CN112807910A - Automatic cleaning equipment for spraying, dust collecting and cleaning in construction site - Google Patents
Automatic cleaning equipment for spraying, dust collecting and cleaning in construction site Download PDFInfo
- Publication number
- CN112807910A CN112807910A CN202011559964.1A CN202011559964A CN112807910A CN 112807910 A CN112807910 A CN 112807910A CN 202011559964 A CN202011559964 A CN 202011559964A CN 112807910 A CN112807910 A CN 112807910A
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- China
- Prior art keywords
- fixedly connected
- shaft
- atomizing
- automatic cleaning
- cleaning equipment
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- 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
- B01D47/08—Spray cleaning with rotary nozzles
-
- 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
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention provides automatic cleaning equipment for spraying, dust collection and cleaning in a construction site, and relates to the technical field of dust removal equipment. This an automatic cleaning equipment for job site sprays, dust absorption and clearance, be provided with the atomizing big gun including the bottom plate top, the atomizing big gun bottom is provided with runner assembly, atomizing big gun bottom one end is provided with the adjustment subassembly, runner assembly includes base, stand and connecting axle, both sides all are provided with the backup pad around the atomizing big gun, the backup pad is close to atomizing big gun one side fixedly connected with round bar. This an automatic cleaning equipment for job site sprays, dust absorption and clearance can adjust spray angle automatically at the in-process that the atomizing big gun blowout water smoke removed dust through this structure to can cover bigger dust removal scope, can show and improve dust collection efficiency, can clear up it through the brush, thereby keep the cleanness on ground, consequently, clear up effectually in the actual operation process.
Description
Technical Field
The invention relates to the technical field of dust removal equipment, in particular to automatic cleaning equipment for spraying, dust collection and cleaning in a construction site.
Background
Civil engineering is a general term for scientific technology for building various land engineering facilities. It refers to both the materials, equipment used and the technical activities carried out such as surveying, designing, construction, maintenance, repair, etc., as well as the objects of engineering construction. I.e. various engineering facilities such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage and protection projects, which are built on or under the ground, on land and directly or indirectly serve human life, production, military affairs and scientific research. Civil engineering refers to engineering entities which are used for carrying out various technical works such as investigation, planning, design, construction, installation and maintenance and the like on buildings, structures, related supporting facilities and the like of various new-built, reconstructed or expanded projects except house buildings, and the like, and the engineering entities which are completed by the technical works, the technical works comprise a large amount of dust in the civil construction process, the dust needs to be treated every day, otherwise, the construction of field constructors is influenced, and the construction progress is slowed down.
But traditional equipment for removing dust is general all integrative fixed, is not convenient for adjust, and the dust collecting equipment of taking angle of regulation on the current market, the function is comparatively single, can not handle to some mixtures that form subaerial water droplet and dust to lead to the clearance effect not good, the practicality is relatively poor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides automatic cleaning equipment for spraying, dust collection and cleaning in a construction site, and aims to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an automatic cleaning device for spraying, dust collection and cleaning in a construction site comprises a bottom plate, wherein an atomization gun is arranged at the top of the bottom plate, a rotating assembly is arranged at the bottom end of the atomization gun, and an adjusting assembly is arranged at one end of the bottom of the atomization gun;
the rotary assembly comprises a base, a stand column and a connecting shaft, wherein supporting plates are arranged on the front side and the rear side of the atomizing gun, a round rod is fixedly connected to one side, close to the atomizing gun, of the supporting plate, the round rod is rotatably connected with the atomizing gun through a bearing, the base is fixedly connected to the bottom of the supporting plate, the connecting shaft is fixedly connected to the bottom of the base, and the connecting shaft is arranged at the top end of the stand column and is rotatably connected with the stand column;
the adjustment subassembly includes connecting rod, branch, motor, transmission shaft, cross axle, vertical axis and pivot, transmission shaft and motor output end fixed connection, atomizing big gun bottom one end fixedly connected with lug, the connecting rod top is articulated with the lug, motor one end fixedly connected with toothed disc is kept away from to the transmission shaft, branch fixed connection is close to connecting rod one side in the toothed disc, branch runs through the connecting rod and rotates with the connecting rod to be connected, the cross axle sets up in toothed disc front side, cross axle outside fixedly connected with and toothed disc engaged with straight-teeth gear, the vertical axis sets up and keeps away from motor one end in the cross axle bottom, the pivot sets up in vertical axis bottom, the cross axle outside is provided with the brush, the bottom plate bottom is provided with the box body, the box body is close to brush one side.
Preferably, a first bevel gear is fixedly connected to one end, close to the vertical shaft, of the outer side of the transverse shaft, a second bevel gear meshed with the first bevel gear is arranged at the top end of the vertical shaft, a third bevel gear is fixedly connected to the bottom end of the vertical shaft, and a fourth bevel gear meshed with the third bevel gear is fixedly connected to the outer side of the rotating shaft.
Preferably, first risers are arranged at two ends of the rotating shaft, the first risers are fixedly connected to the bottom of the bottom plate, and two ends of the rotating shaft are rotatably connected with the first risers through bearings.
Preferably, one side of the box body is hinged with a door plate, and the outer side of the door plate is fixedly connected with a handle.
Preferably, the two ends of the cross shaft are both provided with second vertical plates, the second vertical plates are fixedly connected to the top of the bottom plate, and the cross shaft is rotatably connected with the second vertical plates through bearings.
Preferably, stand bottom fixedly connected with mounting panel, the mounting panel passes through bolt and bottom plate fixed connection, stand one side is provided with the water tank, the water tank front side is provided with the water pump, the water pump input is provided with the inlet tube, the water pump is linked together through inlet tube and water tank, the water pump output is provided with the outlet pipe, the outlet pipe is kept away from water pump one end and is linked together with the atomizing big gun.
Preferably, the bottom plate bottom is provided with the gyro wheel, bottom plate top one side fixedly connected with pushes away the handle, the equal fixedly connected with riser in both sides around the box body, riser top and bottom plate fixed connection.
Preferably, the bottom of the motor is fixedly connected with a base, and the base is fixedly connected to the top of the bottom plate.
The invention provides automatic cleaning equipment for spraying, dust collection and cleaning in a construction site, which has the following beneficial effects:
1. this an automatic cleaning equipment for job site sprays, dust absorption and clearance comes the adjustment phase spray regime through the swing of atomizing big gun, rotate through driving the brush and clean the mixture that subaerial dust and drop of water formed, therefore, utilize this structure can adjust spray angle at the in-process of atomizing big gun blowout water smoke dust removal automatically, thereby can cover bigger dust removal scope, can show and improve dust collection efficiency, and can form the mixture similar to mud form with the dust when the water droplet falls to subaerial, can clear up it through the brush, thereby keep the cleanness on ground, consequently, cooperation through atomizing big gun and brush can carry out thorough cleaing away to the dust of job site etc., clear up effectually in the actual operation process, the cleaning efficiency is high.
2. This an automatic cleaning equipment for job site sprays, dust absorption and clearance is favorable to promoting whole device through at bottom plate top one side fixedly connected with push rod, and the gyro wheel of bottom plate bottom is favorable to removing the device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of a brush structure according to the present invention;
fig. 4 is a top view of the present invention.
Fig. 5 is a front view of the present invention.
FIG. 6 is an enlarged view of the portion A of FIG. 2 according to the present invention.
In the figure: 1. a base plate; 2. atomizing cannons; 3. a base; 4. a column; 5. a connecting shaft; 6. a support plate; 7. a round bar; 8. a connecting rod; 9. a strut; 10. a motor; 11. a drive shaft; 12. a horizontal axis; 13. a vertical axis; 14. a rotating shaft; 15. a bump; 16. a gear plate; 17. a brush; 18. a box body; 19. a first vertical plate; 20. a door panel; 21. a second vertical plate; 22. a water tank; 23. a water pump; 24. a water outlet pipe; 25. a pushing handle.
Detailed Description
The embodiment of the invention provides automatic cleaning equipment for spraying, dust collection and cleaning in a construction site, which comprises a bottom plate 1, wherein rollers are arranged at the bottom of the bottom plate 1, a push handle 25 is fixedly connected to one side of the top of the bottom plate 1, vertical plates are fixedly connected to the front side and the rear side of a box body 18, the top ends of the vertical plates are fixedly connected with the bottom plate 1, an atomizing gun 2 is arranged at the top of the bottom plate 1, a rotating assembly is arranged at the bottom end of the atomizing gun 2, and an adjusting assembly is arranged at one end of the bottom of the atomizing gun 2;
the rotating assembly comprises a base 3, a stand column 4 and a connecting shaft 5, supporting plates 6 are arranged on the front side and the rear side of an atomizing gun 2, a round rod 7 is fixedly connected to one side, close to the atomizing gun 2, of each supporting plate 6, the round rod 7 is rotatably connected with the atomizing gun 2 through a bearing, the base 3 is fixedly connected to the bottom of each supporting plate 6, the connecting shaft 5 is fixedly connected to the bottom of the base 3, the connecting shaft 5 is arranged at the top end of the stand column 4 and rotatably connected with the stand column 4, a mounting plate is fixedly connected to the bottom end of the stand column 4 and fixedly connected with a bottom plate 1 through bolts, a water tank 22 is arranged on one side of the stand column 4, a water pump 23 is arranged on the front side of the water tank 22, a water inlet pipe;
the adjusting component comprises a connecting rod 8, a supporting rod 9, a motor 10, a transmission shaft 11, a transverse shaft 12, a vertical shaft 13 and a rotating shaft 14, the bottom of the motor 10 is fixedly connected with a base, the base is fixedly connected with the top of the bottom plate 1, the transmission shaft 11 is fixedly connected with the output end of the motor 10, one end of the bottom of the atomizing gun 2 is fixedly connected with a lug 15, the top end of the connecting rod 8 is hinged with the lug 15, one end of the transmission shaft 11, which is far away from the motor 10, is fixedly connected with a gear disc 16, the supporting rod 9 is fixedly connected with one side, which is close to the connecting rod 8, of the gear disc 16, the supporting rod 9 penetrates through the connecting rod 8 and is rotatably connected with the connecting rod 8, the transverse shaft 12 is arranged on the front side of the gear disc 16, two ends of the transverse shaft 12 are both provided with second vertical plates 21, the second vertical plates, 14 both ends of pivot all are provided with first riser 19, 19 fixed connection of first riser are in 1 bottom of bottom plate, 14 both ends of pivot all rotate with first riser 19 through the bearing and are connected, pivot 14 sets up in vertical axis 13 bottom, the cross axle 12 outside is close to the first bevel gear of 13 one end fixedly connected with of vertical axis, the vertical axis 13 top is provided with the second bevel gear with first bevel gear engaged with, vertical axis 13 bottom fixedly connected with third bevel gear, the 14 outside fixedly connected with of pivot and the fourth bevel gear of third bevel gear engaged with, the 12 outsides of cross axle are provided with brush 17, 1 bottom of bottom plate is provided with box body 18, 18 one side of box body articulates there is door plant 20, 20 outside fixedly connected with handles of door plant, box body 18 is close to brush 17 one side.
The implementation mode is specifically as follows: by arranging the atomizing cannon 2 on the top of the bottom plate 1, water in the water tank 22 is extracted by the water pump 23 during use, and then the water is conveyed to the atomizing cannon 2 through the water outlet pipe 24, so that dust in the air can be cleaned through the ejection of the atomizing cannon 2, meanwhile, the output end of the motor 10 drives the transmission shaft 11 to rotate, the transmission shaft 11 can drive the gear disc 16 to rotate, the outer side of the gear disc 16 is fixedly connected with the supporting rod 9, the supporting rod 9 penetrates through the connecting rod 8, so that the bottom end of the connecting rod 8 can be driven to rotate through the rotating gear disc 16, the top end of the connecting rod 8 is hinged with the lug 15, so that the top end of the connecting rod 8 is driven to deflect when the bottom end of the connecting rod 8 rotates, so that one end of the atomizing cannon 2 is driven to swing through the lug 15, the atomizing cannon 2, and the round bar 7 is connected with the atomizing cannon 2 in a rotating way, so when the connecting rod 8 drives one end of the atomizing cannon 2 to swing, the other end of the atomizing cannon 2 can swing along with the connecting rod, so that one end of the atomizing cannon 2, which is far away from the motor 10, continuously reciprocates in the front-back and vertical directions, sprayed water mist can cover a larger area, the dust removal efficiency can be improved, the cross shaft 12 can be driven to rotate through the meshing of the gear disc 16 and the straight gear, the vertical shaft 13 can be driven to rotate through the meshing of the first bevel gear and the second bevel gear, and similarly, the rotating shaft 14 can be driven to rotate through the meshing of the third bevel gear and the fourth bevel gear, so that the brush 17 at the outer side of the rotating shaft is driven to rotate, thereby a mixture formed by dust and water drops on the ground can be cleaned, the dirt on the ground can be conveyed into the box body, consequently can handle the inside accumulational filth of box body 18 through opening door plant 20 to water, can adjust spray angle automatically at the in-process that 2 blowout water mists of atomizing big gun remove dust through this structure, thereby can cover bigger dust removal scope, can show and improve dust collection efficiency, and can form the mixture similar to mud form with the dust when the water droplet falls to subaerial, can clear up it through brush 17, thereby keep the cleanness on ground, consequently, can carry out thorough cleaing away to the dust of job site etc. through 2 and the cooperation of atomizing big gun and brush 17, clear up effectually in the actual operation process, the cleaning efficiency is high.
The working principle is as follows: the output end of the motor 10 drives the transmission shaft 11 to rotate, the gear disc 16 can be driven to rotate, the connecting rod 8 can be driven to rotate through the rotating gear disc 16, and further the atomization gun 2 is driven to swing, the cross shaft 12 can be driven to rotate through the meshing of the gear disc 16 and the straight gear, the vertical shaft 13 can be driven to rotate through the meshing of the first bevel gear and the second bevel gear, similarly, the rotating shaft 14 can be driven to rotate through the meshing of the third bevel gear and the fourth bevel gear, so that the brush 17 on the outer side of the rotating shaft is driven to rotate, the mixture formed by the dust on the ground and water drops can be cleaned, the dirt on the ground can be cleaned to the inner part of the box body 18 through the rotating brush 17, the door plate 20 is hinged on one side of the box body 18, therefore, the dirt accumulated in the box body 18 can be treated by opening the door plate 20 through water, and the spraying angle can be, and when the water drops to the ground, it forms a mud-like mixture with the dust, which can be cleaned by the brush 17.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an automatic cleaning equipment for job site sprays, dust absorption and clearance, includes bottom plate (1), bottom plate (1) top is provided with atomizing big gun (2), its characterized in that: the bottom end of the atomizing gun (2) is provided with a rotating assembly, and one end of the bottom of the atomizing gun (2) is provided with an adjusting assembly;
the rotating assembly comprises a base (3), a stand column (4) and a connecting shaft (5), supporting plates (6) are arranged on the front side and the rear side of the atomizing gun (2), a round rod (7) is fixedly connected to one side, close to the atomizing gun (2), of the supporting plate (6), the round rod (7) is rotatably connected with the atomizing gun (2) through a bearing, the base (3) is fixedly connected to the bottom of the supporting plate (6), the connecting shaft (5) is fixedly connected to the bottom of the base (3), and the connecting shaft (5) is arranged at the top end of the stand column (4) and is rotatably connected with the stand column (4);
the adjustment assembly comprises a connecting rod (8), a supporting rod (9), a motor (10), a transmission shaft (11), a transverse shaft (12), a vertical shaft (13) and a rotating shaft (14), the transmission shaft (11) is fixedly connected with the output end of the motor (10), one end of the bottom of the atomizing gun (2) is fixedly connected with a lug (15), the top end of the connecting rod (8) is hinged to the lug (15), the transmission shaft (11) is far away from the gear disc (16) which is fixedly connected with one end of the motor (10), the supporting rod (9) is fixedly connected with the gear disc (16) and is close to one side of the connecting rod (8), the supporting rod (9) penetrates through the connecting rod (8) and is rotatably connected with the connecting rod (8), the transverse shaft (12) is arranged on the front side of the gear disc (16), the outer side of the transverse shaft (12) is fixedly connected with a straight gear meshed with the gear disc (16), the vertical shaft (, the rotating shaft (14) is arranged at the bottom end of the vertical shaft (13), the outer side of the transverse shaft (12) is provided with a brush (17), the bottom of the bottom plate (1) is provided with a box body (18), and one side, close to the brush (17), of the box body (18) is provided with an opening.
2. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: the outer side of the transverse shaft (12) is close to one end of the vertical shaft (13) and is fixedly connected with a first bevel gear, the top end of the vertical shaft (13) is provided with a second bevel gear meshed with the first bevel gear, the bottom end of the vertical shaft (13) is fixedly connected with a third bevel gear, and the outer side of the rotating shaft (14) is fixedly connected with a fourth bevel gear meshed with the third bevel gear.
3. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: the improved structure of the motor is characterized in that first vertical plates (19) are arranged at two ends of the rotating shaft (14), the first vertical plates (19) are fixedly connected to the bottom of the base plate (1), and two ends of the rotating shaft (14) are rotatably connected with the first vertical plates (19) through bearings.
4. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: one side of the box body (18) is hinged with a door panel (20), and the outer side of the door panel (20) is fixedly connected with a handle.
5. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: the two ends of the transverse shaft (12) are respectively provided with a second vertical plate (21), the second vertical plates (21) are fixedly connected to the top of the bottom plate (1), and the transverse shaft (12) is rotatably connected with the second vertical plates (21) through bearings.
6. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: stand (4) bottom fixedly connected with mounting panel, the mounting panel passes through bolt and bottom plate (1) fixed connection, stand (4) one side is provided with water tank (22), water tank (22) front side is provided with water pump (23), water pump (23) input is provided with the inlet tube, water pump (23) are linked together through inlet tube and water tank (22), water pump (23) output is provided with outlet pipe (24), water pump (23) one end is kept away from in outlet pipe (24) and atomizing big gun (2) are linked together.
7. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: the bottom plate (1) bottom is provided with the gyro wheel, bottom plate (1) top one side fixedly connected with pushes away handle (25), the equal fixedly connected with riser in both sides around box body (18), riser top and bottom plate (1) fixed connection.
8. The automatic cleaning equipment for spraying, dust sucking and cleaning of a construction site according to claim 1, wherein: the bottom of the motor (10) is fixedly connected with a base, and the base is fixedly connected to the top of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559964.1A CN112807910A (en) | 2020-12-25 | 2020-12-25 | Automatic cleaning equipment for spraying, dust collecting and cleaning in construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011559964.1A CN112807910A (en) | 2020-12-25 | 2020-12-25 | Automatic cleaning equipment for spraying, dust collecting and cleaning in construction site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112807910A true CN112807910A (en) | 2021-05-18 |
Family
ID=75853829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011559964.1A Pending CN112807910A (en) | 2020-12-25 | 2020-12-25 | Automatic cleaning equipment for spraying, dust collecting and cleaning in construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112807910A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191408443A (en) * | 1914-04-03 | 1915-04-06 | John C Lundy | Improvements in Street Sweeping Apparatus. |
| EP0807716A2 (en) * | 1996-05-14 | 1997-11-19 | Suiden Co., Ltd. | Large-scale cleaning vehicle |
| CN107088540A (en) * | 2017-06-20 | 2017-08-25 | 黄河科技学院 | A kind of construction site dust arrester |
| CN208878155U (en) * | 2018-04-28 | 2019-05-21 | 山西瑞洁环保工程有限公司 | A kind of environmental protection depositing dust fog gun machine |
| CN110359946A (en) * | 2019-07-24 | 2019-10-22 | 安徽友邦矿业有限公司 | A kind of fog gun machine |
| CN211753478U (en) * | 2020-02-04 | 2020-10-27 | 韩德贵 | Dust removal spray set is used to job site |
| WO2020220145A1 (en) * | 2019-05-02 | 2020-11-05 | Mckeen David Brian | Mobile liquid deployment vehicle and system |
| CN211936137U (en) * | 2020-04-08 | 2020-11-17 | 姜晓龙 | Building construction working face sprays dust device |
-
2020
- 2020-12-25 CN CN202011559964.1A patent/CN112807910A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191408443A (en) * | 1914-04-03 | 1915-04-06 | John C Lundy | Improvements in Street Sweeping Apparatus. |
| EP0807716A2 (en) * | 1996-05-14 | 1997-11-19 | Suiden Co., Ltd. | Large-scale cleaning vehicle |
| CN107088540A (en) * | 2017-06-20 | 2017-08-25 | 黄河科技学院 | A kind of construction site dust arrester |
| CN208878155U (en) * | 2018-04-28 | 2019-05-21 | 山西瑞洁环保工程有限公司 | A kind of environmental protection depositing dust fog gun machine |
| WO2020220145A1 (en) * | 2019-05-02 | 2020-11-05 | Mckeen David Brian | Mobile liquid deployment vehicle and system |
| CN110359946A (en) * | 2019-07-24 | 2019-10-22 | 安徽友邦矿业有限公司 | A kind of fog gun machine |
| CN211753478U (en) * | 2020-02-04 | 2020-10-27 | 韩德贵 | Dust removal spray set is used to job site |
| CN211936137U (en) * | 2020-04-08 | 2020-11-17 | 姜晓龙 | Building construction working face sprays dust device |
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Application publication date: 20210518 |
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| RJ01 | Rejection of invention patent application after publication |