CN109208512B - Municipal Bridge guardrail cleaning device and its application method - Google Patents
Municipal Bridge guardrail cleaning device and its application method Download PDFInfo
- Publication number
- CN109208512B CN109208512B CN201811085452.9A CN201811085452A CN109208512B CN 109208512 B CN109208512 B CN 109208512B CN 201811085452 A CN201811085452 A CN 201811085452A CN 109208512 B CN109208512 B CN 109208512B
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- China
- Prior art keywords
- guardrail
- branch pipe
- cleaning device
- water
- cross bar
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Classifications
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- 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
-
- 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
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
Abstract
The invention discloses a kind of municipal Bridge guardrail cleaning device and its application methods, cleaning device includes water tank, pipeline, and water pump, control valve on pipeline are set, the main waterway of control valve control piper, a spray unit is arranged to provide the water of water tank to pipeline, in the end of pipeline in water pump, and spray unit can be moved along horizontal guardrail and vertical guardrail, and it is fixed in position, while to the horizontal guardrail and vertical guardrail of spray unit surrounding；The spray unit includes a pair of of cross bar and a pair of of vertical pole, is provided with telescoping mechanism and pipe connectors in the region that cross bar and vertical pole surround, wherein pipe connectors and piping connection, and supply water to spray head.The present invention provides a kind of municipal Bridge guardrail cleaning device and its application method, apparatus of the present invention respectively correspond a telescoping mechanism using cross bar and vertical pole as frame, and cross bar and vertical pole opposite can adjust position, expand area defined, the range that spray head is sprayed changes.
Description
Technical field
The present invention relates to guardrail cleaning technique field, specific field is a kind of municipal Bridge guardrail cleaning device and its use
Method.
Background technique
The guardrail of municipal bridge often has certain performance attractive in appearance.Moreover, this guardrail is likely to be at urban district and pedestrian
Numerous occasions, therefore its clean level can influence the service performance and performance attractive in appearance of guardrail.And guardrail is in outdoor ring
It is easy to be influenced by condition of road surface and vehicle fugitive dust in border, the cleaning of guardrail is generally required to expend a large amount of manpowers
Material resources.
Since guard bar device in the prior art is generally located on bridge two sides, in the process of cleaning, cleaning device is mobile
It is more difficult, also, mobile space is limited.
Chinese patent Authorization Notice No. CN104818680 discloses a kind of cleaning device of municipal Bridge guardrail, for pair
Municipal Bridge guardrail is cleaned, and the cleaning device includes: catchment box assembly, cleaning sprayer and pressure supply unit,
In, the quantity of catchment box assembly and the cleaning sprayer be it is multiple, the box assembly that catchments passes through water-supply-pipe and institute
It states cleaning sprayer to connect one to one, the cleaning sprayer is installed on the spray head mounting rack for being exposed to ground.
Above-mentioned cleaning device cleans guardrail by single spray head movement, needs multi-pass operation, and operating
Cheng Zhong, it is inconvenient to carry, and cleaning effect is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of municipal Bridge guardrail cleaning device and its application methods, to solve above-mentioned back
The bad technical problem of the cleaning proposed in scape technology.
To achieve the above object, the present invention provides the following technical solutions, a kind of municipal administration Bridge guardrail cleaning device, municipal bridge
Beam guardrail includes spaced horizontal guardrail and vertical guardrail, also, horizontal guardrail and vertical guardrail are arranged in a crossed manner；
Cleaning device further includes water tank, pipeline, and the water pump, the control valve that are arranged on pipeline, control valve control piper
Main waterway, water pump the water of water tank to be provided to pipeline, pipeline end be arranged a spray unit, spray unit can edge
Horizontal guardrail and vertical guardrail are mobile, and are fixed in position, while to the horizontal guardrail of spray unit surrounding and vertically
Guardrail is cleaned；
The spray unit includes a pair of of cross bar and a pair of of vertical pole, is provided with telescopic machine in the region that cross bar and vertical pole surround
Structure and pipe connectors, wherein pipe connectors and piping connection, and supply water to spray head；
Respectively correspond a telescoping mechanism on the every cross bar and vertical pole, telescoping mechanism be made of water pipe it is changeable
The pipeline of length, one end are spray head, and the other end is pipe connectors, and ejected wash water is injected from pipe connectors, and is sprayed from spray head
Out；
The telescoping mechanism includes the first branch pipe being connected to pipe connectors, and the first support is arranged on the first branch pipe,
The second support is set in the end of the first branch pipe, wherein the first support can move back and forth on the first branch pipe；The telescopic machine
Structure further includes the second branch pipe connecting with cross bar or vertical pole, and the end of the second branch pipe is connect with spray head, and the second branch pipe is one flexible
Pipe, is provided with an adjustable spring in the second branch pipe；
Second branch pipe includes outer tube and inner tube, and the two can relatively move, and the bottom end of adjustable spring is arranged in outer tube
Bottom end, the other end is connected and fixed with inner tube bottom end.
Further, it is respectively provided with the first support on each first branch pipe, is arranged one between the first adjacent support
Curved rod, wherein four curved rod head and the tail connect in use state, form circular rings, draw from four direction to nozzle,
Chord length between the distance at two first support centers and two endpoints of each curved rod is identical, and shape bar sequentially connects from beginning to end
It connects.
Further, row's adjusting hole is set on first branch pipe, so that the first support is at different adjusting holes
It is connected in the first branch pipe.
Further, several connecting holes are respectively set in the both ends of the curved rod, to first support and adjacent
Curved rod connection.
Further, slide is set in the junction of the cross bar and vertical pole, and is connected by slide, adjust the position of slide
It sets, slide moves in the horizontal direction along cross bar.
Further, the end of the vertical pole is connect with the slide respectively, and the connection of perforation is arranged on the slide
Slot, cross bar pass through the link slot and are connected to position appropriate, and a threaded hole is also set up on the upside of slide, and an adjusting screw passes through
The threaded hole, and in the bottom end of screw and beam contact.
Further, second support offers two blind holes up and down on opposite left and right side, and the end of blind hole is logical
It crosses in upper and lower side and offers the vertical holes of two blind holes of connection.
Further, magnet is arranged in the intermediate of the curved rod, connect with guardrail wires, or setting sticking block, to
It is pasted on wooden guardrail, or the lock of setting annular, is fixed with circular guardrail.
Further, a water sensor is respectively set at the spray head, respectively the water of the real time measure spray head, and passes
It transports in control panel, the first water sensor, the second water sensor, third water sensing is respectively set on three spray heads
Device, the control panel realize adjustment by the detection of the water amount information to three water sensors, and the control panel is under
State the first fiducial value P that mean operation formula determines the first water sensor, the second water sensor21:
In formula, P21Indicate the first fiducial value of the water value of the first water sensor, the second water sensor, r1Indicate the
The real-time sampling value of one water sensor, r2Indicate the real-time sampling value of the second water sensor；r3Indicate third water sensor
Real-time sampling value；T indicates mean square deviation operation, and I indicates integral operation.
The present invention also provides a kind of municipal Bridge guardrail cleaning method, processes are as follows:
The corresponding position of curved rod and guardrail is connected；The first support is adjusted in the position of the first branch pipe, so that first
Seat is connect in adjusting hole appropriate with the first branch pipe；The second support is adjusted in the position of the second branch pipe, is made by adjustable spring
The outer tube and inner tube of second branch pipe relatively move；The position of slide is adjusted, slide moves in the horizontal direction along cross bar；Pass through control
Water pump processed and opening solenoid valve make water through the first branch pipe and the second branch pipe, are discharged from spray head, and pass through water sensor
Testing result, the position of the first support of adjustment, the second support.
Compared with prior art the invention has the advantages that the present invention provide a kind of municipal Bridge guardrail cleaning device and
Its application method, apparatus of the present invention respectively correspond a telescoping mechanism, cross bar and vertical pole can be opposite using cross bar and vertical pole as frame
Position is adjusted, area defined is expanded, the range that spray head is sprayed changes.
In particular, respectively correspond a telescoping mechanism on every cross bar and vertical pole, telescoping mechanism is changing of being made of water pipe
The pipeline of elongated degree, the second branch pipe include outer tube and inner tube, and the two can relatively move, and the bottom end of adjustable spring is arranged in outer tube
Bottom end, the other end is connected and fixed with inner tube bottom end, when cross bar is displaced outwardly, adjustable spring elongation so that being connect with inner tube
Spray head be displaced outwardly, while expanding spraying range, reduce the mobile number of device, improve the adaptability of device.
Further, in order to enhance the protection to the first branch pipe, the first support is respectively provided on each first branch pipe, it is adjacent
The first support between a curved rod is set, wherein four curved rods head and the tail connect in use state, circular rings are formed, from four
Nozzle is drawn in a direction.Chord length between the distance AB at two the first support centers and two endpoints of each curved rod
BC is identical, and shape bar sequentially connects from beginning to end.It will be appreciated by persons skilled in the art that the setting of this kind of connection structure, not only tears open
Dress is convenient, and convenient for adjusting, and can apply active force to multiple directions.
Further, magnet is arranged in the intermediate of curved rod, connect with guardrail wires, or setting sticking block, to paste
On wooden guardrail, or the lock of setting annular, it is fixed with circular guardrail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the municipal Bridge guardrail cleaning device of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the spray unit of the municipal Bridge guardrail cleaning device of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the curved rod of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the first branch pipe of the embodiment of the present invention；
Fig. 5 is the curved rod and the first intuitive attachment structure schematic diagram of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the second support of the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings come describe invention preferred embodiment.It will be apparent to a skilled person that these
Embodiment is used only for explaining the technical principle of invention, not in the protection scope of limitation invention.
It should be noted that in the description of invention, the instructions such as term " on ", "lower", "left", "right", "inner", "outside"
The term of direction or positional relationship is direction based on the figure or positional relationship, this is intended merely to facilitate description, without
It is that indication or suggestion described device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as the limitation to invention.
In addition it is also necessary to explanation, in the description of invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in invention.
Refering to Figure 1, its structural schematic diagram for the municipal Bridge guardrail cleaning device of the embodiment of the present invention, municipal administration
Bridge guardrail includes spaced horizontal guardrail 71 and vertical guardrail 72, also, horizontal guardrail and vertical guardrail are arranged in a crossed manner.
In the present embodiment, cleaning device further includes water tank 75, pipeline, and the water pump 77, the control valve 76 that are arranged on pipeline, control
The main waterway of 76 control piper of valve, water pump 77 is to provide the water of water tank to pipeline, and in the end of pipeline, one sprinkling of setting is single
Member 1, in the present embodiment, spray unit 1 can be moved along horizontal guardrail and vertical guardrail, and be fixed in position, simultaneously
The horizontal guardrail and vertical guardrail of 1 surrounding of spray unit are cleaned.The edge of spray unit 1 is evenly arranged at least three
Spray head 11, sprays around respectively.
As shown in fig.2, it shows for the structure of the spray unit of the municipal Bridge guardrail cleaning device of the embodiment of the present invention
It is intended to, the spray unit 1 of the present embodiment includes a pair of of cross bar 51 and a pair of of vertical pole 53, is arranged in the region that cross bar and vertical pole surround
There are telescoping mechanism and pipe connectors 10, wherein pipe connectors 10 and piping connection, and supply water to spray head 11.This implementation
The cross bar and vertical pole of example opposite can adjust position, expand area defined, the range that spray head is sprayed changes.
With continued reference to shown in Fig. 2, cross bar and vertical pole opposite can adjust position, are arranged in the junction of cross bar and vertical pole and slide
Seat 52, and connected by slide, the position of slide 52 is adjusted, slide 52 moves in the horizontal direction along cross bar 51.In this implementation
In example, the end of vertical pole 53 is connect with a slide 52 respectively, and the link slot of perforation is arranged on the slide 52, and cross bar 51 passes through
The link slot is simultaneously connected to position appropriate, and a threaded hole is also set up on the upside of slide, and one, which adjusts screw 54, passes through the threaded hole,
And in bottom end and the beam contact for adjusting screw 54；Position of the slide on cross bar is adjusted by adjusting the adjusting screw 54
It sets.
With continued reference to shown in Fig. 2, a telescoping mechanism is respectively corresponded on every cross bar 51 and vertical pole 53, telescoping mechanism is served as reasons
The pipeline for the changeable length that water pipe is constituted, one end are spray head 11, and the other end is pipe connectors 10, and ejected wash water connects from water pipe
Interface injection, and sprayed from spray head 11.In the present embodiment, four telescoping mechanisms are set, and telescoping mechanism includes connecting with water pipe
First branch pipes 17 of 10 connection of mouth, are arranged the first support 22 on the first branch pipe 17, are arranged second in the end of the first branch pipe 17
Support 15, wherein the first support 22 can move back and forth on the first branch pipe 17；Telescoping mechanism further includes connecting with cross bar or vertical pole
The second branch pipe 14 connect, the end of the second branch pipe 14 are connect with spray head 11, and in the present embodiment, the second branch pipe 14 is one flexible
Pipe, is provided with an adjustable spring 13 in the second branch pipe 14.Wherein, the second branch pipe includes outer tube and inner tube, and the two can be opposite
Mobile, the bottom end of outer tube is arranged in the bottom end of adjustable spring 13, and the other end is connected and fixed with inner tube bottom end, is displaced outwardly in cross bar
When, adjustable spring 13 extends, so that the spray head 11 connecting with inner tube is displaced outwardly, while expanding spraying range.
Specifically, the second support 15 offers two blind holes up and down on opposite left and right side, the end of blind hole passes through
The vertical holes of two blind holes of connection is offered in upper and lower side, as shown in fig.6, stopple is arranged in the upper side in vertical holes.It is logical
The second support 15 is crossed to be connected to two branch pipes.
With continued reference to shown in Fig. 2, in order to enhance the protection to the first branch pipe 17, first is respectively provided on each first branch pipe
A curved rod 21 is arranged between the first adjacent support 22 in support 22, wherein and four curved rods head and the tail connect in use state,
Circular rings are formed, nozzle is drawn from four direction.The distance AB at two 17 centers of the first support and each curved rod 21
Two endpoints between chord length BC it is identical, shape bar sequentially connects from beginning to end.It will be appreciated by persons skilled in the art that this kind of company
The setting of binding structure, it is not only convenient for disassembly and assembly, and convenient for adjusting, active force can be applied to multiple directions.
Specifically, as shown in connection with fig. 4, in order to adjust the first support 22 in the position of the first branch pipe 17, in the first branch pipe
One row's adjusting hole 18 is set on 17, so that the first support 22 is in the connection of the first branch pipe 17 in different adjusting holes, in conjunction with Fig. 5 institute
Show, two adjacent curved rods are connected in the two sides of the first support respectively.
As shown in fig.3, its structural schematic diagram for the curved rod of the present embodiment；If the both ends of curved rod 21 are respectively set
Dry connecting hole 24, to be connect with the first support and adjacent curved rod.In order to enable curved rod can connect with corresponding guardrail
It connects, in the present embodiment, magnet 211 is arranged in the intermediate of curved rod 21, it is connect with guardrail wires, or setting sticking block, to
It is pasted on wooden guardrail, or the lock of setting annular, is fixed with circular guardrail.
Water quantity holding in order to guarantee each spray head is relatively uniform, and water sensing is respectively set in the present embodiment at spray head
Device, the water of difference the real time measure spray head, and be transmitted in control panel, the first water sensor is respectively set on three spray heads
91, the second water sensor 92, third water sensor 93, the control panel passes through the water amount information to three water sensors
Detection come realize adjustment, the control panel according to following mean operation formula determine the first water sensor, the second water pass
First fiducial value P of sensor21:
In formula, P21Indicate the first fiducial value of the water value of the first water sensor, the second water sensor, r1Indicate the
The real-time sampling value of one water sensor, r2Indicate the real-time sampling value of the second water sensor；r3Indicate third water sensor
Real-time sampling value；T indicates mean square deviation operation, and I indicates integral operation.
Wherein I indicates any integral operation based on quadratic function, and above-mentioned formula is the ratio information for obtaining integral, following
Two formula are identical, are such as based on function y=ax2, it is in (a, b) in x value, a < b is any number.
The rudimentary algorithm of above-mentioned mean operation are as follows: by obtaining the water value of all sampled points within a certain period of time,
Integral operation and mean square deviation operation are carried out to each value in some period, ratio is then taken, show that is compared is averaged
Value.
The control panel determines the second fiducial value of the first water sensor, third water sensor according to the following equation
P31:
In formula, P31Indicate the second fiducial value of the water value of the first water sensor, third water sensor, r1Indicate the
The real-time sampling value of one water sensor, r2Indicate the real-time sampling value of the second water sensor；r3Indicate third water sensor
Real-time sampling value；T indicates mean square deviation operation, and I indicates integral operation.
The control panel determines the third fiducial value of the second water sensor, third water sensor according to the following equation
P23:
In formula, P23Indicate the third fiducial value of the second water sensor, third water sensor, r1Indicate that the first water passes
The real-time sampling value of sensor, r2Indicate the real-time sampling value of the second water sensor；r3Indicate adopting in real time for third water sensor
Sample value；T indicates mean square deviation operation, and I indicates integral operation.
The P obtained by aforesaid way21、P31、P23, the difference comparsion of three fiducial values is obtained, determines whether to be more than storage
In the threshold value P of control panel, if having a difference is more than threshold value P, the position and second of the first support and the second support is adjusted
The stroke of branch pipe, so that water route conveying length is in controlled range appropriate.
The use process of the municipal Bridge guardrail cleaning device of the embodiment of the present invention are as follows:
The corresponding position of curved rod and guardrail is connected；
The first support is adjusted in the position of the first branch pipe, so that the first support connects in adjusting hole appropriate and the first branch pipe
It connects；
The second support is adjusted in the position of the second branch pipe, makes the outer tube of the second branch pipe and inner tube opposite by adjustable spring
It is mobile；
The position of slide is adjusted, slide moves in the horizontal direction along cross bar；
Make water through the first branch pipe and the second branch pipe by control water pump and opening solenoid valve, is discharged from spray head, and lead to
The testing result of water amount sensor, the position of the first support of adjustment, the second support.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of municipal administration Bridge guardrail cleaning device, which is characterized in that municipal Bridge guardrail includes spaced horizontal guardrail
With vertical guardrail, also, horizontal guardrail and vertical guardrail are arranged in a crossed manner；
Cleaning device further includes water tank, pipeline, and the water pump, the control valve that are arranged on pipeline, the master of control valve control piper
A spray unit is arranged to provide the water of water tank to pipeline, in the end of pipeline in water route, water pump, and spray unit can be along level
Guardrail and vertical guardrail are mobile, and are fixed in position, while to the horizontal guardrail and vertical guardrail of spray unit surrounding
Carry out hydro-peening；
The spray unit includes a pair of of cross bar and a pair of of vertical pole, be provided in the region that cross bar and vertical pole surround telescoping mechanism with
And pipe connectors, wherein pipe connectors and piping connection, and supply water to spray head；
A telescoping mechanism is respectively corresponded on the every cross bar and vertical pole, telescoping mechanism is the changeable length being made of water pipe
Pipeline, one end is spray head, and the other end is pipe connectors, and ejected wash water is injected from pipe connectors, and is sprayed from spray head；
The telescoping mechanism includes the first branch pipe being connected to pipe connectors, and the first support is arranged on the first branch pipe,
The second support is arranged in the end of one branch pipe, wherein the first support can move back and forth on the first branch pipe；The telescoping mechanism is also
Including the second branch pipe connecting with cross bar or vertical pole, the end of the second branch pipe is connect with spray head, and the second branch pipe is a telescoping tube,
An adjustable spring is provided in second branch pipe；
Second branch pipe includes outer tube and inner tube, and the two can relatively move, and the bottom of outer tube is arranged in the bottom end of adjustable spring
End, the other end are connected and fixed with inner tube bottom end；
It is respectively provided with the first support on each first branch pipe, a curved rod is set between the first adjacent support, wherein make
It is connected with four curved rod head and the tail in state, forms circular rings, nozzle is drawn from four direction, two described first
The distance at seat center is identical as the chord length between two endpoints of each curved rod, and curved rod sequentially connects from beginning to end.
2. municipal administration Bridge guardrail cleaning device according to claim 1, which is characterized in that be arranged on first branch pipe
One row's adjusting hole, so that the first support is connect at different adjusting holes with the first branch pipe.
3. municipal administration Bridge guardrail cleaning device according to claim 2, which is characterized in that distinguish at the both ends of the curved rod
Several connecting holes are set, to connect with first support and adjacent curved rod.
4. municipal administration Bridge guardrail cleaning device according to claim 1, which is characterized in that in the company of the cross bar and vertical pole
Place's setting slide is connect, and is connected by slide, adjusts the position of slide, slide moves in the horizontal direction along cross bar.
5. municipal administration Bridge guardrail cleaning device according to claim 4, which is characterized in that the end of the vertical pole respectively with
The slide connects, and the link slot of perforation is arranged on the slide, and cross bar passes through the link slot and is connected to position appropriate,
A threaded hole is also set up on the upside of slide, one, which adjusts screw, passes through the threaded hole, and in the bottom end of screw and beam contact.
6. municipal administration Bridge guardrail cleaning device according to claim 1, which is characterized in that second support is relatively left
Two blind holes up and down are offered on right side, the end of blind hole is by offering the vertical of two blind holes of connection in upper and lower side
Hole.
7. municipal administration Bridge guardrail cleaning device according to claim 1, which is characterized in that the intermediate setting of the curved rod
Magnet is connect with guardrail wires, or setting sticking block, being pasted on wooden guardrail, or the lock of setting annular, with
Circular guardrail is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085452.9A CN109208512B (en) | 2018-09-18 | 2018-09-18 | Municipal Bridge guardrail cleaning device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811085452.9A CN109208512B (en) | 2018-09-18 | 2018-09-18 | Municipal Bridge guardrail cleaning device and its application method |
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| Publication Number | Publication Date |
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| CN109208512A CN109208512A (en) | 2019-01-15 |
| CN109208512B true CN109208512B (en) | 2019-05-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4320391B2 (en) * | 2000-03-30 | 2009-08-26 | 東日本旅客鉄道株式会社 | Bifurcation instantaneous snow removal device |
| CN104818680B (en) * | 2015-03-25 | 2018-05-01 | 河南德冠园林绿化工程有限公司 | The cleaning device and its application method of municipal Bridge guardrail |
| CN107278826A (en) * | 2017-07-10 | 2017-10-24 | 许昌农科种业有限公司 | A kind of agricultural machinery irrigation rig |
| CN107810837A (en) * | 2017-12-07 | 2018-03-20 | 泰顺中普科技服务有限公司 | A kind of afforestation rainer |
| CN207803030U (en) * | 2017-12-15 | 2018-09-04 | 江西省青苹园林艺术有限公司 | A kind of automatic watering device for Landscape |
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Effective date of registration: 20190203 Address after: 215431 No. 38 Liuzhou Road, Loudong Street, Taicang City, Suzhou City, Jiangsu Province Applicant after: Zhu Qingcuan Address before: 363000 Mingfa Plaza, Longwen District, Zhangzhou City, Fujian Province Applicant before: Fujian Qunda Engineering Construction Co., Ltd. |
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