CN110935693A

CN110935693A - Dust remover for cleaning main board

Info

Publication number: CN110935693A
Application number: CN201911232444.7A
Authority: CN
Inventors: 徐哲; 肖贤建; 庄燕滨; 田国忠; 费贤举; 孟祥莲
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-03-31

Abstract

The invention provides a dust remover for cleaning a main board, which comprises: the dust removing strip is provided with a dust suction block and a dust removing block on one side of the main board; a movable seat is arranged between the dust collection block and the dust removal strip; the dust removal block is provided with a connecting plug; the connecting plug is used for connecting the dust removal block with the air inlet fan; the movable seat is fixedly connected with the dust collection block, the movable seat moves in the guide rail through the roller, a plurality of continuous array ports are arranged on one side of the dust collection strip, which is in contact with the movable seat, the array ports are tangent to each other, and a ventilation piston is arranged in each array port; a vent piston for directionally opening the array port; the invention keeps the main board and the inside of the case clean, thereby keeping the components in the main board running in a higher cleanliness environment, prolonging the service life of the running, and avoiding the damage of the components caused by different powers of the blower when the cover plate is not required to be opened during cleaning.

Description

Dust remover for cleaning main board

Technical Field

The invention relates to the technical field of computers, in particular to a dust remover for cleaning a mainboard.

Background

The computer mainframe has no device which can directly remove dust in the computer mainframe, so that a large amount of dust in the computer mainframe is gathered, and the whole mainboard is covered with dust in serious cases, on one hand, the heat of the central processing unit cannot be dissipated, on the other hand, the dust without holes cannot enter, and the dust which can be electrically adsorbed enters the connection position of the mainboard and the components, so that the operation of the components is influenced, and finally the operation of the mainframe is stopped, generally, for the mainframe which stops operating or is not cleaned for a long time, a ventilation opening and the mainboard are disassembled in a box disassembling mode, the dust is removed under the accelerated blowing of air flow of a blower, and in the actual operation, a certain component in the mainboard is damaged due to the fact that the air flow is not controlled, or the dust is directly blown into the components, so that the mainboard fails, the loss of half of this cleaning approach is difficult to estimate and significant.

At present, a good dust removal mode is not provided in a case, dust is prevented from entering the case only through continuous improvement of a ventilation opening of the case, the purpose of the mode is to evacuate heat in the case, the dust and the heat are not jointly processed, the mode that a fan is installed on the case or a mainboard is only adopted, wind power formed by the fan cannot be well utilized, strong negative pressure cannot be formed in the mode, the dust is absorbed, and if the power of the fan is increased, noise is increased, so that the mode is not a good mode.

Therefore, how to form the dust remover in the case to exchange the air inside and outside without mutual convection, the movable mode of dust removal in the case avoids the condition of single fixed-point dust removal and incapability of comprehensive dust removal, and the reasonable structure and the size are matched with the overall structure of the case, which is the technical problem to be solved by the invention.

Disclosure of Invention

The present invention is directed to a dust remover for cleaning a motherboard, which overcomes or at least partially solves the above problems, so as to solve the problem that the inside of a chassis cannot automatically and actively remove dust.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the invention provides a dust remover for cleaning a main board, which is arranged on a chassis board, wherein the interior of the chassis board is sequentially provided with the main board and a plurality of components, and the dust remover comprises:

the dust removal strip is arranged on the chassis board, the mounting plane of the dust removal strip is parallel to the main board or is on the same plane with the main board, one end of the dust removal strip is provided with a channel pipe, the other end of the channel pipe is connected with an air outlet fan, the air outlet fan is arranged on the outer side of the chassis board, and the dust removal strip is provided with a dust suction block and a dust removal block on one side of the main board;

the dust collection block is close to the dust removal strip, the dust removal block is arranged on the outer side of the dust collection block, and a movable seat is arranged between the dust collection block and the dust removal strip;

the dust removal block is provided with a connecting plug;

the connecting plug is used for connecting the dust removal block with the air inlet fan;

the movable seat is fixedly connected with the dust collection block, the movable seat moves in the guide rail through the roller, a plurality of continuous array ports are arranged on one side of the dust collection strip, which is in contact with the movable seat, the array ports are tangent to each other, and a ventilation piston is arranged in each array port;

a vent piston for directionally opening the array port;

and the guide rails are arranged on two sides of the dust removing strip.

As a further scheme of the invention, the length of the dust removing strip is greater than that of the main board, an inner pipe is arranged in the dust removing strip and communicates one end of the dust removing strip, the central line of the inner pipe is perpendicular to that of the array opening, a limiting block is arranged on the inner side of the edge of the array opening and used for limiting the position of the top disc, and guide rails are arranged on the dust removing strip on the two sides of the array opening.

As a further scheme of the invention, a dust suction cavity is arranged inside the dust suction block, dust inlets are arranged on two sides of the periphery of the dust suction cavity, a communicating hole is arranged on the side wall of the dust suction block perpendicular to the central line of the dust inlet, a hole frame used for mounting a thimble is arranged in the communicating hole, the hole frame is of a support structure with a gap, the thimble is fixedly mounted on the outer side of the central point of the hole frame, the thimble penetrates through a seat hole to be in contact with a top disc, a sealing ring is arranged between the communicating hole and the seat hole, and the sealing ring is used for sealing the dust suction block and the movable seat.

As a further scheme of the invention, a nozzle is arranged on one side of the main board of the dust removal block, a dust removal cavity is arranged in the middle of the dust removal block, and the nozzle is communicated with the outside and the dust removal cavity.

As a further scheme of the invention, a through hole is arranged in the middle of the connecting plug, one end of the connecting plug is connected with a hose, the other end of the hose is connected with a fan frame, one side of the fan frame is provided with an air inlet fan, the other side of the air inlet fan is provided with an air cavity, the hose is connected with the air cavity, and the air inlet fan is arranged in the case plate.

As a further scheme of the invention, the section of the movable seat is of a groove-shaped structure, the bottom of the movable seat is provided with an annular seat hole, a plurality of air holes are formed in the seat hole and used for communicating the array port with the dust suction cavity, a sealing ring is arranged between the seat hole and the array port and used for preventing dust from flowing back to enter the case, rollers are arranged inside two sides of the movable seat, one roller is mounted with the fixed shaft through a bearing, the other roller is connected with the fixed shaft through a rotating shaft key, the rotating shaft penetrates through the sleeve, the other end of the rotating shaft is mounted on the motor, and the rollers are matched with the size of.

As a further scheme of the invention, the vent piston consists of a top disc and a spring, one end of the spring is fixedly arranged on the inner wall of the top of the inner tube, the other end of the spring is fixedly arranged on the top disc, the spring is in a compressed state, the top disc is arranged in the limiting block, and the array port is sealed by the top disc.

As a further scheme of the invention, the guide rail consists of a shaft groove and a wheel groove, the shaft groove is used for installing the fixed shaft and the rotating shaft, and the opening size of the shaft groove is larger than that of the fixed shaft or the rotating shaft.

As a further scheme of the invention, the dust removing strips are arranged on a vertical plane parallel to the main board, the dust removing strips are installed on the chassis board through a supporting frame, and the connecting plug is installed at one end of the dust removing block.

As a further scheme of the invention, the dust removing strips and the main board are arranged on the same vertical plane, the dust removing strips are installed on the chassis board through screws, and the connecting plugs are installed on the side edges of the dust removing blocks.

The invention provides a dust remover for cleaning a main board, which has the beneficial effects that: the invention keeps the main board and the inside of the case clean, thereby keeping the components in the main board running in a higher cleanliness environment, prolonging the service life of the running, and avoiding the damage of the components caused by different powers of the blower when the cover plate is not required to be opened during cleaning; the dust removal strip is used for enabling the dust remover to move around the main plate for removing dust, the movable dust removal block can absorb dust on the periphery, the movable dust removal block can clean the main plate from different angles, so that dust with different adhesive force can be effectively cleaned, and the situation that the amount of dust accumulated at the far end is large and the dust at the near end is relatively clean due to the fixation of the position of the dust removal block is avoided; the dust suction block sucks the dust in the case, particularly around the main board, out of the case through the action of the reverse fan, so as to keep the inner case clean; the movable seat can enable the dust collector to move in the direction of the guide rail through the control of the motor in the machine box.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic view of a simple structure for installing a dust collector provided in embodiment 1 of the present invention.

Fig. 2 is a schematic three-dimensional structure diagram of a dust removal strip provided in the embodiment of the present invention.

Fig. 3 is a schematic cross-sectional structure view of a dust removal strip provided in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a vent piston according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional structure view of the installation of the dust removal strip and the movable seat provided in the embodiment of the present invention.

Fig. 6 is a schematic view of a full-section structure of a plug installation provided in embodiment 1 of the present invention.

Fig. 7 is a schematic view of a simple structure for installing a dust collector provided in embodiment 2 of the present invention.

Fig. 8 is a schematic view of a full-section structure of a plug installation provided in embodiment 2 of the present invention.

In the figure: 1. a chassis board; 11. a main board; 12. a component; 2. a dust removal strip; 21. a passage tube; 22. a fan outlet; 23. a support frame; 24. an array port; 25. a limiting block; 26. an inner tube; 3. a dust absorption block; 31. a dust inlet; 32. a dust suction chamber; 33. a communicating hole; 34. a hole frame; 35. a seal ring; 36. a thimble; 4. a dust removal block; 41. a nozzle; 42. a dust removal cavity; 5. connecting a plug; 51. a hose; 52. a fan frame; 53. a fan inlet; 6. a movable seat; 61. a fixed shaft; 62. a sleeve; 621. a rotating shaft; 622. a motor; 63. a roller; 64. a seat hole; 65. air holes; 71. a top tray; 72. a spring; 8. a guide rail; 81. a shaft groove; 82. a wheel groove.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Example 1

Referring to fig. 1 to 6, a dust remover for cleaning a main board according to an embodiment of the present invention includes a chassis board 1, a main board 11 and a plurality of components 12 are sequentially installed inside the chassis board 1, the plurality of components 12 include a central processing unit, a dust removing bar 2 is disposed on a vertical plane parallel to the main board 11, the dust removing bar 2 is installed on the chassis board 1 through a support frame 23, a channel tube 21 is installed at one end of the dust removing bar 2, the other end of the channel tube 21 is connected with a fan 22, the air outlet fan 22 is disposed on the outer side of the chassis board 1, the dust removing bar 2 is provided with a dust suction block 3 and a dust removal block 4 at one side of the main board 11, the dust suction block 3 and the dust removal block 4 are of an integral structure, the dust suction block 3 is close to the dust removing bar 2, the dust removal block 4 is disposed on the outer side of the dust suction block 3, a connecting plug 5 is installed at a through hole at the, be provided with movable seat 6 between dust absorption piece 3 and the dust removal strip 2, dust absorption piece 3 and movable seat 6 fixed connection, movable seat 6 passes through gyro wheel 63 and removes in guide rail 8, guide rail 8 sets up the both sides at dust removal strip 2, be provided with a plurality of continuous array mouths 24 on the side of dust removal strip 2 and the contact of movable seat 6, tangent between the array mouth 24, all install the piston of ventilating in every array mouth 24, the piston of ventilating is used for directional array mouth 24 of opening, make array mouth 24 and the inside intercommunication of dust absorption piece 3.

The length of the dust removing strip 2 is greater than that of the main board 11, an inner tube 26 is arranged inside the dust removing strip 2, one end of the dust removing strip 2 is communicated with the inner tube 26, the central line of the inner tube 26 is perpendicular to that of the array opening 24, a limiting block 25 is arranged on the inner side of the edge of the array opening 24, the limiting block 25 is used for limiting the position of the top disc 71, and guide rails 8 are arranged on the dust removing strip 2 on two sides of the array opening 24. The dust removal strip 2 is used for enabling the dust remover to remove dust at the periphery of the main board 11, the dust absorption block 3 which moves can absorb the dust at the periphery, the dust removal block 4 which moves can clean the main board 11 from different angles, so that the dust with different adhesive force can be effectively cleaned, the phenomenon that the amount of the dust accumulated at the far end is large and the dust at the near end is relatively clean due to the fixation of the position of the dust removal block 4 is avoided.

A dust suction cavity 32 is arranged in the dust suction block 3, dust inlet openings 31 are arranged on two sides of the periphery of the dust suction cavity 32, a communicating hole 33 is arranged on the side wall of the dust suction block 3 perpendicular to the central line of the dust inlet opening 31, a hole frame 34 used for mounting an ejector pin is arranged in the communicating hole 33, the hole frame 34 is of a support structure with a gap, the ejector pin 36 is fixedly mounted on the outer side of the central point of the hole frame 34, the ejector pin 36 penetrates through a seat hole 64 to be in contact with a top disc 71, a sealing ring 35 is arranged between the communicating hole 33 and the seat hole 64, and the sealing ring 35 is used for sealing the dust suction block 3 and the. The dust suction block 3 sucks the dust in the chassis, particularly the dust around the mainboard, out of the chassis through the action of the reverse fan, and keeps the inner chassis clean.

The dust removal block 4 is provided with a nozzle 41 on one side of the main board, a dust removal cavity 42 is arranged in the middle of the dust removal block 4, the nozzle 41 is communicated with the outside and the dust removal cavity 42, the dust removal cavity 42 collects and pressurizes air in the air, and then removes adsorbed dust on the main board 11 through the acceleration effect of the nozzle 41, the air outlet speed and the air volume can be limited through adjusting the nozzle 41, and different dust can be effectively removed while the main board 11 is protected.

The middle of the connecting plug 5 is provided with a through hole, one end of the connecting plug 5 is connected with a hose 51, the other end of the hose 51 is connected to a fan frame 52, one side of the fan frame 52 is provided with an air inlet fan 53, the other side of the air inlet fan 53 is provided with an air cavity, the hose 51 is connected with the air cavity, and the air inlet fan 53 is arranged inside the case plate 1.

The cross-section of the movable seat 6 is of a groove-shaped structure, the bottom of the movable seat 6 is provided with an annular seat hole 64, a plurality of air holes 65 are formed in the seat hole 64, the air holes 65 are used for communicating the array port 24 and the dust suction cavity 32, a sealing ring 35 is arranged between the seat hole 64 and the array port 24, the sealing ring 35 is used for preventing dust from flowing back to enter the chassis, rollers 63 are arranged inside two sides of the movable seat 6, one of the rollers 63 is mounted with the fixed shaft 61 through a bearing, the other roller 63 is connected with the fixed shaft 61 through a rotating shaft 621 in a key mode, the rotating shaft 621 penetrates through the sleeve 62, the other end of the rotating shaft 621 is mounted on the motor 622, the rollers 63 are matched with the wheel grooves 82 in size, and the movable seat.

The vent piston is composed of a top disc 71 and a spring 72, one end of the spring 72 is fixedly installed on the inner wall of the top of the inner tube 26, the other end of the spring 72 is fixedly installed on the top disc 71, the spring 72 is in a compressed state, the top disc 71 is arranged inside the limiting block 25, and the array opening 24 is sealed by the top disc 71.

The guide rail 8 is composed of a shaft groove 81 and a wheel groove 82, the shaft groove 81 is used for installing the fixing shaft 61 and the rotating shaft 621, and the opening size of the shaft groove 81 is larger than that of the fixing shaft 61 or the rotating shaft 621.

Example 2

Embodiment 2 is different from embodiment 1 in the mounting position of the dusting strips and the manner of dusting.

Referring to fig. 2-5, 7 and 8, a dust remover for cleaning a motherboard according to an embodiment of the present invention includes a chassis board 1, a motherboard 11 and a plurality of components 12 are sequentially installed inside the chassis board 1, the plurality of components 12 include a central processing unit, a dust removal strip 2 and the motherboard 11 are installed on a same vertical plane, the dust removal strip 2 is installed on the chassis board 1 by screws, one end of the dust removal strip 2 is installed with a channel tube 21, the other end of the channel tube 21 is connected with an air outlet fan 22, the air outlet fan 22 is installed outside the chassis board 1, the dust removal strip 2 is provided with a dust absorption block 3 and a dust removal block 4 on one side of the motherboard 11, the dust absorption block 3 and the dust removal block 4 are integrated, the dust absorption block 3 is close to the dust removal strip 2, the dust removal block 4 is installed outside the dust absorption block 3, a connecting plug 5 is installed in a side through hole of the dust removal block 4, the connecting plug 5 is used for connecting the dust removal, be provided with movable seat 6 between dust absorption piece 3 and the dust removal strip 2, dust absorption piece 3 and movable seat 6 fixed connection, movable seat 6 passes through gyro wheel 63 and removes in guide rail 8, guide rail 8 sets up the both sides at dust removal strip 2, be provided with a plurality of continuous array mouths 24 on the side of dust removal strip 2 and the contact of movable seat 6, tangent between the array mouth 24, all install the piston of ventilating in every array mouth 24, the piston of ventilating is used for directional array mouth 24 of opening, make array mouth 24 and the inside intercommunication of dust absorption piece 3.

The length of the dust removing strip 2 is larger than that of the main board 11, the inner tube 26 is arranged inside the dust removing strip 2, one end of the dust removing strip 2 is communicated with the inner tube 26, the central line of the inner tube 26 is perpendicular to that of the array opening 24, the limiting block 25 is arranged on the inner side of the edge of the array opening 24 and used for limiting the position of the top disc 71, and the guide rails 8 are arranged on the dust removing strips 2 on the two sides of the array opening 24. the dust removing strip 2 is used for enabling a dust remover to move around the main board 11 for removing dust, the moving dust collecting block 3 can absorb surrounding dust, and the moving dust collecting block 4 can clean the main board 11 from different angles, so that dust with different adhesive forces can be effectively cleaned, and the condition that the amount of accumulated dust at the far end is large and the dust at the near end is relatively clean due to the fixing of the position of.

This a dust remover for mainboard clearance's theory of operation: the dust absorption block 3 and the dust removal block 4 are of an integrated two-cavity structure, the dust absorption block 3 absorbs heat and dust in the case to the outside of the case, the dust removal block 4 absorbs air filtered by the case into the dust removal cavity 42 through the rotation action of the air inlet fan 53, the air is pressurized in the dust removal cavity 42, accelerated air generated through the acceleration action of the nozzle 41 is blown to the main board 11, dust on the main board 11 is blown to the inside of the case, the air with dust and heat enters the dust absorption cavity 32 from the dust inlet 31, the air pushes away any one ventilation piston through the ejector pin 36 to enable the inside of the case to be communicated with the outside of the case, the air finally flows to the channel pipe 21 through the inner pipe 26, the channel pipe 21 forms negative pressure of air flow in the pipeline through the reverse operation of the air outlet fan 22, and finally the heat and dust carried by the air in the inside are discharged to the outside of the case, the dust removal mode can be used for dust removal, also can be through the program set operation duration, regularly clean the clearance of removing dust, the purpose makes mainboard and quick-witted incasement portion keep clean to components and parts keep moving under the environment of a higher cleanliness in making the mainboard, improve the life-span of operation, open the apron when also need not clearing up, the air-blower causes the damage of components and parts because of the power variation in size.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A dust remover for mainboard clearance, the dust remover is installed on quick-witted boxboard (1), and mainboard (11) and a plurality of components and parts (12) are installed to quick-witted boxboard (1) inside order, its characterized in that includes:

the dust removal strip (2) is installed on the chassis plate (1), the installation plane of the dust removal strip (2) is parallel to the main plate (11) or is on the same plane with the main plate (11), one end of the dust removal strip (2) is provided with a channel pipe (21), the other end of the channel pipe (21) is connected with an air outlet fan (22), the air outlet fan (22) is arranged on the outer side of the chassis plate (1), and the dust removal strip (2) is provided with a dust suction block (3) and a dust removal block (4) on one side of the main plate (11);

the dust collection device comprises a dust collection block (3), wherein the dust collection block (3) is close to a dust collection strip (2), a dust collection block (4) is arranged on the outer side of the dust collection block (3), and a movable seat (6) is arranged between the dust collection block (3) and the dust collection strip (2);

the dust removal device comprises a dust removal block (4), wherein a connecting plug (5) is arranged on the dust removal block (4);

the connecting plug (5), the connecting plug (5) is used for connecting the dedusting block (4) and the air inlet fan (53);

the dust collection device comprises a movable seat (6), wherein the movable seat (6) is fixedly connected with a dust collection block (3), the movable seat (6) moves in a guide rail (8) through a roller (63), a plurality of continuous array ports (24) are formed in one side edge of a dust collection strip (2) which is in contact with the movable seat (6), the array ports (24) are tangent, and a ventilation piston is arranged in each array port (24);

a vent piston for directionally opening the array port (24);

the guide rail (8), guide rail (8) set up the both sides in dust removal strip (2).

2. The dust remover for cleaning the main plate according to claim 1, wherein the length of the dust removing strip (2) is greater than that of the main plate (11), an inner pipe (26) is arranged inside the dust removing strip (2), one end of the dust removing strip (2) is communicated with the inner pipe (26), the central line of the inner pipe (26) is perpendicular to the central line of the array opening (24), a limiting block (25) is arranged on the inner side of the edge of the array opening (24), the limiting block (25) is used for limiting the position of the top plate (71), and guide rails (8) are arranged on the dust removing strip (2) on two sides of the array opening (24).

3. The dust collector for cleaning the main plate according to claim 2, wherein a dust suction cavity (32) is arranged inside the dust suction block (3), dust inlet openings (31) are arranged on two sides of the periphery of the dust suction cavity (32), a communication hole (33) is arranged on the side wall of the dust suction block (3) perpendicular to the central line of the dust inlet openings (31), a hole frame (34) for mounting a thimble is arranged in the communication hole (33), the hole frame (34) is of a support structure with a gap, the thimble (36) is fixedly mounted on the outer side of the central point of the hole frame (34), the thimble (36) penetrates through the seat hole (64) to be in contact with the top disc (71), a sealing ring (35) is arranged between the communication hole (33) and the seat hole (64), and the sealing ring (35) is used for sealing the dust suction block (3) and the movable seat (6).

4. A dust collector for cleaning a main plate according to claim 3, wherein the dust removing block (4) is provided with a nozzle (41) at one side of the main plate, a dust removing cavity (42) is arranged in the middle of the dust removing block (4), and the nozzle (41) is communicated with the dust removing cavity (42) from the outside.

5. The dust collector for cleaning the main board according to claim 4, wherein a through hole is arranged in the middle of the connecting plug (5), one end of the connecting plug (5) is connected with a hose (51), the other end of the hose (51) is connected to the fan frame 52, one side of the fan frame 52 is provided with a fan inlet (53), the other side of the fan inlet (53) is provided with an air cavity, the hose (51) is connected with the air cavity, and the fan inlet (53) is arranged inside the case board (1).

6. The dust remover for cleaning the main board according to claim 5, wherein the section of the movable seat (6) is of a groove-shaped structure, the bottom of the movable seat (6) is provided with an annular seat hole (64), a plurality of air holes (65) are formed in the seat hole (64), the air holes (65) are used for communicating the array port (24) with the dust suction cavity (32), a sealing ring (35) is arranged between the seat hole (64) and the array port (24), the sealing ring (35) is used for preventing dust from flowing back to enter a case, rollers (63) are arranged inside two sides of the movable seat (6), one of the rollers (63) and the fixed shaft (61) are mounted through a bearing, the other roller (63) is connected through a rotating shaft (621) in a key mode, the rotating shaft (621) penetrates through the sleeve (62), the other end of the rotating shaft (621) is mounted on the motor (622), and the rollers (63) are matched with the wheel groove (82) in size.

7. A dust catcher for cleaning of main plates according to claim 6, characterized in that the venting piston consists of a top disc (71) and a spring (72), one end of the spring (72) is fixedly mounted on the top inner wall of the inner tube (26), the other end of the spring (72) is fixedly mounted on the top disc (71), the spring (72) is in a compressed state, the top disc (71) is arranged inside the stopper (25), and the top disc (71) seals the array port (24).

8. A dust collector for cleaning main boards according to claim 7, wherein the guide rail (8) is composed of a shaft groove (81) and a wheel groove (82), the shaft groove (81) is used for installing the fixing shaft (61) and the rotating shaft (621), and the opening size of the shaft groove (81) is larger than the size of the fixing shaft (61) or the rotating shaft (621).

9. The dust collector for cleaning the main plate as claimed in claim 8, wherein the dust removing strips (2) are arranged on parallel vertical planes of the main plate (11), the dust removing strips (2) are installed on the chassis plate (1) through a supporting frame 23, and the connecting plug (5) is installed at one end of the dust removing block (4).

10. A dust collector for cleaning main boards according to claim 8, wherein the dust removing strips (2) are arranged on the same vertical plane with the main boards (11), the dust removing strips (2) are installed on the chassis board (1) through screws, and the connecting plugs (5) are installed on the side edges of the dust removing blocks (4).