CN108266046A - A kind of dust-proof guardrail of construction with self-cleaning function - Google Patents
A kind of dust-proof guardrail of construction with self-cleaning function Download PDFInfo
- Publication number
- CN108266046A CN108266046A CN201810071220.1A CN201810071220A CN108266046A CN 108266046 A CN108266046 A CN 108266046A CN 201810071220 A CN201810071220 A CN 201810071220A CN 108266046 A CN108266046 A CN 108266046A
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- Prior art keywords
- vertical
- vertical column
- dust
- rotating bar
- construction
- Prior art date
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 241001622623 Coeliadinae Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
-
- B08B1/12—
-
- B08B1/32—
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
Abstract
The invention discloses a kind of dust-proof guardrails of the construction with self-cleaning function, including rectangular base, the rectangular base upper surface is equipped with vertical column, the vertical column is hollow shell, the vertical column upper surface front end is machined with No.1 circular open, No.1 rolling bearing is embedded in the No.1 circular open, lower surface is equipped with No. two rolling bearings corresponding with No.1 rolling bearing in the vertical column, the vertical rotating bar of No.1 mutually overlapped with No.1 rolling bearing and No. two rolling bearings is equipped in the vertical column, No.1 vertical rotating bar side surface upper end is equipped with No.1 drive.The invention has the advantages that use can either carry out isolating and protecting to space in building construction process, moreover it is possible to have certain dustproof effect, avoid the dust diffusion pollution environment generated in work progress.The present apparatus is also equipped with self-cleaning function simultaneously, cleans up the dust being attached on Air Filter, facilitates next use.
Description
Technical field
The present invention relates to the dust-proof guardrail field of construction, particularly a kind of construction with self-cleaning function is dust-proof
Guardrail.
Background technology
Construction refers to the production activity of engineering construction implementation phase, is the building course of all kinds of buildings, can also
It says it is various lines on design drawing, in specified place, becomes process in kind.It includes basic engineering construction, master
Body structure construction, roof construction, decorative engineering construction etc..The place of construction operation is known as " construction site " or cries
" construction site ", is also named building site.In the construction process, it for the personal safety of environmental protection and people around, can usually set
Protective fence.
In existing technology, application number:201620590024.1 in the patent of entitled construction guardrail, knot
Structure is simple, and installation storage is convenient, and the length and height of construction guardrail is adjusted, and increases whole stability.
It, usually can be along with volume of smoke, if surrounding ring will be influenced by being allowed to diffusion however during practice of construction
Border, therefore protective fence should also have dust-proof effect while isolating and protecting is carried out to space.However the protection in above-mentioned patent
Column does not have this function clearly.And dust-proof guardrail can be infected with many dusts when in use, therefore this kind of guardrail also needs to have
The function of standby dust cleaning.It is necessary to a kind of this design dust-proof guardrail of construction with self-cleaning function.
Invention content
The purpose of the present invention is to solve the above problems, and it is dust-proof to devise a kind of construction with self-cleaning function
Guardrail.
Realize above-mentioned purpose the technical scheme is that, a kind of dust-proof guardrail of construction with self-cleaning function,
Including rectangular base, which is characterized in that the rectangular base upper surface is equipped with vertical column, and the vertical column is hollow shell
Body, the outer surface of the vertical column are provided with reflecting sign, and reflecting sign includes one section of adhesive tape and is pasted onto tape surface
On reflective sheeting, the shape of reflecting sign is warning word, and sunlight sensor, control are additionally provided on the outside of the vertical column
Device processed, power supply and LED waterproof warning lamps, sunlight sensor interval sampling measure light Data Concurrent and send to controller, daytime sun
The sampling interval of optical sensor is more than the sampling interval at dusk or night, when the measurement data of sunlight sensor is less than setting threshold
Controller is opened LED waterproof warning lamps and is warned during value, is controlled when the measurement data of sunlight sensor is higher than given threshold
Device is closed LED waterproof warning lamps and is warned using reflecting sign;The vertical column upper surface front end is machined with No.1 circle
Opening, the interior lower surface in No.1 rolling bearing, the vertical column of the No.1 circular open is equipped with and No.1 rotates
Corresponding No. two rolling bearings of bearing, interior be equipped with of the vertical column mutually overlap with No.1 rolling bearing and No. two rolling bearings
The vertical rotating bar of No.1, No.1 vertical rotating bar side surface upper end is equipped with No.1 drive, and the No.1 rotates vertically
Bar side surface and vertical cylinder is equipped with below the No.1 drive, the vertical column right lateral surface front end is machined with vertical item
Shape is open, and the vertical cylinder is equipped with the Air Filter that is stretched out from vertical strip gab, the Air Filter be located at vertical column it
Outer one end is equipped with vertical limiting plate, two surfaces and positioned at No.1 rolling bearing and No. two rotations up and down in the vertical column
No. three rolling bearings are equipped on rear side of bearing, No. two vertical rotations mutually overlapped with No. three rolling bearings are equipped in the vertical column
Bar, described No. two vertical rotating bar side surfaces upper end are equipped with No. two drives to match with No.1 drive, and the No.1 passes
It is sequentially connected between driving wheel and No. two drives by No.1 transmission belt, described No. two vertical rotating bar side surfaces lower end is set
There are No. three drives, the vertical column right lateral surface lower end and be equipped with horizontal strip gab positioned at vertical strip gab rear,
The vertical column right lateral surface upper and lower ends and it is respectively equipped with No.1 horizontal mounting plate and two positioned at vertical strip gab rear
Number horizontal mounting plate, the No.1 horizontal mounting plate lower surface and No. two horizontal mounting plate on the surface are equipped with No. four rotation axis
It holds, is equipped with and No. four rolling bearings on the right side of the vertical column and between No.1 horizontal mounting plate and No. two horizontal mounting plates
Mutually No. three vertical rotating bars of overlap joint, described No. three vertical rotating bar side surfaces lower end are equipped with No. four drives, No. three biographies
It is sequentially connected between driving wheel and No. four drives by No. two conveyer belts, No. two conveyer belts are stretched from horizontal strip gab
Go out, described No. three vertical rotating bar side surfaces and be set with replaceable rotating brush above No. four drives, it is described to replace
Rotating brush is changed mutually to overlap with Air Filter side surface.
The vertical rotating bar upper end of the No.1 and fold-type shake handle is equipped with above No.1 circular open.
The vertical limiting plate side surface is equipped with a pair of link up with.
The vertical column left-hand face is equipped with a pair of of the hanging ring to match with a pair of of hook.
The rectangular base lower surface is equipped with non-slip mat.
The dust-proof guardrail of a kind of construction with self-cleaning function made using technical scheme of the present invention, is being built
Use can either carry out isolating and protecting to space in work progress, moreover it is possible to have certain dustproof effect, avoid in work progress
The dust diffusion pollution environment of generation.The present apparatus is also equipped with self-cleaning function simultaneously, cleans up the dust being attached on Air Filter,
Facilitate next use.
Description of the drawings
Fig. 1 is a kind of structure diagram of the dust-proof guardrail of construction with self-cleaning function of the present invention;
Fig. 2 is a kind of side cutaway view of the dust-proof guardrail of construction with self-cleaning function of the present invention;
Fig. 3 is a kind of rear pseudosection of the dust-proof guardrail of construction with self-cleaning function of the present invention;
In figure, 1, rectangular base;2nd, vertical column;3rd, No.1 circular open;4th, No.1 rolling bearing;5th, No. two rotation axis
It holds;6th, the vertical rotating bar of No.1;7th, No.1 drive;8th, vertical cylinder;9th, vertical strip gab;10th, Air Filter;11st, it is vertical
Limiting plate;12nd, No. three rolling bearings;13rd, No. two vertical rotating bars;14th, No. two drives;15th, No.1 transmission belt;16th, No. three
Drive;17th, horizontal strip gab;18th, No.1 horizontal mounting plate;19th, No. two horizontal mounting plates;20th, No. four rolling bearings;
21st, No. three vertical rotating bars;22nd, No. four drives;23rd, No. two conveyer belts;24th, replaceable rotating brush;25th, fold-type shakes handle
Hand;26th, it links up with;27th, hanging ring;28th, non-slip mat.
Specific embodiment
The present invention is specifically described below in conjunction with the accompanying drawings, as shown in Figs. 1-3, a kind of building with self-cleaning function
It constructs dust-proof guardrail, including rectangular base 1,1 upper surface of rectangular base is equipped with vertical column 2, and the vertical column 2 is sky
Heart housing, the vertical 2 upper surface front end of column are machined with No.1 circular open 3, one are embedded in the No.1 circular open 3
Number rolling bearing 4, lower surface is equipped with and 4 corresponding No. two rolling bearings 5 of No.1 rolling bearing, institute in the vertical column 2
State the vertical rotating bar 6 of No.1 being equipped in vertical column 2 with No.1 rolling bearing 4 and No. two 5 phase of rolling bearing overlap joints, described one
Number vertical 6 side surface upper end of rotating bar is equipped with No.1 drive 7, vertical 6 side surface of rotating bar of the No.1 and is passed positioned at No.1
7 lower section of driving wheel is equipped with vertical cylinder 8, and the vertical 2 right lateral surface front end of column is machined with vertical strip gab 9, described vertical
Cylinder 8 is equipped with the Air Filter 10 stretched out from vertical strip gab 9, and the Air Filter 10 is located at one except vertical column 2
End is equipped with vertical limiting plate 11, two surfaces and positioned at No.1 rolling bearing 4 and No. two rolling bearings up and down in the vertical column 2
5 rear sides are equipped with No. three rolling bearings 12, interior No. two vertical turn be equipped with No. three 12 phases of rolling bearing overlap joints of the vertical column 2
Lever 13, described No. two vertical 13 side surface upper ends of rotating bar are equipped with No. two drives 14 to match with No.1 drive 7, institute
It states and is sequentially connected between No.1 drive 7 and No. two drives 14 by No.1 transmission belt 15, described No. two vertical rotations
13 side surface lower end of bar is equipped with No. three drives 16, the vertical 2 right lateral surface lower end of column and after vertical strip gab 9
Distinguish equipped with horizontal strip gab 17, the vertical 2 right lateral surface upper and lower ends of column and positioned at vertical 9 rear of strip gab side
Equipped with No.1 horizontal mounting plate 18 and No. two horizontal mounting plates 19,18 lower surface of No.1 horizontal mounting plate and No. two horizontal peaces
19 upper surface of loading board is equipped with No. four rolling bearings 20, vertical 2 right side of column and positioned at No.1 horizontal mounting plate 18 and two
It is equipped with No. three vertical rotating bars 21 with No. four 20 phases of rolling bearing overlap joints between number horizontal mounting plate 19, described No. three vertical turn
21 side surface lower end of lever is equipped with No. four drives 22, passes through No. two biographies between No. three drives 16 and No. four drives 22
Band 23 is sent to be sequentially connected, No. two conveyer belts 23 are stretched out from horizontal strip gab 17, described No. three vertical rotating bars 21
Side surface and be set with replaceable rotating brush 24 positioned at 22 top of No. four drives, the replaceable rotating brush 24 with it is dust-proof
10 side surface of net mutually overlaps;It vertical 6 upper end of rotating bar of the No.1 and is equipped with fold-type positioned at 3 top of No.1 circular open and shakes handle
Hand 25;11 side surface of vertical limiting plate is equipped with a pair of of hook 26;2 left-hand face of vertical column is equipped with to be linked up with a pair
26 a pair of of the hanging rings 27 to match;1 lower surface of rectangular base is equipped with non-slip mat 28.
The characteristics of the present embodiment is that the present apparatus is single individual first, is by several and this when in use
The identical individual of device be coupled and carries out forming guardrail.When carrying out being isolated dust-proof using the present apparatus, vertical limit is utilized
Position plate 11 pulls out Air Filter 10 from vertical strip gab 9, and is hung on the vertical column 2 of another individual using hook 26
It is fixedly connected on hanging ring 27, the quantity of wherein device individual is determined according to construction area.When needing retracting device
It waits, then fold-type shake handle 25 is shaken, to drive the No.1 rolling bearing 4 and No. two rolling bearings 5 in No.1 circular open 3
The vertical rotating bar 6 of No.1 of support is rotated, and vertical cylinder 8 is driven to wind Air Filter 10.At the same time, No.1 is vertical
Rotating bar 6 also by drive No.1 drive 7 rotate, then the transmission by No.1 transmission belt 15, drive No. two drives 14 and
No. two vertical rotating bars 13 are rotated, and No. two vertical rotating bars 13 are again by No. three drives 16 and from horizontal strip gab 17
No. two conveyer belts 23 stretched out drive No. four drives 22 between No.1 horizontal mounting plate 18 and No. two horizontal mounting plates 19 with
And No. three vertical rotating bars 21 are rotated, wherein No. three vertical rotating bars 21 can freely be turned using No. four rolling bearings 20
It is dynamic.No. three vertical rotating bars 21 drive replaceable rotating brush 24 to be rotated again, to the Air Filter 10 retracted in vertical column 2
Deashing is carried out, use can either be to space progress isolating and protecting in building construction process, moreover it is possible to have certain dustproof effect,
Avoid the dust diffusion pollution environment generated in work progress.The present apparatus is also equipped with self-cleaning function simultaneously, cleans up and is attached to
Dust on Air Filter facilitates next use.
In the present embodiment, the present apparatus is single individual first, is by several and the present apparatus when in use
Identical individual be coupled and carries out forming guardrail.When carrying out being isolated dust-proof using the present apparatus, vertical limiting plate is utilized
11 pull out Air Filter 10 from vertical strip gab 9, and the hanging ring on the vertical column 2 of another individual is hung over using hook 26
It is fixedly connected on 27, the quantity of wherein device individual is determined according to construction area.When retracting device is needed, then
Fold-type shake handle 25 is shaken, to drive No.1 rolling bearing 4 in No.1 circular open 3 and No. two rolling bearings 5 support
The vertical rotating bar 6 of No.1 is rotated, and vertical cylinder 8 is driven to wind Air Filter 10.At the same time, No.1 rotates vertically
Bar 6 will also drive No.1 drive 7 to rotate, then the transmission by No.1 transmission belt 15, drive No. two drives 14 and No. two
Vertical rotating bar 13 is rotated, and No. two vertical rotating bars 13 are stretched out again by No. three drives 16 and from horizontal strip gab 17
No. two conveyer belts 23 drive No. four drives 22 and three between No.1 horizontal mounting plate 18 and No. two horizontal mounting plates 19
Number vertical rotating bar 21 is rotated, wherein No. three vertical rotating bars 21 can be freely rotated using No. four rolling bearings 20.Three
Number vertical rotating bar 21 drives replaceable rotating brush 24 to be rotated again, and to retracting, the Air Filter 10 in vertical column 2 carries out
Deashing.Non-slip mat 28 wherein in rectangular base 1 plays anti-skidding effect.
As being further improved for said program, alarming device is set in the outer surface of vertical column 2.It is existing dust-proof
Guardrail can not play good warning effect usually at dusk, in the case of night or insufficient light, also can not just play it
Protection effect.For this purpose, setting reflecting sign in the outer surface of vertical column 2 first, reflecting sign includes one section of adhesive tape and glues
The reflective sheeting being attached on tape surface, when light shines reflective sheeting back reflection rate higher so that reflecting sign is more easily observed
With the position of dust-proof guardrail.Preferably, the shape of reflecting sign is set for warning word, in this way since, warning effect is more preferably.And
When night, the warning effect of reflecting sign is not so good, therefore, sunlight biography is also additionally provided in the outside of vertical column 2
Sensor, controller, power supply and LED waterproof warning lamps, sunlight sensor is used for light sensing data, when the measurement of sunlight sensor
Controller is opened LED waterproof warning lamps and is warned when data are less than given threshold namely during evening, when the survey of sunlight sensor
Controller is closed LED waterproof warning lamps and is warned using reflecting sign when amount data are higher than given threshold.Further, in order to
The power consumption of processor and controller is reduced, setting sunlight sensor interval sampling measures light Data Concurrent and send to controller, by
Less than the dusk, either night sets the sampling interval of sunlight sensor on daytime to be more than dusk or night to warning demand daytime
Sampling interval can meet warning demand again in the case of further reduce power consumption.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
The principle of the present invention is embodied to some variations that some of which part may be made, belongs to the scope of protection of the present invention it
It is interior.
Claims (5)
1. a kind of dust-proof guardrail of construction with self-cleaning function, including rectangular base (1), which is characterized in that the square
Shape pedestal (1) upper surface is equipped with vertical column (2), and the vertical column (2) is hollow shell, the vertical column (2) it is outer
Side surface is provided with reflecting sign, and reflecting sign includes one section of adhesive tape and the reflective sheeting being pasted onto on tape surface, reflecting sign
Shape be warning word, on the outside of the vertical column (2) being additionally provided with sunlight sensor, controller, power supply and LED prevents
Water warning lamp, sunlight sensor interval sampling measure light Data Concurrent and send to controller, daytime sunlight sensor sampling between
Every more than at dusk or night sampling interval, when sunlight sensor measurement data be less than given threshold when controller open
LED waterproof warning lamps are warned, when sunlight sensor measurement data be higher than given threshold when controller close the anti-water policemen of LED
Show that lamp is warned using reflecting sign;Vertical column (2) the upper surface front end is machined with No.1 circular open (3), described
Embedded with No.1 rolling bearing (4) in No.1 circular open (3), the interior lower surface of the vertical column (2) is equipped with to be rotated with No.1
Corresponding No. two rolling bearings (5) of bearing (4), are equipped in the vertical column (2) and No.1 rolling bearing (4) and No. two turns
The vertical rotating bar of No.1 (6) that dynamic bearing (5) mutually overlaps, the vertical rotating bar of No.1 (6) the side surface upper end are passed equipped with No.1
Driving wheel (7), the vertical rotating bar of No.1 (6) side surface and is equipped with vertical cylinder (8), institute below the No.1 drive (7)
It states vertical column (2) right lateral surface front end and is machined with vertical strip gab (9), the vertical cylinder (8) is equipped with from vertical item
The Air Filter (10) that shape opening (9) is stretched out, the one end of the Air Filter (10) except vertical column (2) are equipped with vertical limit
Position plate (11), two surfaces and after No.1 rolling bearing (4) and No. two rolling bearings (5) up and down in the vertical column (2)
Side is equipped with No. three rolling bearings (12), and No. two mutually overlapped with No. three rolling bearings (12) are equipped in the vertical column (2) and are erected
Straight rotating bar (13), described No. two vertical rotating bar (13) side surface upper ends are equipped with No. two to match with No.1 drive (7)
Drive (14) carries out transmission company between the No.1 drive (7) and No. two drives (14) by No.1 transmission belt (15)
It connects, described No. two vertical rotating bar (13) side surface lower ends are equipped with No. three drives (16), vertical column (2) right lateral surface
Lower end and horizontal strip gab (17) is equipped with positioned at vertical strip gab (9) rear, above and below vertical column (2) right lateral surface
Both ends and No.1 horizontal mounting plate (18) and No. two horizontal mounting plates (19) are respectively equipped with positioned at vertical strip gab (9) rear,
No.1 horizontal mounting plate (18) lower surface and No. two horizontal mounting plate (19) upper surfaces are equipped with No. four rolling bearings (20),
It is equipped with and No. four on the right side of the vertical column (2) and between No.1 horizontal mounting plate (18) and No. two horizontal mounting plates (19)
No. three vertical rotating bars (21) that rolling bearing (20) mutually overlaps, described No. three vertical rotating bar (21) side surface lower ends are equipped with four
Number drive (22), is driven between No. three drives (16) and No. four drives (22) by No. two conveyer belts (23)
Connection, No. two conveyer belts (23) from horizontal strip gab (17) stretch out, described No. three vertical rotating bar (21) side surfaces and
Replaceable rotating brush (24), the replaceable rotating brush (24) and Air Filter are set with above No. four drives (22)
(10) side surface mutually overlaps.
2. the dust-proof guardrail of a kind of construction with self-cleaning function according to claim 1, which is characterized in that described
The vertical rotating bar of No.1 (6) upper end and fold-type shake handle (25) is equipped with above the No.1 circular open (3).
3. the dust-proof guardrail of a kind of construction with self-cleaning function according to claim 1, which is characterized in that described
Vertical limiting plate (11) side surface is equipped with a pair of of hook (26).
4. a kind of dust-proof guardrail of construction with self-cleaning function according to claim 1 and 3, which is characterized in that
Vertical column (2) left-hand face is equipped with a pair of of the hanging ring (27) to match with a pair of of hook (26).
5. the dust-proof guardrail of a kind of construction with self-cleaning function according to claim 1, which is characterized in that described
Rectangular base (1) lower surface is equipped with non-slip mat (28).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810071220.1A CN108266046B (en) | 2018-01-25 | 2018-01-25 | Construction guardrail that prevents dust with self-cleaning function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810071220.1A CN108266046B (en) | 2018-01-25 | 2018-01-25 | Construction guardrail that prevents dust with self-cleaning function |
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Publication Number | Publication Date |
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CN108266046A true CN108266046A (en) | 2018-07-10 |
CN108266046B CN108266046B (en) | 2020-09-08 |
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CN201810071220.1A Active CN108266046B (en) | 2018-01-25 | 2018-01-25 | Construction guardrail that prevents dust with self-cleaning function |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111359338A (en) * | 2020-02-12 | 2020-07-03 | 葛飞月 | Dust collection mulching film for construction site |
CN111927201A (en) * | 2020-08-25 | 2020-11-13 | 国网四川省电力公司南充供电公司 | Portable fence |
CN113833354A (en) * | 2021-10-28 | 2021-12-24 | 徐州大成环境科技有限公司 | Make things convenient for dustproof isolating device for construction of dismouting |
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CN111927201A (en) * | 2020-08-25 | 2020-11-13 | 国网四川省电力公司南充供电公司 | Portable fence |
CN113833354A (en) * | 2021-10-28 | 2021-12-24 | 徐州大成环境科技有限公司 | Make things convenient for dustproof isolating device for construction of dismouting |
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