CN109041481A - A kind of Novel Communication case - Google Patents
A kind of Novel Communication case Download PDFInfo
- Publication number
- CN109041481A CN109041481A CN201810949666.XA CN201810949666A CN109041481A CN 109041481 A CN109041481 A CN 109041481A CN 201810949666 A CN201810949666 A CN 201810949666A CN 109041481 A CN109041481 A CN 109041481A
- Authority
- CN
- China
- Prior art keywords
- side wall
- air
- novel communication
- communication case
- plate
- 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.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 57
- 239000000428 dust Substances 0.000 claims abstract description 43
- 238000007664 blowing Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000001680 brushing effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of Novel Communication casees, including mobile mechanism, cooling mechanism and dedusting mechanism, the mobile mechanism is made of bottom plate, electric telescopic rod, movable plate, fixed plate and support leg, cooling mechanism is made of air inlet fan, air-inlet grille, air outlet grate and blowing machine, and dedusting mechanism is made of motor, screw rod, brush board, dust catcher and filter.The flexible drive support leg of electric telescopic rod is controlled by controller and rises and be detached from ground, so that universal wheel is contacted ground, can be moved the Novel Communication case, greatly facilitate the use of staff；By air inlet fan and blowing machine, can radiate to the communication equipment in the Novel Communication case, which has good heat dissipation effect；Motor and dust catcher are opened by controller, brush board is driven to move up and down on screw rod, by under the dust brush on air-inlet grille and filter, dust catcher is siphoned away the dust under brushing by sweep-up pipe, which can be with automatic dust removing.
Description
Technical field
The present invention relates to technical field of communication equipment, specifically a kind of Novel Communication case.
Background technique
In the rapid development of modern science level, occur radio, fixed-line telephone, mobile phone, internet in succession very
To the various communication modes such as visual telephone.The communication technology has furthered interpersonal distance, improves economic efficiency, deeply
Ground changes the life style and the social physiognomy of the mankind, and with the maturation of Communication in China technology, the use of communication box is also increasingly
It is more, due to being equipped with a large amount of power equipment in communication box, thus a large amount of heat that will be generated, when electric appliance is long in communication box
Between work in the hot environment, it will the service life for greatly shortening electrical equipment, influence using；Simultaneously as dust into
Enter in communication box, covering on a communications device, cause equipment operation it is unsmooth, influence using；In addition, existing communication case needs to move
When, it to be carried by staff, increase the amount of labour of staff, it has not been convenient to the use of staff.
Summary of the invention
The purpose of the present invention is to provide a kind of Novel Communication casees, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of Novel Communication case, including mobile mechanism, cooling mechanism and dedusting mechanism, the mobile mechanism by bottom plate, electronic stretch
Contracting bar, movable plate, fixed plate and support leg composition, cooling mechanism is by air inlet fan, air-inlet grille, air outlet grate and outlet air unit
At dedusting mechanism is made of motor, screw rod, brush board, dust catcher and filter.
As a further solution of the present invention: the fixed board ends are fixedly connected with left side wall and right side wall, and fixed plate can
To be used to install communication equipment, the electric telescopic rod upper end is fixedly connected at the center of fixed plate lower end surface, electric expansion
Bar lower end is fixedly connected with the center of movable plate, and movable plate left and right ends are mounted on pulley, left side wall and right side wall lower inside
It is equipped with sliding slot, movable plate is slidably connected at sliding slot with left side wall and right side wall by pulley, and bottom plate is equipped with aperture, support
Foot upper end passes through aperture and is fixedly connected with movable plate.
As further scheme of the invention: the lower end surface of the bottom plate is connected with universal wheel by connector, electronic
Telescopic rod and controller are electrically connected, and when needing to move the Novel Communication case, can control electric telescopic rod by controller
Flexible that movable plate is driven to rise, movable plate rises and then support leg is driven to rise and be detached from ground, and universal wheel is made to contact ground, this
Sample can move the Novel Communication case, after the completion of mobile, then control electric telescopic rod by controller and drive movable plate and branch
Support foot declines and supports the Novel Communication case, and can arbitrarily adjust the height of the Novel Communication case, is easy to use.
As further scheme of the invention: the air inlet fan is mounted on the left side of left side wall, and blowing machine is mounted on the right side
Air-inlet grille and air outlet grate, the position of air-inlet grille and air outlet grate are respectively equipped on the right side of side wall, left side wall and right side wall
It sets corresponding with the position of air inlet fan and blowing machine.
As further scheme of the invention: being respectively connected with dust cover on the outside of the air inlet fan and blowing machine, avoid
Dust in external environment is attached on air inlet fan and blowing machine, and air inlet fan and blowing machine are electrically connected with controller, control
Device is installed on the upper surface of top plate, opens air inlet fan and blowing machine by controller, can be to logical in the Novel Communication case
Letter equipment radiates.
As further scheme of the invention: the motor is fixedly mounted on the upper surface of top plate at left end, electricity
The output shaft of machine is connected with screw rod, and screw rod upper end is connect by bearing with top plate bearing, and screw rod is equipped with external screw thread, is set in brush board
It is equipped with the internal screw thread being used cooperatively with external screw thread, brush board is connected by internal screw thread with screw flight, and filter is vertically-mounted, dust-separation
Net upper and lower ends connect top plate and fixed plate, and for completely cutting off dust contained in air, the left and right ends of brush board are set filter
There is bristle, bristle is contacted with filter and air-inlet grille, and inner cavity is formed between filter and air-inlet grille.
As further scheme of the invention: the dust catcher is installed on left side wall and connects sweep-up pipe, sweep-up pipe
It is connected to the bottom of inner cavity；Motor and dust catcher are electrically connected with controller, open motor and dust catcher, electricity by controller
Machine drives screw rod rotation, using external screw thread and internal screw thread, drives brush board to move up and down on screw rod, by air-inlet grille and filter
On dust brush under, dust catcher by sweep-up pipe by brush under dust siphon away, realize the purpose of dedusting.
Compared with prior art, the beneficial effects of the present invention are:
1, the flexible drive support leg of electric telescopic rod is controlled by controller and rises and be detached from ground, universal wheel is made to contact ground,
The Novel Communication case can be thus moved, the use of staff is greatly facilitated.
2, air inlet fan and blowing machine are opened by controller, the communication equipment in the Novel Communication case can be carried out scattered
Heat, the Novel Communication case have good heat dissipation effect.
3, motor and dust catcher are opened by controller, brush board are driven to move up and down on screw rod, by air-inlet grille and every
Under the online dust brush of dirt, dust catcher is siphoned away the dust under brushing by sweep-up pipe, which can be with automatic dust removing.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of screw rod 5 and brush board 9 in the present invention.
Fig. 3 is the enlarged structure schematic diagram of part A in the present invention.
In figure: 1- bottom plate, 2- left side wall, 3- sweep-up pipe, 4- dust catcher, 5- screw rod, 6- air inlet fan, 7- dust cover, 8- into
Gas grid, 9- brush board, 10- motor, 11- filter, 12- air outlet grate, 13- blowing machine, 14- communication equipment, 15- fixed plate,
16- aperture, 17- support leg, 18- universal wheel, 19- electric telescopic rod, 20- movable plate, 21- connector, 22- bristle, the outer spiral shell of 23-
Line, 24- internal screw thread, 25- sliding slot, 26- pulley, 27- bearing, 28- right side wall, 29- controller, 30- top plate, the inner cavity 31-.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of Novel Communication case, including mobile mechanism, cooling mechanism and remove
Dirt mechanism.
Mobile mechanism is made of bottom plate 1, electric telescopic rod 19, movable plate 20, fixed plate 15 and support leg 17, the fixation
15 both ends of plate are fixedly connected with left side wall 2 and right side wall 28, and fixed plate 5 can be used to install communication equipment 14, the electric expansion
19 upper end of bar is fixedly connected at the center of 15 lower end surface of fixed plate, and 19 lower end of electric telescopic rod is fixedly connected in movable plate 20
The heart, 20 left and right ends of movable plate are mounted on pulley 26, and left side wall 2 and 28 lower inside of right side wall are equipped with sliding slot 25, mobile
Plate 20 is slidably connected at sliding slot 25 with left side wall 2 and right side wall 28 by pulley 26, and bottom plate 1 is equipped with aperture 16, support leg
17 upper ends pass through aperture 16 and are fixedly connected with movable plate 20, and the lower end surface of bottom plate 1 is connected with universal wheel 18 by connector 21, electricity
Dynamic telescopic rod 19 is electrically connected with controller 29, when needing to move the Novel Communication case, can control electricity by controller 29
Dynamic telescopic rod 19 is flexible to drive movable plate 20 to rise, and movable plate 20 rises and then drives support leg 17 to rise and be detached from ground, makes
Universal wheel 18 contacts ground, can thus move the Novel Communication case, after the completion of mobile, then is controlled by controller 29 electronic
Telescopic rod 19 drives movable plate 20 and support leg 17 to decline and support the Novel Communication case, and it is novel logical arbitrarily to adjust this
The height of mailbox is easy to use.
Cooling mechanism is made of air inlet fan 6, air-inlet grille 8, air outlet grate 12 and blowing machine 13, and the air inlet fan 6 is installed
In the left side of left side wall 2, blowing machine 13 is mounted on the right side of right side wall 28, is respectively equipped with air inlet on left side wall 2 and right side wall 28
The position of grid 8 and air outlet grate 12, air-inlet grille 8 and air outlet grate 12 is corresponding with the position of air inlet fan 6 and blowing machine 13,
It is respectively connected with dust cover 7 on the outside of air inlet fan 6 and blowing machine 13, the dust in external environment is avoided and is attached to air inlet fan 6 and goes out
On blower 13, air inlet fan 6 and blowing machine 13 are electrically connected with controller 29, and controller 29 is installed on the upper surface of top plate 30
On, air inlet fan 6 and blowing machine 13 are opened by controller 29, the communication equipment 14 in the Novel Communication case can be carried out scattered
Heat.
Dedusting mechanism is made of motor 10, screw rod 5, brush board 9, dust catcher 4 and filter 11, and the motor 10 is fixedly mounted
In the upper surface of top plate 30 at left end, the output shaft and screw rod 5 of motor 10 are connected, and 5 upper end of screw rod passes through bearing 27 and top
The connection of 30 bearing of plate, screw rod 5 are equipped with external screw thread 23, are provided with the internal screw thread 24 being used cooperatively with external screw thread 23 in brush board 9, brush
Plate 9 is threadedly coupled by internal screw thread 24 and screw rod 5, and filter 11 is vertically-mounted, and 11 upper and lower ends of filter connect 30 He of top plate
Fixed plate 15, filter 11 are equipped with bristle 22, bristle 22 for completely cutting off dust contained in air, the left and right ends of brush board 9
It is contacted with filter 11 and air-inlet grille 8, forms inner cavity 31 between filter 11 and air-inlet grille 8, dust catcher 4 is installed on left side
On wall 2 and sweep-up pipe 3 is connected, sweep-up pipe 3 is connected to the bottom of inner cavity 31；Motor 10 and dust catcher 4 are electrical with controller 29
Connection opens motor 10 and dust catcher 4 by controller 29, and motor 10 drives screw rod 5 to rotate, utilizes external screw thread 23 and internal screw thread
24, drive brush board 9 to move up and down on screw rod 5, by under the dust brush on air-inlet grille 8 and filter 11, dust catcher 4 passes through suction
Dirt pipe 3 siphons away the dust under brushing, and realizes the purpose of dedusting.
The working principle of the invention is:
It controls the flexible drive movable plate 20 of electric telescopic rod 19 by controller 29 to rise, movable plate 20, which rises and then drives, to be supported
Foot 17 rises and is detached from ground, and universal wheel 18 is made to contact ground, can thus move the Novel Communication case, after the completion of mobile,
Controlling electric telescopic rod 19 by controller 29 again drives movable plate 20 and support leg 17 to decline and support the Novel Communication case,
And the height of the Novel Communication case can be arbitrarily adjusted, it is easy to use；Air inlet fan 6 and blowing machine 13 are opened by controller 29,
It can radiate to the communication equipment 14 in the Novel Communication case.Motor 10 and dust catcher 4, motor are opened by controller 29
10 drive screw rods 5 to rotate, and using external screw thread 23 and internal screw thread 24, brush board 9 are driven to move up and down on screw rod 5, and then by air inlet
Under dust brush on grid 8 and filter 11, dust catcher 4 is siphoned away the dust under brushing by sweep-up pipe 3, realizes the mesh of dedusting
's.
It should be strongly noted that the Novel Communication case solves the problems, such as that communication box radiates in the application；Also it solves
Accumulation dust in communication box of having determined influences the problem of using, while it is mobile also to efficiently solve the problems, such as that communication box is difficult to.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of Novel Communication case, including cabinet and mobile mechanism, which is characterized in that the cabinet includes bottom plate (1), left side wall
(2) and right side wall (28), mobile mechanism is by electric telescopic rod (19), movable plate (20), fixed plate (15) and support leg (17) group
At fixed plate (15) both ends are fixedly connected with left side wall (2) and right side wall (28), and electric telescopic rod (19) upper end is fixed
It is connected at the center of fixed plate (15) lower end surface, electric telescopic rod (19) lower end is fixedly connected with the center of movable plate (20), bottom
Plate (1) is equipped with aperture (16), and support leg (17) upper end passes through aperture (16) and is fixedly connected with movable plate (20).
2. Novel Communication case according to claim 1, which is characterized in that the lower end surface of the bottom plate (1) passes through connector
(21) it is connected with universal wheel (18), electric telescopic rod (19) and controller (29) are electrically connected.
3. Novel Communication case according to claim 1, which is characterized in that movable plate (20) left and right ends are mounted on
Pulley (26), left side wall (2) and right side wall (28) lower inside are equipped with sliding slot (25), and movable plate (20) is existed by pulley (26)
It is slidably connected at sliding slot (25) with left side wall (2) and right side wall (28).
4. Novel Communication case according to claim 1, which is characterized in that the Novel Communication case further includes cooling mechanism,
Cooling mechanism is made of air inlet fan (6), air-inlet grille (8), air outlet grate (12) and blowing machine (13), air inlet fan (6) peace
Mounted in the left side of left side wall (2), blowing machine (13) is mounted on the right side of right side wall (28), on left side wall (2) and right side wall (28)
It is respectively equipped with air-inlet grille (8) and air outlet grate (12), the position and air inlet fan (6) of air-inlet grille (8) and air outlet grate (12)
It is corresponding with the position of blowing machine (13).
5. Novel Communication case according to claim 4, which is characterized in that the air inlet fan (6) and blowing machine (13) with
Controller (29) is electrically connected, and controller (29) is installed on the upper surface of top plate (30).
6. Novel Communication case according to claim 5, which is characterized in that on the outside of the air inlet fan (6) and blowing machine (13)
It is respectively connected with dust cover (7).
7. Novel Communication case according to claim 1, which is characterized in that the Novel Communication case further includes dedusting mechanism,
Dedusting mechanism is made of motor (10), screw rod (5), brush board (9), dust catcher (4) and filter (11), and the motor (10) is fixed
The upper surface of top plate (30) is mounted at left end, output shaft and screw rod (5) connection of motor (10), screw rod (5) are equipped with
External screw thread (23), brush board (9) is interior to be provided with the internal screw thread (24) being used cooperatively with external screw thread (23), and brush board (9) passes through internal screw thread
(24) it is threadedly coupled with screw rod (5), filter (11) is vertically-mounted, and filter (11) upper and lower ends connect top plate (30) and fixed
The left and right ends of plate (15), brush board (9) are equipped with bristle (22), and bristle (22) is contacted with filter (11) and air-inlet grille (8), every
Inner cavity (31) are formed between dirt net (11) and air-inlet grille (8).
8. Novel Communication case according to claim 7, which is characterized in that screw rod (5) upper end by bearing (27) with
The connection of top plate (30) bearing.
9. Novel Communication case according to claim 7, which is characterized in that the dust catcher (4) is installed on left side wall (2)
And sweep-up pipe (3) are connected, sweep-up pipe (3) is connected to the bottom of inner cavity (31)；Motor (10) and dust catcher (4) are and controller
(29) it is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949666.XA CN109041481A (en) | 2018-08-20 | 2018-08-20 | A kind of Novel Communication case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949666.XA CN109041481A (en) | 2018-08-20 | 2018-08-20 | A kind of Novel Communication case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109041481A true CN109041481A (en) | 2018-12-18 |
Family
ID=64632158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810949666.XA Pending CN109041481A (en) | 2018-08-20 | 2018-08-20 | A kind of Novel Communication case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109041481A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699136A (en) * | 2019-01-28 | 2019-04-30 | 安徽省康宇水电机械成套设备有限公司 | A kind of construction site removable electric cabinet |
| CN110761229A (en) * | 2019-10-17 | 2020-02-07 | 江良峰 | Cobblestone road sweeper |
| CN110831357A (en) * | 2019-10-28 | 2020-02-21 | 大唐水电科学技术研究院有限公司 | Automatic change control cabinet |
| CN111610842A (en) * | 2020-05-20 | 2020-09-01 | 郑州铁路职业技术学院 | Computer modularization power supply module protection device |
| CN111885887A (en) * | 2020-07-28 | 2020-11-03 | 郑州师范学院 | Industrial control network security isolation device |
| CN112105192A (en) * | 2020-09-15 | 2020-12-18 | 庄培明 | Dustproof electric appliance cabinet |
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| CN203578329U (en) * | 2013-12-11 | 2014-05-07 | 漯河医学高等专科学校 | Dust removal device for computer cabinet |
| CN206685715U (en) * | 2017-02-17 | 2017-11-28 | 刘海明 | A kind of communication box with dedusting cooling function |
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| CN107551284A (en) * | 2017-09-29 | 2018-01-09 | 郑州仁宏医药科技有限公司 | The multiple medical disinfection unit of sterilizing type |
| CN107694977A (en) * | 2017-11-22 | 2018-02-16 | 南昌安润科技有限公司 | A kind of contactor production cleaner |
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| CN107898382A (en) * | 2017-10-24 | 2018-04-13 | 郑州格瑞塔电子信息技术有限公司 | The automatic chock dust remover of factory |
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| CN203578329U (en) * | 2013-12-11 | 2014-05-07 | 漯河医学高等专科学校 | Dust removal device for computer cabinet |
| CN206685715U (en) * | 2017-02-17 | 2017-11-28 | 刘海明 | A kind of communication box with dedusting cooling function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109699136A (en) * | 2019-01-28 | 2019-04-30 | 安徽省康宇水电机械成套设备有限公司 | A kind of construction site removable electric cabinet |
| CN110761229A (en) * | 2019-10-17 | 2020-02-07 | 江良峰 | Cobblestone road sweeper |
| CN110761229B (en) * | 2019-10-17 | 2021-11-23 | 山东易斯特工程工具有限公司 | Cobblestone road sweeper |
| CN110831357A (en) * | 2019-10-28 | 2020-02-21 | 大唐水电科学技术研究院有限公司 | Automatic change control cabinet |
| CN111610842A (en) * | 2020-05-20 | 2020-09-01 | 郑州铁路职业技术学院 | Computer modularization power supply module protection device |
| CN111885887A (en) * | 2020-07-28 | 2020-11-03 | 郑州师范学院 | Industrial control network security isolation device |
| CN112105192A (en) * | 2020-09-15 | 2020-12-18 | 庄培明 | Dustproof electric appliance cabinet |
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Application publication date: 20181218 |