CN213007442U - Bogie, rail vehicle and rail transit system - Google Patents
Bogie, rail vehicle and rail transit system Download PDFInfo
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- CN213007442U CN213007442U CN202021720943.9U CN202021720943U CN213007442U CN 213007442 U CN213007442 U CN 213007442U CN 202021720943 U CN202021720943 U CN 202021720943U CN 213007442 U CN213007442 U CN 213007442U
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- guide
- guide wheel
- bogie
- wheel mechanism
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Abstract
The utility model provides a bogie, a rail vehicle and a rail transit system, wherein the bogie comprises a guide frame, a guide wheel mechanism and a driving component, the guide wheel mechanism comprises a guide wheel and a wheel shaft, and the guide wheel is arranged at one end of the wheel shaft; the driving assembly is arranged on the guide frame, the guide wheel mechanism is connected with the driving assembly, and the driving assembly is used for driving the guide wheel mechanism to rotate around a straight line in the horizontal direction so as to enable the guide wheel mechanism to be switched between a working position and a storage position; in the working position, the guide wheels cooperate with the track beam to guide the rail vehicle; in the storage position, the bottom surface of the guide wheel is positioned above the bottom surface of the traveling wheel. The bogie can be suitable for track beams and roads and is good in applicability.
Description
Technical Field
The utility model belongs to the technical field of the rail transit technique and specifically relates to a bogie, rail vehicle and rail transit system are related to.
Background
In the related art, the guide wheels of the rail vehicle are directly and rigidly fixed on the bogie frame of the rail vehicle, so that the bogie of the rail vehicle has poor applicability and cannot be suitable for different rails.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a bogie, bogie can satisfy rail vehicle and travel on track roof beam and road surface simultaneously.
The utility model discloses still provide a rail vehicle who has above-mentioned bogie.
The utility model also provides a track traffic system of having above-mentioned rail vehicle.
According to the utility model discloses the bogie of first aspect includes: a guide frame; the guide wheel mechanism comprises a guide wheel and a wheel shaft, and the guide wheel is arranged at one end of the wheel shaft; the driving assembly is mounted on the guide frame, the guide wheel mechanism is connected with the driving assembly, and the driving assembly is used for driving the guide wheel mechanism to rotate around a straight line in the horizontal direction so as to enable the guide wheel mechanism to be switched between a working position and a storage position; in the working position, the guide wheels cooperate with the track beam to guide the rail vehicle; in the storage position, the bottom surface of the guide wheel is positioned above the bottom surface of the walking wheel.
According to the utility model discloses a bogie, through drive assembly drive leading wheel mechanism around the linear rotation of horizontal direction to make leading wheel mechanism change between operating position and storage position, thereby make the bogie can satisfy rail vehicle and can enough go on the track roof beam, also can go on highway road surface, convenient to use has good suitability.
In some examples of the invention, the drive assembly comprises a lock for locking the guide wheel mechanism in the working position or in the storage position.
In some examples of the present invention, the drive assembly includes: a motor; the driving gear is in transmission connection with an output shaft of the motor; the driven gear is meshed with the driving gear, and the guide wheel mechanism is connected to the driven gear so as to enable the guide wheel mechanism to rotate around the axis of the driving gear.
In some examples, the guide wheel mechanism is in the operating position, the axial direction of the axle extends in a vertical direction.
In some examples, the guide frame includes four guide cantilevers, the guide cantilever includes link and installation end, four the guide cantilever the link links to each other in proper order along circumference, four the guide cantilever the installation end orientation is kept away from the direction at the center of guide frame extends.
In some examples of the present invention, the driving assembly is mounted to the mounting ends of the four guide cantilevers, and the driving assembly is connected to the guide wheel mechanism; two adjacent guide wheel mechanisms in the four guide wheel mechanisms form a group, the other two guide wheel mechanisms form another group, and from the working position to the accommodating position, the two guide wheel mechanisms in each group rotate towards the direction close to each other.
In some examples of the present invention, the bogie further comprises a road guide wheel, the road guide wheel is connected to the guide frame, and a bottom surface of the road guide wheel is located below a bottom surface of the running wheel.
In some examples of the invention, the outside of the road guide wheel is wrapped with a buffer layer.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic partial structural view 1 of a bogie according to an embodiment of the present invention, wherein the guide wheel mechanism is in the operating position.
Fig. 2 is a partial schematic structural view of a bogie according to an embodiment of the present invention, in which the guide wheel mechanism is in the operating position.
Fig. 3 is a partial schematic structural view 3 of a bogie according to an embodiment of the present invention, wherein the guide wheel mechanism is in the storage position.
Fig. 4 is a partial schematic structural view 4 of a bogie according to an embodiment of the present invention, wherein the guide wheel mechanism is in the storage position.
Fig. 5 is a schematic view of a bogie and track beam combination according to an embodiment of the present invention, in which the guide wheel mechanism is in the working position 1.
Fig. 6 is a schematic diagram of a bogie and track beam combination according to an embodiment of the invention, shown in fig. 2, with the guide wheel mechanism in the operating position.
Fig. 7 is a schematic view of a bogie and road fit 1 according to an embodiment of the present invention, wherein the guide wheel mechanism is in the stowed position.
Fig. 8 is a schematic diagram of a truck-to-road fit 2 according to an embodiment of the present invention, wherein the guide wheel mechanism is in the stowed position.
Fig. 9 is a schematic diagram of a rail transit system according to an embodiment of the present invention.
Reference numerals:
10. a guide frame 10; 11. a guide boom 11; 111. a connection end 111; 112. a mounting end 112; 12. the center of the guide frame; 13. a reinforcing plate;
20. a drive assembly; 21. a motor; 22. a driving gear; 23. a driven gear; 24. a locking member;
30. a guide wheel mechanism; 31. a guide wheel; 32. a wheel axle;
40. a road guide wheel; 41. a buffer layer;
200. a running wheel;
1000. a bogie;
2000. a track beam; 2100. an anti-rollover flange;
3000. a highway; 3100. a guide groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.
A bogie 1000 according to an embodiment of the present invention is described below with reference to fig. 1-9.
In the figure, the x direction refers to the front-back direction, namely the front-back direction of the rail vehicle, namely the direction in which the rail vehicle travels, the y direction refers to the left-right direction, namely the left-right direction of the rail vehicle, and the z direction refers to the vertical direction, namely the up-down direction of the rail vehicle.
It will be appreciated that the bogie 1000 is for use on a railway vehicle, the railway vehicle being adapted to travel along a track beam 2000, the track beam 2000 may be an internally guided track or an externally guided track or the like. For example, as shown in fig. 5, the track beam 2000 is an inner guide type track, the track beam 2000 defines a passage, a side surface of the passage may have a guide surface, and the bogie 1000 may cooperate with the guide surface to realize guidance; for another example, the track beam 2000 may be a straddle monorail, the outer surface of the track beam 2000 may have a guide surface, and the bogie 1000 may cooperate with the guide surface to realize guidance.
As shown in fig. 1, the embodiment of the present invention provides a bogie 1000, including guide frame 10, guide wheel mechanism 30 and driving assembly 20, guide wheel mechanism 30 includes guide wheel 31 and wheel axle 32, guide wheel 31 locates the one end of wheel axle 32, driving assembly 20 installs in guide frame 10, guide wheel mechanism 30 is connected with driving assembly 20, driving assembly 20 is used for driving guide wheel mechanism 30 and rotates around a straight line of horizontal direction, so that guide wheel mechanism 30 switches between the operating position and the storage position, in the operating position, guide wheel 31 cooperates with track roof beam 2000 in order to lead rail vehicle, in the storage position, the bottom surface of guide wheel 31 is located the top of the bottom surface of walking wheel 200.
It can be understood that a horizontal straight line may be a straight line in the front-back direction or a straight line in the left-right direction, the driving assembly 20 drives the guide wheel mechanism 30 to rotate around the horizontal straight line, that is, the guide wheel mechanism 30 can be switched between the working position and the storage position, when the guide wheel mechanism 30 is in the working position, the guide wheel 31 cooperates with the track beam 2000 to guide the rail vehicle, so that the rail vehicle can run on the track beam 2000, when the guide wheel mechanism 30 is in the storage position, the bottom surface of the guide wheel 31 is located above the bottom surface of the running wheel 200, that is, the lowest point of the guide wheel 31 is located above the bottom surface of the running wheel 200, so that the rail vehicle can run on a road surface of a road 3000, and the use is convenient and has good applicability.
In addition, when the rail vehicle needs to be overhauled, debugged and the like, the rail vehicle generally needs to be lifted, and for the rail beam 2000 provided with the anti-rollover flange 2100, if the rail vehicle is directly lifted, the guide wheel 31 can be abutted against the anti-rollover flange 2100, at this time, the guide wheel mechanism 30 can be driven by the driving assembly 20 to rotate around a straight line in the horizontal direction, and the guide wheel mechanism 30 is driven to rotate to the accommodating position, so that the guide wheel 31 can be smoothly and upwards separated from the rail beam 2000, therefore, the rail vehicle can be smoothly lifted without detaching the guide wheel 31, the dismounting times of the guide wheel 31 are effectively reduced, the overhauling and debugging efficiencies of the rail vehicle are improved, and the operation is convenient, wherein the lifting of the rail vehicle can be realized by a crane or a jack.
So, drive guide wheel mechanism 30 through drive assembly 20 and rotate around the straight line of horizontal direction and can realize that bogie 1000 can enough be applicable to track roof beam 2000, also can be applicable to highway 3000, also made things convenient for rail vehicle's maintenance and debugging simultaneously, simple structure, convenient operation, bogie 1000's suitability is good.
In some embodiments of the present invention, the drive assembly 20 includes a lock 24, the lock 24 being configured to lock the guide wheel mechanism 30 in the operating position or the storage position.
It will be appreciated that the locking member 24 may lock the guide wheel mechanism 30 in the operative position when the guide wheel mechanism 30 is in the operative position and the locking member 24 may lock the guide wheel mechanism 30 in the stowed position when the guide wheel mechanism 30 is in the stowed position. In this manner, the guide wheel mechanism 30 can be stably placed in the operating position or the storage position, and the bogie 1000 can be stably operated.
It should be noted that the locking member 24 may be two fixing pins as shown in fig. 1, and both the two fixing pins are fixedly connected to the guide frame 10, and when the guide wheel mechanism 30 rotates to the working position, one of the two fixing pins can be inserted into a corresponding pin hole on the guide wheel mechanism 30, so that the guide wheel mechanism 30 is locked to the working position, and when the guide wheel mechanism 30 rotates to the storage position, the other fixing pin can be inserted into a corresponding pin hole on the guide wheel mechanism 30, so that the guide wheel mechanism 30 is locked to the storage position. Of course, the locking member 24 is not limited to this, and the locking member 24 may also be an electronic locking, when the driving assembly 20 drives the guide wheel mechanism 30 to rotate to the working position, the driving assembly 20 automatically locks to lock the guide wheel mechanism 30 at the working position, and when the driving assembly 20 drives the guide wheel mechanism 30 to rotate to the storage position, the driving assembly 20 automatically locks to lock the guide wheel mechanism 30 at the storage position.
In some embodiments of the present invention, the driving assembly 20 includes a motor 21, a driving gear 22 and a driven gear 23, the driving gear 22 is connected to the output shaft of the motor 21, the driven gear 23 is engaged with the driving gear 22, and the guiding wheel mechanism 30 is connected to the driven gear 23, so that the guiding wheel mechanism 30 can rotate around the axis of the driving gear 22.
It can be understood that, the axis of driving gear 22 extends along the horizontal direction, for example, the axis of driving gear 22 can extend along the fore-and-aft direction, also can extend along the left and right directions, also can extend along other horizontal directions, it rotates to realize that leading wheel mechanism 30 rotates around the axis of driving gear 22 through adopting motor 21 to drive gear engagement, make drive assembly 20's stable performance, high transmission efficiency, high reliability, and rack and pinion can adapt to abominable operational environment, effectively guarantee the normal realization of leading wheel mechanism 30 pivoted, thereby guarantee that rail vehicle switches smoothly on track roof beam 2000 and on highway 3000 and travel.
In some embodiments of the present invention, the axial direction of the axle 32 extends in a vertical direction when the guide wheel mechanism 30 is in the operating position.
It will be appreciated that the guide surface of the rail beam 2000 extends generally vertically, and that the axial direction of the axle 32 extends vertically when the guide wheel mechanism 30 is in the operative position, so that the guide wheel 31 can better cooperate with the guide surface of the rail beam 2000 to guide the rail vehicle.
In some embodiments of the present invention, the guiding frame 10 includes four guiding cantilevers 11, the guiding cantilevers 11 include a connecting end 111 and a mounting end 112, the connecting ends 111 of the four guiding cantilevers 11 are sequentially connected along the circumferential direction, and the mounting ends 112 of the four guiding cantilevers 11 extend toward the direction of the center 12 far away from the guiding frame.
By providing the four guide cantilevers 11, the guide frame 10 can be made to be light in weight and small in size, which is advantageous for the light weight of the bogie 1000 and the arrangement and installation of the guide wheel mechanism 30. Of course, the form of the guide frame 10 is not limited to the cantilever type, and may be a roughly rectangular frame type, and the guide wheel mechanism 30 may be provided at a corner of the guide frame 10.
In some embodiments of the present invention, the guiding frame 10 further includes a reinforcing plate 13, and the reinforcing plate 13 connects two adjacent guiding cantilevers 11.
It can be understood that, when the guide frame 10 is a cantilever-type guide frame 10, since the driving assembly 20 is generally installed at the installation end 112 of the guide cantilever 11 far from the center 12 of the guide frame, the reinforcing plate 13 connecting two adjacent guide cantilevers 11 is disposed on the guide frame 10, so that the overall stress and structural strength of the guide frame 10 are better, and the operation of the bogie 1000 is more stable.
In some embodiments of the present invention, the driving assemblies 20 are installed at the installation ends 112 of the four guide cantilevers 11, and the driving assemblies 20 are connected to the guide wheel mechanism 30;
two adjacent guide wheel mechanisms 30 in the four guide wheel mechanisms 30 form one group, and the other two guide wheel mechanisms 30 form another group, and from the working position to the storage position, the two guide wheel mechanisms 30 in each group rotate in the direction of approaching each other.
That is, in the four guide wheel mechanisms 30, the two guide wheel mechanisms 30 located at the front may be one set, and the two guide wheel mechanisms 30 located at the rear may be another set, and at this time, the two guide wheel mechanisms 30 in each set rotate in a direction to approach each other, so that the two guide wheel mechanisms 30 located at the front are accommodated in the front, the two guide wheel mechanisms 30 located at the rear are accommodated in the rear, and the guide wheel mechanisms 30 located at the accommodated positions are accommodated toward the inner side of the guide frame 10, so that the arrangement of the traveling wheels 200 at the left and right sides is not affected, and the space is saved.
Of course, the four guide wheel mechanisms 30 may be such that the two guide wheel mechanisms 30 located on the left side form one set, the two guide wheel mechanisms 30 located on the right side form another set, and the two guide wheel mechanisms 30 in each set rotate in the direction in which they approach each other, so that both the two guide wheel mechanisms 30 located on the left side are housed on the left side, both the two guide wheel mechanisms 30 located on the right side are housed on the right side, and both the guide wheel mechanisms 30 located in the housed positions are housed toward the inside of the guide frame 10.
In some embodiments of the present invention, the bogie 1000 further comprises a road guide wheel 40, the road guide wheel 40 is connected to the guide frame 10, and the bottom surface of the road guide wheel 40 is located below the bottom surface of the running wheel 200.
By arranging the road guide wheels 40, when the guide wheel mechanism 30 is in the storage position, the guiding force can be transmitted to the guide frame 10 through the road guide wheels 40, when the rail vehicle runs on the road surface 3000, the bottom surfaces of the road guide wheels 40 are positioned below the bottom surfaces of the walking wheels 200, and then the road guide wheels 40 can be matched with the guide grooves 3100 arranged on the road surface 3000 to guide the rail vehicle, so that the automatic driving of the rail vehicle on the road surface 3000 can be realized.
In some embodiments of the present invention, the outer portion of the road guiding wheel 40 is wrapped with a buffer layer 41.
It can be understood that both sides of the road guide wheel 40 are matched with the guide groove 3100 to guide the running of the rail vehicle on the road 3000, and the collision and friction between the road guide wheel 40 and the guide groove 3100 can be buffered by wrapping the buffer layer 41 outside the road guide wheel 40, thereby reducing the noise generated when the road guide wheel 40 is guided. The cushion layer 41 may be vulcanized rubber or other materials that can play a cushioning role.
According to the utility model discloses rail vehicle of second aspect embodiment includes according to the utility model discloses the above-mentioned bogie 1000 of first aspect embodiment.
According to the utility model discloses rail vehicle is through adopting foretell bogie 1000 for rail vehicle can be applicable to simultaneously and go on track roof beam 2000 and highway 3000 road surface.
According to the utility model discloses rail transit system of third aspect embodiment, including track roof beam 2000, highway 3000 and rail vehicle, rail vehicle includes according to the utility model discloses the bogie 1000 of above-mentioned first aspect embodiment is provided with guide way 3100 on the highway 3000, guide way 3100 and highway leading wheel 40 looks adaptation, when leading wheel mechanism 30 is in the storage position, guiding force accessible highway leading wheel 40 transmits to the guide frame.
It will be appreciated that the track beam 2000 is connected to the road 3000, the rail vehicle travels on the track beam 2000 with the guide wheel mechanism 30 in the operative position, the guide wheels 31 cooperate with the track beam 2000 to guide the travel of the rail vehicle on the track beam 2000, when the rail vehicle is going to travel to the road 3000, the driving assembly 20 drives the guide wheel mechanism 30 to rotate to the storage position, at this time, the bottom surface of the guide wheel 31 is located above the bottom surface of the traveling wheel 200, the guide wheels 31 do not interfere with the running of the running wheels 200 on the road surface of the road 3000, on which road 3000 the rail vehicle can run, at which point the road guide wheels 40 engage with the guide grooves 3100 provided on the road 3000, so that the guide force can be transmitted to the guide frame 10 through the road guide wheels 40 to guide the running of the rail vehicle on the road, thereby enabling the automatic driving of the rail vehicle on the road 3000; when the rail vehicle changes its track from the road 3000 to the rail beam 2000, the rail vehicle firstly travels on the rail beam 2000, and then the driving assembly 20 drives the guide wheel mechanism 30 to rotate to the working position, so that the guide wheel 31 cooperates with the guide surface of the rail beam 2000 to guide the travel of the rail vehicle on the rail beam 2000.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (11)
1. A bogie, comprising:
a guide frame;
the guide wheel mechanism comprises a guide wheel and a wheel shaft, and the guide wheel is arranged at one end of the wheel shaft;
the driving assembly is mounted on the guide frame, the guide wheel mechanism is connected with the driving assembly, and the driving assembly is used for driving the guide wheel mechanism to rotate around a straight line in the horizontal direction so as to enable the guide wheel mechanism to be switched between a working position and a storage position;
in the working position, the guide wheels cooperate with the track beam to guide the rail vehicle;
in the storage position, the bottom surface of the guide wheel is positioned above the bottom surface of the walking wheel.
2. The bogie according to claim 1, wherein the drive assembly comprises a lock for locking the guide wheel mechanism in the operating position or the stowed position.
3. The truck of claim 1, wherein the drive assembly comprises:
a motor;
the driving gear is in transmission connection with an output shaft of the motor;
the driven gear is meshed with the driving gear, and the guide wheel mechanism is connected to the driven gear so as to enable the guide wheel mechanism to rotate around the axis of the driving gear.
4. A bogie as claimed in claim 1 in which the axial direction of the axle extends in a vertical direction when the guide wheel mechanism is in the operative position.
5. The bogie according to claim 1, wherein the guide frame comprises four guide cantilevers, the guide cantilevers comprise a connecting end and a mounting end, the connecting ends of the four guide cantilevers are sequentially connected in a circumferential direction, and the mounting ends of the four guide cantilevers extend in a direction away from the center of the guide frame.
6. The bogie of claim 5, wherein the drive assemblies are mounted to the mounting ends of the four guide booms, the drive assemblies each having the guide wheel mechanism connected thereto;
two adjacent guide wheel mechanisms in the four guide wheel mechanisms form a group, the other two guide wheel mechanisms form another group, and from the working position to the accommodating position, the two guide wheel mechanisms in each group rotate towards the direction close to each other.
7. The bogie of claim 1, further comprising road guide wheels coupled to the guide frame, wherein a bottom surface of the road guide wheels is positioned below a bottom surface of the running wheels.
8. The bogie of claim 7, wherein the highway guide wheel is externally wrapped with a cushioning layer.
9. A rail vehicle, characterized in that it comprises a bogie according to any one of claims 1-8.
10. A rail transit system comprising a rail vehicle according to claim 9.
11. Rail transit system according to claim 10, comprising a rail beam, a road and a rail vehicle, the rail vehicle comprising a bogie according to any of claims 7-8, the road being provided with guide grooves adapted to the road guide wheels, through which guide forces can be transmitted to the guide frame when the guide wheel mechanism is in the stowed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021720943.9U CN213007442U (en) | 2020-08-14 | 2020-08-14 | Bogie, rail vehicle and rail transit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021720943.9U CN213007442U (en) | 2020-08-14 | 2020-08-14 | Bogie, rail vehicle and rail transit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213007442U true CN213007442U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021720943.9U Active CN213007442U (en) | 2020-08-14 | 2020-08-14 | Bogie, rail vehicle and rail transit system |
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|---|---|
| CN (1) | CN213007442U (en) |
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2020
- 2020-08-14 CN CN202021720943.9U patent/CN213007442U/en active Active
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