CN112962362A - Track structure - Google Patents
Track structure Download PDFInfo
- Publication number
- CN112962362A CN112962362A CN202110085095.1A CN202110085095A CN112962362A CN 112962362 A CN112962362 A CN 112962362A CN 202110085095 A CN202110085095 A CN 202110085095A CN 112962362 A CN112962362 A CN 112962362A
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- China
- Prior art keywords
- strip
- shaped
- telescopic rod
- track structure
- linear direction
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B21/00—Track superstructure adapted for tramways in paved streets
- E01B21/02—Special supporting means; Draining of rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention relates to the technical field of rails, and discloses a rail structure which comprises a strip rail, a T-shaped support and a protective sleeve, wherein the strip rail extends towards a preset linear direction, the T-shaped support extends towards the preset linear direction, and the cross section of the T-shaped support is in an inverted T shape; the inverted T-shaped support comprises a strip-shaped base extending towards the preset linear direction and a strip-shaped support seat extending towards the preset linear direction; the strip-shaped rail is supported on the strip-shaped base through the strip-shaped supporting seat; the protective sleeve is wrapped on the outer surface of the strip-shaped base, the outer surface of the strip-shaped supporting seat and the outer surface of the bottom of the strip-shaped rail; first depressed part and second depressed part have been seted up respectively to the edge of bar base, first depressed part with the second depressed part is located respectively the relative both sides of bar supporting seat. When the gauge stop block is installed, the installation position of the gauge stop block on the rail structure is determined, the gauge stop block is convenient to install, the installation error of the gauge stop block is reduced, and the construction quality is guaranteed.
Description
Technical Field
The invention relates to the technical field of rails, in particular to a rail structure.
Background
When the tramcar is moving, the tramcar is matched with a fixedly arranged track.
The rails are subjected to severe vibrations when the tram passes, which, if left untreated, would lead to the concrete filling the channel rails being broken up.
Therefore, the existing track structure adopts a flexible material to wrap the track, so as to avoid the situation that the vibration generated by the track causes the fragmentation of the concrete filled at the periphery.
However, in the conventional rail structure, when the rail structure is installed at a predetermined position, it is necessary to install a gauge block capable of preventing the rail from being deviated to the rail structure, but the surface of the flexible material of the conventional rail structure is flat, and the installation position of the gauge block is difficult to determine.
Disclosure of Invention
The purpose of the invention is: a rail structure for determining the installation position of a gauge block is provided.
In order to achieve the above object, the present invention provides a track structure, which comprises a bar-shaped track extending towards a predetermined linear direction, a T-shaped bracket extending towards the predetermined linear direction and having an inverted T-shaped cross section, and a protective sleeve; the inverted T-shaped support comprises a strip-shaped base extending towards the preset linear direction and a strip-shaped support seat extending towards the preset linear direction; the strip-shaped rail is supported on the strip-shaped base through the strip-shaped supporting seat; the protective sleeve is wrapped on the outer surface of the strip-shaped base, the outer surface of the strip-shaped supporting seat and the outer surface of the bottom of the strip-shaped rail; first depressed part and second depressed part have been seted up respectively to the edge of bar base, first depressed part with the second depressed part is located respectively the relative both sides of bar supporting seat.
Furthermore, the strip-shaped supporting seat is flat.
Further, the first concave part and the second concave part are symmetrically arranged on two sides of the strip-shaped supporting seat.
Further, the first recess includes a first cavity formed on a left side surface of the bar-shaped base.
Further, the first concave part also comprises a second concave cavity formed on the top surface of the strip-shaped base, and the first concave cavity is communicated with the second concave cavity.
Further, the second recess includes a third cavity formed on a right side surface of the bar-shaped base.
Further, the second concave part also comprises a fourth concave cavity formed on the top surface of the strip-shaped base, and the third concave cavity is communicated with the fourth concave cavity.
Further, the positioning device also comprises a first positioning part, a second positioning part, a third positioning part and a fourth positioning part; the protective sleeve comprises a first part wrapped on the left side face of the strip-shaped base and a second part wrapped on the right side face of the strip-shaped base; a first notch for clamping a first gauge stop block is formed in the first part corresponding to the first concave part, and a second notch for clamping a second gauge stop block is formed in the second part corresponding to the second concave part; in the predetermined straight line direction: the first positioning part and the second positioning part are respectively positioned at two sides of the first gap; the third positioning part and the fourth positioning part are respectively positioned at two sides of the second gap.
Further, the first positioning portion includes a first seat body disposed on an outer side surface of the first portion, a first telescopic rod connected to the first seat body and having a distal end extending toward the first notch, and a first limiting block connected to a distal end of the first telescopic rod and configured to abut against one side of the first gauge block; the second positioning part comprises a second seat body arranged on the outer side surface of the first part, a second telescopic rod connected to the second seat body and having a tail end extending to the first gap, and a second limiting block connected to the tail end of the second telescopic rod and used for abutting against the other side of the first gauge stop block; the third positioning part comprises a third seat body arranged on the outer side surface of the second part, a third telescopic rod connected to the third seat body and having a tail end extending to the second gap, and a third limiting block connected to the tail end of the third telescopic rod and used for abutting against one side of the second gauge stop block; the fourth positioning part comprises a fourth seat body arranged on the outer side surface of the second part, a fourth telescopic rod connected to the fourth seat body and extending from the tail end to the second notch, and a fourth limiting block connected to the tail end of the fourth telescopic rod and used for being abutted to the other side of the second gauge stop.
Further, the first recessed portion is provided in plurality along the predetermined linear direction, and the second recessed portion is provided in plurality along the predetermined linear direction.
Compared with the prior art, the track structure provided by the embodiment of the invention has the beneficial effects that:
in the track structure of the embodiment of the invention, the strip-shaped base, the strip-shaped supporting seat and the strip-shaped track form a track for a train, the first sleeve body, the protective sleeve and the second cover body are all made of flexible materials, one side surface of the strip-shaped base is attached to the inner side wall of the first side wall, and the other side surface of the strip-shaped base is attached to the inner side wall of the second side wall. When the track structure is formed and is installed to the designated position, the track gauge stop blocks are respectively matched and arranged in the first concave part and the second concave part, so that the track structure is prevented from deviating. In this embodiment, the mounted position of gauge dog on track structure is confirmed, and the installation of gauge dog is convenient, has reduced the installation error of gauge dog, has guaranteed construction quality.
Drawings
Fig. 1 is a schematic diagram of a track structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of another direction of the track structure according to the embodiment of the present invention.
Fig. 3 is an enlarged view at a in fig. 2 of the track structure of the embodiment of the present invention.
Fig. 4 is a first positioning portion structural view of the track structure of the embodiment of the present invention.
Fig. 5 is a first positioning portion structure diagram in another direction of the track structure according to the embodiment of the present invention.
In the figure, 1, a strip-shaped rail; 2. a T-shaped bracket; 21. a strip-shaped base; 22. a strip-shaped supporting seat; 3. a protective sleeve; 31. a first portion; 311. a first notch; 32. a second portion; 321. a second notch; 4. a first positioning portion; 41. a first seat body; 411. a first slideway; 412. a first slider; 4121. a first upper slider; 4122. a first lower slider; 4123. a first elastic body; 413. a first intersection surface; 414. a first spring; 415. a first cylinder; 414. a first bump; 417. a first rotating lever; 42. a first telescopic rod; 43. a first stopper; 5. a second positioning portion; 6. a third positioning part; 7. a fourth positioning portion.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
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", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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 description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1, a track structure according to a preferred embodiment of the present invention includes: the device comprises a strip-shaped rail 1 extending towards a preset linear direction, a T-shaped support 2 extending towards the preset linear direction and having an inverted T-shaped cross section, and a protective sleeve 3; the inverted T-shaped bracket 2 comprises a strip-shaped base 21 extending towards a preset linear direction and a strip-shaped supporting seat 22 extending towards the preset linear direction; the strip-shaped rail 1 is supported on the strip-shaped base 21 through the strip-shaped supporting seat 22; the protective sleeve 3 is wrapped on the outer surface of the strip-shaped base 21, the outer surface of the strip-shaped supporting seat 22 and the outer surface of the bottom of the strip-shaped rail 1; first depressed part and second depressed part have been seted up respectively to the edge of bar base 21, first depressed part with the second depressed part is located respectively bar supporting seat 22's relative both sides.
In the track structure of the preferred embodiment, the strip-shaped base 21, the strip-shaped support seat 22 and the strip-shaped track 1 form a track for a train, the protective sleeve 3 is made of a flexible material, the protective sleeve 3 is respectively attached to the outer surface of the strip-shaped base 21, the outer surface of the strip-shaped support seat 22 and the outer surface of the bottom of the strip-shaped track 1, and the strip-shaped base 21; wherein, the position that protective sheath 3 corresponds first depressed part forms the embedding, and the position that corresponds the second depressed part forms the embedding, and the position at first depressed part is installed to first gauge dog, and the position at the second depressed part is installed to the second gauge dog, can effectively prevent the skew of first gauge dog and second gauge dog. In this embodiment, the mounted position of the first gauge dog on one side of the track and the mounted position of the second gauge dog on the other side of the track on the track structure are determined respectively, the first gauge dog and the second gauge dog are mounted conveniently, the mounting error is reduced, and the construction quality is ensured.
Specifically, in one embodiment, referring to fig. 1-2, the strip support 22 is a flat plate.
Specifically, in one embodiment, referring to fig. 1-3, the first recessed portion and the second recessed portion are symmetrically disposed on both sides of the strip-shaped supporting seat 22 to ensure that the gauge stops mounted on both sides of the rail correspond to each other.
Specifically, in one embodiment, referring to fig. 1-3, the first recess includes a first cavity formed on the left side of the strip-shaped base 21. In this embodiment, the protective sheath 3 is attached to the wall of the first cavity.
Specifically, in one embodiment, referring to fig. 1 to 3, the first recess further includes a second cavity formed on the top surface of the strip-shaped base 21, and the first cavity is communicated with the second cavity. In this embodiment, the protective sheath 3 is further attached to the cavity wall of the second cavity.
Specifically, in one embodiment, referring to fig. 1-3, the second recess includes a third cavity formed on the right side of the strip-shaped base 21. In this embodiment, the protective sheath 3 is attached to the wall of the third cavity.
Specifically, in one embodiment, referring to fig. 1-3, the second recessed portion further includes a fourth recessed cavity formed on the top surface of the strip-shaped base 21, and the third recessed cavity is communicated with the fourth recessed cavity. In this embodiment, the protective sheath 3 is further attached to the cavity wall of the fourth cavity.
Specifically, in one embodiment, please refer to fig. 1 to 3, which further includes a first positioning portion 4, a second positioning portion 5, a third positioning portion 6 and a fourth positioning portion 7; the protective sleeve 3 comprises a first part 31 wrapped on the left side surface of the strip-shaped base 21 and a second part 32 wrapped on the right side surface of the strip-shaped base 21; a first notch 311 for a first gauge stopper to be clamped in is arranged at the position, corresponding to the first concave part, of the first part 31, and a second notch 321 for a second gauge stopper to be clamped in is arranged at the position, corresponding to the second concave part, of the second part 32; in the predetermined straight line direction: the first positioning portion 4 and the second positioning portion 5 are respectively located at two sides of the first notch 311; the third positioning portion 6 and the fourth positioning portion 7 are respectively located at two sides of the second notch 321.
In the present embodiment, the first positioning portion 4 and the second positioning portion 5 are used to position and fit the first gauge block in the first notch 311, and keep the first gauge block and the first notch 311 relatively fixed; the third positioning portion 6 and the fourth positioning portion 7 are used for positioning and fitting the second gauge block in the second notch 321, and keeping the second gauge block and the second notch 321 relatively fixed.
Specifically, in an embodiment, referring to fig. 4-5, the first positioning portion 4 includes a first seat 41 disposed on an outer side surface of the first portion 31, a first telescopic rod 42 connected to the first seat 41 and having a distal end extending to the first notch 311, and a first limiting block 43 connected to the distal end of the first telescopic rod 42 and configured to abut against one side of the first gauge block; the second positioning portion 5 includes a second seat body disposed on the outer side surface of the first portion 31, a second telescopic rod connected to the second seat body and having a tail end extending to the first notch 311, and a second limiting block connected to the tail end of the second telescopic rod and configured to abut against the other side of the first gauge block; the third positioning portion 6 includes a third seat body disposed on the outer side surface of the second portion 32, a third telescopic rod connected to the third seat body and having a tail end extending to the second notch 321, and a third limiting block connected to the tail end of the third telescopic rod and configured to abut against one side of the second gauge block; the fourth positioning portion 7 includes a fourth seat body disposed on the outer side surface of the second portion 32, a fourth telescopic rod connected to the fourth seat body and having a tail end extending to the second notch 321, and a fourth limiting block connected to the tail end of the fourth telescopic rod and used for abutting against the other side of the second gauge block.
In this embodiment, when the first gauge block is fitted in the first notch 311, the first stopper 43 and the second stopper are pressed and abutted against each other, so that the first gauge block can be stably fitted in the first notch 311. When the second gauge stop is fitted in the second notch 321, the third limit block and the fourth limit block are respectively extruded and abutted, so that the second gauge stop can be firmly fitted in the second notch 321. This embodiment is fixed first gauge dog and second gauge dog through extruded mode, and first gauge dog and second gauge dog are firm with the cooperation that corresponds the breach respectively.
Specifically, in one embodiment, referring to fig. 1 to 3, the first recess is provided in plurality along the predetermined linear direction, and the second recess is provided in plurality along the predetermined linear direction, so as to mount a plurality of gauge stoppers and position the gauge stoppers relative to each other.
Specifically, in one embodiment, the first positioning portion 4, the second positioning portion 5, the third positioning portion 6, and the fourth positioning portion 7 are similar in structure, and the structure of the first positioning portion 4 will be described below:
referring to fig. 4-5, a first hole for inserting the first telescopic rod 42, a first slide 411 communicating with the first hole and forming a first junction surface 413 with the first hole, a first slide block 412 slidably disposed in the first slide 411 and connected to an end of the first telescopic rod 42, a first spring 414 having one end fixedly connected to the first junction surface 413 and the other end connected to the first slide block 412, and a first driving member for driving the first slide block 412 to slide in the first slide 411 along an axial direction of the first hole are disposed in the first seat 41. The first driving member includes a first cylinder 415 having a first recess on a side surface thereof, a first protrusion 414 disposed in the first recess and abutting against the first sliding block 412, and a first rotating rod 417 connected to an end surface of the first cylinder 415 and extending out of the first seat 41; in the cross section of the first cylinder 415: the surface of the first bump 414 has a first arc shape, and both ends of the first arc shape extend to the side of the first cylinder 415. In this embodiment, when the first sliding block 412 abuts on the middle portion of the first protrusion 414, since the distance between the middle portion of the first protrusion 414 and the axis of the first cylindrical body 415 is smaller than the distance between both sides of the first protrusion 414 and the axis of the first cylindrical body 415, the first sliding block 412 is at the limit position of contraction at this time; when the first rotating lever 417 is rotated, the distance between the first sliding block 412 and the axis of the first cylinder 415 becomes larger under the surface of the first protrusion 414 as the first protrusion 414 rotates, until the first sliding block 412 abuts against the side surface of the first cylinder 415, and the first sliding block 412 is at the extended limit position. The first sliding block 412 includes a first upper sliding block 4121 connected to the first spring 414, and a first lower sliding block 4122 abutting against the first protrusion 414 and having a first sliding groove, the first upper sliding block 4121 is slidably disposed in the first sliding groove, and a first elastic body 4123 is disposed between the first upper sliding block 4121 and a groove bottom of the first sliding groove. Wherein, a torsion spring is provided on the first rotating bar 417, which is convenient for the first rotating bar 417 to return.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 do not necessarily 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.
While embodiments of the 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 (10)
1. A track structure, comprising:
the protective sleeve comprises a strip-shaped rail extending towards a preset linear direction, a T-shaped support extending towards the preset linear direction and having an inverted T-shaped cross section, and a protective sleeve;
the inverted T-shaped support comprises a strip-shaped base extending towards the preset linear direction and a strip-shaped support seat extending towards the preset linear direction; the strip-shaped rail is supported on the strip-shaped base through the strip-shaped supporting seat; the protective sleeve is wrapped on the outer surface of the strip-shaped base, the outer surface of the strip-shaped supporting seat and the outer surface of the bottom of the strip-shaped rail; first depressed part and second depressed part have been seted up respectively to the edge of bar base, first depressed part with the second depressed part is located respectively the relative both sides of bar supporting seat.
2. The track structure according to claim 1, wherein the strip-shaped support base is in the form of a flat plate.
3. The track structure of claim 2 wherein the first and second recesses are symmetrically disposed on either side of the bar-shaped bearing.
4. The track structure of claim 1, wherein the first recess comprises a first cavity formed on a left side of the strip base.
5. The track structure of claim 3, wherein the first recess further comprises a second cavity formed on the top surface of the strip-shaped base, the first cavity being in communication with the second cavity.
6. The track structure of claim 5, wherein the second recess comprises a third cavity formed on a right side of the strip-shaped base.
7. The track structure of claim 6, wherein the second recess further comprises a fourth cavity formed on the top surface of the strip-shaped base, the third cavity being in communication with the fourth cavity.
8. The rail structure according to claim 2, further comprising a first positioning portion, a second positioning portion, a third positioning portion, and a fourth positioning portion;
the protective sleeve comprises a first part wrapped on the left side face of the strip-shaped base and a second part wrapped on the right side face of the strip-shaped base; a first notch for clamping a first gauge stop block is formed in the first part corresponding to the first concave part, and a second notch for clamping a second gauge stop block is formed in the second part corresponding to the second concave part;
in the predetermined straight line direction:
the first positioning part and the second positioning part are respectively positioned at two sides of the first gap; the third positioning part and the fourth positioning part are respectively positioned at two sides of the second gap.
9. Track structure according to claim 8,
the first positioning part comprises a first seat body arranged on the outer side surface of the first part, a first telescopic rod connected to the first seat body and having a tail end extending to the first notch, and a first limiting block connected to the tail end of the first telescopic rod and used for abutting against one side of the first gauge stop block;
the second positioning part comprises a second seat body arranged on the outer side surface of the first part, a second telescopic rod connected to the second seat body and having a tail end extending to the first gap, and a second limiting block connected to the tail end of the second telescopic rod and used for abutting against the other side of the first gauge stop block;
the third positioning part comprises a third seat body arranged on the outer side surface of the second part, a third telescopic rod connected to the third seat body and having a tail end extending to the second gap, and a third limiting block connected to the tail end of the third telescopic rod and used for abutting against one side of the second gauge stop block;
the fourth positioning part comprises a fourth seat body arranged on the outer side surface of the second part, a fourth telescopic rod connected to the fourth seat body and extending from the tail end to the second notch, and a fourth limiting block connected to the tail end of the fourth telescopic rod and used for being abutted to the other side of the second gauge stop.
10. The track structure according to claim 1, wherein the first recess is provided in plurality along the predetermined linear direction, and the second recess is provided in plurality along the predetermined linear direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110085095.1A CN112962362B (en) | 2021-01-21 | 2021-01-21 | Track structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110085095.1A CN112962362B (en) | 2021-01-21 | 2021-01-21 | Track structure |
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| Publication Number | Publication Date |
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| CN112962362A true CN112962362A (en) | 2021-06-15 |
| CN112962362B CN112962362B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110085095.1A Active CN112962362B (en) | 2021-01-21 | 2021-01-21 | Track structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995020070A1 (en) * | 1994-01-21 | 1995-07-27 | Allevard | Device for anchoring a rail |
| CA2472402A1 (en) * | 2003-06-23 | 2004-12-23 | Performance Polymers Inc. | Boot for streetcar rails |
| CN208632886U (en) * | 2018-07-11 | 2019-03-22 | 闫帅 | A kind of fixed device of mine track fastening |
| CN208869878U (en) * | 2018-06-07 | 2019-05-17 | 安徽省综合交通研究院股份有限公司 | A kind of multiple trapped orbit and mating fastener |
| CN210238160U (en) * | 2019-02-13 | 2020-04-03 | 陕西长美科技有限责任公司 | Embedded type rail vibration damping |
| CN210826949U (en) * | 2019-09-26 | 2020-06-23 | 陕西长美科技有限责任公司 | Totally-enclosed flexible protection device for steel rail |
| CN211689697U (en) * | 2019-12-18 | 2020-10-16 | 中车眉山车辆有限公司 | Automatic clamping and positioning device for transporting steel rails |
-
2021
- 2021-01-21 CN CN202110085095.1A patent/CN112962362B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995020070A1 (en) * | 1994-01-21 | 1995-07-27 | Allevard | Device for anchoring a rail |
| CA2472402A1 (en) * | 2003-06-23 | 2004-12-23 | Performance Polymers Inc. | Boot for streetcar rails |
| CN208869878U (en) * | 2018-06-07 | 2019-05-17 | 安徽省综合交通研究院股份有限公司 | A kind of multiple trapped orbit and mating fastener |
| CN208632886U (en) * | 2018-07-11 | 2019-03-22 | 闫帅 | A kind of fixed device of mine track fastening |
| CN210238160U (en) * | 2019-02-13 | 2020-04-03 | 陕西长美科技有限责任公司 | Embedded type rail vibration damping |
| CN210826949U (en) * | 2019-09-26 | 2020-06-23 | 陕西长美科技有限责任公司 | Totally-enclosed flexible protection device for steel rail |
| CN211689697U (en) * | 2019-12-18 | 2020-10-16 | 中车眉山车辆有限公司 | Automatic clamping and positioning device for transporting steel rails |
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| Publication number | Publication date |
|---|---|
| CN112962362B (en) | 2022-07-12 |
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