CN110593178A - Sweeping brush suitable for sweeping machine - Google Patents
Sweeping brush suitable for sweeping machine Download PDFInfo
- Publication number
- CN110593178A CN110593178A CN201910781845.1A CN201910781845A CN110593178A CN 110593178 A CN110593178 A CN 110593178A CN 201910781845 A CN201910781845 A CN 201910781845A CN 110593178 A CN110593178 A CN 110593178A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- brush
- portal frame
- sweeper
- variable frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010408 sweeping Methods 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract 2
- 241001417527 Pempheridae Species 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 13
- 238000013016 damping Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
-
- 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
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
-
- 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
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
- E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction 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
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
- E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
- E01H1/0845—Apparatus dislodging all of the dirt by suction ; Suction nozzles with mechanical loosening or feeding instruments for the dirt to be sucked- up, e.g. brushes, scrapers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
The invention discloses a road sweeping brush suitable for a road sweeping vehicle, which comprises a portal frame, wherein a roller brush is installed at the bottom of the portal frame, a cross beam is welded at the top of the portal frame through a vertical rod, a first connecting rod is rotatably connected to the end part between the cross beam and the portal frame, a second connecting rod is hinged to the end part of the first connecting rod, a second variable frequency motor is installed at the end part of the second connecting rod, a brush disc assembly is fixedly connected to an output shaft of the second variable frequency motor, an electric cylinder body is further installed between one side of the first connecting rod and one side of the second connecting rod, a water spraying assembly is fixedly installed at the front end of the portal frame, a dust collection cover is further installed at the rear end of the portal frame, and a dust collection pipeline is integrally arranged on the back surface of the dust. The device structural design is simple reasonable, convenient operation, and the regulation of being convenient for, the function is various, cleans effectually, and safety and stability, application scope is wide, is favorable to promoting and popularizing.
Description
Technical Field
The invention belongs to the technical field of road sweeper brushes, and particularly relates to a road sweeper brush suitable for a road sweeper.
Background
The sweeping machine is one of sanitation equipment, is a novel high-efficient equipment of cleaning that collects road surface and cleans, rubbish recovery and transportation as an organic whole. The sweeping machine is a special environmental sanitation vehicle provided with sweeping systems such as a sweeping brush and the like, and is mainly used for cleaning operation in environmental sanitation departments in large and medium-sized cities. The sweeping machine greatly liberates the working strength of sanitation workers, improves the working efficiency and reduces secondary pollution such as dust emission and the like. The road brush that passes through of current street sweeper is mostly clean road surface, but current brush of sweeping mostly is cylinder and carousel formula, and how much there is certain limitation, leads to cleaning the area and is limited, and current brush of sweeping structure is fixed in addition, is not convenient for adjust, to the dust or the debris of cleaning in time clearance also not convenient for, is unfavorable for extensive popularization and popularization.
Disclosure of Invention
The invention aims to provide a sweeping brush suitable for a sweeping vehicle, which has the advantages of simple and reasonable structural design, convenience in operation, convenience in adjustment, multiple functions, good sweeping effect, safety, stability and wide application range, and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a road sweeper brush suitable for a road sweeper comprises a portal frame, wherein a hair roller brush is installed at the bottom of the portal frame, a first variable frequency motor connected with the hair roller brush in a transmission mode is further installed on one side of the portal frame, a cross beam is welded to the top of the portal frame through a vertical rod, a first connecting rod is connected with the end portion between the cross beam and the portal frame in a rotating mode, a second connecting rod is hinged to the end portion of the first connecting rod, a second variable frequency motor is installed at the end portion of the second connecting rod, a brush disc assembly is fixedly connected to an output shaft of the second variable frequency motor, an electric cylinder body is further installed between one side of the first connecting rod and one side of the second connecting rod, a driven gear is connected to the top of the first connecting rod in a penetrating mode through the cross beam through a pin shaft, forward and reverse rotating motors are further installed at two ends of the bottom of the cross beam, and transmission gears connected, the front end of portal frame fixed mounting watering subassembly, and the rear end of portal frame still installs the dust cage, the back integral type of dust cage is equipped with the dust absorption pipeline.
Preferably, a fixed seat is welded on the rear side of the top of the cross beam and is fixedly connected with a lifting driving mechanism on the sweeping machine.
Preferably, the brush dish subassembly includes the carousel with second inverter motor output shaft fixed connection, and the bottom of carousel is the at least five damping spring of group of angle installations such as annular along the central point of carousel, damping spring's bottom fixedly connected with mounting panel, and the bottom movable mounting of mounting panel has the brush body.
Preferably, the bottom of mounting panel is the equidistance and is equipped with six mounting grooves at least, and the outer end of mounting groove is equipped with the opening, the top of brush body slides and pegs graft in the mounting groove, stop device is still installed to the outer tip that the bottom of mounting panel is located the mounting groove, and the limiting plate is the baffle of being connected through return spring and mounting panel.
Preferably, the brush body includes the protruding style of calligraphy billet corresponding with the mounting groove shape size, and the tip fixed mounting of protruding style of calligraphy billet has the galvanized spring steel wire.
Preferably, the sprinkling assembly comprises a water pipe arranged on the portal frame, and nozzles with flat ports are arranged on the surface of the water pipe at equal intervals.
Compared with the prior art, the invention has the beneficial effects that:
the cleaning effect on the road surface can be effectively improved by matching the brush roller brush driven by the first variable frequency motor on the portal frame with the brush disc component driven by the second variable frequency motor, meanwhile, the angle and the length of the brush disc component can be effectively adjusted by matching the electric cylinder body between the first connecting rod and the second connecting rod, the positive and negative motors connected with the transmission gear and the driven gear on the first connecting rod, the cleaning range is improved, for the brush disc component, the damping capacity of the mounting plate can be effectively improved by arranging the damping spring between the turntable and the mounting plate, meanwhile, the angle of the brush body at the bottom of the mounting plate can be automatically adjusted according to the road surface condition, the road surface cleaning effect is ensured, the mounting groove at the bottom of the mounting plate is matched with the limiting plate to facilitate the dismounting and the replacement of the brush body, and the dust collection cover with a dust collection pipeline can be used for automatically, simultaneously the watering subassembly can realize watering when cleaning the road surface, prevents the raise dust.
Drawings
FIG. 1 is a plan top view of the present invention;
FIG. 2 is a front plan view of the present invention;
FIG. 3 is a schematic structural view of a brush plate assembly of the present invention;
FIG. 4 is a bottom view of the mounting plate of the present invention;
FIG. 5 is a schematic view of the brush body according to the present invention.
In the figure: 1 portal frame, 2 crossbeams, 3 first connecting rods, 4 second connecting rods, 5 electric cylinder bodies, 6 second variable frequency motors, 7 brush disc assemblies, 71 rotating discs, 72 damping springs, 73 mounting plates, 731 mounting grooves, 732 limiting plates, 74 brush bodies, 741 convex steel bars, 742 galvanized spring steel wires, 8 driven gears, 9 forward and reverse rotating motors, 10 transmission gears, 11 hair roller brushes, 12 first variable frequency motors, 13 sprinkling assemblies, 14 dust hoods, 15 dust collecting pipelines and 16 fixing seats.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a road sweeping brush suitable for a road sweeping vehicle as shown in figures 1-5, which comprises a portal frame 1, wherein a hair roller brush 11 is arranged at the bottom of the portal frame 1, a first variable frequency motor 12 in transmission connection with the hair roller brush 11 is further arranged at one side of the portal frame 1, a cross beam 2 is welded at the top of the portal frame 1 through a vertical rod, a first connecting rod 3 is rotatably connected to the end part between the cross beam 2 and the portal frame 1, a fixed seat 16 is also welded at the rear side of the top of the cross beam 2, the fixed seat 16 is fixedly connected with a lifting driving mechanism on the road sweeping vehicle, a second connecting rod 4 is hinged to the end part of the first connecting rod 3, a second variable frequency motor 6 is arranged at the end part of the second connecting rod 4, a brush disc assembly 7 is fixedly connected to an output shaft of the second variable frequency motor 6, the brush disc assembly 7 comprises a rotary disc 71 fixedly connected with an output shaft of the second variable frequency, and the bottom of the rotary disc 71 is provided with at least five groups of damping springs 72 at equal angles along the central point of the rotary disc 71, the bottom of the damping spring 72 is fixedly connected with an installation plate 73, the bottom of the installation plate 73 is movably provided with a brush body 74, the bottom of the installation plate 73 is provided with at least six groups of installation grooves 731 at equal angles, the outer ends of the installation grooves 731 are provided with openings, the top of the brush body 74 is slidably inserted into the installation grooves 731, the bottom of the installation plate 73 is positioned at the outer end parts of the installation grooves 731 and is also provided with a limiting device 732, the limiting plate 732 is a baffle plate connected with the installation plate 73 through a return spring, the brush body 74 comprises a convex steel bar 741 in the shape and size corresponding to the installation grooves 731, the end parts of the convex steel bar 741 are fixedly provided with galvanized spring steel wires 742, and an electric cylinder body 5 is further arranged between one, and the top of first connecting rod 3 runs through crossbeam 2 through the round pin axle and is connected with driven gear 8, positive reverse motor 9 is still installed at the bottom both ends of crossbeam 2, and just positive reverse motor 9's output shaft runs through 2 fixedly connected with of crossbeam and driven gear 8 meshing connection's drive gear 10, portal frame 1's front end fixed mounting watering subassembly 13, and portal frame 1's rear end still installs dust cage 14, watering subassembly 13 is including installing the water pipe on portal frame 1, and the surperficial equidistance of water pipe installs the flat nozzle of port, dust cage 14's back integral type is equipped with dust absorption pipeline 15.
The electrical components appearing therein are connected to the main controller of the sweeping machine and the 220V power supply, and the main controller can be a conventional known device for controlling a computer and the like.
The working principle is as follows: when the automatic cleaning device is used, the cleaning effect on the road surface can be effectively improved by matching the brush roller brush 11 driven by the first variable frequency motor 12 on the portal frame 1 with the brush disc assembly 7 driven by the second variable frequency motor 6, meanwhile, the matching of the electric cylinder body 5 between the first connecting rod 3 and the second connecting rod 4 is utilized, the angle and the length of the brush disc assembly 7 can be effectively adjusted by matching the positive and negative motor 9 connected with the transmission gear 10 with the driven gear 8 on the first connecting rod 3, the cleaning range is improved, for the brush disc assembly 7, the damping capacity of the mounting plate 73 can be effectively improved by arranging the damping spring 72 between the rotary disc 71 and the mounting plate 73, meanwhile, the angle of the brush body 74 at the bottom of the mounting plate 73 can be automatically adjusted according to the road surface condition, the road surface cleaning effect is ensured, the mounting groove 731 at the bottom of the mounting plate 73 is matched with the limiting plate 732 to facilitate the dismounting and replacement of the brush body 74, and the dust collection cover 14 Simultaneously, the sprinkling assembly 13 can realize sprinkling water when cleaning the road surface, and dust is prevented from flying.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a sweeping brush suitable for sweeping machine, includes portal frame, its characterized in that: the automatic water spraying device is characterized in that a hair roller brush is installed at the bottom of the portal frame, a first variable frequency motor connected with the hair roller brush in a transmission mode is further installed on one side of the portal frame, a cross beam is welded to the top of the portal frame through a vertical rod, a first connecting rod is rotatably connected to the end portion between the cross beam and the portal frame, a second connecting rod is hinged to the end portion of the first connecting rod, a second variable frequency motor is installed at the end portion of the second connecting rod, a brush disc assembly is fixedly connected to an output shaft of the second variable frequency motor, an electric cylinder body is further installed between one side of the first connecting rod and one side of the second connecting rod, a driven gear is connected to the top portion of the first connecting rod through a pin shaft in a penetrating mode, forward and reverse rotating motors are further installed at two ends of the bottom of the cross beam, transmission gears connected with the forward and reverse rotating motors in a, and the rear end of the portal frame is also provided with a dust collection cover, and the back of the dust collection cover is integrally provided with a dust collection pipeline.
2. A sweeper brush suitable for use with a sweeper truck according to claim 1, wherein: the fixed seat is welded on the rear side of the top of the cross beam and is fixedly connected with a lifting driving mechanism on the sweeping machine.
3. A sweeper brush suitable for use with a sweeper truck according to claim 1, wherein: the brush disc assembly comprises a rotary disc fixedly connected with an output shaft of a second variable frequency motor, the bottom of the rotary disc is provided with at least five groups of damping springs which are installed at equal angles along the central point of the rotary disc in an annular mode, the bottom of each damping spring is fixedly connected with an installation plate, and the bottom of each installation plate is movably provided with a brush body.
4. A sweeper brush suitable for use with a sweeper truck according to claim 3, wherein: the bottom of mounting panel is equipped with six mounting grooves of organizing at least to the angle such as, and the outer end of mounting groove is equipped with the opening, the top of brush body slides and pegs graft in the mounting groove, the outer tip that the bottom of mounting panel is located the mounting groove still installs stop device, and the limiting plate is the baffle of being connected through return spring and mounting panel.
5. A sweeper brush suitable for use with a sweeper truck according to claim 4, wherein: the brush body comprises a convex-shaped steel bar corresponding to the shape and the size of the mounting groove, and a galvanized spring steel wire is fixedly mounted at the end part of the convex-shaped steel bar.
6. A sweeper brush suitable for use with a sweeper truck according to claim 1, wherein: the watering assembly comprises a water pipe arranged on the portal frame, and nozzles with flat ports are arranged on the surface of the water pipe at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781845.1A CN110593178A (en) | 2019-08-23 | 2019-08-23 | Sweeping brush suitable for sweeping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781845.1A CN110593178A (en) | 2019-08-23 | 2019-08-23 | Sweeping brush suitable for sweeping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110593178A true CN110593178A (en) | 2019-12-20 |
Family
ID=68855282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910781845.1A Pending CN110593178A (en) | 2019-08-23 | 2019-08-23 | Sweeping brush suitable for sweeping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110593178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281733A (en) * | 2020-10-09 | 2021-01-29 | 安徽瑞洁刷业有限公司 | Double straight-flow type sweeping brush of sweeping machine |
| CN114411604A (en) * | 2022-02-17 | 2022-04-29 | 安徽丰源车业有限公司 | High-performance pure electric sweeper |
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| US3618687A (en) * | 1969-07-01 | 1971-11-09 | Hoover Co | Power propelled suction cleaner |
| CN104005353A (en) * | 2014-05-30 | 2014-08-27 | 重庆暄洁环保产业（集团）股份有限公司 | Scrubber and non-motor vehicle road surface cleaning system using scrubber |
| CN105133527A (en) * | 2015-09-30 | 2015-12-09 | 贵州远方生态环保科技股份有限公司 | Road sweeper capable of reducing damage rate of tray brush and increasing cleaning ability |
| CN107366250A (en) * | 2017-06-16 | 2017-11-21 | 中北大学 | A kind of sweeper that efficiently opens ice |
| CN207015318U (en) * | 2017-07-20 | 2018-02-16 | 河北博弈共济科技发展有限公司 | A kind of carwash adaptive cleaning device |
| CN108161682A (en) * | 2017-11-24 | 2018-06-15 | 长沙双合盛企业管理有限公司 | A kind of construction site efficient steel plate derusting device |
| CN108265958A (en) * | 2018-02-05 | 2018-07-10 | 福州清河源环保科技有限公司 | A kind of apparatus of plastering for building |
| CN207812374U (en) * | 2018-02-01 | 2018-09-04 | 赣州诚博科技服务有限公司 | A kind of sanitation cart tail portion clearing apparatus |
| CN207878356U (en) * | 2018-01-18 | 2018-09-18 | 杭州大江东城市设施管养有限公司 | A kind of clearing apparatus of sweeping machine |
| CN109113006A (en) * | 2018-08-17 | 2019-01-01 | 陈枫 | A kind of road sweeper cleaned suitable for uneven road surface |
| CN109235351A (en) * | 2018-11-20 | 2019-01-18 | 长安大学 | A kind of roadmarking cleaning trailer |
-
2019
- 2019-08-23 CN CN201910781845.1A patent/CN110593178A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3618687A (en) * | 1969-07-01 | 1971-11-09 | Hoover Co | Power propelled suction cleaner |
| CN104005353A (en) * | 2014-05-30 | 2014-08-27 | 重庆暄洁环保产业（集团）股份有限公司 | Scrubber and non-motor vehicle road surface cleaning system using scrubber |
| CN105133527A (en) * | 2015-09-30 | 2015-12-09 | 贵州远方生态环保科技股份有限公司 | Road sweeper capable of reducing damage rate of tray brush and increasing cleaning ability |
| CN107366250A (en) * | 2017-06-16 | 2017-11-21 | 中北大学 | A kind of sweeper that efficiently opens ice |
| CN207015318U (en) * | 2017-07-20 | 2018-02-16 | 河北博弈共济科技发展有限公司 | A kind of carwash adaptive cleaning device |
| CN108161682A (en) * | 2017-11-24 | 2018-06-15 | 长沙双合盛企业管理有限公司 | A kind of construction site efficient steel plate derusting device |
| CN207878356U (en) * | 2018-01-18 | 2018-09-18 | 杭州大江东城市设施管养有限公司 | A kind of clearing apparatus of sweeping machine |
| CN207812374U (en) * | 2018-02-01 | 2018-09-04 | 赣州诚博科技服务有限公司 | A kind of sanitation cart tail portion clearing apparatus |
| CN108265958A (en) * | 2018-02-05 | 2018-07-10 | 福州清河源环保科技有限公司 | A kind of apparatus of plastering for building |
| CN109113006A (en) * | 2018-08-17 | 2019-01-01 | 陈枫 | A kind of road sweeper cleaned suitable for uneven road surface |
| CN109235351A (en) * | 2018-11-20 | 2019-01-18 | 长安大学 | A kind of roadmarking cleaning trailer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281733A (en) * | 2020-10-09 | 2021-01-29 | 安徽瑞洁刷业有限公司 | Double straight-flow type sweeping brush of sweeping machine |
| CN114411604A (en) * | 2022-02-17 | 2022-04-29 | 安徽丰源车业有限公司 | High-performance pure electric sweeper |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |