Quick network disconnection device for computer network security

Abstract

The invention discloses a quick network disconnection device for computer network security, which belongs to the technical field of network security protection equipment and comprises a wire pulling assembly, the wire pulling assembly comprises a switch, a plurality of network interfaces are mounted on the switch, crystal heads are inserted into the network interfaces, and network cables are fixedly connected to the crystal heads. The device can be compatible with a traditional crystal head, network disconnection is physically carried out when a network cable is invaded, and meanwhile, when the network cable encounters actions such as pulling and the like, the network cable can be prevented from being damaged, and the network cable can be prevented from being damaged. According to the device, the elastic sheet above the network cable crystal head can be pressed, so that the network cable is smoothly separated from the interface under the pulling force, the network cable crystal head and the interface are effectively prevented from being damaged, in addition, the device also supports manual network disconnection, and the situation that the network cannot be disconnected under the condition that a system does not recognize or cannot recognize intrusion information is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of network security protection equipment, in particular to a fast network disconnection device for computer network security. Background Art

[0002] Network security is an important area of ​​protecting computer networks and their data from attack, damage or unauthorized access. It covers a variety of technologies and measures, including firewalls, encryption and intrusion detection systems, to ensure the confidentiality, integrity and availability of information. In some emergency situations, such as when a network attack or virus infection is discovered, unplugging the network cable can immediately isolate the device and prevent further damage to the entire network.

[0003] A Chinese patent discloses a network security protection system and its emergency network disconnection device (authorization announcement number CN113965423A). The network security protection system designed in this patent is designed with a Trojan detection module, an intrusion perception module and a vulnerability scanning module, which can protect the security of the system in all directions. At the same time, the designed emergency network disconnection device can disconnect the network in time to prevent information leakage and Trojan intrusion. The designed network disconnection device includes a power-off trigger mechanism, which can delay the issuance of a power-off signal after the network disconnection operation is completed, and timely power off the equipment controlled by the system. And the designed power-off trigger mechanism can avoid the accidental issuance of a power-off signal by workers during maintenance, and has high safety. The designed network disconnection device includes a network disconnection mechanism, which can quickly complete the network disconnection action under the drive of the ejection mechanism. And the designed combing mechanism can facilitate the one-time plugging of all network cables and also avoid the entanglement of network cables. When the network connection needs to be restored, it is convenient for maintenance personnel to reset the network disconnection device.

[0004] When unplugging a conventional network cable crystal head, the upper spring piece needs to be pressed, which makes it difficult to quickly disconnect from the network in emergency situations such as network intrusion. If the spring piece is removed, although the convenience of disconnection can be improved, it will cause unstable connection. The above patent can realize automatic network disconnection operation, but this method requires adaptation of specific crystal heads, which increases the cost of use. At the same time, depending on different intrusion situations, sometimes only one network cable may need to be disconnected. When there are many interfaces, users often find it difficult to quickly identify the attacked network cable, which not only prolongs the disconnection time, but may also cause unnecessary network interruption. In addition, the design of the traditional network cable crystal head increases the risk of damage to the crystal head and the interface when the network cable is pulled hard, which may cause the computer to be unable to connect to the network. Summary of the invention

[0005] The purpose of the present invention is to provide a fast disconnection device for computer network security to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A fast disconnection device for computer network security comprises a wire pulling component, the wire pulling component comprises a switch, a plurality of network interfaces are installed on the switch, a crystal head is plugged into the interior of the plurality of network interfaces, a network cable is fixedly connected to the crystal head, a fixing plate is arranged on the upper and lower sides of the plurality of network interfaces, and the fixing plate is fixedly connected to the switch, an air cylinder is slidably connected to the opposite side wall of the upper and lower fixing plates, a magnetic plug is slidably connected to the interior of the air cylinder, a reset spring is fixedly connected between the magnetic plug and the air cylinder, a cylinder is fixedly connected to the opposite side wall of the two air cylinders, a displacement plug is slidably connected to the interior of the cylinder, and the two displacement plugs are fixedly connected One opposite side wall is fixedly connected with a vertical pipe, a one-way connecting pipe is connected between the air storage cylinder and the cylinder, one opposite end of the two vertical pipes is fixedly connected with a resistance adjustment component, two guide plates are fixedly connected between the upper and lower fixed plates, and L-shaped guide grooves are cut on the opposite side walls of the two guide plates, two guide rods are fixedly connected to the vertical pipe, and the end of the guide rod away from the vertical pipe is slidably connected in the L-shaped guide groove, an electromagnet is provided on one side of the air storage cylinder, and the electromagnet is embedded in the switch, an anti-pull component is fixedly connected between each upper and lower fixed plates, and a manual network disconnection component is slidably connected between the upper and lower fixed plates.

[0007] As a further solution of the present invention, the resistance adjustment component includes a first magnetic plate fixedly connected to the vertical pipe, two groups of fixed shafts are fixedly connected to the lower side wall of the first magnetic plate, rollers are rotatably connected between the two groups of fixed shafts, and belts are sleeved between the two rollers.

[0008] As a further solution of the present invention, a second magnetic sheet is slidably connected between the two groups of fixed shafts, and the second magnetic sheet is magnetically attracted to the first magnetic sheet, a telescopic airbag is fixedly connected between the first magnetic sheet and the second magnetic sheet, and a one-way air pipe is connected between the one-way connecting tube and the telescopic airbag.

[0009] As a further solution of the present invention, the anti-pull assembly includes a vertical tube fixedly connected to the upper fixed plate, and a movable plug is slidably connected inside the vertical tube.

[0010] As a further solution of the present invention, a connecting spring is fixedly connected between the movable plug and the vertical cylinder, and a push rod is fixedly connected to the movable plug.

[0011] As a further solution of the present invention, a first pulley is fixedly connected to the lower end of the top rod, two second pulleys are fixedly connected to the upper side walls of multiple lower fixed plates, and the two second pulleys and the first pulley are all wound around the network cable.

[0012] As a further solution of the present invention, air pipes are connected between the vertical cylinder and the two cylinders.

[0013] As a further solution of the present invention, the manual network disconnection assembly includes two moving plates slidably connected between two guide plates, and both moving plates are fixedly connected with top columns, and the top columns are inserted into the air storage cylinder.

[0014] As a further solution of the present invention, a pull rod is provided between the upper and lower fixed plates, and two oblique rods are fixedly connected between the pull rod and the two movable plates.

[0015] As a further solution of the present invention, a same moving frame is slidably connected to multiple fixed plates, a synchronization rod is fixedly connected between the left and right side walls of the moving frame, and the synchronization rod is located between the upper and lower oblique rods, and handles are fixedly connected to the left and right side walls of the moving frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, it can identify intrusion information through the system, thereby instantly disconnecting the corresponding network cable connection. Its design is compatible with traditional crystal heads, which not only improves the disconnection speed, but also effectively reduces the cost of use. In addition, after the network maintenance is completed, the device can also automatically reinsert the network cable, greatly improving the convenience of use.

[0017] 2. When the present invention is used, the anti-pull component can press the spring piece above the network cable crystal head when the network cable encounters pulling or other actions, so that the network cable can be smoothly separated from the interface under the pulling force, effectively avoiding damage to the network cable crystal head and the interface.

[0018] 3. When the present invention is used, the manual disconnection component can be used to manually disconnect a single device or disconnect all interfaces quickly when the system does not recognize or cannot recognize intrusion information. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a fast disconnection device for computer network security; Figure 2 It is a structural schematic diagram of a wire unplugging component in a fast disconnection device for computer network security; Figure 3 It is a structural schematic diagram of a fixed plate part in a fast disconnection device for computer network security; Figure 4 It is a structural schematic diagram of the air storage cylinder part in a fast disconnection device for computer network security; Figure 5 for Figure 4 The enlarged view of point A in the middle; Figure 6 It is a structural schematic diagram of a resistance adjustment component in a fast disconnection device for computer network security; Figure 7 It is a structural schematic diagram of an anti-pull component in a rapid network disconnection device for computer network security; Figure 8It is a structural schematic diagram of a manual disconnection component in a fast disconnection device for computer network security; Fig. 9 It is a structural schematic diagram of a moving frame in a fast disconnection device for computer network security; Fig.10 This is a state diagram of a rapid disconnection device for computer network security when a crystal head is unplugged.

[0020] In the figure: 1. Wire pulling assembly; 101. Switch; 102. Network interface; 103. Crystal head; 104. Network cable; 105. Fixing plate; 106. Air cylinder; 107. Magnetic plug; 108. Reset spring; 109. Cylinder; 110. Plug transfer; 111. Vertical pipe; 112. One-way connecting pipe; 113. Guide plate; 114. L-shaped guide groove; 115. Guide rod; 116. Electromagnet; 2. Resistance adjustment component; 201. First magnetic sheet; 202. Fixed shaft; 203. Roller; 204. Belt; 205. Second magnetic sheet; 206. Telescopic airbag; 207. One-way air tube; 3. Anti-pull assembly; 301. Vertical cylinder; 302. Moving plug; 303. Connecting spring; 304. Push rod; 305. First pulley; 306. Second pulley; 307. Air pipe; 4. Manual network disconnection component; 401. Moving plate; 402. Top column; 403. Diagonal rod; 404. Pull rod; 405. Moving frame; 406. Synchronous rod; 407. Handle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 7In an embodiment of the present invention, a fast disconnection device for computer network security includes a wire pulling component 1, the wire pulling component 1 includes a switch 101, a plurality of network interfaces 102 are installed on the switch 101, a plurality of network interfaces 102 are plugged with crystal heads 103, a fixing plate 105 is fixedly connected to the switch 101 by bolts, when the crystal head 103 needs to be manually inserted into the network interface 102, the fixing plate 105 needs to be disassembled first, and then the fixing plate 105 is fixed, and then the network cable 104 is wound around the first pulley 305 and the second pulley 306, so that the network cable 104 forms an M shape, the network cable 104 is fixedly connected to the crystal head 103, and the plurality of network interfaces 102 are provided with fixing plates on both upper and lower sides. 105, and the fixing plate 105 is fixedly connected to the switch 101 by bolts, the upper and lower fixing plates 105 are slidably connected to the opposite side walls of the gas cylinder 106, the gas cylinder 106 is slidably connected with a magnetic plug 107, a return spring 108 is fixedly connected between the magnetic plug 107 and the gas cylinder 106, the two gas cylinders 106 are fixedly connected to the opposite side walls of the cylinder 109, the cylinder 109 is slidably connected with a displacement plug 110, the two displacement plugs 110 are fixedly connected to the opposite side walls of the vertical pipe 111, the gas cylinder 106 and the cylinder 109 are connected with a one-way connecting pipe 112, when the magnetic plug 107 moves, the gas inside the gas cylinder 106 can be transported to the cylinder through the one-way connecting pipe 112 and the one-way air pipe 207 respectively. 109 and vertical tube 111, the two vertical tubes 111 are fixedly connected at opposite ends with a resistance adjustment component 2 for preventing the belt 204 from moving, two guide plates 113 are fixedly connected between the left and right side walls of the upper and lower fixed plates 105, and L-shaped guide grooves 114 are cut on the opposite side walls of the two guide plates 113, and two guide rods 115 are fixedly connected to the vertical tube 111, and the end of the guide rod 115 away from the vertical tube 111 is slidably connected in the L-shaped guide groove 114, and an electromagnet 116 is provided on one side of the air storage cylinder 106, and the electromagnet 116 is embedded in the switch 101, and the electromagnet 116 can generate repulsion when energized to push the magnetic plug 107 to move, and an anti-pull Component 3, a manual disconnection component 4 is slidably connected between the upper and lower fixed plates 105. When the system identifies that it is under attack, it can be integrated with the switch 101 through some advanced network monitoring tools to obtain the connection information of each network interface 102 in the network. Through network management protocols such as SNMP, the system can accurately identify the specific port of the traffic source. The specific identification method and principle are all existing technologies and will not be repeated here. At this time, the electromagnet 116 corresponding to the port is started by the controller, and the electromagnet 116 is energized to generate magnetism, and the magnetic plug 107 is pushed to move under the action of repulsive force. At this time, since the guide rod 115 is restricted by the L-shaped guide groove 114, the air storage cylinder 106 will not move at the first time. When the magnetic plug 107 moves,The air inside the air storage cylinder 106 enters the cylinder 109 through the one-way connecting pipe 112, so that the vertical pipe 111 moves downward to drive the resistance adjustment component 2 to abut against the crystal head 103. The resistance adjustment component 2 on the upper side will abut against the spring sheet on the crystal head 103, so that the crystal head 103 is released from the restriction. At the same time, the guide rod 115 will move to the corner of the L-shaped guide groove 114. Under the continuous magnetic force of the electromagnet 116, the resistance adjustment component 2 drives the crystal head 103 to move by friction until the crystal head 103 is pulled out from the network interface 102. The state after being pulled out is as follows: Fig.10 shown.

[0023] The resistance adjustment component 2 includes a first magnetic sheet 201 fixedly connected to the vertical tube 111, and a vent hole is drilled on the first magnetic sheet 201. In order to connect the vertical tube 111 with the telescopic airbag 206, two groups of fixed shafts 202 are fixedly connected to the lower side wall of the first magnetic sheet 201, and a roller 203 is rotatably connected between the two groups of fixed shafts 202. A belt 204 is sleeved between the two rollers 203. The same second magnetic sheet 205 is slidably connected between the two groups of fixed shafts 202, and the second magnetic sheet 205 is magnetically attracted to the first magnetic sheet 201. When the telescopic airbag 206 is not filled with air, the first magnetic sheet 201 and the second magnetic sheet 205 are attached to each other under the action of magnetic force, so that the second magnetic sheet 205 will not contact the belt 204. At this time, the belt 204 can move at will. The telescopic airbag 206 is fixedly connected between the opposite side walls of the first magnetic sheet 201 and the second magnetic sheet 205, and the telescopic airbag 206 is connected to the vertical tube 111 When the magnetic plug 107 moves, the air inside the air cylinder 106 enters the vertical pipe 111 through the one-way air pipe 207, and then enters the telescopic airbag 206 through the vertical pipe 111. A one-way air pipe 207 is connected between the one-way connecting pipe 112 and the telescopic airbag 206. When the magnetic plug 107 moves, the air inside the air cylinder 106 will also enter the telescopic airbag 206 through the one-way air pipe 207, causing the telescopic airbag 206 to expand, thereby driving the second magnetic sheet 205 to abut against the belt 204, so that the belt 204 is subjected to friction and does not move. In this way, when the resistance adjustment component 2 abuts against the crystal head 103, the crystal head 103 can be pulled out by friction. The purpose of the movable belt 204 is mainly designed for the manual network disconnection component 4, so that after the network cable 104 is subjected to tension, the crystal head 103 can be disconnected from the network interface 102 more quickly to prevent damage to the crystal head 103.

[0024] The anti-pull assembly 3 includes a vertical cylinder 301 fixedly connected to the upper fixed plate 105, a movable plug 302 is slidably connected inside the vertical cylinder 301, a connecting spring 303 is fixedly connected between the movable plug 302 and the vertical cylinder 301, a top rod 304 is fixedly connected to the movable plug 302, a first pulley 305 is fixedly connected to the lower end of the top rod 304, and two second pulleys 306 are fixedly connected to the upper side walls of the multiple lower fixed plates 105, and the two second pulleys 306 and the first pulley 305 are fixedly connected to the upper side walls of the multiple lower fixed plates 105. 05 are all wound around the network cable 104, and an air pipe 307 is connected between the vertical cylinder 301 and the two cylinders 109. In the initial state, the two second pulleys 306 push the lower side of the network cable 104, and the first pulley 305 pushes the upper side of the network cable 104, so that the network cable 104 forms an M shape. When the network cable 104 is pulled by an external force, the network cable 104 will be tightened and drive the first pulley 305. At the same time, this tightening process will also have a certain degree of buffering effect on the network cable 104.

[0025] It is worth noting that when the air inside the vertical cylinder 301 is transported to the two cylinders 109 respectively through the two air pipes 307, the air inside the cylinder 109 will not enter the telescopic airbag 206 through the one-way air pipe 207. This is because one-way valves are installed inside the one-way connecting pipe 112 and the one-way air pipe 207, which can prevent the belt 204 from being restricted by the second magnetic sheet 205.

[0026] Example 2: Please refer to Figures 7 to 10 Based on Example 1, the manual network disconnection component 4 includes two moving plates 401 slidably connected between the two guide plates 113, and the side walls of the two moving plates 401 are fixedly connected with a top column 402, and the top column 402 is inserted into the air storage cylinder 106 and abuts against the magnetic plug 107. A pull rod 404 is arranged between the upper and lower fixed plates 105, and two inclined rods 403 are fixedly connected between the pull rod 404 and the two moving plates 401. The same moving frame 405 is slidably connected to the multiple fixed plates 105, and a synchronization rod 406 is fixedly connected between the left and right side walls of the moving frame 405, and the synchronization rod 406 is located between the upper and lower inclined rods 403, the left and right side walls of the movable frame 405 are fixedly connected with handles 407. When the system cannot recognize the movement, the user can also manually pull the pull rod 404, so that the pull rod 404 drives the movable plate 401 through the inclined rod 403, and the movable plate 401 pushes the magnetic plug 107 to move through the top column 402, which has an effect similar to that of energizing the electromagnet 116. Finally, under the pulling force, the crystal head 103 is pulled out. The user can also pull the handle 407 to drive the movable frame 405 to move, so that the movable frame 405 drives multiple pull rods 404 to move at the same time through the synchronization rod 406, so as to achieve the purpose of quickly disconnecting multiple ports from the network at the same time.

[0027] The working principle of the present invention is: After the network is attacked, the present invention identifies the attacked port through the system, and starts the electromagnet 116 corresponding to the attacked port through the controller. The electromagnet 116 is energized to generate magnetism, and the magnetic plug 107 is pushed to move under the action of repulsion. At this time, since the guide rod 115 is restricted by the L-shaped guide groove 114, the air storage cylinder 106 will not move at the first time. When the magnetic plug 107 moves, the air inside the air storage cylinder 106 enters the cylinder 109 through the one-way connecting pipe 112, so that the vertical pipe 111 moves downward and drives the resistance adjustment component 2 to abut against the crystal head 103. The resistance adjustment component 2 on the upper side will The spring sheet on the crystal head 103 is pressed against the crystal head 103, so that the crystal head 103 is released from the restriction. At the same time, the guide rod 115 moves to the corner of the L-shaped guide groove 114. When the magnetic plug 107 moves, the air inside the air storage cylinder 106 also enters the telescopic airbag 206 through the one-way air pipe 207, so that the telescopic airbag 206 expands, and then drives the second magnetic sheet 205 to press against the belt 204, so that the belt 204 is subjected to friction and does not move. At this time, under the magnetic thrust of the electromagnet 116, the belt 204 drives the crystal head 103 to move by friction, so that the crystal head 103 is pulled out from the network interface 102; When the network cable 104 is pulled by external force, the network cable 104 will become taut, and this state will cause the network cable 104 to drive the push rod 304 to move upward through the first pulley 305, thereby causing the movable plug 302 to move upward, and the air inside the vertical cylinder 301 is respectively transported to the two cylinders 109 through the two air pipes 307, so that the resistance adjustment component 2 and the crystal head 103 are against each other. Since there is no air inside the telescopic airbag 206 at this time, the first magnetic sheet 201 and the second magnetic sheet 205 are attracted to each other under the action of magnetic force, so that the second magnetic sheet 205 does not contact the belt 204. At this time, the belt 204 is not restricted and can move freely. When the resistance adjustment component 2 pushes the spring sheet on the upper side of the crystal head 103, the crystal head 103 can be pulled out through the network cable 104 under the pulling force of the external force, and the belt 204 will move, thereby reducing the friction between the crystal head 103 and the crystal head 103, and preventing the crystal head 103 and the network interface 102 from being damaged; The user can also manually pull the pull rod 404 so that the pull rod 404 drives the moving plate 401 through the inclined rod 403, and the moving plate 401 drives the magnetic plug 107 to move through the top column 402. When the magnetic plug 107 moves, the air inside the air storage cylinder 106 will also enter the telescopic air bag 206 through the one-way air pipe 207, causing the telescopic air bag 206 to expand, thereby driving the second magnetic sheet 205 to resist the belt 204, so that the belt 204 is subjected to friction and does not move. Under the pulling force of external force, the belt 204 relies on friction to drive the crystal head 103 to move, so that the crystal head 103 is pulled out from the network interface 102. The user can also pull the handle 407 to drive the moving frame 405 to move, so that the moving frame 405 drives multiple pull rods 404 to move at the same time through the synchronization rod 406, so as to achieve the purpose of quickly disconnecting multiple ports from the network at the same time.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fast disconnection device for computer network security, comprising a disconnection assembly (1), the disconnection assembly (1) comprising a switch (101), a plurality of network interfaces (102) being installed on the switch (101), a crystal plug (103) being inserted into each of the plurality of network interfaces (102), a network cable (104) being fixedly connected to the crystal plug (103), characterized in that: A plurality of network interfaces (102) are provided with fixing plates (105) on both upper and lower sides, and the fixing plates (105) are fixedly connected to the switch (101); opposite side walls of the upper and lower fixing plates (105) are slidably connected to gas cylinders (106); a magnetic plug (107) is slidably connected inside the gas cylinder (106); a return spring (108) is fixedly connected between the magnetic plug (107) and the gas cylinder (106); opposite side walls of the two gas cylinders (106) are fixedly connected to cylinders (109); a displacement plug (110) is slidably connected inside the cylinder (109); opposite side walls of the two displacement plugs (110) are fixedly connected to vertical pipes (111); a one-way connecting pipe (112) is connected between the gas cylinders (106) and the cylinder (109); The two vertical tubes (111) are fixedly connected to opposite ends with a resistance adjustment component (2); two guide plates (113) are fixedly connected between the upper and lower fixing plates (105); L-shaped guide grooves (114) are cut on opposite side walls of the two guide plates (113); two guide rods (115) are fixedly connected to the vertical tube (111); and the ends of the guide rods (115) away from the vertical tube (111) are slidably connected in the L-shaped guide grooves (114); an electromagnet (116) is provided on one side of the air storage cylinder (106); and the electromagnet (116) is embedded in the switch (101); an anti-pull component (3) is fixedly connected between each of the upper and lower fixing plates (105); and a manual network disconnection component (4) is slidably connected between the upper and lower fixing plates (105).

2. A fast disconnection device for computer network security according to claim 1, characterized in that: The resistance adjustment component (2) comprises a first magnetic sheet (201) fixedly connected to the vertical pipe (111); two groups of fixed shafts (202) are fixedly connected to the lower side wall of the first magnetic sheet (201); a roller (203) is rotatably connected between the two groups of fixed shafts (202); and a belt (204) is sleeved between the two rollers (203).

3. A fast disconnection device for computer network security according to claim 2, characterized in that: A second magnetic sheet (205) is slidably connected between the two groups of fixed shafts (202), and the second magnetic sheet (205) and the first magnetic sheet (201) are magnetically attracted to each other. A telescopic air bag (206) is fixedly connected between the first magnetic sheet (201) and the second magnetic sheet (205), and a one-way air pipe (207) is connected between the one-way connecting tube (112) and the telescopic air bag (206).

4. A fast disconnection device for computer network security according to claim 1, characterized in that: The anti-tension assembly (3) comprises a vertical cylinder (301) fixedly connected to the upper fixed plate (105), and a movable plug (302) is slidably connected inside the vertical cylinder (301).

5. A fast disconnection device for computer network security according to claim 4, characterized in that: A connecting spring (303) is fixedly connected between the movable plug (302) and the vertical cylinder (301), and a push rod (304) is fixedly connected to the movable plug (302).

6. A fast disconnection device for computer network security according to claim 5, characterized in that: The lower end of the top rod (304) is fixedly connected to a first pulley (305), and the upper side walls of the plurality of lower fixed plates (105) are fixedly connected to two second pulleys (306), and the two second pulleys (306) and the first pulley (305) are both wound around the network cable (104).

7. A fast disconnection device for computer network security according to claim 6, characterized in that: An air delivery pipe (307) is connected between the vertical cylinder (301) and the two cylinders (109).

8. A fast disconnection device for computer network security according to claim 1, characterized in that: The manual network disconnection assembly (4) comprises two moving plates (401) slidably connected between two guide plates (113), and a top column (402) is fixedly connected to each of the two moving plates (401), and the top column (402) is inserted into the interior of the air storage cylinder (106).

9. A fast disconnection device for computer network security according to claim 8, characterized in that: A pull rod (404) is provided between the upper and lower fixed plates (105), and two inclined rods (403) are fixedly connected between the pull rod (404) and the two movable plates (401).

10. A fast disconnection device for computer network security according to claim 9, characterized in that: The plurality of fixed plates (105) are slidably connected to a same moving frame (405), a synchronization rod (406) is fixedly connected between left and right side walls of the moving frame (405), and the synchronization rod (406) is located between upper and lower oblique rods (403), and handles (407) are fixedly connected to both left and right side walls of the moving frame (405).

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