CN110102126A - A kind of energy-saving fog gun machine in construction site - Google Patents
A kind of energy-saving fog gun machine in construction site Download PDFInfo
- Publication number
- CN110102126A CN110102126A CN201910332831.1A CN201910332831A CN110102126A CN 110102126 A CN110102126 A CN 110102126A CN 201910332831 A CN201910332831 A CN 201910332831A CN 110102126 A CN110102126 A CN 110102126A
- Authority
- CN
- China
- Prior art keywords
- rack
- gun
- water
- gun barrel
- reclaiming cover
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/066—Spray cleaning with nozzles using mechanical vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid
Abstract
The invention discloses a kind of energy-saving fog gun machines in construction site, reclaiming cover is fixedly installed with by fastening bolt in the front side lower end of gun barrel, the arc-shaped slot setting of reclaiming cover, the mist state clean water that gun barrel sprays is contacted with the dust in air, so that dust and mist state aqueous fusion are closed, mist state water with dust is fallen under gravity into reclaiming cover, and it is drained into recovery pond by apopore inside reclaiming cover and recovery tube, it can be realized the recycling of clean water, water in recovery pond is by staticly settling and can utilize again, neither influence the removing of dust in building construction process, water resource can be saved again, and reclaiming cover and gun barrel are fixed by fastening bolt, it is easy for installation and removal, it is convenient for people to use.
Description
Technical field
The present invention relates to building dedusting production equipment technology, the energy-saving fog gun machines in specially a kind of construction site.
Background technique
Architectural engineering, refer to by construction to all kinds of building constructions and its affiliated facility and route matched with its, pipeline,
The installation activity of equipment is formed by engineering entity.Wherein " building construction ", which refers to, top cover, beam column, wall, basis and can
Inner space is formed, meets people's production, lives, learns, the engineering that public activity needs.With the development of economy, urbanization
Step is accelerated, and then has driven building trade rapid development, and thus the various environmental problems of bring are also more and more prominent, especially
All kinds of construction sites and reconstruction of the old city town construction site are increased.Construction site is difficult to avoid that the generation of dust, a large amount of powder when constructing
The generation of dirt has a huge impact the body of worker, since dust is small in size, light weight, it is easy to and large area raises, and one
Denier in construction worker's suction body, can be caused worker's throat, lung uncomfortable by mouth, nose.It is difficult to be discharged after dust sucking, accumulate
It is easy to cause pulmonary disease in lung, it is very big to the health harm of worker.Construction worker is in construction site construction for a long time
In the environment of, eyes directly contact a large amount of dust, cause ophthalmic uncomfortable, and raising due to dust, construction site low visibility,
The difficulty for increasing worker's construction, reduces construction quality.So the watering dust collecting device on construction building site is indispensable
Few.
Fog gun machine is a kind of running at high speed so that water is sprayed in the form of mist state, and then is enabled to blower
Dust in air is in contact with water mist, so that dust is effectively handled.And existing fog gun machine water resource
Waste is serious, cannot accomplish the recycling and reusing of water resource, not be able to satisfy the requirement of people.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of construction site energy-saving fog gun
Machine, it is serious effectively to solve existing fog gun machine water resource waste, cannot accomplish the recycling and reusing of water resource, not be able to satisfy
The problem of people's requirement.
To achieve the above object, the invention provides the following technical scheme: a kind of energy-saving fog gun machine in construction site, including
Rack, gun carriage and gun barrel, the gun carriage are fixedly installed on the upper end of rack, and gun barrel is equipped on the gun carriage, the gun carriage
Bottom end is fixedly installed shaft, and one end of the shaft passes through the top of rack, and is set to the inside of rack, and the shaft
The upper output shaft positioned at one end of machine frame inside connection rotating electric machine, the rotating electric machine are fixedly installed in the inside of rack, institute
The inside for stating rack is fixedly installed suction pump, and the input terminal of the suction pump connects external water source, the pumping by water-supply-pipe
The output end of water pump is connected to the inside of gun barrel by water-supply-pipe, and the interior forward end of the gun barrel is provided with water spray endless tube, the spray
Water ring pipe is provided with several high pressure nozzles close to the side that gun barrel exports is evenly spaced, the Internal back end installation of the gun barrel
There is blower, the front end two sides of the gun barrel are fixedly installed the first connector, pass through fastening bolt on first connector
It is fixedly connected with reclaiming cover, one end two sides of the reclaiming cover are provided with the second connector, and first connector and second
The threaded mounting hole to match with fastening bolt is provided on connector, the reclaiming cover is set to the lower end of gun barrel, and is in
The setting of arc groove shape, the reclaiming cover inside are fixedly installed with sealing partition, the bottom of the reclaiming cover close to the side of gun barrel
End is provided with apopore, and the side of the apopore is connected with recovery tube, and one end of the recovery tube is connected with recovery pond, described
Machine frame inside two sides are respectively and fixedly provided with fixing axle, and the fixed axis center is hollow structure, are rotatably connected to collection in the fixing axle
Through-hole is equipped in drum, the collection drum and fixing axle, the collection drum section is I-shaped, and the line concentration disc side connects
Be connected to handle, be wound with water-supply-pipe and cable on two collection drums respectively, described water-supply-pipe one end and suction pump into
Water end (W.E.) is fixedly connected, and the other end of the water-supply-pipe passes through the through-hole of fixing axle sum aggregate drum and winds several circles on drum in collecting
After be placed on collection drum, one end power inleting terminal of the cable is conductively connected, and the other end passes through fixing axle inner via hole and stretches
It is placed on collection drum out and after winding several circles on collection drum, the outer end side of the rack is provided with observation window and heat dissipation
Hole, the side in the rack close to observation window are provided with pushing hands, the upper surface insertion of the rack be equipped with multiple operations by
Button.
As a preferred technical solution of the present invention, the setting of the bottom end of the rack is there are four movable pulley, and four institutes
State four edges that rack is arranged in rectangle for movable pulley.
As a preferred technical solution of the present invention, the side of the rack is hinged with maintenance door, in the maintenance door
It is fixedly installed with handle.
As a preferred technical solution of the present invention, the radius of the radian of the reclaiming cover side is slightly larger than outside gun barrel front end
The radius of the radian of side.
As a preferred technical solution of the present invention, the side in the reclaiming cover far from gun barrel is provided with baffle, institute
The length for stating reclaiming cover is arranged according to the range of gun barrel.
As a preferred technical solution of the present invention, on the heat release hole on the apopore and rack of the reclaiming cover bottom end
It is provided with filter screen.
As a preferred technical solution of the present invention, the middle position of the gun barrel is set in anchor ear, and described armful
The both ends of hoop are rotatably dispose on gun carriage by shaft.
As a preferred technical solution of the present invention, the rack, gun carriage and gun barrel are all made of stainless steel alloy material
It is made, the water-supply-pipe and recovery tube are rubber hose.
Compared with prior art, the beneficial effects of the present invention are: the energy-saving fog gun machine in this kind of construction site, in gun barrel
Front side lower end is fixedly installed with reclaiming cover, the arc-shaped slot setting of reclaiming cover, the mist state clean water that gun barrel sprays by fastening bolt
It is contacted with the dust in air, so that dust and mist state aqueous fusion are closed, the mist state water with dust is fallen under gravity
Enter in reclaiming cover, and be drained into recovery pond by apopore inside reclaiming cover and recovery tube, can be realized returning for clean water
It receives, the water in recovery pond is by staticly settling and can utilize again, the removing of dust neither in influence building construction process, and energy
Water resource is enough saved, and reclaiming cover and gun barrel are fixed by fastening bolt, are easy for installation and removal, and making for people is facilitated
With.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the energy-saving fog gun machine in construction site of the present invention；
Fig. 2 is a kind of attachment structure schematic diagram of construction site energy-saving fog gun machine gun cylinder and reclaiming cover of the present invention；
Fig. 3 is a kind of side structure schematic view of construction site energy-saving fog gun machine gun cylinder and reclaiming cover of the present invention；
Fig. 4 is a kind of schematic diagram of internal structure of the energy-saving fog gun machine rack in construction site of the present invention；
Fig. 5 is a kind of mounting structure schematic diagram of the energy-saving fog gun machine collection drum in construction site of the present invention；
Fig. 6 is a kind of structural schematic diagram of the construction site of the present invention with energy-saving fog gun machine water spray endless tube and high pressure nozzle；
In figure: 1, rack；2, gun carriage；3, gun barrel；4, shaft；5, rotating electric machine；6, suction pump；7, water-supply-pipe；8, water spray endless tube；
9, high pressure nozzle；10, blower；11, the first connector；12, fastening bolt；13, reclaiming cover；14, the second connector；15, screw thread
Mounting hole；16, partition is sealed；17, apopore；18, recovery tube；19, fixing axle；20, collect drum；21, through-hole；22, handle；
23, anchor ear；24, observation window；25, heat release hole；26, pushing hands；27, operation button；28, movable pulley；29, maintenance door；30, baffle；
31, filter screen.
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.
Fig. 1-6 is please referred to, the present invention provides a kind of technical solution: a kind of construction site energy-saving fog gun machine, including machine
Frame 1, gun carriage 2 and gun barrel 3, the gun carriage 2 are fixedly installed on the upper end of rack 1, gun barrel 3, the big gun are equipped on the gun carriage 2
The bottom end of frame 2 is fixedly installed shaft 4, and one end of the shaft 4 passes through the top of rack 1, and is set to the inside of rack 1,
And it is located at the output shaft of one end connection rotating electric machine 5 inside rack 1 in the shaft 4, the rotating electric machine 5 is fixedly installed in
The inside of rack 1, the inside of the rack 1 are fixedly installed suction pump 6, and the input terminal of the suction pump 6 is connected by water-supply-pipe 7
External water source is connect, the output end of the suction pump 6 is connected to the inside of gun barrel 3, the interior forward end of the gun barrel 3 by water-supply-pipe 7
It is provided with water spray endless tube 8, the water spray endless tube 8 is provided with several high pressure sprays close to the side that gun barrel 3 exports is evenly spaced
Mouth 9, the Internal back end of the gun barrel 3 are equipped with blower 10, and the front end two sides of the gun barrel 3 are fixedly installed the first connector
11, reclaiming cover 13, one end two sides of the reclaiming cover 13 are fixedly connected with by fastening bolt 12 on first connector 11
It is provided with the second connector 14, and is provided with and 12 phase of fastening bolt on first connector 11 and the second connector 14
The threaded mounting hole 15 matched, the reclaiming cover 13 is set to the lower end of gun barrel 3, and arc-shaped groove shape is arranged, the reclaiming cover
13 inside are fixedly installed with sealing partition 16 close to the side of gun barrel 3, and the bottom end of the reclaiming cover 13 is provided with apopore 17, institute
The side for stating apopore 17 is connected with recovery tube 18, and one end of the recovery tube 18 is connected with recovery pond, 1 inside two of rack
Side is respectively and fixedly provided with fixing axle 19, and 19 center of fixing axle is hollow structure, is rotatably connected to collection drum in the fixing axle 19
20, it is equipped with through-hole 21 on the collection drum 20 and fixing axle 19,20 section of collection drum is I-shaped, and the collection drum
20 sides are connected with handle 22, are wound with water-supply-pipe 7 and cable, the water-supply-pipe 7 one respectively on two collection drums 20
End is fixedly connected with the water inlet end of suction pump 6, and the other end of the water-supply-pipe 7 passes through the through-hole 21 of 19 sum aggregate drum 20 of fixing axle
And be placed on collection drum 20 after winding several circles on collection drum 20, one end power inleting terminal conduction of the cable connects
It connecing, the other end passes through 19 inner via hole 21 of fixing axle and stretches out and be placed on collection drum 20 after winding several circles on collection drum 20,
The outer end side of the rack 1 is provided with observation window 24 and heat release hole 25, is arranged in the rack 1 close to the side of observation window 24
There is pushing hands 26, the upper surface insertion of the rack 1 is equipped with multiple operation buttons 27.
In the present embodiment, it is preferred that the setting of the bottom end of the rack 1 is there are four movable pulley 28, and four movable pulleys
28 four edges of rack 1 are arranged in rectangle.
In the present embodiment, it is preferred that the side of the rack 1 is hinged with maintenance door 29, fixed peace in the maintenance door 29
Equipped with handle.
In the present embodiment, it is preferred that the radius of the radian of 13 side of reclaiming cover is slightly larger than the radian of 3 front end outer side of gun barrel
Radius.
In the present embodiment, it is preferred that the side in the reclaiming cover 13 far from gun barrel 3 is provided with baffle 30, the recycling
The length of cover 13 is arranged according to the range of gun barrel 3.
In the present embodiment, it is preferred that be all provided on the heat release hole 25 on the apopore 17 and rack 1 of 13 bottom end of reclaiming cover
It is equipped with filter screen 31.
In the present embodiment, it is preferred that the middle position of the gun barrel 3 is set in anchor ear 23, and the two of the anchor ear 23
End is rotatably dispose on gun carriage 2 by shaft.
In the present embodiment, it is preferred that the rack 1, gun carriage 2 and gun barrel 3 are all made of stainless steel alloy material and are made,
The water-supply-pipe 7 and recovery tube 18 are rubber hose.
The working principle of the invention and process for using: the opening up of reclaiming cover 13 is stuck on the downside of the front end of gun barrel 3,
The first connector 11 on gun barrel 3 is fixedly connected with the second connector 14 in reclaiming cover 13 by fastening bolt 12, then
One end of water-supply-pipe 7 is connected into external water source, one end of recovery tube 18 connects recovery pond, starts fog gun by operation button 27
Machine, successively opens blower 10, rotating electric machine 5 and suction pump 6, suction pump 6 by water-supply-pipe 7 by the water in water source connector pump to
It sprays water in endless tube 8, is then sprayed using the high pressure nozzle 9 on water spray endless tube 8, make to pass through gun barrel by the air-flow that blower 10 is formed
The water column that 3 front end high nozzles 9 eject forms mist-like spouting under the influence of the airflow, makes in water fog particle and air
Dust granules are mutually adsorbed, are bonded, and aggregation increases and settles under the effect of gravity, thus achieve the purpose that depositing dust, under
The water droplet fallen is fallen in reclaiming cover 13, and reclaiming cover 13 is curved slot arrangement setting, and is respectively set at the both ends of reclaiming cover 13
Partition 16 and baffle 30 are sealed, so that water droplet is accumulated in reclaiming cover 13, and is flowed into recovery tube 18 by apopore 17, is passed through
Recovery tube 18 flows into recovery pond, and the water in recovery pond can be used continuously by staticly settling, and can save great lot of water resources,
In dust removal process, rotating electric machine 5 is able to drive gun carriage 2 and gun barrel 3 is rotated, make gun barrel 3 within the scope of certain angle into
The injection of row reciprocally swinging, this mode can expand the depositing dust range of gun barrel 3, and further increase the working efficiency of fog gun machine.
The energy-saving fog gun machine in this kind of construction site is fixedly installed with recycling by fastening bolt in the front side lower end of gun barrel
Cover, the arc-shaped slot setting of reclaiming cover, the mist state clean water that gun barrel sprays is contacted with the dust in air, so that dust and mist
State aqueous fusion is closed, and the mist state water with dust is fallen under gravity into reclaiming cover, and passes through the apopore inside reclaiming cover
It is drained into recovery pond with recovery tube, can be realized the recycling of clean water, the water in recovery pond can be again by staticly settling
It utilizes, the removing of dust neither in influence building construction process, and water resource can be saved, and reclaiming cover and gun barrel pass through tightly
Fixing bolt is fixed, and is easy for installation and removal, convenient for people to use.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of energy-saving fog gun machine in construction site, including rack (1), gun carriage (2) and gun barrel (3), the gun carriage (2) is fixed
It is set to the upper end of rack (1), gun barrel (3) are installed on the gun carriage (2), which is characterized in that the bottom end of the gun carriage (2) is solid
Surely it is provided with shaft (4), one end of the shaft (4) passes through the top of rack (1), and is set to the inside of rack (1), and institute
State the output shaft for being located at rack (1) internal one end connection rotating electric machine (5) on shaft (4), the fixed peace of the rotating electric machine (5)
The inside of inside loaded on rack (1), the rack (1) is fixedly installed suction pump (6), the input terminal of the suction pump (6)
External water source is connected by water-supply-pipe (7), the output end of the suction pump (6) passes through the interior of water-supply-pipe (7) connection gun barrel (3)
Portion, the interior forward end of the gun barrel (3) are provided with water spray endless tube (8), and spray water endless tube (8) are close to the one of gun barrel (3) outlet
Side is evenly spaced to be provided with several high pressure nozzles (9), and the Internal back end of the gun barrel (3) is equipped with blower (10), described
The front end two sides of gun barrel (3) are fixedly installed the first connector (11), pass through fastening bolt on first connector (11)
(12) it is fixedly connected with reclaiming cover (13), one end two sides of the reclaiming cover (13) are provided with the second connector (14), and described
The threaded mounting hole (15) to match with fastening bolt (12) is provided on first connector (11) and the second connector (14),
The reclaiming cover (13) is set to the lower end of gun barrel (3), and arc-shaped groove shape is arranged, and the reclaiming cover (13) is internal close to big gun
The side of cylinder (3) is fixedly installed with sealing partition (16), and the bottom end of the reclaiming cover (13) is provided with apopore (17), it is described go out
The side in water hole (17) is connected with recovery tube (18), and one end of the recovery tube (18) is connected with recovery pond, and the rack (1) is interior
Portion two sides are respectively and fixedly provided with fixing axle (19), and fixing axle (19) center is hollow structure, the company of rotation on the fixing axle (19)
It is connected to collection drum (20), is equipped with through-hole (21) on the collection drum (20) and fixing axle (19), collection drum (20) section
To be I-shaped, and collection drum (20) side is connected with handle (22), is wound with respectively on two collection drums (20) defeated
Water pipe (7) and cable, described water-supply-pipe (7) one end are fixedly connected with the water inlet end of suction pump (6), the water-supply-pipe (7)
The other end passes through the through-hole (21) of fixing axle (19) sum aggregate drum (20) and is placed in after winding several circles on collection drum (20)
Collect on drum (20), one end power inleting terminal of the cable is conductively connected, and the other end passes through fixing axle (19) inner via hole
(21) it stretches out and is placed on collection drum (20) after winding several circles on collection drum (20), the outer end side of the rack (1)
It is provided with observation window (24) and heat release hole (25), the side of close observation window (24) is provided with pushing hands (26) on the rack (1),
The upper surface insertion of the rack (1) is equipped with multiple operation buttons (27).
2. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the rack (1)
There are four movable pulley (28) for bottom end setting, and four edges in rack (1) are arranged in rectangle for four movable pulleys (28).
3. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the rack (1)
Side is hinged with maintenance door (29), is fixedly installed with handle on the maintenance door (29).
4. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the reclaiming cover (13)
The radius of the radian of side is slightly larger than the radius of the radian of gun barrel (3) front end outer side.
5. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the reclaiming cover (13)
The upper side far from gun barrel (3) is provided with baffle (30), and the length of the reclaiming cover (13) is arranged according to the range of gun barrel (3).
6. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the reclaiming cover (13)
Filter screen (31) are provided on heat release hole (25) on the apopore (17) and rack (1) of bottom end.
7. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the gun barrel (3)
Middle position is set in anchor ear (23), and the both ends of the anchor ear (23) are rotatably dispose on gun carriage (2) by shaft.
8. a kind of energy-saving fog gun machine in construction site according to claim 1, it is characterised in that: the rack (1), big gun
Frame (2) and gun barrel (3) are all made of stainless steel alloy material and are made, and the water-supply-pipe (7) and recovery tube (18) are rubber
Hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332831.1A CN110102126A (en) | 2019-04-24 | 2019-04-24 | A kind of energy-saving fog gun machine in construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332831.1A CN110102126A (en) | 2019-04-24 | 2019-04-24 | A kind of energy-saving fog gun machine in construction site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110102126A true CN110102126A (en) | 2019-08-09 |
Family
ID=67486513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910332831.1A Withdrawn CN110102126A (en) | 2019-04-24 | 2019-04-24 | A kind of energy-saving fog gun machine in construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110102126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370903A (en) * | 2020-10-20 | 2021-02-19 | 任达明 | Fog gun machine for construction site and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015136630A (en) * | 2014-01-20 | 2015-07-30 | アズビル株式会社 | Air purification device |
| CN104815496A (en) * | 2015-04-28 | 2015-08-05 | 浙江大学 | Device for treating atmospheric pollution ad haze in public open space |
| CN207126291U (en) * | 2017-07-06 | 2018-03-23 | 泉州鑫彩贸易有限公司 | A kind of fog gun machine |
| CN208073020U (en) * | 2018-04-17 | 2018-11-09 | 王宏伟 | A kind of construction work surface spray dust heat sink |
| CN208493645U (en) * | 2018-07-10 | 2019-02-15 | 任云峰 | Construction of the highway circulating water dust cleaning apparatus |
-
2019
- 2019-04-24 CN CN201910332831.1A patent/CN110102126A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015136630A (en) * | 2014-01-20 | 2015-07-30 | アズビル株式会社 | Air purification device |
| CN104815496A (en) * | 2015-04-28 | 2015-08-05 | 浙江大学 | Device for treating atmospheric pollution ad haze in public open space |
| CN207126291U (en) * | 2017-07-06 | 2018-03-23 | 泉州鑫彩贸易有限公司 | A kind of fog gun machine |
| CN208073020U (en) * | 2018-04-17 | 2018-11-09 | 王宏伟 | A kind of construction work surface spray dust heat sink |
| CN208493645U (en) * | 2018-07-10 | 2019-02-15 | 任云峰 | Construction of the highway circulating water dust cleaning apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370903A (en) * | 2020-10-20 | 2021-02-19 | 任达明 | Fog gun machine for construction site and use method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190809 |