Network switch device

Abstract

The invention relates to the technical field of switches, and provides a network switch device, which comprises a box body, a water absorption sponge body is arranged in the box body, an interception mechanism is arranged on the front side of the water absorption sponge body, a partition plate fixed in the box body is arranged on the rear side of the water absorption sponge body, and a motor is fixed on the top surface of the box body; when the intercepting mechanism needs to be cleaned, a motor works to drive a threaded rod to rotate, the threaded rod and a movable frame are in threaded action, meanwhile, the movable frame is driven to move downwards through sliding fit of a second sliding block and a box body, and in the process, a roller is driven to rotate through meshing of a gear and a rack; compared with the prior art, the cleaning device has the advantages that the problem that the cleaning effect on the filter screen is difficult to guarantee in the prior art is solved in a rolling cleaning mode.

Description

Technical Field

[0001] The present invention relates to the technical field of switches, and in particular to a network switch device. Background Art

[0002] During the use of the switch, since the internal circuit of the switch is relatively delicate, it needs to be protected more safely to extend the service life of the switch. Among them, the external environmental factors that have the greatest impact on the switch are humidity, dust and high temperature.

[0003] After searching, the announcement number CN113453090B discloses a dustproof and moisture-proof network communication switch device, including a box body, a first motor and a second motor. The bottom surface of the box body is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a collecting plate, and the surface of the collecting plate is provided with a groove; the back of the box body is hinged with a rear box cover, the surface of the rear box cover is fixedly connected with a first motor, a rotating shaft is installed inside the first motor, one end of the rotating shaft passes through the rear box cover and is fixedly connected with a fan blade. The switch device can perform dust-proof and moisture-proof treatment on the inside of the switch, and can collect the cleaned water vapor and dust externally to extend the service life of the device, and can prompt the loosening of the connecting wire of the switch to reduce the intensity of manual labor.

[0004] However, the above switch device still has the following problems: the above switch device cleans the filter by driving the cleaning brush to move vertically through a motor. Relatively speaking, this cleaning method is difficult to ensure the cleaning effect of the filter, which makes the cleaning cycle shorter and requires frequent cleaning, otherwise it will affect the heat dissipation capacity inside the switch device. Summary of the invention

[0005] The present invention provides a network switch device, which solves the problem in the prior art that it is difficult to ensure the cleaning effect of the filter.

[0006] The technical solution of the present invention is as follows: a network switch device comprises a box body, a water-absorbing sponge body is arranged in the box body, an interception mechanism is arranged on the front side of the water-absorbing sponge body, a partition fixed in the box body is arranged on the rear side of the water-absorbing sponge body, a motor is fixed on the top surface of the box body, a threaded rod vertically penetrating the box body and rotatably connected to the box body is fixed on the output end of the motor, racks arranged vertically are fixed on both sides of the box body, and a roller brush is arranged outside the threaded rod to clean the surface of the interception mechanism from top to bottom under the drive of the threaded rod and in cooperation with the racks on both sides. Mechanism, the roller brush mechanism is provided with a pulling mechanism which hooks the intercepting mechanism when it descends to the bottom of the box body, the motor drives the roller brush mechanism to move upward, and the pulling mechanism drives the intercepting mechanism to compress the water-absorbing sponge body, both sides of the water-absorbing sponge body are provided with air pressure components which blow air to the surface of the intercepting mechanism under the compression of the intercepting mechanism, a pressure rod which releases the pulling mechanism when the roller brush mechanism moves upward to the top of the box body is fixed on the inner side of the box body, baffles which stop the intercepting mechanism are fixed on the top and bottom inner walls of the box body, and a collecting groove for collecting dirt is embedded in the bottom of the box body.

[0007] Preferably, the interception mechanism includes a skeleton component and a plurality of pairs of filter components distributed on the skeleton component.

[0008] Preferably, the skeleton assembly includes a plurality of pairs of first and second frame rods crosswise arranged, the middle parts of the first and second frame rods are hinged by a first pin shaft, the ends of the first and second frame rods are hinged by a second pin shaft, the ends of the first and second frame rods at the upper ends are hinged with a positioning rod fixed to the partition, a fixing plate is fixed outside the first pin shaft at the lower end, a pressure plate under the water-absorbing sponge body is fixed to the bottom of the fixing plate, guide rods penetrate both sides of the water-absorbing sponge body, the pressure plate is slidably connected to the guide rods, the two ends of the guide rods are fixedly connected to the inner wall of the box body, and a hanging rod on the travel path of the pulling mechanism is fixed to the outer side of the fixing plate.

[0009] Preferably, the filter assembly includes a first fixed frame and a second fixed frame, the first fixed frame and the second fixed frame are both in the shape of a right-angled triangle that is symmetrical up and down, the right-angled ends of the first fixed frame and the second fixed frame are hinged by a hinge, and the other two ends of the first fixed frame and the second fixed frame are elastically connected to the skeleton assembly by rubber bands, and stainless steel meshes are fixed on the inner sides of the first fixed frame and the second fixed frame.

[0010] Preferably, the pneumatic assembly includes an airbag, one side of which is fixed to the inner wall of the box, and the other side of which is fixed with a side panel, both ends of which are fixed with a first slider slidably connected to the box, and the side panel is provided with a plurality of air nozzles connected to the inner cavity of the airbag.

[0011] Preferably, the first fixed frame and the second fixed frame are both hollow structures, the air nozzle on the side panel is connected to the first fixed frame and the second fixed frame one by one through a hose, and the inner side surfaces of the first fixed frame and the second fixed frame are provided with a plurality of air holes facing the stainless steel mesh.

[0012] Preferably, the roller brush mechanism includes a movable frame, which is threadedly connected to the threaded rod, and a roller is rotatably connected to the inner side of the movable frame, bristles are fixed to the surface of the roller, gears meshing with the rack are fixed on both sides of the roller, and the two ends of the roller are rotatably connected to a second slider slidably connected to the box.

[0013] Preferably, the pulling mechanism comprises a bracket, the bracket is fixed at the middle position of the roller, a hook is hinged at the bottom of the bracket and a torsion spring is clamped at the hinge.

[0014] Preferably, a first inclined surface is provided at the bottom of the pressure rod, a second inclined surface corresponding to the first inclined surface is provided at the top of the hook, a third inclined surface corresponding to the hanging rod is provided at the bottom of the hook, and a groove for supporting the hanging rod is provided above the third inclined surface.

[0015] Preferably, the partition is provided with a plurality of evenly distributed air holes.

[0016] The beneficial effects of the present invention are: When the interception mechanism needs to be cleaned, the present invention can drive the threaded rod to rotate through the operation of the motor, and the thread of the threaded rod and the moving frame can act, and the moving frame can be driven downward by the sliding cooperation between the second slider and the box body. In this process, the roller is driven to rotate through the meshing of the gear and the rack, and then the dust on the surface of the stainless steel net on the interception mechanism is rolled by the bristles during the roller descent. Compared with the prior art, the present invention solves the problem that it is difficult to ensure the cleaning effect of the filter screen in the prior art by rolling cleaning. When the mobile frame of the present invention descends to the bottom of the box body, the third inclined surface of the hook is pressed by the hanging rod to make the hook turn outward to overcome the elastic force of the torsion spring until the hanging rod is stuck in the groove of the hook, and the motor starts to work in reverse, thereby driving the mobile frame to move upward. In this process, the hook hooks the hanging rod and drags the pressing plate to move upward under the guidance of the guide rod, thereby squeezing the water-absorbing sponge body. The water squeezed out of the water-absorbing sponge body can wash the stainless steel nets in the first fixed frame and the second fixed frame. In the process of the mobile frame moving upward, the fixed plate is fixed outside the first pin shaft at the lower position, and the two positioning rods at the upper position are fixed to the partition plate. When the fixed plate moves upward, the first pin shaft can be pushed to reduce the distance between the upper and lower first pin shafts, that is, each first frame rod and the second frame rod are contracted synchronously, and when the first frame rod and the second frame rod are contracted, the first fixed frame and the second fixed frame can be compressed, so that the first fixed frame and the second fixed frame are turned outward under the hinged action of the hinge and the expansion effect of the water-absorbing sponge body, so as to shake off the sewage on the stainless steel net; In the process of the mobile frame moving upward, the first frame rods and the second frame rods are synchronously contracted to make the second pin shaft expand outward, thereby pushing the side plate. The side plate compresses the airbag under the sliding guide of the first slider and the box body, so that the air in the airbag is guided to the first fixed frame and the second fixed frame through the air nozzle, and then sprayed out from the air holes on the first fixed frame and the second fixed frame, so as to blow off the dirt on the surface of the stainless steel mesh and collect it in the collection groove at the bottom of the box body. When the movable frame of the present invention moves up to the top of the box body, the second inclined surface of the hook can overcome the elastic force of the torsion spring and flip outward again under the pressure of the first inclined surface at the bottom of the pressure rod, and then the hanging rod is released through the hook, and the pressure plate slides downward under the elastic force recovery of the water-absorbing sponge until the fixed plate conflicts with the baffle at the bottom, and the device can automatically return to its initial state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 A schematic diagram of the structure of a network switch device proposed by the present invention; Figure 2 This is a schematic diagram of the distribution of the interception mechanism, partition and water-absorbing sponge body proposed in the present invention; Figure 3 This is a schematic diagram of the skeleton assembly structure proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the filter assembly proposed by the present invention; Figure 5 This is a schematic structural diagram of the filter assembly proposed by the present invention from another perspective; Figure 6 This is a schematic diagram of the structure of the air pressure component proposed by the present invention; Figure 7 This is a schematic diagram of the structure of the roller brush mechanism and the pulling mechanism proposed by the present invention; Figure 8 This is a structural schematic diagram of the roller brush mechanism and the pulling mechanism proposed by the present invention from another perspective; Fig. 9 This is a side view distribution diagram of the hook, pressure rod and hanging rod proposed by the present invention; In the figure: 1, box body; 2, interception mechanism; 21, skeleton assembly; 211, first frame rod; 212, second frame rod; 213, first pin shaft; 214, second pin shaft; 215, fixing plate; 216, pressing plate; 217, hanging rod; 218, positioning rod; 22, filter assembly; 221, first fixing frame; 222, second fixing frame; 223, hinge; 224, rubber band; 225, air hole; 226, stainless steel mesh; 3, partition; 31, air hole; 4, water-absorbing sponge; 41. Guide rod; 5. Motor; 6. Threaded rod; 7. Roller brush mechanism; 71. Moving frame; 72. Roller; 73. Bristles; 74. Gear; 75. Second slider; 8. Pulling mechanism; 81. Bracket; 82. Hook; 821. Second inclined plane; 822. Third inclined plane; 823. Groove; 9. Pneumatic assembly; 91. Air bag; 92. Side panel; 93. First slider; 94. Air nozzle; 10. Rack; 11. Pressure rod; 111. First inclined plane; 12. Baffle; 13. Collecting tank. DETAILED DESCRIPTION

[0019] The following will be combined with 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.

[0020] See also Figure 1 and Figure 2The present invention provides a technical solution: a network switch device, including a box body 1, a water-absorbing sponge body 4 is arranged in the box body 1, an interception mechanism 2 is arranged on the front side of the water-absorbing sponge body 4, a partition 3 fixed in the box body 1 is arranged on the rear side of the water-absorbing sponge body 4, a motor 5 is fixed on the top surface of the box body 1, a threaded rod 6 that vertically penetrates the box body 1 and is rotatably connected to the box body 1 is fixed on the output end of the motor 5, vertically arranged racks 10 are fixed on both sides of the box body 1, a roller brush mechanism 7 is arranged outside the threaded rod 6, which is driven by the threaded rod 6 and cooperates with the racks 10 on both sides to clean the surface of the interception mechanism 2 from top to bottom, and a pulling mechanism 8 is arranged on the roller brush mechanism 7 to hook the interception mechanism 2 when it descends to the bottom of the box body 1, and the electric When the machine 5 drives the roller brush mechanism 7 upward, the pulling mechanism 8 drives the intercepting mechanism 2 to compress the water-absorbing sponge 4. Air pressure components 9 are arranged on both sides of the water-absorbing sponge 4 for blowing air to the surface of the intercepting mechanism 2 under the compression of the intercepting mechanism 2. A pressure rod 11 is fixed on the inner side of the box body 1 for releasing the pulling mechanism 8 when the roller brush mechanism 7 ascends to the top of the box body 1. Baffles 12 for stopping the intercepting mechanism 2 are fixed on the top and bottom inner walls of the box body 1. The upper and lower baffles 12 are also used to cover the upper and lower empty parts of the pulling mechanism 8. A collecting groove 13 for collecting dirt is embedded at the bottom of the box body 1. It should be noted that a switch for network connection and a heat dissipation mechanism for dissipating heat from the switch are also arranged in the box body 1 (not shown in the figure).

[0021] See also Figure 2 and Figure 3 The interception mechanism 2 includes a skeleton component 21, and a plurality of pairs of filter screen components 22 distributed on the skeleton component 21, wherein the skeleton component 21 includes a plurality of pairs of first frame rods 211 and second frame rods 212 arranged crosswise, the middle of the first frame rod 211 and the second frame rod 212 are hinged by a first pin shaft 213, the ends of the first frame rod 211 and the second frame rod 212 are hinged by a second pin shaft 214, and the ends of the first frame rod 211 and the second frame rod 212 at the upper end are hinged by a fixed A positioning rod 218 is formed on the partition 3, and a fixing plate 215 is fixed outside the first pin shaft 213 at the lower end. A pressing plate 216 located below the water-absorbing sponge 4 is fixed at the bottom of the fixing plate 215. Guide rods 41 are passed through both sides of the water-absorbing sponge 4. The pressing plate 216 is slidably connected to the guide rods 41. Both ends of the guide rods 41 are fixedly connected to the inner wall of the box body 1. A hanging rod 217 located on the travel path of the pulling mechanism 8 is fixed outside the fixing plate 215. In the initial state, the interception mechanism 2 is as shown in FIG. Figure 1 and Figure 2 In the state shown, the dust in the air can be intercepted by the stainless steel net 226 unfolded on the interception mechanism 2, and the moisture in the air can be intercepted by the water-absorbing sponge 4.

[0022] See also Figure 2 , Figure 4 and Figure 5The filter assembly 22 includes a first fixed frame 221 and a second fixed frame 222. The first fixed frame 221 and the second fixed frame 222 are both symmetrical right-angled triangles. The right-angle ends of the first fixed frame 221 and the second fixed frame 222 are hinged by hinges 223. The other two ends of the first fixed frame 221 and the second fixed frame 222 are elastically connected to the skeleton assembly 21 by rubber bands 224. The inner sides of the first fixed frame 221 and the second fixed frame 222 are fixed with stainless steel meshes 226. When the pulling mechanism 8 hooks the filter assembly 22, the movable frame 71 moves upward and the hook 82 hooks the hanging rod 217 to drag the pressing plate 216 to move upward under the guiding effect of the guide rod 41, thereby squeezing the water-absorbing sponge 4. By squeezing The water flowing out of the water-absorbing sponge 4 can rinse the stainless steel mesh 226 in the first fixed frame 221 and the second fixed frame 222. At the same time, since the fixed plate 215 is fixed outside the first pin shaft 213 at a lower position, and the two positioning rods 218 at a higher position are fixed on the partition 3, when the fixed plate 215 moves upward, it can push the first pin shaft 213, so that the distance between the upper and lower first pin shafts 213 is reduced, that is, each first frame rod 211 and the second frame rod 212 shrink synchronously, and when the first frame rod 211 and the second frame rod 212 shrink, they can compress the first fixed frame 221 and the second fixed frame 222, so that the first fixed frame 221 and the second fixed frame 222 are turned outward under the hinged action of the hinge 223 and the expansion effect of the squeezing of the water-absorbing sponge 4.

[0023] See also Figure 6 The pneumatic assembly 9 includes an airbag 91, one side of the airbag 91 is fixed to the inner wall of the box body 1, and the other side of the airbag 91 is fixed with a side plate 92. Both ends of the side plate 92 are fixed with a first slider 93 slidably connected to the box body 1, and the side plate 92 is provided with a plurality of air nozzles 94 that communicate with the inner cavity of the airbag 91.

[0024] In a preferred embodiment, the first fixed frame 221 and the second fixed frame 222 are both hollow structures, and the air nozzle 94 on the side plate 92 is connected to the first fixed frame 221 and the second fixed frame 222 one by one through a hose (the hose is not shown in the figure), and the inner side surfaces of the first fixed frame 221 and the second fixed frame 222 are provided with a plurality of air holes 225 facing the stainless steel mesh 226. When the pulling mechanism 8 hooks the filter assembly 22, during the upward movement of the mobile frame 71, each of the first frame rods 211 and the second frame rods 211 are connected to the first frame rods 211 and the second frame rods 211. The two frame rods 212 shrink synchronously to expand the second pin shaft 214 outward, thereby pushing the side plate 92. The side plate 92 compresses the airbag 91 under the sliding guidance of the first slider 93 and the box body 1, so that the air in the airbag 91 is guided to the first fixed frame 221 and the second fixed frame 222 through the air nozzle 94, and then sprayed out from the air holes 225 on the first fixed frame 221 and the second fixed frame 222, so as to blow off the dirt on the surface of the stainless steel mesh 226 and collect it in the collection groove 13 at the bottom of the box body 1.

[0025] See also Figure 7 and Figure 8 The roller brush mechanism 7 includes a moving frame 71, which is threadedly connected to the threaded rod 6. A roller 72 is rotatably connected to the inner side of the moving frame 71. Brush bristles 73 are fixed to the surface of the roller 72. Gears 74 meshing with the rack 10 are fixed on both sides of the roller 72. Second sliders 75 slidably connected to the box body 1 are rotatably connected to the two ends of the roller 72. When the motor 5 drives the threaded rod 6 to rotate, the threaded action of the threaded rod 6 and the moving frame 71 can be used. At the same time, the sliding cooperation between the second slider 75 and the box body 1 drives the moving frame 71 to move downward. In this process, the roller 72 is driven to rotate by the meshing of the gear 74 and the rack 10, and then the bristles 73 roll the dust on the surface of the stainless steel mesh 226 on the intercepting mechanism 2 during the descent of the roller 72.

[0026] See also Figure 1 , Figure 2 , Figure 8 and Fig. 9 The pulling mechanism 8 includes a bracket 81, which is fixed to the middle position of the roller 72. A hook 82 is hinged at the bottom of the bracket 81 and a torsion spring is clamped at the hinge. A first inclined surface 111 is provided at the bottom of the pressure rod 11, and a second inclined surface 821 corresponding to the first inclined surface 111 is provided at the top of the hook 82. A third inclined surface 822 corresponding to the hanging rod 217 is provided at the bottom of the hook 82. A groove 823 for supporting the hanging rod 217 is provided above the third inclined surface 822. When the mobile frame 71 descends to the bottom of the box body 1, the third inclined surface 822 of the hook 82 is pressed by the hanging rod 217 to make the hook 82 overcome the elastic force of the torsion spring and flip outward until When the hanging rod 217 is stuck in the groove 823 of the hook 82, the motor 5 starts to work in reverse, thereby driving the movable frame 71 to move upward. During this process, the hook 82 hooks the hanging rod 217 and drags the pressure plate 216 to move upward under the guidance of the guide rod 41. When the movable frame 71 goes up to the top of the box body 1, the second inclined surface 821 of the hook 82 is squeezed by the first inclined surface 111 at the bottom of the pressure rod 11 and can overcome the elastic force of the torsion spring to flip outward again, and then the hanging rod 217 is released through the hook 82, and the pressure plate 216 slides downward under the recovery of the elastic force of the absorbent sponge 4 until the fixed plate 215 conflicts with the baffle 12 at the bottom.

[0027] In a preferred embodiment, a plurality of evenly distributed air holes 31 are provided on the partition 3 , and the partition 3 limits the water-absorbing sponge 4 . Meanwhile, the air holes 31 on the partition 3 are used to ventilate the switch in the box 1 .

[0028] The working principle and use process of the present invention are as follows: In the initial state, the interception mechanism 2 is as follows: Figure 1 and Figure 2In the state shown, the dust in the air can be intercepted by the stainless steel net 226 unfolded on the interception mechanism 2, and the moisture in the air can be intercepted by the water-absorbing sponge 4. When cleaning is needed, the motor 5 can drive the threaded rod 6 to rotate, and the threaded rod 6 and the movable frame 71 are acted on, and the movable frame 71 is driven downward by the sliding cooperation between the second slider 75 and the box body 1. In this process, the roller 72 is driven to rotate by the meshing of the gear 74 and the rack 10, and then the bristles 73 roll and brush the dust on the surface of the stainless steel net 226 on the interception mechanism 2 during the descending process of the roller 72; When the movable frame 71 descends to the bottom of the box body 1, the third inclined surface 822 of the hook 82 is pressed by the hanging rod 217 to make the hook 82 turn outward to overcome the elastic force of the torsion spring until the hanging rod 217 is stuck in the groove 823 of the hook 82, and the motor 5 starts to work in reverse, thereby driving the movable frame 71 to move upward. In this process, the hook 82 hooks the hanging rod 217 and drags the pressing plate 216 to move upward under the guidance of the guide rod 41, thereby squeezing the water-absorbing sponge 4. The water squeezed out of the water-absorbing sponge 4 can wash the stainless steel mesh 226 in the first fixed frame 221 and the second fixed frame 222. At the same time, due to the fixed plate 215 The two positioning rods 218 are fixed to the outside of the first pin shaft 213 at the lower position, and the two positioning rods 218 at the upper position are fixed to the partition plate 3. When the fixing plate 215 moves upward, the first pin shaft 213 can be pushed to reduce the distance between the upper and lower first pin shafts 213, that is, each first frame rod 211 and the second frame rod 212 are contracted synchronously, and when the first frame rod 211 and the second frame rod 212 are contracted, the first fixed frame 221 and the second fixed frame 222 can be compressed, so that the first fixed frame 221 and the second fixed frame 222 are hinged by the hinge 223 and the expansion effect of the water-absorbing sponge 4 is squeezed and turned outward, so as to shake off the sewage on the stainless steel net 226; In the above process, each of the first rack rods 211 and the second rack rods 212 are synchronously contracted to expand the second pin shaft 214 outward, thereby pushing the side plate 92. The side plate 92 compresses the airbag 91 under the sliding guide of the first slider 93 and the box body 1, so that the air in the airbag 91 is guided to each of the first fixed frame 221 and the second fixed frame 222 through the air nozzle 94, and then sprayed out from the air holes 225 on the first fixed frame 221 and the second fixed frame 222, so as to blow off the dirt on the surface of the stainless steel mesh 226 and collect it in the collection tank 13 at the bottom of the box body 1; When the movable frame 71 moves up to the top of the box body 1, the second inclined surface 821 of the hook 82 can overcome the elastic force of the torsion spring and flip outward again under the pressure of the first inclined surface 111 at the bottom of the pressure rod 11, and then release the hanging rod 217 through the hook 82. Under the recovery of the elastic force of the water-absorbing sponge 4, the pressure plate 216 slides downward until the fixed plate 215 conflicts with the baffle 12 at the bottom. At this time, the device can automatically return to its initial state.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 network switch device, comprising a box (1), characterized in that: A water-absorbing sponge (4) is arranged in the box body (1), an interception mechanism (2) is arranged on the front side of the water-absorbing sponge (4), a partition (3) fixed in the box body (1) is arranged on the rear side of the water-absorbing sponge (4), a motor (5) is fixed on the top surface of the box body (1), a threaded rod (6) vertically penetrating the box body (1) and rotatably connected to the box body (1) is fixed at the output end of the motor (5), vertically arranged racks (10) are fixed on both sides of the box body (1), a rolling brush mechanism (7) is arranged outside the threaded rod (6) and is driven by the threaded rod (6) and cooperates with the racks (10) on both sides to clean the surface of the interception mechanism (2) from top to bottom, and a roller brush mechanism (7) is arranged on the roller brush mechanism (7) at the bottom. When the roller brush mechanism (7) reaches the bottom of the box (1), it hooks the pulling mechanism (8) of the interception mechanism (2). When the motor (5) drives the roller brush mechanism (7) upward, the pulling mechanism (8) drives the interception mechanism (2) to compress the water-absorbing sponge (4). Both sides of the water-absorbing sponge (4) are provided with air pressure components (9) for blowing air on the surface of the interception mechanism (2) under the compression of the interception mechanism (2). A pressure rod (11) is fixed on the inner side of the box (1) for releasing the pulling mechanism (8) when the roller brush mechanism (7) moves upward to the top of the box (1). Baffles (12) for stopping the interception mechanism (2) are fixed on the top and bottom inner walls of the box (1). A collecting groove (13) for collecting dirt is embedded at the bottom of the box (1).

2. A network switch device according to claim 1, characterized in that: The interception mechanism (2) comprises a skeleton component (21), and a plurality of pairs of filter screen components (22) distributed on the skeleton component (21).

3. A network switch device according to claim 2, characterized in that: The skeleton assembly (21) comprises a plurality of pairs of first frame rods (211) and second frame rods (212) arranged crosswise, wherein the middle portions of the first frame rods (211) and the second frame rods (212) are hingedly connected via a first pin shaft (213), and the ends of the first frame rods (211) and the second frame rods (212) are hingedly connected via a second pin shaft (214), and the ends of the first frame rods (211) and the second frame rods (212) at the upper ends are hingedly connected with positioning rods (218) fixed to the partition plate (3), and the ends of the first frame rods (211) and the second frame rods (212) at the lower ends are hingedly connected with positioning rods (218) fixed to the partition plate (3). A fixing plate (215) is fixed outside the first pin shaft (213); a pressing plate (216) located below the water-absorbing sponge (4) is fixed at the bottom of the fixing plate (215); guide rods (41) penetrate through both sides of the water-absorbing sponge (4); the pressing plate (216) is slidably connected to the guide rods (41); both ends of the guide rods (41) are fixedly connected to the inner wall of the box body (1); and a hanging rod (217) located on the travel path of the pulling mechanism (8) is fixed outside the fixing plate (215).

4. A network switch device according to claim 2, characterized in that: The filter assembly (22) comprises a first fixing frame (221) and a second fixing frame (222); the first fixing frame (221) and the second fixing frame (222) are both in the shape of a right-angled triangle that is symmetrical up and down; one right-angle end of the first fixing frame (221) and the second fixing frame (222) are hingedly connected via a hinge (223); the other two ends of the first fixing frame (221) and the second fixing frame (222) are elastically connected to the skeleton assembly (21) via rubber bands (224); and a stainless steel mesh (226) is fixed to the inner side of each of the first fixing frame (221) and the second fixing frame (222).

5. A network switch device according to claim 4, characterized in that: The air pressure assembly (9) comprises an air bag (91), one side of the air bag (91) is fixed to the inner wall of the box body (1), the other side of the air bag (91) is fixed with a side plate (92), both ends of the side plate (92) are fixed with a first sliding block (93) slidably connected to the box body (1), and the side plate (92) is provided with a plurality of air nozzles (94) which are in communication with the inner cavity of the air bag (91).

6. A network switch device according to claim 5, characterized in that: The first fixing frame (221) and the second fixing frame (222) are both hollow structures, the air nozzle (94) on the side plate (92) is connected to the first fixing frame (221) and the second fixing frame (222) one by one through a hose, and the inner side surfaces of the first fixing frame (221) and the second fixing frame (222) are provided with a plurality of air holes (225) facing the stainless steel mesh (226).

7. A network switch device according to claim 1, characterized in that: The roller brush mechanism (7) comprises a movable frame (71), the movable frame (71) being threadedly connected to the threaded rod (6), a roller (72) being rotatably connected to the inner side of the movable frame (71), bristles (73) being fixed to the surface of the roller (72), gears (74) meshing with the rack (10) being fixed to both sides of the roller (72), and second sliders (75) slidably connected to the box (1) being rotatably connected to both ends of the roller (72).

8. A network switch device according to claim 7, characterized in that: The pulling mechanism (8) comprises a bracket (81), the bracket (81) is fixed to the middle position of the roller (72), a hook (82) is hinged at the bottom of the bracket (81), and a torsion spring is clamped at the hinge.

9. A network switch device according to claim 8, characterized in that: A first inclined surface (111) is provided at the bottom of the pressure rod (11), a second inclined surface (821) corresponding to the first inclined surface (111) is provided at the top of the hook (82), a third inclined surface (822) corresponding to the hanging rod (217) is provided at the bottom of the hook (82), and a groove (823) for supporting the hanging rod (217) is provided above the third inclined surface (822).

10. The network switch device according to claim 1, characterized in that: The partition plate (3) is provided with a plurality of evenly distributed air holes (31).

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