CN107044509A - Drive connection frame for road isolated column ground swe eper - Google Patents
Drive connection frame for road isolated column ground swe eper Download PDFInfo
- Publication number
- CN107044509A CN107044509A CN201710286825.8A CN201710286825A CN107044509A CN 107044509 A CN107044509 A CN 107044509A CN 201710286825 A CN201710286825 A CN 201710286825A CN 107044509 A CN107044509 A CN 107044509A
- Authority
- CN
- China
- Prior art keywords
- connecting bracket
- gear
- conical gear
- disc brush
- isolated column
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
-
- 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
- E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
-
- 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
- E01H1/056—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having horizontal axes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses the drive connection frame for road isolated column ground swe eper, it is made up of connection bent plate, connecting bracket assembly and gear drive；Gear drive drives conical gear, trunnion axis, disc brush connecting shaft and connecting bracket main shaft to constitute by active spur gear, connecting bracket center large straight gear, connecting bracket center large conical gear, horizontal conveyor conical gear, disc brush, top of the connecting bracket center large straight gear with connecting bracket center large conical gear coaxially with connecting bracket main shaft is coaxially connected, and connecting bracket center large straight gear is meshed with active spur gear；Trunnion axis is arranged on the horizontal stand of connecting bracket assembly, and the horizontal conveyor conical gear of its one end is meshed with connecting bracket center large conical gear, and the horizontal conveyor conical gear of the other end is meshed with disc brush driving conical gear.Drive connection frame of the present invention drives disc brush work, can effectively cross isolated column support post, it is ensured that cleaning work is smoothed out.
Description
Technical field
The invention belongs to city clean environment firendly equipment technical field, it is adaptable to road cleaning device, and in particular to for horse
The drive connection frame of road isolated column ground swe eper.
Background technology
Originally in urban sanitation work, mode is cleaned using artificial more than clear Xian of road isolated column, labor intensity is big and deposits
In potential safety hazard, many burdens are added to sanitationman.In recent years, road isolated column cleaning machine solved this well
Problem, but the muddy water left during the work of road isolated column cleaning machine is also while flow on the lower section road of isolated column, in isolated column
Underface road surface on always remain muddy water, it is impossible to disposable collecting is cleaned out, cause this region need it is secondary clean, because
This, this region turns into " dead angle " that can not be cleaned using existing road isolated column cleaning machine.Generally this region is secondary
Cleaning be by artificial or high pressure water cleaning, wherein, not only working strength is big for hand sweeping, and also increases the people of cleaning person
Body security risk；And high pressure water cleaning by the region when, dust is all flushed near road centre position so that another track
Dust collecting and cleaning vehicles can not be collected in real time, after the moisture evaporation for causing the region part, and various dusts cause two still with Che Erqi
Secondary pollution environment, it is impossible to reach the purpose of high-efficiency cleaning.
So a kind of new road isolated column ground swe eper of exploitation is very necessary, and it is clear on road isolated column ground
In the design process of sweeping device, the design of its drive connection is the key of whole device high-efficiency operation, due to road isolation
The upright supports for being provided with guardrail base are needed to connect between the particularity of column structure, its every group of isolated column, and guardrail bottom
Seat will cause to hinder to the work of road isolated column ground swe eper cleaning brush, cause the bending of bristle, it is impossible to thoroughly clear
The bottom surface of brush base-adjacent, hinders cleaning work, and can reduce the service life of cleaning brush, and existing transmission joint can not
Solve the problem of this special circumstances is brought.
The content of the invention
It is an object of the invention to be used for road isolated column floor cleaning there is provided one kind for above-mentioned the deficiencies in the prior art
The drive connection frame of device, by the way that the clearing apparatus with drive connection frame of the present invention is cleaned installed in road isolated column
On machine, realize and the synchronous high-efficiency on road surface immediately below isolated column and isolated column is cleaned simultaneously, additionally it is possible to effectively cross isolated column
Support post, it is ensured that cleaning work is smoothed out.With reference to Figure of description, technical scheme is as follows：
For the drive connection frame of road isolated column ground swe eper, wherein, the drive connection frame is by connection bent plate
7th, connecting bracket assembly 3 and gear drive composition；
The gear drive is by active spur gear 5, connecting bracket center large straight gear 6, connecting bracket center great circle
Bevel gear 8, horizontal conveyor conical gear 9, disc brush driving conical gear 11, trunnion axis 12, disc brush connecting shaft 13 and connecting bracket
Main shaft 14 is constituted；
The active spur gear 5 is located at the lower section of connection bent plate 7, with the motor 4 of road isolated column ground swe eper
Output shaft is coaxially connected, and connecting bracket center large straight gear 6 is coaxial fixed with connecting bracket center large conical gear 8, and
Top with connecting bracket main shaft 14 is coaxially connected, the connecting bracket center positioned at the top of connecting bracket center large conical gear 8
Large straight gear 6 is meshed with active spur gear 5；
The disc brush driving conical gear 11 passes through disc brush connecting shaft 13 and the disc brush 1 of road isolated column ground swe eper
It is coaxially connected；
Radially horizontal stand is distributed with to circumferencial direction in the disc brush connecting bracket assembly 3, and the trunnion axis 12 is pacified
On the horizontal stand of connecting bracket assembly 3, the horizontal conveyor conical gear 9 is coaxially mounted to the two ends of trunnion axis 12, one
The horizontal conveyor conical gear 9 at end is meshed with connecting bracket center large conical gear 8, the horizontal conveyor conical gear of the other end
9 are meshed with disc brush driving conical gear 11.
For the drive connection frame of road isolated column ground swe eper, wherein, the connecting bracket assembly 3 is radially
Three horizontal stands are evenly distributed with to circumferencial direction, correspondingly, the disc brush 1 of road isolated column ground swe eper has three
Group, assembly connection is in the end of three horizontal stands of connecting bracket assembly 3 respectively；
The connecting bracket main shaft 14 is located at the center of connecting bracket assembly 3, and fixes company with connecting bracket assembly 3
Connect.
For the drive connection frame of road isolated column ground swe eper, wherein, installed in the outside of the trunnion axis 12
There is horizontal axle sleeve 10, drive conical gear 11 to be also equipped with shield with the position that horizontal conveyor conical gear 9 is meshed in disc brush
2。
Compared with prior art, the beneficial effects of the present invention are：
1st, it is clear installed in road isolated column using the road isolated column ground swe eper of drive connection frame of the present invention
In washing machine, the perfect function of road isolated column cleaning machine realizes the synchronous high-efficiency to road surface immediately below isolated column and isolated column
Clean.
2nd, in sweeper during traveling is cleaned, road isolated column ground swe eper will be adjusted to suitable work
The bristle for making position, i.e. disc brush extends through road isolated column, and does not influence the connection branch of disc brush and drive connection frame of the present invention
The normal operation of frame assembly, is rotated by the mutual cooperation of the connecting bracket assembly and disc brush of drive connection frame of the present invention,
Realize the dust rubbish after being smoothed out for cleaning work, and cleaning and rubbish is sucked into by the Acetabula device of cleaning outside car
In accumulating room, to realize the efficient cleaning of non-secondary pollution.
3rd, the drive connection frame of the present invention for road isolated column ground swe eper, using connecting bracket assembly and
The design that disc brush is reversely rotated each other, it is ensured that clearing apparatus clean traveling operation process in, connecting bracket assembly and
The smooth obstacle detouring of disc brush, i.e. connecting bracket assembly, in instantaneous touch, pass through the traveling and connection of sweeper with road isolated column
The rotation direction of frame assembly will effectively cross isolated column support post, it is ensured that cleaning work is smoothed out.
4th, the drive connection frame of the present invention for road isolated column ground swe eper is ingenious in design and simple in construction,
So that the manufacture of clearing apparatus, installation and removal are easier, and repair very convenient, existing road can be directly mounted at
On isolated column cleaning machine, easily promote the use of.
Brief description of the drawings
Fig. 1 is the front view of the drive connection frame of the present invention for road isolated column ground swe eper；
Fig. 2 be the drive connection frame of the present invention for road isolated column ground swe eper in, connecting bracket assembly
And transmission mechanism partial structurtes enlarged drawing；
Fig. 3 is the stereochemical structure signal for the road isolated column ground swe eper for being provided with drive connection frame of the present invention
Figure；
Fig. 4 is the front view for the road isolated column ground swe eper for being provided with drive connection frame of the present invention；
Fig. 5 is the road isolated column ground swe eper operation process signal for being provided with drive connection frame of the present invention
Figure；
In figure：
1- disc brushes；2- shields；3- connecting bracket assemblies；
4- motors；5- active spur gears；6- connecting brackets center large straight gear；
7- connection bent plates；8- connecting brackets center large conical gear；9- horizontal conveyor conical gears；
The horizontal axle sleeves of 10-；11- disc brushes drive conical gear；12- trunnion axis；
13- disc brush connecting shafts；14- connecting bracket main shafts.
Embodiment
For technical scheme is expanded on further, with reference to Figure of description, embodiment of the invention is as follows：
As shown in figure 1, the invention discloses a kind of drive connection frame for road isolated column ground swe eper, by even
Connect bent plate 7, connecting bracket assembly 3 and gear drive composition；The gear drive is by active spur gear 5, connection branch
Frame center large straight gear 6, connecting bracket center large conical gear 8, horizontal conveyor conical gear 9, disc brush driving conical gear 11,
Trunnion axis 12, disc brush connecting shaft 13 and connecting bracket main shaft 14 are constituted.
As shown in figure 3, power source of the motor 4 as road isolated column ground swe eper, the fuselage assembling of motor 4 is fixed
On connection bent plate 7, the output shaft of motor 4 is connected through connection bent plate 7 and the gear drive of lower section, and output is dynamic
Power；Connecting bracket main shaft 14 is connected to gear drive and the connecting bracket assembly 3, and transmits power；The connection branch
Frame assembly 3 is group welding piece, and the connecting bracket assembly 3 is radially uniformly distributed to circumferencial direction is welded with three level branch
Frame, two ends are all provided with a pair of support bases above each horizontal stand；The disc brush 1 of road isolated column ground swe eper has three
Group, assembly connection is in the end of three horizontal stands of connecting bracket assembly 3 respectively.
As shown in Fig. 2 in the gear drive, the active spur gear 5 is located at the lower section of connection bent plate 7, with
The output shaft of motor 4 is coaxially connected, and connecting bracket center large straight gear 6 and connecting bracket center large conical gear 8 are coaxial
It is fixed；The connecting bracket main shaft 14 is located at the center of drive connection frame, and the connecting bracket main shaft 14 is vertically arranged, and it is pushed up
End is coaxially connected with connecting bracket center large straight gear 6, connecting bracket center large conical gear 8, and its bottom and connecting bracket are total
It is fixedly connected into 3；Connecting bracket center large straight gear 6 is located at the top of connecting bracket center large conical gear 8, and described
Connecting bracket center large straight gear 6 is meshed with active spur gear 5, power is transferred into connecting bracket main shaft 14, and then drive
Connecting bracket assembly 3 rotates；The trunnion axis 12 has three, and three level branch of connecting bracket assembly 3 are correspondingly arranged at respectively
On frame, the two ends of the trunnion axis 12 of each are arranged in the support base on horizontal stand, and horizontal conveyor conical gear 9 is coaxially pacified
Mounted in the first, last two ends of trunnion axis 12, and positioned at three head ends of trunnion axis 12 horizontal conveyor conical gear 9 and connecting bracket
Center large conical gear 8 is meshed, and transmits power；The disc brush driving conical gear 11 is coaxially connected by disc brush connecting shaft 13
Be connected on the surface of corresponding disc brush 1, and three groups of disc brushes driving conical gears 11 respectively with positioned at three ends of trunnion axis 12
The horizontal conveyor conical gear 9 at end is meshed, and transmits power.
In addition, horizontal axle sleeve 10 is provided with the outside of trunnion axis 12, in disc brush driving conical gear 11 and trunnion axis 12
The position that the horizontal conveyor conical gear 9 of end is meshed is also equipped with shield 2.
As shown in figure 4, under the driving of motor 4, the transfer route of the gear drive is two, wherein one according to
It is secondary to be：Motor 4, active spur gear 5, connecting bracket center large straight gear 6, connecting bracket center large conical gear 8, positioned at level
The horizontal conveyor conical gear 9 of the head end of axle 12, the horizontal conveyor conical gear 9 positioned at the end of trunnion axis 12, disc brush driving circular cone
Gear 11, disc brush 1；Another is followed successively by：In motor 4, active spur gear 5, connecting bracket center large straight gear 6, connecting bracket
Heart large conical gear 8, connecting bracket main shaft 14, connecting bracket assembly 3, disc brush 1.Under the driving of motor 4, each group of disc brush 1
Unidirectional rotation can be realized, at the same time, three groups of disc brushes 1 can also realize linkage under the drive of connecting bracket assembly 3
Rotation, and the linkage rotation direction of three groups of disc brushes 1 is opposite with the sense of rotation of each group of disc brush 1.
The specific work process of road isolated column ground swe eper of drive connection frame of the present invention is installed such as
Under：
As shown in Figure 4 and Figure 5, disc brush 1 described in three groups is radial is circumferentially evenly distributed on the three of connecting bracket assembly 3
On individual horizontal stand, and each other without interference, when road isolated column ground swe eper starts operation, road isolated column
The bristle that face clearing apparatus will be adjusted to suitable operating position, i.e. disc brush extends through road isolated column, covers road isolated column
The road surface of underface, and the normal operation of disc brush and connecting bracket assembly is not influenceed, after the startup of motor 4, the driving of motor 4 is actively straight
Gear 5 turns clockwise, the rotate counterclockwise of connecting bracket center large straight gear 6, and connecting bracket center large conical gear 8 also will be inverse
Hour hands rotate, now, the rotate counterclockwise under the drive of connecting bracket center large conical gear 8 of connecting bracket assembly 3, and then band
Move three groups of linkage rotations counterclockwise of disc brush 1；Connecting bracket center large conical gear 8 further drives the level of the head end of trunnion axis 12
Drive cone gear 9 rotates, and by the transmission of trunnion axis 12, drives the horizontal conveyor conical gear 9 of the end of trunnion axis 12 to revolve
Turn, and then drive disc brush driving conical gear 11 to turn clockwise, now, under the driving that disc brush drives conical gear 11, often
One group of disc brush 1 is by rotation clockwise.Direction as shown in Figure 4, sweeper is advanced forward, each group of rotation clockwise of disc brush 1, connection
The rotate counterclockwise of bracket assembly 3, the two reversely rotate design, it is ensured that the clearing apparatus clean traveling operation process in,
Connecting bracket assembly 3 and the smooth obstacle detouring of disc brush 1, when connecting bracket assembly will be contacted with road isolated column column bottom in moment
When, advanced forward by sweeper and the support post of isolated column will be effectively crossed with the rotation direction of connecting bracket assembly, it is ensured that be clear
Operation is swept to be smoothed out.
Claims (3)
1. the drive connection frame for road isolated column ground swe eper, it is characterised in that：
The drive connection frame is made up of connection bent plate (7), connecting bracket assembly (3) and gear drive；
The gear drive is by active spur gear (5), connecting bracket center large straight gear (6), connecting bracket center great circle
Bevel gear (8), horizontal conveyor conical gear (9), disc brush driving conical gear (11), trunnion axis (12), disc brush connecting shaft (13)
With connecting bracket main shaft (14) composition；
The active spur gear (5) is located at the lower section of connection bent plate (7), the motor (4) with road isolated column ground swe eper
Output shaft it is coaxially connected, connecting bracket center large straight gear (6) and connecting bracket center large conical gear (8) are coaxial solid
It is fixed, and, connection positioned at connecting bracket center large conical gear (8) above coaxially connected with the top of connecting bracket main shaft (14)
Carriage center large straight gear (6) is meshed with active spur gear (5)；
The disc brush driving conical gear (11) passes through disc brush connecting shaft (13) and the disc brush of road isolated column ground swe eper
(1) it is coaxially connected；
Radially horizontal stand is distributed with to circumferencial direction in the connecting bracket assembly (3), and the trunnion axis (12) is arranged on
On the horizontal stand of connecting bracket assembly (3), the horizontal conveyor conical gear (9) is coaxially mounted to trunnion axis (12) two ends,
The horizontal conveyor conical gear (9) of one end is meshed with connecting bracket center large conical gear (8), the horizontal conveyor circle of the other end
Bevel gear (9) is meshed with disc brush driving conical gear (11).
2. it is used for the drive connection frame of road isolated column ground swe eper as claimed in claim 1, it is characterised in that：
The connecting bracket assembly (3) is radially evenly distributed with three horizontal stands, correspondingly, horse to circumferencial direction
The disc brush (1) of road isolated column ground swe eper has three groups, respectively three level branch of the assembly connection in connecting bracket assembly (3)
The end of frame；
The connecting bracket main shaft (14) is located at the center of connecting bracket assembly (3), and fixes company with connecting bracket assembly (3)
Connect.
3. it is used for the drive connection frame of road isolated column ground swe eper as claimed in claim 1, it is characterised in that：
Horizontal axle sleeve (10) is installed on the outside of the trunnion axis (12), in disc brush driving conical gear (11) and horizontal conveyor
The position that conical gear (9) is meshed is also equipped with shield (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286825.8A CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
| PCT/CN2018/080615 WO2018196533A1 (en) | 2017-04-27 | 2018-03-27 | Drive connection frame for use in device for sweeping ground under road fence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286825.8A CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044509A true CN107044509A (en) | 2017-08-15 |
| CN107044509B CN107044509B (en) | 2023-10-10 |
Family
ID=59546528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286825.8A Active CN107044509B (en) | 2017-04-27 | 2017-04-27 | Transmission connecting frame for road isolation fence ground cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044509B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196533A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Drive connection frame for use in device for sweeping ground under road fence |
| WO2018196532A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Device for sweeping ground under road fence |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011417A (en) * | 2000-06-28 | 2002-01-15 | Nobuhiko Sugita | Device for cleaning court surface and the like |
| DE102007055458A1 (en) * | 2007-11-09 | 2009-05-14 | Ing. Haaga Werkzeugbau Gmbh & Co. Kg | Hand-operated road sweeper, has circular brooms connected with sweeping roller for movement transmission over angle drive, and drive units provided for transferring driving powers to circular brooms and sweeping roller |
| CN201704660U (en) * | 2010-07-09 | 2011-01-12 | 北京事必达汽车有限责任公司 | Dish broom-type traffic guardrail cleaning vehicle |
| CN201843112U (en) * | 2010-11-03 | 2011-05-25 | 河南远东大方道路养护设备有限公司 | Guardrail cleaning machine on urban road |
| CN102619180A (en) * | 2012-04-17 | 2012-08-01 | 长沙中联重科环卫机械有限公司 | Guardrail cleaning device and guardrail cleaning vehicle |
| CN203684149U (en) * | 2013-12-02 | 2014-07-02 | 昆明理工大学 | Small-sized sweeping cleaner gear driving mechanism |
| CN206785936U (en) * | 2017-04-27 | 2017-12-22 | 王海维 | Drive connection frame for road isolated column ground swe eper |
-
2017
- 2017-04-27 CN CN201710286825.8A patent/CN107044509B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002011417A (en) * | 2000-06-28 | 2002-01-15 | Nobuhiko Sugita | Device for cleaning court surface and the like |
| DE102007055458A1 (en) * | 2007-11-09 | 2009-05-14 | Ing. Haaga Werkzeugbau Gmbh & Co. Kg | Hand-operated road sweeper, has circular brooms connected with sweeping roller for movement transmission over angle drive, and drive units provided for transferring driving powers to circular brooms and sweeping roller |
| CN201704660U (en) * | 2010-07-09 | 2011-01-12 | 北京事必达汽车有限责任公司 | Dish broom-type traffic guardrail cleaning vehicle |
| CN201843112U (en) * | 2010-11-03 | 2011-05-25 | 河南远东大方道路养护设备有限公司 | Guardrail cleaning machine on urban road |
| CN102619180A (en) * | 2012-04-17 | 2012-08-01 | 长沙中联重科环卫机械有限公司 | Guardrail cleaning device and guardrail cleaning vehicle |
| CN203684149U (en) * | 2013-12-02 | 2014-07-02 | 昆明理工大学 | Small-sized sweeping cleaner gear driving mechanism |
| CN206785936U (en) * | 2017-04-27 | 2017-12-22 | 王海维 | Drive connection frame for road isolated column ground swe eper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196533A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Drive connection frame for use in device for sweeping ground under road fence |
| WO2018196532A1 (en) * | 2017-04-27 | 2018-11-01 | 王海维 | Device for sweeping ground under road fence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044509B (en) | 2023-10-10 |
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