CN109867231A - A kind of quick delivery apparatus of new city road traffic accident - Google Patents
A kind of quick delivery apparatus of new city road traffic accident Download PDFInfo
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- CN109867231A CN109867231A CN201910229138.1A CN201910229138A CN109867231A CN 109867231 A CN109867231 A CN 109867231A CN 201910229138 A CN201910229138 A CN 201910229138A CN 109867231 A CN109867231 A CN 109867231A
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- 206010039203 Road traffic accident Diseases 0.000 title claims abstract description 36
- 238000011161 development Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000004088 simulation Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 8
- 239000010727 cylinder oil Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003012 network analysis Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The present invention provides a kind of quick delivery apparatus of new city road traffic accident, including guide rail, the carrying roller being arranged on guide rail, the column turned on slideway, hydraulic be arranged on column is arranged in the steering slideway that is arranged on carrying roller, and the carrying roller is matched with guide rail；It is additionally provided with lift arm, the column is internally provided with slideway, and the slideway is matched with lift arm.The applicability of invention is wide, it can implement to dredge work on various sections in city and bridge, the road conditions problem of solving road traffic in the case where sacrificing less cost of human resources, it has the characteristics that highly reliable, stability is high low with maintenance cost simultaneously, meets the development trend of traffic intelligence.
Description
Technical field
The present invention relates to a kind of quick delivery apparatus more particularly to a kind of new city road traffic accident quickly to dredge dress
It sets, belongs to intelligent transportation field.
Background technique
With the fast development of urban transportation, the traffic congestion as caused by traffic accident also at problem concerned by people,
For road network in big flow load running, traffic accident may cause the traffic paralysis in a wide range of at one.Automobile conduct
Conveniently traffic trip tool, spreading speed are getting faster one kind, and universal range is also covered by the whole world.But it is following
, it is increasingly increased traffic accident quantity.In general, once occurring, the accident vehicle scrapped can account for severe traffic accidents
With the road of big section, this will lead to later vehicle and gets congestion, the special road that especially image height is built bridge, bridge spanning the sea is this kind of
Section, traffic accident even can cause the heavy congestion up to more than ten hour.The traffic congestion meeting that traffic accident is caused
Serious to hinder scene of the accident processing and personnel's treatment, the congestion of later vehicle will also result in potential social resources waste.At present
The processing mode of traffic accident be typically all use traffic police dredge with trailer rescue, but both modes all can not quick response simultaneously
Alleviate road block situation.At present both at home and abroad on how to handle traffic accident quickly to prevent the research of traffic jam less,
It is most of also in the conceptual phase to traffic accident treatment process simplification.By taking domestic research as an example, there is domestic scholars proposition,
In order to accelerate the processing of traffic accident, prevents traffic jam, can be held using encouragement autonomous negotiating, simplified Claims Resolution process, optimization
The measures such as method program.But domestic and foreign scholars are only applicable to fender-bender to the research for simplifying process flow, for seriously handing over
Interpreter thus produce little effect, and only accelerate a part of process flow, can not first time quick response and processing.
Summary of the invention
The purpose of the present invention is to solve road traffic accident cannot obstructing problem brought by timely and effective processing and
A kind of quick delivery apparatus of new city road traffic accident is provided.
The object of the present invention is achieved like this:
A kind of quick delivery apparatus of new city road traffic accident, including guide rail, the carrying roller being arranged on guide rail, if
It sets the steering slideway on carrying roller, the column turned on slideway, hydraulic be arranged on column, the carrying roller is set
It is matched with guide rail；It is additionally provided with lift arm, the column is internally provided with slideway, and the slideway is matched with lift arm.
The invention also includes features some in this way:
1. the two sides that road is arranged in the guide rail；
2. being provided with supporting point in the lift arm；
3. the slideway that turns to includes the first steering slideway and the second steering slideway being flexibly connected with the first slideway.
Compared with prior art, the beneficial effects of the present invention are:
(1) telemanagement part of the invention can accomplish quick response, while driving and the scene of the accident are apart from nearest liter
Drop platform handles the scene of the accident, can alleviate traffic jam in most fast degree.
(2) applicability of the invention is wide, can implement to dredge work on various sections in city and bridge, sacrificial
The road conditions problem of solving road traffic in the case where the less cost of human resources of domestic animal, while it is with highly reliable, stability is high
The features such as low with maintenance cost, meets the development trend of traffic intelligence.
Detailed description of the invention
Fig. 1 is quick persuasion system flow chart；
Fig. 2 is quick delivery apparatus structural schematic diagram；
Fig. 3 is system hydraulic schematic diagram；
Fig. 4 is lifting speed regulation loop hydraulic schematic diagram；
Fig. 5 is jacking system control structure figure；
Fig. 6 is the lifting speed change speed-regulating system simulation model figure based on MATLAB/SIMULINK；
Fig. 7 is lifting speed-regulating system simulation result diagram.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing.
A kind of quick delivery apparatus of new city road traffic accident, including preventing road monitoring system, telecontrol management system, shifting
Dynamic system and lifting speed-regulating system；Preventing road monitoring system: the omnidirectional camera by road, traffic police department alarm system are located at by portion
System and patrol police's composition；By the uninterrupted monitoring to road, traffic accident is judged whether there is.Telecontrol management system: by
Tele-control system and hoistable platform State Feedback System composition on device, pass through preventing road monitoring system road conditions Real-time Feedback
Traffic police command centre is given, when more serious traffic accident occurs (vehicle damage can not move), traffic police command centre is connected to accident report
Alert, from professional staff, unit issues control to the automatic rising-sinking platform control unit of accident section and refers to by wireless communication
It enables, and receives status information that automatic rising-sinking platform control unit transmits and show, to realize automatic rising-sinking platform
Long-range control, so that it is quickly reached the scene of the accident, by accident occur section lifting relieve traffic congestion；Mobile system: by being laid on
The guide rail and running motor composition of road on both sides of the road；The direction of motion of running motor is controlled by three position four-way directional control valve, reversal valve
At middle position, hydraulic pump does not give walking loop fuel feeding, integrated by shuttle valve and pressure compensator, proportional reversing valve is converted to double
To adjustable speed governing valve, compensation pressure device can be used to fill up to be produced since the factors such as equipment and track friction change load
The raw pressure loss, to eliminate the influence that load variation generates speed to a certain extent.By adjusting connection reversal valve
It can reach the purpose of compensation pressure with the overflow valve of shuttle valve；When the offset that the pressure of selection needs is not high, proportional reversing valve
With little flow gain, if the opposite pressure selected needs higher offset, proportional reversing valve if, has larger
Flow gain；It can guarantee that the running motor speed of service is steady in this way, prevent occurring biggish impact force when velocity variations,
Larger shaking will not be generated by further ensuring equipment；Go up and down speed-regulating system: lifting speed regulation loop hydraulic principle is as shown in Figure 3,
Flow control system has multiple functions, including automatic Low-pressure load discharge, load-sensing feedback and flow matches.Pass through throttle valve
Aperture controls the flow of input executive component, and proof load has no effect and the stabilization of output speed to being defeated by oil cylinder
Property.Operating pressure is controlled by changing throttle orifice aperture；It is prevented by the way that check valve is arranged in hydraulic cylinder oil inlet pipe
Hydraulic oil reflux in hydraulic cylinder.Lifting hydraulic cylinder oil return circuit by the way of outlet throttling, which by throttle valve and
The combination of reversal valve is realized, and selects to add check valve in hydraulic cylinder oil inlet pipe.The realization of lowering action can be by certainly
Retract hydraulic cylinder again, speed has certain limitation during decline, to prevent excessive velocities from generating big impact force, and guarantee
The locking when elevating loop does not work, while preventing other possible backflow phenomenons.
A kind of quick delivery apparatus of new city road traffic accident mainly turns to 2, second turns of slideway by column 1, first
To slideway 3, guide rail 4, carrying roller 5, lift arm 6, the composition such as hydraulic 7.Carrying roller 5 is responsible for the most weight of bogey,
It cooperates the movement for capableing of finishing device with guide rail 4；Column 1, which is mounted on, to be turned to above slideway, energy under the action of turning to slideway
Multi-direction sliding is completed, enough convenient for just putting the road that accident occurs to both sides of the road；There are four supporting points for the tool of lift arm 6, can
It is rotated according to center of gravity difference caused by the physical location difference on accident section of accident vehicle, to support accident vehicle
?；Hydraulic is mounted on 1 top of column, to cooperate lift arm 6 that accident section is lifted away to both sides of the road.In serious traffic thing
Story therefore the first time occurred, the present invention is controlled by traffic police command centre or live traffic police accident is moved to by guide rail 4 and show
, the position of section lift arm 6 occurs according to accident, four supporting points is enable to support the accident section where accident vehicle, liquid
It presents a theatrical performance as the last item on a programme and 7 lifts accident vehicle, column 1 is slided to both sides of the road along turning to slideway, and accident generation section is moved to road
Two sides complete to dredge.
The purpose of the present invention is to solve road traffic accident cannot obstructing problem brought by timely and effective processing, mention
For a kind of quick delivery apparatus of new city road traffic accident, in the first time to receive the report for police service, traffic control center is sent
The quick delivery apparatus for being placed on both sides of the road handles the scene of the accident, the road that accident is occurred using lifting speed-regulating system
Section is moved in time after lifting puts to both sides of the road, prevents traffic jam.Automatic rising-sinking platform in the present invention uses straddle mounted type structure,
In conjunction with guide rail mobile system, can not influenced completely by condition of road surface, have the characteristics that fast response time, dredge it is high-efficient, fit
For all kinds of accident-prone road sections and special road section, have broad application prospects.
To achieve the above object, the technical solution adopted by the present invention is as follows:
Step 1 is laid with road surface: special in the accident-prone road section and overpass, bridge spanning the sea that use the system etc.
Section is laid with two layers of road surface.
Step 2: framework preventing road monitoring system, the omnidirectional camera by road, contact traffic police department alarm system with
And patrol police；By the uninterrupted monitoring to road, traffic accident is judged whether there is.
Step 3: telecontrol management system: in the present invention by automatic rising-sinking platform be placed on accident-prone road section and overpass,
The special road sections such as bridge spanning the sea need a set of control system control automatic rising-sinking platform quickly to reach accident existing when a fault occurs
, this part passes through nothing by professional staff after traffic police command centre is connected to accident alarming using tele-control system
Line communication unit issues control instruction to the automatic rising-sinking platform control unit of accident section, and receives automatic rising-sinking platform control
Status information that unit processed transmits simultaneously is shown, to realize the long-range control of automatic rising-sinking platform, it is made quickly to reach thing
Therefore it is live, section lifting is occurred into for accident and is relieved traffic congestion；
Step 4: mobile system: the mobile system hydraulic schematic diagram of automatic rising-sinking platform is as shown in Figure 2.Running motor
The direction of motion is controlled by three position four-way directional control valve, and reversal valve hydraulic pump at middle position does not give walking loop fuel feeding, by shuttle valve with
Pressure compensator is integrated, and proportional reversing valve is converted to bilaterally adjustable speed governing valve, compensation pressure device can be used to fill up by
In the pressure loss that the factors such as equipment and track friction change load and generate, to eliminate load variation to a certain extent
The influence that speed is generated.It can reach the purpose of compensation pressure by adjusting the overflow valve of connection reversal valve and shuttle valve；Work as selection
The offset that needs of pressure it is not high when, proportional reversing valve has little flow gain, if the opposite pressure selected needs
When higher offset, proportional reversing valve then has biggish flow gain；It can guarantee that the running motor speed of service is flat in this way
Surely, prevent occurring biggish impact force when velocity variations, larger shaking will not be generated by also further ensuring equipment；
Step 5: lifting speed-regulating system: lifting speed regulation loop hydraulic principle is as shown in Figure 3, and flow control system has more
Kind function, including automatic Low-pressure load discharge, load-sensing feedback and flow matches.Input is controlled by throttle valve opening to execute
The flow of element, and proof load has no effect and the stability of output speed to being defeated by oil cylinder.By changing throttle orifice
Aperture controls operating pressure；Prevent the hydraulic oil in hydraulic cylinder from returning by the way that check valve is arranged in hydraulic cylinder oil inlet pipe
Stream.Lifting hydraulic cylinder oil return circuit by the way of outlet throttling, realized by the combination of throttle valve and reversal valve by which, and
Selection adds check valve in hydraulic cylinder oil inlet pipe.The realization of lowering action can be such that hydraulic cylinder retracts by self weight, decline
Speed has certain limitation in the process, to prevent excessive velocities from generating big impact force, and guarantees when elevating loop does not work
Locking, while preventing other possible backflow phenomenons.
Chinese automobile traffic accident accounts for global 20%, and what this surprising data was hidden behind is traffic accident bring
Massive losses caused by traffic jam, the present invention have the advantages that the innovation such as fast response time, treatment effeciency height, can send out in accident
Raw first time reaches scene and relieves traffic congestion, and has broad application prospects.The especially special road such as overpass, bridge spanning the sea
Section inevitably results in road section traffic volume paralysis once traffic accident occurs, and the present invention is able to solve this urgent feelings just
Condition.In addition to traffic dispersion, the present invention also has the application prospect of emergency relief, leads in the scene of the accident since road conditions are complicated
When rescue personnel being caused not rescue in time, the wounded can take hoistable platform and spacious section is gone to receive rescue.In conclusion this is new
The quick leading method of type Urban Road Traffic Accidents has broad application prospects in the traffic accident field of dredging, and is worth pushing greatly
Extensively.
Lifting speed-regulating system is one of main movement system of the invention, the accuracy and reliability of HYDRAULIC CONTROL SYSTEM
The premise of automatic lifting system job stability, thus need to lifting speed-regulating system control performance carry out simulation analysis (with
Under the simulation analysis that is related to should all be put into specific embodiment), flow pulsation, the revolution oil of press pump are ignored in analytic process
The leakage of cylinder, the influence of Dynamic Characteristic of Pipes and duct pressure loss.The mathematical model of lifting speed-regulating system is established below and divides
Analyse its dynamic characteristic.
Hydraulic pump output hydraulic pressure oil pressure is p1, p is fallen to by depressurizing downstream pressure2, p2Become p after throttle valves,
It is acted on decompression valve core simultaneously, carries out pressure compensation.
Mathematical model simulation is transient process of the hydraulic cylinder speed from original state to stable state.Angling cylinder at this time
The stress equation of piston are as follows:
pL=p4-nps
In formula, A1For the effective work area of hydraulic cylinder rodless cavity；pLFor load pressure；M is hydraulic cylinder component and load
Convert the quality on moving component；X is the displacement of piston motion,For the speed of piston motion,For the acceleration of piston motion
Degree；C is damped coefficient；FLFor outer load；FsFor system damping；p4It is hydraulic cylinder without bar operating pressure；N is piston and piston rod
Area ratio；psThere is bar operating pressure for hydraulic cylinder；
Hydraulic cylinder rodless cavity flow equation are as follows:
In formula, Q is hydraulic cylinder admission chamber flow；X is the displacement of piston motion；CiThe hydraulic cylinder interior leakage coefficient of leakage；pLFor load
Pressure；V1Hydraulic cylinder admission chamber volume；βcOil liquid bulk modulus；Pressure change rate；p4It works and presses without bar for hydraulic cylinder
Power.
Due to hydraulic cylinder interior leakage leakage quantity very little, network analysis is influenced less, so the C in formula (3)ipLItem can be considered as
Zero, therefore formula (3) can simplify are as follows:
If not considering the factors such as pipe leakage, the pressure loss, enter hydraulic cylinder then should be equal to by the flow of throttle valve
The flow of rodless cavity obtains after making linearization process to it so there is flow continuity equation:
In formula, Δ Q flow gain；A is throttling flow area；Δ a is the through-flow variation area that throttles；KAFor the through-flow system that throttles
Number；Δp1For pressure increment；KQFor flow gain coefficient,K is discharge coefficient；KCFor flow pressure system
Number,Δp1For P1Variable quantity.
Wherein Δ Q, Δ a, Δ p1It can indicate are as follows:
In formula, Q (0), a (0), p1It (0) is respectively Q (t), a (t), p1(t) initial value；In the case where initial value is 0
To formula (1), (4) and (5) do Laplace transformation, obtain:
Jacking system control structure figure is drawn according to formula (7), as shown in Figure IV；In formula, pL(s)、FL(s)、a(s)、
p4It (s) is respectively pL(t)、FL(t)、a(t)、p4(t) pull-type transformation results, M are hydraulic cylinder component and load folding
Calculate the quality on moving component；A1For the effective work area of hydraulic cylinder rodless cavity；B is piston motion displacement coefficient；FLIt is outer negative
It carries；Q (S) hydraulic cylinder rodless cavity flow；V1For hydraulic cylinder admission chamber capacity；βcOil liquid bulk modulus；KQ0After Laplace transformation
Throttle flow area gain；KE0For the flow pressure coefficient after Laplace transformation；
Respectively using throttle valve opening area and load force as input quantity, hydraulic cylinder piston rod movement velocity is the biography of output quantity
Delivery function are as follows:
In formula, ωnFor hydraulic cylinder intrinsic frequency；ξnDamping ratio.
The simulation model of lifting speed-regulating system is established using MATLAB/SIMULINK, model is as shown in Figure 5；Apply respectively
The load force of 25000N and 30000N, simulation time are set as 5S, using variable step ODE15S solver, choose hydraulic cylinder speed
The process for reaching steady-state value from zero.Simulation result as shown in figure 6, finds out that hydraulic cylinder reaches steady when load is big from simulation result
The used time of constant speed degree is than loading small duration；And hydraulic cylinder output speed has better dynamic characteristic, speed-regulating system speed phase
Should be very fast, it is a stable system.
Since automatic rising-sinking platform needs high stability and high reliability during the work time in this programme, so needing logical
Emulation is crossed to verify the reliability of the correctness of simulation result and operation hydraulic system.By simulation result it is found that in load phase
With under conditions of, when hydraulic cylinder reaches stabilized speed, test result meets truth, and speed-regulating system reaction speed is fast, is
One systems stabilisation.It goes up and down speed control loop and pressure compensation is played the role of by the flow valve that uniform-pressure-drop valve, throttle valve form, thus
Stablize throttle valve opening degree, it can be seen that hydraulic cylinder output speed will not become substantially when loading variation from emulation
Change, it can thus be seen that speed control loop design is reasonable.
In summary: the present invention is to provide a kind of quick delivery apparatus of new city road traffic accident, belong to intelligence
Field of traffic.Mainly it is made of preventing road monitoring system, telecontrol management system, mobile system and the parts such as lifting speed-regulating system.This
Innovation hydraulic elevator platform is combined with guide rail running gear, device has column, turns to slideway, guide rail, load-bearing
Wheel, lift arm, the structures such as hydraulic.In both sides of the road framework preventing road monitoring system, when there is more serious traffic accident to occur
(vehicle damage can not move), under the control at traffic police center, the present apparatus can be moved at the first time accident spot, will send out
Make trouble thus section lift, rise at the same time the underpavement being laid in advance, the road surface of accident will occur by guide rail running gear
It is transported on the emergent management lane in roadside, prevents later vehicle from traffic congestion occurs.With fast response time, treatment effeciency is high
The advantages that.
Claims (5)
1. a kind of quick delivery apparatus of new city road traffic accident, characterized in that including guide rail, holding on guide rail is arranged in
The column turned on slideway, hydraulic be arranged on column, institute is arranged in roller, the steering slideway being arranged on carrying roller
Carrying roller is stated to match with guide rail；It is additionally provided with lift arm, the column is internally provided with slideway, the slideway and lift arm phase
Cooperation.
2. the quick delivery apparatus of new city road traffic accident according to claim 1, characterized in that the guide rail is set
It sets in the two sides of road.
3. the quick delivery apparatus of new city road traffic accident according to claim 1 or 2, characterized in that the lift
It rises and is provided with supporting point on arm.
4. the quick delivery apparatus of new city road traffic accident according to claim 1 or 2, characterized in that described turn
It include the first steering slideway and the second steering slideway being flexibly connected with the first slideway to slideway.
5. the quick delivery apparatus of new city road traffic accident according to claim 3, characterized in that the steering is slided
Road includes the first steering slideway and the second steering slideway being flexibly connected with the first slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229138.1A CN109867231B (en) | 2019-03-25 | Quick city road traffic accident dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229138.1A CN109867231B (en) | 2019-03-25 | Quick city road traffic accident dredging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109867231A true CN109867231A (en) | 2019-06-11 |
| CN109867231B CN109867231B (en) | 2024-04-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276920A (en) * | 2019-07-02 | 2019-09-24 | 义乌紫英机械科技有限公司 | A kind of quick delivery apparatus of Urban Road Traffic Accidents |
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| JP2007176432A (en) * | 2005-12-28 | 2007-07-12 | Kyokuto Kaihatsu Kogyo Co Ltd | Bumper device |
| CN203269392U (en) * | 2013-03-26 | 2013-11-06 | 北京物资学院 | Road emergency rescue device |
| CN108327603A (en) * | 2018-03-05 | 2018-07-27 | 权家浩 | A kind of traffic accident wrecking truck and its emergency control method |
| CN108791025A (en) * | 2018-08-20 | 2018-11-13 | 吉林大学 | A kind of the car barrier clearing device and its control method of wheelbase wheel diameter adaptive |
| CN108909600A (en) * | 2018-09-14 | 2018-11-30 | 朱国红 | A kind of highway way moving Succor plain stage |
| CN209853656U (en) * | 2019-03-25 | 2019-12-27 | 哈尔滨工程大学 | Novel urban road traffic accident is dredged fast device |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007176432A (en) * | 2005-12-28 | 2007-07-12 | Kyokuto Kaihatsu Kogyo Co Ltd | Bumper device |
| CN203269392U (en) * | 2013-03-26 | 2013-11-06 | 北京物资学院 | Road emergency rescue device |
| CN108327603A (en) * | 2018-03-05 | 2018-07-27 | 权家浩 | A kind of traffic accident wrecking truck and its emergency control method |
| CN108791025A (en) * | 2018-08-20 | 2018-11-13 | 吉林大学 | A kind of the car barrier clearing device and its control method of wheelbase wheel diameter adaptive |
| CN108909600A (en) * | 2018-09-14 | 2018-11-30 | 朱国红 | A kind of highway way moving Succor plain stage |
| CN209853656U (en) * | 2019-03-25 | 2019-12-27 | 哈尔滨工程大学 | Novel urban road traffic accident is dredged fast device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110276920A (en) * | 2019-07-02 | 2019-09-24 | 义乌紫英机械科技有限公司 | A kind of quick delivery apparatus of Urban Road Traffic Accidents |
| CN110276920B (en) * | 2019-07-02 | 2021-02-12 | 长安大学 | Urban road traffic accident rapid dredging device |
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