CN107269112B - A kind of construction enclosure wall for detecting and purifying for dust - Google Patents
A kind of construction enclosure wall for detecting and purifying for dust Download PDFInfo
- Publication number
- CN107269112B CN107269112B CN201710514367.9A CN201710514367A CN107269112B CN 107269112 B CN107269112 B CN 107269112B CN 201710514367 A CN201710514367 A CN 201710514367A CN 107269112 B CN107269112 B CN 107269112B
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- prefabricated fence
- arc end
- dust
- fence unit
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000000428 dust Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000003595 mist Substances 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000746 purification 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
- E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/04—Fixed devices, e.g. permanently- installed flushing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fencing (AREA)
Abstract
The construction enclosure wall that the invention discloses a kind of to detect and purify for dust, including multiple prefabricated fence units, multiple prefabricated fence units are coupled are fixed into bulk enclosure wall between any two；The both sides side wall of each prefabricated fence unit is equipped with retaining ring, and pitching pile is fixed after passing through the retaining ring with ground；The inside of each prefabricated fence unit is equipped with the device that can generate water curtain or/and water mist, air openings on the prefabricated fence unit on side inner wall in construction site, the rear end of the air openings is connect by air pipeline with a negative pressure device, and dust detection components are equipped in air pipeline.The present invention for dust detect and purify construction enclosure wall can on building site noise pollution and dust pollution play the role of intelligent monitoring and reduction, and convenient disassembly, be suitble to storage and transport.
Description
Technical field
The construction enclosure wall that the invention discloses a kind of to detect and purify for dust, belongs to the realm of building construction.
Background technology
At present the building height of common construction enclosure wall can only simply by construction site be environmentally isolated out outside the venue, but to week
Dust pollution in the noise pollution enclosed and construction site does not have good barriering effect, especially close on residential building,
Generated noise, airborne dust also will produce serious influence to the life of resident and surrounding enviroment when public place construction.Also,
Common construction enclosure wall is typically all to be formed using concrete block masonry, and after the completion of construction, repeatable utilization rate is low, is also easy to produce building rubbish
The problem of environmental pollutions such as rubbish, airborne dust.
Therefore there is an urgent need for a kind of construction enclosure walls that can preferably solve the above problems at present.
Invention content
In view of the above technical problems, the present invention proposes a kind of construction enclosure wall for detecting and purifying for dust, can be to work
Good iris action, and convenient disassembly are played in the noise pollution and dust pollution of ground, are suitble to storage and transport.
In order to achieve the above technical purposes, the present invention adopts the following technical scheme that：
A kind of construction enclosure wall for detecting and purifying for dust, including multiple prefabricated fence units are multiple described prefabricated to enclose
Wall unit is coupled is fixed into bulk enclosure wall between any two；The both sides side wall of each prefabricated fence unit is equipped with retaining ring, and pitching pile is worn
It is fixed with ground after crossing the retaining ring；
The inside of each prefabricated fence unit is equipped with the device that can generate water curtain or/and water mist, including water tank, water
Pipe, water pump and fountain head, the bottom in the prefabricated fence unit are equipped with water tank, and the water pump is arranged in water tank, described
The opening tilted upward is equipped on prefabricated fence unit close to the top sidewall of construction site side, opening is equipped with nozzle outwardly
Fountain head, the water outlet of water pump is connect by water pipe with fountain head；
Air openings are equipped with close to construction site side side wall, on the prefabricated fence unit after the air openings
End is connect by air pipeline with a negative pressure device, and dust detection components are equipped in air pipeline；
The prefabricated fence unit is internally provided with control circuit, sensor, water level limits device, phonetic alarm；
The outer wall of the prefabricated fence unit be equipped with solar panel, the solar panel by power cord with
Accumulator connects；
The accumulator, water pump, negative pressure device, dust detection components, sensor, water level limits device and audio alert
Device is connect with control circuit respectively；
The outer wall of the prefabricated fence unit is equipped with the water filling port being connected with water tank.
Multiple prefabricated fence units are connected with pulling eye by drag hook be combined into bulk enclosure wall between any two；It is each prefabricated to enclose
Wall unit all has a concave arc end and convex arc end, and the concave arc end is mutually agreed with convex arc end, and the concave arc end is equipped with pulling eye,
The convex arc end is equipped with the drag hook for connecting the pulling eye.
Be located at water tank upper in the prefabricated fence unit and be equipped with a cavity, be provided in the cavity accumulator and
Control circuit, the wall of the prefabricated fence unit is interior to have conduit of sunkening cord, and conducting wire, the storage are placed in the conduit of sunkening cord
Battery and control circuit are connected by the conducting wire with the water pump and sensor being arranged in water tank, and the sensor includes setting
Human body proximity sensor and temperature sensor on prefabricated fence unit outer wall.
The water level limits device is made of three electrodes, is a public electrode, a low water level electrode and one respectively
A high water level electrode；Public electrode is arranged in the bottom of the water tank, low water level electrode and high water level electrode along tank inner wall height
Degree direction is sequentially arranged from the bottom up, and height where the high water level electrode will be less than the height of the water filling port.
There is puigging in the materials for wall of each prefabricated fence unit.
The filter circuit that control circuit is formed through ceramic disc capacitor and zener diode is connected with water pump, ceramic disc capacitor and voltage stabilizing
It after diode group is parallel with one another, then is connected in parallel between two input electrodes of water pump, zener diode group includes being serially connected
Two zener diodes, the cathode of two zener diodes is connected.
Further include a Corner Link, for one will to be connected between two prefabricated fence units in an angle of 90 degrees arrangement
It rises, is set on the Corner Link there are one concave arc end and convex arc end, the concave arc end and the convex arc end of prefabricated fence unit connect
It connects, the convex arc end is connect with the concave arc end of prefabricated fence unit.
Each prefabricated fence unit all has a concave arc end and convex arc end, and the concave arc end is mutually agreed with convex arc end, institute
It states concave arc end and is equipped with electromagnetism suction piece, the convex arc end is equipped with the sheet metal for connecting the electromagnetism suction piece, multiple prefabricated
Fence unit is combined into bulk enclosure wall by electromagnetic force between any two.
Advantageous effect：
The first, a kind of construction enclosure wall for detecting and purifying for dust of the present invention, by multiple prefabricated fence units group two-by-two
It closes, it can be with strong applicability according to the length and height for needing arbitrary increase enclosure wall；
The second, a kind of construction enclosure wall for detecting and purifying for dust of the present invention, not only has the institute of common construction enclosure wall
It is functional, while there is dust-absorbing function, the airborne dust in building site can be taken away in time, prevent dust from construction sites to the greatest extent everywhere
The advantageous effect flown upward.
Description of the drawings
Fig. 1 is the structural schematic diagram of the multiple prefabricated fence unit combinations of the present invention；
Fig. 2 is the internal structure schematic diagram of the prefabricated fence unit of the present invention；
Fig. 3 is the prefabricated fence unit lateral connection schematic diagram of each two of the present invention；
Fig. 4 is the structural schematic diagram of the multiple prefabricated fence unit combinations of the present invention；
Fig. 5 is the circuit connection diagram of filter circuit and control circuit；
Wherein, 1 is prefabricated fence unit；2 be retaining ring；3 be pitching pile；4 be water tank；5 be water pump；6 be water pipe；7 be water spray
Head；8 be air openings；9 be negative pressure device；10 be solar energy electroplax；11 circuits in order to control；12 be accumulator；13 be water filling port；
16 be public electrode；17 be low water level electrode；18 be high water level electrode；19 be human body proximity sensor；20 be Corner Link.
Specific implementation mode
With reference to the accompanying drawings of the specification and specific embodiment is to a kind of construction for detecting and purifying for dust of the invention
The technical solution of enclosure wall is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of construction enclosure wall for detecting and purifying for dust, including multiple prefabricated fence units, it is multiple
The prefabricated fence unit is coupled is fixed into bulk enclosure wall between any two；The both sides side wall of each prefabricated fence unit is equipped with
Retaining ring, pitching pile are fixed after passing through the retaining ring with ground；
The inside of each prefabricated fence unit is equipped with the device that can generate water curtain or/and water mist, including water tank, water
Pipe, water pump and fountain head, the bottom in the prefabricated fence unit are equipped with water tank, and the water pump is arranged in water tank, described
The opening tilted upward is equipped on prefabricated fence unit close to the top sidewall of construction site side, opening is equipped with nozzle outwardly
Fountain head, the water outlet of water pump is connect by water pipe with fountain head；
Air openings are equipped with close to construction site side side wall, on the prefabricated fence unit after the air openings
End is connect by air pipeline with a negative pressure device, and dust detection components are equipped in air pipeline；
The prefabricated fence unit is internally provided with control circuit, sensor, water level limits device, phonetic alarm；
The outer wall of the prefabricated fence unit is equipped with solar panel；
The water pump, negative pressure device, dust detection components, sensor, water level limits device and phonetic alarm difference
It is connect with control circuit；
The outer wall of the prefabricated fence unit is equipped with the water filling port being connected with water tank.
It is multiple as a kind of the further preferred of construction enclosure wall technical solution for detecting and purifying for dust of the present invention
Prefabricated fence unit is connected with pulling eye by drag hook be combined into bulk enclosure wall between any two；Each prefabricated fence unit all has
One concave arc end and convex arc end, the concave arc end are mutually agreed with convex arc end, and the concave arc end is equipped with pulling eye, on the convex arc end
Equipped with the drag hook for connecting the pulling eye.
It is described as a kind of the further preferred of construction enclosure wall technical solution for detecting and purifying for dust of the present invention
It is located at water tank upper in prefabricated fence unit and is equipped with a cavity, the accumulator and control circuit, institute is provided in the cavity
Stating has conduit of sunkening cord in the wall of prefabricated fence unit, conducting wire, the accumulator and control are placed in the conduit of sunkening cord
Circuit is connected by the conducting wire with the water pump and sensor being arranged in water tank, and the sensor includes being arranged in prefabricated enclosure wall
Human body proximity sensor on unit outer wall and temperature sensor.
It is described as a kind of the further preferred of construction enclosure wall technical solution for detecting and purifying for dust of the present invention
Water level limits device is made of three electrodes, is a public electrode, a low water level electrode and a high water level electrode respectively；
Public electrode is arranged in the bottom of the water tank, low water level electrode and high water level electrode along tank inner wall short transverse from the bottom up
It is sequentially arranged, height where the high water level electrode will be less than the height of the water filling port.
As a kind of the further preferred of construction enclosure wall technical solution for detecting and purifying for dust of the present invention, each
There is puigging in the materials for wall of prefabricated fence unit.
As a kind of further preferred, control for the construction enclosure wall technical solution for detecting and purifying for dust of the present invention
The filter circuit that circuit is formed through ceramic disc capacitor and zener diode is connected with water pump, and ceramic disc capacitor and zener diode group are mutual
It after parallel connection, then is connected in parallel between two input electrodes of water pump, zener diode group includes two voltage stabilizings two being serially connected
The cathode of pole pipe, two zener diodes is connected.
Further include a Corner Link, for one will to be connected between two prefabricated fence units in an angle of 90 degrees arrangement
It rises, is set on the Corner Link there are one concave arc end and convex arc end, the concave arc end and the convex arc end of prefabricated fence unit connect
It connects, the convex arc end is connect with the concave arc end of prefabricated fence unit.
The embodiment of the present invention 1 is detected for dust and the operation principle of the construction enclosure wall of purification is：
Suitable place is selected, according to enclosure wall height and the suitable prefabricated fence unit quantity of length requirement selection and pitching pile
Pitching pile is passed through retaining ring hole, squeezes into pitching pile in suitable position, prefabricated fence unit is made to be fixed on ground by quantity.
Prefabricated fence unit is measured in real time the air in building site by negative pressure device, and data detection signal is sent out
Control circuit is given, the data-signal detected is compared by control circuit with pre-set threshold value, if being less than threshold value,
Control circuit does not send instruction；
If being more than threshold value, control circuit sends instructions to water pump, and pump working is absorbed the water in water tank by pipeline
To fountain head, fountain head carries out water spray dust to air；
The outer wall of prefabricated fence unit is equipped with human body proximity sensor, and the human body proximity sensor is for detecting people
Body, when water level needs alarm less than lower limit in water tank, human body proximity sensor detect in a certain range whether someone, if there is
People then starts phonetic alarm alarm；If detecting surrounding nobody, phonetic alarm is not alarmed.
Embodiment 2
Difference between embodiment 2 and embodiment 1 is only the connection structure between prefabricated fence unit in the horizontal
It is changed into pulling eye by original drag hook and is connected by calutron magnetic, compared to the composite construction for connecting of embodiment 1, implemented
The connection speed of example 2 is very fast, construction efficiency higher.
Embodiment 3
Difference lies in be equipped with temperature on the outer wall of prefabricated fence unit to pass between embodiment 3 and above-mentioned two embodiment
Sensor, and by the temperature data real-time Transmission of detection to control circuit, be preset with temperature threshold in control circuit, work as temperature sensing
When device detects that ambient temperature is more than temperature threshold, then control circuit sends instructions to water pump, pump working, to reach automatic spray
The purpose of water cooling.
Claims (7)
1. a kind of construction enclosure wall for detecting and purifying for dust, which is characterized in that including multiple prefabricated fence units, Duo Gesuo
Prefabricated fence unit is stated, is coupled is fixed into bulk enclosure wall between any two；The both sides side wall of each prefabricated fence unit is equipped with button
Ring, pitching pile are fixed after passing through the retaining ring with ground；
The inside of each prefabricated fence unit is equipped with the device that can generate water curtain or/and water mist, including water tank, water pipe, water
Pump and fountain head, the bottom in the prefabricated fence unit are equipped with water tank, and the water pump is arranged in water tank, described prefabricated to enclose
It is equipped with the opening tilted upward close to the top inner wall of side in construction site on wall unit, opening is equipped with the spray of nozzle outwardly
The water outlet of head, water pump is connect by water pipe with fountain head；
On the prefabricated fence unit air openings, the rear end of the air openings are equipped with close to side inner wall in construction site
It is connect with a negative pressure device by air pipeline, dust detection components is equipped in air pipeline；
The prefabricated fence unit is internally provided with control circuit, sensor, water level limits device, phonetic alarm；
The outer wall of the prefabricated fence unit is equipped with solar panel, and the solar panel passes through power cord and electric power storage
Pond connects；
The accumulator, water pump, negative pressure device, dust detection components, sensor, water level limits device and phonetic alarm point
It is not connect with control circuit；
The outer wall of the prefabricated fence unit is equipped with the water filling port being connected with water tank；
It is located at water tank upper in the prefabricated fence unit and is equipped with a cavity, the accumulator and control is provided in the cavity
Circuit, the wall of the prefabricated fence unit is interior to have conduit of sunkening cord, and conducting wire, the accumulator are placed in the conduit of sunkening cord
And control circuit is connected by the conducting wire with the water pump and sensor being arranged in water tank, the sensor includes being arranged pre-
Human body proximity sensor and temperature sensor on fence unit outer wall processed；
Suitable place is selected, according to enclosure wall height and the suitable prefabricated fence unit quantity of length requirement selection and pitching pile number
Pitching pile is passed through retaining ring hole, squeezes into pitching pile in suitable position, prefabricated fence unit is made to be fixed on ground by amount；
Prefabricated fence unit is measured in real time the air in building site by negative pressure device, and data detection signal is sent to
The data-signal detected is compared by control circuit, control circuit with pre-set threshold value, if being less than threshold value, is controlled
Circuit does not send instruction；
If being more than threshold value, control circuit sends instructions to water pump, and the water in water tank is absorbed into spray by pump working by pipeline
Head, fountain head carry out water spray dust to air；
The human body proximity sensor is for detecting human body, and when water level needs alarm less than lower limit in water tank, human body is close to be passed
Sensor detect in a certain range whether someone, start phonetic alarm alarm if someone；If detecting surrounding nobody, language
Sound alarm is not alarmed；
The temperature data real-time Transmission of detection to control circuit is preset with temperature threshold by the temperature sensor in control circuit
Value, when temperature sensor detects that ambient temperature is more than temperature threshold, then control circuit sends instructions to water pump, plugman
Make, to achieve the purpose that automatic water jetting cools down.
2. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that multiple prefabricated enclosure walls
Unit is connected with pulling eye by drag hook be combined into bulk enclosure wall between any two；Each prefabricated fence unit all has a concave arc
End and convex arc end, the concave arc end are mutually agreed with convex arc end, and the concave arc end is equipped with pulling eye, and the convex arc end is equipped with and is used for
Connect the drag hook of the pulling eye.
3. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that the water level limitation
Device is made of three electrodes, is a public electrode, a low water level electrode and a high water level electrode respectively；Public electrode
It is arranged in the bottom of the water tank, low water level electrode and high water level electrode along tank inner wall short transverse cloth successively from the bottom up
It sets, height where the high water level electrode will be less than the height of the water filling port.
4. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that each prefabricated enclosure wall
There is puigging in the materials for wall of unit.
5. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that control circuit is through porcelain
Chip capacitor and zener diode composition filter circuit be connected with water pump, ceramic disc capacitor and zener diode group it is parallel with one another after,
It being connected in parallel again between two input electrodes of water pump, zener diode group includes two zener diodes being serially connected, and two
The cathode of a zener diode is connected.
6. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that further include a corner
Connector is set for will link together between two prefabricated fence units in an angle of 90 degrees arrangement on the Corner Link
There are one concave arc end and convex arc end, the concave arc end is connect with the convex arc end of prefabricated fence unit, and the convex arc end is enclosed with prefabricated
The concave arc end of wall unit connects.
7. the construction enclosure wall according to claim 1 for detecting and purifying for dust, which is characterized in that each prefabricated enclosure wall
Unit all has a concave arc end and convex arc end, and the concave arc end is mutually agreed with convex arc end, and the concave arc end is inhaled equipped with electromagnetism
Piece, the convex arc end are equipped with the sheet metal for connecting the electromagnetism suction piece, and multiple prefabricated fence units pass through between any two
Electromagnetic force is combined into bulk enclosure wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514367.9A CN107269112B (en) | 2017-06-29 | 2017-06-29 | A kind of construction enclosure wall for detecting and purifying for dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514367.9A CN107269112B (en) | 2017-06-29 | 2017-06-29 | A kind of construction enclosure wall for detecting and purifying for dust |
Publications (2)
| Publication Number | Publication Date |
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| CN107269112A CN107269112A (en) | 2017-10-20 |
| CN107269112B true CN107269112B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710514367.9A Active CN107269112B (en) | 2017-06-29 | 2017-06-29 | A kind of construction enclosure wall for detecting and purifying for dust |
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| CN (1) | CN107269112B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577812A (en) * | 2018-12-14 | 2019-04-05 | 广西祖昌门业有限公司 | Reduce the kitchen door special of noise jamming |
| CN110725613A (en) * | 2019-10-28 | 2020-01-24 | 泸州市丹山建材科技有限公司 | Building engineering enclosure |
| CN111706159A (en) * | 2020-06-15 | 2020-09-25 | 无锡市政设计研究院有限公司 | Urban road reconnaissance encloses fender based on thing networking |
| CN112696784A (en) * | 2020-12-29 | 2021-04-23 | 南京国豪装饰安装工程股份有限公司 | Dustproof greening curtain wall system for construction site |
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| DE3602787A1 (en) * | 1986-01-30 | 1987-08-06 | Guenter Drueck | Securing means for small-game fences on vineyards |
| CN200999332Y (en) * | 2007-01-31 | 2008-01-02 | 刘亚军 | City road purifying spraying protective fence |
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| CN204001978U (en) * | 2014-06-16 | 2014-12-10 | 深圳市华鲁工程有限公司 | A kind of can dust suction Urban Building Construction partition wall |
| CN205370115U (en) * | 2016-02-26 | 2016-07-06 | 杜好伟 | But city construction dust absorption divider wall |
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|---|---|---|---|---|
| DE3602787A1 (en) * | 1986-01-30 | 1987-08-06 | Guenter Drueck | Securing means for small-game fences on vineyards |
| CN200999332Y (en) * | 2007-01-31 | 2008-01-02 | 刘亚军 | City road purifying spraying protective fence |
| CN202055618U (en) * | 2011-04-22 | 2011-11-30 | 有利华建筑预制件有限公司 | Noise-reduction dust-reduction separating wall system for construction site |
| CN204826875U (en) * | 2015-07-24 | 2015-12-02 | 西丙辰 | Fender is enclosed in road construction construction |
| CN205012254U (en) * | 2015-10-12 | 2016-02-03 | 胡昌义 | Way guardrail is assisted in city |
| CN106836961A (en) * | 2017-02-21 | 2017-06-13 | 青岛智享专利技术开发有限公司 | A kind of environmental treatment electric power generating plants coal dust automatic absorbing protecting wall manages protecting wall |
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| Publication number | Publication date |
|---|---|
| CN107269112A (en) | 2017-10-20 |
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