CN216357061U - STB dust keeper for network security - Google Patents

Abstract

The application provides a set top box dust keeper for network security belongs to dustproof facilities technical field. The dustproof device of the set top box for network security comprises an installation fixing component and a heat dissipation dustproof component, wherein the installation fixing component comprises an installation box, a set top box body, a clamping piece and leveling support legs, the heat-dissipation dustproof assembly comprises a heat-dissipation fan, an enclosing frame, a dustproof plate, a hanging frame, a movable seat and a brush, the set-top box body is clamped and fixed by the four clamping pieces to complete the installation of the set-top box body, the cooling fan sucks external cold air to rapidly cool and radiate the set top box body, and the dustproof plate and the dust blocking net are utilized to filter the external air entering the installation box, so that the dustproof performance of the device is effectively improved, the guide driving piece drives the movable seat and the brush on the movable seat to brush off dust attached to the bottom of the dust guard in a sliding manner, so that a heat dissipation channel is prevented from being blocked, and the set top box body is prevented from being burnt due to poor heat dissipation effect.

Description

STB dust keeper for network security

Technical Field

The application relates to the field of dustproof equipment, in particular to a set top box dustproof device for network security.

Background

In network television, a network set-top box is a common communication device, which is a device for connecting a television set with an external signal source, and can convert a compressed digital signal into television content and display the television content on the television set, wherein the signal can come from a cable, a satellite antenna, a broadband network and terrestrial broadcasting.

In daily life, the STB is directly placed on TV rack usually, and dustproof performance is relatively poor, and after long-time the use, inside outside dust enters into the STB from the louvre easily, the dust covers on the inside components and parts of STB, causes the STB easily and burns out because of the heat dissipation is not good, and the installation of STB is inconvenient, prevents simultaneously that the falling performance is not good, damages because of dropping easily.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, this application provides a STB dust keeper for network security, aims at improving that current STB dustproof performance is relatively poor, and the dust enters into the inside back of STB, leads to the components and parts in the STB easily to burn out because of the heat dissipation is not good to and the installation is inconvenient, prevents falling the not good problem of performance.

The application provides a set top box dustproof device for network security, which comprises an installation fixing assembly and a heat dissipation dustproof assembly.

The fixed subassembly of installation includes install bin, STB body, holder and leveling landing leg, two liang of relative settings of holder are two sets of, two sets of the holder symmetry slide set up in the install bin inside wall, STB body centre gripping is fixed in two sets of between the holder, all open the vent on install bin roof and the diapire, the install bin roof the vent inlays and is equipped with the dust blocking net, the leveling landing leg install in the four corners of install bin bottom portion.

The dustproof subassembly of heat dissipation includes cooling blower, encloses frame, dust guard, hangs frame, sliding seat and brush, enclose the frame install in the install bin bottom, cooling blower install in enclose in the frame, cooling blower is just right the install bin diapire the vent sets up, the dust guard lid is located enclose the frame bottom, hang the frame and slide through connecting the lug and hang and locate enclose the below of frame, the sliding seat pass through the direction driving piece activity set up in connect between the lug, the brush slides and inserts and establish the sliding seat top, the brush contradict in the basal surface of dust guard.

In the scheme, the set top box body is clamped and fixed by four clamping pieces, the set top box body is quickly installed, the shock absorption effect on the set top box body is realized, the set top box body is prevented from falling and being damaged, when the set top box body is used, the heat dissipation fan sucks external cold air into the enclosure frame, then the heat dissipation channel formed by the upper vent and the lower vent quickly cools the set top box body by air cooling, the external air entering the installation box is filtered by the dust guard and the dust blocking net, the dustproof performance of the device is effectively improved, dust can be prevented from entering the set top box body, the dust attached to the bottom of the dust guard is slidingly brushed by the guide driving piece driving the movable seat and the hairbrush on the movable seat, and the dust guard can be periodically detached and cleaned or replaced by the detachable structure at the bottom of the dust guard and the enclosure frame, the blockage of the heat dissipation channel is avoided, so that the heat dissipation effect of the set top box body is poor and the set top box body is burnt, and the normal use of the set top box body is influenced.

Furthermore, enclose the frame bottom and open and be equipped with the inlay groove, the inlay groove is the ring form, enclose the frame both sides and all seted up the track groove, enclose the frame with the junction of install bin has set firmly the strengthening rib.

Furthermore, the dust guard includes fixed frame and dust screen, the dust screen is the annular form, the dust screen is fixed to be inlayed and is located in the fixed frame, fixed frame passes through the set bolt lid and locates in the inlay groove.

In the above scheme, through positioning bolt with fixed frame detachable installation in the inlay groove, be convenient for dismantle, wash the dust guard, utilize the dust screen to carry out filtration treatment to the outside air that gets into in the install bin through enclosing the frame bottom, prevent that the dust from getting into inside the install bin.

Furthermore, four connecting lifting lugs are symmetrically arranged, the bottom ends of the connecting lifting lugs are fixedly connected with the end portions of the hanging frame, pulleys are rotatably arranged at the top ends of the connecting lifting lugs, the pulleys are slidably inserted into the rail grooves, and one of the connecting lifting lugs is tightly abutted to the outer side wall of the surrounding frame through locking bolts.

In the scheme, the connecting lifting lugs drive the hanging frame to move back and forth below the dustproof plate through the sliding fit of the pulleys and the track grooves, and the hanging frame is locked and fixed through the locking bolts, so that the position of the hanging frame is adjusted and limited.

Furthermore, the guide driving part comprises a screw rod, connecting blocks, a guide rod and a hand wheel, the connecting blocks are fixedly arranged on the opposite sides of the connecting lifting lugs, the screw rod is arranged in parallel with the guide rod, the guide rod is fixedly arranged between the two connecting blocks, one end of the screw rod is rotatably connected to one connecting block, the other end of the screw rod is rotatably penetrated through the other connecting block, and the hand wheel is fixedly arranged at the other end of the screw rod.

Furthermore, one end of the movable seat is in threaded sleeve joint with the screw rod, the other end of the movable seat is in sliding sleeve joint with the guide rod, and a sliding groove is formed in the top of the movable seat.

In the scheme, the hand wheel is screwed to drive the screw rod to rotate between the connecting blocks, and the movable seat is driven to slide back and forth along the guide rod through the threaded fit of the screw rod and the movable seat.

Furthermore, the bottom of the hairbrush is fixedly provided with a T-shaped sliding block matched with the sliding groove, and one end of the hairbrush is fixedly provided with a pull handle.

In the scheme, the brush and the movable seat form a detachable structure through the sliding fit of the T-shaped sliding block and the sliding groove, and the brush is pushed and pulled through the pull handle to be assembled and disassembled, so that the brush is convenient to clean or replace.

Furthermore, an ash receiving box is clamped in the hanging frame and is positioned under the hairbrush.

In the above scheme, the brush falls into from the dust guard bottom surface slip brush and connects the ash pan to keep in, and pull out through connecting lug and hanging frame and connect the ash pan to clear up after accumulating certain dust.

Further, the holder includes location slide bar, sliding block, compression spring and splint, the location slide bar is vertical set firmly in the rectangular channel of install bin inside wall, sliding block sliding connection in the location slide bar, the compression spring cover is located the location slide bar is outside, just compression spring both ends fixed connection in the sliding block with the rectangle groove end wall, splint fixed connection in the sliding block.

In the above scheme, when the STB body is installed, two clamping plates which are oppositely arranged up and down are manually pushed open, two ends of the STB body are respectively inserted between the two corresponding clamping plates, the clamping plates are loosened, the resilience force of the compression spring is utilized to push the sliding block to slide along the positioning sliding rod, so that the clamping plates clamp and fix two ends of the STB body, the STB body is installed, meanwhile, the damping effect can be achieved on the STB body, and the STB body is prevented from falling and being damaged.

Furthermore, the front end of the installation box is hinged with a sealing door, the bottom of the sealing door is provided with a plurality of U-shaped through grooves, and the sealing door is further provided with a transparent observation window.

In the above scheme, sealing door can seal the install bin, prevents that the dust from getting into from the opening of install bin front end, and U type leads to the groove and supplies the net twine to pass the wiring department of connecting in the STB body, and transparent observation window is used for observing the panel board of STB body.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a dustproof device of a set top box for network security according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a mounting fixture assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a clamping member according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a sealing door provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a heat dissipation and dust prevention assembly according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of the enclosure frame and the dust-proof plate provided in the embodiment of the present application after being disassembled;

fig. 7 is a schematic structural diagram of a dust-proof plate according to an embodiment of the present application at a second viewing angle;

FIG. 8 is a schematic view of a connecting shackle provided in an embodiment of the present application;

FIG. 9 is a schematic view of a first perspective of a guide actuator according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a guide driving element according to an embodiment of the present application from a second perspective.

In the figure: 10-mounting a fixed component; 110-an installation box; 111-a vent; 112-dust blocking net; 113-a rectangular slot; 120-a set-top box body; 130-a clamp; 131-positioning the sliding rod; 132-a slider; 133-compression spring; 134-a splint; 140-leveling legs; 150-a sealing door; 151-U-shaped through grooves; 152-a transparent viewing window; 20-a heat dissipation dustproof component; 210-a heat dissipation fan; 220-enclosing a frame; 221-embedding grooves; 222-a track groove; 223-reinforcing ribs; 230-dust guard; 231-a fixed frame; 232-dustproof net; 233-positioning bolts; 240-connecting lifting lugs; 241-a pulley; 242-locking bolt; 250-hanging frame; 260-a movable seat; 261-a chute; 270-a brush; 271-T type slide block; 272-a pull handle; 280-a guide drive; 281-screw rod; 282-connecting block; 283-a guide rod; 284-a hand wheel; 290-Ash tray.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Referring to fig. 1 to 10, the present application provides a dustproof device for a network security set top box, which includes a mounting and fixing component 10 and a heat dissipation and dustproof component 20.

Referring to fig. 2, 3 and 4, the mounting and fixing assembly 10 includes a mounting box 110, a set-top box body 120, two sets of clamping members 130 and leveling legs 140, the two sets of clamping members 130 are arranged in pairs, the two sets of clamping members 130 are symmetrically and slidably arranged on the inner side wall of the mounting box 110, the set-top box body 120 is clamped and fixed between the two sets of clamping members 130, ventilation openings 111 are respectively formed on the top wall and the bottom wall of the mounting box 110, dust blocking nets 112 are embedded in the ventilation openings 111 on the top wall of the mounting box 110, heat dissipation channels are formed through the upper and lower symmetrical ventilation openings 111, heat dissipation is facilitated inside the mounting box 110, the dust blocking nets 112 prevent sundries on the top of the mounting box 110 from falling into the installation box, the leveling legs 140 are mounted at four corners of the bottom of the mounting box 110, and are connected by bolts or welded and fixed, the mounting box 110 is stably supported by the leveling legs 140, and kept balanced.

Referring to fig. 2 and 3, the clamping member 130 includes a positioning sliding rod 131, a sliding block 132, a compression spring 133 and clamping plates 134, the positioning sliding rod 131 is vertically fixed in the rectangular groove 113 on the inner side wall of the installation box 110 and is fixed by bolts or welding, the sliding block 132 is slidably connected to the positioning sliding rod 131, the compression spring 133 is sleeved outside the positioning sliding rod 131, two ends of the compression spring 133 are fixedly connected to the sliding block 132 and the end wall of the rectangular groove 113, the clamping plates 134 are fixedly connected to the sliding block 132 and are fixed by bolts or welding, when the set-top box body 120 is installed, two clamping plates 134 which are arranged oppositely up and down are manually pulled apart, two ends of the set-top box body 120 are respectively inserted between the two corresponding clamping plates 134, the clamping plates 134 are loosened, the sliding block 132 is pushed to slide along the positioning sliding rod 131 by the resilience force of the compression spring 133, so that the clamping plates 134 clamp two ends of the set-top box body 120, the installation of the set-top box body 120 is completed, and meanwhile, the shock absorption effect on the set-top box body 120 can be achieved, so that the set-top box body is prevented from being damaged due to falling.

Referring to fig. 2 and 4, a sealing door 150 is hinged to the front end of the installation box 110, the sealing door 150 can seal the installation box 110 to prevent dust from entering from an opening at the front end of the installation box 110, a plurality of U-shaped through slots 151 are formed in the bottom of the sealing door 150, the U-shaped through slots 151 allow network cables to pass through a connection wire connected to the set top box body 120, and a transparent observation window 152 is further disposed on the sealing door 150 and used for observing an instrument panel of the set top box body 120.

Referring to fig. 5, 6, 7, 8, 9 and 10, the heat dissipation and dust prevention assembly 20 includes a heat dissipation fan 210, an enclosure frame 220, a dust guard 230, a hanging frame 250, a movable seat 260 and a brush 270, the enclosure frame 220 is installed at the bottom of the installation box 110, the enclosure frame 220 and the installation box 110 are integrally formed or welded and fixed, an inner cavity of the enclosure frame 220 is communicated with the ventilation opening 111, a reinforcing rib 223 is fixedly arranged at a connection position of the enclosure frame 220 and the installation box 110, the connection of the two is reinforced, the heat dissipation fan 210 is installed in the surrounding frame 220 and is fixed by bolts or welding, the heat dissipation fan 210 is arranged right at the ventilation opening 111 of the bottom wall of the installation box 110, the dust guard 230 covers the bottom end of the surrounding frame 220, the hanging frame 250 is slidably hung below the surrounding frame 220 through the connecting lifting lugs 240, the movable seat 260 is movably arranged between the connecting lifting lugs 240 through the guide driving piece 280, the brush 270 is slidably inserted at the top of the movable seat 260, and the brush 270 abuts against the bottom surface of the dust guard 230.

In this embodiment, the bottom end of the enclosure frame 220 is provided with an embedded groove 221, the embedded groove 221 is annular, the dust guard 230 is adapted to the embedded groove 221, the dust guard 230 includes a fixing frame 231 and a dust screen 232, the dust screen 232 is annular, the dust screen 232 is fixedly embedded in the fixing frame 231, the fixing frame 231 is covered in the embedded groove 221 through a positioning bolt 233, the fixing frame 231 is detachably installed in the embedded groove 221 through the positioning bolt 233, the dust guard 230 is convenient to detach and clean, the dust screen 232 is used for filtering external air entering the installation box 110 through the bottom of the enclosure frame 220, and dust is prevented from entering the installation box 110.

When the dust collecting device is specifically arranged, two sides of the enclosure frame 220 are both provided with the rail grooves 222, four connecting lifting lugs 240 are symmetrically arranged, the bottom end of each connecting lifting lug 240 is fixedly connected with the end portion of the hanging frame 250, the connecting lifting lugs 240 and the hanging frame 250 are integrally formed or welded and fixed, the top end of each connecting lifting lug 240 is rotatably provided with a pulley 241, the pulleys 241 are slidably inserted into the rail grooves 222, one of the connecting lifting lugs 240 abuts against the outer side wall of the enclosure frame 220 through a locking bolt 242, the connecting lifting lug 240 drives the hanging frame 250 to move back and forth below the dust-proof plate 230 through the sliding fit of the pulley 241 and the rail grooves 222, and is locked and fixed through the locking bolt 242, so that the position of the hanging frame 250 is adjusted and limited, in some specific embodiments, the dust collecting box 290 is clamped in the hanging frame 250, the dust collecting box 290 is positioned under the brush 270, the brush 270 brushes brush the dust removed from the bottom surface of the dust-proof plate 230 and fall into the dust collecting box 290, after certain dust is accumulated, the dust receiving box 290 is pulled out through the connecting lifting lug 240 and the hanging frame 250 for cleaning.

In this application, the guide driving member 280 includes a screw 281, a connecting block 282, a guiding rod 283 and a hand wheel 284, the connecting block 282 is fixedly arranged at the opposite side of the connecting lug 240, the screw 281 is parallel to the guiding rod 283, the guiding rod 283 is fixedly arranged between two connecting blocks 282, one end of the screw 281 is rotatably connected to one connecting block 282, the other end of the screw 281 is rotatably penetrated through another connecting block 282, one end of the movable seat 260 is sleeved on the screw 281 by a thread, the other end of the movable seat 260 is slidably sleeved on the guiding rod 283, the hand wheel 284 is fixedly arranged at the other end of the screw 281, the hand wheel 284 is driven by screwing the hand wheel 281 to rotate between the connecting blocks 282, and the movable seat 260 is driven to slide back and forth along the guiding rod 283 by the thread fit of the screw 281.

Specifically, the top of the movable seat 260 is provided with a sliding groove 261, the bottom of the brush 270 is fixedly provided with a T-shaped sliding block 271 adapted to the sliding groove 261, one end of the brush 270 is fixedly provided with a pull handle 272, the brush 270 and the movable seat 260 form a detachable structure through the sliding fit of the T-shaped sliding block 271 and the sliding groove 261, and the brush 270 is pushed and pulled by the pull handle 272 to be assembled and disassembled, so that the brush 270 can be conveniently cleaned or replaced.

The working principle of the set top box dustproof device for network security is as follows: when the air-cooling type set top box is used, the installation box 110 is stably supported by the leveling supporting legs 140 and is kept balanced, the sealing door 150 at the front end of the installation box 110 is opened, the two clamping plates 134 which are oppositely arranged up and down are manually opened, the two ends of the set top box body 120 are respectively inserted between the two corresponding clamping plates 134, the clamping plates 134 are loosened, the sliding block 132 is pushed to slide along the positioning sliding rod 131 by the resilience force of the compression spring 133, the two ends of the set top box body 120 are clamped and fixed by the clamping plates 134, the installation of the set top box body 120 is completed, the sealing door 150 is closed, in the using process of the set top box body 120, the heat-radiating fan 210 sucks external cold air, the external cold air is filtered by the dust-proof plate 230 and then enters the enclosure frame 220, the heat-cooling channel formed by the upper and lower ventilation openings 111 is used for quickly air-cooling heat radiation of the set top box body 120, and the dust-proof net 232 and the dust-blocking net 112 are used for filtering external air entering the installation box 110, effectively improves the dustproof performance of the device, can prevent dust from entering the set top box body 120 and covering the components in the set top box body 120 to influence the heat dissipation effect, the hand wheel 284 is screwed to drive the screw 281 to rotate between the connecting blocks 282, the screw 281 is matched with the thread of the movable seat 260 to drive the movable seat 260 to slide back and forth along the guide rod 283, thereby driving the brush 270 to brush off the dust attached on the dust screen 232 in a sliding manner, the cleaned dust falls into the dust receiving box 290 for temporary storage, the dust receiving box 290 is pulled out for cleaning through the connecting lifting lug 240 and the hanging frame 250 after certain dust is accumulated, meanwhile, the dust guard 230 and the bottom of the surrounding frame 220 are detachable, so that the dust guard 230 can be conveniently detached for cleaning or replacement, and the situation that the heat dissipation channel is blocked to cause the set top box body 120 to be burnt due to poor heat dissipation effect and influence the normal use of the set top box body is avoided.

It should be noted that the specific model specifications of the set-top box body 120 and the cooling fan 210 need to be determined by model selection according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so detailed and redundant operations are not needed.

The power supply and the principle of the set-top box body 120 and the cooling fan 210 are clear to those skilled in the art and will not be described in detail herein.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A set top box dustproof device for network security is characterized by comprising

The installation fixing component (10) comprises an installation box (110), a set top box body (120), clamping pieces (130) and leveling supporting legs (140), wherein the clamping pieces (130) are oppositely arranged in two groups in pairs, the two groups of clamping pieces (130) are symmetrically arranged on the inner side wall of the installation box (110) in a sliding mode, the set top box body (120) is clamped and fixed between the two groups of clamping pieces (130), ventilation openings (111) are formed in the top wall and the bottom wall of the installation box (110), a dust blocking net (112) is embedded in the ventilation openings (111) in the top wall of the installation box (110), and the leveling supporting legs (140) are installed at four corners of the bottom of the installation box (110);

the heat dissipation dustproof assembly (20), the heat dissipation dustproof assembly (20) comprises a heat dissipation fan (210), a surrounding frame (220), a dustproof plate (230), a hanging frame (250), a movable seat (260) and a brush (270), the enclosure frame (220) is arranged at the bottom of the installation box (110), the heat radiation fan (210) is arranged in the enclosure frame (220), the heat radiation fan (210) is arranged right opposite to the ventilation opening (111) on the bottom wall of the installation box (110), the dust guard (230) is covered at the bottom end of the enclosure frame (220), the hanging frame (250) is hung below the enclosure frame (220) in a sliding manner through a connecting lifting lug (240), the movable seat (260) is movably arranged between the connecting lifting lugs (240) through a guide driving piece (280), the brush (270) is slidably inserted into the top of the movable seat (260), and the brush (270) abuts against the bottom surface of the dust-proof plate (230).

2. The set top box dustproof device for network security according to claim 1, wherein an embedded groove (221) is formed at the bottom end of the surrounding frame (220), the embedded groove (221) is annular, rail grooves (222) are formed in both sides of the surrounding frame (220), and a reinforcing rib (223) is fixedly arranged at the connection position of the surrounding frame (220) and the installation box (110).

3. The set top box dust-proof device for network security according to claim 2, wherein the dust-proof plate (230) comprises a fixing frame (231) and a dust-proof net (232), the dust-proof net (232) is in a ring shape, the dust-proof net (232) is fixedly embedded in the fixing frame (231), and the fixing frame (231) is covered in the embedding groove (221) through a positioning bolt (233).

4. The set top box dustproof device for network security according to claim 2, wherein four connecting lifting lugs (240) are symmetrically arranged, the bottom end of each connecting lifting lug (240) is fixedly connected with the end of the hanging frame (250), a pulley (241) is rotatably arranged at the top end of each connecting lifting lug (240), the pulleys (241) are slidably inserted into the track grooves (222), and one of the connecting lifting lugs (240) abuts against the outer side wall of the enclosure frame (220) through a locking bolt (242).

5. The set-top box dustproof device for network security according to claim 1, wherein the guide driving member (280) comprises a screw rod (281), a connecting block (282), a guide rod (283) and a hand wheel (284), the connecting block (282) is fixedly arranged at the opposite side of the connecting lug (240), the screw rod (281) is arranged in parallel with the guide rod (283), the guide rod (283) is fixedly arranged between two connecting blocks (282), one end of the screw rod (281) is rotatably connected to one connecting block (282), the other end of the screw rod (281) is rotatably penetrated through the other connecting block (282), and the hand wheel (284) is fixedly arranged at the other end of the screw rod (281).

6. The set top box dust-proof device for network security according to claim 5, wherein one end of the movable seat (260) is sleeved on the screw (281) in a threaded manner, the other end of the movable seat (260) is sleeved on the guide rod (283) in a sliding manner, and a sliding groove (261) is formed in the top of the movable seat (260).

7. The set top box dustproof device for network security according to claim 6, wherein a T-shaped sliding block (271) adapted to the sliding groove (261) is fixedly arranged at the bottom of the brush (270), and a pull handle (272) is fixedly arranged at one end of the brush (270).

8. The set top box dustproof device for network security according to claim 7, wherein a dust receiving box (290) is clamped in the hanging frame (250), and the dust receiving box (290) is located right below the brush (270).

9. The set top box dustproof device for network security according to claim 1, wherein the clamping member (130) comprises a positioning sliding rod (131), a sliding block (132), a compression spring (133) and a clamping plate (134), the positioning sliding rod (131) is vertically fixed in the rectangular groove (113) of the inner side wall of the installation box (110), the sliding block (132) is slidably connected to the positioning sliding rod (131), the compression spring (133) is sleeved outside the positioning sliding rod (131), two ends of the compression spring (133) are fixedly connected to the sliding block (132) and the end wall of the rectangular groove (113), and the clamping plate (134) is fixedly connected to the sliding block (132).

10. The set top box dustproof device for network security according to claim 1, wherein a sealing door (150) is hinged to the front end of the installation box (110), a plurality of U-shaped through slots (151) are formed in the bottom of the sealing door (150), and a transparent viewing window (152) is further formed in the sealing door (150).

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