CN207798417U - Motor tricycle brake test device - Google Patents
Motor tricycle brake test device Download PDFInfo
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- CN207798417U CN207798417U CN201721374600.XU CN201721374600U CN207798417U CN 207798417 U CN207798417 U CN 207798417U CN 201721374600 U CN201721374600 U CN 201721374600U CN 207798417 U CN207798417 U CN 207798417U
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Abstract
The utility model discloses a kind of motor tricycle brake test devices,There is main transmission the motor of front roll part connection to provide roller rotation,The back roll part for being parallel to front roll is respectively arranged with motor,T-type gear-box is provided between the motor and roller,Rotary speed torque sensor is provided between motor and gear-box,The wheelbase adjustment system is mounted on the left of chassis,Front roll and motor coupling portion point in the main transmission are mounted in wheelbase adjustment system,T-type gear-box is provided between front roll and back roll to connect with shaft coupling,It is provided with trapezoidal scalable transmission shaft simultaneously,It is respectively arranged with the auxiliary cylinder in loading system in front and back roller both sides,The pressure sensor being provided on the transmission parts of the main transmission in rotary speed torque sensor and loading system is connect with electric-control system,The utility model by using wheelbase adjust system and loading system realize different wheelbases motor tricycle and different road conditions under test.
Description
Technical field
The utility model belongs to a kind of experimental rig, is concretely related to a kind of motor tricycle brake test device.
Background technology
With China's expanding economy, the continuous improvement of living standards of the people, people's safety requirements is higher and higher, promotes
It is related to the most important index braking ability of motorcycle safety performance be also continuously improved.Motorcycle and trail bike braking ability
And test method standard GB/T 20073 has revised completion, i.e., implements publication.250ml discharge capacities are distinctly claimed in standard
Above motorcycle will install advanced braking system-anti-lock braking system, and the motorcycle between 125ml-250ml should be installed
The test method requirement for the advanced braking system that anti-lock braking system or linkage brake system or two kinds of forms have, examination
Testing need to be in the braking ability on the i.e. low attachment coefficient road surface of simulation ice-patch surface.Experiment needs to build dedicated test roads, tests
Constructing road is costly, and a test roads need several ten million yuans.When experiment, the coefficient of road adhesion of road is also unstable
It is fixed, test not bery accurate, poor repeatability.Stability is poor when driving in Ordinary Rd for motor tricycle, is doing ANTI LOCK
When system performance test, it is equivalent to ice and snow road traveling, also to implement to brake, it is dangerous quite high.
Currently, the brake tester that China's motorcycle industry uses is anti-force type roller test stand.This testing stand is all only
The brake force of single wheel can be tested.The braking ability of vehicle cannot be tested, motorcycle anti-lock system can not be tested
Braking ability.
Invention content
In view of the presence of problem above, the utility model provides a kind of motor tricycle brake test device, especially band
The braking performance test of three motorcycles of anti-lock braking system, solves the problems, such as its safety, accuracy and testing efficiency, provides one
Kind is simple in structure, easy to operate, brakingization degree height, measuring accuracy height, wide range of measurement, measures stable, survey easy to maintain
Try equipment.
A kind of motor tricycle brake test device, it is characterised in that：Including main transmission and loading system, wheelbase
Adjustment system, chassis and electric-control system, the motor of front roll one end connection of main transmission and to be connected to front roll another
The inertia roll at end, two back roll one end for being parallel to front roll are connected on one end of T-type gear, T-type gear
Both ends on straight line are connected separately with motor and inertia roll, and rotating speed is provided between motor and T-type gear-box
Torque sensor, the wheelbase adjustment system are mounted on the left of chassis, the front roll in the main transmission and motor connection
It is partially installed in wheelbase adjustment system, T-type gear-box is provided between front roll and back rollWithShaft coupling connects, simultaneously
It is provided with trapezoidal scalable transmission shaft, is respectively arranged with the auxiliary cylinder in loading system in front and back roller both sides, the rotating speed is turned round
Square sensor and the pressure sensor being arranged in loading system are connect with electric-control system, the main transmission and add
Loading system and wheelbase adjustment system are installed on chassis.
Further：Main transmission is made three parts by preceding shaft portion, hind axle part and intermediate transmission part and is formed；Front axle
Part is connect by a motor with shaft coupling, and the shaft coupling is connect with the rotary speed torque sensor, rotary speed torque sensor
It being rotatablely connected with T-type gear-box, T-type gear-box is connect with front roll, and the front roll other end is rotatablely connected with electric clutch,
The electric clutch other side is connected with inertia roll；Back roll part is made by symmetrical two parts, per part by an electricity
There are one rotary speed torque sensor, the T-type gear-box being connect with rotary speed torque sensor, the connections of each trailing wheel roller for machine and connection
There are electric clutch and an inertia roll, wherein in roller both ends and motor side and inertia roll both ends be respectively arranged with bearing
Seat, shaft coupling is respectively connected with T-type gear-box connecting pin；Wherein two half part of back roll or so is connected by a differential mechanism；In
Between running part by a trapezoidal scalable transmission shaft, a bearing block, 2 T-type gear-boxes, 3 shaft couplings compositions, wherein one
T-type gearbox drive connection between two rollers of a T-type gear-box and back roll, T-type gear-box and another T-type gear
Case connects, and the latter T-type gear-box is connect with the T-type gearbox drive on front roll part, in the latter T-type gear-box with before
It is provided with the trapezoidal scalable transmission shaft between the T gear-boxes connection of roller part.
Further：Loading system is by two auxiliary cylinders, two supporting rods, two secondary guide rails, 3 T-type transmission cases, motor, 4
Pressure sensor, 6 shaft couplings, a pedestal are constituted, two supporting rod in X fonts intersect it is hinged after, upper end is divided
Two auxiliary cylinders are installed by axis and are located at roller both sides, lower end is located on the guide rail of pedestal, and the guide rail can be
It is slided on pedestal, motor is additionally provided on pedestal, the motor is connected by shaft coupling and T-type transmission case with the guide rail on pedestal
It connects, the pedestal lower end is provided with pressure sensor, the pressure sensor is connect by circuit with electric-control system.The structure
Mainly auxiliary cylinder is supported using strut, when needing to carry out the experiment under different scenes to motorcycle, need by strut to
Upper lifting reduces the pressure that bike wheel is pressed in roller, to change friction coefficient, and in lifting process, pressure sensing
The power of lifting is transmitted to computer by device to be reflected, so that it is determined that lifting height, and can by adjust loading system come
Height and pressure are adjusted, the experiment under different road conditions is simulated, achievees the purpose that adapt to various road conditions experiment.
Further：Wheelbase adjusts system and is made of two secondary guide rails, 3 T-type transmission cases, a motor, a pedestal and 4
Shaft coupling forms, and slidable guide rail is equipped on pedestal, the branch of the bearing block at setting installation front roll both ends on pedestal
Frame, and the holder of T-type transmission case and inertia roll is installed, rail end is provided with shaft coupling, the shaft coupling passes through T-type
Transmission case is connect with motor.Wheelbase adjusts primarily to adapting to the experiment of the different motor tricycle of wheel base, has logical
A set of experimental facilities is crossed to achieve the purpose that a variety of vehicle tests.
Further：Electric-control system is by a central control machine, a display, a printer, 8 pressure sensors, 4
Platform motor, an electric clutch, a rotary speed torque sensor, a frequency converter, the pressure sensor are that setting is adding
The pressure sensor of the base end of loading system, the rotary speed torque sensor are that back roll position is arranged in the main transmission
Rotary speed torque sensor between motor and T-type transmission case, the pressure sensor and rotary speed torque sensor pass through line
Road is connect with the central control machine, and the central control machine is connect with display.The structure is mainly that central control machine passes through
Acquisition to tach signal can accurately calculate the angular speed of kinematic system and speed of accompanying each other.
Advantageous effect
The utility model has the beneficial effects that：The utility model, which uses wheelbase adjustment system, is realizing different wheelbases just
Motor tricycle is tested, while the motorcycle that loading system can adapt under different road conditions is arranged and tests.It is all that measurement can be covered
The motor tricycle of type；It is realized simultaneously to the accurate of motorcycle sport inertia using the output of Frequency Converter Control Motor torque
Simulation.Improve accuracy of measurement；The utility model is realized and is transported to motor tricycle using differential mechanism connection trailing wheel or so roller
The accurate simulation of dynamic state.
Description of the drawings
Fig. 1 is the utility model brake test device general construction schematic diagram,
Fig. 2 is the structural schematic diagram of the utility model main transmission,
Fig. 3 is wheelbase adjustment system structure diagram,
Fig. 4 is the structural schematic diagram of loading system,
Fig. 5 is the overlooking structure diagram of Fig. 4.
Specific implementation mode
As a kind of embodiment of the utility model, as shown in Fig. 1,2,3,4,5, a kind of motor tricycle retardation test
Device, it is characterised in that：System 6 and chassis 1 and electric-control system are adjusted including main transmission 3 and loading system 4 and wheelbase,
Main transmission has the motor 7 that front roll part 12 connects, and the back roll part 15 for being parallel to front roll is respectively arranged with electricity
Machine 7 is provided with T-type gear-box 10 between the motor and roller, motor, opposite face one end are connected in T-type gear-box one end
It is connected with inertia roll, rotary speed torque sensor 9 is provided between motor and gear-box, the wheelbase adjustment system 6 is installed
In 1 left side of chassis, front roll 12 and motor coupling portion point in the main transmission are mounted in wheelbase adjustment system, preceding
T-type gear-box is provided between roller and back rollWithShaft coupling 8 connects, while being provided with trapezoidal scalable transmission shaft, preceding
Back roll both sides are respectively arranged with the auxiliary cylinder 20 in loading system, and rotating speed is provided on the transmission parts of the main transmission
Pressure sensor 24 on torque sensor 9 and loading system is connect with electric-control system, the main transmission and add
Loading system and wheelbase adjustment system are installed on chassis, and 5 be the chassis for installing loading system in figure, and 2 be support main transmission
The holder of system is provided with several bearing blocks in this structure, mainly support roller either motor or inertia roll and its
The support assorted support with its both sides that its needs is supported in both sides；It is additionally provided with several T-type gear-boxes simultaneously, just
In carrying out rotation transmission.Movement of the motor tricycle on road is simulated with the kinematic system of testing stand.It is transported by testing
The operation characteristic of dynamic system obtains the movenent performance of motor tricycle.The utility model uses wheelbase adjustment system and realizes
The motor tricycle test of different wheelbases also uses the analog form of mechanical inertia power-up inertia, while using load system
System, thus it is possible to vary pressure of the motorcycle on roller realizes a set of test to test situation of the motorcycle under different road conditions
Equipment can cover the test measured under all types of motor tricycles and different road conditions；Frequency Converter Control motor is used simultaneously
Torque output realizes the accurate simulation to motorcycle sport inertia.Improve accuracy of measurement；The utility model uses differential mechanism
Trailing wheel or so roller is connected, the accurate simulation to motor tricycle motion state is realized.
Further：As shown in Fig. 2, main transmission makes three by preceding shaft portion, hind axle part and intermediate transmission part
It is grouped as；Preceding shaft portion is connect by a motor 7, the motor with shaft coupling, the shaft coupling and the rotating speed torque sensing
Device 9 connects, and rotary speed torque sensor 9 is rotatablely connected with T-type gear-box 10, and T-type gear-box is connect with front roll 12, and front roll is another
One end is rotatablely connected with electric clutch 13, and inertia roll 14 is connected in the electric clutch other side；Back roll part is by a left side
Right symmetrically two parts are made, and per part, by a motor 7 and connection, there are one rotary speed torque sensor 9 and rotating speed torque sensings
T-type gear-box, each trailing wheel roller of device connection be connected with one inertia roll of electric clutch box, wherein at roller both ends and
Motor side and inertia roll are provided at both ends with bearing block 11, and shaft coupling 8 is respectively connected with T-type gear-box connecting pin；Wherein left and right
Two half parts are connected by a differential mechanism；Intermediate transmission part is by 11,2 a trapezoidal scalable transmission shaft, bearing block T
Type gear-box, 3 shaft couplings form, and the T-type gearbox drive between two rollers of one of T-type gear-box and back roll connects
It connects, T-type gear-box is connect with another T-type gear-box again, the latter T-type gear-box and the T-type gear on front roll part
Case is sequentially connected, and trapezoidal scalable transmission is provided between the latter T-type gear-box and the connection of front roll part T gear-boxes
Axis.The road surface that this structure is rolled by a front-wheel roller and two trailing wheel rollers come simulating vehicle front and back wheel when driving.With centre
Front and back roller is linked as an entirety by running part.Left and right roller in trailing wheel part is chained up by differential mechanism, is realized
Differential when rear wheel movement.The roller of overall operation, globality when simulation motor tricycle road is run.Use main transmission
The rotary inertia of system come simulate motor tricycle operation when movement inertia.Inertia roll by the access of electric clutch,
To realize the simulation to main transmission rotary inertia.In the test of braking ability, motor is realized by the control of controller
Accurate adjustment to main transmission rotary inertia.It has been achieved and has accurately simulated positive three with the motion state of main transmission
Motion state of the wheeled motorcycle on road.
Further：Such as 4, shown in 5, loading system is by 22,3 two auxiliary cylinders 20, the secondary guide rail of two supporting rod 21, two T
7,4, motor, 8, one, the shaft coupling pedestal of pressure sensor 24,6 of type transmission case 10, one constitutes 23, and two supporting rod is in
Z-shaped intersect it is hinged after, upper end installs two auxiliary cylinders by axis respectively and is located at front and back roller both sides, and lower end is located at peace
On pedestal upper rail, the guide rail can slide on pedestal, and motor is additionally provided on pedestal, and the motor passes through shaft coupling
Section and T-type transmission case are connect with the guide rail on pedestal, and the pedestal lower end is provided with pressure sensor, the pressure sensor
It is connect with electric-control system by circuit.Since each roller side needs auxiliary cylinder, it is required for being arranged three roller both sides
Auxiliary cylinder, therefore the corresponding setting of roller and strut, pressure sensor be separately positioned on pedestal carry out transmit lifting by
The pressure arrived adapts to the experiment under different road conditions to adjusting pressure and friction coefficient of the bike wheel to roller with this
Purpose, the lifting mechanism of this structure composition realize the purpose of kinematic system load load, pass through pressure sensor and computer
The accurate measurement of load load is realized in control.
Further：As shown in figure 3, wheelbase adjusts system by two secondary 18,3, the guide rail motors 7, one of T-type transmission case 10, one
A pedestal composition and 4 shaft couplings form, and floor 19 is slidably equipped on the guide rail, on pedestal before setting installation
The holder 16 of the bearing block at roller both ends, and the holder of T-type transmission case and inertia roll is installed, rail end is provided with connection
Joint, the shaft coupling are connect by T-type transmission case with motor, in the T-type transmission case being coaxially disposed positioned at back roll and preceding rolling
Trapezoidal scalable transmission shaft is additionally provided between the T-type transmission case of cylinder connection, described trapezoidal scalable transmission shaft one end is passed with T-type
Dynamic case connection, the other end are connect with bearing block, and bearing block is connected by axis with the T-type transmission case that shaft coupling is connect with front roll,
There is the connection of rotation axis 17 between T-type transmission case.This structure is that motor drives floor movements by T-type transmission case and guide rail, adjusts
The distance between front and back wheel roller in whole main transmission realizes that the braking performance test of the motor tricycle of different wheelbases needs
It wants, you can to adapt to the test of the motor tricycle of different wheelbases by a set of equipment, saved debugging, testing time, carried
High testing efficiency.
Further：Electric-control system is by a central control machine, a display, a printer, 8 pressure sensors, 4
Platform motor, an electric clutch, a rotary speed torque sensor, a frequency converter, the pressure sensor are that setting is adding
The pressure sensor of the base end of loading system, the rotary speed torque sensor are that back roll position is arranged in the main transmission
Rotary speed torque sensor between motor and T-type transmission case, the pressure sensor and rotary speed torque sensor pass through line
Road is connect with the central control machine, and the central control machine is connect with display.This structure is by central control machine to pressure
The acquisition judgement of sensor signal is adjusted loading system by loading system motor the load information of kinematic system,
Realize the accurate load to kinematic system.Central control machine is by the acquisition to torque signal, by frequency converter to motor torque
Adjustment, realize to the accurate simulation of motorcycle inertia.Central control machine by the acquisition to tach signal, can standard go to calculate
Go out the angular speed of kinematic system and speed of accompanying each other.
The experimental rig can accurately measure motorcycle brake performance, can replace the actual road test of motorcycle brake performance.It should
Utility model solves the danger of motorcycle brake experiment.Relative motion principle is utilized in the device, keep motorcycle and
Under the relative motion state of test roads, the motion state of motorcycle and test roads is converted.Relative to the earth, examination
Road inspection road（Roller）Movement, motorcycle are static.The device by adjusting main transmission the equivalent motorcycle quality of rotary inertia.
When braking test, under the action of same brake force, identical function and effect are maintained, realizes and is rubbed with bench test simulation
Motorcycle road retardation test.The device adjusts system and chassis and electric-control system group by main transmission, loading system and wheelbase
At.In main transmission, three rollers are provided with, place three wheels of motor tricycle respectively.Three rollers simulate road
The Surface of Trial Pavement that road test is tested.Two back rolls for placing trailing wheel are connected with differential mechanism.Pass through T-type tooth between back roll and front roll
Wheel transmission case, transmission shaft connection are integral.A mechanical inertia adjusting apparatus-inertia roller is also provided on each roller
With an electrical inertia regulating device-motor.The rotary inertia of each roller part respectively, can be adjusted accurately, simulate motor tricycle
The center of vehicle.Ensure that simulation system-main transmission and motorcycle road test there are identical function and effect.Loading system
It is made of auxiliary cylinder, strut, guide rail, T-type gear, motor, pressure sensor, shaft coupling, pedestal.Front axle loading system
System is adjusted by pressure sensor with wheelbase to be connected.Rear axle loading system is connected by pressure sensor with chassis.Pressure
Pressure signal is transmitted to computer by sensor.Computer calculates the load that tire is loaded on roller.Computer is according to survey
Examination needs, the position of control servo driver drives motor adjustment auxiliary cylinder.Auxiliary cylinder change in location will change tire axle load and exist
Accurate load of the tire to roller is realized in distribution between roller and auxiliary cylinder.Adjustment tire is to the load of roller to change wheel
The frictional force of tire and roller.The change of frictional force is for the change of frictional force caused by the variation on road surface in simulated road test
Change.Wheelbase adjustment system is made of guide rail, T-type gear, motor, position sensor, pedestal.The slide unit of guide rail and load
System, the preceding shaft portion of main transmission are connected.The pedestal of guide rail is connected with chassis.Motor, T-type gear are mounted on bottom
On disk.Position sensor is mounted on slide unit.Position sensor position signal is passed to computer.Computer according to locational requirement,
Servo driver drives position adjustment motor rotation is commanded, drives slide unit movement, adjustment antero posterior axis wheelbase that roller is made to be in tire
Underface.Electric-control system is by display, printer, industrial personal computer, programmable controller, servo-driver, servo motor, electronics
The compositions such as clutch, speed probe, torque sensor, pressure sensor, position sensor, temperature sensor.Computer is logical
The various information needed for crossing various sensor collection test systems, according to experimental arrangement, system of the tested tissue system to motorcycle
The automatic test of dynamic performance.It is completed rear automatic printing and goes out test report.The utility model is by rotating main transmission
The adjustment of inertia, wheelbase adjust system and are adjusted to the wheelbase of front and back roller, realize the system to the motor tricycle of different size
The accurate test of dynamic performance, realizes motorcycle using advanced Computerized industrial control technology and tests automatically.The structure in addition to
It realizes outside motorcycle brake performance test, moreover it is possible to which to motor tricycle, other all road performances are tentative, such as：Highest vehicle
Speed, accelerating ability, climbing capacity, minimum stabilizing speed etc..The non-rice habitats of the utility model motor tricycle are tested, such as motorcycle
Transmission system resistance, the research and development such as rotary inertia, quality, centroid position test.
Claims (5)
1. a kind of motor tricycle brake test device, it is characterised in that：Including main transmission and loading system, wheelbase tune
Whole system, chassis and electric-control system, main transmission front roll one end connection motor and be connected to the front roll other end
Inertia roll, two back roll one end for being parallel to front roll are connected on one end of T-type gear, the position of T-type gear
It is connected separately with motor and inertia roll in the both ends on straight line, rotating speed torsion is provided between motor and T-type gear-box
Square sensor, the wheelbase adjustment system are mounted on the left of chassis, front roll and motor coupling portion in the main transmission
Divide and be mounted in wheelbase adjustment system, T-type gear-box is provided between front roll and back roll and is connect with shaft coupling, is set simultaneously
It is equipped with trapezoidal scalable transmission shaft, the auxiliary cylinder in loading system, the rotating speed torque are respectively arranged in front and back roller both sides
Sensor and the pressure sensor being arranged in loading system are connect with electric-control system, the main transmission and load
System and wheelbase adjustment system are installed on chassis.
2. motor tricycle brake test device according to claim 1, it is characterised in that：Main transmission is by preceding axle portion
Divide, hind axle part and intermediate transmission part make three parts composition；Preceding shaft portion is connect by a motor with shaft coupling, described
Joint is connect with the rotary speed torque sensor, and rotary speed torque sensor is rotatablely connected with T-type gear-box, and T-type gear-box is with before
Roller connects, and the front roll other end is rotatablely connected with electric clutch, and inertia roll is connected in the electric clutch other side；Afterwards
Roller part is made by symmetrical two parts, there are one rotary speed torque sensor and is turned by a motor and connection per part
T-type gear-box, each trailing wheel roller of fast torque sensor connection are connected with electric clutch and an inertia roll, wherein exist
Roller both ends and motor side and inertia roll both ends are respectively arranged with bearing block, and shaft coupling is respectively connected with T-type gear-box connecting pin
Section；Wherein two half part of back roll or so is connected by a differential mechanism；Intermediate transmission part by a trapezoidal scalable transmission shaft,
One bearing block, 2 T-type gear-boxes, 3 shaft couplings form, between two rollers of one of T-type gear-box and back roll
T-type gearbox drive connects, and T-type gear-box is connect with another T-type gear-box, the latter T-type gear-box and front roll portion
T-type gearbox drive connection on point is provided between the latter T-type gear-box and the connection of front roll part T gear-boxes
The trapezoidal scalable transmission shaft.
3. motor tricycle brake test device according to claim 1, it is characterised in that：Loading system is by two secondary rollings
Cylinder, two supporting rods, two secondary guide rails, 3 T-type transmission cases, a motor, 4 pressure sensors, 6 shaft couplings, a pedestal structure
At after two supporting rod intersects hingedly in X fonts, upper end installs two auxiliary cylinders by axis respectively and is located at roller two
Side, lower end are located on the guide rail of pedestal, and the guide rail can slide on pedestal, and motor is additionally provided on pedestal, institute
It states motor to connect with the guide rail on pedestal by shaft coupling and T-type transmission case, the pedestal lower end is provided with pressure sensor,
The pressure sensor is connect by circuit with electric-control system.
4. motor tricycle brake test device according to claim 1, it is characterised in that：Wheelbase adjusts system by two pairs
Guide rail, 3 T-type transmission cases, a motor, a pedestal composition and 4 shaft coupling compositions, are equipped with slidable on pedestal
The branch of guide rail, the holder of the bearing block at setting installation front roll both ends on pedestal, and installation T-type transmission case and inertia roll
Frame is provided with shaft coupling in rail end, and the shaft coupling is connect by T-type transmission case with motor.
5. motor tricycle brake test device according to claim 1, it is characterised in that：Electric-control system is by a center
Control machine, a display, a printer, 8 pressure sensors, 4 motors, an electric clutch, a rotating speed are turned round
Square sensor, a frequency converter, the pressure sensor are the pressure sensor being arranged in the base end of loading system, described turn
Fast torque sensor is that rotating speed torque of the back roll between motor and T-type transmission case is arranged in the main transmission to pass
Sensor, the pressure sensor and rotary speed torque sensor are connect by circuit with the central control machine, the center control
Machine processed is connect with display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374600.XU CN207798417U (en) | 2017-10-20 | 2017-10-20 | Motor tricycle brake test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374600.XU CN207798417U (en) | 2017-10-20 | 2017-10-20 | Motor tricycle brake test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207798417U true CN207798417U (en) | 2018-08-31 |
Family
ID=63273910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721374600.XU Active CN207798417U (en) | 2017-10-20 | 2017-10-20 | Motor tricycle brake test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207798417U (en) |
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2017
- 2017-10-20 CN CN201721374600.XU patent/CN207798417U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 400000 9 Xinjin Avenue, high tech Zone, Jiulongpo District, Chongqing Patentee after: China Merchants Testing Vehicle Technology Research Institute Co.,Ltd. Address before: 401122 No. 1, Huixing Road, jingkaiyuan, Yubei District, Chongqing Patentee before: CHONGQING VEHICLE TEST & Research Institute |
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| CP03 | Change of name, title or address |