Anti-electromagnetic interference network switch based on high-frequency filtering

Abstract

The present invention relates to the field of network switches. Provided is an anti-electromagnetic interference network switch based on high-frequency filtering. The anti-electromagnetic interference network switch comprises: a top cover fixedly mounted on an upper end face of a main body of the switch; a plurality of leg pads, each fixedly mounted on a lower end face of the main body of the switch; a plurality of network interfaces, each provided on an inner side of the main body of the switch; a partition plate fixedly connected to the inner side of the main body of the switch; and two cooling fans, each fixedly mounted on an inner side of the partition plate. The present invention solves the problem that, during use of existing anti-electromagnetic interference network switches, electronic components inside of the network switches generate a large amount of heat, and cooling fans inevitably causes dust from external air to enter the network switches while dissipating the heat from the network switches, which easily leads to dust attaching to the surfaces of the electronic components and affects the heat dissipation efficiency of the electronic components inside of the network switch, thereby improving the heat dissipation efficiency and increasing the service life.

Description

Anti-electromagnetic interference network switch based on high-frequency filtering TECHNICAL FIELD

[0001] The present application relates to the technical field of network switches, in particular to an anti-electromagnetic interference network switch based on high-frequency filtering. BACKGROUND

[0002] The network switch is a device for expanding the network, which can provide more connection ports in the sub-network to connect more computers. The network switch is usually provided with a plurality of network interfaces for inserting network cables of different devices. High-frequency filtering is a signal processing technology for eliminating or weakening components higher than a certain set frequency in the signal. The anti-electromagnetic interference network switch is a network device with high electromagnetic compatibility and anti-interference capability.

[0003] According to the anti-electromagnetic interference network switch disclosed in the application number: CN202022754491.2, the anti-electromagnetic interference network switch comprises a shell and a circuit mainboard arranged in the shell. Two U-shaped fixing blocks are symmetrically arranged on the left and right sides of the shell. A fixed frame is sleeved outside the shell. The fixed frame is located inside the four U-shaped fixing blocks. A shielding cover is fixedly arranged on the upper side of the fixed frame. The shell is arranged inside the shielding cover. Threaded holes corresponding in position are arranged in the side walls of the four U-shaped fixing blocks and the side wall of the fixed frame. Fixed bolts are arranged in the threaded holes. A plurality of network interfaces are arranged on the rear wall of the shell. A plurality of heat dissipation holes are arranged on the left and right sides of the shell. The network switch is covered and isolated by the shielding cover, which greatly reduces the interference of electromagnetic waves on the internal components of the network switch and ensures the stable operation of the network switch.

[0004] However, in the use process of the existing anti-electromagnetic interference network switch, the electronic components inside the anti-electromagnetic interference network switch will generate a large amount of heat. In order to prevent the anti-electromagnetic interference network switch from being damaged due to overheating, a cooling fan is usually installed inside the anti-electromagnetic interference network switch to cool the anti-electromagnetic interference network switch. However, when the cooling fan cools the anti-electromagnetic interference network switch, dust in the external air will inevitably enter the anti-electromagnetic interference network switch, which will easily cause the dust to adhere to the surface of the electronic components inside the anti-electromagnetic interference network switch, affecting the heat dissipation efficiency of the electronic components inside the network switch.

[0005] SUMMARY

[0006] Therefore, the present application provides an anti-electromagnetic interference network switch based on high-frequency filtering, which has the advantages of prolonging the service life and reducing economic losses.

[0007] The application provides a high-frequency filter-based anti-electromagnetic interference network switch, which specifically comprises a switch main body, a top cover, multiple feet, multiple network interfaces, a partition plate, multiple cooling fans, multiple cooling grooves, multiple first air inlets, a fixing plate, multiple sliding grooves, a protective shell, multiple second air inlets, multiple mounting sliding rods, multiple electromagnetic shielding pads, multiple fixing supports, a protection mechanism and a cooling mechanism; the top cover is fixedly installed on the upper end surface of the switch main body; the multiple feet are fixedly installed on the lower end surface of the switch main body; the multiple network interfaces are arranged on the inner side of the switch main body; the partition plate is fixedly connected to the inner side of the switch main body; the multiple cooling fans are fixedly installed on the inner side of the partition plate; the multiple cooling grooves are arranged on the outer side of the switch main body; the multiple first air inlets are arranged on the outer side of the switch main body; the fixing plate is fixedly connected to the outer side of the switch main body; the multiple sliding grooves are arranged on the outer side of the switch main body; the protective shell is slidably connected to the outer side of the switch main body; the multiple second air inlets are arranged on the inner side of the protective shell; the multiple mounting sliding rods are fixedly connected to the outer side of the protective shell and slidably connected to the inner side of the multiple sliding grooves; the multiple electromagnetic shielding pads are attached to the inner side of the switch main body; the multiple fixing supports are fixedly connected to the outer side of the switch main body; the protection mechanism is arranged on the inner side of the switch main body; and the cooling mechanism is arranged on the outer side of the switch main body.

[0008] Further, the protection mechanism comprises multiple protection hinged plates, and the multiple protection hinged plates are respectively hinged to the inner sides of the multiple cooling grooves.

[0009] Further, the protection mechanism further comprises multiple blocking hinged plates, multiple protection blocks and multiple compression protection springs, the multiple blocking hinged plates are respectively hinged to the inner sides of the multiple network interfaces, the hinged positions of the blocking hinged plates and the network interfaces are provided with torsional springs, the multiple protection blocks are slidably connected to the inner side of the switch main body, and the lower ends of the multiple compression protection springs are respectively fixedly connected to the upper end surfaces of the multiple protection blocks, and the upper ends of the multiple compression protection springs are fixedly connected to the inner side of the switch main body.

[0010] Further, the cooling mechanism comprises multiple fixing shafts, multiple plug-in shafts and a dustproof filter screen, the multiple fixing shafts are respectively rotatably connected to the inner sides of the multiple fixing supports, the multiple plug-in shafts are respectively plugged into the inner sides of the multiple fixing shafts and rotatably connected to the inner sides of the fixing supports, and the dustproof filter screen is wrapped on the outer sides of the multiple plug-in shafts.

[0011] Further, the heat dissipation mechanism further comprises a volute spring, an operating piece and a fixed block; the inner ring of the volute spring is fixedly connected to the outer side of the rear end fixed shaft, and the outer ring of the volute spring is fixedly connected to the lower end surface of the fixed support; the operating piece is fixedly connected to the lower end surface of the rear end fixed shaft; and the fixed block is fixedly connected to the outer side of the operating piece.

[0012] Further, the heat dissipation mechanism further comprises a fixed rod and a limiting hinged rod; the fixed rod is fixedly connected to the lower end surface of the fixed plate; and the limiting hinged rod is hingedly connected to the inner side of the lower end of the fixed rod.

[0013] Further, the heat dissipation mechanism further comprises a fixed wheel, a speed reduction wheel, a speed reduction spring and a speed reduction block; the fixed wheel is fixedly connected to the outer side of the front end fixed shaft; the speed reduction wheel is fixedly connected to the lower end surface of the front end fixed support; the speed reduction spring is fixedly connected to the inner side of the fixed wheel; and the speed reduction block is slidingly connected to the inner side of the fixed wheel and fixedly connected with the speed reduction spring.

[0014] Further, the heat dissipation mechanism further comprises a fixed shell, a rotating ratchet wheel, a limiting rod and a compression spring; the fixed shell is fixedly connected to the inner side of the switch main body; the rotating ratchet wheel is rotationally connected to the upper end surface of the front end fixed support; the limiting rod is slidingly connected to the inner side of the fixed shell; and one end of the compression spring is fixedly connected to the inner side of the fixed shell, and the other end of the compression spring is fixedly connected to the outer side of the limiting rod.

[0015] Further, the heat dissipation mechanism further comprises extrusion hinged plates, extrusion balls and connecting torsion springs; the extrusion hinged plates are provided in two, and the two extrusion hinged plates are respectively hingedly connected to the inner sides of the plurality of fixed supports; the extrusion balls are provided in two groups, and the two groups of extrusion balls are respectively rotationally connected to the inner sides of the two extrusion hinged plates; and the connecting torsion springs are provided in two groups, and one end of the two groups of connecting torsion springs is respectively fixedly connected to the outer sides of the two extrusion hinged plates, and the other end of the two groups of connecting torsion springs is respectively fixedly connected to the inner sides of the plurality of fixed supports.

[0016] Beneficial effects

[0017] The network interface is protected through the arrangement of the protection mechanism, and the arrangement of the blocking hinged plate and the protection block can prevent external residues from entering the network interface and affecting the use of the network interface, thereby prolonging the service life and reducing economic losses.

[0018] In addition, through the setting of the heat dissipation mechanism, heat dissipation of the switch body and replacement of the dustproof filter screen are realized, air entering the switch body is filtered through the dustproof filter screen, dust is prevented from adhering to the surface of the electronic components inside the switch body, heat dissipation efficiency is improved, service life is prolonged, when the dustproof filter screen is blocked, the limiting rod will slide into the switch body under the action of air pressure, so that the rotating ratchet loses the limiting, at this time the fixed shaft and the plug-in shaft will rotate under the action of the spiral spring, the dustproof filter screen is wound, the filter screen outside the first air inlet is replaced, air can smoothly enter the switch body to dissipate heat of the electronic components in the switch body, service life is prolonged, and economic loss is reduced.

[0019] In addition, through the setting of the heat dissipation mechanism, heat dissipation of the switch body and replacement of the dustproof filter screen are realized, air entering the switch body is filtered through the dustproof filter screen, dust is prevented from adhering to the surface of the electronic components inside the switch body, heat dissipation efficiency is improved, service life is prolonged, when the dustproof filter screen is blocked, the limiting rod will slide into the switch body under the action of air pressure, so that the rotating ratchet loses the limiting, at this time the fixed shaft and the plug-in shaft will rotate under the action of the spiral spring, the dustproof filter screen is wound, the filter screen outside the first air inlet is replaced, air can smoothly enter the switch body to dissipate heat of the electronic components in the switch body, service life is prolonged, and economic loss is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0022] In the drawings:

[0023] Fig. 1 is a structural schematic view of the main body of the embodiment one of the present application.

[0024] Fig. 2 is a structural schematic view of the network interface of the embodiment one of the present application.

[0025] Fig. 3 is a structural schematic view of the protective shell of the embodiment one of the present application.

[0026] Fig. 4 is a structural schematic view of the protective hinged plate of the embodiment one of the present application.

[0027] Fig. 5 is a structural schematic view of the heat dissipation groove of the embodiment one of the present application.

[0028] Fig. 6 is a structural schematic view of the partial enlargement of A in Fig. 5 of the embodiment one of the present application.

[0029] Fig. 7 is a structural schematic view of the fixed support of the embodiment two of the present application.

[0030] Fig. 8 is a structural schematic view of the extruded hinged plate of the embodiment two of the present application.

[0031] Fig. 9 is a structural schematic view of the spiral spring of the embodiment two of the present application.

[0032] Figure 10 is a structural schematic diagram of the deceleration wheel of the second embodiment of the present application.

[0033] Figure 11 is a structural schematic diagram of the limiting hinged rod of the second embodiment of the present application.

[0034] Figure 12 is a structural schematic diagram of the rotating ratchet of the second embodiment of the present application.

[0035] List of reference numerals

[0036] 1, switch main body; 2, top cover; 3, pad foot; 4, network interface; 5, partition; 6, cooling fan; 7, cooling groove; 8, first air inlet; 9, fixed plate; 10, sliding groove; 11, protective shell; 12, second air inlet; 13, installation sliding rod; 14, electromagnetic shielding pad; 15, fixed support; 16, protective hinged plate; 17, blocking hinged plate; 18, protective block; 19, compression protective spring; 20, fixed shaft; 21, plug-in shaft; 22, dust filter screen; 23, volute spring; 24, operating element; 25, fixed block; 26, fixed rod; 27, limiting hinged rod; 28, fixed wheel; 29, deceleration wheel; 30, deceleration spring; 31, deceleration block; 32, fixed shell; 33, rotating ratchet; 34, limiting rod; 35, compression spring; 36, extrusion hinged plate; 37, extrusion ball; 38, connecting torsion spring. DETAILED DESCRIPTION

[0037] Embodiment one:

[0038] Please refer to figures 1-6:

[0039] The application provides a high-frequency filter-based anti-electromagnetic interference network switch which comprises a switch main body 1, a top cover 2, feet 3, network interfaces 4, a partition 5, heat dissipation fans 6, heat dissipation grooves 7, first air inlets 8, a fixed plate 9, sliding grooves 10, a protective shell 11, second air inlets 12, mounting sliding rods 13, electromagnetic shielding pads 14, fixed supports 15 and a protection mechanism.

[0040] The protection mechanism comprises protection hinged plates 16, barrier hinged plates 17, protection blocks 18 and compression protection springs 19. The protection hinged plates 16 are hinged to the inner sides of the heat dissipation grooves 7. The barrier hinged plates 17 are hinged to the inner sides of the network interfaces 4, and torsional springs are arranged at the hinged positions of the barrier hinged plates 17 and the network interfaces 4. The protection blocks 18 are slidably connected to the inner side of the switch main body 1. The compression protection springs 19 are fixedly connected to the upper end surfaces of the protection blocks 18 and the inner side of the switch main body 1.

[0041] The specific use and role of the embodiment are as follows: when the heat dissipation fan 6 is started, the heat dissipation fan 6 will enter the air into the switch body 1 through the first air inlet hole 8 and the second air inlet hole 12, and the electronic components inside the switch body 1 are cooled, and then the air is discharged through the heat dissipation groove 7; when the connector needs to be inserted into the network interface 4, the connector will push away the blocking hinged plate 17 and the protection block 18 and then be inserted into the network interface 4, and the blocking hinged plate 17 and the protection block 18 can protect the network interface 4.

[0042] Embodiment two

[0043] On the basis of embodiment one, as shown in Figures 7-12, the heat dissipation mechanism comprises: a fixed shaft 20, an insertion shaft 21, a dust filter screen 22, a volute spring 23, an operating part 24, a fixed block 25, a fixed rod 26, a limiting hinged rod 27, a fixed wheel 28, a speed reduction wheel 29, a speed reduction spring 30, a speed reduction block 31, a fixed shell 32, a rotating ratchet wheel 33, a limiting rod 34, a compression spring 35, an extrusion hinged plate 36, an extrusion ball 37, and a connecting torsion spring 38; the heat dissipation mechanism is arranged on the outside of the switch body 1; the fixed shaft 20 is provided with two, and the two fixed shafts 20 are respectively rotationally connected to the inner sides of the plurality of fixed supports 15; the insertion shaft 21 is provided with two, and the two insertion shafts 21 are respectively inserted into the inner sides of the two fixed shafts 20 and rotationally connected to the inner sides of the fixed supports 15; the dust filter screen 22 is wrapped on the outer sides of the two insertion shafts 21; the volute spring 23 is fixedly connected at the inner side of the rear end fixed shaft 20, and the outer side of the volute spring 23 is fixedly connected to the lower end face of the fixed support 15; the operating part 24 is fixedly connected to the lower end face of the rear end fixed shaft 20; the fixed block 25 is fixedly connected to the outer side of the operating part 24; the fixed rod 26 is fixedly connected to the lower end face of the fixed plate 9; the limiting hinged rod 27 is hinged to the inner side of the lower end of the fixed rod 26; the fixed wheel 28 is fixedly connected to the outer side of the front end fixed shaft 20; the speed reduction wheel 29 is fixedly connected to the lower end face of the front end fixed support 15; the speed reduction spring 30 is fixedly connected to the inner side of the fixed wheel 28; the speed reduction block 31 is slidingly connected to the inner side of the fixed wheel 28, and the speed reduction block 31 is fixedly connected with the speed reduction spring 30; the fixed shell 32 is fixedly connected to the inner side of the switch body 1; the rotating ratchet wheel 33 is rotationally connected to the upper end face of the front end fixed support 15; the limiting rod 34 is slidingly connected to the inner side of the fixed shell 32; one end of the compression spring 35 is fixedly connected to the inner side of the fixed shell 32, and the other end of the compression spring 35 is fixedly connected to the outer side of the limiting rod 34; the extrusion hinged plate 36 is provided with two, and the two extrusion hinged plates 36 are respectively hinged to the inner sides of the plurality of fixed supports 15; the extrusion ball 37 is provided with two groups, and the two groups of extrusion balls 37 are respectively rotationally connected to the inner sides of the two extrusion hinged plates 36; the connecting torsion spring 38 is provided with two groups, and one end of the two groups of connecting torsion springs 38 is respectively fixedly connected to the outer sides of the two extrusion hinged plates 36, and the other end of the two groups of connecting torsion springs 38 is respectively fixedly connected to the inner sides of the plurality of fixed supports 15.

[0044] The specific use and role of the embodiment: after the two plug-in shafts 21 are pulled out, the dustproof filter screen 22 is placed inside the fixed support 15, at this time the plug-in shaft 21 is plugged inside the dustproof filter screen 22, the plug-in shaft 21 rotates with the dustproof filter screen 22, the extrusion hinge plate 36 is opened, the dustproof filter screen 22 in the middle is pressed, when the external air enters the switch main body 1 through the first air inlet hole 8 and the second air inlet hole 12, the air will be filtered through the dustproof filter screen 22 to remove the dust in the air, when the dustproof filter screen 22 in the middle is blocked by dust, the air pressure on the left side of the partition plate 5 in the switch main body 1 will decrease, at this time the limiting rod 34 will slide to the inside of the switch main body 1, the sliding of the limiting rod 34 will disengage the rotating ratchet 33, and the rotating ratchet 33 loses the limit, which will make the rear end fixed shaft 20 and the plug-in shaft 21 rotate under the action of the volute spring 23, the rotation of the fixed shaft 20 and the plug-in shaft 21 will drive the dustproof filter screen 22 to be wound, the dustproof filter screen 22 outside the first air inlet hole 8 is replaced, after the replacement is completed, the air pressure on the left side of the partition plate 5 in the switch main body 1 restores the limiting rod 34 which will be reset under the action of the compression spring 35, the rotating ratchet 33 is limited, the fixed shaft 20 and the plug-in shaft 21 stop rotating, and through the setting of the fixed wheel 28, the speed reduction wheel 29, the speed reduction spring 30 and the speed reduction block 31, the speed reduction block 31 will be pressed against the inside of the speed reduction wheel 29 under the action of the speed reduction spring 30, the rotating speed of the fixed shaft 20 and the plug-in shaft 21 is reduced.

Claims

1. A high-frequency filter-based anti-electromagnetic interference network switch, comprising a switch main body (1), a top cover (2), feet (3), network interfaces (4), partitions (5), heat dissipation fans (6), heat dissipation grooves (7), first air inlet holes (8), fixing plates (9), sliding grooves (10), protective shells (11), second air inlet holes (12), mounting sliding rods (13), electromagnetic shielding pads (14), fixing supports (15), a protection mechanism, and a heat dissipation mechanism; the top cover (2) is fixedly installed on the upper end face of the switch main body (1); the feet (3) are provided in plurality, and the plurality of feet (3) are fixedly installed on the lower end face of the switch main body (1); characterized in that: The network interface (4) is provided with a plurality of network interfaces (4), and the plurality of network interfaces (4) are all arranged on the inner side of the switch body (1); the partition plate (5) is fixedly connected to the inner side of the switch body (1); the heat dissipation fan (6) is provided with two heat dissipation fans (6), and the two heat dissipation fans (6) are both fixedly installed on the inner side of the partition plate (5); the heat dissipation groove (7) is provided with a plurality of heat dissipation grooves (7), and the plurality of heat dissipation grooves (7) are all arranged on the outer side of the switch body (1); the first air inlet hole (8) is provided with a plurality of first air inlet holes (8), and the plurality of first air inlet holes (8) are all arranged on the outer side of the switch body (1); the fixed plate (9) is fixedly connected to the outer side of the switch body (1); the sliding groove (10) is provided with two sliding grooves (10), and the two sliding grooves (10) are both arranged on the outer side of the switch body (1); the protective shell (11) is slidably connected to the outer side of the switch body (1); the second air inlet hole (12) is provided with a plurality of second air inlet holes (12), and the plurality of second air inlet holes (12) are all arranged on the inner side of the protective shell (11); the mounting sliding rod (13) is provided with two mounting sliding rods (13), and the two mounting sliding rods (13) are both fixedly connected to the outer side of the protective shell (11), and the two mounting sliding rods (13) are respectively slidably connected to the inner side of the two sliding grooves (10); the electromagnetic shielding pad (14) is provided with two electromagnetic shielding pads (14), and the two electromagnetic shielding pads (14) are attached to the inner side of the switch body (1); the fixed support (15) is provided with a plurality of fixed supports (15), and the plurality of fixed supports (15) are all fixedly connected to the outer side of the switch body (1); the protection mechanism is arranged on the inner side of the switch body (1); and the heat dissipation mechanism is arranged on the outer side of the switch body (1).

2. The anti-EMI network switch based on high frequency filtering of claim 1, wherein: The protection mechanism comprises: a protection hinged plate (16); the protection hinged plate (16) is provided with a plurality of protection hinged plates (16), and the plurality of protection hinged plates (16) are respectively hinged to the inner sides of the plurality of heat dissipation grooves (7).

3. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 2, wherein: The protection mechanism further comprises: a blocking hinged plate (17), a protection block (18) and a compression protection spring (19); the blocking hinged plate (17) is provided with a plurality of groups, and the plurality of groups of blocking hinged plates (17) are respectively hinged to the inner sides of the plurality of network interfaces (4); the hinged portion of the blocking hinged plate (17) and the network interface (4) is provided with a torsion spring; the protection block (18) is provided with a plurality of protection blocks (18), and the plurality of protection blocks (18) are all slidably connected to the inner side of the switch body (1); the compression protection spring (19) is provided with a plurality of compression protection springs (19), and the lower ends of the plurality of compression protection springs (19) are respectively fixedly connected to the upper end faces of the plurality of protection blocks (18), and the upper ends of the plurality of compression protection springs (19) are all fixedly connected to the inner side of the switch body (1).

4. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 1, wherein: The heat dissipation mechanism comprises: a fixed shaft (20), a plug-in shaft (21) and a dustproof filter screen (22); the fixed shaft (20) is provided with two fixed shafts (20), and the two fixed shafts (20) are respectively rotatably connected to the inner sides of the plurality of fixed supports (15); the plug-in shaft (21) is provided with two plug-in shafts (21), and the two plug-in shafts (21) are respectively inserted into the inner sides of the two fixed shafts (20), and the plug-in shaft (21) is rotatably connected to the inner side of the fixed support (15); and the dustproof filter screen (22) is wrapped on the outer sides of the two plug-in shafts (21).

5. The electromagnetic interference-resistant network switch based on high-frequency filtering as described in claim 4, characterized in that: The heat dissipation mechanism further comprises a volute spring (23), an operating member (24) and a fixed block (25); the inner ring of the volute spring (23) is fixedly connected to the outer side of the rear end fixed shaft (20), and the outer ring of the volute spring (23) is fixedly connected to the lower end surface of the fixed support (15); the operating member (24) is fixedly connected to the lower end surface of the rear end fixed shaft (20); and the fixed block (25) is fixedly connected to the outer side of the operating member (24).

6. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 5, wherein: The heat dissipation mechanism further comprises a fixed rod (26) and a limiting hinged rod (27); the fixed rod (26) is fixedly connected to the lower end surface of the fixed plate (9); and the limiting hinged rod (27) is hingedly connected to the inner side of the lower end of the fixed rod (26).

7. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 6, wherein: The heat dissipation mechanism further comprises a fixed wheel (28), a speed reduction wheel (29), a speed reduction spring (30) and a speed reduction block (31); the fixed wheel (28) is fixedly connected to the outer side of the front end fixed shaft (20); the speed reduction wheel (29) is fixedly connected to the lower end surface of the front end fixed support (15); the speed reduction spring (30) is fixedly connected to the inner side of the fixed wheel (28); and the speed reduction block (31) is slidingly connected to the inner side of the fixed wheel (28) and fixedly connected with the speed reduction spring (30).

8. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 7, wherein: The heat dissipation mechanism further comprises a fixed shell (32), a rotating ratchet wheel (33), a limiting rod (34) and a compression spring (35); the fixed shell (32) is fixedly connected to the inner side of the switch main body (1); the rotating ratchet wheel (33) is rotatably connected to the upper end surface of the front end fixed support (15); the limiting rod (34) is slidingly connected to the inner side of the fixed shell (32); and one end of the compression spring (35) is fixedly connected to the inner side of the fixed shell (32), and the other end of the compression spring (35) is fixedly connected to the outer side of the limiting rod (34).

9. The electromagnetic immunity resistant network switch based on high frequency filtering of claim 8, wherein: The heat dissipation mechanism further comprises two extrusion hinged plates (36), two extrusion balls (37) and two connecting torsional springs (38); the two extrusion hinged plates (36) are respectively hingedly connected to the inner sides of the multiple fixed supports (15); the two groups of extrusion balls (37) are respectively rotatably connected to the inner sides of the two extrusion hinged plates (36); and one end of each of the two groups of connecting torsional springs (38) is fixedly connected to the outer side of each of the two extrusion hinged plates (36), and the other end of each of the two groups of connecting torsional springs (38) is fixedly connected to the inner side of each of the multiple fixed supports (15).

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