CN110395280A - Run-through channel floor system, run-through channel and track train - Google Patents
Run-through channel floor system, run-through channel and track train Download PDFInfo
- Publication number
- CN110395280A CN110395280A CN201910749735.7A CN201910749735A CN110395280A CN 110395280 A CN110395280 A CN 110395280A CN 201910749735 A CN201910749735 A CN 201910749735A CN 110395280 A CN110395280 A CN 110395280A
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- Prior art keywords
- component
- cab apron
- run
- pedal
- bolster
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/043—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures connections between superstructure sub-units
- B61D17/045—The sub-units being construction modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/10—Floors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/20—Communication passages between coaches; Adaptation of coach ends therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides a kind of run-through channel floor system, comprising: cab apron component；Pedal assembly, the pedal assembly are engaged with the cab apron component opposite face；Link assembly, the link assembly are connected with the pedal assembly；Bolster component, the bolster component are connected with the link assembly；Removable component, the removable component connect the bolster component and the cab apron component.Run-through channel floor system provided by the present invention, can be realized and be rapidly assembled and disassembled, convenient for the attended operation of compartment.The present invention also provides a kind of run-through channel and track trains.
Description
Technical field
The invention belongs to train floor system regions more particularly to a kind of run-through channel floor systems.
Background technique
Run-through channel is the important component of rail vehicle, for connecting two adjacent compartments, meets passenger safety and passes through and stop
It the functions such as stays, and passenger is made to feel safe and comfortably.Run-through channel floor system is used to connect the floor in adjacent two compartment, makes train
Compartment can be run under different operating conditions, it is ensured that passenger being capable of safety.
206427003 U of patent document CN discloses a kind of cab apron assembly of train run-through channel and passes through with its train
Channel, cab apron assembly include horizontally disposed cab apron body, the pedal of cab apron body front and rear sides are set to, for connecting adjacent two
The link assembly in compartment is saved, pedal is for connecting compartment vehicle end and supporting cab apron body, arrangement before and after link assembly, link assembly
Rear and front end is adapted to compartment vehicle end, be provided with the positioning mechanism being connected with the bottom-plate body on link assembly.
The cab apron assembly of train run-through channel disclosed in above-mentioned patent document, installation and removal process is cumbersome, bothersome laborious,
It is unfavorable for the attended operation of compartment.
Summary of the invention
The cumbersome technical problem of process is mounted and dismounted for the cab apron assembly of existing train run-through channel, the present invention provides
A kind of run-through channel floor system, can be realized being rapidly assembled and disassembled for cab apron component, convenient for the attended operation of compartment.For
Realization above-mentioned purpose, present invention employs following technical solution:
A kind of run-through channel floor system, comprising:
Cab apron component；
Pedal assembly, the pedal assembly are engaged with the cab apron component opposite face；
Link assembly, the link assembly are connected with the pedal assembly；
Bolster component, the bolster component are connected with the link assembly；
Removable component, the removable component connect the bolster component and the cab apron component.
Further, the removable component includes:
Mechanism for assembling-disassembling, the mechanism for assembling-disassembling include:
Moving member, the moving member and bolster component relative movement connect；
Control piece, the control piece and the cab apron component, which relatively rotate, to be connected, the control piece and the moving member phase
Contact.
Matching piece, the matching piece are connected with the cab apron component, and the matching piece is provided with matching hole, the movement
Part and the matching hole are in mating connection.
Further, the removable component further include:
Elastic component, one end of the elastic component are abutted against with the moving member；
Locating part, the locating part are connected with the bolster component, the other end of the elastic component and the locating part
It abuts against.
Further, the bolster component includes bolster ontology, and the bolster ontology is provided with limiting unit, the limiting unit limit
Make the movement of the moving member.
Further, the link assembly is provided with
Rotating shaft, the link assembly are relatively rotated by the rotating shaft and the bolster component and are connected,
Shifting axle, the link assembly are connected by the shifting axle and bolster component relative movement.
Further, the cab apron component further includes wear part, and the wear part is located at the cab apron component and the pedal
Between component, the cab apron component is in contact by the wear part with the pedal assembly.
Further, the cab apron component includes:
First cab apron, first cab apron are engaged with the pedal assembly opposite face；
Second cab apron, second cab apron are engaged with the pedal assembly opposite face；
First hinge, first cab apron are relatively rotated by first hinge and second cab apron and are connected.
Further, the pedal assembly includes:
First pedal, first pedal are engaged with the cab apron component opposite face；
Second pedal, second pedal are connected with car body；
Second hinge, first pedal are relatively rotated by second hinge and second pedal and are connected.
It further, further include supporting element, the supporting element connects first pedal and second pedal.
A kind of run-through channel, including any of the above-described run-through channel floor system.
A kind of track train, including above-mentioned run-through channel.
Compared with prior art, the beneficial effects of the present invention are:
1. run-through channel floor system provided by the present invention, be provided with removable component, removable component connect bolster component and
Cab apron component realizes the installation and removal of bolster component and cab apron component by operation removable component, to realize cab apron component
With being rapidly assembled and disassembled for pedal assembly, convenient for the attended operation of compartment.
Connect 2. run-through channel floor system provided by the present invention, link assembly and bolster component are relatively rotated by rotating shaft
It connects, link assembly and bolster component are relatively moved by shifting axle and connected, i.e., bolster component forms single-point support to link assembly
And straight support, the kinetic stability of link assembly is improved, the support performance of link assembly is improved, with prior art phase
Than reducing the quantity of link assembly, simplifying the structure of run-through channel floor system, improve stability and safety.
Detailed description of the invention
Fig. 1 is the overall structure diagram one of run-through channel floor system provided by the present embodiment；
Fig. 2 is the configuration schematic diagram of run-through channel floor system in Fig. 1；
Fig. 3 is the overall structure diagram two of run-through channel floor system in Fig. 2；
Fig. 4 is the overall structure diagram of cab apron component in Fig. 2；
Fig. 5 is the overall structure diagram one of pedal assembly in Fig. 2；
Fig. 6 is the overall structure diagram two of pedal assembly in Fig. 2；
Fig. 7 is the overall schematic of bolster component in Fig. 2；
Fig. 8 is the overall structure diagram of removable component in Fig. 2.
Appended drawing reference is specifically described:
1, cab apron component；11, the first cab apron；12, the second cab apron；13, the first hinge；14, wear part；
2, pedal assembly；21, the first pedal；22, the second pedal；23, the second hinge；24, supporting element；25, the first connection
Part；
3, link assembly；31, con-rod only；32, the second connector；33, rotating shaft；34, shifting axle；
4, bolster component；41, bolster ontology；411, rotary hole；412, shifting chute；413, limiting unit；
5, removable component；51, mechanism for assembling-disassembling；511, moving member；512, elastic component；513, locating part；514, control piece；
5141, control terminal；515, fixing piece；52, matching piece；521, fixation hole；
100, run-through channel floor system.
Specific embodiment
The technical solution in the specific embodiment of the invention in detail, completely describe below in conjunction with attached drawing.Obviously,
Described embodiment is only the part specific embodiment of the total technical solution of the present invention, and not all embodiment.
Based on total design of the invention, those of ordinary skill in the art's every other embodiment obtained all falls within guarantor of the present invention
The range of shield.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be to be connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The cumbersome technical problem of process is mounted and dismounted for the cab apron assembly of existing train run-through channel, the present invention provides
A kind of run-through channel floor system, can be realized and be rapidly assembled and disassembled, convenient for the attended operation of compartment.Below with reference to specific
Embodiment illustrates technical solution of the present invention.
A kind of run-through channel floor system, comprising:
Cab apron component 1；
Pedal assembly 2, pedal assembly 2 are engaged with 1 opposite face of cab apron component；
Link assembly 3, link assembly 3 are connected with pedal assembly 2；
Bolster component 4, bolster component 4 are connected with link assembly 3；
Removable component 5, removable component 5 connect bolster component 4 and cab apron component 1.
Run-through channel floor system 100 provided by the present embodiment, is provided with removable component 5, and removable component 5 connects bolster group
Part 4 and cab apron component 1 realize the installation and removal of bolster component 4 and cab apron component 1 by operation removable component 5, to realize
Cab apron component 1 and pedal assembly 2 are rapidly assembled and disassembled, convenient for the attended operation of compartment.
Specifically, run-through channel floor system 100 provided by the present embodiment includes cab apron group with reference to figures 1 through attached drawing 3
Part 1, pedal assembly 2, link assembly 3, bolster component 4 and removable component 5.Cab apron component 1 and pedal assembly 2 are matched with respect to face contact
It closes, pedal assembly 2 plays the role of support, the upper surface mutual cooperation shape of pedal assembly 2 and cab apron component 1 to cab apron component 1
At plane, passes through convenient for passenger and stop.Cab apron component 1 is connected by link assembly 3 with bolster component 4 with pedal assembly 2,
Pedal assembly 1 is connected with two car bodies respectively, and link assembly 3 and bolster component 4 are that cab apron component 1 and pedal assembly 2 provide
The effect of firm support.Simultaneously when track train is when different operating conditions runs, such as when the operating conditions such as turning, upward slope, car body
Pedal assembly 1 is driven to move, pedal assembly 1 drives link assembly 3 to carry out stretching motion, is connected between two car bodies to adjust
The distance between pedal assembly 1, further such that run-through channel floor system 100 can satisfy the curve motion requirement of train.It tears open
Arrangement 5 connects bolster component 4 and cab apron component 1, for realizing being rapidly assembled and disassembled for bolster component 4 and cab apron component 1.
More specifically, with reference to attached drawing 4, cab apron component 1 provided by the present embodiment and pedal assembly 2 are with respect to face contact
Cooperation.Cab apron component 1 includes the first cab apron 11, the second cab apron 12 and the first hinge 13, and the first cab apron 11 and the second cab apron 12 are logical
It crossing the first hinge 13 and relatively rotates connection, when enabling to train curve motion, cab apron component 1 has better applicability, when
When cab apron component 1 and pedal assembly 2 generate relative motion and then collide, since the first cab apron 11 and the second cab apron 12 generate
It relatively rotates, can reduce the impact force that pedal assembly 2 generates cab apron component 1, so that it is disconnected to effectively prevent cab apron component 1 to occur
It splits, can be improved the service life of run-through channel floor system 100.Cab apron component 1 provided by the present embodiment further includes wear part 14, mill
Consumable component 14 is between cab apron component 1 and pedal assembly 2, and wear part 14 is connected with the first cab apron 11 and the second cab apron 12, more
For specifically, wear part 14 is connected to the marginal position of the first cab apron 11 and the second cab apron 12, the first cab apron 11 and second are crossed
Plate 12 is in contact by wear part 14 with pedal assembly 2, is closely connect so that being capable of forming between cab apron component 1 and pedal assembly 2
Touching, while wear part 14 also functions to damping, wear-resisting effect.
With reference to attached drawing 5 and attached drawing 6, pedal assembly 2 provided by the present embodiment includes the first pedal 21,22 and of the second pedal
Second hinge 23.First pedal 21 is engaged with 1 opposite face of cab apron component, the upper surface of the first pedal 21 and cab apron component 1
Plane is formed, passes through convenient for passenger and stops.Second pedal 22 is connected with car body.First pedal 21 by the second hinge 23 with
Second pedal 22 relatively rotates connection, and when enabling to train curve motion, pedal assembly 2 has better applicability, works as vehicle
When body and pedal assembly 2 generate relative motion and then collide, since the first pedal 21 and the second pedal 22 generate opposite turn
It is dynamic, it can reduce the impact force that car body generates pedal assembly 2, so that pedal assembly 2 be effectively prevent to be broken, improve perforation
The service life of road floor system 100.In order to further strengthen the stability of pedal assembly 2, pedal assembly 2 provided by the present embodiment
It further include supporting element 24, supporting element 24 connects the first pedal 21 and the second pedal 22.
With reference to attached drawing 3, link assembly 3 connects pedal assembly 2 and bolster component 4, specifically, link assembly 3 includes connecting
Bar body 31, con-rod only 31 are connected with the second connector 32, and the first connector 25 is provided on the second pedal 22, and first connects
Fitting 25 and the second connector 32 are bolted.Con-rod only 31 is to be made of a plurality of connecting rod, between a plurality of connecting rod mutually
Hingedly, formed diamond shape pantograph linkage, be able to carry out it is flexible so that the distance between pedal assembly 2 and bolster component 4
It can stretch and shorten, to be adapted to the requirement such as the spacing of train when different operating conditions are run.
Link assembly 3 is provided with rotating shaft 33 and shifting axle 34, and rotating shaft 33 is set to the center of con-rod only 31,
Con-rod only 31 is relatively rotated by rotating shaft 33 and bolster component 4 and is connected, and con-rod only 31 can be made relative to bolster component 4
It relatively rotates.Shifting axle 34 is set to the hinged place of con-rod only 31, and shifting axle 34 and the relative movement of bolster component 4 connect.When
When two car body distances of connection change, the position of pedal assembly 2 changes therewith, and pedal assembly 2 drives link assembly 3
Stretching motion occurs, so that con-rod only 31 relatively rotates with respect to bolster component 4, while being arranged on con-rod only 31
Shifting axle 34 relatively moved on the telescopic direction perpendicular to link assembly 3 with bolster component 4.Above-mentioned motion process
In, bolster component 4 is that link assembly 3 provides a support and line support, the i.e. support of rotation axis 33 and the offer of shifting axle 34, is improved
The stability of 3 stretching motion of link assembly, to improve the stabilization of run-through channel floor system 100 provided by the present embodiment
Property and safety.Existing run-through channel floor system generally includes at least two link assemblies, compared with the prior art, this implementation
Run-through channel floor system 100 provided by example reduces the quantity of link assembly, simplifies the knot of run-through channel floor system 100
Structure improves stability and safety, convenient for the miniaturization of track train.
With reference to attached drawing 3 and attached drawing 7, bolster component 4 is open column shape structure, and bolster component 4 connects link assembly 3 and cab apron
Component 1 provides a supporting role for link assembly 3 and cab apron component 1.Bolster component 4 includes bolster ontology 41, on bolster ontology 41
It is provided with rotary hole 411, rotating shaft 33 is connected on rotary hole 411, and link assembly 3 and bolster ontology 41 are turned relatively
It is dynamic.Be additionally provided with shifting chute 412 on bolster ontology 41, shifting axle 34 and shifting chute 412 is mobile cooperates so that link assembly 3 with
The relative movement connection of bolster component 4.Bolster ontology 41 is that link assembly 3 provides a support and line support, improves link assembly 3 and stretches
Contract the stationarity moved.The end of bolster ontology 41 is additionally provided with limiting unit 413, for limiting the movement of removable component 5.
In order to realize the fast assembling-disassembling of cab apron component 1 and pedal assembly 2, link assembly 3, convenient for the company of railway train body
It connects, run-through channel floor system 100 provided by the present embodiment further includes removable component 5, and removable component 5 connects 4 He of bolster component
Cab apron component 1.Removable component 5 includes mechanism for assembling-disassembling 51 and matching piece 52, and mechanism for assembling-disassembling 51 is connected with bolster ontology 41, is cooperated
Part 52 is connected with the first cab apron 11, and mechanism for assembling-disassembling 51 is connected with matching piece 52, realizes installation operation；Mechanism for assembling-disassembling 51 and match
The connection of component 52 disconnects, and realizes disassembling section.Specifically, mechanism for assembling-disassembling 51 includes moving member 511 and control with reference to attached drawing 6
Part 514, moving member 511 and the relative movement of bolster component 4 connect, and moving member 511 is located at the inside of bolster ontology 41, moving member
511 can be mobile in the inside of bolster ontology 41, and limiting unit 413 is used for the shift position of limits compression aspect 511.Control piece 514 with
Cab apron component 1 relatively rotates connection, specifically, mechanism for assembling-disassembling 51 provided by the present embodiment further includes fixing piece 515, it is fixed
Part 515 is fixedly connected on cab apron component 1, and control piece 514 and fixing piece 515 are relatively rotated and connected, and control piece 514 is provided with control
End 5141 processed controls the rotation of control piece 514 by rotation control terminal 5141.Fluted, control piece is opened up on moving member 511
514 protrude into groove, and control piece 514 is in contact with moving member 511, can operate control piece 514 by control terminal 5141 and carry out
Rotation, control piece 514 push moving member 511 to move in bolster ontology 41, and then control moving member 511 in bolster ontology 41
Stretching and retraction.In order to further increase the stability when installation of run-through channel floor provided by the present embodiment, mechanism for assembling-disassembling
51 further include elastic component 512 and locating part 513.Elastic component 512 is located at the inside of bolster ontology 41, one end of elastic component 512 with
Moving member 511 abuts against.Locating part 513 is connected with bolster ontology 41, and locating part 513 passes through bolster ontology 41, elastic component 512
The other end abutted against with locating part 513, elastic component 512 is in compressive state, provides thrust for moving member 511, can be improved
The positional stability of moving member 511 generates displacement, to influence run-through channel floor system 100 when preventing moving member 511 from stretching out
Stability.Matching piece 52 is connected with cab apron component 1, and fixation hole 521 is provided on matching piece 52, when moving member 511 stretches out, Gu
Determine hole 521 to match with moving member 511.
The present embodiment also provides a kind of run-through channel, including run-through channel floor system 100.
The present embodiment also provides a kind of track train, including above-mentioned run-through channel.
For convenient for the understanding to the present embodiment technical solution, below to run-through channel floor system provided by the present embodiment
The operating process of 100 fast assembling-disassemblings is described further:
With reference to attached drawing 3, attached drawing 4 and attached drawing 8, when disassembling section, control terminal 5141 can be manually rotated, so that 514 phase of control piece
Fixing piece 515 is rotated counterclockwise, control piece 514 pushes moving member 511 to move retraction inside bolster ontology 41, elasticity
Part 512, which is pressurized, to bounce back, and moving member 511 and the fixation hole 521 of matching piece 52 are separated, so that bolster component 4 and 1 phase of cab apron component
Separation, complete disassembling section；When installation operation, control terminal 5141 is reversely rotated manually, so that 514 opposed fixed member of control piece
515 rotate clockwise, and control piece 514 pushes moving member 511 to move stretching inside bolster ontology 41, and elastic component 512 is to movement
Part 511 provides thrust, and moving member 511 is matched with the fixation hole 521 of matching piece 52, so that bolster component 4 and 1 phase of cab apron component
Installation operation is completed in connection.
Claims (11)
1. a kind of run-through channel floor system characterized by comprising
Cab apron component；
Pedal assembly, the pedal assembly are engaged with the cab apron component opposite face；
Link assembly, the link assembly are connected with the pedal assembly；
Bolster component, the bolster component are connected with the link assembly；
Removable component, the removable component connect the bolster component and the cab apron component.
2. run-through channel floor system according to claim 1, which is characterized in that the removable component includes:
Mechanism for assembling-disassembling, the mechanism for assembling-disassembling include:
Moving member, the moving member and bolster component relative movement connect；
Control piece, the control piece and the cab apron component, which relatively rotate, to be connected, and the control piece is in contact with the moving member.
Matching piece, the matching piece are connected with the cab apron component, and the matching piece is provided with matching hole, the moving member with
The matching hole is in mating connection.
3. run-through channel floor system according to claim 2, which is characterized in that the removable component further include:
Elastic component, one end of the elastic component are abutted against with the moving member；
Locating part, the locating part are connected with the bolster component, and the other end of the elastic component offsets with the locating part
It connects.
4. run-through channel floor system according to claim 2, which is characterized in that the bolster component includes bolster ontology,
The bolster ontology is provided with limiting unit, and the limiting unit limits the movement of the moving member.
5. run-through channel floor system according to any one of claims 1 to 4, which is characterized in that the link assembly setting
Have:
Rotating shaft, the link assembly are relatively rotated by the rotating shaft and the bolster component and are connected,
Shifting axle, the link assembly are connected by the shifting axle and bolster component relative movement.
6. run-through channel floor system according to claim 1, which is characterized in that the cab apron component further includes wear part,
The wear part between the cab apron component and the pedal assembly, the cab apron component by the wear part with it is described
Pedal assembly is in contact.
7. run-through channel floor system according to claim 1, which is characterized in that the cab apron component includes:
First cab apron, first cab apron are engaged with the pedal assembly opposite face；
Second cab apron, second cab apron are engaged with the pedal assembly opposite face；
First hinge, first cab apron are relatively rotated by first hinge and second cab apron and are connected.
8. run-through channel floor system according to claim 1, which is characterized in that the pedal assembly includes:
First pedal, first pedal are engaged with the cab apron component opposite face；
Second pedal, second pedal are connected with car body；
Second hinge, first pedal are relatively rotated by second hinge and second pedal and are connected.
9. run-through channel floor system according to claim 8, which is characterized in that further include supporting element, the supporting element connects
Connect first pedal and second pedal.
10. a kind of run-through channel, which is characterized in that including run-through channel floor system according to any one of claims 1 to 9.
11. a kind of track train, which is characterized in that including run-through channel described in any one of claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749735.7A CN110395280A (en) | 2019-08-14 | 2019-08-14 | Run-through channel floor system, run-through channel and track train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910749735.7A CN110395280A (en) | 2019-08-14 | 2019-08-14 | Run-through channel floor system, run-through channel and track train |
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| CN110395280A true CN110395280A (en) | 2019-11-01 |
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|---|---|---|---|
| CN201910749735.7A Pending CN110395280A (en) | 2019-08-14 | 2019-08-14 | Run-through channel floor system, run-through channel and track train |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026810A (en) * | 2020-08-14 | 2020-12-04 | 中车青岛四方机车车辆股份有限公司 | Through-passage pedal structure, through-passage structure and railway vehicle |
| CN112026810B (en) * | 2020-08-14 | 2022-03-25 | 中车青岛四方机车车辆股份有限公司 | Through-passage pedal structure, through-passage structure and railway vehicle |
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Application publication date: 20191101 |
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