CN208469761U - Fully-automatic vehicle cleaning system based on PLC control - Google Patents
Fully-automatic vehicle cleaning system based on PLC control Download PDFInfo
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- CN208469761U CN208469761U CN201820749379.XU CN201820749379U CN208469761U CN 208469761 U CN208469761 U CN 208469761U CN 201820749379 U CN201820749379 U CN 201820749379U CN 208469761 U CN208469761 U CN 208469761U
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- flushing tank
- water
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- tank
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Abstract
The utility model discloses a kind of fully-automatic vehicle cleaning systems based on PLC control, the fermentation vat and flushing tank of strip running lanes are formed including joining end to end, fermentation vat, traveling supporting layer is equipped in flushing tank, fermentation vat, gutter is equipped in flushing tank, gutter is connected by the water inlet of drainpipe and sedimentation basin, the water outlet of sedimentation basin is connected by the water inlet of pipeline and water tank, the two sides interval of flushing tank is equipped with several infrared induction detectors, several spray heads of the two sides interval installation of flushing tank pass through solenoid valve, the connection of the water outlet of feed pipe and water tank, infrared induction detector, solenoid valve, sedimentation basin is connect with PLC controller.The utility model realizes the automatic cleaning to vehicle, and cleaning is sufficiently thorough, and work efficiency is high, and water for cleaning recycles, and has saved water resource.
Description
Technical field
The utility model relates to a kind of fully-automatic vehicle cleaning systems based on PLC control, belong to building yard cleaning vehicle
Wash technical field.
Background technique
The construction site in construction site is related to cubic metre of earth and stone outward transport engineering, meeting or more when usual earthwork vehicle is driven out to from construction site
Or soil is dropped less, this causes no small pollution to urban environment, town road etc..Therefore field is driven out in earthwork vehicle at present
It all first passes through cleaning system before ground to clean the positions such as tire, the side wall of vehicle, to reduce dirt of cubic metre of earth vehicle to environment
Dye.Building site is all that the cleaning of vehicle is carried out by car washer by the way of artificial mostly at present.But this carwash mode
Have the following disadvantages: first, in vehicle in and out port, worker by car washer vehicle is rinsed in the way of exist because it is artificial because
Not the problems such as element not can guarantee vehicle and sufficiently rinse, and rinse water is unable to control；Second, manual type there are working efficiencies low, labor
The problems such as momentum is big, at high cost, and congestion is easily caused when vehicle is intensive；Third carries out comprehensively vehicle although car washer meets
The requirement of flushing, but it cannot achieve and recycles water resource, causes the waste of great lot of water resources, increases cost.
Utility model content
The purpose of this utility model is to provide a kind of fully-automatic vehicle cleaning systems based on PLC control, realize
Automatic cleaning to vehicle, cleaning is sufficiently thorough, and work efficiency is high, and water for cleaning recycles, and has saved water resource.
To achieve the goals above, the utility model uses following technical scheme:
A kind of fully-automatic vehicle cleaning system based on PLC control, it is characterised in that: it includes joining end to end to form strip
The fermentation vat and flushing tank of shape running lanes are equipped with traveling supporting layer in fermentation vat, flushing tank, set in fermentation vat, flushing tank
There is gutter, gutter is connected by the water inlet of drainpipe and sedimentation basin, and the water outlet of sedimentation basin passes through pipeline and water tank
Water inlet connection, the two sides interval of flushing tank is equipped with several infrared induction detectors, the two sides interval installation of flushing tank
Several spray heads are connected by the water outlet of solenoid valve, feed pipe and water tank, infrared induction detector, solenoid valve, sedimentation basin with
PLC controller connection.
The utility model has the advantages that:
The utility model devises immersion and rinses two wash phases, and rinse stage can automatic sensing vehicle driving position
It sets to open flushing operation, the automatic cleaning to vehicle, especially earthwork vehicle is realized, and cleaning is sufficiently thorough, without artificial
Control, worker's amount of labour is small, and work efficiency is high, in addition, the water that cleaning uses can be realized and recycle, has reached saving money
Source, the effect for reducing cost.
Detailed description of the invention
Fig. 1 is the composition schematic diagram of the utility model.
Fig. 2 is the A-A of Fig. 1 to cutaway enlargement diagram.
Fig. 3 is the C-C of Fig. 1 to cutaway enlargement diagram.
Fig. 4 is the B-B direction cutaway enlargement diagram of Fig. 1.
Fig. 5 is the enlarged diagram of the part D of Fig. 2.
Fig. 6 is to travel the geometries shrink schematic diagram (deceleration reinforcing bar is not shown) of supporting layer as viewed from Fig. 5 vertical view.
Fig. 7 is an example structure schematic diagram of drainage double-edged fine-toothed comb.
Fig. 8 is another example structure schematic diagram of drainage double-edged fine-toothed comb.
Specific embodiment
As shown in Figures 1 to 8, the utility model includes joining end to end based on the fully-automatic vehicle cleaning system that PLC is controlled
The fermentation vat 10 and flushing tank 20 of strip running lanes are formed, traveling supporting layer 50 is equipped in fermentation vat 10, flushing tank 20,
Gutter 60 is equipped in fermentation vat 10, flushing tank 20, gutter 60 is connect by drainpipe 200 with the water inlet of sedimentation basin 30,
The water outlet of sedimentation basin 30 is connect by pipeline with the water inlet of water tank 40, if the two sides interval of flushing tank 20 is equipped with extra dry red wine
Several spray heads 72 (high-pressure nozzle) of outer inductive probe 71, the two sides interval installation of flushing tank 20 pass through solenoid valve 73, water supply
Pipe 300 is connect with the water outlet of water tank 40, infrared induction detector 71, solenoid valve 73, sedimentation basin 30 signal port and PLC
The corresponding signal port of controller 100 (programmable logic controller (PLC)) connects.
In actual implementation, PLC controller 100 can also connect with higher controller and be controlled by higher controller, higher level
Controller may include single-chip microcontroller.
Such as Fig. 2 to Fig. 3, fermentation vat 10, flushing tank 20 are the groove structure formed on ground structure 90, in which: along row
The length direction in channel is sailed, i.e., from the point of view of doing vertical profile along driving direction shown in Fig. 1, the longitudinal section of fermentation vat 10 is in inverted trapezoidal, that is, is pushed up
The small trapezoidal shape of outsole；The bottom of pond of fermentation vat 10, the bottom of pond of flushing tank 20 gutter 60 along running lanes length direction
The top opening of setting, gutter 60 is equipped with double-edged fine-toothed comb 61；Bottom of pond, the bottom of pond of flushing tank 20 of fermentation vat 10 are laid in 60 two sides of gutter
There is traveling supporting layer 50；Traveling 50 top surface of supporting layer in flushing tank 20 and the ground structure 90 at 20 entrance and exit of flushing tank
Top surface flush, traveling 50 top surface of supporting layer in fermentation vat 10 are lower than 90 top surface of ground structure of 20 inlet of flushing tank, leaching
Steeping the outlet of pond 10 is 20 entrance of flushing tank, i.e. fermentation vat 10 is connected directly with flushing tank 20.
Such as Fig. 4, ground structure 90 includes basis 91, and basis 91 is equipped with mountain flour layer 92 above, and mountain flour layer 92 is equipped with mixed above
Solidifying soil layer 93, concrete layer 93 are equipped with waterproof mortar course (not shown) above.In the present invention, basic 91, mountain flour
Layer 92, concrete layer 93, waterproof mortar course are technology known in the art, therefore are not described in detail herein, in addition, ground is tied
Structure 90 can also be other compositions, without limitations.
Such as Fig. 5 and Fig. 6, traveling supporting layer 50 includes that the several groups of the length direction parallel interval setting along running lanes are pre-
Embedded part, every group of built-in fitting include spaced several built-in fittings 51 on the direction perpendicular to running lanes length direction, often
It is welded with the open support channel steel 52 being arranged downward on group built-in fitting, is welded with spacer bar 53, phase on each support channel steel 52
Drainage double-edged fine-toothed comb 54 is welded between adjacent two spacer bars 53, drainage double-edged fine-toothed comb 54 is welded with deceleration reinforcing bar 55 above, supports channel steel
52, spacer bar 53, deceleration reinforcing bar 55 length direction perpendicular to running lanes length direction.
In the present invention, the effect of deceleration reinforcing bar 55 is to promote vehicle slow-down and generate in the process of moving
Vibration, to be conducive to clean sandy soil, the dust above it.
Such as Fig. 5, furthermore, it is understood that built-in fitting 51 includes rectangle (usually rectangular) steel plate 512, the bottom surface of steel plate 512 is welded
It is connected to hook type supporting leg 511, usual hook type supporting leg 511 is designed as two and hook type supporting leg 511 is made of screw-thread steel, hook type supporting leg
511 are embedded in concrete layer 93, and steel plate 512 is in waterproof mortar course and exposed.
Such as figure, drainage double-edged fine-toothed comb 54 includes rectangle steel framework 541, is welded with laterally and/or vertically several screw-thread steels in steel framework 541
Manufactured reinforcing bar 542.Fig. 7, Fig. 8 respectively illustrate two kinds of structures of drainage double-edged fine-toothed comb 54, are not limited thereto certainly.
Such as Fig. 1, in actual design, each spray head 72 connects a solenoid valve 73.Infrared induction detector 71, spray head 72 are equal
In 20 two sides mounted in pairs of flushing tank, and in each side of flushing tank 20, infrared induction detector 71 is staggered with spray head 72.
Such as Fig. 1, preferably, sedimentation basin 30 is three-level sedimentation basin, three-level sedimentation basin includes arranged side by side first to third
There are three mud chambers 31, the water inlet of first order mud chamber to connect with drainpipe 200 for grade mud chamber, i.e. tool, first order mud chamber
It is connected between the mud chamber of the second level, between second level mud chamber and third level mud chamber by openings 32, openings 32 are set
It is placed in position on the upper side, the water outlet of third level mud chamber is connect with the water inlet of water tank 40, precipitates indoor location in the third level
There is submersible sewage pump 33, the pipeline that submersible sewage pump 33 is connect with the water outlet of sedimentation basin 30 is connected.
In the present invention, sedimentation basin 30 is the junction of draining with water supply, and the water in flushing tank 20 flow to preceding two-stage
After in mud chamber, part water flow to third level mud chamber by precipitating to be used for water circulation.
Such as Fig. 1, water tank 40 includes water tank 41, is equipped with mechanical float ball switch 42 in water tank 41, mechanical float ball is opened
42 are closed to connect with municipal water pipe 43.In the present invention, water tank 40 is technology known in the art, can also be other knots
Configuration formula, it is without limitations.
To ensure that spray head 72 works under constant high-pressure, preferably, being equipped with force (forcing) pump 301 and pressure on feed pipe 300
Power table 302, force (forcing) pump 301, the signal port of pressure gauge 302 are connect with the corresponding signal port of PLC controller 100.
In actual implementation, fermentation vat 10 is for first carrying out immersion type cleaning to vehicle, therefore it should maintain water for a long time
State, therefore shut-off valve 201 is installed on drainpipe 200, the signal port of shut-off valve 201 and the corresponding signal of PLC controller 100
Port connection is only opened in the seasonal shut-off valve 201 of cleaning fermentation vat 10, so that the water in fermentation vat 10 is discharged into sedimentation basin 30.
Also, when clearing up fermentation vat 10, because needing all to drain the water in it, therefore answered in the second level mud chamber of sedimentation basin 30
Submersible sewage pump 33 is installed, this submersible sewage pump 33 is manually controlled, only opened when clearing up fermentation vat 10.
Such as Fig. 1, fermentation vat 10, the entrance of flushing tank 20, exit are equipped with intercepting ditch 80, and the bottom of trench of intercepting ditch 80 is equipped with
Floor drain, floor drain is for the water in intercepting ditch 80 to be directed directly in gutter 60, the intercepting ditch 80 and fermentation vat 10 of fermentation vat 10
The gutter 60 of itself design is connected, and the intercepting ditch 80 of flushing tank 20 is connected with the gutter 60 that flushing tank 20 itself designs
It is logical.
In addition, preferably, the outlet of the entrance of fermentation vat 10, flushing tank 20 is equipped with banister (not shown), banister
Signal port connect with the corresponding signal port of PLC controller 100.
When cleaning, vehicle is driven into running lanes from 10 entrance of fermentation vat and is advanced along driving direction.When vehicle drives into leaching
After steeping in pond 10, under the concussion effect generated in impregnating and travelling by the water 400 in pond by deceleration reinforcing bar 55, to vehicle
Implement preliminary cleaning.Herein in preliminary cleaning process, the sky between the two neighboring support channel steel 52 in supporting layer 50 is travelled
Gap is communicated with gutter 60, and water is flowed in-between but do not outflowed, and the water in intercepting ditch 80 can also be led back draining by cut-off
In ditch 60.
Then vehicle drives into flushing tank 20, reaches thorough cleaning by the strength cleaning of flushing tank 20, specifically:
After vehicle drives into flushing tank 20, in 20 two sides of flushing tank, the infrared induction detector that vehicle drives into is detected
71 detect signal in place to the feedback of PLC controller 100, then the connected electromagnetism of the spray head 72 near this infrared induction detector 71
Valve 73 is controlled by PLC controller 100 and is opened, so that spray head 72 is rinsed to lower vehicle water spray.On the contrary, when vehicle leaves
Certain 71 position of infrared induction detector, in the presence of this infrared induction detector 71 can't detect vehicle, to PLC controller
100 feedbacks can't detect signal, and then solenoid valve 73 is controlled by PLC controller 100 and closed, and spray head 72 stops water spray.In other words
Say, from 20 entrance of flushing tank to outlet setting spray head 72 sequentially opens come to lower vehicle (such as wheel, vehicle side wall) implementation it is thorough
Bottom is rinsed.In this cleaning process, ejected wash water flows into two neighboring support channel steel by the drainage double-edged fine-toothed comb 54 of traveling supporting layer 50
It in gap between 52, then flows into gutter 60, is precipitated to be flowed into sedimentation basin 30 by drainpipe 200, sunk
The water that can be utilized again obtained behind shallow lake flows into water tank 40 under the driving of submersible sewage pump 33, so that water tank 40 is by water by giving
Water pipe 300 is conveyed to spray head 72 again.In addition, the concussion effect that the deceleration reinforcing bar 55 in flushing tank 20 generates, which can produce, makes vehicle
The purpose that sandy soil, dust on etc. are fallen is advantageously implemented the cleaning down to vehicle.
When the water level in water tank 40 is lower than setting water level, mechanical float ball switch 42 is opened, and municipal water sources pass through city
The make-up water into the water tank 41 of water tank 40 of political affairs water pipe 43.
In practical operation, when detecting that hydraulic pressure is too low in feed pipe 300 via pressure gauge 302, PLC controller 100
It controls force (forcing) pump 301 to start, automatic compensation, after hydraulic pressure is normal in feed pipe 300, stops ftercompction, so that water in feed pipe 300
Pressure is long-term to be kept in the reasonable scope, guaranteeing that spray head 72 works within the scope of constant pressure.
In addition, in the process of cleaning, the banister that flushing tank 20 exports is not turned on, it is in raised condition, vehicle can not be driven out to,
To ensure the available prolonged sufficiently cleaning of vehicle to a certain extent.
The utility model has the advantages that:
1, the utility model is controlled by PLC controller, realizes the automatic control of carwash overall process, and whole process is not necessarily to
Manual operation, vehicle does not rinse or rinses insufficient situation and occurs caused by avoiding because of artificial carelessness.
2, water source used in vehicle rinsing is preferably minimized by the utility model by whole water circulation, solves conventional carwash
The drawbacks of disposable water utilization of machine generates, greatly reduces the waste to water resource.
3, the utility model fully-automatic vehicle cleaning system can be accomplished sufficiently to clean to vehicle, in addition, it is in exit design
Liftable banister guarantees that the Vehicle car wash time is greater than setting time (such as 60 seconds), further ensures the thorough clear of vehicle
Wash clean.
The above is the utility model preferred embodiment and its technical principle used, for those skilled in the art
It is any based on technical solutions of the utility model basis without departing substantially from the spirit and scope of the utility model for member
On equivalent transformation, simple replacement etc. it is obvious change, belong within scope of protection of the utility model.
Claims (10)
1. a kind of fully-automatic vehicle cleaning system based on PLC control, it is characterised in that: it includes joining end to end to form strip
The fermentation vat and flushing tank of running lanes are equipped with traveling supporting layer in fermentation vat, flushing tank, are equipped in fermentation vat, flushing tank
Gutter, gutter are connected by the water inlet of drainpipe and sedimentation basin, and the water outlet of sedimentation basin passes through pipeline and water tank
Water inlet connection, the two sides interval of flushing tank are equipped with several infrared induction detectors, if what the two sides interval of flushing tank was installed
Dry spray head is connected by the water outlet of solenoid valve, feed pipe and water tank, infrared induction detector, solenoid valve, sedimentation basin and PLC
Controller connection.
2. the fully-automatic vehicle cleaning system as described in claim 1 based on PLC control, it is characterised in that:
The fermentation vat, the flushing tank are the groove structure formed on ground structure, in which: along the length of the running lanes
Direction is spent, the longitudinal section of the fermentation vat is in inverted trapezoidal；The draining of the bottom of pond of the fermentation vat, the bottom of pond of the flushing tank
The length direction of running lanes described in bank is arranged；The bottom of pond of the fermentation vat, the bottom of pond of the flushing tank are in the gutter
Two sides are equipped with the traveling supporting layer；Traveling supporting layer top surface in the flushing tank and the flushing tank entrance and out
The ground structure top surface flush at mouthful place, the traveling supporting layer top surface in the fermentation vat is lower than the flushing tank inlet
Ground structure top surface, fermentation vat outlet is the flushing tank entrance.
3. the fully-automatic vehicle cleaning system as claimed in claim 2 based on PLC control, it is characterised in that:
The ground structure includes basis, and basis is equipped with mountain flour layer above, is equipped with concrete layer above mountain flour layer, on concrete layer
Face is equipped with waterproof mortar course.
4. the fully-automatic vehicle cleaning system as claimed in claim 3 based on PLC control, it is characterised in that:
It is described traveling supporting layer include along the running lanes length direction parallel interval be arranged several groups built-in fitting, every group
Built-in fitting includes spaced several built-in fittings, every group of built-in fitting on the direction perpendicular to the running lanes length direction
On be welded with the open support channel steel being arranged downward, be welded with spacer bar, two neighboring spacer bar on each support channel steel
Between be welded with drainage double-edged fine-toothed comb, deceleration reinforcing bar is welded with above drainage double-edged fine-toothed comb.
5. the fully-automatic vehicle cleaning system as claimed in claim 4 based on PLC control, it is characterised in that:
The built-in fitting includes rectangular steel plates, and the bottom surface of steel plate is welded with hook type supporting leg, and hook type supporting leg is embedded in the concrete
In layer, steel plate is in the waterproof mortar course and exposed；
The drainage double-edged fine-toothed comb includes rectangle steel framework, and several reinforcing bars are welded in steel framework.
6. the fully-automatic vehicle cleaning system as described in claim 1 based on PLC control, it is characterised in that:
Each spray head connects a solenoid valve；
The infrared induction detector, the spray head are in flushing tank two sides mounted in pairs, and in each side of the flushing tank,
The infrared induction detector is staggered with the spray head.
7. the fully-automatic vehicle cleaning system as described in claim 1 based on PLC control, it is characterised in that:
The sedimentation basin is three-level sedimentation basin, and three-level sedimentation basin includes arranged side by side first to third level mud chamber, the first order
The water inlet of mud chamber is connect with the drainpipe, between first order mud chamber and second level mud chamber, second level mud chamber with
It being connected between third level mud chamber by openings, the water outlet of third level mud chamber is connect with the water inlet of the water tank,
Submersible sewage pump is installed in third level mud chamber, the pipeline that submersible sewage pump is connect with the water outlet of the sedimentation basin is connected
It connects.
8. the fully-automatic vehicle cleaning system as described in claim 1 based on PLC control, it is characterised in that:
The water tank includes water tank, and mechanical float ball switch is equipped in water tank, and mechanical float ball switch connects with municipal water pipe
It connects.
9. the fully-automatic vehicle cleaning system as claimed in claim 8 based on PLC control, it is characterised in that:
Force (forcing) pump and pressure gauge are installed on the feed pipe.
10. the fully-automatic vehicle cleaning system as claimed in any one of claims 1-9 wherein based on PLC control, feature exist
In:
The fermentation vat, the entrance of the flushing tank, exit are equipped with intercepting ditch, and the bottom of trench of intercepting ditch is equipped with floor drain, described
The intercepting ditch of fermentation vat is connected with the gutter of the fermentation vat, the intercepting ditch of the flushing tank and the flushing tank
The gutter is connected；
The outlet of the entrance of the fermentation vat, the flushing tank is equipped with banister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749379.XU CN208469761U (en) | 2018-05-18 | 2018-05-18 | Fully-automatic vehicle cleaning system based on PLC control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820749379.XU CN208469761U (en) | 2018-05-18 | 2018-05-18 | Fully-automatic vehicle cleaning system based on PLC control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208469761U true CN208469761U (en) | 2019-02-05 |
Family
ID=65217830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820749379.XU Expired - Fee Related CN208469761U (en) | 2018-05-18 | 2018-05-18 | Fully-automatic vehicle cleaning system based on PLC control |
Country Status (1)
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| CN (1) | CN208469761U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056779A (en) * | 2019-05-20 | 2019-07-26 | 中铁建工集团有限公司 | The automatic cutting device of water flow |
| CN110254397A (en) * | 2019-07-01 | 2019-09-20 | 中铁建工集团有限公司 | A kind of vehicle rinsing combination unit |
| CN110509897A (en) * | 2019-07-15 | 2019-11-29 | 陕西龙门钢铁有限责任公司 | Steel plant's heavy construction vehicle Full-automatic non-contact cleaning device |
| CN110733472A (en) * | 2019-11-29 | 2020-01-31 | 深圳宏业基岩土科技股份有限公司 | Automatic car washing method for large-scale earth and stone engineering |
| CN110806711A (en) * | 2019-11-27 | 2020-02-18 | 福建航空装备维修中心 | Integrated management system and method for cleaning, airing and storing parachuting equipment of pilots on sea |
| CN114056295A (en) * | 2022-01-19 | 2022-02-18 | 淄博市交通建设发展中心 | Automatic washing control method for road traffic non-stop motor vehicle |
| CN114537336A (en) * | 2022-02-17 | 2022-05-27 | 河北钢铁集团矿业有限公司 | Automatic vehicle flushing system and method |
-
2018
- 2018-05-18 CN CN201820749379.XU patent/CN208469761U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056779A (en) * | 2019-05-20 | 2019-07-26 | 中铁建工集团有限公司 | The automatic cutting device of water flow |
| CN110254397A (en) * | 2019-07-01 | 2019-09-20 | 中铁建工集团有限公司 | A kind of vehicle rinsing combination unit |
| CN110509897A (en) * | 2019-07-15 | 2019-11-29 | 陕西龙门钢铁有限责任公司 | Steel plant's heavy construction vehicle Full-automatic non-contact cleaning device |
| CN110806711A (en) * | 2019-11-27 | 2020-02-18 | 福建航空装备维修中心 | Integrated management system and method for cleaning, airing and storing parachuting equipment of pilots on sea |
| CN110806711B (en) * | 2019-11-27 | 2022-06-03 | 福建航空装备维修中心 | Integrated management system and method for cleaning, airing and storing parachuting equipment of pilots on sea |
| CN110733472A (en) * | 2019-11-29 | 2020-01-31 | 深圳宏业基岩土科技股份有限公司 | Automatic car washing method for large-scale earth and stone engineering |
| CN110733472B (en) * | 2019-11-29 | 2021-05-11 | 深圳宏业基岩土科技股份有限公司 | Automatic car washing method for large-scale earth and stone engineering |
| CN114056295A (en) * | 2022-01-19 | 2022-02-18 | 淄博市交通建设发展中心 | Automatic washing control method for road traffic non-stop motor vehicle |
| CN114056295B (en) * | 2022-01-19 | 2022-04-08 | 淄博市交通建设发展中心 | Automatic washing control method for road traffic non-stop motor vehicle |
| CN114537336A (en) * | 2022-02-17 | 2022-05-27 | 河北钢铁集团矿业有限公司 | Automatic vehicle flushing system and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |