A ventilation and heat dissipation cabinet based on computer network security

Abstract

The invention relates to the technical field of cabinets, and provides a ventilation and heat dissipation cabinet based on computer network, comprising a cabinet shell, a ventilation shell, a cooling system, a rotating mechanism, a dustproof system, a cleaning system and a heat dissipation fan module, wherein the ventilation shell comprises a protective cover, a grille, a tooth groove and a ventilation pipe, the rotating mechanism comprises a driving member, a sealing cover plate, a rib plate and a scraper strip, and the dustproof system comprises a mesh belt, a mesh roller shell and a second transmission gear. On the one hand, the purpose of efficient heat dissipation and cooling can be achieved by utilizing the warp cooling pipe and the evaporation and heat absorption of water sprayed on the surface of the mesh belt, and on the other hand, the purpose of automatically cleaning up adhered sludge or foreign matter can be achieved by controlling the rotating mechanism and the dustproof system to rotate together with the ventilation pipe as the axis, thereby reducing the resistance of air flow and improving the working efficiency of heat dissipation and cooling, and having the characteristics of efficient heat dissipation, easy maintenance and cleaning, and stable heat dissipation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of cabinets, and in particular to a ventilation and heat dissipation cabinet based on computer network security. Background Art

[0002] A cabinet is an object used to store components such as network servers and related control equipment. It can provide protection for stored components, shield electromagnetic interference, and arrange components in an orderly and neat manner to facilitate future maintenance. As an important core component of a computer local area network, protecting and maintaining the network server has become a very important link. In order to prevent the network server from being arbitrarily damaged and operated by the outside world, the network server is usually installed inside a dedicated network server cabinet.

[0003] Patent No. CN113015366B discloses a computer network security protection device with multi-fan heat dissipation, which relates to the technical field of network server cabinets, including a cabinet body, a placement component and a cooling component, wherein the cabinet body specifically includes a cabinet bottom plate, a cabinet top plate, a support bar, a cabinet side plate, a cabinet panel and a limit bar, a placement component is provided with several and is evenly distributed on the inner side of the cabinet body, the placement component is used to stably place the network server and specifically includes a placement plate, a clamping bar, a connecting plate and a limit plate, a cooling component is provided with several and is correspondingly distributed on the lower side of each placement component, the cooling component is used to quickly cool the network server and specifically includes a diverter hood, an air intake fan, a diverter pipe, an air intake hood and a pre-cooling part.

[0004] The above-mentioned computer network security protection device with multiple fans for heat dissipation also has the following defects: due to the long-term air circulation process, foreign matter such as dust will accumulate or adhere to the position of the air inlet or the air inlet cover. On the one hand, the dust increases the resistance to air circulation, and on the other hand, it reduces the efficiency of heat dissipation and cooling. At present, it is impossible to automatically and effectively clean the dust at the position of the air inlet or the air inlet cover, so it is impossible to maintain a stable heat dissipation efficiency. Summary of the invention

[0005] The object of the present invention is to provide a ventilation and heat dissipation cabinet based on computer network security, aiming to solve the problems existing when using existing cabinets.

[0006] To achieve the above object, the present invention provides the following technical solution: a ventilation and heat dissipation cabinet based on computer network security, comprising a cabinet housing and a heat dissipation fan module, wherein the side wall of the cabinet housing is provided with a dustproof mesh hole, and the heat dissipation fan module is installed at the dustproof mesh hole, and further comprising:

[0007] A ventilation housing fixedly connected to the top of the cabinet housing, the ventilation housing comprising a protective cover, a grille, a tooth groove and a ventilation pipe, the protective cover and the ventilation pipe are both fixedly connected to the cabinet housing, a plurality of grilles are arranged on the surface of the protective cover, and a tooth groove is arranged on the outer side of the protective cover;

[0008] Cooling system connected to the protection fixture;

[0009] A rotating mechanism, the rotating mechanism comprising a driving member, a sealing cover plate, a rib plate and a scraper strip, a rib plate is fixedly connected between two sealing cover plates, a scraper strip is fixedly connected to the surface of the rib plate, the sealing cover plate is rotatably connected in the protective cover, the driving member is fixedly connected to the inner wall of the cabinet shell, and the driving member is drivingly connected to the sealing cover plate;

[0010] A dustproof system, the dustproof system comprising a mesh belt, a mesh roller shell and a second transmission gear, the second transmission gear is fixedly connected to the mesh roller shell, the mesh belt is in sliding contact with the surface of the mesh roller shell, the scraper strip is in sliding contact with the surface of the mesh belt, the three ribs and the mesh roller shell are symmetrically distributed about the axis of the protective cover, and the tooth groove is in transmission connection with the second transmission gear;

[0011] A cleaning system is connected to one end of the mesh roller shell.

[0012] As a further solution of the present invention, the cooling system includes a circulating refrigeration module, a first annular circulation pipe, a second annular circulation pipe and a warp cooling pipe, several of the warp cooling pipes are fixedly connected between the first annular circulation pipe and the second annular circulation pipe, the circulating refrigeration module is fixedly connected to the protective cover, the first annular circulation pipe and the second annular circulation pipe are both connected to the circulating refrigeration module, and the warp cooling pipes are distributed between the protective cover and the ribs.

[0013] As a further solution of the present invention, the rotating mechanism further includes a dehumidification component. Three groups of the dehumidification components are fixedly connected between two sealing cover plates. The dehumidification components are located on a side of the mesh belt away from the protective cover.

[0014] As a further solution of the present invention, the rotating mechanism also includes a rotating drum, a first transmission gear and a radial plate. The rotating drum is fixedly connected to the sealing cover plate, the rotating drum is movably sleeved on the surface of the ventilation pipe, the first transmission gear is fixedly connected to the rotating drum, the driving member is transmission-connected to the first transmission gear, and the three radial plates are fixedly connected between the two sealing cover plates.

[0015] As a further solution of the present invention, the ventilation shell also includes a speaker air outlet and an air inlet, the speaker air outlet is provided at one end of the ventilation pipe located in the cabinet shell, the air inlet is provided on the surface of the ventilation pipe located in the protective cover, the three radial plates are in sliding contact with the surface of the ventilation pipe, and the three air inlets are symmetrically distributed about the center of the ventilation pipe.

[0016] As a further solution of the present invention, the cleaning system includes a liquid pump, a fixed pipe, a rotating pipe and a branch pipe. The liquid pump is fixedly connected to the protective cover, one end of the fixed pipe is fixedly connected to the liquid pump, the rotating pipe is rotatably connected to the other end of the fixed pipe, one end of the three branch pipes are connected to the rotating fixed pipe, and the mesh roller shell is connected to the branch pipe.

[0017] As a further solution of the present invention, the dust prevention system includes a rack, a center tube and a third transmission gear, the center tube is fixedly connected to the mesh roller shell, the second transmission gear and the two third transmission gears are fixedly connected to the center tube, the center tube is rotatably connected to the sealing cover plate, a rack is provided on the surface of the mesh belt, the third transmission gear is transmission connected to the rack, and the other end of the branch pipe is rotatably connected to the center tube.

[0018] As a further solution of the present invention, a support plate is fixedly connected to the top of the cabinet shell, the protective cover is fixedly connected to the support plate, a through hole is provided on the surface of the sealing cover plate close to one side of the support plate, and a debris discharge port is provided on the surface of the support plate.

[0019] As a further solution of the present invention, a temperature sensor is also included, and the temperature sensor is fixedly connected to the inner wall of the cabinet shell.

[0020] As a further solution of the present invention, the number of the through holes is three, the through holes correspond to the positions of the three dehumidification components, and the number of the impurity discharge port is one.

[0021] The beneficial effects of the present invention are that, on the one hand, it can utilize the warp cooling tube and the evaporation and heat absorption of water sprayed on the surface of the mesh belt to achieve the purpose of efficient heat dissipation and cooling; on the other hand, by controlling the rotating mechanism and the dust prevention system to rotate with the ventilation tube as the axis, it can achieve the purpose of automatically cleaning up the adhered sludge or foreign matter, reduce the resistance of air flow, and improve the working efficiency of heat dissipation and cooling, and has the characteristics of efficient heat dissipation, easy maintenance and cleaning, and stable heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereogram of the present invention.

[0023] Figure 2 This is a disassembled diagram of the ventilation housing, cooling system, rotating mechanism, dust prevention system and cleaning system of an embodiment of the present invention.

[0024] Figure 3 It is a three-dimensional diagram of a ventilation housing according to an embodiment of the present invention.

[0025] Figure 4 It is a three-dimensional diagram of a cooling system according to an embodiment of the present invention.

[0026] Figure 5It is a three-dimensional diagram of the rotating mechanism according to an embodiment of the present invention.

[0027] Figure 6 It is a three-dimensional diagram of the dust prevention system according to an embodiment of the present invention.

[0028] Figure 7 It is an assembly diagram of the ventilation housing, cooling system, rotating mechanism, dust prevention system and cleaning system of an embodiment of the present invention.

[0029] Figure 8 It is a first cross-sectional view of the assembled ventilation housing, cooling system, rotating mechanism, dust prevention system and cleaning system of an embodiment of the present invention.

[0030] Fig. 9 This is a second cross-sectional view of the ventilation housing, cooling system, rotating mechanism, dust prevention system and cleaning system after being assembled according to an embodiment of the present invention.

[0031] Fig.10 It is a plan cross-sectional view of the invention.

[0032] Fig.11 For invention Fig.10 A partial enlarged view of point a in the middle.

[0033] Figure numerals: 1-cabinet housing, 11-dustproof mesh, 12-support plate, 13-exhaust port, 2-cooling fan module, 3-ventilation housing, 31-protective cover, 32-ventilation pipe, 33-speaker air outlet, 34-air inlet, 35-grid, 37-tooth groove, 4-cooling system, 41-circulation refrigeration module, 42-first annular circulation pipe, 43-second annular circulation pipe, 44-warp cooling pipe, 5-rotation mechanism, 51-driving member , 52-sealing cover plate, 53-rib plate, 54-dehumidification component, 55-scraper strip, 56-rotating drum, 57-first transmission gear, 58-radial plate, 59-through hole, 6-dust prevention system, 61-mesh belt, 62-rack, 63-mesh roller shell, 64-center tube, 65-second transmission gear, 66-third transmission gear, 7-cleaning system, 71-liquid pump, 72-fixed tube, 73-rotating tube, 74-branch pipe, 8-temperature sensor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] See also Figures 1 to 11In one embodiment of the present invention, a ventilation and heat dissipation cabinet based on computer network security includes a cabinet housing 1, a heat dissipation fan module 2 and a temperature sensor 8, wherein the temperature sensor 8 is fixedly connected to the inner wall of the cabinet housing 1, and a dustproof mesh hole 11 is provided on the side wall of the cabinet housing 1, and the heat dissipation fan module 2 is installed at the dustproof mesh hole 11, and further includes:

[0037] A ventilation housing 3 fixedly connected to the top of the cabinet housing 1, the ventilation housing 3 comprising a protective cover 31, a grille 35, a tooth groove 37 and a ventilation pipe 32, the protective cover 31 and the ventilation pipe 32 are both fixedly connected to the cabinet housing 1, a plurality of grilles 35 are provided on the surface of the protective cover 31, and a tooth groove 37 is provided on the outer side of the protective cover 31;

[0038] A cooling system 4 connected to the protection fixture;

[0039] The rotating mechanism 5 includes a driving member 51, a sealing cover plate 52, a rib plate 53 and a scraper strip 55. The rib plate 53 is fixedly connected between the two sealing cover plates 52. The scraper strip 55 is fixedly connected to the surface of the rib plate 53. The sealing cover plate 52 is rotatably connected in the protective cover 31. The driving member 51 is fixedly connected to the inner wall of the cabinet housing 1. The driving member 51 is drivingly connected to the sealing cover plate 52.

[0040] The dustproof system 6 comprises a mesh belt 61, a mesh roller shell 63 and a second transmission gear 65, wherein the second transmission gear 65 is fixedly connected to the mesh roller shell 63, the mesh belt 61 is in sliding contact with the surface of the mesh roller shell, the scraper strip 55 is in sliding contact with the surface of the mesh belt 61, the three ribs 53 and the mesh roller shell 63 are symmetrically distributed about the axis of the protective cover 31, and the tooth groove 37 is in transmission connection with the second transmission gear 65;

[0041] A cleaning system 7 is connected to one end of the mesh roller shell 63.

[0042] See also Figure 5 and Fig. 9 Furthermore, the rotating mechanism 5 also includes a dehumidification component 54. Three groups of the dehumidification components 54 are fixedly connected between the two sealing cover plates 52. The dehumidification components 54 are located on the side of the mesh belt 61 away from the protective cover 31.

[0043] See also Figure 5 and Figure 8 Furthermore, the rotating mechanism 5 also includes a rotating drum 56, a first transmission gear 57 and a radial plate 58. The rotating drum 56 is fixedly connected to the sealing cover plate 52. The rotating drum 56 is movably sleeved on the surface of the ventilation pipe 32. The first transmission gear 57 is fixedly connected to the rotating drum 56. The driving member 51 is transmission-connected to the first transmission gear 57. The three radial plates 58 are fixedly connected between the two sealing cover plates 52.

[0044] See also Figures 3 to 11 Furthermore, the ventilation shell 3 also includes a speaker air outlet 33 and an air inlet 34. The speaker air outlet 33 is provided at one end of the ventilation pipe 32 located in the cabinet shell 1, and the air inlet 34 is provided on the surface of the ventilation pipe 32 located in the protective cover 31. The three radial plates 58 are in sliding contact with the surface of the ventilation pipe 32, and the three air inlets 34 are symmetrically distributed about the center of the ventilation pipe 32.

[0045] In the embodiment of the present invention, the temperature sensor 8 is used to monitor the internal temperature of the cabinet housing 1 in real time, and the dehumidification component 54 is a desiccant or a water-absorbing sponge.

[0046] See also Figures 4 to 9 In one embodiment of the present invention, the cooling system 4 includes a circulating refrigeration module 41, a first annular circulation pipe 42, a second annular circulation pipe 43 and a warp cooling pipe 44, and several of the warp cooling pipes 44 are fixedly connected between the first annular circulation pipe 42 and the second annular circulation pipe 43, the circulating refrigeration module is fixedly connected to the protective cover 31, the first annular circulation pipe 42 and the second annular circulation pipe 43 are both connected to the circulating refrigeration module 41, and the warp cooling pipes 44 are distributed between the protective cover 31 and the ribs 53.

[0047] In an embodiment of the present invention, the internal medium of the circulating refrigeration module 41 is liquid. The circulating refrigeration module 41 is not only used to cool the liquid, but also used to drive the liquid to circulate between the first annular circulation pipe 42, the second annular circulation pipe 43 and the warp cooling pipe 44. The moisture in the air condenses into water droplets on the surface of the warp cooling pipe 44, and the water droplets flow along the warp cooling pipe 44 to the surface of the sealing cover plate 52.

[0048] See also Figures 7 to 10 In one embodiment of the present invention, the cleaning system 7 includes a liquid pump 71, a fixed pipe 72, a rotating pipe 73 and a branch pipe 74. The liquid pump 71 is fixedly connected to the protective cover 31, one end of the fixed pipe 72 is fixedly connected to the liquid pump 71, and the rotating pipe 73 is rotatably connected to the other end of the fixed pipe 72. One ends of the three branch pipes 74 are all connected to the rotating fixed pipe 72, and the mesh roller shell 63 is connected to the branch pipe 74.

[0049] See also Figures 6 to 10Furthermore, the dust prevention system 6 includes a rack 62, a center tube 64 and a third transmission gear 66, the center tube 64 is fixedly connected to the mesh roller shell 63, the second transmission gear 65 and the two third transmission gears 66 are fixedly connected to the center tube 64, the center tube 64 is rotatably connected to the sealing cover plate 52, a rack 62 is provided on the surface of the mesh belt 61, the third transmission gear 66 is transmission-connected to the rack 62, and the other end of the branch pipe 74 is rotatably connected to the center tube 64.

[0050] See also Fig.10 and Fig.11 Furthermore, a support plate 12 is fixedly connected to the top of the cabinet shell 1, the protective cover 31 is fixedly connected to the support plate 12, a through hole 59 is provided on the surface of the sealing cover plate 52 close to the side of the support plate 12, and a debris discharge port 13 is provided on the surface of the support plate 12.

[0051] In an embodiment of the present invention, there are three through holes 59, which correspond to the positions of the three dehumidification components 54. The number of the impurity discharge port 13 is one. The liquid pump 71 is connected to the pure water storage tank and is used to spray pure water toward the mesh belt 61 through the fixed pipe 72, the rotating pipe 73, the branch pipe 74, the central pipe 64 and the mesh roller shell 63.

[0052] Working principle: The heat dissipation fan module 2 is controlled to discharge the hot air in the cabinet housing 1 outward through the dustproof mesh 11. The negative pressure generated in this process drives the outside air into the protective cover 31 through the grille 35, and then passes through the warp cooling pipe 44, the mesh belt 61, the dehumidification component 54, the air inlet 34, the ventilation pipe 32 and the protective cover 31 to enter the cabinet housing 1. The several warp cooling pipes 44 symmetrically distributed about the axis of the protective cover 31 are used to cool the air on the one hand, and condense the moisture in the air into water droplets on the other hand. The mesh belt 61 is used to filter and isolate dust or particulate matter in the air. The dehumidification component 54 is used to further remove moisture and particulate matter in the air to prevent moisture and dust from entering the cabinet housing 1 and threatening the operation safety of internal electronic components.

[0053] After the cooling fan module 2 has been running for a certain period of time, the control driving member 51 and the liquid pump 71 are started. The driving member 51 controls the rotating mechanism 5 and the dust-proof system 6 to rotate together with the ventilation pipe 32 as the axis through the first transmission gear 57. The centrifugal force generated by the rotating rotating mechanism 5 is used to clean up the sludge or foreign matter adhering to the surface of the mesh belt 61. The rotating dust-proof system 6 drives the mesh roller shell 63 to rotate by the second transmission gear 65 and the tooth groove 37. The rotating mesh roller shell 63 drives the mesh belt 61 to move by the third transmission gear 66 and the rack 62. The liquid pump 71 drives the mesh belt 61 through the fixed pipe 72 and the rotating gear 57. The tube 73, the branch tube 74, the central tube 64 and the mesh roller shell 63 spray pure water toward the mesh belt 61. The moving mesh belt 61 can further clean up the adhered sludge or foreign matter during the sliding contact with the scraper strip 55. On the one hand, it can reduce the resistance of air flow, thereby improving the efficiency of heat dissipation and cooling. On the other hand, the wet mesh belt 61 can further reduce the temperature of the air by utilizing the principle of evaporation and heat absorption, thereby further improving the efficiency of heat dissipation and cooling. When the through hole 59 is aligned with the impurity discharge port 13, the cleaned foreign matter and the water droplets flowing down the surface of the warp cooling tube 44 are discharged through the through hole 59 and the impurity discharge port 13.

[0054] In summary, the present application utilizes a structural design in which the ventilation shell 3, the cooling system 4, the rotating mechanism 5, the rotating mechanism 5, the dust-proof system 6 and the cleaning system 7 cooperate with each other. On the one hand, it can utilize the warp cooling tube 44 and the evaporation and heat absorption of water sprayed on the surface of the mesh belt 61 to achieve the purpose of efficient heat dissipation and cooling. On the other hand, by controlling the rotating mechanism 5 and the dust-proof system 6 to rotate together with the ventilation tube 32 as the axis, the purpose of automatically cleaning up the adhered sludge or foreign matter can be achieved, thereby reducing the resistance of air flow and improving the working efficiency of heat dissipation and cooling. It has the characteristics of efficient heat dissipation, easy maintenance and cleaning, and stable heat dissipation efficiency.

[0055] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the main purpose of the invention.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ventilation and heat dissipation cabinet based on computer network security, comprising a cabinet housing (1) and a heat dissipation fan module (2), wherein a dustproof mesh hole (11) is arranged on a side wall of the cabinet housing (1), and a heat dissipation fan module (2) is installed at the dustproof mesh hole (11), characterized in that: Also includes: A ventilation housing (3) fixedly connected to the top of a cabinet housing (1), the ventilation housing (3) comprising a protective cover (31), a grille (35), a tooth groove (37) and a ventilation pipe (32), the protective cover (31) and the ventilation pipe (32) both being fixedly connected to the cabinet housing (1), a plurality of grilles (35) being arranged on the surface of the protective cover (31), and a tooth groove (37) being arranged on the outer side of the protective cover (31); A cooling system (4) fixedly connected to the protection; A rotating mechanism (5), the rotating mechanism (5) comprising a driving member (51), a sealing cover plate (52), a rib plate (53) and a scraper strip (55), the rib plate (53) being fixedly connected between the two sealing cover plates (52), the scraper strip (55) being fixedly connected to the surface of the rib plate (53), the sealing cover plate (52) being rotatably connected in the protective cover (31), the driving member (51) being fixedly connected to the inner wall of the cabinet housing (1), and the driving member (51) being drivingly connected to the sealing cover plate (52); A dustproof system (6), the dustproof system (6) comprising a mesh belt (61), a mesh roller shell (63) and a second transmission gear (65), the second transmission gear (65) being fixedly connected to the mesh roller shell (63), the mesh belt (61) being in sliding contact with the surface of the mesh roller shell, the scraper strip (55) being in sliding contact with the surface of the mesh belt (61), the three ribs (53) and the mesh roller shell (63) being symmetrically distributed about the axis of the protective cover (31), and the tooth groove (37) being in transmission connection with the second transmission gear (65); a cleaning system (7) connected to one end of the mesh roller shell (63); The cleaning system (7) comprises a liquid pump (71), a fixed pipe (72), a rotating pipe (73) and a branch pipe (74); the liquid pump (71) is fixedly connected to the protective cover (31); one end of the fixed pipe (72) is fixedly connected to the liquid pump (71); the rotating pipe (73) is rotatably connected to the other end of the fixed pipe (72); one end of each of the three branch pipes (74) is connected to the rotating fixed pipe (72); and the mesh roller shell (63) is in communication with the branch pipe (74).

2. A ventilation and heat dissipation cabinet based on computer network security according to claim 1, characterized in that: The cooling system (4) comprises a circulating refrigeration module (41), a first annular circulation pipe (42), a second annular circulation pipe (43) and a warp cooling pipe (44); a plurality of the warp cooling pipes (44) are fixedly connected between the first annular circulation pipe (42) and the second annular circulation pipe (43); the circulating refrigeration module is fixedly connected to the protective cover (31); the first annular circulation pipe (42) and the second annular circulation pipe (43) are both connected to the circulating refrigeration module (41); and the warp cooling pipes (44) are distributed between the protective cover (31) and the rib plate (53).

3. A ventilation and heat dissipation cabinet based on computer network security according to claim 2, characterized in that: The rotating mechanism (5) further comprises a dehumidifying element (54). Three groups of the dehumidifying elements (54) are fixedly connected between two sealing cover plates (52). The dehumidifying elements (54) are located on a side of the mesh belt (61) away from the protective cover (31).

4. A ventilation and heat dissipation cabinet based on computer network security according to claim 3, characterized in that: The rotating mechanism (5) further comprises a rotating drum (56), a first transmission gear (57) and a radial plate (58); the rotating drum (56) is fixedly connected to the sealing cover plate (52); the rotating drum (56) is movably sleeved on the surface of the ventilation pipe (32); the first transmission gear (57) is fixedly connected to the rotating drum (56); the driving member (51) is transmission-connected to the first transmission gear (57); and the three radial plates (58) are fixedly connected between the two sealing cover plates (52).

5. A ventilation and heat dissipation cabinet based on computer network security according to claim 4, characterized in that: The ventilation housing (3) further comprises a speaker air outlet (33) and an air inlet (34); one end of the ventilation pipe (32) located in the cabinet housing (1) is provided with a speaker air outlet (33); the surface of the ventilation pipe (32) located in the protective cover (31) is provided with an air inlet (34); the three radial plates (58) are in sliding contact with the surface of the ventilation pipe (32); and the three air inlets (34) are symmetrically distributed about the center of the ventilation pipe (32).

6. A ventilation and heat dissipation cabinet based on computer network security according to claim 5, characterized in that: The dust prevention system (6) comprises a rack (62), a central tube (64) and a third transmission gear (66); the central tube (64) is fixedly connected to the mesh roller shell (63); the second transmission gear (65) and the two third transmission gears (66) are fixedly connected to the central tube (64); the central tube (64) is rotatably connected to the sealing cover plate (52); a rack (62) is provided on the surface of the mesh belt (61); the third transmission gear (66) is transmission-connected to the rack (62); and the other end of the branch tube (74) is rotatably connected to the central tube (64).

7. A ventilation and heat dissipation cabinet based on computer network security according to claim 6, characterized in that: A support plate (12) is fixedly connected to the top of the cabinet shell (1), the protective cover (31) is fixedly connected to the support plate (12), a through hole (59) is provided on the surface of the sealing cover plate (52) close to the side of the support plate (12), and a debris discharge port (13) is provided on the surface of the support plate (12).

8. A ventilation and heat dissipation cabinet based on computer network security according to claim 7, characterized in that: It also comprises a temperature sensor (8), wherein the temperature sensor (8) is fixedly connected to the inner wall of the cabinet shell (1).

9. A ventilation and heat dissipation cabinet based on computer network security according to claim 8, characterized in that: The number of the through holes (59) is three, and the through holes (59) correspond to the positions of the three dehumidification components (54). The number of the impurity discharge port (13) is one.

Images