CN109660362B - Network security isolation device - Google Patents
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- CN109660362B CN109660362B CN201910137153.3A CN201910137153A CN109660362B CN 109660362 B CN109660362 B CN 109660362B CN 201910137153 A CN201910137153 A CN 201910137153A CN 109660362 B CN109660362 B CN 109660362B
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- 238000002955 isolation Methods 0.000 title claims abstract description 22
- 239000013078 crystal Substances 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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Abstract
The invention discloses a network security isolation device, and relates to the technical field of network equipment. The utility model provides a network security isolating device, including the gateway, the gateway bottom sets up the base, set up the recess on the base, set up the motor in the recess, set up the carriage release lever mobile device on the motor, set up the carriage release lever on the carriage release lever mobile device, the carriage release lever top sets up first movable block, connecting wire one end is equipped with the quartzy head, the quartzy head is the quartzy head of no locking card, quartzy head bottom sets up the connecting rod, the second is placed and is set up the second movable block on the piece, set up first bracing piece on the second movable block, set up first magnet on the first bracing piece, set up the second bracing piece on the gateway, set up second magnet on the second bracing piece, the position of first magnet and second magnet suits. The invention has the beneficial effects that: the compactness and the stability of the crystal head in the mesh are improved, the plugging speed and the plugging force of the crystal head are reduced, and the stability of network transmission can be ensured when the crystal head is positioned in the mesh.
Description
Technical Field
The invention mainly relates to the technical field of network equipment, in particular to a network security isolation device.
Background
For any computer network, ensuring information security is the key problem to be solved firstly. Especially, some internal networks and private networks built in units, enterprises and institutions must strictly ensure that the internal network cannot be invaded, internal data cannot be leaked out, and viruses and trojans on the internet cannot be infected.
In the search of related subject matters, patents CN201620587370.4 and CN201811087443.3 both disclose technical solutions for disconnecting a network by pulling out a crystal head, thereby ensuring the security of an internal network. Specifically, the network safety monitoring system is connected with controllers such as a single chip microcomputer, the crystal head is provided with an electromagnet, the electromagnet is connected with the controller, when the network safety monitoring system monitors that an internal network is invaded, the controller controls the electromagnet to be electrified, and the crystal head is pulled out through the adsorption force of the magnet. On one hand, the net wire is large in pulling-out amplitude and high in speed, and the net wire and the crystal head are easily damaged; on the other hand, in order to facilitate the pulling out of the crystal head, the crystal head is a crystal head without a locking clamp, when the crystal head is positioned in the mesh, the tightness of the connection between the crystal head and the mesh is poor, so that the internal network is easy to be unstable, and the normal use of the network is influenced.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a network safety isolation device, which improves the tightness and stability of a crystal head in a mesh hole by improving the pulling-out mode of a network cable on the basis of the prior network safety isolation device, is flexible to use, slows down the pulling-out speed and the pulling-out force of the crystal head, reduces the damage to the crystal head, and can ensure the stability of network transmission when the crystal head is positioned in the mesh hole.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a network safety isolation device comprises a gateway, wherein a base is arranged at the bottom of the gateway, a groove is formed in the base, a motor is arranged in the groove, a moving rod moving device is arranged on the motor, a moving rod is arranged on the moving rod moving device, a first moving block is arranged at the top end of the moving rod, a first placing block is arranged on the first moving block, a first placing groove is formed in the first placing block, a second placing block is arranged on the first placing block, the first placing block and the second placing block are detachably and fixedly connected, a second placing groove is formed in the second placing block, the second placing groove is matched with the first placing groove, a connecting network cable is arranged in the first placing groove, a crystal head is arranged at one end of the connecting network cable and is a crystal head without anti-loosening clamp, and the crystal head is positioned in a main network hole of the gateway, the network safety isolation device comprises a gateway, and is characterized in that a connecting rod is arranged at the bottom of the crystal head, one end, far away from the crystal head, of the connecting rod is fixedly connected with a first moving block, a second moving block is arranged on a second placing block, a first supporting rod is arranged on the second moving block, a first magnet is arranged on the first supporting rod, a second supporting rod is arranged on the gateway, a second magnet is arranged on the second supporting rod, the positions of the first magnet and the second magnet are matched, the network safety isolation device further comprises a control system, and the control system is fixedly connected with a motor.
The movable rod moving device comprises a rotating rod, a first coupler is arranged on an output shaft of a motor, one end of the output shaft of the motor is far away from the first coupler, the first coupler is fixedly connected with the rotating rod, a gear is sleeved on the rotating rod, a rack is arranged at the bottom of the gear, the end part of the rack is connected with the movable rod, a sliding rod is arranged at the bottom of the rack, a sliding block is arranged at the bottom of the sliding rod, a linear guide rail is arranged in a groove, the linear guide rail is fixedly connected with the inner wall of a base, and the sliding block is matched.
Set up the rolling bearing in the recess, rolling bearing and base inner wall fixed connection, the dwang is kept away from first shaft coupling one end and is located the rolling bearing.
And the linear guide rail is provided with a limiting block.
The moving rod moving device comprises a ball screw transmission structure, a second coupler is arranged on an output shaft of the motor, the motor is connected with the ball screw structure through the second coupler, and the bottom end of the moving rod is connected with the ball screw structure.
The second magnet is an electromagnet and is connected with the control system.
The first placing blocks and the second placing blocks are multiple, and the second placing blocks are fixedly connected with the bottom of the second moving block.
Compared with the prior art, the invention has the beneficial effects that:
1. on the basis of the existing network security isolation device, the device uses the motor to control the movable rod moving device to plug and unplug the crystal head, and the rotating speed of the motor is slowly adjusted, so that the plugging speed and the plugging force of the crystal head are reduced, and the damage to the crystal head is reduced. And when the crystal head is located the major network hole of gateway, through the mutual absorption of first magnet and second magnet, improve the compactness and the stability of crystal head in the mesh for the crystal head can ensure network transmission's stability when being located the mesh.
2. The movable rod moving device adopts a gear rack structure to move the movable rod, so that the crystal head is plugged and pulled, the structure is simple, the occupied space is small, the maintenance is convenient, and the movable rod moving device is suitable for moving the movable rod in the device.
3. The arrangement of the bearing with the seat improves the rotating stability of the rotating rod, and further improves the transmission stability of the gear rack structure.
4. The limiting block limits the sliding stroke of the sliding block, and the plugging and unplugging of the crystal head are further optimized.
5. The moving rod moving device adopts a ball screw structure to move the moving rod, so that the crystal head is plugged and pulled, the technology is mature, the moving is accurate and stable, and the moving rod moving device is suitable for moving the moving rod in the device.
6. The second magnet adopts the electro-magnet structure, and the circular telegram when the quartzy head is located the major network is downthehole ensures quartzy head compactness and stability in the major network, cuts off the power supply when extracting the quartzy head, reduces and the first magnet between the adsorption affinity to conveniently extract the quartzy head, resistance and the harm that receives when reducing the quartzy head and extracting.
7. A plurality of first blocks and the second of placing place the setting of piece, can steadily place the connection net twine on first the piece of placing, further reduce the quartzy head to the harm of connecting the net twine when the plug removes.
Drawings
FIG. 1 is a schematic structural diagram of a front view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a front view of embodiment 2 of the present invention;
FIG. 3 is a schematic top view of a base portion of the present invention;
fig. 4 is an enlarged schematic structural view of a partial perspective view of a first moving block and a second moving block of the present invention;
fig. 5 is a block diagram of the working principle of the present invention in use.
Reference numerals shown in the drawings: 1. a gateway; 2. a base; 3. a groove; 4. a motor; 5. a travel bar; 6. a first moving block; 7. a first placing block; 8. a first placing groove; 9. a second placement block; 10. a second placing groove; 11. connecting a network cable; 12. a crystal head; 13. a connecting rod; 14. a second moving block; 15. a first support bar; 16. a first magnet; 17. a second support bar; 18. a second magnet; 19. a control system; 20. rotating the rod; 21. a first coupling; 22. a gear; 23. a rack; 24. a slide bar; 25. a slider; 26. a linear guide rail; 27. a pedestal bearing; 28. a limiting block; 29. a ball screw transmission structure; 30. a second coupling.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding, sticking and the like in the prior art, and the adopted circuit connection is the conventional type in the prior art, and the detailed description is not repeated.
The utility model provides a network security isolating device, includes gateway 1, gateway 1 bottom sets up base 2, set up recess 3 on the base 2, set up motor 4 in the recess 3, as shown in figure 1 to 3, the motor is for can carrying out the motor of just reversing for the corotation and the reversal of control carriage release lever adjust the rotational speed of motor to very slowly when using, have slowed down the plug speed and the plug dynamics of quartzy head. The mobile terminal is characterized in that a moving rod moving device is arranged on the motor 4, a moving rod 5 is arranged on the moving rod moving device, a first moving block 6 is arranged at the top end of the moving rod 5, a first placing block 7 is arranged on the first moving block 6, a first placing groove 8 is arranged on the first placing block 7, a second placing block 9 is arranged on the first placing block 7, the first placing block 7 and the second placing block 9 are detachably and fixedly connected, as shown in attached drawings 1 and 4, when the mobile terminal is used, a connecting network cable is placed in the first placing groove, then the second placing block is fixed to the top of the first placing block, and the connecting network cable is clamped through mutual matching. The second placing block 9 is provided with a second placing groove 10, the second placing groove 10 is matched with the position of the first placing groove 8, the first placing groove 8 is internally provided with a connecting network line 11, one end of the connecting network line 11 is provided with a crystal head 12, the crystal head 12 is a non-locking crystal head 12, and the crystal head is convenient to plug and pull. The network safety isolation device is characterized in that the crystal head 12 is located in a main network hole of the gateway 1, a connecting rod 13 is arranged at the bottom of the crystal head 12, one end, far away from the crystal head 12, of the connecting rod 13 is fixedly connected with the first moving block 6, the second placing block 9 is provided with a second moving block 14, the second moving block 14 is provided with a first supporting rod 15, the first supporting rod 15 is provided with a first magnet 16, the gateway 1 is provided with a second supporting rod 17, the second supporting rod 17 is provided with a second magnet 18, the positions of the first magnet 16 and the second magnet 18 are matched, the network safety isolation device further comprises a control system 19, and the control system 19 is fixedly connected with the motor 4. On the basis of the existing network security isolation device, the device uses the motor to control the movable rod moving device to plug and unplug the crystal head, and the rotating speed of the motor is slowly adjusted, so that the plugging speed and the plugging force of the crystal head are reduced, and the damage to the crystal head is reduced. And when the crystal head is located the major network hole of gateway, through the mutual absorption of first magnet and second magnet, improve the compactness and the stability of crystal head in the mesh for the crystal head can ensure network transmission's stability when being located the mesh.
As optimization, the carriage release lever mobile device includes dwang 20, set up first shaft coupling 21 on the output shaft of motor 4, motor 4 output shaft one end and dwang 20 fixed connection are kept away from to first shaft coupling 21, the gear 22 is established to the cover on the dwang 20, gear 22 bottom sets up rack 23, rack 23 tip is connected with carriage release lever 5, rack 23 bottom sets up slide bar 24, slide bar 24 bottom sets up slider 25, set up linear guide 26 in the recess 3, linear guide 26 and 2 inner wall fixed connection of base, slider 25 suits with linear guide 26. The movable rod moving device adopts a gear rack structure to move the movable rod, so that the crystal head is plugged and pulled, the structure is simple, the occupied space is small, the maintenance is convenient, and the movable rod moving device is suitable for moving the movable rod in the device.
In order to improve the stability of the transmission of the gear rack structure, a belt seat bearing 27 is arranged in the groove 3, the belt seat bearing 27 is fixedly connected with the inner wall of the base 2, and one end of the rotating rod 20, which is far away from the first coupler 21, is positioned in the belt seat bearing 27. The arrangement of the bearing with the seat improves the rotating stability of the rotating rod, and further improves the transmission stability of the gear rack structure.
For optimization, a limit block 28 is arranged on the linear guide rail 26. The limiting block limits the sliding stroke of the sliding block, and the plugging and unplugging of the crystal head are further optimized.
Preferably, the moving rod moving device comprises a ball screw transmission structure 29, a second coupling 30 is arranged on an output shaft of the motor 4, the motor 4 is connected with the ball screw structure through the second coupling 30, and the bottom end of the moving rod 5 is connected with the ball screw structure. The moving rod moving device adopts a ball screw structure to move the moving rod, so that the crystal head is plugged and pulled, the technology is mature, the moving is accurate and stable, and the moving rod moving device is suitable for moving the moving rod in the device.
Preferably, the second magnet 18 is an electromagnet, and the second magnet 18 is connected to the control system 19. The second magnet adopts the electro-magnet structure, and the circular telegram when the quartzy head is located the major network is downthehole ensures quartzy head compactness and stability in the major network, cuts off the power supply when extracting the quartzy head, reduces and the first magnet between the adsorption affinity to conveniently extract the quartzy head, resistance and the harm that receives when reducing the quartzy head and extracting.
Preferably, the first placing blocks 7 and the second placing blocks 9 are multiple, and the multiple second placing blocks 9 are fixedly connected with the bottom of the second moving block 14. A plurality of first blocks and the second of placing place the setting of piece, can steadily place the connection net twine on first the piece of placing, further reduce the quartzy head to the harm of connecting the net twine when the plug removes.
The using method comprises the following steps:
when the device is used, as shown in the attached drawing 5, a control system is connected with the existing network security monitoring system, when the network security monitoring system monitors that the internal network of a unit is attacked, a signal is sent to the control system, the control system controls a motor to rotate, the motor drives a movable rod moving device to move, then the movable rod, a first movable block and a connecting rod are driven to move, a crystal head is pulled out from a main network hole of a gateway, isolation is carried out, and potential safety hazards are reduced. When the crystal head is located the major network downthehole, under the mutual adsorption of first magnet and second magnet, even the crystal head does not have locking card, also can be at major network hole zonulae occludens, remain stable, ensure network service environment's stability.
Example 1:
the utility model provides a network security isolating device, includes gateway 1, gateway 1 bottom sets up base 2, set up recess 3 on the base 2, set up motor 4 in the recess 3, in this embodiment, the motor adopts Y112M-24KW three-phase asynchronous motor, and positive and negative dress control technology is mature, and the precision is high. A moving rod moving device is arranged on the motor 4, a moving rod 5 is arranged on the moving rod moving device, a first moving block 6 is arranged at the top end of the moving rod 5, a first placing block 7 is arranged on the first moving block 6, a first placing groove 8 is arranged on the first placing block 7, a second placing block 9 is arranged on the first placing block 7, the first placing block 7 and the second placing block 9 are detachably and fixedly connected, a second placing groove 10 is arranged on the second placing block 9, the second placing groove 10 is matched with the first placing groove 8 in position, a connecting network wire 11 is arranged in the first placing groove 8, a crystal head 12 is arranged at one end of the connecting network wire 11, the crystal head 12 is a crystal head 12 without anti-loosening clamp, the crystal head 12 is positioned in a main network hole of the gateway 1, a connecting rod 13 is arranged at the bottom of the crystal head 12, one end of the connecting rod 13 far away from the crystal head 12 is fixedly connected with the first moving block 6, the second placing block 9 is provided with a second moving block 14, the second moving block 14 is provided with a first supporting rod 15, the first supporting rod 15 is provided with a first magnet 16, the gateway 1 is provided with a second supporting rod 17, the second supporting rod 17 is provided with a second magnet 18, the positions of the first magnet 16 and the second magnet 18 are matched, and the network safety isolating device further comprises a control system 19, wherein in the embodiment, the control system adopts a PLC control system, specifically, S7-200 PLC. The motor is controlled by adopting the PLC, the technology is mature, the operation is simple and convenient, and the control stability is improved. The control system 19 is fixedly connected with the motor 4. On the basis of the existing network security isolation device, the device uses the motor to control the movable rod moving device to plug and unplug the crystal head, and the rotating speed of the motor is slowly adjusted, so that the plugging speed and the plugging force of the crystal head are reduced, and the damage to the crystal head is reduced. And when the crystal head is located the major network hole of gateway, through the mutual absorption of first magnet and second magnet, improve the compactness and the stability of crystal head in the mesh for the crystal head can ensure network transmission's stability when being located the mesh. The carriage release lever mobile device includes dwang 20, set up first shaft coupling 21 on the output shaft of motor 4, motor 4 output shaft one end and dwang 20 fixed connection are kept away from to first shaft coupling 21, dwang 20 goes up the cover and establishes gear 22, gear 22 bottom sets up rack 23, rack 23 tip is connected with carriage release lever 5, rack 23 bottom sets up slide bar 24, slide bar 24 bottom sets up slider 25, set up linear guide 26 in the recess 3, in this embodiment, slider and linear guide all adopt THK series SHS35C specification. The linear guide rail 26 is fixedly connected with the inner wall of the base 2, and the sliding block 25 is adapted to the linear guide rail 26. The movable rod moving device adopts a gear rack structure to move the movable rod, so that the crystal head is plugged and pulled, the structure is simple, the occupied space is small, the maintenance is convenient, and the movable rod moving device is suitable for moving the movable rod in the device. Set up rolling bearing 27 in the recess 3, rolling bearing 27 and base 2 inner wall fixed connection, dwang 20 is kept away from first shaft coupling 21 one end and is located rolling bearing 27. The arrangement of the bearing with the seat improves the rotating stability of the rotating rod, and further improves the transmission stability of the gear rack structure. The linear guide rail 26 is provided with a limiting block 28. The limiting block limits the sliding stroke of the sliding block, and the plugging and unplugging of the crystal head are further optimized. The second magnet 18 is an electromagnet, and the second magnet 18 is connected with a control system 19. The second magnet adopts the electro-magnet structure, and the circular telegram when the quartzy head is located the major network is downthehole ensures quartzy head compactness and stability in the major network, cuts off the power supply when extracting the quartzy head, reduces and the first magnet between the adsorption affinity to conveniently extract the quartzy head, resistance and the harm that receives when reducing the quartzy head and extracting. The first placing blocks 7 and the second placing blocks 9 are multiple, and the second placing blocks 9 are fixedly connected with the bottom of the second moving block 14. A plurality of first blocks and the second of placing place the setting of piece, can steadily place the connection net twine on first the piece of placing, further reduce the quartzy head to the harm of connecting the net twine when the plug removes.
Example 2:
in this embodiment, on the basis of the above embodiment, the moving rod moving device includes a ball screw transmission structure 29, a second coupling 30 is disposed on an output shaft of the motor 4, and the motor 4 is connected to the ball screw structure through the second coupling 30, in this embodiment, the ball screw structure adopts an SFU2505-3 precision ball screw. The bottom end of the moving rod 5 is connected with the ball screw structure. The moving rod moving device adopts a ball screw structure to move the moving rod, so that the crystal head is plugged and pulled, the technology is mature, the moving is accurate and stable, and the moving rod moving device is suitable for moving the moving rod in the device.
Claims (7)
1. The utility model provides a network security isolating device, includes gateway (1), gateway (1) bottom sets up base (2), its characterized in that: the base (2) is provided with a groove (3), a motor (4) is arranged in the groove (3), a moving rod moving device is arranged on the motor (4), a moving rod (5) is arranged on the moving rod moving device, a first moving block (6) is arranged at the top end of the moving rod (5), a first placing block (7) is arranged on the first moving block (6), a first placing groove (8) is arranged on the first placing block (7), a second placing block (9) is arranged on the first placing block (7), the first placing block (7) and the second placing block (9) are detachably and fixedly connected, a second placing groove (10) is arranged on the second placing block (9), the second placing groove (10) is matched with the position of the first placing groove (8), a connecting network cable (11) is arranged in the first placing groove (8), one end of the connecting network cable (11) is provided with a crystal head (12), the crystal head (12) is a crystal head without a locking clamp, the crystal head (12) is positioned in a main network hole of the gateway (1), a connecting rod (13) is arranged at the bottom of the crystal head (12), one end of the connecting rod (13) far away from the crystal head (12) is fixedly connected with a first moving block (6), a second moving block (14) is arranged on the second placing block (9), a first supporting rod (15) is arranged on the second moving block (14), a first magnet (16) is arranged on the first supporting rod (15), a second supporting rod (17) is arranged on the gateway (1), a second magnet (18) is arranged on the second supporting rod (17), the positions of the first magnet (16) and the second magnet (18) are matched, the network safety isolation device further comprises a control system (19), and the control system (19) is fixedly connected with the motor (4).
2. The network security isolation device of claim 1, wherein: the movable rod moving device comprises a rotating rod (20), a first coupler (21) is arranged on an output shaft of a motor (4), one end of the output shaft of the motor (4) is far away from the first coupler (21) and is fixedly connected with the rotating rod (20), a gear (22) is sleeved on the rotating rod (20), a rack (23) is arranged at the bottom of the gear (22), the end part of the rack (23) is connected with the movable rod (5), a sliding rod (24) is arranged at the bottom of the rack (23), a sliding block (25) is arranged at the bottom end of the sliding rod (24), a linear guide rail (26) is arranged in a groove (3), the linear guide rail (26) is fixedly connected with the inner wall of a base (2), and the sliding block (25) is matched with the linear guide rail (26).
3. A network security isolation device according to claim 2, wherein: set up rolling bearing (27) in recess (3), rolling bearing (27) and base (2) inner wall fixed connection, dwang (20) are kept away from first shaft coupling (21) one end and are located rolling bearing (27).
4. A network security isolation device according to claim 2, wherein: and a limiting block (28) is arranged on the linear guide rail (26).
5. The network security isolation device of claim 1, wherein: the moving rod moving device comprises a ball screw transmission structure (29), a second coupler (30) is arranged on an output shaft of the motor (4), the motor (4) is connected with the ball screw structure through the second coupler (30), and the bottom end of the moving rod (5) is connected with the ball screw structure.
6. A network security isolation device according to any one of claims 1 to 5, wherein: the second magnet (18) is an electromagnet, and the second magnet (18) is connected with a control system (19).
7. A network security isolation device according to any one of claims 1 to 5, wherein: the first placing blocks (7) and the second placing blocks (9) are multiple, and the second placing blocks (9) are fixedly connected with the bottom of the second moving block (14).
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| TW507971U (en) * | 2001-09-13 | 2002-10-21 | Perfect Three Mfg Corp | Information connector with distribution terminal panel |
| EP1522915B1 (en) * | 2003-08-21 | 2006-08-09 | Parat-Werk Schönenbach GmbH & Co. KG | Device for coupling computers to a carrier unit |
| CN201689360U (en) * | 2009-12-17 | 2010-12-29 | 黄富华 | Internet indulgence prevention control device |
| CN105847296A (en) * | 2016-05-19 | 2016-08-10 | 拖洪华 | Network security isolation device |
| CN205725796U (en) * | 2016-06-15 | 2016-11-23 | 东华理工大学 | A network security automatic disconnection device |
| CN206422263U (en) * | 2016-12-27 | 2017-08-18 | 深圳市精泰达科技有限公司 | A kind of RJ45 network crystal heads switching device |
| CN108429695A (en) * | 2018-03-26 | 2018-08-21 | 深圳市奈士迪技术研发有限公司 | A kind of router convenient for storage for reinforcing function with Network Cable Connector |
| CN109067671A (en) * | 2018-07-27 | 2018-12-21 | 合肥金新允电子技术有限公司 | A kind of infant industry Ethernet switch |
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| CN109660362A (en) | 2019-04-19 |
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