CN210882101U - Connecting structure of vacuum magnetic suspension assembly type pipeline and magnetic suspension track - Google Patents
Connecting structure of vacuum magnetic suspension assembly type pipeline and magnetic suspension track Download PDFInfo
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- CN210882101U CN210882101U CN201922117747.6U CN201922117747U CN210882101U CN 210882101 U CN210882101 U CN 210882101U CN 201922117747 U CN201922117747 U CN 201922117747U CN 210882101 U CN210882101 U CN 210882101U
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Abstract
The utility model relates to a vacuum magnetism floats pipeline field, concretely relates to vacuum magnetism floats assembled pipeline and magnetism floats orbital connection structure. The vacuum magnetic suspension assembly type pipeline comprises an upper component in a U-shaped structure and a lower component in a U-shaped structure, and the upper component and the lower component are connected and spliced to form the vacuum magnetic suspension assembly type pipeline in a closed loop structure; the connecting structure comprises a height adjusting device and a supporting structure; the magnetic suspension track is formed by splicing at least two track plate members distributed along the length direction of the pipeline, and functional parts for forming magnetic suspension are arranged on two sides of the track plates. The track slab member is connected with the lower member through a heightening device and a supporting structure, and the heightening device is used for adjusting the distance between the lower member and the magnetic suspension track. The utility model provides an above-mentioned connection structure floats assembled pipeline through increaseing device connection track board component and vacuum magnetism, can carry out height control to the magnetism according to the settlement condition after the operation, guarantees the stationarity of operation.
Description
Technical Field
The utility model relates to a vacuum magnetism floats pipeline field, especially a vacuum magnetism floats assembled pipeline and magnetic levitation orbital connection structure.
Background
With the continuous improvement of the running speed, the wheel-rail noise, the aerodynamic resistance and the aerodynamic noise generated by the running of the wheel-rail train become more serious. When the running speed of the train is higher than 400km/h, the aerodynamic resistance accounts for more than 80-90% of the running resistance, the aerodynamic noise is high to 89dB, the wheel-rail noise and the wheel-rail dynamic action become severe, and great challenges are brought to the development of high-speed rail transit.
The vacuum high-speed magnetic levitation transportation technology is a technology formed by combining a vacuum pipeline and a magnetic levitation technology, and the speed can reach 600-1000 km/h due to the fact that the restrictions of air resistance, noise, wheel-rail adhesion and the like are broken through, and the blank space from high-speed rails to air transportation is filled; with the breakthrough of high-power traction driving technology, the speed can reach 1000km/h and above, even supersonic speed or higher speed than sonic speed, and the method becomes a long-distance urban or ultra-long distance intercontinental transportation mode for compensating or replacing aviation in the future.
In 2017, the American Hyperloop one company sets up a vacuum pipeline test line with the length of 500m in Nevada desert. A high-temperature superconducting magnetic levitation traffic annular test system is built in 2013 by southwest traffic university in China. The current finished lines are more specific to test lines, and the line length is shorter. Because the test vehicle height is shorter, and the load is lighter, the pipeline roof beam size is also less, and the construction degree of difficulty is lower.
The traditional high-speed magnetic levitation track beam adopts a beam-track integrated magnetic levitation track structure. In order to deal with the uneven settlement deformation of the foundation, the work department needs to monitor the line shape of the magnetic suspension track regularly, and the line shape is adjusted by the heightening support arranged at each beam end to ensure the smoothness of the line. The structural form is relatively simple, but the adjustment on the track deformation caused by the self deformation of the beam part in the same span cannot be realized. And when the roof beam strides longer, roof beam portion when heavier, the size of increaseing the support will show the increase, brings great trouble for pier shaft design, and the adjusting capability of increaseing the support simultaneously also can obviously receive the restriction, has increased the operation in later stage and has overhauld the maintenance degree of difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to solve the problems in the prior art, a connecting structure of a vacuum magnetic suspension assembly type pipeline and a magnetic suspension track is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
a connecting structure of a vacuum magnetic suspension assembly type pipeline and a magnetic suspension track comprises an upper component in a U-shaped structure and a lower component in a U-shaped structure, wherein the upper component and the lower component are connected and spliced to form the vacuum magnetic suspension assembly type pipeline in a closed loop structure; the magnetic levitation track is formed by splicing at least two track slab members distributed along the length direction of a pipeline, the functional parts for suspension are arranged on two sides of the track slab members, the connecting structure comprises a heightening device and a supporting structure, the supporting structure is arranged on the lower part member, one end of the heightening device is connected with the track slab members, the other end of the heightening device is connected with the supporting structure, and the heightening device is used for adjusting the distance between the supporting structure and the magnetic levitation track. The utility model provides a vacuum magnetic levitation assembled pipeline and magnetic levitation orbital connection structure, through heightening device connection track board component and vacuum magnetic levitation assembled pipeline for magnetic levitation track and pipeline separation can carry out the altitude mixture control to magnetic levitation track according to the settlement condition after the operation. Under the condition that the pipeline deforms, adjustment can be achieved, and running stability is guaranteed. In addition, the track board component and the pipeline can be processed separately, the width and the height of the track board component can be designed according to the structure and the functional area requirements of the vehicle body, and the length of the track board component can be set according to the convenience of construction and the later-stage linear adjustment requirements, so that the track board component has high flexibility.
As the preferred scheme of the utility model, the supporting structure is a concrete structural member, a pre-embedded bolt is arranged in the supporting structure, and the supporting structure is connected with the connecting piece through the pre-embedded bolt; the track slab member is a concrete structural member, and functional members such as magnetic suspension coils and the like are arranged on two sides of the track slab member. The track slab member is internally provided with an embedded bolt, and the track slab member is connected with the height adjusting device through the embedded bolt. Through the scheme, the track plate member can be prefabricated and then transported to a construction site. The support structure may be cast in situ or prefabricated. The connection of each part is realized through the embedded bolts, and the connection mode is simple and convenient to detach. In addition, the track slab member and the heightening device can be processed and assembled respectively, so that the construction difficulty is low, and the construction period can be effectively shortened.
As the preferred scheme of the utility model, the height adjusting device comprises a connecting piece and a backing plate; one end of the connecting piece is connected with the track slab member, and the other end of the connecting piece is detachably connected with the supporting structure; the backing plate is arranged between the connecting piece and the lower component. Through the above technical scheme provided by the utility model, when the height of each track board component is adjusted to needs, dismantle being connected between connecting piece and the bearing structure, then take out or place the backing plate, can realize heightening the adjustment of device height to adjust the height of each track board component.
As the preferred scheme of the utility model, the connecting piece comprises an upper connecting plate, a lower connecting plate and a supporting plate, the upper connecting plate and the lower connecting plate are arranged oppositely, and the upper connecting plate and the lower connecting plate are connected through the supporting plate; the upper connecting plate is connected with the track plate member, and the lower connecting plate is connected with the supporting structure. Specifically, the upper connecting plate, the supporting plate and the lower connecting plate are fixedly connected, and preferably, the upper connecting plate, the supporting plate and the lower connecting plate are integrally formed. With the structure, the upper connecting plate is used for providing a sufficient connecting area for the connection of the connecting piece and the track plate member; the lower connecting plate is used for providing enough connecting area for the connection of the connecting piece and the track plate member, and the structure can provide sufficient operating space for detaching and connecting the embedded bolts.
As the preferred scheme of the utility model, the connecting piece is arranged between two adjacent track slab members; the upper connecting plate comprises an upper connecting wing I and an upper connecting wing II which are respectively positioned at two sides of the supporting plate, the upper connecting wing I is connected with one track plate member, and the upper connecting wing II is connected with the other track plate member; the lower connecting plate comprises a first lower connecting wing and a second lower connecting wing which are respectively positioned at two sides of the supporting plate.
As the utility model discloses an optimal scheme, vacuum magnetic levitation assembled pipeline includes the straightway, and at straight line section department, upper junction plate and lower connecting plate parallel arrangement.
As the utility model discloses a preferred scheme, vacuum magnetic levitation assembled pipeline includes the curve section department: the lower member is formed by splicing at least two pipeline beams with different directions and linear axes, the magnetic suspension track is formed by splicing at least two track plate members with different directions and linear axes, and the distance between the upper connecting plate and one end of the lower connecting plate is smaller than the distance between the upper connecting plate and the other end of the lower connecting plate.
The above-described structure can be used for curved sections of a line. In the prior art, because the functional part for generating magnetic levitation on the magnetic levitation line has higher processing precision requirement, the existing curve beam of the magnetic levitation line is processed by the following method: the curved beam of the magnetic levitation track is formed by pouring in a curved beam bending mode, then functional parts for realizing magnetic levitation are installed on two sides of the upper edge of the magnetic levitation track beam in a machining mode, and then the magnetic levitation track is transported to the site. It has the following disadvantages: firstly, the processing mode of curved beam bending needs to consider not only the height difference of two ends of the cross section of the curved beam, but also the bending degree of the curved beam along the axis direction, the curved beam line is a space three-dimensional curve, and the difficulty of pouring the vertical mold is large; secondly, the whole beam piece formed by pouring is transported and machined by a machine tool, so that the transportation cost is high. Through the structure, the plurality of track plate members are arranged along the curve direction, so that the plurality of track plate members form the curved beam which is distributed in a curve on the whole, and the axis directions of the track plate members and the pipeline beam are still arranged along a straight line on the part, thereby not only meeting the use requirement, but also being beneficial to reducing the construction difficulty; in addition, when the functional parts are installed, only the track plate members need to be transported and machined, and the transportation cost can be obviously reduced.
As the utility model discloses a preferred scheme, the device of increaseing includes the adjustable high support, and the junction of two adjacent track board components is located to the adjustable high support to link to each other with two adjacent track board components.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model provides a vacuum magnetic levitation assembled pipeline and magnetic levitation orbital connection structure, through heightening device and strutting arrangement connection track board component and vacuum magnetic levitation assembled pipeline, can carry out height control to the track board component according to the settlement condition after the operation, guarantee the stationarity of operation. In addition, the track slab member and the pipeline beam can be processed separately, the width and the height of the track slab member can be designed according to the structure and the functional area requirements of the vehicle body, and the length of the track slab member can be set according to the convenience of construction and the later-stage linear adjustment requirements, so that the track slab member has high flexibility.
Drawings
Fig. 1 is a schematic structural view of the middle vacuum magnetic levitation fabricated pipeline of the present invention.
Fig. 2 is a schematic side view of a vacuum magnetic levitation fabricated pipeline in embodiment 1 of the present invention.
Fig. 3 is a schematic view of an end face structure of a vacuum magnetic levitation fabricated pipeline in embodiment 1 of the present invention.
Fig. 4 is a partially enlarged view of a V portion in fig. 2.
Fig. 5 is a schematic view of an end face structure of a vacuum magnetic levitation fabricated pipeline in a curved pipe portion in embodiment 1 of the present invention.
Fig. 6 is a schematic side view of a vacuum magnetic levitation fabricated pipeline in embodiment 2 of the present invention.
Fig. 7 is a schematic view of an end face structure of a vacuum magnetic levitation fabricated pipeline in embodiment 2 of the present invention.
Icon: 1-an upper member; 14-positioning the slotted plate; 141-a splicing hole; 2-a lower member; 21-arc surface section one; 22-arc surface section two; 23-a planar section; 2-a pipe beam; 28-a first sealing packing; 29-U-shaped plate; 291-beam end connection hole; 3-a second sealing filler; 25 a-embedding bolts; 25 b-embedding bolts; 25 c-embedding bolts; 25 d-embedding bolts; 4-a magnetic levitation track; 41-a track slab member; 5-a height-adjusting device; 51-a connector; 511-upper connection plate; 512-a support plate; 513-lower connecting plate; 511 a-upper connecting wing I; 511 b-upper connecting wing II; 52-backing plate; 6-supporting the structure.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
Referring to fig. 1-5, an embodiment of the present invention provides a connection structure of a vacuum magnetic levitation fabricated pipeline and a magnetic levitation track 4. The vacuum magnetic suspension assembly type pipeline comprises an upper component 1 in a U-shaped structure and a lower component 2 in a U-shaped structure, wherein the upper component 1 and the lower component 2 are connected and spliced to form a closed-loop vacuum magnetic suspension assembly type pipeline.
Specifically, both ends of the U-shape of the upper member 1 are connected with positioning groove plates 14, and positioning grooves matched with the bumps are formed between the positioning groove plates 14 and the upper member 1. The U-shaped ends of the lower member 2 are each connected with a projection. The connection between the upper member 1 and the positioning groove plate 14 can be a fixed connection, an adhesive connection or an integral connection.
The lower member 2 is a concrete structural member. And a second sealing filler 3 is arranged between the convex block and the positioning groove plate 14, and an embedded bolt 25a used for being connected with the positioning groove plate 14 is arranged in the convex block. The positioning groove plate 14 is provided with a splicing hole 141 used for being connected with the embedded bolt 25a in the convex block, the splicing hole 141 is rectangular, and the length direction of the splicing hole 141 is arranged along the length direction of the vacuum magnetic suspension assembly type pipeline.
The lower component 2 is formed by splicing at least two pipeline beams 2 arranged along the length direction, an expansion joint is arranged between every two adjacent pipeline beams 2, the end parts, close to each other, of the two adjacent pipeline beams 2 are provided with grooves, first sealing filler 28 is lapped in the grooves of the two adjacent pipeline beams 2, a U-shaped plate 29 covers the first sealing filler 28, and the two adjacent pipeline beams 2 are connected with the U-shaped plate 29 through embedded bolts 25 b.
Specifically, two sets of beam end connection holes 291 are formed in the U-shaped plate 29, one set of beam end connection holes 291 is used for being connected with the embedded bolt 25b in one of the pipeline beams 2, and the other set of beam end connection holes 291 is connected with the embedded bolt 25b in the other pipeline beam 2. At least one set of beam end connection holes 291 is formed as a long hole, and the length direction thereof is arranged along the length direction of the vacuum magnetic levitation fabricated pipeline.
The outer surface of the locator plate 14 near the axis of the pipe transitions smoothly with the bottom surface of the groove. The first sealing packing 28 covers the boundary line between the positioning groove plate 14 and the bottom surface of the groove.
The pipeline beam 2 comprises a first cambered surface section 21, a second cambered surface section 22 and a plane section 23, wherein one side of the plane section 23 is connected with the first cambered surface section 21, and the other side of the plane section 23 is connected with the second cambered surface section 22. The boss is arranged at the end parts of the first arc-shaped section and the second arc-shaped section 22, and the arc-shaped sections are used for being connected with the upper component 1. Namely: the planar section 23 is located at the bottom of the lower member 2.
The embodiment of the utility model provides a vacuum magnetic levitation assembled pipeline and magnetic levitation track 4's connection structure is including increaseing device 5 and bearing structure 6. The magnetic suspension track 4 is formed by splicing a plurality of track plate members 41 distributed along the length direction of the vacuum magnetic suspension assembly type pipeline, the track plate members 41 are connected with the plane section 23 of the pipeline beam 2 through a heightening device 5, and the heightening device 5 is used for adjusting the distance between the plane section 23 and the track plate members 41.
Specifically, the plane section 23 is convexly provided with a supporting structure 6, the supporting structure 6 is a concrete member, and the supporting structure 6 and the pipeline beam 2 can be integrally cast. The support structure 6 is provided with embedded bolts 25 c. During construction, the supporting structure 6 can be formed by cast-in-place according to the linear condition of the pipeline on the construction site, and the flexibility is strong.
The track plate member 41 is a concrete member, and the track plate member 41 is provided with embedded bolts 25 c.
The height-adjusting device 5 comprises a connecting piece 51 and a backing plate 52. The support structure 6 is connected to the height-adjusting means 5 by means of a connecting piece 51, and a shim plate 52 is arranged between the connecting piece 51 and the support structure 6. The backing plate 52 is provided with a through hole for the embedded bolt 25d to pass through. When the height adjusting device is used, the embedded bolts 25c and the embedded bolts 25d are detached, the number of the base plates 52 between the connecting piece 51 and the supporting structure 6 is reduced and added, or the base plates 52 with different thicknesses are replaced, so that the height adjustment of the track plate component 41 can be realized.
Further, the connecting member 51 includes an upper connecting plate 511, a lower connecting plate 513 and a supporting plate 512, the upper connecting plate 511 and the lower connecting plate 513 are oppositely disposed, and the upper connecting plate 511 and the lower connecting plate 513 are connected through the supporting plate 512, that is: the cross section of the connecting piece 51 is I-shaped, and the length direction of the connecting piece 51 is arranged along the width direction of the vacuum magnetic suspension assembly type pipeline.
The connecting member 51 is disposed between adjacent two of the track plate members 41. The upper connection plate 511 is located at one side of the support plate 512 and is a first upper connection wing 511a, and the other side of the support plate 512 is a second upper connection wing 511 b. The first upper connection wing 511a is connected to one of the track plate members 41, and the second upper connection wing 511b is connected to one of the track plate members 41.
At the straight pipe part of the vacuum magnetic suspension fabricated pipeline, an upper connecting plate 511 and a lower connecting plate 513 are arranged in parallel.
Referring to fig. 5, at the curved section of the vacuum magnetic levitation fabricated duct, the lower member 2 is formed by splicing at least two duct beams 2 with different directions and straight axes, and the axes of the vacuum magnetic levitation fabricated duct are bent by the duct beams 2 to form a curved pipe portion. In the curved section, the magnetic levitation track 4 is formed by splicing at least two track plate members 41 which are different in azimuth and have straight axes, so that the axes of the magnetic levitation track 4 at the curved pipe part are bent, and the distance between the upper connecting plate 511 and one end of the lower connecting plate 513 is smaller than the distance between the upper connecting plate 511 and the other end of the lower connecting plate 513 at the curved pipe part, so that the centrifugal force of the train at the curved section is borne.
The embodiment of the utility model provides an above-mentioned vacuum maglev assembled pipeline and magnetic levitation track 4's connection structure's beneficial effect lies in:
1. the track plate member 41 and the vacuum magnetic suspension assembly type pipeline are connected through the height adjusting device 5, so that the height of the track plate member 41 can be adjusted according to the settlement condition after operation, and the operation stability is ensured;
2. the track plate member 41, the pipeline beam 2 and the heightening device 5 can be separately processed, during construction, the track plate member 41 and the pipeline beam 2 can be prefabricated and then transported to the site, and the vacuum magnetic suspension assembly type pipeline can be formed by sequentially connecting and splicing, which is beneficial to shortening the construction period;
3. the width and height of the track plate member 41 can be designed according to the structure and functional area requirements of the vehicle body, and the length of the track plate member 41 can be set according to the construction convenience and the later linear adjustment requirements, so that the track plate member has higher flexibility;
4. through the structure, when a curve section is constructed, the defect that the difficulty of erecting a mould is high in the prior art due to the fact that a curved beam is bent can be avoided, and the defect that the transportation cost is high in the prior art when a functional part is installed can also be avoided.
Example 2
Referring to fig. 6 and 7, an embodiment of the present invention provides a connection structure of a vacuum magnetic levitation fabricated pipeline and a magnetic levitation track 4, which is different from the connection structure in embodiment 1 in that: the height-adjusting means 5 are different in structure.
In the present embodiment, the height-adjusting means 5 comprises a height-adjustable support. The height adjustable support is arranged at the joint of two adjacent track plate members 41 and is connected with two adjacent track plate members 41.
The support structure 6 is arranged protruding from the planar section 23 of the lower member 2.
The lower end of the height-adjusting device 5 is connected to the support structure 6. The support structure 6 can be cast in situ on site according to the linear condition on site, and has high flexibility.
The structure of the height adjustable support itself belongs to the prior art and is not described in detail herein.
The connection structure that this embodiment provided has:
when the magnetic levitation track 4 is used, a power receiving boot needs to be installed on the side face of the connecting structure to ensure magnetic levitation power supply. In the embodiment, the height-adjusting device 5 is configured as a height-adjustable support, which is a mechanical finished product and is not convenient to connect, so that the support structure 6 is provided to facilitate installation of the power receiving shoe.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Vacuum magnetic levitation assembled pipeline and magnetic levitation orbital connection structure, vacuum magnetic levitation assembled pipeline is including the upper portion component that is the U-shaped structure and the lower part component that is the U-shaped structure, the upper portion component with the lower part component links to each other the concatenation and forms the vacuum magnetic levitation assembled pipeline that is closed loop structure, the magnetic levitation track is followed by at least two the track board component concatenation that pipeline length direction distributes forms for the function piece that forms the magnetic levitation is installed in track board component both sides, its characterized in that:
the connecting structure comprises a heightening device and a supporting structure, the supporting structure is arranged on the lower component, one end of the heightening device is connected with the track plate component, the other end of the heightening device is connected with the supporting structure, and the heightening device is used for adjusting the distance between the supporting structure and the magnetic levitation track.
2. The connecting structure of the vacuum magnetic suspension assembly type pipeline and the magnetic suspension track according to claim 1, wherein the supporting structure is a concrete structural member, embedded bolts are arranged in the supporting structure, and the supporting structure is connected with the height adjusting device through the embedded bolts;
the track slab member is a concrete structural member, an embedded bolt is arranged in the track slab member, and the track slab member is connected with the height adjusting device through the embedded bolt.
3. The connecting structure of the vacuum magnetic suspension assembly type pipeline and the magnetic suspension track according to claim 2, wherein the height adjusting device comprises a connecting piece and a backing plate;
one end of the connecting piece is connected with the track slab member, and the other end of the connecting piece is detachably connected with the supporting structure;
the backing plate is arranged between the connecting piece and the supporting structure.
4. The connecting structure of the vacuum magnetic suspension assembly type pipeline and the magnetic suspension track according to claim 3, wherein the connecting piece comprises an upper connecting plate, a lower connecting plate and a supporting plate, the upper connecting plate is arranged opposite to the lower connecting plate, and the upper connecting plate is connected with the lower connecting plate through the supporting plate;
the upper connecting plate is connected with the track plate member, and the lower connecting plate is connected with the support structure.
5. The connecting structure of the vacuum magnetic suspension fabricated pipeline and the magnetic suspension track according to claim 4, wherein the connecting piece is arranged between two adjacent track plate members;
the upper connecting plate comprises an upper connecting wing I and an upper connecting wing II which are respectively positioned on two sides of the supporting plate, the upper connecting wing I is connected with one track plate component, and the upper connecting wing II is connected with the other track plate component.
6. The connecting structure of the vacuum magnetic suspension fabricated pipeline and the magnetic suspension track according to claim 4, wherein the vacuum magnetic suspension fabricated pipeline comprises a straight line section, and the upper connecting plate and the lower connecting plate are arranged in parallel at the straight line section.
7. The connecting structure of the vacuum magnetic suspension fabricated pipeline and the magnetic suspension track according to claim 4, wherein the vacuum magnetic suspension fabricated pipeline comprises a curved section, the lower member is formed by splicing at least two pipeline beams which are different in direction and have straight axes, the magnetic suspension track is formed by splicing at least two track plate members which are different in direction and have straight axes, and the distance between the upper connecting plate and one end of the lower connecting plate is smaller than the distance between the upper connecting plate and the other end of the lower connecting plate.
8. The connecting structure of the vacuum magnetic suspension assembly type pipeline and the magnetic suspension track according to claim 1 or 2, wherein the height adjusting device comprises a height adjustable support which is arranged at the joint of two adjacent track plate members and is connected with the two adjacent track plate members.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922117747.6U CN210882101U (en) | 2019-11-29 | 2019-11-29 | Connecting structure of vacuum magnetic suspension assembly type pipeline and magnetic suspension track |
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| CN201922117747.6U CN210882101U (en) | 2019-11-29 | 2019-11-29 | Connecting structure of vacuum magnetic suspension assembly type pipeline and magnetic suspension track |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789737A (en) * | 2022-04-28 | 2022-07-26 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic suspension pipeline structure |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789737A (en) * | 2022-04-28 | 2022-07-26 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic suspension pipeline structure |
| CN114789737B (en) * | 2022-04-28 | 2023-06-27 | 中铁第四勘察设计院集团有限公司 | Vacuum magnetic levitation pipeline structure |
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