CN107653818A - A kind of adjustable Cleaning vehicle for guardrail - Google Patents
A kind of adjustable Cleaning vehicle for guardrail Download PDFInfo
- Publication number
- CN107653818A CN107653818A CN201711134093.7A CN201711134093A CN107653818A CN 107653818 A CN107653818 A CN 107653818A CN 201711134093 A CN201711134093 A CN 201711134093A CN 107653818 A CN107653818 A CN 107653818A
- Authority
- CN
- China
- Prior art keywords
- transverse arm
- hinged
- rotating
- hydraulic cylinder
- vehicle
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 74
- 239000000725 suspension Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005406 washing 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
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a kind of adjustable Cleaning vehicle for guardrail, including compartment, Vehicle Controller, lifting hydraulic cylinder, rotating seat, telescopic arm and cleaning device；Rotating seat is installed on compartment, and the center of the rotating part of rotating seat has vertical column, the be hinged top for being installed on column of fixing end of telescopic arm, and its movable end lifts cleaning device by suspension rod；The fixing end of lifting hydraulic cylinder is be hinged to be installed on column, and the other end is be hinged to be installed on telescopic arm；Rotating seat, lifting hydraulic cylinder, telescopic arm and cleaning device electrically connect with Vehicle Controller respectively.The device have the advantages that：Cleaning device is adjusted using lifting mode, it is set to be dangled under Gravitative Loads, so that it is guaranteed that it is parallel contact between brush roll and guardrail, improve cleaning quality, the spacing between brush roll can additionally be adjusted to adapt to the cleaning requirement of different size guardrail, and cleaning quality is improved by multiple brush rolls.
Description
Technical field
The invention belongs to public works vehicle equipment technical field, and in particular to a kind of adjustable Cleaning vehicle for guardrail.
Background technology
Road guard is a kind of means of transportation, and it is applied not only to isolate road and traffic diverging, and can also hit
Impact is absorbed when hitting so as to reduce injury.Because the reason of job specification causes guardrail to be chronically exposed in natural environment, therefore
It is improper to safeguard, becomes easily infected by dust, both have impact on aesthetic property, it is also possible to influences its normal use.Based on this, road guard needs
Municipal personnel are wanted regularly to clean, but cleaning at present is completed using manual type, long guardrail significantly increases work
Make the labor intensity of personnel while there is also very big security risk.In order to improve cleaning efficiency, labor intensity is reduced, automatically
Cleaning vehicle is developed, and is carried out high-efficiency washing to guardrail using a set of cleaning device, is the shortcomings that this cleaning vehicle：Cleaning dress
Put and be installed on by a set of movable device on headstock, so as to realize the random adjustment of cleaning device position at work, but by
There is larger weight in itself in cleaning device, cause the long-term stress effect of the parts such as connecting rod or the arm of movable device and occur curved
Song, so that producing angle between brush roll and guardrail in cleaning device, contact area between the two is reduced, is had a strong impact on
Cleaning quality.In addition, bistrichiasis brush roll is usually constant spacing, so as to adapt to the cleaning of different size guardrail.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided a kind of adjustable Cleaning vehicle for guardrail, using hanging
Dress mode adjusts cleaning device, it is dangled under Gravitative Loads, so that it is guaranteed that being parallel contact between brush roll and guardrail, improves
Cleaning quality, the spacing between brush roll can be additionally adjusted to adapt to the cleaning requirement of different size guardrail, and pass through
Multiple brush rolls improve cleaning quality.
To solve prior art problem, the invention discloses a kind of adjustable Cleaning vehicle for guardrail, including compartment, vehicle-mounted control
Device, lifting hydraulic cylinder, rotating seat, telescopic arm and cleaning device；Rotating seat is installed on compartment, the rotating part of rotating seat
Center has vertical column, and the be hinged top for being installed on column of fixing end of telescopic arm, its movable end is lifted clear by suspension rod
Wash equipment；The fixing end of lifting hydraulic cylinder is be hinged to be installed on column, and the other end is be hinged to be installed on telescopic arm；Rotating seat, act
Hydraulic cylinder, telescopic arm and cleaning device is risen to electrically connect with Vehicle Controller respectively；
Cleaning device includes the first transverse arm, the second transverse arm, power driving brush roller and regulation hydraulic cylinder；First transverse arm center with
The center of second transverse arm is hinged to form " X " type structure；The one end and the first transverse arm that adjust hydraulic cylinder are be hinged, the other end and the
Two transverse arms are hinged；The number of power driving brush roller be four and be respectively arranged in the first transverse arm both ends and the second transverse arm two
End；Power driving brush roller and regulation hydraulic cylinder electrically connect with Vehicle Controller respectively.
The invention also discloses a kind of adjustable Cleaning vehicle for guardrail, including compartment, Vehicle Controller, lifting hydraulic cylinder, rotation
Swivel base, telescopic arm and cleaning device；Rotating seat is installed on compartment, and the center of the rotating part of rotating seat has vertical stand
Post, the be hinged top for being installed on column of fixing end of telescopic arm, its movable end lift cleaning device by suspension rod；Lift liquid
The fixing end of cylinder pressure is be hinged to be installed on column, and the other end is be hinged to be installed on telescopic arm；Rotating seat, lifting hydraulic cylinder, telescopic arm and
Cleaning device electrically connects with Vehicle Controller respectively；
Cleaning device includes the first transverse arm, the second transverse arm, brush roll, rotating driving device, chain, sprocket wheel and regulation hydraulic pressure
Cylinder；The center and the center of the second transverse arm of first transverse arm are hinged to form " X " type structure；Adjust one end and first of hydraulic cylinder
Transverse arm is be hinged, the other end is hinged with the second transverse arm；The number of brush roll is four and is respectively arranged in the both ends of the first transverse arm
With the both ends of the second transverse arm；The number of sprocket wheel is four and is respectively arranged in the rotating shaft of brush roll, chain and four sprocket wheels
Formed and coordinated, the rotating shaft of rotating driving device is connected with the rotating shaft of one of brush roll；Rotating driving device and regulation hydraulic pressure
Cylinder electrically connects with Vehicle Controller respectively.
Preferably, cleaning device also includes protective cover, and the number of protective cover is installed for four and respectively
On the outside of the both ends of the first transverse arm and on the outside of the both ends of the second transverse arm.
Preferably, protective cover is circular arc, and its arc length is no more than the half of its corresponding circumference.
Preferably, protective cover is transparent shield.
Preferably, the bottom of the first transverse arm and the second transverse arm is additionally provided with spray thrower, and water tank is provided with compartment；
Spray thrower forms water route with water tank and is connected, and spray thrower electrically connects with Vehicle Controller.
Preferably, spray thrower includes switch valve, shower, nozzle and motor pump assembly；Shower is set respectively
In the bottom of the first transverse arm and the second transverse arm, nozzle is mounted equidistant on shower；The water inlet of motor pump assembly passes through switch
Valve connects the delivery port of water tank, its delivery port connection shower；Switch valve and motor pump assembly are electrically connected with Vehicle Controller respectively
Connect.
Preferably, shower nozzle is high-pressure nozzle.
Preferably, rotating seat includes base, rotating disk, gear ring, gear and electric rotating machine；Floor installation is in compartment
On, rotating disk is rotatablely installed on base, and gear ring is coaxially installed on rotating disk, and electric rotating machine is installed on compartment, and gear is installed on
It is meshed in the rotating shaft of electric rotating machine and with gear ring；Electric rotating machine electrically connects with Vehicle Controller.
Preferably, telescopic arm has at least two joint arms being mutually slidably set with.
The device have the advantages that：Cleaning device is adjusted using lifting mode, it is dangled under Gravitative Loads, from
And ensure to be parallel contact between brush roll and guardrail, improve cleaning quality, can additionally adjust spacing between brush roll with
The cleaning requirement of different size guardrail is adapted to, and cleaning quality is improved by multiple brush rolls.
Brief description of the drawings
Fig. 1 is the structure top view of a preferred embodiment of the invention；
Fig. 2 is the operating diagram of embodiment illustrated in fig. 1；
Fig. 3 is the structural front view of cleaning device in embodiment illustrated in fig. 1；
Fig. 4 is the structure top view of cleaning device in embodiment illustrated in fig. 1.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in Figures 1 to 4, a kind of adjustable Cleaning vehicle for guardrail, including compartment 9, Vehicle Controller, lifting hydraulic cylinder 11,
Rotating seat 14, telescopic arm 12 and cleaning device；Rotating seat 14 is installed on compartment 9, the center of the rotating part of rotating seat 14
With vertical column 10, the be hinged top for being installed on column 10 of fixing end of telescopic arm 12, its movable end is hung by suspension rod 13
Fill cleaning device；The fixing end of lifting hydraulic cylinder 11 is be hinged to be installed on column 10, and the other end is be hinged to be installed on telescopic arm 12；
Rotating seat 14, lifting hydraulic cylinder 11, telescopic arm 12 and cleaning device electrically connect with Vehicle Controller respectively.
Cleaning device includes the first transverse arm 1, the second transverse arm 5, power driving brush roller and regulation hydraulic cylinder 5；First transverse arm 1
Center be hinged to form " X " type structure with the center of the second transverse arm 5；Cut with scissors with the first transverse arm 1 one end of regulation hydraulic cylinder 5
Connect, the other end and the second transverse arm 5 are hinged；The number of power driving brush roller is four and is respectively arranged in the both ends of the first transverse arm 1
With the both ends of the second transverse arm 5；Power driving brush roller and regulation hydraulic cylinder 5 electrically connect with Vehicle Controller respectively.
By adjusting the flexible so as to change the angle of the first transverse arm 1 and the second transverse arm 2 of hydraulic cylinder 5, hairbrush is finally realized
The regulation of roller spacing is to adapt to the cleaning requirement of different size guardrail 16.
As another typical brush roll drive scheme, the invention also discloses a kind of adjustable Cleaning vehicle for guardrail, bag
Include compartment 9, Vehicle Controller, lifting hydraulic cylinder 11, rotating seat 14, telescopic arm 12 and cleaning device；Rotating seat 14 is installed
In on compartment 9, the center of the rotating part of rotating seat 14 has a vertical column 10, the fixing end of telescopic arm 12 is be hinged be installed on it is vertical
The top of post 10, its movable end lift cleaning device by suspension rod 13；The fixing end of lifting hydraulic cylinder 11 is be hinged to be installed on
Column 10, the other end is be hinged to be installed on telescopic arm 12；Rotating seat 14, lifting hydraulic cylinder 11, telescopic arm 12 and cleaning device
Electrically connected respectively with Vehicle Controller.
Cleaning device includes the first transverse arm 1, the second transverse arm 5, brush roll 3, rotating driving device 17, chain 7, sprocket wheel
6 and regulation hydraulic cylinder 5；The center and the center of the second transverse arm 5 of first transverse arm 1 are hinged to form " X " type structure；Adjust hydraulic pressure
One end of cylinder 5 is hinged with the first transverse arm 1, the other end and the second transverse arm 5 are be hinged；The number of brush roll 3 is four and pacified respectively
The both ends at both ends and the second transverse arm 5 loaded on the first transverse arm 1；The number of sprocket wheel 6 is four and is respectively arranged in brush roll 3
In rotating shaft, chain 7 and four sprocket wheels 6 are formed and coordinated, and the rotating shaft of rotating driving device 17 and the rotating shaft of one of brush roll connect
Connect；Rotating driving device 17 and regulation hydraulic cylinder 5 electrically connect with Vehicle Controller respectively.
As a preferred embodiment, cleaning device also includes protective cover, the number of protective cover for four and
It is respectively arranged on the outside of the both ends of the first transverse arm 1 and on the outside of the both ends of the second transverse arm 2.
As a preferred embodiment, protective cover is circular arc, its arc length be no more than its corresponding circumference two/
One.
As a preferred embodiment, protective cover is transparent shield.
As a preferred embodiment, the bottom of the first transverse arm 1 and the second transverse arm 2 is additionally provided with spray thrower, on compartment 9
It is provided with water tank 15；Spray thrower forms water route with water tank 15 and is connected, and spray thrower electrically connects with Vehicle Controller.
As a preferred embodiment, spray thrower includes switch valve, shower, nozzle 8 and motor pump assembly；Shower
The bottom of the first transverse arm 1 and the second transverse arm 2 is respectively arranged at, nozzle 8 is mounted equidistant on shower；The water inlet of motor pump assembly
Mouth connects the delivery port of water tank 15, its delivery port connection shower by switch valve；Switch valve and motor pump assembly respectively with car
Set controller electrically connects.
As a preferred embodiment, shower nozzle 7.4 is high-pressure nozzle.Shower nozzle 7.4 can not only clean to guardrail,
But also effectively avoid airborne dust.
As a preferred embodiment, rotating seat 14 includes base, rotating disk, gear ring, gear and electric rotating machine；Base is pacified
Loaded on compartment 9, rotating disk is rotatablely installed on base, and gear ring is coaxially installed on rotating disk, and electric rotating machine is installed on compartment 9,
Gear is installed in the rotating shaft of electric rotating machine and is meshed with gear ring；Electric rotating machine electrically connects with Vehicle Controller.
As a preferred embodiment, telescopic arm 12 has at least two joint arms being mutually slidably set with.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of adjustable Cleaning vehicle for guardrail, including compartment（9）And Vehicle Controller, it is characterised in that：Also include lifting hydraulic pressure
Cylinder（11）, rotating seat（14）, telescopic arm（12）With cleaning device；The rotating seat（14）It is installed on the compartment（9）On,
The rotating seat（14）The center of rotating part there is vertical column（10）, the telescopic arm（12）The be hinged installation of fixing end
In the column（10）Top, its movable end passes through suspension rod（13）Lift the cleaning device；The lifting hydraulic cylinder
（11）Fixing end be hinged be installed on the column（10）, the other end is be hinged to be installed on the telescopic arm（12）；The rotating seat
（14）, lifting hydraulic cylinder（11）, telescopic arm（12）Electrically connected respectively with the Vehicle Controller with cleaning device；
The cleaning device includes the first transverse arm（1）, the second transverse arm（5）, power driving brush roller and regulation hydraulic cylinder（5）；Institute
State the first transverse arm（1）It is central with second transverse arm（5）Center be hinged to form " X " type structure；The regulation hydraulic pressure
Cylinder（5）One end and first transverse arm（1）The be hinged, other end and second transverse arm（5）It is be hinged；The power driving brush roller
Number is four and is respectively arranged in first transverse arm（1）Both ends and second transverse arm（5）Both ends；The power
Brush roll and the regulation hydraulic cylinder（5）Electrically connected respectively with the Vehicle Controller.
2. a kind of adjustable Cleaning vehicle for guardrail, including compartment（9）And Vehicle Controller, it is characterised in that：Also include lifting hydraulic pressure
Cylinder（11）, rotating seat（14）, telescopic arm（12）With cleaning device；The rotating seat（14）It is installed on the compartment（9）On,
The rotating seat（14）The center of rotating part there is vertical column（10）, the telescopic arm（12）The be hinged installation of fixing end
In the column（10）Top, its movable end passes through suspension rod（13）Lift the cleaning device；The lifting hydraulic cylinder
（11）Fixing end be hinged be installed on the column（10）, the other end is be hinged to be installed on the telescopic arm（12）；The rotating seat
（14）, lifting hydraulic cylinder（11）, telescopic arm（12）Electrically connected respectively with the Vehicle Controller with cleaning device；
The cleaning device includes the first transverse arm（1）, the second transverse arm（5）, brush roll（3）, rotating driving device（17）, chain
Bar（7）, sprocket wheel（6）With regulation hydraulic cylinder（5）；First transverse arm（1）It is central with second transverse arm（5）Center mutually
It is be hinged to form " X " type structure；The regulation hydraulic cylinder（5）One end and first transverse arm（1）The be hinged, other end and described the
Two transverse arms（5）It is be hinged；The brush roll（3）Number for four and be respectively arranged in first transverse arm（1）Both ends and
Second transverse arm（5）Both ends；The sprocket wheel（6）Number for four and be respectively arranged in the brush roll（3）Turn
On axle, the chain（7）With four sprocket wheels（6）Formed and coordinated, the rotating driving device（17）Rotating shaft and wherein one
The rotating shaft connection of the individual brush roll；The rotating driving device（17）With the regulation hydraulic cylinder（5）Respectively with it is described vehicle-mounted
Controller electrically connects.
A kind of 3. adjustable Cleaning vehicle for guardrail according to claim 1 or 2, it is characterised in that：The cleaning device
Also include protective cover, the number of the protective cover is four and is respectively arranged in first transverse arm（1）Both ends on the outside of and
Second transverse arm（2）Both ends on the outside of.
A kind of 4. adjustable Cleaning vehicle for guardrail according to claim 3, it is characterised in that：The protective cover is circular arc,
Its arc length is no more than the half of its corresponding circumference.
A kind of 5. adjustable Cleaning vehicle for guardrail according to claim 3, it is characterised in that：The protective cover is transparent protection
Cover.
A kind of 6. adjustable Cleaning vehicle for guardrail according to claim 1 or 2, it is characterised in that：First transverse arm（1）With
Second transverse arm（2）Bottom be additionally provided with spray thrower, the compartment（9）On be provided with water tank（15）；The spray thrower with
The water tank（15）Water route connection is formed, the spray thrower electrically connects with the Vehicle Controller.
A kind of 7. adjustable Cleaning vehicle for guardrail according to claim 1 or 2, it is characterised in that：The spray thrower includes opening
Close valve, shower, nozzle（8）With motor pump assembly；The shower is respectively arranged at first transverse arm（1）With described second
Transverse arm（2）Bottom, the nozzle（8）It is mounted equidistant on the shower；The water inlet of the motor pump assembly passes through institute
State switch valve and connect the water tank（15）Delivery port, its delivery port connects the shower；The switch valve and the motor
Pump assembly electrically connects with the Vehicle Controller respectively.
A kind of 8. adjustable Cleaning vehicle for guardrail according to claim 6, it is characterised in that：The shower nozzle（7.4）For high pressure
Shower nozzle.
A kind of 9. adjustable Cleaning vehicle for guardrail according to claim 1 or 2, it is characterised in that：The rotating seat（14）Bag
Include base, rotating disk, gear ring, gear and electric rotating machine；The floor installation is in the compartment（9）On, the rotating disk rotational installation
In on the base, the gear ring is coaxially installed on the rotating disk, and the electric rotating machine is installed on the compartment（9）On, institute
Gear is stated to be installed in the rotating shaft of the electric rotating machine and be meshed with the gear ring；The electric rotating machine and the vehicle-mounted control
Device electrically connects.
A kind of 10. adjustable Cleaning vehicle for guardrail according to claim 1 or 2, it is characterised in that：The telescopic arm（12）Tool
There are at least two joint arms being mutually slidably set with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711134093.7A CN107653818A (en) | 2017-11-16 | 2017-11-16 | A kind of adjustable Cleaning vehicle for guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711134093.7A CN107653818A (en) | 2017-11-16 | 2017-11-16 | A kind of adjustable Cleaning vehicle for guardrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107653818A true CN107653818A (en) | 2018-02-02 |
Family
ID=61120298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711134093.7A Withdrawn CN107653818A (en) | 2017-11-16 | 2017-11-16 | A kind of adjustable Cleaning vehicle for guardrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107653818A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343012A (en) * | 2018-04-28 | 2018-07-31 | 盐城工学院 | Guardrail cleaning device and guardrail cleaner |
| CN108374374A (en) * | 2018-03-01 | 2018-08-07 | 袁超 | A kind of sliceable more composite module guardrail system for washing intelligently |
| CN108517823A (en) * | 2018-04-14 | 2018-09-11 | 张安耀 | Town road guardrail chemical cleaning project structure and its construction method |
| CN113058904A (en) * | 2021-04-23 | 2021-07-02 | 广西北投交通养护科技集团有限公司 | Automatic change awl bucket cleaning equipment and awl bucket and wash car |
| CN117988307A (en) * | 2024-04-03 | 2024-05-07 | 唐山用九机械制造有限公司 | Trash rack cleaning device for water conservancy projects |
-
2017
- 2017-11-16 CN CN201711134093.7A patent/CN107653818A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374374A (en) * | 2018-03-01 | 2018-08-07 | 袁超 | A kind of sliceable more composite module guardrail system for washing intelligently |
| CN108374374B (en) * | 2018-03-01 | 2019-11-15 | 泉州台商投资区中达工业设计有限公司 | A kind of sliceable more composite module guardrail system for washing intelligently |
| CN108517823A (en) * | 2018-04-14 | 2018-09-11 | 张安耀 | Town road guardrail chemical cleaning project structure and its construction method |
| CN108343012A (en) * | 2018-04-28 | 2018-07-31 | 盐城工学院 | Guardrail cleaning device and guardrail cleaner |
| CN113058904A (en) * | 2021-04-23 | 2021-07-02 | 广西北投交通养护科技集团有限公司 | Automatic change awl bucket cleaning equipment and awl bucket and wash car |
| CN117988307A (en) * | 2024-04-03 | 2024-05-07 | 唐山用九机械制造有限公司 | Trash rack cleaning device for water conservancy projects |
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180202 |