CN110840327B - Cleaning tool and cleaning method for computer host - Google Patents
Cleaning tool and cleaning method for computer host Download PDFInfo
- Publication number
- CN110840327B CN110840327B CN201910990243.7A CN201910990243A CN110840327B CN 110840327 B CN110840327 B CN 110840327B CN 201910990243 A CN201910990243 A CN 201910990243A CN 110840327 B CN110840327 B CN 110840327B
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- bin
- cleaning
- placing box
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- host
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides a cleaning tool for a computer host, which comprises: the cleaning device comprises a roof-shaped cleaning operation bin, a main machine placing box, an air pressure balance bin arranged on one side of the main machine placing box and a pressure relief bin arranged on the other side of the main machine placing box; the cleaning operation bin is arranged at the upper end of the main machine placing box, the bottom end of the cleaning operation bin is connected and communicated with the main machine placing box, and the top end of the cleaning operation bin is provided with a cleaning operation hole for connecting a blower and a blowing cylinder; the air pressure balance bin, the main machine placing box and the pressure release bin are sequentially connected and communicated, a balance filter for filtering dirty air is arranged at one end of the air pressure balance bin far away from the main machine placing box, and a pressure release operation hole for connecting a dust collector air suction barrel is formed at one end of the pressure release bin far away from the main machine placing box. The invention further provides a computer mainframe cleaning method based on the computer mainframe cleaning tool, and the computer mainframe cleaning method is simple to operate, good in dust removal effect and free from secondary pollution.
Description
Technical Field
The invention relates to the technical field of computer cleaning, in particular to a cleaning tool and a cleaning method for a computer host.
Background
Background monitoring system, five-prevention system, dispatch issuing system, office computer, video environment monitoring system and the host equipment of a series of systems such as protection information substation system are in strong electromagnetic field environment for a long time, and a large amount of static dust is easily adsorbed by a main board, a fan, a board card and the like, and long-term accumulation of the static dust can lead to the running speed of a system program to be slower and slower, and the noise during the running of the computer to be larger and larger, and phenomena such as blue screen and dead halt can also occur at random, even the result of short circuit is caused, and the safe and stable running of the equipment is influenced, so that the regular dust removal and cleaning of the host computer are very necessary.
The traditional cleaning and dedusting methods for the computer host mainly comprise two methods:
1. the method has good cleaning effect, but because the case of the host machine has complex structure and numerous interfaces, the operator is required to have stronger manual capability, otherwise, the plate is possibly damaged, so that the recovery error occurs; in addition, the method requires long cleaning time, has the defect of low efficiency, and the workers are more in contact with dust in the process of cleaning by a computer, and the excessive dust brings certain adverse effects to the physical health of the workers.
2. The blowing cylinder is used for directly cleaning and dedusting the host computer. The wind force of the air blowing tube is strong, so that a better dust removing effect can be ensured, meanwhile, the cleaning efficiency is higher, a large amount of dust can be generated in the cleaning process, secondary pollution is generated on a cleaning site, and the health of workers is endangered.
In view of the above, it is necessary to disclose a highly efficient cleaning tool and cleaning method for a computer host, which is simple to operate, has a good dust removal effect, and does not cause secondary pollution.
Disclosure of Invention
In order to overcome the defects that the traditional computer mainframe cleaning method needs to disassemble the mainframe, has the defects of longer cleaning time and low cleaning efficiency, and the mainframe box is easy to disassemble, the operation capability requirement on an operator is high in the disassembling process, and a large amount of dust can be easily generated by the cleaning dust removing method directly using the air blowing tube, so that the body health of a worker is endangered.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
a host computer cleaning tool, the tool comprising: the cleaning device comprises a roof-shaped cleaning operation bin, a main machine placing box, an air pressure balance bin arranged on one side of the main machine placing box and a pressure relief bin arranged on the other side of the main machine placing box; the cleaning operation bin is arranged at the upper end of the main machine placing box, the bottom end of the cleaning operation bin is connected and communicated with the main machine placing box, and the top end of the cleaning operation bin is provided with a cleaning operation hole for connecting a blower and a blowing cylinder; the air pressure balance bin, the main machine placing box and the pressure release bin are sequentially connected and communicated, a balance filter for filtering dirty air is arranged at one end of the air pressure balance bin far away from the main machine placing box, and a pressure release operation hole for connecting a dust collector air suction barrel is formed at one end of the pressure release bin far away from the main machine placing box.
The cleaning operation bin is in a roof shape, the top end of the cleaning operation bin is provided with a cleaning operation hole for connecting a blower air cylinder, the external blower air cylinder blows air to the cleaning operation bin through the cleaning operation hole, the roof-shaped structure can ensure that air flow enters the uniformity of the cleaning operation bin, the bottom end of the cleaning operation bin is connected with the main machine placing box and is communicated, the air flow is further ensured to enter the uniformity of the main machine placing box, and when the main machine placing box is placed into the main machine for cleaning, the cleaning comprehensiveness of the air flow to the main machine is improved, and the dust removal effect is ensured; the air pressure balance bin, the main machine placing box and the pressure relief bin are sequentially connected and communicated, the air blowing tube of the air blower blows air to the cleaning operation bin through the cleaning operation hole to cause the air pressure in the cleaning tool to rise, the air pressure balance bin provides a buffer space for balancing the external atmospheric pressure in the process of cleaning the computer main machine, the condition that the air pressure in the cleaning tool is too high due to the fact that the air blower is started first is avoided, and the balance filter filters secondary dust after the computer main machine is cleaned; the pressure release bin plays a role in buffering air pressure and transition in the process that the suction cylinder of the dust collector is used for exhausting air through the pressure release operation hole, so that the dust collector is convenient for releasing high air pressure inside the cleaning tool through the pressure release operation hole.
Preferably, the host computer place the case and include the box, with the case lid of box bottom matching and connect two buckles of box and case lid, buckle bilateral symmetry sets up on the case lid, when clean computer, the host computer is placed the case and is opened through the buckle, and the computer is placed in the cavity in the box, and the bottom is located on the case lid, close the buckle, the computer seals in the inside of host computer place the case, and case lid detachably's existence provides the placing entry of computer for the host computer place the case in a flexible way.
Preferably, the sealing strip for sealing the box body and the box cover is arranged on the box cover matched with the periphery of the bottom of the box body, so that the air tightness of the computer host in the cleaning process is ensured.
Preferably, the size of the main machine placing box is larger than that of the main machine, so that the universality of the cleaning tool is improved.
Preferably, the cleaning operation hole is provided at a center of a top end of the cleaning operation bin.
Preferably, the size of the cleaning operation hole is matched with the size of the air blowing cylinder of the blower, and the size of the pressure release operation hole is matched with the size of the air blowing cylinder of the dust collector, so that the sealing performance of the cleaning tool in use is ensured, and the efficient utilization of the cleaning air flow is ensured.
Preferably, the pressure balance bin is of a V shape, one side of the head of the pressure balance bin connected with the main machine placing box is contracted with one side of the tail of the pressure balance bin connected with the balance filter, the pressure release bin is also of a V shape, one side of the head of the pressure release bin connected with the main machine placing box is contracted with one side of the tail of the pressure release bin connected with the pressure release operation hole, and the structural shapes of the pressure balance bin and the pressure release bin both ensure the pressure buffering function of the pressure balance bin and the pressure release bin in the cleaning process of the main machine.
Preferably, the balance filter is internally provided with breathable cotton for adsorbing polluted air, and the polluted air overflowed in the cleaning process is filtered.
The invention also provides a method for cleaning the computer host, which is realized by the cleaning tool of the computer host and comprises the following steps:
s1, opening a host computer placing box, placing a computer host in an inner cavity of the host computer placing box, and closing the host computer placing box;
s2, connecting a blowing cylinder of a blower with the cleaning operation hole, and simultaneously connecting an air suction cylinder of the dust collector with the pressure relief operation hole;
s3, turning on a blower, and injecting air flow into the cleaning operation bin through an air blower air blowing cylinder to enable the air pressure in the cleaning tool to be in a positive pressure state;
s4, opening the dust collector, and discharging high air pressure in the cleaning operation bin through an air suction cylinder of the dust collector;
s5, after cleaning, the blower is turned off, residual dust is cleaned by the dust collector, and then the dust collector is turned off.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
(1) The cleaning tool and the cleaning method for the computer host provided by the invention do not need to detach the host when the cleaning tool is used for cleaning the computer host, the air blowing cylinder of the external air blower blows air to the cleaning operation bin through the cleaning operation hole, the roof-shaped structure can ensure the uniformity of air flow entering the cleaning operation bin, the bottom end of the cleaning operation bin is connected with the host placing box and communicated, the uniformity of air flow entering the host placing box is also ensured, when the computer host is placed in the host placing box for cleaning, the comprehensiveness of the air flow on cleaning the computer host is improved, and the dust removing effect is ensured.
(2) In the using process of the computer host cleaning tool provided by the invention, the blowing cylinder of the blower is connected with the cleaning operation hole, the pressure release operation hole is connected with the dust collector, the air tightness of the whole cleaning tool is good, the defect that a large amount of dust is generated by the traditional cleaning and dust removing method directly using the blower is avoided, and the harm of secondary dust to the health of staff is reduced.
Drawings
FIG. 1 is a schematic diagram of the whole structure of a cleaning tool for a computer host according to the present invention.
FIG. 2 is a flowchart of a method for cleaning a computer host according to the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions;
it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Example 1
FIG. 1 is a schematic diagram showing the overall structure of a cleaning tool for a computer host according to the present invention, as shown in FIG. 1, the tool comprises: the cleaning device comprises a roof-shaped cleaning operation bin 1, a main machine placing box 2, an air pressure balance bin 3 arranged on one side of the main machine placing box 2 and a pressure release bin 4 arranged on the other side of the main machine placing box 2; the cleaning operation bin 1 is arranged at the upper end of the main machine placing box 2, the bottom end of the cleaning operation bin 1 is connected and communicated with the main machine placing box 2, and the top end of the cleaning operation bin 1 is provided with a cleaning operation hole 11 for connecting a blower and a blowing cylinder; the air pressure balance bin 3, the main machine placing box 2 and the pressure release bin 4 are sequentially connected and communicated, one end of the air pressure balance bin 3 far away from the main machine placing box 2 is provided with a balance filter 3 for filtering dirty air, and one end of the pressure release bin 4 far away from the main machine placing box 2 is provided with a pressure release operation hole 41 for connecting a dust collector air suction barrel.
As shown in fig. 1, the cleaning operation cabin 1 is in a roof shape, a cleaning operation hole 11 for connecting a blower is arranged in the center of the top end, the external blower blows air to the cleaning operation cabin 1 through the cleaning operation hole 11, the roof-shaped structure can ensure the uniformity of air flow entering the cleaning operation cabin 1, the bottom end of the cleaning operation cabin 1 is connected with the main machine placing box 2, the uniformity of air flow entering the main machine placing box 2 is also ensured, when the computer main machine 5 is placed in the main machine placing box 2 for cleaning, the comprehensiveness of the air flow on the cleaning of the computer main machine 5 is improved, and the dust removing effect is ensured;
the air pressure balance bin 3, the main machine placing box 2 and the pressure release bin 4 are sequentially connected and communicated, the air pressure inside the cleaning tool is increased due to the fact that the air blowing cylinder of the air blower blows air to the cleaning operation bin 1 through the cleaning operation hole 11, the air pressure balance bin 3 provides a buffer space for balancing the external atmospheric pressure in the process of cleaning the computer main machine 5, the situation that the internal air pressure of the cleaning tool is too high due to the fact that the air blower is started first is avoided, and the balance filter 31 filters secondary dust after the computer main machine 5 is cleaned; the decompression bin 4 plays roles of buffering air pressure and transition in the process that the suction cylinder of the dust collector is used for exhausting air through the decompression operation hole 41, so that the dust collector is convenient for discharging high air pressure inside the cleaning tool through the decompression operation hole 41.
Referring to fig. 1, the host placing box 2 includes a box 21, a box cover 22 matched with the bottom end of the box 21, and a plurality of buckles 23 connecting the box 21 and the box cover 22, in this embodiment, the number of the buckles 23 is 2 buckles, the host placing box 2 is symmetrically arranged on the box 22, when the host 5 is cleaned, the host placing box 2 is opened by the buckles 23, the host 5 is placed in a cavity in the box 21, the bottom end is positioned on the box cover 22, the buckles 23 are closed, the host 5 is sealed in the interior of the host placing box 2, and the detachable existence of the box cover 22 flexibly provides a placing inlet of the host 5 for the host placing box 2. The sealing strip 221 for sealing the box body 21 and the box cover 22 is arranged on the box cover 22 matched with the periphery of the bottom of the box body 21, so that the air tightness of the computer host 5 in the cleaning process is ensured. In the specific implementation process, the size of the box body 21 of the main machine placing box 2 is larger than that of the computer main machine 5, so that the universality of the cleaning tool is improved.
The size of the cleaning operation hole 11 is matched with the size of the air blowing cylinder of the blower, the size of the pressure relief operation hole 41 is matched with the size of the air blowing cylinder of the dust collector, the sealing performance of the cleaning tool in use is ensured, and the efficient utilization of cleaning air flow is ensured.
As shown in fig. 1, the air pressure balance bin 3 is in a V shape, a front side of the air pressure balance bin 3 connected with the main machine placing box 2 is contracted towards a rear side of the air pressure balance bin 3 connected with the balance filter 31, the pressure release bin 4 is also in a V shape, a front side of the pressure release bin 4 connected with the main machine placing box 2 is contracted towards a rear side of the pressure release bin 4 connected with the pressure release operation hole 41, the structural shapes of the air pressure balance bin 3 and the pressure release bin 4 ensure the air pressure buffering effect of the air pressure balance bin 3 and the pressure release bin 4 in the cleaning process of the computer 5, and the air-permeable cotton 311 for adsorbing the dirty air is arranged in the balance filter 31, and the dirty air overflowed in the cleaning process is filtered.
The invention also provides a method for cleaning the computer host, which is realized by the cleaning tool of the computer host, and the realized steps are as shown in the flow chart of fig. 2, and the steps comprise:
s1, opening a host placing box (2), placing a computer host (5) in an inner cavity of the host placing box (2), and closing the host placing box (2);
s2, connecting a blowing cylinder of a blower with the cleaning operation hole 11, and simultaneously connecting a suction cylinder of the dust collector with the pressure relief operation hole 41;
s3, turning on a blower, and injecting air flow into the cleaning operation bin 1 through an air blower air blowing cylinder to enable the air pressure in the cleaning tool to be in a positive pressure state;
s4, opening the dust collector, and discharging high air pressure in the cleaning operation bin 1 through an air suction cylinder of the dust collector;
s5, after cleaning, the blower is turned off, residual dust is cleaned by the dust collector, and then the dust collector is turned off.
The same or similar reference numerals correspond to the same or similar components;
the positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent;
it should be understood that the terms "upper", "lower", "left", "right" and the like in the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limited to the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (8)
1. A host computer cleaning tool, the tool comprising: the cleaning device comprises a roof-shaped cleaning operation bin (1), a main machine placing box (2), an air pressure balance bin (3) arranged on one side of the main machine placing box (2) and a pressure release bin (4) arranged on the other side of the main machine placing box (2); the cleaning operation bin (1) is arranged at the upper end of the main machine placing box (2), the bottom end of the cleaning operation bin (1) is connected with the main machine placing box (2) in a penetrating way, and a cleaning operation hole (11) for connecting a blower and a blowing cylinder is formed in the top end of the cleaning operation bin (1); the air pressure balance bin (3), the main machine placing box (2) and the pressure relief bin (4) are sequentially connected and communicated, a balance filter (31) for filtering dirty air is arranged at one end of the air pressure balance bin (3) far away from the main machine placing box (2), and a pressure relief operation hole (41) for connecting a dust collector air suction barrel is formed at one end of the pressure relief bin (4) far away from the main machine placing box (2);
the host placing box (2) comprises a box body (21), a box cover (22) matched with the bottom end of the box body (21) and two buckles (23) for connecting the box body (21) and the box cover (22), wherein the buckles (23) are symmetrically arranged on the box cover, when a computer host (5) is cleaned, the host placing box (2) is opened through the buckles (23), the computer host (5) is placed in a cavity in the box body (21), the bottom end of the host placing box is positioned on the box cover (22), the buckles (23) are closed, and the computer host (5) is sealed inside the host placing box (2);
a sealing strip (221) for sealing the box body (21) and the box cover (22) is arranged on the box cover (22) matched with the periphery of the bottom of the box body (21).
2. The computer mainframe cleaning tool according to claim 1, wherein the size of the case (21) of the mainframe placing case (2) is larger than the size of the computer mainframe (5).
3. The computer mainframe cleaning tool according to claim 1, characterized in that the cleaning operation hole (11) is provided at the center of the top end of the cleaning operation bin (1).
4. A computer mainframe cleaning implement according to claim 1, characterized in that the cleaning operation hole (11) is sized to match the size of the blower air-blowing cylinder, and the pressure relief operation hole (41) is sized to match the size of the vacuum cleaner air-blowing cylinder.
5. The cleaning tool for a computer host according to claim 1, wherein the air pressure balance bin (3) is V-shaped, and a side of the head of the air pressure balance bin (3) connected with the host placing box (2) is contracted to a side of the tail of the air pressure balance bin (3) connected with the balance filter (31).
6. The cleaning tool for a computer host according to claim 5, wherein the pressure release bin (4) is also V-shaped, and a side of the head of the pressure release bin (4) connected to the host placement box (2) is contracted to a side of the tail of the pressure release bin (4) connected to the pressure release operation hole (41).
7. The cleaning tool for a computer host according to claim 5, wherein the balance filter (31) is internally provided with air-permeable cotton (311) for adsorbing dirty air.
8. A method of cleaning a computer host, the method being implemented by the computer host cleaning tool of claim 1, the steps comprising:
s1, opening a host placing box (2), placing a computer host (5) in an inner cavity of the host placing box (2), and closing the host placing box (2);
s2, connecting a blowing cylinder of a blower with the cleaning operation hole (11), and simultaneously connecting an air suction cylinder of the dust collector with the pressure release operation hole (41);
s3, turning on a blower, and injecting air flow into the cleaning operation bin (1) through an air blower air blowing cylinder to enable the air pressure in the cleaning tool to be in a positive pressure state;
s4, opening the dust collector, and discharging high air pressure in the cleaning operation bin (1) through an air suction cylinder of the dust collector;
s5, after cleaning, the blower is turned off, residual dust is cleaned by the dust collector, and then the dust collector is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990243.7A CN110840327B (en) | 2019-10-17 | 2019-10-17 | Cleaning tool and cleaning method for computer host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990243.7A CN110840327B (en) | 2019-10-17 | 2019-10-17 | Cleaning tool and cleaning method for computer host |
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| Publication Number | Publication Date |
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| CN110840327A CN110840327A (en) | 2020-02-28 |
| CN110840327B true CN110840327B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910990243.7A Active CN110840327B (en) | 2019-10-17 | 2019-10-17 | Cleaning tool and cleaning method for computer host |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE29706187U1 (en) * | 1996-04-03 | 1997-07-31 | Compu-Clean Norge AS, Dal | Device for removing dust from computers or the like devices |
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| CN105344660A (en) * | 2015-11-26 | 2016-02-24 | 国网北京市电力公司 | Case cleaning device |
| CA3019388A1 (en) * | 2016-03-30 | 2017-10-05 | Husqvarna Ab | A relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
| CN206548432U (en) * | 2016-11-23 | 2017-10-13 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of dust catcher that function is swept with blowback |
| CN208555310U (en) * | 2018-04-20 | 2019-03-01 | 黑龙江华夏易能新能源科技有限公司 | A kind of cleaning device and cleaning systems |
| CN209252677U (en) * | 2018-06-14 | 2019-08-16 | 深圳市东部公共交通有限公司 | Pressure-vaccum dirt one recycling machine |
| CN210989969U (en) * | 2019-10-17 | 2020-07-14 | 广东电网有限责任公司 | Cleaning tool for computer host |
-
2019
- 2019-10-17 CN CN201910990243.7A patent/CN110840327B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29706187U1 (en) * | 1996-04-03 | 1997-07-31 | Compu-Clean Norge AS, Dal | Device for removing dust from computers or the like devices |
| CN102527668A (en) * | 2011-09-28 | 2012-07-04 | 威泰能源(苏州)有限公司 | Dust attachment cleaning device |
| CN105344660A (en) * | 2015-11-26 | 2016-02-24 | 国网北京市电力公司 | Case cleaning device |
| CA3019388A1 (en) * | 2016-03-30 | 2017-10-05 | Husqvarna Ab | A relief valve and a hose device for dust collectors, a dust collector and a method for operating a dust collector |
| CN206548432U (en) * | 2016-11-23 | 2017-10-13 | 中国南方电网有限责任公司超高压输电公司柳州局 | A kind of dust catcher that function is swept with blowback |
| CN208555310U (en) * | 2018-04-20 | 2019-03-01 | 黑龙江华夏易能新能源科技有限公司 | A kind of cleaning device and cleaning systems |
| CN209252677U (en) * | 2018-06-14 | 2019-08-16 | 深圳市东部公共交通有限公司 | Pressure-vaccum dirt one recycling machine |
| CN210989969U (en) * | 2019-10-17 | 2020-07-14 | 广东电网有限责任公司 | Cleaning tool for computer host |
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| CN110840327A (en) | 2020-02-28 |
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