CN107650737B - Expansion joint for seamless contact rail - Google Patents
Expansion joint for seamless contact rail Download PDFInfo
- Publication number
- CN107650737B CN107650737B CN201710963813.4A CN201710963813A CN107650737B CN 107650737 B CN107650737 B CN 107650737B CN 201710963813 A CN201710963813 A CN 201710963813A CN 107650737 B CN107650737 B CN 107650737B
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- sliding
- plate
- rail
- rails
- expansion joint
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- 238000004873 anchoring Methods 0.000 claims description 30
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/30—Power rails
- B60M1/305—Joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a seamless contact rail expansion joint, which comprises two sliding rails and a sliding block arranged between the two sliding rails; the outer ends of the two sliding rails are respectively fixed with a contact rail; the sliding block comprises a plate block, wherein the plate block is provided with two inclined planes with opposite inclined planes; the inner end surfaces of the two sliding rails are respectively parallel to the two inclined surfaces of the plate; the seamless contact rail expansion joint further comprises a pre-compressed spring; the spring presses the sliding block, so that the two inclined planes of the plate block are tightly attached to the inner end surfaces of the two sliding rails, and the sliding of the two sliding rails is not affected. According to the seamless contact rail expansion joint provided by the invention, in the process of expanding with heat and contracting with cold of the contact rail, the two inclined surfaces of the plate block are always tightly attached to the inner end surfaces of the two sliding rails, so that the surface of the plate block is seamlessly connected with the rail surfaces of the two sliding rails to form a complete and seamless current receiving surface, and the current collector can smoothly slide in along the current receiving surface, so that the power supply of a train is continuous and the running is stable.
Description
Technical Field
The invention relates to the technical field of expansion joints, in particular to a seamless contact rail expansion joint.
Background
And the contact rails are arranged on two sides of the train track and are used for supplying power to the train. The current collector is arranged on the train, and in the running process of the train, the current collector is contacted with the rail surface of the contact rail and slides in along the rail surface.
And a contact rail expansion joint is arranged between the two contact rails. The temperature of the contact rail can be changed due to the change of the ambient temperature or the heat generated by current in operation, so that the contact rail expands with heat and contracts with cold. On one hand, the expansion joint of the contact rail allows a certain expansion and contraction amount to meet the thermal expansion and contraction requirements of the contact rail; on the other hand, the contact rail expansion joint provides connection for the two contact rails so as to form a complete current receiving surface, so that the current collector can smoothly pass through, and the power supply requirement of a train can be met.
In the prior art, the contact rail expansion joint comprises two long rails and a short rail arranged between the two long rails. Each long rail is fixed with one contact rail, two gaps for the contact rail to stretch and retract are reserved between the two ends of the short rail and the two long rails, and when the contact rail stretches and contracts, the long rail moves along with the contact rail and the short rail slides freely. In the prior art, the existence of gaps and the uneven of two gaps easily cause the problems of blockage of a current collector, large operation noise, arc generation and the like, and the stable and reliable operation of a train is affected.
Disclosure of Invention
The invention aims to provide a seamless contact rail expansion joint, namely a gap is not formed between rail surfaces of the contact rail expansion joint, so that the risks of clamping in the gap when a current collector passes through and the risks of large operation noise, arc generation and the like caused by uneven gaps in the train operation process are avoided.
The seamless contact rail expansion joint provided by the invention is arranged between two contact rails, and comprises two sliding rails and a sliding block arranged between the two sliding rails; the outer ends of the two sliding rails are respectively fixed with the two contact rails; the sliding block comprises a plate block, wherein the plate block is provided with two inclined planes with opposite inclined planes; the inner end surfaces of the two sliding rails are respectively parallel to the two inclined surfaces of the plate;
the seamless contact rail expansion joint further comprises a pre-compressed spring; the springs are propped against the sliding blocks, so that two inclined planes of the plate block are tightly attached to the inner end surfaces of the two sliding rails.
According to the seamless contact rail expansion joint provided by the invention, in the process of expanding with heat and contracting with cold of the contact rail, the two inclined surfaces of the plate block are always tightly attached to the inner end surfaces of the two sliding rails, so that the surface of the plate block is seamlessly connected with the rail surfaces of the two sliding rails to form a complete current-collecting surface without gaps.
Optionally, the sliding block further comprises a fixed block, and the fixed block is integrally arranged on the back surface of the plate; the seamless contact rail expansion joint further comprises two anchoring clamping plates;
The two anchoring splints are respectively arranged on the two sides of the rail surface of the two sliding rails and the surface of the plate and are in sliding connection with the fixed block and the two sliding rails; and the spring is precompressed between the fixed block and one of the anchor clamps.
Optionally, the anchoring splint is connected with the fixed block and the sliding rail through a plurality of bolts; the fixed block slides along the axial direction of the corresponding bolt; the connection part of the sliding rail and the anchoring clamping plate is provided with a long hole for the bolt at the connection part to slide, and the long hole extends along the length direction of the sliding rail.
Optionally, the inclination angle of the two inclined planes of the plate is 25 degrees.
Optionally, the spring is sleeved on the positioning pin; the locating pin penetrates through the anchoring clamping plate close to the large end of the plate and extends to the fixing block.
Optionally, the seamless contact rail expansion joint further comprises a centering mechanism, and the centering mechanism is used for enabling the sliding block to be positioned at the middle position of the inner end interval of the two sliding rails; the seamless contact rail expansion joint further comprises a fixing seat used for installing the centering mechanism.
Optionally, the fixing base comprises a middle rod and fixing plates integrally arranged at two ends of the middle rod; the two fixing plates are respectively fixed on the surfaces of the two anchoring splints; the intermediate rod is fixed between the two anchoring splints and is positioned on the opposite side of the plate surface.
Optionally, the centering mechanism comprises a rotating rod and two push-pull rods; the middle part of the rotating rod is rotationally connected with the middle rod, and two ends of the rotating rod are respectively rotationally connected with one end of the push-pull rod; the other end of each push-pull rod is rotationally connected with one slide rail;
The middle part and the two ends of the rotating rod are respectively provided with a connecting hole, and the two connecting holes at the two ends are symmetrical relative to the connecting hole at the middle part; two ends of each push-pull rod are respectively provided with a connecting hole, and the distance between the two connecting holes of one push-pull rod is equal to the distance between the two connecting holes of the other push-pull rod.
Drawings
FIG. 1 is a schematic view of the overall structure of an angle of a seamless rail expansion joint according to the present invention;
FIG. 2 is a schematic view of the overall structure of the seamless rail expansion joint according to the present invention at another angle;
FIG. 3 is a schematic front view of an expansion joint for a seamless contact rail according to the present invention in a heated elongated state of the contact rail;
FIG. 4 is a schematic front view of the expansion joint for seamless contact rail provided by the invention in a cold shortened state of the contact rail;
FIG. 5 is a schematic top view of a seamless contact rail expansion joint provided by the present invention;
the reference numerals in fig. 1-5 are as follows: the device comprises a slide rail 1, a long hole 11, a slide rail surface 1a, a plate 21, a plate 22, a plate 2a surface, a spring 3, an anchor clamping plate 4, a bolt 5, a positioning pin 6, a centering mechanism 7, a rotating rod 71, a push-pull rod 72, a middle rod 81 and a fixing plate 82.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-2, fig. 1 is a schematic view of an overall structure of an angle of a seamless rail expansion joint according to the present invention; fig. 2 is a schematic view of the overall structure of another angle of the expansion joint for the seamless contact rail according to the present invention.
As shown in fig. 1, the seamless contact rail expansion joint provided by the invention comprises two sliding rails 1 and a sliding block arranged between the two sliding rails 1. The outer ends of the two sliding rails 1 are respectively fixed with the two contact rails. The sliding block comprises a plate 21, wherein the plate 21 is provided with two inclined surfaces which are opposite in inclined direction, the inclined surfaces can be specifically V-shaped blocks or trapezoid blocks, and the inclined angles of the two inclined surfaces can be 25 degrees. The inner end surfaces of the two sliding rails 1 are respectively parallel to the two inclined surfaces of the plate 21.
And, as shown in fig. 2, the contact rail expansion joint further comprises a spring 3, wherein in an initial installation state, the spring 3 is in a pre-compression state; the spring 3 presses the sliding blocks, so that two inclined planes of the plate 21 are tightly attached to the inner end surfaces of the two sliding rails 1, and the plate surface 2a is in seamless connection with the rail surface 1a of the sliding rail.
Referring to fig. 3-4, fig. 3 is a schematic front view of a seamless expansion joint for contact rails provided by the present invention in a heated and elongated state of the contact rails; fig. 4 is a schematic front view of the expansion joint for the seamless contact rail provided by the invention in a cold shortened state of the contact rail.
Specifically, as shown in fig. 3, when the contact rail is elongated by heating, both the sliding rails 1 slide along the direction of the sliding block (arrow direction in the drawing), the distance between the inner ends of the two sliding rails 1 is reduced, and the pushing plate 21 slides along the inner ends of the two sliding rails 1 toward the direction of the spring 3 (upward in the drawing), so that the spring 3 is further compressed. The compressed spring 3 downwards presses the sliding block, so that the two inclined planes of the plate 21 are tightly attached to the end faces of the inner ends of the two sliding rails 1.
Specifically, as shown in fig. 4, when the contact rail is cooled and shortened, both the slide rails 1 slide in a direction away from the slide blocks (in the direction of arrow in the drawing), and the distance between the inner ends of the slide blocks increases. At this time, since the springs 3 are initially in the pre-compressed state, a downward pressing force can still be applied to the sliding blocks, so that the plate 21 slides along the inner end faces of the sliding rails 1 in a direction away from the springs 3 (downward in the drawing), and the two inclined surfaces of the plate 21 are tightly attached to the inner end faces of the two sliding rails 1.
As described above, in the process of expanding with heat and contracting with cold of the contact rail, the two inclined surfaces of the plate 21 and the inner end surfaces of the two slide rails 1 are always tightly attached, so that the plate surface 2a and the two slide rail surfaces 1a are seamlessly connected to form a complete and seamless current-collecting surface.
Specifically, as shown in fig. 2, the slider further includes a fixing block 22, and the fixing block 22 is integrally disposed on the back surface of the plate 21, that is, on the surface opposite to the surface of the plate 21. In particular, the fixed block 22 may be disposed approximately perpendicular to the plate 21.
More specifically, as shown in fig. 2, the expansion joint for a seamless contact rail further includes two anchoring clamping plates 4, and the two anchoring clamping plates 4 are respectively disposed on two sides of the rail surface 1a of the two sliding rails and the surface 2a of the plate. In a specific embodiment, the sliding rail 1 is an i-shaped rail with an i-shaped cross section. Of the two parallel plates of the I-shaped rail, the surface of one parallel plate forms a slide rail surface 1a, and the two sides of the two parallel plates form rail edges. Two rail cavities are formed between two sides of the middle rib plate of the I-shaped rail and the two parallel plate bodies. The sections of the two anchoring splints 4 are similar to T-shaped, the tail parts of the two anchoring splints are respectively embedded into rail cavities at the corresponding sides, and the head parts of the two anchoring splints are propped against the rail edges at the corresponding sides.
More specifically, as shown in fig. 2, the expansion joint for a seamless contact rail further comprises a fixing base, the fixing base comprises a middle rod 81, and the middle rod 81 is fixed between the two anchoring splints 4 and is positioned on the opposite side of the plate surface 2 a.
In addition, as shown in fig. 2, the fixing base further includes fixing plates 82 integrally disposed at two ends of the middle rod 81, and the two fixing plates 82 are respectively located on the surfaces of the two anchoring splints 4.
Referring to fig. 2 and 5, fig. 5 is a schematic top view of the expansion joint for a seamless contact rail according to the present invention.
In a specific embodiment, the middle parts of the two anchoring clamping plates 4 sequentially penetrate through the fixing plate 82 and the anchoring clamping plate 4 which are positioned on one side of the rail surface 1a of the sliding rail, the fixing block 22, and the anchoring clamping plate 4 and the fixing plate 82 which are positioned on the other side of the rail surface 1a of the sliding rail through two bolts 5. It should be understood that the two bolts 5 penetrating through the fixing block 22 do not affect the axial sliding of the fixing block 22 along the two bolts 5, i.e., the up-and-down direction of the drawing.
Simultaneously, both ends of the two anchoring splints 4 are respectively connected with the two sliding rails 1 in a sliding way through a bolt 5. Specifically, as shown in fig. 5, a long hole 11 is formed at the connection position of the two slide rails 1 and the anchoring clamping plate 4, the long hole 11 extends along the length direction of the slide rail 1, and the bolt 5 at the position penetrates through the corresponding long hole 11 and can slide along the length direction of the long hole 11, so that the two slide rails 1 and the anchoring clamping plate 4 can be slidably connected. Of course, other means of attachment than bolts are possible.
At this time, as shown in fig. 5, the spring 3 is precompressed between the fixing block 22 and the anchor clamping plate 4 near the large end (upper side in the drawing) of the plate 21. In addition, the middle part of the anchoring splint 4 is also provided with a locating pin 6, and the locating pin 6 sequentially penetrates through the fixing plate 82 near the large end of the plate 21 and the anchoring splint 4 and extends to the fixing block 22. The spring 3 is sleeved on the positioning pin 6, so that the spring 3 can be prevented from falling off. Please refer to fig. 2 together for understanding.
Please continue to refer to fig. 2.
Further, the contact rail expansion joint further comprises a centering mechanism 7. As shown in fig. 2, the centering mechanism 7 includes a rotating rod 71 and two push-pull rods 72. The middle part of the rotating rod 71 is rotatably connected to the middle rod 81, and both ends are rotatably connected to one end of each push-pull rod 72. The other end of each push-pull rod 72 is rotatably connected to one of the slide rails 1. In particular, the rotational connection may be a hinge.
The middle part and two ends of the rotating rod 71 are respectively provided with a connecting hole; the two connections at the two ends are symmetrical relative to the connection hole at the middle part. Each of the two ends of the push-pull rod 72 is provided with a connecting hole, and the distance between the two connecting holes of one push-pull rod 72 is equal to the distance between the two connecting holes of the other push-pull rod 72.
Please refer to fig. 3-4.
The specific working procedure of the centering mechanism 7 is as follows:
As shown in fig. 3, when the two slide rails 1 slide in the direction of the sliding block, the two push-pull rods 72 are driven to move in the direction of the sliding block, so that the two push-pull rods 72 and the rotating rod 71 are pushed against each other. Under the pushing force of the rotating rod 71, the end of each push-pull rod 72 connected with the rotating rod 71 rotates relative to the end of the push-pull rod 72 connected with the sliding rail 1, and the end rotates anticlockwise with the view of fig. 3. Meanwhile, the rotating rod 71 rotates around the middle portion thereof under the pushing force of the two push-pull rods 72, and the rotating rod 71 rotates clockwise with the view of fig. 3. That is, when the two contact rails are elongated by heat, the centering mechanism 7 is entirely in a folded state.
Meanwhile, when the heated elongation of the two contact rails is different, the slippage of the two sliding rails 1 is different. With the view of fig. 3, for example, when the sliding amount of the left side sliding rail 1 is greater than the sliding amount of the right side sliding rail 1, the rotating rod 71 moves rightward while rotating clockwise as described above under the pushing action of the two push-pull rods 72, so as to drive the sliding block to slide rightward, and thus the sliding block is located at the middle position of the interval between the inner ends of the two sliding rails 1.
As shown in fig. 4, when the two contact rails are cooled and shortened, the two sliding rails 1 fixedly connected with the two contact rails slide in a direction away from the sliding block, so that the two sliding rods 72 are driven to move in a direction away from the sliding block, and the two sliding rods 72 and the rotating rod 71 are pulled mutually. Under the pulling force of the rotating rod 71, the end of each push-pull rod 72 connected with the rotating rod 71 rotates relative to the end of the push-pull rod 72 connected with the sliding rail 1, and the push-pull rods rotate clockwise from the view of fig. 4. Meanwhile, under the pulling force of the two push-pull rods 72, the rotating rod 71 rotates around the middle part thereof, and the rotating rod 71 rotates counterclockwise with the view of fig. 4. That is, when the two contact rails are shortened by cooling, the centering mechanism 7 is in an extended state as a whole.
Meanwhile, when the amounts of shortening of the two contact rails are different, the amounts of sliding of the two sliding rails 1 are different, and when the amount of sliding of the left sliding rail 1 is larger than the amount of sliding of the right sliding rail 1 in view of fig. 4, the rotating rod 71 moves leftwards under the pulling action of the two sliding rods 72 while rotating anticlockwise as described above, so as to drive the sliding block to slide leftwards, thereby enabling the sliding block to be located at the middle position of the inner end interval of the two sliding rails 1.
As described above, the centering mechanism 7 is arranged, so that the sliding block is always positioned at the middle position of the inner end distance between the two sliding rails 1 in the process of expanding with heat and contracting with cold of the contact rail, so that the sliding block can be tightly attached to the inner end surfaces of the two sliding rails 1 at the same time, the risk that the sliding block is deviated from the middle position to cause that the sliding block is attached to the inner end surface of only one sliding rail 1 or is not attached to the inner end surfaces of the two sliding rails 1 can be avoided, and the formation of a complete and seamless current receiving surface is facilitated.
The seamless contact rail expansion joint provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (2)
1. The seamless contact rail expansion joint is arranged between two contact rails and is characterized by comprising two sliding rails (1) and a sliding block arranged between the two sliding rails (1); the outer ends of the two sliding rails (1) are respectively fixed with the two contact rails; the sliding block comprises a plate (21), wherein the plate (21) is provided with two inclined surfaces which are opposite in inclined direction; the inner end surfaces of the two sliding rails (1) are respectively parallel to the two inclined surfaces of the plate (21);
the seamless contact rail expansion joint further comprises a pre-compressed spring (3); the springs (3) are propped against the sliding blocks, so that two inclined planes of the plate (21) are tightly attached to the inner end surfaces of the two sliding rails (1);
The sliding block further comprises a fixed block (22), and the fixed block (22) is integrally arranged on the back surface of the plate (21); the seamless contact rail expansion joint also comprises two anchoring clamping plates (4);
The two anchoring clamping plates (4) are respectively arranged at two sides of the rail surface (1 a) of the two slide rails and the surface (2 a) of the plate, and are in sliding connection with the fixed block (22) and the two slide rails (1); and the spring (3) is precompressed between the fixed block (22) and one anchoring splint (4);
The anchoring clamping plate (4) is connected with the fixed block (22) and the sliding rail (1) through a plurality of bolts (5); the fixed block (22) can slide along the axial direction of the corresponding bolt (5); a long hole (11) for sliding the bolt (5) is formed in the joint of the sliding rail (1) and the anchoring clamping plate (4), and the long hole (11) extends along the length direction of the sliding rail (1);
the seamless contact rail expansion joint further comprises a centering mechanism (7) which is used for enabling the sliding block to be positioned at the middle position of the inner end interval of the two sliding rails (1); the seamless contact rail expansion joint also comprises a fixed seat for installing the centering mechanism (7);
The spring (3) is sleeved on the positioning pin (6); the locating pin (6) penetrates through the anchoring clamping plate (4) close to the large end of the plate (21) and extends to the fixed block (22);
The fixing seat comprises a middle rod (81) and fixing plates (82) integrally arranged at two ends of the middle rod (81); the two fixing plates (82) are respectively fixed on the surfaces of the two anchoring splints (4); the intermediate rod (81) is fixed between the two anchoring splints (4) and is located on opposite sides of the panel surface (2 a);
the centering mechanism (7) comprises a rotating rod (71) and two push-pull rods (72); the middle part of the rotating rod (71) is rotationally connected with the middle rod (81), and two ends of the rotating rod are respectively rotationally connected with one end of the push-pull rod (72); the other end of each push-pull rod (72) is rotationally connected with one slide rail (1);
The middle part and two ends of the rotating rod (71) are respectively provided with a connecting hole, and the two connecting holes at the two ends are symmetrical relative to the connecting hole at the middle part; two ends of each push-pull rod (72) are respectively provided with a connecting hole, and the distance between the two connecting holes of one push-pull rod (72) is equal to the distance between the two connecting holes of the other push-pull rod (72).
2. A seamless rail expansion joint according to claim 1, characterized in that the inclination angle of both bevels of the plate (21) is 25 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963813.4A CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963813.4A CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107650737A CN107650737A (en) | 2018-02-02 |
| CN107650737B true CN107650737B (en) | 2024-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710963813.4A Active CN107650737B (en) | 2017-10-16 | 2017-10-16 | Expansion joint for seamless contact rail |
Country Status (1)
| Country | Link |
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| CN (1) | CN107650737B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509820B (en) * | 2018-05-21 | 2022-09-09 | 比亚迪股份有限公司 | Connection device for connecting conductor rails and conductor rail assembly having the same |
| CN109159721A (en) * | 2018-11-02 | 2019-01-08 | 湖南磁浮技术研究中心有限公司 | Seamless conductor rail expansion connecting device |
| CN110303950A (en) * | 2019-08-09 | 2019-10-08 | 中铁高铁电气装备股份有限公司 | Modular expansion element of contact rail power supply system |
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| DE2238958A1 (en) * | 1972-08-08 | 1974-02-28 | Bbc Brown Boveri & Cie | DEVICE FOR CONNECTING TWO TRACKS |
| CN202368402U (en) * | 2011-12-19 | 2012-08-08 | 王雁 | Novel expansion joint of urban rail transit contact rail |
| CN105742840A (en) * | 2016-03-28 | 2016-07-06 | 深圳华品轨道交通有限公司 | Jointless telescopic connector with contact rails |
| CN205634064U (en) * | 2016-04-05 | 2016-10-12 | 南京玛莎新型建材有限公司 | Block forming machine examines line centering device futilely |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2140472A1 (en) * | 1971-08-12 | 1973-02-22 | Stemmann Ohg A | SEAMLESS EXPANSION CONNECTOR |
| FR2574603B1 (en) * | 1984-12-07 | 1987-03-06 | Delachaux Sa | CONDUCTIVE BAR ELEMENT WITH EXPANSION JOINT |
| CN2736205Y (en) * | 2004-08-27 | 2005-10-26 | 铁道部电气化工程局宝鸡器材厂 | Expanding and jointing device of railway traffic conductor rail |
| WO2011091554A1 (en) * | 2010-02-01 | 2011-08-04 | 新誉集团有限公司 | Conductive rail joint |
| CN203713596U (en) * | 2014-01-16 | 2014-07-16 | 中铁电气化局集团宝鸡器材有限公司 | Steel aluminum contact rail expansion joint |
| CN204212501U (en) * | 2014-10-21 | 2015-03-18 | 河南中继威尔停车系统股份有限公司 | vehicle locating device |
| CN205423726U (en) * | 2016-03-17 | 2016-08-03 | 吉首大学 | Rack and pinion centering mechanism |
| CN106809057B (en) * | 2016-12-29 | 2017-11-17 | 比亚迪股份有限公司 | Conductor rail transition connecting apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2238958A1 (en) * | 1972-08-08 | 1974-02-28 | Bbc Brown Boveri & Cie | DEVICE FOR CONNECTING TWO TRACKS |
| CN202368402U (en) * | 2011-12-19 | 2012-08-08 | 王雁 | Novel expansion joint of urban rail transit contact rail |
| CN105742840A (en) * | 2016-03-28 | 2016-07-06 | 深圳华品轨道交通有限公司 | Jointless telescopic connector with contact rails |
| CN205634064U (en) * | 2016-04-05 | 2016-10-12 | 南京玛莎新型建材有限公司 | Block forming machine examines line centering device futilely |
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|---|---|
| CN107650737A (en) | 2018-02-02 |
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Country or region after: China Address after: Room 301, 3rd Floor, Building 1, Courtyard 3, Yuren South Road, Fengtai District, Beijing, 100160 Applicant after: BEIJING CIFU TRANSPORTATION DEVELOPMENT Co.,Ltd. Address before: 100124 room 2501, block C, Jin Changan tower, 82 East Fourth Ring Road, Chaoyang District, Beijing. Applicant before: Beijing Enterprises Holding Maglev Technology Development Co.,Ltd. Country or region before: China |
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