CN202608638U - Novel rescue and transport vehicle for expressway - Google Patents
Novel rescue and transport vehicle for expressway Download PDFInfo
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- CN202608638U CN202608638U CN 201220242698 CN201220242698U CN202608638U CN 202608638 U CN202608638 U CN 202608638U CN 201220242698 CN201220242698 CN 201220242698 CN 201220242698 U CN201220242698 U CN 201220242698U CN 202608638 U CN202608638 U CN 202608638U
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- high speed
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Abstract
The utility model discloses a novel rescue and transport vehicle for an expressway, which comprises a tractor and a trailer connected with each other, wherein a driving mechanism, a control and steering system, a chassis and a frame are arranged in the tractor; the driving mechanism, the control and steering system and the chassis are all mounted on the frame; a front wheel and a rear wheel are arranged on a transverse center line at the lower part of the frame; the front wheel is a steering wheel; the steering wheel is connected with the control and steering system; the rear wheel is a driving wheel connected with a power device; balance wheel sets are respectively arranged on two sides of the rear wheel, and are mounted at the lower part of the frame through independent suspensions; and traveling wheels are arranged at four corners at the bottom of the trailer through the independent suspensions. When a traffic accident happens on the expressway, under the condition of road jamming, the rescue and transport vehicle can still pass through the narrow passage smoothly to convey emergency equipment, medical equipment and medical staff to the scene of the accident for emergency rescue, and carry the wounded away from the scene of the accident to realize the emergency rescue and transportation.
Description
Technical field
The utility model relates to a kind of rescue and transport trolley field, relates in particular to good, the simple in structure rescue transport trolley that when the express highway occurrence of traffic accident, carries out salvage work of a kind of through performance.
Background technology
In recent years, traffic accidents takes place frequently, and the order of severity of accident is ascendant trend year by year.Road conditions after accident takes place are generally all very poor; Tend to cause the vehicle percent of pass to descend; Most of vehicle drivers can very easily cause vehicle and block up because be eager to take express highway sudden stop band through the accident highway section, stop up Emergency Vehicle Lane; Cause the accident rescue vehicle can't in time arrive the scene of the accident, reduce rescue efficiency.Tow lift volume commonly used at present is big, very flexible, the tow lift that does not have to adapt to catwalk and can transport personnel and goods and materials.Vehicle blocks up and makes tow lift be difficult in time arrive the scene of the accident, rescues untimely and causes the innocent people sacrifice.
The utility model content
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art; A kind of novel high speed highway rescue transport trolley is provided, when this transport trolley can traffic accident generation vehicle blocks up on express highway, utilizes slypes such as curb, vehicle crack; Replace manpower in time to transport emergency serving unit, medicine equipment and healthcare givers with machinery and arrive the scene of the accident; Save medical personnel's energy so that better put in the salvage work, carry out emergency relief, and be with the wounded from the scene of the accident as early as possible; Improve rescue efficiency, effectively reduce traffic mortality.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of novel high speed highway rescue transport trolley; Comprise continuous tractor truck and trailer; Be provided with driver train, control and steering swivel system, chassis and vehicle frame in the said tractor truck, driver train, control and steering swivel system, chassis are installed on the vehicle frame, and vehicle frame lower, transverse line of centers is provided with former and later two wheels; Anterior wheel is a wheel flutter; Wheel flutter links to each other with control and steering swivel system, and rear wheel is the drive wheel that links to each other with engine installation, and the both sides of rear wheel are respectively equipped with the balance wheels that are installed in the vehicle frame bottom through independent suspension; The bottom of said trailer is equipped with road wheel through independent suspension respectively on four angles.
The width of said tractor truck and trailer is identical, and tractor truck is provided with operator's compartment, and the operator's compartment top is provided with warning device.
Said tractor truck front end is provided with the horizontal ranging rod of preceding spy formula that stretches out forward, and the said preceding horizontal ranging rod of spy formula is processed by rubber, and its integral width is identical with the width of tractor truck and trailer.
Connect through versatile spindle and pin between said tractor truck and the trailer, the front and back of said trailer are equipped with versatile spindle, and the bottom of trailer is provided with backup power.
Said driver train comprises storage battery and the drive hub motor that links to each other through lead, and the drive hub motor links to each other with the drive wheel of tractor truck.
The diameter of said wheel flutter equals the diameter of drive wheel.
Said wheel flutter is installed on the vehicle frame through vibration decreasing front fork adapter plate and wheel flutter hydraulic damper, and said drive wheel is installed on the vehicle frame through the drive wheel hydraulic damper.
Be equipped with the plate disc brake that links to each other with brake pedal in the operator's compartment through brake wire on said wheel flutter, drive wheel and the road wheel.
The independent suspension of said connection balance wheels comprises the balance wheel hydraulic damper; Balance wheel hydraulic damper one end links to each other with the wheel shaft of balance wheels; The other end is connected in the vehicle frame bottom of tractor truck, and the wheel shaft of balance wheels upper end is enclosed within on the drive wheel hydraulic damper of drive wheel.
The independent suspension of said connection road wheel comprises swing arm under coil spring, column support type shock absorber, the A font; The column support type shock absorber is as stub; Be with coil spring on it; The lower end of column support type shock absorber respectively with the A font under a sidewall of swing arm link to each other with road wheel, the upper end of swing arm all is connected in the bottom of trailer under column support type shock absorber and the A font.
The rescue transport trolley of the utility model is divided into tractor truck and trailer two parts.Tractor truck is the power and the steering unit of car load, is responsible for controlling direction by driver's operation, and the tractor truck trailing wheel is a drive wheel, and wheel hub electric motor is housed, and the car load needed power that goes is provided.The balance wheel that the configuration of tractor truck drive wheel both sides can be regulated voluntarily keeps the normal smooth-ride of tractor truck to tackle bad road conditions.Through structural analysis and optimal design, trailer four-wheel suspension system adopts independent suspension structure, and rescue transport trolley backup power is placed in the bottom, lowers the center of gravity.All have before and after the trailer and tractor truck between bonded assembly versatile spindle structure, tractor truck can be connected with trailer quickly and easily.
The rescue transport trolley width of the utility model is smaller, can pass through slypes such as curb, vehicle crack smoothly; Load-carrying ability is strong, tractive performance good; Enough balances are arranged, can transport safely; Have certain steering capability, can carry out flexibly, fast, accident rescue effectively.From the energy savings angle, choose the low-carbon (LC) green energy resource; From body construction and size angle, choose structural materials in light weight, that intensity is high; From practical standpoint, corollary equipment is designed and chooses; Consider the putting position of appropriate design equipment, fixed form from rescue group's angle.Take all factors into consideration the each side factor, improve the design of novel high speed highway rescue.
The beneficial effect of the utility model is, during the express highway occurrence of traffic accident, under the situation that express highway blocks up; The rescue transport trolley still can pass through smoothly; Utilize slype, in time transport emergency serving unit, medicine equipment and healthcare givers and arrive the scene of the accident, carry out emergency relief; And be with the wounded from the scene of the accident as early as possible, realize the emergency management and rescue transportation.Rescue transport trolley width is less, has enough balance qualities to transport safely, and load-carrying ability is strong, tractive performance good, can carry out flexibly, fast, accident rescue effectively.
Description of drawings
Fig. 1, Fig. 2 all are the utility model perspective view;
Fig. 3 is the utility model front view;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the birds-eye view of Fig. 4;
Fig. 6 is the balance wheels and the independent suspension structure scheme drawing of the utility model;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the birds-eye view of Fig. 6;
Fig. 9 is the independent suspension structure scheme drawing that the utility model connects road wheel;
Figure 10 is the right elevation of Fig. 9;
Figure 11 is the birds-eye view of Fig. 9;
Figure 12 is the mechanical model figure of the utility model;
1. tractor trucks wherein, 2. trailer, 3. versatile spindle, 4. road wheel, 5. independent suspension, 6. balance wheels, 7. drive wheel, 8. steering front wheel, 9. wheel flutter hydraulic damper, 10. before the horizontal ranging rod of spy formula, 11. siren hornes, 12. operator'ies compartment, 14. car lights; 15. stretcher; 16. stand by battery; 17. balance wheel hydraulic damper; 18. drive wheel hydraulic damper; 19. wheel hub electric motor, 20. wheel shafts, 21 coil springs, 22. column support type shock absorbers, swing arm under the 23.A font.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Like Fig. 1-shown in Figure 5, the rescue transport trolley is divided into tractor truck 1 and trailer 2 two parts.Tractor truck 1 is the power and the steering unit of car load, is responsible for controlling direction by driver's operation, and the tractor truck trailing wheel is a drive wheel 7, and wheel hub electric motor is housed, and the car load needed power that goes is provided.The balance group 6 that the configuration of tractor truck drive wheel both sides can be regulated is voluntarily taken turns to tackle bad road conditions, keeps tractor truck 1 normal smooth-ride.Trailer 2 four-wheel suspension systems adopt independent suspension 5 structures, and rescue transport trolley backup power is placed in the bottom, lowers the center of gravity.Trailer 2 front and back all have and tractor truck 1 between bonded assembly versatile spindle structure, tractor truck 1 can be connected with trailer 2 quickly and easily.
Tractor truck 1 is drive wheel 7 and drive wheel hydraulic damper 18, tractor truck balance wheel system by the horizontal ranging rod of preceding spy formula 10, steering front wheel 8 and wheel flutter hydraulic damper 9, the trailing wheel that has a wheel hub electric motor 19 mainly, and the operator's compartment 12 of band sliding door, car light 14 etc. partly constitute.Steering front wheel 8 is installed on the vehicle frame through vibration decreasing front fork adapter plate and wheel flutter hydraulic damper 9.Trailer 2 parts mainly are made up of road wheel 4, four-wheel independent suspension system, trailer envelope, stand by battery 16, also place subsequent use stretcher 15 in the trailer 2.Adopt versatile spindle 3 to be connected between tractor truck 1 and the trailer 2.On steering front wheel 8, drive wheel 7 and the road wheel 4 plate disc brake is set all, said plate disc brake all links to each other through pedal brake pedal in steel rope and the operator's compartment 12.
Main technical details:
1) overall dimensions: tractor truck 1200mm * 450mm * 1400mm, trailer 2000mm * 450mm * 1000mm;
2) left and right sides balance wheels 2 are regulated size: ± 150mm;
3) power system: electric system, the wheel hub electric motor of tractor truck trailing wheel provides propulsive effort;
4) rated load≤500kg, maximum speed v
Max=12km/h;
5) brake mode: adopt the service brake formula, plate disc brake.
The balance wheel system design
Novel high speed highway rescue transport trolley balance wheels 6, structure such as Fig. 6-Fig. 8 are made up of the steamboat and the shock absorber that are configured in drive wheel 7 both sides, can the automatically regulating height, tackle bad road conditions.The independent suspension that connects balance wheels 6 comprises balance wheel hydraulic damper 17; Balance wheel hydraulic damper one 17 ends link to each other with the wheel shaft 20 of balance wheels 6; The other end is connected in the vehicle frame bottom of tractor truck 1, and wheel shaft 20 upper ends of balance wheels 6 are enclosed within on the drive wheel hydraulic damper 18 of drive wheel 7.
The preceding horizontal ranging rod of spy formula
According to " cat beard " principle; The horizontal ranging rod 10 of spy formula before tractor truck 1 the place ahead is provided with, the ranging rod manufacturing materials is selected rubber for use, and width is identical with rescue transport trolley width; The minimum turning radius of rescue transport trolley is 550mm, and the width of the horizontal ranging rod of preceding spy formula is 700mm.The preceding horizontal ranging rod 10 of spy formula is connected with operator's compartment 12, is consistent with tractor truck 1 integral body.The laterally design of ranging rod, before through slypes such as curb, vehicle cracks, the test of passing through judges that can tow lift pass through, and has the psychological pressure of alleviating chaufeur, with anti-scraping function.
The versatile spindle structure
Tractor truck 1 must have enough intensity to guarantee with the connection structure of trailer 2, needs quick splicing function again.Before and after trailer, all having adopted versatile spindle structure, its effect is that the angle that bob caused that two cars are produced before and after connecting, adapt to when turning to and moving changes.Adopt pin to connect between versatile spindle 3 and two cars, satisfy fast quick-detach assembly unit needs.
The trailer suspension system designs
The lateral dimension of trailer 2 is less, and most of space all will be used for arranging backup power, and the suspension space is also little.Principle with reference to Macphersan (Mai Fuxun) independent suspension; Designed the Macphersan active suspension system that meets the trailer actual conditions (like Fig. 9-shown in Figure 11); It is made up of swing arm 23 under coil spring 21, column support type shock absorber 22, the A font; Physical structure is column support type shock absorber 22 double as stubs, is with coil spring 21 on it, bears the last lower prestress that comes from vehicle body shake and ground shock; The stub position changes with the bob of wheel, has excellent traveling stability.The lower end of column support type shock absorber 22 respectively with the A font under a sidewall of swing arm 23 link to each other with road wheel 4, the upper end of swing arm 23 all is connected in the bottom of trailer 2 under column support type shock absorber 22 and the A font.Trailer suspension system simple structure, light weight, volume is little, and the suspension space hold is little.Suspension " puncture " probability is less; The axletree that does not connect left and right wheels can reduce the height of trailer, thereby reduces barycenter, enlarges the loaded area of vehicle body.
Power and braking force matching Design
The power coupling of express highway tow lift
According to the design goal of express highway tow lift, mate its power demand, select satisfactory tow lift electrical motor.At first, set up mechanical model (shown in figure 12) to tow lift.
The express highway tow lift moves on the road surface; The effort that various different directions and different sizes are arranged is on tow lift; This paper mainly studies tow lift is moved the power that direct influence is arranged; The external force that just parallels with rescue transport trolley direction and the component of external force, these power can be divided into three kinds:
Propulsive effort F
q, it is that traction motor by tow lift produces, and the external force that causes through drive wheel and ground-surface mutual action.
The total drag Fz that goes, it is the external force of the prevention battery-driven car operation that causes of the multiple reason when being moved by the express highway tow lift.
Braking force B, it is that brake equipment by the express highway tow lift produces, and through the external force that wheel and ground-surface mutual action cause, is used for making the express highway tow lift to slow down or stops.The service direction of it and express highway tow lift is opposite.
These three kinds of power form in a different manner and act on the C that makes a concerted effort that forms on the Electrical Bicycle:
During running under power: C=F makes a concerted effort
q-Fz;
During the inertia operation: C=-Fz makes a concerted effort;
Glancing impact: C=-(B+Fz) makes a concerted effort.
The express highway tow lift has three kinds in run time behaviour:
Traction state, tow lift are under the tractive force effect of electrical motor, and starting is quickened or the constant speed operation;
Inertia operation, tow lift are in operation traction motor outage back by the inertia operation;
Running under braking, tow lift are in operation and cut off the power supply of traction motor, and brake activation power, run slowly.
The express highway tow lift is under traction constant speed state, and the power that acts on the express highway tow lift along service direction has propulsive effort F
q, self inertia power F
gAnd resistance to motion F
f, can draw by the mechanical model analysis
F
z＝F
g+F
f （1-1）
According to quiet method principle, can list following equation
In the formula,
is the startup acceleration/accel of express highway tow lift; The quality of m express highway tow lift.
F
f＝mg(ω+i) （1-3）
In the formula, the drag coefficient when ω moves for the express highway tow lift with reference to table 1, and combines the design of the express highway tow lift road conditions of going, value ω=0.015; I is the maximum longitudinal grade gradient, according to the highway engineering in China technical standard order, in the utility model, adopts the gradient of longitudinal gradient on the express highway of Maximum speed limit 100kmh, is 4% to the maximum
[4]
In the formula, γ is the rotatory inertia coefficient, and with reference to the data of mine locomotive, the express highway tow lift gets 0.075.
Formula (1-3), (1-4) are brought in the formula (1-2), obtain
By maximum running power W computing formula, can know
W＝F
q×v （1-6）
At this moment, power of motor W
1For
W
1＝W/η （1-7）
Wherein, η is an electrical efficiency, value 0.8.
Thus, the DC Brushless Motor of the selected rated voltage 48V of the project team, rating horsepower 3Kw.
The different ground-surface coefficients of rolling friction of table 1
The braking force coupling of express highway tow lift
Opposite with driving, braking is to make full use of the power opposite with tow lift, makes express highway tow lift forced deceleration.In braking procedure, tow lift mainly receives the braking force of ground effects in wheel.Braking ability, tow lift are pressed the continuous forced deceleration of assigned direction down to the ability of slowing down, and this is the important assurance of tow lift safety traffic.
The suffered total braking force of glancing impact express highway tow lift comprises brake braking force B and ground braking force F
fForm.At this moment, tow lift does suffered making a concerted effort
In the formula;
is the deceleration/decel of express highway tow lift at glancing impact; B is a braking force, and C is for making a concerted effort.
Under the safety operating mode, the vehicle stopping distance requirement with reference to the requirement to stopping distance in the universal standard of secure context of GB17907-1999 mechanical parking equipment, when s≤4m, is satisfied
Release
Draw drg by designing requirement and effectively brake radius R=15cm, can draw the minimum lock torque T of drg requirement thus and do
T＝B·R （1-12）
T confirms that the plate disc brake lock torque is the plate disc brake of 500Nm thus.
Expressway traffic accident rescue transport trolley operational version
The configuration of tow lift
Novel high speed highway tow lift inner space is very limited, and carry-on wrecking equipment receives great restriction.Modularization storage compartment (the entrained rescue apparatus of tow lift) can be set in the trailer compartment; As give first aid to storage compartment (transforming stretcher, first aid box, body fixation balloon etc.); Orcible entry storage compartment (multifunctional hydraulic can clamp, hydraulic pressure cutter, hydraulic spreader, cutter, hydraulic relief push rod, electric percussion drill etc.); Other storage compartments: illuminating equipment, protective equipment etc.According to the rescue situation, the choose reasonable storage compartment.
The reasonable use of tow lift in rescue task
Also imperfection, particularly express highway have more increased the difficulty of utilizing city medical treatment, first aid, fire-fighting and environmental sanitation system rescue to the express highway emergency rescuing system of China away from the city at present.Especially after accident caused express highway to get congestion, reasonable use expressway traffic accident tow lift can make the wounded farthest given treatment to.For the use of tow lift, should accomplish as far as possible following some:
(1) combines the express highway information system, judge the order of severity of traffic accident, novel tow lift of reasonable disposition and modularization storage compartment.
(2) novel tow lift should be downloaded to suitable position by large-scale rescue transport trolley, quick-assembling and place in operation.
Application prospect
This novel high speed highway rescue transport trolley has compact conformation, easy and simple to handle, characteristics such as consumes energy is few, as a kind of later-model express highway rescue tool, has filled up the blank of domestic correlative technology field.Compare with existing rescue transport trolley, scantling of structure is little, makes with maintenance cost lower; Low-carbon environment-friendly can be applicable to the accident rescue work of special road sections such as express highway and urban viaduct, improves accident rescue efficient effectively; Practical value is high, has a extensive future.
Though the above-mentioned accompanying drawing that combines is described the specific embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (10)
1. a novel high speed highway is rescued transport trolley; It is characterized in that, comprise continuous tractor truck and trailer, be provided with driver train, control and steering swivel system, chassis and vehicle frame in the said tractor truck; Driver train, control and steering swivel system, chassis are installed on the vehicle frame; Vehicle frame lower, transverse line of centers is provided with former and later two wheels, and anterior wheel is a wheel flutter, and wheel flutter links to each other with control and steering swivel system; Rear wheel is the drive wheel that links to each other with engine installation, and the both sides of rear wheel are respectively equipped with the balance wheels that are installed in the vehicle frame bottom through independent suspension; The bottom of said trailer is equipped with road wheel through independent suspension respectively on four angles.
2. novel high speed highway rescue transport trolley as claimed in claim 1 is characterized in that the width of said tractor truck and trailer is identical, and tractor truck is provided with operator's compartment, and the operator's compartment top is provided with warning device.
3. novel high speed highway rescue transport trolley as claimed in claim 1 is characterized in that said tractor truck front end is provided with the horizontal ranging rod of preceding spy formula that stretches out forward, and the said preceding horizontal ranging rod of spy formula is processed by rubber, and its width is 700mm.
4. novel high speed highway rescue transport trolley as claimed in claim 1 is characterized in that connect through versatile spindle and pin between said tractor truck and the trailer, the front and back of said trailer are equipped with versatile spindle, and the bottom of trailer is provided with backup power.
5. novel high speed highway rescue transport trolley as claimed in claim 1 is characterized in that said driver train comprises storage battery and the drive hub motor that links to each other through lead, and the drive hub motor links to each other with the drive wheel of tractor truck.
6. novel high speed highway rescue transport trolley as claimed in claim 1 is characterized in that the diameter of said wheel flutter equals the diameter of drive wheel.
7. like claim 1 or 6 described novel high speed highway rescue transpories trolley, it is characterized in that said wheel flutter is installed on the vehicle frame through vibration decreasing front fork adapter plate and wheel flutter hydraulic damper, said drive wheel is installed on the vehicle frame through the drive wheel hydraulic damper.
8. novel high speed highway as claimed in claim 1 rescue transport trolley is characterized in that, is equipped with the plate disc brake that links to each other with brake pedal in the operator's compartment through brake wire on said wheel flutter, drive wheel and the road wheel.
9. novel high speed highway rescue transport trolley as claimed in claim 7; It is characterized in that; The independent suspension of said connection balance wheels comprises the balance wheel hydraulic damper; Balance wheel hydraulic damper one end links to each other with the wheel shaft of balance wheels, and the other end is connected in the vehicle frame bottom of tractor truck, and the wheel shaft of balance wheels upper end is enclosed within on the drive wheel hydraulic damper of drive wheel.
10. novel high speed highway rescue transport trolley as claimed in claim 1; It is characterized in that; The independent suspension of said connection road wheel comprises swing arm under coil spring, column support type shock absorber, the A font, and the column support type shock absorber is with coil spring as stub on it; The lower end of column support type shock absorber respectively with the A font under a sidewall of swing arm link to each other with road wheel, the upper end of swing arm all is connected in the bottom of trailer under column support type shock absorber and the A font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242698 CN202608638U (en) | 2012-05-28 | 2012-05-28 | Novel rescue and transport vehicle for expressway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242698 CN202608638U (en) | 2012-05-28 | 2012-05-28 | Novel rescue and transport vehicle for expressway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202608638U true CN202608638U (en) | 2012-12-19 |
Family
ID=47342363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220242698 Expired - Fee Related CN202608638U (en) | 2012-05-28 | 2012-05-28 | Novel rescue and transport vehicle for expressway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202608638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673665A (en) * | 2012-05-28 | 2012-09-19 | 山东交通学院 | Novel expressway rescue transport vehicle |
| CN103863170A (en) * | 2014-04-01 | 2014-06-18 | 徐州重型机械有限公司 | Hoisting rescue device and installation method |
| CN106864488A (en) * | 2017-01-18 | 2017-06-20 | 王朝明 | Rail high-speed traffic system |
-
2012
- 2012-05-28 CN CN 201220242698 patent/CN202608638U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673665A (en) * | 2012-05-28 | 2012-09-19 | 山东交通学院 | Novel expressway rescue transport vehicle |
| CN102673665B (en) * | 2012-05-28 | 2013-10-16 | 山东交通学院 | Novel expressway rescue transport vehicle |
| CN103863170A (en) * | 2014-04-01 | 2014-06-18 | 徐州重型机械有限公司 | Hoisting rescue device and installation method |
| CN103863170B (en) * | 2014-04-01 | 2016-08-17 | 徐州重型机械有限公司 | Hang and lead deliverance apparatus and installation method |
| CN106864488A (en) * | 2017-01-18 | 2017-06-20 | 王朝明 | Rail high-speed traffic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130528 |