CN107831847A

CN107831847A - A kind of good main frame of anti-dust performance

Info

Publication number: CN107831847A
Application number: CN201710980504.8A
Authority: CN
Inventors: 刘华英
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-19
Filing date: 2017-10-19
Publication date: 2018-03-23

Abstract

The invention discloses a kind of good main frame of anti-dust performance, including casing, the inwall of casing is fixedly connected with puigging, the inwall of puigging is fixedly connected with dust layer, and exhaust fan is fixedly connected with the gas outlet of casing side, and the outer wall of exhaust fan is fixedly connected with Air Filter, the middle part of bottom half, which is run through, is connected with the first annulus post, the inwall fixed cover of first annulus post is connected to adsorption layer, and the inwall fixed cover of the first annulus post is connected to filter layer, and filter layer is located at the bottom of adsorption layer.The good main frame of the anti-dust performance, pass through the cooperation between dust layer, Air Filter, the first annulus post, adsorption layer and filter layer, it can ensure that dust will not enter computer mainframe internal, can be in the case where ensureing the good radiating of main frame, dust is all kept off in the outside of main frame, ensure the clean of computer mainframe internal, improve the radiating effect of computer mainframe internal part, improve the service life of main frame.

Description

A kind of good main frame of anti-dust performance

Technical field

The present invention relates to computer equipment technical field, the good main frame of specially a kind of anti-dust performance.

Background technology

Main frame refers to that computer removes the major body part beyond input-output equipment, and for placing master The control casing of plate and other critical pieces, generally include CPU, internal memory, hard disk, CD-ROM drive, power supply and other input and output controls Device and interface processed, main frame belong to the most important component devices of computer-internal, if main frame damages computer Just can not work.

Main frame is exactly the brain of computer, computer is carried out the operation such as computing, storage and change, meter Calculate machine host to be easy to generate heat when in use, therefore main frame needs to radiate to it at work, current calculating Machine host causes computer mainframe internal to easily enter dust because the heat emission hole of design is unreasonable, and these dusts are attached to meter Calculate on the part and circuit inside machine host, the radiating effect of computer mainframe internal part, and too many dust can be reduced Easily make internal wiring and part short circuit, cause main frame to damage, reduce the service life of main frame.

The content of the invention

(1) technical problem solved

In view of the shortcomings of the prior art, the invention provides a kind of good main frame of anti-dust performance, possess dust All gear will not cause part and line short etc. in the outside of main frame, guarantee computer mainframe internal because of dust Advantage, solve computer-internal and be easily accessible dust, cause computer-internal part and line short, so that computer The problem of main frame damages.

(2) technical scheme

To achieve the above object, the present invention provides following technical scheme：A kind of good main frame of anti-dust performance, including Casing, the inwall of the casing are fixedly connected with puigging, and the inwall of the puigging is fixedly connected with dust layer, the casing Exhaust fan is fixedly connected with the gas outlet of side, the outer wall of the exhaust fan is fixedly connected with Air Filter, the bottom half Middle part through being connected with the first annulus post, the first fix bar, institute are fixedly connected with the top of the inwall of the first annulus post The bottom for stating the first fix bar is fixedly connected with motor, and one end of the motor output shaft is fixedly connected with fan, described The inwall fixed cover of first annulus post is connected to adsorption layer, and the adsorption layer is located at the bottom of fan, the first annulus post it is interior Wall fixed cover is connected to filter layer, and the filter layer is located at the bottom of adsorption layer, the top of the filter layer and the bottom of adsorption layer It is fixedly connected by head rod, the second connecting rod, second connection is fixedly connected with the middle part of the filter layer bottom The bottom of bar is fixedly connected with the second fix bar, and second fix bar is fixed on the bottom of the first annulus post.

The bottom of the cabinet wall is fixedly connected with two support columns, the equal pivot bush unit of outer wall of two support columns There is a sleeve, the equal movable sleeves of outer wall of two support columns is connected to the first spring, and the first spring is located at the bottom of sleeve, two Fixed block has been fixedly connected with the inside of the sleeve outer wall, has been fixedly connected between two fixed blocks by placing plate, institute The inside for stating placement plate offers heat emission hole, and the first fixed plate is fixedly connected with the top of the placement plate.

Side of the casing away from exhaust fan is fixedly connected with supporting plate, and the bottom of the supporting plate passes through second spring The second fixed plate is fixedly connected with, fixed column, the bottom of the fixed column are fixedly connected with the middle part of the second fixed plate bottom End is connected with movable pulley by axis of rotation, and the internal activity of the second spring is socketed with expansion link, the top of the expansion link Portion is fixedly connected on the bottom of supporting plate, and the bottom of the expansion link is fixed on the top of the second fixed plate, the support bar Top is fixedly connected with the second annulus post, and the internal activity of the second annulus post is socketed with cylinder, outside the second annulus post Through nut is connected with, the internal whorl of the nut is socketed with threaded rod for the side inner chamber of wall.

Preferably, the outside of the Air Filter is provided with protective plate, and the protective plate is fixedly connected on casing by pillar Outer wall, the quantity of the pillar is two.

Preferably, limited block is fixedly connected with the top of the support column, the limited block is located at the top of sleeve.

Preferably, the bottom of the limited block is fixedly connected with valve rubber, and the valve rubber is annular, the valve rubber Size be adapted with the size of limited block, and valve rubber is located at the top of sleeve.

Preferably, the both sides of the sleeve lining have been fixedly connected with two rollers, and the size of four rollers is homogeneous Cause.

Preferably, the length of the second annulus post and the equal length of cylinder, and the second annulus column wall diameter is big It is small to be adapted with the size of body diameter.

Preferably, pull handle is fixedly connected with the top of the cylinder, the pull handle is located at the second annulus post Top.

Preferably, one end of the threaded rod is fixedly connected with slipmat, the size of the protective pad and threaded rod it is big It is small to be adapted, and slipmat is located at the inside of the second annulus post.

Preferably, the one end of the threaded rod away from slipmat is fixedly connected with swing handle, and the swing handle is located at The outside of second annulus post.

Preferably, the bottom of the casing is fixedly connected with supporting leg, and the quantity of the supporting leg is two, described in two Supporting leg is symmetrically distributed in the both sides of bottom half.

(3) beneficial effect

Compared with prior art, the invention provides a kind of good main frame of anti-dust performance, possess following beneficial to effect Fruit：

1st, the good main frame of the anti-dust performance, it can ensure that dust will not connect from main frame by dust layer Enter computer mainframe internal in the space at place, Air Filter can ensure that dust will not enter in main frame at exhaust fan Portion, the cooperation between the first annulus post, adsorption layer and filter layer, it is ensured that dust will not enter meter at the first annulus post Calculate inside machine host, so can all keep off dust in main frame in the case where ensureing the good radiating of main frame Outside, ensure the clean of computer mainframe internal, improve the radiating effect of computer mainframe internal part, improve main frame Service life.

2nd, the good main frame of the anti-dust performance, by head rod, the second connecting rod and the second fix bar it Between cooperation, the second fix bar can be pulled out downwards after the much time using main frame, so as to by filter layer and absorption Layer takes out and cleaned, and is so easy to the cleaning to filter layer and adsorption layer, and people is made in cleaning main frame will not The too many time is wasted, saves the time of people, improves the speed of cleaning.

3rd, the good main frame of the anti-dust performance, by between exhaust fan, the first fix bar, motor and fan Coordinating, exhaust fan rotates the circulation rate that can improve computer mainframe internal and main frame extraneous air with fan, The radiating rate of main frame is improved, ensures that the temperature of computer-internal will not be too high, so as to reduce computer mainframe internal The loss of part, improve the service life of main frame.

4th, the good main frame of the anti-dust performance, supporting plate, movable pulley, the second annulus post, cylinder and pulling are passed through Cooperation between handle, when needing mobile computing machine host, holding pull handle makes movable pulley land, and then pulls handle Just stretchy main frame moves hand, and so being not required to very important person when flat mobile has or carry main frame in arms, not only The movement to main frame is facilitated, and substantial amounts of strength is saved during main frame in movement.

5th, the good main frame of the anti-dust performance, by supporting plate, second spring, the second fixed plate and expansion link it Between cooperation, when by movable pulley mobile computing machine host, the vibrations that second spring can be when will be mobile are preferably minimized, and are ensured Main frame is stability when mobile, ensures acutely rock during main frame movement, must expire in main frame The part in portion improves the service life of main frame because vibrations damage.

Brief description of the drawings

Fig. 1 is a kind of positive structure diagram of the good main frame of anti-dust performance proposed by the present invention；

Fig. 2 is the side view structure of the first annulus post in a kind of good main frame Fig. 1 of anti-dust performance proposed by the present invention Schematic diagram；

Fig. 3 is the plan structure signal that plate is placed in a kind of good main frame Fig. 1 of anti-dust performance proposed by the present invention Figure；

Fig. 4 is close-up schematic view at the A in a kind of good main frame Fig. 1 of anti-dust performance proposed by the present invention；

Fig. 5 is close-up schematic view at the B in a kind of good main frame Fig. 1 of anti-dust performance proposed by the present invention.

In figure：1 casing, 2 puiggings, 3 dust layers, 4 exhaust fans, 5 Air Filters, 6 pillars, 7 protective plates, 8 first annulus posts, 9 first fix bars, 10 motor, 11 fans, 12 adsorption layers, 13 head rods, 14 filter layers, 15 second connecting rods, 16 Two fix bars, 17 support columns, 18 sleeves, 19 rollers, 20 limited blocks, 21 valve rubbers, 22 first springs, 23 fixed blocks, 24 are placed Plate, 25 heat emission holes, 26 first fixed plates, 27 supporting plates, 28 second springs, 29 second fixed plates, 30 fixed columns, 31 rotating shafts, 32 Movable pulley, 33 expansion links, 34 second annulus posts, 35 cylinders, 36 pull handles, 37 nuts, 38 threaded rods, 39 slipmat, 40 turns Dynamic handle, 41 supporting legs.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Fig. 1-5, a kind of good main frame of anti-dust performance, including casing (1) are referred to, the bottom of casing (1) is fixed Supporting leg (41) is connected with, sets supporting leg (41) that the bottom of casing (1) can be avoided directly to be contacted with ground, prevents casing (1) bottom, which makes moist, gets rusty, and reduces the loss of casing (1), improves the service life of casing (1), the quantity of supporting leg (41) For two, two supporting legs (41) are symmetrically distributed in the both sides of casing (1) bottom, set two supporting legs (41) to improve case The stability of body (1), ensure that casing (1) will not rock, the inwall of casing (1) is fixedly connected with puigging (2), puigging (2) The soundproof effect of main frame can be improved, reduces noise caused by main frame, the inwall of puigging (2) is fixedly connected There is dust layer (3), dust layer (3) can ensure that dust will not float into main frame from the gap of main frame junction Portion, the dust-proof effect of main frame is improved, exhaust fan (4), exhaust fan are fixedly connected with the gas outlet of casing (1) side (4) the internal high-temperature gas of casing (1) can be discharged to the outside of casing (1), the outer wall of exhaust fan (4) is fixedly connected with dust-proof Net (5), Air Filter (5) dust can be avoided to enter from exhaust fan (4) casing (1) is internal, the outside of Air Filter (5) is provided with anti- Backplate (7), protective plate (7) are fixedly connected on the outer wall of casing (1) by pillar (6), and the quantity of pillar (6) is two, protection Plate (7) can protect exhaust fan (4) without damage, improve the service life of exhaust fan (4), the middle part of casing (1) bottom is run through The first annulus post (8) is connected with, the first fix bar (9) is fixedly connected with the top of the inwall of the first annulus post (8), first fixes The bottom of bar (9) is fixedly connected with motor (10), and one end of motor (10) output shaft is fixedly connected with fan (11), electronic Machine (10) drives fan (11) to rotate, and can pass through exhaust so that the outside cold air of casing (1) to be sucked to the inside of casing (1) Cooperation between fan (4), the first fix bar (9), motor (10) and fan (11), exhaust fan (4) rotate with fan (11) The circulation rate of computer mainframe internal and main frame extraneous air can be improved, improves the radiating speed of main frame Degree, ensures that the temperature of computer-internal will not be too high, so as to reduce the loss of computer mainframe internal part, improves and calculates owner The service life of machine, the inwall fixed cover of the first annulus post (8) are connected to adsorption layer (12), and adsorption layer (12) is located at fan (11) Bottom, the inwall fixed cover of the first annulus post (8) are connected to filter layer (14), and filter layer (14) is located at the bottom of adsorption layer (12), Adsorption layer (12) and filter layer (14) can come out the filtering dust in air, prevent dust from entering casing with air (1) inside, it can ensure that dust will not enter from the space of main frame junction by dust layer (3) and calculate owner Inside machine, Air Filter (5) can ensure that dust will not enter computer mainframe internal, the first annulus post from exhaust fan (4) (8), the cooperation between adsorption layer (12) and filter layer (14), it is ensured that dust will not enter from the first annulus post (8) Computer mainframe internal, so dust can be all kept off in main frame in the case where ensureing main frame good radiating Outside, ensure the clean of computer mainframe internal, improve the radiating effect of computer mainframe internal part, improve and calculate owner The service life of machine, the top of filter layer (14) are fixedly connected with the bottom of adsorption layer (12) by head rod (13), mistake The second connecting rod (15) is fixedly connected with the middle part of filtering layer (14) bottom, the bottom of the second connecting rod (15) is fixedly connected with second Fix bar (16), the second fix bar (16) are fixed on the bottom of the first annulus post (8), and the second fix bar (16) can be from the first circle The bottom of annulated column (8) is pulled down, and passes through matching somebody with somebody between head rod (13), the second connecting rod (15) and the second fix bar (16) Close, the second fix bar (16) can be pulled out downwards after the much time using main frame, so as to by filter layer (14) and inhale Attached layer (12) is taken out and cleaned, and is so easy to the cleaning to filter layer (14) and adsorption layer (12), people is counted in cleaning Calculating machine host makes that the too many time will not be wasted, and saves the time of people, improves the speed of cleaning.

The bottom of casing (1) inwall is fixedly connected with two support columns (17), and the outer wall of two support columns (17) is movable Sleeve (18) is socketed with, the both sides of sleeve (18) inwall have been fixedly connected with two rollers (19), the size of four rolling (19) Consistent, roller (19) makes sleeve (18) more flexible when the outer wall of support column (17) moves up and down, and four rolling (19) can Stability during ensureing that sleeve (18) moves up and down, the equal movable sleeve of outer wall of two support columns (17) are connected to the first spring (22), the mobile caused vibrations of casing (1) can be preferably minimized by the first spring (22), and the first spring (22) is located at sleeve (18) bottom, fixed block (23) has been fixedly connected with the inside of two sleeve (18) outer walls, has been led between two fixed blocks (23) Cross placement plate (24) to be fixedly connected, the inside for placing plate (24) offers heat emission hole (25), and heat emission hole (25) facilitates the stream of air It is logical, place and the first fixed plate (26) is fixedly connected with the top of plate (24), the first fixed plate (26) is convenient in main frame The fixation of portion's part, limited block (20) is fixedly connected with the top of support column (17), limited block (20) is located at the top of sleeve (18) Portion, limited block (20) can avoid sleeve (18) from moving up excessively, cause sleeve (18) to depart from support column (17), limited block (20) bottom is fixedly connected with valve rubber (21), and valve rubber (21) is annular, the size and limited block of valve rubber (21) (20) size is adapted, and valve rubber (21) is located at the top of sleeve (18), valve rubber (21) can avoid sleeve (18) with Limited block (20) directly contacts, and prevents the damage of sleeve (18) and limited block (20), improves sleeve (18) and limited block (20) Service life.

Side of the casing (1) away from exhaust fan (4) is fixedly connected with supporting plate (27), and the bottom of supporting plate (27) passes through the Two springs (28) are fixedly connected with the second fixed plate (29), and fixed column is fixedly connected with the middle part of the second fixed plate (29) bottom (30), the bottom of fixed column (30) is rotatably connected to movable pulley (32), the internal activity of second spring (28) by rotating shaft (31) Expansion link (33) is socketed with, telescopic (33) can limit the moving direction of the second fixed plate (29), avoid the second fixed plate (29) rock, the bottom of supporting plate (27) is fixedly connected at the top of expansion link (33), the bottom of expansion link (33) is fixed on The top of two fixed plates (29), by supporting plate (27), second spring (28), the second fixed plate (29) and expansion link (33) it Between cooperation, when by movable pulley (32) mobile computing machine host, the vibrations that second spring (28) can be when will be mobile drop to Minimum, main frame is stability when ensure that mobile, ensures acutely rock during main frame movement, must completely calculate Part inside machine host improves the service life of main frame because vibrations damage, and the top of support bar (27), which is fixed, to be connected The second annulus post (34) is connected to, the internal activity of the second annulus post (34) is socketed with cylinder (35), the length of the second annulus post (34) The equal length of degree and cylinder (35), and the size of second annulus post (34) inner diameter and the size of cylinder (35) diameter are mutually fitted Match somebody with somebody, such setting can improve the collapsing length of cylinder (35), ensure to adapt to the use of each height people, the top of cylinder (35) Portion is fixedly connected with pull handle (36), and pull handle (36) is located at the top of the second annulus post (34), pull handle (36) side Persons who happens to be on hand for an errand pull cylinder (35), and the side inner chamber of second annulus post (34) outer wall, which is run through, is connected with nut (37), nut (37) Internal whorl is socketed with threaded rod (38), and one end of threaded rod (38) is fixedly connected with slipmat (39), protective pad (39) it is big The small size with threaded rod (38) is adapted, and slipmat (39) is located at the inside of the second annulus post (34), and slipmat (39) can To improve the frictional force between threaded rod (38) and cylinder (35), the one end of threaded rod (38) away from slipmat (39) is fixedly connected There is swing handle (40), swing handle (40) is located at the outside of the second annulus post (34), and swing handle (40) is convenient for people to rotate Threaded rod (38), pass through supporting plate (27), movable pulley (32), the second annulus post (34), cylinder (35) and pull handle (36) Between cooperation, when needing mobile computing machine host, holding pull handle (36) makes movable pulley (32) land, then pull draw Just stretchy main frame moves dynamic handle (36), and so being not required to very important person when flat mobile has or carry calculating owner in arms Machine, the movement to main frame is not only facilitated, and substantial amounts of strength is saved during main frame in movement.

The electric elements occurred in this article electrically connect with the main controller and 220V civil powers in the external world, and main controller can be meter Calculation machine etc. plays the conventionally known equipment of control.

When in use, exhaust fan (4) rotates simultaneously with fan (11), and fan (11) sucks the outside air of casing (1) The internal air of casing (1) is discharged to the outside of casing (1), accelerates casing (1) interior outer space by the inside of casing (1), exhaust fan (4) The circulation rate of gas, it is dust layer (3), dust-proof when casing (1) inner air and outer air circulates so as to take away the internal heat of casing (1) (12) net (5), adsorption layer filter layers (14) can be by the dust gears in air in the outside of casing (1), when adsorption layer (12) And after filter layer (14) is stained with dust, the second fix bar (16) can be downwardly drawn out, so as to place's adsorption layer (12) and mistake Filtering layer (14) is cleaned, and during if necessary to mobile computing machine host, turns on threaded rod (38), and it is outside to hold pull handle (36) Cylinder (35) is extracted, is adjusted to oneself suitable length, is turned threaded rod (38) and cylinder (35) position is fixed, Ran Houyi Driving wheel (32) lands, and pulls pull handle (36), can mobile computing machine host, and second spring (28) plus expansion link when moving (33) vibrations can be preferably minimized, protection main frame is injury-free.

In summary, the good main frame of the anti-dust performance, it can ensure that dust will not be from calculating by dust layer (3) Enter computer mainframe internal in the space of machine host junction, Air Filter (5) can ensure that dust will not be from exhaust fan (4) Into computer mainframe internal, the cooperation between the first annulus post (8), adsorption layer (12) and filter layer (14), it is ensured that Dust will not enter computer mainframe internal from the first annulus post (8), can so be dissipated ensureing that main frame is good Under heat, dust is all kept off in the outside of main frame, ensures the clean of computer mainframe internal, improves in main frame The radiating effect of portion's part, improve the service life of main frame.

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims

1. a kind of good main frame of anti-dust performance, including casing (1), it is characterised in that：The inwall of the casing (1) is fixed Puigging (2) is connected with, the inwall of the puigging (2) is fixedly connected with dust layer (3), the outlet of casing (1) side Exhaust fan (4) is fixedly connected with mouthful, the outer wall of the exhaust fan (4) is fixedly connected with Air Filter (5), casing (1) bottom It is solid to be fixedly connected with first through the first annulus post (8) is connected with for the middle part in portion at the top of the inwall of the first annulus post (8) Fixed pole (9), the bottom of the first fix bar (9) are fixedly connected with motor (10), and one end of motor (10) output shaft is consolidated Surely fan (11) is connected with, the inwall fixed cover of the first annulus post (8) is connected to adsorption layer (12), adsorption layer (12) position In the bottom of fan (11), the inwall fixed cover of the first annulus post (8) is connected to filter layer (14), filter layer (14) position In the bottom of adsorption layer (12), the top of the filter layer (14) is solid by head rod (13) with the bottom of adsorption layer (12) It is fixed to connect, the second connecting rod (15) is fixedly connected with the middle part of filter layer (14) bottom, second connecting rod (15) Bottom is fixedly connected with the second fix bar (16), and second fix bar (16) is fixed on the bottom of the first annulus post (8)；

The bottom of casing (1) inwall is fixedly connected with two support columns (17), and the outer wall of two support columns (17) is movable Sleeve (18) is socketed with, the equal movable sleeve of outer wall of two support columns (17) is connected to the first spring (22), and the first spring (22) it is located at the bottom of sleeve (18), has been fixedly connected with fixed block (23) on the inside of two sleeve (18) outer walls, two It is fixedly connected between the fixed block (23) by placing plate (24), the inside for placing plate (24) offers heat emission hole (25), it is fixedly connected with the first fixed plate (26) at the top of the placement plate (24)；

Side of the casing (1) away from exhaust fan (4) is fixedly connected with supporting plate (27), and the bottom of the supporting plate (27) leads to Cross second spring (28) and be fixedly connected with the second fixed plate (29), be fixedly connected with the middle part of the second fixed plate (29) bottom Fixed column (30), the bottom of the fixed column (30) are rotatably connected to movable pulley (32), the second spring by rotating shaft (31) (28) internal activity is socketed with expansion link (33), and the bottom of supporting plate (27) is fixedly connected at the top of the expansion link (33) Portion, the bottom of the expansion link (33) are fixed on the top of the second fixed plate (29), and the top of the support bar (27), which is fixed, to be connected The second annulus post (34) is connected to, the internal activity of the second annulus post (34) is socketed with cylinder (35), the second annulus post (34) through nut (37) is connected with, the internal whorl of the nut (37) is socketed with threaded rod (38) for the side inner chamber of outer wall.

A kind of 2. good main frame of anti-dust performance according to claim 1, it is characterised in that：The Air Filter (5) Outside be provided with protective plate (7), the protective plate (7) is fixedly connected on the outer wall of casing (1), the branch by pillar (6) The quantity of post (6) is two.

A kind of 3. good main frame of anti-dust performance according to claim 1, it is characterised in that：The support column (17) Top be fixedly connected with limited block (20), the limited block (20) is located at the top of sleeve (18).

A kind of 4. good main frame of anti-dust performance according to claim 1 or 3, it is characterised in that：The limited block (20) bottom is fixedly connected with valve rubber (21), and the valve rubber (21) is annular, the size of the valve rubber (21) with The size of limited block (20) is adapted, and valve rubber (21) is located at the top of sleeve (18).

A kind of 5. good main frame of anti-dust performance according to claim 1, it is characterised in that：In the sleeve (18) The both sides of wall have been fixedly connected with two rollers (19), and the size of four rollers (19) is consistent.

A kind of 6. good main frame of anti-dust performance according to claim 1, it is characterised in that：The second annulus post (34) length and the equal length of cylinder (35), and the size of second annulus post (34) inner diameter and cylinder (35) diameter Size is adapted.

A kind of 7. good main frame of anti-dust performance according to claim 1, it is characterised in that：The cylinder (35) Top is fixedly connected with pull handle (36), and the pull handle (36) is located at the top of the second annulus post (34).

A kind of 8. good main frame of anti-dust performance according to claim 1, it is characterised in that：The threaded rod (38) One end be fixedly connected with slipmat (39), the size of the protective pad (39) is adapted with the size of threaded rod (38), and anti- Skidding (39) is located at the inside of the second annulus post (34)；The one end of the threaded rod (38) away from slipmat (39) is fixedly connected with Swing handle (40), the swing handle (40) are located at the outside of the second annulus post (34)；The bottom of the casing (1), which is fixed, to be connected Supporting leg (41) is connected to, the quantity of the supporting leg (41) is two, and two supporting legs (41) are symmetrically distributed in casing (1) The both sides of bottom.

A kind of 9. application method of the good main frame of anti-dust performance according to claim 1, it is characterised in that：Make Used time, exhaust fan (4) are rotated simultaneously with fan (11), and the outside air of casing (1) is sucked the interior of casing (1) by fan (11) The internal air of casing (1) is discharged to the outside of casing (1) by portion, exhaust fan (4), accelerates the circulation speed of casing (1) inner air and outer air Degree, so as to take away the internal heat of casing (1), when casing (1) inner air and outer air circulates, dust layer (3), Air Filter (5), absorption (12) filter layer (14) of layer can be by the dust gear in air in the outside of casing (1), when adsorption layer (12) and filter layer (14) after being stained with dust, the second fix bar (16) can be downwardly drawn out, so as to enter with place's adsorption layer (12) and filter layer (14) Row cleaning, during if necessary to mobile computing machine host, turns on threaded rod (38), holds pull handle (36) and outwards extract cylinder (35), adjust to oneself suitable length, turn threaded rod (38) and cylinder (35) position is fixed, then movable pulley (32) Land, pull pull handle (36), can mobile computing machine host, and second spring (28) plus expansion link (33) can be with when moving Vibrations are preferably minimized, protection main frame is injury-free.