Computer network security device

Abstract

The invention discloses a computer network security device, and relates to the field of computers, the computer network security device comprises a box body, the front surface of the box body is provided with a transparent plate, the upper surface of the box body is provided with a power switch and a USB interface, the left side of the box body is provided with an air outlet hole, and the inner wall of the box body is provided with an upper air hole; and the inner wall of the box body is fixedly connected with a damping fixed drying mechanism. By arranging a transparent plate, it is convenient to observe the condition in the box body, by arranging a power switch, power is supplied to the interior of the box body in a concentrated mode, by arranging a USB interface, USB transmission of data is facilitated, by arranging an air outlet hole and an upper air hole, heat dissipation and ventilation are facilitated, and by arranging a damping fixing and drying mechanism, in the working and moving process of the box body, the drying effect of the box body is improved. Equipment installed in the box body is protected, damped and cooled, moist moisture in the air is absorbed at the same time, and the moisture of the air entering the box body is prevented from causing short circuit of the equipment.

Description

Technical Field

[0001] The present invention relates to the computer field, and in particular to a computer network security device. Background Art

[0002] Computers, commonly known as computers, are modern electronic computing machines used for high-speed calculations. They can perform numerical and logical calculations, and also have storage and memory functions. They are modern intelligent electronic devices that can run according to programs and automatically and quickly process massive amounts of data.

[0003] When the computer is being transported and moved, it will produce bumps and vibrations, which will damage the equipment installed in the computer. At the same time, if the air is humid and has a high water content in the working environment, it will cause moisture short circuits in the equipment and even cause fires, posing a safety hazard. Therefore, a computer network security device is needed. Summary of the invention

[0004] The purpose of the present application is to provide a computer network security device to solve the problem mentioned in the above background technology that during the process of transportation and movement of the computer, the device installed in the computer will be damaged. At the same time, if the air in the working environment is humid and the water content is high, it will cause moisture short circuit of the equipment and even cause fire, posing a safety hazard if the computer is in such a working environment for a long time.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a computer network security device, comprising a box body, a transparent plate is installed on the front of the box body, a power switch and a USB interface are installed on the upper surface of the box body, an air outlet is opened on the left side of the box body, an upper air hole is opened on the inner wall of the box body, and a shock-absorbing, fixing and drying mechanism is fixedly connected to the inner wall of the box body.

[0006] By means of the above structure, by setting a transparent plate, it is convenient to observe the situation inside the box, by setting a power switch, the inside of the box can be powered centrally, by setting a USB interface, USB data transmission is convenient, by setting air outlets and upper air holes, heat dissipation and ventilation are convenient, and by setting a shock-absorbing, fixed and drying mechanism, during the working and moving process of the box, the equipment installed in the box is protected and shock-absorbing, and the moisture in the air is absorbed while dissipating heat to prevent moisture from entering the air in the box and causing a short circuit in the equipment.

[0007] Preferably, the shock-absorbing fixed drying mechanism includes a mounting plate fixedly connected to the inner wall of the box body, an L-shaped plate is fixedly connected to the upper surface of the mounting plate, a conical plate is slidably connected to the inner wall of the mounting plate, an avoidance hole is opened on the inner bottom wall of the mounting plate, an adjusting screw is threadedly connected to the inner wall of the L-shaped plate, and the bottom end of the adjusting screw is rotatably connected to the upper surface of the conical plate.

[0008] By setting up a mounting plate, the sliding installation of the motion adjustment plate is facilitated and support is given to the motion adjustment plate. By setting up an L-shaped plate, the installation of the adjusting screw is kept stable. By setting up an adjusting screw, the adjusting screw is rotated to drive the conical plate to slide and adjust its height. By setting up an avoidance hole, the movement of the conical plate is avoided. By setting up a conical plate, the surface of the frontmost gasket is blocked from contacting, and multiple motion adjustment plates are kept stable in the mounting plate and will not slide after installation.

[0009] Preferably, a motion adjustment plate is slidably installed on the inner wall of the mounting plate, the inner wall of the motion adjustment plate is slidably connected to a fixed block, the front side of the fixed block is rotatably connected to a one-way screw rod, the front side of the one-way screw rod is fixedly connected to a gasket, and the surface of the one-way screw rod is threadedly connected to the inner wall of the motion adjustment plate.

[0010] A fixed block is provided to be connected with one end of the one-way screw rod, so that after the one-way screw rod rotates, the position of the gasket is changed, and the gasket is provided to be in protective contact with the surface of the front motion adjustment plate.

[0011] Preferably, one side of the motion adjustment plate is fixedly connected to a U-shaped support plate, the inner wall of the U-shaped support plate is fixedly connected to a guide rod, the surface of the guide rod is slidably connected to a contact plate, and the opposite back surfaces of a pair of contact plates are fixedly connected to a damping shock-absorbing spring, the damping shock-absorbing spring is sleeved on the surface of the guide rod, and one end of the damping shock-absorbing spring is fixedly connected to the inner wall of the U-shaped support plate.

[0012] By setting a U-shaped support plate, the connection support of the guide rod is achieved. By setting a guide rod, the guiding movement of the contact plate and the ring plate is maintained, and the installation of the damping shock-absorbing spring is kept stable. By setting a damping shock-absorbing spring, shock absorption and pressure resistance are performed. By setting a contact plate, it is in contact with the surface of the ring plate to perform force contact.

[0013] Preferably, the surface of the guide rod is slidably connected with a ring plate, and the ring plate is installed between the upper and lower contact plates. The surface of the ring plate is fixedly connected with a fixing box, and the inner wall of the fixing box is rotatably connected with positive and negative screw rods. The surfaces of the positive and negative screw rods are threadedly connected with a front plate and a rear plate, and the surfaces of the front plate and the rear plate are slidably connected to the inner wall of the fixing box.

[0014] By setting a fixed box, stable support for the forward and reverse screw rods is maintained. By setting the forward and reverse screw rods, the operator rotates the forward and reverse screw rods, and the rotation of the forward and reverse screw rods drives the front plate and the rear plate to move closer to or away from each other. By setting the front plate and the rear plate, the front clamping plate and the rear clamping plate are respectively driven to move.

[0015] Preferably, one side of the front plate is fixedly connected to a front splint, one side of the rear plate is fixedly connected to a rear splint, a filter is installed on the inner wall of the box, the inner wall of the box is fixedly connected to a support plate, and the top of the support plate is fixedly connected to a placement box.

[0016] By setting the front clamping plate and the rear clamping plate, the clamping of the object placed between the front clamping plate and the rear clamping plate is adjusted, by setting the filter net, the air impurities entering the box are filtered, by setting the support plate, the placement box is supported, and by setting the placement box, the air desiccant powder is placed.

[0017] Preferably, a forward and reverse motor is fixedly connected to the inner wall of the box body, an output end of the forward and reverse motor is fixedly connected to an inlet fan blade, and a through hole is opened on the lower surface of the placement box.

[0018] By setting a forward and reverse motor, the forward and reverse motor is started, and the output end of the forward and reverse motor drives the fan blades to rotate. The rotation of the fan blades drives the outside air to enter the box through the filter, and then enters through the upper air hole to cool the equipment. By setting a through hole, interference with the cam is avoided.

[0019] Preferably, the other output end of the forward and reverse motor is fixedly connected with a cam, the inner wall of the placement box is slidably connected with a strap, the upper surface of the placement box is provided with a plurality of small holes, and the surface of the cam contacts the lower surface of the strap.

[0020] By setting a cam, the other output end of the forward and reverse motor drives the cam to rotate, and the cam rotates and contacts the lower surface of the strap, driving the strap to move up and down in a cycle, spreading the desiccant powder placed on the strap, achieving a better dehumidification effect.

[0021] In summary, the technical effects and advantages of the present invention are as follows: In the present invention, by providing a transparent plate, it is convenient to observe the situation inside the box, by providing a power switch, the inside of the box is powered centrally, by providing a USB interface, USB transmission of data is convenient, by providing air outlets and upper air holes, heat dissipation and ventilation are convenient, by providing a mounting plate, the sliding installation of the motion adjustment plate is convenient, and support is given to the motion adjustment plate, by providing an L-shaped plate, the installation stability of the adjustment screw is maintained, by providing an adjustment screw, the adjustment screw is rotated to drive the conical plate to slide and adjust its height, by providing an avoidance hole, the movement of the conical plate is avoided, and by providing a conical plate, the surface of the gasket in front is blocked, so that the stability of multiple motion adjustment plates in the mounting plate is maintained and they will not slide after installation.

[0022] In the present invention, a fixed block is provided to be connected to one end of the one-way screw rod, so that after the one-way screw rod is rotated, the position of the gasket is changed, the gasket is provided to be in protective contact with the surface of the motion adjustment plate in front, and the U-shaped support plate is provided to realize the connection support of the guide rod, and the guide rod is provided to maintain the guiding movement of the contact plate and the ring plate, while maintaining the stable installation of the damping shock-absorbing spring, and the damping shock-absorbing spring is provided to reduce shock and resist pressure, and the contact plate is provided to be in contact with the surface of the ring plate to perform force contact, and the fixed box is provided to maintain stable support for the positive and negative screw rods, and the positive and negative screw rods are provided, and the operator rotates the positive and negative screw rods, and the rotation of the positive and negative screw rods drives the front plate and the rear plate to approach or move away from each other, and the front plate and the rear plate are provided to respectively drive the front clamping plate and the rear clamping plate to move, and the front clamping plate and the rear clamping plate are provided to adjust the clamping of the object placed between the front clamping plate and the rear clamping plate.

[0023] In the present invention, a filter is provided to filter air impurities entering the box, a support plate is provided to support the placement box, a placement box is provided to place air desiccant powder, a forward and reverse motor is provided, the forward and reverse motor is started, and the output end of the forward and reverse motor drives the fan blades to rotate. The rotation of the fan blades drives the outside air to enter the box through the filter, and then enters the box through the upper air hole to cool the equipment. The through hole is provided to avoid interference with the cam. The cam is provided, and the other output end of the forward and reverse motor drives the cam to rotate. The rotation of the cam contacts the lower surface of the strap, driving the strap to move up and down in a cycle, dispersing the desiccant powder placed on the strap, thereby achieving a better dehumidification effect. By means of the above structure, during the working and moving process of the box, the equipment installed in the box is protected and damped, and the moisture in the air is absorbed while dissipating the heat to prevent the moisture in the air entering the box from causing a short circuit in the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the three-dimensional structure of the air outlet in the embodiment of the present application; Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting plate in the embodiment of the present application; Figure 4 This is a schematic diagram of the three-dimensional structure of the one-way screw in the embodiment of the present application; Figure 5 For the embodiment of this application Figure 4 A schematic diagram of the enlarged structure at A in the middle; Figure 6 It is a schematic diagram of the three-dimensional structure of the cam in the embodiment of the present application.

[0026] In the figure: 1, box body; 2, power switch; 3, USB interface; 4, transparent plate; 5, air outlet; 6, upper air outlet; 7, shock-absorbing fixed drying mechanism; 701, mounting plate; 702, U-shaped support plate; 703, L-shaped plate; 704, adjusting screw; 705, cone plate; 706, avoidance hole; 707, motion adjustment plate; 708, front clamping plate; 709, rear clamping plate; 710, ring plate; 711, fixed Fixed block; 712, one-way screw rod; 713, gasket; 714, contact plate; 715, damping spring; 716, guide rod; 717, fixing box; 718, forward and reverse screw rod; 719, front plate; 720, rear plate; 721, filter; 722, fan blade; 723, forward and reverse motor; 724, small hole; 725, cam; 726, support plate; 727, board; 728, placement box. DETAILED DESCRIPTION

[0027] 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.

[0028] Example: Reference Figure 1-6A computer network security device shown in the figure comprises a box body 1, a transparent plate 4 is installed on the front of the box body 1, a power switch 2 and a USB interface 3 are installed on the upper surface of the box body 1, an air outlet 5 is opened on the left side of the box body 1, an upper air hole 6 is opened on the inner wall of the box body 1, and a shock-absorbing, fixing and drying mechanism 7 is fixedly connected to the inner wall of the box body 1.

[0029] By means of the above structure, by setting a transparent plate 4, it is convenient to observe the situation inside the box 1, by setting a power switch 2, the inside of the box 1 is powered centrally, by setting a USB interface 3, USB transmission of data is convenient, by setting air outlets 5 and upper air holes 6, heat dissipation and ventilation are convenient, and by setting a shock-absorbing, fixed and drying mechanism 7, during the working and moving process of the box 1, the equipment installed in the box 1 is protected and shock-absorbing, and the moisture in the air is absorbed while dissipating heat to prevent moisture from entering the air in the box 1 and causing a short circuit in the equipment.

[0030] As a preferred implementation scheme in this embodiment, the shock-absorbing fixed drying mechanism 7 includes a mounting plate 701 fixedly connected to the inner wall of the box body 1, an L-shaped plate 703 is fixedly connected to the upper surface of the mounting plate 701, a conical plate 705 is slidably connected to the inner wall of the mounting plate 701, an avoidance hole 706 is opened on the inner bottom wall of the mounting plate 701, an adjusting screw 704 is threadedly connected to the inner wall of the L-shaped plate 703, and the bottom end of the adjusting screw 704 is rotatably connected to the upper surface of the conical plate 705.

[0031] By setting the mounting plate 701, the sliding installation of the motion adjustment plate 707 is facilitated, and the motion adjustment plate 707 is supported. By setting the L-shaped plate 703, the installation of the adjusting screw 704 is kept stable. By setting the adjusting screw 704, the adjusting screw 704 is rotated to drive the conical plate 705 to slide and adjust its height. By setting the avoidance hole 706, the movement of the conical plate 705 is avoided. By setting the conical plate 705, the surface of the frontmost gasket 713 is blocked from contacting, and the stability of multiple motion adjustment plates 707 in the mounting plate 701 is maintained, and they will not slide after installation.

[0032] In this embodiment, a motion adjustment plate 707 is slidably installed on the inner wall of the mounting plate 701, and a fixed block 711 is slidably connected to the inner wall of the motion adjustment plate 707. The front side of the fixed block 711 is rotatably connected to a one-way screw rod 712, and the front side of the one-way screw rod 712 is fixedly connected to a gasket 713. The surface of the one-way screw rod 712 is threadedly connected to the inner wall of the motion adjustment plate 707.

[0033] By setting a fixed block 711 connected to one end of the one-way screw rod 712, the position of the gasket 713 is changed after the one-way screw rod 712 rotates, and the gasket 713 is set to contact with the surface protection of the front motion adjustment plate 707.

[0034] In this embodiment, one side of the motion adjustment plate 707 is fixedly connected to a U-shaped support plate 702, the inner wall of the U-shaped support plate 702 is fixedly connected to a guide rod 716, the surface of the guide rod 716 is slidably connected to a contact plate 714, and the opposite back surfaces of a pair of contact plates 714 are fixedly connected to damping shock absorbing springs 715, the damping shock absorbing springs 715 are sleeved on the surface of the guide rod 716, and one end of the damping shock absorbing spring 715 is fixedly connected to the inner wall of the U-shaped support plate 702.

[0035] By setting up a U-shaped support plate 702, the connection support of the guide rod 716 is realized. By setting up the guide rod 716, the guiding movement of the contact plate 714 and the ring plate 710 is maintained, and at the same time, the installation stability of the damping shock-absorbing spring 715 is maintained. By setting up the damping shock-absorbing spring 715, shock absorption and pressure resistance are performed. By setting up the contact plate 714, it is in contact with the surface of the ring plate 710 to perform force contact.

[0036] In this embodiment, the surface of the guide rod 716 is slidably connected to a ring plate 710, and the ring plate 710 is installed between the upper and lower contact plates 714. The surface of the ring plate 710 is fixedly connected to a fixing box 717. The inner wall of the fixing box 717 is rotatably connected to a forward and reverse screw rod 718. The surface of the forward and reverse screw rod 718 is threadedly connected to a front plate 719 and a rear plate 720. The surfaces of the front plate 719 and the rear plate 720 are slidably connected to the inner wall of the fixing box 717.

[0037] By setting a fixed box 717, stable support for the forward and reverse screw rods 718 is maintained. By setting the forward and reverse screw rods 718, the operator rotates the forward and reverse screw rods 718, and the rotation of the forward and reverse screw rods 718 drives the front plate 719 and the rear plate 720 to move closer to or away from each other. By setting the front plate 719 and the rear plate 720, the front splint 708 and the rear splint 709 are driven to move respectively.

[0038] In this embodiment, one side of the front plate 719 is fixedly connected to the front splint 708, one side of the rear plate 720 is fixedly connected to the rear splint 709, a filter screen 721 is installed on the inner wall of the box body 1, the inner wall of the box body 1 is fixedly connected to the support plate 726, and the top of the support plate 726 is fixedly connected to the placement box 728.

[0039] By setting the front clamping plate 708 and the rear clamping plate 709, the clamping of the object placed between the front clamping plate 708 and the rear clamping plate 709 is adjusted, and by setting the filter net 721, the air impurities entering the box body 1 are filtered. By setting the support plate 726, the support of the placement box 728 is achieved. By setting the placement box 728, air desiccant powder is placed.

[0040] In this embodiment, a forward and reverse motor 723 is fixedly connected to the inner wall of the box body 1, an output end of the forward and reverse motor 723 is fixedly connected to the fan blade 722, and a through hole is opened on the lower surface of the placement box 728.

[0041] By setting up a forward and reverse motor 723, the forward and reverse motor 723 is started, and the output end of the forward and reverse motor 723 drives the fan blades 722 to rotate. The rotation of the fan blades 722 drives the outside air to enter the box body 1 through the filter 721, and then enters through the upper air hole 6 to cool the equipment. By setting a through hole, interference with the cam 725 is avoided.

[0042] In this embodiment, the other output end of the forward and reverse motor 723 is fixedly connected to a cam 725, the inner wall of the placement box 728 is slidably connected to a strap 727, a plurality of small holes 724 are opened on the upper surface of the placement box 728, and the surface of the cam 725 contacts the lower surface of the strap 727.

[0043] By setting the cam 725, the other output end of the forward and reverse motor 723 drives the cam 725 to rotate, and the cam 725 rotates to contact the lower surface of the strap 727, driving the strap 727 to move up and down in a cycle, spreading the desiccant powder placed on the strap 727, thereby achieving a better dehumidification effect.

[0044] The working principle of the present invention is as follows: a computer network security device, when in use, the user opens the transparent plate 4, slides the motion adjustment plate 707 into the mounting plate 701, and when in use, rotates the positive and negative screw rods 718, the positive and negative screw rods 718 rotate to drive the front plate 719 and the rear plate 720 to move closer or farther from each other, and the front plate 719 and the rear plate 720 respectively drive the front clamping plate 708 and the rear clamping plate 709 to move, so that the working object can be placed and adjusted between the front clamping plate 708 and the rear clamping plate 709 for operation. After the one-way screw rod 712 is clamped and fixed, the one-way screw rod 712 can be rotated. After the one-way screw rod 712 is rotated, the position of the gasket 713 is changed, so that the front of the gasket 713 is in protective contact with the surface of a rear motion adjustment plate 707. When multiple motion adjustment plates 707 are installed, the adjusting screw rod 704 is rotated to drive the conical plate 705 to slide and adjust its height. The inclined surface of the conical plate 705 blocks the surface of the front gasket 713, so that the multiple motion adjustment plates 707 are kept stable in the mounting plate 701. Sliding, during the bumpy transportation of the equipment, the ring plate 710 is driven to slide along the surface of the guide rod 716, the damping shock-absorbing spring 715 is used for shock absorption and pressure resistance, the contact plate 714 is in contact with the surface of the ring plate 710, and is in force contact. When the equipment is in use, the forward and reverse motor 723 is started, and the output end of the forward and reverse motor 723 drives the fan blade 722 to rotate. The rotation of the fan blade 722 drives the outside air to enter the box body 1 through the filter screen 721, and then enters through the upper air hole 6 to cool the equipment. The other output end of the forward and reverse motor 723 drives the cam 725 to rotate, and the cam 725 rotates and contacts with the lower surface of the strap 727, driving the strap 727 to move up and down in a cycle, and the desiccant powder placed on the strap 727 is scattered to achieve a better dehumidification effect. By means of the above structure, during the working and moving process of the box body 1, the equipment installed in the box body 1 is protected and shock-absorbed, and the moisture in the air is absorbed while the heat is dissipated to prevent the moisture in the air from entering the box body 1 and causing a short circuit of the equipment.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A computer network security device, comprising a housing (1), characterized in that: A transparent plate (4) is installed on the front of the box (1); a power switch (2) and a USB interface (3) are installed on the upper surface of the box (1); an air outlet (5) is opened on the left side of the box (1); an upper air hole (6) is opened on the inner wall of the box (1); and a shock-absorbing and fixing drying mechanism (7) is fixedly connected to the inner wall of the box (1).

2. A computer network security device according to claim 1, characterized in that: The shock-absorbing fixed drying mechanism (7) comprises a mounting plate (701) fixedly connected to the inner wall of the box body (1); an L-shaped plate (703) is fixedly connected to the upper surface of the mounting plate (701); a conical plate (705) is slidably connected to the inner wall of the mounting plate (701); an avoidance hole (706) is provided on the inner bottom wall of the mounting plate (701); an adjusting screw (704) is threadedly connected to the inner wall of the L-shaped plate (703); and the bottom end of the adjusting screw (704) is rotatably connected to the upper surface of the conical plate (705).

3. A computer network security device according to claim 2, characterized in that: A motion adjustment plate (707) is slidably mounted on the inner wall of the mounting plate (701); a fixing block (711) is slidably connected to the inner wall of the motion adjustment plate (707); a one-way screw rod (712) is rotatably connected to the front face of the fixing block (711); a gasket (713) is fixedly connected to the front face of the one-way screw rod (712); and a surface of the one-way screw rod (712) is threadedly connected to the inner wall of the motion adjustment plate (707).

4. A computer network security device according to claim 3, characterized in that: A U-shaped support plate (702) is fixedly connected to one side of the motion adjustment plate (707); a guide rod (716) is fixedly connected to the inner wall of the U-shaped support plate (702); a contact plate (714) is slidably connected to the surface of the guide rod (716); a pair of contact plates (714) are fixedly connected to opposite back surfaces of each other with damping shock absorbing springs (715); the damping shock absorbing springs (715) are sleeved on the surface of the guide rod (716); and one end of the damping shock absorbing spring (715) is fixedly connected to the inner wall of the U-shaped support plate (702).

5. A computer network security device according to claim 4, characterized in that: The surface of the guide rod (716) is slidably connected to a ring plate (710), the ring plate (710) is installed between the upper and lower contact plates (714), the surface of the ring plate (710) is fixedly connected to a fixing box (717), the inner wall of the fixing box (717) is rotatably connected to a forward and reverse screw rod (718), the surface of the forward and reverse screw rod (718) is threadedly connected to a front plate (719) and a rear plate (720), and the surfaces of the front plate (719) and the rear plate (720) are slidably connected to the inner wall of the fixing box (717).

6. A computer network security device according to claim 5, characterized in that: One side of the front plate (719) is fixedly connected to a front clamping plate (708), and one side of the rear plate (720) is fixedly connected to a rear clamping plate (709).

7. A computer network security device according to claim 1, characterized in that: A filter screen (721) is installed on the inner wall of the box body (1), a support plate (726) is fixedly connected to the inner wall of the box body (1), and a placement box (728) is fixedly connected to the top of the support plate (726).

8. A computer network security device according to claim 7, characterized in that: A forward and reverse motor (723) is fixedly connected to the inner wall of the box body (1); an output end of the forward and reverse motor (723) is fixedly connected to an inlet fan blade (722); and a through hole is provided on the lower surface of the placement box (728).

9. A computer network security device according to claim 8, characterized in that: The other output end of the forward and reverse motor (723) is fixedly connected to a cam (725), and the inner wall of the placement box (728) is slidably connected to a strap (727).

10. A computer network security device according to claim 9, characterized in that: The upper surface of the placement box (728) is provided with a plurality of small holes (724), and the surface of the cam (725) contacts the lower surface of the strap (727).

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