CN209462848U - A kind of communication base station room dust filtering ventilation device - Google Patents
A kind of communication base station room dust filtering ventilation device Download PDFInfo
- Publication number
- CN209462848U CN209462848U CN201821719424.3U CN201821719424U CN209462848U CN 209462848 U CN209462848 U CN 209462848U CN 201821719424 U CN201821719424 U CN 201821719424U CN 209462848 U CN209462848 U CN 209462848U
- Authority
- CN
- China
- Prior art keywords
- external thread
- thread rod
- supporter
- dust
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 53
- 238000009423 ventilation Methods 0.000 title claims abstract description 32
- 238000001914 filtration Methods 0.000 title claims abstract description 28
- 238000004891 communication Methods 0.000 title claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 2
- 238000004378 air conditioning Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of communication base station room dust filtering ventilation devices in communication base station field, including computer room wall, the right side wall of the computer room wall is provided with supporter, the left end of the supporter is provided through two groups of fixed spiral pins, the first external thread rod is provided through between on the left of two wall of inner cavity of the supporter, the second external thread rod is provided through on the right side of first external thread rod, third external thread rod is provided through on the right side of second external thread rod, the top of first external thread rod is socketed with the first belt pulley, the setting of sealing valve and dust-absorbing fan, it can be timely by the dust dirt powder discharger under cleaning inside, improve the cleannes of strainer, the air that more effective convection current is passed through computer room is purified, it is provided with the first driving motor and belt and belt sheave structure, so that a motor in device operational process Double-axle rotation is controlled, but also external thread rod rotation is stronger while power saving, is conducive to the popularization of the utility model.
Description
Technical field
The utility model relates to communication base station field, specially a kind of communication base station room dust filtering ventilation device.
Background technique
The epoch of information have arrived, and demand of the human society to communication is continuously increased, it is desirable that service network can reach
Any time, the effect that any place can be linked up with anyone, the mobile base station of operator, the number for accessing network, module office
Amount also constantly increases, and the quantity increase of especially unmanned mobile base station is very swift and violent, but the various electronic equipments in these base stations
It needs under certain environment temperature, humidity and air clarity, could normally run for a long time, in order to reach base station standard
Environment, each communication base station has been equipped with more air-conditionings, and these air-conditionings are typically in open state all the year round, except air-conditioning event
Outside can not knowing in time after barrier, the power consumption of base station air conditioner is huge, and by taking the base station in somewhere as an example, annual electric cost expenditure is
As many as 2.5 ten thousand yuan, and the electric cost expenditure of base station air conditioner accounts for about 54% or so of entire base station electric cost expenditure, air-conditioning becomes base station machine
Main current consuming apparatus in room.
Communication base station also known as wireless base station refer to the low-power wireless antenna communicated with user mobile phone, according to its clothes
Be engaged in range size and user how much, transmission power is general inside communication base station room free to transfer in from several watts to upper hectowatt etc.
Row heat dissipation, air-conditioning are easily damaged when long-time uses, and are radiated in air-conditioning damage generally by ventilation device, still
Since long-time is placed, ventilation opening section is easy to save bit by bit dust, and the filter screen of ventilation opening section saves bit by bit a large amount of dusts at this time, causes to divulge information
Unsmooth, if filter screen is cleared up not in time, dust enters base station and is likely to result in that electronic component is impaired, and base station is generally again in higher
Position, portion in the device as strainer is another, the artificial strainer that cleans is very troublesome, accidentally may cause electronic component damage.
Based on this, the utility model devises a kind of communication base station room dust filtering ventilation device, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of communication base station room dust filtering ventilation devices, to solve above-mentioned background skill
Itd is proposed in art since long-time is placed, ventilation opening section is easy to save bit by bit dust, and the filter screen of ventilation opening section saves bit by bit a large amount of ashes at this time
Dirt causes to divulge information unsmooth, if filter screen is cleared up not in time, dust enters base station impaired, the base station one that is likely to result in electronic component
As be in higher position again, portion in the device as strainer is another, the artificial strainer that cleans is very troublesome, accidentally may cause electricity
The problem of subassembly damages.
To achieve the above object, the utility model provides the following technical solutions: a kind of communication base station room dust filtering ventilation dress
It sets, including computer room wall, the right side wall of the computer room wall is provided with supporter, and the left end of the supporter is provided through two
Group fixes spiral pin, is provided through the first external thread rod, first external screw thread between the inner cavity two walls left side of the supporter
It is provided through the second external thread rod on the right side of bar, is provided through third external thread rod on the right side of second external thread rod,
The top of first external thread rod is socketed with the first belt pulley, is socketed with the second belt above second external thread rod
Wheel, is provided with feed belt, is provided with above second external thread rod between first belt pulley and the second belt pulley
First driving motor, and the output shaft of the first driving motor is fixedly connected with the upper end of the second external thread rod by shaft coupling, institute
It states the right side at the top of supporter and is fixedly connected with the second driving motor, and the output shaft of the second driving motor and third external thread rod
Upper end be fixedly connected by shaft coupling, be fixedly connected with fixed case at the top of the supporter, first driving motor with
It is fixedly connected at the top of fixed box cavity, the surface of first external thread rod and the second external thread rod is socketed with internal screw thread cleaning
Circle, and internal screw thread cleaning circle passes through screw thread with the first external thread rod and the second external thread rod and is flexibly connected, the first outer spiral shell
It is provided with activated charcoal strainer on the left of rasp bar, dust filtering filter is provided between second external thread rod and third external thread rod
Net, the thread surface of the third external thread rod is socketed with the long body cleaning brush of internal screw thread, and third external thread rod and internal screw thread are long
Body cleaning brush is flexibly connected by screw thread, and ventilation fan, the branch are fixedly connected between the right side of the supporter intracavity sidewall
Bulky grain strainer is fixedly connected between the right end of support body intracavity sidewall, the lower wall of the supporter is provided with dust mouth, institute
The upper end for stating dust mouth inner cavity is fixedly connected with dust-absorbing fan, and the inner cavity lower end of the dust mouth is provided with sealing valve, the sealing
The bottom of valve is fixedly connected with sealing valve handle, and first driving motor, the second driving motor, ventilation fan and dust-absorbing fan are logical
Control switch is crossed to be electrically connected with external power supply.
Preferably, the internal screw thread cleaning circle includes support frame, is provided at left and right sides of the support frame interior
The outside surrounding of threaded hole, the support frame is evenly arranged with cleaning brush.
Preferably, first external thread rod, the second external thread rod and third external thread rod both ends with supporter
Side wall is flexibly connected by bearing.
Preferably, the activated charcoal strainer is fixedly connected with supporter inner sidewall both ends, the activated charcoal strainer
Right side wall and internal screw thread cleaning circle left end fit closely.
Preferably, the dust filtration strainer is fixedly connected with supporter inner sidewall both ends, the left side wall of the dust filtration strainer
It is fitted closely with the right end of internal screw thread cleaning circle.
Preferably, the dust mouth is set to the underface among the first external thread rod and the second external thread rod, and dirt out
The sizes values of mouth are approximately equal to the distance between the first external thread rod and the second external thread rod value.
Compared with prior art, the utility model has the beneficial effects that the utility model uses motor automation control, it can
It is dusted cleaning with inside of the automatic control device to strainer, using three layers of different filter screen, is effectively isolated in air
Dust impurity, avoids enter into computer room, and cleanup crew only needs to open sealing valve manually and to outermost bulky grain filtering net cleaning,
Remaining cleaning automation carries out, time saving and energy saving, cleans convenient for personnel, the setting of sealing valve and dust-absorbing fan can be timely
By the dust dirt powder discharger under cleaning inside, improve the cleannes of strainer, more effective convection current is passed through the air of computer room
It is purified, is provided with the first driving motor and belt and belt sheave structure, so that a motor control in device operational process
Double-axle rotation is conducive to the popularization of the utility model but also external thread rod rotation is stronger while power saving.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is that the utility model internal screw thread cleans coil structures schematic diagram；
Fig. 3 is the long body cleaning brush structural schematic diagram of the utility model internal screw thread.
In attached drawing, parts list represented by the reference numerals are as follows:
1- computer room wall, 2- supporter, two groups of 3- fixed spiral pins, the first external thread rod of 4-, the second external thread rod of 5-, 6-
Three external thread rods, the first belt pulley of 7-, the second belt pulley of 8-, 9- feed belt, the first driving motor of 10-, 11- second drive electricity
Machine, 12- fixed case, 13- internal screw thread cleaning circle, 131- support frame, 132- internal thread hole, 133- cleaning brush, 14- active carbon
Filter screen, 15- dust filtering strainer, the long body cleaning brush of 16- internal screw thread, 17- ventilation fan, 18- bulky grain strainer, the dust mouth 19-, 20-
Dust-absorbing fan, 21- sealing valve, 22- sealing valve handle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of communication base station room dust filtering ventilation device,
Including computer room wall 1, the right side wall of computer room wall 1 is provided with supporter 2, and the left end of supporter 2 is provided through two groups and fixes
Spiral pin 3, on the left of inner cavity two wall of supporter 2 between be provided through the first external thread rod 4, the right side of the first external thread rod 4 is passed through
It wears and is equipped with the second external thread rod 5, the right side of the second external thread rod 5 is provided through third external thread rod 6, the first external thread rod
4 top is socketed with the first belt pulley 7, and the top of the second external thread rod 5 is socketed with the second belt pulley 8, the first belt pulley 7 and
Feed belt 9 is provided between two belt pulleys 8, the top of the second external thread rod 5 is provided with the first driving motor 10, and first drives
The output shaft of dynamic motor 10 is fixedly connected with the upper end of the second external thread rod 5 by shaft coupling, and the right side at 2 top of supporter is fixed
It is connected with the second driving motor 11, and the upper end of the output shaft of the second driving motor 11 and third external thread rod 6 passes through shaft coupling
It is fixedly connected, the top of supporter 2 is fixedly connected with fixed case 12, and the first driving motor 10 and the top of 12 inner cavity of fixed case are solid
The surface of fixed connection, the first external thread rod 4 and the second external thread rod 5 is socketed with internal screw thread cleaning circle 13, and internal screw thread cleaning circle
13 are flexibly connected by screw thread with the first external thread rod 4 and the second external thread rod 5, and the left side of the first external thread rod 4 is provided with
Activated charcoal strainer 14 is provided with dust filtering strainer 15, third external thread rod 6 between second external thread rod 5 and third external thread rod 6
Thread surface be socketed with the long body cleaning brush 16 of internal screw thread, and third external thread rod 6 and the long body cleaning brush 16 of internal screw thread pass through spiral shell
Line is flexibly connected, and ventilation fan 17, the right end of 2 intracavity sidewall of supporter are fixedly connected between the right side of 2 intracavity sidewall of supporter
Between be fixedly connected with bulky grain strainer 18, the lower wall of supporter 2 is provided with dust mouth 19, and the upper end of 19 inner cavity of dust mouth is solid
Surely it is connected with dust-absorbing fan 20, the inner cavity lower end of dust mouth 19 is provided with sealing valve 21, and the bottom of sealing valve 21 is fixedly connected with close
Seal valve handle 22, the first driving motor 10, the second driving motor 11, ventilation fan 17 and dust-absorbing fan 20 are by control switch and outer
Portion's power supply is electrically connected.
Wherein, internal screw thread cleaning circle 13 includes support frame 131, and the left and right sides of support frame 131 is provided with interior spiral shell
The outside surrounding of pit 132, support frame 131 is evenly arranged with cleaning brush 133, can be very good the filtering gauze brush to two sides
Except dust, cleaned, the first external thread rod 4, the second external thread rod 5 and third external thread rod 6 both ends with supporter 2
Side wall is flexibly connected by bearing, so that external thread rod rotation is more flexible, activated charcoal strainer 14 and 2 inner sidewall two of supporter
End is fixedly connected with, and the left end of the right side wall and internal screw thread cleaning circle 13 of activated charcoal strainer 14 fits closely, and can to brush
The cleaning dynamics of hair greatly improves, and dust mouth 19 is set to the underface among the first external thread rod 4 and the second external thread rod 5,
And the sizes values of dust mouth 19 are approximately equal to the distance between the first external thread rod 4 and the second external thread rod 5 value, it can be better
By the dust discharger under brush.
One concrete application of the present embodiment are as follows: by the left end of dust filtering ventilation device and communication base station room ventilation opening phase
Even, computer room wall is secured the appliance to by fixed spiral pin 3, when running ventilation dust-filtering function, is connected by control switch outer
Portion's power supply makes the 17 energization rotation of ventilation fan, and ventilation fan 17, which will rotate forward, to be filtered from outside sucking air, air through oversized particles
When net 18, first the dust of bulky grain is intercepted outside, after device long-time use, a large amount of dusts is sticked on filter plate, needs
When carrying out cleaning, all power supplys of device are first closed, personnel open sealing valve by rotary seal valve handle 22 manually at this time
21, so that outside air and interior circulate, external power supply is connected by control switch at this time and makes the first driving motor 10
It starting turning, the rotation of the first driving motor 10 drives the second external thread rod 5 being coaxially socketed and the second belt pulley 8 to rotate, and second
For belt pulley 8 by sending belt 9 to drive the rotation of the first belt pulley 7, the rotation of the first belt pulley 7 drives the first external screw thread being fixedly connected
Bar 4 rotates, and the first external thread rod 4 and the second external thread rod 5 rotate simultaneously at this time drives 13 decline of internal screw thread cleaning circle, internal screw thread
Cleaning circle 13 declines so that cleaning brush 133 cleans two sides activated charcoal strainer 14 and the dust on dust filtering strainer 15,
By controlling forward and reverse rotation of the first driving motor 10, so that about 13 internal screw thread cleaning circle cleans back and forth, pass through control at this time
Switch connection external power supply processed makes the energization rotation of dust-absorbing fan 20, and the dust under inner brush is drawn discharge by the rotation of dust-absorbing fan 20,
Connecting external power supply by control switch simultaneously rotates the second driving motor 11, and the rotation of the second driving motor 11, which drives, to be fixed
The third external thread rod 6 of connection rotates, and the rotation of third external thread rod 6 drives the long body cleaning brush 16 of internal screw thread to decline, and passes through control
The forward and reverse rotation of second driving motor 11, the long body cleaning brush 16 of internal screw thread back and forth clean dust filtering strainer 15, pass through at this time
Control switch connects external power supply and ventilation fan 17 is rotated backward, by tiny dust blowing out device.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of communication base station room dust filtering ventilation device, including computer room wall (1), it is characterised in that: the computer room wall (1)
Right side wall be provided with supporter (2), the left end of the supporter (2) is provided through two groups of fixed spiral pins (3), the support
It is provided through the first external thread rod (4) between on the left of two wall of inner cavity of body (2), is passed through on the right side of first external thread rod (4)
It wears and is equipped with the second external thread rod (5), be provided through third external thread rod (6), institute on the right side of second external thread rod (5)
The top for stating the first external thread rod (4) is socketed with the first belt pulley (7), and is socketed with above second external thread rod (5)
Two belt pulleys (8) are provided with feed belt (9), outside described second between first belt pulley (7) and the second belt pulley (8)
It is provided with above threaded rod (5) the first driving motor (10), and the output shaft and the second external screw thread of the first driving motor (10)
The upper end of bar (5) is fixedly connected by shaft coupling, and the right side at the top of the supporter (2) is fixedly connected with the second driving motor
(11), and the output shaft of the second driving motor (11) is fixedly connected with the upper end of third external thread rod (6) by shaft coupling, described
It is fixedly connected at the top of supporter (2) fixed case (12), the top of first driving motor (10) and fixed case (12) inner cavity
Portion is fixedly connected, and the surface of first external thread rod (4) and the second external thread rod (5) is socketed with internal screw thread cleaning circle (13),
And internal screw thread cleaning circle (13) is flexibly connected by screw thread with the first external thread rod (4) and the second external thread rod (5), described the
It is provided on the left of one external thread rod (4) activated charcoal strainer (14), second external thread rod (5) and third external thread rod
(6) it is provided between dust filtering strainer (15), the thread surface of the third external thread rod (6) is socketed with the long body cleaning brush of internal screw thread
(16), and third external thread rod (6) is flexibly connected with the long body cleaning brush (16) of internal screw thread by screw thread, in the supporter (2)
It is fixedly connected with ventilation fan (17) between the right side of chamber side wall, is fixedly connected between the right end of supporter (2) intracavity sidewall
Have bulky grain strainer (18), the lower wall of the supporter (2) is provided with dust mouth (19), dust mouth (19) inner cavity it is upper
End is fixedly connected with dust-absorbing fan (20), and the inner cavity lower end of the dust mouth (19) is provided with sealing valve (21), the sealing valve
(21) bottom is fixedly connected with sealing valve handle (22), first driving motor (10), the second driving motor (11), ventilation
Fan (17) is electrically connected by control switch and external power supply with dust-absorbing fan (20).
2. a kind of communication base station room dust filtering ventilation device according to claim 1, it is characterised in that: the internal screw thread is clear
Clean circle (13) includes support frame (131), is provided with internal thread hole (132), institute at left and right sides of the support frame (131)
The outside surrounding for stating support frame (131) is evenly arranged with cleaning brush (133).
3. a kind of communication base station room dust filtering ventilation device according to claim 1, it is characterised in that: the first outer spiral shell
The both ends of rasp bar (4), the second external thread rod (5) and third external thread rod (6) pass through bearing activity with the side wall of supporter (2)
Connection.
4. a kind of communication base station room dust filtering ventilation device according to claim 1, it is characterised in that: the active carbon mistake
Strainer (14) is fixedly connected with supporter (2) inner sidewall both ends, the right side wall and internal screw thread of the activated charcoal strainer (14)
The left end of cleaning circle (13) fits closely.
5. a kind of communication base station room dust filtering ventilation device according to claim 1, it is characterised in that: the dust filtration strainer
(15) it is fixedly connected with supporter (2) inner sidewall both ends, left side wall and the internal screw thread cleaning of the dust filtration strainer (15) are enclosed
(13) right end fits closely.
6. a kind of communication base station room dust filtering ventilation device according to claim 1, it is characterised in that: the dust mouth
(19) it is set to the first external thread rod (4) and the second external thread rod (5) intermediate underface, and the sizes values of dust mouth (19) are close
The distance between approximately equal to the first external thread rod (4) and the second external thread rod (5) value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719424.3U CN209462848U (en) | 2018-10-23 | 2018-10-23 | A kind of communication base station room dust filtering ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821719424.3U CN209462848U (en) | 2018-10-23 | 2018-10-23 | A kind of communication base station room dust filtering ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209462848U true CN209462848U (en) | 2019-10-01 |
Family
ID=68037265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821719424.3U Expired - Fee Related CN209462848U (en) | 2018-10-23 | 2018-10-23 | A kind of communication base station room dust filtering ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209462848U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099482A (en) * | 2019-12-23 | 2020-05-05 | 森赫电梯股份有限公司 | Elevator car ventilation cleaning device |
| CN111249847A (en) * | 2020-03-17 | 2020-06-09 | 杭州众维自动化技术有限公司 | Dust collector and control system based on street sweeper |
| CN112218475A (en) * | 2020-10-14 | 2021-01-12 | 刘元昌 | Arrangement structure of communication host in machine room |
| CN114190044A (en) * | 2021-11-25 | 2022-03-15 | 北京九九之声科技有限公司 | Alarm device based on electromagnetic wave emission base |
-
2018
- 2018-10-23 CN CN201821719424.3U patent/CN209462848U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099482A (en) * | 2019-12-23 | 2020-05-05 | 森赫电梯股份有限公司 | Elevator car ventilation cleaning device |
| CN111249847A (en) * | 2020-03-17 | 2020-06-09 | 杭州众维自动化技术有限公司 | Dust collector and control system based on street sweeper |
| CN112218475A (en) * | 2020-10-14 | 2021-01-12 | 刘元昌 | Arrangement structure of communication host in machine room |
| CN114190044A (en) * | 2021-11-25 | 2022-03-15 | 北京九九之声科技有限公司 | Alarm device based on electromagnetic wave emission base |
| CN114190044B (en) * | 2021-11-25 | 2023-12-29 | 北京九九之声科技有限公司 | Alarm device based on electromagnetic wave emission base |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209462848U (en) | A kind of communication base station room dust filtering ventilation device | |
| CN207335084U (en) | A kind of automatically cleaning fresh air system | |
| CN205458403U (en) | Automatic change device on inside and outside two sides of cleaned glass | |
| CN110701686A (en) | Fresh air cabinet type air conditioner indoor unit | |
| CN218636860U (en) | New trend system electrical control cabinet structure | |
| CN113028511B (en) | Energy-saving environment-friendly heat supply full fresh air conditioner | |
| CN110802095A (en) | Dust removal device and method for cigarette filter stick forming machine and cigarette filter stick forming machine | |
| CN201133696Y (en) | Environment-friendly device for purifying outdoor air and introducing to indoor room | |
| CN211372701U (en) | New fan of in-band circulation function | |
| CN115264736A (en) | Air purifier | |
| CN215809064U (en) | New fan and rack | |
| CN210900190U (en) | Be used for communication base station computer lab ventilation dust collecting equipment | |
| CN208779630U (en) | Remove formaldehyde, disinfect two-way flow dual cycle new fan | |
| CN215421299U (en) | Cabinet cooling fresh air device | |
| CN221724445U (en) | Self-cleaning device for air conditioner filter | |
| CN220771331U (en) | High-efficient return air inlet device that disinfects | |
| CN207440676U (en) | A kind of display screen of remote controlled switch | |
| CN105999898A (en) | Portable air purifier | |
| CN211233256U (en) | New fan with air mixing mode | |
| CN214891699U (en) | Filter convenient to clean for air conditioner pipeline | |
| CN118654374B (en) | Self-adaptive control system and method for intelligent purification fresh air machine | |
| CN205611683U (en) | A sterilization equipment for zongzi | |
| CN216291479U (en) | Electronic information communication base station | |
| CN216114363U (en) | Fresh air processing device and air conditioner indoor unit | |
| CN218296166U (en) | Fresh air equipment convenient to adjust amount of wind size |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20201023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |