CN218502768U

CN218502768U - Computer host dust collector

Info

Publication number: CN218502768U
Application number: CN202222437658.1U
Authority: CN
Inventors: 刘孟玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-21
Anticipated expiration: 2032-09-15

Abstract

The utility model belongs to the technical field of the computer, especially, a computer mainframe dust collector, to current cleaning effect poor, the dust holds the problem of polluted environment, the following scheme is proposed at present, it includes the two-chamber case, the inside sliding connection of two-chamber case has the draw runner, the left lug sliding connection of draw runner has the balladeur train, the top of balladeur train is articulated with the inside of two-chamber case, the bottom of balladeur train is articulated to have the slider, the rear side sliding connection of slider has the rack, the tooth meshing on the right side of rack top has the pinion, power unit can produce the air current through the flabellum wheelset, can also inhale the air that mixes with the dust when strikeing the clearance to the computer mainframe, avoid the dust overflow all around; utilize the computer clearance brush to brush the clearance to the main frame, the reinforcing friction utilizes the friction to clear up spot etc. and the reinforcing clearance effect utilizes the air current can also the inhaled air when clearing up the main frame to filter the inhaled air.

Description

Computer host dust collector

Technical Field

The utility model relates to a computer technology field especially relates to a computer mainframe dust collector.

Background

After the host computer is used for a period of time, the dust in the host computer needs to be cleaned, and at this time, a dust removal device needs to be used, for example, a patent with application number 202120894128.2 discloses a novel host computer dust removal device.

But present computer host computer dust collector uses the air pump to drive the air current and strikes the clearance to computer host computer inside more, and this kind of clearance mode is few with computer host computer inner structure's friction, can only clear up the inside floating dust of computer host computer, can't clear up some spot dusts that glue on the host computer, and the clearance effect is poor, and it is more that the simple air current that uses when using the air pump clearance to wash away moreover, leads to mixing with the air of dust to be excessive, pollutes the environment around easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the cleaning effect is poor in the prior art, and the dust holds the shortcoming of polluted environment, and the proposed dust removal device for the main frame.

In order to realize the purpose, the utility model adopts the following technical scheme:

a dust removal device for a computer mainframe comprises a double-cavity box, wherein a slide bar is connected inside the double-cavity box in a sliding mode, a sliding frame is connected to a convex block on the left side of the slide bar in a sliding mode, the top end of the sliding frame is hinged to the inside of the double-cavity box, a sliding block is hinged to the bottom end of the sliding frame, a rack frame is connected to the rear side of the sliding block in a sliding mode, a small gear is meshed with teeth on the right side of the top of the rack frame, a large helical gear is connected to the rear side of the small gear in a bolted mode, a rotating shaft is connected to the axis of the bottom of the small helical gear in a bolted mode, a computer cleaning brush is connected to the bottom end of the rotating shaft in a bolted mode, a fan blade wheel set is connected to the right side of the top end inside the double-cavity box in a rotating mode, a filter cup is clamped to the middle end inside the double-cavity box, an air guide assembly is communicated between openings on the two sides of the double-cavity box, a power mechanism is meshed with the teeth of the fan blade wheel set, the power mechanism is hinged to the slide bar, the power mechanism can drive the sliding frame to rotate the sliding frame through the slide bar, the slide bar can drive the sliding block to rotate the sliding block, the rack frame to move through the sliding block, the rack frame through the small gear, the large helical gear can drive the large helical gear to rotate through the small gear, and the rotating shaft through the small gear, and the rack to drive the rack to rotate through the computer cleaning brush; the power mechanism can generate airflow through the fan blade wheel set, and can suck air mixed with dust while performing impact cleaning on the computer host, so that dust is prevented from overflowing; utilize the computer clearance brush to brush the clearance to the main frame, the reinforcing friction utilizes the friction to clear up spot etc. and the reinforcing clearance effect utilizes the air current can also the inhaled air when clearing up the main frame to filter the inhaled air.

Preferably, power unit includes inverter motor, bull stick and main bevel gear, and the right side of two-chamber incasement portion is bolted with inverter motor's rear side, and inverter motor's output and the bottom bolt of bull stick, the surface of bull stick rotates with the inside of two-chamber case to be cup jointed, and the axle center department bolt of the top of bull stick and main bevel gear bottom, main bevel gear and the meshing of flabellum wheelset, power unit still include with the eccentric subassembly of bull stick bolt.

Furthermore, the power supply of the variable frequency motor is connected, the variable frequency motor can drive the rotating rod to rotate, the rotating rod is rotatably arranged with the double-cavity box through the bearing, the rotating rod rotates stably, the rotating rod can rotate stably, and the rotating rod can drive the main bevel gear to rotate.

Preferably, the eccentric assembly comprises an eccentric wheel and a connecting ring, the bottom end of the surface of the rotating rod is bolted with the rear side of the axle center of the eccentric wheel, the surface of the eccentric wheel is rotatably sleeved with the inside of the connecting ring, and the left side of the connecting ring is hinged with the right side of the slide bar.

Furthermore, the rotating rod can drive the eccentric wheel to rotate, an eccentric structure is formed between the eccentric wheel and the rotating rod, the rotating rod drives the eccentric wheel to rotate, the eccentric wheel integrally moves left and right in the rotating process, the eccentric wheel can rotate in the connecting ring and drive the connecting ring to move left and right, and the connecting ring can drive the sliding strip to move left and right.

Preferably, the fan blade wheel set comprises a fan blade wheel and an auxiliary bevel gear, teeth of the auxiliary bevel gear are meshed with teeth of the main bevel gear, the left side of the auxiliary bevel gear is bolted with the axis of the right side of the fan blade wheel, and the surface of the fan blade wheel is rotatably sleeved with the inside of the double-cavity box.

Furthermore, the main bevel gear and the auxiliary bevel gear are bevel gears, the main bevel gear can be meshed with the auxiliary bevel gear, the main bevel gear can conveniently drive the auxiliary bevel gear to rotate, the auxiliary bevel gear can drive the fan impeller to rotate, the fan impeller is arranged in a cavity at the top of the double-cavity box in a rotating mode through a bearing, the fan impeller can stably rotate, and air flow can be generated in the rotating process of the fan impeller.

Preferably, the rack frame is composed of a sliding frame on the left side and a rack on the right side of the sliding frame, a sliding groove of the sliding frame is in sliding connection with a rear side of the sliding block, a limiting frame is in sliding connection with the rear side of the rack, the limiting frame is in bolted connection with the double-cavity box, teeth of the rack are meshed with teeth of a pinion, and the axis of the large helical gear is in rotating connection with the inside of the double-cavity box.

Furthermore, the sliding block can slide in the sliding frame of the rack frame in the moving process and drive the sliding frame to move left and right, the sliding frame is arranged in a sliding mode through the sliding rail and the double-cavity box, the sliding frame is guided, the sliding frame can stably move left and right, the rack is arranged in a sliding mode through the sliding rail and the limiting frame, the rack is guided, the rack can stably move left and right, the rack is prevented from being driven to deviate, the rack can drive the pinion to rotate, the large helical gear is arranged in a rotating mode through the bearing and the double-cavity box, and the large helical gear can stably rotate.

Preferably, the air guide assembly comprises two sealing covers, two hoses, two air suction pipes and two air blowing pipes, the openings on the two sides of the double-cavity box are in threaded connection with the two sealing covers respectively, the top ends of the hoses penetrate through holes in the side faces of the sealing covers, the hoses are communicated with cavities in the tops of the double-cavity box, and the top ends of the air suction pipes and the air blowing pipes are communicated with the bottom ends of the two hoses respectively.

Further, the air current gets into the sealed lid on right side, then through the sealed epaxial hose of lid on the right side and get into the gas blow pipe, the bottom bolt support of two-chamber case, gas blow pipe and breathing pipe are all installed on the support, the support rotates the setting with the pivot, the support supports the pivot stably, the gas blow pipe can blow the inside dust of computer mainframe, make the dust mix with and float in the air, fan wheel rotates the in-process and produces suction in the left side of two-chamber case top cavity, suction produces in the left hose through the conduction of the sealed lid in left side, and conduct the breathing pipe, the breathing pipe inhales the air that mixes with the dust in the cavity at two-chamber case top, the air filters through filtering cup, filtering cup adopts the filtering cup that the dust catcher is commonly used.

Has the advantages that:

1. the power mechanism can drive the sliding frame to rotate through the sliding strip, the sliding frame can drive the rack frame to move through the sliding block, the rack frame can drive the large helical gear to rotate through the pinion, the large helical gear can drive the rotating shaft to rotate through the small helical gear, and the rotating shaft brushes and cleans a computer host through a computer cleaning brush;

2. the power mechanism can generate air flow through the fan blade wheel set, and can suck air mixed with dust while performing impact cleaning on the computer host, so that dust overflow is avoided;

the utility model discloses in: utilize the computer clearance brush to brush the clearance to the main frame, the reinforcing friction utilizes the friction to clear up spot etc. and the reinforcing clearance effect utilizes the air current can also the inhaled air when clearing up the main frame to filter the inhaled air.

Drawings

Fig. 1 is a schematic front view of a computer host dust removing apparatus provided by the present invention;

fig. 2 is a schematic view of a large helical gear structure of a dust removing device for a computer host provided by the present invention;

fig. 3 is a schematic rear view structure diagram of a power mechanism of a computer host dust removing device provided by the present invention;

fig. 4 is the utility model provides a computer host dust collector's inverter motor spatial structure schematic diagram.

In the figure: 1. a dual chamber tank; 2. a power mechanism; 21. a variable frequency motor; 22. a rotating rod; 23. a main bevel gear; 24. an eccentric wheel; 25. a connecting ring; 3. a slide bar; 4. a carriage; 5. a slider; 6. a rack frame; 7. a pinion gear; 8. a large helical gear; 9. a small helical gear; 10. a rotating shaft; 11. a computer cleaning brush; 12. a fan blade wheel set; 13. and (4) a filter cup.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-4, a computer mainframe dust removing device comprises a double-chamber box 1, a slide bar 3 is connected inside the double-chamber box 1 in a sliding manner, a sliding block 4 is connected on the left side of the slide bar 3 in a sliding manner, the top end of the sliding block 4 is hinged with the inside of the double-chamber box 1, a sliding block 5 is hinged on the bottom end of the sliding block 4, a rack frame 6 is connected on the rear side of the sliding block 5 in a sliding manner, a small gear 7 is meshed with teeth on the right side of the top of the rack frame 6, a large helical gear 8 is bolted on the rear side of the small gear 7, a small helical gear 9 is meshed with teeth on the left side of the large helical gear 8, a rotating shaft 10 is bolted on the shaft center of the bottom of the small helical gear 9, the bottom end of the rotating shaft 10 extends to the bottom of the double-chamber box 1 and is bolted with a computer cleaning brush 11, a fan blade wheel set 12 is rotatably sleeved on the right side of the top end inside the double-chamber 1, a filter cup 13 is clamped at the middle end inside the double-chamber 1, air guide components are communicated between openings on two sides of the double-chamber 1, the teeth of the fan blade wheel set 12 are meshed with the power mechanism 2, the power mechanism 2 is hinged with the slide bar 3, the power mechanism 2 is bolted with the double-cavity box 1, the double-cavity box 1 is divided into an upper cavity and a lower cavity by an internal partition plate, the cavity at the top is used for accommodating the filter cup 13, the fan blade wheel set 12 and the air guide component, the cavity at the bottom is used for accommodating the power mechanism 2, the slide bar 3, the sliding frame 4, the sliding block 5, the rack frame 6, the pinion 7, the large helical gear 8, the small helical gear 9 and the rotating shaft 10, the power mechanism 2 can drive the fan blade wheel set 12 to rotate, air flow can be generated in the rotating process of the fan blade wheel set 12, the air flow can generate suction force and blowing air flow at the bottom of the computer cleaning brush 11 through the guide of the air guide component, the air mixed with dust is sucked into the cavity at the top of the double-cavity of the box 1, and the air is filtered through the filter cup 13, the filter cup 13 is a filter cup commonly used by dust collectors, the power mechanism 2 can drive the slide bar 3 to move left and right, the slide bar 3 is arranged in a sliding mode with the double-cavity box 1 through a sliding rail, the slide bar 3 is guided, the slide bar 3 can move left and right stably, when the slide bar 3 moves right, a convex block of the slide bar 3 can slide in a sliding hole in the top of the slide frame 4 and drive the slide frame 4 to rotate right, the slide frame 4 can drive the sliding block 5 to move right, the sliding block 5 slides in a sliding groove of the rack frame 6 and drives the rack frame 6 to move right, the rack frame 6 can drive the pinion 7 to rotate anticlockwise, the pinion 7 can drive the large helical gear 8 to rotate anticlockwise, the large helical gear 8 is arranged in a rotating mode with the double-cavity box 1 through a bearing, resistance of rotation of the large helical gear 8 is reduced, rotation stability of rotation of the large helical gear 8 is guaranteed, the large helical gear 8 and the small helical gear 9 are helical gears, the large helical gear 8 can be meshed with the small helical gear 9, the large helical gear can drive the brush 10 to rotate, a host computer cleaner can drive the large helical gear to clean air flow of the cleaner, and the host computer can clean air flow which can be cleaned, and the host computer can clean the cleaner can clean the host computer by utilizing friction, and the air flow of the cleaner can be cleaned, and the host computer can be cleaned, and the host can be cleaned by the cleaner.

The utility model discloses in, power unit 2 includes inverter motor 21, bull stick 22 and main bevel gear 23, the inside right side of two-chamber case 1 and inverter motor 21's rear side bolt, inverter motor 21's output and the bottom bolt of bull stick 22, the surface of bull stick 22 is cup jointed with the inside rotation of two-chamber case 1, the top of bull stick 22 and the axle center department bolt of main bevel gear 23 bottom, main bevel gear 23 meshes with flabellum wheelset 12, power unit 2 still includes the eccentric assembly with bull stick 22 bolt, switch-on inverter motor 21's power, inverter motor 21 can drive bull stick 22 and rotate, bull stick 22 passes through the bearing and rotates the setting with two-chamber case 1, it is stable to rotate bull stick 22, let bull stick 22 can rotate steadily, bull stick 22 can drive main bevel gear 23 and rotate, main bevel gear 23 can drive flabellum wheelset 12 and rotate, flabellum wheelset 12 rotates the in-process and can produce suction in the inside left side of two-chamber 1, and produce the air current that blows in the first time in case 1 inside.

The utility model discloses in, eccentric subassembly includes eccentric wheel 24 and clamping ring 25, the bottom on bull stick 22 surface and the rear side bolt of eccentric wheel 24 axle center department, eccentric wheel 24's surface and clamping ring 25's inside are rotated and are cup jointed, clamping ring 25's left side is articulated with draw runner 3's right side, bull stick 22 can drive eccentric wheel 24 and rotate, it lets bull stick 22 drive eccentric wheel 24 and rotate the whole removal that is of in-process eccentric wheel 24 to be eccentric structure between eccentric wheel 24 and the bull stick 22, eccentric wheel 24 can rotate and drive clamping ring 25 and control in the inside of clamping ring 25, clamping ring 25 can drive draw runner 3 and control, the convenient reciprocating motion power of producing about to draw runner 3 says, make things convenient for the transmission of structure.

The utility model discloses in, flabellum wheelset 12 includes flabellum wheel and vice bevel gear, vice bevel gear tooth and the tooth meshing of main bevel gear 23, vice bevel gear's left side and the axle center department bolt joint on flabellum wheel right side, flabellum wheel's surface cup joints with the inside rotation of two-chamber case 1, main bevel gear 23 and vice bevel gear are bevel gear, let main bevel gear 23 can with vice bevel gear meshing, make things convenient for main bevel gear 23 to drive vice bevel gear and rotate, vice bevel gear can drive flabellum wheel rotation, flabellum wheel passes through the cavity rotation setting at bearing and 1 top of two-chamber case, let flabellum wheel can rotate steadily, the flabellum wheel rotates the in-process and can produce the air current.

The utility model discloses in, rack 6 comprises left sliding frame and the rack on sliding frame right side, the spout of sliding frame slides with the back of slider 5 and is connected, the back of rack slides and is connected with spacing frame, spacing frame and two-chamber case 1 bolt joint, the tooth of rack meshes with the tooth of pinion 7, the axle center department of big skewed tooth gear 8 is connected with the inside rotation of two-chamber case 1, slider 5 removes the in-process and can slide and drive about the sliding frame in rack 6's sliding frame, the sliding frame passes through the slide rail and slides with two-chamber case 1 and sets up, guide the sliding frame, let the sliding frame can be steady about removing, the rack passes through slide rail and the setting of spacing frame slip, guide the rack, let the rack can be steady about removing, avoid the rack to be driven the skew, the rack can drive pinion 7 rotations, big skewed tooth gear 8 passes through the bearing and rotates with two-chamber case 1 and sets up, let big skewed tooth gear 8 can rotate steadily.

The utility model discloses in, the air guide subassembly is including sealed lid, the hose, breathing pipe and gas blow pipe, the quantity of sealed lid and hose is two, the opening of 1 both sides of two-chamber case respectively with two sealed lid threaded connection, the hole of sealed lid side is run through on the top of hose, the hose communicates with the cavity at 1 top of two-chamber case, the top of breathing pipe and gas blow pipe communicates with the bottom of two hoses respectively, the air current gets into the sealed lid on right side, then seal the sealed lid on right side and get into the gas blow pipe, the bottom bolt support of two-chamber case 1, gas blow pipe and breathing pipe are all installed on the support, the support rotates with pivot 10 and sets up, the support supports stability to pivot 10, the gas blow pipe can blow the inside dust of computer mainframe, make the dust mix with and float in the air, fan impeller rotates the in-process and produces suction in the left side of 1 top cavity of two-chamber case, suction is produced in left side hose through the conduction of the sealed lid in left side, and conducts the breathing pipe, the breathing pipe inhales the air that mixes with the dust in the cavity at 1 top of air suction pipe, the air is filtered through filter cup 13, filter cup that filter cup 13 adopted the dust catcher is commonly used.

Example two

This example differs from example 1 in that: replace filter cup 13 for the filter screen, utilize the filter screen can filter the air, the filter effect is good to filter screen intensity is high, but the filter screen is few with the contact surface of air, and the filter effect is poor, therefore, this application is preferred to filter cup 13.

The working principle is as follows: the double-cavity box 1 is divided into an upper cavity and a lower cavity by utilizing an internal partition plate, the cavity at the top is used for containing a filter cup 13, a fan blade wheel set 12 and an air guide component, the cavity at the bottom is used for containing a power mechanism 2, a slide bar 3, a sliding frame 4, a sliding block 5, a rack frame 6, a pinion 7, a large helical gear 8, a small helical gear 9 and a rotating shaft 10, a power supply of a variable frequency motor 21 is switched on, the variable frequency motor 21 can drive a rotating rod 22 to rotate, the rotating rod 22 is rotatably arranged with the double-cavity box 1 through a bearing to stabilize the rotation of the rotating rod 22, the rotating rod 22 can drive a main tapered gear 23 to rotate, the main tapered gear 23 and an auxiliary tapered gear are both tapered gears, the main tapered gear 23 can be meshed with the auxiliary tapered gear, the main tapered gear 23 is convenient for driving the auxiliary tapered gear to rotate, and the auxiliary tapered gear can drive a fan impeller to rotate, the fan impeller is rotatably arranged with the cavity at the top of the double-cavity box 1 through a bearing, the fan impeller can stably rotate, air flow can be generated in the rotating process of the fan impeller, the air flow enters the sealing cover at the right side and then enters the air blowing pipe through the hose on the sealing cover at the right side, the bottom of the double-cavity box 1 is bolted with a support, the air blowing pipe and the air suction pipe are both arranged on the support, the support is rotatably arranged with the rotating shaft 10, the support stably supports the rotating shaft 10, the air blowing pipe can blow, so that dust is mixed in the air and floats up, suction force is generated at the left side of the cavity at the top of the double-cavity box 1 in the rotating process of the fan impeller, the suction force is generated in the hose at the left side through the conduction of the sealing cover at the left side and is transmitted to the air suction pipe, the air mixed with the dust is sucked into the cavity at the top of the double-cavity box 1, the air is filtered through the filter cup 13, the filter cup commonly used by a dust collector is adopted by the filter cup 13, meanwhile, the rotating rod 22 can drive the eccentric wheel 24 to rotate, an eccentric structure is formed between the eccentric wheel 24 and the rotating rod 22, the rotating rod 22 drives the eccentric wheel 24 to rotate, the eccentric wheel 24 can rotate inside the connecting ring 25 and drive the connecting ring 25 to move left and right, the connecting ring 25 can drive the sliding strip 3 to move left and right, the sliding strip 3 is arranged in a sliding mode with the double-cavity box 1 through a sliding rail, the sliding strip 3 is guided, the sliding strip 3 can stably move left and right, when the sliding strip 3 moves right, a convex block of the sliding strip 3 can slide in a sliding hole in the top of the sliding frame 4 and drive the sliding frame 4 to rotate right, the sliding frame 4 can drive the sliding block 5 to move right, the sliding block 5 slides in a sliding groove of the rack frame 6 and drives the rack frame 6 to move right, the rack frame 6 can drive the pinion 7 to rotate counterclockwise, the pinion 7 can drive the large helical gear 8 to rotate, the large helical gear 8 is arranged in a rotating mode with the double-cavity box 1 through a bearing, the resistance to the rotation of the large helical gear 8 is reduced, the stability of the rotation of the large helical gear 8 is guaranteed, both the large helical gear 8 and the helical brush can drive the small helical brush 9, the helical brush to rotate the small helical gear to rotate, the counter-helical brush 11, the counter can drive the counter-helical gear 11, the counter-helical brush to rotate, the counter-helical gear counter helical gear 11, the counter can drive the counter helical gear 11, the counter-helical brush to rotate, the counter helical gear 11, the counter helical brush, the counter-helical gear 11, the counter helical gear can drive the counter helical gear to rotate, the counter-helical gear 11, the counter helical brush, the counter helical gear 11, the counter helical gear to rotate, the counter helical gear can drive the counter helical gear to rotate, the counter-helical gear to rotate, the counter helical gear 10, the counter.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a computer mainframe dust collector, including two-chamber case (1), a serial communication port, the inside sliding connection of two-chamber case (1) has draw runner (3), the left lug sliding connection of draw runner (3) has balladeur train (4), the top of balladeur train (4) is articulated with the inside of two-chamber case (1), the bottom of balladeur train (4) articulates there is slider (5), the rear side sliding connection of slider (5) has rack (6), the tooth meshing on rack (6) top right side has pinion (7), the rear side bolt of pinion (7) has big skewed tooth gear (8), the left tooth meshing of big skewed tooth gear (8) has little skewed tooth gear (9), the axle center department bolt of little skewed tooth gear (9) bottom has pivot (10), the bottom bolt of pivot (10) has computer cleaning brush (11), the right side rotation on the inside top of two-chamber case (1) has cup jointed wheelset (12), the inside middle-end joint of two-chamber case (1) has filter cup (13), the opening of two-chamber case (1) both sides has between the air guide wheelset subassembly, power unit (2) and articulated mechanism (2) have.

2. The computer mainframe dust removal device according to claim 1, wherein the power mechanism (2) comprises a variable frequency motor (21), a rotating rod (22) and a main bevel gear (23), the right side inside the dual-chamber box (1) is bolted to the rear side of the variable frequency motor (21), the output end of the variable frequency motor (21) is bolted to the bottom end of the rotating rod (22), the surface of the rotating rod (22) is rotatably sleeved with the inside of the dual-chamber box (1), the top end of the rotating rod (22) is bolted to the axis of the bottom of the main bevel gear (23), the main bevel gear (23) is meshed with the fan blade wheel set (12), and the power mechanism (2) further comprises an eccentric component bolted to the rotating rod (22).

3. The computer mainframe dust removing device according to claim 2, wherein the eccentric component comprises an eccentric wheel (24) and a connecting ring (25), the bottom end of the surface of the rotating rod (22) is bolted with the rear side of the eccentric wheel (24) at the axle center, the surface of the eccentric wheel (24) is rotatably sleeved with the inside of the connecting ring (25), and the left side of the connecting ring (25) is hinged with the right side of the slide bar (3).

4. The computer mainframe dust removal device according to claim 2, wherein the fan blade wheel set (12) comprises a fan blade wheel and an auxiliary bevel gear, teeth of the auxiliary bevel gear are meshed with teeth of the main bevel gear (23), the left side of the auxiliary bevel gear is bolted with the axis of the right side of the fan blade wheel, and the surface of the fan blade wheel is rotatably sleeved with the inside of the double-cavity box (1).

5. The computer mainframe dust removal device according to claim 1, wherein the rack frame (6) is composed of a left sliding frame and a rack on the right side of the sliding frame, a sliding groove of the sliding frame is connected with a rear side of the sliding block (5) in a sliding manner, a limiting frame is connected with the rear side of the rack in a sliding manner, the limiting frame is bolted with the double-cavity box (1), teeth of the rack are meshed with teeth of the pinion (7), and the axis of the large helical gear (8) is rotatably connected with the inside of the double-cavity box (1).

6. The computer mainframe dust removal device according to claim 1, wherein the air guide assembly comprises two sealing covers, two hoses, an air suction pipe and two air blowing pipes, the openings on two sides of the double-chamber box (1) are respectively in threaded connection with the two sealing covers, the top ends of the hoses penetrate through holes in the side faces of the sealing covers, the hoses are communicated with the cavities in the top of the double-chamber box (1), and the top ends of the air suction pipe and the air blowing pipes are respectively communicated with the bottom ends of the two hoses.