connected to the conductive sheet (692) arranged in an L shape. The end of the conductive sheet (692) away from the electromagnetic body (691) at the rear is fixedly connected to the first copper plate (66) arranged above.

2. A network security device based on SM4 encryption according to claim 1, characterized in that: The control body (612) is fixedly connected to first conductive blocks (617) on both upper and lower sides of its rear portion. One end of the power line (616) is fixedly connected to a battery controller (615). The other end of the power line (616) is fixedly connected to an electromagnetic device (69). One side of the battery controller (615) is fixedly connected to a battery (614). The outer side of the battery (614) is fixedly connected to a fixed shell (611).

3. A network security device based on SM4 encryption according to claim 1, characterized in that: The mounting body (62) includes a push block (621), a connecting plate (622), a card plate (623), an insert block (624), a rubber sleeve (625), a slider (626), a limit rod (627) and a locking spring (628). There are two push blocks (621) and they are respectively arranged in the left and right ends of the fixed shell (611). The push block (621) is arranged in one side of the fixed shell (611) and the upper and lower ends are both slidably connected to the limit rod (627). The end of the limit rod (627) away from the push block (621) is fixedly connected to the fixed shell (611). The outer side of the limit rod (627) is provided with a locking spring (628). The push block (621) is arranged in the central position of one side of the fixed shell (611). A connecting plate (622) is fixedly connected at the connection plate (622), an insert block (624) is provided on the outside of the connecting plate (622), a card plate (623) is fixedly connected to one end of the connecting plate (622) away from the push block (621), the card plate (623) is arranged in the network security body (1), a rubber sleeve (625) is provided on the outside of the insert block (624), and limiting holes (5) are provided on both sides of the position where the network security body (1) is fixedly connected to the USB connector (4), the outside of the rubber sleeve (625) is tightly fitted with the inner wall of the limiting hole (5) provided in the network security body (1), and evenly distributed sliders (626) are provided through the connecting plate (622), and the sliders (626) are fixedly connected to the insert block (624).

4. The network security device based on SM4 encryption according to claim 1, characterized in that: The insulating body (63) includes a supporting plate (631), an insulating splint (632), a connecting rod (633), a through slot (634) and a limit block (635). The top of the supporting plate (631) is fixedly connected to the fixed shell (611). A mounting slot is provided in the supporting plate (631). The inner wall of the mounting slot provided by the supporting plate (631) is fixedly connected to the limit blocks (635) that are evenly distributed on both the front and rear sides. The mounting slot provided by the supporting plate (631) is provided with an insulating splint (632). The right side of the bottom of the insulating splint (632) is fixedly connected to the connecting rod (633). The front and rear sides of one end of the insulating splint (632) are respectively provided with through slots (634) that correspond to the limit blocks (635).

5. The network security device based on SM4 encryption according to claim 1, characterized in that: A plastic block (693) is provided on the front side of the electromagnetic body (691), and a transversely arranged iron plate (696) is fixedly connected to the inner rear side of the plastic block (693), and a sliding rod (697) is provided on both the left and right ends of the iron plate (696), and the sliding rod (697) is fixedly connected to the fixed shell (611). A return spring (698) is provided on the outer side of the rear end of the sliding rod (697), and a vertically arranged insulating positioning plate (694) is fixedly connected to the inner front side of the plastic block (693), and a second conductive block (695) is fixedly connected to the upper and lower ends of the front side of the insulating positioning plate (694), and the second conductive block (695) is arranged in a one-to-one correspondence with the first conductive block (617), and a power line (616) is fixedly connected to one side of the second conductive block (695).

6. The network security device based on SM4 encryption according to claim 1, characterized in that: The ventilation body (8) includes a fixing frame (81), an installation frame (82), a dustproof net (83), a bolt (84), a fixing plate (85), an electric fan (86), a power supply body (87), a groove (88) and a conductive spring (89). The left and right sides of the network security body (1) are provided with ventilation slots (12). The network security body (1) is provided with a fixing frame (81) at the position of the ventilation slots (12). The fixing frame (81) is provided with an installation frame (82) on a side away from the network security body (1). A dustproof net (83) is provided between the installation frame (82) and the fixing frame (81). Screws are provided through the installation frame (82), the dustproof net (83) and the fixing frame (81) to be threadedly connected to the network security body (1). The fixing frame (81) on the right side is fixedly connected to a fixing plate (85) that is vertically arranged and evenly distributed. A fan (86) is installed on the side of the fixing plate (85) close to the network security body (1). A groove (88) that is evenly distributed is opened at a position corresponding to the fixing plate (85) on the side of the fixing frame (81) close to the network security body (1). A conductive spring (89) is fixedly connected to the groove (88) opened in the fixing frame (81). A fixing groove (11) is opened on the top right side of the network security body (1). The network security body (1) is fixedly connected to the power supply body (87) through the fixing groove (11). The conductive spring (89) is tightly fitted with the conductive contact provided on the power supply body (87).

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