CN212529626U - Rail-mounted electrically-driven vehicle system - Google Patents
Rail-mounted electrically-driven vehicle system Download PDFInfo
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- CN212529626U CN212529626U CN202021124476.3U CN202021124476U CN212529626U CN 212529626 U CN212529626 U CN 212529626U CN 202021124476 U CN202021124476 U CN 202021124476U CN 212529626 U CN212529626 U CN 212529626U
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Abstract
The utility model relates to a rail-mounted electric drive vehicle system, which comprises a U-shaped channel and an electric drive vehicle arranged in the U-shaped channel; the bottom of the U-shaped channel is provided with a wheel roadbed; the electric driving vehicle comprises a carriage body, a chassis, a front driving wheel and a rear driving wheel, wherein the front driving wheel and the rear driving wheel are respectively connected to the front side and the rear side of the carriage body; the power supply line row is arranged on two sides of the top of the U-shaped channel, the power pickup cables are arranged on two sides of the carriage body and are in contact with the power supply line row, and power is provided for the electric driving vehicle. The rail-mounted electric drive vehicle system of the utility model utilizes the electric drive wheel to lead the vehicle to stably run, can replace the gasoline vehicle on the road surface, reduces the consumption of gasoline and diesel oil, and achieves the effects of energy conservation, emission reduction and foreign exchange conservation; the U-shaped channel can be built on the air or embedded into the ground for construction and laying, so that the traffic pressure of the road surface is saved.
Description
Technical Field
The utility model relates to a rail mounted electricity drives vehicle system belongs to track traffic technical field.
Background
Due to the popularization of private cars, at present, traffic congestion in various large cities is serious, people spend hours on the road when driving on duty and go off duty, and a large amount of tail gas emission and air pollution are generated.
Through search, chinese patent document CN101314326A discloses a power supply system for an urban rail electric car and an urban rail electric car, where the power supply system includes: the system comprises a whole-course intermittent conductor rail and a ground receiving transponder laid on a driving route, a power supply cable arranged below the ground surface, a power switch circuit and a front end computer installed in a road control room, a central computer installed in a central control room and the like. A power switch device is arranged between the power supply cable and each conductive single rail of the whole-course intermittent conductive rail; the on-off of each power switch device is controlled by a respective ground receiving transponder and a control circuit controlled by a front-end computer in a logical AND mode; each front-end computer is controlled by the central computer and obtains the on-off state of each power switch device through each ground receiving transponder. The rail trolley bus comprises two vehicle-mounted control generators arranged on the trolley bus and two collector shoes. The vehicle-mounted control generator respectively controls the on-off of the ground receiving transponder. The power receiving shoes play a role in ensuring continuous power receiving in the locomotive. Chinese patent document CN206437003U discloses an overhead double-track tramcar passenger conveying system, which is composed of pier studs, plate beams, steel rails, tramcars, platforms, rain sheds, and devices for preventing the middle parts of the steel rails from bending downwards. The electric car inherits the advantage of no pollution of the traditional electric car; the electric car does not occupy the automobile lane, so that the congestion of the street can be greatly relieved; the electric car runs in the air above the street, the car can safely pass on the street, and the driver has no psychological pressure; the electric car runs along an independent special track in the air, is not limited by red light when passing through an intersection, is not influenced even if the electric car is blocked on a lower street, and can thoroughly solve the problem of difficult trip in a large city; the electric car cannot rub or collide with other vehicles, isolation belts, various pillars, road shoulders and pedestrians in the running process, and is very safe; the electric cars can pass through the streets and the lanes, and stations can be densely arranged and are far more convenient than subways; the cost of the system is far lower than that of a subway.
Based on the reasons, the invention provides a brand-new solution, a public transportation system between rail transit and urban ground public transportation is built, a light-weight U-shaped transportation channel is adopted, electric passenger vehicles run in the U-shaped transportation channel, and the light-weight U-shaped transportation channel and the light-weight electric vehicles pass through a cell or an office building in an overhead mode and can conveniently stop in the cell or the office building by virtue of an elevator, so that passengers can conveniently get on and off duty, and the passengers can arrive at destinations at one station, thereby facilitating the travel of people.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a rail mounted electricity drives vehicle system utilizes the U type track that provides, and electricity drives the car and moves in the cell type track, can realize quick, convenient, direct current efficiency.
The technical scheme of the utility model as follows:
a rail-mounted electric drive vehicle system comprises a U-shaped channel and an electric drive vehicle arranged in the U-shaped channel;
the bottom of the U-shaped channel is provided with a wheel roadbed; the electric driving vehicle comprises a carriage body, a chassis, a front driving wheel and a rear driving wheel, wherein the front driving wheel and the rear driving wheel are respectively connected to the front side and the rear side of the carriage body;
the power supply line row is arranged on two sides of the top of the U-shaped channel, the power pickup cables are arranged on two sides of the carriage body and are in contact with the power supply line row, and power is provided for the electric driving vehicle.
Preferably, the front drive wheels and the rear drive wheels are both electrically driven wheels.
Preferably, the electric driving wheel comprises a motor, a wheel, an elastic fork arm, a mounting plate and an electric steering mechanism; the motor sets up in the wheel center and links firmly with the wheel, and the elasticity yoke is connected at the both ends of motor output shaft, mounting panel one side and railway carriage or compartment body fixed connection, and electric steering mechanism sets up on the mounting panel and is connected with elasticity yoke top.
Preferably, the electric driving wheel comprises a wheel, a motor, a wheel shaft, a mounting plate, an elastic fork arm and an electric steering mechanism; the output shaft of two motors is connected respectively at the both ends of shaft, and the motor setting links firmly at the wheel center and with the wheel, and the bottom and the shaft of elasticity yoke link firmly, mounting panel one side and railway carriage or compartment body fixed connection, and electric steering mechanism sets up on the mounting panel and is connected with elasticity yoke top.
Preferably, the motor is an external rotor motor.
Preferably, the housing of the motor is connected with the wheel through a key.
Preferably, the bottom of the U-shaped channel is provided with a drainage groove. The advantage of this design is, water drainage tank can prevent U type passageway bottom ponding, washs U type passageway after, sewage can follow water drainage tank and flow.
Preferably, eight spring hydraulic support guide wheels are symmetrically arranged on two sides of the carriage body and are in contact with two side walls of the U-shaped channel. The advantage of this design is that the spring hydraulically supports the guide wheels to prevent the car from rolling during operation.
Preferably, the spring hydraulic support guide wheel comprises a hydraulic support fixing seat, a hydraulic cylinder, a spring, a guide wheel shaft and a roller wheel, wherein a cylinder barrel of the hydraulic cylinder is fixed on the hydraulic support fixing seat, the hydraulic support fixing seat is installed on the side wall of the compartment body through a bolt, the spring is sleeved on a piston rod of the hydraulic cylinder, the head of the piston rod is fixedly connected with the guide wheel shaft, and the guide wheel shaft is in key connection with the center of the roller wheel.
Preferably, a storage battery and a control system are arranged in the carriage body. The advantage of this design is, through the internal control system in railway carriage or compartment, can control the running state of drive wheel to control the advance of electric drive car, stop, accelerate, slow down, brake, energy recuperation, simultaneously through electric drive car in the operation process, charge while walking, unnecessary electric quantity can be stored in the battery, when external power source can not the during operation, accessible battery power supply does not influence the operation of electric drive car.
Preferably, an air conditioner and an air purification system are arranged in the compartment body.
Preferably, left and right balancers are arranged on the front side and the rear side inside the compartment body, and each left and right balancer comprises a driving motor, a base, a screw rod and a counterweight sliding block; the lead screw sets up on the base, lead screw one end and driving motor's output shaft, and counter weight slider screwed connection is on the lead screw. The advantage of this design is that the car can be rebalanced when the number of people in the car is uneven.
Preferably, a front balancer and a rear balancer are arranged on the left side and the right side inside the compartment body, and each front balancer and each rear balancer comprise a driving motor, a base, a screw rod and a counterweight sliding block; the lead screw sets up on the base, lead screw one end and driving motor's output shaft, and counter weight slider screwed connection is on the lead screw.
Preferably, electric car doors are arranged on two sides of the car body and are connected with the control system. The advantage of this design is, sets up electric automobile railway carriage or compartment door in railway carriage or compartment body both sides, makes things convenient for the passenger to get on or off the bus.
Preferably, at least 1/3 parts of the carriage body are positioned in the U-shaped channel.
Preferably, the control system comprises a PLC and a wireless communication module, and data transmission can be performed with the scheduling center through the wireless communication module.
Preferably, the front side and the rear side of the carriage body are provided with limiting arms. The design has the advantages that the limiting arm can prevent vehicles from colliding with each other, and if the individual electric drive vehicle fails and cannot advance, the electric drive vehicle at the front end and the rear end is pushed to a station for maintenance.
Preferably, the top of the carriage body is provided with a sucker. The advantage of this design is, when the station, makes things convenient for the station gantry crane to drive the car to hang and leave U type passageway to the electricity, can let the back car pass through fast to make things convenient for the passenger to load and unload from leisurely.
Preferably, the U-shaped channel is arranged on an overhead. The advantage of this design lies in, builds U type passageway on the overhead, can realize utilizing built on stilts passing district or light-weighted U type transport corridor of office building and lightweight electric vehicle, can be convenient berth at district or office building with the help of the elevator for the convenient getting on and off duty of passenger, and can realize that the passenger arrives the destination in a station, make things convenient for personnel's trip.
The beneficial effects of the utility model reside in that:
1. the rail-mounted electric drive vehicle system of the utility model utilizes the electric drive wheel to lead the vehicle to stably run, can replace the gasoline vehicle on the road surface, reduces the consumption of gasoline and diesel oil, and achieves the effects of energy conservation, emission reduction and foreign exchange conservation; the U-shaped channel can be built on the air or embedded into the ground for construction and laying, so that the traffic pressure of the road surface is saved.
2. The utility model discloses rail mounted electricity drives vehicle system can adopt individualized operation circuit, according to special APP software automatic combination syntropy passenger, makes things convenient for passenger's one-stop to reach the destination, reduces the passenger and changes station number, and energy saving and emission reduction takes and experiences well.
Drawings
FIG. 1 is a schematic diagram of a track-type electric drive vehicle system;
FIG. 2 is a side view of a track-type electric drive vehicle system;
FIG. 3 is a schematic view of the electric drive wheel;
FIG. 4 is a schematic view of the balancer;
FIG. 5 is a schematic diagram of a spring hydraulically supporting guide wheel;
FIG. 6 is a schematic view of a structure of a station yard;
wherein: 1-left power pick-up cable, 2-left power supply line row, 3-storage battery, 4-front driving wheel, 5-water draining groove, 6-seat, 7-air conditioner and air purification system, 8-left and right balancer, 9-front and back balancer, 10-right power pick-up cable, 11-right power supply line row, 12-spring hydraulic support guide wheel, 1201-roller, 1202-spring, 1203-hydraulic support fixing seat, 1204-guide wheel shaft, 1205-hydraulic cylinder, 1206-bolt, 13-control system (including vehicle front and back drive, vehicle balance, air conditioner management, power supply management, positioning, data transmission), 14-wheel roadbed, 15-electric steering mechanism, 16-mounting plate, 17-wheel, 18-compartment door, 19-mounting plate, 20-electric steering mechanism, 21-wheel, 22-wheel road base floating road section, 23-elastic fork arm, 24-elastic fork arm, 25-tire, 26-wheel hub, 27-permanent magnet, 28-stator winding, 29-rotor, 30-motor controller, 31-brake, 32-bearing, 33-driving motor, 34-screw rod, 35-counterweight sliding block, 36-stereo garage, 37-elevator, 38-gantry crane driving motor, 39-gantry crane magnetic chuck, 40-overhead U-shaped channel, 41-gantry crane and 42-wheel shaft.
Detailed Description
The present invention will be further described, but not limited to, by the following examples in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 and fig. 2, the present embodiment provides a track-type electric-driven vehicle system, which includes a U-shaped channel and an electric-driven vehicle disposed in the U-shaped channel;
the bottom of the U-shaped channel is provided with a wheel roadbed 14; the electric driving vehicle comprises a carriage body, a chassis, a front driving wheel and a rear driving wheel, wherein the front driving wheel and the rear driving wheel are respectively connected to the front side and the rear side of the carriage body, the carriage body is arranged on the chassis, and the front driving wheel and the rear driving wheel are arranged on a wheel roadbed 14;
u type passageway top both sides are provided with the power supply line row, and left power supply line row 2 and right power supply line row 11 promptly, and railway carriage or compartment body both sides are provided with pick-up cable, and pick-up cable 1 and right pick-up cable 10 promptly on a left side, pick-up cable and power supply line row contact provide electric power for the electricity drives car.
Specifically, the front drive wheels and the rear drive wheels are both electrically driven wheels. Taking the front driving wheel as an example, the electric driving wheel comprises a motor, a wheel 17, an elastic fork arm 23, a mounting plate 16 and an electric steering mechanism 15; the motor sets up in wheel 17 center and links firmly with wheel 17, and elastic yoke 23 is connected at the both ends of motor output shaft, mounting panel 16 one side and railway carriage or compartment body fixed connection, and electric steering mechanism 15 sets up on mounting panel 16 and is connected with elastic yoke 23 top.
The motor adopts an outer rotor motor, and the shell of the motor is connected with the wheel 17 through keys to drive the wheel to rotate. The electric power steering mechanism adopts a conventional technology, a steering motor is installed on the installation plate 16 by using a bolt, and an output shaft of the steering motor passes through a screw thread hole of the installation plate 16 through a bearing and then is connected with the elastic fork arm 23.
Eight hydraulic support spring hydraulic support guide wheels 12 are symmetrically arranged on two sides of the carriage body, four spring hydraulic support guide wheels 12 are arranged on the upper portion, the lower portion, the front portion and the rear portion of each side of the carriage body, and the spring hydraulic support guide wheels 12 are in contact with two side walls of the U-shaped channel. The spring hydraulic support guide wheel can prevent the carriage body from tilting and swinging left and right in the operation process, and can avoid collision of the vehicle on the U-shaped transportation channel during operation and personal injury of passengers caused by collision.
The specific structure of the spring hydraulic support guide wheel 12 is shown in fig. 5, each spring hydraulic support guide wheel 12 comprises a hydraulic support fixing seat 1203, a hydraulic cylinder 1205, a spring 1202, a guide wheel shaft 1204 and a roller 1201, wherein a cylinder barrel of the hydraulic cylinder 1205 is fixed on the hydraulic support fixing seat 1203, the hydraulic support fixing seat 1203 is installed on a side wall of a carriage body through a bolt 1206, the spring 1202 is sleeved on a piston rod of the hydraulic cylinder 1205, the head of the piston rod is fixedly connected with the guide wheel shaft 1204, and the guide wheel shaft 1204 is connected with the center of the roller 1201 through a key.
The spring hydraulic support guide wheel can enable a vehicle to keep running along the middle line of the U-shaped channel, so that the vehicle runs smoothly, accidents can be avoided when the vehicle runs at a high speed, and the spring hydraulic support guide wheel can be retracted to reserve a moving space for the vehicle when the vehicle turns at a low speed, climbs, enters a station, descends a slope and enters a warehouse, so that the vehicle can move conveniently.
The storage battery 3 and the control system 13 are arranged in the carriage body. Through the internal control system 13 of railway carriage or compartment, can control the running state of drive wheel to the advancing, stopping, acceleration, speed reduction, brake, the energy recuperation of control electric drive car, simultaneously through electric drive car in the operation process, walk while charging, unnecessary electric quantity can be stored in battery 3, when external power source can not the during operation, accessible battery 3 supplies power, does not influence the operation of electric drive car. The control system comprises a PLC and a wireless communication module, and data transmission can be carried out between the control system and the dispatching center through the wireless communication module.
An air conditioning and air purifying system 7 is arranged in the carriage body, and the fresh air and the temperature and humidity in the carriage can be kept. And electric car doors 18 are arranged on two sides of the car body, and the electric car doors 18 are connected with the control system 13. The two sides of the carriage body are provided with electric carriage doors, so that passengers can get on or off the train conveniently.
At least 1/3 parts of the carriage body are positioned in the U-shaped channel, so that the running stability of the electric drive vehicle in the U-shaped channel is ensured. The bottom of the U-shaped channel is provided with a drainage channel 5. The water drainage tank can prevent water from accumulating at the bottom of the U-shaped channel, and sewage can flow out of the water drainage tank after the U-shaped channel is cleaned.
In this embodiment, carry out power transmission through the power supply line row at U type passageway top, give the electric drive car with the electric energy transmission, the motor, battery, air conditioner and the air purification system of the wheel of electricity drive are connected and are carried out control operation by control system, and the circuit that its is connected adopts conventional technique can realize. And redundant electric energy is stored in the storage battery while the electric drive vehicle is driven to move forwards.
Electric vehicle in U type transport corridor can utilize APP software reservation vehicle, can be convenient find with the passenger of station on the same road for vehicle operation benefit maximize, the vehicle only need stop several stations just can be fully loaded, avoid present bus station stop problem of inefficiency, electric vehicle also can realize unmanned driving, because the vehicle is in independent U type transport corridor operation, do not have idle miscellaneous people and do not have factor interference such as traffic lights, can realize real meaningful unmanned driving.
Example 2:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: in this embodiment, the electricity drives the wheel and adopts the double round structure, and a wheel road bed or two independent wheel road beds can be laid to U type passageway bottom, and the electricity drives the wheel and places on the wheel road bed.
As shown in fig. 3, the electric drive wheel comprises a wheel, a motor, a wheel shaft, a mounting plate, an elastic fork arm and an electric power steering mechanism; the output shaft of two motors is connected respectively at the both ends of shaft, and the motor setting is at the wheel center and links firmly with the wheel, and the bottom and the shaft 42 of elasticity yoke 23 link firmly, and 16 one sides of mounting panel and railway carriage or compartment body fixed connection, electronic steering mechanism 15 sets up on the mounting panel and is connected with elasticity yoke 23 top.
Example 3:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: in this embodiment, the front side of the railway carriage or compartment body adopts the electric wheel that drives of single wheel structure, and the rear side adopts the electric wheel that drives of double round structure, perhaps the railway carriage or compartment body front side adopts the electric wheel that drives of double round structure, and the rear side adopts the electric wheel that drives of single round structure.
Example 4:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: the front and back sides of the carriage body are provided with limit arms (not shown in the figure). The limiting arm can prevent vehicles from colliding with each other, and if individual electric driving vehicles fail to advance, the electric driving vehicles at the front end and the rear end are pushed to a station for maintenance.
Example 5:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: when carrying passengers, the number and positions of passengers in the carriage are not fixed, and in order to ensure the stability of the carriage in the running process, a left balancer 8, a right balancer 8 and a front balancer 9 are arranged in the carriage.
As shown in fig. 4, left and right balancers are arranged at the front and rear sides inside the carriage body, and each of the left and right balancers comprises a driving motor 33, a base, a screw rod 34 and a counterweight sliding block 35; the screw rod 34 is arranged on the base, one end of the screw rod 34 is connected with an output shaft of the driving motor 33, and the counterweight sliding block 35 is connected to the screw rod 34 through screws. When the number of people in the carriage is uneven, the carriage can be rebalanced.
The left side and the right side in the compartment body are provided with a front balancer and a rear balancer, the front balancer and the rear balancer are completely the same as the left balancer and the right balancer, and the front balancer and the rear balancer comprise a driving motor, a base, a screw rod and a counterweight sliding block; the lead screw sets up on the base, lead screw one end and driving motor's output shaft, and counter weight slider screwed connection is on the lead screw.
Example 6:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: the top of the carriage body is provided with a sucker. When the station is used, the station gantry crane 41 is convenient for the electrically-driven vehicle to lift away from the U-shaped channel, so that a rear vehicle can pass through the U-shaped channel quickly, and passengers can get on and off the U-shaped channel easily.
In order to improve the running efficiency of the electric drive, a special stereo garage can be arranged at a station position and used for parking an unloaded vehicle. Passengers can enter the empty-load vehicle in advance, and the gantry crane is used for directly hoisting the vehicle and placing the vehicle into the U-shaped channel, so that the operation efficiency is improved.
The stereo garage can recover the empty vehicles running on the way to avoid the energy consumption generated during the operation of the empty vehicles, and can also send independent passenger vehicles to passengers who reserve the vehicles through the network APP nearby, thereby greatly facilitating the traveling of people.
Example 7:
a track-bound electric drive vehicle system constructed as described in embodiment 1 except that: the U-channel is arranged on an overhead, i.e. the U-channel shown in fig. 6 is built on an overhead. The U-shaped channel is built on the elevated frame, the overhead passing of a small district or an office light-weight U-shaped transportation channel and a light-weight electric vehicle can be realized, the passenger can conveniently stop at the district or the office with the help of the elevator, the passenger can conveniently go to and fro, the passenger can arrive at the destination at one station, and the passenger can conveniently go out.
Because the vehicle adopts the mode of traveling while charging, can avoid the vehicle to concentrate the charging resource that the charging caused and lack the phenomenon, vehicle U type transport passage can realize the built on stilts mode construction of walking in the middle of urban road district office building, avoided the detour of ground public transport vehicle along urban road, can shorten the distance of going on a journey, also make things convenient for kindergarten and middle and primary school students to go to school and go to school, because be independent vehicle delivery passenger, the passenger can realize arriving one station from starting to arriving the station, the vexation that the special place brought has been removed from to need family's accompany. Due to the independent transportation system, passengers can arrive at the airport hospital school according to the designed time, and the time uncertainty caused by urban traffic disorder is avoided.
Claims (10)
1. A rail-mounted electric drive vehicle system is characterized by comprising a U-shaped channel and an electric drive vehicle arranged in the U-shaped channel;
the bottom of the U-shaped channel is provided with a wheel roadbed; the electric driving vehicle comprises a carriage body, a chassis, a front driving wheel and a rear driving wheel, wherein the front driving wheel and the rear driving wheel are respectively connected to the front side and the rear side of the carriage body;
the power supply line row is arranged on two sides of the top of the U-shaped channel, the power pickup cables are arranged on two sides of the carriage body and are in contact with the power supply line row, and power is provided for the electric driving vehicle.
2. The track-type electric drive vehicle system of claim 1, wherein the front drive wheels and the rear drive wheels are electric drive wheels.
3. The rail electric drive vehicle system of claim 2, wherein the electric drive wheel includes an electric motor, a wheel, a resilient yoke, a mounting plate, and an electric power steering mechanism; the motor sets up in the wheel center and links firmly with the wheel, and the elasticity yoke is connected at the both ends of motor output shaft, mounting panel one side and railway carriage or compartment body fixed connection, and electric steering mechanism sets up on the mounting panel and is connected with elasticity yoke top.
4. The track-type electric drive vehicle system of claim 2, wherein the electric drive wheel includes a wheel, a motor, an axle, a mounting plate, a resilient yoke, and an electric power steering mechanism; the output shaft of two motors is connected respectively at the both ends of shaft, and the motor setting links firmly at the wheel center and with the wheel, and the bottom and the shaft of elasticity yoke link firmly, mounting panel one side and railway carriage or compartment body fixed connection, and electric steering mechanism sets up on the mounting panel and is connected with elasticity yoke top.
5. The track-type electric drive vehicle system as set forth in claim 1, wherein eight spring hydraulic support guide wheels are symmetrically disposed on both sides of the carriage, and the spring hydraulic support guide wheels are in contact with both side walls of the U-shaped channel.
6. The track-type electric drive vehicle system as set forth in claim 1, wherein a battery and a control system are disposed within the compartment.
7. The track-type electric drive vehicle system as claimed in claim 1, wherein left and right balancers are provided at front and rear sides of the interior of the compartment, the left and right balancers including a drive motor, a base, a lead screw, and a weight slider; the lead screw sets up on the base, lead screw one end and driving motor's output shaft, and counter weight slider screwed connection is on the lead screw.
8. The track-type electric drive vehicle system as claimed in claim 1, wherein a front and rear balancer is disposed at left and right sides of the interior of the compartment, the front and rear balancer including a driving motor, a base, a lead screw, and a weight slider; the lead screw sets up on the base, lead screw one end and driving motor's output shaft, and counter weight slider screwed connection is on the lead screw.
9. The track-type electric drive vehicle system as set forth in claim 1, wherein the carriage is provided with a pair of stop arms on front and rear sides thereof.
10. The track-type electric drive vehicle system as set forth in claim 1, wherein said roof is provided with suction cups.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021124476.3U CN212529626U (en) | 2020-06-17 | 2020-06-17 | Rail-mounted electrically-driven vehicle system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021124476.3U CN212529626U (en) | 2020-06-17 | 2020-06-17 | Rail-mounted electrically-driven vehicle system |
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| CN212529626U true CN212529626U (en) | 2021-02-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027956A (en) * | 2021-04-13 | 2021-06-25 | 中国铁道科学研究院集团有限公司 | Electric brake cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027956A (en) * | 2021-04-13 | 2021-06-25 | 中国铁道科学研究院集团有限公司 | Electric brake cylinder |
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