CN209680701U - A kind of closed main frame dust-extraction unit - Google Patents
A kind of closed main frame dust-extraction unit Download PDFInfo
- Publication number
- CN209680701U CN209680701U CN201822208597.5U CN201822208597U CN209680701U CN 209680701 U CN209680701 U CN 209680701U CN 201822208597 U CN201822208597 U CN 201822208597U CN 209680701 U CN209680701 U CN 209680701U
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- fixed
- dust
- air inlet
- air
- communicated
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Abstract
The utility model discloses a kind of closed main frame dust-extraction units, guide rail mounting groove is offered on bottom plate, sliding is provided with guide rail in guide rail mounting groove, the top of guide rail is fixed with slide, the bottom end of slide is fixed with nut block, lead screw is provided in nut block, one end of lead screw is fixed with limited block two, and the other end of lead screw passes through fixing sleeve and is fixed with handle；Gas motor is fixed in slide, the output shaft of gas motor passes through guide sleeve and is fixedly connected with oval rotating seat, and wherein guide sleeve is fixed on the top of slide；It is fixed with air pump on supporting leg below support plate, snorkel one and snorkel two are provided on air pump, snorkel one is connected to the air inlet of gas motor by steam hose；Guide groove is also provided on bottom plate, sliding is provided with column in guide groove, and fumarole is offered in column, and fumarole is communicated with nozzle, and fumarole is also communicated with air inlet pipe, and air inlet pipe is connected to snorkel two by air induction hose.The utility model has the beneficial effects that cleaning effect is good.
Description
Technical field
The utility model relates to main frame dedusting technology fields, more specifically, being related to a kind of closed computer
Host dust-extraction unit.
Background technique
With the continuous development of information-based science and technology, computer is widely used in the production and living of people, people
Routine office work and amusement also be unable to do without computer.During routine use computer, it can be accumulated in main frame
Dust easily causes short circuit or scaling loss so that the heat dissipation performance of main frame is deteriorated, and influences the normal of computer
It uses.This allows for people in use for some time, needs to open main frame, clears up the dust of the inside；In cleaning ash
Time-consuming and laborious when dirt, the effect of cleaning is poor, and dust can descend slowly and lightly everywhere, be also easy to make a mess of in scale removal process
Electronic component, therefore a kind of main frame dust-extraction unit of urgent need, to reach dust in easily cleaning main frame
Effect.
Summary of the invention
For disadvantages described above, the utility model provides a kind of closed main frame dust-extraction unit, to solve existing
Dust does not allow the problem of easy to clean in main frame.
To achieve the above object, the utility model uses following technical scheme:
A kind of closed main frame dust-extraction unit, including support plate and supporting leg；The bottom end of the support plate is fixed with
Supporting leg, the top of support plate are fixed with dust cover, are fixed with bottom plate in the support plate in dust cover；The dust cover front end side wall
Upper end transparent cover plate is hinged with by hinge one, the lower end of transparent cover plate is detachably mounted to dust cover by fixing screws
Front end side wall on, dust cover is communicated with connection pipe of dust collector, and connection pipe of dust collector is connected to dust catcher；It is opened up on the bottom plate
There is guide rail mounting groove, sliding is provided with guide rail in guide rail mounting groove, and the top of guide rail is fixed with slide, and the bottom end of slide is fixed with
Nut block, nut block are arranged between two guide rails, and lead screw is provided in nut block, and lead screw is connect by screw thread with nut block,
Wherein lead screw is arranged in guide rail mounting groove；One end of the lead screw is fixed with limited block two, and the other end of lead screw, which passes through, to be fixed
Set is fixed with handle, and fixing sleeve is fixed in guide rail mounting groove, and limited block one is fixed on the lead screw at fixing sleeve both ends；The cunning
Gas motor is fixed in seat, the output shaft of gas motor passes through guide sleeve and is fixedly connected with oval rotating seat, and wherein guide sleeve is solid
It is scheduled on the top of slide, wherein the lower end of oval rotating seat is arranged in guide sleeve；It is solid on supporting leg below the support plate
Surely there is air pump, snorkel one and snorkel two are provided on air pump, is respectively arranged with steam supply valve on snorkel one and snorkel two
Door one and air-supplying valve two, Center Vent tube one are connected to the air inlet of gas motor by steam hose；It is also opened up on the bottom plate
There is guide groove, sliding is provided with column in guide groove, and the upper end of column is arranged in the groove opened up on spring case, on spring case
One end in the groove opened up far from column is fixed with spring stop, spring is connected between spring stop and column, spring is set
It sets in the groove opened up on spring case；Fumarole is offered in the column, fumarole is communicated with nozzle, and nozzle setting is being leaned on
On the column of nearly ellipse rotating seat side, fumarole is also communicated with air inlet pipe, and air inlet pipe is connected to snorkel by air induction hose
Two.
Further, it is fixed with support base on the column below the nozzle, support base is connected with idler wheel by connecting shaft, rolling
Wheel is contacted with oval rotating seat.
Further, gas motor gas outlet is communicated with gas motor escape pipe, and the other end of gas motor escape pipe is communicated with
The air inlet one opened up in guide sleeve, the other end of air inlet one are communicated with the air slot opened up in oval rotating seat, air guide
Slot passes through the air inlet two opened up in oval rotating seat and is connected to inlet pipe connection, and inlet pipe connection is communicated with flexible tracheae, stretches
The other end of contracting tracheae is communicated with the elevator air inlet pipe being arranged on elevator, opened up in elevator air inlet pipe and elevator into
Air duct connection, air inlet duct are communicated with the mounting groove opened up in elevator, installation axle are fitted in mounting groove, is provided in installation axle
Impeller；The both ends of the installation axle are provided with rubber wheel, and rubber wheel is arranged in the roller mounting slot opened up in elevator, idler wheel
Elevating lever is also fitted in mounting groove, elevating lever is contacted with rubber wheel, and rubber wheel compresses elevating lever；The top of the elevating lever is solid
Surely there is scotch, arc groove is offered on the elevating lever below scotch, the bottom end of elevating lever is fixed on oval rotating seat
Top；Dust-proof plate placing groove is offered on oval rotating seat below the elevator, is fixed in dust-proof plate placing groove
Dust-proof plate is connected between dust-proof plate and dust-proof plate by hinge two, and the dust-proof plate and fixed hinge seat of the top are hinged, fixed hinge
Joint chair is fixed on the bottom end of elevator；The exhaust passage opened up in the mounting groove and elevator is connected to, and the air outlet of exhaust passage is set
It sets on the right side of fixed hinge seat.
The utility model has the following beneficial effects: it is easy to use, it can effectively obstruct and facilitate in dump host
Dust；Cleaning effect is good, will not damage to the electronic component in main frame, it is ensured that people being capable of normal use
Computer.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of closed main frame dust-extraction unit described in the utility model；
Fig. 2 is the partial enlarged view at Figure 1A；
Fig. 3 is the partial enlarged view at Figure 1B；
Fig. 4 is the partial structural diagram of the utility model；
Fig. 5 is the partial enlarged view at Fig. 4 C；
Fig. 6 is the partial enlarged view at Fig. 5 D；
Fig. 7 is the partial enlarged view at Fig. 5 E；
Fig. 8 is the partial enlarged view at Fig. 7 F；
Fig. 9 is the partial enlarged view at Fig. 5 H；
Figure 10 is the partial enlarged view at Fig. 5 J；
Figure 11 is the partial enlarged view at Fig. 4 K；
Figure 12 is schematic diagram when elevator described in the utility model is raised to elevating lever top；
Figure 13 is the partial enlarged view at Figure 12 L；
Figure 14 is the partial enlarged view at Figure 13 M；
Figure 15 is the structural schematic diagram of guide groove described in the utility model；
Figure 16 is the connection schematic diagram of guide groove and column；
Figure 17 is the schematic top plan view of the utility model；
Figure 18 is the partial enlarged view at Figure 17 N；
Figure 19 is the partial enlarged view at Figure 18 P；
Figure 20 is the schematic diagram one in oval rotating seat rotation process；
Figure 21 is the schematic diagram two in oval rotating seat rotation process；
In figure, 1, support plate；2, supporting leg；3, bottom plate；4, dust cover；5, hinge one；6, transparent cover plate；7, fixing screws；
8, connection pipe of dust collector；9, air pump；10, snorkel one；11, snorkel two；12, air-supplying valve one；13, air-supplying valve two；14,
Guide rail mounting groove；15, guide rail；16, slide；17, nut block；18, lead screw；19, fixing sleeve；20, limited block one；21, handle；
22, limited block two；23, gas motor；24, steam hose；25, gas motor escape pipe；26, guide sleeve；27, air inlet one；28, ellipse
Circular rotating seat；29, air slot；30, inlet pipe connection；31, stretch tracheae；32, elevator air inlet pipe；33, air inlet duct；34,
Elevator；35, mounting groove；36, installation axle；37, impeller；38, exhaust passage；39, rubber wheel；40, elevating lever；41, scotch；
42, arc groove；43, dust-proof plate placing groove；44, dust-proof plate；45, hinge two；46, fixed hinge seat；47, guide groove；48, it stands
Column；49, spring；50, spring stop；51, support base；52, connecting shaft；53, idler wheel；54, nozzle；55, fumarole；56, air inlet
Pipe；57, main frame；58, spring case；59, roller mounting slot；60, air inlet two.
Specific embodiment
The utility model is specifically described with reference to the accompanying drawing, as shown in Fig. 1-2 1, a kind of closed calculating owner
Dust removal device, including support plate 1 and supporting leg 2；It is fixed with supporting leg 2 in the bottom end of support plate 1, the top of support plate 1 is fixed with
Dust cover 4 is fixed with bottom plate 3 in the support plate 1 in dust cover 4；The upper end of 4 front end side wall of dust cover is hinged by hinge 1
There is transparent cover plate 6, the lower end of transparent cover plate 6 is detachably mounted in the front end side wall of dust cover 4 by fixing screws 7, is prevented
Dust hood 4 is communicated with connection pipe of dust collector 8, and connection pipe of dust collector 8 is connected to dust catcher；Guide rail mounting groove 14 is offered on bottom plate 3,
Sliding is provided with guide rail 15 in guide rail mounting groove 14, and the top of guide rail 15 is fixed with slide 16, and the bottom end of slide 16 is fixed with spiral shell
Mother tuber 17, nut block 17 are arranged between two guide rails 15, and lead screw 18 is provided in nut block 17, and lead screw 18 passes through screw thread and spiral shell
Mother tuber 17 connects, and wherein lead screw 18 is arranged in guide rail mounting groove 14；Limited block 2 22, lead screw are fixed in one end of lead screw 18
18 other end passes through fixing sleeve 19 and is fixed with handle 21, and fixing sleeve 19 is fixed in guide rail mounting groove 14,19 both ends of fixing sleeve
Lead screw 18 on be fixed with limited block 1；Gas motor 23 is fixed in slide 16, the output shaft of gas motor 23 passes through air guide
Set 26 is fixedly connected with oval rotating seat 28, and wherein guide sleeve 26 is fixed on the top of slide 16, wherein oval rotating seat
28 lower end is arranged in guide sleeve 26；It is fixed with air pump 9 on supporting leg 2 below support plate 1, ventilation is provided on air pump 9
Air-supplying valve 1 and air-supplying valve two are respectively arranged on pipe 1 and snorkel 2 11, snorkel 1 and snorkel 2 11
13, Center Vent tube 1 is connected to the air inlet of gas motor 23 by steam hose 24；Guide groove is also provided on bottom plate 3
47, the interior sliding of guide groove 47 is provided with column 48, and the upper end of column 48 is arranged in the groove opened up on spring case 58, spring case
One end in the groove opened up on 58 far from column 48 is fixed with spring stop 50, is connected between spring stop 50 and column 48
Spring 49, spring 49 are arranged in the groove opened up on spring case 58；Fumarole 55 is offered in column 48, fumarole 55 connects
It is connected with nozzle 54, nozzle 54 is positioned close on the column 48 of oval 28 side of rotating seat, and fumarole 55 is also communicated with air inlet
Pipe 56, air inlet pipe 56 are connected to snorkel 2 11 by air induction hose；
It wherein is fixed with support base 51 on the column 48 of 54 lower section of nozzle, support base 51 is connected with idler wheel by connecting shaft 52
53, idler wheel 53 is contacted with oval rotating seat 28；
Wherein 23 gas outlet of gas motor is communicated with gas motor escape pipe 25, and the other end of gas motor escape pipe 25, which is communicated with, leads
The air inlet 1 opened up in air-casing 26, the other end of air inlet 1 are communicated with the air slot opened up in oval rotating seat 28
29, air slot 29 passes through the air inlet 2 60 opened up in oval rotating seat 28 and is connected to inlet pipe connection 30, inlet pipe connection 30
It is communicated with flexible tracheae 31, the other end of flexible tracheae 31 is communicated with the elevator air inlet pipe 32 being arranged on elevator 34, goes up and down
The air inlet duct 33 opened up in block air inlet pipe 32 and elevator 34 is connected to, and air inlet duct 33 is communicated with the mounting groove opened up in elevator 34
35, installation axle 36 is fitted in mounting groove 35, and impeller 37 is fixed in installation axle 36；The both ends of installation axle 36 are provided with rubber wheel
39, rubber wheel 39 is arranged in the roller mounting slot 59 opened up in elevator 34, is also fitted with elevating lever in roller mounting slot 59
40, elevating lever 40 is contacted with rubber wheel 39, and rubber wheel 39 compresses elevating lever 40；Scotch is fixed on the top of elevating lever 40
41, arc groove 42 is offered on the elevating lever 40 of the lower section of scotch 41, and the bottom end of elevating lever 40 is fixed on oval rotating seat
28 top；Dust-proof plate placing groove 43, dust-proof plate placing groove 43 are offered on the oval rotating seat 28 below elevator 34
It is inside fixed with dust-proof plate 44, is connected between dust-proof plate 44 and dust-proof plate 44 by hinge 2 45, the dust-proof plate 44 of the top and solid
It is hinged to determine hinged seat 46, fixed hinge seat 46 is fixed on the bottom end of elevator 34；What is opened up in mounting groove 35 and elevator 34 goes out
Air duct 38 is connected to, and the right side of fixed hinge seat 46 is arranged in the air outlet of exhaust passage 38.
In the present embodiment, when needing to carry out cleaning dedusting to main frame 57, first by main frame 57
Side cover plate open, then fixing screws 7 are removed, open transparent cover plate 6, main frame 57 is placed into oval rotation
On seat 28, the one end for making 57 side cover plate of main frame be opened makes elevator 34 in nozzle 54 and computer towards nozzle 54
Between host 57, then transparent cover plate 6 is covered and is closed, fixing screws 7 are reinstalled into original position.At this time by connection pipe of dust collector 8 and suction
The connection of dirt device, starts dust catcher and air pump 9, opens air-supplying valve 2 13, make air pump 9 by snorkel 2 11, air induction hose, into
Tracheae 56 and fumarole 55 are supplied to nozzle 54, at this moment use hand rotational handle 21, make handle 21 that lead screw 18 be driven to rotate, lead screw 18
It is mobile to will drive nut block 17, nut block 17 will drive the movement of slide 16, and slide 16 will drive guide rail 15 in guide rail mounting groove 14
Middle sliding；Slide 16 can drive main frame 57 mobile by guide sleeve 26 and oval rotating seat 28 at the same time, make to count
It calculates 57 relative nozzle 54 of machine host to be moved, clears up nozzle 54 preferably to main frame 57.
Observe the situation in dust cover 4 through transparent cover plate 6 makes to calculate after not having dust in air by handle 21
Machine host 57 is directed at nozzle 54, then opens air-supplying valve 1, makes air pump 9 by snorkel 1 and steam hose 24 to gas
Motor 23 supplies, and gas motor 23 will drive oval rotating seat 28 and rotate, and oval rotating seat 28 will drive main frame 57
Rotation makes 57 relative nozzle 54 of main frame carry out rotation；At the same time, the compressed gas after gas motor 23 can pass through
Gas motor escape pipe 25, air inlet 1, air slot 29, air inlet 2 60, inlet pipe connection 30, flexible tracheae 31, elevator
It is entered in the mounting groove 35 opened up in elevator 34 after air inlet pipe 32 and air inlet duct 33, makes 37 turns of compressed gas impeller
Dynamic, impeller 37 will drive the rotation of installation axle 36, and installation axle 36 will drive the rotation of rubber wheel 39, and rubber wheel 39 can be along elevating lever 40
It climbs, rubber wheel 39 can drive elevator 34 to move upwardly together by installation axle 36, and elevator 34 will drive dust-proof plate
44 move upwards, and when rubber wheel 39 climbs into the arc groove 42 of 40 upper end of elevating lever, rubber wheel 39 can be in arc groove
It is constantly rotated in 42, but rubber wheel 39 cannot be further continued for climbing at this time, at this moment dust-proof plate 44 can be kept off in main frame 57
One end that side cover plate is opened；When 57 relative nozzle 54 of main frame carries out rotation, nozzle 54 is understood outside to main frame 57
The dust speckled on shell is cleared up, and under the blocking of dust-proof plate 44, the dust to wave in air at this time will not enter calculating
In machine host 57, and also can be out of dust-proof plate 44 and main frame 57 are formed space outward from the gas that exhaust passage 38 is discharged
Blowing, further blocks the dust to wave in air and enters in main frame 57.
When the rotation of oval rotating seat 28, oval rotating seat 28 can drive column 48 by idler wheel 53 and support base 51
Mobile, in spring 49 with closing, column 48 can ceaselessly move back and forth, and nozzle 54 can be made from main frame 57 in this way
Apart from closer, better cleaning effect can achieve.
After cleaning out, closes air pump 9 and die to gas motor 23, under elevator 34 can be under self gravitation effect at this time
Drop drives dust-proof plate 44 to return to original position, waits use next time.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art
Personnel embody the principles of the present invention to some variations that some of them part may be made, and belong to the utility model
Protection scope within.
Claims (3)
1. a kind of closed main frame dust-extraction unit, it is characterised in that: including support plate (1) and supporting leg (2)；The support
The bottom end of plate (1) is fixed with supporting leg (2), and the top of support plate (1) is fixed with dust cover (4), the support plate in dust cover (4)
(1) bottom plate (3) are fixed on；The upper end of dust cover (4) front end side wall is hinged with transparent cover plate (6) by hinge one (5),
The lower end of transparent cover plate (6) is detachably mounted in the front end side wall of dust cover (4) by fixing screws (7), dust cover (4)
It is communicated with connection pipe of dust collector (8), connection pipe of dust collector (8) is connected to dust catcher；Guide rail installation is offered on the bottom plate (3)
Slot (14), the interior sliding of guide rail mounting groove (14) are provided with guide rail (15), and the top of guide rail (15) is fixed with slide (16), slide
(16) bottom end is fixed with nut block (17), and nut block (17) is arranged between two guide rails (15), setting in nut block (17)
Have lead screw (18), lead screw (18) is connect by screw thread with nut block (17), and wherein lead screw (18) is arranged in guide rail mounting groove (14)
In；One end of the lead screw (18) is fixed with limited block two (22), and the other end of lead screw (18) passes through fixing sleeve (19) and is fixed with
Handle (21), fixing sleeve (19) are fixed in guide rail mounting groove (14), are fixed on the lead screw (18) at fixing sleeve (19) both ends limited
Position block one (20)；It is fixed with gas motor (23) in the slide (16), the output shaft of gas motor (23) connects across guide sleeve (26)
It connects and is fixed with oval rotating seat (28), wherein guide sleeve (26) is fixed on the top of slide (16), wherein oval rotating seat
(28) lower end setting is in guide sleeve (26)；Air pump (9), air pump are fixed on supporting leg (2) below the support plate (1)
(9) it is provided with snorkel one (10) and snorkel two (11) on, is respectively arranged on snorkel one (10) and snorkel two (11)
Air-supplying valve one (12) and air-supplying valve two (13), Center Vent tube one (10) pass through steam hose (24) connection gas motor (23)
Air inlet；It is also provided with guide groove (47) on the bottom plate (3), sliding is provided with column (48), column in guide groove (47)
(48) upper end is arranged in the groove opened up on spring case (58), far from column (48) in the groove opened up on spring case (58)
One end be fixed with spring stop (50), be connected between spring stop (50) and column (48) spring (49), spring (49) is set
It sets in the groove opened up on spring case (58)；It is offered fumarole (55) in the column (48), fumarole (55) is communicated with
Nozzle (54), nozzle (54) are positioned close on the column (48) of oval rotating seat (28) side, and fumarole (55) is also connected to
Have air inlet pipe (56), air inlet pipe (56) is connected to snorkel two (11) by air induction hose.
2. a kind of closed main frame dust-extraction unit according to claim 1, it is characterised in that: the nozzle (54)
It is fixed with support base (51) on the column (48) of lower section, support base (51) is connected with idler wheel (53), idler wheel by connecting shaft (52)
(53) it is contacted with oval rotating seat (28).
3. a kind of closed main frame dust-extraction unit according to claim 1, it is characterised in that: the gas motor
(23) gas outlet is communicated with gas motor escape pipe (25), and the other end of gas motor escape pipe (25) is communicated in guide sleeve (26) and opens
If air inlet one (27), the other end of air inlet one (27) is communicated with the air slot opened up in oval rotating seat (28)
(29), air slot (29) passes through air inlet two (60) connection inlet pipe connection (30) opened up in oval rotating seat (28), into
Gas connecting tube (30) is communicated with flexible tracheae (31), and the other end of flexible tracheae (31) is communicated with the liter being arranged on elevator (34)
It drops block air inlet pipe (32), the air inlet duct (33) opened up in elevator air inlet pipe (32) and elevator (34) is connected to, air inlet duct (33)
It is communicated with the mounting groove (35) opened up in elevator (34), is fitted with installation axle (36) in mounting groove (35), in installation axle (36)
It is provided with impeller (37)；The both ends of the installation axle (36) are provided with rubber wheel (39), and rubber wheel (39) is arranged in elevator
(34) in the roller mounting slot (59) opened up in, be also fitted in roller mounting slot (59) elevating lever (40), elevating lever (40) with
Rubber wheel (39) contact, rubber wheel (39) compress elevating lever (40)；The top of the elevating lever (40) is fixed with scotch (41),
It is offered arc groove (42) on elevating lever (40) below scotch (41), the bottom end of elevating lever (40) is fixed on oval rotation
The top of swivel base (28)；Dust-proof plate placing groove (43) are offered on oval rotating seat (28) below the elevator (34),
It is fixed with dust-proof plate (44) in dust-proof plate placing groove (43), between dust-proof plate (44) and dust-proof plate (44) even by hinge two (45)
It connects, hingedly, fixed hinge seat (46) is fixed on the bottom of elevator (34) for the dust-proof plate (44) of the top and fixed hinge seat (46)
End；The exhaust passage (38) opened up in the mounting groove (35) and elevator (34) is connected to, and the air outlet setting of exhaust passage (38) exists
The right side of fixed hinge seat (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208597.5U CN209680701U (en) | 2018-12-27 | 2018-12-27 | A kind of closed main frame dust-extraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208597.5U CN209680701U (en) | 2018-12-27 | 2018-12-27 | A kind of closed main frame dust-extraction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209680701U true CN209680701U (en) | 2019-11-26 |
Family
ID=68597053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822208597.5U Expired - Fee Related CN209680701U (en) | 2018-12-27 | 2018-12-27 | A kind of closed main frame dust-extraction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209680701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111375599A (en) * | 2018-12-27 | 2020-07-07 | 邯郸市复兴区宏昌科技有限公司 | Closed computer host dust collector |
| CN111570396A (en) * | 2020-04-21 | 2020-08-25 | 邯郸学院 | Equipment maintenance platform for computer maintenance |
-
2018
- 2018-12-27 CN CN201822208597.5U patent/CN209680701U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111375599A (en) * | 2018-12-27 | 2020-07-07 | 邯郸市复兴区宏昌科技有限公司 | Closed computer host dust collector |
| CN111570396A (en) * | 2020-04-21 | 2020-08-25 | 邯郸学院 | Equipment maintenance platform for computer maintenance |
| CN111570396B (en) * | 2020-04-21 | 2021-04-13 | 邯郸学院 | Equipment maintenance platform for computer maintenance |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 Termination date: 20201227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |