CN208760611U - A kind of underground railway track detection vehicle - Google Patents
A kind of underground railway track detection vehicle Download PDFInfo
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- CN208760611U CN208760611U CN201821001019.8U CN201821001019U CN208760611U CN 208760611 U CN208760611 U CN 208760611U CN 201821001019 U CN201821001019 U CN 201821001019U CN 208760611 U CN208760611 U CN 208760611U
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- car body
- railway track
- underground railway
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Abstract
The utility model relates to a kind of underground railway tracks to detect vehicle, including vehicle frame and car body, the car body is fixed at the top of vehicle frame, car body inner cavity both ends are respectively equipped with preceding driver's cabin and rear driver's cabin, lobby and inspection chamber are respectively equipped between the preceding driver's cabin and rear driver's cabin, bed is installed in the lobby, monitor station is equipped in the inspection chamber, display is installed at the top of the monitor station, the display side is respectively equipped with keyboard and mouse, the monitor station intracavity bottom is equipped with host, the host side is equipped with foot-operated slot, the foot-operated groove top portion is equipped with data storage, and the display, keyboard, mouse passes through data line with data storage and connect with host, structure is simple, design is reasonable, it can be to the smooth degree of track, and interorbital is away from being detected, guarantee the safety of driving, steadily and comfortably, It finds the undesirable place of rail smooth state simultaneously, is promptly studied for a second time courses one has flunked or speed limit measure to take, train is avoided to cause danger.
Description
Technical field
The utility model relates to a kind of underground railway tracks to detect vehicle, belong to track detection vehicle technical field.
Background technique
With flourishing for domestic city field of track traffic, it is necessary to have to the geometric parameter of electric railway into
Row detect simultaneously analyze, and to test line maintenance after dynamic review, comprehensive quality evaluation and fault diagnosis vehicle, to protect
Card railcar is unobstructed and is safely operated, currently, track detection vehicle function is more single, a vehicle only has to orbit parameter
Detection, if to detect parameters, it is necessary to which more vehicles are detected, and when more vehicles are detected, between vehicle
It working independently, not having the long-range control between vehicle, the attached extension detection speed of vehicle is low, and cause detection time long, from
And the working efficiency of detection vehicle is influenced, therefore, it is necessary to be further improved.
Utility model content
The technical problems to be solved in the utility model overcomes existing defect, provides a kind of underground railway track detection vehicle, structure
Simply, design rationally, can smooth degree to track and interorbital away from detecting, guarantee driving it is safe, steady with it is easypro
It is suitable, while according to the record of detection vehicle, it can be found that the undesirable place of rail smooth state, promptly studied for a second time courses one has flunked or speed limit to take
Measure avoids train from causing danger, and by the way that display is arranged, detection vehicle can be observed in real time to the detection data of track, side
Just carry out record can be convenient testing staff and carries out in maintenance gap with to abnormal position artificial detection by the way that lobby is arranged
Rest, regains one's strength of body, and personnel is avoided to carry out weariness working, while can guarantee the distance of maintenance, by the way that GPS locator is arranged,
The position of detection vehicle can be accurately positioned, while the position for detecting that track goes wrong can be positioned, root
It carries out carrying out vehicle speed limit according to the track problem, or arranges promptly to be studied for a second time courses one has flunked, by the way that displacement sensor one is arranged,
It can be by the distance between measurement movable axis, so that the spacing to track measures, by the way that displacement sensor two, energy is arranged
Enough distances to track to detection vehicle measure, and to judge the ride comfort of track, can effectively solve background technique
The problems in.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of underground railway track detection vehicle, including vehicle frame and car body, the car body are fixed at the top of vehicle frame, in the car body
Chamber both ends are respectively equipped with preceding driver's cabin and rear driver's cabin, and lobby and inspection are respectively equipped between the preceding driver's cabin and rear driver's cabin
Room is looked into, bed is installed in the lobby, monitor station is equipped in the inspection chamber, display is installed at the top of the monitor station
Device, the display side are respectively equipped with keyboard and mouse, and the monitor station intracavity bottom is equipped with host, and the host side is set
There is foot-operated slot, the foot-operated groove top portion is equipped with data storage, and the display, keyboard, mouse and data storage are logical
It crosses data line to connect with host, the car body top is equipped with signal box, and the signal box cavity is equipped with remote control apparatus, described
Remote control apparatus side is equipped with signal receiver, and the signal receiver side is equipped with GPS locator, the signal receiver
Be electrically connected with remote control apparatus, the bottom of frame is symmetrically arranged with support frame, and support frame as described above respectively with preceding driver's cabin,
The position of driver's cabin is corresponding afterwards, and support frame as described above bottom is mounted on fixing axle, and the fixing axle inner cavity is symmetrically arranged with movable axis,
And the one end of the movable axis relatively far away from extends through fixed both ends of the shaft, and adjustable spring, institute are connected between the movable axis
Adjustable spring inner cavity is stated equipped with displacement sensor one, and institute's displacement sensors one are fixed on movable axis, the movable axis
One end is equipped with detection wheel, and the detection wheel side is equipped with fixed frame, and the fixed frame inner cavity is equipped with crossbeam, on the crossbeam
Through there is screw rod, the screw rod bottom end is fixedly connected with displacement sensor two, and institute's displacement sensors one and displacement sensor
Two are connect by data line with data storage, and the cross rail top is fixedly connected with nut, and the nut and screw rod
Match, walking mechanism is symmetrically arranged between support frame as described above, and the walking mechanism is fixedly installed in bottom of frame, the vehicle with walking machine
Structure includes traveling wheel, dynamic mount and damping spring, and the traveling wheel is installed on dynamic mount bottom, passes through limit between the traveling wheel
Bar connection processed, the damping spring are fixedly installed in dynamic mount inner cavity, and driving box, and the drive are equipped between the walking mechanism
Dynamic case is fixedly connected with vehicle frame, and the driving box cavity is equipped with engine, and the engine both ends are separately installed with drive shaft, and
The engine is connect by drive shaft with walking mechanism, and the drive shaft is equipped with mobile generator, and the vehicle-mounted power generation
Machine is fixedly connected with driving box, the driving box inner cavity top be equipped with battery, the display, host, signal receiver,
GPS locator, displacement sensor one pass through electric wire with displacement sensor two with mobile generator and connect with battery.
Furthermore, the fixed frame side is equipped with fixing groove, and the fixing groove inner cavity is equipped with measuring scale, the fixation
Slot side is equipped with fixing bolt, and the fixing bolt by screw thread through being connected and fixed groove sidewall.
Furthermore, the measuring scale top and bottom is respectively equipped with limited block and accessory plate, sets on the measuring scale
It is corresponding with detection wheel position in the position of graduation mark, the fixed frame.
Furthermore, support frame as described above bottom is equipped with pilot, and the pilot be set to support frame bottom away from
From the farther away side of walking mechanism.
Furthermore, it is equipped with connection lock above the pilot, the connection lock is fixedly connected with vehicle frame, and described
The connection lock at vehicle frame both ends matches.
Furthermore, the car body two sides are equipped with window, and the window is respectively at preceding driver's cabin, lobby, inspection
It is corresponding with rear driver's cabin to look into room.
Furthermore, the car body top is equipped with air-conditioning, and the air-conditioning is connect with battery by electric wire.
Furthermore, the preceding driver's cabin and rear driver's cabin inner cavity are equipped with station, the station and monitor station
Side is equipped with seat.
The utility model is the utility model has the advantages that a kind of underground railway track detection vehicle involved in the utility model, and structure is simple, design
Rationally, can smooth degree to track and interorbital away from detecting, guarantee safe, steady and comfortable, while the root of driving
According to the record of detection vehicle, it can be found that the undesirable place of rail smooth state, promptly studies for a second time courses one has flunked or speed limit measure, avoid to take
Train is caused danger, and by the way that display is arranged, detection vehicle can be observed in real time to the detection data of track, facilitate and recorded
It can be convenient testing staff by the way that lobby is arranged with to abnormal position artificial detection and rest in maintenance gap, supplement body
Power avoids personnel from carrying out weariness working, while can guarantee the distance of maintenance, can be to detection vehicle by the way that GPS locator is arranged
Position be accurately positioned, while the position for detecting that track goes wrong can be positioned, be occurred according to track
Problem carries out carrying out vehicle speed limit, or arranges promptly to be studied for a second time courses one has flunked, and by the way that displacement sensor one is arranged, can pass through measurement
The distance between movable axis, so that the spacing to track measures, it, can be to track to inspection by the way that displacement sensor two is arranged
The distance of measuring car measures, to judge the ride comfort of track.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.
Fig. 1 is a kind of underground railway track detection car owner's view of the utility model.
Fig. 2 is a kind of underground railway track detection vehicle driving box structure chart of the utility model.
Fig. 3 is a kind of underground railway track detection car test measuring wheel structure chart of the utility model.
Fig. 4 is a kind of underground railway track detection vehicle internal structure chart of the utility model.
Fig. 5 is a kind of underground railway track detection vehicle signal box structure chart of the utility model.
Fig. 6 is a kind of underground railway track detection vehicle monitor station structure chart of the utility model.
Fig. 7 is a kind of underground railway track detection vehicle fixed rack structure figure of the utility model.
Fig. 8 is a kind of underground railway track detection vehicle fixed slot configurations figure of the utility model.
Figure label: 1, vehicle frame；2, car body；3, preceding driver's cabin；4, rear driver's cabin；5, lobby；6, inspection chamber；7, bed
Paving；8, monitor station；9, display；10, keyboard；11, mouse；12, host；13, slot is ridden；14, data storage；15, signal
Case；16, remote control apparatus；17, signal receiver；18, GPS locator；19, support frame；20, fixing axle；21, movable axis；
22, adjustable spring；23, displacement sensor one；24, detection wheel；25, fixed frame；26, crossbeam；27, screw rod；28, displacement sensor
Two；29, nut；30, walking mechanism；31, traveling wheel；32, dynamic mount；33, damping spring；34, driving box；35, engine；
36, drive shaft；37, mobile generator；38, battery；39, fixing groove；40, measuring scale；41, fixing bolt；42, pilot；
43, lock is connected；44, window；45, air-conditioning；46, station.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As Figure 1-Figure 8, a kind of underground railway track detects vehicle, including vehicle frame 1 and car body 2, the car body 2 are fixed at vehicle
1 top of frame, the 2 inner cavity both ends of car body are respectively equipped with preceding driver's cabin 3 and rear driver's cabin 4, the preceding driver's cabin 3 and rear driver's cabin
It is respectively equipped with lobby 5 and inspection chamber 6 between 4, can be convenient testing staff and rest in maintenance gap, regain one's strength of body, keep away
Exempt from personnel and carry out weariness working, while can guarantee the distance of maintenance, bed 7, the inspection chamber are installed in the lobby 5
It is equipped with monitor station 8 in 6, display 9 is installed at the top of the monitor station 8, detection of the detection vehicle to track can be observed in real time
Data facilitate and carry out record with to abnormal position artificial detection, and 9 side of display is respectively equipped with keyboard 10 and mouse 11,
8 intracavity bottom of monitor station is equipped with host 12, and 12 side of host is equipped with foot-operated slot 13, is equipped at the top of the foot-operated slot 13
Data storage 14, and the display 9, keyboard 10, mouse 11 and data storage 14 are connected by data line and host 12
It connects, signal box 15 is equipped at the top of the car body 2,15 inner cavity of signal box is equipped with remote control apparatus 16, the long-range control
16 side of device is equipped with signal receiver 17, and 17 side of signal receiver is equipped with GPS locator 18, can be to detection vehicle
Position is accurately positioned, while can be positioned to the position for detecting that track goes wrong, and is asked according to what track occurred
Topic carries out carrying out vehicle speed limit, or arranges promptly to be studied for a second time courses one has flunked, the signal receiver 17 and 16 electricity of remote control apparatus
Property connection, 1 bottom symmetrical of vehicle frame be equipped with support frame 19, and support frame as described above 19 respectively with preceding driver's cabin 3, rear driver's cabin 4
Position it is corresponding, 19 bottom of support frame as described above is mounted on fixing axle 20, and 20 inner cavity of fixing axle is symmetrically arranged with movable axis 21,
And the one end of the movable axis 21 relatively far away from extends through 20 both ends of fixing axle, is connected with flexible bullet between the movable axis 21
Spring 22,22 inner cavity of adjustable spring are equipped with displacement sensor 1, can by measurement the distance between movable axis 21, thus
The spacing of track is measured, and institute's displacement sensors 1 are fixed on movable axis 21, described 21 one end of movable axis
Detection wheel 24 is installed, 24 side of detection wheel is equipped with fixed frame 25, and 25 inner cavity of fixed frame is equipped with crossbeam 26, described
Through there is screw rod 27 on crossbeam 26,27 bottom end of screw rod is fixedly connected with displacement sensor 2 28, can be to track to detection
The distance of vehicle measures, to judge the ride comfort of track, and institute's displacement sensors 1 and displacement sensor two
28 are connect by data line with data storage 14, and nut 29, and the nut 29 are fixedly connected at the top of the crossbeam 26
It is matched with screw rod 27, walking mechanism 30 is symmetrically arranged between support frame as described above 19, and the walking mechanism 30 is fixedly installed in vehicle
1 bottom of frame, the walking mechanism 30 include traveling wheel 31, dynamic mount 32 and damping spring 33, and the traveling wheel 31, which is installed on, to be subtracted
32 bottom of frame is shaken, is connected between the traveling wheel 31 by limitation bar, the damping spring 33 is fixedly installed in dynamic mount 32
Chamber is equipped with driving box 34 between the walking mechanism 30, and the driving box 34 is fixedly connected with vehicle frame 1, the driving box 34
Inner cavity is equipped with engine 35, and 35 both ends of engine are separately installed with drive shaft 36, and the engine 35 passes through drive shaft
36 connect with walking mechanism 30, and the drive shaft 36 is equipped with mobile generator 37, and the mobile generator 37 and driving box
34 are fixedly connected, 34 inner cavity top of driving box be equipped with battery 38, the display 9, host 12, signal receiver 17,
GPS locator 18, displacement sensor 1 and displacement sensor 2 28 and mobile generator 37 pass through electric wire and battery 38
Connection.
25 side of fixed frame is equipped with fixing groove 39, and 39 inner cavity of fixing groove is equipped with measuring scale 40, the fixing groove
39 sides are equipped with fixing bolt 41, and the fixing bolt 41 by screw thread through being connected and fixed 39 side wall of slot, the measuring scale
40 top and bottoms are respectively equipped with limited block and accessory plate, are set to graduation mark, the position of the fixed frame 25 on the measuring scale 40
It sets corresponding with 24 position of detection wheel, is measured by height of the measuring scale 40 to displacement sensor 2 28, support frame as described above 19
Bottom is equipped with pilot 42, and the pilot 42 is set to the farther away side of 19 distance from bottom walking mechanism of support frame 30,
Connection lock 43 is equipped with above the pilot 42, the connection lock 43 is fixedly connected with vehicle frame 1, and 1 both ends of the vehicle frame
Connection lock 43 matches, and 2 two sides of car body are equipped with window 44, and the window 44 respectively at preceding driver's cabin 3, lobby 5,
Inspection chamber 6 is corresponding with rear driver's cabin 4, air-conditioning 45 is equipped at the top of the car body 2, and the air-conditioning 45 and battery 38 pass through electric wire
Connection, the preceding driver's cabin 3 are equipped with station 46 with rear 4 inner cavity of driver's cabin, and the station 46 is all provided with 8 side of monitor station
There is seat.
Utility model works principle: in detection vehicle driving process, the work of engine 35 provides detection vehicle traveling dynamic
Power, while drive shaft 36 drives mobile generator 37 to work, the distance between 2 28 pairs of movable axis 21 of displacement sensor are surveyed
Amount, to detect to the distance between track, displacement sensor 1 measures the distance between top of the rail and detection vehicle,
To be detected to the flatness of track, by GPS locator 18, detection vehicle is accurately positioned with detection site.
The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper
It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities
Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical
Novel protection scope.
Claims (8)
1. a kind of underground railway track detects vehicle, including vehicle frame (1) and car body (2), which is characterized in that the car body (2) is fixed at
At the top of vehicle frame (1), car body (2) the inner cavity both ends are respectively equipped with preceding driver's cabin (3) and rear driver's cabin (4), the preceding driver's cabin
(3) it is respectively equipped with lobby (5) and inspection chamber (6) between rear driver's cabin (4), bed is installed in the lobby (5)
(7), monitor station (8) are equipped in the inspection chamber (6), display (9), the display is installed at the top of the monitor station (8)
(9) side is respectively equipped with keyboard (10) and mouse (11), and monitor station (8) intracavity bottom is equipped with host (12), the host
(12) side is equipped with foot-operated slot (13), is equipped with data storage (14) at the top of the foot-operated slot (13), and the display (9),
Keyboard (10), mouse (11) are connect by data line with host (12) with data storage (14), are set at the top of the car body (2)
Have signal box (15), signal box (15) inner cavity is equipped with remote control apparatus (16), remote control apparatus (16) side
Equipped with signal receiver (17), signal receiver (17) side is equipped with GPS locator (18), the signal receiver (17)
It is electrically connected with remote control apparatus (16), vehicle frame (1) bottom symmetrical is equipped with support frame (19), and support frame as described above (19)
Corresponding with the position of preceding driver's cabin (3), rear driver's cabin (4) respectively, support frame as described above (19) bottom is mounted on fixing axle (20),
Fixing axle (20) inner cavity is symmetrically arranged with movable axis (21), and the one end of the movable axis (21) relatively far away from extends through admittedly
Dead axle (20) both ends are connected with adjustable spring (22) between the movable axis (21), and adjustable spring (22) inner cavity is equipped with position
Displacement sensor one (23), and institute's displacement sensors one (23) are fixed on movable axis (21), described movable axis (21) one end
It is equipped with detection wheel (24), detection wheel (24) side is equipped with fixed frame (25), and fixed frame (25) inner cavity is equipped with cross
Beam (26), through having screw rod (27) on the crossbeam (26), screw rod (27) bottom end is fixedly connected with displacement sensor two
(28), and institute's displacement sensors one (23) and displacement sensor two (28) are connected by data line and data storage (14)
It connects, is fixedly connected with nut (29) at the top of the crossbeam (26), and the nut (29) is matched with screw rod (27), support frame as described above
(19) it is symmetrically arranged between walking mechanism (30), and the walking mechanism (30) is fixedly installed in vehicle frame (1) bottom, the walking
Mechanism (30) includes that traveling wheel (31), dynamic mount (32) and damping spring (33), the traveling wheel (31) are installed on dynamic mount
(32) bottom, by limitation bar connection between the traveling wheel (31), the damping spring (33) is fixedly installed in dynamic mount
(32) inner cavity is equipped with driving box (34) between the walking mechanism (30), and the driving box (34) and vehicle frame (1) is fixed connects
It connecing, driving box (34) inner cavity is equipped with engine (35), and engine (35) both ends are separately installed with drive shaft (36), and
The engine (35) is connect by drive shaft (36) with walking mechanism (30), and the drive shaft (36) is equipped with mobile generator
(37), and the mobile generator (37) is fixedly connected with driving box (34), and driving box (34) inner cavity top is equipped with electric power storage
Pond (38), the display (9), host (12), signal receiver (17), GPS locator (18), displacement sensor one (23) with
Displacement sensor two (28) is connect by electric wire with battery (38) with mobile generator (37).
2. a kind of underground railway track detects vehicle according to claim 1, it is characterised in that: fixed frame (25) side is equipped with solid
To determine slot (39), fixing groove (39) inner cavity is equipped with measuring scale (40), and fixing groove (39) side is equipped with fixing bolt (41),
And the fixing bolt (41) by screw thread through being connected and fixed slot (39) side wall.
3. a kind of underground railway track detects vehicle according to claim 2, it is characterised in that: measuring scale (40) top and bottom
It is respectively equipped with limited block and accessory plate, is set to graduation mark, the position of the fixed frame (25) and detection on the measuring scale (40)
It is corresponding to take turns (24) position.
4. a kind of underground railway track detects vehicle according to claim 1, it is characterised in that: support frame as described above (19) bottom is equipped with
Pilot (42), and the pilot (42) is set to support frame (19) distance from bottom walking mechanism (30) farther away side.
5. a kind of underground railway track detects vehicle according to claim 4, it is characterised in that: be equipped with above the pilot (42)
It connects lock (43), the connection lock (43) is fixedly connected with vehicle frame (1), and connection lock (43) phase at the vehicle frame (1) both ends
Match.
6. a kind of underground railway track detects vehicle according to claim 1, it is characterised in that: car body (2) two sides are all provided with fenestrate
Family (44), and the window (44) is corresponding with rear driver's cabin (4) respectively at preceding driver's cabin (3), lobby (5), inspection chamber (6).
7. a kind of underground railway track detects vehicle according to claim 1, it is characterised in that: be equipped with air-conditioning at the top of the car body (2)
(45), and the air-conditioning (45) is connect with battery (38) by electric wire.
8. a kind of underground railway track detects vehicle according to claim 1, it is characterised in that: the preceding driver's cabin (3) and rear driving
Room (4) inner cavity is equipped with station (46), and the station (46) and monitor station (8) side are equipped with seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001019.8U CN208760611U (en) | 2018-06-27 | 2018-06-27 | A kind of underground railway track detection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821001019.8U CN208760611U (en) | 2018-06-27 | 2018-06-27 | A kind of underground railway track detection vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208760611U true CN208760611U (en) | 2019-04-19 |
Family
ID=66127961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821001019.8U Active CN208760611U (en) | 2018-06-27 | 2018-06-27 | A kind of underground railway track detection vehicle |
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| Country | Link |
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| CN (1) | CN208760611U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227895A (en) * | 2019-06-17 | 2019-09-13 | 陈进花 | A kind of railway inspection trolley |
| CN110606016A (en) * | 2019-10-15 | 2019-12-24 | 江苏保丰集团公司 | Agricultural planting's inspection car |
| CN112918514A (en) * | 2021-02-24 | 2021-06-08 | 重庆泰新鲜智能科技有限公司 | Driving type train power transmission device for rail transit rescue |
| CN113635326A (en) * | 2021-08-31 | 2021-11-12 | 中铁第四勘察设计院集团有限公司 | Full geometric dimension inspection robot of track |
| CN113734247A (en) * | 2021-10-13 | 2021-12-03 | 郎方 | Trouble shooting device for urban rail signal system |
| WO2022062474A1 (en) * | 2020-09-27 | 2022-03-31 | 京东科技信息技术有限公司 | Rail apparatus and inspection method |
-
2018
- 2018-06-27 CN CN201821001019.8U patent/CN208760611U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110227895A (en) * | 2019-06-17 | 2019-09-13 | 陈进花 | A kind of railway inspection trolley |
| CN110227895B (en) * | 2019-06-17 | 2021-06-08 | 广东华能机电有限公司 | Railway maintenance trolley |
| CN110606016A (en) * | 2019-10-15 | 2019-12-24 | 江苏保丰集团公司 | Agricultural planting's inspection car |
| WO2022062474A1 (en) * | 2020-09-27 | 2022-03-31 | 京东科技信息技术有限公司 | Rail apparatus and inspection method |
| CN112918514A (en) * | 2021-02-24 | 2021-06-08 | 重庆泰新鲜智能科技有限公司 | Driving type train power transmission device for rail transit rescue |
| CN112918514B (en) * | 2021-02-24 | 2024-05-28 | 青岛詹海轨道交通科技发展有限公司 | Driving type train power transmission device for rail transit rescue |
| CN113635326A (en) * | 2021-08-31 | 2021-11-12 | 中铁第四勘察设计院集团有限公司 | Full geometric dimension inspection robot of track |
| CN113734247A (en) * | 2021-10-13 | 2021-12-03 | 郎方 | Trouble shooting device for urban rail signal system |
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