A network security isolation device

Abstract

The application relates to the technical field of network security, and discloses a network security isolation device, which comprises an isolation device body and an outer protective box, the isolation device body is sleeved in the inner part of the outer protective box, a supporting frame is installed at the bottom of the outer protective box, a transmission shaft is sleeved in the inner part of the supporting frame, and a bearing seat fixedly installed on the inner wall of the middle part of the supporting frame is sleeved on the middle part of the transmission shaft. The network security isolation device provides a stable and impact-resistant supporting space for the isolation device body through the outer protective box and the damping support rod, the automatic air conveying structure composed of the supporting frame, the transmission shaft, the transition air tank, the fan blade and the meshing output assembly is combined with the multifunctional filtering and guiding structure composed of the transition sleeve, the flow guide pipe, the adjusting disc, the filter screen, the adjusting shaft and the ash discharge valve pipe, so that the air outside can be actively pressurized and filtered and conveyed into the space where the isolation device body is located, and the isolation device body can be cooled and protected.

Description

Technical Field

[0001] This invention relates to the field of network security technology, specifically to a network security isolation device. Background Technology

[0002] Network security isolation devices are typically used to create physical isolation in computer systems to prevent data from flowing from one network to another. These environments include military, government agencies, financial institutions, and other situations requiring strict data protection. However, as is common with electronic devices, network security isolation devices also generate a lot of heat under high-performance computing and long-term operation. If not handled in time, this can lead to an increased failure rate and a shortened lifespan for the network security isolation devices.

[0003] In recent years, with the rapid development of related technologies, some heat dissipation devices for network security isolation equipment have begun to be used. However, after actual use, the applicant found that most of the heat dissipation devices currently in use are air-cooled heat dissipation materials. In order to prevent dust in the environment from coming into contact with the network security isolation equipment along with the cooling airflow, the existing technology mostly installs a filter screen in the air inlet. However, this protection method is effective in the initial use, but as the usage time goes on, blockage problems occur, reducing the air supply cooling effect and requiring frequent manual cleaning. The performance still needs further improvement. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a network security isolation device that solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a network security isolation device, comprising an isolation device body and an outer protective box, wherein the isolation device body is fitted inside the outer protective box, a support frame is installed at the bottom of the outer protective box, a drive shaft is fitted inside the support frame, a bearing seat is fixedly installed on the inner wall of the middle part of the drive shaft via a bearing, a transition air box is fixedly installed on the inner wall of the front end of the support frame via a sealing ring at one end of the drive shaft, and a plurality of fan blades are fixedly connected to the surface of one end of the drive shaft and movably fitted inside the transition air box, an air inlet is provided at the rear end of the transition air box, and a meshing output component is drivenly connected to the other end of the drive shaft;

[0008] The front end of the transition air box is connected to a transition sleeve that communicates with its own space. A guide pipe is installed between the front end of the transition sleeve and the bottom of the outer protective box. An adjusting circular plate and a filter screen plate are respectively installed inside the front and rear ends of the transition sleeve. A ash discharge valve pipe is provided between the filter screen plate and the adjusting circular plate and is fixedly connected to the transition sleeve. An adjusting shaft is installed on the top of the adjusting circular plate and the top of the filter screen plate through a sealing ring. The top of the adjusting shaft extends to the outside of the top of the transition sleeve and is magnetically snapped to a magnetic ring installed on the top of the transition sleeve.

[0009] Preferably, the meshing output assembly includes a servo motor, a first gear, and a second gear. The first gear and the second gear are meshed together, and the inner side of the middle part of the second gear is fixedly sleeved on the surface of one end of the transmission shaft. The output end of the servo motor is connected to the middle part of the first gear, and a fixed seat is installed between the surface of the servo motor housing and the bottom inner wall of the support frame, thereby meeting the power requirements for air delivery.

[0010] Preferably, the number of fan blades is four to ensure air delivery efficiency, and the output direction of the four fan blades after rotation is from the transition box to the transition sleeve.

[0011] Preferably, a coolant box, an elastic pressurizing component, and an electric push rod are installed on the inner wall of one side of the bottom of the support frame. The drive shaft and the four fan blades are all hollow structures, and the internal space of the four fan blades is connected to the internal space of the drive shaft. Liquid drainage pipes are fitted at both ends of the drive shaft. One end of one liquid drainage pipe is fitted inside the rear end of the coolant box, and one end of the other liquid drainage pipe is connected to one end of the elastic pressurizing component. The other end of the elastic pressurizing component is connected to the front end of the coolant box.

[0012] Preferably, an auxiliary bearing and a leak-proof sealing ring are nested between the inner side of the liquid drainage pipe end and the corresponding end of the drive shaft, and the two ends of the liquid drainage pipe are positioned higher than the end of the drive shaft assembly, while the ends away from the drive shaft are positioned lower, thereby allowing the coolant remaining inside the drive shaft to flow back and preventing it from being isothermalized.

[0013] Preferably, the elastic pressurizing component includes an elastic balloon, with one-way valve tubes fixedly connected to both the front and rear ends of the elastic balloon. One end of one of the one-way valve tubes is connected and communicates with one end of a corresponding liquid drainage tube, and one end of the other one-way valve tube is fixedly sleeved inside the front end of the coolant box. The middle part of the elastic balloon is aligned with the output end of the electric push rod, and a support plate is fixedly installed between the housing surface of the electric push rod and the inner wall of the bottom of the support frame. By utilizing the one-way drainage of the elastic pressurizing component and the output power of the electric push rod, the coolant in the coolant box can circulate through the elastic pressurizing component, the two liquid drainage tubes, and the drive shaft, thereby providing auxiliary cooling treatment for the air to be output and improving the air cooling effect on the isolation equipment body.

[0014] Preferably, the outer side of the elastic balloon is movably sleeved with a baffle fixedly installed on the inner wall of the bottom of the support frame, and the inside of the elastic balloon is fitted with an auxiliary spring plate to assist in its own deformation and reset, thereby providing reset assistance for the reciprocating deformation operation of the elastic balloon and maintaining the continuous use effect of the elastic balloon. The output direction of the two one-way valve tubes is from the elastic balloon to the liquid drainage tube fitted at the front end of the drive shaft.

[0015] Preferably, the outer protective box consists of a frame box and a sealing frame plate. Protective filters are nested inside both the frame box and the sealing frame plate. A first threaded hole is provided on the top inner wall of the frame box. The sealing frame plate is installed with screws to the first threaded hole. Damping rods are fixedly connected to the top and bottom surfaces of the isolation device body. The top of the damping rod on the top of the isolation device body is fitted and connected to the top surface of the sealing frame plate. The damping rods further fill the space between the isolation device body and the frame box, improving the installation stability of the isolation device body while providing shock absorption conditions for the isolation device body.

[0016] Preferably, a temperature sensor is fixedly installed on the inner wall of one side of the frame housing. The temperature sensor is electrically connected to a controller via a wire. The controller is electrically connected to a servo motor and an electric push rod via a wire. The temperature sensor is used to monitor the temperature of the space where the isolation equipment body is located in real time, thereby providing data support for the subsequent operation of the heat dissipation structure and reducing unnecessary work.

[0017] Preferably, both sides of the bottom of the frame housing and both sides of the top of the support frame are set with L-shaped flange structures, and each of the L-shaped flange structures on both sides of the top of the support frame is provided with a second threaded hole. The L-shaped flange structure at the bottom of the frame housing is installed with screws to the corresponding threaded holes. A third threaded hole is provided at the bottom of the frame housing, and one end of the guide pipe is installed with screws to the third threaded hole, thereby providing structural conditions for subsequent modular replacement and maintenance.

[0018] Beneficial effects

[0019] This invention provides a network security isolation device with the following advantages:

[0020] 1. This network security isolation device provides a stable and impact-resistant support space for the isolation device body through the set outer protective box and damping support rod. The automatic air supply structure composed of the set support frame, drive shaft, transition air box, fan blades, and meshing output components, combined with the multi-functional filter and flow guiding structure composed of transition sleeve, guide pipe, adjusting circular plate, filter screen plate, adjusting shaft and ash discharge valve pipe, can actively pressurize and filter the outside air and deliver it to the space where the isolation device body is located, to provide auxiliary cooling protection for the isolation device body and prevent the isolation device body from overheating.

[0021] 2. The network security isolation device features a multi-functional filter guide structure. During use, by adjusting the position of its own adjusting disc and filter screen, it can utilize the airflow output by the automatic air supply structure to reverse-impact the filter surface of the filter screen without interfering with the filter screen's filtration function. Then, by using the obstruction of the adjusting disc and the flow guide channel of the ash discharge valve pipe, the impurities blown out by the air are discharged into the transition sleeve, achieving a self-cleaning effect on the filter screen and ensuring the continuous use of the multi-functional filter guide structure.

[0022] 3. This network security isolation device, through the combination of two liquid drainage pipes, a coolant box, an elastic pressurizing component, and an electric push rod with hollow fan blades and a drive shaft, can simultaneously push the elastic ball at the output end of the electric push rod while the fan blades and drive shaft rotate and output. This causes the elastic ball and auxiliary spring plate to reciprocate and deform. Then, by utilizing the one-way drainage effect of the two one-way valve pipes and the two liquid drainage pipes, the coolant inside the coolant box circulates within the hollow drive shaft and fan blades, assisting in cooling the air inside the transition air box and further enhancing the auxiliary cooling and heat dissipation effect on the isolation device itself. Attached Figure Description

[0023] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a front view schematic diagram of the main body of the structural isolation device of the present invention;

[0025] Figure 3 This is a top view schematic diagram of the servo motor structure of the present invention;

[0026] Figure 4 This is a partial cross-sectional schematic diagram of the transition air box of the present invention;

[0027] Figure 5 This is a partial cross-sectional schematic diagram of the transition sleeve of the present invention;

[0028] Figure 6 This is a partial cross-sectional schematic diagram of the transmission shaft of the present invention;

[0029] Figure 7 The structure of this invention Figure 6 Enlarged diagram of point A in the middle.

[0030] In the diagram: 1. Isolation equipment body; 2. Outer protective box; 211. Frame box; 212. Sealing frame plate; 3. Support frame; 4. Drive shaft; 5. Transition air box; 6. Fan blade; 7. Air inlet; 8. Transition sleeve; 9. Guide pipe; 10. Adjusting disc; 11. Filter screen; 12. Adjusting shaft; 13. Ash discharge valve pipe; 14. Temperature sensor; 15. Coolant box; 16. Elastic pressurization component; 161. Elastic balloon; 162. One-way valve pipe; 163. Auxiliary spring plate; 17. Liquid drainage pipe; 18. Electric push rod; 19. Servo motor; 20. First gear; 21. Second gear; 22. Damping support rod. Detailed Implementation

[0031] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-7 A network security isolation device includes an isolation device body 1 and an outer protective box 2. The isolation device body 1 is installed inside the outer protective box 2. A support frame 3 is installed at the bottom of the outer protective box 2. A drive shaft 4 is installed inside the support frame 3. A bearing seat is fixedly installed on the inner wall of the middle of the support frame 3 through a bearing in the middle part of the drive shaft 4. A transition air box 5 is fixedly installed on the inner wall of the front end of the support frame 3 through a sealing ring at one end of the drive shaft 4. Several fan blades 6 are fixedly connected to the surface of one end of the drive shaft 4 and are movably sleeved inside the transition air box 5. An air inlet 7 is opened at the rear end of the transition air box 5. A meshing output component is drivenly connected to the other end of the drive shaft 4.

[0033] The front end of the transition air box 5 is connected to a transition sleeve 8 that communicates with its own space. A guide pipe 9 is installed between the front end of the transition sleeve 8 and the bottom of the outer protective box 2. An adjusting circular plate 10 and a filter screen plate 11 are respectively installed inside the front and rear ends of the transition sleeve 8. A ash discharge valve pipe 13 is provided between the filter screen plate 11 and the adjusting circular plate 10 and is fixedly connected to the transition sleeve 8. An adjusting shaft 12 is installed on the top of the adjusting circular plate 10 and the top of the filter screen plate 11 through a sealing ring. The top of the adjusting shaft 12 extends to the outside of the top of the transition sleeve 8 and is magnetically snapped with a magnetic ring installed on the top of the transition sleeve 8. The number of fan blades 6 is four to ensure air delivery efficiency. The output direction of the four fan blades 6 after rotation is from the transition air box 5 to the transition sleeve 8.

[0034] The meshing output assembly includes a servo motor 19, a first gear 20, and a second gear 21. The first gear 20 and the second gear 21 are meshed and connected. The inner side of the middle part of the second gear 21 is fixedly sleeved on the surface of one end of the transmission shaft 4. The output end of the servo motor 19 is connected to the middle part of the first gear 20. A fixed seat is installed between the housing surface of the servo motor 19 and the bottom inner wall of the support frame 3, thereby meeting the power requirements for air delivery.

[0035] A coolant box 15, an elastic pressurizing component 16, and an electric push rod 18 are installed on the inner wall of one side of the bottom of the support frame 3. The drive shaft 4 and the four fan blades 6 are all hollow structures, and the internal space of the four fan blades 6 is connected to the internal space of the drive shaft 4. Liquid drainage pipes 17 are fitted at both ends of the drive shaft 4. One end of one liquid drainage pipe 17 is fitted inside the rear end of the coolant box 15, and one end of the other liquid drainage pipe 17 is connected to one end of the elastic pressurizing component 16. The other end of the elastic pressurizing component 16 is connected to the front end of the coolant box 15. An auxiliary bearing and a leak-proof sealing ring are nested between the inner side of the liquid drainage pipe 17 end and the corresponding end of the drive shaft 4. The two ends of the liquid drainage pipe 17 are positioned higher than the end fitted to the drive shaft 4 and lower than the end away from the drive shaft 4, thereby allowing the coolant remaining inside the drive shaft 4 to flow back and avoid being isothermalized.

[0036] The elastic pressurization assembly 16 includes an elastic balloon 161. One-way valve tubes 162 are fixedly connected to both the front and rear ends of the elastic balloon 161. One end of one of the one-way valve tubes 162 is connected to and communicates with one end of a corresponding liquid drainage tube 17, while one end of the other one-way valve tube 162 is fixedly sleeved inside the front end of the coolant box 15. The middle part of the elastic balloon 161 is aligned with the output end of the electric push rod 18. A support plate is fixedly installed between the housing surface of the electric push rod 18 and the inner wall of the bottom of the support frame 3. Utilizing the one-way drainage of the elastic pressurization assembly 16 and the output power of the electric push rod 18, the coolant in the coolant box 15 can be pressurized elastically. The components 16, two liquid drainage pipes 17 and the drive shaft 4 circulate and then assist in cooling the air that is about to be output, thereby improving the air cooling effect on the isolation equipment body 1. The outer side of the elastic balloon 161 is movably fitted with a baffle fixedly installed on the bottom inner wall of the support frame 3. The inside of the elastic balloon 161 is fitted with an auxiliary spring plate 163 to assist in its own deformation and reset, thereby providing reset assistance for the reciprocating deformation operation of the elastic balloon 161 and maintaining the continuous use effect of the elastic balloon 161. The output direction of the two one-way valve pipes 162 is from the elastic balloon 161 to the liquid drainage pipe 17 fitted at the front end of the drive shaft 4.

[0037] The outer protective box 2 consists of a frame box 211 and a sealing frame plate 212. Protective filters are nested inside both the frame box 211 and the sealing frame plate 212. A first threaded hole is provided on the top inner wall of the frame box 211. The sealing frame plate 212 is installed to the first threaded hole using screws. Damping rods 22 are fixedly connected to the top and bottom surfaces of the isolation device body 1. The top of the damping rod 22 on the top of the isolation device body 1 is fitted to the top surface of the sealing frame plate 212. The damping rod 22 further fills the space between the isolation device body 1 and the frame box 211, improving the installation stability of the isolation device body 1 while providing shock absorption. A temperature sensor 14 is fixedly installed on the inner wall of one side of the frame box 211. Temperature sensor 14 is electrically connected to controller via wires. Controller is electrically connected to servo motor 19 and electric push rod 18 via wires. Temperature sensor 14 monitors the temperature of the space where the isolation equipment body 1 is located in real time, thereby providing data support for subsequent heat dissipation structure operations and reducing unnecessary work. The bottom sides of frame housing 211 and the top sides of support frame 3 are both set with L-shaped flange structures. Second threaded holes are opened in the L-shaped flange structures on both sides of the top of support frame 3. The L-shaped flange structure at the bottom of frame housing 211 is installed with screws to the corresponding threaded holes. A third threaded hole is opened at the bottom of frame housing 211. One end of the guide pipe 9 is installed with screws to the third threaded hole, thus providing structural conditions for subsequent modular replacement and maintenance.

[0038] Working principle:

[0039] Example 1

[0040] During the use of the isolation device body 1, when the isolation device body 1 is subjected to vibration, the damping support rods 22 set at the bottom and top of the isolation device body 1 can work with the outer protective box 2 and the support frame 3 to provide damping and buffering. When the temperature sensor 14 detects that the temperature of the space where the isolation device body 1 is located rises, the servo motor 19 is started. The output end of the servo motor 19 drives the first gear 20 to rotate synchronously. Then, the first gear 20 meshes with the second gear 21, so that the second gear 21 drives the transmission shaft 4 and the four fan blades 6 to rotate synchronously. The four fan blades 6 accelerate the air inside the transition air box 5 and make the air inside the transition air box 5 flow quickly to the transition sleeve 8. The horizontal filter plate 11 inside the transition sleeve 8 will filter the flowing air. The filtered air then enters the interior of the frame box 211 through the guide pipe 9 to cool the isolation device body 1.

[0041] After the filter plate 11 has been used for a certain period of time, the servo motor 19 can be temporarily turned off to stop the air supply. Then, the adjusting shaft 12 at the top of the adjusting disc 10 is turned to overcome the magnetic attraction of the magnet ring, so that the adjusting disc 10 changes from a vertical state to a horizontal state, temporarily closing the internal flow channel space of the transition sleeve 8, and then opening the valve inside the ash discharge valve pipe 13.

[0042] Twist the adjusting shaft 12 at the top of the filter screen plate 11 to overcome the magnetic attraction of the magnetic ring and rotate the filter screen plate 11 180 degrees, so that the filter surface of the filter screen plate 11 faces the adjusting circular plate 10. Start the servo motor 19, and drive the first gear 20 to rotate synchronously by the output end of the servo motor 19. Then, the first gear 20 meshes with the second gear 21 to drive the transmission shaft 4 and the four fan blades 6 to rotate synchronously. The four fan blades 6 accelerate the air inside the transition air box 5, and then use the fast-flowing air to impact the filter screen plate 11 to achieve a reverse rinsing effect. Then, the impurities on the filter surface of the filter screen plate 11 are discharged through the ash discharge valve pipe 13.

[0043] After the filter screen 11 has finished self-cleaning, close the valves of the servo motor 19 and the ash discharge valve pipe 13, reset the adjusting disc 10 and the filter screen 11, and continue to use it.

[0044] Example 2

[0045] When the cooling rate of the isolation device body 1 does not reach the ideal level when operating according to the above embodiment 1, the electric push rod 18 can be opened and closed repeatedly during the synchronous rotation output of the drive shaft 4 and the fan blade 6. The output end of the electric push rod 18 presses the elastic ball 161 inside the elastic pressure component 16 repeatedly, causing the elastic ball 161 and the auxiliary spring plate 163 to deform repeatedly. Then, the cooling liquid inside the coolant box 15 is sent to the liquid drainage pipe 17 fitted with the front end of the drive shaft 4 by the one-way drainage effect of the two one-way valve pipes 162. Then, it enters the hollow structure of the drive shaft 4 and the fan blade 6, and then uses the principle of heat conduction to assist in cooling the air inside the transition air box 5 without interfering with the rotation output of the drive shaft 4 and the fan blade 6.

[0046] After use, the coolant will flow back to the coolant box 15 through the drive shaft 4 and another liquid drain pipe 17. Then, the above steps are repeated to ensure the cooling and heat dissipation of the isolation equipment body 1 by using the combined effect of air cooling and liquid cooling.

[0047] Example 3

[0048] When the isolation device body 1 needs maintenance, simply remove the screws between the frame housing 211 and the sealing frame plate 212, and take out the isolation device body 1. When the internal related structure of the support frame 3 malfunctions and needs maintenance, simply remove the screws between the guide pipe 9 and the frame housing 211, and the screws between the frame housing 211 and the support frame 3, and the outer protective box 2 and the support frame 3 can be separated, providing convenient conditions for modular maintenance of the related structure inside the support frame 3.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A network security isolation device, comprising an isolation device body (1) and an outer protective box (2), characterized in that: The isolation device body (1) is fitted inside the outer protective box (2). A support frame (3) is installed at the bottom of the outer protective box (2). A drive shaft (4) is fitted inside the support frame (3). A bearing seat is fixedly installed on the inner wall of the middle part of the drive shaft (4) through a bearing. A transition air box (5) is fixedly installed on the inner wall of the front end of the support frame (3) through a sealing ring at one end of the drive shaft (4). Several fan blades (6) are fixedly connected to the surface of one end of the drive shaft (4) and are movably fitted inside the transition air box (5). An air inlet (7) is opened at the rear end of the transition air box (5). A meshing output component is connected to the other end of the drive shaft (4). The front end of the transition air box (5) is connected to a transition sleeve (8) that communicates with its own space. A guide pipe (9) is installed between the front end of the transition sleeve (8) and the bottom of the outer protective box (2). An adjusting circular plate (10) and a filter screen plate (11) are respectively installed inside the front and rear ends of the transition sleeve (8). A ash discharge valve pipe (13) is provided between the filter screen plate (11) and the adjusting circular plate (10) and is fixedly connected to the transition sleeve (8). An adjusting shaft (12) is installed on the top of the adjusting circular plate (10) and the top of the filter screen plate (11) through a sealing ring. The top of the adjusting shaft (12) extends to the outside of the top of the transition sleeve (8) and is magnetically snapped with a magnetic ring installed on the top of the transition sleeve (8). The inner wall of the bottom side of the support frame (3) is equipped with a coolant box (15), an elastic pressurizing component (16), and an electric push rod (18). The drive shaft (4) and the four fan blades (6) are all hollow structures, and the internal space of the four fan blades (6) is connected to the internal space of the drive shaft (4). Both ends of the drive shaft (4) are fitted with liquid drainage pipes (17). One end of one liquid drainage pipe (17) is fitted inside the rear end of the coolant box (15), and one end of the other liquid drainage pipe (17) is connected to one end of the elastic pressurizing component (16). The other end of the elastic pressurizing component (16) is connected to the front end of the coolant box (15). The elastic pressurization assembly (16) includes an elastic balloon (161), with one-way valve tubes (162) fixedly connected to both the front and rear ends of the elastic balloon (161). One end of one of the one-way valve tubes (162) is connected and communicates with one end of the corresponding liquid drainage tube (17), and one end of the other one-way valve tube (162) is fixedly sleeved inside the front end of the coolant box (15). The middle part of the elastic balloon (161) is aligned with the output end of the electric push rod (18), and a support plate is fixedly installed between the shell surface of the electric push rod (18) and the inner wall of the bottom of the support frame (3).

2. The network security isolation device according to claim 1, characterized in that: The meshing output assembly includes a servo motor (19), a first gear (20), and a second gear (21). The first gear (20) meshes with the second gear (21), and the inner side of the middle part of the second gear (21) is fixedly sleeved on the surface of one end of the transmission shaft (4). The output end of the servo motor (19) is connected to the middle part of the first gear (20), and a fixed seat is installed between the housing surface of the servo motor (19) and the bottom inner wall of the support frame (3).

3. A network security isolation device according to claim 1, characterized in that: The number of fan blades (6) is four, and the output direction of the four fan blades (6) after rotation is from the transition box (5) to the transition sleeve (8).

4. A network security isolation device according to claim 1, characterized in that: An auxiliary bearing and a leak-proof sealing ring are nested between the inner side of the liquid drainage tube (17) and the corresponding end of the drive shaft (4), and the two ends of the liquid drainage tube (17) are positioned at a high position with the end of the drive shaft (4) and at a low position with the end away from the drive shaft (4).

5. A network security isolation device according to claim 1, characterized in that: The outer side of the elastic balloon (161) is movably sleeved with a baffle fixedly installed on the bottom inner wall of the support frame (3). The inside of the elastic balloon (161) is fitted with an auxiliary spring plate (163) to assist in its own deformation and reset. The output direction of the two one-way valve tubes (162) is from the elastic balloon (161) to the liquid drainage tube (17) fitted with the front end of the drive shaft (4).

6. A network security isolation device according to claim 2, characterized in that: The outer protective box (2) is composed of a frame box (211) and a sealing frame plate (212). The interior of the frame box (211) and the interior of the sealing frame plate (212) are both nested with protective filters. The top inner wall of the frame box (211) is provided with a first threaded hole. The sealing frame plate (212) is installed with the first threaded hole by screws. The top surface and bottom surface of the isolation device body (1) are fixedly connected with damping rods (22), and the top of the damping rods (22) on the top of the isolation device body (1) is in close contact with the top surface of the sealing frame plate (212).

7. A network security isolation device according to claim 6, characterized in that: A temperature sensor (14) is fixedly installed on the inner wall of one side of the frame box (211). The temperature sensor (14) is electrically connected to a controller via a wire. The controller is electrically connected to a servo motor (19) and an electric push rod (18) via a wire.

8. A network security isolation device according to claim 6, characterized in that: The bottom sides of the frame box (211) and the top sides of the support frame (3) are both set with L-shaped flange structures, and the L-shaped flange structures on both sides of the top of the support frame (3) are provided with second threaded holes. The L-shaped flange structure at the bottom of the frame box (211) and the corresponding threaded hole are installed by screws. The bottom of the frame box (211) is provided with a third threaded hole, and one end of the guide pipe (9) is installed with the third threaded hole by screws.

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